*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
body{margin:0;font-family:Inter,"Noto Sans",Arial,sans-serif;color:#173d31;background:linear-gradient(145deg,#edf8f2,#fffaf0)}
.btn{min-height:48px;padding:10px 20px;border:0;border-radius:999px;font:inherit;font-weight:850;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}
.btn.primary{color:#fff;background:linear-gradient(135deg,#177a55,#38a978)}
.btn.secondary{color:#177a55;background:#fff;border:2px solid #a9d7c2}
.v2-main .screen{display:none;flex-direction:column;max-width:1080px;margin:0 auto}
.v2-main .screen.active{display:flex}
.eyebrow{display:inline-flex;align-self:flex-start;padding:5px 12px;border-radius:999px;background:#e3f4ea;color:#177a55;font-size:15px;font-weight:900}
.title{font-size:clamp(30px,4.8vw,50px);line-height:1.08;margin:10px 0 8px}
.heading{font-size:clamp(24px,3.2vw,36px);line-height:1.18;margin:10px 0 12px}
.lead{font-size:clamp(17px,2vw,22px);line-height:1.55;color:#3d5e52;margin:0 0 10px}
.cover{display:grid;grid-template-columns:1fr;gap:20px;align-items:center}
.cover.has-pic{grid-template-columns:1.15fr .85fr}
.cover-pic{width:100%;max-height:330px;object-fit:contain;border-radius:20px}
.goals{margin:8px 0 0;padding-left:24px;font-size:clamp(16px,1.8vw,20px);line-height:1.5}
.body-card{margin:0;padding:15px 18px;border:2px solid #cce5d8;border-radius:18px;background:#fff;font-size:clamp(17px,2vw,22px);line-height:1.58}
.points{margin:10px 0 0;padding:12px 16px 12px 35px;border-radius:16px;background:#f3faf6;font-size:clamp(16px,1.8vw,20px);line-height:1.48}
.example{margin:10px 0 0;padding:12px 16px;border-radius:16px;background:#fff8e6;border:1px solid #f0dca8;font-size:clamp(16px,1.8vw,20px);line-height:1.5}
.example b{display:inline-block;margin-right:8px;padding:2px 9px;border-radius:8px;background:#f5c95c;color:#5a3d00;font-size:.84em}
.question{font-size:clamp(20px,2.6vw,30px);font-weight:900;line-height:1.38;margin:12px 0 6px}
.options{display:grid;grid-template-columns:1fr;gap:10px;margin-top:10px}
.option{min-height:60px;padding:10px 16px;border:2px solid #cce5d8;border-radius:16px;background:#fff;color:#173d31;font:inherit;font-size:clamp(18px,2.1vw,24px);font-weight:800;text-align:left;cursor:pointer}
.option.correct{border-color:#38a978;background:#e3f7ed}.option.wrong{border-color:#e58b8b;background:#fff0f0}
.feedback{min-height:28px;margin-top:10px;font-size:17px;font-weight:850}.feedback.ok{color:#177a55}.feedback.no{color:#b94747}
.prompt{font-size:clamp(17px,2vw,21px);line-height:1.5;margin:0 0 8px}
.sort{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.chips{display:grid;gap:8px;align-content:start}.chip{min-height:52px;padding:8px 12px;border:2px dashed #a9d7c2;border-radius:14px;background:#fff;font:inherit;font-size:clamp(16px,1.9vw,20px);font-weight:800;color:#173d31;cursor:pointer;text-align:left}
.chip.used{opacity:.35;cursor:default}.slots{margin:0;padding:0 0 0 30px;display:grid;gap:8px;align-content:start}.slots li{min-height:52px;padding:10px 12px;border-radius:14px;background:#f1faf5;border:2px solid #cce5d8;font-size:clamp(16px,1.9vw,20px);font-weight:800}.sort.ok .slots li{border-color:#38a978;background:#e3f7ed}.reset{align-self:flex-start;margin-top:8px}
.review-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.review-card{padding:12px 14px;border:2px solid #cce5d8;border-radius:16px;background:#fff;font-size:clamp(15px,1.7vw,19px);line-height:1.45}.review-card b{display:block;color:#177a55;margin-bottom:2px}.review-card span{display:block}
.done{display:flex;flex-direction:column;align-items:center;text-align:center;justify-content:center;min-height:55vh}.done>b{font-size:64px;color:#177a55;line-height:1}
.chapter-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.chapter-card{display:flex;flex-direction:column;gap:3px;min-width:0;padding:14px;border:2px solid #cce5d8;border-radius:17px;background:#fff;text-decoration:none;color:inherit}.chapter-card small{color:#177a55;font-weight:850}.chapter-card strong{font-size:19px}.chapter-card span{font-size:14px;line-height:1.3;color:#3d5e52}
.chapter-menu{align-items:center;text-align:center}.chapter-topic{font-size:clamp(21px,3vw,34px);margin:0 0 10px;color:#177a55}.chapter-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:14px}
.topline{display:flex;align-items:center;justify-content:space-between;gap:10px;align-self:stretch}.topline .eyebrow{align-self:center}
.listen{flex:none;min-height:36px;padding:4px 14px;border-radius:999px;border:2px solid #a9d7c2;background:#fff;color:#177a55;font:inherit;font-size:14px;font-weight:850;cursor:pointer}.listen:hover{background:#e3f4ea}.done .listen{margin-top:10px}
.menu-page .v2-lang,.menu-page .v2-sheet{display:none}
@media(max-width:900px){.cover.has-pic{grid-template-columns:1fr;gap:8px}.cover-pic{max-height:180px}.chapter-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){
 .listen{min-height:30px;padding:2px 11px;font-size:13px}
 .v2-main .screen{padding-top:8px!important}.title{font-size:29px;margin:7px 0 6px}.heading{font-size:22px;margin:7px 0 8px}.lead{font-size:15.5px;line-height:1.42}.goals{font-size:14.5px;line-height:1.38;margin-top:4px}.cover-pic{max-height:125px}
 .body-card{padding:10px 12px;font-size:15.5px;line-height:1.46}.points{font-size:14.5px;padding:7px 10px 7px 27px;margin-top:6px;line-height:1.38}.example{font-size:14.5px;padding:8px 10px;margin-top:6px;line-height:1.4}
 .question{font-size:19px;margin:6px 0 3px;line-height:1.3}.option{min-height:54px;font-size:17px;padding:7px 11px}.options{gap:7px;margin-top:6px}.feedback{min-height:22px;margin-top:5px;font-size:14px}
 .sort{grid-template-columns:1fr;gap:6px}.chips{grid-template-columns:1fr 1fr;gap:5px}.chip,.slots li{min-height:38px;font-size:13.5px;padding:5px 7px}.slots{gap:4px}.review-grid{grid-template-columns:1fr;gap:5px}.review-card{padding:7px 9px;font-size:13.5px}
 .chapter-grid{gap:6px}.chapter-card{padding:8px 9px;border-radius:12px}.chapter-card small{font-size:11px}.chapter-card strong{font-size:15px}.chapter-card span{font-size:12px}.menu-page .title{font-size:25px}.menu-page .lead{font-size:14px}
}
@media(max-height:700px){.goals{font-size:14px;line-height:1.28}}
@media(max-height:700px) and (min-height:451px) and (min-width:600px){.cover.has-pic{grid-template-columns:1.2fr .8fr;gap:18px}.cover-pic{display:block;max-height:calc(100vh - 210px);max-height:calc(100dvh - 210px)}}
@media(max-height:700px) and (max-width:599px){.cover-screen .cover-pic{min-height:0}}
@media(max-height:450px){.cover-pic{display:none}}
@media(max-width:900px) and (min-height:451px){.v2-main .screen.cover-screen{height:100%}.cover-screen .cover.has-pic{display:flex;flex-direction:column;flex:1 1 auto;min-height:0;justify-content:center;gap:10px}.cover-screen .cover-pic{flex:1 1 0;min-height:120px;max-height:420px;height:auto;width:100%;object-fit:contain}}
@media(max-height:700px) and (max-width:599px){.cover-screen .cover-pic{min-height:0}}