:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-color: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #3b82f6;
    --success: #10b981;
    --danger: #ef4444;
    --border: #334155;
}

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

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border);
}
.logo { font-size: 1.5rem; font-weight: bold; }
.logo span { font-size: 1.2rem; }
.logout-link { color: var(--text-muted); text-decoration: none; }

.dashboard-container { padding: 2rem; max-width: 1400px; margin: 0 auto; }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}
.stat-card p { font-size: 2.5rem; font-weight: bold; margin: 0.5rem 0 0 0; }
.border-blue { border-left: 5px solid var(--primary); }
.border-green { border-left: 5px solid var(--success); }
.border-red { border-left: 5px solid var(--danger); }

.layout-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 1.5rem;
}

.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; margin-bottom: 0.5rem; color: var(--text-muted); font-size: 0.9rem;}
.form-group input, .form-group select {
    width: 100%; padding: 0.75rem; border-radius: 0.5rem; border: 1px solid var(--border);
    background-color: var(--bg-color); color: white; box-sizing: border-box;
}

.btn {
    padding: 0.75rem 1.5rem; border: none; border-radius: 0.5rem; cursor: pointer; font-weight: bold; width: 100%;
}
.btn-primary { background-color: var(--primary); color: white; }
.btn-success { background-color: var(--success); color: white; }

.table-wrapper { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; text-align: left; margin-top: 1rem; }
.table th, .table td { padding: 0.75rem; border-bottom: 1px solid var(--border); }
.table th { color: var(--text-muted); font-size: 0.85rem; }

.badge { padding: 0.25rem 0.5rem; border-radius: 0.25rem; font-size: 0.8rem; background: var(--border); }
.badge.success { background: rgba(16, 185, 129, 0.2); color: var(--success); }
.badge.danger { background: rgba(239, 68, 68, 0.2); color: var(--danger); }
.badge.info { background: rgba(59, 130, 246, 0.2); color: var(--primary); }

.site-row {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1rem 0; border-bottom: 1px solid var(--border); flex-wrap: wrap;
}
.site-info { display: flex; align-items: center; gap: 1rem; }
.status-indicator { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.status-indicator.up { background-color: var(--success); box-shadow: 0 0 8px var(--success); }
.status-indicator.down { background-color: var(--danger); box-shadow: 0 0 8px var(--danger); }
.site-chart-wrapper { width: 450px; max-width: 100%; }

.auth-body { display: flex; justify-content: center; align-items: center; height: 100vh; background: var(--bg-color); }
.auth-card { background: var(--card-bg); padding: 2.5rem; border-radius: 1rem; border: 1px solid var(--border); width: 100%; max-width: 400px; }
.auth-redirect { text-align: center; margin-top: 1.5rem; color: var(--text-muted); }
.auth-redirect a { color: var(--primary); text-decoration: none; }
.text-green { color: var(--success); } .text-red { color: var(--danger); }