:root {
    --navy-950: #050B14;
    --navy-900: #0A1628;
    --navy-800: #112240;
    --navy-700: #1D3557;
    --gold-500: #D4AF37;
    --gold-400: #E6C65B;
    --gold-dim: rgba(212, 175, 55, 0.16);
    --text-main: #F1F5F9;
    --text-muted: #94A3B8;
    --danger: #EF4444;
    --success: #10B981;
    --border: rgba(212, 175, 55, 0.25);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: "Inter", system-ui, -apple-system, sans-serif;
    background: var(--navy-950);
    color: var(--text-main);
    min-height: 100vh;
}

.banner-stack { display: flex; flex-direction: column; }
.banner {
    padding: 10px 20px;
    font-size: 0.88rem;
    font-weight: 600;
    text-align: center;
    border-bottom: 1px solid var(--border);
}
.banner.gold { background: var(--gold-dim); color: var(--gold-400); }
.banner.info { background: #0F294A; color: #93C5FD; }
.banner.warning { background: #451A03; color: #FCD34D; }
.banner.critical { background: #450A0A; color: #FCA5A5; }

.shell { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.sidebar {
    background: var(--navy-900);
    border-right: 1px solid var(--border);
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.brand {
    border-bottom: 1px solid var(--border);
    padding-bottom: 16px;
}
.brand h1 {
    font-size: 1.2rem;
    letter-spacing: 0.08em;
    color: var(--gold-500);
    text-transform: uppercase;
}
.brand span { font-size: 0.75rem; color: var(--text-muted); }

.nav-group { display: flex; flex-direction: column; gap: 6px; }
.nav-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin: 8px 8px 4px;
}
.nav-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-main);
    text-align: left;
    padding: 10px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
}
.nav-btn:hover, .nav-btn.active {
    background: var(--gold-dim);
    border-color: var(--border);
    color: var(--gold-400);
}

.main { padding: 28px 36px; overflow-y: auto; }
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}
.badge {
    display: inline-block;
    padding: 3px 9px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    background: var(--gold-dim);
    color: var(--gold-400);
    border: 1px solid var(--border);
}

.card {
    background: var(--navy-900);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}
.card h2 {
    font-size: 1.05rem;
    color: var(--gold-400);
    margin-bottom: 14px;
    letter-spacing: 0.03em;
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

input, select, textarea {
    background: var(--navy-950);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 9px 12px;
    border-radius: 6px;
    font-size: 0.9rem;
}
button.btn {
    background: var(--gold-500);
    color: var(--navy-950);
    font-weight: 700;
    border: none;
    padding: 9px 16px;
    border-radius: 6px;
    cursor: pointer;
}
button.btn:hover { background: var(--gold-400); }
button.btn-outline {
    background: transparent;
    color: var(--gold-400);
    border: 1px solid var(--border);
    padding: 8px 14px;
    border-radius: 6px;
    cursor: pointer;
}
button.btn-danger {
    background: var(--danger);
    color: #fff;
    border: none;
    padding: 7px 12px;
    border-radius: 6px;
    cursor: pointer;
}

table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th, td {
    text-align: left;
    padding: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.07);
}
th { color: var(--gold-400); font-weight: 600; }

/* Dual Code + AI IDE */
.ide-split { display: grid; grid-template-columns: 1.4fr 1fr; gap: 16px; }
.code-area {
    width: 100%;
    min-height: 380px;
    font-family: "JetBrains Mono", "Fira Code", monospace;
    font-size: 0.85rem;
    line-height: 1.5;
    background: #030712;
    color: #E2E8F0;
}
.login-gate {
    max-width: 440px;
    margin: 14vh auto;
    text-align: center;
}