@import"https://fonts.googleapis.com/css2?family=Shippori+Mincho+B1:wght@600&family=Zen+Kaku+Gothic+New:wght@400;500;700&display=swap";:root{font-family:Zen Kaku Gothic New,system-ui,sans-serif;color:#161b1f;background:#e7e9e3;--surface:#f6f7f3;--line:#c9cec6;--sub:#566068;--green:#0b6b4f;--blue:#1553a6;--gold:#f2be1a;--red:#c8372d;box-sizing:border-box}*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button{cursor:pointer}main{max-width:760px;margin:0 auto;padding:18px 16px 110px}.loading{text-align:center;padding-top:30vh}.authPage{min-height:100vh;display:grid;place-items:center;padding:20px}.authCard{width:min(440px,100%);text-align:center}.authMessage{min-height:1.4em}.guestButton{border:0;background:transparent;color:var(--sub);text-decoration:underline;padding:12px;cursor:pointer}h1{font-size:1.55rem;margin:4px 0 16px}h2{font-size:1.1rem}nav{position:fixed;z-index:10;bottom:0;left:0;right:0;display:flex;justify-content:center;gap:4px;padding:8px 6px calc(7px + env(safe-area-inset-bottom));background:var(--surface);border-top:1px solid var(--line)}nav button{background:transparent;border:0;color:var(--sub);min-width:72px;padding:7px;border-radius:10px;display:grid;place-items:center;gap:2px;font-size:.72rem}nav button.on{color:var(--green);font-weight:700;background:color-mix(in srgb,var(--gold) 20%,transparent)}.gantry{background:var(--green);color:#fff;border-radius:18px;padding:20px;margin-bottom:14px;display:grid;grid-template-columns:1fr auto;gap:8px;box-shadow:0 10px 24px #0b6b4f26}.gantry strong{display:block;font-size:1.45rem}.gantry small{display:block;color:#d9efe8}.level{text-align:center}.level b{display:block;font:600 2.4rem Shippori Mincho B1}.progress{grid-column:1/-1;height:8px;border-radius:8px;background:#ffffff40;overflow:hidden}.progress i{display:block;height:100%;background:var(--gold)}.headerStats{grid-column:1/-1;display:flex;justify-content:space-between;font-size:.85rem;gap:8px;flex-wrap:wrap}.btn{width:100%;border:0;border-radius:13px;padding:14px;font-weight:700;margin:8px 0;background:var(--gold);color:#161b1f}.btn.secondary{background:var(--surface);border:1px solid var(--line)}.sectionTitle{margin:28px 0 12px}.sectionTitle.hiragana{color:var(--green)}.sectionTitle.katakana{color:var(--blue)}.road{position:relative;padding-left:34px}.road:before{content:"";position:absolute;left:8px;top:0;bottom:0;width:18px;border-radius:12px;background:#2b3035}.road:after{content:"";position:absolute;left:16px;top:10px;bottom:10px;width:2px;background:repeating-linear-gradient(#f2be1a 0 9px,transparent 9px 18px)}.stop{position:relative;margin:10px 0}.sign{position:relative;width:100%;min-height:84px;border:0;border-radius:14px;padding:14px 18px;display:flex;justify-content:space-between;text-align:left;color:#fff;background:var(--green)}.sign.katakana{background:var(--blue)}.sign.locked{background:#7c868d;cursor:not-allowed}.sign b,.sign strong,.sign small{display:block}.sign strong{font:600 1.65rem Shippori Mincho B1;letter-spacing:.1em}.sign small{color:#eef8f3}.hanko{display:grid;place-items:center;width:44px;height:44px;border:3px solid var(--red);border-radius:50%;color:var(--red);font-weight:700;background:#fff;transform:rotate(-10deg);flex:none}.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:16px;margin:12px 0}.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:10px}.tile{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px;min-height:110px}.tile strong{display:block;font:600 3rem Shippori Mincho B1}.tile span{color:var(--sub)}.lessonTop{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}.lessonTop button{border:0;background:transparent;font-size:1.4rem}.stepper{display:flex;gap:4px;margin-bottom:16px}.stepper span{flex:1;text-align:center;padding:7px 2px;background:var(--line);border-radius:7px;font-size:.75rem;color:var(--sub)}.stepper .active{background:var(--gold);color:#161b1f;font-weight:700}.stepper .done{background:#2b3035;color:#fff}.bigKana{text-align:center;font:600 6rem Shippori Mincho B1;margin:12px}.phrase{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}.phrase b{font:600 2rem Shippori Mincho B1}.phrase span{color:var(--sub);flex:1}.phrase button{border:1px solid var(--line);background:var(--surface);border-radius:9px;padding:8px}.bubble{background:#e8eee8;padding:10px 14px;border-radius:14px;max-width:90%}.mine{margin-left:auto;background:#dcebe5}.options{display:grid;grid-template-columns:1fr 1fr;gap:10px}.options button,.chips button{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:11px}.chips{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}.chips .selected{border-color:var(--green);box-shadow:inset 0 0 0 1px var(--green);font-weight:700}.quizProgress{height:6px;border-radius:4px;background:var(--green);margin-bottom:12px}.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.stats .card{margin:0}.stats b{display:block;font-size:1.15rem;margin-top:4px}.heatmap{display:grid;grid-template-columns:repeat(14,1fr);gap:4px}.heatmap span{aspect-ratio:1;background:var(--line);border-radius:3px}.heatmap .low{background:#a9d8bd}.heatmap .mid{background:#43a875}.heatmap .high{background:var(--green)}input,textarea{width:100%;border:2px solid var(--line);border-radius:12px;padding:12px;background:var(--surface);margin:8px 0}textarea{min-height:100px}.practiceGrid{display:flex;flex-wrap:wrap;gap:8px}.writeCell{width:80px;aspect-ratio:1;border:2px solid var(--line);background:var(--surface);border-radius:10px;color:var(--line);font:600 1.5rem Shippori Mincho B1}.writeCell:focus,.writeCell:active{color:var(--green);border-color:var(--green)}.ring{--p:0;width:150px;height:150px;border-radius:50%;display:grid;place-items:center;margin:auto;background:conic-gradient(var(--gold) calc(var(--p)*1%),var(--line) 0)}.ring b{width:120px;height:120px;border-radius:50%;background:var(--surface);display:grid;place-items:center;font-size:2rem}@media (max-width:520px){main{padding-inline:12px}.stats{grid-template-columns:1fr 1fr}nav button{min-width:58px}}html[data-theme=dark]{background:#0e1215;color:#e8ecea;--surface:#171d22;--line:#29333a;--sub:#98a3ab}html[data-theme=sumi]{background:#211f1b;color:#f1eadb;--surface:#302d27;--line:#514b40;--sub:#c0b6a4;--green:#4f8d70}html[data-theme=matcha]{background:#e4eadf;--surface:#f6faf1;--line:#b7c8b3;--green:#4b7957}.writeActions{display:flex;gap:12px}.writeActions .btn{flex:1;min-height:52px}.writeLesson{padding:clamp(16px,3vw,28px)}.writeHeading{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.eyebrow{margin:0 0 4px;color:var(--green);font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.writeHeading h2{margin:0}.writeKana{display:inline-grid;place-items:center;margin-left:8px;font-size:clamp(2rem,7vw,3.8rem);font-weight:500;line-height:.8}.writePosition{color:var(--sub);font-variant-numeric:tabular-nums;white-space:nowrap}.writeRepetitions{display:flex;gap:10px;margin:20px 0 12px}.writeRep{width:42px;height:42px;border:1px solid var(--line);border-radius:50%;background:var(--surface);color:var(--sub);font-weight:700}.writeRep.current{border-color:var(--green);box-shadow:0 0 0 3px color-mix(in srgb,var(--green) 18%,transparent);color:var(--green)}.writeRep.complete{background:var(--green);border-color:var(--green);color:#fff}.writeCanvasStage{width:100%;height:min(58vh,560px);min-height:300px;border:2px solid var(--line);border-radius:20px;overflow:hidden;background:var(--surface);touch-action:none}.writeCanvasStage .writingPad{min-height:100%;background:linear-gradient(to right,transparent calc(50% - 1px),var(--line) calc(50% - 1px) calc(50% + 1px),transparent calc(50% + 1px)),linear-gradient(to bottom,transparent calc(50% - 1px),var(--line) calc(50% - 1px) calc(50% + 1px),transparent calc(50% + 1px))}.writeCanvasStage .writingPad span{font-size:min(42vh,18rem)}.writeStatus{text-align:center;margin:10px 0}.writeCount{justify-content:center;margin-bottom:0}.writeCount .sub{align-self:center}.writeCount button{min-width:42px;min-height:42px}:root{--ink:#161b1f}.tile strong,.bigKana,.phrase b,.writingPad span{font-family:Zen Kaku Gothic New,system-ui,sans-serif;font-weight:500}.bigKana{font-size:5.5rem}.writingPad{position:relative;width:100%;height:100%;aspect-ratio:1;margin:0;border-radius:0;overflow:hidden;background:linear-gradient(to right,transparent calc(50% - 1px),var(--line) calc(50% - 1px) calc(50% + 1px),transparent calc(50% + 1px)),linear-gradient(to bottom,transparent calc(50% - 1px),var(--line) calc(50% - 1px) calc(50% + 1px),transparent calc(50% + 1px));touch-action:none;container-type:inline-size;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}.writingPad span{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;color:var(--line);font-size:75cqi;line-height:1;pointer-events:none}.writingPad canvas{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;touch-action:none;user-select:none;-webkit-user-select:none}.writingPad.compact{width:100%;max-width:300px;height:auto;aspect-ratio:1;margin:12px auto;border:2px solid var(--line);border-radius:16px}.writingPad.compact span{font-size:75cqi}.practiceCell{width:82px;aspect-ratio:1}.quizCanvas{width:min(300px,100%);margin:0 auto}.talkControls{display:flex;gap:8px;align-items:center}.talkControls input{flex:1}.talkControls button{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:10px;white-space:nowrap}.fb{padding:10px;border-radius:10px;text-align:center}.fb.ok{background:#d9eedf}.fb.bad{background:#f5dddd}@media (max-width:900px){main{max-width:860px}.writeCanvasStage{height:min(62vh,620px)}}@media (max-width:600px){.writeCanvasStage{height:min(58vh,520px);min-height:280px;border-radius:16px}.writeActions{position:sticky;bottom:72px;z-index:4;padding:8px 0;background:linear-gradient(transparent,var(--surface) 30%)}.writeRep{width:44px;height:44px}.quizCanvas{width:min(300px,100%)}}:root{--navy:#101b2d;--midnight:#172b46;--sakura:#f2a7b5;--ivory:#f7f1e8;--jred:#c83e4d;--gold:#d7b46a;--matcha:#829b83;--surface:#fffaf3;--line:#ddcfbf;--sub:#6d6870;--green:#486f62;background:var(--ivory);color:var(--navy)}body{min-height:100vh;background:radial-gradient(circle at 12% 0%,#fffdf9 0 18%,transparent 42%),var(--ivory);background-attachment:fixed}body:before{content:"";position:fixed;inset:auto 0 0;height:32vh;z-index:-1;opacity:.22;background:linear-gradient(145deg,transparent 45%,#d7b46a 45% 46%,transparent 46% 52%,#829b83 52% 53%,transparent 53%);pointer-events:none}main{max-width:1020px;padding-top:28px}.card{background:#fffaf3d6;border:1px solid rgba(215,180,106,.35);border-radius:22px;box-shadow:0 18px 50px #101b2d14;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}h1,h2{color:var(--navy)}.sub,small{color:var(--sub)}.btn{border-radius:14px;background:var(--jred);color:#fff;box-shadow:0 8px 18px #c83e4d2b;transition:transform .2s ease,box-shadow .2s ease}.btn:hover{transform:translateY(-2px);box-shadow:0 12px 24px #c83e4d38}.btn.secondary{background:transparent;color:var(--navy);border:1px solid var(--gold);box-shadow:none}.btn:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #d7b46a99;outline-offset:2px}nav{background:#101b2df0;border-top:1px solid #d7b46a66;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);box-shadow:0 -10px 30px #101b2d1f}nav button{color:#d9d3ca;min-height:52px;border-radius:14px}nav button.on{color:#fff;background:#c83e4d}.gantry{background:linear-gradient(135deg,var(--navy),var(--midnight));border:1px solid #d7b46a66;border-radius:24px;box-shadow:0 20px 50px #101b2d30}.gantry small{color:#f2d9c5}.progress{background:#ffffff2e}.progress i{background:var(--gold)}.roadHero{position:relative;display:grid;grid-template-columns:1.1fr .9fr;min-height:300px;overflow:hidden;margin-bottom:16px;border:1px solid #d7b46a55;border-radius:28px;background:linear-gradient(120deg,#101b2d,#172b46 55%,#486f62);color:#fff;box-shadow:0 24px 60px #101b2d30}.roadHeroCopy{position:relative;z-index:2;padding:clamp(24px,5vw,56px)}.roadHero h1{max-width:440px;margin:6px 0;color:#fff;font-size:clamp(2rem,5vw,3.8rem);line-height:1.05}.roadHero p:not(.eyebrow){color:#f5e8dc;font-size:1.05rem}.roadHero .eyebrow,.eyebrow{color:var(--sakura);font-weight:700;letter-spacing:.1em;text-transform:uppercase;font-size:.75rem}.roadHero .btn{width:auto;padding-inline:24px;margin-top:18px}.roadHeroArt{position:absolute;top:0;right:0;bottom:0;left:52%;overflow:hidden}.roadHeroArt:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 70% 22%,#f2a7b5 0 6%,transparent 6.5%),linear-gradient(160deg,transparent 35%,#829b83 35% 48%,#101b2d 48%)}.roadMoon{position:absolute;right:20%;top:16%;font-size:clamp(4rem,10vw,8rem);color:#f7f1e8aa;font-family:serif}.roadMountain{position:absolute;right:8%;bottom:-10%;width:80%;height:72%;clip-path:polygon(0 100%,45% 0,100% 100%);background:linear-gradient(140deg,#f7f1e8 0,#f7f1e8 20%,#829b83 20%,#829b83 52%,#101b2d 52%)}.journeyStats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:18px}.journeyStat{padding:16px;border:1px solid #d7b46a55;border-radius:18px;background:#fffaf3cc;box-shadow:0 8px 24px #101b2d0b}.journeyStat small,.journeyStat span{display:block;color:var(--sub)}.journeyStat b{display:block;color:var(--navy);font-size:1.4rem;margin:5px 0}.dailyPhrase{margin:18px 0;color:var(--navy);font-family:Georgia,serif}.dailyPhrase span{color:var(--jred);font-size:.8rem;font-family:inherit;margin-right:8px}.sectionTitle{color:var(--navy)!important;font-size:1.25rem}.sign{background:linear-gradient(120deg,#486f62,#315c58);border:1px solid #d7b46a66;border-radius:18px;box-shadow:0 8px 20px #101b2d12}.sign.katakana{background:linear-gradient(120deg,#172b46,#25466a)}.sign.locked{background:#918d8a}.tile{background:#fffaf3cc;border-color:#d7b46a55;border-radius:18px;transition:transform .2s ease,box-shadow .2s ease}.tile:hover{transform:translateY(-3px);box-shadow:0 12px 24px #101b2d14}.stepper span{background:#eadfd3}.stepper .active{background:var(--jred);color:#fff}.stepper .done{background:var(--navy)}.authPage{position:relative;isolation:isolate;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);align-items:center;gap:clamp(24px,7vw,100px);min-height:100vh;max-width:none;padding:clamp(24px,6vw,80px);overflow:hidden;background:linear-gradient(110deg,#101b2df5,#172b46dd)}.authPage:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:-3;background:linear-gradient(180deg,#101b2d44,#101b2dee),linear-gradient(145deg,#172b46 0,#172b46 50%,#486f62 50%,#486f62)}.authPage:after{content:"";position:absolute;top:50%;right:-10%;bottom:-20%;left:-10%;z-index:-2;background:linear-gradient(155deg,transparent 0 38%,#829b83 39% 58%,#101b2d 59%);clip-path:polygon(0 35%,45% 0,100% 35%,100% 100%,0 100%);opacity:.85}.authLandscape{position:absolute;top:0;right:0;bottom:0;left:0;z-index:-1;pointer-events:none}.authSun{position:absolute;left:12%;top:16%;width:clamp(90px,12vw,170px);aspect-ratio:1;border-radius:50%;background:#f2a7b5aa;box-shadow:0 0 80px #f2a7b555}.authFuji{position:absolute;left:5%;right:35%;bottom:-15%;height:70%;clip-path:polygon(0 100%,48% 0,100% 100%);background:linear-gradient(145deg,#f7f1e8 0,#f7f1e8 18%,#829b83 18%,#829b83 55%,#101b2d 56%)}.authTorii{position:absolute;right:9%;bottom:17%;width:130px;height:150px;opacity:.55}.authTorii:before,.authTorii:after{content:"";position:absolute;background:var(--jred)}.authTorii:before{left:10%;right:10%;top:12%;height:14px;box-shadow:0 24px 0 -2px var(--jred)}.authTorii:after{left:25%;width:12px;top:24%;bottom:0;box-shadow:68px 0 0 var(--jred)}.authPetals{position:absolute;top:12%;right:22%;color:var(--sakura);font-size:2rem;letter-spacing:1rem;opacity:.7}.authContent{position:relative;z-index:1;max-width:560px;color:#fff}.brandLockup{display:flex;align-items:center;gap:12px;margin-bottom:clamp(48px,10vh,120px)}.brandMark{display:grid;place-items:center;width:52px;height:52px;border:1px solid #d7b46a99;border-radius:16px;background:#c83e4d;color:#fff;font-size:1.7rem;font-family:serif;box-shadow:0 10px 24px #0003}.brandLockup b,.brandLockup small{display:block}.brandLockup b{font-size:1.25rem;letter-spacing:.04em}.brandLockup small{color:#f2a7b5}.authCopy h1{margin:0;color:#fff;font-size:clamp(2.4rem,5vw,5rem);line-height:1.02}.authCopy p:not(.eyebrow){font-size:1.1rem;color:#f7f1e8cc}.authCard{width:100%;margin:0;padding:clamp(22px,4vw,36px);background:#f7f1e8ee;color:var(--navy);border:1px solid #ffffff66}.authCard h2{margin:0 0 18px;font-size:1.7rem}.authKicker{margin:0 0 5px;color:var(--jred);font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em}.authCard input{background:#fffdf9;border-color:#d7b46a88;color:var(--navy);padding:14px}.authCard .btn{margin-top:10px}.authCard .guestButton{color:var(--navy)}@media (max-width:760px){.authPage{display:block;padding:28px 18px 48px;min-height:100svh}.authContent{max-width:520px;margin:0 auto}.brandLockup{margin-bottom:46px}.authCopy{margin-bottom:28px}.authCopy h1{font-size:clamp(2.2rem,12vw,3.4rem)}.authLandscape{opacity:.55}.authTorii{right:-2%;bottom:8%}.journeyStats{grid-template-columns:repeat(2,1fr)}.roadHero{grid-template-columns:1fr;min-height:360px}.roadHeroArt{top:42%;right:0;bottom:0;left:0}.roadHeroCopy{padding-bottom:120px}.gantry{border-radius:20px}}@media (max-width:420px){main{padding-inline:12px}.journeyStats{gap:8px}.journeyStat{padding:12px}.journeyStat b{font-size:1.15rem}.stepper span{font-size:.68rem}.authCard{border-radius:18px}}@media (prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}