:root {
    --anb-primary: #00a86b;
    --anb-primary-dark: #008f5a;
    --anb-sidebar: #0f172a;
    --anb-bg: #f1f5f9;
    --anb-card: #ffffff;
    --anb-text: #1e293b;
}

body {
    font-family: Tahoma, "Segoe UI", system-ui, sans-serif;
    background: var(--anb-bg);
    color: var(--anb-text);
}

.guest-body {
    min-height: 100vh;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a2f 50%, #00a86b 100%);
}

.guest-wrapper {
    max-width: 520px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.admin-shell {
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--anb-sidebar);
    color: #fff;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    position: sticky;
    top: 0;
}

.brand {
    display: flex;
    gap: .75rem;
    align-items: center;
}

.brand-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--anb-primary);
    display: grid;
    place-items: center;
    font-size: 1.2rem;
}

.brand-title {
    font-weight: 700;
    font-size: 1rem;
}

.brand-sub {
    font-size: .75rem;
    opacity: .7;
}

.sidebar .nav-link {
    color: rgba(255,255,255,.8);
    border-radius: 10px;
    padding: .6rem .9rem;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    background: rgba(0,168,107,.25);
    color: #fff;
}

.main-content {
    background: var(--anb-bg);
}

.card-panel {
    background: var(--anb-card);
    border: 0;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(15,23,42,.06);
}

.stat-card {
    border-radius: 16px;
    border: 0;
    padding: 1.25rem;
    background: #fff;
    box-shadow: 0 4px 16px rgba(15,23,42,.05);
}

.stat-card .value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--anb-primary-dark);
}

.btn-primary {
    background: var(--anb-primary);
    border-color: var(--anb-primary);
}

.btn-primary:hover {
    background: var(--anb-primary-dark);
    border-color: var(--anb-primary-dark);
}

.secret-box {
    background: #0f172a;
    color: #a7f3d0;
    border-radius: 12px;
    padding: 1rem;
    font-family: Consolas, monospace;
    word-break: break-all;
}

.guest-card {
    background: rgba(255,255,255,.97);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 20px 50px rgba(0,0,0,.2);
}

@media (max-width: 768px) {
    .admin-shell {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        min-height: auto;
        position: static;
    }
}