:root{font-family:'DM Sans',system-ui,-apple-system,BlinkMacSystemFont,sans-serif;color:#202943;background:#f7f6f3;font-synthesis:none;-webkit-font-smoothing:antialiased;--primary:#4e58c8;--primary-soft:#eeefff;--ink:#202943;--muted:#7b8297;--border:#e8e9ee;--card:#fff;--coral:#f3a39d;--green:#1c916a;--red:#bd4c58}*{box-sizing:border-box}html,body{margin:0;min-height:100%}body{overflow-x:hidden}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.52}a{color:inherit;text-decoration:none}.jp{font-family:'Noto Sans JP',sans-serif}.app{min-height:100vh;display:flex}.sidebar{width:248px;flex-shrink:0;position:sticky;top:0;height:100vh;background:#fff;border-right:1px solid var(--border);padding:30px 17px;display:flex;flex-direction:column;z-index:3}.brand{display:flex;align-items:center;gap:12px;padding:0 10px 30px}.brand-mark{width:44px;height:44px;border-radius:16px;background:var(--primary);color:white;display:grid;place-items:center;font-size:23px;font-weight:700;box-shadow:0 6px 13px #4e58c82a}.brand-title{font-size:18px;font-weight:800;line-height:1.15;letter-spacing:-.6px}.brand-sub{font-size:11px;color:#969bad;margin-top:4px}.nav{display:flex;flex-direction:column;gap:5px}.nav button{width:100%;border:0;border-radius:12px;background:transparent;color:#697287;text-align:left;padding:13px 15px;display:flex;gap:13px;align-items:center;font-weight:650;font-size:14px;transition:background .15s}.nav button.active{color:var(--primary);background:#efefff}.nav button:hover:not(.active){background:#f7f7fc}.nav .ico{font-size:18px;display:inline-grid;place-items:center;width:22px}.side-bottom{margin-top:auto;padding:18px 15px;border-radius:15px;background:#f8f8ff;color:#565f8a;font-size:12px;line-height:1.6}.side-bottom strong{display:block;color:#31395c;font-size:13px;margin-bottom:2px}.main{flex:1;min-width:0;max-width:1220px;padding:36px 45px 80px;margin:0 auto}.mobile-top,.mobile-nav{display:none}.page-head{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:28px}.eyebrow{text-transform:uppercase;letter-spacing:2px;font-weight:800;font-size:10px;color:var(--primary);margin-bottom:9px}.h1{font-size:clamp(28px,3.1vw,38px);line-height:1.2;letter-spacing:-1.45px;font-weight:800;margin:0}.sub{color:var(--muted);line-height:1.65;margin:9px 0 0;font-size:14px}.btn{border-radius:12px;display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:45px;padding:11px 19px;font-weight:750;border:1px solid transparent;white-space:nowrap;transition:transform .15s,box-shadow .15s}.btn:active{transform:scale(.98)}.btn.primary{background:var(--primary);color:white;box-shadow:0 7px 17px #4e58c825}.btn.primary:hover{background:#414bb8;box-shadow:0 8px 20px #4e58c835}.btn.secondary{background:#fff;color:#424b79;border-color:#dfe2f1}.btn.ghost{background:transparent;color:#59627d}.btn.warn{color:#b24450;background:#fff;border:1px solid #eacbd0}.btn.sm{min-height:36px;padding:7px 13px;font-size:12px;border-radius:10px}.btn.full{width:100%}.grid{display:grid;gap:18px}.stats{grid-template-columns:repeat(4,minmax(0,1fr))}.two{grid-template-columns:minmax(0,1.35fr) minmax(260px,1fr)}.three{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:23px;box-shadow:0 5px 24px #1d254508}.stat-label{font-size:12px;color:#7e8496;font-weight:650}.stat-value{font-size:30px;letter-spacing:-1.25px;font-weight:800;margin-top:12px}.stat-note{font-size:11px;color:#959bab;margin-top:5px}.section-head{display:flex;justify-content:space-between;align-items:baseline;margin:31px 0 16px;gap:15px}.section-head h2{font-size:19px;font-weight:800;letter-spacing:-.5px;margin:0}.section-head span{color:var(--muted);font-size:12px}.hero{border-radius:22px;background:#e8e9fa;min-height:235px;padding:32px 36px;display:flex;justify-content:space-between;gap:20px;align-items:center;overflow:hidden;position:relative}.hero::before{content:'';position:absolute;width:320px;height:320px;border-radius:50%;background:#d9dcf5;right:-90px;top:-165px}.hero::after{content:'';position:absolute;width:160px;height:160px;border:2px solid #c9ccf1;border-radius:50%;right:80px;bottom:-95px}.hero h2{font-size:clamp(23px,2.6vw,32px);letter-spacing:-.9px;margin:0;max-width:490px;line-height:1.29}.hero p{color:#5f648a;line-height:1.6;font-size:13px;max-width:450px;margin:10px 0 19px}.hero .deco{font-size:105px;color:#b1b5e8;font-weight:700;transform:rotate(-12deg);z-index:1;flex-shrink:0}.chip{border-radius:25px;background:#f4f4ff;color:#4f57a0;padding:5px 10px;display:inline-block;font-size:11px;font-weight:800}.chip.neutral{color:#667084;background:#f3f4f7}.chip.mint{color:#228167;background:#e5f7ef}.skill-row{display:flex;align-items:center;gap:12px;padding:12px 0}.skill-row+.skill-row{border-top:1px solid #f0f1f4}.skill-icon{width:40px;height:40px;flex-shrink:0;background:#f3f3ff;color:#515abd;font-weight:800;border-radius:13px;display:grid;place-items:center;font-size:15px}.skill-info{flex:1;min-width:0}.skill-name{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:12px;font-weight:750;margin-bottom:8px}.skill-name span:last-child{color:#8b91a0;font-size:11px}.bar{height:7px;border-radius:10px;background:#edf0f6;overflow:hidden}.bar>i{display:block;height:100%;border-radius:10px;background:#646fda;min-width:0}.small{font-size:12px;color:var(--muted);line-height:1.6}.footnote{font-size:11px;color:#979dac;line-height:1.6}.info-line{display:flex;gap:10px;align-items:flex-start;padding:11px 0;border-bottom:1px solid #f0f1f4;font-size:13px;line-height:1.5}.info-line:last-child{border:0}.info-line b{color:var(--primary)}.metric{font-weight:800;font-size:20px}.mode-card{border:1px solid #e9eaf0;background:#fff;text-align:left;border-radius:18px;padding:22px;transition:transform .18s,box-shadow .18s;display:block;width:100%;height:100%}.mode-card:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 24px #23294712;border-color:#cacdf0}.mode-icon{display:grid;place-items:center;width:45px;height:45px;border-radius:15px;background:#eeefff;color:#4e58c8;font-size:21px;margin-bottom:16px}.mode-card h3{font-size:15px;margin:0 0 7px;letter-spacing:-.15px}.mode-card p{font-size:12px;line-height:1.6;color:#7e8698;margin:0}.mode-card .tail{margin-top:16px;font-size:12px;color:var(--primary);font-weight:800}.panel-tools{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.form-field{display:flex;flex-direction:column;gap:8px;margin-bottom:17px}.form-field label{font-size:12px;color:#646d86;font-weight:800}.form-field input,.form-field select{width:100%;padding:12px 14px;border:1px solid #dfe2e9;border-radius:11px;background:#fff;color:#293049;outline:none;min-height:45px}.form-field input:focus,.form-field select:focus{border-color:#6871d6;box-shadow:0 0 0 3px #e9eaff}.setting-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:17px 0;border-bottom:1px solid #eff0f4}.setting-row:last-child{border:0}.setting-row b{display:block;font-size:13px}.setting-row p{margin:4px 0 0;color:#8a91a1;font-size:12px;line-height:1.5}.toggle{appearance:none;display:block;width:44px;height:25px;border:0;background:#d7d9e5;border-radius:20px;position:relative;flex-shrink:0}.toggle::after{content:'';position:absolute;width:19px;height:19px;top:3px;left:3px;background:white;border-radius:50%;box-shadow:0 2px 4px #2222;transition:transform .2s}.toggle:checked{background:#5864d7}.toggle:checked::after{transform:translateX(19px)}.onboarding{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 90% 15%,#e5e6ff 0,transparent 32%),#f7f6f3;padding:20px}.onboard-inner{width:100%;max-width:780px}.onboard-title{font-size:clamp(32px,5vw,51px);letter-spacing:-2px;line-height:1.12;margin:18px 0 12px}.onboard-desc{font-size:15px;line-height:1.75;color:#767c91;max-width:500px;margin-bottom:26px}.choice{border:1px solid #e1e4ec;border-radius:16px;padding:20px;background:#fff;text-align:left;flex:1;display:flex;gap:16px;min-width:0;align-items:center}.choice.active{border-color:#5b66d5;box-shadow:0 0 0 3px #dfe2ff}.choice-icon{font-size:27px}.choice b{font-size:14px}.choice p{font-size:12px;color:#81899d;margin:5px 0 0;line-height:1.5}.choice-row{display:flex;gap:12px}.minutes{display:flex;gap:10px;flex-wrap:wrap}.minutes button{background:#fff;border:1px solid #e3e5ed;border-radius:10px;padding:12px 15px;font-weight:750;color:#5e6881}.minutes button.active{background:#eef0ff;color:#4c56b9;border-color:#6974d4}.session-wrap{max-width:780px;margin:0 auto}.session-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:21px}.progress-track{height:9px;background:#e6e8f0;border-radius:20px;overflow:hidden;margin:16px 0 24px}.progress-track div{height:100%;background:#5a66d6;border-radius:20px;transition:width .2s}.quiz-card{padding:34px;min-height:330px}.question-kicker{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12px;color:#888f9e;font-weight:700}.question-title{font-size:clamp(22px,3.1vw,29px);font-weight:800;letter-spacing:-.65px;margin:22px 0 14px;line-height:1.45}.big-jp{font-family:'Noto Sans JP';font-size:clamp(36px,7vw,62px);line-height:1.5;letter-spacing:1px;color:#273057;margin:15px 0 25px}.passage{font-family:'Noto Sans JP';padding:21px;background:#f8f8fe;border-radius:12px;font-size:19px;line-height:2;color:#273057;margin:16px 0}.answers{display:grid;gap:10px;grid-template-columns:1fr 1fr;margin-top:22px}.answer-option{background:#fff;text-align:left;border:1px solid #e2e5ef;border-radius:12px;padding:15px 17px;min-height:59px;color:#273047;font-weight:700;line-height:1.6}.answer-option.active{border-color:#6870d3;background:#f0f1ff}.answer-option.correct{border-color:#63bb96;background:#eaf9f0}.answer-option.wrong{border-color:#d98996;background:#fff1f2}.type-input{padding:16px 19px;border-radius:13px;font-size:19px;min-height:61px;width:100%;border:1px solid #dfe2eb;outline:none}.type-input:focus{border-color:#6974da;box-shadow:0 0 0 3px #edeeff}.audio-btn{background:#eceefd;border:1px solid #d8dcf6;color:#4b56b6;font-weight:800;padding:15px 19px;border-radius:13px;margin:15px 0}.hint-box{font-size:12px;color:#7e6b50;background:#fff8ee;padding:14px;border-radius:10px;margin-top:15px}.order-answer{min-height:69px;padding:12px;background:#f8f8fc;border:1px dashed #cdd1e6;border-radius:12px;display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}.word{border:1px solid #dadff1;background:white;color:#343d63;border-radius:10px;padding:9px 13px;font-family:'Noto Sans JP';font-size:15px;font-weight:700}.word.selected{background:#e4e6fa;border-color:#777fcb}.feedback{margin-top:19px;padding:18px 20px;border-radius:13px;display:flex;gap:13px;align-items:flex-start}.feedback.good{background:#eaf8f0;color:#236948}.feedback.bad{background:#fff0f0;color:#8d3948}.feedback b{display:block;margin-bottom:5px}.feedback p{margin:0;font-size:13px;line-height:1.6}.quiz-actions{display:flex;gap:12px;justify-content:space-between;align-items:center;margin-top:20px}.quiz-actions .right{margin-left:auto}.summary-emoji{width:74px;height:74px;border-radius:24px;background:#e9ebfd;color:#5661c9;display:grid;place-items:center;font-size:38px;margin:4px auto 18px}.summary-stat{text-align:center;padding:17px;background:#f8f8fc;border-radius:14px}.summary-stat strong{font-size:27px;display:block}.summary-stat span{font-size:11px;color:#858c9e}.empty{padding:45px 25px;text-align:center;color:#9299a9}.empty h3{color:#333e5a;margin-bottom:6px}.empty .sign{font-size:40px}.library-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:12px}.library-item{background:#fff;border:1px solid #eaecf2;padding:14px;border-radius:13px;min-height:107px}.library-item .char{font-family:'Noto Sans JP';font-size:26px;color:#333d68;margin:4px 0}.library-item .meaning{font-size:12px;color:#737c93}.library-item .tag{font-size:10px;color:#9ba1af;margin-top:8px}.timeline{display:flex;align-items:end;gap:8px;height:115px;border-bottom:1px solid #e8e8ee;margin:20px 0 8px}.timeline-item{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%;position:relative}.timeline-item .fill{width:min(34px,100%);background:#7880dd;border-radius:7px 7px 0 0;min-height:2px}.timeline-item .day{position:absolute;bottom:-27px;color:#949aab;font-size:10px}.days-spacer{height:29px}.exam-note{background:#f6f7ff;border:1px solid #e6e8fb;border-radius:13px;padding:15px 17px;color:#656b98;font-size:12px;line-height:1.7;margin-top:16px}.toast{position:fixed;bottom:25px;right:25px;padding:13px 17px;border-radius:12px;background:#222b47;color:#fff;box-shadow:0 12px 30px #20294330;font-size:13px;z-index:20;max-width:360px}.hidden{display:none!important}.wide-stack{display:flex;flex-direction:column;gap:16px}.kicker-faint{font-size:12px;color:#9da4b0;font-weight:700}.kbd{padding:2px 6px;background:#f2f2f7;border-radius:5px;font-size:11px;color:#8990a1}.link-button{background:transparent;border:0;color:var(--primary);font-weight:800;font-size:12px;padding:0}.spacer{height:15px}#file-import{display:none}@media(max-width:1100px){.main{padding:30px 27px 80px}.stats{grid-template-columns:repeat(2,minmax(0,1fr))}.two{grid-template-columns:1fr}.hero .deco{font-size:80px}}@media(max-width:760px){.sidebar{display:none}.main{padding:22px 17px 101px}.mobile-top{display:flex;align-items:center;gap:10px;margin-bottom:28px}.mobile-top .brand-mark{width:35px;height:35px;font-size:17px;border-radius:11px}.mobile-top b{font-size:15px}.mobile-nav{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;bottom:0;left:0;right:0;background:#fff;z-index:6;border-top:1px solid #eaebf1;padding:9px 5px max(9px,env(safe-area-inset-bottom));box-shadow:0 -7px 25px #1f28460d}.mobile-nav button{background:transparent;border:0;color:#999fb2;font-size:10px;display:flex;align-items:center;flex-direction:column;gap:4px}.mobile-nav .active{color:var(--primary);font-weight:800}.mobile-nav .ico{font-size:19px}.page-head{align-items:flex-start}.h1{font-size:27px}.hero{padding:25px;min-height:unset}.hero .deco{display:none}.hero h2{font-size:22px}.card{padding:18px}.stats{gap:10px}.stat-value{font-size:24px}.three{grid-template-columns:1fr}.choice-row{flex-direction:column}.answers{grid-template-columns:1fr}.quiz-card{padding:22px}.question-title{font-size:23px}.quiz-actions{gap:6px}.quiz-actions .btn{padding:10px 13px;font-size:12px}.onboarding{padding:18px}.onboard-title{font-size:36px}.page-head .btn{min-height:39px;padding:8px 12px;font-size:11px}.toast{right:12px;left:12px;bottom:85px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}
/* v0.2: diagnostic path, paired readings and separate kana lessons */
.script-pair{display:inline-flex;flex-direction:column;vertical-align:middle;align-items:flex-start;line-height:1.25;gap:2px;margin:0 3px 3px 0}.script-pair .jp{font-family:'Noto Sans JP',sans-serif;font-weight:650}.romaji-mini{font-family:'DM Sans',sans-serif;font-size:11px;font-weight:600;color:#64718a;letter-spacing:.01em}.jp-script{font-family:'Noto Sans JP',sans-serif;font-size:inherit;white-space:pre-wrap;line-height:1.6;overflow-wrap:anywhere}.romaji-line{color:#69748b;font-family:'DM Sans',sans-serif;font-size:clamp(.78rem,.95vw,.93rem);line-height:1.65;margin-top:5px;overflow-wrap:anywhere}.big-jp{display:block;line-height:1.65}.big-jp .jp-script{font-size:clamp(26px,4vw,40px);color:#1f2a4c;font-weight:700}.big-jp .romaji-line{font-size:16px;font-weight:600;color:#556383}.answer-option{display:flex;align-items:center;gap:9px;min-height:58px;text-align:left}.option-letter{flex:0 0 20px;opacity:.5}.answer-option .script-pair{padding:2px 0}.listen-along{background:#f4f6fc;border:1px solid #e2e8f6;border-radius:13px;padding:18px;margin:20px 0}.listen-along .jp-script{font-size:21px;font-weight:600}.correct-pair{margin-top:13px;padding:12px 16px;border-radius:10px;background:#ffffffa8;border:1px solid #dae5db}.correct-pair .jp-script{font-size:20px;font-weight:650}.kana-model{background:#f4f5fd;border-radius:11px;padding:13px 16px;margin:13px 0}.kana-model .jp-script{font-size:25px}.learning-recommendation{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;margin-bottom:22px;border-left:4px solid #646dcf}.learning-recommendation h3{margin:6px 0;font-size:21px}.script-link{text-align:left}.kana-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 22px}.kana-tabs button{border:1px solid #e0e5ed;background:#f9faff;color:#485373;padding:10px 13px;border-radius:10px;cursor:pointer;font-weight:700}.kana-tabs button.active{background:#525fcb;color:white;border-color:#525fcb}.kana-learn-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}.kana-card{text-align:center;background:linear-gradient(160deg,#f7f8fd,#fff);padding:20px 8px;border:1px solid #eaecf3;border-radius:14px}.kana-card .kana-glyph{font-size:clamp(36px,4vw,53px);font-weight:650;color:#283257}.kana-reading{font-weight:750;color:#626bc6;font-size:18px;margin:6px 0}.kana-card .footnote{font-size:11px;min-height:32px}.kana-reference{display:flex;flex-direction:column;gap:16px;margin-top:22px}.kana-reference-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.kana-reference-row>div{width:70px;min-height:70px;padding:7px;background:#f8f9fc;border-radius:9px;display:flex;flex-direction:column;align-items:center;justify-content:center}.kana-reference-row strong{font-size:25px}.kana-reference-row small{color:#646fc7}.placement-plan{text-align:left;background:#f3f5fd;border:1px solid #dfe5f7;border-radius:16px;padding:23px;margin-bottom:22px}.placement-plan h2{margin:8px 0}.placement-plan p{line-height:1.65;color:#63708b}.placement-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:19px}.placement-grid>div{background:white;border:1px solid #e5e9f3;padding:12px;border-radius:9px;display:grid;grid-template-columns:1fr auto;gap:7px}.placement-grid>div>span{font-size:13px}.placement-grid .mini-track{grid-column:span 2;height:6px;background:#edf0f7;border-radius:6px;overflow:hidden}.placement-grid .mini-track i{display:block;height:100%;background:#626bc6}.script-pair .romaji-mini{word-break:break-word}button:focus-visible{outline:3px solid #838bdf;outline-offset:3px}
@media(max-width:700px){.kana-learn-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.kana-card{padding:12px 5px}.kana-card .kana-glyph{font-size:39px}.placement-grid{grid-template-columns:1fr}.kana-reference-row>div{width:55px}.answer-option{align-items:flex-start}.learning-recommendation .btn{width:100%}.romaji-line{font-size:13px}}


body {padding-top:58px}
.account-bar{position:fixed;top:0;left:0;right:0;z-index:1000;background:#f7f6f3;border-bottom:1px solid #ddd;padding:9px 18px;display:flex;gap:12px;align-items:center;justify-content:flex-end;font-size:12px;min-height:58px}.account-bar [role=status]{overflow-wrap:anywhere}.account-dialog{border:1px solid #ddd;border-radius:18px;max-width:480px;width:calc(100% - 24px);padding:24px;max-height:90dvh;overflow:auto}.account-dialog::backdrop{background:#19233a70}.account-dialog input{display:block;width:100%;min-height:44px;border:1px solid #ccd;border-radius:8px;padding:9px;margin:6px 0 14px}.account-dialog button{min-height:44px;border:1px solid #ccd;background:#f8f9fb;border-radius:8px;padding:8px 12px;margin:4px;cursor:pointer}.account-dialog label{display:block;margin-top:12px}.account-dialog details{margin-top:18px}.account-dialog p{line-height:1.6}.sidebar{top:58px!important;height:calc(100dvh - 58px)!important}button:focus-visible,input:focus-visible{outline:3px solid #4d6da9;outline-offset:3px}