:root{color-scheme:dark;--bg:#07101f;--panel:#111f34;--sub:#192b42;--stroke:#31445c;--bright:#f2f7ff;--muted:#aabbd1;--accent:#3b63ff;--accent2:#12c9e5;--red:#ff667c;--green:#4fe0b9;--yellow:#ffd28a;font:15px/1.5 Inter,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}
*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{background:radial-gradient(ellipse at 80% 0,#122b5c 0,transparent 40%),var(--bg);color:var(--bright)}a{color:#82b8ff}button,input,textarea,select{font:inherit}button{cursor:pointer;border:0}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,a:focus-visible{outline:2px solid #7bafff;outline-offset:2px}
.mast{padding:18px 32px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--stroke);background:#08172aee;gap:18px}.brand{display:flex;gap:17px;align-items:center}.brand img{width:155px;height:auto;object-fit:contain}.brand-name{border-left:1px solid #526580;padding-left:16px;font-size:16px;font-weight:760;white-space:nowrap;letter-spacing:.03em}.pill{font-size:11px;display:inline-flex;align-items:center;gap:5px;border:1px solid #41628a;color:#cbdfff;background:#20385b;border-radius:99px;padding:4px 9px}.mast-right{display:flex;gap:12px;align-items:center;font-size:13px;color:var(--muted)}.layout{display:grid;grid-template-columns:218px minmax(0,1fr);min-height:calc(100vh - 75px)}nav{padding:22px 13px;border-right:1px solid var(--stroke);background:#0b1729}nav button{display:block;width:100%;text-align:left;color:#bbcee2;border-radius:10px;background:transparent;padding:12px 15px;margin:5px 0}nav button:hover,nav button.active{background:#1d3350;color:#fff}nav .navhead{font-size:10px;letter-spacing:.13em;color:#7189ab;margin:20px 15px 10px}main{max-width:1330px;width:100%;margin:0 auto;padding:36px}h1{font-size:33px;letter-spacing:-.04em;line-height:1.1;margin:4px 0 10px}h2{font-size:21px;margin:0 0 10px}h3{font-size:16px;margin:0 0 8px}p{margin:8px 0;color:var(--muted)}.small{font-size:12px}.muted{color:var(--muted)}.eyebrow{font-size:11px;color:#6ecbff;font-weight:720;letter-spacing:.14em;text-transform:uppercase}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:17px;margin:24px 0}.card{border:1px solid var(--stroke);background:linear-gradient(145deg,#172940,#111e31);border-radius:16px;padding:23px;min-width:0}.card:hover{border-color:#4f6687}.card .title{font-weight:760;font-size:17px;margin:8px 0}.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.split{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.mt{margin-top:22px}.btn{border:1px solid #5d85f8;background:var(--accent);color:white;padding:9px 16px;border-radius:9px;font-weight:650;display:inline-flex;justify-content:center;gap:8px;align-items:center}.btn:hover{background:#2853e1}.btn.secondary{background:transparent;border-color:#536b89;color:#dce8f8}.btn.red{background:#71223a;border-color:#ab4d67}.btn:disabled{opacity:.5;cursor:default}.btn.sm{font-size:12px;padding:6px 11px}.stack{display:grid;gap:12px}.field{display:grid;gap:6px;margin:12px 0}.field label{font-size:12px;font-weight:600;color:#b5c9de}input,textarea,select{width:100%;background:#09182b;color:#f3f8ff;border:1px solid #435c7a;border-radius:9px;padding:11px 13px;min-width:0}textarea{resize:vertical;min-height:100px}input::placeholder,textarea::placeholder{color:#7c94af}.login-bg{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}.login-art{background:linear-gradient(140deg,#1222e9,#090853 70%);display:flex;flex-direction:column;justify-content:center;padding:8vw;position:relative;overflow:hidden}.login-art::after{content:"";width:480px;height:480px;border:90px solid #ffffff14;border-radius:50%;position:absolute;right:-180px;bottom:-260px}.login-art img{width:min(370px,90%);height:auto;object-fit:contain;z-index:1}.login-art h1{font-size:56px;margin-top:45px;z-index:1}.login-art p{font-size:20px;color:#c7d6ff;z-index:1}.login-form{display:flex;justify-content:center;align-items:center;padding:45px}.login-card{width:min(430px,100%)}.login-card h2{font-size:30px}.notice{padding:12px 16px;border:1px solid #48618a;border-radius:9px;background:#1c3050;color:#c8d9ef;margin:16px 0}.notice.error{border-color:#9b3a58;background:#3a192b;color:#ffd7db}.notice.success{border-color:#2c8570;background:#153e37;color:#a0ffdf}.leaderboard{border-collapse:collapse;width:100%;margin:20px 0;border:1px solid var(--stroke)}.leaderboard th,.leaderboard td{text-align:left;padding:13px;border-bottom:1px solid #2b3e56}.leaderboard th{font-size:11px;letter-spacing:.07em;text-transform:uppercase;background:#17283e;color:#9bb0ca}.leaderboard tr:nth-child(even){background:#0f1d30}.leaderboard td:last-child,.leaderboard th:last-child{text-align:right}.question{margin-bottom:16px}.question.solved{border-color:#306c64}.question h3{line-height:1.55}.question form{display:flex;gap:10px;margin-top:18px}.question form input{flex:1}.question .question-text{word-wrap:break-word;white-space:pre-wrap;color:#d7e5f3}.question .question-text a{word-break:break-word}.locked{opacity:.65}.tags{display:flex;gap:8px;flex-wrap:wrap}.tag{background:#233c5a;color:#bdddff;font-size:11px;border-radius:6px;padding:4px 8px}.tag.green{background:#164c41;color:#8ef6d7}.tag.red{background:#4a2936;color:#ffb6c2}.tag.yellow{background:#614b22;color:#ffde9c}.toast{position:fixed;bottom:26px;right:26px;z-index:30;max-width:430px;padding:14px 20px;background:#1d3654;border:1px solid #6891c6;border-radius:9px;box-shadow:0 9px 40px #0009}.inline-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:12px}.stat{font-size:28px;font-weight:800;letter-spacing:-.03em}.admin-controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(285px,1fr));gap:18px}.footer{font-size:11px;color:#768baa;margin:40px 0 0;border-top:1px solid #2c3d51;padding-top:18px}.horizontal{display:flex;align-items:center;gap:18px;flex-wrap:wrap}.loading{padding:45px;color:#ddd}.app-hide{display:none!important}.feedback-list{border-top:1px solid #415371;padding:12px 0}.button-bar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}code{color:#9edbff} @media(max-width:900px){.login-bg{grid-template-columns:1fr}.login-art{padding:35px;min-height:230px}.login-art h1{font-size:30px;margin:15px 0}.login-art p{font-size:15px}.login-art img{width:195px}.layout{grid-template-columns:1fr}nav{display:flex;overflow:auto;padding:10px;border-right:0;border-bottom:1px solid var(--stroke)}nav button{width:auto;white-space:nowrap;margin:0 3px;padding:9px 12px}.mast{padding:14px}.brand img{width:115px}.brand-name{font-size:12px}main{padding:20px}.question form{flex-direction:column}}

.case-list{display:block;margin-top:25px}.login-badge{align-self:flex-start}.template-row{padding:7px 0;border-bottom:1px solid #304258}