:root{--primary-50:#f0f9ff;--primary-100:#e0f2fe;--primary-200:#bae6fd;--primary-300:#7dd3fc;--primary-400:#38bdf8;--primary-500:#0ea5e9;--primary-600:#0284c7;--primary-700:#0369a1;--primary-800:#075985;--primary-900:#0c4a6e;--secondary-50:#f8fafc;--secondary-100:#f1f5f9;--secondary-200:#e2e8f0;--secondary-300:#cbd5e1;--secondary-400:#94a3b8;--secondary-500:#64748b;--secondary-600:#475569;--secondary-700:#334155;--secondary-800:#1e293b;--secondary-900:#0f172a;--accent-purple:#8b5cf6;--accent-pink:#ec4899;--accent-green:#10b981;--accent-orange:#f59e0b;--accent-red:#ef4444;--success-50:#f0fdf4;--success-500:#22c55e;--success-600:#16a34a;--warning-50:#fffbeb;--warning-500:#f59e0b;--warning-600:#d97706;--error-50:#fef2f2;--error-500:#ef4444;--error-600:#dc2626;--white:#fff;--gray-50:#f9fafb;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-300:#d1d5db;--gray-400:#9ca3af;--gray-500:#6b7280;--gray-600:#4b5563;--gray-700:#374151;--gray-800:#1f2937;--gray-900:#111827;--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe 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#3b82f633;border-top-color:#3b82f6;height:60%;left:20%;top:20%;width:60%}.loading-text{color:#374151;font-size:1.125rem;font-weight:600;gap:.5rem}.loading-dots,.loading-text{align-items:center;display:flex}.loading-dot{animation:dotPulse 1.4s ease-in-out infinite;background:#3b82f6;height:6px;width:6px}.loading-dot:nth-child(2){animation-delay:.2s}.loading-dot:nth-child(3){animation-delay:.4s}@keyframes dotPulse{0%,80%,to{opacity:.3;transform:scale(.8)}40%{opacity:1;transform:scale(1)}}.loading-subtext{color:#6b7280}.icon{display:inline-block;object-fit:contain;transition:all .2s ease;vertical-align:middle}.icon-small{height:16px;width:16px}.icon-medium{height:20px;width:20px}.icon-large{height:24px;width:24px}.icon-xl{height:32px;width:32px}.icon-2xl{height:48px;width:48px}.icon:hover{transform:scale(1.05)}.btn .icon{margin-right:.375rem}.btn .icon:only-child{margin-right:0}.icon-button{cursor:pointer;transition:transform .2s ease,opacity .2s ease}.icon-button:hover{opacity:.8;transform:scale(1.1)}.icon-button:active{transform:scale(.95)}.icon-disabled{cursor:not-allowed;opacity:.5}.icon-disabled:hover{opacity:.5;transform:none}.icon-loading{animation:iconPulse 1.5s ease-in-out infinite}@keyframes iconPulse{0%,to{opacity:1}50%{opacity:.5}}.icon-center{display:block;margin:0 auto}.icon-inline{vertical-align:initial}.card-header .icon,.section-header .icon{margin-right:.5rem}@media (max-width:768px){.icon-large{height:20px;width:20px}.icon-xl{height:28px;width:28px}.icon-2xl{height:40px;width:40px}}.leaderboard-container{background:linear-gradient(135deg,#f8fafc,#e2e8f0);min-height:100vh;padding:2rem}.leaderboard-header{background:#fff;border:1px solid #e5e7eb;border-radius:16px;box-shadow:0 4px 20px #0000001a;margin-bottom:2rem;padding:2rem}.header-info h1{align-items:center;color:#1f2937;display:flex;font-size:2rem;font-weight:700;gap:1rem;margin:0 0 .5rem}.header-info 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