/* ============================================
   CSS Variables
   ============================================ */
:root {
    /* Colors - Light Mode */
    --color-bg-page: #f6f7f2;
    --color-bg-card: #ffffff;
    --color-bg-header: #ffffff;
    --color-bg-input: #ffffff;

    --color-text-primary: #172033;
    --color-text-secondary: #4b5563;
    --color-text-inverse: #172033;
    --color-text-muted: #6b7280;

    --color-border: #cbd3c9;
    --color-border-soft: #e2e7de;
    --color-border-focus: #0f766e;
    --color-blue-soft: #eef5f3;
    --color-blue-line: #d6e2dc;

    /* Accent Colors */
    --color-accent-primary: #0f766e;
    --color-accent-success: #15803d;
    --color-accent-warning: #b45309;
    --color-accent-danger: #dc2626;
    --color-accent-purple: #6d5bd0;

    /* Metric Card Colors (corrispondono alle linee del grafico) */
    --color-metric-fp: #2563eb;
    --color-metric-pac: #16a34a;
    --color-metric-mix: #b45309;
    --color-metric-breakeven: #7c3aed;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgb(23 32 51 / 0.06);
    --shadow-md: 0 8px 20px rgb(23 32 51 / 0.08), 0 1px 2px rgb(23 32 51 / 0.06);
    --shadow-lg: 0 18px 50px rgb(23 32 51 / 0.16);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Spacing */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 8px;
    --control-width: 22rem;
    --control-wide-width: 28rem;

    /* Transitions */
    --transition: 0.2s ease;
}

/* ============================================
   Base Styles
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Niente scroll-behavior globale: animerebbe anche il ripristino
   dello scroll al refresh. Gli scroll fluidi voluti sono in JS. */
html {
    overflow-x: hidden;
}

body {
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text-primary);
    background:
        linear-gradient(180deg, #eef2e8 0, var(--color-bg-page) 240px),
        var(--color-bg-page);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ============================================
   Header
   ============================================ */
header {
    background: var(--color-bg-header);
    color: var(--color-text-inverse);
    padding: 0.875rem 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
    border-top: 3px solid var(--color-accent-primary);
    border-bottom: 1px solid var(--color-border-soft);
    box-shadow: 0 1px 0 rgb(23 32 51 / 0.04);
}

.header-content {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-width: 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    min-width: 0;
}

.logo h1 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
    overflow-wrap: anywhere;
}

.subheader {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ============================================
   Page Container
   ============================================ */
.page-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1.5rem;
    min-width: 315px;
}

.main-content {
    width: 100%;
}

/* ============================================
   Tabs
   ============================================ */
.tabs {
    display: flex;
    gap: 1.25rem;
    border: 0;
    border-radius: 0;
    padding: 0;
    background: transparent;
    box-shadow: none;
    overflow-x: auto;
    flex: 0 0 auto;
    min-width: 0;
}

.tab {
    padding: 0.25rem 0;
    font-size: 0.875rem;
    font-weight: 650;
    color: var(--color-text-secondary);
    background: transparent;
    border: none;
    cursor: pointer;
    border-radius: 0;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
}

.tab:hover {
    color: var(--color-accent-primary);
}

.tab.active {
    color: var(--color-accent-primary);
    background: transparent;
    box-shadow: none;
    border-bottom-color: var(--color-accent-primary);
}

.tab i {
    margin-right: 0.5rem;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

#calculator-content.active {
    display: flex;
    flex-direction: column;
}

#input-form {
    order: 1;
}

#calculator-content .metrics-dashboard {
    order: 2;
}

#calculator-content .result-explanation {
    order: 3;
}

#calculator-content .chart-section {
    order: 5;
}

#calculator-content .results-section {
    order: 4;
}

/* ============================================
   Metrics Dashboard
   ============================================ */
.metrics-dashboard {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.metric-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-blue-line);
    border-top: 4px solid var(--color-border);
    position: relative;
    transition: var(--transition);
}

.metric-card:hover {
    border-color: #93c5fd;
    box-shadow: var(--shadow-md);
}

.metric-card.metric-fp {
    border-top-color: var(--color-metric-fp);
}

.metric-card.metric-pac {
    border-top-color: var(--color-metric-pac);
}

.metric-card.metric-mix {
    border-top-color: var(--color-metric-mix);
}

.metric-card.metric-sequence {
    border-top-color: var(--color-metric-breakeven);
}

.metric-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--color-text-primary);
}

.metric-value-compact {
    font-size: 1rem;
    line-height: 1.35;
    white-space: normal;
}

.metric-subtitle {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 0.25rem;
}

.metric-badge {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: linear-gradient(135deg, var(--color-accent-success), #10b981);
    color: white;
    font-size: 0.625rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
}

.metric-card.best {
    background: linear-gradient(180deg, #f0fdf4, var(--color-bg-card) 70%);
    border-color: rgba(5, 150, 105, 0.45);
    border-top-color: var(--color-accent-success);
}

.result-explanation {
    background: linear-gradient(180deg, #f8fbff, #ffffff);
    border: 1px solid var(--color-blue-line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
    padding: 1rem;
}

.result-explanation-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.result-explanation-header h3 {
    color: var(--color-text-primary);
    font-size: 1rem;
    font-weight: 700;
    margin: 0 0 0.25rem;
}

.result-explanation-header p {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
    margin: 0;
}

.result-explanation-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
}

.result-explanation-card {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: flex-start;
    gap: 0.75rem;
    min-width: 0;
    padding: 0.875rem;
    background: #ffffff;
    border: 1px solid #d8e6f7;
    border-radius: var(--radius-md);
}

.result-explanation-card i {
    color: var(--color-accent-primary);
    font-size: 1rem;
    line-height: 1.4;
    margin-top: 0.125rem;
}

.result-explanation-label {
    color: var(--color-text-secondary);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0;
    margin-bottom: 0.25rem;
}

.result-explanation-value {
    color: var(--color-text-primary);
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.25;
    overflow-wrap: anywhere;
}

.result-explanation-detail {
    color: var(--color-text-muted);
    font-size: 0.78rem;
    line-height: 1.35;
    margin-top: 0.25rem;
}

/* ============================================
   Parameter Cards Grid
   ============================================ */
.calculator-mode-panel {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 1rem;
    padding: 0.875rem 1rem;
    margin-bottom: 1rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-blue-line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.mode-actions {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0.75rem;
    flex-wrap: wrap;
    flex: 0 0 auto;
}

.mode-copy {
    min-width: 0;
}

.mode-title {
    color: var(--color-text-primary);
    font-size: 0.9rem;
    font-weight: 700;
}

.mode-subtitle {
    color: var(--color-text-secondary);
    font-size: 0.78rem;
    line-height: 1.35;
    margin-top: 0.125rem;
}

.guided-cta {
    align-items: center;
    background: #0f5eea;
    border: 1px solid #0b4fc7;
    border-radius: 8px;
    box-shadow: 0 10px 22px rgba(15, 94, 234, 0.24);
    color: #ffffff;
    display: inline-flex;
    font-size: 0.9rem;
    font-weight: 800;
    gap: 0.5rem;
    min-height: 2.75rem;
    padding: 0.72rem 1rem;
}

.guided-cta:hover {
    background: #0b4fc7;
    border-color: #093f9f;
    color: #ffffff;
    transform: translateY(-1px);
}

.guided-cta:focus-visible {
    outline: 3px solid rgba(15, 94, 234, 0.28);
    outline-offset: 2px;
}

.control-section-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.75rem;
    padding-top: 0.25rem;
    margin: 0 0 0.75rem;
    border-top: 1px solid var(--color-border-soft);
}

.control-section-heading:first-child {
    padding-top: 0;
    border-top: 0;
}

.control-section-heading h4 {
    margin: 0;
    color: var(--color-text-primary);
    font-size: 0.78rem;
    font-weight: 800;
}

.form-row + .control-section-heading,
.variation-grid + .control-section-heading,
.info-box + .control-section-heading {
    margin-top: 1.25rem;
}

.control-section-heading span:not(.section-hint) {
    color: var(--color-text-primary);
    font-size: 0.78rem;
    font-weight: 800;
}

.section-hint {
    color: var(--color-text-muted);
    font-size: 0.75rem;
    line-height: 1.35;
    text-align: right;
}

.computed-output {
    display: flex;
    align-items: center;
    min-height: 2.75rem;
    padding: 0 0.875rem;
    color: var(--color-text-primary);
    background: #f8fbff;
    border: 1px solid var(--color-blue-line);
    border-radius: var(--radius-sm);
    font-weight: 800;
}

.card-more-options {
    margin-top: 0.875rem;
    padding: 0.75rem 0.875rem;
    background: #f8fbff;
    border: 1px solid var(--color-blue-line);
    border-radius: var(--radius-sm);
}

.card-more-options summary {
    cursor: pointer;
    color: var(--color-accent-primary);
    font-size: 0.82rem;
    font-weight: 800;
}

.card-more-options summary:hover {
    color: #1d4ed8;
}

.card-more-options[open] summary {
    margin-bottom: 0.875rem;
}

.advanced-tax-options .control-section-heading:first-of-type {
    margin-top: 0;
}

.option-field {
    display: flex;
    align-items: end;
}

.option-field .toggle-label {
    min-height: 2.75rem;
}

.control-section-heading small {
    color: var(--color-text-muted);
    font-size: 0.74rem;
    font-weight: 500;
    text-align: right;
}

.params-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.param-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-blue-line);
    overflow: hidden;
    min-width: 0;
}

.param-card-full {
    grid-column: 1 / -1;
}

.param-card .card-header {
    background: linear-gradient(180deg, #f8fbff, var(--color-bg-card));
    color: var(--color-text-primary);
    padding: 0.875rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--color-blue-line);
}

.param-card .card-header i,
.results-title i,
.chart-title i {
    color: var(--color-accent-primary);
}

.param-card .card-body {
    padding: 1rem;
}

/* ============================================
   Form Elements
   ============================================ */
.form-group {
    margin-bottom: 1rem;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
    font-family: var(--font-sans);
    color: var(--color-text-primary);
    background: var(--color-bg-input);
    border: 1px solid #cbd8e8;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

/* Mostra spinners su input number */
input[type="number"].form-control::-webkit-outer-spin-button,
input[type="number"].form-control::-webkit-inner-spin-button {
    -webkit-appearance: inner-spin-button;
    opacity: 1;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}

.form-control:disabled {
    background: var(--color-bg-page);
    color: var(--color-text-secondary);
    cursor: not-allowed;
    opacity: 0.7;
}

select.form-control {
    cursor: pointer;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-color: var(--color-bg-input);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1em 1em;
    padding-right: 2.5rem;
}

select.form-control::-ms-expand {
    display: none;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.form-row + .form-row {
    margin-top: 1rem;
}

.info-box + .input-warnings,
.info-box + .form-row,
.input-warnings + .form-row,
.options-row {
    margin-top: 1.25rem;
}

.form-row-4 {
    grid-template-columns: repeat(4, 1fr);
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.local-tax-panel {
    padding: 0.75rem;
    margin-bottom: 1rem;
    background: #f8fbff;
    border: 1px solid #d8e6f7;
    border-radius: var(--radius-md);
}

.local-tax-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.local-tax-title {
    color: var(--color-text-primary);
    font-size: 0.78rem;
    font-weight: 800;
}

.local-tax-subtitle {
    margin-top: 0.15rem;
    color: var(--color-text-muted);
    font-size: 0.74rem;
}

.local-tax-mode-toggle {
    display: inline-flex;
    flex: 0 0 auto;
    padding: 0.2rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-blue-line);
    border-radius: var(--radius-sm);
}

.local-tax-mode-button {
    border: 0;
    border-radius: calc(var(--radius-sm) - 2px);
    padding: 0.4rem 0.65rem;
    color: var(--color-text-secondary);
    background: transparent;
    font-family: var(--font-sans);
    font-size: 0.76rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.local-tax-mode-button.active {
    color: white;
    background: var(--color-accent-primary);
}

.local-tax-auto-fields {
    display: none;
}

.local-tax-panel[data-local-tax-mode-current="auto"] .local-tax-manual-fields {
    display: none;
}

.local-tax-panel[data-local-tax-mode-current="auto"] .local-tax-auto-fields {
    display: grid;
}

.local-tax-panel[data-local-tax-mode-current="auto"] .info-box.local-tax-auto-fields {
    display: grid;
}

.local-tax-auto-fields.form-row {
    margin-top: 0.75rem;
}

.autocomplete-group {
    position: relative;
}

.autocomplete-results {
    display: none;
    position: absolute;
    z-index: 20;
    top: calc(100% + 0.25rem);
    right: 0;
    left: 0;
    max-height: 17rem;
    overflow-y: auto;
    padding: 0.25rem;
    background: var(--color-bg-card);
    border: 1px solid #cbd8e8;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
}

.autocomplete-results.is-visible {
    display: block;
}

.autocomplete-option {
    width: 100%;
    border: 0;
    border-radius: calc(var(--radius-sm) - 2px);
    padding: 0.55rem 0.65rem;
    color: var(--color-text-primary);
    background: transparent;
    font-family: var(--font-sans);
    font-size: 0.82rem;
    text-align: left;
    cursor: pointer;
}

.autocomplete-option:hover,
.autocomplete-option:focus {
    outline: none;
    background: var(--color-blue-soft);
}

.autocomplete-empty {
    padding: 0.55rem 0.65rem;
    color: var(--color-text-muted);
    font-size: 0.82rem;
}

.variation-grid {
    background: #f8fbff;
    border: 1px solid #d8e6f7;
    border-radius: var(--radius-md);
    margin-top: 0.75rem;
    padding: 0.75rem;
}

.variation-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.625rem;
}

.variation-header > .help-trigger {
    color: var(--color-text-primary);
    font-size: 0.78rem;
    font-weight: 700;
}

.variation-toggle {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    color: var(--color-text-secondary);
    font-size: 0.78rem;
    font-weight: 600;
}

.variation-toggle label {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    margin: 0;
}

.variation-toggle input {
    accent-color: var(--color-accent-primary);
}

.variation-grid .form-group {
    margin-bottom: 0;
}

.variation-grid .form-group label {
    font-size: 0.72rem;
    margin-bottom: 0.375rem;
}

.variation-grid[aria-disabled="true"] {
    opacity: 0.58;
}

.scenario-variable {
    margin-top: 1rem;
}

.scenario-variable:first-of-type {
    margin-top: 0.75rem;
}

.scenario-variable-row {
    grid-template-columns: minmax(12rem, 0.82fr) minmax(18rem, 1.18fr);
    align-items: start;
}

.scenario-variable-row .variation-grid {
    margin-top: 0;
}

.investment-mode-summary div {
    background: #ffffff;
}

.investment-mode-summary div[hidden] {
    display: none;
}

.investment-mode-note {
    border-color: #9fc7ff;
}

/* Info Box */
.info-box {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
    gap: 0.5rem;
    padding: 0.625rem 0.875rem;
    margin-top: 0.75rem;
    font-size: 0.8125rem;
    color: #1e3a8a;
    background: var(--color-blue-soft);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-blue-line);
    min-width: 0;
    max-width: 100%;
}

.info-box i {
    font-size: 0.875rem;
    margin-top: 0.125rem;
    flex: 0 0 auto;
}

.info-box span {
    min-width: 0;
    overflow-wrap: anywhere;
    word-break: normal;
}

.info-box strong {
    font-weight: 600;
}

.assumptions-details {
    margin-top: 0.75rem;
    padding: 0.75rem 0.875rem;
    color: var(--color-text-secondary);
    background: #f8fafc;
    border: 1px solid var(--color-border-soft);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
}

.assumptions-details summary {
    cursor: pointer;
    color: var(--color-text-primary);
    font-weight: 700;
}

.assumptions-details ul {
    margin: 0.625rem 0 0;
    padding-left: 1.1rem;
}

.assumptions-details li + li {
    margin-top: 0.35rem;
}

/* ============================================
   Guided Mode
   ============================================ */
body.modal-open {
    overflow: hidden;
}

.guided-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.guided-modal.is-open {
    display: flex;
}

.guided-backdrop {
    position: absolute;
    inset: 0;
    background: rgb(15 23 42 / 0.46);
}

.guided-dialog {
    position: relative;
    display: flex;
    flex-direction: column;
    width: min(760px, 100%);
    height: min(720px, calc(100vh - 2rem));
    background: var(--color-bg-card);
    border: 1px solid var(--color-blue-line);
    border-radius: var(--radius-lg);
    box-shadow: 0 24px 80px rgb(15 23 42 / 0.28);
    overflow: hidden;
}

.guided-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.125rem 1.25rem;
    border-bottom: 1px solid var(--color-blue-line);
    background: linear-gradient(180deg, #f8fbff, var(--color-bg-card));
}

.guided-header h2 {
    margin: 0.125rem 0 0;
    color: var(--color-text-primary);
    font-size: 1.15rem;
}

.guided-eyebrow {
    color: var(--color-accent-primary);
    font-size: 0.75rem;
    font-weight: 800;
}

.guided-progress {
    height: 0.25rem;
    background: #e0efff;
}

.guided-progress span {
    display: block;
    width: 16.66%;
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent-primary), #22c55e);
    transition: width 0.2s ease;
}

.guided-body {
    flex: 1 1 auto;
    min-height: 0;
    padding: 1.25rem;
    overflow-y: auto;
}

.guided-step {
    display: none;
}

.guided-step.active {
    display: block;
}

.guided-step h3 {
    margin: 0 0 0.5rem;
    color: var(--color-text-primary);
    font-size: 1rem;
}

.guided-step p {
    max-width: 62ch;
    margin: 0 0 1rem;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.55;
}

.guided-note {
    margin-top: 0.875rem;
    padding: 0.75rem 0.875rem;
    color: #1e3a8a;
    background: var(--color-blue-soft);
    border: 1px solid var(--color-blue-line);
    border-radius: var(--radius-sm);
    font-size: 0.84rem;
    line-height: 1.45;
}

.guided-tax-toggle {
    width: fit-content;
    max-width: 100%;
    margin-bottom: 1rem;
}

.guided-tax-auto-fields[aria-hidden="true"] {
    display: none;
}

.guided-tax-manual-fields[aria-hidden="true"] {
    display: none;
}

.guided-tax-auto-fields.form-row {
    margin-top: 0.875rem;
}

.guided-live-summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

.guided-live-summary div {
    min-width: 0;
    padding: 0.875rem;
    background: #f8fbff;
    border: 1px solid var(--color-blue-line);
    border-radius: var(--radius-sm);
}

.guided-live-summary span {
    display: block;
    color: var(--color-text-muted);
    font-size: 0.74rem;
    font-weight: 700;
}

.guided-live-summary strong {
    display: block;
    margin-top: 0.35rem;
    color: var(--color-text-primary);
    font-size: 0.95rem;
    overflow-wrap: anywhere;
}

.guided-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--color-blue-line);
    background: #f8fbff;
}

#guided-finish {
    display: none;
}

.input-warnings {
    display: none;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0;
}

.input-warnings.is-visible {
    display: flex;
    margin-top: 0.75rem;
}

.input-warning {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
    gap: 0.5rem;
    padding: 0.625rem 0.875rem;
    font-size: 0.8125rem;
    color: #92400e;
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-radius: var(--radius-sm);
}

.input-warning i {
    flex: 0 0 auto;
    margin-top: 0.125rem;
}

.input-warning span {
    min-width: 0;
    overflow-wrap: anywhere;
}

/* Toggle Switch */
/* Section Divider */
.section-divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 1.25rem 0 1rem;
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.05em;
}

.section-divider::before,
.section-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--color-border);
}

.section-divider span {
    padding: 0 0.75rem;
}

/* Toggle */
.toggle-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-height: 32px;
    cursor: pointer;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-primary);
}

.toggle-label input[type="checkbox"] {
    display: none;
}

.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    background: #cbd5e1;
    border-radius: 12px;
    transition: var(--transition);
    flex-shrink: 0;
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: var(--transition);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.toggle-label input[type="checkbox"]:checked + .toggle-switch {
    background: linear-gradient(135deg, var(--color-accent-primary), #60a5fa);
}

.toggle-label input[type="checkbox"]:checked + .toggle-switch::after {
    left: calc(100% - 22px);
}

.toggle-description {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-top: 0.25rem;
    margin-left: 56px;
}

/* Radio Group */
.radio-group {
    display: flex;
    gap: 1rem;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.8125rem;
}

.radio-label input[type="radio"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-accent-primary);
}

/* Help trigger - click per info */
.help-trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.35em;
    cursor: pointer;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.help-trigger:hover {
    color: var(--color-accent-primary);
}

/* Modal Help */
.help-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.help-modal.active {
    display: flex;
}

.help-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.38);
    backdrop-filter: blur(3px);
}

.help-modal-content {
    position: relative;
    display: flex;
    flex-direction: column;
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    border-radius: var(--radius-lg);
    width: min(440px, calc(100vw - 2rem));
    height: 280px;
    box-shadow: 0 24px 60px rgb(15 23 42 / 0.24);
    border: 1px solid var(--color-blue-line);
    overflow: hidden;
    font-size: 0.875rem;
    line-height: 1.5;
    text-align: left;
}

.help-modal-header {
    display: grid;
    grid-template-columns: 36px 1fr 32px;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1rem 0.875rem;
    background: linear-gradient(180deg, #f8fbff, #ffffff);
    border-bottom: 1px solid var(--color-blue-line);
}

.help-modal-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent-primary);
    background: var(--color-blue-soft);
    border: 1px solid var(--color-blue-line);
    border-radius: var(--radius-md);
}

.help-modal-title {
    font-weight: 600;
    font-size: 1rem;
}

.help-modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.help-modal-close:hover {
    color: var(--color-text-primary);
    background: var(--color-blue-soft);
    border-color: var(--color-blue-line);
}

.help-modal-text {
    flex: 1 1 auto;
    min-height: 0;
    padding: 1rem;
    color: var(--color-text-secondary);
    overflow-y: auto;
}


/* ============================================
   Cards (Results & Strategy)
   ============================================ */
.card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.card-header {
    background: var(--color-bg-header);
    color: var(--color-text-inverse);
    padding: 1rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.card-body {
    padding: 1.5rem;
}

/* ============================================
   Results Section
   ============================================ */
.results-section {
    margin-top: 1.5rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-blue-line);
    border-radius: var(--radius-lg);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
}

.results-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    user-select: none;
}

.results-title:hover {
    color: var(--color-accent-primary);
}

.results-title .toggle-icon {
    transition: transform 0.2s ease;
}

.results-section.collapsed .toggle-icon {
    transform: rotate(-90deg);
}

.results-content {
    transition: all 0.2s ease;
}

.results-section.collapsed .results-content {
    display: none;
}

.table-view-tabs {
    display: flex;
    gap: 0.375rem;
    margin-bottom: 0.875rem;
    padding: 0.25rem;
    width: fit-content;
    max-width: 100%;
    border: 1px solid var(--color-blue-line);
    border-radius: var(--radius-md);
    background: #f8fbff;
    overflow-x: auto;
}

.table-view-tab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.5rem 0.75rem;
    border: 0;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-text-secondary);
    font: inherit;
    font-size: 0.8125rem;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
}

.table-view-tab:hover {
    color: var(--color-text-primary);
    background: var(--color-blue-soft);
}

.table-view-tab.active {
    color: white;
    background: linear-gradient(135deg, var(--color-accent-primary), #3b82f6);
}

/* ============================================
   Chart Section
   ============================================ */
.chart-section {
    margin-top: 2rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-blue-line);
    border-radius: var(--radius-lg);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
}

.chart-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    user-select: none;
}

.chart-title:hover {
    color: var(--color-accent-primary);
}

.chart-title .toggle-icon {
    transition: transform 0.2s ease;
}

.chart-section.collapsed .toggle-icon {
    transform: rotate(-90deg);
}

.chart-content {
    transition: all 0.2s ease;
}

.chart-section.collapsed .chart-content {
    display: none;
}

.chart-container {
    background: linear-gradient(180deg, #f8fbff, var(--color-bg-page));
    border: 1px solid var(--color-blue-line);
    border-radius: var(--radius-md);
    padding: 1rem;
    height: 350px;
}

/* ============================================
   Table Styles
   ============================================ */
.table-container {
    overflow: hidden;
    overflow-x: auto;
    margin-bottom: 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-blue-line);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
}

#grid-div {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

#output-table {
    table-layout: fixed;
    min-width: 900px;
}

#output-table.table-fp {
    min-width: 680px;
}

#output-table.table-pac {
    min-width: 360px;
}

#output-table.table-mix {
    min-width: 760px;
}

#output-table.table-comparison {
    min-width: 620px;
}

#output-table td {
    white-space: nowrap;
}

th {
    background: #eaf3ff;
    color: #1e3a8a;
    padding: 0.75rem 1rem;
    text-align: right;
    font-weight: 600;
    font-size: 0.6875rem;
    letter-spacing: 0;
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 10;
}

th:first-child {
    text-align: left;
    position: sticky;
    left: 0;
    z-index: 20;
}

td {
    padding: 0.625rem 1rem;
    text-align: right;
    border-bottom: 1px solid #e3edf9;
    font-variant-numeric: tabular-nums;
}

td:first-child {
    text-align: left;
    font-weight: 600;
    background: var(--color-bg-card);
    position: sticky;
    left: 0;
    z-index: 5;
}

tr:hover td {
    background: rgba(37, 99, 235, 0.06);
}

tr:hover td:first-child {
    background: var(--color-bg-card);
}

/* Best Value Highlight */
td.best-value {
    color: var(--color-accent-success);
    font-weight: 700;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: var(--font-sans);
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent-primary), #3b82f6);
    color: white;
    border-color: var(--color-accent-primary);
}

.btn-primary:hover {
    background: #1d4ed8;
    box-shadow: 0 8px 18px rgb(37 99 235 / 0.20);
}

.btn-secondary {
    color: var(--color-accent-primary);
    background: #f8fbff;
    border-color: var(--color-blue-line);
}

.btn-secondary:hover {
    color: #1d4ed8;
    background: var(--color-blue-soft);
    border-color: #93c5fd;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.icon-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    color: var(--color-text-secondary);
    background: #f8fbff;
    border: 1px solid var(--color-blue-line);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.icon-button:hover {
    color: var(--color-text-primary);
    background: var(--color-blue-soft);
}

.action-buttons {
    display: flex;
    gap: 0.75rem;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
    margin-right: 0.5rem;
}

/* Loading Animation */
.loading-dots {
    display: inline-flex;
    gap: 0.25rem;
    margin-right: 0.5rem;
}

.loading-dot {
    width: 6px;
    height: 6px;
    background: var(--color-accent-primary);
    border-radius: 50%;
    animation: pulse 1.4s infinite ease-in-out both;
}

.loading-dot:nth-child(1) { animation-delay: -0.32s; }
.loading-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes pulse {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

/* ============================================
   Documentation Section - Minimal Style
   ============================================ */

/* Main content area */
.docs-section {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-blue-line);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    overflow-x: hidden;
    max-width: 100%;
    box-sizing: border-box;
}

.docs-section * {
    max-width: 100%;
    box-sizing: border-box;
}

.docs-index {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    max-width: none;
    margin: 0 0 1rem;
    padding: 1rem;
}

.docs-index strong {
    display: block;
    padding: 0 0 0.5rem 0.875rem;
    font-size: 0.8125rem;
    letter-spacing: 0;
    color: var(--color-text-primary);
}

.docs-index a {
    display: block;
    padding: 0.45rem 0.875rem;
    border-top: 1px solid var(--color-border-soft);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    line-height: 1.35;
}

.docs-index a:hover {
    color: var(--color-accent-primary);
    background: var(--color-blue-soft);
}

/* Typography */
.docs-section h2 {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 2.5rem 0 1rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-blue-line);
}

.docs-section h2:first-child {
    margin-top: 0;
}

.docs-section h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 1.75rem 0 0.75rem 0;
}

.docs-section h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 1.25rem 0 0.5rem 0;
}

.docs-section p {
    margin-bottom: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    font-size: 0.9375rem;
}

.docs-section ul,
.docs-section ol {
    margin-bottom: 1rem;
    padding-left: 1.25rem;
    color: var(--color-text-secondary);
}

.docs-section li {
    margin-bottom: 0.375rem;
    line-height: 1.6;
}

.docs-section strong {
    color: var(--color-text-primary);
}

/* Code blocks - stesso neutro verde-grigio del resto del sito */
.docs-section pre {
    background: #f8fbf9;
    border: 1px solid var(--color-blue-line);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin: 1rem 0;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    line-height: 1.5;
    color: var(--color-text-primary);
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* Tables - clean and simple */
.docs-section table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 0.875rem;
}

.docs-section th,
.docs-section td {
    padding: 0.625rem 0.875rem;
    text-align: left;
    word-wrap: break-word;
    overflow-wrap: break-word;
    border: 1px solid var(--color-border);
}

.docs-section th {
    background: #f8fbf9;
    font-weight: 600;
    color: var(--color-text-primary);
}

.docs-section td {
    color: var(--color-text-secondary);
}

/* Highlight box for important info */
.docs-section .highlight {
    background: var(--color-blue-soft);
    border-left: 3px solid var(--color-accent-primary);
    padding: 1rem;
    margin: 1rem 0;
}

/* Disclaimer at bottom */
.docs-section .disclaimer {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: #eef6ff;
    color: var(--color-text-muted);
    text-align: center;
    padding: 1.5rem;
    margin-top: 3rem;
    font-size: 0.8125rem;
    border-top: 1px solid var(--color-blue-line);
}

.footer .github-link {
    margin-top: 0.75rem;
}

.footer .footer-visits {
    margin-top: 0.35rem;
}

.footer .github-link a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition);
}

.footer .github-link a:hover {
    color: var(--color-accent-warning);
}

.footer .github-link .fa-star {
    color: var(--color-accent-warning);
}

/* ============================================
   Go to Top Button
   ============================================ */
.go-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    background: var(--color-accent-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
}

.go-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.go-to-top:hover {
    background: #2563eb;
    transform: translateY(-3px);
}

/* ============================================
   UX/UI Refactor
   ============================================ */
#calculator-content.active {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

#calculator-content .intro-section { order: 1; }
#calculator-content .config-workspace { order: 2; }
#calculator-content .results-workspace { order: 3; }
#calculator-content .chart-section { order: 4; }
#calculator-content .detail-workspace { order: 5; }

#input-form {
    order: initial;
}

.intro-section {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 2rem;
    padding: 1.35rem 1.45rem;
    background: #ffffff;
    border: 1px solid var(--color-border-soft);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.intro-copy {
    min-width: 0;
}

.intro-copy h2 {
    max-width: 56rem;
    margin: 0;
    color: var(--color-text-primary);
    font-size: clamp(1.55rem, 2.7vw, 2.35rem);
    font-weight: 780;
    line-height: 1.08;
}

.intro-copy p:not(.section-kicker) {
    max-width: 54rem;
    margin: 0.75rem 0 0;
    color: var(--color-text-secondary);
    font-size: 0.98rem;
    line-height: 1.55;
}

.intro-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 1rem;
    flex-wrap: wrap;
    min-width: 0;
}

.intro-primary {
    min-height: 2.7rem;
    padding-inline: 1rem;
}

.intro-link {
    color: var(--color-accent-primary);
    font-weight: 750;
    text-decoration: none;
    white-space: normal;
}

.intro-link:hover {
    text-decoration: underline;
    text-underline-offset: 4px;
}

.workspace-section {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-soft);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    min-width: 0;
}

.section-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 0.95rem 1rem 0.8rem;
    border-bottom: 1px solid var(--color-border-soft);
    background: #fbfcf8;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    min-width: 0;
}

.section-heading-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 1rem;
    min-width: 0;
}

.section-collapse-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--color-accent-primary);
    cursor: pointer;
    font: inherit;
    font-size: 0.78rem;
    font-weight: 750;
    line-height: 1;
    white-space: nowrap;
}

.section-collapse-toggle:hover {
    text-decoration: underline;
    text-underline-offset: 4px;
}

.section-collapse-toggle i {
    font-size: 0.7rem;
    transition: transform var(--transition);
}

.config-workspace.collapsed .section-collapse-toggle i {
    transform: rotate(-90deg);
}

.config-workspace.collapsed #input-form {
    display: none;
}

.annual-explorer-section.collapsed .annual-explorer-body {
    display: none;
}

.section-heading h2 {
    margin: 0;
    color: var(--color-text-primary);
    font-size: 1.02rem;
    font-weight: 750;
    line-height: 1.2;
}

.section-heading p {
    max-width: 42rem;
    margin: 0;
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
    line-height: 1.45;
    text-align: right;
    overflow-wrap: anywhere;
}

.section-heading .section-kicker {
    margin: 0 0 0.2rem;
    color: var(--color-accent-primary);
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-align: left;
}

.config-workspace #input-form {
    padding: 1.25rem;
}

.btn-primary {
    background: var(--color-accent-primary);
    border-color: #0b5f59;
    box-shadow: none;
}

.btn-primary:hover {
    background: #0b5f59;
    border-color: #084c48;
    box-shadow: 0 8px 18px rgb(15 118 110 / 0.18);
}

.params-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    margin-bottom: 0;
    background: var(--color-border-soft);
    border: 1px solid var(--color-border-soft);
}

.param-card {
    background: #ffffff;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    overflow: visible;
}

.param-card .card-header {
    background: #fbfcf8;
    border-bottom-color: var(--color-border-soft);
    color: var(--color-text-primary);
    font-size: 0.86rem;
    font-weight: 780;
    padding: 0.85rem 1rem;
}

.param-card .card-body {
    padding: 1rem;
}

.param-card .card-header i,
.results-title i,
.chart-title i {
    color: var(--color-accent-primary);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), var(--control-width)));
    gap: 0.875rem;
    justify-content: start;
}

.form-row-4 {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), var(--control-width)));
}

.form-group.full-width {
    grid-column: auto;
}

.form-group,
.variation-grid {
    width: min(100%, var(--control-width));
    max-width: none;
}

.form-control,
.computed-output,
.variation-grid {
    width: 100%;
}

.autocomplete-group,
.local-tax-panel,
.card-more-options,
.assumptions-details,
.guided-note,
.info-box,
    .input-warnings,
    .guided-live-summary,
    .investment-mode-summary,
    .return-gross-fields {
    max-width: 100%;
}

.local-tax-panel .form-row,
.card-more-options .form-row,
.return-gross-fields .form-row,
.guided-step .form-row {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), var(--control-width)));
    justify-content: start;
}

.variation-grid .form-row {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 8rem), 10rem));
}

.scenario-variable-row {
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
    gap: 0.25rem;
}

.scenario-variable + .scenario-variable,
.scenario-variable + .form-row {
    margin-top: 1rem;
}

.form-group label {
    color: var(--color-text-secondary);
    font-size: 0.78rem;
    font-weight: 700;
}

.form-control,
.computed-output {
    min-height: 2.45rem;
    background: var(--color-bg-input);
    border-color: var(--color-border);
}

.form-control:focus {
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 3px rgb(15 118 110 / 0.14);
}

.control-section-heading {
    border-top-color: var(--color-border-soft);
}

.local-tax-panel,
.card-more-options,
.assumptions-details {
    background: #f8faf5;
    border-color: var(--color-border-soft);
}

.local-tax-mode-toggle,
.table-view-tabs {
    background: #f8faf5;
    border-color: var(--color-border-soft);
}

.local-tax-mode-button.active,
.table-view-tab.active {
    background: var(--color-accent-primary);
    color: #ffffff;
}

.variation-grid {
    margin-top: 0.2rem;
    margin-bottom: 0;
    padding: 0;
    background: #fbfcf8;
    border: 1px solid var(--color-border-soft);
    border-radius: var(--radius-md);
}

.scenario-variable-row .variation-grid {
    width: min(100%, var(--control-width));
    justify-self: start;
}

.variation-grid summary {
    list-style: none;
}

.variation-grid summary::-webkit-details-marker {
    display: none;
}

.variation-header {
    margin: 0;
    min-height: 2.15rem;
    padding: 0.42rem 0.65rem;
    cursor: pointer;
}

.variation-header > span,
.variation-header > .help-trigger {
    color: var(--color-text-secondary);
    font-size: 0.76rem;
    font-weight: 750;
}

.variation-chevron {
    color: var(--color-text-muted);
    font-size: 0.75rem;
    transition: transform var(--transition);
}

.variation-grid[open] .variation-chevron {
    transform: rotate(180deg);
}

.variation-body {
    padding: 0 0.75rem 0.75rem;
}

.variation-toggle {
    width: fit-content;
    margin-bottom: 0.75rem;
    gap: 0.25rem;
    padding: 0.2rem;
    background: #ffffff;
    border: 1px solid var(--color-border-soft);
    border-radius: var(--radius-sm);
}

.variation-toggle label {
    min-width: 2.25rem;
    justify-content: center;
    gap: 0.3rem;
    padding: 0.25rem 0.45rem;
    border-radius: 4px;
    color: var(--color-text-secondary);
    cursor: pointer;
}

.variation-toggle label:has(input:checked) {
    color: #ffffff;
    background: var(--color-accent-primary);
}

.variation-grid .form-row {
    gap: 0.75rem;
}

.info-box,
.guided-note {
    color: #25514d;
    background: #eef5f3;
    border-color: #cfe0da;
}

.input-warning {
    color: #7c3f00;
    background: #fff7ed;
    border-color: #fed7aa;
}

.results-workspace {
    padding: 0;
    overflow: hidden;
}

.results-body {
    padding: 1.5rem;
}

.result-decision-panel {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(22rem, 1.05fr);
    gap: 1px;
    margin-bottom: 1.45rem;
    background: var(--color-border-soft);
    border: 1px solid var(--color-border-soft);
}

.result-decision-main,
.result-decision-side {
    min-width: 0;
    background: #fbfcf8;
    padding: 1.2rem;
}

.result-decision-main {
    background: #f2fbf5;
}

.result-decision-main h3 {
    color: var(--color-text-primary);
    font-size: 1.05rem;
    line-height: 1.2;
    margin: 0.25rem 0 0.65rem;
}

.result-best-value {
    color: var(--color-text-primary);
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.05;
}

.result-decision-main p,
.result-decision-side p {
    color: var(--color-text-secondary);
    font-size: 0.88rem;
    line-height: 1.45;
    margin: 0.65rem 0 0;
}

.result-sequence-value {
    color: var(--color-text-primary);
    font-family: var(--font-mono);
    font-size: 1.45rem;
    font-weight: 800;
    line-height: 1.25;
    margin-top: 0.3rem;
}

.result-block-label {
    color: var(--color-text-secondary);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    margin-bottom: 0.85rem;
}

.results-workspace .metrics-dashboard,
.results-workspace .result-explanation {
    margin: 0;
}

.results-workspace .metrics-dashboard {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    padding: 0 0 1.45rem;
    border-bottom: 1px solid var(--color-border-soft);
}

.results-workspace .metric-card {
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    min-height: 0;
    padding: 0.95rem 1.2rem 0.2rem;
    transition: none;
}

.results-workspace .metric-card:hover {
    border-color: var(--color-border-soft);
    box-shadow: none;
}


.results-workspace .metric-card + .metric-card {
    border-left: 1px solid var(--color-border-soft);
}

.results-workspace .metric-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 1.2rem;
    right: 1.2rem;
    height: 3px;
    border-radius: 999px;
    background: var(--color-border);
}

.results-workspace .metric-card.metric-fp::before {
    background: var(--color-metric-fp);
}

.results-workspace .metric-card.metric-pac::before {
    background: var(--color-metric-pac);
}

.results-workspace .metric-card.metric-mix::before {
    background: var(--color-metric-mix);
}

.results-workspace .metric-label {
    color: var(--color-text-secondary);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    margin-bottom: 0.65rem;
}

.results-workspace .metric-value {
    font-size: 1.55rem;
    line-height: 1.15;
}

.results-workspace .metric-card.best {
    background: #f2fbf5;
}

.results-workspace .metric-card.best::before {
    background: var(--color-accent-success);
}

.results-workspace .metric-badge {
    background: var(--color-accent-success);
    border-radius: 999px;
    top: 0.9rem;
    right: 1.2rem;
    font-size: 0.6rem;
}

.decision-eyebrow {
    color: var(--color-accent-primary);
    display: block;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    margin-bottom: 0.25rem;
}

.results-workspace .result-explanation {
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    padding: 1.35rem 0 0;
}

.results-workspace .result-explanation-header {
    margin-bottom: 1.25rem;
    padding-bottom: 0;
    border-bottom: 0;
}

.results-workspace .result-explanation-header h3 {
    font-size: 1.05rem;
}

.results-workspace .result-explanation-header p {
    max-width: 70rem;
    font-size: 0.93rem;
    line-height: 1.55;
}

.result-analysis-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(20rem, 0.8fr);
    gap: 1.5rem;
}

.result-analysis-group {
    min-width: 0;
}

.result-analysis-group h4 {
    color: var(--color-text-secondary);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    margin: 0 0 0.7rem;
}

.results-workspace .result-explanation-grid {
    display: grid;
    gap: 0;
    border-top: 1px solid var(--color-border-soft);
}

.results-workspace .result-explanation-grid-primary,
.results-workspace .result-explanation-grid-secondary {
    grid-template-columns: 1fr;
}

.results-workspace .result-explanation-card {
    background: transparent;
    border: 0;
    border-radius: 0;
    gap: 0.8rem;
    padding: 1.05rem 1.1rem 1.05rem 0;
}

.results-workspace .result-explanation-card + .result-explanation-card {
    border-top: 1px solid var(--color-border-soft);
}

.results-workspace .result-explanation-card i {
    color: #0f766e;
    margin-top: 0.15rem;
}

.results-workspace .result-explanation-value {
    font-size: 1rem;
}

.results-workspace .result-explanation-detail {
    font-size: 0.82rem;
    line-height: 1.45;
}

.chart-section,
.results-section {
    margin-top: 0;
    padding: 0;
    border-color: var(--color-border-soft);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.results-title,
.chart-title {
    margin: 0;
    padding: 0.95rem 1rem 0.8rem;
    border-bottom: 1px solid var(--color-border-soft);
    background: #fbfcf8;
}

.results-content,
.chart-content {
    padding: 1rem;
}

.chart-container {
    background: #fbfcf8;
    border-color: var(--color-border-soft);
}

.table-container {
    border-color: var(--color-border-soft);
}

th {
    background: #eef5f3;
    color: #25514d;
}

td {
    border-bottom-color: var(--color-border-soft);
}

tr:hover td {
    background: rgb(15 118 110 / 0.055);
}

.guided-dialog,
.help-modal-content,
.docs-section {
    border-color: var(--color-border-soft);
}

.guided-header,
.guided-footer,
.help-modal-header {
    background: #fbfcf8;
    border-color: var(--color-border-soft);
}

.guided-progress {
    background: #e4ece7;
}

.guided-progress span {
    background: var(--color-accent-primary);
}

.guided-live-summary div {
    background: #fbfcf8;
    border-color: var(--color-border-soft);
}

.footer {
    background: #eef2e8;
    border-top-color: var(--color-border-soft);
}

/* ============================================
   Responsive Design
   ============================================ */
.result-explanation-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.result-explanation-header {
    margin-bottom: 1.1rem;
}

.result-explanation-card {
    padding: 1rem;
}

.result-explanation-value {
    font-size: 1rem;
}

.result-explanation-detail {
    font-size: 0.82rem;
}

.chart-section,
.results-section {
    padding: 0;
}

.chart-container {
    height: 360px;
}

.results-title,
.chart-title {
    font-size: 0.92rem;
}

.table-view-tabs {
    width: 100%;
}

.table-view-tab {
    flex: 1 1 0;
}

@media (max-width: 1120px) {
    .params-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .metrics-dashboard {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .result-explanation-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 980px) {
    .intro-section {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .intro-actions {
        justify-content: flex-start;
    }
}

@media (max-width: 900px) {
    .params-grid {
        grid-template-columns: 1fr;
    }

    .metrics-dashboard {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .result-explanation-grid {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 901px) and (max-width: 1024px) {
    .form-row-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-content {
        align-items: stretch;
        flex-direction: column;
        gap: 0.75rem;
    }

    .tabs {
        width: 100%;
        justify-content: stretch;
        gap: 0.75rem;
        overflow-x: hidden;
    }

    .tab {
        flex: 1 1 0;
        min-width: 0;
        text-align: center;
    }

    .page-container {
        padding: 1rem;
    }

    .calculator-mode-panel {
        align-items: stretch;
        flex-direction: column;
    }

    .mode-actions {
        justify-content: stretch;
    }

    .mode-actions > .btn {
        width: 100%;
    }

    .params-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .param-card {
        margin-bottom: 0;
    }

    .metrics-dashboard {
        grid-template-columns: 1fr;
        gap: 0.75rem;
        margin-bottom: 1.25rem;
    }

    .metric-card {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0.875rem 1rem;
        gap: 0.75rem;
    }

    .metric-value {
        font-size: 1.25rem;
        text-align: right;
        white-space: nowrap;
    }

    .metric-subtitle {
        display: none;
    }

    .metric-badge {
        display: none !important;
    }

    .result-explanation {
        padding: 0.875rem;
    }

    .result-explanation-grid {
        grid-template-columns: 1fr;
    }

    .result-explanation-card {
        padding: 0.75rem;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0.875rem;
    }

    .form-row + .form-row {
        margin-top: 0.875rem;
    }

    .control-section-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.125rem;
    }

    .control-section-heading small {
        text-align: left;
    }

    .form-row-4 {
        grid-template-columns: 1fr;
    }

    .form-group {
        margin-bottom: 0;
    }

    .card-header {
        padding: 0.875rem 1rem;
        font-size: 0.875rem;
    }

    .card-body {
        padding: 1rem;
    }

    .section-divider {
        margin: 1rem 0;
    }

    .info-box {
        margin-top: 0.875rem;
        padding: 0.75rem;
        font-size: 0.8125rem;
        align-items: flex-start;
    }

    .logo h1 {
        font-size: 1rem;
    }

    .subheader {
        display: none;
    }

    .tabs {
        gap: 0.25rem;
        width: 100%;
    }

    .tab {
        flex: 1 1 0;
        padding: 0.75rem 1rem;
        font-size: 0.8125rem;
        text-align: center;
    }

    .tab i {
        display: none;
    }

    .results-section,
    .chart-section {
        margin-bottom: 1rem;
        padding: 0;
    }

    .results-title,
    .chart-title {
        font-size: 0.9rem;
        margin-bottom: 0;
    }

    .chart-container {
        height: 280px;
    }

    .guided-modal {
        align-items: stretch;
        padding: 0.75rem;
    }

    .guided-dialog {
        width: 100%;
        height: calc(100vh - 1.5rem);
    }

    .guided-header,
    .guided-body,
    .guided-footer {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .guided-footer {
        flex-direction: column-reverse;
    }

    .guided-live-summary {
        grid-template-columns: 1fr;
    }

    .guided-footer .btn {
        justify-content: center;
        width: 100%;
    }

    .docs-nav {
        padding: 1.25rem;
        margin-bottom: 1.5rem;
    }

    .docs-nav-title {
        font-size: 0.8125rem;
    }

    .docs-nav ul {
        gap: 0.5rem;
    }

    .docs-nav a {
        padding: 0.5rem 0.875rem;
        font-size: 0.8125rem;
        word-break: break-word;
    }

    .docs-section {
        padding: 1.25rem;
    }

    .docs-section h2 {
        font-size: 1.25rem;
        margin-top: 1.5rem;
        margin-bottom: 0.75rem;
    }

    .docs-section h2:first-of-type {
        margin-top: 0;
    }

    .docs-section h3 {
        font-size: 1rem;
        margin-top: 1.25rem;
        margin-bottom: 0.5rem;
    }

    .docs-section p {
        font-size: 0.875rem;
        margin-bottom: 0.75rem;
    }

    .docs-section ul,
    .docs-section ol {
        margin-bottom: 0.75rem;
    }

    .docs-section pre {
        font-size: 0.75rem;
        padding: 0.75rem;
        margin-bottom: 0.75rem;
    }

    .docs-section table {
        font-size: 0.75rem;
        margin-bottom: 0.75rem;
        table-layout: fixed;
        width: 100%;
    }

    .docs-section th,
    .docs-section td {
        padding: 0.4rem 0.5rem;
        font-size: 0.7rem;
    }

    .highlight {
        padding: 0.875rem;
        margin: 0.75rem 0;
    }
}

/* Extra small screens */
@media (max-width: 400px) {
    .docs-section {
        padding: 1rem;
    }

    .docs-section pre {
        font-size: 0.6875rem;
    }

    .docs-section table {
        font-size: 0.65rem;
    }

    .docs-section th,
    .docs-section td {
        padding: 0.3rem 0.4rem;
        font-size: 0.65rem;
    }

    .docs-nav a {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    header {
        padding: 0.55rem 0.75rem;
    }

    .subheader {
        display: none;
    }

    .tabs {
        gap: 0.35rem;
    }

    .tab {
        font-size: 0.7rem;
        padding: 0.45rem 0.25rem;
    }

    .intro-section {
        max-width: 100%;
        overflow: hidden;
    }

    .intro-copy {
        max-width: 100%;
    }

    .intro-copy h2 {
        font-size: 1.2rem;
        line-height: 1.14;
        word-break: normal;
    }

    .page-container {
        padding: 0.75rem;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }

    .param-card,
    .metric-card,
    .results-section,
    .chart-section,
    .docs-section {
        width: 100%;
        max-width: calc(100vw - 1.5rem);
        min-width: 0;
    }

    .logo {
        gap: 0.75rem;
    }

    .logo h1 {
        font-size: 0.78rem;
    }

    .help-modal {
        align-items: center;
        padding: 0.75rem;
    }

    .help-modal-content {
        width: min(440px, calc(100vw - 1.5rem));
        height: 300px;
    }

    .help-modal-header {
        grid-template-columns: 32px 1fr 32px;
        padding: 0.875rem;
    }

    .help-modal-icon {
        width: 32px;
        height: 32px;
    }

    .help-modal-text {
        padding: 0.875rem;
    }

    .params-grid {
        gap: 0.875rem;
    }

    .card-header {
        padding: 0.75rem;
        font-size: 0.8125rem;
    }

    .card-body {
        padding: 0.875rem;
    }

    .form-row {
        gap: 0.75rem;
    }

    .form-row + .form-row {
        margin-top: 0.75rem;
    }

    .form-group label {
        font-size: 0.8125rem;
        margin-bottom: 0.375rem;
    }

    .form-control {
        padding: 0.5rem 0.75rem;
        font-size: 0.8125rem;
    }

    .info-box {
        padding: 0.625rem;
        font-size: 0.75rem;
        width: 100%;
        max-width: 100%;
        min-width: 0;
        overflow: hidden;
    }

    .info-box span,
    .input-warning span {
        min-width: 0;
        overflow-wrap: anywhere;
        word-break: normal;
    }

    .metrics-dashboard {
        gap: 0.625rem;
        margin-bottom: 1rem;
    }

    .metric-card {
        padding: 0.75rem;
    }

    .metric-label {
        font-size: 0.625rem;
    }

    .metric-value {
        font-size: 1rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
        padding: 0.625rem 1rem;
        font-size: 0.8125rem;
    }

    .action-buttons {
        flex-direction: column;
    }

    .results-section,
    .chart-section {
        margin-bottom: 0.875rem;
    }

    .results-title,
    .chart-title {
        font-size: 0.8125rem;
        margin-bottom: 0;
    }

    .results-content,
    .chart-content {
        padding: 0.875rem;
    }

    .chart-container {
        height: 240px;
    }

    .table-container {
        padding: 0;
    }

    .docs-section {
        padding: 1rem;
    }

    .docs-section h2 {
        font-size: 1.125rem;
    }

    .docs-section h3 {
        font-size: 0.9375rem;
    }

    .docs-section p,
    .docs-section li {
        font-size: 0.8125rem;
    }

    .go-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 768px) {
    #calculator-content.active {
        gap: 1rem;
    }

    .intro-section {
        padding: 1rem;
    }

    .intro-copy h2 {
        font-size: 1.45rem;
        line-height: 1.12;
        overflow-wrap: anywhere;
    }

    .intro-copy p:not(.section-kicker) {
        font-size: 0.9rem;
    }

    .intro-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .intro-primary,
    .intro-link {
        width: 100%;
    }

    .intro-link {
        text-align: center;
    }

    .section-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.35rem;
        padding: 0.875rem;
    }

    .section-heading p {
        max-width: none;
        text-align: left;
    }

    .section-heading-actions {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.5rem;
    }

    .config-workspace #input-form {
        padding: 0.875rem;
    }

    .mode-copy {
        text-align: left;
    }

    .variation-header {
        padding: 0.7rem 0.75rem;
    }

    .variation-body {
        padding: 0 0.75rem 0.75rem;
    }

    .variation-toggle {
        width: 100%;
    }

    .variation-toggle label {
        flex: 1 1 0;
    }

    .results-body {
        padding: 0.875rem;
    }

    .results-workspace .metrics-dashboard {
        gap: 0;
        grid-template-columns: 1fr;
        margin-bottom: 0;
        padding: 0;
    }

    .results-workspace .metric-card {
        display: block;
        padding: 1rem 0;
        text-align: left;
    }

    .results-workspace .metric-card + .metric-card {
        border-left: 0;
        border-top: 1px solid var(--color-border-soft);
    }

    .results-workspace .metric-card::before {
        left: 0;
        right: 0;
    }

    .results-workspace .metric-value {
        font-size: 1.35rem;
        text-align: left;
        white-space: normal;
    }

    .results-workspace .metric-subtitle {
        display: block;
    }

    .result-decision-panel,
    .result-analysis-layout {
        grid-template-columns: 1fr;
    }

    .result-best-value {
        font-size: 1.6rem;
    }

    .result-sequence-value {
        font-size: 1.2rem;
    }

    .results-workspace .result-explanation {
        margin: 0;
        padding-top: 1.1rem;
    }

    .results-workspace .result-explanation-grid {
        grid-template-columns: 1fr;
    }

    .results-workspace .result-explanation-card,
    .results-workspace .result-explanation-card:nth-child(even) {
        padding: 0.95rem 0;
        border-left: 0;
    }

    .results-workspace .result-explanation-card + .result-explanation-card {
        border-top: 1px solid var(--color-border-soft);
    }
}

@media (max-width: 480px) {
    .page-container {
        padding: 1rem;
    }

    .workspace-section {
        width: 100%;
        max-width: 100%;
        min-width: 0;
    }

    .section-heading h2 {
        font-size: 1rem;
    }

    .calculator-mode-panel {
        padding: 0.875rem;
    }

    .guided-cta {
        width: 100%;
        justify-content: center;
    }
}

/* ============================================
   UX/UI redesign 2026
   ============================================ */
:root {
    --color-bg-page: #f4f8f6;
    --color-bg-card: #ffffff;
    --color-bg-header: #ffffff;
    --color-bg-input: #ffffff;
    --color-text-primary: #172033;
    --color-text-secondary: #52645f;
    --color-text-muted: #6f7f7a;
    --color-border: #bfd2ca;
    --color-border-soft: #d7e3de;
    --color-border-focus: #0f766e;
    --color-blue-soft: #edf7f3;
    --color-blue-line: #d7e3de;
    --color-accent-primary: #0f766e;
    --color-metric-fp: #2563eb;
    --color-metric-pac: #d97706;
    --color-metric-mix: #0f766e;
    --control-width: 15.5rem;
    --shadow-sm: 0 1px 2px rgb(23 32 51 / 0.04);
    --shadow-md: 0 8px 20px rgb(23 32 51 / 0.08), 0 1px 2px rgb(23 32 51 / 0.05);
}

body {
    background:
        linear-gradient(180deg, #e8f3ee 0, var(--color-bg-page) 260px),
        var(--color-bg-page);
}

header {
    position: static;
    padding: 1rem 1.5rem;
    border-top: 0;
    border-bottom: 1px solid var(--color-border-soft);
    box-shadow: none;
}

.header-content {
    max-width: 1180px;
}

/* Il padding laterale sta fuori dai 1180px: il contenuto interno
   resta largo quanto .header-content e i bordi sono in asse. */
.page-container {
    max-width: calc(1180px + 3rem);
}

.logo h1 {
    font-size: 1rem;
    font-weight: 850;
}

.subheader {
    margin-top: 0.15rem;
    font-size: 0.78rem;
}

.tabs {
    gap: 1.25rem;
}

.tab {
    font-size: 0.82rem;
    font-weight: 850;
}

#calculator-content.active {
    gap: 1.45rem;
}

/* Sfondo pulito: nessuna grafica dietro il testo, solo un velo di
   verde sul bordo destro dove non ci sono scritte. */
.intro-section {
    position: relative;
    overflow: hidden;
    grid-template-columns: minmax(0, 1fr) minmax(13rem, auto);
    align-items: center;
    padding: 1.25rem 1.5rem;
    background:
        linear-gradient(120deg, #ffffff 0%, #f8fbf8 46%, #e5f2ec 100%),
        #ffffff;
    border-color: var(--color-border-soft);
    border-radius: 10px;
}

.intro-copy,
.intro-actions {
    position: relative;
    z-index: 1;
}

.intro-copy h2 {
    max-width: 46rem;
    font-size: 1.35rem;
    letter-spacing: 0;
}

.section-kicker {
    color: var(--color-accent-primary);
    font-size: 0.72rem;
    font-weight: 900;
    letter-spacing: 0.08em;
}

/* Solo il bottone, grande e senza card contenitore. */
.intro-actions {
    display: grid;
    justify-items: stretch;
    width: min(100%, 17rem);
    padding: 0;
    background: transparent;
    border: 0;
}

.intro-actions .intro-primary {
    min-height: 3.4rem;
    padding-inline: 1.6rem;
    font-size: 1.02rem;
    border-radius: 8px;
    box-shadow: none;
}

.intro-actions .intro-primary:hover {
    box-shadow: none;
}

.intro-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.25rem;
}

.workspace-section {
    border-color: var(--color-border-soft);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.config-workspace {
    background: var(--color-bg-card);
}

.section-heading {
    align-items: flex-end;
    padding: 0 0 0.65rem;
    background: transparent;
    border: 0;
}

.workspace-section > .section-heading {
    margin-bottom: 0.75rem;
}

.config-workspace > .section-heading {
    margin: 0;
    padding: 0 0 0.75rem;
}

.section-heading h2 {
    font-size: 1.2rem;
    font-weight: 850;
}

.section-heading p:not(.section-kicker) {
    max-width: 42rem;
    margin-top: 0.25rem;
    color: var(--color-text-secondary);
    text-align: left;
}

.config-workspace {
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
}

.config-workspace #input-form {
    padding: 1.1rem;
    background: #f8fbf9;
    border: 1px solid var(--color-border-soft);
    border-radius: 8px;
}

.params-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    background: transparent;
    border: 0;
}

.param-card {
    display: flex;
    flex-direction: column;
    background: #ffffff;
    border: 1px solid var(--color-border-soft);
    border-radius: 8px;
    overflow: hidden;
}

.param-card .card-header {
    gap: 0.55rem;
    padding: 0.95rem 1rem 0;
    background: transparent;
    border: 0;
    font-size: 0.98rem;
    font-weight: 850;
}

.param-card .card-header i {
    display: none;
}

.param-card .card-body {
    padding: 1rem;
}

.form-row,
.local-tax-panel .form-row,
.card-more-options .form-row,
.return-gross-fields .form-row,
.guided-step .form-row {
    grid-template-columns: repeat(2, minmax(0, var(--control-width)));
    gap: 0.9rem;
    justify-content: start;
}

.form-group,
.variation-grid {
    width: min(100%, var(--control-width));
}

.form-group.full-width {
    grid-column: auto;
}

.form-group label {
    min-height: 1.1rem;
    color: var(--color-text-secondary);
    font-size: 0.72rem;
    font-weight: 900;
    letter-spacing: 0.03em;
}

.form-control,
.computed-output {
    min-height: 2.75rem;
    border-color: var(--color-border);
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 700;
}

.scenario-variable-row {
    grid-template-columns: minmax(0, var(--control-width)) minmax(0, var(--control-width));
    gap: 0.9rem;
}

.variation-grid {
    margin-top: 0;
    background: #f8fbf9;
    border-color: var(--color-border-soft);
    border-radius: 7px;
}

.variation-header {
    min-height: 2.75rem;
    padding: 0 0.75rem;
}

.variation-body {
    padding: 0 0.75rem 0.75rem;
}

.variation-grid .form-row {
    grid-template-columns: repeat(2, minmax(0, 6.75rem));
}

.variation-grid .form-group {
    width: 100%;
}

.variation-toggle,
.local-tax-mode-toggle {
    background: #edf7f3;
    border-color: var(--color-border);
}

.variation-toggle label:has(input:checked),
.local-tax-mode-button.active {
    background: var(--color-accent-primary);
}

.local-tax-panel,
.card-more-options,
.assumptions-details {
    background: transparent;
    border: 0;
    padding: 0;
}

.local-tax-panel-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0.75rem;
}

.local-tax-subtitle,
.assumptions-details,
.param-card .info-box:not(.investment-mode-note):not(.local-tax-info) {
    display: none;
}

.visually-hidden-control {
    display: none !important;
}

.card-more-options {
    margin-top: 1rem;
}

.card-more-options summary {
    display: none;
}

.advanced-tax-options {
    display: block;
}

.control-section-heading {
    margin-top: 1rem;
    padding-top: 0.85rem;
    border-top: 1px solid var(--color-border-soft);
}

.guided-live-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.guided-live-summary div {
    background: #f8fbf9;
    border-color: var(--color-border-soft);
}

.input-warnings {
    grid-column: 1 / -1;
}

.results-workspace {
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
}

.results-body {
    display: grid;
    gap: 1.1rem;
    padding: 1.1rem;
    background: #ffffff;
    border: 1px solid var(--color-border-soft);
    border-radius: 8px;
}

.result-decision-panel {
    gap: 1.4rem;
    margin: 0;
    padding: 1.35rem;
    background: #ffffff;
    border: 1px solid var(--color-border-soft);
    border-radius: 8px;
}

.result-decision-main,
.result-decision-side {
    padding: 0;
    background: transparent;
}

.result-decision-main h3 {
    font-size: 0.95rem;
}

.result-best-value {
    margin-top: 0.25rem;
    font-family: var(--font-sans);
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 900;
}

.result-sequence-value {
    font-family: var(--font-sans);
    font-size: 1.45rem;
}

.decision-subsection {
    display: grid;
    gap: 0.85rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border-soft);
}

.result-section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
}

.result-section-head h3 {
    margin: 0;
    font-size: 1.05rem;
}

.result-section-head p,
.result-section-head span {
    color: var(--color-text-secondary);
    font-size: 0.78rem;
    font-weight: 800;
}

.results-workspace .metrics-dashboard {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.85rem;
    padding: 0;
    border: 0;
}

.results-workspace .metric-card,
.results-workspace .metric-card.best {
    padding: 1rem;
    background: #ffffff;
    border: 1px solid var(--color-border-soft);
    border-radius: 8px;
}

.results-workspace .metric-card + .metric-card {
    border-left: 1px solid var(--color-border-soft);
}

.results-workspace .metric-card::before {
    display: none;
}

.results-workspace .result-explanation {
    padding: 1rem 0 0;
}

.result-analysis-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.85rem;
}

.results-workspace .result-explanation-grid-primary,
.results-workspace .result-explanation-grid-secondary {
    grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
    gap: 0.85rem;
    border: 0;
}

.result-analysis-group-secondary {
    display: none;
}

.results-workspace .result-explanation-card {
    padding: 1rem;
    background: #ffffff;
    border: 1px solid var(--color-border-soft);
    border-radius: 8px;
}

.results-workspace .result-explanation-card + .result-explanation-card {
    border-top: 1px solid var(--color-border-soft);
}

.results-section,
.chart-section,
.annual-explorer-section {
    margin-top: 0;
    padding: 1.1rem;
    background: #ffffff;
    border: 1px solid var(--color-border-soft);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.annual-explorer-body {
    display: grid;
    gap: 1rem;
}

.results-title,
.chart-title {
    margin: 0 0 0.85rem;
    cursor: pointer;
    font-size: 1.05rem;
    font-weight: 850;
}

.table-view-tabs {
    display: none;
}

.table-container {
    overflow: hidden;
    border-color: var(--color-border-soft);
    border-radius: 8px;
}

th {
    background: #f8fbf9;
    color: var(--color-text-primary);
}

td {
    border-bottom-color: var(--color-border-soft);
}

/* Tabella annuale allineata al mockup: sans, testo a sinistra, header grigio chiaro. */
.results-section table {
    font-family: inherit;
    font-size: 0.8rem;
}

.results-section th,
.results-section td {
    padding: 0.65rem 0.75rem;
    text-align: left;
}

.results-section th {
    font-size: 0.72rem;
    font-weight: 900;
    letter-spacing: 0.02em;
    white-space: normal;
}

.results-section td {
    color: var(--color-text-secondary);
}

.results-section td:first-child {
    color: var(--color-text-primary);
    font-weight: 700;
}

.results-section tbody tr {
    cursor: pointer;
}

.results-section tr:hover td,
.results-section tr:hover td:first-child {
    background: #f0faf5;
}

/* Riga dell'anno selezionato nell'esploratore annuale. */
.results-section tr.active td,
.results-section tr.active td:first-child {
    background: #f0faf5;
    color: var(--color-text-primary);
    font-weight: 750;
}

.annual-explorer-section {
    display: grid;
    gap: 1rem;
}

.year-select {
    display: grid;
    gap: 0.35rem;
    width: min(100%, 12rem);
}

.annual-explorer {
    display: grid;
    gap: 0.9rem;
}

.year-answer,
.annual-inputs {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.75rem;
}

.year-answer-card,
.annual-input,
.calc-step {
    min-width: 0;
    padding: 0.9rem;
    background: #ffffff;
    border: 1px solid var(--color-border-soft);
    border-radius: 8px;
}

.year-answer-card.main {
    background: #f0faf5;
    border-color: #abd7c1;
}

.year-answer-card span,
.annual-input span,
.step-meta,
.step-row span {
    display: block;
    color: var(--color-text-secondary);
    font-size: 0.67rem;
    font-weight: 900;
    letter-spacing: 0.04em;
}

.year-answer-card strong,
.annual-input strong {
    display: block;
    margin-top: 0.3rem;
    color: var(--color-text-primary);
    font-size: 1.2rem;
    font-weight: 900;
    line-height: 1.15;
}

.year-answer-card p,
.annual-input p,
.calc-step p {
    margin-top: 0.35rem;
    color: var(--color-text-secondary);
    font-size: 0.78rem;
    line-height: 1.35;
}

.annual-input {
    background: #f8fbf9;
}

.calc-flow {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.85rem;
}

.calc-step {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0.75rem;
}

.step-title {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.75rem;
    align-items: start;
}

.step-title h4 {
    margin: 0.15rem 0 0;
    font-size: 0.95rem;
}

.step-title strong {
    white-space: nowrap;
}

.step-formula {
    margin-top: 0.65rem;
    padding: 0.55rem 0.7rem;
    color: #245c51;
    background: #edf7f3;
    border: 1px solid var(--color-border-soft);
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    line-height: 1.35;
}

.step-rows {
    display: grid;
    gap: 0.45rem;
    margin-top: 0.65rem;
}

.step-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.75rem;
    align-items: baseline;
    padding-top: 0.55rem;
    border-top: 1px solid var(--color-border-soft);
}

.step-row strong {
    white-space: nowrap;
}

.chart-container {
    height: 360px;
    padding: 1rem;
    background: #ffffff;
    border-color: var(--color-border-soft);
}

@media (max-width: 980px) {
    .params-grid,
    .result-decision-panel,
    .results-workspace .result-explanation-grid-primary,
    .year-answer,
    .annual-inputs,
    .calc-flow {
        grid-template-columns: 1fr;
    }

    .scenario-variable-row,
    .form-row,
    .local-tax-panel .form-row,
    .card-more-options .form-row,
    .return-gross-fields .form-row,
    .guided-step .form-row {
        grid-template-columns: 1fr;
    }

    .form-group,
    .variation-grid,
    .scenario-variable-row .variation-grid {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .intro-section {
        grid-template-columns: 1fr;
    }

    .intro-section::before,
    .intro-section::after {
        display: none;
    }

    .intro-actions {
        width: 100%;
    }

    .section-heading,
    .result-section-head,
    .step-title,
    .step-row {
        display: grid;
        grid-template-columns: 1fr;
        align-items: start;
    }

    .config-workspace #input-form,
    .results-body,
    .results-section,
    .chart-section,
    .annual-explorer-section {
        padding: 0.85rem;
    }

    .calc-step {
        grid-template-columns: 1fr;
    }
}

/* Final layout corrections: keep the UX order and control plancia aligned. */
#calculator-content .intro-section { order: 1; }
#calculator-content .config-workspace { order: 2; }
#calculator-content .results-workspace { order: 3; }
#calculator-content .detail-workspace { order: 4; }
#calculator-content .annual-explorer-section { order: 5; }
#calculator-content .chart-section { order: 6; }

.config-workspace #input-form {
    padding: 1.1rem;
}

.params-grid {
    align-items: start;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.param-card {
    min-width: 0;
}

.param-card .card-body {
    display: grid;
    gap: 1rem;
}

.control-subgroups {
    display: grid;
    gap: 0.85rem;
}

.control-subgroup {
    min-width: 0;
    padding: 0.85rem;
    background: #ffffff;
    border: 1px solid var(--color-border-soft);
    border-radius: 7px;
}

.control-subgroup-title {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.7rem;
}

.control-subgroup-title strong {
    color: var(--color-text-primary);
    font-size: 0.86rem;
    font-weight: 850;
    line-height: 1.2;
}

.control-subgroup-title span {
    color: var(--color-text-secondary);
    font-size: 0.68rem;
    font-weight: 850;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.control-subgroup > .control-section-heading:first-child,
.control-subgroup > .control-section-heading:first-child + .form-row {
    margin-top: 0;
}

.control-subgroup > .control-section-heading:first-child {
    display: none;
}

.control-subgroup > .form-row + .form-row,
.control-subgroup > .scenario-variable + .form-row,
.control-subgroup > .form-row + .scenario-variable,
.control-subgroup > .guided-live-summary,
.control-subgroup > .info-box,
.control-subgroup .return-gross-fields,
.control-subgroup .local-tax-info {
    margin-top: 0.75rem;
}

.advanced-tax-options[open] {
    display: grid;
    gap: 0.85rem;
}

.control-subgroup .local-tax-title {
    display: none;
}

.param-card .form-row,
.param-card .local-tax-panel .form-row,
.param-card .card-more-options .form-row,
.param-card .return-gross-fields .form-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.85rem;
    margin-top: 0;
}

.param-card .form-group {
    width: 100%;
}

.param-card .guided-live-summary {
    margin-top: 0;
}

.param-card .control-section-heading {
    margin: 0;
}

.param-card .control-section-heading + .form-row,
.param-card .control-section-heading + .scenario-variable {
    margin-top: 0;
}

.scenario-variable {
    margin-top: 0;
}

.form-row + .form-row,
.scenario-variable + .form-row,
.scenario-variable + .scenario-variable,
.form-row + .scenario-variable {
    margin-top: 0;
}

.investment-mode-note {
    margin-top: 0;
}

@media (max-width: 980px) {
    .params-grid,
    .param-card .form-row,
    .param-card .local-tax-panel .form-row,
    .param-card .card-more-options .form-row,
    .param-card .return-gross-fields .form-row {
        grid-template-columns: 1fr;
    }
}

/* Control normalization pass: same rhythm for inputs, toggles and expandable controls. */
.param-card {
    --control-height: 3rem;
    --control-gap: 0.85rem;
}

.param-card .card-header {
    padding: 0.9rem 1rem;
    font-size: 1.05rem;
    line-height: 1.2;
}

.param-card .card-body {
    padding: 1rem;
}

.param-card .form-group {
    min-width: 0;
    margin-bottom: 0;
}

.param-card .form-group label,
.param-card .control-section-heading,
.param-card .local-tax-title {
    min-height: 1.05rem;
    margin: 0 0 0.4rem;
    color: var(--color-text-primary);
    font-size: 0.78rem;
    font-weight: 850;
    line-height: 1.15;
    letter-spacing: 0.01em;
}

.param-card .form-control,
.param-card .computed-output {
    min-height: var(--control-height);
    padding: 0.58rem 0.8rem;
    border-color: var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 750;
    line-height: 1.2;
}

.param-card select.form-control {
    padding-right: 2.4rem;
}

.param-card .form-control:disabled,
.param-card .computed-output[aria-disabled="true"] {
    background: #f7faf8;
    color: #7b8985;
    opacity: 1;
}

.param-card .control-section-heading {
    padding-top: 0.2rem;
    border-top: 1px solid var(--color-border-soft);
}

.param-card .control-section-heading:first-child {
    padding-top: 0;
    border-top: 0;
}



.param-card .option-field {
    display: grid;
    align-items: end;
    min-width: 0;
}

.param-card .toggle-label {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 0.65rem;
    min-height: var(--control-height);
    width: 100%;
    margin: 0;
    padding: 0.45rem 0.75rem;
    color: var(--color-text-primary);
    background: #f8fbf9;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 850;
    line-height: 1.15;
}

.param-card .toggle-label .toggle-switch {
    width: 2.45rem;
    height: 1.45rem;
}

.param-card .toggle-label .toggle-switch::after {
    width: 1.1rem;
    height: 1.1rem;
}

.param-card .toggle-label input[type="checkbox"]:checked + .toggle-switch::after {
    transform: translateX(1rem);
}

.param-card .local-tax-panel {
    display: grid;
    gap: var(--control-gap);
    margin-bottom: 0;
    padding: 0;
    background: transparent;
    border: 0;
}

.param-card .local-tax-panel-header {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: end;
    gap: var(--control-gap);
}

.param-card .local-tax-subtitle {
    margin: 0.2rem 0 0;
    color: var(--color-text-muted);
    font-size: 0.82rem;
    line-height: 1.25;
}

.param-card .local-tax-mode-toggle {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
    min-height: var(--control-height);
    padding: 0.25rem;
    background: #eef5f3;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.param-card .local-tax-mode-button {
    min-width: 0;
    min-height: 2.35rem;
    padding: 0.35rem 0.55rem;
    border-radius: calc(var(--radius-sm) - 2px);
    font-size: 0.9rem;
    font-weight: 850;
    line-height: 1.1;
}

.param-card .local-tax-mode-button.active {
    color: #ffffff;
    background: var(--color-accent-primary);
}

.param-card .local-tax-manual-fields[aria-hidden="true"],
.param-card .local-tax-auto-fields[aria-hidden="true"],
.param-card .info-box.local-tax-auto-fields[aria-hidden="true"] {
    display: none !important;
}

.param-card .local-tax-panel[data-local-tax-mode-current="manual"] .local-tax-auto-fields {
    display: none !important;
}

.param-card .local-tax-panel[data-local-tax-mode-current="auto"] .local-tax-manual-fields {
    display: none !important;
}

.param-card .local-tax-panel[data-local-tax-mode-current="auto"] .local-tax-auto-fields.form-row {
    display: grid;
}

.param-card .info-box.local-tax-info {
    margin-top: 0;
}

@media (max-width: 980px) {
    .param-card .local-tax-panel-header {
        grid-template-columns: 1fr;
    }
}

/* Rebuilt control panel: mockup-derived structure, isolated from legacy form rules. */
.config-workspace #input-form {
    padding: 0;
    background: transparent;
    border: 0;
}

/* Nessun box proprio: la card della sezione .config-workspace fa da contenitore. */
.control-shell {
    display: grid;
    gap: 1.125rem;
}

.control-shell .params-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    margin: 0;
    background: transparent;
    border: 0;
}

/* Stessa anatomia delle sezioni generali: card con padding e banda-titolo inset. */
.control-shell .param-card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    padding: 1.1rem;
    overflow: hidden;
    background: #ffffff;
    border: 1px solid var(--color-border-soft);
    border-radius: 8px;
    box-shadow: 0 1px 2px rgb(23 32 51 / 0.03);
}

/* Barra-titolo cliccabile, stessa anatomia delle altre sezioni apri/chiudi. */
.control-shell .card-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1rem;
    align-items: center;
    margin: 0 0 0.85rem;
    padding: 0.95rem 1rem 0.8rem;
    background: #fbfcf8;
    border: 0;
    border-bottom: 1px solid var(--color-border-soft);
    cursor: pointer;
    user-select: none;
}

.control-shell .param-card.collapsed .card-header {
    margin-bottom: 0;
}

.control-shell .card-header:hover h3 {
    color: var(--color-accent-primary);
}

.control-shell .param-card.collapsed .card-body {
    display: none;
}

.control-shell .param-card.collapsed .card-header {
    border-bottom: 0;
}

.control-shell .card-header h3 {
    margin: 0;
    color: var(--color-text-primary);
    font-size: 0.98rem;
    font-weight: 900;
    line-height: 1.2;
}

.control-shell .card-header p {
    margin: 0.25rem 0 0;
    color: var(--color-text-secondary);
    font-size: 0.78rem;
    line-height: 1.35;
}

.control-shell .card-header > span {
    color: var(--color-text-secondary);
    font-size: 0.68rem;
    font-weight: 900;
    letter-spacing: 0.07em;
    white-space: nowrap;
}

.control-shell .card-body {
    display: grid;
    gap: 0.85rem;
    padding: 0;
}

.control-shell .control-subgroup {
    min-width: 0;
    padding: 0.85rem;
    background: #ffffff;
    border: 1px solid var(--color-border-soft);
    border-radius: 7px;
}

.control-shell .control-subgroup-title {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.7rem;
}

.control-shell .control-subgroup-title strong {
    color: var(--color-text-primary);
    font-size: 0.85rem;
    font-weight: 900;
    line-height: 1.2;
}

.control-shell .control-subgroup-title span {
    color: var(--color-text-secondary);
    font-size: 0.68rem;
    font-weight: 900;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.control-shell .form-row,
.control-shell .return-gross-fields .form-row,
.control-shell .local-tax-panel .form-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
    margin: 0;
}

.control-shell .form-row + .form-row,
.control-shell .control-followup,
.control-shell .conditional-grid,
.control-shell .return-gross-fields,
.control-shell .mini-metrics,
.control-shell .local-tax-panel .form-row,
.control-shell .local-tax-info {
    margin-top: 0.75rem;
}

.control-shell .control-followup,
.control-shell .conditional-grid,
.control-shell .return-gross-fields {
    padding-top: 0.75rem;
    border-top: 1px solid var(--color-border-soft);
}

.control-shell .form-group {
    width: 100%;
    min-width: 0;
    margin: 0;
}

.control-shell .form-row[hidden],
.control-shell .form-group[hidden],
.control-shell .mini-metrics[hidden] {
    display: none;
}

.control-shell label,
.control-shell .control-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    min-height: 1.1rem;
    margin: 0 0 0.38rem;
    color: var(--color-text-primary);
    font-size: 0.7rem;
    font-weight: 900;
    letter-spacing: 0.04em;
    line-height: 1.15;
}

.control-shell .control-field {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    min-height: 2.75rem;
    overflow: hidden;
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: 6px;
}

.control-shell .form-control,
.control-shell .computed-output {
    width: 100%;
    min-height: 2.75rem;
    padding: 0 0.75rem;
    color: var(--color-text-primary);
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 800;
    line-height: 1.2;
}

.control-shell .control-field .form-control {
    /* Il wrapper .control-field aggiunge 2px di bordo: l'input interno li
       compensa così l'altezza totale resta 2.75rem come i segmented. */
    min-height: calc(2.75rem - 2px);
    border: 0;
    border-radius: 0;
}

.control-shell .unit {
    display: grid;
    place-items: center;
    min-width: 3rem;
    padding: 0 0.55rem;
    color: var(--color-text-secondary);
    background: #f8fbf9;
    border-left: 1px solid var(--color-border-soft);
    font-size: 0.68rem;
    font-weight: 900;
}

.control-shell select.form-control {
    padding-right: 2.2rem;
}

.control-shell .native-select {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

.control-shell .form-control:disabled,
.control-shell .metric-input:disabled {
    color: #7b8985;
    background: #f8fbf9;
    opacity: 1;
}



.control-shell .variation-toggle,
.control-shell .local-tax-mode-toggle,
.control-shell .segmented-control,
.control-shell .binary-toggle-state {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    min-height: 2.75rem;
    padding: 0.18rem;
    background: #eef5f3;
    border: 1px solid var(--color-border);
    border-radius: 6px;
}

.control-shell .variation-toggle label,
.control-shell .local-tax-mode-button,
.control-shell .segmented-control button,
.control-shell .binary-toggle-state span {
    display: grid;
    place-items: center;
    min-width: 0;
    min-height: 2rem;
    margin: 0;
    padding: 0 0.45rem;
    color: var(--color-text-secondary);
    background: transparent;
    border: 0;
    border-radius: 4px;
    font-size: 0.78rem;
    font-weight: 900;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    cursor: pointer;
}

.control-shell .segmented-control button {
    appearance: none;
}

.control-shell .variation-toggle {
    width: 100%;
    margin: 0;
    gap: 0;
}

.control-shell .variation-toggle input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.control-shell .variation-toggle label:has(input:checked),
.control-shell .local-tax-mode-button.active,
.control-shell .segmented-control button.active,
.control-shell .binary-toggle input[type="checkbox"]:not(:checked) ~ .binary-toggle-state span:first-child,
.control-shell .binary-toggle input[type="checkbox"]:checked ~ .binary-toggle-state span:last-child {
    color: #ffffff;
    background: var(--color-accent-primary);
}

.control-shell .increase-grid {
    padding-top: 0.75rem;
    border-top: 1px solid var(--color-border-soft);
}

.control-shell .mini-metrics {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.55rem;
}

.control-shell .mini-metric {
    min-width: 0;
    padding: 0.7rem;
    background: #f8fbf9;
    border: 1px solid var(--color-border-soft);
    border-radius: 6px;
}

.control-shell .mini-metric.output {
    background: #f2faf6;
    border-color: #cfe0d9;
}

.control-shell .mini-metric span {
    display: block;
    color: var(--color-text-secondary);
    font-size: 0.64rem;
    font-weight: 900;
    letter-spacing: 0.04em;
    line-height: 1.2;
}

.control-shell .mini-metric strong {
    display: block;
    margin-top: 0.28rem;
    color: var(--color-text-primary);
    font-size: 1rem;
    font-weight: 900;
    line-height: 1.15;
}

.control-shell .mini-metric p {
    margin: 0.3rem 0 0;
    color: var(--color-text-secondary);
    font-size: 0.72rem;
    line-height: 1.3;
}

.control-shell .metric-input {
    width: 3.5rem;
    padding: 0;
    color: inherit;
    background: transparent;
    border: 0;
    font: inherit;
    text-align: left;
}

.control-shell .toggle-label,
.control-shell .binary-toggle {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    align-items: center;
    gap: 0.38rem;
    min-height: 2.75rem;
    width: 100%;
    margin: 0;
    padding: 0;
    color: var(--color-text-primary);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0;
}

.control-shell .binary-toggle > input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

/* Stessa metrica e stesso inchiostro delle label normali (.param-card .form-group label). */
.control-shell .binary-toggle > .help-trigger {
    display: inline-flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0.35em;
    min-height: 1.05rem;
    color: var(--color-text-primary);
    font-size: 0.78rem;
    font-weight: 850;
    letter-spacing: 0.01em;
    line-height: 1.15;
}

.control-shell .local-tax-panel {
    display: grid;
    gap: 0.75rem;
    padding: 0;
    background: transparent;
    border: 0;
}

/* Stessa larghezza di una colonna della griglia controlli (metà riga meno il gap). */
.control-shell .local-tax-mode-toggle {
    width: calc(50% - 0.375rem);
    min-width: min(100%, 14rem);
}

.control-shell .local-tax-manual-fields[aria-hidden="true"],
.control-shell .local-tax-auto-fields[aria-hidden="true"] {
    display: none !important;
}

.control-shell .local-tax-panel[data-local-tax-mode-current="manual"] .local-tax-auto-fields {
    display: none !important;
}

.control-shell .local-tax-panel[data-local-tax-mode-current="auto"] .local-tax-manual-fields {
    display: none !important;
}

.control-shell > .input-warnings {
    display: none;
    grid-template-columns: minmax(0, 1fr);
    gap: 0.55rem;
    margin: 0;
    padding: 0;
    background: transparent;
    border: 0;
}

.control-shell > .input-warnings.is-visible {
    display: grid;
}

.control-shell > .input-warnings .input-warning {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.5rem;
    align-items: start;
    margin: 0;
    padding: 0.6rem 0.9rem;
    color: #7c3f00;
    background: #fff7ed;
    border: 1px solid #fed7aa;
    border-radius: 8px;
    font-size: 0.8rem;
    line-height: 1.4;
}

.control-shell > .input-warnings .input-warning i {
    color: #b45309;
}

.control-shell > .input-warnings .visually-hidden-control {
    display: none !important;
}

@media (max-width: 980px) {
    .control-shell .params-grid,
    .control-shell .form-row,
    .control-shell .return-gross-fields .form-row,
    .control-shell .local-tax-panel .form-row,
    .control-shell .mini-metrics {
        grid-template-columns: 1fr;
    }
}

/* =========================================================
   Compilazione guidata: parità estetica col pannello di controllo.
   Layer finale — tutte le regole sono scope .guided-dialog e si
   appoggiano ai componenti .control-shell (la .guided-body porta
   la classe control-shell nel markup).
   ========================================================= */
.guided-modal .guided-dialog {
    border-color: var(--color-border-soft);
}

.guided-dialog .guided-header {
    background: #fbfcf8;
    border-bottom: 1px solid var(--color-border-soft);
}

.guided-dialog .guided-eyebrow {
    color: var(--color-accent-primary);
    font-size: 0.68rem;
    font-weight: 900;
    letter-spacing: 0.07em;
}

.guided-dialog .guided-progress {
    background: #e2ede8;
}

.guided-dialog .guided-progress span {
    background: var(--color-accent-primary);
}

.guided-dialog .guided-footer {
    background: #f8fbf9;
    border-top: 1px solid var(--color-border-soft);
}

/* Il corpo riprende lo sfondo della plancia; ogni step è una card. */
.guided-dialog .guided-body.control-shell {
    display: block;
    padding: 1.15rem 1.25rem 1.25rem;
    background: #f8fbf9;
    border: 0;
    border-radius: 0;
}

.guided-dialog .guided-step {
    display: none;
}

/* Contenuto diretto nel dialog: nessuna card intermedia. */
.guided-dialog .guided-step.active {
    display: grid;
    gap: 0.85rem;
    align-content: start;
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
}

.guided-dialog .guided-step-head h3 {
    margin: 0;
    color: var(--color-text-primary);
    font-size: 0.98rem;
    font-weight: 900;
    line-height: 1.2;
}

.guided-dialog .guided-step-head p {
    max-width: 70ch;
    margin: 0.35rem 0 0;
    color: var(--color-text-secondary);
    font-size: 0.82rem;
    line-height: 1.45;
}

/* Le righe si appoggiano al gap dello step: via i margini legacy. */
.guided-dialog .guided-step .form-row,
.guided-dialog .guided-step .mini-metrics {
    margin: 0;
}

.guided-dialog .guided-step .form-row[hidden],
.guided-dialog #guided-minimum-wage-fields[hidden] {
    display: none !important;
}

.guided-dialog #guided-minimum-wage-fields {
    display: grid;
    gap: 0.85rem;
    padding: 0.85rem;
    background: #fbfdfb;
    border: 1px solid var(--color-border-soft);
    border-radius: 6px;
}

/* Note informative: stessa palette dei mini-metric output della plancia. */
.guided-dialog .guided-note {
    display: grid;
    gap: 0.6rem;
    margin: 0;
    padding: 0;
    color: var(--color-text-secondary);
    background: transparent;
    border: 0;
    font-size: 0.78rem;
    line-height: 1.45;
}

/* Ogni controllo spiegato ha il suo box. */
.guided-dialog .guided-note .help-entry {
    padding: 0.7rem 0.85rem;
    background: #f2faf6;
    border: 1px solid #cfe0d9;
    border-radius: 6px;
}

.guided-dialog .guided-note strong {
    color: var(--color-text-primary);
}

/* Disclosure aumenti: bordo, radius 6px e header alto 2.75rem come i controlli. */
.guided-dialog .variation-grid {
    width: 100%;
    margin: 0;
    padding: 0;
    background: #f8fbf9;
    border: 1px solid var(--color-border);
    border-radius: 6px;
}

.guided-dialog .variation-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    min-height: 2.75rem;
    margin: 0;
    padding: 0 0.75rem;
    cursor: pointer;
    list-style: none;
}

.guided-dialog .variation-header::-webkit-details-marker {
    display: none;
}

.guided-dialog .variation-header > span {
    color: var(--color-text-secondary);
    font-size: 0.7rem;
    font-weight: 900;
    letter-spacing: 0.04em;
}

.guided-dialog .variation-grid[open] > .variation-header {
    border-bottom: 1px solid var(--color-border-soft);
}

.guided-dialog .variation-grid[open] > .variation-header > span,
.guided-dialog .variation-grid[open] > .variation-header .variation-chevron {
    color: var(--color-accent-primary);
}

.guided-dialog .variation-body {
    display: grid;
    gap: 0.75rem;
    padding: 0.75rem;
}

/* Toggle addizionali: stessa geometria del pannello. */
.guided-dialog .guided-tax-toggle {
    width: min(100%, 22rem);
    margin: 0;
}

.guided-dialog .guided-tax-auto-fields[aria-hidden="true"],
.guided-dialog .guided-tax-manual-fields[aria-hidden="true"] {
    display: none !important;
}

/* Testo dei binary toggle: stessa metrica delle label della plancia. */
.guided-dialog .binary-toggle > .binary-toggle-text {
    display: flex;
    align-items: center;
    min-height: 1.05rem;
    color: var(--color-text-primary);
    font-size: 0.78rem;
    font-weight: 850;
    letter-spacing: 0.01em;
    line-height: 1.15;
}

.guided-dialog .option-field {
    display: grid;
    align-items: end;
    min-width: 0;
}

/* ============================================
   Spiegazioni strutturate (help modal + note guidata)
   Fonte unica: helpContent in scripts.js.
   ============================================ */

/* Icona informativa sui titoli cliccabili: dimensione leggibile e centrata
   otticamente rispetto al testo della label. */
/* Icona informativa in puro CSS: esiste dal primo paint (niente flash). */
.help-trigger::after {
    content: 'i';
    display: inline-grid;
    place-items: center;
    flex: 0 0 auto;
    width: 1.15em;
    height: 1.15em;
    margin-top: -0.12em;
    background: rgb(15 118 110 / 0.55);
    border-radius: 999px;
    color: #ffffff;
    font-size: 0.78em;
    font-style: normal;
    font-weight: 900;
    line-height: 1;
    transition: var(--transition);
}

.help-trigger:hover::after {
    background: var(--color-accent-primary);
}

/* Sezioni etichettate: Dove si trova / Come viene usato / Cosa comporta */
.help-section {
    display: grid;
    gap: 0.2rem;
}

.help-section + .help-section {
    margin-top: 0.65rem;
}

.help-section-label {
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    color: var(--color-accent-primary, #0f766e);
    opacity: 0.85;
}

.help-section-text {
    margin: 0;
    font-size: 0.86rem;
    line-height: 1.5;
    color: var(--color-text-secondary);
}

.help-modal-text .help-section + .help-section {
    margin-top: 0.85rem;
}

/* Box della spiegazione più ampio e coerente con le note della guidata:
   stesso fondo verde tenue, stesso bordo e stessa palette di testo. */
.help-modal-content {
    width: min(560px, calc(100vw - 2rem));
    height: auto;
    max-height: min(75vh, 640px);
}

.help-modal-header {
    background: #f8fbf9;
}

/* Contenuto diretto nella modale: nessun box interno. */
.help-modal-text {
    margin: 0;
    padding: 1rem 1.25rem 1.25rem;
    background: transparent;
    border: 0;
    color: var(--color-text-secondary);
}

.help-modal-text .help-section-text {
    color: inherit;
}

/* Voci multiple dentro le note della guidata */
.guided-note .help-entry {
    display: grid;
    gap: 0.45rem;
}


.guided-note .help-entry-title {
    font-size: 0.9rem;
    font-weight: 800;
    color: var(--color-text-primary);
}

.guided-note .help-section-text {
    color: inherit;
}

/* Pannello di controllo: stessa anatomia di .results-section
   (card con padding 1.1rem, barra-titolo inset con margine sotto). */
.config-workspace {
    padding: 1.1rem;
    background: #ffffff;
    border: 1px solid var(--color-border-soft);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.config-workspace #input-form {
    border: 0;
    border-radius: 0;
}

/* ============================================
   Guida informativa: sezioni apri/chiudi in card
   (stesso stile della pagina calcoli) + indice.
   ============================================ */
.docs-section {
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
}

.docs-collapsible {
    padding: 1.1rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-soft);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    margin: 0 0 1rem;
    overflow: hidden;
}

.docs-section h2.docs-collapsible-title {
    margin: 0 0 0.85rem;
    padding: 0.95rem 1rem 0.8rem;
    background: #fbfcf8;
    border-bottom: 1px solid var(--color-border-soft);
    color: var(--color-text-primary);
    font-size: 0.95rem;
    font-weight: 750;
    line-height: 1.2;
    cursor: pointer;
    user-select: none;
}

.docs-section h2.docs-collapsible-title:hover {
    color: var(--color-accent-primary);
}

.docs-collapsible.collapsed .docs-collapsible-title {
    margin-bottom: 0;
    border-bottom: 0;
}

.docs-collapsible.collapsed .docs-collapsible-content {
    display: none;
}

.docs-collapsible-content {
    padding: 0;
}

.docs-collapsible-content > h3:first-child {
    margin-top: 1rem;
}

/* Indice della guida: card con voci navigabili */
.docs-index {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-content: center;
    max-width: none;
    margin: 0 0 1rem;
    padding: 1.25rem 1.5rem;
    min-height: 8rem;
    background:
        linear-gradient(120deg, #ffffff 0%, #f8fbf8 46%, #e5f2ec 100%),
        #ffffff;
    border: 1px solid var(--color-border-soft);
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
}

.docs-index strong {
    padding: 0;
    color: var(--color-accent-primary);
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.06em;
}

.docs-index strong {
    flex: 1 0 100%;
}

.docs-index a {
    flex: 1 1 150px;
    padding: 0.55rem 0.75rem;
    background: var(--color-accent-primary);
    border: 1px solid var(--color-accent-primary);
    border-radius: 6px;
    color: #ffffff;
    font-size: 0.82rem;
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
}

.docs-index a:hover {
    color: #ffffff;
    border-color: #0b5d57;
    background: #0b5d57;
}

/* Anti-flash tab: prima che il JS ripristini il tab salvato, un attributo
   impostato inline in <head> forza subito la vista corretta. */
html[data-active-tab="documentation"] #calculator-content.active {
    display: none;
}

html[data-active-tab="documentation"] #documentation-content {
    display: block;
}

html[data-active-tab="documentation"] .tab[data-tab="calculator"] {
    color: var(--color-text-secondary);
    border-bottom-color: transparent;
}

html[data-active-tab="documentation"] .tab[data-tab="documentation"] {
    color: var(--color-accent-primary);
    border-bottom-color: var(--color-accent-primary);
}

/* Card strategia selezionabili: pilotano tabella ed esploratore. */
[data-strategy] {
    cursor: pointer;
    transition: outline-color var(--transition), box-shadow var(--transition), background-color var(--transition);
}

[data-strategy]:hover {
    outline: 1px solid rgb(15 118 110 / 0.45);
    outline-offset: -1px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgb(15 118 110 / 0.12);
}

.results-workspace [data-strategy].strategy-active,
[data-strategy].strategy-active {
    outline: 2px solid var(--color-accent-primary);
    outline-offset: -2px;
    border-radius: 8px;
    background: linear-gradient(135deg, #e7f6f1 0%, #f9fcfa 70%);
    box-shadow: 0 4px 16px rgb(15 118 110 / 0.18);
}

/* Guidata: i blocchi condizionali (es. rendimento lordo) spaziano le righe
   interne con lo stesso gap dello step. */
.guided-dialog .conditional-grid {
    display: grid;
    gap: 0.85rem;
}

.guided-dialog .conditional-grid[hidden] {
    display: none;
}

/* Guidata: pannelli e box informativi su fondo bianco. */
.guided-dialog .guided-note .help-entry,
.guided-dialog .mini-metric,
.guided-dialog .mini-metric.output {
    background: #ffffff;
    border-color: var(--color-border-soft);
}

/* Grafico: come la tabella, larghezza minima con scroll orizzontale. */
.chart-content {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.chart-container {
    min-width: 640px;
}

/* Primo paint posticipato a calcoli pronti (attributo tolto da app.js,
   fallback a 1,5s nell'inline script del head). */
html[data-booting] body {
    opacity: 0;
}

body {
    transition: opacity 0.12s ease;
}

/* Esploratore: anno a sinistra, strategia a destra come tre bottoni. */
.explorer-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    justify-content: space-between;
}

.explorer-strategy-select {
    display: flex;
    gap: 0.5rem;
}

.explorer-strategy-select button {
    appearance: none;
    min-height: 2.75rem;
    padding: 0 1.1rem;
    color: var(--color-text-primary);
    background: #f8fbf9;
    border: 1px solid var(--color-border-soft);
    border-radius: 6px;
    font-size: 0.82rem;
    font-weight: 700;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    transition: var(--transition);
}

.explorer-strategy-select button:hover {
    border-color: var(--color-accent-primary);
    color: var(--color-accent-primary);
}

.explorer-strategy-select button.active {
    color: #ffffff;
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
}

/* Esploratore: card di pari altezza; bianche tranne il risultato (verde). */
.year-answer-card,
.annual-input {
    min-height: 6.75rem;
    background: #ffffff;
    border: 1px solid var(--color-border-soft);
}

.year-answer-card.main {
    background: #f0faf5;
    border-color: #abd7c1;
}

/* Logo cliccabile: simbolo (favicon) + nome, rimanda alla home. */
a.logo {
    text-decoration: none;
    color: inherit;
    gap: 0.65rem;
}

.logo-mark {
    display: block;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    flex: 0 0 auto;
}

a.logo:hover h1 {
    color: var(--color-accent-primary);
}

/* Hero: bottone ancorato in basso. */
.intro-section .intro-actions {
    align-self: end;
}

/* Indice: titolo in alto (grande, nero), bottoni ancorati in basso. */
.docs-index {
    align-content: space-between;
}

.docs-index strong {
    align-self: start;
    color: var(--color-text-primary);
    font-size: 1.05rem;
    font-weight: 750;
    letter-spacing: 0;
}

/* Header: tabs. */
.header-side {
    display: flex;
    align-items: center;
    gap: 1rem;
    min-width: 0;
}