:root{--bg:oklch(9% .012 155);--surface:oklch(15% .014 155);--surface-deep:oklch(11.5% .013 155);--surface-hover:oklch(19% .016 155);--border:oklch(24% .018 155);--text:oklch(96% .006 155);--muted:oklch(63% .02 155);--faint:oklch(62% .018 155);--emerald:oklch(79% .15 156);--emerald-dim:oklch(79% .15 156/.12);--amber:oklch(72% .11 75);--danger:oklch(62% .18 25);--radius:1.25rem;--font-display:"Comfortaa", system-ui, sans-serif;--sans:"Inter", system-ui, -apple-system, "Segoe UI", sans-serif;--mono:"JetBrains Mono", ui-monospace, Consolas, monospace;--ease-out:cubic-bezier(.16, 1, .3, 1);--dur-fast:.15s;--dur:.25s;--shadow-mid:0 8px 24px oklch(5% .01 155/.35);--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;color:var(--text);background:var(--bg);font:16px/1.5 var(--sans);-webkit-font-smoothing:antialiased}*{box-sizing:border-box}html,body,#root{min-height:100dvh}body{background-color:var(--bg);color:var(--text);margin:0}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-thumb{background:var(--border);border-radius:999px}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip{z-index:100;background:var(--emerald);color:#06110b;border-radius:8px;padding:10px 16px;font-weight:700;transition:top .18s;position:absolute;top:-48px;left:12px}.skip:focus-visible{outline-offset:2px;top:12px}button{touch-action:manipulation}:focus-visible{outline:2px solid var(--emerald);outline-offset:2px;border-radius:4px}:focus:not(:focus-visible){outline:none}#root{max-width:1020px;margin:0 auto;padding:0 16px 120px}.shell{gap:24px;display:flex}.side{display:none}main.col{flex:1;width:100%;min-width:0}.side .brand{font-size:22px}.side nav{flex-direction:column;gap:4px;display:flex}.side nav button{min-height:44px;color:var(--muted);font:inherit;cursor:pointer;transition:color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);background:0 0;border:none;border-radius:12px;align-items:center;gap:12px;padding:10px 12px;font-size:14px;font-weight:500;display:flex}.side nav button:hover{color:var(--text);background:var(--surface)}.side nav button.active{color:var(--text);background:var(--emerald-dim);box-shadow:inset 2px 0 0 var(--emerald)}.side nav button svg{flex-shrink:0}.side nav button.active svg{color:var(--emerald)}.side .foot{font-family:var(--mono);color:var(--faint);margin-top:auto;font-size:11px}header.top{justify-content:space-between;align-items:flex-start;gap:12px;padding:24px 4px 16px;display:flex}.brand{font-family:var(--font-display);letter-spacing:-.3px;align-items:center;gap:10px;font-size:21px;font-weight:700;display:flex}.brandmark{width:auto;height:36px}.side .brandmark{height:32px}.brand span{color:var(--emerald)}.tagline{color:var(--faint);letter-spacing:.4px;font-size:12px;font-family:var(--mono)}.net-pill{font-family:var(--mono);letter-spacing:.6px;border:1px solid var(--border);color:var(--muted);white-space:nowrap;border-radius:999px;align-items:center;padding:7px 14px;font-size:11px;font-weight:600;display:inline-flex}.net-pill.off{color:oklch(12% .02 155);background:var(--emerald);border-color:var(--emerald);font-weight:700}.net-pill.on{color:var(--emerald);border-color:oklch(79% .15 156/.45)}.view-head{padding:6px 4px 18px}.view-eyebrow{font-family:var(--mono);letter-spacing:1.6px;text-transform:uppercase;color:var(--emerald);margin-bottom:6px;font-size:11px;font-weight:600}.view-title{font-family:var(--font-display);letter-spacing:-.5px;margin:0 0 6px;font-size:26px;font-weight:700;line-height:1.15}.view-lede{color:var(--muted);max-width:52ch;margin:0;font-size:14px}.stats{grid-template-columns:repeat(4,1fr);gap:10px;padding:0 0 20px;display:grid}.stat{background:var(--surface);border:1px solid var(--border);border-radius:16px;flex-direction:column;gap:6px;min-width:0;padding:14px 14px 12px;display:flex}.stat-l{font-family:var(--mono);letter-spacing:1.2px;text-transform:uppercase;color:var(--faint);order:-1;font-size:10px;font-weight:600}.stat-n{color:var(--text);letter-spacing:-.5px;font-variant-numeric:tabular-nums;font-size:30px;font-weight:650;line-height:1}.stat.hot{background:var(--emerald-dim);border-color:oklch(79% .15 156/.4)}.stat.hot .stat-n{color:var(--emerald)}@media (width<=560px){.stats{grid-template-columns:repeat(2,1fr)}.stat-n{font-size:22px}header.top{flex-wrap:wrap}}nav.tabs{padding:8px 12px calc(8px + env(safe-area-inset-bottom));border-top:1px solid var(--border);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);z-index:20;background:oklch(12% .013 155/.94);gap:4px;display:flex;position:fixed;bottom:0;left:0;right:0}nav.tabs button{min-height:56px;color:var(--muted);font:inherit;cursor:pointer;background:0 0;border:none;border-radius:10px;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:3px;padding:8px 4px;font-size:11px;font-weight:500;display:flex}nav.tabs button.active{color:var(--emerald)}nav.tabs button.active:after{content:"";background:var(--emerald);border-radius:50%;width:4px;height:4px}nav.tabs button .count{font-size:10px;font-family:var(--mono);background:var(--emerald);color:oklch(12% .02 155);border-radius:999px;padding:0 6px;font-weight:700}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;padding:18px}.card-interactive{transition:transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out)}.card-interactive:hover{box-shadow:var(--shadow-mid);transform:translateY(-2px)}.card-interactive:active{transition-duration:80ms;transform:translateY(-1px)scale(.995)}.press{transition:transform .1s var(--ease-out)}.press:active{transform:scale(.96)}@keyframes fade-in-up{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.fade-in-up{animation:fade-in-up var(--dur) var(--ease-out) both}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.skeleton{background:linear-gradient(90deg, var(--surface) 25%, var(--surface-hover) 50%, var(--surface) 75%);background-size:200% 100%;border-radius:6px;animation:1.6s ease-in-out infinite shimmer}.card h3{letter-spacing:-.2px;margin:0 0 4px;font-size:17px;font-weight:650}.card-foot{justify-content:space-between;align-items:center;gap:12px;margin-top:10px;display:flex}.card-foot p{margin:0}.card-foot .btn{flex-shrink:0}.card p{color:var(--muted);margin:4px 0;font-size:14px}.card .meta{font-family:var(--mono);color:var(--faint);font-size:12px}.card .body{color:var(--text)}.card .explain{color:var(--muted);white-space:pre-line;font-size:14px}.card.sub{background:var(--surface-deep);border-left:2px solid oklch(79% .15 156/.5)}.card.empty{text-align:center;border-style:dashed;padding:48px 20px}.empty-icon{background:var(--emerald-dim);width:52px;height:52px;color:var(--emerald);border-radius:16px;justify-content:center;align-items:center;margin:0 auto 14px;display:flex}.card.empty h3{font-family:var(--font-display);font-size:18px}.card.empty .row{justify-content:center}.row{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}button.btn{font:inherit;border:1px solid var(--border);background:var(--surface-hover);min-height:44px;color:var(--text);cursor:pointer;transition:border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out), transform .1s var(--ease-out);border-radius:12px;padding:10px 18px;font-size:14px;font-weight:600}button.btn:hover:not(:disabled){border-color:oklch(79% .15 156/.45)}button.btn.primary{background:var(--emerald);border-color:var(--emerald);color:oklch(12% .02 155)}button.btn.primary:hover:not(:disabled){background:oklch(83% .14 156)}button.btn:disabled{opacity:.45;cursor:not-allowed}button.btn.ghost{color:var(--muted);background:0 0;border-color:#0000;font-weight:500}button.btn.ghost:hover:not(:disabled){color:var(--text);background:var(--surface)}.chips{flex-wrap:wrap;gap:8px;padding:0 0 12px;display:flex}.chips button{font:inherit;border:1px solid var(--border);min-width:44px;min-height:44px;color:var(--muted);cursor:pointer;background:0 0;border-radius:999px;padding:7px 14px;font-size:13px}.chips button.active{color:oklch(12% .02 155);background:var(--emerald);border-color:var(--emerald);font-weight:600}textarea.text{border:1px solid var(--border);width:100%;min-height:120px;color:var(--text);font:14px/1.6 var(--sans);resize:vertical;background:oklch(11% .012 155);border-radius:12px;margin-top:10px;padding:12px}.pill{font-family:var(--mono);border:1px solid var(--border);color:var(--muted);border-radius:999px;margin-right:6px;padding:2px 8px;font-size:11px;display:inline-block}.pill.local{color:var(--emerald);border-color:oklch(79% .15 156/.4)}.pill.cloud{color:var(--amber);border-color:oklch(72% .11 75/.4)}.error{color:oklch(80% .1 25);white-space:pre-line;background:oklch(62% .18 25/.08);border:1px solid oklch(62% .18 25/.5);border-radius:12px;margin-top:8px;padding:10px 12px;font-size:13px}img.preview{border:1px solid var(--border);background:var(--surface);border-radius:12px;width:100%;height:auto;min-height:160px;margin-top:12px;display:block}.progress{background:var(--surface-deep);border:1px solid var(--border);border-radius:999px;height:8px;margin:0 0 14px;overflow:hidden}.progress .bar{background:var(--emerald);height:100%;transition:width .25s var(--ease-out);border-radius:999px}.q{margin-top:8px;line-height:1.4}.quiz-opt{text-align:left;border:1px solid var(--border);background:var(--surface-deep);width:100%;min-height:52px;color:var(--text);font:inherit;cursor:pointer;transition:border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);border-radius:14px;align-items:flex-start;gap:12px;margin-top:8px;padding:13px 14px;font-size:14px;line-height:1.45;display:flex}.quiz-opt:hover:not(:disabled){background:var(--surface);border-color:oklch(79% .15 156/.55)}.quiz-opt .qkey{width:26px;height:26px;font-family:var(--mono);background:var(--surface-hover);color:var(--muted);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;margin-top:1px;font-size:12px;font-weight:700;display:inline-flex}.quiz-opt.right{border-color:var(--emerald);background:var(--emerald-dim)}.quiz-opt.right .qkey{background:var(--emerald);color:oklch(12% .02 155)}.quiz-opt.wrong{border-color:var(--danger);background:oklch(62% .18 25/.08)}.quiz-opt.wrong .qkey{color:oklch(80% .1 25);background:oklch(62% .18 25/.25)}.quiz-opt:disabled{cursor:default}.model{background:var(--surface);border-radius:var(--radius);color:var(--muted);border:1px dashed oklch(79% .15 156/.4);margin-bottom:12px;padding:14px 16px;font-size:13px}.model.ready{color:var(--emerald);border-style:solid}.model .dot{background:var(--emerald);border-radius:50%;width:8px;height:8px;margin-right:8px;display:inline-block}.model-row{justify-content:space-between;align-items:center;gap:10px;display:flex}.model .progress{margin:10px 0 0}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@media (width>=900px){.side{flex-direction:column;flex-shrink:0;gap:24px;width:220px;height:100dvh;padding:28px 0;display:flex;position:sticky;top:0}#root{padding-bottom:48px}nav.tabs,header.top .brandcol{display:none}}