/* ===== Google Sans (via Google Fonts API) ===== */
@import url('https://fonts.googleapis.com/css2?family=Google+Sans:wght@300;400;500&display=swap');

/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Google Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: #111;
  background: #fff;
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ===== Background Hero ===== */
.hero-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-bg--flipped {
  transform: rotate(180deg);
}

/* ===== Homepage ===== */
.home-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.home-overlay {
  background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.55) 40%, rgba(0,0,0,0.85) 100%);
  padding: 80px 40px 60px;
  color: #fff;
}

.home-title {
  font-size: clamp(3rem, 10vw, 7rem);
  font-weight: 300;
  text-transform: lowercase;
  margin-bottom: 12px;
  line-height: 1;
  letter-spacing: 0.02em;
}

.home-tagline {
  font-size: clamp(0.85rem, 2vw, 1rem);
  opacity: 0.7;
  margin-bottom: 48px;
  letter-spacing: 0.06em;
}

/* Product nav */
.product-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 32px;
  margin-bottom: 56px;
  letter-spacing: 0.04em;
}

.product-nav a {
  font-size: clamp(0.8rem, 2vw, 0.95rem);
  opacity: 0.85;
  border-bottom: 1px solid rgba(255,255,255,0.35);
  padding-bottom: 2px;
  transition: opacity 0.2s, border-color 0.2s;
}

.product-nav a:hover {
  opacity: 1;
  border-color: #fff;
}

/* Footer */
.site-footer {
  font-size: 0.8rem;
  opacity: 0.55;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  align-items: center;
}

.site-footer a {
  opacity: 0.9;
  border-bottom: 1px solid rgba(255,255,255,0.3);
  transition: opacity 0.2s;
}

.site-footer a:hover {
  opacity: 1;
}

/* ===== Inner Pages (About / Product Detail) ===== */
.inner-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Top overlay covers whole inner page with white gradient */
.inner-overlay {
  flex: 1;
  background: linear-gradient(to bottom, rgba(255,255,255,0.0) 0%, rgba(255,255,255,0.5) 48%, rgba(255,255,255,0.95) 68%, #fff 82%);
  display: flex;
  flex-direction: column;
}

/* Top nav bar */
.top-nav {
  padding: 28px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.top-nav .nav-logo {
  font-size: 1.1rem;
  text-transform: lowercase;
  font-weight: 400;
  color: #fff;
  transition: opacity 0.2s;
}

.top-nav .nav-logo:hover {
  opacity: 0.7;
}

/* once the scroll hits the white area the logo becomes dark — handled via class */
.top-nav.dark .nav-logo {
  color: #111;
}

.top-nav .nav-links {
  display: flex;
  gap: 24px;
  font-size: 0.8rem;
  color: #fff;
}

.top-nav.dark .nav-links {
  color: #111;
}

.top-nav .nav-links a {
  opacity: 0.75;
  transition: opacity 0.2s;
}

.top-nav .nav-links a:hover {
  opacity: 1;
}

/* Hero banner on inner pages */
.inner-hero {
  padding: 40px 48px 60px;
  min-height: 40vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.inner-hero-label {
  font-size: 0.75rem;
  opacity: 0.5;
  margin-bottom: 12px;
  letter-spacing: 0.08em;
}

.inner-hero-title {
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 300;
  line-height: 1.1;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.inner-hero-subtitle {
  font-size: clamp(0.9rem, 2vw, 1.05rem);
  opacity: 0.6;
  max-width: 540px;
}

/* Content area */
.content-area {
  background: #fff;
  padding: 64px 48px;
  flex: 1;
}

.content-area h2 {
  font-size: 1.4rem;
  font-weight: 400;
  margin-bottom: 20px;
  margin-top: 12px;
  letter-spacing: 0.03em;
}

.content-area h2:first-child {
  margin-top: 0;
}

.content-area p {
  font-size: 1rem;
  color: #333;
  max-width: 680px;
  margin-bottom: 20px;
}

.content-area ul {
  max-width: 680px;
  padding-left: 1.4em;
  margin-bottom: 20px;
  color: #333;
}

.content-area ul li {
  margin-bottom: 8px;
}

.content-area .cta-link {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.85rem;
  text-transform: none;
  border-bottom: 1px solid #999;
  padding-bottom: 2px;
  color: #555;
  transition: color 0.2s, border-color 0.2s;
}

.content-area .cta-link:hover {
  color: #111;
  border-color: #111;
}

/* Products list */
.product-list {
  display: flex;
  flex-direction: column;
  gap: 48px;
  max-width: 680px;
}

.product-item {
  border-top: 1px solid #e8e8e8;
  padding-top: 32px;
}

.product-tag {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.product-tag span {
  font-size: 0.68rem;
  color: #666;
  background: #f0f0f0;
  border-radius: 99px;
  padding: 2px 10px;
  line-height: 1.6;
}

.product-name {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 300;
  margin-bottom: 12px;
  margin-top: 0;
  letter-spacing: 0.02em;
}

.product-desc {
  font-size: 1rem;
  color: #444;
  margin-bottom: 16px;
}

/* Inner page footer */
.inner-footer {
  background: #fff;
  border-top: 1px solid #e8e8e8;
  padding: 28px 48px;
  font-size: 0.78rem;
  color: #888;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  align-items: center;
}

.inner-footer a {
  color: #555;
  border-bottom: 1px solid #ccc;
  transition: color 0.2s;
}

.inner-footer a:hover {
  color: #111;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .home-overlay {
    padding: 60px 24px 48px;
  }

  .product-nav {
    gap: 6px 20px;
    margin-bottom: 40px;
  }

  .top-nav {
    padding: 20px 24px;
  }

  .inner-hero {
    padding: 28px 24px 40px;
    min-height: 32vh;
  }

  .content-area {
    padding: 40px 24px;
  }

  .inner-footer {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .home-overlay {
    padding: 48px 20px 36px;
  }

  .top-nav .nav-links {
    gap: 14px;
    font-size: 0.72rem;
  }
}