:root{--font-sora:"Sora";--font-manrope:"Manrope";--font-jbmono:"JetBrains Mono";--font-sans:"Inter";--font-serif:"Fraunces";--background:#F6F5F1;--foreground:#1C1B18;--card:#fff;--line:#e5e7eb;--muted:#64748b;--blue:#2563eb}
[data-theme="dark"]{--background:#0a1020;--foreground:#e2e8f0;--card:#111a2e;--line:#1e293b;--muted:#94a3b8;color-scheme:dark}
*{box-sizing:border-box}
body{margin:0;background:var(--background);color:var(--foreground);font-family:var(--font-sans),system-ui,sans-serif}
a{color:var(--blue)}
.animate-spin{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
.layout{display:flex;min-height:100vh}
.side{width:236px;flex:none;background:#0B1226;color:#cbd5e1;padding:18px 12px;display:flex;flex-direction:column;gap:14px;position:sticky;top:0;height:100vh;overflow:auto}
.side .brand img{height:40px;width:auto;display:block;margin:2px 8px 8px}
.side nav{display:flex;flex-direction:column;gap:2px}
.side nav a{color:#cbd5e1;text-decoration:none;padding:10px 12px;border-radius:10px;font-size:14px;font-weight:500}
.side nav a:hover{background:rgba(255,255,255,.07)}.side nav a.on{background:#1d4ed8;color:#fff}
.side .sep{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:#64748b;padding:14px 12px 4px}
.side .out{margin-top:14px;opacity:.75}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.top{display:flex;align-items:center;gap:10px;justify-content:flex-end;padding:10px 18px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--card) 80%,transparent)}
.top .who{font-size:14px;color:var(--muted);margin-right:auto}
.top .burger{display:none}.themebtn,.burger{border:0;background:#dbeafe;color:#1d4ed8;width:36px;height:36px;border-radius:99px;font-size:17px;cursor:pointer}
.content{padding:16px}
@media(max-width:860px){.side{position:fixed;z-index:50;left:-260px;transition:left .2s}.side.open{left:0}.top .burger{display:block}.top .who{margin-right:auto}}
/* flashcard HTML exported from the deck */
.fc-html{line-height:1.6}.fc-html img{max-width:100%;border-radius:.5rem}.fc-html .cloze-answer{color:#047857;font-weight:600}
.fc-html .fa-ref{margin-top:1rem;border-radius:.75rem;border:1px solid #e5e7eb;background:#f5f6f6;padding:.75rem}
.fc-html .fa-caption{margin-top:.5rem;font-size:.75rem;font-weight:500;color:#6b7373}.fc-html .qid-tag{margin-top:.75rem;font-size:.75rem;color:#9ca3a3}
/* plain pages (login, admin) */
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px}
.narrow{max-width:420px;margin:8vh auto;padding:0 16px}
.card h1{margin:0 0 6px;font-family:var(--font-serif),serif;font-style:italic;font-size:26px}
.card p.sub{color:var(--muted);margin:0 0 16px;font-size:14px}
label.f{display:block;margin:12px 0;font-size:13px;font-weight:600}
label.f input,label.f select{display:block;width:100%;margin-top:5px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--background);color:var(--foreground);font:inherit}
.btn{display:inline-block;border:0;border-radius:10px;background:var(--blue);color:#fff;padding:10px 16px;font:600 14px var(--font-sans);cursor:pointer;text-decoration:none}
.btn.ghost{background:transparent;color:var(--blue);border:1px solid var(--line)}.btn.sm{padding:6px 10px;font-size:12px}.btn.red{background:#e11d48}
.err{background:#fee2e2;color:#991b1b;padding:10px 12px;border-radius:10px;font-size:14px;margin:10px 0}.ok{background:#dcfce7;color:#166534;padding:10px 12px;border-radius:10px;font-size:14px;margin:10px 0}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:14px 0}
.tile{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px}.tile b{display:block;font-size:26px}.tile span{font-size:12px;color:var(--muted)}
table.t{width:100%;border-collapse:collapse;font-size:13px;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
table.t th{text-align:left;padding:10px;background:rgba(100,116,139,.12);font-weight:600}table.t td{padding:10px;border-top:1px solid var(--line);vertical-align:top}
.scroll{overflow-x:auto}.badge{display:inline-block;padding:2px 8px;border-radius:99px;font-size:11px;font-weight:600;background:#e0f2fe;color:#075985;margin:1px}
.b-active{background:#dcfce7;color:#166534}.b-quiet{background:#fef3c7;color:#92400e}.b-inactive{background:#fee2e2;color:#991b1b}.b-never{background:#e2e8f0;color:#334155}
.toolbar{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.toolbar input,.toolbar select{padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--foreground);font:inherit}
details summary{cursor:pointer;color:var(--blue);font-size:12px}.muted{color:var(--muted);font-size:12px}