@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}body{margin:0}#root{text-align:center;border-inline:1px solid var(--border);box-sizing:border-box;flex-direction:column;width:1126px;max-width:100%;min-height:100svh;margin:0 auto;display:flex}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);color:var(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}:root{color:#f5f5f5;font-synthesis:none;text-rendering:optimizelegibility;background:#0c0c0e;font-family:Inter,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,a{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.65}.app{place-items:center;min-height:100vh;padding:40px 20px;display:grid}.container{text-align:center;width:100%;max-width:620px}.eyebrow{color:#a3a3a3;letter-spacing:2px;font-size:12px;font-weight:700}h1{letter-spacing:-3px;margin:24px 0 16px;font-size:clamp(42px,8vw,68px);line-height:1.08}h1 span{color:#a78bfa}.subtitle{color:#a3a3a3;margin-bottom:40px;font-size:15px;line-height:1.7}.picker{text-align:left;background:#151518;border:1px solid #29292e;border-radius:20px;padding:28px}.picker label{color:#d4d4d8;margin-bottom:14px;font-size:13px;font-weight:600;display:block}.difficulty-options{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.difficulty{color:#d4d4d8;background:#1d1d21;border:1px solid #34343a;border-radius:10px;padding:12px 8px;transition:all .2s}.difficulty.selected{color:#c4b5fd;background:#29213c;border-color:#a78bfa}.pick-button{color:#17121f;background:#a78bfa;border:none;border-radius:10px;width:100%;margin-top:20px;padding:16px;font-weight:700;transition:all .2s}.pick-button:hover:not(:disabled){background:#c4b5fd;transform:translateY(-1px)}.question-card{background:#1b1b20;border:1px solid #34343a;border-radius:14px;margin-top:24px;padding:22px}.question-label{color:#a3a3a3;letter-spacing:1.5px;font-size:11px;font-weight:700}.question-difficulty{margin-top:10px;font-size:11px;font-weight:700;display:inline-block}.question-difficulty.easy{color:#4ade80}.question-difficulty.medium{color:#facc15}.question-difficulty.hard{color:#fb7185}.question-card h2{margin:14px 0 22px;font-size:22px;line-height:1.4}.solve-button{color:#fff;text-align:center;background:#29292f;border-radius:9px;padding:13px;font-size:14px;font-weight:600;text-decoration:none;display:block}.solve-button:hover{background:#393940}.error{color:#fca5a5;margin-top:18px;font-size:13px}.footer{color:#737373;margin-top:28px;font-size:12px}@media (width<=480px){.picker{padding:20px}h1{letter-spacing:-2px}.question-card h2{font-size:19px}}