:root {
    --bg: #0b1120;
    --bg-alt: #111827;
    --panel: rgba(17, 24, 39, 0.88);
    --panel-soft: rgba(15, 23, 42, 0.72);
    --card: rgba(15, 23, 42, 0.9);
    --border: rgba(148, 163, 184, 0.2);
    --text: #e5eefb;
    --muted: #a9b6d3;
    --primary: #38bdf8;
    --primary-strong: #1d4ed8;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --shadow: 0 20px 45px rgba(15, 23, 42, 0.3);
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    min-height: 100%;
    font-family: Inter, "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at top, rgba(56, 189, 248, 0.15), transparent 30%),
        linear-gradient(135deg, #020817, var(--bg));
    color: var(--text);
}

body {
    min-height: 100vh;
}

button, input, select {
    font: inherit;
}

.app-shell {
    max-width: 1400px;
    margin: 0 auto;
    padding: 32px 20px 64px;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 22px;
    padding: 18px 22px;
    background: rgba(15, 23, 42, 0.82);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), #a78bfa);
    display: grid;
    place-items: center;
    color: #00111f;
    font-weight: 900;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 14px;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.1);
    color: var(--text);
    border: 1px solid rgba(56, 189, 248, 0.25);
}

.btn {
    border: none;
    border-radius: 12px;
    padding: 10px 14px;
    cursor: pointer;
    font-weight: 600;
    transition: transform 0.2s ease, opacity 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    justify-content: center;
    align-items: center;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-strong));
    color: white;
}

.btn-secondary {
    background: rgba(15, 23, 42, 0.8);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary.active {
    background: rgba(56, 189, 248, 0.2);
    color: var(--primary);
    border: 1px solid var(--primary);
    box-shadow: inset 0 0 0 1px rgba(56, 189, 248, 0.3);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.12);
    color: #fecaca;
    border: 1px solid rgba(239, 68, 68, 0.4);
}

.btn-success {
    background: rgba(34, 197, 94, 0.12);
    color: #86efac;
    border: 1px solid rgba(34, 197, 94, 0.4);
}

.grid {
    display: grid;
    grid-template-columns: 1.2fr 2fr;
    gap: 22px;
}

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 22px;
    box-shadow: var(--shadow);
}

.sidebar {
    padding: 22px;
}

.sidebar h2,
.content-panel h2,
.login-card h2 {
    margin-top: 0;
    margin-bottom: 18px;
    font-size: 1.2rem;
}

.router-list {
    display: grid;
    gap: 12px;
    margin-top: 18px;
}

.router-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 14px;
    border-radius: 14px;
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid rgba(148, 163, 184, 0.18);
    text-decoration: none;
    color: var(--text);
}

.router-item.active {
    border-color: rgba(56, 189, 248, 0.7);
    box-shadow: inset 0 0 0 1px rgba(56, 189, 248, 0.4);
    background: rgba(14, 116, 144, 0.12);
}

.router-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: var(--success);
    box-shadow: 0 0 12px rgba(34, 197, 94, 0.7);
}

.form-grid {
    display: grid;
    gap: 14px;
    margin-top: 20px;
}

.field label {
    display: block;
    margin-bottom: 6px;
    color: var(--muted);
    font-size: 0.92rem;
}

.field input,
.field select {
    width: 100%;
    border-radius: 12px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: rgba(15, 23, 42, 0.7);
    color: var(--text);
    padding: 10px 12px;
}

.content-panel {
    padding: 24px;
}

.metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(180px, 1fr));
    gap: 18px;
    margin-bottom: 22px;
}

.metric {
    background: rgba(15, 23, 42, 0.72);
    border: 1px solid rgba(148, 163, 184, 0.12);
    border-radius: 16px;
    padding: 18px;
}

.metric-label {
    color: var(--muted);
    font-size: 0.82rem;
    margin-bottom: 8px;
}

.metric-value {
    font-size: 1.9rem;
    font-weight: 700;
}

.table-wrap {
    overflow-x: auto;
    border-radius: 15px;
    border: 1px solid rgba(148, 163, 184, 0.12);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(15, 23, 42, 0.65);
}

th, td {
    text-align: left;
    padding: 14px 16px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.08);
    vertical-align: middle;
}

th {
    font-size: 0.82rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: rgba(15, 23, 42, 0.8);
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 6px 10px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.8rem;
}

.status-connected {
    background: rgba(34, 197, 94, 0.12);
    color: #bbf7d0;
}

.status-waiting,
.status-unknown {
    background: rgba(245, 158, 11, 0.12);
    color: #fcd34d;
}

.status-disabled {
    background: rgba(239, 68, 68, 0.12);
    color: #fecaca;
}

.status-swatch {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.meta {
    color: var(--muted);
    font-size: 0.85rem;
}

.toggle-form {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.toggle-form button {
    min-width: 110px;
}

.alert {
    padding: 12px 14px;
    border-radius: 12px;
    margin-bottom: 18px;
    border: 1px solid transparent;
}

.alert-success {
    background: rgba(34, 197, 94, 0.12);
    color: #d1fae5;
    border-color: rgba(34, 197, 94, 0.26);
}

.alert-error {
    background: rgba(239, 68, 68, 0.12);
    color: #fee2e2;
    border-color: rgba(239, 68, 68, 0.3);
}

.login-layout {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-card {
    width: min(460px, 100%);
    padding: 28px;
    border-radius: 24px;
    border: 1px solid var(--border);
    background: rgba(15, 23, 42, 0.82);
    box-shadow: var(--shadow);
}

.login-card form {
    display: grid;
    gap: 16px;
}

.login-card .field input {
    padding: 12px 14px;
}

.empty-state {
    text-align: center;
    padding: 48px 18px;
    color: var(--muted);
}

@media (max-width: 980px) {
    .grid {
        grid-template-columns: 1fr;
    }

    .metrics {
        grid-template-columns: 1fr;
    }
}