:root{--bg:#f4f4f1;--surface:#fff;--ink:#1d1d1b;--muted:#6f6f69;--line:#e2e2dc;--accent:#2f6df6;--accent-ink:#fff;--ok:#1f9d55;--bad:#d64545;--ghost:#b5b5ad;--chip:#ecece6;--radius:16px;--mono:ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:var(--ink);background:var(--bg);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}@media (prefers-color-scheme:dark){:root{--bg:#141413;--surface:#1e1e1c;--ink:#f0f0ea;--muted:#9a9a92;--line:#2f2f2c;--accent:#5b8cff;--ok:#3ccf7f;--bad:#ff6b6b;--ghost:#5c5c56;--chip:#2a2a27;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}body{background:var(--bg);min-height:100dvh;margin:0}a{color:inherit;text-decoration:none}h1{margin:0;font-size:1.5rem}h2{margin:0 0 .35rem;font-size:1.15rem}kbd{font:600 .7rem 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var(--line);background:var(--surface);cursor:pointer;border-radius:10px;flex:none;place-items:center;width:38px;height:38px;font-size:1.1rem;display:inline-grid}.link{color:var(--muted);cursor:pointer;background:0 0;border:0;font-size:.85rem;text-decoration:underline}.settings{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.settings--compact{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:12px}.seg{background:var(--chip);border-radius:12px;padding:3px;display:inline-flex}.seg button{cursor:pointer;color:var(--muted);background:0 0;border:0;border-radius:9px;padding:7px 12px;font-size:.88rem}.seg button.on{background:var(--surface);color:var(--ink);font-weight:600;box-shadow:0 1px 2px #00000014}.field{color:var(--muted);align-items:center;gap:6px;font-size:.85rem;display:inline-flex}.field select{font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:5px 6px}.course-head{align-items:center;gap:12px;display:flex}.chapter-grid{grid-template-columns:repeat(auto-fill,minmax(48px,1fr));gap:8px;display:grid}.tile{aspect-ratio:1;background:var(--surface);border:1px solid var(--line);color:var(--muted);border-radius:10px;place-items:center;font-size:.85rem;display:grid}.tile:hover{border-color:var(--accent)}.tile--done{background:color-mix(in srgb, var(--ok) 15%, var(--surface));color:var(--ok);border-color:#0000}.tile--next{border:2px solid var(--accent);color:var(--accent);font-weight:700}.exercise{gap:12px}.ex-head{align-items:center;gap:10px;display:flex}.count{color:var(--muted);text-align:right;min-width:3.2em;font-size:.85rem}.ex-card{cursor:text;flex-direction:column;gap:18px;min-height:300px;display:flex}.ex-meta{justify-content:space-between;align-items:center;display:flex}.chip{background:var(--chip);color:var(--muted);border-radius:99px;padding:4px 10px;font-size:.75rem;font-weight:600}.chip--word{background:color-mix(in srgb, var(--accent) 15%, var(--surface));color:var(--accent)}.dots{gap:5px;display:flex}.dots i{background:var(--line);border-radius:50%;width:7px;height:7px}.dots i.past{background:var(--ok)}.dots i.now{background:var(--accent)}.prompt{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:10px;min-height:64px;display:flex}.es{margin:0;font-size:1.3rem;line-height:1.4}.es--small{color:var(--muted);font-size:1rem}.play{cursor:pointer;background:var(--accent);width:64px;height:64px;color:var(--accent-ink);border:0;border-radius:50%;place-items:center;display:grid}.play:active{transform:scale(.95)}.typing{padding:8px 0;position:relative}.typing--shake{animation:.35s shake}@keyframes shake{20%,60%{transform:translate(-6px)}40%,80%{transform:translate(6px)}}.typer{font:500 1.7rem/1.6 var(--mono);text-align:center;word-break:keep-all;min-height:2.8rem}.word{white-space:nowrap;display:inline-block}.sp{display:inline}.ch{min-width:.6ch;transition:color 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var(--line);flex-wrap:wrap;justify-content:center;gap:8px;display:flex;position:fixed;bottom:0;left:0;right:0}.summary{text-align:center;flex-direction:column;gap:18px;padding:32px 20px;display:flex}.stats{justify-content:center;gap:28px;display:flex}.stats div{flex-direction:column;display:flex}.stats strong{font-size:2rem}.stats span{color:var(--muted);font-size:.85rem}@media (width<=560px){.typer{font-size:1.3rem}.controls .btn{flex:40%;padding:10px 8px}kbd{display:none}.seg button{padding:7px 9px}}.top-bar{justify-content:flex-end;display:flex}.sync-badge{color:var(--muted);border:1px solid var(--line);background:var(--surface);border-radius:99px;align-items:center;gap:6px;padding:6px 10px;font-size:.8rem;display:inline-flex}.sync-badge i{background:var(--ghost);border-radius:50%;width:8px;height:8px}.sync-badge--idle i{background:var(--ok)}.sync-badge--syncing i{background:var(--accent);animation:1s steps(2,end) infinite blink}.sync-badge--error i{background:var(--bad)}.account{flex-direction:column;gap:14px;display:flex}.account-email{margin:0;font-size:1.15rem;font-weight:600}.input-field{color:var(--muted);flex-direction:column;gap:6px;font-size:.85rem;display:flex}.input-field input{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:16px}.input-field input:focus{outline:2px solid var(--accent);outline-offset:-1px}.ok{color:var(--ok);margin:0}.account .error{margin:0}.tile--partial{background:color-mix(in srgb, var(--accent) 12%, var(--surface))}.resume-note{color:var(--muted);text-align:center;margin:0;font-size:.85rem}.en-text{margin:0;font-size:1.3rem;line-height:1.4}.en-text--sub{color:var(--muted);font-size:1rem;font-style:italic}.stats-panel{gap:14px;display:grid}.week-card{flex-direction:column;gap:14px;display:flex}.week-head{justify-content:space-between;align-items:center;gap:8px;display:flex}.week-head h2{margin:0}.streak{background:var(--chip);border-radius:99px;padding:4px 10px;font-size:.85rem;font-weight:600}.ring{width:150px;height:150px;margin:0 auto;position:relative}.ring svg{width:100%;height:100%;transform:rotate(-90deg)}.ring-track,.ring-fill{fill:none;stroke-width:9px}.ring-track{stroke:var(--chip)}.ring-fill{stroke:#ff8a3d;stroke-linecap:round;transition:stroke-dashoffset .6s}.ring-label{flex-direction:column;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.ring-label strong{font-size:2.2rem;line-height:1}.ring-label span:last-child{color:var(--muted);font-size:.85rem}.ring-flame{font-size:1.4rem}.week-days{grid-template-columns:repeat(7,1fr);gap:6px;display:grid}.week-day{flex-direction:column;align-items:center;gap:6px;font-size:.8rem;display:flex}.week-day i{background:var(--chip);border-radius:50%;place-items:center;width:36px;height:36px;font-size:.85rem;font-style:normal;font-weight:600;display:grid}.week-day i.future{border:1px 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10px;font-size:.8rem}.err-count{color:var(--bad);font-size:.85rem;font-weight:700}.forecast{grid-template-columns:repeat(7,1fr);gap:6px;height:110px;display:grid}.forecast-col{flex-direction:column;justify-content:flex-end;align-items:center;gap:4px;font-size:.75rem;display:flex}.forecast-col i{background:#ff8a3d;border-radius:4px 4px 0 0;width:60%;min-height:2px}.forecast-n{font-weight:600}.filters{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.kpi-grid{grid-template-columns:repeat(2,1fr);gap:18px;display:grid}.kpi-grid div,.kpis--plain div{flex-direction:column;gap:4px;display:flex}.kpi-grid strong{font-size:1.6rem}.kpi-hero{color:#ff8a3d}.kpis--plain{background:0 0;border:0;margin-top:10px;padding:0}.kpis--3{grid-template-columns:repeat(3,1fr)}.heatmap-wrap{margin-top:10px;overflow-x:auto}.heatmap{gap:2px;min-width:640px;display:grid}.hm-week{grid-template-rows:14px repeat(7,1fr);gap:2px;display:grid}.hm-month{color:var(--muted);white-space:nowrap;font-size:.65rem}.hm-cell{aspect-ratio:1;background:var(--chip);border-radius:2px;display:block}.hm-lx{background:0 0}.hm-l1{background:color-mix(in srgb, var(--accent) 30%, var(--surface))}.hm-l2{background:color-mix(in srgb, var(--accent) 55%, var(--surface))}.hm-l3{background:color-mix(in srgb, var(--accent) 80%, var(--surface))}.hm-l4{background:var(--accent)}.hm-legend{color:var(--muted);flex-wrap:wrap;gap:6px 14px;margin-top:10px;font-size:.75rem;display:flex}.hm-legend span{align-items:center;gap:4px;display:inline-flex}.hm-legend .hm-cell{width:10px}.bars{align-items:end;gap:2px;height:160px;margin-top:14px;padding-bottom:20px;display:grid}.bar-col{justify-content:center;align-items:flex-end;height:100%;display:flex;position:relative}.bar-col i{background:var(--accent);border-radius:4px 4px 0 0;width:100%;max-width:22px}.bar-col:hover i{filter:brightness(1.2)}.bar-label{color:var(--muted);white-space:nowrap;font-size:.65rem;position:absolute;bottom:-20px}.chart-empty{text-align:center;padding:30px 0}.data-table{border-collapse:collapse;width:100%;margin-top:12px;font-size:.85rem}.data-table th{text-align:left;color:var(--muted);border-bottom:1px solid var(--line);padding:6px 4px;font-weight:500}.data-table td{border-bottom:1px solid var(--line);padding:8px 4px}.how summary{cursor:pointer}@media (width<=560px){.kpis--3{grid-template-columns:1fr}.data-table{font-size:.75rem}}.update-toast{z-index:20;left:50%;bottom:calc(80px + env(safe-area-inset-bottom));background:var(--surface);border:1px solid var(--accent);border-radius:14px;flex-wrap:wrap;align-items:center;gap:8px;width:min(520px,100% - 32px);padding:12px 14px;font-size:.9rem;display:flex;position:fixed;transform:translate(-50%);box-shadow:0 8px 24px #00000040}.update-toast span{flex:180px}.page{padding-top:calc(20px + env(safe-area-inset-top));padding-left:max(16px, env(safe-area-inset-left));padding-right:max(16px, env(safe-area-inset-right))}html{-webkit-text-size-adjust:100%}body{overscroll-behavior-y:none;-webkit-tap-highlight-color:transparent}.row--start{justify-content:flex-start}.offline-card{flex-direction:column;gap:10px;display:flex}.install-banner{align-items:center;gap:12px;padding:12px 14px;display:flex}.install-banner img{border-radius:10px;flex:none}.install-banner>div{flex:1;min-width:0}.install-banner .small{margin:2px 0 0}.guide ol{flex-direction:column;gap:8px;margin:10px 0 0;padding-left:20px;line-height:1.45;display:flex}.guide--active{border-color:var(--accent)}.inline-icon{vertical-align:-3px;color:var(--accent)}.link-inline{color:var(--accent);text-decoration:underline}