/* Sheet & Stack — plain CSS, no framework */
:root {
  --sage: #5a7a62;
  --sage-dark: #3d5544;
  --sage-light: #e8f0ea;
  --ink: #1a1f1c;
  --muted: #5c665f;
  --bg: #fafbf9;
  --card: #ffffff;
  --border: #d8e0da;
  --accent: #c4783a;
  --radius: 10px;
  --max: 960px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 1.05rem;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--sage-dark); }
a:hover { color: var(--sage); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }

/* Header */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
  flex-wrap: wrap;
}
.logo {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--sage-dark);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.logo span { color: var(--sage); font-weight: 500; }
.nav { display: flex; gap: 1.1rem; flex-wrap: wrap; }
.nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
}
.nav a:hover { color: var(--sage-dark); }

/* Hero */
.hero {
  padding: 2.75rem 0 2rem;
  background: linear-gradient(165deg, var(--sage-light) 0%, var(--bg) 70%);
}
.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.4rem);
  line-height: 1.25;
  margin: 0 0 0.75rem;
  letter-spacing: -0.03em;
}
.hero .lede {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 36rem;
  margin: 0 0 1.5rem;
}
.hero-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.7rem 1.35rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  font-size: 1rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.btn-primary {
  background: var(--sage);
  color: #fff;
}
.btn-primary:hover {
  background: var(--sage-dark);
  color: #fff;
}
.btn-buy {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-buy:hover {
  background: #a8622e;
  color: #fff;
}
.btn-outline {
  background: transparent;
  color: var(--sage-dark);
  border-color: var(--sage);
}
.btn-outline:hover {
  background: var(--sage-light);
  color: var(--sage-dark);
}
.btn-lg { padding: 0.85rem 1.6rem; font-size: 1.05rem; }

/* Sections */
.section { padding: 2.5rem 0; }
.section h2 {
  font-size: clamp(1.4rem, 3vw, 1.75rem);
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}
.section .sub {
  color: var(--muted);
  margin: 0 0 1.75rem;
  max-width: 36rem;
}

/* Product grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.card img { width: 100%; aspect-ratio: 5/4; object-fit: cover; background: var(--sage-light); }
.card-body { padding: 1.15rem 1.25rem 1.35rem; flex: 1; display: flex; flex-direction: column; }
.card-body h3 {
  margin: 0 0 0.4rem;
  font-size: 1.1rem;
}
.card-body h3 a { text-decoration: none; color: var(--ink); }
.card-body h3 a:hover { color: var(--sage); }
.card-body p {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0 0 1rem;
  flex: 1;
}
.price {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--sage-dark);
  margin-bottom: 0.75rem;
}
.card-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* Product page */
.product-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
  padding: 2rem 0;
}
.product-gallery { display: flex; flex-direction: column; gap: 0.75rem; }
.product-gallery img {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
}
.product-info h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}
.product-info .price { font-size: 1.5rem; margin: 0.5rem 0 1rem; }
.product-info .meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.checklist {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
}
.checklist li {
  padding: 0.35rem 0 0.35rem 1.5rem;
  position: relative;
}
.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--sage);
  font-weight: 700;
}
.sticky-buy {
  position: sticky;
  top: 4.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-top: 1rem;
}
.sticky-buy .btn { width: 100%; text-align: center; }

/* Article */
.article { padding: 2rem 0 3rem; max-width: 720px; }
.article header { margin-bottom: 1.75rem; }
.article .eyebrow {
  color: var(--sage);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 0.5rem;
}
.article h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.15rem);
  line-height: 1.25;
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}
.article .byline {
  color: var(--muted);
  font-size: 0.9rem;
}
.article h2 {
  font-size: 1.35rem;
  margin: 2rem 0 0.75rem;
  letter-spacing: -0.01em;
}
.article h3 {
  font-size: 1.1rem;
  margin: 1.5rem 0 0.5rem;
}
.article p, .article li { color: #2a312c; }
.article ul, .article ol { padding-left: 1.25rem; }
.article li { margin-bottom: 0.4rem; }
.prompt-box {
  background: var(--sage-light);
  border-left: 4px solid var(--sage);
  padding: 1rem 1.15rem;
  margin: 1rem 0;
  border-radius: 0 8px 8px 0;
  font-size: 0.95rem;
}
.prompt-box strong { display: block; margin-bottom: 0.35rem; color: var(--sage-dark); }
.cta-box {
  background: var(--card);
  border: 2px solid var(--sage);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 2rem 0;
  text-align: center;
}
.cta-box h3 { margin: 0 0 0.5rem; }
.cta-box p { color: var(--muted); margin: 0 0 1rem; }
.compare {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.95rem;
}
.compare th, .compare td {
  border: 1px solid var(--border);
  padding: 0.65rem 0.85rem;
  text-align: left;
}
.compare th { background: var(--sage-light); }

/* Blog list */
.blog-list { display: flex; flex-direction: column; gap: 1rem; }
.blog-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
}
.blog-item h3 { margin: 0 0 0.35rem; font-size: 1.1rem; }
.blog-item h3 a { text-decoration: none; color: var(--ink); }
.blog-item h3 a:hover { color: var(--sage); }
.blog-item p { margin: 0; color: var(--muted); font-size: 0.95rem; }

/* Footer */
.site-footer {
  background: var(--ink);
  color: #c5cdc7;
  padding: 2rem 0;
  margin-top: 2rem;
  font-size: 0.9rem;
}
.site-footer a { color: #e8f0ea; }
.site-footer .inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.site-footer .brand { font-weight: 600; color: #fff; margin-bottom: 0.35rem; }

/* Breadcrumb */
.breadcrumb {
  font-size: 0.85rem;
  color: var(--muted);
  padding: 1rem 0 0;
}
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--sage); }

@media (max-width: 720px) {
  .product-hero { grid-template-columns: 1fr; }
  .sticky-buy { position: static; }
  .nav { width: 100%; }
}