:root { color-scheme: light dark; --fondo: #F6F7F9; --tarjeta: #FFFFFF; --texto: #0D1E2B; --tenue: #5B6B7B; --borde: #E3E6EA; --marca: #0D1E2B; --acento: #CBA683; --alerta: #FDF2E1; }
@media (prefers-color-scheme: dark) { :root { --fondo: #0B1822; --tarjeta: #132433; --texto: #E8E2D8; --tenue: #9AA8B6; --borde: #22364A; --alerta: #2B2418; } }
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--fondo); color: var(--texto); font-family: 'Segoe UI', Arial, sans-serif; min-height: 100vh;
  padding: env(safe-area-inset-top, 0) 16px env(safe-area-inset-bottom, 0); display: flex; flex-direction: column; align-items: center; }
.marca { width: 100%; max-width: 440px; margin-top: 16px; background: var(--marca); color: #E8E2D8; border-radius: 12px 12px 0 0;
  padding: 16px 24px; font-weight: 700; font-size: 20px; letter-spacing: .5px; }
.marca span { color: var(--acento); }
main { width: 100%; max-width: 440px; background: var(--tarjeta); border: 1px solid var(--borde); border-top: 0; border-radius: 0 0 12px 12px; padding: 24px; }
h1 { font-size: 20px; margin: 0 0 4px; }
.evento { color: var(--tenue); margin: 0 0 20px; font-size: 14px; }
.qr { background: #FFFFFF; border-radius: 12px; padding: 12px; margin: 0 auto 8px; width: 100%; max-width: 300px; aspect-ratio: 1; }
.qr svg { width: 100%; height: 100%; display: block; }
.vence { text-align: center; color: var(--tenue); font-size: 13px; margin: 0 0 20px; }
dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 12px; margin: 0; font-size: 14px; }
dt { color: var(--tenue); } dd { margin: 0; font-weight: 600; overflow-wrap: anywhere; }
.aviso { background: var(--alerta); border-radius: 8px; padding: 14px 16px; margin: 0; font-size: 15px; line-height: 22px; }
.pie { width: 100%; max-width: 440px; color: var(--tenue); font-size: 12px; text-align: center; margin: 12px 0 24px; }