/* age.css — extracted verbatim from age.html's original inline <style>; logic/behavior unchanged, only relocated */
/* ==========================================================================
           1. DESIGN SYSTEM & VARIABLES (Synced with Suite Ecosystem)
           ========================================================================== */
        :root {
            --font-main: 'Plus Jakarta Sans', sans-serif;
            --transition-speed: 0.4s;
            --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
            
            --bg-gradient: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
            --calc-bg: #ffffff;
            --calc-border: rgba(15, 23, 42, 0.06);
            --calc-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.04);
            --text-main: #0f172a;
            --text-secondary: #64748b;
            
            --input-bg: rgba(241, 245, 249, 0.8);
            --accent-glow: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
            --accent-color: #6366f1; /* Chronos Purple Theme Accent */
            --accent-hover: #4f46e5;
            --panel-bg: #ffffff;
            --scrollbar-thumb: rgba(15, 23, 42, 0.15);
            --danger: #f43f5e;
            --success: #10b981;
        }

        body.dark-mode {
            --bg-gradient: linear-gradient(135deg, #020617 0%, #0f172a 100%);
            --calc-bg: rgba(15, 23, 42, 0.6);
            --calc-border: rgba(255, 255, 255, 0.06);
            --calc-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
            --text-main: #f8fafc;
            --text-secondary: #94a3b8;
            
            --input-bg: rgba(30, 41, 59, 0.5);
            --accent-color: #818cf8;
            --accent-hover: #6366f1;
            --panel-bg: rgba(15, 23, 42, 0.95);
            --scrollbar-thumb: rgba(255, 255, 255, 0.1);
        }

        /* ==========================================================================
           2. GLOBAL STYLES & RESET
           ========================================================================== */
        * { box-sizing: border-box; margin: 0; padding: 0; user-select: none; -webkit-user-select: none; }
        body {
            font-family: var(--font-main); background: var(--bg-gradient); min-height: 100vh;
            display: flex; justify-content: center; align-items: center; padding: 20px;
            color: var(--text-main); transition: background var(--transition-speed) ease, color var(--transition-speed) ease;
            overflow-x: hidden; position: relative;
        }
        body::before {
            content: ''; position: absolute; width: 400px; height: 400px; border-radius: 50%;
            filter: blur(150px); opacity: 0.12; z-index: -1; top: -10%; left: -10%; background: #6366f1;
        }

        /* ==========================================================================
           3. CONTAINER & FIXED VIEWPORTS
           ========================================================================== */
        .calc-container {
            position: relative; width: 100%; max-width: 900px; 
            height: calc(100vh - 40px);
            background: var(--calc-bg); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--calc-border); border-radius: 28px; box-shadow: var(--calc-shadow);
            display: flex; flex-direction: column; overflow: hidden; transition: var(--transition-smooth);
        }
        .calc-header {
            display: flex; justify-content: space-between; align-items: center;
            padding: 20px 24px 14px 24px; z-index: 10; flex-shrink: 0; border-bottom: 1px solid var(--calc-border);
        }
        .calc-title { font-family: 'Space Grotesk', sans-serif; font-size: 1.25rem; font-weight: 700; letter-spacing: -0.5px; }
        .header-controls { display: flex; gap: 10px; align-items: center; }
        
        .icon-btn {
            background: var(--input-bg); border: 1px solid var(--calc-border);
            width: 38px; height: 38px; border-radius: 12px; cursor: pointer;
            display: flex; justify-content: center; align-items: center;
            color: var(--text-main); transition: var(--transition-smooth);
        }
        .icon-btn:hover { transform: scale(1.05); border-color: var(--accent-color); }
        .icon-btn:active { transform: scale(0.95); }
        .icon-btn svg { width: 18px; height: 18px; fill: currentColor; }

        .theme-btn .sun-icon, body.dark-mode .theme-btn .moon-icon { display: none; }
        body.dark-mode .theme-btn .sun-icon { display: block; }

        /* Workspace Scroller Box Frame */
        .calc-body-workspace {
            padding: 20px 24px 24px 24px; flex-grow: 1; display: flex;
            flex-direction: column; overflow-y: auto; gap: 20px;
        }
        .calc-body-workspace::-webkit-scrollbar { width: 5px; }
        .calc-body-workspace::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 10px; }

        /* Layout Framework Nodes */
        .mode-toggle-container { display: flex; justify-content: center; margin-bottom: 10px; }
        .toggle-box { background: var(--input-bg); padding: 5px; border-radius: 14px; border: 1px solid var(--calc-border); display: flex; gap: 4px; }
        .toggle-btn { padding: 10px 20px; border-radius: 10px; border: none; background: transparent; color: var(--text-secondary); font-size: 0.9rem; font-weight: 600; cursor: pointer; transition: var(--transition-smooth); }
        .toggle-btn.active { background: var(--accent-glow); color: #ffffff; box-shadow: 0 4px 12px rgba(168, 85, 247, 0.25); }

        .grid-inputs { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
        .form-group-item { display: flex; flex-direction: column; gap: 6px; }
        label { font-size: 0.8rem; font-weight: 700; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.3px; display: flex; align-items: center; gap: 6px; }
        label i { color: var(--accent-color); }

        input[type="date"], input[type="text"], select {
            width: 100%; background: var(--input-bg); border: 1px solid var(--calc-border);
            padding: 12px 14px; border-radius: 12px; font-family: var(--font-main);
            font-size: 0.95rem; font-weight: 600; color: var(--text-main); outline: none;
            transition: var(--transition-smooth); -webkit-user-select: text; user-select: text;
        }
        input:focus, select:focus { border-color: var(--accent-color); background: var(--calc-bg); }
        input.error-border { border-color: var(--danger) !important; box-shadow: 0 0 0 3px rgba(244, 63, 94, 0.15) !important; }

        .btn-panel { display: flex; gap: 12px; }
        .action-btn { flex: 1; padding: 14px; border: none; border-radius: 12px; font-size: 0.95rem; font-weight: 700; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 8px; transition: var(--transition-smooth); }
        .btn-calc { background: var(--accent-glow); color: #ffffff; box-shadow: 0 4px 14px rgba(99, 102, 241, 0.25); }
        .btn-calc:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(99, 102, 241, 0.35); }
        .btn-reset { background: rgba(255,255,255,0.03); color: var(--text-main); border: 1px solid var(--calc-border); }
        .btn-reset:hover { background: var(--input-bg); }

        /* Output Card Frames */
        .view-section { display: none; opacity: 0; transform: translateY(10px); transition: var(--transition-smooth); }
        .view-section.active { display: flex; flex-direction: column; gap: 20px; opacity: 1; transform: translateY(0); }

        .hero-metric-card {
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.06) 0%, rgba(236, 72, 153, 0.04) 100%);
            border: 1px solid var(--calc-border); border-radius: 20px; padding: 25px; text-align: center; position: relative;
        }
        .hero-numbers { display: flex; justify-content: center; gap: 30px; flex-wrap: wrap; margin-top: 10px; }
        .num-box h2 { font-family: 'Space Grotesk', sans-serif; font-size: 2.8rem; font-weight: 700; line-height: 1; }
        .num-box p { font-size: 0.78rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px; margin-top: 4px; font-weight: 700; }

        .section-headline { font-family: 'Space Grotesk', sans-serif; font-size: 1.05rem; font-weight: 700; display: flex; align-items: center; gap: 8px; text-transform: uppercase; letter-spacing: 0.5px; }
        .section-headline i { color: var(--secondary); }

        .split-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
        .glass-card { background: var(--input-bg); border: 1px solid var(--calc-border); border-radius: 16px; padding: 20px; display: flex; flex-direction: column; gap: 10px; }
        
        .card-title-bar { display: flex; align-items: center; gap: 10px; border-bottom: 1px dashed var(--calc-border); padding-bottom: 8px; margin-bottom: 4px; }
        .card-title-bar i { color: var(--accent-color); font-size: 1.1rem; }
        .card-title-bar h3 { font-size: 0.95rem; font-weight: 700; }

        .data-row { display: flex; justify-content: space-between; align-items: center; font-size: 0.92rem; padding: 4px 0; }
        .data-label { color: var(--text-secondary); font-weight: 500; }
        .data-val { font-weight: 700; color: var(--text-main); }
        .ticker-highlight { color: var(--accent-color) !important; font-family: 'Space Grotesk', monospace; }

        /* Premium Countdown Segments */
        .premium-countdown-container { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; width: 100%; }
        .countdown-segment-card { background: var(--calc-bg); border: 1px solid var(--calc-border); border-radius: 12px; padding: 10px 4px; text-align: center; }
        .countdown-val { font-family: 'Space Grotesk', sans-serif; font-size: 1.5rem; font-weight: 700; display: block; }
        .countdown-lbl { font-size: 0.7rem; text-transform: uppercase; color: var(--text-secondary); font-weight: 600; }
        .countdown-segment-card.warning-glow { border-color: #f59e0b; }
        .countdown-segment-card.danger-glow { border-color: var(--danger); }

        /* Macro Progress Trax */
        .progress-meta { display: flex; justify-content: space-between; font-size: 0.9rem; font-weight: 600; }
        .progress-track-wrapper { background: rgba(0,0,0,0.06); border-radius: 50px; height: 10px; width: 100%; overflow: hidden; position: relative; }
        body.dark-mode .progress-track-wrapper { background: rgba(255,255,255,0.05); }
        .progress-bar-fill { background: var(--accent-glow); height: 100%; width: 0%; border-radius: 50px; transition: width 1s cubic-bezier(0.4, 0, 0.2, 1); }

        .profile-badges-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 10px; }
        .profile-tile { background: var(--input-bg); border: 1px solid var(--calc-border); border-radius: 14px; padding: 12px; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 4px; }
        .profile-tile i { font-size: 1.1rem; color: var(--accent-color); }
        .profile-tile .tile-label { font-size: 0.7rem; text-transform: uppercase; color: var(--text-secondary); font-weight: 700; }
        .profile-tile .tile-value { font-size: 0.92rem; font-weight: 700; font-family: 'Space Grotesk', sans-serif; }

        /* Share Cards & Wraps */
        .share-composer-card { background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%); border: 1px solid rgba(255,255,255,0.1); border-radius: 20px; padding: 20px; color: #ffffff; text-align: left; }
        .wrapped-logo { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 0.75rem; letter-spacing: 2px; color: #818cf8; margin-bottom: 10px; }
        .wrapped-title { font-size: 1.2rem; font-weight: 800; line-height: 1.3; margin-bottom: 14px; }
        .wrapped-title span { background: var(--accent-glow); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
        .wrapped-stat-item { border-left: 2px solid #c084fc; padding-left: 10px; margin-bottom: 10px; }
        .wrapped-stat-lbl { font-size: 0.7srem; text-transform: uppercase; color: #94a3b8; }
        .wrapped-stat-val { font-family: 'Space Grotesk', sans-serif; font-size: 1.15rem; font-weight: 700; }
        .share-btn-row { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }
        .share-action-trigger { flex: 1; padding: 10px; border-radius: 10px; border: none; font-weight: 700; font-size: 0.8rem; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 6px; color: white; background: rgba(255,255,255,0.1); }
        .share-action-trigger.download-trigger { background: var(--accent-glow); }

        /* Comparison Node Frames */
        .gap-verdict-banner { background: linear-gradient(135deg, rgba(168, 85, 247, 0.08) 0%, rgba(236, 72, 153, 0.05) 100%); border: 1px dashed rgba(168, 85, 247, 0.3); border-radius: 16px; padding: 16px; text-align: center; }
        .gap-verdict-banner h4 { font-size: 0.8rem; text-transform: uppercase; color: var(--text-secondary); margin-bottom: 4px; letter-spacing: 1px; }
        .gap-verdict-banner p { font-family: 'Space Grotesk', sans-serif; font-size: 1.25rem; font-weight: 600; }

        .person-hero-card { background: var(--input-bg); border: 1px solid var(--calc-border); border-radius: 16px; padding: 16px; text-align: center; }
        .person-hero-card.lead-card { border-color: rgba(129, 140, 248, 0.4); background: linear-gradient(135deg, rgba(129, 140, 248, 0.05) 0%, transparent 100%); }
        .p-name { font-size: 0.95rem; font-weight: 700; color: var(--accent-color); margin-bottom: 6px; text-transform: uppercase; }
        .p-age-string { font-size: 1rem; font-weight: 600; }

        .gap-metric-bar-group { margin-bottom: 12px; }
        .gap-bar-label { display: flex; justify-content: space-between; font-size: 0.85rem; font-weight: 600; margin-bottom: 4px; }
        .gap-bar-track { background: rgba(0,0,0,0.06); height: 8px; border-radius: 10px; overflow: hidden; }
        body.dark-mode .gap-bar-track { background: rgba(255,255,255,0.05); }
        .gap-bar-fill-indicator { height: 100%; border-radius: 10px; width: 0%; transition: width 1s cubic-bezier(0.4, 0, 0.2, 1); }

        .battle-comparison-table { width: 100%; border-collapse: collapse; }
        .battle-comparison-table th { text-align: left; padding: 10px; font-size: 0.75rem; text-transform: uppercase; color: var(--text-secondary); border-bottom: 1px solid var(--calc-border); }
        .battle-comparison-table td { padding: 12px 10px; border-bottom: 1px solid var(--calc-border); font-size: 0.9rem; }
        .battle-row-title { font-weight: 600; color: var(--text-main); }
        .winner-badge-pill { inline-flex: 1; align-items: center; gap: 4px; background: rgba(16, 185, 129, 0.12); color: #10b981; padding: 2px 8px; border-radius: 50px; font-size: 0.7rem; font-weight: 700; margin-left: 4px; }

        /* Timeline Lane Component */
        .timeline-track-lane { position: relative; padding: 15px 0; margin-top: 10px; width: 100%; }
        .timeline-base-line { position: absolute; top: 50%; left: 0; right: 0; height: 4px; background: rgba(0,0,0,0.06); transform: translateY(-50%); border-radius: 2px; }
        body.dark-mode .timeline-base-line { background: rgba(255,255,255,0.05); }
        .timeline-progress-segment { position: absolute; top: 50%; height: 4px; transform: translateY(-50%); border-radius: 4px; }
        .timeline-node-pin { position: absolute; top: 50%; width: 12px; height: 12px; border-radius: 50%; transform: translate(-50%, -50%); }
        .timeline-node-pin span { position: absolute; top: -16px; transform: translateX(-50%); font-size: 0.7rem; font-weight: 700; white-space: nowrap; }

        .copy-floating-btn { position: absolute; top: 12px; right: 12px; background: transparent; border: none; color: var(--text-secondary); width: 32px; height: 38px; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: var(--transition-smooth); }
        .copy-floating-btn:hover { color: var(--accent-color); transform: scale(1.05); }

        /* Slidout History Panel Architecture */
        .history-panel {
            position: absolute; top: 0; right: -100%; width: 100%; max-width: 380px; height: 100%;
            background: var(--panel-bg); backdrop-filter: blur(25px); -webkit-backdrop-filter: blur(25px);
            z-index: 100; transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1); display: flex; flex-direction: column;
            border-left: 1px solid var(--calc-border);
        }
        .history-panel.open { right: 0; }
        .history-header { display: flex; justify-content: space-between; align-items: center; padding: 24px; border-bottom: 1px solid var(--calc-border); }
        .history-title { font-family: 'Space Grotesk', sans-serif; font-size: 1.2rem; font-weight: 700; }
        .history-list { flex-grow: 1; overflow-y: auto; padding: 20px 24px; display: flex; flex-direction: column; gap: 12px; }
        .history-item { text-align: left; padding: 12px 14px; border-radius: 14px; background: var(--input-bg); border: 1px solid var(--calc-border); cursor: pointer; transition: var(--transition-smooth); display: flex; justify-content: space-between; align-items: center; }
        .history-item:hover { border-color: var(--accent-color); transform: translateY(-1px); }
        .hist-type { font-size: 0.75rem; font-weight: 700; color: var(--accent-color); text-transform: uppercase; }
        .hist-expr { font-size: 0.85rem; color: var(--text-secondary); margin: 2px 0; }
        .hist-res { font-family: 'Space Grotesk', sans-serif; font-size: 1.05rem; font-weight: 700; }
        .history-footer { padding: 16px 24px; border-top: 1px solid var(--calc-border); display: flex; justify-content: flex-end; }
        .clear-hist-btn { background: transparent; border: none; color: var(--accent-color); font-size: 0.9rem; font-weight: 700; cursor: pointer; }

        /* Toast Alert */
        .toast {
            position: fixed; bottom: 35px; left: 50%; transform: translate(-50%, 40px);
            background: var(--success); color: #ffffff; padding: 12px 24px; border-radius: 50px;
            font-size: 0.85rem; font-weight: 600; opacity: 0; pointer-events: none;
            transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease; z-index: 9999;
            box-shadow: 0 10px 25px rgba(16, 185, 129, 0.2); display: flex; align-items: center; gap: 8px;
        }
        .toast.show { transform: translate(-50%, 0); opacity: 1; }

        @media(max-width: 768px) {
            .calc-container { height: 100vh; max-height: 100vh; border-radius: 0; border: none; }
            body { padding: 0; }
            .grid-inputs { grid-template-columns: 1fr; gap: 12px; }
            .btn-panel { flex-direction: column; gap: 10px; }
            .split-columns { grid-template-columns: 1fr; gap: 14px; }
            .premium-countdown-container { grid-template-columns: repeat(2, 1fr); }
            .profile-badges-grid { grid-template-columns: repeat(2, 1fr); }
        }