/* Product Page — Professional product landing layout */

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; padding: 0; -webkit-font-smoothing: antialiased; }
a { color: inherit; }

:root {
  --prod-font-heading: 'DM Sans', -apple-system, sans-serif;
  --prod-font-body: 'Inter', -apple-system, sans-serif;
  --prod-bg: #ffffff;
  --prod-bg-alt: #f8fafc;
  --prod-text: #0f172a;
  --prod-text-muted: #64748b;
  --prod-primary: #2563eb;
  --prod-border: #e2e8f0;
  --prod-radius: 12px;
}

.product-page {
  font-family: var(--prod-font-body);
  background: var(--prod-bg);
  color: var(--prod-text);
  min-height: 100vh;
}

/* Product Nav — minimal, product-focused */
.product-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--prod-border);
}

.product-nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.product-nav-brand {
  font-family: var(--prod-font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--prod-text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.product-nav-brand:hover { color: var(--prod-primary); }

.product-nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.product-nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--prod-text-muted);
  text-decoration: none;
}

.product-nav-links a:hover { color: var(--prod-primary); }

.product-nav-cta {
  background: var(--prod-primary);
  color: #fff !important;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-weight: 600;
}

.product-nav-cta:hover { background: #1d4ed8; }

.product-nav-back {
  font-size: 0.85rem;
  color: var(--prod-text-muted);
}

/* Product Hero — clean, light */
.product-hero {
  padding: 6rem 1.5rem 4rem;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.product-hero-title {
  font-family: var(--prod-font-heading);
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--prod-text);
  margin: 0 0 0.75rem 0;
}

.product-hero-tagline {
  font-size: 1.15rem;
  color: var(--prod-text-muted);
  line-height: 1.6;
  margin: 0 0 1.5rem 0;
}

.product-hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--prod-primary);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: background 0.2s;
}

.product-hero-cta:hover { background: #1d4ed8; color: #fff; }

.product-hero-img {
  margin-top: 2.5rem;
  border-radius: var(--prod-radius);
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  max-width: 100%;
  width: 640px;
}

/* Feature Grid */
.product-features {
  max-width: 1120px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.product-features-title {
  font-family: var(--prod-font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 2rem;
}

.product-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.product-feature-card {
  background: var(--prod-bg);
  border: 1px solid var(--prod-border);
  border-radius: var(--prod-radius);
  padding: 1.5rem;
}

.product-feature-card h3 {
  font-family: var(--prod-font-heading);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.5rem 0;
}

.product-feature-card p {
  font-size: 0.9rem;
  color: var(--prod-text-muted);
  line-height: 1.5;
  margin: 0;
}

/* Screenshot Section — alternating */
.product-showcase {
  max-width: 1120px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.product-showcase-item {
  display: flex;
  align-items: center;
  gap: 3rem;
  margin-bottom: 4rem;
}

.product-showcase-item:nth-child(even) { flex-direction: row-reverse; }

.product-showcase-item:last-child { margin-bottom: 0; }

.product-showcase-img {
  flex: 0 1 480px;
  border-radius: var(--prod-radius);
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
  overflow: hidden;
}

.product-showcase-img img { width: 100%; height: auto; display: block; }

.product-showcase-content {
  flex: 1;
  min-width: 0;
}

.product-showcase-content h2 {
  font-family: var(--prod-font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0 0 0.5rem 0;
}

.product-showcase-content p {
  font-size: 0.95rem;
  color: var(--prod-text-muted);
  line-height: 1.6;
  margin: 0;
}

/* Install / CTA Block */
.product-install {
  background: var(--prod-bg-alt);
  border-radius: var(--prod-radius);
  padding: 2rem;
  margin: 2rem 0;
}

.product-install h3 {
  font-family: var(--prod-font-heading);
  font-size: 1.1rem;
  margin: 0 0 1rem 0;
}

.product-install ol, .product-install p {
  margin: 0;
  color: var(--prod-text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.product-install ol { padding-left: 1.25rem; }
.product-install li { margin-bottom: 0.35rem; }

.product-install code {
  background: rgba(0,0,0,0.06);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.88em;
}

/* Product Footer */
.product-footer {
  margin-top: 4rem;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--prod-border);
  text-align: center;
  font-size: 0.9rem;
  color: var(--prod-text-muted);
}

.product-footer a {
  color: var(--prod-text-muted);
  text-decoration: none;
}

.product-footer a:hover { color: var(--prod-primary); }

/* Responsive */
@media (max-width: 768px) {
  .product-nav-inner { flex-wrap: wrap; }
  .product-nav-links { order: 3; width: 100%; }
  .product-showcase-item { flex-direction: column !important; }
  .product-showcase-img { flex: none; width: 100%; max-width: 400px; }
}