:root{--bg:#f3f7ff;--ink:#243044;--muted:#5c6b84;--line:#d5e3f6;--card:#ffffff;--accent:#e25b45;--teal:#148a78;--indigo:#3d5ce0;--n2:#148a78;--n1:#d4532b;--chip:#e7f0ff}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:Noto Sans,Noto Sans JP,sans-serif;background:#c9daf2;color:var(--ink);line-height:1.4;-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button,input{font:inherit}.item,.kanji-card,.level-card,.mark,.tabbar a,button{touch-action:manipulation}.app{width:min(480px,100%);min-height:100dvh;background:radial-gradient(120px 80px at 88% 18px,#ffe1c4 0,transparent 70%),radial-gradient(160px 90px at 8% 40px,#d7f3ea 0,transparent 72%),var(--bg);position:relative;padding-top:calc(86px + env(safe-area-inset-top))}.app,.wrap{margin:0 auto}.wrap{width:min(480px,calc(100% - 20px))}header.site{position:fixed;top:0;left:50%;z-index:20;width:min(480px,100%);transform:translateX(-50%);border-bottom:1px solid var(--line);background:rgba(243,247,255,.94);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding-top:env(safe-area-inset-top)}.exam-clock{display:grid;grid-template-columns:1fr 1fr;grid-gap:8px;gap:8px;width:min(480px,calc(100% - 20px));margin:0 auto;padding:6px 0 2px;color:inherit}.exam-clock span{min-width:0}.exam-clock small{display:block;color:var(--muted);font-size:10px;font-weight:600;line-height:1.2}.exam-clock strong{display:block;font-size:14px;line-height:1.2;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;color:var(--indigo)}.exam-clock span:last-child strong{color:var(--accent)}.topbar{justify-content:space-between;gap:12px;min-height:46px}.brand,.topbar{display:flex;align-items:center}.brand{gap:8px;font-weight:700;letter-spacing:.02em;font-size:16px;color:var(--indigo)}.mark-art{width:36px;height:36px;flex:0 0 auto}.brand 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button{border:0;background:var(--teal);color:white;border-radius:14px;padding:14px 16px;cursor:pointer;min-height:48px}.chips{display:flex;gap:8px;margin:0 -14px 14px;padding:0 14px 2px;overflow-x:auto;scrollbar-width:none}.chips::-webkit-scrollbar{display:none}.chips a,button.chip{flex:0 0 auto;background:var(--chip);border-radius:999px;padding:8px 12px;font-size:14px}.chips a.on{background:var(--indigo);color:white}.list{display:grid;grid-gap:6px;gap:6px}.item{display:block;background:var(--card);border:1px solid var(--line);border-left:4px solid #7eb6ff;border-radius:12px;padding:8px 12px;min-height:0}.item .top{display:flex;justify-content:space-between;gap:8px;align-items:baseline}.pattern{font-size:17px;font-weight:650;line-height:1.3}.reading{color:var(--muted);font-size:12px}.meaning{margin:2px 0 0;font-size:14px}.tag{font-size:12px;color:var(--indigo);background:#e7f0ff;border-radius:999px;padding:2px 8px;white-space:nowrap}a.back{display:inline-flex;align-items:center;min-height:36px;margin:0 0 10px;color:var(--accent);font-size:14px;font-weight:700}article.detail{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px}.kicker{color:var(--accent);font-size:13px;font-weight:700;letter-spacing:.04em}.detail h1{font-size:36px}.detail .reading{font-size:15px;margin-bottom:12px}.meaning-lg{font-size:18px;margin:0 0 20px}section.block{margin-top:14px}section.block h2{font-size:14px;margin:0;color:var(--muted);font-weight:700}.section-head{display:flex;align-items:center;justify-content:space-between;margin:0 0 8px}.section-head h2{color:var(--teal)}.section-head a{color:var(--accent);font-size:14px;font-weight:600}.day-label{margin:6px 0 4px;color:var(--muted);font-size:12px;font-weight:700}pre.form{white-space:pre-wrap;font-family:Noto Sans JP,Noto Sans,sans-serif;background:#f3f8ff;border-radius:12px;padding:12px 14px;margin:0}.example{border-top:1px solid var(--line);padding:12px 0}.example .jp{font-size:18px}.kanji-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:10px;gap:10px}.kanji-card{background:linear-gradient(180deg,#fff,#f4fbf8);border:1px solid #cfe6df;border-radius:14px;padding:12px;min-height:132px}.kanji-card .ch{font-size:40px;line-height:1.1;font-weight:650;color:var(--teal)}.entry{display:flex;gap:8px;align-items:stretch}[data-row]{position:relative}[data-row].learned-out{animation:learned-fade 1.1s ease 1.1s forwards;pointer-events:none}.learned-badge{position:absolute;inset:0;z-index:3;display:grid;place-items:center;pointer-events:none}.learned-check{width:58px;height:58px;border-radius:50%;background:var(--teal);box-shadow:0 8px 22px rgba(20,138,120,.35);animation:learned-pop .85s cubic-bezier(.2,1.45,.4,1) both}.learned-check:after{content:"";display:block;width:16px;height:9px;margin:22px auto 0;border-left:3.5px solid #fff;border-bottom:3.5px solid #fff;transform:rotate(-45deg)}@keyframes 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