:root{--paper:#f2f4f7;--surface:#fff;--ink:#18263b;--ink-soft:#586579;--line:#d3dae3;--action:#27447a;--on-action:#fff;--red:#c0352a;--red-wash:#fbeeec;--green:#2c7352;--font-ui:-apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;--font-target:"Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", "Songti SC", Georgia, serif;--gutter:20px;--radius:10px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--paper:#0f1722;--surface:#182231;--ink:#e7ebf1;--ink-soft:#9ba7b8;--line:#2c394a;--action:#4a72bd;--on-action:#fff;--red:#f08377;--red-wash:#33201f;--green:#74c79f}}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--paper);color:var(--ink);font-family:var(--font-ui);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;margin:0;font-size:16px;line-height:1.55}h1,h2,h3,p,ol,ul{margin:0}ol,ul{padding:0;list-style:none}button,input,textarea{font:inherit;color:inherit}button{cursor:pointer}:focus-visible{outline:2px solid var(--action);outline-offset:2px}.target-text{font-family:var(--font-target)}.muted{color:var(--ink-soft)}.small{font-size:.875rem}.error{color:var(--red)}.sr-only{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.screen-message{min-height:100dvh;color:var(--ink-soft);place-items:center;display:grid}.page{max-width:480px;min-height:100dvh;padding:calc(env(safe-area-inset-top) + 20px) var(--gutter) calc(env(safe-area-inset-bottom) + 32px);flex-direction:column;gap:20px;margin:0 auto;display:flex}.stack{flex-direction:column;gap:16px;display:flex}.notice{border:1px dashed var(--line);border-radius:var(--radius);flex-direction:column;align-items:flex-start;gap:12px;padding:16px;display:flex}.button{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);min-height:48px;color:var(--ink);justify-content:center;align-items:center;gap:8px;padding:0 18px;font-weight:600;text-decoration:none;display:inline-flex}.button.primary{border-color:var(--action);background:var(--action);width:100%;min-height:54px;color:var(--on-action);font-size:1.0625rem}.button.strong{border-color:var(--ink);background:var(--ink);color:var(--paper)}.button:disabled,.icon-button:disabled{opacity:.45;cursor:default}.button-row{gap:10px;display:flex}.button-row>*{flex:1}.text-link{min-height:44px;color:var(--ink-soft);text-decoration:underline;-webkit-text-decoration-color:var(--line);text-decoration-color:var(--line);text-underline-offset:4px;background:0 0;border:0;align-items:center;gap:5px;padding:0 4px;font-size:.9375rem;display:inline-flex}.icon-button{width:44px;height:44px;color:var(--ink);background:0 0;border:0;border-radius:50%;flex:none;place-items:center;display:inline-grid}.icon-button.outlined{border:1px solid var(--line);background:var(--surface)}.icon-button.filled{background:var(--action);color:var(--on-action)}.icon-button.mic{border:1px solid var(--line);background:var(--surface)}.icon-button.mic.recording{border-color:var(--red);background:var(--red);color:#fff}.mic-seconds{font-variant-numeric:tabular-nums;font-size:.9375rem;font-weight:700}.mic-spinner{border:2px solid var(--line);border-top-color:var(--ink);border-radius:50%;width:18px;height:18px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){.mic-spinner{animation:none}}.login{text-align:center;justify-content:center;align-items:center;gap:6px}.login-mark{background:var(--action);width:96px;height:96px;color:var(--on-action);place-items:center;margin-bottom:14px;font-size:3.25rem;line-height:1;display:grid}.login-title{letter-spacing:.02em;font-size:1.75rem}.login-form{text-align:left;flex-direction:column;gap:10px;width:100%;margin-top:28px;display:flex}.login-form label{color:var(--ink-soft);font-size:.875rem}.login-form input{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);height:52px;padding:0 14px}.home-header{justify-content:space-between;align-items:center;display:flex}.home-header h1{font-size:1.25rem}.home-header nav{gap:6px;display:flex}.home-header .text-link{white-space:nowrap;font-size:.875rem}.today{border-top:2px solid var(--ink);border-bottom:1px solid var(--line);flex-direction:column;gap:10px;padding:26px 0 30px;display:flex}.today-date{color:var(--ink-soft);font-size:.9375rem}.today h2{letter-spacing:-.01em;text-wrap:balance;font-size:1.875rem;line-height:1.25}.today-mission{font-size:1.0625rem}.today .button.primary,.today .button-row{margin-top:14px}.done-line{color:var(--green);align-items:center;gap:6px;margin-top:8px;font-weight:600;display:flex}.week{flex-direction:column;gap:12px;display:flex}.week h3{font-size:1rem}.week-days{grid-template-columns:repeat(5,1fr);gap:8px;display:grid}.week-day{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);flex-direction:column;align-items:center;gap:6px;width:100%;padding:10px 0 12px;display:flex}.week-day-name{color:var(--ink-soft);font-size:.8125rem}.week-day-mark{height:24px;font-family:var(--font-target);color:var(--ink-soft);place-items:center;font-size:1rem;display:grid}.week-day.doing{border-style:dashed;border-color:var(--action)}.week-day.doing .week-day-mark{color:var(--action)}.week-day.done{border-color:var(--green)}.week-day.done .week-day-mark{color:var(--green)}.week-day.today-slot{box-shadow:inset 0 -3px 0 var(--ink)}.week-day.today-slot .week-day-name{color:var(--ink);font-weight:700}.lesson{flex-direction:column;max-width:480px;height:100dvh;margin:0 auto;display:flex}.lesson-header{padding:calc(env(safe-area-inset-top) + 8px) var(--gutter) 10px;border-bottom:1px solid 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var(--line);top:0;bottom:0;left:50%}.kana-glyph{z-index:1;font-family:var(--font-target);color:var(--ink);font-size:clamp(8rem,46vw,11.5rem);line-height:1;position:relative}.kana-answer{text-align:center;justify-content:center;align-items:baseline;gap:14px;min-height:56px;display:flex}.kana-hira{font-family:var(--font-target);font-size:2.5rem;line-height:1}.kana-romaji{color:var(--ink-soft);font-size:1.375rem}.kana-actions{width:100%;margin-top:auto}.kana-done{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:10px;display:flex}.kana-done-title{font-size:1.25rem;font-weight:700}.pattern{border-top:2px solid var(--ink);padding-top:18px}.pattern-title{font-size:1.75rem;font-weight:600;line-height:1.3}.pattern-meaning{color:var(--ink-soft);margin-top:2px}.examples{margin-top:12px}.example{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;padding:12px 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li.used{border-color:var(--green);color:var(--green)}.messages{flex-direction:column;gap:18px;display:flex}.message{flex-direction:column;gap:6px;max-width:88%;display:flex}.message.assistant{align-self:flex-start;align-items:flex-start}.message.user{align-self:flex-end;align-items:flex-end}.bubble{overflow-wrap:anywhere;white-space:pre-wrap;border-radius:16px;padding:10px 14px;font-size:1.1875rem;line-height:1.5}.message.assistant .bubble{background:var(--surface);border:1px solid var(--line);border-top-left-radius:4px}.message.user .bubble{background:var(--action);color:var(--on-action);border-top-right-radius:4px}.gloss{color:var(--ink-soft);padding:0 4px;font-size:.9375rem}.gloss-reading{color:var(--ink)}.message-tools{gap:12px;padding:0 2px;display:flex}.message-tools .text-link{min-height:32px;font-size:.875rem}.natural{color:var(--green);align-items:center;gap:4px;font-size:.875rem;display:inline-flex}.typing{gap:5px;padding:16px;display:inline-flex}.typing span{background:var(--ink-soft);border-radius:50%;width:6px;height:6px;animation:1.2s ease-in-out infinite blink}.typing span:nth-child(2){animation-delay:.15s}.typing span:nth-child(3){animation-delay:.3s}@keyframes blink{0%,80%,to{opacity:.25}40%{opacity:1}}@media (prefers-reduced-motion:reduce){.typing span{animation:none}}.composer{align-items:flex-end;gap:8px;width:100%;display:flex}.composer textarea{border:1px solid var(--line);background:var(--surface);resize:none;field-sizing:content;border-radius:24px;flex:1;min-height:48px;max-height:120px;padding:11px 14px;font-size:1.0625rem;line-height:1.45}.composer-note{align-self:flex-start}.composer .icon-button{width:48px;height:48px}.correction{border-left:3px solid var(--red);background:var(--red-wash);text-align:left;width:100%;padding:12px 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.text-link{align-self:flex-start}.setting-head{justify-content:space-between;align-items:baseline;font-weight:600;display:flex}.setting-value{font-variant-numeric:tabular-nums;color:var(--ink-soft)}.setting input[type=range]{width:100%;height:32px;accent-color:var(--action)}.setting-scale{color:var(--ink-soft);justify-content:space-between;margin-top:-6px;font-size:.8125rem;display:flex}.setting select{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);width:100%;height:48px;color:var(--ink);font:inherit;padding:0 12px}.inline-link{color:var(--action);text-underline-offset:3px}@media (prefers-color-scheme:dark){.inline-link{color:#9dbcf2}}