:root{--accent: #8e2a6b;--accent-ink: #ffffff;--bg: #f3f4f6;--card: #ffffff;--ink: #111827;--muted: #6b7280;--line: #e5e7eb;--radius: 14px;--ok: #16a34a;--err: #dc2626}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:16px;line-height:1.5}.bt-shell{max-width:480px;margin:0 auto;min-height:100vh;background:var(--card)}@media (min-width: 520px){.bt-shell{margin:24px auto;min-height:0;border-radius:18px;overflow:hidden;box-shadow:0 10px 40px -12px #0003}}html.bt-embed,html.bt-embed body{background:transparent}html.bt-embed .bt-shell{max-width:none;min-height:0;margin:0;border-radius:0;box-shadow:none}.bt-header{background:var(--accent);color:var(--accent-ink);padding:20px 20px 18px}.bt-header h1{margin:0;font-size:20px;font-weight:700}.bt-steps{display:flex;gap:6px;margin-top:14px}.bt-steps span{flex:1;height:4px;border-radius:2px;background:#ffffff59}.bt-steps span.on{background:#fff}.bt-body{padding:18px 18px 28px}.bt-h2{font-size:15px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin:4px 0 12px}.bt-list{display:flex;flex-direction:column;gap:10px}.bt-item{display:flex;align-items:center;gap:12px;width:100%;text-align:left;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px;cursor:pointer;font:inherit;color:inherit;transition:border-color .15s,box-shadow .15s}.bt-item:hover{border-color:var(--accent)}.bt-item.sel{border-color:var(--accent);box-shadow:0 0 0 2px color-mix(in srgb,var(--accent) 25%,transparent)}.bt-swatch{width:10px;align-self:stretch;border-radius:6px;flex:none}.bt-item .grow{flex:1;min-width:0}.bt-item .name{font-weight:600}.bt-item .meta{font-size:13px;color:var(--muted)}.bt-item .price{font-weight:700;white-space:nowrap}.bt-chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;margin-bottom:14px}.bt-chip{flex:none;border:1px solid var(--line);background:var(--card);border-radius:999px;padding:8px 14px;font:inherit;font-size:14px;cursor:pointer;color:var(--ink);white-space:nowrap}.bt-chip.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.bt-dates{display:flex;gap:8px;overflow-x:auto;padding-bottom:8px}.bt-date{flex:none;width:56px;text-align:center;border:1px solid var(--line);background:var(--card);border-radius:12px;padding:8px 0;cursor:pointer;font:inherit;color:var(--ink)}.bt-date .dow{font-size:12px;color:var(--muted)}.bt-date .dnum{font-size:18px;font-weight:700}.bt-date.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.bt-date.on .dow{color:#ffffffd9}.bt-slots{display:grid;grid-template-columns:repeat(auto-fill,minmax(84px,1fr));gap:8px;margin-top:16px}.bt-slot{border:1px solid var(--line);background:var(--card);border-radius:10px;padding:10px 0;text-align:center;font:inherit;font-weight:600;cursor:pointer;color:var(--ink)}.bt-slot:hover{border-color:var(--accent)}.bt-empty{text-align:center;color:var(--muted);padding:28px 10px}.bt-field{margin-bottom:12px}.bt-field label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}.bt-field input,.bt-field textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 12px;font:inherit;color:var(--ink);background:#fff}.bt-field input:focus,.bt-field textarea:focus{outline:2px solid var(--accent);border-color:var(--accent)}.bt-row{display:flex;gap:10px}.bt-row .bt-field{flex:1}.bt-btn{width:100%;background:var(--accent);color:var(--accent-ink);border:none;border-radius:12px;padding:14px;font:inherit;font-weight:700;font-size:16px;cursor:pointer;margin-top:8px}.bt-btn:disabled{opacity:.55;cursor:default}.bt-btn.ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}.bt-back{background:none;border:none;color:var(--muted);font:inherit;cursor:pointer;padding:6px 0;margin-bottom:6px}.bt-summary{background:#f9fafb;border:1px solid var(--line);border-radius:var(--radius);padding:14px;margin-bottom:16px}.bt-summary .line{display:flex;justify-content:space-between;padding:4px 0}.bt-summary .line .k{color:var(--muted)}.bt-summary .total{border-top:1px solid var(--line);margin-top:6px;padding-top:8px;font-weight:700}.bt-alert{background:#fef2f2;color:var(--err);border:1px solid #fecaca;border-radius:10px;padding:10px 12px;font-size:14px;margin-bottom:12px}.bt-done{text-align:center;padding:20px 10px}.bt-tick{width:64px;height:64px;border-radius:50%;background:color-mix(in srgb,var(--ok) 14%,#fff);color:var(--ok);display:grid;place-items:center;font-size:34px;margin:8px auto 16px}.bt-footer{text-align:center;font-size:12px;color:var(--muted);padding:14px}.bt-footer a{color:var(--muted)}.bt-center{display:grid;place-items:center;min-height:60vh;color:var(--muted)}