@tailwind base;@tailwind components;@tailwind utilities;body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;margin:0}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.app-container{background:linear-gradient(135deg,#f9fafb,#e0e7ff);color:#1f2937;font-family:Inter,sans-serif;min-height:100vh;padding:2rem}.app-title{color:#4338ca;font-size:2.5rem;font-weight:800;letter-spacing:-.5px;margin-bottom:2rem;text-align:center}.form-container{align-items:center;display:flex;flex-direction:column;gap:.75rem;margin-bottom:1.5rem}@media (min-width:640px){.form-container{flex-direction:row;justify-content:center}}.input-field{border:1px solid #d1d5db;border-radius:8px;font-size:1rem;max-width:260px;outline:none;padding:.75rem 1rem;transition:border .2s,box-shadow .2s;width:100%}.input-field:focus{border-color:#6366f1;box-shadow:0 0 0 3px #6366f14d}.submit-btn{background:#4f46e5;border:none;border-radius:8px;color:#fff;cursor:pointer;font-size:1rem;font-weight:600;padding:.75rem 1.25rem;transition:transform .2s,background .3s}.submit-btn:hover{background:#4338ca;transform:translateY(-2px)}.submit-btn.loading{background:#9ca3af;cursor:not-allowed;transform:none}.error-text{color:#dc2626;font-weight:500;margin-bottom:1rem;text-align:center}.leaderboard-container{margin:3rem auto;max-width:1000px;overflow-x:auto}.leaderboard-title{color:#374151;font-size:1.25rem;font-weight:700;margin-bottom:1rem}.leaderboard-table{background:#fff;border-collapse:collapse;border-radius:12px;box-shadow:0 4px 16px #0000000d;overflow:hidden;width:100%}.leaderboard-table thead{background:#e0e7ff;color:#3730a3;text-align:left}.leaderboard-table td,.leaderboard-table th{padding:.75rem 1rem;text-align:center}.leaderboard-table td:first-child,.leaderboard-table th:first-child{text-align:left}.leaderboard-table tbody tr:nth-child(2n){background:#f9fafb}.leaderboard-table tbody tr:hover{background:#eef2ff;transition:background .2s}.easy{color:#059669}.easy,.medium{font-weight:600}.medium{color:#b45309}.hard{color:#b91c1c;font-weight:600}.stats-container{grid-gap:1rem;display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));margin:2rem auto;max-width:800px;text-align:center}.stat-card{border-radius:10px;color:#fff;font-weight:700;padding:1.2rem;transition:transform .2s ease-in-out,box-shadow .2s}.stat-card:hover{box-shadow:0 6px 15px #00000026;transform:translateY(-5px)}.stat-card p{font-size:.9rem;margin-bottom:.4rem;opacity:.9}.stat-card h3{font-size:1.6rem}.stat-card.easy{background:#22c55e}.stat-card.medium{background:#facc15;color:#333}.stat-card.hard{background:#ef4444}.stat-card.total{background:#4f46e5}
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