:root{
  --purple:#6d42d8;--purple2:#8d67ee;--purple3:#efe8ff;--ink:#2e2740;--muted:#756b86;
  --bg:#f7f4fb;--card:#fff;--green:#24a15a;--blue:#2363a9;--orange:#f39a31;--red:#df5261;
  --line:#e8e1f0;--shadow:0 14px 32px rgba(52,35,88,.10);--radius:22px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;min-height:100%;background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI",Roboto,Arial,sans-serif;color:var(--ink)}
body{overscroll-behavior-y:none}
button,input,textarea,select{font:inherit}
button{border:0;cursor:pointer}
#app{max-width:620px;min-height:100svh;margin:0 auto;background:var(--bg);position:relative;padding-bottom:calc(88px + env(safe-area-inset-bottom))}
.screen{min-height:100svh;padding-bottom:28px;animation:fade .18s ease}
@keyframes fade{from{opacity:.65;transform:translateY(3px)}to{opacity:1;transform:none}}
.hero{padding:calc(22px + env(safe-area-inset-top)) 20px 24px;background:linear-gradient(145deg,#6d42d8,#8d67ee 65%,#aa8afd);border-radius:0 0 30px 30px;color:#fff;box-shadow:var(--shadow)}
.hero-top{display:flex;align-items:center;gap:14px}.hero-copy{flex:1}.hello{font-size:25px;font-weight:950;margin:0}.subtitle{font-size:13px;line-height:1.45;color:#efe9ff;margin:5px 0 0}.mascot{font-size:48px;filter:drop-shadow(0 5px 10px rgba(0,0,0,.12))}
.stats{display:flex;gap:7px;flex-wrap:wrap;margin-top:17px}.pill{background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.24);padding:7px 11px;border-radius:999px;font-size:12px;font-weight:800;backdrop-filter:blur(8px)}
.level-card{margin-top:15px;background:rgba(29,16,63,.20);padding:13px;border-radius:17px}.level-head{display:flex;justify-content:space-between;font-size:11px;font-weight:900}.progress{height:8px;border-radius:99px;background:rgba(255,255,255,.24);overflow:hidden;margin-top:8px}.progress>i{display:block;height:100%;background:#fff;border-radius:99px}
.content{padding:16px 16px 30px}.section-title{font-size:17px;font-weight:950;color:#44336a;margin:20px 2px 10px}.section-sub{font-size:12px;color:var(--muted);margin:-4px 2px 12px;line-height:1.5}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 24px rgba(52,35,88,.055);padding:16px;margin-top:12px}.card.flat{box-shadow:none}.card.tint{background:#f1ebff;border-color:#e1d5ff}.card.blue{background:#eaf4ff;border-color:#cee1f6}.card.green{background:#eaf8ef;border-color:#cdebd7}.card.warn{background:#fff6df;border-color:#f3ddb0}
.school-cta{display:flex;align-items:center;gap:12px;background:linear-gradient(135deg,#fff,#f0eaff);border:1px solid #dacdf7;border-radius:24px;padding:17px;box-shadow:var(--shadow);margin-top:14px}.school-icon{width:48px;height:48px;border-radius:16px;background:#6d42d8;color:#fff;display:grid;place-items:center;font-size:24px;flex:0 0 auto}.kicker{font-size:9px;font-weight:950;color:#7d55db;letter-spacing:.08em}.school-cta h3{font-size:16px;margin:3px 0 4px;color:#46336b}.school-cta p{font-size:11px;line-height:1.45;color:#776a8d;margin:0}.arrow{margin-left:auto;color:#7553c3;font-size:28px}
.task{display:flex;align-items:center;gap:11px;padding:11px 0;border-bottom:1px solid #f0ecf5}.task:last-of-type{border-bottom:0}.task-ico{width:38px;height:38px;border-radius:13px;background:#f1ecff;display:grid;place-items:center}.task b{font-size:13px}.task small{display:block;color:#887c98;margin-top:2px}.check{margin-left:auto;font-weight:950;color:#b8afc5}.check.done{color:var(--green)}
.btn{width:100%;border-radius:17px;padding:14px 16px;font-weight:950;letter-spacing:.02em;transition:.12s transform,.12s opacity}.btn:active{transform:scale(.985)}.btn.primary{background:var(--purple);color:#fff;box-shadow:0 8px 18px rgba(109,66,216,.24)}.btn.secondary{background:#fff;color:#5a4198;border:1px solid #d9cdf0}.btn.green{background:#16934d;color:#fff}.btn.blue{background:#215fa6;color:#fff}.btn.red{background:#d95061;color:#fff}.btn.small{width:auto;padding:9px 12px;border-radius:13px;font-size:11px}.btn.ghost{background:transparent;color:#66527e;border:1px solid #ded5e8}.btn:disabled{opacity:.45;cursor:default}
.header{position:sticky;top:0;z-index:20;padding:calc(9px + env(safe-area-inset-top)) 12px 9px;background:rgba(247,244,251,.92);backdrop-filter:blur(14px);border-bottom:1px solid rgba(221,213,232,.8);display:flex;align-items:center;gap:8px}.back{width:38px;height:38px;border-radius:13px;background:#fff;border:1px solid var(--line);font-size:23px;color:#594174}.header-title{font-weight:950;color:#44336a;flex:1}.header-badge{font-size:10px;background:#ede5ff;color:#6d42d8;border-radius:999px;padding:6px 9px;font-weight:900}
.bottom-nav{position:fixed;left:50%;bottom:0;transform:translateX(-50%);z-index:30;width:min(620px,100%);height:calc(67px + env(safe-area-inset-bottom));padding:7px 8px env(safe-area-inset-bottom);background:rgba(255,255,255,.96);border-top:1px solid #e8e2ef;display:flex;justify-content:space-around;box-shadow:0 -8px 24px rgba(43,31,66,.06);backdrop-filter:blur(16px)}.nav-item{background:transparent;color:#8b8298;min-width:60px;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:18px;padding:4px 5px}.nav-item span{font-size:9px;font-weight:850}.nav-item.active{color:#6d42d8}
.subjects-scroll{display:flex;gap:8px;overflow:auto;padding:1px 1px 7px;scrollbar-width:none}.subjects-scroll::-webkit-scrollbar{display:none}.chip{white-space:nowrap;background:#fff;border:2px solid #e4ddec;color:#56486b;border-radius:999px;padding:9px 12px;font-size:11px;font-weight:850}.chip.active{background:#efe8ff;border-color:#6d42d8;color:#5a39aa}
.mode-row{display:grid;grid-template-columns:1fr 1fr;gap:9px}.mode{background:#fff;border:2px solid #e4ddec;border-radius:18px;padding:13px;text-align:center}.mode.active{background:#efe8ff;border-color:#6d42d8}.mode-emoji{font-size:27px}.mode b{display:block;color:#493271;margin-top:4px}.mode small{color:#85769b;font-size:10px}
.upload-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.upload{min-height:108px;border-radius:18px;background:#fff;border:1px solid #e5deed;padding:10px;text-align:center;color:#49396a}.upload i{font-style:normal;font-size:29px;display:block}.upload b{font-size:12px;display:block;margin-top:4px}.upload small{display:block;font-size:9px;color:#8d819b;margin-top:3px;line-height:1.35}.attachment{display:flex;align-items:center;gap:10px;background:#eaf8ef;border:1px solid #cdebd7;border-radius:17px;padding:12px;margin-top:11px}.attachment .file-ico{font-size:25px}.attachment .file-name{font-size:11px;font-weight:850;color:#2d633c;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment .file-meta{font-size:9px;color:#608069}.attachment .remove{margin-left:auto;background:transparent;color:#aa4a53;font-weight:950;font-size:17px}
.divider{display:flex;align-items:center;gap:9px;color:#91869f;font-size:9px;font-weight:900;margin:16px 0}.divider:before,.divider:after{content:"";height:1px;background:#ded7e7;flex:1}.material{width:100%;min-height:160px;border:1px solid #ded6e9;background:#fff;border-radius:19px;padding:14px;resize:vertical;outline:0;color:#322a42;font-size:14px;line-height:1.5}.material:focus{border-color:#a98de8;box-shadow:0 0 0 3px #eee7ff}
.info{font-size:11px;line-height:1.55;color:#665889}.info strong{color:#52399d}.privacy{font-size:10px;color:#867b91;text-align:center;line-height:1.45;margin-top:11px}
.loading{text-align:center;padding:42px 24px}.spinner{width:48px;height:48px;border:5px solid #e5dcf6;border-top-color:#6d42d8;border-radius:50%;margin:0 auto;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading h2{font-size:20px;color:#44336a}.loading p{font-size:12px;line-height:1.5;color:#766a88}.loading-progress{font-size:11px;color:#6d42d8;font-weight:850;margin-top:14px}
.study-hero{background:linear-gradient(145deg,#6d42d8,#8d67ee);color:#fff;border-radius:25px;padding:20px;text-align:center;box-shadow:var(--shadow)}.study-hero .emoji{font-size:38px}.study-hero h2{font-size:21px;margin:5px 0}.study-hero p{font-size:11px;color:#ece6ff;margin:0}.study-section{background:#fff;border:1px solid var(--line);border-radius:20px;padding:16px;margin-top:12px}.study-section h3{font-size:16px;color:#49366e;margin:0 0 9px}.study-section p,.study-section li{font-size:13px;line-height:1.6;color:#544a63}.keypoint{display:flex;gap:9px;align-items:flex-start;margin:8px 0}.keynum{min-width:27px;height:27px;border-radius:50%;background:#6d42d8;color:#fff;display:grid;place-items:center;font-size:11px;font-weight:950}.keywords{display:flex;gap:7px;flex-wrap:wrap}.keyword{background:#efe8ff;color:#5b3bad;border-radius:999px;padding:7px 10px;font-size:10px;font-weight:850}
.voice-card{background:#eaf4ff;border:1px solid #c8dff6;border-radius:20px;padding:15px;margin-top:12px}.voice-card h3{color:#214f86;margin:0 0 5px}.voice-card p{font-size:11px;color:#4f6f91;line-height:1.45}.voice-actions{display:flex;gap:7px;flex-wrap:wrap;margin-top:10px}.voice-current{background:#fff;border:1px solid #c8dff6;border-radius:14px;padding:10px;margin-top:10px;font-size:11px;color:#315f8e;font-weight:800}.voice-pills{display:flex;gap:6px;overflow:auto;padding:7px 0 2px;scrollbar-width:none}.voice-pills::-webkit-scrollbar{display:none}.voice-pill{min-width:96px;background:#fff;border:1px solid #c8dff6;color:#4d7094;border-radius:13px;padding:9px 8px;font-size:9px;font-weight:850;text-align:center}.voice-pill.active{background:#215fa6;color:#fff;border-color:#215fa6}.range-row{display:grid;grid-template-columns:70px 1fr 42px;gap:8px;align-items:center;margin-top:8px;font-size:10px;color:#557393}.range-row input{width:100%}
.game-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}.game-card{border-radius:19px;padding:15px;min-height:128px;color:#fff;text-align:left;box-shadow:0 9px 18px rgba(59,39,96,.12);position:relative;overflow:hidden}.game-card:before{content:"";position:absolute;width:70px;height:70px;border-radius:50%;background:rgba(255,255,255,.13);right:-20px;top:-20px}.game-card .ico{font-size:27px}.game-card b{display:block;font-size:14px;margin-top:8px}.game-card small{display:block;font-size:10px;line-height:1.35;margin-top:4px;color:rgba(255,255,255,.88)}.g1{background:#6d42d8}.g2{background:#1c9b61}.g3{background:#2382b7}.g4{background:#db8a26}.g5{background:#d45166}.g6{background:#7356a8}
.quiz-top{padding:calc(10px + env(safe-area-inset-top)) 14px 9px;display:flex;align-items:center;gap:9px;background:#fff;border-bottom:1px solid #ede7f2}.quiz-subject{flex:1;background:#f2edfb;border-radius:999px;padding:7px 10px;font-size:10px;font-weight:900;color:#5a4198;text-align:center}.quiz-progress{height:6px;background:#e8e1ef}.quiz-progress i{display:block;height:100%;background:#6d42d8;transition:width .25s}.quiz-content{padding:18px 16px}.question-label{font-size:10px;color:#8b8098;font-weight:900;text-transform:uppercase;letter-spacing:.06em}.question{font-size:19px;line-height:1.38;color:#342a46;font-weight:900;margin:8px 0 15px}.options{display:grid;gap:9px}.option{background:#fff;border:2px solid #e3dce9;border-radius:18px;padding:13px 14px;text-align:left;color:#453951;font-weight:750;display:flex;gap:9px;align-items:center}.option .letter{width:28px;height:28px;border-radius:10px;background:#f1ecf7;display:grid;place-items:center;font-size:10px;font-weight:950;color:#6a577d}.option.selected{border-color:#6d42d8;background:#f3efff}.option.correct{border-color:#1ca35b;background:#eaf8ef}.option.wrong{border-color:#da4b5d;background:#fff0f2}.feedback{border-radius:18px;padding:13px;margin-top:14px;font-size:12px;line-height:1.5}.feedback.ok{background:#eaf8ef;color:#2c6d43}.feedback.no{background:#fff0f2;color:#8c3e49}.timer{font-weight:950;color:#d45166;font-size:13px}
.tf-row{display:grid;grid-template-columns:1fr 1fr;gap:9px}.tf{padding:17px;border-radius:18px;font-weight:950;color:#fff}.tf.true{background:#1b9b61}.tf.false{background:#d45166}
.memory-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:13px}.memory-card{min-height:95px;border-radius:15px;background:#6d42d8;color:#fff;padding:8px;font-size:9px;font-weight:800;display:grid;place-items:center;text-align:center;transform-style:preserve-3d}.memory-card.hidden{color:transparent;background:linear-gradient(145deg,#7549dc,#9d78ef);position:relative}.memory-card.hidden:after{content:"?";color:#fff;font-size:25px;position:absolute}.memory-card.matched{background:#24a15a;opacity:.75}.memory-card.open{background:#fff;color:#49366e;border:2px solid #cdbcf0}
.flash-card{min-height:230px;border-radius:25px;background:linear-gradient(145deg,#6d42d8,#8d67ee);color:#fff;padding:26px;display:grid;place-items:center;text-align:center;box-shadow:var(--shadow);font-size:20px;font-weight:900;line-height:1.4}.flash-card.answer{background:linear-gradient(145deg,#2382b7,#3da8d7);font-size:15px}.flash-hint{text-align:center;font-size:10px;color:#897d97;margin-top:10px}
.result-hero{text-align:center;background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px}.result-emoji{font-size:48px}.score-big{font-size:36px;font-weight:950;color:#6d42d8}.score-sub{font-size:12px;color:#7c718c}.reward-row{display:flex;justify-content:center;gap:8px;margin-top:11px}.reward-chip{background:#fff5d7;color:#8c6817;border-radius:999px;padding:7px 10px;font-size:10px;font-weight:900}
.subject-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.subject-card{border-radius:20px;padding:16px;min-height:140px;color:#fff;position:relative;overflow:hidden}.subject-card .ico{font-size:30px}.subject-card b{display:block;font-size:15px;margin-top:7px}.subject-card small{font-size:10px;opacity:.9}.subject-card .mini-progress{height:6px;background:rgba(255,255,255,.3);border-radius:99px;margin-top:12px}.subject-card .mini-progress i{height:100%;background:#fff;display:block;border-radius:99px}
.history-item{display:flex;gap:10px;align-items:center;padding:12px 0;border-bottom:1px solid #eee9f3}.history-item:last-child{border-bottom:0}.history-icon{width:40px;height:40px;background:#f0eaff;border-radius:14px;display:grid;place-items:center}.history-main{flex:1;min-width:0}.history-title{font-size:12px;font-weight:900;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-meta{font-size:9px;color:#8a8096;margin-top:3px}
.setting-row{padding:13px 0;border-bottom:1px solid #eee9f2}.setting-row:last-child{border-bottom:0}.setting-label{font-size:12px;font-weight:900;color:#4c3a68}.setting-help{font-size:10px;color:#877b95;line-height:1.45;margin-top:4px}.text-input{width:100%;border:1px solid #ded6e9;background:#fff;border-radius:15px;padding:12px;margin-top:9px;outline:0;font-size:12px}.text-input:focus{border-color:#9f82e4;box-shadow:0 0 0 3px #efe8ff}.api-status{display:inline-flex;align-items:center;gap:5px;border-radius:999px;padding:6px 9px;font-size:9px;font-weight:900;margin-top:8px}.api-status.on{background:#e8f7ee;color:#2c7145}.api-status.off{background:#fff1e5;color:#995d2c}
.modal{position:fixed;inset:0;z-index:80;background:rgba(28,20,42,.5);display:flex;align-items:flex-end;justify-content:center}.sheet{width:min(620px,100%);max-height:82svh;background:#fff;border-radius:28px 28px 0 0;padding:18px 16px calc(18px + env(safe-area-inset-bottom));overflow:auto}.sheet-handle{width:42px;height:5px;background:#ddd4e7;border-radius:99px;margin:0 auto 14px}.sheet h2{font-size:18px;color:#49366e;margin:0 0 5px}.sheet p{font-size:11px;color:#7c708c;line-height:1.5}.voice-list{display:grid;gap:8px;margin-top:12px}.voice-option{display:flex;align-items:center;gap:10px;background:#f8f6fb;border:1px solid #e7e0ef;border-radius:15px;padding:11px;text-align:left}.voice-option.active{background:#eaf4ff;border-color:#8eb9e1}.voice-option .v-main{flex:1}.voice-option b{font-size:11px;color:#3f3a4a}.voice-option small{font-size:9px;color:#81778c}.preview{background:#215fa6;color:#fff;border-radius:11px;padding:8px;font-size:9px;font-weight:900}
.empty{text-align:center;padding:27px 12px;color:#8c8198}.empty .emoji{font-size:39px}.empty h3{color:#59476f;margin:8px 0}.empty p{font-size:11px;line-height:1.5}
.toast{position:fixed;left:50%;transform:translateX(-50%) translateY(20px);bottom:calc(82px + env(safe-area-inset-bottom));z-index:100;background:#2d2539;color:#fff;border-radius:14px;padding:10px 14px;font-size:11px;font-weight:800;opacity:0;pointer-events:none;transition:.2s;max-width:calc(100% - 32px);text-align:center}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.install-card{background:#1d2d53;color:#fff;border-radius:20px;padding:15px;margin-top:12px}.install-card b{font-size:13px}.install-card p{font-size:10px;color:#dbe2f3;line-height:1.5;margin:5px 0 10px}
@media(min-width:520px){.content{padding-left:22px;padding-right:22px}.memory-grid{grid-template-columns:repeat(4,1fr)}.game-grid{grid-template-columns:repeat(3,1fr)}}