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

:root {
    --bg-primary: #0F172A;
    --bg-card: #1E293B;
    --bg-card-hover: #253349;
    --text-primary: #F1F5F9;
    --text-muted: #64748B;
    --text-dim: #475569;
    --border: #334155;
    --border-light: #3E4F6A;
    --accent: #3B82F6;
    --accent-hover: #2563EB;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --amber: #F97316;
    --radius: 8px;
    --radius-lg: 12px;
    --font: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
    --mono: 'IBM Plex Mono', 'Fira Code', monospace;
}

html { font-size: 15px; }

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ── Header ─────────────────────────────────────── */

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.back-link {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: color 0.2s;
    white-space: nowrap;
}

.back-link:hover { color: var(--text-primary); }

.header-title {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.header-right { display: flex; align-items: center; gap: 0.75rem; }

/* ── Buttons ─────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.9rem;
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
    border: none;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-primary:hover { background: var(--accent-hover); }

.btn.refreshing svg { animation: spin 0.8s linear infinite; }

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

/* ── Loading Overlay ─────────────────────────────── */

.loading-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.4s;
}

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

.loading-content { text-align: center; }

.spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto 1rem;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

.loading-text {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.loading-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--mono);
}

/* ── Modal ─────────────────────────────────────── */

.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0,0,0,0.65);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    max-width: 480px;
    width: 100%;
}

.modal-content h2 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.modal-content p, .modal-content ol {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

.modal-content ol {
    padding-left: 1.25rem;
}

.modal-content a {
    color: var(--accent);
}

.modal-content input {
    width: 100%;
    padding: 0.6rem 0.8rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--mono);
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
    outline: none;
}

.modal-content input:focus { border-color: var(--accent); }

.modal-content .btn { width: 100%; justify-content: center; padding: 0.6rem; }

.modal-note {
    text-align: center;
    font-size: 0.75rem !important;
    color: var(--text-dim) !important;
    margin-top: 0.75rem;
    margin-bottom: 0 !important;
}

/* ── Main ─────────────────────────────────────── */

.main {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

/* ── Status Panel ─────────────────────────────── */

.status-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.status-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.25rem;
    cursor: pointer;
    user-select: none;
}

.status-header h3 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.status-header .chevron {
    color: var(--text-dim);
    transition: transform 0.2s;
}

.status-panel.collapsed .chevron { transform: rotate(-90deg); }
.status-panel.collapsed .status-grid { display: none; }

.status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1px;
    background: var(--border);
    border-top: 1px solid var(--border);
}

.status-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1.25rem;
    background: var(--bg-card);
    font-size: 0.8rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-dot.green { background: var(--success); box-shadow: 0 0 6px var(--success); }
.status-dot.yellow { background: var(--warning); box-shadow: 0 0 6px var(--warning); }
.status-dot.amber { background: var(--amber); box-shadow: 0 0 6px var(--amber); }
.status-dot.red { background: var(--danger); box-shadow: 0 0 6px var(--danger); }

.status-name {
    font-weight: 600;
    color: var(--text-primary);
    min-width: 140px;
}

.status-date {
    color: var(--text-muted);
    font-family: var(--mono);
    font-size: 0.75rem;
}

.status-next {
    color: var(--text-dim);
    font-size: 0.75rem;
    margin-left: auto;
    white-space: nowrap;
}

/* ── Chart Sections ──────────────────────────── */

.chart-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.chart-header { margin-bottom: 1rem; }

.chart-header h2 {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.chart-subtitle {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 0.2rem;
}

.chart-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

/* ── Toggle Buttons ──────────────────────────── */

.toggle-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
}

.toggle-divider {
    width: 1px;
    height: 24px;
    background: var(--border);
    margin: 0 0.3rem;
}

.toggle-btn {
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    font-family: var(--font);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
    border: 1.5px solid var(--btn-color, var(--border));
    background: transparent;
    color: var(--btn-color, var(--text-muted));
}

.toggle-btn.active {
    background: var(--btn-color, var(--accent));
    color: #fff;
    border-color: var(--btn-color, var(--accent));
}

.toggle-btn:hover:not(.active) {
    background: rgba(255,255,255,0.05);
}

/* ── Range Buttons ───────────────────────────── */

.range-group {
    display: flex;
    gap: 0.25rem;
    background: var(--bg-primary);
    border-radius: var(--radius);
    padding: 0.2rem;
}

.range-btn {
    padding: 0.25rem 0.65rem;
    border-radius: 6px;
    font-family: var(--mono);
    font-size: 0.7rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    background: transparent;
    color: var(--text-muted);
    transition: all 0.15s;
}

.range-btn.active {
    background: var(--accent);
    color: #fff;
}

.range-btn:hover:not(.active) {
    color: var(--text-primary);
}

/* ── Chart Canvas ────────────────────────────── */

.chart-wrapper {
    position: relative;
    width: 100%;
    height: 380px;
}

.chart-wrapper canvas {
    width: 100% !important;
    height: 100% !important;
}

.chart-hint {
    text-align: center;
    font-size: 0.7rem;
    color: var(--text-dim);
    margin-top: 0.5rem;
}

.chart-note {
    text-align: center;
    font-size: 0.75rem;
    color: var(--warning);
    margin-top: 0.4rem;
    font-style: italic;
}

/* ── Sources ─────────────────────────────────── */

.sources-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.sources-section h3 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.sources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.source-item {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    padding: 0.75rem;
    background: var(--bg-primary);
    border-radius: var(--radius);
    font-size: 0.8rem;
}

.source-item strong {
    color: var(--accent);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.source-item span { color: var(--text-muted); font-size: 0.78rem; }

.disclaimers {
    border-top: 1px solid var(--border);
    padding-top: 1rem;
}

.disclaimers p {
    font-size: 0.72rem;
    color: var(--text-dim);
    line-height: 1.7;
}

/* ── Footer ──────────────────────────────────── */

.dashboard-footer {
    text-align: center;
    padding: 1.5rem;
    font-size: 0.8rem;
    color: var(--text-dim);
    border-top: 1px solid var(--border);
    margin-top: 1rem;
}

.dashboard-footer a {
    color: var(--text-muted);
    text-decoration: none;
}

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

/* ── Responsive ──────────────────────────────── */

@media (max-width: 768px) {
    html { font-size: 14px; }

    .header-inner { padding: 0.6rem 1rem; }
    .header-title { font-size: 1rem; }
    .main { padding: 1rem; gap: 1.25rem; }
    .chart-section { padding: 1rem; }
    .chart-wrapper { height: 280px; }

    .chart-controls {
        flex-direction: column;
        align-items: flex-start;
    }

    .toggle-group { gap: 0.3rem; }

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

    .status-name { min-width: auto; }
}

@media (max-width: 480px) {
    .back-link span { display: none; }
    .chart-wrapper { height: 240px; }
}