:root{
  --bg:#f4f8f2; --card:#ffffff; --ink:#17352f; --muted:#6b7f79;
  --green:#0f5d4e; --green2:#1f806a; --mint:#dff0e8; --line:#d9e4df;
  --danger:#a93434; --dangerbg:#fdeaea; --ok:#167447; --okbg:#e6f6ed;
  --amber:#9b6515; --amberbg:#fff3dc; --shadow:0 10px 30px rgba(27,64,54,.11);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0;min-height:100%;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
body{min-height:100vh;background:radial-gradient(circle at 90% 0,#dfeee7 0,transparent 30%),linear-gradient(#f8fbf6,#eef5f0)}
button,input,select{font:inherit}
button{cursor:pointer}
#app{min-height:100vh}
.shell{max-width:850px;margin:0 auto;min-height:100vh;padding:18px 16px 30px}
.topbar{display:flex;align-items:center;gap:12px;margin-bottom:18px;min-height:48px}
.back{width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;font-size:23px;color:var(--green);box-shadow:0 3px 10px rgba(0,0,0,.04)}
.top-title{font-weight:800;font-size:20px;line-height:1.1}.top-sub{font-size:12px;color:var(--muted);margin-top:3px}
.home-head{text-align:center;padding:17px 0 12px}.logo-wrap{display:inline-grid;place-items:center;width:130px;height:130px;border-radius:35px;background:linear-gradient(145deg,#0f5d4e,#1c7f68);box-shadow:0 15px 36px rgba(15,93,78,.25);margin-bottom:14px}.logo-svg{width:108px;height:108px}
.home-title{font-size:31px;letter-spacing:1.5px;font-weight:900;margin:0;color:#103e35}.home-kicker{margin:7px auto 0;color:var(--muted);font-size:14px;max-width:500px}
.menu-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin-top:22px}.menu-card{min-height:145px;border:0;border-radius:25px;background:var(--card);box-shadow:var(--shadow);padding:21px 17px;text-align:left;color:var(--ink);position:relative;overflow:hidden}.menu-card:active{transform:scale(.985)}.menu-icon{font-size:31px;margin-bottom:12px;display:block}.menu-card strong{display:block;font-size:19px}.menu-card small{display:block;color:var(--muted);margin-top:5px;line-height:1.35}.menu-card:after{content:"";position:absolute;width:74px;height:74px;border-radius:50%;right:-25px;bottom:-28px;background:var(--mint)}
.panel{background:#fff;border-radius:24px;padding:18px;box-shadow:var(--shadow);margin-bottom:14px}.panel h2,.panel h3{margin:0 0 8px}.panel p{margin:0;color:var(--muted);line-height:1.45}
.option-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.option{border:1px solid var(--line);border-radius:20px;background:white;padding:18px;text-align:left;min-height:105px;color:var(--ink)}.option strong{display:block;font-size:17px;margin-bottom:5px}.option small{color:var(--muted);line-height:1.3}.option.active,.option:active{border-color:var(--green2);background:#f2faf6}
.theme-list{display:grid;gap:10px}.theme-row{display:flex;align-items:center;justify-content:space-between;width:100%;border:1px solid var(--line);border-radius:18px;background:#fff;padding:15px 16px;text-align:left;color:var(--ink)}.theme-row strong{font-size:16px}.badge{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:28px;padding:0 9px;border-radius:999px;background:var(--mint);color:var(--green);font-size:12px;font-weight:800}
.length-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.length-btn{border:1px solid var(--line);border-radius:19px;background:#fff;padding:18px 8px;color:var(--ink);font-weight:800;font-size:17px}.length-btn small{display:block;font-size:11px;font-weight:500;color:var(--muted);margin-top:4px}
.game-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}.progress-wrap{flex:1}.progress-text{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-bottom:6px}.progress{height:8px;background:#dde8e3;border-radius:99px;overflow:hidden}.progress > div{height:100%;background:linear-gradient(90deg,var(--green),#46a383);border-radius:99px}.score-pill{background:var(--mint);color:var(--green);font-weight:900;border-radius:18px;padding:10px 13px;white-space:nowrap}
.question-card{background:#fff;border-radius:27px;box-shadow:var(--shadow);padding:13px}.question-meta{display:flex;align-items:center;justify-content:space-between;padding:2px 3px 10px;font-size:12px;color:var(--muted)}.question-img-wrap{background:#eef2ef;border-radius:21px;overflow:hidden;display:flex;align-items:center;justify-content:center;min-height:280px;max-height:55vh}.question-img{display:block;width:100%;height:auto;max-height:55vh;object-fit:contain}.answer-box{margin-top:13px}.answer-input{width:100%;height:55px;border:2px solid var(--line);border-radius:18px;padding:0 15px;background:#fcfefd;color:var(--ink);outline:none;font-size:16px}.answer-input:focus{border-color:var(--green2);box-shadow:0 0 0 3px rgba(31,128,106,.10)}.primary{width:100%;height:54px;border:0;border-radius:18px;background:linear-gradient(135deg,var(--green),var(--green2));color:white;font-weight:850;margin-top:10px;box-shadow:0 8px 20px rgba(15,93,78,.19)}.primary.secondary{background:#fff;color:var(--green);border:1px solid var(--green);box-shadow:none}.primary.danger{background:var(--danger)}
.feedback{margin-top:12px;border-radius:18px;padding:14px 15px;line-height:1.35}.feedback.ok{background:var(--okbg);color:var(--ok)}.feedback.bad{background:var(--dangerbg);color:var(--danger)}.feedback strong{display:block;margin-bottom:4px}.feedback .correct{font-weight:900;color:#772828}.strict-note{text-align:center;font-size:11px;color:var(--muted);margin:10px 4px 0}
.result-hero{text-align:center;padding:24px 15px}.result-score{font-size:56px;font-weight:950;color:var(--green);line-height:1}.result-pct{font-size:22px;font-weight:800;margin-top:7px}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-top:18px}.stat{border-radius:17px;background:#f4f8f5;padding:12px 6px}.stat b{display:block;font-size:21px}.stat span{font-size:11px;color:var(--muted)}
.result-list{display:grid;gap:10px}.result-row{border:1px solid var(--line);border-radius:19px;background:#fff;padding:14px 15px;text-align:left;color:var(--ink)}.result-row-top{display:flex;justify-content:space-between;gap:10px}.result-row strong{font-size:16px}.result-row small{display:block;color:var(--muted);margin-top:5px}.pct-chip{font-size:13px;font-weight:900;color:var(--green);background:var(--mint);border-radius:99px;padding:6px 9px;height:max-content}
.fail-card,.consult-card{display:grid;grid-template-columns:112px 1fr;gap:13px;border:1px solid var(--line);background:#fff;border-radius:20px;padding:9px;align-items:center}.thumb{width:112px;height:94px;object-fit:cover;border-radius:14px;background:#eef2ef}.fail-card h4,.consult-card h4{margin:0 0 5px;font-size:14px;line-height:1.25}.fail-card p,.consult-card p{margin:0;color:var(--muted);font-size:11px}.fail-count{display:inline-block;margin-top:7px;background:var(--dangerbg);color:var(--danger);font-size:11px;font-weight:800;border-radius:99px;padding:5px 8px}.list-stack{display:grid;gap:10px}
.toolbar{display:grid;grid-template-columns:1fr;gap:9px;margin-bottom:12px}.search{height:48px;border:1px solid var(--line);border-radius:16px;background:#fff;padding:0 14px;color:var(--ink);outline:none}.select{height:48px;border:1px solid var(--line);border-radius:16px;background:#fff;padding:0 12px;color:var(--ink)}
.info-note{border-radius:16px;background:var(--amberbg);color:var(--amber);font-size:12px;padding:11px 13px;line-height:1.4;margin:10px 0}.empty{text-align:center;padding:40px 20px;color:var(--muted)}
.detail-wrong{display:grid;grid-template-columns:120px 1fr;gap:13px;border-bottom:1px solid var(--line);padding:13px 0}.detail-wrong:last-child{border-bottom:0}.detail-wrong img{width:120px;height:95px;object-fit:cover;border-radius:13px}.detail-wrong h4{margin:0 0 7px;font-size:14px}.detail-wrong p{margin:4px 0;font-size:12px;color:var(--muted)}.detail-wrong p b{color:var(--ink)}
.modal{position:fixed;inset:0;z-index:50;background:rgba(4,17,13,.92);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px}.modal.hidden{display:none}.modal img{max-width:100%;max-height:75vh;border-radius:18px;background:#fff}.modal-caption{color:white;text-align:center;font-weight:750;margin-top:14px;max-width:700px}.modal-close{position:absolute;right:18px;top:18px;width:46px;height:46px;border-radius:50%;border:0;background:rgba(255,255,255,.14);color:#fff;font-size:28px}.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,25px);opacity:0;pointer-events:none;background:#17352f;color:#fff;padding:11px 16px;border-radius:999px;font-size:13px;z-index:70;transition:.2s}.toast.show{opacity:1;transform:translate(-50%,0)}
.spacer{height:8px}.muted{color:var(--muted)}.center{text-align:center}.hidden{display:none!important}
@media(max-width:520px){.shell{padding:13px 12px 24px}.menu-grid{gap:10px}.menu-card{min-height:132px;padding:17px 14px}.home-title{font-size:27px}.logo-wrap{width:116px;height:116px;border-radius:31px}.logo-svg{width:96px;height:96px}.option-grid{grid-template-columns:1fr}.question-img-wrap{min-height:240px}.fail-card,.consult-card{grid-template-columns:96px 1fr}.thumb{width:96px;height:82px}.detail-wrong{grid-template-columns:95px 1fr}.detail-wrong img{width:95px;height:80px}}
#pwaInstall{position:fixed;right:14px;bottom:14px;z-index:45;border:0;border-radius:999px;background:#0f5d4e;color:#fff;padding:11px 15px;font-weight:800;box-shadow:0 8px 22px rgba(15,93,78,.25)}
#pwaInstall[hidden]{display:none!important}