:root{--background:#fff;--foreground:#171717;--primary:#000;--primary-hover:#333;--secondary:#fff;--secondary-hover:#f5f5f5;--success:#28a745;--danger:#dc3545;--danger-hover:#c82333;--border:#e5e5e5;--card-bg:#fff;--text-muted:#666}@media (prefers-color-scheme:dark){:root{--background:#0a0a0a;--foreground:#ededed;--card-bg:#1a1a1a;--border:#333;--text-muted:#888}}*{box-sizing:border-box;margin:0;padding:0}html,body{max-width:100vw;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;overflow-x:hidden}body{color:var(--foreground);background:var(--background);line-height:1.6}a{color:#000;text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;border:none;border-radius:6px;padding:.75rem 1.5rem;font-family:inherit;font-size:1rem;transition:all .2s}button:disabled{opacity:.6;cursor:not-allowed}.btn-primary{color:#fff;background:#000;font-weight:500}.btn-primary:hover:not(:disabled){background:#333}.btn-secondary{color:#000;background:#fff;border:1px solid #e5e5e5}.btn-secondary:hover:not(:disabled){background:#f5f5f5}.btn-danger{color:#000;background:0 0;padding:.5rem 0;font-weight:400}.btn-danger:hover:not(:disabled){text-decoration:underline}.btn-outline{border:1px solid var(--border);color:var(--foreground);background:0 0}.btn-outline:hover:not(:disabled){background:var(--card-bg)}.btn-small{padding:.5rem 1rem;font-size:.875rem}input,select{border:1px solid var(--border);background:var(--background);color:var(--foreground);border-radius:6px;width:100%;padding:.75rem;font-family:inherit;font-size:1rem}input:focus,select:focus{box-shadow:none;border-color:#000;outline:none}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.card{background:#fff;border:1px solid #e5e5e5;border-radius:8px;padding:1.5rem}.card-section-title{margin-bottom:.25rem;font-size:1rem;font-weight:600}.card-section-subtitle{color:var(--text-muted);margin-bottom:0;font-size:.875rem}.text-muted{color:var(--text-muted)}.text-center{text-align:center}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1{gap:.5rem}.gap-2{gap:1rem}.gap-3{gap:1.5rem}.grid{display:grid}.grid-cols-1{grid-template-columns:repeat(1,1fr)}@media (min-width:640px){.sm-grid-cols-2{grid-template-columns:repeat(2,1fr)}}@media (min-width:1024px){.lg-grid-cols-3{grid-template-columns:repeat(3,1fr)}}