.course-stage{max-width:900px;margin:35px auto;background:#08776f;border-radius:18px;padding:0 0 45px;min-height:720px}.course-summary{background:#d4e8e8;border-radius:18px;padding:22px 28px}.course-summary>div:first-child{display:flex;justify-content:space-between;align-items:center}.course-summary h1{margin:0;font-size:25px}.link-btn{border:0;background:transparent;font-size:16px;cursor:pointer}.metrics{display:grid;grid-template-columns:repeat(4,1fr);align-items:center;text-align:center;margin-top:18px}.metrics>div{display:flex;flex-direction:column;gap:8px}.metrics b{font-size:28px}.ring{width:130px;height:130px;border-radius:50%;margin:auto;background:conic-gradient(#86d341 var(--pct),#c5d6d8 0);display:grid;place-content:center;position:relative}.ring:before{content:"";position:absolute;inset:11px;border-radius:50%;background:#d4e8e8}.ring>*{z-index:1}.ring strong{font-size:25px}.course-tabs{margin:32px 0;display:grid;grid-template-columns:repeat(3,1fr);background:#fff;border-radius:30px;overflow:hidden}.course-tabs button{border:0;background:#fff;padding:14px;font-size:18px;cursor:pointer}.course-tabs button.active{background:#a8d9d3}.level-map{padding:12px 75px;display:grid;grid-template-columns:repeat(5,1fr);gap:25px 50px;position:relative}.level-map:before{content:"";position:absolute;left:12%;right:12%;top:48px;height:70%;background:repeating-linear-gradient(90deg,transparent 0 7%,#5a9e9e 7% 18%,transparent 18% 22%);opacity:.45}.level{z-index:1;border:0;background:#f5f6f6;color:#08776f;width:74px;height:74px;border-radius:9px;cursor:pointer;box-shadow:0 5px 14px #003b3b35;display:flex;flex-direction:column;align-items:center;justify-content:center}.level span{font-size:28px}.level small{font-size:11px}.level.done{outline:4px solid #80d746}.on-dark{color:#d8f3f1}.difficult-grid{padding:0 35px;display:grid;grid-template-columns:1fr 1fr;gap:12px}.difficult-card{background:#fff;padding:16px;border-radius:9px;display:flex;justify-content:space-between;gap:12px}.difficult-card button{border:0;background:#ecf8f5;color:#08776f;border-radius:6px}.study-screen{max-width:830px;margin:30px auto}.study-progress{height:9px;background:#d6e3e5;border-radius:9px;overflow:hidden;margin:18px 0}.study-progress span{display:block;height:100%;background:#10a893}.flashcard{min-height:420px;background:#fff;border-radius:24px;padding:40px;text-align:center;box-shadow:0 20px 60px #0b38441c;cursor:pointer}.flashcard h1{font-size:42px;margin:70px 0 25px}.flashcard .meaning{opacity:0;transition:.25s}.flashcard.flipped .meaning{opacity:1}.sound{float:right;font-size:25px}.study-actions{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:22px}.study-actions button{border:0;border-radius:12px;padding:16px;color:#fff;font-size:17px;cursor:pointer}.unknown{background:#ec6c66}.known{background:#14a888}.student-detail{max-width:900px;margin:20px auto}.profile-head{text-align:center}.profile-head span{font-size:58px}.profile-head h2{margin:5px}.info-card{background:#fff;padding:18px;margin:14px 0;border-radius:10px}.info-card h3{border-left:4px solid #08776f;padding-left:9px}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.report{display:flex;gap:12px;align-items:center}.report h3{margin-right:auto}.report select,.report input{padding:10px;border:1px solid #d9e3e5;border-radius:5px}.ghost{background:#159f94}.stat-strip{display:flex;justify-content:space-between;background:#d9efed;padding:18px;border-radius:9px}.quiz .answer{display:block;width:100%;margin:12px 0;padding:15px;border:1px solid #dce5e7;border-radius:9px;background:#fff;cursor:pointer}.quiz .answer.chosen{border-color:#08776f;background:#e2f5f1}.quiz .primary:disabled{opacity:.45}.ring.result{background:conic-gradient(#48bd7e var(--pct),#e1e9ea 0)}.ring.result:before{background:#fff}@media(max-width:800px){.metrics{grid-template-columns:repeat(2,1fr);gap:15px}.level-map{grid-template-columns:repeat(3,1fr);padding:20px}.info-grid{grid-template-columns:1fr}.report,.stat-strip{flex-direction:column;align-items:stretch}.difficult-grid{grid-template-columns:1fr}}