/* CourseLabs app shell: shared by admin and author pages. Tokens from the landing page. */
:root { --navy:#0B1F3A; --navy2:#123C69; --teal:#0E7C86; --teal2:#14B8A6; --cyan:#22D3EE; --amber:#F59E0B; --ink:#0F172A; --muted:#64748B; --muted2:#94A3B8; --bg:#F8FAFC; --bg2:#F1F5F9; --border:#E2E8F0; --grad:linear-gradient(135deg,#0E7C86 0%,#14B8A6 55%,#22D3EE 100%); --serif:'DM Serif Display',Georgia,serif; --sans:Inter,system-ui,-apple-system,'Segoe UI',sans-serif; --mono:'JetBrains Mono',ui-monospace,Menlo,monospace; }
* { box-sizing:border-box; }
[hidden] { display:none !important; }
html, body { margin:0; background:var(--bg); color:var(--ink); font:400 15px/1.5 var(--sans); }
a { color:var(--teal); text-decoration:none; }
.top { position:sticky; top:0; z-index:50; display:flex; align-items:center; gap:22px; height:64px; padding:0 24px; background:rgba(255,255,255,.92); backdrop-filter:blur(10px); border-bottom:1px solid var(--border); }
.brand { display:flex; align-items:center; gap:10px; color:var(--ink); font:600 18px var(--sans); letter-spacing:-.02em; }
.brand .mark { display:grid; grid-template-columns:1fr 1fr; width:26px; height:26px; border:1.5px solid var(--teal); border-radius:5px; overflow:hidden; }
.brand .mark span:nth-child(1), .brand .mark span:nth-child(3) { background:#fff; border-right:1.5px solid var(--teal); }
.brand .mark span:nth-child(2), .brand .mark span:nth-child(4) { background:var(--navy); }
.brand small { color:var(--muted); font-weight:600; }
.top nav { display:flex; gap:18px; font:500 14px var(--sans); }
.top nav a { color:var(--ink); padding:6px 2px; border-bottom:2px solid transparent; }
.top nav a.active { border-color:var(--teal); color:var(--teal); }
.top .right { margin-left:auto; display:flex; align-items:center; gap:12px; font:500 13px var(--sans); color:var(--muted); }
.avatar { width:30px; height:30px; border-radius:999px; background:var(--grad); color:#fff; display:grid; place-items:center; font:700 12px var(--sans); }
.wrap { max-width:1280px; margin:0 auto; padding:28px 24px 64px; }
.banner { display:flex; gap:10px; align-items:center; padding:10px 14px; border-radius:8px; background:#FFFBEB; border:1px solid #FDE68A; color:#78350F; font:500 13px var(--sans); margin-bottom:22px; }
.banner b { color:#B45309; }
h1 { margin:0; font:400 34px/1.15 var(--serif); letter-spacing:-.01em; }
h2 { margin:0; font:400 22px/1.2 var(--serif); }
.sub { margin:6px 0 0; color:var(--muted); font-size:15px; }
.grid { display:grid; gap:18px; }
.cols-4 { grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); }
.cols-2 { grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr)); }
.card { background:#fff; border:1px solid var(--border); border-radius:12px; box-shadow:0 1px 2px rgba(11,31,58,.04); }
.card .hd { display:flex; align-items:center; gap:12px; padding:14px 18px; border-bottom:1px solid var(--border); }
.card .hd h2 { font-size:18px; }
.card .hd .spacer { margin-left:auto; }
.card .bd { padding:18px; }
.stat { padding:18px; }
.stat .k { font:500 11px var(--sans); letter-spacing:.12em; text-transform:uppercase; color:var(--muted2); }
.stat .v { margin-top:8px; font:700 30px/1 var(--sans); }
.stat .d { margin-top:6px; font:500 12px var(--sans); color:var(--muted); }
.stat .d.up { color:#107C10; } .stat .d.warn { color:#B45309; }
table { width:100%; border-collapse:collapse; font-size:14px; }
th { text-align:left; font:500 11px var(--sans); letter-spacing:.1em; text-transform:uppercase; color:var(--muted2); padding:10px 12px; border-bottom:1px solid var(--border); white-space:nowrap; }
td { padding:12px; border-bottom:1px solid var(--border); vertical-align:middle; }
tr:last-child td { border-bottom:0; }
.pill { display:inline-flex; align-items:center; gap:6px; padding:3px 10px; border-radius:999px; font:600 12px var(--sans); }
.pill.ok { background:rgba(20,184,166,.12); color:#0E7C86; } .pill.warn { background:#FFFBEB; color:#B45309; } .pill.off { background:var(--bg2); color:var(--muted); } .pill.info { background:rgba(34,211,238,.14); color:#0E7C86; }
.dot { width:8px; height:8px; border-radius:999px; background:currentColor; }
.btn { display:inline-flex; align-items:center; gap:8px; min-height:38px; padding:0 16px; border-radius:8px; border:1px solid var(--border); background:#fff; color:var(--ink); font:600 14px var(--sans); cursor:pointer; white-space:nowrap; }
.btn:hover { border-color:var(--teal); color:var(--teal); }
.btn.primary { border:0; color:#fff; background:var(--grad); box-shadow:0 2px 8px rgba(11,31,58,.18); }
.btn.primary:hover { color:#fff; filter:brightness(1.04); }
.btn.sm { min-height:30px; padding:0 10px; font-size:12px; }
.btn[disabled] { opacity:.5; cursor:not-allowed; }
.mono { font-family:var(--mono); font-size:12.5px; }
label { display:block; font:600 12px var(--sans); color:var(--muted); margin-bottom:6px; }
input[type=text], input[type=number], select, textarea { width:100%; min-height:38px; padding:8px 12px; border:1px solid var(--border); border-radius:8px; font:400 14px var(--sans); color:var(--ink); background:#fff; outline:none; }
input:focus, select:focus, textarea:focus { border-color:var(--teal); box-shadow:0 0 0 3px rgba(14,124,134,.15); }
textarea { resize:vertical; }
.field { margin-bottom:14px; }
.row { display:flex; gap:12px; flex-wrap:wrap; align-items:center; }
.footer { margin-top:40px; text-align:center; color:var(--muted); font:500 12px var(--sans); }
.footer a { color:var(--teal); }
@media (max-width:720px) { .top { height:auto; padding:10px 14px; flex-wrap:wrap; gap:10px 16px; } .top .right { width:100%; margin-left:0; } .wrap { padding:18px 14px 48px; } h1 { font-size:28px; } }

/* ---- Console additions (auth, nav user, toasts, drawers, tabs, prose) ---- */
input[type=email], input[type=password], input[type=url], input[type=search] { width:100%; min-height:38px; padding:8px 12px; border:1px solid var(--border); border-radius:8px; font:400 14px var(--sans); color:var(--ink); background:#fff; outline:none; }
input[readonly] { background:var(--bg2); color:var(--muted); }
.top nav a.nav-user { display:none; }
.top .right .name { color:var(--ink); font-weight:600; max-width:180px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.top .right .role { font:600 10px var(--sans); letter-spacing:.1em; text-transform:uppercase; color:var(--teal); background:rgba(20,184,166,.12); padding:2px 8px; border-radius:999px; }
.top .right .btn.sm { min-height:28px; }
.btn.ghost { border-color:transparent; background:transparent; }
.btn.danger { color:#B91C1C; border-color:#FECACA; background:#fff; }
.btn.danger:hover { color:#fff; background:#B91C1C; border-color:#B91C1C; }
.btn.amber { color:#78350F; border-color:#FDE68A; background:#FFFBEB; }
.btn .spin { width:12px; height:12px; border:2px solid currentColor; border-right-color:transparent; border-radius:999px; animation:spin .7s linear infinite; }
@keyframes spin { to { transform:rotate(360deg); } }
.spinner { display:inline-block; width:18px; height:18px; border:2px solid var(--border); border-top-color:var(--teal); border-radius:999px; animation:spin .7s linear infinite; vertical-align:middle; }
.notice { display:flex; gap:10px; align-items:flex-start; padding:10px 14px; border-radius:8px; font:500 13px/1.45 var(--sans); margin:0 0 18px; border:1px solid var(--border); background:#fff; color:var(--ink); }
.notice.info { background:rgba(34,211,238,.1); border-color:rgba(34,211,238,.4); color:#0E4F55; }
.notice.warn { background:#FFFBEB; border-color:#FDE68A; color:#78350F; }
.notice.error { background:#FEF2F2; border-color:#FECACA; color:#991B1B; }
.notice b { font-weight:700; }
.notice .x { margin-left:auto; border:0; background:none; cursor:pointer; color:inherit; font-size:16px; line-height:1; padding:0 2px; }
.empty { padding:26px 18px; text-align:center; color:var(--muted); font:400 14px/1.5 var(--sans); }
.empty b { display:block; color:var(--ink); font-weight:600; margin-bottom:4px; }
.muted { color:var(--muted); }
.small { font-size:12px; }
.right-align { text-align:right; }
.num { text-align:right; font-variant-numeric:tabular-nums; }
th.num { text-align:right; }
.scroll { overflow-x:auto; -webkit-overflow-scrolling:touch; }
.kv { display:grid; grid-template-columns:max-content 1fr; gap:8px 16px; font-size:14px; }
.kv dt { color:var(--muted); } .kv dd { margin:0; min-width:0; overflow-wrap:anywhere; }
.tabs { display:flex; gap:2px; border-bottom:1px solid var(--border); padding:0 10px; background:var(--bg); border-radius:12px 12px 0 0; }
.tabs button { border:0; background:none; padding:11px 12px; font:600 13px var(--sans); color:var(--muted); cursor:pointer; border-bottom:2px solid transparent; margin-bottom:-1px; }
.tabs button.active { color:var(--teal); border-bottom-color:var(--teal); }
.tabs button:hover { color:var(--ink); }
.switch { position:relative; display:inline-block; width:36px; height:20px; flex:none; }
.switch input { opacity:0; width:0; height:0; }
.switch i { position:absolute; inset:0; background:#CBD5E1; border-radius:999px; transition:.15s; cursor:pointer; }
.switch i:before { content:''; position:absolute; width:16px; height:16px; left:2px; top:2px; background:#fff; border-radius:999px; transition:.15s; }
.switch input:checked + i { background:var(--teal2); }
.switch input:checked + i:before { transform:translateX(16px); }
.switch input:disabled + i { opacity:.5; cursor:not-allowed; }
.toast-host { position:fixed; right:18px; bottom:18px; z-index:200; display:flex; flex-direction:column; gap:8px; max-width:min(380px,calc(100vw - 36px)); }
.toast { padding:10px 14px; border-radius:8px; background:var(--navy); color:#fff; font:500 13px/1.4 var(--sans); box-shadow:0 8px 24px rgba(11,31,58,.3); animation:toastin .18s ease-out; }
.toast.ok { background:#0E7C86; } .toast.error { background:#B91C1C; } .toast.warn { background:#B45309; }
@keyframes toastin { from { opacity:0; transform:translateY(8px); } to { opacity:1; transform:none; } }
.drawer-bg { position:fixed; inset:0; background:rgba(11,31,58,.35); z-index:100; display:none; }
.drawer-bg.open { display:block; }
.drawer { position:fixed; top:0; right:0; bottom:0; width:min(720px,100vw); background:var(--bg); z-index:101; transform:translateX(100%); transition:transform .2s ease; display:flex; flex-direction:column; box-shadow:-8px 0 30px rgba(11,31,58,.2); }
.drawer.open { transform:none; }
.drawer .dh { display:flex; align-items:center; gap:12px; padding:16px 22px; background:#fff; border-bottom:1px solid var(--border); }
.drawer .dh h2 { font-size:22px; }
.drawer .db { padding:18px 22px 40px; overflow-y:auto; flex:1; }
.modal-bg { position:fixed; inset:0; background:rgba(11,31,58,.45); z-index:120; display:none; align-items:center; justify-content:center; padding:20px; }
.modal-bg.open { display:flex; }
.modal { background:#fff; border-radius:14px; width:min(560px,100%); max-height:90vh; overflow:auto; box-shadow:0 20px 60px rgba(11,31,58,.35); }
.modal .mh { display:flex; align-items:center; gap:12px; padding:16px 20px; border-bottom:1px solid var(--border); }
.modal .mb { padding:18px 20px; }
.modal .mf { display:flex; gap:10px; justify-content:flex-end; padding:14px 20px; border-top:1px solid var(--border); background:var(--bg); border-radius:0 0 14px 14px; }
.list { list-style:none; margin:0; padding:0; }
.list li { display:flex; align-items:center; gap:10px; padding:10px 0; border-bottom:1px solid var(--border); font-size:14px; }
.list li:last-child { border-bottom:0; }
.pill.tiny { font-size:10px; padding:1px 7px; }
.pill.err { background:#FEF2F2; color:#B91C1C; }
.pill.draft { background:var(--bg2); color:var(--muted); } .pill.review { background:#FFFBEB; color:#B45309; } .pill.published { background:rgba(20,184,166,.12); color:#0E7C86; } .pill.archived { background:#F1F5F9; color:#94A3B8; }
.link-btn { border:0; background:none; color:var(--teal); font:600 13px var(--sans); cursor:pointer; padding:0; }
.link-btn:hover { text-decoration:underline; }
code.inline { font:400 12.5px var(--mono); background:var(--bg2); padding:1px 5px; border-radius:4px; }
.copybox { display:flex; gap:8px; align-items:center; }
.copybox input { flex:1; }
.prose > :first-child { margin-top:0; }
.prose h1 { font:400 28px/1.2 var(--serif); margin:0 0 14px; }
.prose h2 { font:400 22px/1.25 var(--serif); margin:22px 0 10px; }
.prose h3 { font:600 16px/1.3 var(--sans); margin:18px 0 8px; }
.prose h4, .prose h5, .prose h6 { font:600 14px/1.3 var(--sans); margin:16px 0 6px; }
.prose p { margin:0 0 12px; }
.prose ul, .prose ol { margin:0 0 12px; padding-left:22px; }
.prose li { margin:3px 0; }
.prose hr { border:0; border-top:1px solid var(--border); margin:18px 0; }
.prose blockquote { margin:0 0 12px; padding:8px 14px; border-left:3px solid var(--teal2); background:rgba(20,184,166,.06); border-radius:0 8px 8px 0; }
.prose blockquote > :last-child { margin-bottom:0; }
.prose code { font:400 12.5px var(--mono); background:var(--bg2); padding:1px 5px; border-radius:4px; }
.prose pre { margin:0 0 12px; padding:12px 14px; background:var(--navy); color:#E2E8F0; border-radius:8px; overflow-x:auto; font:400 12.5px/1.5 var(--mono); }
.prose pre code { background:none; padding:0; color:inherit; font-size:inherit; }
.prose table { margin:0 0 14px; font-size:13px; }
.prose img { max-width:100%; border-radius:8px; }
.prose a { text-decoration:underline; }
.ab { margin:0 0 14px; border:1px solid var(--border); border-left:4px solid var(--amber); border-radius:8px; background:#fff; overflow:hidden; }
.ab .ab-hd { display:flex; align-items:center; gap:8px; padding:7px 12px; background:#FFFBEB; font:600 12px var(--sans); color:#78350F; border-bottom:1px solid #FDE68A; }
.ab .ab-hd .ab-ic { color:var(--amber); }
.ab pre { margin:0; background:#fff; color:var(--ink); border-radius:0; padding:10px 14px; }
.ab.section { border-left-color:var(--teal2); }
.ab.section .ab-hd { background:rgba(20,184,166,.08); color:#0E4F55; border-bottom-color:rgba(20,184,166,.3); }
.page-loading { padding:60px 0; text-align:center; color:var(--muted); font:500 14px var(--sans); }
.page-loading .spinner { margin-right:8px; }
.auth-wrap { min-height:calc(100vh - 64px); display:grid; place-items:center; padding:32px 16px 64px; }
.auth { width:100%; max-width:420px; }
.auth .card .bd { padding:26px 26px 22px; }
.auth h1 { font-size:28px; margin-bottom:4px; }
.auth .switcher { display:flex; gap:14px; justify-content:center; margin-top:16px; font:500 13px var(--sans); color:var(--muted); }
.auth .btn.block { width:100%; justify-content:center; min-height:42px; }
.auth .alt { display:flex; gap:10px; margin-top:12px; }
.auth .alt .btn { flex:1; justify-content:center; }
.auth .foot { margin-top:22px; text-align:center; }
.auth .err { color:#B91C1C; font:500 13px var(--sans); margin:-4px 0 12px; }
@media (max-width:720px) { .drawer { width:100vw; } .top .right .name { max-width:120px; } }