:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--tg-theme-text-color, #111827);
  background: var(--tg-theme-bg-color, #f5f7fb);
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: var(--tg-theme-bg-color, #f5f7fb); }
button, input { font: inherit; }
.wrap { max-width: 760px; margin: 0 auto; padding: 20px 16px 40px; }
.hero { margin: 8px 0 18px; }
h1 { margin: 4px 0 6px; font-size: 30px; letter-spacing: -0.03em; }
h2 { margin-top: 8px; }
.eyebrow { font-size: 12px; font-weight: 800; letter-spacing: .12em; opacity: .62; }
.muted, .hint { color: var(--tg-theme-hint-color, #667085); }
.hint { font-size: 12px; }
.grid { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
.card, .panel {
  background: var(--tg-theme-secondary-bg-color, #fff);
  border: 1px solid rgba(127,127,127,.15);
  border-radius: 18px;
  box-shadow: 0 8px 28px rgba(15,23,42,.06);
}
.card { padding: 18px; display:flex; flex-direction:column; gap:10px; }
.card h3 { margin: 0; font-size: 19px; }
.card p { margin:0; min-height: 38px; }
.price { font-size: 24px; font-weight: 800; }
.panel { padding: 20px; }
.primary, .secondary, .back, .qty button { border: 0; border-radius: 12px; cursor:pointer; }
.primary {
  width:100%; padding: 14px 16px; background: var(--tg-theme-button-color, #2481cc);
  color: var(--tg-theme-button-text-color, #fff); font-weight: 800;
}
.primary:disabled { opacity:.55; cursor:not-allowed; }
.secondary { padding: 8px 12px; background: rgba(127,127,127,.12); color: inherit; }
.back { background: transparent; color: var(--tg-theme-link-color, #2481cc); padding: 4px 0 10px; }
.summary { padding: 14px; background: rgba(127,127,127,.08); border-radius: 12px; margin-bottom:16px; }
label { display:block; font-weight:700; margin: 16px 0; }
label input[type=file] { display:block; width:100%; margin-top:8px; padding: 12px; background:rgba(127,127,127,.06); border-radius:12px; }
.qty { display:flex; gap:8px; align-items:center; margin-top:8px; }
.qty button { width:42px; height:42px; font-size:22px; }
.qty input { width:74px; height:42px; text-align:center; border:1px solid rgba(127,127,127,.25); border-radius:10px; background:transparent; color:inherit; }
.payment { padding:16px; border-radius:14px; background:rgba(36,129,204,.08); margin:18px 0; overflow-wrap:anywhere; }
.payment-row { margin-top:8px; display:grid; grid-template-columns:1fr auto; gap:5px 10px; align-items:center; }
.payment-row span { grid-column:1/-1; font-size:13px; opacity:.7; }
.payment-row strong { font-size:19px; }
.alert { padding: 12px 14px; margin-bottom:14px; border-radius:12px; background:#fee2e2; color:#991b1b; }
.hidden { display:none !important; }
.success-icon { width:52px; height:52px; display:grid; place-items:center; border-radius:50%; background:#dcfce7; color:#166534; font-size:28px; font-weight:900; }
@media (max-width:540px) { .grid { grid-template-columns:1fr; } h1 { font-size:26px; } }