:root{--bg:#f7f8f5;--ink:#193c36;--sub:#75847e;--green:#236b55;--line:#e4eae2;--lime:#d8ef9c}body{font-size:14px}.topbar{background:#fffaf0aa;background:#ffffffb8}.content{max-width:1440px}.kicker{display:block;font-size:10px;font-weight:700;letter-spacing:1.8px;color:var(--green);margin-bottom:12px}.heading{margin-bottom:28px}h1{font-size:30px;line-height:1.35}.heading .muted{font-size:13px}.btn svg{width:17px;height:17px}.studio-hero{padding:39px 42px;min-height:300px;border-radius:24px;background:linear-gradient(110deg,#173f35,#214d3e)}.studio-hero h2{font-size:38px;line-height:1.25;margin:19px 0}.studio-hero p{font-size:13px;line-height:1.9}.hero-buttons{display:flex;align-items:center;gap:22px}.hero-link{color:#d9e6d4;font-size:12px;text-decoration:underline;text-underline-offset:5px}.studio-hero .hero-art{width:310px;margin-right:20px}.studio-hero .orbit{width:176px;height:176px}.studio-hero .orbit span{font-size:8px;letter-spacing:1.4px}.studio-hero 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solid var(--line);padding:19px;border-radius:17px}.question-main{display:flex;align-items:center;gap:18px;text-align:left;flex:1;min-width:0;padding:0}.question-main strong{display:block;font-size:15px;margin-bottom:8px}.question-main small{display:block;font-size:11px;color:var(--sub);line-height:1.7}.question-main .iconbox{width:56px;height:56px}.difficulty-easy{color:#4d9f6a;background:#eaf5e9}.difficulty-medium{color:#c19444;background:#fdf1dc}.difficulty-hard{color:#bd6b6a;background:#f9eaea}.difficulty-label.easy{color:#4d9f6a}.difficulty-label.medium{color:#b18431}.difficulty-label.hard{color:#bd6b6a}.bookmark-button{font-size:23px;color:#a2aaa0;padding:8px}.bookmark-button.saved{color:#c2953e}.round-launch{border:1px solid var(--line);border-radius:50%;width:36px;height:36px;font-size:17px;color:#648472}.complete-mark{font-size:9px;color:var(--green);display:block;margin-top:7px}.studio-empty{text-align:center;padding:48px 22px 38px;background:#ffffff;border:1px dashed 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