/* dn-bgp Admin GUI - Dark Theme */
:root {
    --bg-primary: #0a0b0d;
    --bg-secondary: #12141a;
    --bg-card: #181a22;
    --bg-card-hover: #1e2130;
    --border: #2a2d3a;
    --border-hover: #3a3d4a;
    --text-primary: #e8e8ec;
    --text-secondary: #8b8d98;
    --text-muted: #5a5c68;
    --accent: #00ff88;
    --accent-dim: rgba(0, 255, 136, 0.15);
    --accent-glow: rgba(0, 255, 136, 0.3);
    --danger: #ff4466;
    --danger-dim: rgba(255, 68, 102, 0.15);
    --warning: #ffaa33;
    --warning-dim: rgba(255, 170, 51, 0.15);
    --info: #3399ff;
    --info-dim: rgba(51, 153, 255, 0.15);
    --font-body: 'Inter', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --radius: 8px;
    --radius-lg: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
}

/* Layout */
.layout { display: flex; min-height: 100vh; }

.sidebar {
    width: 240px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 20px 0;
    position: fixed;
    top: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 100;
}

.sidebar-logo {
    padding: 0 20px 20px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 12px;
}

.sidebar-logo h1 {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 1px;
}

.sidebar-logo small {
    color: var(--text-muted);
    font-size: 11px;
}

.nav-section {
    padding: 8px 16px;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    margin-top: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.15s;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.03);
}

.nav-item.active {
    color: var(--accent);
    background: var(--accent-dim);
    border-left-color: var(--accent);
}

.nav-item i { width: 18px; text-align: center; font-size: 14px; }

.main-content {
    margin-left: 240px;
    flex: 1;
    padding: 24px 32px;
    min-width: 0;
}

/* Header */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.page-header h2 { font-size: 22px; font-weight: 700; }

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 16px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.card-header h3 { font-size: 15px; font-weight: 600; }

/* Stat Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    text-align: center;
    transition: all 0.2s;
}

.stat-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.stat-value {
    font-size: 32px;
    font-weight: 800;
    font-family: var(--font-mono);
    margin-bottom: 4px;
}

.stat-value.green { color: var(--accent); }
.stat-value.red { color: var(--danger); }
.stat-value.blue { color: var(--info); }
.stat-value.yellow { color: var(--warning); }

.stat-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
}

/* Tables */
.table-wrapper { overflow-x: auto; }

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

th {
    text-align: left;
    padding: 10px 12px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

td {
    padding: 10px 12px;
    border-bottom: 1px solid rgba(255,255,255,0.03);
    vertical-align: middle;
}

tr:hover td { background: rgba(255,255,255,0.02); }

/* Badges */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-up { background: var(--accent-dim); color: var(--accent); }
.badge-down { background: var(--danger-dim); color: var(--danger); }
.badge-idle { background: var(--warning-dim); color: var(--warning); }
.badge-customer { background: var(--info-dim); color: var(--info); }
.badge-internal { background: rgba(255,255,255,0.08); color: var(--text-secondary); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
}

.btn-primary:hover { box-shadow: 0 4px 20px var(--accent-glow); }

.btn-secondary {
    background: rgba(255,255,255,0.08);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover { background: rgba(255,255,255,0.12); }

.btn-danger {
    background: var(--danger-dim);
    color: var(--danger);
    border: 1px solid rgba(255,68,102,0.3);
}

.btn-danger:hover { background: rgba(255,68,102,0.25); }

.btn-sm { padding: 5px 10px; font-size: 12px; }

/* Forms */
.form-group { margin-bottom: 16px; }

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 13px;
    font-family: var(--font-body);
    transition: border-color 0.15s;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-control::placeholder { color: var(--text-muted); }

/* Search bar */
.search-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.search-bar .form-control { max-width: 400px; }

/* Mono text */
.mono { font-family: var(--font-mono); font-size: 12px; }

/* AS Path display */
.as-path span {
    display: inline-block;
    padding: 1px 6px;
    background: rgba(255,255,255,0.05);
    border-radius: 3px;
    margin-right: 4px;
    font-family: var(--font-mono);
    font-size: 12px;
}

/* Community tags */
.community-tag {
    display: inline-block;
    padding: 2px 8px;
    background: var(--info-dim);
    color: var(--info);
    border-radius: 4px;
    font-size: 11px;
    font-family: var(--font-mono);
    margin-right: 4px;
    margin-bottom: 4px;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 13px;
}

.alert-info { background: var(--info-dim); color: var(--info); border: 1px solid rgba(51,153,255,0.3); }
.alert-success { background: var(--accent-dim); color: var(--accent); border: 1px solid rgba(0,255,136,0.3); }
.alert-danger { background: var(--danger-dim); color: var(--danger); border: 1px solid rgba(255,68,102,0.3); }

/* Connection indicator */
.ws-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-muted);
}

.ws-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--danger);
}

.ws-dot.connected { background: var(--accent); }

/* Loading spinner */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Modal overlay */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar { width: 60px; }
    .sidebar-logo h1, .sidebar-logo small, .nav-section, .nav-item span { display: none; }
    .nav-item { justify-content: center; padding: 12px; }
    .main-content { margin-left: 60px; }
}