:root {
    color-scheme: light;
    --bg: #f4f6fb;
    --surface: #ffffff;
    --border: #dfe4ee;
    --text: #1f2430;
    --text-muted: #6b7280;
    --accent: #4f7cff;
    --warn-bg: #fff4e5;
    --warn-text: #9a5b00;
    --ok-bg: #e7f7ee;
    --ok-text: #157347;
}

* {
    box-sizing: border-box;
}

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

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    width: 320px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.login-form label {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    font-size: 0.9rem;
}

.login-form input,
.login-form button {
    padding: 0.55rem 0.7rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    font-size: 1rem;
}

.login-form button {
    background: var(--accent);
    color: #fff;
    border: none;
    cursor: pointer;
    margin-top: 0.5rem;
}

.login-form .error {
    color: #c0392b;
    font-size: 0.85rem;
    margin: 0;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.topbar nav {
    display: flex;
    gap: 1.25rem;
}

.topbar nav a {
    color: var(--text);
    text-decoration: none;
    font-weight: 600;
}

.topbar nav a:hover {
    color: var(--accent);
}

.plugin-filter {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.plugin-filter label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.plugin-filter select {
    padding: 0.35rem 0.5rem;
    border-radius: 6px;
    border: 1px solid var(--border);
}

.logout {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
}

main {
    padding: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.card-value {
    font-size: 2rem;
    font-weight: 700;
}

.card-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.card-warn .card-value {
    color: var(--warn-text);
}

.charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.chart-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1rem;
    overflow-x: auto;
}

.chart-box h2 {
    font-size: 1rem;
    margin: 0 0 0.75rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.data-table-wrapper {
    overflow-x: auto;
}

.data-table th,
.data-table td {
    padding: 0.6rem 0.8rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

.data-table th {
    background: var(--bg);
    font-weight: 600;
}

.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    margin: 0.1rem 0.15rem;
}

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

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