:root {
    color-scheme: light dark;
    --bg: #f4f5f7;
    --surface: #ffffff;
    --text: #1a1d23;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --badge-ok-bg: #dcfce7;
    --badge-ok-text: #166534;
    --badge-stale-bg: #fef3c7;
    --badge-stale-text: #92400e;
    --badge-error-bg: #fee2e2;
    --badge-error-text: #991b1b;
    --notice-bg: #fffbeb;
    --notice-border: #fbbf24;
    --notice-text: #78350f;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f1115;
        --surface: #1a1d23;
        --text: #f3f4f6;
        --text-muted: #9ca3af;
        --border: #2b2f38;
        --badge-ok-bg: #14321f;
        --badge-ok-text: #86efac;
        --badge-stale-bg: #3a2a0a;
        --badge-stale-text: #fcd34d;
        --badge-error-bg: #3a1414;
        --badge-error-text: #fca5a5;
        --notice-bg: #241d08;
        --notice-border: #92400e;
        --notice-text: #fde68a;
    }
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.page {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1.5rem 3rem;
}

.page-header {
    margin-bottom: 1.75rem;
}

.page-header h1 {
    margin: 0 0 0.35rem;
    font-size: 2rem;
}

.page-subtitle {
    margin: 0;
    color: var(--text-muted);
}

.notice {
    background: var(--notice-bg);
    border: 1px solid var(--notice-border);
    color: var(--notice-text);
    border-radius: 10px;
    padding: 0.85rem 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.notice code {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-top: 4px solid var(--accent, #64748b);
    border-radius: 18px;
    padding: 1.75rem 1.75rem 1.35rem;
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    flex-wrap: wrap;
}

.card-icon {
    font-size: 1.75rem;
    line-height: 1;
}

.card-title {
    margin: 0;
    font-size: 1.3rem;
    flex: 1 1 auto;
}

.badge {
    font-size: 0.78rem;
    font-weight: 600;
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    white-space: nowrap;
}

.badge-ok {
    background: var(--badge-ok-bg);
    color: var(--badge-ok-text);
}

.badge-stale {
    background: var(--badge-stale-bg);
    color: var(--badge-stale-text);
}

.badge-error {
    background: var(--badge-error-bg);
    color: var(--badge-error-text);
}

.card-body {
    flex: 1 1 auto;
}

.stat-main {
    font-size: 2.75rem;
    font-weight: 700;
    line-height: 1.1;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 0.85rem;
}

.stat-list {
    margin: 0;
    display: flex;
    flex-direction: column;
}

.stat-list > div {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.75rem;
    font-size: 0.95rem;
    padding: 0.5rem 0;
    border-top: 1px solid var(--border);
}

.stat-list > div:first-child {
    border-top: none;
    padding-top: 0;
}

.stat-list dt {
    color: var(--text-muted);
    font-weight: 400;
}

.stat-list dt small {
    display: block;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.stat-list dd {
    margin: 0;
    font-weight: 600;
    text-align: right;
    white-space: nowrap;
}

.card-empty {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border);
    padding-top: 0.85rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.card-link {
    color: var(--accent, #2563eb);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
}

.card-link:hover {
    text-decoration: underline;
}

.page-footer {
    margin-top: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
}