:root{--bg:#FBFAF5;--surface:#FFFFFF;--surface-2:#F3F4EE;--ink:#182420;--muted:#59635C;--subtle:#8A928A;--rule:#E4E6DF;--rule-strong:#CBD0C6;--accent:#1B6B4B;--accent-ink:#124A34;--accent-soft:#E8F1EB;--on-accent:#FFFFFF;--correct:#1B6B4B;--correct-soft:#E8F1EB;--wrong:#B23A2E;--wrong-soft:#F5E7E4;--shadow:0 1px 2px rgba(24,36,32,.05),0 10px 34px rgba(24,36,32,.06);--radius:16px;--radius-sm:11px}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0F1512;--surface:#161D19;--surface-2:#1E2622;--ink:#E7EAE4;--muted:#98A29A;--subtle:#6E776F;--rule:#262E29;--rule-strong:#3A443E;--accent:#5BC48D;--accent-ink:#A7E3C4;--accent-soft:rgba(91,196,141,.13);--on-accent:#06130D;--correct:#5BC48D;--correct-soft:rgba(91,196,141,.13);--wrong:#E0725F;--wrong-soft:rgba(224,114,95,.12);--shadow:0 1px 2px rgba(0,0,0,.3),0 12px 38px rgba(0,0,0,.38)}}:root[data-theme=dark]{--bg:#0F1512;--surface:#161D19;--surface-2:#1E2622;--ink:#E7EAE4;--muted:#98A29A;--subtle:#6E776F;--rule:#262E29;--rule-strong:#3A443E;--accent:#5BC48D;--accent-ink:#A7E3C4;--accent-soft:rgba(91,196,141,.13);--on-accent:#06130D;--correct:#5BC48D;--correct-soft:rgba(91,196,141,.13);--wrong:#E0725F;--wrong-soft:rgba(224,114,95,.12);--shadow:0 1px 2px rgba(0,0,0,.3),0 12px 38px rgba(0,0,0,.38)}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Hanken Grotesk,Segoe UI,Roboto,sans-serif;font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased;overscroll-behavior-y:none}::selection{background:var(--accent);color:var(--on-accent)}h1,h2,h3{font-family:Newsreader,Georgia,Times New Roman,serif;font-weight:600;letter-spacing:-.01em;line-height:1.15;text-wrap:balance;margin:0}a{color:var(--accent-ink)}button{font:inherit;cursor:pointer}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}input,textarea{font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--rule-strong);border-radius:var(--radius-sm);padding:12px 14px;width:100%}.mono{font-family:IBM Plex Mono,ui-monospace,SFMono-Regular,Menlo,monospace;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.app{min-height:100dvh;max-width:560px;margin:0 auto;padding:calc(env(safe-area-inset-top) + 14px) calc(env(safe-area-inset-right) + 18px) calc(env(safe-area-inset-bottom) + 92px) calc(env(safe-area-inset-left) + 18px)}.card{background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);box-shadow:var(--shadow)}.eyebrow{font-family:IBM Plex Mono,ui-monospace,monospace;font-size:11.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--accent-ink)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:0 20px;border-radius:var(--radius-sm);border:1px solid transparent;background:var(--accent);color:var(--on-accent);font-weight:600;width:100%}.btn:active{transform:translateY(1px)}.btn.ghost{background:transparent;color:var(--ink);border-color:var(--rule-strong)}.btn:disabled{opacity:.45;pointer-events:none}.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:40;display:flex;justify-content:space-around;padding:8px 0 calc(env(safe-area-inset-bottom) + 8px);background:color-mix(in srgb,var(--surface) 88%,transparent);-webkit-backdrop-filter:saturate(1.4) blur(14px);backdrop-filter:saturate(1.4) blur(14px);border-top:1px solid var(--rule)}.tabbar a{display:flex;flex-direction:column;align-items:center;gap:3px;padding:6px 14px;color:var(--subtle);text-decoration:none;font-size:11px;font-weight:600;letter-spacing:.02em}.tabbar a[data-active=true]{color:var(--accent-ink)}.tabbar svg{width:22px;height:22px}@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}