:root{--color-primary:#5f43b1;--color-primary-hover:#4d3590;--color-primary-light:#7c5fc7;--color-success:#10b981;--color-success-light:#d1fae5;--color-error:#ef4444;--color-error-light:#fee2e2;--color-warning:#f59e0b;--color-warning-light:#fef3c7;--color-info:#3b82f6;--color-info-light:#dbeafe;--color-gray-50:#f9fafb;--color-gray-100:#f3f4f6;--color-gray-200:#e5e7eb;--color-gray-300:#d1d5db;--color-gray-400:#9ca3af;--color-gray-500:#6b7280;--color-gray-600:#4b5563;--color-gray-700:#374151;--color-gray-800:#1f2937;--color-gray-900:#111827;--spacing-xs:0.25rem;--spacing-sm:0.5rem;--spacing-md:1rem;--spacing-lg:1.5rem;--spacing-xl:2rem;--spacing-2xl:3rem;--radius-sm:0.375rem;--radius-md:0.5rem;--radius-lg:0.75rem;--radius-xl:1rem;--radius-2xl:1.5rem;--shadow-sm:0 1px 2px 0 rgba(0,0,0,.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -2px rgba(0,0,0,.1);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -4px rgba(0,0,0,.1);--shadow-xl:0 20px 25px -5px rgba(0,0,0,.1),0 8px 10px -6px rgba(0,0,0,.1);--transition-fast:150ms ease-in-out;--transition-base:200ms ease-in-out;--transition-slow:300ms ease-in-out}.btn-primary{background-color:var(--color-primary);color:#fff;padding:.625rem 1rem;border-radius:var(--radius-lg);font-weight:500;transition:background-color var(--transition-base)}.btn-primary:hover{background-color:var(--color-primary-hover)}.card{background-color:#fff;border-radius:var(--radius-xl);border:1px solid var(--color-gray-200);padding:1.5rem;box-shadow:var(--shadow-sm);transition:box-shadow var(--transition-base)}.card:hover{box-shadow:var(--shadow-md)}@keyframes shimmer{0%{background-position:-1000px 0}to{background-position:1000px 0}}.animate-pulse{animation:shimmer 2s linear infinite;background:linear-gradient(90deg,#f3f4f6 0,#e5e7eb 20%,#f3f4f6 40%,#f3f4f6);background-size:2000px 100%}