/* ===== CSS Variables - Matching HKPEP.cc ===== */
:root {
  --primary: #DD3333;
  --primary-dark: #CC3333;
  --primary-light: #e85555;
  --accent: #88AD99;
  --bg: #ffffff;
  --bg-alt: #F7F7F7;
  --surface: #ffffff;
  --text: #777777;
  --text-dark: #242424;
  --border: #e8e8e8;
  --brd-radius: 16px;
  --form-radius: 35px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --max-w: 1280px;
  --font-display: 'Geologica', Arial, Helvetica, sans-serif;
  --font-body: 'Cabin', Arial, Helvetica, sans-serif;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea, select { font-family: inherit; }

/* ===== Layout ===== */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* ===== Animations ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp 0.6s ease-out both; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s;
}
.site-header.scrolled { box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.logo {
  font-family: var(--font-display);
  font-size: 1.5rem; font-weight: 800;
  color: var(--text-dark); letter-spacing: -0.5px;
}
.logo span { color: var(--primary); }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a {
  font-family: var(--font-display);
  font-size: 0.9rem; font-weight: 500; color: var(--text-dark);
  position: relative; transition: color 0.2s;
  text-transform: capitalize;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 2px; background: var(--primary);
  transition: width 0.3s;
}
.nav-links a:hover { color: var(--primary); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--primary); }
.header-actions { display: flex; gap: 12px; align-items: center; }
.btn-nav {
  padding: 8px 22px; border-radius: var(--form-radius);
  background: var(--primary); color: #fff;
  font-family: var(--font-display);
  font-size: 0.85rem; font-weight: 500;
  text-transform: capitalize;
  transition: all 0.25s;
}
.btn-nav:hover { background: var(--primary-dark); transform: translateY(-1px); }
.mobile-toggle { display: none; font-size: 1.5rem; color: var(--text-dark); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 30px; border-radius: var(--form-radius);
  font-family: var(--font-display);
  font-size: 0.95rem; font-weight: 500;
  text-transform: capitalize;
  transition: all 0.3s; cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--primary); color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(221,51,51,0.3);
}
.btn-outline {
  background: transparent; color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-light {
  background: rgba(255,255,255,0.15); color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(4px);
}
.btn-light:hover { background: rgba(255,255,255,0.25); }
.btn-dark {
  background: var(--text-dark); color: #fff;
}
.btn-dark:hover { background: #000; transform: translateY(-2px); }

/* ===== Hero ===== */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  padding: 100px 0 120px;
  color: #fff;
  min-height: 600px;
  display: flex; align-items: center;
}
.hero::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='100' height='100' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3Cpattern id='grid' width='100' height='100' patternUnits='userSpaceOnUse'%3E%3Cpath d='M 100 0 L 0 0 0 100' fill='none' stroke='%23ffffff' stroke-width='0.5' opacity='0.05'/%3E%3C/pattern%3E%3C/defs%3E%3Crect width='100%25' height='100%25' fill='url(%23grid)'/%3E%3C/svg%3E");
}
.hero::after {
  content: ''; position: absolute; bottom: -20%; right: -10%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(221,51,51,0.15) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-content { position: relative; z-index: 2; max-width: 720px; }
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem); font-weight: 800;
  line-height: 1.1; letter-spacing: -1.5px;
  margin-bottom: 20px;
  animation: fadeUp 0.8s ease-out;
}
.hero p {
  font-size: 1.25rem; opacity: 0.85;
  margin-bottom: 36px; max-width: 560px;
  animation: fadeUp 0.8s ease-out 0.15s both;
}
.hero-actions { display: flex; gap: 16px; animation: fadeUp 0.8s ease-out 0.3s both; }
.hero-actions .btn { background: var(--primary); color: #fff; }
.hero-actions .btn:hover { background: var(--primary-dark); }

/* ===== Section Headers ===== */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-header {
  text-align: center; margin-bottom: 48px;
}
.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 700;
  color: var(--text-dark); letter-spacing: -0.5px;
}
.section-header p {
  color: var(--text); margin-top: 12px; font-size: 1.05rem;
}
.section-header .eyebrow {
  display: inline-block; font-size: 0.8rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 2px;
  color: var(--primary); margin-bottom: 12px;
}

/* ===== Product Grid ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.product-card {
  background: var(--surface);
  border-radius: var(--brd-radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
  display: flex; flex-direction: column;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.product-card-image {
  position: relative; aspect-ratio: 1; overflow: hidden;
  background: linear-gradient(135deg, #f5f5f5, #ebebeb);
  display: flex; align-items: center; justify-content: center;
}
.product-card-image img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s;
}
.product-card:hover .product-card-image img { transform: scale(1.06); }
.product-card-placeholder {
  font-family: var(--font-display);
  font-size: 2rem; font-weight: 800;
  color: var(--text-dark); opacity: 0.2;
  text-transform: uppercase; letter-spacing: 2px;
}
.product-card-badge {
  position: absolute; top: 12px; left: 12px;
  background: var(--primary); color: #fff;
  padding: 4px 12px; border-radius: var(--form-radius);
  font-size: 0.7rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.product-card-actions {
  position: absolute; bottom: 0; left: 0; right: 0;
  display: flex; justify-content: center; gap: 8px;
  padding: 12px;
  background: linear-gradient(transparent, rgba(0,0,0,0.4));
  opacity: 0; transform: translateY(100%);
  transition: all 0.3s;
}
.product-card:hover .product-card-actions {
  opacity: 1; transform: translateY(0);
}
.product-card-action-btn {
  width: 36px; height: 36px; border-radius: 50%;
  background: #fff; color: var(--text-dark);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem; transition: all 0.2s;
}
.product-card-action-btn:hover { background: var(--primary); color: #fff; }
.product-card-body { padding: 18px 20px; flex: 1; display: flex; flex-direction: column; text-align: center; }
.product-card-category {
  font-size: 0.72rem; color: #A5A5A5;
  font-weight: 500; text-transform: capitalize; letter-spacing: 0.5px;
  margin-bottom: 6px;
}
.product-card-title {
  font-family: var(--font-display);
  font-size: 1.05rem; font-weight: 600;
  color: var(--text-dark); margin-bottom: 12px;
  transition: color 0.2s;
}
.product-card:hover .product-card-title { color: var(--primary); }
.product-card-readmore {
  display: inline-block;
  padding: 8px 24px; border-radius: var(--form-radius);
  background: var(--primary); color: #fff;
  font-family: var(--font-display);
  font-size: 0.82rem; font-weight: 500;
  text-transform: capitalize;
  transition: all 0.2s;
  margin-top: auto;
  align-self: center;
}
.product-card-readmore:hover { background: var(--primary-dark); }

/* ===== Feature Banner ===== */
.feature-banner {
  background: linear-gradient(135deg, #1a1a2e, #16213e);
  color: #fff; padding: 80px 0;
  text-align: center; position: relative; overflow: hidden;
}
.feature-banner::before {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0h60v60H0z' fill='none'/%3E%3Cpath d='M30 30m-25 0a25 25 0 1 0 50 0a25 25 0 1 0-50 0' stroke='%23DD3333' stroke-width='0.5' fill='none' opacity='0.1'/%3E%3C/svg%3E");
  opacity: 0.5;
}
.feature-banner-content { position: relative; z-index: 2; }
.feature-banner h2 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 800;
  line-height: 1; letter-spacing: -2px;
}
.feature-banner h2 span { display: block; opacity: 0.9; }
.feature-banner h2 span:nth-child(2) { color: var(--primary-light); }
.feature-banner h2 span:nth-child(3) { color: var(--accent); }
.feature-banner p {
  margin: 20px 0 32px; opacity: 0.8; font-size: 1.1rem;
}

/* ===== Features Section ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--surface);
  border-radius: var(--brd-radius);
  padding: 32px 24px;
  text-align: center;
  border: 1px solid var(--border);
  transition: all 0.3s;
}
.feature-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.feature-icon {
  width: 56px; height: 56px; margin: 0 auto 16px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(221,51,51,0.08), rgba(221,51,51,0.04));
  display: flex; align-items: center; justify-content: center;
}
.feature-icon svg { width: 28px; height: 28px; color: var(--primary); }
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem; font-weight: 600; margin-bottom: 6px;
  color: var(--text-dark);
}
.feature-card p { font-size: 0.88rem; color: var(--text); }

/* ===== Innovation Section ===== */
.innovation-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.innovation-image {
  border-radius: var(--brd-radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #f0f0f0, #e0e0e0);
  display: flex; align-items: center; justify-content: center;
}
.innovation-image img { width: 100%; height: 100%; object-fit: cover; }
.innovation-content h3 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700; color: var(--text-dark);
  margin-bottom: 16px; letter-spacing: -0.5px;
}
.innovation-content p {
  color: var(--text); margin-bottom: 32px; font-size: 1.05rem;
}
.innovation-features { display: grid; gap: 20px; }
.innovation-feature {
  display: flex; gap: 16px; align-items: flex-start;
}
.innovation-feature-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: rgba(221,51,51,0.08);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.innovation-feature-icon svg { width: 24px; height: 24px; color: var(--primary); }
.innovation-feature h4 {
  font-family: var(--font-display);
  font-size: 1rem; font-weight: 600; color: var(--text-dark);
  margin-bottom: 4px;
}
.innovation-feature p { font-size: 0.88rem; color: var(--text); margin: 0; }

/* ===== Testimonials ===== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}
.testimonial-card {
  background: var(--surface);
  border-radius: var(--brd-radius);
  padding: 28px;
  border: 1px solid var(--border);
  transition: all 0.3s;
}
.testimonial-card:hover { box-shadow: var(--shadow-md); border-color: var(--primary); }
.testimonial-stars { display: flex; gap: 2px; margin-bottom: 12px; color: #fbbf24; }
.testimonial-content {
  font-size: 0.95rem; color: var(--text); margin-bottom: 16px;
  font-style: italic; line-height: 1.7;
}
.testimonial-author {
  display: flex; align-items: center; gap: 12px;
}
.testimonial-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 1rem;
  font-family: var(--font-display);
}
.testimonial-name { font-weight: 600; font-size: 0.92rem; color: var(--text-dark); }

/* ===== Newsletter ===== */
.newsletter {
  background: linear-gradient(135deg, var(--text-dark), #1a1a1a);
  color: #fff; padding: 70px 0; text-align: center;
}
.newsletter h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700;
  margin-bottom: 10px;
}
.newsletter h2 u { text-decoration-color: var(--primary); text-underline-offset: 4px; }
.newsletter p { opacity: 0.8; margin-bottom: 28px; }
.newsletter-form {
  display: flex; gap: 10px; max-width: 460px; margin: 0 auto;
}
.newsletter-form input {
  flex: 1; padding: 13px 20px; border-radius: var(--form-radius);
  border: 1px solid rgba(255,255,255,0.2); font-size: 0.95rem;
  background: rgba(255,255,255,0.08); color: #fff;
  backdrop-filter: blur(4px);
}
.newsletter-form input::placeholder { color: rgba(255,255,255,0.5); }
.newsletter-form input:focus { outline: 2px solid var(--primary); background: rgba(255,255,255,0.12); }

/* ===== Need Help Section ===== */
.need-help {
  background: var(--bg-alt);
  padding: 60px 0;
  text-align: center;
}
.need-help h3 {
  font-family: var(--font-display);
  font-size: 1.8rem; font-weight: 700;
  color: var(--text-dark); margin-bottom: 8px;
}
.need-help p { color: var(--text); margin-bottom: 20px; }

/* ===== Footer ===== */
.site-footer {
  background: #151515; color: rgba(255,255,255,0.8);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 40px;
}
.footer-brand h3 {
  font-family: var(--font-display);
  color: #fff; font-size: 1.4rem; font-weight: 800;
  margin-bottom: 12px;
}
.footer-brand p { font-size: 0.88rem; line-height: 1.7; opacity: 0.7; }
.footer-col h4 {
  color: #fff; font-size: 0.9rem; font-weight: 600;
  margin-bottom: 16px; text-transform: uppercase; letter-spacing: 1px;
}
.footer-col a {
  display: block; font-size: 0.88rem; padding: 4px 0;
  transition: color 0.2s; opacity: 0.7;
}
.footer-col a:hover { color: var(--primary); opacity: 1; }
.footer-contact-item {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 0.88rem; margin-bottom: 12px; opacity: 0.7;
}
.footer-contact-item svg { width: 18px; height: 18px; color: var(--primary); flex-shrink: 0; margin-top: 2px; }
.social-links { display: flex; gap: 12px; margin-top: 16px; }
.social-links a {
  width: 38px; height: 38px; border-radius: 10px;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  transition: all 0.25s;
}
.social-links a:hover { background: var(--primary); transform: translateY(-2px); }
.social-links svg { width: 18px; height: 18px; color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0; text-align: center;
  font-size: 0.82rem; opacity: 0.6;
}
.footer-disclaimer {
  padding: 20px 0; text-align: center;
  font-size: 0.78rem; opacity: 0.5;
  border-top: 1px solid rgba(255,255,255,0.05);
  line-height: 1.6;
}

/* ===== Shop Page ===== */
.page-header {
  background: linear-gradient(135deg, #1a1a2e, #16213e);
  color: #fff; padding: 50px 0 40px;
  text-align: center;
}
.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800;
  letter-spacing: -0.5px;
}
.page-header p {
  margin-top: 12px; opacity: 0.8; max-width: 640px;
  margin-left: auto; margin-right: auto; font-size: 1.02rem;
}
.shop-toolbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 28px; flex-wrap: wrap; gap: 12px;
}
.shop-info { font-size: 0.9rem; color: var(--text); }
.shop-controls { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.shop-sort {
  display: flex; align-items: center; gap: 8px;
}
.shop-sort label { font-size: 0.85rem; color: var(--text); }
.shop-sort select {
  padding: 8px 16px; border-radius: var(--form-radius);
  border: 1px solid var(--border); background: #fff;
  font-size: 0.85rem; color: var(--text-dark);
  cursor: pointer;
}
.per-page-options { display: flex; gap: 8px; align-items: center; }
.per-page-options span { font-size: 0.85rem; color: var(--text); }
.per-page-options a {
  padding: 4px 12px; border-radius: var(--form-radius);
  font-size: 0.82rem; color: var(--text);
  border: 1px solid var(--border); transition: all 0.2s;
}
.per-page-options a.active, .per-page-options a:hover {
  background: var(--primary); color: #fff; border-color: var(--primary);
}

/* ===== Pagination ===== */
.pagination {
  display: flex; justify-content: center; gap: 8px;
  margin-top: 40px; flex-wrap: wrap;
}
.pagination a, .pagination span {
  display: flex; align-items: center; justify-content: center;
  min-width: 40px; height: 40px; padding: 0 12px;
  border-radius: var(--form-radius);
  font-size: 0.9rem; color: var(--text);
  border: 1px solid var(--border); transition: all 0.2s;
}
.pagination a:hover { border-color: var(--primary); color: var(--primary); }
.pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ===== Breadcrumb ===== */
.breadcrumb {
  display: flex; gap: 8px; align-items: center;
  padding: 20px 0; font-size: 0.85rem; color: var(--text);
}
.breadcrumb a { color: var(--text); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { opacity: 0.5; }
.breadcrumb .current { color: var(--text-dark); font-weight: 500; }

/* ===== Product Detail ===== */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  margin-bottom: 40px;
}
.product-detail-image {
  border-radius: var(--brd-radius);
  overflow: hidden;
  aspect-ratio: 1;
  background: linear-gradient(135deg, #f5f5f5, #ebebeb);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.product-detail-image img { width: 100%; height: 100%; object-fit: cover; }
.product-detail-placeholder {
  font-family: var(--font-display);
  font-size: 4rem; font-weight: 800;
  color: var(--text-dark); opacity: 0.15;
  text-transform: uppercase;
}
.product-detail-info h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 700; color: var(--text-dark);
  margin-bottom: 12px; letter-spacing: -0.5px;
}
.product-detail-category {
  font-size: 0.8rem; color: #A5A5A5;
  font-weight: 500; text-transform: capitalize;
  margin-bottom: 8px;
}
.product-detail-short {
  font-size: 1rem; color: var(--text);
  margin-bottom: 24px; line-height: 1.7;
}
.product-detail-rating {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 24px;
}
.product-detail-rating .stars { color: #fbbf24; display: flex; gap: 2px; }
.product-detail-rating .rating-text { font-size: 0.85rem; color: var(--text); }

/* ===== Specs Table ===== */
.specs-table {
  width: 100%; border-collapse: collapse;
  margin-bottom: 24px; border-radius: var(--brd-radius);
  overflow: hidden; border: 1px solid var(--border);
}
.specs-table th {
  text-align: left; padding: 12px 16px;
  background: var(--bg-alt); font-weight: 600;
  font-size: 0.88rem; color: var(--text-dark);
  border-bottom: 1px solid var(--border);
  width: 40%;
}
.specs-table td {
  padding: 12px 16px; font-size: 0.88rem;
  color: var(--text); border-bottom: 1px solid var(--border);
}
.specs-table tr:last-child th, .specs-table tr:last-child td { border-bottom: none; }

/* ===== Product Actions ===== */
.product-actions {
  display: flex; gap: 12px; margin-top: 20px;
}
.product-action-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; border-radius: var(--form-radius);
  border: 1px solid var(--border); color: var(--text-dark);
  font-size: 0.85rem; font-weight: 500;
  transition: all 0.2s;
}
.product-action-btn:hover { border-color: var(--primary); color: var(--primary); }

/* ===== Disclaimer Box ===== */
.disclaimer-box {
  background: #fff8e1; border: 1px solid #ffe082;
  border-radius: var(--brd-radius);
  padding: 20px 24px; margin-bottom: 40px;
  font-size: 0.85rem; color: #6d5800; line-height: 1.7;
}
.disclaimer-box strong { color: #f57f17; }

/* ===== Product Full Description ===== */
.product-full-description {
  background: var(--bg-alt);
  border-radius: var(--brd-radius);
  padding: 40px;
  margin-bottom: 40px;
}
.product-full-description h3 {
  font-family: var(--font-display);
  font-size: 1.3rem; font-weight: 700;
  color: var(--text-dark); margin-bottom: 16px;
  margin-top: 24px;
}
.product-full-description h3:first-child { margin-top: 0; }
.product-full-description p {
  font-size: 0.95rem; color: var(--text);
  margin-bottom: 12px; line-height: 1.8;
}
.product-full-description ul {
  list-style: none; padding-left: 0;
  margin-bottom: 16px;
}
.product-full-description ul li {
  font-size: 0.92rem; color: var(--text);
  padding: 6px 0 6px 24px;
  position: relative; line-height: 1.7;
}
.product-full-description ul li::before {
  content: '\2022'; position: absolute; left: 8px;
  color: var(--primary); font-size: 1.2rem; line-height: 1;
}

/* ===== Product Navigation ===== */
.product-nav {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 24px; gap: 16px;
}
.product-nav a {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.85rem; color: var(--text);
  transition: color 0.2s;
}
.product-nav a:hover { color: var(--primary); }
.product-nav-back {
  padding: 8px 20px; border-radius: var(--form-radius);
  border: 1px solid var(--border); color: var(--text-dark);
}

/* ===== Reviews Section ===== */
.reviews-section {
  background: var(--surface);
  border-radius: var(--brd-radius);
  padding: 40px;
  border: 1px solid var(--border);
}
.reviews-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 24px; flex-wrap: wrap; gap: 12px;
}
.reviews-header h3 {
  font-family: var(--font-display);
  font-size: 1.4rem; font-weight: 700; color: var(--text-dark);
}
.reviews-summary {
  display: flex; align-items: center; gap: 12px;
}
.reviews-summary .avg-rating {
  font-size: 1.5rem; font-weight: 700; color: var(--text-dark);
  font-family: var(--font-display);
}
.reviews-summary .stars { color: #fbbf24; display: flex; gap: 2px; }
.reviews-summary .count { font-size: 0.85rem; color: var(--text); }
.reviews-list { margin-bottom: 32px; }
.review-item {
  padding: 20px 0; border-bottom: 1px solid var(--border);
}
.review-item:last-child { border-bottom: none; }
.review-item-header {
  display: flex; align-items: center; gap: 12px; margin-bottom: 8px;
}
.review-item-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 0.9rem;
  font-family: var(--font-display);
}
.review-item-name { font-weight: 600; font-size: 0.9rem; color: var(--text-dark); }
.review-item-date { font-size: 0.78rem; color: var(--text); }
.review-item .stars { color: #fbbf24; display: flex; gap: 2px; margin-bottom: 6px; }
.review-item-content { font-size: 0.9rem; color: var(--text); line-height: 1.7; }
.reviews-empty {
  text-align: center; padding: 40px;
  color: var(--text); font-size: 0.95rem;
}

/* Review Form */
.review-form {
  background: var(--bg-alt);
  border-radius: var(--brd-radius);
  padding: 32px;
  margin-top: 32px;
}
.review-form h3 {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 600; color: var(--text-dark);
  margin-bottom: 20px;
}
.review-form .form-group { margin-bottom: 16px; }
.review-form label {
  display: block; font-size: 0.85rem; font-weight: 500;
  color: var(--text-dark); margin-bottom: 6px;
}
.review-form label .required { color: var(--primary); }
.review-form input,
.review-form textarea {
  width: 100%; padding: 12px 20px;
  border-radius: var(--form-radius);
  border: 1px solid var(--border); background: #fff;
  font-size: 0.9rem; color: var(--text-dark);
  transition: border-color 0.2s;
}
.review-form input:focus,
.review-form textarea:focus {
  outline: none; border-color: var(--primary);
}
.review-form textarea { min-height: 120px; resize: vertical; }
.rating-input {
  display: flex; gap: 4px; font-size: 1.5rem;
}
.rating-input label {
  cursor: pointer; color: #ddd; transition: color 0.2s;
}
.rating-input input { display: none; }
.rating-input label:hover,
.rating-input label:hover ~ label,
.rating-input input:checked ~ label {
  color: #fbbf24;
}
.review-form .form-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.review-form button {
  margin-top: 8px;
}

/* ===== Contact Page ===== */
.contact-section { padding: 60px 0; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}
.contact-info-cards {
  display: grid; gap: 24px;
}
.contact-info-card {
  background: var(--surface);
  border-radius: var(--brd-radius);
  padding: 32px;
  border: 1px solid var(--border);
}
.contact-info-card h2 {
  font-family: var(--font-display);
  font-size: 1.3rem; font-weight: 700;
  color: var(--text-dark); margin-bottom: 16px;
}
.contact-info-card .info-item {
  font-size: 0.95rem; color: var(--text); line-height: 1.7;
}
.contact-info-card .info-item strong {
  display: block; color: var(--text-dark); margin-bottom: 4px;
  font-size: 0.88rem; font-weight: 600;
}
.contact-info-card .info-list {
  display: grid; gap: 8px;
}
.contact-info-card .info-list-item {
  font-size: 0.9rem; color: var(--text);
}
.contact-map {
  border-radius: var(--brd-radius);
  overflow: hidden;
  margin-top: 24px;
  border: 1px solid var(--border);
}
.contact-map iframe { width: 100%; height: 400px; border: 0; display: block; }
.contact-form {
  background: var(--surface);
  border-radius: var(--brd-radius);
  padding: 40px;
  border: 1px solid var(--border);
}
.contact-form h2 {
  font-family: var(--font-display);
  font-size: 1.5rem; font-weight: 700;
  color: var(--text-dark); margin-bottom: 24px;
}
.contact-form .form-group { margin-bottom: 16px; }
.contact-form label {
  display: block; font-size: 0.85rem; font-weight: 500;
  color: var(--text-dark); margin-bottom: 6px;
}
.contact-form label .required { color: var(--primary); }
.contact-form input,
.contact-form textarea {
  width: 100%; padding: 12px 20px;
  border-radius: var(--form-radius);
  border: 1px solid rgba(0,0,0,0.1); background: #fff;
  font-size: 0.9rem; color: var(--text-dark);
  transition: border-color 0.2s;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none; border-color: var(--primary);
}
.contact-form textarea { min-height: 140px; resize: vertical; }
.contact-form button { width: 100%; justify-content: center; }

/* ===== Loading ===== */
.loading {
  grid-column: 1/-1; text-align: center;
  padding: 60px; color: var(--text); font-size: 0.9rem;
}
.loading-spinner {
  width: 32px; height: 32px; margin: 0 auto 12px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ===== Mobile Menu ===== */
.mobile-menu {
  display: none; position: fixed; top: 60px; left: 0; right: 0;
  background: #fff; border-bottom: 1px solid var(--border);
  padding: 20px; z-index: 999;
  flex-direction: column; gap: 12px;
  box-shadow: var(--shadow-md);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 10px 0; font-size: 0.95rem; color: var(--text-dark);
  border-bottom: 1px solid var(--border);
}
.mobile-menu a:last-child { border-bottom: none; }

/* ===== COAS Certificate Page ===== */
.coas-year-header {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-dark);
  margin: 40px 0 24px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}

.coas-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 20px;
}

.coas-card {
  cursor: pointer;
  border-radius: var(--brd-radius);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: all 0.25s ease;
}

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

.coas-card-img-wrapper {
  width: 100%;
  aspect-ratio: 1600 / 2360;
  overflow: hidden;
  background: var(--bg-alt);
}

.coas-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.coas-card:hover .coas-card-img {
  transform: scale(1.03);
}

.coas-card-name {
  padding: 12px 16px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-dark);
  text-align: center;
}

/* Lightbox */
.coas-lightbox {
  display: none;
  position: fixed;
  z-index: 9999;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.9);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 40px 20px;
}

.coas-lightbox-img {
  max-width: 90%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 10px 60px rgba(0, 0, 0, 0.5);
}

.coas-lightbox-caption {
  color: #fff;
  font-family: var(--font-display);
  font-size: 1rem;
  margin-top: 16px;
  text-align: center;
}

.coas-lightbox-close {
  position: fixed;
  top: 20px;
  right: 30px;
  color: #fff;
  font-size: 2.5rem;
  cursor: pointer;
  z-index: 10000;
  line-height: 1;
  transition: color 0.2s;
}

.coas-lightbox-close:hover { color: var(--primary); }

@media (max-width: 768px) {
  .coas-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .coas-card-name { font-size: 0.75rem; padding: 6px 8px; }
}

/* ===== Responsive ===== */
@media (max-width: 968px) {
  .innovation-section { grid-template-columns: 1fr; gap: 30px; }
  .product-detail { grid-template-columns: 1fr; gap: 30px; }
  .contact-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .header-actions .btn-nav { display: none; }
  .mobile-toggle { display: block; }
  .product-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .review-form .form-row { grid-template-columns: 1fr; }
  .section { padding: 50px 0; }
  .hero { padding: 60px 0 80px; min-height: 400px; }
  .feature-banner { padding: 50px 0; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .product-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .product-card-body { padding: 12px; }
  .product-card-title { font-size: 0.92rem; }
  .product-card-readmore { padding: 6px 16px; font-size: 0.75rem; }
}