:root {
            --bg-primary: #0a0e17;
            --bg-secondary: #131824;
            --bg-tertiary: #1a2332;
            --accent-cyan: #00d4ff;
            --accent-green: #00ff88;
            --accent-amber: #ffb800;
            --text-primary: #e8edf4;
            --text-secondary: #8b95a8;
            --border: #2a3649;
            --shadow: rgba(0, 212, 255, 0.15);
        }

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

        body {
            font-family: 'JetBrains Mono', monospace;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            /* Reserve the vertical scrollbar's space always, whether or not it's
               actually needed. Without this, content width depends on whether a
               scrollbar happens to be showing (driven by page height, which
               itself depends on width via text wrapping) — so shrinking the
               window and growing it back to the exact same width can still land
               on a different available content width, causing grids like
               .metrics-grid to lay out into a different number of columns. */
            scrollbar-gutter: stable;
        }

        /* Background effect */
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: 
                radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(0, 255, 136, 0.05) 0%, transparent 50%);
            pointer-events: none;
            z-index: 0;
        }

        .container {
            position: relative;
            z-index: 1;
            max-width: 1400px;
            margin: 0 auto;
            padding: 40px 20px;
        }

        .home-container {
            position: relative;
            z-index: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 20px;
            text-align: center;
        }

        .home-title-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
        }

        .home-title-row h1 {
            margin-bottom: 0;
        }

        .home-hexagon-outline {
            fill: none;
            stroke: var(--border);
            stroke-width: 1.5;
        }

        .home-hexagon-shape {
            stroke: var(--accent-green);
            stroke-width: 2;
            stroke-linejoin: round;
        }

        .home-hexagon-point {
            fill: var(--accent-cyan);
            stroke: var(--bg-primary);
            stroke-width: 1;
        }

        .home-explore-btn {
            display: inline-block;
            margin-top: 30px;
            padding: 14px 40px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
            color: var(--bg-primary);
            border-radius: 6px;
            text-decoration: none;
            font-family: 'JetBrains Mono', monospace;
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.03em;
            transition: all 0.2s ease;
            animation: fadeInUp 0.8s ease-out 0.4s backwards;
        }

        .home-explore-btn:hover {
            box-shadow: 0 4px 20px var(--shadow);
            transform: translateY(-2px);
        }

        h1 {
            font-family: 'JetBrains Mono', monospace;
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 10px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-align: center;
            animation: fadeInDown 0.8s ease-out;
        }

        .nav-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
            margin-top: 24px;
            margin-bottom: 30px;
        }

        .nav-button {
            padding: 10px 24px;
            background: var(--bg-secondary);
            color: var(--text-primary);
            border: 1px solid var(--border);
            border-radius: 6px;
            cursor: pointer;
            font-family: 'JetBrains Mono', monospace;
            font-weight: 600;
            font-size: 0.85rem;
            transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
        }

        .nav-button:hover {
            background: var(--bg-tertiary);
            border-color: var(--accent-cyan);
            transform: translateY(-2px);
        }

        .nav-button.active {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
            color: var(--bg-primary);
            border-color: transparent;
        }

        /* Dividend Optimizer */
        #optimizerView {
            display: none;
            animation: viewFadeIn 0.25s ease-out;
        }

        /* Glossary */
        #glossaryView {
            display: none;
            animation: viewFadeIn 0.25s ease-out;
        }

        /* FAQ */
        #faqView {
            display: none;
            animation: viewFadeIn 0.25s ease-out;
        }

        /* Pricing */
        #pricingView {
            display: none;
            animation: viewFadeIn 0.25s ease-out;
        }

        #pricingView .glossary-title {
            margin-top: 40px;
        }

        .pricing-grid {
            max-width: 700px;
            margin: 40px auto 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        @media (max-width: 640px) {
            .pricing-grid {
                grid-template-columns: 1fr;
            }
        }

        .pricing-card {
            position: relative;
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 32px 24px;
            text-align: center;
            transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

        .pricing-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 30px var(--shadow);
            transform: translateY(-2px);
        }

        .pricing-featured {
            border-color: var(--accent-cyan);
        }

        .pricing-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
            color: var(--bg-primary);
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            padding: 4px 14px;
            border-radius: 20px;
            white-space: nowrap;
        }

        .pricing-plan-name {
            color: var(--accent-amber);
            font-size: 1.05rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
        }

        .pricing-price {
            display: flex;
            align-items: baseline;
            justify-content: center;
            gap: 6px;
            margin-bottom: 12px;
        }

        .pricing-amount {
            font-size: 2.4rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .pricing-period {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .pricing-subnote {
            color: var(--text-primary);
            font-size: 0.8rem;
            line-height: 1.5;
            margin-bottom: 24px;
            min-height: 36px;
        }

        .pricing-features {
            display: inline-block;
            list-style: none;
            margin: 0 0 24px;
            padding: 0;
            text-align: left;
        }

        .pricing-features li {
            position: relative;
            padding-left: 22px;
            color: var(--text-primary);
            font-size: 0.82rem;
            line-height: 1.9;
        }

        .pricing-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent-green);
            font-weight: 700;
        }

        .pricing-cta {
            width: 100%;
            padding: 12px;
            background: var(--bg-tertiary);
            color: var(--text-primary);
            border: 1px solid var(--border);
            border-radius: 6px;
            cursor: pointer;
            font-family: 'JetBrains Mono', monospace;
            font-weight: 600;
            font-size: 0.85rem;
            transition: all 0.2s ease;
        }

        .pricing-cta:hover {
            background: var(--bg-primary);
            border-color: var(--accent-cyan);
            transform: translateY(-2px);
        }

        .pricing-featured .pricing-cta {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
            color: var(--bg-primary);
            border: none;
        }

        .pricing-featured .pricing-cta:hover {
            box-shadow: 0 4px 20px var(--shadow);
        }

        .glossary-title {
            color: var(--text-primary);
            font-size: 1.1rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-align: center;
            margin-bottom: 24px;
        }

        .hexagon-guide-title {
            color: var(--text-primary);
            font-size: 1.1rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-align: center;
            margin-bottom: 8px;
        }

        .hexagon-guide-caption {
            color: var(--text-primary);
            font-size: 0.85rem;
            line-height: 1.6;
            text-align: center;
            max-width: 500px;
            margin: 0 auto 40px;
        }

        .glossary-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .glossary-item {
            padding: 16px 12px;
            margin: 0 -12px;
            border-bottom: 1px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            line-height: 1.6;
            cursor: pointer;
            transition: background 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
        }

        .glossary-item:last-child {
            border-bottom: none;
        }

        .glossary-item:hover {
            background: var(--bg-secondary);
            box-shadow: 0 0 30px var(--shadow);
            transform: scale(1.02);
        }

        .glossary-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .glossary-term {
            color: var(--accent-cyan);
            font-size: 1.15rem;
            font-weight: 600;
            letter-spacing: 0.03em;
        }

        .glossary-toggle {
            color: var(--text-secondary);
            font-size: 1rem;
            flex-shrink: 0;
            margin-left: 12px;
            transition: transform 0.3s ease;
        }

        .glossary-toggle.expanded {
            transform: rotate(180deg);
        }

        .glossary-content {
            display: grid;
            grid-template-rows: 0fr;
            transition: grid-template-rows 0.3s ease;
        }

        .glossary-content.expanded {
            grid-template-rows: 1fr;
        }

        .glossary-content-inner {
            overflow: hidden;
            min-height: 0;
            padding-top: 10px;
        }

        .axis-interval-table {
            width: 100%;
        }

        .axis-interval-table thead {
            position: static;
        }

        .axis-interval-table th {
            cursor: default;
            color: var(--accent-amber);
        }

        .axis-interval-note {
            color: var(--text-secondary);
            font-size: 0.8rem;
            font-style: italic;
            text-align: center;
            margin-top: 12px;
        }

        .glossary-formula,
        .glossary-description,
        .glossary-how-to-use {
            color: var(--text-primary);
        }

        .glossary-description,
        .glossary-how-to-use {
            margin-top: 16px;
        }

        .glossary-label {
            color: var(--accent-amber);
            font-weight: 600;
        }

        .optimizer-container {
            max-width: 900px;
            margin: 0 auto;
        }

        .optimizer-section {
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 24px;
            margin-bottom: 24px;
        }

        .optimizer-title {
            color: var(--accent-cyan);
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.05em;
        }

        .stock-row {
            position: relative;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr auto auto;
            gap: 12px;
            margin-bottom: 12px;
            align-items: center;
            min-width: 0;
        }

        .stock-row-locked .input-field,
        .stock-row-locked .btn-autofill {
            filter: blur(3px);
        }

        .stock-row-lock-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 44px;
            bottom: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            background: rgba(10, 14, 23, 0.55);
            border: 1px dashed var(--accent-amber);
            border-radius: 6px;
            color: var(--accent-amber);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            cursor: pointer;
            white-space: nowrap;
        }

        .stock-row-lock-link {
            text-decoration: underline;
        }

        .input-field {
            background: var(--bg-primary);
            border: 1px solid var(--border);
            border-radius: 6px;
            padding: 10px 12px;
            color: var(--text-primary);
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.9rem;
            transition: all 0.2s ease;
            width: 100%;
            min-width: 0;
        }

        @media (max-width: 640px) {
            .stock-row {
                grid-template-columns: 1fr 1fr;
            }

            .stock-row .input-field:first-child {
                grid-column: 1 / -1;
            }
        }

        .input-field:focus {
            outline: none;
            border-color: var(--accent-cyan);
            box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.1);
        }

        .btn-remove {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-secondary);
            padding: 8px 12px;
            border-radius: 6px;
            cursor: pointer;
            font-size: 0.9rem;
            transition: all 0.2s ease;
        }

        .btn-remove:hover {
            border-color: #ff4444;
            color: #ff4444;
        }

        .btn-autofill {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--accent-cyan);
            padding: 8px 12px;
            border-radius: 6px;
            cursor: pointer;
            font-size: 0.75rem;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .btn-autofill:hover {
            background: var(--bg-tertiary);
            border-color: var(--accent-cyan);
        }

        .btn-add, .btn-optimize {
            padding: 10px 24px;
            background: var(--bg-tertiary);
            color: var(--text-primary);
            border: 1px solid var(--border);
            border-radius: 6px;
            cursor: pointer;
            font-family: 'JetBrains Mono', monospace;
            font-weight: 600;
            font-size: 0.85rem;
            transition: all 0.2s ease;
        }

        .btn-add:hover {
            background: var(--bg-primary);
            border-color: var(--accent-cyan);
            transform: translateY(-2px);
        }

        .btn-add-locked {
            color: var(--accent-amber);
            border-color: var(--accent-amber);
        }

        .btn-add-locked:hover {
            background: var(--bg-primary);
            border-color: var(--accent-amber);
            box-shadow: 0 4px 20px rgba(255, 184, 0, 0.15);
        }

        .btn-optimize {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
            color: var(--bg-primary);
            border: none;
            width: 100%;
            padding: 14px;
            font-size: 0.95rem;
        }

        .btn-optimize:hover {
            box-shadow: 0 4px 20px var(--shadow);
            transform: translateY(-2px);
        }

        .results-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
            margin-top: 20px;
        }

        .result-card {
            background: var(--bg-primary);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 16px;
        }

        .result-ticker {
            color: var(--accent-green);
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .result-shares {
            color: var(--text-primary);
            font-size: 0.9rem;
        }

        .result-summary {
            background: var(--bg-primary);
            border: 2px solid var(--accent-cyan);
            border-radius: 8px;
            padding: 20px;
            margin-top: 20px;
        }

        .summary-item {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
            font-size: 0.95rem;
        }

        .summary-label {
            color: var(--text-primary);
        }

        .summary-value {
            color: var(--accent-green);
            font-weight: 700;
        }

        .subtitle {
            text-align: center;
            color: var(--text-primary);
            font-size: 0.95rem;
            margin-bottom: 50px;
            letter-spacing: 0.05em;
            animation: fadeInUp 0.8s ease-out 0.2s backwards;
        }

        /* Table view */
        #tableView {
            animation: viewFadeIn 0.25s ease-out;
        }

        .table-wrapper {
            background: var(--bg-secondary);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
            border: 1px solid var(--border);
        }

        .filter-panel {
            background: var(--bg-tertiary);
            padding: 24px;
            border-bottom: 1px solid var(--border);
        }

        .filter-title {
            color: var(--accent-cyan);
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.05em;
        }

        .filter-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
            margin-bottom: 16px;
        }

        .filter-item {
            display: flex;
            flex-direction: column;
            gap: 6px;
            min-width: 0;
        }

        .filter-item.range {
            grid-column: span 2;
        }

        .filter-item.range > div {
            flex-wrap: wrap;
        }

        @media (max-width: 1200px) {
            .filter-item.range {
                grid-column: span 1;
            }
        }

        .filter-label {
            color: var(--text-secondary);
            font-size: 0.75rem;
            letter-spacing: 0.03em;
        }

        .filter-input {
            background: var(--bg-primary);
            border: 1px solid var(--border);
            border-radius: 6px;
            padding: 10px 12px;
            color: var(--text-primary);
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.85rem;
            transition: all 0.2s ease;
            width: 100%;
            min-width: 0;
            box-sizing: border-box;
        }

        .filter-input:focus {
            outline: none;
            border-color: var(--accent-cyan);
            box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.1);
        }

        .filter-input::placeholder {
            color: var(--text-secondary);
            opacity: 0.5;
            text-transform: none;
        }

        .filter-buttons {
            display: flex;
            gap: 12px;
        }

        .filter-button {
            padding: 10px 20px;
            border: 1px solid var(--border);
            border-radius: 6px;
            background: var(--bg-secondary);
            color: var(--text-primary);
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .filter-button:hover {
            background: var(--bg-primary);
            border-color: var(--accent-cyan);
            transform: translateY(-1px);
        }

        .filter-button.apply {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
            color: var(--bg-primary);
            border: none;
        }

        .filter-button.apply:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px var(--shadow);
        }

        .filter-status {
            color: var(--text-secondary);
            font-size: 0.8rem;
            margin-top: 12px;
        }

        .filter-status.active {
            color: var(--accent-green);
        }

        .table-container {
            overflow-x: auto;
            max-height: 600px;
            overflow-y: auto;
        }

        table {
            width: max-content;
            border-collapse: collapse;
            font-size: 0.9rem;
            table-layout: auto;
        }

        thead {
            position: sticky;
            top: 0;
            z-index: 10;
        }

        th {
            padding: 18px 8px;
            text-align: center;
            font-weight: 600;
            color: var(--accent-cyan);
            border-bottom: 2px solid var(--border);
            font-size: 0.85rem;
            line-height: 1.3;
            letter-spacing: 0.03em;
            cursor: pointer;
            user-select: none;
            transition: background 0.2s ease, color 0.2s ease;
            background: var(--bg-tertiary);
            white-space: nowrap;
            height: 72px;
        }

        th:hover {
            background: rgba(0, 212, 255, 0.05);
        }

        th.sortable::after {
            content: '⇅';
            margin-left: 6px;
            opacity: 0.3;
            font-size: 0.9em;
        }

        th.sorted-asc::after {
            content: '↑';
            opacity: 1;
            color: var(--accent-green);
        }

        th.sorted-desc::after {
            content: '↓';
            opacity: 1;
            color: var(--accent-green);
        }

        /* Custom tooltip */
        #customTooltip {
            position: fixed;
            background: rgba(19, 24, 36, 0.98);
            color: var(--text-primary);
            padding: 8px 12px;
            border-radius: 6px;
            font-size: 0.75rem;
            font-weight: 400;
            white-space: normal;
            max-width: 200px;
            text-align: center;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.2s ease;
            z-index: 10000;
            border: 1px solid var(--border);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
            line-height: 1.4;
        }

        #customTooltip.show {
            opacity: 1;
        }

        #customTooltip.error {
            border-color: #ff4444;
            color: #ff9999;
        }

        tbody tr {
            border-bottom: 1px solid var(--border);
            transition: background 0.2s ease, transform 0.2s ease;
            transform-origin: left center;
            /* With ~3600 rows in the DOM, any full-page reflow (like a window
               resize) forces the browser to re-lay-out every row even though
               only ~15 are visible in the scrollable table at once. This tells
               the browser to skip layout/paint entirely for off-screen rows,
               which is what was making resizing feel so slow. */
            content-visibility: auto;
            contain-intrinsic-size: auto 58px;
        }

        tbody tr:hover {
            background: var(--bg-tertiary);
            transform: scale(1.01);
        }

        td {
            padding: 16px 8px;
            white-space: nowrap;
            text-align: center;
        }

        .ticker-cell {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .ticker-link {
            display: inline;
            color: var(--accent-green);
            font-weight: 600;
            cursor: pointer;
            transition: color 0.2s ease;
        }

        .ticker-link:hover {
            color: var(--accent-cyan);
            text-decoration: underline;
        }

        .btn-add-optimizer {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--accent-cyan);
            padding: 4px 8px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 0.75rem;
            transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .btn-add-optimizer:hover {
            background: var(--bg-tertiary);
            border-color: var(--accent-cyan);
        }

        .btn-add-optimizer.added {
            background: var(--accent-green);
            border-color: var(--accent-green);
            color: var(--bg-primary);
        }

        .btn-add-optimizer.added:hover {
            background: #00cc6f;
            border-color: #00cc6f;
        }

        /* Premium gating — locked table rows for stocks outside the free set.
           Uses a text-shadow "faux blur" instead of filter: blur() — with
           thousands of locked rows on screen, per-element filter: blur() is
           extremely expensive to composite and was making hover feedback
           elsewhere in the table feel laggy. */
        tbody tr.locked-row {
            pointer-events: none;
            user-select: none;
            transition: none;
        }

        tbody tr.locked-row td {
            color: transparent;
            text-shadow: 0 0 8px rgba(232, 237, 244, 0.65);
        }

        tbody tr.locked-row .ticker-link {
            color: transparent;
            text-shadow: 0 0 8px rgba(0, 255, 136, 0.55);
        }

        tbody tr.locked-row .btn-add-optimizer {
            opacity: 0.25;
        }

        .premium-teaser-row td {
            padding: 22px 16px;
            background: var(--bg-secondary);
            border-top: 1px solid var(--accent-amber);
            border-bottom: 1px solid var(--accent-amber);
            white-space: normal;
        }

        .premium-teaser-content {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .premium-teaser-text {
            color: var(--text-primary);
            font-size: 0.85rem;
        }

        .premium-teaser-btn {
            padding: 8px 20px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
            color: var(--bg-primary);
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-family: 'JetBrains Mono', monospace;
            font-weight: 600;
            font-size: 0.8rem;
            white-space: nowrap;
            transition: all 0.2s ease;
        }

        .premium-teaser-btn:hover {
            box-shadow: 0 4px 20px var(--shadow);
            transform: translateY(-2px);
        }

        /* Detail view */
        #detailView {
            display: none;
            animation: fadeIn 0.5s ease-out;
        }

        .back-button {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: var(--bg-secondary);
            color: var(--text-primary);
            border: 1px solid var(--border);
            border-radius: 8px;
            cursor: pointer;
            font-family: 'JetBrains Mono', monospace;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all 0.2s ease;
            margin-bottom: 30px;
        }

        .back-button:hover {
            background: var(--bg-tertiary);
            border-color: var(--accent-cyan);
            transform: translateX(-4px);
        }

        .detail-header {
            text-align: center;
            margin-bottom: 10px;
            margin-top: -20px;
        }

        .detail-ticker {
            font-family: 'JetBrains Mono', monospace;
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent-green);
            margin-bottom: 5px;
        }

        .price-info {
            display: flex;
            flex-direction: column;
            gap: 4px;
            align-items: center;
            margin-bottom: 10px;
        }

        .price-row {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .price-row-main {
            font-size: 1.8rem;
        }

        .price-label {
            color: var(--text-secondary);
            margin-right: 8px;
        }

        .price-value {
            color: var(--text-primary);
            font-weight: 600;
        }

        .price-disclaimer {
            color: var(--text-secondary);
            font-size: 0.525rem;
            max-width: 480px;
            text-align: center;
            line-height: 1.5;
            margin-top: 6px;
        }

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

        .hexagon-container {
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 10px;
            /* Negative margin to crop into the canvas's own blank space around
               the (now smaller) hexagon drawing — the canvas element itself is
               larger than the shape drawn on it, so plain positive margins
               can't close this gap without shrinking the canvas further and
               risking clipping the side labels again. */
            margin: -50px 0;
        }

        #hexagonCanvas {
            /* drop-shadow (not box-shadow) so the glow follows the hexagon's
               actual shape instead of outlining the whole square canvas.
               Blur radius kept modest (down from the original 40px) since
               shadow cost grows sharply with it. */
            filter: drop-shadow(0 0 20px var(--shadow));
        }

        .description-section {
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 16px;
            margin: 0 auto 20px;
            max-width: 900px;
            width: fit-content;
        }

        .description-sector {
            color: var(--accent-amber);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-align: center;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, 200px);
            gap: 16px;
            margin-top: 30px;
            min-width: 0;
        }

        .metrics-chart-container {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 30px;
            margin-bottom: 40px;
            align-items: start;
        }

        @media (max-width: 1024px) {
            .metrics-chart-container {
                grid-template-columns: 1fr;
            }
        }

        .metric-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 16px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
        }

        .metric-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 30px var(--shadow);
            transform: translateY(-4px);
        }

        .metric-label {
            color: var(--accent-cyan);
            font-size: 0.7rem;
            margin-bottom: 6px;
            letter-spacing: 0.05em;
            font-weight: 600;
        }

        .metric-value {
            color: var(--text-primary);
            font-size: 1.3rem;
            font-weight: 700;
        }

        .dividend-chart-section {
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 30px;
            /* Without this, the canvas's own width/height attributes count as
               this column's intrinsic min-content size. Since Chart.js updates
               those asynchronously (resize is now debounced), this column's
               width could lag behind the container's real size and steal space
               from (or free up space for) the metrics-grid column next to it —
               which is what was making the metric cards land in a different
               spot after a shrink-then-restore resize cycle. */
            min-width: 0;
        }

        .dividend-chart-header {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 28px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .dividend-chart-title {
            color: var(--accent-cyan);
            font-size: 1.1rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-align: center;
        }

        .dividend-chart-toggle {
            display: flex;
            gap: 8px;
        }

        /* Extra separation (beyond the header's base gap) so the two toggle
           groups read as distinct controls rather than one row of four buttons. */
        .period-toggle {
            padding-left: 20px;
            border-left: 1px solid var(--border);
        }

        /* Same look/feel as .nav-button (the main Stock Screener/Optimizer/etc.
           tabs), scaled down to fit inline with the chart title. */
        .chart-toggle-btn {
            padding: 6px 16px;
            background: var(--bg-secondary);
            color: var(--text-primary);
            border: 1px solid var(--border);
            border-radius: 6px;
            cursor: pointer;
            font-family: 'JetBrains Mono', monospace;
            font-weight: 600;
            font-size: 0.7rem;
            letter-spacing: 0.03em;
            transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
        }

        .chart-toggle-btn:hover {
            background: var(--bg-tertiary);
            border-color: var(--accent-cyan);
            transform: translateY(-2px);
        }

        .chart-toggle-btn.active {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
            color: var(--bg-primary);
            border-color: transparent;
        }

        .chart-wrapper {
            position: relative;
            height: 400px;
            width: 100%;
            min-width: 0;
        }

        #dividendChart {
            max-height: 400px;
        }

        .split-adjusted-note {
            color: var(--text-secondary);
            font-size: 0.8rem;
            font-style: italic;
            text-align: center;
            margin-top: 12px;
        }

        /* Animations */
        @keyframes fadeIn {
            from {
                opacity: 0;
            }
            to {
                opacity: 1;
            }
        }

        @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);
            }
        }

        /* Shared entrance animation for the four main section views (Stock Screener,
           Dividend Optimizer, Glossary, FAQ) so switching between them feels consistent */
        @keyframes viewFadeIn {
            from {
                opacity: 0;
                transform: translateY(10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Scrollbar styling */
        .table-container::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }

        .table-container::-webkit-scrollbar-track {
            background: var(--bg-primary);
        }

        .table-container::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 4px;
        }

        .table-container::-webkit-scrollbar-thumb:hover {
            background: var(--accent-cyan);
        }

        .hidden {
            display: none !important;
        }

        /* Loading indicator — visible by default (before any JS runs) while
           the initial /api/stocks fetch (occasionally 1-2s, e.g. on an edge
           cache miss) is in flight; hidden once loadDefaultDataset() resolves. */
        .loading-indicator {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 16px;
            padding: 80px 20px;
            color: var(--text-secondary);
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.9rem;
        }

        .loading-spinner {
            width: 32px;
            height: 32px;
            border: 3px solid var(--border);
            border-top-color: var(--accent-cyan);
            border-radius: 50%;
            animation: loading-spin 0.8s linear infinite;
        }

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

        /* Chart loading indicator — overlays .chart-wrapper (position:
           relative, fixed 400px height) while showDetail()'s per-ticker
           history fetch is in flight, so switching tickers doesn't leave
           the previous ticker's chart lingering during the fetch. */
        .chart-loading-indicator {
            position: absolute;
            inset: 0;
            padding: 0;
            background: var(--bg-secondary);
            z-index: 1;
        }

        /* Login modal */
        .login-modal {
            position: fixed;
            inset: 0;
            z-index: 1000;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .login-modal-backdrop {
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
        }

        .login-modal-box {
            position: relative;
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 32px;
            width: 90%;
            max-width: 380px;
            box-sizing: border-box;
        }

        .login-modal-close {
            position: absolute;
            top: 12px;
            right: 12px;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.4rem;
            line-height: 1;
            cursor: pointer;
        }

        .login-modal-title {
            font-family: 'JetBrains Mono', monospace;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .login-modal-subtitle {
            font-size: 0.85rem;
            color: var(--text-secondary, var(--text-primary));
            margin-bottom: 20px;
            line-height: 1.4;
        }

        .login-modal-input {
            background: var(--bg-primary);
            border: 1px solid var(--border);
            border-radius: 6px;
            padding: 10px 12px;
            color: var(--text-primary);
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.85rem;
            width: 100%;
            box-sizing: border-box;
            margin-bottom: 12px;
        }

        .login-modal-input:focus {
            outline: none;
            border-color: var(--accent-cyan);
            box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.1);
        }

        .login-modal-submit {
            width: 100%;
            padding: 10px 24px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
            color: var(--bg-primary);
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-family: 'JetBrains Mono', monospace;
            font-weight: 600;
            font-size: 0.85rem;
        }

        .login-modal-status {
            margin-top: 12px;
            font-size: 0.8rem;
            color: var(--text-secondary, var(--text-primary));
            min-height: 1em;
        }

        /* Onboarding tutorial */
        .tutorial-overlay {
            display: none;
        }

        .tutorial-dim {
            position: fixed;
            background: rgba(0, 0, 0, 0.75);
            z-index: 9999;
            transition: all 0.3s ease;
        }

        .tutorial-spotlight {
            position: fixed;
            z-index: 10000;
            border: 2px solid var(--accent-cyan);
            border-radius: 10px;
            box-shadow: 0 0 30px var(--shadow);
            pointer-events: none;
            transition: all 0.3s ease;
        }

        .tutorial-box {
            display: none;
            position: fixed;
            z-index: 10001;
            width: 280px;
            background: var(--bg-secondary);
            border: 1px solid var(--accent-cyan);
            border-radius: 10px;
            padding: 18px 20px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.6);
        }

        /* Small triangular tail, anchored to the box itself so it always points at
           whatever corner the box is pinned to — no separate positioning needed. */
        .tutorial-box::after {
            content: '';
            position: absolute;
            bottom: -9px;
            left: var(--tutorial-tail-left, 234px);
            width: 0;
            height: 0;
            border-left: 9px solid transparent;
            border-right: 9px solid transparent;
            border-top: 9px solid var(--accent-cyan);
            animation: tutorialBounce 1.2s ease-in-out infinite;
        }

        .tutorial-close {
            position: absolute;
            top: 6px;
            right: 10px;
            background: none;
            border: none;
            color: var(--text-secondary);
            font-size: 1.3rem;
            font-family: 'JetBrains Mono', monospace;
            cursor: pointer;
            line-height: 1;
            transition: color 0.2s ease;
        }

        .tutorial-close:hover {
            color: var(--text-primary);
        }

        .tutorial-message {
            color: var(--text-primary);
            font-size: 0.9rem;
            line-height: 1.5;
            padding-right: 14px;
            margin-bottom: 14px;
        }

        .tutorial-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .tutorial-skip {
            color: var(--text-secondary);
            font-size: 0.75rem;
            text-decoration: underline;
            cursor: pointer;
            transition: color 0.2s ease;
        }

        .tutorial-skip:hover {
            color: var(--accent-cyan);
        }

        .tutorial-nav-buttons {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .tutorial-prev {
            visibility: hidden;
            color: var(--text-secondary);
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            white-space: nowrap;
            transition: color 0.2s ease;
        }

        .tutorial-prev:hover {
            color: var(--accent-cyan);
        }

        .tutorial-next {
            color: var(--accent-amber);
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            white-space: nowrap;
            transition: color 0.2s ease;
        }

        .tutorial-next:hover {
            color: var(--accent-green);
        }

        @keyframes tutorialBounce {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-8px);
            }
        }

        /* Site footer */
        .site-footer {
            position: relative;
            z-index: 1;
            margin-top: 60px;
            padding: 24px 20px;
            border-top: 1px solid var(--border);
            text-align: center;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 12px;
        }

        .footer-links a {
            color: var(--text-secondary);
            font-size: 0.8rem;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .footer-links a:hover {
            color: var(--accent-cyan);
        }

        .footer-note {
            color: var(--text-secondary);
            font-size: 0.72rem;
            max-width: 640px;
            margin: 0 auto 8px;
            line-height: 1.6;
        }

        .table-disclaimer {
            text-align: center;
            margin-top: 16px;
        }

        .footer-copyright {
            color: var(--text-secondary);
            font-size: 0.72rem;
            opacity: 0.7;
        }

        /* Legal pages (Terms / Privacy / Disclaimer) */
        .legal-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 40px;
        }

        .legal-header .home-title-row {
            gap: 10px;
        }

        .legal-header h1 {
            font-size: 1.8rem;
            margin-bottom: 0;
        }

        .legal-header a {
            text-decoration: none;
        }

        .legal-back {
            color: var(--text-secondary);
            font-size: 0.85rem;
            text-decoration: none;
            transition: color 0.2s ease;
            white-space: nowrap;
        }

        .legal-back:hover {
            color: var(--accent-cyan);
        }

        .legal-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .legal-updated {
            color: var(--text-secondary);
            font-size: 0.8rem;
            margin-bottom: 32px;
        }

        .legal-content h2 {
            color: var(--accent-cyan);
            font-size: 1.1rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin: 36px 0 12px;
        }

        .legal-content h2:first-of-type {
            margin-top: 0;
        }

        .legal-content p {
            color: var(--text-primary);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .legal-content ul {
            margin: 0 0 14px 20px;
            color: var(--text-primary);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .legal-content li {
            margin-bottom: 6px;
        }

        .legal-content strong {
            color: var(--accent-amber);
        }

        .legal-callout {
            background: var(--bg-secondary);
            border: 1px solid var(--accent-amber);
            border-radius: 8px;
            padding: 16px 20px;
            margin-bottom: 32px;
            color: var(--text-primary);
            font-size: 0.85rem;
            line-height: 1.6;
        }

        /* Dev-only Free/Premium debug toggle — only ever injected on localhost/file://,
           see initDevPremiumToggle() in app.js */
        .dev-premium-toggle {
            position: fixed;
            bottom: 16px;
            right: 16px;
            z-index: 99999;
            padding: 8px 14px;
            background: var(--bg-secondary);
            color: var(--accent-cyan);
            border: 1px solid var(--accent-cyan);
            border-radius: 20px;
            font-family: 'JetBrains Mono', monospace;
            font-weight: 600;
            font-size: 0.75rem;
            cursor: pointer;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
            transition: all 0.2s ease;
        }

        .dev-premium-toggle:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.6);
        }

        .dev-premium-toggle.is-premium {
            color: var(--accent-amber);
            border-color: var(--accent-amber);
        }