:root {
    --bg-dark: #0f172a;
    --card-bg: #1e293b;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --success: #22c55e;
    --danger: #ef4444;
}

body {
    background-color: var(--bg-dark);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    margin: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    letter-spacing: -1px;
}

.logo span { color: var(--primary); }

.card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 500;
}

.btn-primary:hover { background: var(--primary-hover); }

.btn-secondary {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid #334155;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    cursor: pointer;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: 0.75rem;
    overflow: hidden;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #334155;
}

th { color: var(--text-muted); font-weight: 500; }

.status-healthy { color: var(--success); }
.status-error { color: var(--danger); }

.modal {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.modal-content {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    max-width: 400px;
    width: 90%;
}

.hidden { display: none; }

.loader {
    border: 3px solid #334155;
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
    margin: 1rem auto;
}

@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }