/* StackCart — Premium Digital Storefront Theme */

:root {
  --bg: #FAFAF8;
  --bg-alt: #F2F0EC;
  --fg: #1A1A1A;
  --fg-muted: #6B6B6B;
  --accent: #D97706;
  --accent-warm: #FEF3C7;
  --surface: #FFFFFF;
  --border: #E5E2DC;
}

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

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--fg);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  padding: 20px 48px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
}
.nav-logo {
  font-family: 'DM Serif Display', serif;
  font-size: 20px;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.3px;
}
.nav-tagline {
  font-size: 13px;
  color: var(--fg-muted);
  border-left: 1px solid var(--border);
  padding-left: 16px;
}

/* HERO */
.hero {
  padding: 80px 48px 96px;
  position: relative;
  overflow: hidden;
}
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-eyebrow {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.hero-headline {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--fg);
  margin-bottom: 24px;
}
.hero-lede {
  font-size: 17px;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 460px;
}
.hero-visual {
  display: flex;
  justify-content: flex-end;
}
.hero-bg-shape {
  position: absolute;
  right: -120px;
  top: 50%;
  transform: translateY(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #FEF3C7 0%, transparent 70%);
  pointer-events: none;
}

/* PRODUCT CARD STACK */
.product-card-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
  filter: drop-shadow(0 20px 60px rgba(0,0,0,0.08));
}
.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform 0.2s ease;
}
.product-card:hover { transform: translateX(-4px); }
.card-1 { transform: translateX(0); }
.card-2 { transform: translateX(12px); }
.card-3 { transform: translateX(24px); }
.card-tag {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--accent-warm);
  color: #92400E;
  padding: 4px 10px;
  border-radius: 100px;
  white-space: nowrap;
}
.card-title {
  flex: 1;
  font-size: 15px;
  font-weight: 500;
  color: var(--fg);
}
.card-price {
  font-family: 'DM Serif Display', serif;
  font-size: 18px;
  color: var(--fg);
}

/* STATS */
.stats {
  padding: 40px 48px;
  background: var(--fg);
}
.stats-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0;
}
.stat {
  flex: 1;
  text-align: center;
  padding: 12px 32px;
}
.stat-number {
  font-family: 'DM Serif Display', serif;
  font-size: 40px;
  color: #FFFFFF;
  letter-spacing: -1px;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  line-height: 1.4;
}
.stat-divider {
  width: 1px;
  height: 60px;
  background: rgba(255,255,255,0.15);
  flex-shrink: 0;
}

/* FEATURES */
.features {
  padding: 96px 48px;
}
.features-header {
  max-width: 1100px;
  margin: 0 auto 64px;
}
.features-title {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(32px, 4vw, 48px);
  letter-spacing: -1px;
  color: var(--fg);
  margin-bottom: 16px;
}
.features-subtitle {
  font-size: 18px;
  color: var(--fg-muted);
}
.features-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}
.feature {
  background: var(--surface);
  padding: 40px 36px;
}
.feature-icon {
  color: var(--accent);
  margin-bottom: 20px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-warm);
  border-radius: 10px;
}
.feature-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 10px;
}
.feature-desc {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* CATEGORIES */
.categories {
  padding: 80px 48px;
  background: var(--bg-alt);
}
.categories-title {
  font-family: 'DM Serif Display', serif;
  font-size: 36px;
  letter-spacing: -0.8px;
  color: var(--fg);
  margin-bottom: 48px;
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}
.categories-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.category-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px 32px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.category-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.06);
}
.cat-icon {
  color: var(--fg);
  margin-bottom: 20px;
}
.cat-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 12px;
}
.cat-desc {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* MANIFESTO */
.manifesto {
  padding: 96px 48px;
  background: var(--fg);
}
.manifesto-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}
.manifesto-quote {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.4;
  letter-spacing: -0.5px;
  color: #FFFFFF;
  font-style: italic;
  margin-bottom: 32px;
}
.manifesto-body {
  font-size: 16px;
  color: rgba(255,255,255,0.55);
  line-height: 1.8;
}

/* FOOTER */
.footer {
  padding: 40px 48px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-logo {
  font-family: 'DM Serif Display', serif;
  font-size: 18px;
  color: var(--fg);
  margin-bottom: 4px;
}
.footer-desc {
  font-size: 13px;
  color: var(--fg-muted);
}
.footer-links {
  font-size: 13px;
  color: var(--fg-muted);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .nav { padding: 16px 24px; }
  .nav-tagline { display: none; }
  .hero { padding: 56px 24px 72px; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { display: none; }
  .stats { padding: 32px 24px; }
  .stats-inner { flex-direction: column; gap: 24px; }
  .stat-divider { width: 60px; height: 1px; }
  .features { padding: 64px 24px; }
  .features-grid { grid-template-columns: 1fr; }
  .categories { padding: 64px 24px; }
  .categories-grid { grid-template-columns: 1fr; }
  .manifesto { padding: 64px 24px; }
  .footer { padding: 32px 24px; }
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
}