/* ==========================================================================
   taxe.css - Calculator Fiscal România 2026 | tutorialeu.ro
   Stiluri pure CSS - Fără framework-uri externe
   ========================================================================== */

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #eff6ff;
    --primary-border: #bfdbfe;
    --primary-ring: rgba(37, 99, 235, 0.25);

    --slate-900: #0f172a;
    --slate-800: #1e293b;
    --slate-700: #334155;
    --slate-600: #475569;
    --slate-500: #64748b;
    --slate-400: #94a3b8;
    --slate-300: #cbd5e1;
    --slate-200: #e2e8f0;
    --slate-100: #f1f5f9;
    --slate-50: #f8fafc;

    --green-800: #166534;
    --green-700: #15803d;
    --green-600: #16a34a;
    --green-500: #22c55e;
    --green-100: #dcfce7;
    --green-50: #f0fdf4;

    --amber-700: #b45309;
    --amber-600: #d97706;
    --amber-100: #fef3c7;
    --amber-50: #fffbeb;

    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
    --card-shadow-hover: 0 12px 20px -4px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --card-winner-shadow: 0 16px 32px -6px rgba(22, 163, 74, 0.18), 0 6px 12px -3px rgba(22, 163, 74, 0.1);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --transition-base: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Keep the fiscal calculator in step with the theme preference used by the rest
   of TutorialEu. The original palette remains the light default. */
body.dark-theme {
    color-scheme: dark;
    --primary-light: #172554;
    --primary-border: #1d4ed8;
    --slate-900: #f8fafc;
    --slate-800: #e2e8f0;
    --slate-700: #cbd5e1;
    --slate-600: #aebdcb;
    --slate-500: #94a3b8;
    --slate-400: #8293a8;
    --slate-300: #64748b;
    --slate-200: #334155;
    --slate-100: #1e293b;
    --slate-50: #0f172a;
    --green-800: #bbf7d0;
    --green-700: #86efac;
    --green-100: #14532d;
    --green-50: #052e16;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-family: var(--font-sans);
    line-height: 1.5;
    color: var(--slate-700);
    background-color: var(--slate-50);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

html.dark-theme { color-scheme: dark; background-color: #0f172a; }
body.dark-theme { background-color: var(--slate-50); }

/* ── Top Header Navigation ────────────────────────────────────────── */
.site-header {
    background-color: #ffffff;
    border-bottom: 1px solid var(--slate-200);
    padding: 0.85rem 1.5rem;
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-container {
    max-width: 1240px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.brand {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--slate-900);
    text-decoration: none;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.brand span {
    color: var(--primary);
}

.brand-badge {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.2rem 0.55rem;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 9999px;
    border: 1px solid var(--primary-border);
}

.site-header nav {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.site-header nav a {
    color: var(--slate-600);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 600;
    transition: var(--transition-base);
}

.site-header nav a:hover {
    color: var(--primary);
}

.theme-toggle {
    border: 1px solid var(--slate-200);
    border-radius: 999px;
    background: var(--slate-50);
    color: var(--slate-700);
    width: 36px;
    height: 36px;
    padding: 0;
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
}
.theme-toggle:hover { border-color: var(--primary); color: var(--primary); }

/* ── Main Container ───────────────────────────────────────────────── */
main.app-main {
    flex: 1;
    max-width: 1240px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem 1.25rem 3.5rem;
}

/* ── Hero Section ─────────────────────────────────────────────────── */
.hero-section {
    text-align: center;
    max-width: 820px;
    margin: 0 auto 2.25rem;
}

.hero-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary);
    background-color: var(--primary-light);
    border: 1px solid var(--primary-border);
    padding: 0.35rem 0.85rem;
    border-radius: 9999px;
    margin-bottom: 0.9rem;
}

.hero-pill .dot {
    width: 7px;
    height: 7px;
    background-color: var(--primary);
    border-radius: 50%;
    display: inline-block;
}

.hero-title {
    font-size: 2.35rem;
    font-weight: 850;
    color: var(--slate-900);
    letter-spacing: -0.03em;
    line-height: 1.18;
    margin-bottom: 0.75rem;
}

.hero-title span {
    color: var(--primary);
}

.hero-lead {
    font-size: 1.05rem;
    color: var(--slate-600);
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.fiscal-constant-bar {
    display: inline-flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    background-color: #ffffff;
    border: 1px solid var(--slate-200);
    padding: 0.55rem 1.15rem;
    border-radius: 9999px;
    font-size: 0.85rem;
    color: var(--slate-700);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.fiscal-constant-bar strong {
    color: var(--slate-900);
    font-weight: 700;
}

.fiscal-constant-bar .divider {
    color: var(--slate-300);
}

/* ── Interactive Input Card ───────────────────────────────────────── */
.input-panel {
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: 1.75rem 2rem;
    box-shadow: var(--card-shadow);
    margin-bottom: 1.75rem;
}

.input-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 1.25rem;
    align-items: flex-end;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.input-label {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--slate-800);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.input-subhint {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--slate-500);
}

.input-control-box {
    display: flex;
    align-items: center;
    border: 2px solid var(--slate-200);
    border-radius: var(--radius-md);
    background-color: #ffffff;
    transition: var(--transition-base);
    overflow: hidden;
}

.input-control-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-ring);
}

.input-currency-symbol {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--slate-400);
    padding-left: 1rem;
    user-select: none;
}

.gross-input {
    width: 100%;
    border: none;
    outline: none;
    font-size: 1.75rem;
    font-weight: 750;
    color: var(--slate-900);
    padding: 0.75rem 0.85rem;
    font-family: inherit;
    background: transparent;
}

.gross-input::placeholder {
    color: var(--slate-300);
    font-weight: 400;
}

.currency-select-wrapper {
    position: relative;
    border-left: 1px solid var(--slate-200);
    background-color: var(--slate-50);
}

.currency-select {
    border: none;
    background: transparent;
    outline: none;
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary);
    padding: 0.95rem 2.2rem 0.95rem 1rem;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    font-family: inherit;
}

.currency-select-wrapper::after {
    content: "▾";
    position: absolute;
    right: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    font-size: 0.85rem;
    color: var(--primary);
}

.exchange-rate-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.84rem;
    color: var(--slate-600);
    background: var(--slate-100);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--slate-200);
    white-space: nowrap;
    height: 60px;
}

.exchange-rate-badge strong {
    color: var(--slate-900);
}

.converted-preview {
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--slate-500);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.converted-preview strong {
    color: var(--primary);
    font-weight: 700;
}

/* ── Quick Preset Chips ───────────────────────────────────────────── */
.presets-container {
    margin-top: 1.15rem;
    padding-top: 1.15rem;
    border-top: 1px dashed var(--slate-200);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* ── Foreign platform income estimator ──────────────────────────── */
.foreign-income-panel {
    margin: 0 0 1.75rem;
    padding: 1.75rem 2rem 1.5rem;
    border: 1px solid #bfdbfe;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #eff6ff 0%, #ffffff 58%, #f0fdf4 100%);
    box-shadow: var(--card-shadow);
}
.foreign-income-kicker { color: #2563eb; font-size: .72rem; font-weight: 850; letter-spacing: .12em; }
.foreign-income-intro h2 { margin: .35rem 0 .35rem; color: var(--slate-900); font-size: 1.3rem; font-weight: 850; }
.foreign-income-intro p { max-width: 820px; margin: 0; color: var(--slate-600); font-size: .88rem; line-height: 1.55; }
.foreign-income-form { display: grid; grid-template-columns: 1.2fr 1fr 1.15fr 1fr 1fr; gap: .8rem; margin-top: 1.25rem; }
.foreign-field { display: flex; flex-direction: column; gap: .35rem; }
.foreign-field label { color: var(--slate-700); font-size: .76rem; font-weight: 750; line-height: 1.3; }
.foreign-field label span { color: var(--slate-500); font-weight: 500; }
.foreign-field input, .foreign-field select { width: 100%; min-height: 44px; border: 1px solid var(--slate-200); border-radius: var(--radius-md); background: #fff; color: var(--slate-900); padding: .65rem .75rem; font: inherit; }
.foreign-field input:focus, .foreign-field select:focus { border-color: #2563eb; outline: 0; box-shadow: 0 0 0 3px #2563eb22; }
.foreign-control { display: flex; border: 1px solid var(--slate-200); border-radius: var(--radius-md); background: #fff; overflow: hidden; }
.foreign-control input { min-width: 0; border: 0; border-radius: 0; }
.foreign-control select { width: 84px; border: 0; border-left: 1px solid var(--slate-200); border-radius: 0; padding-left: .55rem; padding-right: .3rem; font-size: .8rem; font-weight: 750; }
.foreign-input-note { display: flex; gap: .45rem; margin: 1rem 0 0; color: var(--slate-500); font-size: .76rem; line-height: 1.5; }
.foreign-input-note span { color: #2563eb; font-weight: 800; }
.foreign-results { display: grid; grid-template-columns: minmax(180px, .8fr) 2fr; gap: 1rem; align-items: stretch; margin-top: 1.2rem; }
.foreign-result-main { display: flex; flex-direction: column; justify-content: center; border-radius: var(--radius-md); background: #1e40af; color: #fff; padding: 1.1rem 1.25rem; }
.foreign-result-main span { font-size: .76rem; font-weight: 650; opacity: .86; }
.foreign-result-main strong { margin: .15rem 0; font-size: clamp(1.45rem, 3vw, 2rem); line-height: 1.1; }
.foreign-result-main small { font-size: .75rem; opacity: .8; }
.foreign-result-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .6rem; }
.foreign-result-grid > div { min-width: 0; padding: .8rem .9rem; border: 1px solid var(--slate-200); border-radius: var(--radius-md); background: #ffffffc9; }
.foreign-result-grid span { display: block; color: var(--slate-500); font-size: .7rem; line-height: 1.25; }
.foreign-result-grid strong { display: block; margin-top: .3rem; color: var(--slate-900); font-size: 1rem; }
.foreign-result-grid small { display: block; margin-top: .15rem; color: var(--slate-500); font-size: .67rem; }
.foreign-disclaimer { margin: 1rem 0 0; color: var(--slate-500); font-size: .72rem; line-height: 1.5; }
.foreign-disclaimer a { color: #1d4ed8; font-weight: 700; }
.foreign-method { margin-top: 1rem; border-top: 1px dashed #bfdbfe; padding-top: .8rem; color: var(--slate-600); font-size: .76rem; }
.foreign-method summary { color: #1d4ed8; cursor: pointer; font-weight: 750; }
.foreign-method p { max-width: 900px; margin: .6rem 0 0; line-height: 1.55; }
body.dark-theme .foreign-income-panel { border-color: #1d4ed8; background: linear-gradient(135deg, #172554 0%, #111827 60%, #052e16 100%); }
body.dark-theme .foreign-income-intro h2, body.dark-theme .foreign-result-grid strong { color: #f8fafc; }
body.dark-theme .foreign-field input, body.dark-theme .foreign-field select, body.dark-theme .foreign-control, body.dark-theme .foreign-result-grid > div { background: #111827; color: #f8fafc; border-color: #334155; }
body.dark-theme .foreign-income-intro p, body.dark-theme .foreign-field label, body.dark-theme .foreign-input-note, body.dark-theme .foreign-disclaimer { color: #cbd5e1; }
body.dark-theme .foreign-result-grid > div { background: #111827cc; }
body.dark-theme .foreign-disclaimer a, body.dark-theme .foreign-method summary { color: #93c5fd; }
body.dark-theme .foreign-method { border-color: #1e40af; color: #cbd5e1; }
@media (max-width: 980px) { .foreign-income-form { grid-template-columns: repeat(2, 1fr); } .foreign-results { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .foreign-income-panel { padding: 1.25rem 1rem; } .foreign-income-form, .foreign-result-grid { grid-template-columns: 1fr; } .foreign-result-grid { gap: .5rem; } }
@media print { .foreign-income-panel { break-inside: avoid; } }

.preset-title {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--slate-400);
    margin-right: 0.25rem;
}

.preset-btn {
    background: var(--slate-100);
    border: 1px solid var(--slate-200);
    color: var(--slate-700);
    font-size: 0.82rem;
    font-weight: 600;
    padding: 0.35rem 0.75rem;
    border-radius: 9999px;
    cursor: pointer;
    transition: var(--transition-base);
    font-family: inherit;
}

.preset-btn:hover {
    background: var(--primary-light);
    border-color: var(--primary-border);
    color: var(--primary);
}

/* ── Threshold Stepper Progress ───────────────────────────────────── */
.thresholds-panel {
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    margin-bottom: 1.75rem;
}

.thresholds-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.6rem;
}

.thresholds-title {
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--slate-500);
}

.thresholds-status {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--primary);
}

.threshold-track {
    position: relative;
    height: 8px;
    background-color: var(--slate-100);
    border-radius: 9999px;
    overflow: hidden;
    margin-bottom: 0.6rem;
}

.threshold-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--green-500) 100%);
    width: 0%;
    border-radius: 9999px;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.threshold-ticks {
    display: flex;
    justify-content: space-between;
    font-size: 0.72rem;
    color: var(--slate-400);
    font-weight: 600;
}

.threshold-ticks span.active {
    color: var(--primary);
    font-weight: 700;
}

/* ── Dynamic Recommendation Banner ─────────────────────────────────── */
.recommendation-banner {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--green-50);
    border: 1px solid #bbf7d0;
    border-left: 5px solid var(--green-600);
    border-radius: var(--radius-md);
    padding: 1rem 1.35rem;
    margin-bottom: 2rem;
    transition: var(--transition-base);
}

.recommendation-icon {
    font-size: 1.6rem;
    line-height: 1;
    flex-shrink: 0;
}

.recommendation-content {
    flex: 1;
}

.recommendation-heading {
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--green-800);
    margin-bottom: 0.2rem;
}

.recommendation-text {
    font-size: 0.88rem;
    color: var(--slate-700);
    line-height: 1.45;
}

/* ── 3-Column Comparison Grid ─────────────────────────────────────── */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    align-items: stretch;
}

.fiscal-card {
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-xl);
    padding: 1.75rem 1.5rem;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    position: relative;
    transition: var(--transition-base);
}

.fiscal-card:hover {
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-2px);
}

.fiscal-card.is-winner {
    border-color: var(--green-500);
    box-shadow: var(--card-winner-shadow);
}

.winner-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--green-600);
    color: #ffffff;
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    box-shadow: 0 2px 6px rgba(22, 163, 74, 0.35);
    display: none;
}

.fiscal-card.is-winner .winner-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.card-header {
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--slate-100);
}

.card-type-tag {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.2rem 0.6rem;
    border-radius: 9999px;
    margin-bottom: 0.6rem;
    background-color: var(--slate-100);
    color: var(--slate-600);
}

.fiscal-card.is-winner .card-type-tag {
    background-color: var(--green-100);
    color: var(--green-800);
}

.card-title {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--slate-900);
    line-height: 1.25;
    margin-bottom: 0.25rem;
}

.card-subtitle {
    font-size: 0.82rem;
    color: var(--slate-500);
}

/* ── Net Income Display Banner ────────────────────────────────────── */
.net-display-box {
    background: linear-gradient(180deg, var(--green-50) 0%, #ffffff 100%);
    border: 1px solid #bbf7d0;
    border-radius: var(--radius-lg);
    padding: 1.15rem 1rem;
    text-align: center;
    margin-bottom: 1.5rem;
    position: relative;
}

.net-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--slate-500);
    margin-bottom: 0.25rem;
}

.net-amount {
    font-size: 2rem;
    font-weight: 850;
    color: var(--green-600);
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 0.35rem;
}

.net-details {
    display: flex;
    justify-content: center;
    gap: 0.85rem;
    font-size: 0.8rem;
    color: var(--slate-600);
}

.net-details span strong {
    color: var(--slate-800);
}

.net-monthly {
    margin-top: 0.4rem;
    font-size: 0.8rem;
    color: var(--slate-500);
}

.net-monthly strong {
    color: var(--green-700);
}

/* ── Granular Breakdown Rows ──────────────────────────────────────── */
.breakdown-table {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    margin-bottom: 1.5rem;
    flex: 1;
}

.breakdown-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--slate-100);
    font-size: 0.86rem;
}

.breakdown-row:last-child {
    border-bottom: none;
}

.breakdown-label-col {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    max-width: 60%;
}

.breakdown-name {
    font-weight: 600;
    color: var(--slate-700);
}

.breakdown-note {
    font-size: 0.72rem;
    color: var(--slate-400);
}

.breakdown-val-col {
    text-align: right;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.breakdown-val {
    font-weight: 700;
    color: var(--slate-800);
}

.breakdown-pct {
    font-size: 0.72rem;
    color: var(--slate-400);
}

.breakdown-row.total-dues {
    padding-top: 0.75rem;
    margin-top: 0.25rem;
    border-top: 2px solid var(--slate-200);
    border-bottom: none;
}

.breakdown-row.total-dues .breakdown-name {
    font-weight: 800;
    color: var(--slate-900);
}

.breakdown-row.total-dues .breakdown-val {
    font-size: 1rem;
    font-weight: 850;
    color: #dc2626;
}

/* ── Contextual Note Box ──────────────────────────────────────────── */
.contextual-note {
    background-color: var(--slate-50);
    border-left: 3px solid var(--primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: 0.75rem 0.85rem;
    font-size: 0.78rem;
    color: var(--slate-600);
    line-height: 1.45;
    margin-top: auto;
}

.contextual-note strong {
    color: var(--slate-800);
    display: block;
    margin-bottom: 0.15rem;
}

/* ── Side-by-Side Comparative Table ───────────────────────────────── */
.table-section {
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-xl);
    padding: 1.75rem;
    box-shadow: var(--card-shadow);
    margin-bottom: 2.5rem;
}

.table-header-block {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.table-title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--slate-900);
}

.table-subtitle {
    font-size: 0.84rem;
    color: var(--slate-500);
}

.table-actions {
    display: flex;
    gap: 0.6rem;
}

.btn-action {
    background: #ffffff;
    border: 1px solid var(--slate-300);
    color: var(--slate-700);
    font-size: 0.82rem;
    font-weight: 600;
    padding: 0.45rem 0.9rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: var(--transition-base);
    font-family: inherit;
}

.btn-action:hover {
    background: var(--slate-50);
    border-color: var(--slate-400);
    color: var(--slate-900);
}

.btn-action.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
}

.btn-action.btn-primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
}

.table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.comp-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.88rem;
}

.comp-table th,
.comp-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--slate-200);
}

.comp-table thead th {
    background-color: var(--slate-50);
    color: var(--slate-800);
    font-weight: 750;
    font-size: 0.84rem;
    letter-spacing: 0.02em;
    border-bottom: 2px solid var(--slate-300);
}

.comp-table th:first-child,
.comp-table td:first-child {
    padding-left: 1.25rem;
}

.comp-table th:last-child,
.comp-table td:last-child {
    padding-right: 1.25rem;
}

.comp-table tbody tr:hover {
    background-color: var(--slate-50);
}

.comp-table .cell-numeric {
    text-align: right;
    font-variant-numeric: tabular-nums;
    font-weight: 600;
}

.comp-table .highlight-row {
    background-color: var(--green-50);
    font-weight: 800;
}

.comp-table .highlight-row td {
    color: var(--green-800);
    border-top: 2px solid var(--green-500);
    border-bottom: 2px solid var(--green-500);
}

.comp-table .highlight-row .cell-numeric {
    color: var(--green-700);
    font-size: 1.05rem;
    font-weight: 850;
}

/* ── Legal & Fiscal Guide Section ─────────────────────────────────── */
.fiscal-guide-section {
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--card-shadow);
    margin-bottom: 2rem;
}

.guide-title {
    font-size: 1.35rem;
    font-weight: 850;
    color: var(--slate-900);
    margin-bottom: 0.4rem;
}

.guide-subtitle {
    font-size: 0.88rem;
    color: var(--slate-500);
    margin-bottom: 1.5rem;
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.guide-col {
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
    padding: 1.25rem;
}

.guide-col h3 {
    font-size: 1rem;
    font-weight: 800;
    color: var(--slate-900);
    margin-bottom: 0.65rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.guide-col p {
    font-size: 0.84rem;
    color: var(--slate-600);
    line-height: 1.5;
    margin-bottom: 0.65rem;
}

.guide-col ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    font-size: 0.82rem;
    color: var(--slate-700);
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.guide-col ul li {
    position: relative;
    padding-left: 1.1rem;
}

.guide-col ul li::before {
    content: "•";
    position: absolute;
    left: 0.2rem;
    color: var(--primary);
    font-weight: 800;
}

/* ── Toast Notification ───────────────────────────────────────────── */
.toast-notice {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--slate-900);
    color: #ffffff;
    font-size: 0.86rem;
    font-weight: 600;
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    opacity: 0;
    transform: translateY(12px);
    transition: var(--transition-base);
    pointer-events: none;
}

.toast-notice.show {
    opacity: 1;
    transform: translateY(0);
}

/* ── Footer ───────────────────────────────────────────────────────── */
.site-footer {
    background-color: #ffffff;
    border-top: 1px solid var(--slate-200);
    padding: 1.75rem 1.5rem;
    margin-top: auto;
}

.footer-inner {
    max-width: 1240px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.86rem;
    color: var(--slate-500);
}

.footer-inner a {
    color: var(--slate-600);
    text-decoration: none;
    transition: var(--transition-base);
}

.footer-inner a:hover {
    color: var(--primary);
}

/* Panels that use a fixed white in the light design need an explicit dark
   surface as well; the text and borders already follow the variables above. */
body.dark-theme .site-header,
body.dark-theme .fiscal-constant-bar,
body.dark-theme .input-panel,
body.dark-theme .input-control-box,
body.dark-theme .thresholds-panel,
body.dark-theme .fiscal-card,
body.dark-theme .table-section,
body.dark-theme .fiscal-guide-section,
body.dark-theme .btn-action,
body.dark-theme .site-footer {
    background-color: #111827;
}

body.dark-theme .net-display-box {
    background: linear-gradient(180deg, var(--green-50) 0%, #111827 100%);
    border-color: #166534;
}

body.dark-theme .recommendation-banner { border-color: #166534; }
body.dark-theme .btn-action:hover { background: #1e293b; }
body.dark-theme .comp-table tbody tr:hover { background-color: #1e293b; }
body.dark-theme .currency-select-wrapper,
body.dark-theme .guide-col { background-color: var(--slate-100); }


/* ── Responsive Viewports ─────────────────────────────────────────── */
@media (max-width: 980px) {
    .comparison-grid {
        grid-template-columns: 1fr;
        gap: 1.75rem;
    }

    .guide-grid {
        grid-template-columns: 1fr;
    }

    .input-grid {
        grid-template-columns: 1fr;
    }

    .exchange-rate-badge {
        height: auto;
        justify-content: space-between;
    }

    .hero-title {
        font-size: 1.85rem;
    }
}

@media (max-width: 640px) {
    main.app-main {
        padding: 1.25rem 0.85rem 2.5rem;
    }

    .input-panel {
        padding: 1.25rem 1rem;
    }

    .gross-input {
        font-size: 1.4rem;
    }

    .fiscal-card {
        padding: 1.25rem 1rem;
    }

    .net-amount {
        font-size: 1.75rem;
    }

    .table-section {
        padding: 1.25rem 0.85rem;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
}

/* ── Print Styles ─────────────────────────────────────────────────── */
@media print {
    .site-header,
    .presets-container,
    .table-actions,
    .site-footer,
    .toast-notice {
        display: none !important;
    }

    body, html {
        background: #ffffff !important;
        color: #000000 !important;
    }

    .fiscal-card,
    .input-panel,
    .table-section,
    .fiscal-guide-section {
        box-shadow: none !important;
        border: 1px solid #ccc !important;
        break-inside: avoid;
    }

    .comparison-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr) !important;
    }
}