:root {
    color-scheme: dark;
    --bg: #080b12;
    --panel: #111827;
    --panel-2: #162033;
    --line: #273247;
    --text: #eef4ff;
    --muted: #93a4bc;
    --blue: #55a7ff;
    --cyan: #35d0d6;
    --green: #6ee7a8;
    --red: #ff6b7a;
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    background: radial-gradient(circle at top left, rgba(53, 208, 214, 0.16), transparent 34%), var(--bg);
}

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

.login-panel,
.panel,
.metric-card,
.dark-modal {
    background: rgba(17, 24, 39, 0.94);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.login-panel {
    width: min(430px, 100%);
    padding: 34px;
}

.brand-mark {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: rgba(85, 167, 255, 0.14);
    color: var(--blue);
    font-size: 24px;
    margin-bottom: 18px;
}

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

.admin-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    gap: 18px;
    padding: 18px;
    background: rgba(8, 11, 18, 0.9);
    border-right: 1px solid var(--line);
}

.brand,
.admin-menu a,
.btn-ghost {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    text-decoration: none;
}

.brand {
    font-weight: 800;
    padding: 10px 8px;
}

.brand i {
    color: var(--cyan);
}

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

.admin-menu a,
.btn-ghost {
    width: 100%;
    border: 1px solid transparent;
    border-radius: 8px;
    padding: 11px 12px;
    background: transparent;
    color: var(--muted);
}

.admin-menu a:hover,
.admin-menu a.active,
.btn-ghost:hover {
    background: rgba(85, 167, 255, 0.12);
    border-color: rgba(85, 167, 255, 0.28);
    color: var(--text);
}

.admin-main {
    min-width: 0;
    padding: 26px;
}

.admin-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 22px;
}

.admin-topbar h1 {
    margin: 0;
    font-size: 32px;
    letter-spacing: 0;
}

.eyebrow {
    display: block;
    color: var(--cyan);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 16px;
}

.metric-card {
    padding: 18px;
}

.metric-card span {
    color: var(--muted);
    display: block;
    font-size: 13px;
}

.metric-card strong {
    display: block;
    font-size: 30px;
    margin-top: 4px;
}

.panel {
    padding: 18px;
    margin-bottom: 16px;
}

.panel-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.panel h2,
.panel-title h2 {
    margin: 0;
    font-size: 18px;
}

.server-grid,
.knowledge-grid,
.chart-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.server-card {
    background: linear-gradient(180deg, rgba(22, 32, 51, 0.96), rgba(17, 24, 39, 0.96));
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 18px;
}

.server-card header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: 14px;
}

.model-list {
    display: grid;
    gap: 8px;
    margin-top: 14px;
}

.model-row,
.model-check {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.03);
}

.model-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

.model-row small {
    color: var(--muted);
}

.model-check-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    max-height: 220px;
    overflow: auto;
}

.table {
    --bs-table-color: var(--text);
    --bs-table-bg: transparent;
    --bs-table-border-color: var(--line);
    --bs-table-hover-color: var(--text);
    --bs-table-hover-bg: rgba(85, 167, 255, 0.08);
}

.table-wrap {
    overflow: auto;
}

.form-control,
.form-select {
    color: var(--text);
    background: #0c1220;
    border-color: var(--line);
}

.form-control:focus,
.form-select:focus {
    color: var(--text);
    background: #0c1220;
    border-color: var(--blue);
    box-shadow: 0 0 0 0.18rem rgba(85, 167, 255, 0.18);
}

.form-control::placeholder {
    color: #6f8098;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.full {
    grid-column: 1 / -1;
}

.check-line {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--muted);
}

.btn-primary {
    background: linear-gradient(135deg, var(--blue), var(--cyan));
    border: 0;
    color: #051018;
    font-weight: 800;
}

.btn-soft {
    color: var(--text);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--line);
}

.btn-danger-soft {
    color: #ffdce0;
    background: rgba(255, 107, 122, 0.12);
    border: 1px solid rgba(255, 107, 122, 0.35);
}

.badge-soft {
    color: var(--green);
    background: rgba(110, 231, 168, 0.12);
    border: 1px solid rgba(110, 231, 168, 0.24);
}

.text-secondary {
    color: var(--muted) !important;
}

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

    .admin-sidebar {
        position: static;
        height: auto;
    }

    .metric-grid,
    .server-grid,
    .knowledge-grid,
    .chart-grid,
    .form-grid,
    .model-check-grid {
        grid-template-columns: 1fr;
    }
}