:root {
    --bg: #0b1220;
    --panel: #111b31;
    --panel-2: #0f172a;
    --border: #27344f;
    --text: #e6ecff;
    --muted: #93a4cb;
    --accent: #5b8cff;
}

* {
    box-sizing: border-box;
}

body.app-body {
    min-height: 100vh;
    margin: 0;
    color: var(--text);
    background:
        radial-gradient(circle at 10% 20%, #18284d 0%, transparent 40%),
        radial-gradient(circle at 90% 10%, #1d2a45 0%, transparent 35%),
        var(--bg);
}

.app-shell {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
}

.app-sidebar {
    border-right: 1px solid var(--border);
    background: rgba(6, 12, 24, 0.76);
    backdrop-filter: blur(8px);
    padding: 24px 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    text-decoration: none;
    font-weight: 700;
    margin-bottom: 22px;
}

.brand-dot {
    width: 12px;
    height: 12px;
    border-radius: 999px;
    background: linear-gradient(135deg, #63a3ff, #9f7aea);
    box-shadow: 0 0 0 5px rgba(92, 145, 255, 0.2);
}

.menu {
    display: grid;
    gap: 8px;
}

.menu-item {
    display: block;
    text-decoration: none;
    color: var(--muted);
    padding: 11px 12px;
    border-radius: 10px;
    transition: 0.2s ease;
    border: 1px solid transparent;
}

.menu-item:hover {
    color: var(--text);
    background: rgba(91, 140, 255, 0.12);
    border-color: rgba(91, 140, 255, 0.2);
}

.menu-item.is-active {
    color: #fff;
    background: linear-gradient(135deg, rgba(91, 140, 255, 0.38), rgba(116, 87, 255, 0.28));
    border-color: rgba(137, 168, 255, 0.38);
}

.app-main {
    padding: 24px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 22px;
}

.topbar-title {
    margin: 0;
    font-size: 1.35rem;
}

.topbar-subtitle {
    color: var(--muted);
    font-size: 0.9rem;
}

.topbar-user {
    display: flex;
    gap: 12px;
    align-items: center;
}

.page-content {
    max-width: 1400px;
}

.panel {
    background: linear-gradient(180deg, rgba(17, 27, 49, 0.96), rgba(13, 22, 39, 0.96));
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 18px;
    box-shadow: 0 15px 35px rgba(1, 6, 17, 0.3);
}

.panel-title {
    margin: 0 0 14px;
    font-size: 1.1rem;
}

.grid-cards {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.stat-card {
    padding: 16px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: linear-gradient(135deg, rgba(91, 140, 255, 0.15), rgba(122, 92, 255, 0.08));
}

.stat-title {
    color: var(--muted);
    font-size: 0.9rem;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
}

.stat-meta {
    color: #b8c5e6;
    font-size: 0.85rem;
}

.quick-grid {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.quick-link {
    display: block;
    color: #f5f7ff;
    text-decoration: none;
    padding: 13px 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: rgba(91, 140, 255, 0.08);
}

.quick-link:hover {
    background: rgba(91, 140, 255, 0.18);
}

.form-control,
.form-select {
    background-color: var(--panel-2);
    border-color: var(--border);
    color: #eef3ff;
}

.form-control:focus,
.form-select:focus {
    background-color: #0c162d;
    border-color: #4f79ff;
    box-shadow: 0 0 0 0.25rem rgba(79, 121, 255, 0.2);
    color: #fff;
}

.form-stack {
    max-width: 860px;
}

.form-row {
    margin-bottom: 14px;
}

.table {
    --bs-table-color: #e6ecff;
    --bs-table-bg: transparent;
    --bs-table-border-color: #22304b;
    --bs-table-hover-color: #fff;
    --bs-table-hover-bg: rgba(92, 133, 255, 0.12);
}

details > summary {
    list-style: none;
}

details > summary::-webkit-details-marker {
    display: none;
}

.auth-container {
    max-width: 520px;
}

.login-card {
    max-width: 480px;
    padding: 28px;
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(17, 27, 49, 0.96), rgba(11, 19, 34, 0.96));
    border: 1px solid var(--border);
    box-shadow: 0 20px 55px rgba(5, 11, 25, 0.45);
}

@media (max-width: 992px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .app-sidebar {
        border-right: 0;
        border-bottom: 1px solid var(--border);
    }
}