:root {
            --bg: #0b0f14;
            --bg-2: #0f1720;
            --text: #e7edf3;
            --text-secondary: #9aa7b5;
            --panel: rgba(16, 24, 32, 0.86);
            --panel-strong: #141c24;
            --border: rgba(255, 255, 255, 0.08);
            --chip: rgba(255, 255, 255, 0.05);
            --input-bg: rgba(8, 12, 18, 0.6);
            --input-border: rgba(255, 255, 255, 0.12);
            --btn-bg: rgba(255, 255, 255, 0.08);
            --btn-hover: rgba(255, 255, 255, 0.14);
            --accent: #6cf1b5;
            --accent-strong: #2bd98b;
            --accent-text: #05140d;
            --up: #28e070;
            --down: #ff5d6e;
            --muted: #6c7a88;
            --glow: 0 24px 60px rgba(44, 255, 178, 0.12);
            --header-bg: rgba(10, 14, 20, 0.82);
            --header-bg-2: rgba(10, 14, 20, 0.2);
            --noise-dot: rgba(255, 255, 255, 0.04);
            --fab-size: 56px;
            --fab-bg: #0b131b;
            --fab-ink: #eafbf5;
            --fab-ring: rgba(108, 241, 181, 0.55);
            --fab-shadow: 0 18px 32px rgba(0, 0, 0, 0.35), 0 0 0 6px rgba(108, 241, 181, 0.12);
            --fab-shadow-hover: 0 24px 40px rgba(0, 0, 0, 0.38), 0 0 0 8px rgba(108, 241, 181, 0.18);
            --ema: #f8cc58;
            --chart-bg: #0f1720;
            --chart-grid: rgba(148, 163, 184, 0.12);
            --chart-border: rgba(255, 255, 255, 0.1);
            --chart-text: #97a3b1;
            --vol-up: rgba(40, 224, 112, 0.3);
            --vol-down: rgba(255, 93, 110, 0.3);
        }
        @media (prefers-color-scheme: light) {
            :root {
                --bg: #f1f4f7;
                --bg-2: #ffffff;
                --text: #0d141b;
                --text-secondary: #586271;
                --panel: rgba(255, 255, 255, 0.9);
                --panel-strong: #ffffff;
                --border: rgba(15, 23, 42, 0.08);
                --chip: rgba(15, 23, 42, 0.05);
                --input-bg: #ffffff;
                --input-border: rgba(15, 23, 42, 0.12);
                --btn-bg: rgba(15, 23, 42, 0.06);
                --btn-hover: rgba(15, 23, 42, 0.12);
                --accent: #1aa168;
                --accent-strong: #148557;
                --accent-text: #ffffff;
                --up: #16a34a;
                --down: #dc2626;
                --muted: #8792a3;
                --glow: 0 22px 50px rgba(16, 150, 99, 0.15);
                --header-bg: rgba(255, 255, 255, 0.78);
                --header-bg-2: rgba(255, 255, 255, 0.2);
                --noise-dot: rgba(15, 23, 42, 0.04);
                --fab-bg: #ffffff;
                --fab-ink: #0f172a;
                --fab-ring: rgba(26, 161, 104, 0.4);
                --fab-shadow: 0 16px 26px rgba(15, 23, 42, 0.16), 0 0 0 6px rgba(26, 161, 104, 0.08);
                --fab-shadow-hover: 0 22px 34px rgba(15, 23, 42, 0.2), 0 0 0 8px rgba(26, 161, 104, 0.14);
                --ema: #b7791f;
                --chart-bg: #ffffff;
                --chart-grid: rgba(15, 23, 42, 0.08);
                --chart-border: rgba(15, 23, 42, 0.08);
                --chart-text: #5b6574;
                --vol-up: rgba(22, 163, 74, 0.25);
                --vol-down: rgba(220, 38, 38, 0.25);
            }
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html {
            background: var(--bg);
            color: var(--text);
        }
        body {
            font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
            background: radial-gradient(1200px 600px at 10% -10%, rgba(76, 255, 195, 0.08), transparent 60%),
                        radial-gradient(900px 500px at 90% -10%, rgba(44, 201, 255, 0.08), transparent 50%),
                        linear-gradient(180deg, var(--bg), var(--bg-2));
            background-color: var(--bg);
            color: var(--text);
            min-height: 100vh;
            position: relative;
        }
        body::before {
            content: "";
            position: fixed;
            inset: -20%;
            background: radial-gradient(600px 600px at 15% 20%, rgba(108, 241, 181, 0.15), transparent 60%),
                        radial-gradient(700px 700px at 85% 10%, rgba(56, 189, 248, 0.12), transparent 65%);
            filter: blur(10px);
            z-index: -2;
            opacity: 0.7;
        }
        body::after {
            content: "";
            position: fixed;
            inset: 0;
            background-image: radial-gradient(var(--noise-dot) 1px, transparent 1px);
            background-size: 3px 3px;
            opacity: 0.2;
            pointer-events: none;
            z-index: -1;
        }
        ::selection { background: rgba(108, 241, 181, 0.25); }

        .header {
            position: sticky;
            top: 0;
            z-index: 20;
            backdrop-filter: blur(14px);
            background: linear-gradient(180deg, var(--header-bg), var(--header-bg-2));
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 18px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .title-block { display: flex; flex-direction: column; gap: 6px; }
        .eyebrow {
            font-size: 11px;
            letter-spacing: 0.28em;
            text-transform: uppercase;
            color: var(--text-secondary);
        }
        .header h1 {
            font-family: "Space Grotesk", "IBM Plex Sans", sans-serif;
            font-size: 26px;
            font-weight: 600;
            color: var(--text);
        }
        .subtitle {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: flex-end;
        }
        .market-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: var(--chip);
        }
        .market-link {
            padding: 8px 14px;
            border-radius: 999px;
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.04em;
            transition: background 0.2s ease, color 0.2s ease;
        }
        .market-link:hover {
            background: var(--btn-hover);
            color: var(--text);
        }
        .market-link.active {
            background: var(--accent);
            color: var(--accent-text);
        }
        .status {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 14px;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: var(--chip);
            font-size: 12px;
            color: var(--text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.08em;
        }
        .status .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 12px var(--accent);
            animation: pulse 1.8s ease-in-out infinite;
        }

        .shell {
            max-width: 1200px;
            margin: 0 auto;
            padding: 18px 20px 28px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .price-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
            gap: 12px;
        }
        .price-card {
            position: relative;
            background: var(--panel);
            border-radius: 14px;
            padding: 16px 18px;
            cursor: pointer;
            border: 1px solid var(--border);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.18);
            transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
            backdrop-filter: blur(8px);
        }
        .price-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--glow);
        }
        .price-card.active {
            border-color: var(--accent);
            box-shadow: 0 0 0 1px rgba(108, 241, 181, 0.4) inset, var(--glow);
        }
        .price-card .symbol {
            font-size: 12px;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }
        .price-card .price {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 6px;
            font-variant-numeric: tabular-nums;
        }
        .price-card .change { font-size: 13px; font-weight: 600; }
        .change.up { color: var(--up); }
        .change.down { color: var(--down); }
        .price-card .remove-btn {
            position: absolute;
            top: 8px;
            right: 10px;
            background: none;
            border: none;
            color: var(--muted);
            font-size: 16px;
            cursor: pointer;
            display: none;
            line-height: 1;
        }
        .price-card .remove-btn:hover { color: var(--down); }
        .price-card.custom .remove-btn { display: block; }

        .fab-widget {
            position: fixed;
            right: 26px;
            bottom: 120px;
            z-index: 80;
            width: var(--fab-size);
            height: var(--fab-size);
            user-select: none;
        }
        .fab-widget.dragging .fab { cursor: grabbing; }
        .fab-widget.open { z-index: 90; }
        .fab-panel {
            position: absolute;
            right: 0;
            bottom: calc(100% + 10px);
            width: min(340px, 88vw);
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 14px;
            box-shadow: 0 18px 45px rgba(0, 0, 0, 0.25);
            backdrop-filter: blur(8px);
            opacity: 0;
            transform: translateY(10px) scale(0.98);
            pointer-events: none;
            transition: opacity 0.2s ease, transform 0.2s ease;
            transform-origin: right bottom;
        }
        .fab-widget.docked-left .fab-panel {
            left: 0;
            right: auto;
            transform-origin: left bottom;
        }
        .fab-widget.docked-right .fab-panel {
            right: 0;
            left: auto;
        }
        .fab-widget.open .fab-panel {
            opacity: 1;
            transform: translateY(0) scale(1);
            pointer-events: auto;
        }
        .fab-panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 11px;
            letter-spacing: 0.22em;
            text-transform: uppercase;
            color: var(--text-secondary);
            margin-bottom: 10px;
        }
        .fab-close {
            background: none;
            border: none;
            color: var(--muted);
            font-size: 18px;
            cursor: pointer;
        }
        .fab-panel-body {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .fab-input {
            flex: 1;
            background: var(--input-bg);
            border: 1px solid var(--input-border);
            border-radius: 12px;
            color: var(--text);
            padding: 10px 14px;
            font-size: 13px;
            outline: none;
            text-transform: uppercase;
            font-family: inherit;
            user-select: text;
        }
        .fab-input::placeholder { color: var(--muted); }
        .fab-input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(108, 241, 181, 0.18);
        }
        .fab-add {
            background: var(--accent);
            color: var(--accent-text);
            border: none;
            border-radius: 999px;
            padding: 10px 16px;
            font-size: 12px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
        }
        .fab-add:hover {
            background: var(--accent-strong);
            transform: translateY(-1px);
            box-shadow: 0 10px 24px rgba(43, 217, 139, 0.25);
        }
        #customHint {
            margin-top: 8px;
            font-size: 12px;
            color: var(--muted);
            padding-left: 2px;
        }
        #customHint.error { color: var(--down); }
        #customHint.hint { color: var(--muted); }

        .fab {
            position: relative;
            width: var(--fab-size);
            height: var(--fab-size);
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.12);
            background:
                radial-gradient(120% 120% at 28% 20%, rgba(255, 255, 255, 0.35), transparent 48%),
                radial-gradient(120% 120% at 70% 85%, rgba(0, 0, 0, 0.28), transparent 55%),
                linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0)),
                var(--fab-bg);
            color: var(--fab-ink);
            font-size: 24px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: grab;
            box-shadow: var(--fab-shadow);
            transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
            touch-action: none;
        }
        .fab::before {
            content: "";
            position: absolute;
            inset: 5px;
            border-radius: 50%;
            border: 1px solid var(--fab-ring);
            opacity: 0.85;
        }
        .fab::after {
            content: "";
            position: absolute;
            inset: 10px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.35), transparent 60%);
            opacity: 0.5;
        }
        .fab-icon {
            position: relative;
            z-index: 1;
            font-family: "Space Grotesk", "IBM Plex Sans", sans-serif;
            font-size: 22px;
        }
        .fab:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: var(--fab-shadow-hover);
            filter: brightness(1.03);
        }
        .fab:active { transform: translateY(0) scale(0.98); }

        .controls {
            display: inline-flex;
            align-self: flex-start;
            gap: 6px;
            padding: 6px;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: var(--panel);
        }
        .interval-btn {
            background: transparent;
            color: var(--text-secondary);
            border: none;
            border-radius: 999px;
            padding: 7px 18px;
            font-size: 12px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .interval-btn:hover { background: var(--btn-hover); color: var(--text); }
        .interval-btn.active { background: var(--accent); color: var(--accent-text); }

        .chart-container {
            position: relative;
            padding: 14px;
            border-radius: 16px;
            background: var(--panel-strong);
            border: 1px solid var(--border);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
        }
        .chart-legend {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 10;
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding: 6px 10px;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: var(--chip);
            backdrop-filter: blur(6px);
            max-width: calc(100% - 24px);
            pointer-events: none;
        }
        .chart-legend .val { color: var(--text); font-weight: 600; }
        .chart-legend .ema-val { color: var(--ema); font-weight: 700; }
        .chart-legend .chg-up { color: var(--up); font-weight: 700; }
        .chart-legend .chg-down { color: var(--down); font-weight: 700; }
        #chart {
            width: 100%;
            height: clamp(360px, 60vh, 720px);
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--chart-border);
            background: var(--chart-bg);
        }

        @media (max-width: 900px) {
            .header-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .header-actions {
                width: 100%;
                justify-content: space-between;
            }
            .controls { align-self: stretch; justify-content: center; }
        }
        @media (max-width: 640px) {
            .header h1 { font-size: 22px; }
            .price-card { padding: 14px 16px; }
            .controls { width: 100%; justify-content: space-between; }
            .interval-btn { padding: 7px 14px; }
            .market-nav {
                width: 100%;
                justify-content: space-between;
            }
            .header-actions {
                flex-direction: column;
                align-items: stretch;
            }
            :root { --fab-size: 48px; }
            .fab-widget {
                right: 16px;
                bottom: 90px;
            }
            .fab {
                font-size: 22px;
            }
            .fab-panel { width: min(300px, 92vw); }
        }
        @media (prefers-reduced-motion: reduce) {
            * { animation: none !important; transition: none !important; }
        }
        @keyframes pulse {
            0%, 100% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.2); opacity: 0.75; }
        }