:root { --teal: #0a8fa0; --ink: #222; --muted: #666; --line: #ddd; --bg: #fff; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: Lora, Georgia, serif; font-size: 17px; line-height: 1.45; }
h1, h2, h3 { font-family: Acme, 'Trebuchet MS', sans-serif; font-weight: 400; color: var(--teal); margin: 0 0 .5rem; }
h1 { font-size: 2rem; }
.top { text-align: center; padding: 12px 16px 4px; }
.logo { max-width: 220px; height: auto; }
.wrap { max-width: 520px; margin: 0 auto; padding: 8px 16px 40px; }
.foot { text-align: center; color: var(--muted); font-size: 12px; padding: 16px; }
.flash { background: #fff4e5; border: 1px solid #f0c48a; border-radius: 8px; padding: 10px 12px; margin-bottom: 12px; }
.note { color: var(--muted); font-size: .95rem; }
.stack > * { display: block; width: 100%; margin-bottom: 12px; }
label { font-weight: 600; }
label input:not([type="radio"]):not([type="checkbox"]) { display: block; width: 100%; margin-top: 4px; font: inherit; padding: 12px; border: 1px solid var(--line); border-radius: 8px; }
.btn { display: block; width: 100%; text-align: center; background: var(--teal); color: #fff; border: 0; border-radius: 10px; padding: 14px; font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; }
.btn.secondary { background: #fff; color: var(--teal); border: 2px solid var(--teal); }
.btn[disabled] { opacity: .5; cursor: default; }
.btn.choice { margin-bottom: 8px; }
.link { background: none; border: 0; color: var(--teal); text-decoration: underline; font: inherit; padding: 0; cursor: pointer; }
.inline { display: inline; }
.days { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 6px; margin-bottom: 12px; }
.days a { flex: 0 0 auto; text-align: center; padding: 8px 10px; border: 1px solid var(--line); border-radius: 10px; color: var(--ink); text-decoration: none; min-width: 64px; }
.days a.on { background: var(--teal); color: #fff; border-color: var(--teal); }
.sessions { list-style: none; padding: 0; margin: 0; }
.sessions li { margin-bottom: 8px; }
.sessions a, .sessions .full { display: flex; justify-content: space-between; align-items: center; padding: 14px; border: 1px solid var(--line); border-radius: 10px; text-decoration: none; color: var(--ink); }
.sessions .full { color: var(--muted); background: #f6f6f6; }
.sessions .announce { display:flex; justify-content:space-between; align-items:center; padding:14px; border:1px solid #f0e0a8; border-radius:10px; background:#fff8e1; color:#5a4a1a; }
.sessions .time { font-weight: 600; }
.sessions .left { color: #b3541e; font-size: .9rem; }
.qty { display: flex; gap: 8px; margin-bottom: 16px; }
.qty label { flex: 1; }
.qty input { position: absolute; opacity: 0; }
.qty span { display: block; text-align: center; padding: 12px 0; border: 2px solid var(--line); border-radius: 10px; font-weight: 600; }
.qty input:checked + span { border-color: var(--teal); background: var(--teal); color: #fff; }
.opts > label { display: flex; gap: 10px; align-items: flex-start; padding: 12px; border: 1px solid var(--line); border-radius: 10px; margin-bottom: 8px; font-weight: 400; }
.opts > label input[type="radio"], .opts > label input[type="checkbox"] { flex: 0 0 auto; width: auto; margin: 4px 8px 0 0; }
.opts input { margin-top: 4px; }
.opts .price { margin-left: auto; font-weight: 600; white-space: nowrap; }
.opts .dis { opacity: .55; }
.opts .desc { display: block; color: var(--muted); margin-top: 2px; }
.opts .card-fields label { display: block; }
.opts .card-fields .row { display: flex; gap: 8px; }
.check { display: flex; gap: 8px; align-items: center; font-weight: 400; margin-bottom: 12px; }
.check input { width: auto; }
.total { font-family: Acme, sans-serif; font-size: 1.5rem; color: var(--teal); margin: 12px 0; }
.summary { border: 1px solid var(--line); border-radius: 10px; padding: 12px; margin-bottom: 16px; }
.summary p { margin: 4px 0; }
.card-fields { display: none; }
.card-fields.on { display: block; }
.row { display: flex; gap: 8px; }
.row label { flex: 1; }

/* Transition loader: app.js unhides #loading on a data-loading tap, then adds .on to fade it in. */
.loading { position: fixed; inset: 0; background: rgba(255, 255, 255, .88); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; z-index: 50; opacity: 0; transition: opacity .2s; }
.loading.on { opacity: 1; }
.loading[hidden] { display: none; }
.spinner { width: 48px; height: 48px; border: 4px solid var(--line); border-top-color: var(--teal); border-radius: 50%; animation: spin .8s linear infinite; }
#loading-msg { font-family: Acme, 'Trebuchet MS', sans-serif; font-size: 1.2rem; color: var(--teal); margin: 0; text-align: center; padding: 0 16px; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation: none; } }

body.admin .wrap { max-width: 1100px; }
.tabs { display: flex; gap: 8px; margin-bottom: 12px; }
.tabs a { padding: 8px 14px; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; color: var(--ink); font-weight: 600; }
.tabs a.on { background: var(--teal); color: #fff; border-color: var(--teal); }
.admin .filters { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; margin-bottom: 14px; }
.admin .filters label { font-size: .85rem; font-weight: 600; }
.admin .filters input { display: block; margin-top: 2px; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; font: inherit; font-size: .9rem; }
.admin .filters button { align-self: end; }
.admin table { width: 100%; border-collapse: collapse; font-size: 14px; }
.admin th, .admin td { padding: 6px 8px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.admin tbody tr:nth-child(even) { background: #f7f7f7; }
.admin td.num { text-align: right; }
.admin .muted { color: var(--muted); }
.admin .flag { color: #b3541e; font-weight: 600; }
.admin .scroll { overflow-x: auto; }
.admin pre { margin: 0; font-size: 12px; white-space: pre-wrap; }