:root{--bg:#fbf7f2;--card:#fff;--card-2:#f5efe7;--fg:#2c2c2a;--muted:#6b6a64;--line:#ece4d9;--accent:#d85a30;--accent-hover:#c24e28;--accent-soft:#faece7;--accent-ink:#712b13;--ok:#0f6e56;--ok-soft:#e1f5ee;--warn:#854f0b;--warn-soft:#faeeda;--bad:#a32d2d;--bad-soft:#fcebeb;--on-accent:#fff;--camera:#2c2c2a;--radius:14px;--radius-sm:10px;--shadow:0 1px 2px #3c28140a, 0 6px 20px #3c28140f;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root{--bg:#151514;--card:#1f1f1d;--card-2:#282826;--fg:#f1efe8;--muted:#b4b2a9;--line:#34332f;--accent:#f0997b;--accent-hover:#f5b29a;--accent-soft:#3a2219;--accent-ink:#f5c4b3;--ok:#5dcaa5;--ok-soft:#0f2c24;--warn:#ef9f27;--warn-soft:#33260f;--bad:#f09595;--bad-soft:#3a1a1a;--on-accent:#2c1307;--camera:#0b0b0b;--shadow:none;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}[hidden]{display:none!important}body{background:var(--bg);min-height:100dvh;color:var(--fg);word-break:keep-all;-webkit-font-smoothing:antialiased;flex-direction:column;margin:0;font-family:Pretendard Variable,Pretendard,system-ui,-apple-system,Apple SD Gothic Neo,Malgun Gothic,sans-serif;line-height:1.55;display:flex}h1,h2,h3,p{margin:0}h2{font-size:1.15rem;font-weight:700}button{font:inherit;color:inherit;cursor:pointer}.icon{stroke-width:2px;vertical-align:-.2em;flex:none;width:1.15em;height:1.15em}.icon.big{stroke-width:1.5px;width:44px;height:44px}[data-icon]{display:inline-flex}.btn{border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;gap:6px;padding:10px 18px;font-size:.98rem;font-weight:600;transition:background .15s,border-color .15s,transform 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button.on{background:var(--card);color:var(--fg);box-shadow:var(--shadow)}@media (width<=480px){.brand-name{font-size:.95rem}.modes button .icon{display:none}.modes button{padding:7px 11px;font-size:.88rem}.topbar{padding:10px 12px}}main{flex:1;width:100%;max-width:1180px;margin:0 auto;padding:20px 16px 32px}.intro{gap:28px;max-width:880px;padding-top:32px;display:grid}.eyebrow{color:var(--accent);margin-bottom:10px;font-size:.9rem;font-weight:700}.hero h1{letter-spacing:-.02em;font-size:clamp(2rem,6vw,3.2rem);font-weight:800;line-height:1.2}.lead{color:var(--muted);max-width:620px;margin-top:14px;font-size:1.1rem}.privacy{background:var(--ok-soft);color:var(--ok);border-radius:999px;align-items:center;gap:8px;margin-top:18px;padding:8px 14px;font-size:.92rem;font-weight:600;display:inline-flex}.cta{flex-wrap:wrap;gap:10px;margin-top:24px;display:flex}.how h2,.situation h2{margin-bottom:12px}.how-steps{counter-reset:how;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:0;padding:0;list-style:none;display:grid}.how-steps li{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);gap:4px;padding:18px;display:grid;position:relative}.how-steps li:after{counter-increment:how;content:counter(how);color:var(--line);font-size:1.6rem;font-weight:800;position:absolute;top:14px;right:16px}.how-icon{background:var(--accent-soft);width:42px;height:42px;color:var(--accent-ink);border-radius:12px;justify-content:center;align-items:center;margin-bottom:8px}.how-icon .icon{width:22px;height:22px}.how-steps span:last-child{color:var(--muted);font-size:.92rem}.chips{flex-wrap:wrap;gap:8px;display:flex}.chips button{border:1px solid var(--line);background:var(--card);border-radius:999px;padding:8px 16px;font-weight:600}.chips button.on{background:var(--fg);color:var(--bg);border-color:var(--fg)}.app{grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);align-items:start;gap:20px;display:grid}@media (width<=860px){.app{grid-template-columns:1fr}}.stage{position:sticky;top:76px}@media (width<=860px){.stage{position:static}}.camera{background:var(--camera);aspect-ratio:16/10;box-shadow:var(--shadow);border-radius:20px;max-height:72vh;margin:0 auto;position:relative;overflow:hidden}.camera video,.camera canvas{object-fit:contain;width:100%;height:100%;position:absolute;inset:0}.camera.mirror video,.camera.mirror canvas{transform:scaleX(-1)}.status{white-space:nowrap;color:#fff;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#141412b8;border-radius:999px;padding:8px 16px;font-size:.95rem;font-weight:700;transition:background .2s;position:absolute;bottom:14px;left:50%;transform:translate(-50%)}.status[data-stage=idle]{background:#d85a30eb}.status[data-stage=signing]{background:#0f6e56eb}.status[data-stage=thinking]{background:#854f0beb}.countdown{pointer-events:none;color:#fff;text-shadow:0 4px 24px #00000073;background:#14141240;place-items:center;font-size:clamp(4rem,14vw,8rem);font-weight:800;display:grid;position:absolute;inset:0}.countdown.tick{animation:1s ease-out tick}@keyframes tick{0%{opacity:.4;transform:scale(1.35)}30%{opacity:1;transform:scale(1)}}@media (prefers-reduced-motion:reduce){.countdown.tick{animation:none}}.stepper{gap:6px;margin:12px 0 0;padding:0;list-style:none;display:flex}.stepper li{text-align:center;color:var(--muted);border-top:3px solid var(--line);flex:1;padding-top:8px;font-size:.8rem;font-weight:600}.stepper li.done{border-color:var(--ok);color:var(--ok)}.stepper li.on{border-color:var(--accent);color:var(--fg)}.stage-foot{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:14px;margin-top:4px;display:flex}.zoom{gap:4px;margin-right:auto;display:inline-flex}.zoom .chip{padding:3px 10px;font-size:.85rem}.panel{background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px;gap:16px;min-width:0;padding:20px;display:grid}.panel-head{justify-content:space-between;align-items:baseline;gap:8px;display:flex}.empty{text-align:center;color:var(--muted);justify-items:center;gap:10px;padding:28px 8px;display:grid}.empty .icon{color:var(--accent)}.result{gap:12px;display:grid}.result-title{align-items:center;gap:6px;font-size:1.05rem;font-weight:700;display:flex}.cands{gap:8px;display:grid}.cand{text-align:left;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--card);padding:14px 16px;font-size:1.1rem;transition:border-color .15s,background .15s}.cand:hover{border-color:var(--accent)}.cand.first{background:var(--accent-soft);color:var(--accent-ink);border-color:#0000;font-size:1.2rem;font-weight:700}.tag{background:var(--warn-soft);color:var(--warn);vertical-align:middle;border-radius:6px;margin-right:8px;padding:2px 7px;font-size:.72rem;font-weight:700;display:inline-block}.result>.btn{justify-self:start}.bigview{border-top:1px solid var(--line);gap:12px;padding-top:16px;display:grid}#big-text{font-size:clamp(1.6rem,4vw,2.2rem);font-weight:800;line-height:1.3}.row{flex-wrap:wrap;gap:8px;display:flex}.examples summary{cursor:pointer;padding:4px 0;font-weight:700}.examples .hint{margin:6px 0 4px;font-size:.85rem}#examples{gap:2px;max-height:44vh;margin:0;padding:0;list-style:none;display:grid;overflow:auto}#examples li{border-bottom:1px solid var(--line);padding:10px 0}.ex-top{justify-content:space-between;align-items:center;gap:8px;display:flex}.gloss{color:var(--muted);margin-top:2px;font-size:.85rem;display:block}.gloss a,button.word{color:var(--accent)}button.word{text-underline-offset:2px;font-size:inherit;background:0 0;border:none;padding:0;text-decoration:underline}.player{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);gap:10px;margin-top:14px;padding:14px;display:grid}#lesson-player{box-shadow:none;margin-top:0}.player-head{justify-content:space-between;align-items:flex-start;gap:8px;display:flex}.player-words{flex-wrap:wrap;gap:6px;display:flex}.chip{border:1px solid var(--line);background:var(--card);border-radius:999px;padding:5px 12px;font-size:.92rem;font-weight:600}.chip.on{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}.player-body{grid-template-columns:minmax(0,2fr) minmax(0,1fr);align-items:start;gap:12px;display:grid}@media (width<=480px){.player-body{grid-template-columns:1fr}}.player-video{position:relative}.player-video video{border-radius:var(--radius-sm);aspect-ratio:700/466;background:#000;width:100%;display:block}.player-count{color:#fff;background:#141412b8;border-radius:999px;padding:3px 10px;font-size:.8rem;font-weight:700;position:absolute;top:8px;right:8px}.player-hands img{border-radius:var(--radius-sm);border:1px solid var(--line);background:#fff;width:100%;max-width:150px;margin-bottom:6px;display:block}.player-text{color:var(--muted);font-size:.85rem}.player-controls{flex-wrap:wrap;gap:6px;display:flex}.player-controls .btn{padding:6px 12px;font-size:.85rem}.p-slow[aria-pressed=true]{background:var(--fg);color:var(--bg);border-color:var(--fg)}.credit{color:var(--muted);font-size:.75rem}.credit a{color:var(--accent)}.lessons{gap:8px;max-height:60vh;margin:0;padding:0;list-style:none;display:grid;overflow:auto}.lesson-card{text-align:left;border:1px solid var(--line);background:var(--card);border-radius:var(--radius);gap:4px;width:100%;padding:14px 16px;transition:border-color .15s;display:grid}.lesson-card:hover{border-color:var(--accent)}.lesson-ko{font-size:1.05rem;font-weight:700}.lesson-words{color:var(--muted);font-size:.85rem}.badge{border-radius:999px;justify-self:start;align-items:center;gap:4px;padding:2px 9px;font-size:.75rem;font-weight:700;display:inline-flex}.badge.ok{background:var(--ok-soft);color:var(--ok)}#lesson{gap:12px;display:grid}#lesson-back{justify-self:start}#lesson-ko{font-size:1.35rem;font-weight:800}.lesson-steps{flex-wrap:wrap;gap:6px;display:flex}.step-chip{border:1px solid var(--line);background:var(--card);color:var(--muted);border-radius:999px;padding:5px 12px;font-size:.88rem;font-weight:600}.step-chip.done{background:var(--ok-soft);color:var(--ok);border-color:#0000}.step-chip.on{background:var(--fg);color:var(--bg);border-color:var(--fg)}.coach{border-radius:var(--radius);background:var(--card-2);flex-wrap:wrap;align-items:center;gap:12px;padding:14px 16px;display:flex}.coach[data-phase=try]{background:var(--accent-soft);color:var(--accent-ink)}.coach-icon{background:var(--card);border-radius:12px;justify-content:center;align-items:center;width:40px;height:40px;display:inline-flex}.coach-icon .icon{width:22px;height:22px}.coach>div:nth-child(2){flex:1;min-width:180px}.coach-title{font-size:1.1rem;font-weight:800}.coach-sub{opacity:.85;font-size:.9rem}.coach[data-phase=try] .coach-icon{animation:1.4s ease-in-out infinite pulse}@keyframes pulse{50%{transform:scale(1.08)}}@media (prefers-reduced-motion:reduce){.coach[data-phase=try] .coach-icon{animation:none}}.score{border-radius:var(--radius);border:1px solid var(--line);grid-template-columns:auto minmax(0,1fr);align-items:center;gap:16px;padding:16px;display:grid}.score[data-level=good]{background:var(--ok-soft);border-color:#0000}.score[data-level=close]{background:var(--warn-soft);border-color:#0000}.score[data-level=again]{background:var(--bad-soft);border-color:#0000}.gauge{--c:var(--bad);background:conic-gradient(var(--c) calc(var(--p) * 1%), color-mix(in srgb, var(--c) 18%, transparent) 0);border-radius:50%;place-items:center;width:88px;height:88px;display:grid}.score[data-level=good] .gauge{--c:var(--ok)}.score[data-level=close] .gauge{--c:var(--warn)}.gauge span{background:var(--card);border-radius:50%;place-items:center;width:68px;height:68px;font-size:1.35rem;font-weight:800;display:grid}.gauge small{font-size:.7rem}.score-text{gap:4px;display:grid}.score-title{font-size:1.15rem;font-weight:800}.score-detail{font-size:.92rem}.score-actions{flex-wrap:wrap;grid-column:1/-1;gap:8px;display:flex}.foot{color:var(--muted);text-align:center;padding:18px 16px 28px;font-size:.8rem}