:root {
    --bg: #f5f6f8;
    --panel: #ffffff;
    --text: #181a1d;
    --muted: #777d86;
    --border: #dfe2e6;
    --accent: #2563eb;
    --green: #16a34a;
    --red: #dc2626;
    --yellow: #ca8a04;
}

html[data-theme="dark"] {
    --bg: #111315;
    --panel: #181b1f;
    --text: #e8eaed;
    --muted: #8b919a;
    --border: #292d33;
    --accent: #4d8dff;
    --green: #22c55e;
    --red: #ef4444;
    --yellow: #eab308;
}

* {
    box-sizing: border-box;
}

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

header {
    height: 58px;
    display: flex;
    align-items: center;
    gap: 30px;
    padding: 0 24px;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
}

.brand {
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 1.4px;
}

nav {
    display: flex;
    gap: 4px;
    flex: 1;
}

nav a {
    padding: 8px 12px;
    border-radius: 6px;
    color: var(--muted);
    text-decoration: none;
    font-size: 14px;
}

nav a:hover,
nav a.active {
    color: var(--text);
    background: var(--bg);
}

button {
    border: 1px solid var(--border);
    background: var(--panel);
    color: var(--text);
    border-radius: 6px;
    padding: 7px 10px;
    cursor: pointer;
}

main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 28px;
}

.page-head {
    margin-bottom: 26px;
}

h1 {
    margin: 0;
    font-size: 24px;
    font-weight: 650;
}

h2 {
    margin: 0;
    font-size: 14px;
    font-weight: 650;
}

section {
    margin-bottom: 32px;
}

.section-head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

section > h2 {
    margin-bottom: 12px;
}

.metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 10px;
}

.metric {
    min-height: 100px;
    padding: 16px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.metric span {
    color: var(--muted);
    font-size: 12px;
}

.metric strong {
    font-size: 23px;
    font-weight: 600;
}

.metric small {
    color: var(--muted);
    font-size: 11px;
}

.status {
    font-size: 10px;
    font-weight: 700;
    padding: 3px 6px;
    border-radius: 4px;
}

.status.ok {
    color: var(--green);
    border: 1px solid var(--green);
}

.empty {
    padding: 30px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--muted);
}

@media (max-width: 700px) {
    header {
        gap: 12px;
        padding: 0 14px;
    }

    .brand {
        display: none;
    }

    nav {
        overflow-x: auto;
    }

    main {
        padding: 18px;
    }

    .metrics {
        grid-template-columns: repeat(2, 1fr);
    }
}