@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800;900&family=Noto+Sans+JP:wght@400;600;700&display=swap');
.hk-app{--ink:#3d3854;--muted:#858097;--pink:#f6a9c8;--pink2:#fff0f6;--blue:#83b9ed;--cream:#fffaf2;--green:#8ccfb0;font-family:Nunito,"Noto Sans JP",sans-serif;color:var(--ink);background:#fffafc;max-width:760px;margin:0 auto;min-height:85vh;border-radius:24px;overflow:hidden;box-shadow:0 12px 40px #59426b12}
.hk-app *{box-sizing:border-box}.hk-top{height:70px;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid #f6e9f0}.hk-brand{display:flex;align-items:center;gap:10px}.hk-brand-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:15px;background:#ffdfec;color:#dc6498;font:700 25px "Noto Sans JP"}.hk-brand b,.hk-brand small{display:block}.hk-brand b{font-size:16px}.hk-brand small{font-size:11px;color:var(--muted)}.hk-sound{border:0;background:#f1f4ff;border-radius:14px;width:42px;height:42px;font-size:19px;cursor:pointer}.hk-main{padding:22px 20px 30px}.hk-view{animation:hkfade .25s ease}@keyframes hkfade{from{opacity:.3;transform:translateY(5px)}to{opacity:1;transform:none}}.hk-hidden{display:none!important}.hk-hero{background:linear-gradient(130deg,#fff0f6,#edf6ff);border-radius:24px;padding:20px;display:flex;align-items:center;gap:13px;min-height:225px}.hk-teacher{font-size:76px;flex:0 0 90px;text-align:center;filter:drop-shadow(0 7px 5px #d7a4bd40)}.hk-eyebrow{font-size:11px;font-weight:900;letter-spacing:.8px;color:#d16d9c;margin:0 0 7px}.hk-hero h1{font-size:24px;line-height:1.28;margin:0 0 8px;font-weight:900}.hk-hero h1 em{font-style:normal;color:#e17ba7}.hk-hero p:not(.hk-eyebrow){font-size:12px;line-height:1.6;color:#79758a;margin:0 0 13px}.hk-primary,.hk-secondary{border:0;border-radius:14px;padding:12px 17px;font:800 13px Nunito,sans-serif;cursor:pointer;min-height:44px}.hk-primary{background:#e985ae;color:#fff;box-shadow:0 5px 12px #e985ae40}.hk-primary span{margin-left:8px}.hk-secondary{background:#f5eff4;color:#71677d}.hk-progress{margin:20px 0 23px;padding:14px 16px;background:#fff;border:1px solid #f5e9ef;border-radius:17px}.hk-progress>div:first-child{display:flex;justify-content:space-between;gap:8px;font-size:12px}.hk-progress span{color:var(--muted);font-size:11px}.hk-track{height:8px;background:#f4edf2;border-radius:9px;margin-top:11px;overflow:hidden}.hk-track i{display:block;width:0;height:100%;background:linear-gradient(90deg,#efa0bf,#91c8ef);border-radius:9px;transition:width .3s}.hk-app h2{font-size:17px;margin:0 0 12px}.hk-app h2 span{font-size:14px}.hk-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.hk-group{border:1px solid #f2e5ee;border-radius:16px;background:#fff;padding:13px;text-align:left;cursor:pointer;color:var(--ink);box-shadow:0 3px 10px #48354b08}.hk-group:active,.hk-choice:active{transform:scale(.98)}.hk-group-title,.hk-group-kana,.hk-group small{display:block}.hk-group-title{font-size:11px;color:#9a7992;font-weight:800}.hk-group-kana{font:700 19px "Noto Sans JP";letter-spacing:1px;margin:8px 0}.hk-group small{font-size:10px;color:var(--muted)}.hk-back{border:0;background:none;padding:5px 0 14px;color:#82758d;font:700 12px Nunito;cursor:pointer}.hk-lesson-head{display:flex;justify-content:space-between;color:#9b8295;font-size:12px;font-weight:800;margin-bottom:10px}.hk-card{background:linear-gradient(150deg,#fff4f8,#f2f8ff);border:1px solid #f4e8ef;border-radius:22px;padding:20px 15px;text-align:center;position:relative}.hk-teacher-small{font-size:34px}.hk-speech{font-size:14px;font-weight:800;margin:5px 0;color:#5c5472}.hk-kana{font:700 118px/1.3 "Noto Sans JP",sans-serif;color:#4d7fbe;margin:4px 0}.hk-romaji{font-size:19px;font-weight:900;color:#db7da5;margin-bottom:13px}.hk-audio-row{display:flex;justify-content:center;gap:8px;flex-wrap:wrap}.hk-audio,.hk-listen{border:1px solid #e6dce9;border-radius:20px;padding:9px 12px;background:#fff;color:#665d78;font:800 11px Nunito;cursor:pointer}.hk-instruction{display:flex;flex-direction:column;gap:3px;margin:17px 2px 10px;font-size:13px}.hk-instruction span{font-size:11px;color:var(--muted)}.hk-canvas-wrap{position:relative;max-width:340px;width:100%;aspect-ratio:1;margin:0 auto;background:#fff;border:2px dashed #f0d6e4;border-radius:20px;overflow:hidden;touch-action:none}.hk-canvas-wrap canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none}.hk-watermark{position:absolute;inset:0;display:grid;place-items:center;pointer-events:none;color:#e9a9c9;font:400 clamp(130px,32vw,220px)/1 "Noto Sans JP",sans-serif;z-index:0;line-height:1;transform:translateY(-2%)}.hk-canvas{z-index:1;background:transparent}.hk-tts-status{min-height:16px;margin:8px 0 0;text-align:center;color:#857097;font-size:11px;line-height:1.4}.hk-actions{display:flex;gap:10px;justify-content:center;margin-top:14px}.hk-actions button{flex:1;max-width:200px}.hk-feedback{min-height:22px;text-align:center;color:#4eaa83;font-size:12px;font-weight:800;margin:10px 0 0}.hk-choices{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:22px}.hk-choice{background:#fff;border:2px solid #f3dce8;border-radius:18px;min-height:88px;color:#4d7fbe;font:700 35px "Noto Sans JP";cursor:pointer}.hk-listen{margin-top:12px;padding:12px 20px}.hk-finish{text-align:center;font-size:70px;margin:25px 0 10px}.hk-view#hk-done{text-align:center;padding:15px}.hk-view#hk-done h1{font-size:25px}.hk-view#hk-done p{font-size:13px;color:var(--muted)}.hk-stars{font-size:24px;margin:18px}.hk-view#hk-done button{display:block;margin:10px auto;width:min(100%,260px)}.hk-footer{text-align:center;background:#fff2f7;padding:15px;font-size:11px;color:#a47d96}@media(min-width:600px){.hk-main{padding:28px 34px 36px}.hk-groups{grid-template-columns:repeat(3,minmax(0,1fr))}.hk-hero{padding:26px 35px}.hk-hero h1{font-size:29px}}@media(prefers-reduced-motion:reduce){.hk-app *{animation:none!important;transition:none!important}}

/* Handwriting template stays visible but uses a high-contrast, centered guide. */
.hk-canvas-wrap{isolation:isolate;background:#fff;display:block}.hk-watermark{z-index:0;color:rgba(115,151,194,.32);font-weight:500;inset:0;display:flex;align-items:center;justify-content:center;text-align:center;transform:none;line-height:1;font-size:clamp(150px,34vw,220px);font-family:'Noto Sans JP',sans-serif}.hk-canvas{z-index:1;pointer-events:auto}.hk-feedback{line-height:1.6}