:root{--bg:#090d16;--panel:#111827;--panel2:#172033;--text:#edf4ff;--muted:#9aa9bf;--line:#26344b;--accent:#62a8ff;--accent2:#8b5cf6;--ok:#35c783;--bad:#ff6678;--warn:#f7c75d;--shadow:0 18px 50px rgba(0,0,0,.25)}[data-theme=light]{--bg:#edf2f8;--panel:#fff;--panel2:#f5f8fc;--text:#172033;--muted:#607089;--line:#d9e1ec;--accent:#2166d5;--accent2:#6f42c1;--shadow:0 14px 34px rgba(30,50,80,.12)}*{box-sizing:border-box}html{font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text)}body{margin:0;min-height:100vh;background:radial-gradient(circle at 10% 0,rgba(98,168,255,.12),transparent 35%),var(--bg)}a{color:var(--accent);text-decoration:none}button,input,select,textarea{font:inherit}.topbar{height:66px;padding:0 clamp(16px,4vw,52px);display:flex;align-items:center;gap:22px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 88%,transparent);position:sticky;top:0;backdrop-filter:blur(12px);z-index:20}.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:750;margin-right:auto}.mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;font-size:.78rem}.topbar nav{display:flex;gap:16px;align-items:center}.topbar nav a{color:var(--muted);font-size:.92rem}.theme-toggle{border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:10px;width:38px;height:38px}.shell{width:min(1180px,calc(100% - 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.achievement-icon{font-size:2rem;line-height:1}.muted-card{opacity:.68}.muted-card:hover{opacity:.9}