:root{--bg-primary:#fff;--bg-secondary:#f9fafb;--text-primary:#111827;--text-secondary:#4b5563;--border-color:#e5e7eb;--accent-color:#000;--accent-hover:#374151;--error-color:#ef4444;--success-color:#10b981;--font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}@media (prefers-color-scheme:dark){:root{--bg-primary:#111827;--bg-secondary:#1f2937;--text-primary:#f9fafb;--text-secondary:#9ca3af;--border-color:#374151;--accent-color:#fff;--accent-hover:#d1d5db}}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;line-height:1.5}a{color:var(--accent-color);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;background:var(--accent-color);color:var(--bg-primary);border:none;border-radius:4px;padding:.5rem 1rem;font-family:inherit;font-size:.875rem;font-weight:500;transition:background-color .2s}button:hover{background:var(--accent-hover)}button:disabled{opacity:.5;cursor:not-allowed}input,select{border:1px solid var(--border-color);background:var(--bg-primary);color:var(--text-primary);border-radius:4px;width:100%;padding:.5rem;font-family:inherit;font-size:.875rem}input:focus,select:focus{border-color:var(--accent-color);outline:none}.container{max-width:1200px;margin:0 auto;padding:2rem}.card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:8px;margin-bottom:1.5rem;padding:1.5rem}.flex{display:flex}.flex-col{flex-direction:column;display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-2{gap:.5rem}.gap-4{gap:1rem}.mt-4{margin-top:1rem}.mb-4{margin-bottom:1rem}.text-sm{font-size:.875rem}.text-lg{font-size:1.125rem}.text-xl{font-size:1.25rem}.text-2xl{font-size:1.5rem}.font-bold{font-weight:700}.text-secondary{color:var(--text-secondary)}