.practice-catalog{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,290px),1fr));gap:18px;align-items:stretch;width:100%}.practice-catalog .practice-set{display:flex;flex-direction:column;align-items:stretch;gap:14px;position:relative;width:100%;min-width:0;min-height:300px;padding:24px;text-align:left;border:1px solid var(--line);border-radius:18px;background:linear-gradient(145deg,var(--surface2),var(--surface));color:var(--ink);transition:border-color .18s,transform .18s}.practice-set:hover{border-color:var(--accent);transform:translateY(-2px)}.practice-set:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.practice-set-top{display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--accent)}.practice-set-title{font-family:Fraunces,serif;font-size:26px;font-weight:500;line-height:1.2;overflow-wrap:anywhere}.practice-work{font-size:12px;line-height:1.5;color:var(--muted)}.practice-topics{display:flex;flex-wrap:wrap;gap:7px;align-content:start}.practice-topics>span{display:inline-flex;padding:5px 9px;border:1px solid var(--line);background:var(--surface);border-radius:7px;font-size:12px;line-height:1.4;overflow-wrap:anywhere}.practice-count{font-size:12px;line-height:1.5;color:var(--muted)}.practice-set-footer{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}.practice-set-footer .mk-stat{display:inline-flex;gap:7px;align-items:center;color:var(--accent);font-size:12px}.practice-group-title{grid-column:1/-1;font-size:28px;margin:22px 0 0;padding-bottom:12px;border-bottom:1px solid var(--line)}.topic-overview-heading{display:flex;justify-content:space-between;gap:20px;align-items:center;margin:24px 0}.topic-overview-heading h2{font-size:34px;margin:8px 0}.topic-overview-heading p{color:var(--muted)}.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.topic-tile{border:1px solid var(--line);border-radius:18px;background:var(--surface);padding:22px}.topic-tile.selected{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 9%,var(--surface))}.topic-tile label{display:block;cursor:pointer}.topic-tile input{float:right;accent-color:var(--accent);width:18px;height:18px}.topic-number{font-size:12px;color:var(--muted)}.topic-tile h3{font-size:23px;line-height:1.3;margin:18px 0 24px;min-height:60px}.topic-progress{height:5px;background:var(--line);border-radius:5px;overflow:hidden}.topic-progress i{display:block;height:100%;background:var(--accent)}.topic-tile p,.topic-tile summary{font-size:12px;color:var(--muted);margin:10px 0}.topic-start{display:flex;align-items:center;gap:12px;flex-wrap:wrap;position:sticky;bottom:12px;background:var(--surface);border:1px solid var(--line);padding:16px;border-radius:16px;margin-top:22px;z-index:2}.topic-mode{display:flex;gap:4px;margin-right:auto}.topic-mode button{padding:10px;border-radius:9px;color:var(--muted)}.topic-mode button[aria-pressed=true]{background:var(--accent);color:white}.topic-player{max-width:1000px;margin:20px auto}.topic-player-caption,.topic-player>header{display:flex;justify-content:space-between;gap:12px;color:var(--muted);margin-bottom:20px}.topic-player-caption{margin:25px 0 12px;font-size:13px}.topic-flash{display:flex;flex-direction:column;align-items:center;justify-content:space-between;gap:32px;width:100%;min-height:350px;padding:35px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(145deg,var(--surface2),var(--surface));color:var(--ink);text-align:center;box-shadow:0 20px 45px #0001}.topic-flash.answer{border-color:var(--accent)}.topic-flash>div{font-size:clamp(20px,2.2vw,30px);line-height:1.55;width:100%;overflow-wrap:anywhere}.topic-flash small{font-size:12px;color:var(--muted)}.topic-player footer{display:flex;justify-content:center;gap:16px;margin-top:22px}.topic-hint{margin:16px 0;color:var(--muted)}.practice-empty{padding:60px 20px;text-align:center;border:1px dashed var(--line);border-radius:20px}.practice-empty h2{margin:18px 0}.practice-empty p{color:var(--muted);margin:15px 0}.practice-empty button{margin:8px}.homework-bundle:has(>header){border:1px solid var(--line);border-radius:22px;background:var(--surface);padding:26px}.homework-bundle>header h2{font-size:30px;margin:12px 0}.homework-bundle-progress{display:flex;justify-content:space-between;align-items:center;gap:15px;margin:18px 0}.homework-bundle>header~.homework-card{border-radius:0;border:0;border-top:1px solid var(--line);background:transparent;box-shadow:none;padding:24px 0}.homework-bundle>header~.homework-card>.mk-kicker{display:none}.homework-bundle>header~.homework-card h2{font-size:22px}@media(max-width:1100px){.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:650px){.practice-catalog,.topic-grid{grid-template-columns:1fr}.topic-overview-heading{align-items:flex-start;flex-direction:column}.topic-tile h3{min-height:0}.topic-start{position:static}.topic-flash{min-height:310px;padding:24px 18px}.topic-player footer{gap:8px;flex-wrap:wrap}.homework-bundle:has(>header){padding:18px}.homework-bundle-progress{align-items:flex-start;flex-direction:column}}.topic-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr))}.practice-player-page>.mk-head{margin:14px 0}.practice-player-page>.mk-head h1{font-size:clamp(30px,3vw,44px)}.trainer-exam-tools{position:sticky;top:78px;z-index:8;display:flex;align-items:center;gap:12px;background:var(--surface);border:1px solid var(--line);padding:12px 16px;border-radius:12px;margin-bottom:16px}.trainer-exam-tools strong{margin-right:auto}.trainer-exam-tools time{font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-size:20px}@media(max-width:650px){.trainer-exam-tools{top:65px;flex-wrap:wrap}.trainer-exam-tools strong{font-size:12px}}.practice-save-status{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);padding:2px 0}.practice-player-page>.mk-back{margin-bottom:10px}.practice-player-page>.mk-head{margin:6px 0 12px}