:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f6f5f1;--surface:#fff;--surface-2:#f0eee8;--surface-3:#e6e3db;--border:#e3e0d7;--border-strong:#cdc9be;--ink:#1c2420;--ink-2:#48534e;--ink-3:#626c67;--accent:#2c6a58;--accent-hover:#235747;--accent-ink:#fff;--accent-soft:#e1eee7;--accent-soft-ink:#1d4c3f;--bad:#a3492b;--bad-soft:#f8e9e1;--bad-border:#e7c3b3;--almost:#85621a;--almost-soft:#f6eedb;--almost-border:#e4d09e;--raised:#fff;--focus:#2c6a58;--shadow:0 1px 2px #1c24200d, 0 6px 20px #1c24200d;--scrim:#0e141166;--heat-0:#e9e7e0;--heat-1:#cde2d8;--heat-2:#96c4b0;--heat-3:#569683;--heat-4:#2c6a58;--pitch-model:var(--heat-2);--radius-s:8px;--radius:12px;--radius-l:18px;--font-ui:system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;--font-ko:"Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic";--font-ja:"Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic";--font-zh:"Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei";--font-zh-latin:"Noto Sans";--font-cjk:var(--font-ko);--font-target:var(--font-ko);--t-xl:clamp(2rem, 7vw, 2.5rem);--t-l:clamp(1.5rem, 5vw, 1.875rem);--t-m:1.375rem;--ease:cubic-bezier(.2, .7, .2, 1);--dur:.18s;--page-pad:16px}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#111513;--surface:#181d1b;--surface-2:#1f2522;--surface-3:#29302d;--border:#2a312e;--border-strong:#3a433f;--ink:#e7ebe9;--ink-2:#b6bfba;--ink-3:#939d98;--accent:#79c2a8;--accent-hover:#93d1bb;--accent-ink:#0b1d17;--accent-soft:#1c352d;--accent-soft-ink:#b9e3d3;--bad:#e7a487;--bad-soft:#36231c;--bad-border:#5a3a2e;--almost:#dcbc6d;--almost-soft:#322b19;--almost-border:#574a26;--raised:#313a36;--focus:#79c2a8;--shadow:none;--scrim:#0000008c;--heat-0:#222927;--heat-1:#1f3d33;--heat-2:#2d5f4f;--heat-3:#4a8e76;--heat-4:#79c2a8;--pitch-model:var(--heat-3)}}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#111513;--surface:#181d1b;--surface-2:#1f2522;--surface-3:#29302d;--border:#2a312e;--border-strong:#3a433f;--ink:#e7ebe9;--ink-2:#b6bfba;--ink-3:#939d98;--accent:#79c2a8;--accent-hover:#93d1bb;--accent-ink:#0b1d17;--accent-soft:#1c352d;--accent-soft-ink:#b9e3d3;--bad:#e7a487;--bad-soft:#36231c;--bad-border:#5a3a2e;--almost:#dcbc6d;--almost-soft:#322b19;--almost-border:#574a26;--raised:#313a36;--focus:#79c2a8;--shadow:none;--scrim:#0000008c;--heat-0:#222927;--heat-1:#1f3d33;--heat-2:#2d5f4f;--heat-3:#4a8e76;--heat-4:#79c2a8;--pitch-model:var(--heat-3)}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%;-webkit-tap-highlight-color:transparent}body{background:var(--bg);color:var(--ink);font-family:var(--font-ui), var(--font-cjk), 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var(--focus);outline-offset:2px;border-radius:6px}::selection{background:var(--accent-soft)}ruby{ruby-align:center;ruby-position:over}ruby rt{color:var(--ink-2);letter-spacing:0;font-size:.5em;font-weight:400}ruby:lang(zh) rt{padding-inline:.12em}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;position:absolute!important}.muted{color:var(--ink-3)}.small{font-size:.875rem}.tnum{font-variant-numeric:tabular-nums}.kbd{opacity:.65;font-size:.7rem;font-weight:600;line-height:1;font-family:var(--font-ui), sans-serif;border:1px solid;border-radius:5px;padding:3px 5px;display:none}@media (hover:hover) and (pointer:fine) and (min-width:520px){.kbd{display:inline-block}}@media 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button[aria-pressed=true]{background:var(--raised);color:var(--ink);box-shadow:0 1px 2px #00000014, 0 0 0 1px var(--border);font-weight:650}.switcher button:disabled{cursor:default;color:var(--ink-3)}.switcher .soon{letter-spacing:.04em;text-transform:uppercase;color:var(--ink-3);font-size:.62rem;font-weight:600;font-family:var(--font-ui), sans-serif}@media (min-width:760px){.switcher{margin-left:0}.nav-inline{margin-left:auto}}.btn{border-radius:var(--radius);white-space:nowrap;min-height:44px;transition:background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease), transform 80ms var(--ease);background:0 0;border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:0 18px;font-weight:600;text-decoration:none;display:inline-flex}.btn 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svg{width:22px;height:22px}.audio-btn--lg{width:64px;height:64px}.audio-btn--lg svg{width:28px;height:28px}.audio-btn--sm{width:36px;height:36px}.audio-btn--sm svg{width:18px;height:18px}.audio-btn[data-playing=true]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.audio-btn[data-playing=true] .wave{animation:.9s ease-in-out infinite wave}@keyframes wave{50%{opacity:.35}}.voice-label{color:var(--ink-3);font-size:.75rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-l);box-shadow:var(--shadow);padding:20px}@media (min-width:760px){.card{padding:28px}}.chips{flex-wrap:wrap;gap:6px;display:flex}.chip{border:1px solid var(--border-strong);background:var(--surface);min-width:44px;min-height:40px;color:var(--ink-2);transition:background var(--dur) var(--ease), border-color var(--dur) var(--ease);border-radius:999px;padding:0 12px;font-weight:550}.chip:hover{border-color:var(--ink-3)}.chip[aria-checked=true]{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-soft-ink);font-weight:650}.pill{background:var(--surface-2);color:var(--ink-2);white-space:nowrap;border-radius:999px;align-items:center;gap:4px;padding:2px 10px;font-size:.78rem;font-weight:600;display:inline-flex}.pill svg{width:14px;height:14px}.pill--accent{background:var(--accent-soft);color:var(--accent-soft-ink)}.pill--outline{box-shadow:inset 0 0 0 1px var(--accent);color:var(--accent);background:0 0}.pill--muted{box-shadow:inset 0 0 0 1px var(--border-strong);color:var(--ink-3);background:0 0}.segmented{background:var(--surface-2);border:1px solid var(--border);border-radius:12px;flex-wrap:wrap;gap:2px;padding:3px;display:inline-flex}.segmented button{min-height:34px;color:var(--ink-2);background:0 0;border:0;border-radius:9px;padding:0 12px;font-size:.875rem;font-weight:550}.segmented button[aria-checked=true]{background:var(--raised);color:var(--ink);box-shadow:0 1px 2px #00000014, 0 0 0 1px var(--border);font-weight:650}.toggle{background:var(--surface-3);width:48px;height:28px;transition:background var(--dur) var(--ease);border:0;border-radius:999px;flex:none;align-items:center;padding:0;display:inline-flex;position:relative}.toggle:after{content:"";width:22px;height:22px;transition:transform var(--dur) var(--ease);background:#fff;border-radius:999px;position:absolute;left:3px;box-shadow:0 1px 3px #00000040}.toggle[aria-checked=true]{background:var(--accent)}.toggle[aria-checked=true]:after{transform:translate(20px)}.toggle:disabled,.chip:disabled,.radio-card:disabled{opacity:.5;cursor:default}.target{overflow-wrap:break-word;font-weight:500;line-height:1.4}.target--ruby{line-height:2}.t-xl{font-size:var(--t-xl);font-weight:550;line-height:1.25}.t-xl.target--ruby{line-height:1.7}.t-l{font-size:var(--t-l)}.t-m{font-size:var(--t-m)}mark.hl{background:var(--accent-soft);color:var(--accent-soft-ink);box-shadow:inset 0 -2px 0 var(--accent);border-radius:4px;padding:0 .06em}.reading{color:var(--ink-3);font-weight:400}.gloss{color:var(--ink-2)}.md{color:var(--ink);line-height:1.6}.md>*{margin:0}.md>*+*{margin-top:.75em}.md ul,.md ol{padding-left:1.3em}.md li+li{margin-top:.3em}.md strong{color:var(--accent-soft-ink);background:var(--accent-soft);border-radius:3px;padding:0 .12em;font-weight:700}.md code{background:var(--surface-2);border-radius:4px;padding:.05em .3em;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em}.md table{border-collapse:collapse;width:100%;font-size:.95em}.md th,.md td{border-bottom:1px solid var(--border);text-align:left;padding:6px 8px}dialog.sheet{background:var(--surface);color:var(--ink);border:0;max-width:100vw;max-height:100dvh;padding:0;overflow:hidden}dialog.sheet::backdrop{background:var(--scrim)}dialog.sheet[open]{animation:sheet-up .24s var(--ease);flex-direction:column;display:flex}.sheet__head{border-bottom:1px solid var(--border);align-items:center;gap:8px;padding:12px 12px 8px 20px;display:flex}.sheet__head h2{flex:1;font-size:1.05rem}.sheet__body{padding:20px 20px calc(24px + env(safe-area-inset-bottom));overscroll-behavior:contain;overflow-y:auto}@media (max-width:759px){dialog.sheet{border-radius:20px 20px 0 0;width:100vw;max-height:88dvh;margin:auto 0 0}}@media (min-width:760px){dialog.sheet{border-left:1px solid var(--border);width:min(480px,100vw);height:100dvh;margin:0 0 0 auto}dialog.sheet[open]{animation-name:sheet-left}dialog.sheet--center{border:1px solid var(--border);border-radius:18px;height:auto;max-height:85dvh;margin:auto}dialog.sheet--center[open]{animation-name:fade-in}}@keyframes sheet-up{0%{opacity:0;transform:translateY(24px)}}@keyframes sheet-left{0%{opacity:0;transform:translate(24px)}}@keyframes fade-in{0%{opacity:0}}.state{text-align:center;color:var(--ink-2);justify-items:center;gap:12px;padding:48px 16px;display:grid}.state h2{color:var(--ink);font-size:1.15rem}.state p{max-width:44ch}.spinner{border:3px solid var(--surface-3);border-top-color:var(--accent);border-radius:999px;width:28px;height:28px;animation:.9s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.loading-fade{opacity:.6;transition:opacity var(--dur) var(--ease)}.callout{border-radius:var(--radius);background:var(--surface-2);color:var(--ink-2);padding:12px 14px;font-size:.95rem}.callout--accent{background:var(--accent-soft);color:var(--accent-soft-ink)}.mock-badge{right:10px;bottom:calc(66px + env(safe-area-inset-bottom));z-index:40;letter-spacing:.05em;text-transform:uppercase;background:var(--almost-soft);color:var(--almost);border:1px solid var(--almost-border);pointer-events:none;border-radius:999px;padding:3px 8px;font-size:.7rem;font-weight:700;position:fixed}@media (min-width:760px){.mock-badge{bottom:12px}}.field{gap:6px;display:grid}.field label,.field .label{font-weight:600}.textarea{border-radius:var(--radius);border:1px solid var(--border-strong);background:var(--surface);resize:vertical;width:100%;min-height:96px;padding:10px 12px}.radio-cards{gap:8px;display:grid}.radio-card{text-align:left;border-radius:var(--radius);border:1.5px solid var(--border-strong);background:var(--surface);width:100%;transition:border-color var(--dur) var(--ease), background var(--dur) var(--ease);align-items:flex-start;gap:12px;padding:14px 16px;display:flex}.radio-card[aria-checked=true]{border-color:var(--accent);background:var(--accent-soft)}.radio-card__dot{border:2px solid var(--border-strong);border-radius:999px;flex:none;place-items:center;width:20px;height:20px;margin-top:2px;display:grid}.radio-card[aria-checked=true] .radio-card__dot{border-color:var(--accent)}.radio-card[aria-checked=true] .radio-card__dot:after{content:"";background:var(--accent);border-radius:999px;width:10px;height:10px}.radio-card__title{font-weight:650}.radio-card__sub{color:var(--ink-2);font-size:.9rem}.pitch{border-top:1px solid var(--border);text-align:left;gap:8px;width:100%;margin:0;padding-top:12px;display:grid}.pitch__head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:2px 12px;display:flex}.pitch__note,.pitch__empty{color:var(--ink-3);font-size:.8125rem}.pitch__plot{grid-template-columns:auto minmax(0,1fr);gap:8px;display:grid}.pitch__ticks{width:2.4ch;color:var(--ink-3);font-variant-numeric:tabular-nums;font-size:.6875rem;position:relative}.pitch__ticks span{line-height:1;position:absolute;right:0;transform:translateY(-50%)}.pitch__svg{width:100%;height:112px;display:block;overflow:visible}.pitch__grid,.pitch__zero{stroke-width:1px;vector-effect:non-scaling-stroke}.pitch__grid{stroke:color-mix(in srgb, var(--border) 70%, transparent)}.pitch__zero{stroke:var(--border-strong)}.pitch__line{fill:none;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke;transition:opacity var(--dur) var(--ease)}.pitch__line--model{stroke:var(--pitch-model);stroke-width:6px}.pitch__line--you{stroke:var(--ink);stroke-width:2px}.pitch[data-playing=model] .pitch__line--you,.pitch[data-playing=you] .pitch__line--model{opacity:.3}.pitch__keys{flex-wrap:wrap;gap:6px;display:flex}.pitch__key{border:1px solid var(--border-strong);background:var(--surface);min-height:40px;color:var(--ink);transition:background var(--dur) var(--ease), border-color var(--dur) var(--ease);border-radius:999px;align-items:center;gap:6px;padding:0 12px 0 10px;font-size:.875rem;font-weight:550;display:inline-flex}.pitch__key:hover{background:var(--surface-2)}.pitch__key svg{width:14px;height:14px;color:var(--accent)}.pitch__key[data-playing=true]{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-soft-ink)}.pitch__swatch{border-radius:999px;width:16px;display:inline-block}.pitch__swatch--model{border-top:6px solid var(--pitch-model)}.pitch__swatch--you{border-top:2px solid var(--ink)}.pitch-practice{justify-items:center;gap:10px;width:100%;margin-top:4px;display:grid}.pitch-practice .btn[data-state=recording]{border-color:var(--bad);color:var(--bad)}@media 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var(--font-ui);--glyph-size:clamp(4.2rem, 20vw, 5.6rem);font-size:min(var(--glyph-size), calc(var(--glyph-room,100vw) / var(--chars,1)));cursor:pointer;background:0 0;border:0;padding:0 8px;font-weight:500;line-height:1.15}.poc-glyph__text--2{--glyph-size:clamp(3.4rem, 15vw, 4.4rem)}.poc-glyph__text--3{--glyph-size:clamp(2.8rem, 12vw, 3.6rem)}.poc-glyph__text--5{--glyph-size:clamp(2rem, 8.5vw, 2.8rem)}.poc-glyph__text--7{--glyph-size:clamp(1.7rem, 7vw, 2.4rem)}.poc-glyph--long:not(:has(.poc-pic))>.poc-glyph__badge{min-height:38px}.poc-glyph--long:not(:has(.poc-pic)):has(rt)>.poc-glyph__badge{min-height:46px}.poc-glyph__text.is-tappable{color:var(--hint);text-underline-offset:10px;-webkit-text-decoration:underline dotted;text-decoration:underline dotted;text-decoration-thickness:3px}.poc-glyph__gloss{min-height:1.3em;color:var(--ink-2);font-size:1rem}.poc-glyph 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var(--ease), transform 80ms var(--ease);border-bottom-width:4px;border-radius:16px;place-items:center;padding:12px 16px;display:grid;position:relative}.poc-opt:active:not(:disabled){border-bottom-width:2px;transform:translateY(2px)}.poc-opt--tile{flex:0 140px;min-width:0;min-height:150px;padding:12px 8px;container-type:inline-size}.poc-opt__n{color:var(--ink-3);opacity:.6;font-size:.75rem;font-weight:700;position:absolute;top:6px;left:8px}.poc-opt__roman{white-space:nowrap;font-size:1.35rem;font-weight:600}.poc-opt__roman--phrase{white-space:normal;overflow-wrap:normal;text-align:center;text-wrap:balance}.poc-tile__glyph{font-family:var(--font-target), var(--font-ui);font-size:3.4rem;line-height:1.1}.poc-tile__roman{min-height:1.2em;color:var(--ink-3);font-size:.95rem;font-weight:600}.poc-opt[data-state=hint]{border-color:var(--hint);box-shadow:0 0 0 3px color-mix(in srgb, var(--hint) 18%, 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var(--ease)}.poc-words{gap:8px;margin:0;padding:0;list-style:none;display:grid}.poc-words__row{background:var(--surface);width:100%;color:var(--ink);text-align:left;cursor:pointer;border:0;border-radius:14px;grid-template-columns:auto 1fr auto;align-items:baseline;gap:12px;padding:12px 16px;display:grid}.poc-words__ko{font-family:var(--font-target), var(--font-ui);font-size:1.7rem}.poc-words__roman{color:var(--ink-3)}.poc-words__gloss{color:var(--ink-2)}.poc-done{align-self:center;min-width:200px}.poc-sum{flex-wrap:wrap;justify-content:center;gap:14px;margin-top:10px;display:flex}.poc-sum__item{font-family:var(--font-target), var(--font-ui);justify-items:center;gap:4px;font-size:1.8rem;display:grid}.poc-sum__dots{gap:3px;display:flex}.poc-sum__dots i{background:var(--surface-3);border-radius:50%;width:8px;height:8px}.poc-sum__dots i[data-on]{background:var(--accent)}.poc-recap-card{gap:14px}.poc-recap{gap:8px;margin:0;padding:0;list-style:none;display:grid}.poc-recap__row{border:2px solid color-mix(in srgb, var(--accent) 35%, transparent);background:var(--accent-soft);width:100%;color:var(--accent-soft-ink);text-align:left;cursor:pointer;border-radius:14px;grid-template-columns:96px 1fr;align-items:center;gap:12px;padding:8px 14px;display:grid;position:relative}.poc-recap--wide .poc-recap__row:not(.poc-recap__row--phrase){grid-template-columns:124px 1fr}.poc-recap__glyph{justify-items:center;line-height:1.1;display:grid}.poc-recap__glyph small{font-size:.8rem;font-weight:600}.poc-recap__glyph span{font-family:var(--font-target), var(--font-ui);font-size:1.8rem}.poc-recap__gloss{color:var(--ink-2)}.poc-recap__dot{background:var(--almost);border-radius:50%;width:7px;height:7px;position:absolute;top:50%;right:12px}.poc-grid{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.poc-grid__cell{border:2px solid color-mix(in srgb, var(--accent) 35%, transparent);background:var(--accent-soft);color:var(--accent-soft-ink);font-family:var(--font-target), var(--font-ui);cursor:pointer;border-radius:14px;justify-items:center;padding:8px 4px;font-size:2rem;display:grid;position:relative}.poc-grid__cell small{font-family:var(--font-ui);font-size:.8rem;font-weight:600}.poc-grid__cell .poc-recap__dot{top:8px;right:8px}.poc-end-actions{justify-items:center;gap:6px;margin-top:auto;display:grid}@media (min-width:700px){.poc-recap-card .poc-recap{grid-template-columns:1fr 1fr}}.poc-recap__row{padding:6px 12px}.poc-match__cell--sound{color:var(--accent);place-items:center;display:grid}.poc-match__cell--sound svg{width:26px;height:26px}.poc-match__cell--sound[data-state=right]{color:var(--accent-soft-ink)}.poc-restart{white-space:nowrap;padding:4px 0}.hh-title{font-size:1.15rem;font-weight:700}.hh{gap:22px}.hh-actions{gap:10px;display:grid}.hh-next,.hh-review{text-align:center;text-decoration:none}.hh-next{white-space:normal;flex-wrap:wrap;gap:0 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var(--font-ui);font-size:1.7rem;line-height:1.2}.hh-cell__roman{color:var(--ink-3);font-size:.75rem;font-weight:600}.hh-bar{background:var(--surface-3);border-radius:3px;width:70%;height:5px;overflow:hidden}.hh-bar>span{background:var(--accent);height:100%;display:block}.hh-bar>span[data-due]{background:var(--almost)}.hh-lessons ol{gap:6px;margin:0;padding:0;list-style:none;display:grid}.hh-lessons a,.hh-locked{background:var(--surface);color:var(--ink);border-radius:12px;align-items:center;gap:10px;padding:10px 14px;text-decoration:none;display:flex}.hh-locked{color:var(--ink-3)}.hh-lessons svg{width:18px;height:18px}.hh-dot{background:var(--hint);border-radius:50%;width:10px;height:10px;margin:0 4px}.hh-dot--added{box-shadow:inset 0 0 0 2px var(--hint);background:0 0}.poc-pic{font-size:2.6rem;line-height:1.2}.poc-pic--big{align-self:center;font-size:4rem}.poc-opts--stack{grid-template-columns:1fr}.poc-opt__meaning{font-size:1.15rem;font-weight:600}.poc-tile__glyph--word{overflow-wrap:anywhere;max-width:100%;font-size:2.2rem}@supports (font-size:1cqi){.poc-tile__glyph--word{font-size:clamp(.85rem, calc(94cqi / var(--chars,2)), 2.2rem);overflow-wrap:normal;white-space:nowrap}}.poc-match__cell--meaning{font-size:1rem}.poc-match__cell--tones{padding:6px 4px;font-weight:500}.poc-match__cell--tones .tone-opt__name{font-size:.85rem}.poc-typed{border:2px solid var(--border-strong);background:var(--surface);border-bottom-width:4px;border-radius:16px;align-self:center;justify-items:center;min-width:min(80vw,320px);padding:14px 18px;display:grid;position:relative}.poc-typed__value{font-family:var(--font-target), var(--font-ui);min-height:1.3em;font-size:2.6rem}.poc-typed__hint{color:var(--ink-3);opacity:.6;font-family:var(--font-target), var(--font-ui);font-size:1.3rem}.poc-typed[data-state=right]{border-color:var(--accent);background:var(--accent-soft)}.poc-typed[data-state=wrong]{border-color:var(--bad-border);background:var(--bad-soft);animation:shake .3s var(--ease)}.poc-typepad{gap:12px;margin-top:auto;display:grid}.poc-typed__go{justify-self:end;min-width:120px}.hh-step{gap:1px;display:grid}.hh-step__kind{color:var(--ink-3);letter-spacing:.05em;text-transform:uppercase;font-size:.72rem;font-weight:700}.hh-step__sub{color:var(--ink-3);font-size:.85rem}.hh-lessons li[data-kind=words] a,.hh-lessons li[data-kind=words] .hh-locked,.hh-lessons li[data-kind=grammar] a,.hh-lessons li[data-kind=grammar] .hh-locked{margin-left:18px}.poc-phrase{font-family:var(--font-target), var(--font-ui);flex-wrap:wrap;justify-content:center;gap:.35em;font-size:1.6rem;display:inline-flex}.poc-phrase[data-spacing=hide]{gap:0}.poc-phrase--big{font-size:clamp(2rem,8vw,2.6rem)}.poc-phrase__w{color:inherit;font:inherit;cursor:pointer;background:0 0;border:0;padding:0;position:relative}.poc-phrase__tok{white-space:nowrap}.poc-bubble .poc-phrase__tok[data-breaks]{white-space:normal}.poc-phrase__tok[data-tight]{margin-right:-.35em}.poc-phrase[data-spacing=hide] .poc-phrase__tok[data-tight]{margin-right:0}.poc-glyph .poc-phrase--big{font-size:min(clamp(2rem, 8vw, 2.6rem), calc(var(--glyph-room,100vw) / var(--longest,1)));position:relative}.poc-glyph .poc-phrase--big .poc-phrase__w{position:static}.poc-phrase .tap-tok__bubble{white-space:normal;text-align:center;width:max-content;max-width:calc(100vw - 16px)}.poc-glyph .poc-phrase--big .tap-tok__bubble{z-index:2;top:calc(100% + 2px);bottom:auto}.poc-phrase__w.is-tappable{color:var(--hint);text-underline-offset:6px;-webkit-text-decoration:underline dotted;text-decoration:underline dotted;text-decoration-thickness:2px}.poc-gap{border-bottom:3px solid var(--accent);text-align:center;min-width:2.6em}.poc-build{border-bottom:2px solid var(--border-strong);flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;min-height:72px;padding:10px;display:flex}.poc-build[data-state=right] .poc-wtile{border-color:var(--accent);background:var(--accent-soft)}.poc-build__hint{color:var(--ink-3);font-family:var(--font-ui), sans-serif;font-size:.9rem;font-weight:400}.poc-wtiles{flex-wrap:wrap;justify-content:center;gap:10px;margin-top:auto;display:flex}.poc-wtile{border:2px solid var(--border-strong);background:var(--surface);min-height:52px;color:var(--ink);font-family:var(--font-target), var(--font-ui);cursor:pointer;border-bottom-width:4px;border-radius:14px;padding:6px 16px;font-size:1.5rem}.poc-wtile:disabled{opacity:.25}.poc-bubbles{gap:10px;display:grid}.poc-bubble{background:var(--surface);max-width:85%;color:var(--ink);text-align:left;cursor:pointer;animation:card-fade .22s var(--ease);border:0;border-radius:18px;gap:2px;padding:10px 14px;display:grid;position:relative}.poc-bubble--server{border-bottom-left-radius:6px;justify-self:start}.poc-bubble--you{background:var(--accent-soft);border-bottom-right-radius:6px;justify-self:end}.poc-bubble__who{color:var(--ink-3);font-size:.75rem;font-weight:700}.poc-bubble--blank{border:2px dashed var(--accent);cursor:default;background:0 0;min-width:96px}.poc-bubble--blank .poc-bubble__ko{color:var(--ink-3)}.poc-bubble__ko{font-family:var(--font-target), var(--font-ui);font-size:1.5rem}.poc-bubble__en{color:var(--ink-2);font-size:.95rem}.poc-line__clause{display:inline-block}.poc-line__end{white-space:nowrap}.poc-line__hang{margin-inline-end:-.5em}.poc-bubble .poc-phrase{justify-content:flex-start}.poc-bubble__roman{color:var(--ink-3);font-size:.9rem}.poc-bubble .poc-phrase--hang{position:relative}.poc-bubble .poc-phrase--hang .poc-phrase__w{position:static}.poc-bubble .poc-phrase--hang .tap-tok__bubble{z-index:2}.poc-bubble__heard{color:var(--ink-2);align-items:center;gap:6px;display:inline-flex}.poc-bubble__heard svg{width:1.1em;height:1.1em}.poc-bubble__dots{font-family:var(--font-ui);letter-spacing:.1em}.poc-bubble .poc-speaker{position:absolute;top:8px;right:-52px}.poc-bubbles--compact{gap:4px}.poc-bubbles--compact .poc-bubble{border-radius:14px;flex-wrap:wrap;align-items:baseline;column-gap:8px;padding:4px 12px;line-height:1.25;animation:none;display:flex}.poc-bubbles--compact .poc-bubble__ko{font-size:1.15rem;line-height:1.25}.poc-bubbles--compact button.poc-bubble{display:block}.poc-bubbles--compact button.poc-bubble .poc-bubble__who{margin-right:8px}.poc-bubbles--compact .poc-bubble__en,.poc-bubbles--compact .poc-bubble__roman{flex-basis:100%}.poc-bubbles--compact button.poc-bubble .poc-bubble__en,.poc-bubbles--compact button.poc-bubble .poc-bubble__roman{display:block}.poc-relisten__answer{background:var(--accent-soft);color:var(--accent-soft-ink);white-space:nowrap;animation:pop .24s var(--ease);border-radius:999px;align-items:center;gap:4px;padding:1px 10px;font-size:1rem;display:inline-flex}.poc-relisten__answer svg{width:1em;height:1em}.poc-opts--gist .poc-opt{min-height:52px;padding:8px 16px}.poc-gist{gap:14px}.poc-gist .poc-opts--stack{gap:8px;scroll-margin-bottom:24px}.poc-intent{color:var(--ink);text-align:center;justify-self:stretch;margin-top:6px;font-size:1.2rem;font-weight:600}.poc-opt__ko{font-family:var(--font-target), var(--font-ui);font-size:1.5rem}.poc-prompt-en{text-align:center;justify-items:center;gap:6px;margin:8px 0;font-size:1.5rem;font-weight:600;display:grid}.poc-listen--build{flex-direction:column;align-items:center;gap:2px}.poc-build__peek{color:var(--ink);font-family:var(--font-ui);cursor:pointer;background:0 0;border:0;margin:4px 0 0;padding:0 6px}.poc-build__peek.is-tappable{text-underline-offset:6px;-webkit-text-decoration:underline dotted;text-decoration:underline dotted;text-decoration-thickness:2px}.poc-listen--build .poc-glyph__badge{max-width:none}.poc-phrase--line{white-space:nowrap;flex-wrap:nowrap;font-size:clamp(1.6rem,7vw,2.2rem)}.poc-recap__row--phrase{flex-wrap:wrap;align-items:center;gap:2px 12px;display:flex}.poc-recap__row--phrase .poc-recap__glyph{flex:0 auto;min-width:0}.poc-recap__row--phrase .poc-recap__gloss{flex:9em;min-width:0}.poc-can{cursor:default;grid-template-columns:1fr}.poc-can:not([data-ok]){background:var(--surface)}.poc-goal-done{gap:10px}.poc-goal-done__kicker{color:var(--accent);letter-spacing:.04em;text-transform:uppercase;margin:8px 0 0;font-size:.85rem;font-weight:700}.poc-goal-done__can{gap:10px;margin:0;padding:0;list-style:none;display:grid}.poc-goal-done__can li{color:var(--ink);align-items:flex-start;gap:10px;font-size:1.02rem;line-height:1.4;display:flex}.poc-goal-done__can svg{width:18px;height:18px;color:var(--accent);flex:none;margin-top:3px}.poc-goal-done__title{align-items:center;gap:8px;margin:0;font-size:1.6rem;line-height:1.2;display:flex}.poc-goal-done__tick{width:26px;height:26px;color:var(--accent);flex:none}.poc-can__line{color:var(--ink-2);font-family:var(--font-target), var(--font-ui);font-size:1.05rem}.poc-card[data-checkpoint] .poc-bubbles:not(.poc-bubbles--compact) .poc-bubble{max-width:94%}.poc-card[data-checkpoint] .poc-bubbles:not(.poc-bubbles--compact) .poc-bubble__ko{font-size:1.3rem}.poc-card[data-checkpoint] .poc-opts--stack{gap:8px}.poc-map{aspect-ratio:3/2;background:var(--surface-2);border-radius:16px;width:100%;max-width:340px;margin:4px auto 0;position:relative}.poc-map__plan{width:100%;height:100%;position:absolute;inset:0}.poc-map__road{fill:var(--ink-3);opacity:.3}.poc-map__you{fill:var(--accent)}.poc-map__youlabel{color:var(--ink-2);font-size:.8rem;font-weight:700;position:absolute;bottom:4%;left:58%}.poc-map__spot{justify-items:center;display:grid;position:absolute;transform:translate(-50%,-50%)}.poc-card[data-checkpoint] .poc-map__spot .poc-opt{border:3px solid var(--accent);background:var(--surface);border-radius:50%;width:44px;min-width:44px;height:44px;min-height:44px;padding:0}.poc-map__spot .poc-opt .poc-opt__mark{margin:0;position:static}.poc-map--waiting .poc-map__spot,.poc-card[data-checkpoint] .poc-opts--waiting{visibility:hidden}.poc-card[data-checkpoint] .poc-opt{min-height:52px;padding:6px 14px}.poc-card[data-checkpoint] .poc-opt__ko{font-size:1.3rem;line-height:1.35}.poc-day{color:var(--ink-2);flex-wrap:wrap;align-items:center;gap:8px;margin:0;font-size:.95rem;font-weight:600;display:flex}.poc-lead{white-space:pre-line;line-height:1.35}.poc-lead--compact{text-overflow:ellipsis;white-space:nowrap;font-size:.8rem;display:block;overflow:hidden}.poc-recap__row--phrase .poc-recap__glyph{justify-items:start}.poc-recap__row--phrase .poc-recap__glyph span{font-size:1.4rem}.poc-frame--tail{grid-template-rows:1fr 1fr;height:200px}.poc-frame--below.poc-frame--tail{grid-template-rows:1fr 1fr 1fr;height:240px}.poc-frame--tail .poc-frame__slot:nth-child(3){border-left:0;border-top:1px dashed var(--border-strong);grid-column:1/-1}.poc-frame--wrap{grid-template-rows:1fr 1fr;height:180px}.poc-frame--wrap .poc-frame__slot:first-child{grid-area:1/1}.poc-frame--wrap .poc-frame__slot:nth-child(2){border-left:0;border-top:1px dashed var(--border-strong);grid-area:2/1}.poc-frame--wrap .poc-frame__slot:nth-child(3){border-left:1px dashed var(--border-strong);border-top:0;grid-area:1/2/3}.poc-frame--wrap.poc-frame--tail{grid-template-rows:1fr 1fr 1fr;height:240px}.poc-frame--wrap .poc-frame__slot:nth-child(4){border-left:0;border-top:1px dashed var(--border-strong);grid-area:3/1/auto/-1}.poc-frame--tail2{grid-template-columns:1fr 1fr}.poc-frame--below.poc-frame--tail2{width:180px}.poc-frame--below.poc-frame--tail2 .poc-frame__slot:nth-child(-n+2){grid-column:1/-1}.poc-frame--tail2 .poc-frame__slot:nth-last-child(2){border-left:0;border-top:1px dashed var(--border-strong);grid-column:1}.poc-frame--tail2 .poc-frame__slot:last-child{border-left:1px dashed var(--border-strong);border-top:1px dashed var(--border-strong);grid-column:2}.ko-run{font-family:var(--font-target), var(--font-ui)}.poc-exs{gap:6px;margin:0;padding:0;list-style:none;display:grid}.poc-ex{background:var(--surface);width:100%;color:var(--ink);text-align:left;cursor:pointer;border:0;border-radius:14px;grid-template-columns:minmax(7.5em,auto) 1fr;align-items:baseline;gap:14px;padding:8px 14px;display:grid}.poc-ex__ko{font-family:var(--font-target), var(--font-ui);font-size:1.6rem}.poc-ex__end{color:var(--hint);font-weight:600}.poc-ex__en{color:var(--ink-2)}.poc-exs--stack .poc-ex{grid-template-columns:1fr;gap:0;padding:6px 14px}.poc-exs--stack .poc-ex__ko{font-size:1.4rem}.poc-exs--stack .poc-ex__en{font-size:.95rem}.poc-exs--grid{grid-template-columns:1fr 1fr}.poc-exs--grid .poc-ex{grid-template-columns:auto 1fr;gap:12px}.poc-exs--pairs{grid-template-columns:1fr 1fr}.poc-rule{border:2px solid color-mix(in srgb, var(--accent) 35%, transparent);background:var(--accent-soft);color:var(--accent-soft-ink);animation:card-fade .2s var(--ease);border-radius:16px;gap:6px;padding:14px 16px;display:grid}.poc-rule__line{font-size:1.15rem;font-weight:600}.poc-rule__sound{color:var(--ink-2)}.poc-rule .poc-info{text-align:left;margin-top:4px}.poc-card>.poc-gotit{margin-top:auto}.poc-notice--solved{gap:12px}.poc-notice--solved .poc-exs{gap:4px}.poc-notice--solved .poc-exs--stack .poc-ex{padding:3px 12px}.poc-notice--solved .poc-exs--stack .poc-ex__ko{font-size:1.2rem}.poc-notice--solved .poc-exs--stack .poc-ex__en{font-size:.85rem}.poc-notice--solved .poc-rule{gap:4px;padding:10px 14px;line-height:1.35}.poc-notice--solved .poc-rule__sound{font-size:.92rem}.poc-notice--solved .poc-rule__line{font-size:1.08rem}.poc-notice--solved>.poc-instr{font-size:1.05rem}@media (min-width:900px){.poc-card>.poc-gotit{margin-top:16px}}.poc-ending .poc-phrase--line{font-size:clamp(2.2rem,10vw,3rem)}.poc-ending .poc-phrase--long{font-size:clamp(1.6rem,7vw,2.2rem)}.poc-slot{border-bottom:3px solid var(--hint);text-align:left;min-width:2.2em;display:inline-block}.poc-slot[data-filled]{color:var(--accent-soft-ink);border-bottom-color:#0000}.poc-place__row{flex-wrap:wrap;justify-content:center;align-items:flex-end;row-gap:10px;font-size:clamp(1.6rem,7.5vw,2.2rem);line-height:1.2;display:flex}.poc-place__none{white-space:nowrap;font-size:1.25rem}.poc-place__chip{white-space:nowrap}.poc-place__space{width:.35em;display:inline-block}.poc-place__gap{border:0;border-bottom:3px solid var(--hint);background:color-mix(in srgb, var(--hint) 18%, transparent);min-width:28px;min-height:44px;color:var(--ink-3);font:inherit;cursor:pointer;border-radius:6px 6px 0 0;justify-content:center;align-items:center;margin:0 .1em;padding:0;font-size:.6em;display:inline-flex}.poc-place__gap[data-state=right]{color:var(--accent-soft-ink);background:0 0;border-bottom-color:#0000;font-size:1em}.poc-place__gap[data-state=wrong]{border-bottom-color:var(--bad);color:var(--bad);cursor:default}.poc-place__gap[data-state=dim]{opacity:.35;cursor:default}.poc-reason{color:var(--ink-2);text-align:center;font-size:1.05rem}.poc-hint{color:var(--ink-2);font-family:var(--font-target), var(--font-ui);margin-top:-12px;font-size:1.05rem}.poc-opt__sub{color:var(--ink-3);font-size:.9rem;font-weight:600}.poc-wgroup{display:inline-flex}.poc-build .poc-wtile--suffix{border-left-width:0;border-top-left-radius:0;border-bottom-left-radius:0}.poc-build .poc-wtile:has(+.poc-wtile--suffix){border-top-right-radius:0;border-bottom-right-radius:0}.poc-build .poc-wgroup:has(>.poc-wtile:nth-child(3)) .poc-wtile{padding-inline:9px}.hh-grammar ul{gap:6px;margin:0;padding:0;list-style:none;display:grid}.hh-rule{background:var(--surface);width:100%;color:var(--ink);text-align:left;cursor:pointer;border:0;border-radius:12px;justify-content:space-between;align-items:center;gap:10px;padding:10px 14px;font-size:1rem;display:flex}.hh-rule svg{width:18px;height:18px;color:var(--ink-3)}.hh-rule__card{gap:10px;padding:10px 0 4px;display:grid}.hh-after .hh-locked{border:2px dashed var(--border);background:0 0}.hh-after svg{color:var(--ink-3);flex:none}.hh-fold__head span svg,.hh-region .hh-rule span svg{width:16px;height:16px;color:var(--accent);vertical-align:-2px;margin-left:4px}.hh-fold ol,.hh-region ol{margin-top:6px}.hh-goal{gap:6px;display:grid}.hh-can{gap:4px;padding:4px 4px 6px;display:grid}.hh-can .hh-note{text-align:left;margin:0}.hh-can ul{color:var(--ink-2);gap:4px;margin:0;padding-left:1.2em;display:grid}.hh-region__more{white-space:nowrap;margin-left:6px}.hh-region__coming{border:2px dashed var(--border);color:var(--ink-3);cursor:default;background:0 0}.hh-goal h2{margin-bottom:2px}.hh-goal__bar{width:100%;margin-bottom:6px}.hh-goals ul{gap:6px;margin:0;padding:0;list-style:none;display:grid}.hh-goal-row{justify-content:space-between}.hh-goal-row svg{color:var(--ink-3);flex:none}.gp{gap:18px}.gp-head{text-align:center;gap:4px;padding-top:8px;display:grid}.gp-head h2{margin:0;font-size:1.35rem;font-weight:700}.gp-head p{color:var(--ink-3);margin:0;font-size:1.05rem}.gp-cards{gap:10px;margin:0;padding:0;list-style:none;display:grid}.gp-card{border:2px solid var(--border);background:var(--surface);width:100%;color:var(--ink);font:inherit;text-align:left;border-bottom-width:4px;border-radius:16px;gap:3px;padding:14px 16px;display:grid}button.gp-card{cursor:pointer}button.gp-card:hover:not(:disabled),.gp-card[data-current]{border-color:var(--accent)}.gp-card[data-coming]{color:var(--ink-3);background:0 0;border-style:dashed;border-bottom-width:2px}.gp-card__head{justify-content:space-between;align-items:baseline;gap:10px;display:flex}.gp-card__title{font-size:1.1rem;font-weight:700}.gp-card[data-coming] .gp-card__title{color:var(--ink)}.gp-card__line{font-size:.95rem}.gp-card__meta{color:var(--ink-3);font-size:.85rem}.gp-badge{color:var(--ink-3);letter-spacing:.05em;text-transform:uppercase;flex:none;font-size:.72rem;font-weight:700}.gp-badge[data-kind=recommended],.gp-badge[data-kind=current]{color:var(--accent)}.gp-ok{text-align:center;text-decoration:none}.poc-phrase--line.poc-phrase--wrap{white-space:normal;flex-wrap:wrap;justify-content:center;row-gap:4px}.poc ruby{ruby-position:over;ruby-align:center}.poc ruby>rt{color:var(--ink-2);font-family:var(--font-ui), sans-serif;letter-spacing:0;font-size:min(max(.42em,.66rem),.9rem);font-weight:400}.tone-contour{color:var(--ink);gap:4px;display:inline-flex}.tone-contour__syl{width:34px;height:29px;overflow:visible}.tone-contour--big .tone-contour__syl{width:48px;height:41px}.tone-contour--many{gap:2px}.tone-contour--many .tone-contour__syl{width:26px;height:22px}.tone-contour__syl line,.tone-contour__syl circle{stroke:currentColor;stroke-width:3.4px;stroke-linecap:round;fill:currentColor}.tone-contour__syl .tone-contour__floor{stroke:var(--border-strong);stroke-width:1.2px;stroke-dasharray:2 3}.tone-opt{justify-items:center;gap:4px;display:grid}.tone-opt__name{color:var(--ink-2);font-size:.95rem}.tone-glyph,.tone-pinyin,.tone-word{font-family:var(--font-ui), sans-serif}.poc-glyph__text.tone-glyph{--glyph-size:clamp(3.4rem, 16vw, 4.6rem);cursor:default}button.poc-glyph__text.tone-glyph{cursor:pointer}.poc-glyph__text.tone-glyph.tone-glyph--long{--glyph-size:clamp(2.2rem, 10.5vw, 2.8rem)}.tone-pinyin{font-size:1.6rem}.tone-word{text-align:center;margin:4px 0 0;font-size:1.8rem}.tone-gloss{min-height:1.4em;color:var(--ink-2);text-align:center;margin:0}.tone-tip{margin:0}:root{--gsi-bg:#fff;--gsi-border:#747775;--gsi-ink:#1f1f1f;--gsi-hover:#f2f2f2}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--gsi-bg:#131314;--gsi-border:#8e918f;--gsi-ink:#e3e3e3;--gsi-hover:#1f1f20}}:root[data-theme=dark]{--gsi-bg:#131314;--gsi-border:#8e918f;--gsi-ink:#e3e3e3;--gsi-hover:#1f1f20}.signin{min-height:100dvh;padding:max(24px, env(safe-area-inset-top)) var(--page-pad) max(24px, env(safe-area-inset-bottom));background:var(--bg);place-items:center;display:grid}.signin__inner{text-align:center;justify-items:center;gap:12px;width:100%;max-width:340px;display:grid}.signin__mark{border-radius:18px;width:64px;height:64px}.signin__title{letter-spacing:-.02em;font-size:2rem}.signin__line{color:var(--ink-2);max-width:30ch;margin-bottom:12px}.signin__buttons{gap:10px;width:100%;display:grid}.signin__error,.profile__error{color:var(--bad);background:var(--bad-soft);border:1px solid var(--bad-border);border-radius:var(--radius);padding:8px 12px;font-size:.9rem}.signin__privacy{color:var(--ink-3);margin-top:20px;font-size:.875rem}.gsi{border:1px solid var(--gsi-border);background:var(--gsi-bg);width:100%;min-height:44px;color:var(--gsi-ink);font-family:Roboto, "Noto Sans", var(--font-ui), sans-serif;letter-spacing:.25px;transition:background var(--dur) var(--ease);border-radius:22px;justify-content:center;align-items:center;gap:10px;padding:0 12px;font-size:14px;font-weight:500;line-height:20px;text-decoration:none;display:inline-flex}.gsi:hover{background:var(--gsi-hover)}.gsi:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.gsi-g{flex:none;width:20px;height:20px}.signin__dev{border-top:1px dashed var(--border-strong);text-align:left;gap:6px;width:100%;margin-top:16px;padding-top:16px;display:grid}.signin__dev-row{gap:8px;display:flex}.input{border-radius:var(--radius);border:1px solid var(--border-strong);background:var(--surface);min-width:0;min-height:44px;color:var(--ink);flex:1;padding:0 12px}.avatar{object-fit:cover;background:var(--surface-2);border-radius:50%;flex:none;display:block}.avatar--initial{background:var(--accent);color:var(--accent-ink);place-items:center;font-weight:650;line-height:1;display:inline-grid}.avatar-link{border:2px solid #0000;border-radius:50%;flex:none;padding:2px;display:inline-flex}.avatar-link.active{border-color:var(--accent)}.avatar-link:focus-visible{outline:2px solid var(--focus);outline-offset:2px}@media (max-width:430px){.app-header--account .brand span{display:none}.app-header--account .app-header__inner{gap:10px}}.profile__who{align-items:center;gap:16px;display:flex}.profile__names{gap:2px;min-width:0;display:grid}.profile__name{overflow-wrap:anywhere;font-size:1.15rem;font-weight:650}.profile__email{overflow-wrap:anywhere}.profile__actions{justify-items:center;gap:6px;margin:20px 0 8px;display:grid}.profile__data{justify-items:start;gap:12px;margin-top:28px;display:grid}.profile__confirm{gap:8px;margin-top:16px;display:grid}.btn--danger{background:var(--bad);color:#fff}.btn--danger:hover:not(:disabled){filter:brightness(.95)}.btn--danger-outline{background:var(--surface);border-color:var(--bad-border);color:var(--bad)}.btn--danger-outline:hover:not(:disabled){background:var(--bad-soft)}.privacy h1{margin:16px 0 12px;font-size:1.8rem}.privacy h2{margin:24px 0 8px;font-size:1.1rem}.privacy p,.privacy li{color:var(--ink-2);line-height:1.55}.privacy ul{gap:8px;padding-left:20px;display:grid}.privacy__brand{color:var(--ink);align-items:center;gap:8px;font-weight:700;text-decoration:none;display:inline-flex}.privacy__brand svg{border-radius:8px;width:28px;height:28px}