/* ============================================================
   GST Professional Data Extractor — Stylesheet
   Digital E-Filing Coach | Amanuddin Education
   ============================================================ */

/* ===== CSS RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Primary Palette */
    --color-bg-main: rgb(15, 23, 42);
    --color-bg-section-dark: rgb(20, 30, 55);
    --color-bg-section-light: rgb(25, 38, 68);
    --color-bg-card: rgb(30, 45, 80);
    --color-bg-card-hover: rgb(38, 55, 95);
    --color-bg-input: rgb(22, 33, 60);

    /* Accent Colors */
    --color-accent-gold: rgb(245, 185, 50);
    --color-accent-blue: rgb(56, 132, 244);
    --color-accent-green: rgb(34, 197, 94);
    --color-accent-red: rgb(239, 68, 68);
    --color-accent-violet: rgb(139, 92, 246);
    --color-accent-cyan: rgb(6, 182, 212);
    --color-accent-orange: rgb(249, 115, 22);
    --color-accent-saffron: rgb(255, 153, 51);

    /* Text Colors */
    --color-text-primary: rgb(240, 243, 250);
    --color-text-secondary: rgb(170, 180, 210);
    --color-text-muted: rgb(120, 135, 170);
    --color-text-heading: rgb(255, 255, 255);
    --color-text-on-accent: rgb(15, 23, 42);

    /* Border Colors */
    --color-border: rgb(50, 65, 105);
    --color-border-accent: rgb(56, 132, 244);
    --color-border-gold: rgb(245, 185, 50);

    /* Shadows */
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.35);
    --shadow-card: 0 6px 30px rgba(0, 0, 0, 0.4);
    --shadow-glow-gold: 0 0 20px rgba(245, 185, 50, 0.15);
    --shadow-glow-blue: 0 0 20px rgba(56, 132, 244, 0.15);

    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Source Sans Pro', 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;

    /* Spacing */
    --section-padding: 70px 5%;
    --border-radius: 10px;
    --border-radius-sm: 6px;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-weight: 600;
    color: var(--color-text-primary);
    background-color: var(--color-bg-main);
    line-height: 1.7;
    overflow-x: hidden;
    min-height: 100vh;
}

/* All fonts bold as requested */
body, input, select, textarea, button, th, td, label, p, span, a, li, h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--color-bg-main); }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-accent-blue); }

/* ===== TOP NAVIGATION ===== */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    height: 64px;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 2px solid var(--color-border);
    box-shadow: var(--shadow-soft);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-icon {
    color: var(--color-accent-gold);
    font-size: 1.4rem;
}

.nav-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--color-accent-gold);
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    gap: 6px;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    padding: 6px 14px;
    border-radius: var(--border-radius-sm);
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-accent-gold);
    background: rgba(245, 185, 50, 0.08);
    border-color: rgba(245, 185, 50, 0.25);
}

.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-hamburger span {
    width: 26px;
    height: 3px;
    background: var(--color-accent-gold);
    border-radius: 2px;
    transition: 0.3s;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(12px);
    z-index: 999;
    flex-direction: column;
    padding: 15px 30px;
    border-bottom: 2px solid var(--color-border);
}

.mobile-menu.open {
    display: flex;
}

.mobile-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    padding: 12px 10px;
    font-size: 1rem;
    border-bottom: 1px solid var(--color-border);
    transition: 0.3s;
}

.mobile-link:hover {
    color: var(--color-accent-gold);
    padding-left: 20px;
}

/* ===== HERO SECTION ===== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 5% 60px;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(56, 132, 244, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(245, 185, 50, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 80%, rgba(139, 92, 246, 0.06) 0%, transparent 50%),
        linear-gradient(175deg, rgb(15, 23, 42) 0%, rgb(20, 30, 60) 50%, rgb(15, 23, 42) 100%);
    text-align: center;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.015'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 3px;
    color: var(--color-accent-gold);
    border: 1.5px solid var(--color-accent-gold);
    padding: 6px 22px;
    border-radius: 30px;
    margin-bottom: 28px;
    text-transform: uppercase;
    animation: fadeInDown 0.8s ease;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 3.6rem;
    line-height: 1.15;
    color: var(--color-text-heading);
    margin-bottom: 20px;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-highlight {
    color: var(--color-accent-gold);
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto 35px;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 18px;
    flex-wrap: wrap;
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-features {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
    animation: fadeInUp 0.8s ease 0.8s both;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    color: var(--color-text-muted);
}

.feature-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent-green);
    border-radius: 50%;
    display: inline-block;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-body);
    font-weight: 800;
    font-size: 0.92rem;
    padding: 12px 28px;
    border: 2px solid transparent;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    outline: none;
    letter-spacing: 0.3px;
}

.btn-primary {
    background: var(--color-accent-gold);
    color: var(--color-text-on-accent);
    border-color: var(--color-accent-gold);
}

.btn-primary:hover {
    background: rgb(230, 170, 30);
    border-color: rgb(230, 170, 30);
    box-shadow: var(--shadow-glow-gold);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--color-accent-blue);
    border-color: var(--color-accent-blue);
}

.btn-secondary:hover {
    background: rgba(56, 132, 244, 0.1);
    box-shadow: var(--shadow-glow-blue);
    transform: translateY(-2px);
}

.btn-danger {
    background: var(--color-accent-red);
    color: white;
    border-color: var(--color-accent-red);
}

.btn-danger:hover {
    background: rgb(220, 50, 50);
    transform: translateY(-2px);
}

.btn-warning {
    background: var(--color-accent-orange);
    color: white;
    border-color: var(--color-accent-orange);
}

.btn-warning:hover {
    background: rgb(230, 100, 10);
    transform: translateY(-2px);
}

.btn-sm {
    font-size: 0.82rem;
    padding: 8px 18px;
}

/* ===== SECTION HEADINGS ===== */
.section-heading {
    font-family: var(--font-display);
    font-size: 2.2rem;
    color: var(--color-accent-gold);
    text-align: center;
    margin-bottom: 10px;
    letter-spacing: 0.5px;
}

.section-subtext {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 1rem;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== QUICK NAV SECTION ===== */
.quick-nav-section {
    padding: var(--section-padding);
    background: var(--color-bg-section-dark);
    border-top: 2px solid var(--color-border);
    border-bottom: 2px solid var(--color-border);
}

.quick-nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    max-width: 1100px;
    margin: 0 auto;
}

.quick-nav-btn {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 22px;
    background: var(--color-bg-card);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
}

.quick-nav-btn:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-accent-gold);
    box-shadow: var(--shadow-glow-gold);
    transform: translateY(-3px);
}

.qn-icon {
    font-size: 1.6rem;
    min-width: 36px;
    text-align: center;
}

.qn-label {
    flex: 1;
}

/* ===== UPLOAD SECTION ===== */
.upload-section {
    padding: var(--section-padding);
    background: var(--color-bg-section-light);
}

.upload-area {
    max-width: 650px;
    margin: 0 auto 30px;
    padding: 50px 30px;
    border: 3px dashed var(--color-border-accent);
    border-radius: var(--border-radius);
    text-align: center;
    background: var(--color-bg-card);
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-area:hover, .upload-area.drag-over {
    border-color: var(--color-accent-gold);
    background: var(--color-bg-card-hover);
    box-shadow: var(--shadow-glow-gold);
}

.upload-icon {
    font-size: 3.5rem;
    margin-bottom: 15px;
}

.upload-text {
    font-size: 1.15rem;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.upload-or {
    color: var(--color-text-muted);
    margin: 10px 0;
    font-size: 0.9rem;
}

.upload-btn {
    margin-top: 5px;
}

.upload-hint {
    margin-top: 15px;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* File Info Box */
.file-info-box {
    max-width: 650px;
    margin: 0 auto 20px;
    padding: 22px 28px;
    background: var(--color-bg-card);
    border: 2px solid var(--color-accent-green);
    border-radius: var(--border-radius);
}

.file-info-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-border);
}

.file-info-row:last-of-type {
    border-bottom: none;
}

.file-info-label {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.file-info-value {
    color: var(--color-accent-green);
    font-size: 0.9rem;
    font-family: var(--font-mono);
}

.file-info-actions {
    display: flex;
    gap: 12px;
    margin-top: 18px;
    justify-content: center;
}

/* Loader */
.loader-box {
    max-width: 650px;
    margin: 0 auto 20px;
    text-align: center;
    padding: 30px;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid var(--color-border);
    border-top-color: var(--color-accent-gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 15px;
}

.loader-text {
    color: var(--color-accent-gold);
    font-size: 1rem;
}

.extract-status {
    max-width: 650px;
    margin: 0 auto;
    padding: 15px 22px;
    border-radius: var(--border-radius-sm);
    text-align: center;
    font-size: 0.95rem;
}

.extract-status.success {
    background: rgba(34, 197, 94, 0.12);
    border: 1.5px solid var(--color-accent-green);
    color: var(--color-accent-green);
}

.extract-status.error {
    background: rgba(239, 68, 68, 0.12);
    border: 1.5px solid var(--color-accent-red);
    color: var(--color-accent-red);
}

.extract-status.info {
    background: rgba(56, 132, 244, 0.12);
    border: 1.5px solid var(--color-accent-blue);
    color: var(--color-accent-blue);
}

/* ===== MANUAL ENTRY SECTION ===== */
.manual-entry-section {
    padding: var(--section-padding);
    background: var(--color-bg-section-dark);
}

.form-container {
    max-width: 950px;
    margin: 0 auto;
    padding: 35px;
    background: var(--color-bg-card);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-card);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
    margin-bottom: 28px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    letter-spacing: 0.3px;
}

.req {
    color: var(--color-accent-red);
}

.form-group input,
.form-group select {
    padding: 11px 14px;
    background: var(--color-bg-input);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: 0.92rem;
    font-weight: 700;
    outline: none;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--color-accent-gold);
    box-shadow: 0 0 0 3px rgba(245, 185, 50, 0.1);
}

.form-group input::placeholder {
    color: var(--color-text-muted);
    font-weight: 600;
}

.form-group select option {
    background: var(--color-bg-main);
    color: var(--color-text-primary);
}

.form-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== DATA TABLE SECTION ===== */
.data-table-section {
    padding: var(--section-padding);
    background: var(--color-bg-section-light);
}

.table-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    max-width: 100%;
    flex-wrap: wrap;
    gap: 12px;
}

.table-info {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

.table-info span {
    color: var(--color-accent-gold);
    font-family: var(--font-mono);
    font-size: 1.1rem;
}

.table-wrapper {
    overflow-x: auto;
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-card);
}

.gst-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 1300px;
    background: var(--color-bg-card);
}

.gst-table thead {
    background: linear-gradient(135deg, rgb(30, 50, 90), rgb(20, 35, 70));
}

.gst-table th {
    padding: 14px 12px;
    font-size: 0.8rem;
    color: var(--color-accent-gold);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    border-bottom: 3px solid var(--color-accent-gold);
    white-space: nowrap;
    text-align: center;
    font-weight: 900;
}

.gst-table td {
    padding: 11px 12px;
    font-size: 0.85rem;
    color: var(--color-text-primary);
    border-bottom: 1px solid var(--color-border);
    text-align: center;
    vertical-align: middle;
}

.gst-table tbody tr:hover {
    background: var(--color-bg-card-hover);
}

.gst-table tbody tr:nth-child(even) {
    background: rgba(56, 132, 244, 0.03);
}

.empty-message {
    color: var(--color-text-muted);
    font-style: italic;
    padding: 35px 15px !important;
}

.delete-row-btn {
    background: var(--color-accent-red);
    color: white;
    border: none;
    padding: 5px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 800;
    font-size: 0.78rem;
    transition: 0.3s;
}

.delete-row-btn:hover {
    background: rgb(200, 50, 50);
    transform: scale(1.05);
}

/* ===== SUMMARY SECTION ===== */
.summary-section {
    padding: var(--section-padding);
    background: var(--color-bg-section-dark);
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    max-width: 1100px;
    margin: 0 auto;
}

.summary-card {
    padding: 25px 20px;
    border-radius: var(--border-radius);
    border: 2px solid var(--color-border);
    background: var(--color-bg-card);
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-soft);
}

.summary-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}

.summary-icon {
    font-size: 1.8rem;
    margin-bottom: 8px;
}

.summary-label {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.summary-value {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 900;
}

.card-total { border-left: 5px solid var(--color-accent-blue); }
.card-total .summary-icon, .card-total .summary-value { color: var(--color-accent-blue); }

.card-discount { border-left: 5px solid var(--color-accent-orange); }
.card-discount .summary-icon, .card-discount .summary-value { color: var(--color-accent-orange); }

.card-taxable { border-left: 5px solid var(--color-accent-green); }
.card-taxable .summary-icon, .card-taxable .summary-value { color: var(--color-accent-green); }

.card-cgst { border-left: 5px solid var(--color-accent-cyan); }
.card-cgst .summary-icon, .card-cgst .summary-value { color: var(--color-accent-cyan); }

.card-sgst { border-left: 5px solid var(--color-accent-violet); }
.card-sgst .summary-icon, .card-sgst .summary-value { color: var(--color-accent-violet); }

.card-igst { border-left: 5px solid var(--color-accent-saffron); }
.card-igst .summary-icon, .card-igst .summary-value { color: var(--color-accent-saffron); }

.card-grand { border-left: 5px solid var(--color-accent-gold); }
.card-grand .summary-icon, .card-grand .summary-value { color: var(--color-accent-gold); }

.card-records { border-left: 5px solid var(--color-accent-red); }
.card-records .summary-icon, .card-records .summary-value { color: var(--color-accent-red); }

/* ===== EXPORT SECTION ===== */
.export-section {
    padding: var(--section-padding);
    background: var(--color-bg-section-light);
}

.export-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    max-width: 1100px;
    margin: 0 auto;
}

.export-card {
    padding: 32px 24px;
    background: var(--color-bg-card);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-soft);
}

.export-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-card);
    border-color: var(--color-accent-gold);
}

.export-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 900;
    color: white;
}

.export-icon-excel { background: linear-gradient(135deg, rgb(16, 124, 65), rgb(34, 180, 90)); }
.export-icon-word { background: linear-gradient(135deg, rgb(32, 86, 180), rgb(56, 132, 244)); }
.export-icon-pdf { background: linear-gradient(135deg, rgb(180, 30, 30), rgb(239, 68, 68)); }
.export-icon-print { background: linear-gradient(135deg, rgb(100, 70, 180), rgb(139, 92, 246)); font-size: 1.8rem; }

.export-card h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--color-text-heading);
    margin-bottom: 8px;
}

.export-card p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 20px;
    line-height: 1.6;
}

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

/* ===== DISCLAIMER SECTION ===== */
.disclaimer-section {
    padding: var(--section-padding);
    background: var(--color-bg-section-dark);
    border-top: 2px solid var(--color-border);
}

.disclaimer-box {
    max-width: 800px;
    margin: 0 auto;
    padding: 35px 40px;
    background: rgba(239, 68, 68, 0.06);
    border: 2px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--border-radius);
    text-align: center;
}

.disclaimer-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: var(--color-accent-red);
}

.disclaimer-box h2 {
    font-family: var(--font-display);
    color: var(--color-accent-red);
    font-size: 1.6rem;
    margin-bottom: 15px;
}

.disclaimer-box p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 12px;
}

.disclaimer-sub {
    font-size: 0.88rem !important;
    color: var(--color-accent-gold) !important;
    font-style: italic;
}

/* ===== FOOTER ===== */
.site-footer {
    padding: 35px 5%;
    background: rgb(10, 16, 30);
    border-top: 3px solid var(--color-accent-gold);
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 12px;
}

.footer-icon {
    color: var(--color-accent-gold);
    font-size: 1.2rem;
}

.footer-title {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--color-accent-gold);
}

.footer-copy {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 5px;
}

.footer-note {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* ===== BACK TO TOP ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--color-accent-gold);
    color: var(--color-text-on-accent);
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: var(--shadow-card);
    display: none;
    z-index: 999;
    transition: all 0.3s ease;
}

.back-to-top:hover {
    background: rgb(230, 170, 30);
    transform: scale(1.1);
}

.back-to-top.visible {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== PRINT STYLES ===== */
@media print {
    body {
        background: white !important;
        color: black !important;
        font-size: 11pt;
    }

    .top-nav, .mobile-menu, .hero-section, .quick-nav-section,
    .upload-section, .manual-entry-section, .export-section,
    .back-to-top, .no-print, .delete-row-btn,
    .table-toolbar, .disclaimer-section, .site-footer {
        display: none !important;
    }

    .data-table-section, .summary-section {
        background: white !important;
        padding: 15px !important;
    }

    .section-heading {
        color: rgb(15, 23, 42) !important;
        font-size: 18pt;
    }

    .section-subtext {
        color: rgb(80, 80, 80) !important;
    }

    .gst-table {
        border: 2px solid rgb(0, 0, 0) !important;
        background: white !important;
        min-width: unset !important;
        width: 100% !important;
    }

    .gst-table th {
        background: rgb(30, 50, 90) !important;
        color: white !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
        font-size: 8pt;
        padding: 6px 4px;
        border: 1px solid rgb(0, 0, 0);
    }

    .gst-table td {
        color: black !important;
        font-size: 9pt;
        padding: 5px 4px;
        border: 1px solid rgb(150, 150, 150);
    }

    .summary-grid {
        display: grid !important;
        grid-template-columns: repeat(4, 1fr) !important;
        gap: 10px !important;
    }

    .summary-card {
        border: 1px solid rgb(150, 150, 150) !important;
        background: white !important;
        padding: 10px !important;
    }

    .summary-label { color: rgb(80, 80, 80) !important; font-size: 8pt; }
    .summary-value { color: rgb(0, 0, 0) !important; font-size: 12pt; }
    .summary-icon { display: none; }

    .table-wrapper {
        overflow: visible !important;
        border: none !important;
        box-shadow: none !important;
    }

    @page {
        margin: 15mm;
        size: landscape;
    }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    .nav-links { display: none; }
    .nav-hamburger { display: flex; }

    .hero-title { font-size: 2.5rem; }
    .hero-subtitle { font-size: 1rem; }

    :root {
        --section-padding: 50px 4%;
    }

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

    .summary-grid, .export-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 550px) {
    .hero-title { font-size: 2rem; }

    .quick-nav-grid, .summary-grid, .export-grid {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

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

    .form-container {
        padding: 20px 16px;
    }

    .disclaimer-box {
        padding: 25px 20px;
    }
}