:root{--navy:#082b58;--teal:#007e89;--paper:#f4f8fa;--muted:#566779;--line:#dce5eb;--red:#b63141;--green:#126343}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--navy);font-family:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;line-height:1.6}.shell{max-width:1120px;margin:auto;padding:0 28px}button,select{font:inherit}button{cursor:pointer;min-height:48px;border:0;border-radius:14px;padding:12px 20px;font-weight:700;color:var(--navy);touch-action:manipulation}button:disabled{cursor:default;opacity:.55}button:focus-visible,select:focus-visible{outline:3px solid #f0a800;outline-offset:3px}button:hover:not(:disabled){filter:brightness(.96)}.topbar{display:flex;justify-content:space-between;align-items:center;min-height:100px}.topbar img{width:210px;height:auto}.level,.eyebrow{font-size:11px;font-weight:800;letter-spacing:.13em}.level{border:1px solid var(--line);border-radius:30px;padding:7px 13px}.hero{display:grid;grid-template-columns:1.1fr 1fr;border-radius:30px;overflow:hidden;background:#e4f3f3;min-height:400px;position:relative}.hero-copy{padding:42px 0 36px 38px;z-index:1}.hero .eyebrow{color:var(--teal)}h1{font-size:clamp(28px,3.8vw,43px);line-height:1.18;letter-spacing:-.045em;margin:18px 0}h1 em{font-style:normal;color:var(--teal)}.hero p{font-weight:650}.hero .intro{font-size:15px;font-weight:400;max-width:355px;color:#365967}.primary{background:var(--navy);color:white}.primary span{margin-left:20px}.secondary{background:#e7eff4}.text-button{background:transparent;color:var(--teal)}.hero .text-button{display:block;font-size:13px;margin-top:4px;padding-left:0}.hero-art{position:relative;align-self:stretch;min-width:0;background:radial-gradient(ellipse at 60% 65%,#fff6d0 0%,transparent 68%)}.hero-art img{position:absolute;object-fit:contain;object-position:bottom;bottom:-30px;height:350px;max-width:65%;filter:drop-shadow(0 8px 10px #14345015)}.girl{left:0;z-index:1}.boy{right:0}.bubble{position:absolute;right:45px;top:40px;background:white;transform:rotate(3deg);padding:8px 16px;border-radius:15px;font-weight:700;z-index:2}.summary{display:flex;justify-content:space-around;gap:10px;padding:21px 0;font-size:12px;color:var(--muted)}.summary b{font-size:21px;color:var(--navy);margin-right:8px}.main-nav{position:sticky;top:0;z-index:10;display:grid;grid-template-columns:repeat(4,1fr);padding:6px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 4px 18px #082b5808;gap:4px}.main-nav button{background:transparent;color:var(--muted)}.main-nav button[aria-current=page]{background:var(--navy);color:white}.panel{scroll-margin-top:90px;background:white;border:1px solid var(--line);border-radius:24px;padding:30px;margin:22px 0;min-width:0}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}h2{font-size:27px;line-height:1.25;margin:8px 0 18px;letter-spacing:-.035em}.pill{font-size:12px;background:#e8f5f2;padding:6px 12px;border-radius:30px;white-space:nowrap;color:#146251}.muted{color:var(--muted);font-size:14px}.small{font-size:12px}label{display:block;font-size:13px;font-weight:700;margin:16px 0 6px}select{width:100%;min-height:48px;background:white;border:1px solid #b9cbd8;border-radius:12px;color:var(--navy);padding:10px;font-size:16px;margin-bottom:8px}.word-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:20px}.word-card{background:#f8fafb;border:1px solid var(--line);border-radius:16px;text-align:left;padding:20px;min-width:0;position:relative}.word-card span{display:block}.jp{font-size:23px;overflow-wrap:anywhere;line-height:1.5;font-weight:750}.romaji{font-size:13px;color:var(--teal);margin:5px 0}.meaning{font-size:13px;color:var(--muted);font-weight:500}.listen{font-size:11px;color:var(--teal);margin-top:15px}.flashcard{text-align:center;background:#f2f8f8;border-radius:20px;padding:25px 16px}.flashcard h3{font-size:clamp(26px,6vw,46px);overflow-wrap:anywhere;margin:24px 0 8px}.flashcard #practiceRomaji{color:var(--teal)}#practiceMeaning{font-size:20px;font-weight:700;margin-bottom:18px}.round{background:#edf6f6;color:var(--teal);font-size:13px}.actions{display:flex;justify-content:space-between;gap:12px;margin-top:22px}.quiz-meta{display:flex;justify-content:space-between;gap:8px;font-size:14px}progress{display:block;width:100%;height:8px;border:0;border-radius:10px;overflow:hidden;margin:16px 0 24px;accent-color:var(--teal)}progress::-webkit-progress-bar{background:#e9eef2}progress::-webkit-progress-value{background:var(--teal)}.prompt{text-align:center;font-size:13px;color:var(--muted)}#question{text-align:center;font-size:clamp(28px,6vw,48px);line-height:1.5;overflow-wrap:anywhere;margin:18px 0}#quizSpeak{display:block;margin:0 auto 20px}.answers{display:grid;grid-template-columns:1fr 1fr;gap:12px}.answer{border:1px solid #cddce4;background:#f7fafb;text-align:left;font-size:15px;min-height:62px;display:flex;gap:10px;align-items:center}.answer .letter{background:white;border:1px solid var(--line);border-radius:8px;min-width:28px;text-align:center;font-size:12px}.answer:disabled{opacity:1}.answer.correct{background:#e2f5e8;color:var(--green);border:2px solid var(--green)}.answer.wrong{background:#fcebf0;color:var(--red);border:2px solid var(--red)}.feedback{min-height:52px;font-size:14px;font-weight:650}.feedback.ok{color:var(--green)}.feedback.bad{color:var(--red)}#result{text-align:center}.result-score{font-size:64px;font-weight:850;letter-spacing:-.04em}.result-score small{font-size:23px}.result-art{height:160px;width:160px;object-fit:contain}#result ul{text-align:left;padding-left:23px}.review-item{border-top:1px solid var(--line);padding:13px 0;font-size:14px}#audio .primary{margin-top:18px}.audio-status{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);z-index:30;background:var(--navy);color:white;border-radius:12px;padding:12px 18px;max-width:90%;width:420px;font-size:13px}footer{text-align:center;color:var(--muted);font-size:13px;padding:18px 0 32px}footer small{font-size:11px}[hidden]{display:none!important}@media(max-width:700px){.shell{padding:0 14px}.topbar{min-height:80px}.topbar img{width:165px}.level{font-size:9px;letter-spacing:.02em;padding:5px 7px}.hero{grid-template-columns:1fr;min-height:0;border-radius:24px}.hero-copy{padding:27px 24px 0}.hero h1{font-size:34px}.hero-art{height:220px}.hero-art img{height:245px;bottom:-22px;max-width:52%}.girl{left:15%}.boy{right:9%}.bubble{top:0;right:15px;font-size:12px}.summary{font-size:10px;padding:16px 0;gap:5px}.summary b{font-size:17px;display:block;margin:0}.summary span{text-align:center}.main-nav{border-radius:14px;padding:5px;gap:2px}.main-nav button{font-size:12px;padding:10px 4px}.panel{padding:20px 16px;margin-top:16px;border-radius:20px}h2{font-size:24px}.section-heading{align-items:flex-start}.section-heading .pill{font-size:10px;padding:5px 8px}.word-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.word-card{padding:13px 11px}.jp{font-size:20px}.romaji{font-size:12px;overflow-wrap:anywhere}.meaning{font-size:12px}.answers{grid-template-columns:1fr;gap:9px}.answer{min-height:54px;padding:11px 14px}.quiz-meta{font-size:13px}.actions button{padding:12px 15px}.hero-copy .primary{width:100%}.hero .text-button{width:100%;padding-left:20px}}@media(prefers-reduced-motion:no-preference){button{transition:background .15s,transform .15s}}@media(min-width:701px){#quiz,#practice,#audio{max-width:800px;margin-left:auto;margin-right:auto}}