:root {
  --bg: #0d1b22;
  --panel: #101f27;
  --text: #e8f1f2;
  --muted: #b7c7cc;
  --accent: #69b36b;
  --accent-2: #f0c24b;
  --link: #9ed0ff;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: linear-gradient(180deg, var(--bg) 0%, #142830 100%);
  line-height: 1.6;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(13, 27, 34, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; }
.brand-logo { width: 36px; height: 36px; }
.brand-logo.small { width: 28px; height: 28px; }
.brand-name { font-weight: 700; letter-spacing: 0.2px; }
.nav { display: flex; gap: 18px; align-items: center; }
.nav a { color: var(--text); text-decoration: none; opacity: 0.9; }
.nav a:hover { opacity: 1; color: white; }
.nav .btn.buy { padding: 8px 14px; border: 1px solid rgba(255,255,255,0.2); border-radius: 8px; }

.hero { padding: 48px 0 24px; }
.hero-inner { display: grid; gap: 24px; grid-template-columns: 1.1fr 1fr; align-items: center; }
.hero-copy h1 { margin: 0 0 8px; font-size: 36px; line-height: 1.2; }
.tag { margin: 0 0 10px; color: var(--accent-2); font-weight: 600; }
.lede { color: var(--muted); }
.cta-row { margin: 18px 0; display: flex; gap: 12px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 18px; border-radius: 10px; text-decoration: none; color: var(--text); border: 1px solid rgba(255,255,255,0.16); background: transparent; cursor: pointer; }
.btn.primary { background: linear-gradient(180deg, #69b36b, #4f9851); color: #06250a; border: none; font-weight: 700; }
.btn.ghost:hover { background: rgba(255,255,255,0.06); }
.evidence { font-size: 14px; color: var(--muted); }
.evidence a { color: var(--link); }
.hero-media img { width: 100%; border-radius: 14px; box-shadow: 0 10px 30px rgba(0,0,0,0.35); }

.features { padding: 40px 0; }
.features h2, .sizing h2, .faq h2 { margin-top: 0; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: var(--panel); border: 1px solid rgba(255,255,255,0.06); padding: 14px; border-radius: 14px; display: flex; flex-direction: column; }
.card img { width: 100%; height: 200px; object-fit: cover; border-radius: 10px; margin-bottom: 8px; }

.learn-more { padding: 40px 0; background: var(--panel); border-top: 1px solid rgba(255,255,255,0.06); border-bottom: 1px solid rgba(255,255,255,0.06); }
.learn-more .intro { color: var(--muted); margin-bottom: 24px; }
.danger-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 32px; }
.danger-card { background: var(--bg); border: 1px solid rgba(255,255,255,0.08); padding: 16px; border-radius: 12px; }
.danger-card h3 { margin-top: 0; color: var(--accent-2); }
.dangerous-grasses { margin-bottom: 32px; }
.dangerous-grasses h3 { color: var(--text); margin-bottom: 8px; }
.dangerous-grasses > p { color: var(--muted); margin-bottom: 16px; }
.grass-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.grass-card { background: var(--bg); border: 1px solid rgba(255,255,255,0.08); padding: 14px; border-radius: 10px; display: flex; flex-direction: column; }
.grass-info { flex-grow: 1; margin-bottom: 10px; }
.grass-card h4 { margin: 0 0 6px; color: var(--accent-2); font-size: 14px; font-weight: 600; }
.grass-card p { margin: 0; font-size: 13px; color: var(--muted); line-height: 1.4; }
.grass-divider { height: 1px; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent); margin: 8px 0; }
.grass-card img { width: 100%; height: 200px; object-fit: cover; border-radius: 8px; background: rgba(255,255,255,0.03); }
.warning-signs { margin-bottom: 24px; }
.warning-signs h3 { color: var(--text); margin-bottom: 16px; }
.signs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.sign-group { background: var(--bg); border: 1px solid rgba(255,255,255,0.08); padding: 14px; border-radius: 10px; }
.sign-group h4 { margin: 0 0 8px; color: var(--accent); }
.sign-group ul { margin: 0; padding-left: 16px; }
.sign-group li { margin-bottom: 4px; color: var(--muted); }
.expert-sources { font-size: 14px; color: var(--muted); text-align: center; }
.expert-sources a { color: var(--link); }

.sizing { padding: 20px 0 10px; }
.bullets { margin: 10px 0 0; padding-left: 18px; }
.size-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 10px; }
.size-card { background: #0f2027; border: 1px solid rgba(255,255,255,0.08); border-radius: 10px; padding: 10px; display: flex; flex-direction: column; align-items: center; gap: 4px; }
.size-card strong { font-size: 18px; }

.buy { padding: 10px 0 30px; }
.buy-card { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: center; background: var(--panel); border: 1px solid rgba(255,255,255,0.06); border-radius: 14px; padding: 16px; }
.buy-media img { width: 100%; height: 380px; object-fit: cover; object-position: center 20%; border-radius: 10px; }
.buy-copy label { display: block; margin: 10px 0 6px; }
.buy-copy select { width: 100%; padding: 10px; border-radius: 8px; background: #0f2027; color: var(--text); border: 1px solid rgba(255,255,255,0.1); }
.note { margin-top: 8px; font-size: 12px; color: var(--muted); }

.faq { padding: 20px 0 40px; }
.faq details { background: var(--panel); border: 1px solid rgba(255,255,255,0.06); border-radius: 12px; padding: 10px 12px; margin-bottom: 10px; }
.video-explanation { margin-top: 8px; }
.video-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 16px 0; }
.video-container { text-align: center; }
.video-container video { width: 100%; max-width: 300px; border-radius: 8px; background: var(--bg); }
.video-caption { margin: 6px 0 0; font-size: 12px; color: var(--muted); }

.site-footer { border-top: 1px solid rgba(255,255,255,0.06); padding: 16px 0 30px; background: #0e1c23; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.links-col { display: flex; gap: 16px; }
.links-col a { color: var(--muted); text-decoration: none; }
.links-col a:hover { color: var(--text); }
.legal { color: var(--muted); margin-top: 8px; }

@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .buy-card { grid-template-columns: 1fr; }
  .size-grid { grid-template-columns: repeat(2, 1fr); }
  .danger-grid { grid-template-columns: 1fr; }
  .grass-grid { grid-template-columns: repeat(2, 1fr); }
  .signs-grid { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
}

/* Mock checkout modal */
.modal.hidden { display: none; }
.modal { position: fixed; inset: 0; display: grid; place-items: center; background: rgba(0,0,0,0.6); z-index: 100; }
.modal-dialog { width: min(680px, 92vw); background: var(--panel); border: 1px solid rgba(255,255,255,0.08); border-radius: 14px; padding: 16px; }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.modal-body .grid { display: grid; gap: 10px; }
.modal-body input { width: 100%; padding: 10px; border-radius: 8px; background: #0f2027; color: var(--text); border: 1px solid rgba(255,255,255,0.1); }
.modal-body .row { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 10px; }