:root{color:#111827;background:#f7f7f7;font-family:Arial,Helvetica,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{color:#111827;background:#f7f7f7}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}#root,.app-shell{min-height:100vh}header nav{width:min(1100px,100% - 2rem);margin:0 auto;padding:1rem 0}.brand{font-size:1.1rem;font-weight:700}.page{width:min(1100px,100% - 2rem);margin:0 auto;padding:1rem 0 2rem}main{padding-bottom:2rem}h1,h2,h3,p{margin-top:0}form{gap:1rem;display:grid}.card,section{background:#fff;border:1px solid #d1d5db;border-radius:10px;gap:1rem;padding:1rem;display:grid}.row{grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;display:grid}label{gap:.35rem;font-weight:600;display:grid}input,select,textarea{color:#111827;background:#fff;border:1px solid #cbd5e1;border-radius:8px;width:100%;padding:.75rem .85rem}button,[type=submit]{color:#fff;background:#111827;border:1px solid #111827;border-radius:8px;padding:.75rem 1rem}button:disabled{opacity:.6;cursor:not-allowed}.actions,.list,.seat-grid{gap:.75rem;display:grid}.actions{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));align-items:start}.muted{color:#6b7280}.error{color:#b91c1c}.seat-grid{grid-template-columns:repeat(auto-fit,minmax(48px,1fr))}.seat-button{color:#111827;background:#fff;border:1px solid #cbd5e1;border-radius:8px;min-height:48px}.seat-button.selected{color:#fff;background:#111827;border-color:#111827}.seat-button.booked{color:#6b7280;background:#e5e7eb}@media (width<=768px){header nav,.page{width:min(100% - 1rem,1100px)}.row,.actions{grid-template-columns:1fr}button,[type=submit]{width:100%}}