:root{--bg: #eef1f6;--ink: #12151c;--muted: #5b6472;--accent: #1f5eff;--cta: #ff5a3d;--line: rgba(18, 21, 28, .1);--panel: #ffffff;--radius: 14px;--font-display: "Sora", sans-serif;--font-body: "Manrope", sans-serif}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}body{font-family:var(--font-body);color:var(--ink);background:var(--bg)}a{color:inherit;text-decoration:none}code{font-size:.9em;color:var(--accent)}.app{position:relative;min-height:100vh;display:flex;flex-direction:column}.gridbg{position:fixed;top:0;right:0;bottom:0;left:0;z-index:-1;pointer-events:none;background:linear-gradient(180deg,rgba(255,255,255,.7),transparent 42%),radial-gradient(ellipse 55% 40% at 85% 0%,rgba(31,94,255,.14),transparent 55%),radial-gradient(ellipse 40% 30% at 10% 20%,rgba(255,90,61,.08),transparent 50%),repeating-linear-gradient(0deg,transparent,transparent 23px,rgba(18,21,28,.03) 24px),repeating-linear-gradient(90deg,transparent,transparent 23px,rgba(18,21,28,.03) 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rgba(31,94,255,.35)}.section{margin-top:2.5rem}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:.85rem}@media(max-width:720px){.grid-3{grid-template-columns:1fr}}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1.05rem}.card p{color:var(--muted);margin:.35rem 0 0;font-size:.94rem}.band{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;align-items:center;padding:1.25rem;border-radius:var(--radius);border:1px solid var(--line);background:var(--panel)}.quiz h2{font-size:1.55rem}.bar{height:7px;background:#1f5eff1f;border-radius:99px;overflow:hidden;margin-bottom:1.25rem}.bar span{display:block;height:100%;background:var(--accent);transition:width .24s ease}.choices{display:grid;gap:.65rem;margin-top:1.25rem}.choice{text-align:left;padding:.95rem 1rem;border-radius:var(--radius);border:1px solid var(--line);background:var(--panel);font:inherit;cursor:pointer;display:flex;gap:.75rem;align-items:flex-start;transition:border-color .14s ease,transform .14s ease}.choice:hover{border-color:var(--accent);transform:translateY(-1px)}.choice-i{width:1.6rem;height:1.6rem;border-radius:8px;background:#1f5eff1a;color:var(--accent);font-weight:700;font-size:.8rem;display:grid;place-items:center;flex-shrink:0}.break{list-style:none;padding:0;display:grid;gap:.4rem;margin:1.2rem 0 1.5rem}.break .ok{color:#0f7a45}.break .no{color:#b42318}.pct{font-size:.45em;color:var(--muted);font-weight:600}.score-ring{--p: 0%;width:96px;height:96px;border-radius:50%;background:conic-gradient(var(--accent) var(--p),rgba(31,94,255,.12) 0);display:grid;place-items:center;margin:1rem 0}.score-ring strong{width:72px;height:72px;border-radius:50%;background:var(--bg);display:grid;place-items:center;font-family:var(--font-display)}.board{list-style:none;padding:0;margin:1.2rem 0 0;display:grid;gap:.5rem}.board li{display:grid;grid-template-columns:2.2rem 1fr auto;gap:.75rem;align-items:center;padding:.85rem 1rem;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}.rank{font-weight:700;color:var(--accent)}.score{font-variant-numeric:tabular-nums;font-weight:700}.method{padding-left:1.2rem;color:var(--muted);display:grid;gap:.55rem;margin:1.2rem 0 1.5rem}.row{display:flex;gap:.6rem;flex-wrap:wrap}.muted{color:var(--muted)}@keyframes rise{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.rise{animation:rise .42s ease both}