/* ============================================
   UVONOKAY — Main Stylesheet
   ============================================ */

:root {
  --color-primary: #1a6b3a;
  --color-primary-dark: #134f2b;
  --color-primary-light: #e8f5ee;
  --color-accent: #f97316;
  --color-accent-dark: #ea6c0a;
  --color-text: #1a1a2e;
  --color-text-muted: #6b7280;
  --color-bg: #ffffff;
  --color-bg-soft: #f8fafc;
  --color-border: #e5e7eb;
  --color-amazon: #ff9900;
  --color-amazon-dark: #e68900;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,.1);
  --shadow-lg: 0 10px 30px rgba(0,0,0,.12);
  --max-width: 1200px;
  --transition: 0.2s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  font-size: 16px;
}

img { max-width: 100%; height: auto; display: block; }

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---- HEADER ---- */
.site-header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-primary);
}

.logo-img {
  height: 52px;
  width: auto;
  display: block;
}

.footer-brand .logo-img {
  height: 44px;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.site-nav {
  display: flex;
  gap: 4px;
}

.site-nav a {
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: background var(--transition), color var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.header-cta {
  background: var(--color-amazon);
  color: #111;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 8px 16px;
  border-radius: 6px;
  transition: background var(--transition);
  white-space: nowrap;
}
.header-cta:hover { background: var(--color-amazon-dark); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--color-text);
}

/* ---- HERO ---- */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  padding: 80px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content { position: relative; max-width: 680px; margin: 0 auto; }

.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 100px;
  padding: 4px 14px;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.hero h1 span { color: var(--color-amazon); }

.hero p {
  font-size: 1.1rem;
  opacity: 0.85;
  margin-bottom: 32px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); }

.btn-amazon {
  background: var(--color-amazon);
  color: #111;
}
.btn-amazon:hover { background: var(--color-amazon-dark); }

.btn-outline {
  background: rgba(255,255,255,0.1);
  color: white;
  border: 1.5px solid rgba(255,255,255,0.4);
}
.btn-outline:hover { background: rgba(255,255,255,0.2); }

.btn-primary {
  background: var(--color-primary);
  color: white;
}
.btn-primary:hover { background: var(--color-primary-dark); }

/* ---- SECTION HEADERS ---- */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-tag {
  display: inline-block;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 540px;
  margin: 0 auto;
}

/* ---- CATEGORY CARDS ---- */
.section-categories { padding: 72px 0; }

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.category-card {
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: block;
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.category-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  display: block;
}

.category-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.category-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 20px;
}

.category-link {
  color: var(--color-primary);
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ---- PRODUCT GRID ---- */
.section-products { padding: 0 0 80px; }

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.product-image-wrap {
  position: relative;
  background: var(--color-bg-soft);
  aspect-ratio: 1;
  overflow: hidden;
}

.product-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.product-card:hover .product-image-wrap img { transform: scale(1.05); }

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--color-primary);
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-badge.badge-amazon { background: var(--color-amazon); color: #111; }

.product-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-category-tag {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.product-name {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
}

.product-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: 16px;
  flex: 1;
}

.product-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.product-rating {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.85rem;
}

.stars { color: var(--color-amazon); letter-spacing: -1px; }
.review-count { color: var(--color-text-muted); }

.product-price {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
}

.btn-buy {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px;
  background: var(--color-amazon);
  color: #111;
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  text-decoration: none;
}
.btn-buy:hover { background: var(--color-amazon-dark); transform: translateY(-1px); }

.btn-buy-detail {
  background: var(--color-primary);
  color: white;
  margin-bottom: 8px;
}
.btn-buy-detail:hover { background: var(--color-primary-dark); }

/* ---- TRUST BAR ---- */
.trust-bar {
  background: var(--color-primary-light);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 20px 0;
}

.trust-inner {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-primary-dark);
}

.trust-icon { font-size: 1.1rem; }

/* ---- FAQ SECTION (GEO signal) ---- */
.section-faq {
  padding: 72px 0;
  background: var(--color-bg-soft);
}

.faq-list { max-width: 720px; margin: 0 auto; }

.faq-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 18px 20px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  color: var(--color-text);
}

.faq-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  transition: transform 0.2s;
  color: var(--color-primary);
}

.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-answer {
  display: none;
  padding: 0 20px 18px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.faq-item.open .faq-answer { display: block; }

/* ---- ABOUT STRIP ---- */
.section-about {
  padding: 72px 0;
  background: var(--color-primary);
  color: white;
  text-align: center;
}

.section-about h2 {
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-about p {
  opacity: 0.85;
  max-width: 580px;
  margin: 0 auto 32px;
  font-size: 1.05rem;
}

/* ---- FOOTER ---- */
.site-footer {
  background: #0f1a14;
  color: rgba(255,255,255,0.6);
  padding: 48px 0 24px;
  font-size: 0.875rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo { color: white; margin-bottom: 12px; }
.footer-brand p { line-height: 1.6; }

.footer-col h4 {
  font-weight: 600;
  color: white;
  margin-bottom: 16px;
  font-size: 0.875rem;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a:hover { color: white; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-disclaimer {
  font-size: 0.75rem;
  opacity: 0.5;
  max-width: 600px;
  line-height: 1.5;
}

/* ---- PRODUCT DETAIL PAGE ---- */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  display: flex;
  gap: 8px;
  align-items: center;
}

.breadcrumb a { color: var(--color-primary); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb-sep { opacity: 0.4; }

.product-detail {
  padding: 40px 0 80px;
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.product-detail-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-soft);
  aspect-ratio: 1;
}

.product-detail-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-detail-info h1 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  line-height: 1.25;
}

.rating-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.price-row {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.product-detail-desc {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 24px;
}

.feature-list {
  list-style: none;
  margin-bottom: 32px;
}

.feature-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 8px 0;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--color-border);
}
.feature-list li:last-child { border-bottom: none; }

.feature-check { color: var(--color-primary); font-size: 1rem; flex-shrink: 0; }

.buy-section { margin-top: 32px; }

/* ---- FILTER BAR (category pages) ---- */
.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 24px 0;
}

.filter-btn {
  padding: 8px 18px;
  border-radius: 100px;
  border: 1.5px solid var(--color-border);
  background: none;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--color-text-muted);
}

.filter-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.filter-btn.active { background: var(--color-primary); border-color: var(--color-primary); color: white; }

/* ---- LOADING SPINNER ---- */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 60px auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- EMPTY STATE ---- */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-muted);
}
.empty-state p { margin-top: 8px; }

/* ---- PAGE HERO (category pages) ---- */
.page-hero {
  background: var(--color-bg-soft);
  border-bottom: 1px solid var(--color-border);
  padding: 48px 0;
}

.page-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.page-hero p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 520px;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .site-nav { display: none; }
  .site-nav.open { display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: white; border-bottom: 1px solid var(--color-border); padding: 12px; box-shadow: var(--shadow-md); }
  .nav-toggle { display: block; }
  .header-cta { display: none; }

  .category-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .product-detail-grid { grid-template-columns: 1fr; gap: 32px; }
  .trust-inner { gap: 20px; }

  .hero { padding: 56px 20px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 300px; justify-content: center; }

  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .product-grid { grid-template-columns: 1fr; }
}

/* ---- DETAIL IMAGES (A+ content) ---- */
.detail-image-wrap {
  margin-bottom: 20px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.detail-image-wrap img {
  width: 100%;
  height: auto;
  display: block;
}

/* ---- UTILITY ---- */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.text-center { text-align: center; }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.mb-0 { margin-bottom: 0; }