:root {
    --bg-primary: #000000;
    --bg-secondary: #1C1C1E;
    --bg-card: #1C1C1E;
    --bg-tertiary: #2C2C2E;
    --border: #38383A;
    --border-subtle: #2C2C2E;
    --text-primary: #FFFFFF;
    --text-secondary: #98989D;
    --text-muted: #636366;
    --green: #30D158;
    --amber: #FF9F0A;
    --red: #FF453A;
    --blue: #0A84FF;
    --purple: #BF5AF2;
    --grid: #2C2C2E;
}

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

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 24px;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-subtle);
    position: sticky;
    top: 0;
    z-index: 100;
}

header h1 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

.header-left { display: flex; align-items: center; gap: 12px; }
.subtitle {
    color: var(--text-secondary);
    font-size: 12px;
    letter-spacing: 0.02em;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 13px;
}

.header-right select {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: none;
    border-radius: 8px;
    padding: 6px 10px;
    font-size: 13px;
    font-family: inherit;
}

#refresh-btn, #print-btn {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: none;
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s ease;
    font-family: inherit;
}

#refresh-btn:hover, #print-btn:hover {
    background: #3A3A3C;
}

#last-updated { color: var(--text-muted); font-size: 12px; }

/* Stale data warning */
#last-updated.stale { color: var(--red); animation: pulse 2s infinite; }
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Main */
main { padding: 16px 24px; max-width: 1400px; margin: 0 auto; }

/* Signal Banner */
.signal-banner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 16px;
    border-radius: 12px;
    margin-bottom: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    transition: border-color 0.3s ease;
}

.signal-banner.risk-on { border-color: var(--green); }
.signal-banner.caution { border-color: var(--amber); }
.signal-banner.risk-off { border-color: var(--red); }

.signal-score {
    font-size: 48px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.score-label { font-size: 18px; color: var(--text-secondary); }

#signal-label {
    font-size: 22px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.signal-banner.risk-on #signal-label { color: var(--green); }
.signal-banner.caution #signal-label { color: var(--amber); }
.signal-banner.risk-off #signal-label { color: var(--red); }

.signal-banner.risk-on .signal-score { color: var(--green); }
.signal-banner.caution .signal-score { color: var(--amber); }
.signal-banner.risk-off .signal-score { color: var(--red); }

/* Alerts */
.alerts-panel {
    background: rgba(255, 69, 58, 0.06);
    border: 1px solid rgba(255, 69, 58, 0.3);
    border-radius: 12px;
    padding: 12px 16px;
    margin-bottom: 16px;
}

.alerts-panel h3 { color: var(--red); font-size: 13px; font-weight: 600; margin-bottom: 8px; }
.alerts-panel.hidden { display: none; }

.alert-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 13px;
    border-bottom: 1px solid rgba(255, 69, 58, 0.12);
}

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

.alert-badge {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.alert-badge.critical { background: var(--red); color: #fff; }
.alert-badge.warning { background: var(--amber); color: #000; }

.alert-category { color: var(--text-secondary); min-width: 80px; }

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    overflow: hidden;
    transition: border-color 0.3s ease;
}

.card.glow-green { border-color: var(--green); }
.card.glow-amber { border-color: var(--amber); }
.card.glow-red { border-color: var(--red); }

.card-wide { grid-column: span 2; }

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-subtle);
    background: transparent;
}

.card-header h3 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

.card-score {
    font-size: 13px;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 8px;
    background: var(--bg-tertiary);
    border: none;
    transition: color 0.3s ease;
}

.card-body { padding: 16px; }

/* Chart containers */
.chart-container { width: 100%; height: 220px; margin-top: 10px; }

/* Data tables */
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th {
    text-align: left;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 6px 8px;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 12px;
    letter-spacing: 0.02em;
}
.data-table td { padding: 6px 8px; font-variant-numeric: tabular-nums; }
.data-table tr:hover { background: rgba(255, 255, 255, 0.03); }

.val-positive { color: var(--green); }
.val-negative { color: var(--red); }
.val-neutral { color: var(--text-secondary); }

/* Metrics */
.metric-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: 10px;
}

.metric {
    text-align: center;
    padding: 10px;
    background: var(--bg-tertiary);
    border-radius: 8px;
}

.metric-value {
    font-size: 20px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    transition: color 0.3s ease;
}

.metric-label {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Loading */
.loading-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 200;
    transition: opacity 0.3s;
}

.loading-overlay.hidden { opacity: 0; pointer-events: none; }

.spinner {
    width: 40px; height: 40px;
    border: 3px solid var(--border);
    border-top-color: #FFFFFF;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-overlay p {
    margin-top: 14px;
    color: var(--text-primary);
    font-size: 14px;
}

/* Sector bar */
.sector-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
    font-size: 13px;
}

.sector-bar .bar-fill {
    height: 12px;
    border-radius: 4px;
    min-width: 2px;
    transition: width 0.3s;
}

.sector-bar .bar-fill.positive { background: var(--green); }
.sector-bar .bar-fill.negative { background: var(--red); }
.sector-name { min-width: 50px; color: var(--text-secondary); }
.sector-val { min-width: 50px; text-align: right; font-variant-numeric: tabular-nums; }
.sector-type { font-size: 10px; padding: 2px 6px; border-radius: 6px; }
.sector-type.offensive { background: rgba(48, 209, 88, 0.1); color: var(--green); }
.sector-type.defensive { background: rgba(255, 69, 58, 0.1); color: var(--red); }

/* Sentiment gauge */
.gauge-container { text-align: center; padding: 10px; }
.gauge-value {
    font-size: 36px;
    font-weight: 600;
}
.gauge-label { font-size: 13px; color: var(--text-secondary); letter-spacing: 0.02em; }

/* Banner gauge */
.banner-gauge { width: 180px; height: 130px; flex-shrink: 0; }

/* Momentum display */
.momentum-display {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
    font-size: 13px;
}

.momentum-arrow { font-size: 14px; font-weight: 600; }
.momentum-delta { font-variant-numeric: tabular-nums; }
.momentum-trend { font-size: 11px; text-transform: capitalize; }
.momentum-positive { color: var(--green); }
.momentum-negative { color: var(--red); }
.momentum-neutral { color: var(--text-secondary); }

/* Risk level display */
.risk-level-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.risk-level-badge {
    padding: 6px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-align: center;
}

.level-normal { background: rgba(48, 209, 88, 0.15); color: var(--green); }
.level-elevated { background: rgba(255, 159, 10, 0.15); color: var(--amber); }
.level-high { background: rgba(255, 69, 58, 0.15); color: var(--red); }
.level-severe { background: rgba(255, 69, 58, 0.2); color: var(--red); border: 1px solid var(--red); }

.risk-level-action { font-size: 11px; color: var(--text-secondary); text-align: center; }
.risk-trigger { font-size: 10px; color: var(--amber); text-align: center; }

/* History controls */
.history-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.period-btn {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: none;
    border-radius: 8px;
    padding: 4px 12px;
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.period-btn:hover { background: #3A3A3C; color: var(--text-primary); }
.period-btn.active {
    background: #FFFFFF;
    color: #000000;
}

.history-controls label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    margin-left: auto;
}

.history-controls input[type="checkbox"] { cursor: pointer; }

.chart-container-tall { width: 100%; height: 300px; }

/* --- Responsive Breakpoints --- */

/* Tablet (600-900px) */
@media (max-width: 900px) {
    .dashboard-grid { grid-template-columns: repeat(2, 1fr); }
    .card-wide { grid-column: span 2; }
    .banner-gauge { width: 130px; height: 95px; }
    main { padding: 12px 16px; }
    header { padding: 12px 16px; }
    .signal-banner { padding: 14px; gap: 16px; }
    #signal-label { font-size: 18px; }
    .dashboard-grid { gap: 12px; }
}

/* Mobile (<600px) */
@media (max-width: 600px) {
    header {
        flex-direction: column;
        gap: 8px;
        padding: 10px 12px;
    }
    .header-right { flex-wrap: wrap; justify-content: center; }
    main { padding: 10px 10px; }
    .dashboard-grid { grid-template-columns: 1fr; gap: 12px; }
    .card-wide { grid-column: span 1; }
    .banner-gauge { width: 110px; height: 85px; }
    .signal-banner { flex-direction: column; gap: 10px; padding: 14px; }
    #signal-label { font-size: 16px; }
    .chart-container { height: 180px; }
    .chart-container-tall { height: 240px; }
    .metric-value { font-size: 16px; }
    .metric-grid { grid-template-columns: repeat(auto-fit, minmax(90px, 1fr)); gap: 8px; }
    .data-table { font-size: 12px; }
    .data-table th, .data-table td { padding: 4px 6px; }
}

/* --- Print Styles --- */
@media print {
    * { color-adjust: exact; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
    body { background: #fff; color: #000; }
    header { position: static; border-bottom-color: #ccc; }
    #refresh-btn, #print-btn,
    .header-right select, .header-right label,
    #loading-overlay, .history-controls { display: none !important; }
    .card { break-inside: avoid; border: 1px solid #ccc; border-radius: 0; }
    .card-header { background: #f5f5f5; }
    .card-header h3 { color: #000; }
    .card-score { background: #eee; color: #000; }
    .card-wide { grid-column: span 2; }
    .dashboard-grid { grid-template-columns: repeat(2, 1fr); }
    .chart-container { height: 180px; }
    .chart-container-tall { height: 220px; }
    .signal-banner { break-inside: avoid; border-radius: 0; }
    .loading-overlay { display: none !important; }
}