body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #f1f5f9;
    color: #1e293b;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #ffffff;
    padding: 20px 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid #e2e8f0;
    margin-bottom: 20px;
}

.header h2 {
    margin: 0;
    color: #0f172a;
    font-size: 20px;
}

.logout {
    color: #dc2626;
    text-decoration: none;
    font-size: 13px;
    font-weight: bold;
}

.logout:hover {
    text-decoration: underline;
}

/* Layout Grid Dashboard */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.full-width {
    grid-column: 1 / -1;
}

@media (max-width: 900px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

.card {
    background: #ffffff;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid #e2e8f0;
}

.card h3 {
    margin-top: 0;
    font-size: 16px;
    color: #0f172a;
    margin-bottom: 15px;
    border-bottom: 2px solid #f1f5f9;
    padding-bottom: 10px;
}

input, select {
    width: 100%;
    padding: 10px 12px;
    border-radius: 6px;
    border: 1px solid #cbd5e1;
    background: #ffffff;
    color: #1e293b;
    box-sizing: border-box;
    margin-bottom: 12px;
    font-size: 14px;
}

input:focus, select:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
}

.btn {
    padding: 10px 15px;
    border: none;
    border-radius: 6px;
    font-weight: bold;
    cursor: pointer;
    font-size: 14px;
    transition: 0.2s;
}

.btn-blue { background: #2563eb; color: #fff; width: 100%; }
.btn-blue:hover { background: #1d4ed8; }

.btn-green { background: #059669; color: #fff; }
.btn-green:hover { background: #047857; }

.btn-red { background: #dc2626; color: #fff; }
.btn-red:hover { background: #b91c1c; }

.alert {
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 500;
}

.success { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
    font-size: 13px;
}

th, td {
    text-align: left;
    padding: 12px 10px;
    border-bottom: 1px solid #f1f5f9;
}

th {
    color: #64748b;
    font-weight: 600;
}

.badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: bold;
}

.badge-live { background: #d1fae5; color: #065f46; border: 1px solid #34d399; }
.badge-off { background: #fee2e2; color: #991b1b; border: 1px solid #f87171; }