* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --green: #1a5c2a;
  --green-light: #2d8a46;
  --green-dark: #0f3d1a;
  --cream: #f5f1e8;
  --gold: #c5a55a;
  --text: #1a1a1a;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: var(--cream);
  line-height: 1.6;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Hero */
.hero {
  background: var(--green-dark);
  color: #fff;
  text-align: center;
}

.hero-img {
  width: 100%;
  overflow: hidden;
}

.hero-img img {
  width: 100%;
  display: block;
  object-fit: cover;
  max-height: 480px;
}

.hero .container {
  padding: 36px 20px 40px;
}

.hero h1 {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 12px;
}

.hero h1 span {
  color: var(--gold);
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.85;
  max-width: 500px;
  margin: 0 auto;
}

/* Product */
.product {
  padding: 48px 20px;
  text-align: center;
}

.product h2 {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.product .product-desc {
  color: #666;
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.product .price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 24px;
}

.stamp-img {
  width: 180px;
  margin: 0 auto 24px;
  display: block;
}

.upsell {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 16px 20px;
  max-width: 360px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: border-color 0.15s;
}

.upsell:hover {
  border-color: var(--green);
}

.upsell input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--green);
  cursor: pointer;
}

.upsell .upsell-text {
  text-align: left;
  flex: 1;
}

.upsell .upsell-text strong {
  display: block;
}

.upsell .upsell-text span {
  font-size: 0.85rem;
  color: #666;
}

.buy-btn {
  display: inline-block;
  background: var(--green);
  color: #fff;
  font-size: 1.2rem;
  font-weight: 700;
  padding: 16px 48px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s;
  letter-spacing: 0.01em;
}

.buy-btn:hover {
  background: var(--green-light);
}

.buy-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Explainer */
.explainer {
  background: #fff;
  padding: 48px 20px;
  text-align: center;
}

.explainer h2 {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.explainer p {
  max-width: 560px;
  margin: 0 auto 12px;
  color: #444;
}

/* Made in USA */
.usa {
  background: var(--green-dark);
  color: #fff;
  text-align: center;
  padding: 32px 20px;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* Footer */
footer {
  text-align: center;
  padding: 24px 20px;
  font-size: 0.85rem;
  color: #888;
}

footer a {
  color: var(--green);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* FAQ page */
.faq {
  padding: 48px 20px;
}

.faq h1 {
  font-size: 2rem;
  margin-bottom: 32px;
  text-align: center;
}

.faq h2 {
  font-size: 1.2rem;
  margin: 28px 0 8px;
  color: var(--green-dark);
}

.faq p, .faq ul {
  color: #444;
  margin-bottom: 12px;
}

.faq ul {
  padding-left: 20px;
}

.faq a {
  color: var(--green);
}

.back-link {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--green);
  text-decoration: none;
  font-size: 0.9rem;
}

/* Success page */
.success {
  text-align: center;
  padding: 80px 20px;
  min-height: 60vh;
}

.success h1 {
  font-size: 2rem;
  margin-bottom: 16px;
  color: var(--green-dark);
}

.success p {
  color: #444;
  max-width: 480px;
  margin: 0 auto 12px;
}

@media (max-width: 500px) {
  .hero h1 { font-size: 1.8rem; }
  .mockup-inner { flex-direction: column; gap: 16px; }
  .mockup-text { text-align: center; }
  .product h2 { font-size: 1.4rem; }
  .stamp-img { width: 140px; }
}