:root {
  --bg: #f4f1ea;
  --card: #ffffff;
  --text: #1a1a1a;
  --muted: #6b655c;
  --accent: #c53625;
  --header-bg: #141414;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.store-header {
  background: var(--header-bg);
  padding: 14px 0;
  display: flex;
  justify-content: center;
}

.store-logo {
  height: 64px;
  width: auto;
}

.wrap {
  max-width: 480px;
  margin: 0 auto;
  padding: 24px 18px 40px;
  width: 100%;
}

.product-shot {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
  background: var(--card);
}

.product-name {
  color: var(--accent);
  font-size: 26px;
  font-weight: 800;
  text-align: center;
  margin: 18px 0 8px;
}

.product-desc {
  text-align: center;
  color: var(--text);
  font-size: 15px;
  margin: 0 0 16px;
  line-height: 1.4;
}

.price {
  text-align: center;
  margin: 0 0 22px;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 10px;
}

.price-regular {
  color: var(--muted);
  font-size: 18px;
  text-decoration: line-through;
}

.price-promo {
  color: var(--accent);
  font-size: 28px;
  font-weight: 800;
}

.addon-note {
  font-weight: 400;
  color: var(--muted);
  font-size: 12px;
}

.addons {
  margin-bottom: 20px;
}

.addon-label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--text);
}

.addon-select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 6px;
  border: 1px solid #d8d2c6;
  background: var(--card);
  color: var(--text);
  font-size: 15px;
}

.addon-checks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 12px;
  font-size: 14px;
  color: var(--text);
}

.addon-checks label {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cta {
  display: block;
  width: 100%;
  padding: 16px;
  border: none;
  border-radius: 6px;
  background: var(--accent);
  color: #ffffff;
  font-size: 17px;
  font-weight: 700;
  text-align: center;
  cursor: pointer;
  transition: opacity 0.08s ease;
}

.cta:active { opacity: 0.85; }
.cta[disabled] { opacity: 0.6; cursor: default; }

.error-box {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 6px;
  background: #fbe4e1;
  color: #8a1f10;
  font-size: 14px;
  display: none;
  text-align: center;
}

.center-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px;
}

.center-page h1 { font-size: 26px; color: var(--accent); }
.center-page p { color: var(--muted); max-width: 360px; }