*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--primary: #f97316;--accent: #ea580c;--correct: #16a34a;--wrong: #dc2626;--bg: #fafafa;--surface: #ffffff;--surface-hover: #fff4ed;--text: #1e293b;--text-muted: rgba(30, 41, 59, .55);--font: "Inter", "Segoe UI", system-ui, sans-serif;--radius: 16px;--radius-sm: 10px}html,body,#root{width:100%;height:100%;overflow:hidden}body{font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{display:flex;align-items:center;justify-content:center;background-image:radial-gradient(ellipse at 20% 50%,rgba(249,115,22,.08) 0%,transparent 50%),radial-gradient(ellipse at 80% 20%,rgba(234,88,12,.05) 0%,transparent 50%)}.screen{width:100%;max-width:480px;height:100vh;max-height:920px;display:flex;flex-direction:column;padding:1.5rem;animation:fadeIn .35s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.screen-header{text-align:center;margin-bottom:1.5rem}.screen-header h1{font-size:1.6rem;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.screen-header p{font-size:.85rem;color:var(--text-muted);margin-top:.4rem}.quiz-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:.75rem;padding-right:4px}.quiz-list::-webkit-scrollbar{width:4px}.quiz-list::-webkit-scrollbar-track{background:transparent}.quiz-list::-webkit-scrollbar-thumb{background:#0000001a;border-radius:2px}.quiz-card{background:var(--surface);border:1px solid rgba(0,0,0,.06);border-radius:var(--radius);padding:1.1rem 1.25rem;cursor:pointer;transition:all .2s ease;position:relative;overflow:hidden}.quiz-card:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:0;transition:opacity .2s}.quiz-card:hover{border-color:#f973164d;transform:translateY(-2px);box-shadow:0 6px 24px #00000014}.quiz-card:hover:before{opacity:1}.quiz-card-badge{display:inline-flex;align-items:center;gap:.35rem;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);margin-bottom:.5rem}.quiz-card-question{font-size:.95rem;font-weight:600;line-height:1.4;color:var(--text)}.quiz-card-meta{display:flex;gap:.75rem;margin-top:.65rem;font-size:.72rem;color:var(--text-muted)}.game-screen{position:relative;width:100%;height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden}.game-canvas-wrapper{width:100%;max-width:480px;height:100vh;max-height:920px;position:relative}.result-screen{align-items:center;justify-content:center;text-align:center;gap:1rem}.result-icon{font-size:4rem;animation:popIn .5s cubic-bezier(.34,1.56,.64,1)}@keyframes popIn{0%{transform:scale(0);opacity:0}to{transform:scale(1);opacity:1}}.result-title{font-size:1.6rem;font-weight:800}.result-title.correct{color:var(--correct)}.result-title.wrong{color:var(--wrong)}.result-title.expired{color:var(--accent)}.result-explanation{font-size:.9rem;color:var(--text-muted);line-height:1.5;max-width:340px;background:var(--surface);padding:1rem 1.25rem;border-radius:var(--radius-sm);border:1px solid rgba(0,0,0,.06)}.result-question{font-size:.85rem;color:var(--text-muted);max-width:340px}.btn{padding:.9rem 2rem;font-family:var(--font);font-size:.95rem;font-weight:600;border:none;border-radius:var(--radius-sm);cursor:pointer;transition:all .2s ease}.btn-primary{color:#fff;background:linear-gradient(135deg,var(--primary),var(--accent))}.btn-primary:hover{opacity:.9;transform:translateY(-1px)}.btn-ghost{color:var(--text-muted);background:transparent;border:1px solid rgba(0,0,0,.08)}.btn-ghost:hover{border-color:#00000026;color:var(--text)}.result-actions{display:flex;flex-direction:column;gap:.6rem;width:100%;max-width:280px;margin-top:.5rem}