:root {
    --bg: #0f172a;
    --text: #f8fafc;
    --text-muted: #94a3b8;

    --glass-bg: rgba(255,255,255,0.06);
    --glass-border: rgba(255,255,255,0.12);

    --card-bg: rgba(255,255,255,0.08);
    --card-border: rgba(255,255,255,0.15);

    --btn-bg: linear-gradient(135deg, #2563eb, #3b82f6);
    --btn-hover: linear-gradient(135deg, #1d4ed8, #2563eb);
}

:root[data-theme="light"] {
    --bg: #f1f5f9;
    --text: #1e293b;
    --text-muted: #475569;

    --glass-bg: rgba(255,255,255,0.6);
    --glass-border: rgba(0,0,0,0.1);

    --card-bg: rgba(255,255,255,0.8);
    --card-border: rgba(0,0,0,0.15);
}

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

/* TOPBAR */
.topbar {
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 25px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
}

.topbar h1 {
    margin: 0;
    font-size: 1.6rem;
}

.search {
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text);
}

/* SIDEBAR */
.sidebar {
    width: 240px;
    background: var(--glass-bg);
    backdrop-filter: blur(14px);
    border-right: 1px solid var(--glass-border);
    padding: 25px;
}

.sidebar-title {
    font-weight: 600;
    margin-bottom: 20px;
}

.nav-item {
    display: block;
    padding: 10px 0;
    color: var(--text-muted);
    text-decoration: none;
    transition: 0.2s;
}

.nav-item:hover {
    color: var(--text);
    transform: translateX(4px);
}

/* LAYOUT */
.layout {
    display: flex;
    height: calc(100vh - 70px);
}

/* CONTENT */
.content {
    flex: 1;
    padding: 25px;
    overflow-y: auto;
}

/* GLOBAL STATUS */
.global-status {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 20px;
    border-radius: 14px;
    margin-bottom: 25px;
}

/* SERVICES */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.status-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    padding: 16px 18px;
    transition: 0.25s;
}

.status-card.ok {
    border-color: #22c55e;
}

.status-card.warn {
    border-color: #eab308;
}

.status-card.crit {
    border-color: #ef4444;
}

.status-card .value {
    font-size: 1.4rem;
    font-weight: 600;
}

.service-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 20px;
    border-radius: 14px;
    transition: 0.25s;
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: #3b82f6;
}

.btn {
    display: inline-block;
    margin-top: 10px;
    padding: 10px 14px;
    border-radius: 10px;
    background: var(--btn-bg);
    color: white;
    text-decoration: none;
    transition: 0.2s;
}

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

/* ANIMATIONS */
.fade-in {
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.spin {
    transform: rotate(360deg);
    transition: transform 0.6s ease;
}