:root{--ink:#1f2a3a;--muted:#6e7786;--paper:#fff;--soft:#f5f8fc;--line:#dfe6ef;--accent:#244f87;--accent2:#ffca57;--ok:#2a8b68;--bad:#c95757;--shadow:0 18px 50px rgba(27,45,70,.12)}
*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:linear-gradient(180deg,#f6f9fd,#edf3f9);min-height:100vh}.topbar{height:72px;display:flex;align-items:center;padding:0 28px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:inherit;margin-right:auto}.brand img{width:46px;height:46px;object-fit:contain}.brand span{display:flex;flex-direction:column}.brand strong{font-size:16px}.brand small{color:var(--muted);font-weight:700;letter-spacing:.04em}.profile-pill{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:99px;background:var(--soft);font-size:13px;font-weight:700;margin-right:10px}.profile-pill .dot{width:8px;height:8px;border-radius:50%;background:#aab4c1}.profile-pill.saved .dot{background:var(--ok)}button,.file-btn{font:inherit}.icon-btn,.ghost,.secondary,.modal-actions button,.file-btn{border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 13px;cursor:pointer;color:var(--ink)}.primary{border:0;background:var(--accent);color:white;border-radius:11px;padding:11px 16px;font-weight:800;cursor:pointer}.app-shell{max-width:1180px;margin:0 auto;padding:34px 24px 70px}.hero{background:linear-gradient(135deg,#183a68,#2d679f);border-radius:26px;padding:35px 42px;color:#fff;display:flex;align-items:center;min-height:230px;overflow:hidden;box-shadow:var(--shadow);position:relative}.hero:before{content:"";position:absolute;inset:0;background:url('assets/seigaiha_navy.png') center/520px;opacity:.08}.hero>div,.hero>img{position:relative;z-index:1}.hero>div{max-width:720px}.hero h1{font-size:clamp(30px,4vw,48px);line-height:1.06;margin:4px 0 14px}.hero p{font-size:17px;line-height:1.6;margin:0;opacity:.9}.hero img{width:190px;margin-left:auto;align-self:flex-end}.eyebrow{text-transform:uppercase;letter-spacing:.13em;font-weight:900;font-size:11px!important;opacity:.72}.summary-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:24px 0}.summary-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;display:flex;flex-direction:column;box-shadow:0 7px 24px rgba(27,45,70,.05)}.summary-card span{font-size:12px;color:var(--muted);font-weight:800}.summary-card strong{font-size:26px;margin:4px 0}.summary-card small{color:var(--muted)}.toolbar-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:13px;display:flex;gap:14px;align-items:center;margin-bottom:28px}.segmented{display:flex;gap:5px;background:var(--soft);padding:4px;border-radius:12px;flex:1}.segmented button{flex:1;border:0;background:transparent;border-radius:9px;padding:10px;cursor:pointer;font-weight:800;color:var(--muted)}.segmented button.active{background:#fff;color:var(--accent);box-shadow:0 2px 8px rgba(0,0,0,.06)}.path-section{background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px;box-shadow:0 10px 30px rgba(27,45,70,.05)}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end}.section-head h2{margin:0;font-size:25px}.section-head>p{max-width:530px;color:var(--muted);font-size:14px;line-height:1.55}.lesson-path{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}.lesson{border:1px solid var(--line);border-radius:16px;padding:18px;background:#fff;text-align:left;cursor:pointer;transition:.16s;position:relative;min-height:145px}.lesson:hover:not(:disabled){transform:translateY(-2px);border-color:#b8c8da;box-shadow:0 8px 20px rgba(27,45,70,.08)}.lesson:disabled{opacity:.48;cursor:not-allowed;background:#f7f8fa}.lesson .num{position:absolute;right:14px;top:13px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:var(--soft);font-size:12px;font-weight:900}.lesson h3{margin:0 42px 5px 0;font-size:17px}.lesson .kana-preview{font-size:24px;letter-spacing:.08em;margin:12px 0 8px}.lesson .meter{height:7px;background:#edf1f5;border-radius:9px;overflow:hidden}.lesson .meter i{display:block;height:100%;background:var(--ok)}.lesson small{display:block;color:var(--muted);margin-top:7px}.lesson.complete{border-color:#9bd2c0;background:#f7fffb}.tools-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:13px;margin-top:18px}.tool-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:17px;text-align:left;cursor:pointer}.tool-card b{display:block;font-size:20px;margin-bottom:4px}.tool-card span{color:var(--muted);font-size:13px}.view{display:none}.view.active{display:block}.practice-top{display:grid;grid-template-columns:180px 1fr 210px;gap:18px;align-items:center;margin-bottom:18px}.practice-title{text-align:center}.practice-title span{display:block;color:var(--muted);font-size:12px;font-weight:800;text-transform:uppercase}.practice-title strong{font-size:20px}.session-progress{text-align:right;font-size:12px;color:var(--muted);font-weight:800}.session-progress>div{height:7px;background:#dfe6ef;border-radius:8px;margin-top:6px;overflow:hidden}.session-progress i{display:block;height:100%;background:var(--ok);width:0}.practice-card{background:#fff;border:1px solid var(--line);border-radius:24px;min-height:520px;padding:44px;box-shadow:var(--shadow);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.prompt-kana{font-size:clamp(72px,12vw,140px);line-height:1;margin:5px 0 24px;font-family:"Hiragino Sans","Yu Gothic",sans-serif}.prompt-romaji{font-size:54px;font-weight:900;margin:14px 0 28px}.question-note{color:var(--muted);font-weight:700}.choices{display:grid;grid-template-columns:repeat(2,minmax(180px,280px));gap:12px}.choice{border:2px solid var(--line);background:#fff;border-radius:14px;padding:16px 22px;font-size:22px;font-weight:800;cursor:pointer;min-height:64px}.choice:hover{border-color:#a9bed8}.choice.correct{border-color:var(--ok);background:#f0fbf7;color:#17674e}.choice.wrong{border-color:var(--bad);background:#fff5f5;color:#9c3939}.feedback{margin-top:22px;min-height:52px}.feedback strong{display:block;font-size:18px}.feedback span{color:var(--muted)}.next-btn{margin-top:18px}.pair-board{display:grid;grid-template-columns:repeat(4,120px);gap:10px;justify-content:center}.pair-tile{height:76px;border:2px solid var(--line);border-radius:13px;background:#fff;font-size:24px;font-weight:800;cursor:pointer}.pair-tile.selected{border-color:var(--accent);background:#eff6ff}.pair-tile.matched{opacity:.28;pointer-events:none}.modal{position:fixed;inset:0;background:rgba(16,27,42,.55);display:none;align-items:center;justify-content:center;padding:22px;z-index:60}.modal.open{display:flex}.modal-card{background:#fff;border-radius:22px;padding:30px;max-width:580px;width:100%;position:relative;box-shadow:0 30px 90px rgba(0,0,0,.22)}.modal-close{position:absolute;right:16px;top:14px;border:0;background:transparent;font-size:28px;cursor:pointer}.modal-mascot{width:90px;float:right;margin:0 20px 0 15px}.modal-card h2{margin-top:0}.modal-card>p{color:var(--muted);line-height:1.55}.modal-card label:not(.file-btn){display:flex;flex-direction:column;gap:7px;font-weight:800;margin:20px 0}.modal-card input[type=text],.modal-card input:not([type]){border:1px solid var(--line);border-radius:11px;padding:12px;font:inherit}.modal-actions{display:flex;gap:9px;flex-wrap:wrap}.modal-actions.compact{margin-top:10px}.portable-box{background:var(--soft);border-radius:14px;padding:15px;margin-top:20px}.portable-box h3{margin:0 0 5px}.portable-box p{font-size:13px;color:var(--muted);line-height:1.45}.file-btn{display:inline-block}.file-btn input{display:none}.storage-note{font-size:12px!important;margin-bottom:0}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%,20px);opacity:0;background:#1f2a3a;color:#fff;padding:11px 16px;border-radius:10px;font-size:13px;z-index:100;transition:.2s}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:850px){.summary-grid{grid-template-columns:repeat(2,1fr)}.lesson-path{grid-template-columns:1fr 1fr}.tools-grid{grid-template-columns:1fr 1fr}.hero img{width:120px}.toolbar-card{flex-direction:column}.segmented{width:100%}.practice-top{grid-template-columns:1fr}.practice-title{text-align:left}.session-progress{text-align:left}.choices{grid-template-columns:1fr;width:100%}.choice{width:100%}.pair-board{grid-template-columns:repeat(3,1fr);width:100%}}
@media(max-width:560px){.topbar{padding:0 14px}.profile-pill{display:none}.app-shell{padding:20px 12px 50px}.hero{padding:26px 22px}.hero img{display:none}.summary-grid,.lesson-path,.tools-grid{grid-template-columns:1fr}.segmented{flex-direction:column}.practice-card{padding:26px 16px;min-height:480px}.pair-board{grid-template-columns:repeat(2,1fr)}}

.learn-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(105px,1fr));gap:11px;width:min(780px,100%);margin:20px auto}.learn-kana{border:1px solid var(--line);border-radius:14px;background:var(--soft);padding:14px 8px}.learn-kana b{display:block;font-size:34px}.learn-kana span{display:block;color:var(--muted);font-weight:800;margin-top:3px}.learn-kana i{display:block;height:5px;border-radius:8px;background:#dfe6ef;margin-top:9px;overflow:hidden}.learn-kana i:after{content:"";display:block;height:100%;width:var(--m,0%);background:var(--ok)}.lesson-actions{display:flex;gap:9px;flex-wrap:wrap;justify-content:center;margin-top:22px}

/* v35 · profili persistenti */
.saved-profiles-box{margin:18px 0;padding:15px;border:1px solid var(--line);border-radius:14px;background:var(--soft,#f7f7f7);clear:both}.saved-profiles-box h3{margin:0 0 4px;font-size:16px}.saved-profiles-box p{margin:0 0 10px;color:var(--muted);font-size:13px;line-height:1.45}.saved-profiles-list{display:flex;gap:8px;flex-wrap:wrap}.saved-profile-btn{border:1px solid var(--line);background:#fff;border-radius:11px;padding:9px 11px;cursor:pointer;display:grid;text-align:left;gap:2px;min-width:120px;color:var(--ink)}.saved-profile-btn:hover{border-color:var(--accent,#777)}.saved-profile-btn strong{font-size:14px}.saved-profile-btn small{color:var(--muted);font-size:11px}.saved-profiles-empty{color:var(--muted);font-size:12px}.profile-persistence-note{font-size:12px;color:var(--muted);margin:10px 0 0;line-height:1.45}