:root {
    color-scheme: light;
    --bg: #0f172a;
    --panel: #ffffff;
    --panel-alt: #f8fafc;
    --border: #dbe3ee;
    --text: #0f172a;
    --muted: #5b6778;
    --primary: #1d4ed8;
    --success: #166534;
    --success-bg: #dcfce7;
    --info: #1d4ed8;
    --info-bg: #dbeafe;
    --warning: #92400e;
    --warning-bg: #fef3c7;
    --danger: #991b1b;
    --danger-bg: #fee2e2;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #eef2f7;
    color: var(--text);
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: 260px;
    background: var(--bg);
    color: #fff;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.sidebar-title { font-size: 1.25rem; font-weight: 700; }
.sidebar-user { color: rgba(255,255,255,.75); font-size: .95rem; }
.nav { display: flex; flex-direction: column; gap: 8px; }
.nav-link {
    display: block;
    padding: 10px 12px;
    border-radius: 10px;
    color: rgba(255,255,255,.9);
}
.nav-link.active, .nav-link:hover { background: rgba(255,255,255,.12); text-decoration: none; }
.logout-link { margin-top: auto; color: rgba(255,255,255,.85); }
.content {
    margin-left: 260px;
    padding: 32px;
}
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
}
.page-header h1 { margin: 0 0 6px; font-size: 1.9rem; }
.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 8px 24px rgba(15, 23, 42, .05);
}
.table-card { overflow: auto; }
table {
    width: 100%;
    border-collapse: collapse;
    font-size: .95rem;
}
th, td {
    text-align: left;
    padding: 12px 10px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}
th { color: var(--muted); font-weight: 600; background: var(--panel-alt); }
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: .82rem;
    font-weight: 700;
}
.badge.success { background: var(--success-bg); color: var(--success); }
.badge.info { background: var(--info-bg); color: var(--info); }
.badge.warning { background: var(--warning-bg); color: var(--warning); }
.badge.danger { background: var(--danger-bg); color: var(--danger); }
.badge.muted { background: #e2e8f0; color: #475569; }
.button, button {
    display: inline-block;
    border: 0;
    border-radius: 10px;
    background: var(--primary);
    color: #fff;
    padding: 10px 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
}
.button.ghost { background: #e2e8f0; color: #0f172a; }
.toolbar { display: flex; gap: 10px; margin-bottom: 16px; }
.alert {
    border-radius: 12px;
    padding: 12px 14px;
    margin-bottom: 16px;
}
.alert.danger { background: var(--danger-bg); color: var(--danger); }
.grid { display: grid; gap: 20px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.logs { grid-template-columns: 320px minmax(0, 1fr); align-items: start; }
.muted { color: var(--muted); }
.small { font-size: .84rem; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.pre-wrap, .log-viewer {
    white-space: pre-wrap;
    word-break: break-word;
    background: var(--panel-alt);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px;
    overflow: auto;
}
.log-viewer { min-height: 520px; max-height: 72vh; }
.meta-list { margin: 0; }
.meta-list > div { display: grid; grid-template-columns: 140px 1fr; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.meta-list dt { font-weight: 600; color: var(--muted); }
.meta-list dd { margin: 0; }
.breadcrumbs { color: var(--muted); margin-bottom: 6px; }
.sidebar-card { max-height: 76vh; overflow: auto; }
.log-link {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 8px;
    color: var(--text);
}
.log-link.active, .log-link:hover { background: var(--panel-alt); text-decoration: none; }
.login-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}
.login-card {
    width: min(420px, 100%);
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 28px;
    box-shadow: 0 16px 40px rgba(15, 23, 42, .08);
}
.login-card h1 { margin-top: 0; }
.login-card form { display: grid; gap: 14px; }
.login-card label { display: grid; gap: 6px; font-weight: 600; }
input {
    width: 100%;
    padding: 11px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    font: inherit;
}
@media (max-width: 980px) {
    .sidebar { position: static; width: auto; }
    .content { margin-left: 0; padding: 20px; }
    .grid.two, .grid.logs { grid-template-columns: 1fr; }
    .page-header { flex-direction: column; }
}
.search-form {
    display: flex;
    gap: 12px;
    align-items: center;
}
.search-form input[type="search"] {
    flex: 1 1 auto;
}
.top-gap {
    margin-top: 10px;
}
.knowledge-grid {
    align-items: start;
    margin-top: 20px;
}
.definition-list {
    margin: 0;
    padding-left: 18px;
}
.definition-list li {
    margin-bottom: 10px;
}
@media (max-width: 980px) {
    .search-form {
        flex-direction: column;
        align-items: stretch;
    }
}
.code-viewer {
    white-space: pre-wrap;
    word-break: break-word;
    background: var(--panel-alt);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px;
    overflow: auto;
    max-height: 72vh;
}
.preview-frame {
    width: 100%;
    min-height: 70vh;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fff;
}
.rendered-view {
    background: var(--panel-alt);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px;
}
.rendered-view h1,
.rendered-view h2,
.rendered-view h3,
.rendered-view h4,
.rendered-view h5,
.rendered-view h6 {
    margin-top: 0;
    margin-bottom: 12px;
}
.rendered-view p,
.rendered-view ul,
.rendered-view ol,
.rendered-view blockquote {
    margin-top: 0;
    margin-bottom: 14px;
}
.rendered-view code {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    background: rgba(15, 23, 42, .06);
    padding: 2px 6px;
    border-radius: 6px;
}
.rendered-view pre code {
    background: transparent;
    padding: 0;
}
.rendered-block {
    white-space: pre-wrap;
    overflow: auto;
    background: #0f172a;
    color: #e2e8f0;
    border-radius: 10px;
    padding: 14px;
}
.rendered-view blockquote {
    padding-left: 14px;
    border-left: 4px solid #cbd5e1;
    color: #334155;
}
.file-nav-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}