/* ClassroomManager 帮助文档共享样式 */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.55);
    --bg-code: #0b1220;
    --border: rgba(148, 163, 184, 0.18);
    --border-strong: rgba(6, 182, 212, 0.35);
    --text: #e2e8f0;
    --text-dim: #94a3b8;
    --accent: #06b6d4;
    --accent-hot: #f97316;
    --good: #22c55e;
    --warn: #fbbf24;
    --bad: #ef4444;
    --mono: "Cascadia Code", "Fira Code", "JetBrains Mono", Consolas, Menlo, monospace;
    --sans: "Nunito", "Segoe UI", system-ui, -apple-system, sans-serif;
}

html, body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    line-height: 1.65;
    font-size: 15px;
    min-height: 100vh;
}

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

/* ── SIDEBAR ──────────────────────────────────────────────────── */
.sidebar {
    background: linear-gradient(180deg, #0a0f1e 0%, #0e1a3a 100%);
    border-right: 1px solid var(--border);
    padding: 28px 18px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}
.sidebar-brand {
    font-size: 12px;
    color: var(--accent);
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 4px;
}
.sidebar-title {
    font-size: 18px;
    font-weight: 800;
    color: #f8fafc;
    margin-bottom: 18px;
}
.sidebar nav { display: flex; flex-direction: column; gap: 2px; margin-bottom: 24px; }
.sidebar nav a {
    color: var(--text-dim);
    text-decoration: none;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 13.5px;
    border-left: 2px solid transparent;
    transition: all .15s;
}
.sidebar nav a:hover { background: rgba(6, 182, 212, 0.08); color: var(--text); }
.sidebar nav a.active { background: rgba(6, 182, 212, 0.12); color: var(--accent); border-left-color: var(--accent); }
.sidebar nav .sep { height: 1px; background: var(--border); margin: 8px 0; }
.sidebar nav .group { font-size: 10px; letter-spacing: 1.5px; color: #475569; padding: 12px 12px 6px; text-transform: uppercase; }

.sidebar-foot { font-size: 11px; color: #475569; padding-top: 12px; border-top: 1px solid var(--border); }
.sidebar-foot a { color: var(--accent); text-decoration: none; }

/* ── MAIN ─────────────────────────────────────────────────────── */
.main { padding: 36px 48px 80px; max-width: 980px; }
.page-eyebrow { font-size: 11px; color: var(--accent); letter-spacing: 3px; font-weight: 700; text-transform: uppercase; }
h1 { font-size: 32px; font-weight: 900; margin: 4px 0 8px; color: #f8fafc; }
.page-lead { color: var(--text-dim); margin-bottom: 28px; max-width: 720px; }

h2 {
    font-size: 22px;
    font-weight: 800;
    color: #f8fafc;
    margin: 36px 0 14px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}
h3 { font-size: 16px; font-weight: 700; color: var(--accent); margin: 22px 0 8px; }
h4 { font-size: 14px; font-weight: 700; color: var(--text); margin: 14px 0 6px; }

p { margin-bottom: 10px; }
ul, ol { padding-left: 22px; margin-bottom: 12px; }
li { margin-bottom: 4px; }
a { color: var(--accent); }
strong { color: #f8fafc; }
em { color: var(--accent-hot); font-style: normal; }

code {
    font-family: var(--mono);
    background: rgba(6, 182, 212, 0.1);
    color: var(--accent);
    padding: 1.5px 6px;
    border-radius: 4px;
    font-size: 13px;
}
pre {
    background: var(--bg-code);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px 16px;
    overflow-x: auto;
    margin: 8px 0 16px;
    font-family: var(--mono);
    font-size: 13px;
    line-height: 1.55;
}
pre code { background: transparent; color: var(--text); padding: 0; }

.callout {
    background: rgba(6, 182, 212, 0.08);
    border-left: 3px solid var(--accent);
    padding: 12px 16px;
    border-radius: 4px;
    margin: 12px 0;
    font-size: 14px;
}
.callout.warn { background: rgba(251, 191, 36, 0.08); border-left-color: var(--warn); }
.callout.bad  { background: rgba(239, 68, 68, 0.08); border-left-color: var(--bad); }
.callout.good { background: rgba(34, 197, 94, 0.08); border-left-color: var(--good); }
.callout strong { display: block; margin-bottom: 4px; }

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 18px 20px;
    margin-bottom: 14px;
}

/* ── TABLES ───────────────────────────────────────────────────── */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 8px 0 18px;
    font-size: 13.5px;
}
th, td {
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
}
th { color: var(--accent); font-weight: 700; background: rgba(6, 182, 212, 0.05); }
tbody tr:hover { background: rgba(6, 182, 212, 0.04); }

/* ── BLOCK CARDS (for blocks page) ────────────────────────────── */
.cat-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 18px 22px;
    margin-bottom: 18px;
}
.cat-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 8px; }
.cat-emoji { font-size: 22px; }
.cat-name { font-size: 18px; font-weight: 800; color: #f8fafc; }
.cat-name-en { font-size: 12px; color: var(--text-dim); }
.cat-id { margin-left: auto; font-family: var(--mono); font-size: 11px; color: var(--text-dim); background: var(--bg-code); padding: 2px 8px; border-radius: 4px; }
.cat-count { font-size: 12px; color: var(--text-dim); margin-bottom: 12px; }
.block-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 8px; }
.block-cell {
    background: rgba(15, 23, 42, 0.45);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 12px;
}
.block-cell .name-zh { font-weight: 700; color: var(--text); font-size: 13.5px; }
.block-cell .name-en { color: var(--text-dim); font-size: 11px; margin-left: 6px; }
.block-cell .id { display: block; font-family: var(--mono); font-size: 11px; color: var(--accent); margin-top: 2px; }

/* ── API REFERENCE ─────────────────────────────────────────────── */
.api-row {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px 20px;
    margin-bottom: 12px;
}
.api-sig { font-family: var(--mono); font-size: 14px; color: var(--text); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.api-sig .method { font-weight: 700; padding: 2px 10px; border-radius: 4px; font-size: 11px; letter-spacing: 1px; }
.api-sig .method.GET    { background: rgba(34, 197, 94, 0.18); color: var(--good); }
.api-sig .method.POST   { background: rgba(6, 182, 212, 0.18); color: var(--accent); }
.api-sig .method.DELETE { background: rgba(239, 68, 68, 0.18); color: var(--bad); }
.api-sig .path { font-weight: 700; }
.api-desc { color: var(--text-dim); font-size: 13.5px; margin-top: 6px; }
.api-auth { display: inline-block; margin-left: auto; font-size: 11px; padding: 2px 8px; border-radius: 4px; font-family: var(--mono); }
.api-auth.required { background: rgba(251, 191, 36, 0.15); color: var(--warn); }
.api-auth.none { background: rgba(100, 116, 139, 0.18); color: var(--text-dim); }

/* ── RESPONSIVE ───────────────────────────────────────────────── */
@media (max-width: 880px) {
    body { grid-template-columns: 1fr; }
    .sidebar { position: relative; height: auto; }
    .main { padding: 24px; }
}

/* Tiny scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(148, 163, 184, 0.2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(148, 163, 184, 0.35); }