:root {
    color-scheme: dark;
    --bg: #101418;
    --panel: #1a2028;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --online: #10b981;
    --atraso: #f59e0b;
    --semdados: #ef4444;
    --border: #2c3440;
}

* {
    box-sizing: border-box;
    font-family: Inter, Segoe UI, Arial, sans-serif;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px;
}

.header h1 {
    margin: 0;
}

.header p {
    color: var(--muted);
}

.alerta {
    color: var(--semdados);
}

.cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin: 16px 0;
}

.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px;
}

.card h2 {
    font-size: 0.9rem;
    color: var(--muted);
    margin: 0 0 8px;
}

.card p {
    margin: 0;
    font-size: 1.6rem;
    font-weight: 700;
}

.card.online p { color: var(--online); }
.card.atraso p { color: var(--atraso); }
.card.semdados p { color: var(--semdados); }

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px;
    margin-bottom: 14px;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

button,
select {
    background: #252f3b;
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 12px;
}

.filtros {
    display: flex;
    gap: 12px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.filtros label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--muted);
}

.small {
    font-size: 0.85rem;
    color: var(--muted);
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    text-align: left;
    border-bottom: 1px solid var(--border);
    padding: 8px;
    font-size: 0.9rem;
}

.badge {
    display: inline-block;
    border-radius: 999px;
    padding: 3px 8px;
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
}

.badge.online { background: rgba(16, 185, 129, 0.2); color: var(--online); }
.badge.atraso { background: rgba(245, 158, 11, 0.2); color: var(--atraso); }
.badge.semdados { background: rgba(239, 68, 68, 0.2); color: var(--semdados); }

@media (max-width: 900px) {
    .cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 520px) {
    .cards {
        grid-template-columns: 1fr;
    }
}