/* ============================================
   Yitao Xing Medical - Global Stylesheet
   Professional Medical Equipment B2B Website
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --primary: #0056B3;
  --primary-dark: #003D80;
  --primary-light: #E8F0FE;
  --accent: #00A8E8;
  --accent-light: #E0F7FA;
  --success: #28A745;
  --warning: #FFC107;
  --danger: #DC3545;
  --text: #2C3E50;
  --text-light: #6C757D;
  --text-white: #FFFFFF;
  --bg: #FFFFFF;
  --bg-light: #F8F9FA;
  --bg-dark: #1A2332;
  --border: #DEE2E6;
  --shadow: 0 2px 15px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --radius: 8px;
  --radius-lg: 16px;
  --transition: all 0.3s ease;
  --font-main: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-heading: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-main);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }

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

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p { margin-bottom: 1rem; }

/* ---------- Utility Classes ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section { padding: 80px 0; }
.section-sm { padding: 50px 0; }
.section-bg { background: var(--bg-light); }
.section-dark { background: var(--bg-dark); color: var(--text-white); }

.text-center { text-align: center; }
.text-white { color: var(--text-white); }
.text-primary { color: var(--primary); }
.text-accent { color: var(--accent); }

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header .subtitle {
  display: inline-block;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-header p {
  max-width: 650px;
  margin: 0 auto;
  color: var(--text-light);
  font-size: 1.05rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 2px solid transparent;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: var(--text-white);
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--text-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,86,179,0.3);
}

.btn-accent {
  background: var(--accent);
  color: var(--text-white);
  border-color: var(--accent);
}
.btn-accent:hover {
  background: #0090C7;
  border-color: #0090C7;
  color: var(--text-white);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: var(--text-white);
  transform: translateY(-2px);
}

.btn-outline-white {
  background: transparent;
  color: var(--text-white);
  border-color: var(--text-white);
}
.btn-outline-white:hover {
  background: var(--text-white);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn-white {
  background: var(--text-white);
  color: var(--primary);
  border-color: var(--text-white);
}
.btn-white:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  transform: translateY(-2px);
}

.btn-sm { padding: 10px 24px; font-size: 0.85rem; }
.btn-lg { padding: 18px 42px; font-size: 1.05rem; }

.btn-group { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- Header / Navigation ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 1.1rem;
}

.logo-text {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.2;
}

.logo-text small {
  display: block;
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--text-light);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.nav { display: flex; align-items: center; gap: 32px; }

.nav-links {
  display: flex;
  gap: 8px;
}

.nav-links a {
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  border-radius: 6px;
  transition: var(--transition);
}

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

.nav-cta .btn { padding: 10px 24px; font-size: 0.85rem; }

/* Mobile menu */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ---------- Hero Section ---------- */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #0A1628 0%, #003D80 50%, #0056B3 100%);
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 50%;
  background: url("data:image/svg+xml,%3Csvg width='600' height='600' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3Cpattern id='grid' width='60' height='60' patternUnits='userSpaceOnUse'%3E%3Cpath d='M 60 0 L 0 0 0 60' fill='none' stroke='rgba(255,255,255,0.03)' stroke-width='1'/%3E%3C/pattern%3E%3C/defs%3E%3Crect width='600' height='600' fill='url(%23grid)'/%3E%3C/svg%3E") repeat;
  opacity: 0.5;
}

.hero-particles {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  overflow: hidden;
}

.hero-particles span {
  position: absolute;
  width: 6px;
  height: 6px;
  background: rgba(0,168,232,0.3);
  border-radius: 50%;
  animation: float 15s infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-100vh) rotate(720deg); opacity: 0; }
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  color: var(--text-white);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,168,232,0.15);
  border: 1px solid rgba(0,168,232,0.3);
  border-radius: 50px;
  padding: 8px 20px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.hero-badge .pulse {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(0,168,232,0.5); }
  70% { box-shadow: 0 0 0 12px rgba(0,168,232,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,168,232,0); }
}

.hero h1 {
  color: var(--text-white);
  margin-bottom: 20px;
  font-weight: 800;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--accent), #00D4FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 36px;
  max-width: 520px;
  line-height: 1.8;
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.hero-stat {
  text-align: left;
}

.hero-stat .number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.hero-stat .label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image-wrapper {
  position: relative;
  width: 100%;
  max-width: 480px;
  aspect-ratio: 1;
}

.hero-image-bg {
  position: absolute;
  inset: -20px;
  background: radial-gradient(circle, rgba(0,168,232,0.15), transparent 70%);
  border-radius: 50%;
  animation: breathe 4s ease-in-out infinite;
}

@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.05); opacity: 0.8; }
}

.hero-image-placeholder {
  width: 100%;
  aspect-ratio: 1;
  background: linear-gradient(135deg, rgba(255,255,255,0.05), rgba(255,255,255,0.1));
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.4);
  font-size: 0.9rem;
  backdrop-filter: blur(10px);
}

.hero-image-placeholder svg {
  width: 120px;
  height: 120px;
  margin-bottom: 16px;
  opacity: 0.3;
}

.hero-floating-card {
  position: absolute;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 12px;
  padding: 16px 20px;
  color: var(--text-white);
  animation: floatCard 6s ease-in-out infinite;
}

.hero-floating-card.card-1 {
  top: 10%;
  right: -10%;
  animation-delay: 0s;
}

.hero-floating-card.card-2 {
  bottom: 15%;
  left: -10%;
  animation-delay: 3s;
}

.hero-floating-card .card-icon {
  font-size: 1.5rem;
  margin-bottom: 4px;
}

.hero-floating-card .card-value {
  font-weight: 700;
  font-size: 1.1rem;
}

.hero-floating-card .card-label {
  font-size: 0.7rem;
  opacity: 0.7;
}

@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ---------- Stats Bar ---------- */
.stats-bar {
  background: var(--text-white);
  padding: 0;
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-lg);
  margin-top: -60px;
  position: relative;
  z-index: 10;
}

.stats-bar .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.stat-item {
  padding: 36px 24px;
  text-align: center;
  border-right: 1px solid var(--border);
}

.stat-item:last-child { border-right: none; }

.stat-item .stat-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: var(--primary-light);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.stat-item .stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.stat-item .stat-label {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 8px;
  font-weight: 500;
}

/* ---------- Product Categories ---------- */
.categories {
  padding: 100px 0 60px;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.category-card {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  transition: var(--transition);
  overflow: hidden;
  cursor: pointer;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: var(--transition);
}

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

.category-card:hover::before {
  transform: scaleX(1);
}

.category-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  background: var(--primary-light);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  transition: var(--transition);
}

.category-card:hover .category-icon {
  background: var(--primary);
  transform: scale(1.1);
}

.category-card:hover .category-icon svg {
  color: white;
}

.category-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.category-card p {
  font-size: 0.9rem;
  color: var(--text-light);
}

.category-count {
  display: inline-block;
  margin-top: 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-light);
  padding: 4px 14px;
  border-radius: 50px;
}

/* ---------- Products Section ---------- */
.products-section { padding: 80px 0; }

.product-filters {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 24px;
  border: 1px solid var(--border);
  border-radius: 50px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

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

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.product-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

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

.product-image {
  position: relative;
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-image-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  opacity: 0.5;
}

.product-image-placeholder svg {
  width: 64px;
  height: 64px;
  margin-bottom: 8px;
}

.product-image-placeholder span {
  font-size: 0.8rem;
  font-weight: 500;
}

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-refurbished {
  background: var(--warning);
  color: #333;
}

.badge-new {
  background: var(--success);
  color: var(--text-white);
}

.badge-oem {
  background: var(--accent);
  color: var(--text-white);
}

.product-body {
  padding: 24px;
}

.product-brand {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.product-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}

.product-subtitle {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 16px;
}

.product-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 20px;
}

.product-spec {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-light);
}

.product-spec .spec-icon {
  color: var(--primary);
  font-size: 0.7rem;
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.product-warranty {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--success);
  font-weight: 600;
}

.product-cta {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.product-cta:hover {
  gap: 8px;
  color: var(--accent);
}

/* ---------- Why Choose Us ---------- */
.why-us { background: var(--bg-light); }

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.why-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  border: 1px solid transparent;
}

.why-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.why-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  margin-bottom: 20px;
}

.why-card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
}

.why-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ---------- Certifications ---------- */
.certifications {
  padding: 60px 0;
}

.cert-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.cert-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 24px 32px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  min-width: 140px;
}

.cert-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.cert-icon {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
}

.cert-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ---------- Testimonials ---------- */
.testimonials {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: var(--text-white);
  padding: 80px 0;
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.testimonial-card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
}

.testimonial-card:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-4px);
}

.testimonial-stars {
  color: var(--warning);
  margin-bottom: 16px;
  font-size: 1rem;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 24px;
  font-style: italic;
  opacity: 0.9;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}

.testimonial-info .name {
  font-weight: 600;
  font-size: 0.9rem;
}

.testimonial-info .role {
  font-size: 0.75rem;
  opacity: 0.6;
}

/* ---------- CTA Section ---------- */
.cta-section {
  background: linear-gradient(135deg, #0A1628, var(--primary-dark));
  padding: 80px 0;
  text-align: center;
}

.cta-section h2 {
  color: var(--text-white);
  margin-bottom: 16px;
}

.cta-section p {
  color: rgba(255,255,255,0.7);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 36px;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.cta-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #25D366;
  color: white;
  padding: 16px 36px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  transition: var(--transition);
  text-decoration: none;
}

.cta-whatsapp:hover {
  background: #1DA851;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37,211,102,0.3);
}

/* ---------- About Page ---------- */
.about-hero {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 140px 0 80px;
  color: var(--text-white);
  text-align: center;
}

.about-hero h1 { color: var(--text-white); }
.about-hero p { color: rgba(255,255,255,0.7); max-width: 600px; margin: 0 auto; font-size: 1.1rem; }

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0;
}

.about-text h2 { margin-bottom: 20px; }
.about-text p { color: var(--text-light); margin-bottom: 16px; }

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.about-highlight {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--primary-light);
  border-radius: var(--radius);
}

.about-highlight .icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

.about-highlight span {
  font-weight: 600;
  font-size: 0.9rem;
}

.about-image {
  background: var(--primary-light);
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  opacity: 0.4;
  font-size: 0.9rem;
}

.timeline {
  padding: 80px 0;
  background: var(--bg-light);
}

.timeline-items {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}

.timeline-items::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary-light);
}

.timeline-item {
  display: flex;
  gap: 32px;
  margin-bottom: 40px;
  position: relative;
}

/* ---------- Product Gallery (Multi-image) ---------- */
.product-gallery-main {
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--primary-light);
  margin-bottom: 12px;
}

.product-gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.3s ease;
}

.product-gallery-thumbs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.product-gallery-thumb {
  width: 64px;
  height: 64px;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  flex-shrink: 0;
}

.product-gallery-thumb:hover {
  border-color: var(--primary-light);
}

.product-gallery-thumb.active {
  border-color: var(--primary);
}

.product-gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 768px) {
  .product-gallery-thumb { width: 48px; height: 48px; }
}

.timeline-dot {
  width: 50px;
  height: 50px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.8rem;
  flex-shrink: 0;
  z-index: 1;
}

.timeline-content h3 {
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.timeline-content p {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* ---------- Contact Page ---------- */
.contact-hero {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 140px 0 80px;
  color: var(--text-white);
  text-align: center;
}

.contact-hero h1 { color: var(--text-white); }
.contact-hero p { color: rgba(255,255,255,0.7); max-width: 600px; margin: 0 auto; font-size: 1.1rem; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  padding: 80px 0;
}

.contact-info-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 20px;
  transition: var(--transition);
}

.contact-info-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-info-label {
  font-size: 0.8rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.contact-info-value {
  font-weight: 600;
  font-size: 0.95rem;
}

.contact-form-wrapper {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.contact-form-wrapper h3 {
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-family: var(--font-main);
  transition: var(--transition);
  background: var(--bg);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,86,179,0.1);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 0;
}

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

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand .logo-text { color: var(--text-white); }
.footer-brand .logo-text small { color: rgba(255,255,255,0.5); }

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  color: var(--text-white);
}

.footer h4 {
  color: var(--text-white);
  font-size: 1rem;
  margin-bottom: 20px;
}

.footer-links li { margin-bottom: 10px; }
.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: var(--transition);
}
.footer-links a:hover { color: var(--accent); padding-left: 4px; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
}

.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--accent); }

/* ---------- WhatsApp Float ---------- */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 12px;
}

.whatsapp-float .tooltip {
  background: var(--bg);
  color: var(--text);
  padding: 10px 18px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  white-space: nowrap;
  opacity: 0;
  transform: translateX(10px);
  transition: var(--transition);
}

.whatsapp-float:hover .tooltip {
  opacity: 1;
  transform: translateX(0);
}

.whatsapp-float a {
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.8rem;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  transition: var(--transition);
}

.whatsapp-float a:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(37,211,102,0.5);
}

/* ---------- Product Detail Page ---------- */
.product-detail {
  padding: 120px 0 80px;
}

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

.product-gallery {
  background: var(--primary-light);
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  opacity: 0.4;
}

.product-detail-info h1 {
  font-size: 2rem;
  margin-bottom: 8px;
}

.product-detail-brand {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.product-detail-desc {
  color: var(--text-light);
  margin-bottom: 32px;
  line-height: 1.8;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 32px;
}

.spec-table th,
.spec-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.spec-table th {
  font-weight: 600;
  color: var(--text);
  width: 40%;
  background: var(--bg-light);
}

.spec-table td { color: var(--text-light); }

.product-features {
  margin-bottom: 32px;
}

.product-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.9rem;
}

.product-features li .check {
  color: var(--success);
  font-weight: 700;
}

.product-service-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.service-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--primary-light);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  padding: 90px 0 20px;
  font-size: 0.85rem;
}

.breadcrumb a { color: var(--text-light); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { color: var(--text-light); margin: 0 8px; }
.breadcrumb .current { color: var(--primary); font-weight: 600; }

/* ---------- Page Hero ---------- */
.page-hero {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 140px 0 80px;
  color: var(--text-white);
  text-align: center;
}

.page-hero h1 { color: var(--text-white); margin-bottom: 16px; }
.page-hero p { color: rgba(255,255,255,0.7); max-width: 600px; margin: 0 auto; font-size: 1.1rem; }

/* ---------- Scroll to top ---------- */
.scroll-top {
  position: fixed;
  bottom: 100px;
  right: 34px;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 998;
  font-size: 1.2rem;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
}

/* ---------- Loading animation ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-desc { margin: 0 auto 36px; }
  .hero-stats { justify-content: center; }
  .hero-visual { display: none; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .about-content { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .product-detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }

  .nav-links { display: none; }
  .nav-cta { display: none; }
  .mobile-toggle { display: flex; }

  .nav.open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--bg);
    padding: 20px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }

  .nav.open .nav-cta {
    display: block;
    position: absolute;
    top: calc(80px + var(--nav-links-height, 200px));
    left: 0;
    right: 0;
    background: var(--bg);
    padding: 0 20px 20px;
    text-align: center;
  }

  .hero { min-height: 70vh; }
  .hero-stats { flex-direction: column; gap: 20px; align-items: center; }
  .stats-bar .container { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .category-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }

  .about-highlights { grid-template-columns: 1fr; }

  .whatsapp-float .tooltip { display: none; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }
  .hero-desc { font-size: 1rem; }
  .btn { padding: 12px 24px; font-size: 0.85rem; }
  .hero-stats .stat-item { text-align: center; }
  .stat-item .stat-number { font-size: 1.6rem; }
}

/* ---------- Product Image Placeholder Styles ---------- */
.product-img-placeholder {
  width: 100%;
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent-light) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--primary);
  opacity: 0.6;
}

.product-img-placeholder svg {
  width: 48px;
  height: 48px;
}

.product-img-placeholder span {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}