/* =============================================
   Lydis Product Website - Main Stylesheet
   ============================================= */

/* CSS Variables */
:root {
  --primary: #0057B8;
  --primary-dark: #003D8F;
  --primary-light: #E8F0FB;
  --accent: #00A8E8;
  --accent2: #FF6B35;
  --dark: #1A1A2E;
  --dark2: #16213E;
  --gray-900: #111827;
  --gray-700: #374151;
  --gray-500: #6B7280;
  --gray-300: #D1D5DB;
  --gray-100: #F3F4F6;
  --white: #FFFFFF;
  --nav-height: 70px;
  --transition: 0.3s ease;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.16);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Noto Sans KR', 'Inter', sans-serif;
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* =============================================
   NAVIGATION
   ============================================= */
#main-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  z-index: 1000;
  transition: box-shadow var(--transition);
}
#main-nav.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.5px;
  text-decoration: none;
}
.nav-logo .logo-img {
  width: 32px;
  height: auto;
  display: block;
  flex-shrink: 0;
}
/* legacy logo-mark (fallback) */
.nav-logo .logo-mark {
  display: none;
}

/* Desktop Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0;
}
.nav-item {
  position: relative;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 1.1rem;
  height: var(--nav-height);
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--gray-700);
  transition: color var(--transition);
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active { color: var(--primary); }
.nav-link i { font-size: 0.7rem; transition: transform var(--transition); }
.nav-item:hover .nav-link i { transform: rotate(180deg); }

/* Dropdown */
.dropdown {
  position: absolute;
  top: calc(var(--nav-height) - 4px);
  left: 50%;
  transform: translateX(-50%);
  background: white;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 180px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(-8px);
  transition: all var(--transition);
  z-index: 200;
}
.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.dropdown a {
  display: block;
  padding: 0.6rem 1.2rem;
  font-size: 0.875rem;
  color: var(--gray-700);
  transition: all var(--transition);
  white-space: nowrap;
}
.dropdown a:hover {
  background: var(--primary-light);
  color: var(--primary);
  padding-left: 1.5rem;
}

/* Nav Right */
.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.lang-toggle {
  display: flex;
  gap: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-500);
}
.lang-toggle a { padding: 2px 6px; border-radius: 4px; transition: all var(--transition); }
.lang-toggle a.active, .lang-toggle a:hover {
  color: var(--primary);
  background: var(--primary-light);
}
.lang-sep { color: var(--gray-300); }

.btn-contact-nav {
  background: var(--primary);
  color: white !important;
  padding: 8px 18px !important;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  height: auto !important;
  transition: background var(--transition);
}
.btn-contact-nav:hover { background: var(--primary-dark) !important; }
.btn-corporate-nav {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--gray-400) !important;
  display: inline-flex;
  align-items: center;
  gap: 0.28rem;
  transition: color var(--transition);
  white-space: nowrap;
}
.btn-corporate-nav:hover { color: var(--primary) !important; }

/* Mobile Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--gray-700);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: var(--nav-height);
  left: 0; right: 0;
  background: white;
  border-bottom: 1px solid var(--gray-300);
  box-shadow: var(--shadow-lg);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  z-index: 999;
}
.mobile-menu.open { max-height: 600px; }
.mobile-menu-inner { padding: 1rem 1.5rem 1.5rem; }
.mobile-nav-group { margin-bottom: 1rem; }
.mobile-nav-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gray-500);
  margin-bottom: 0.5rem;
}
.mobile-nav-group a {
  display: block;
  padding: 0.5rem 0.5rem;
  color: var(--gray-700);
  font-size: 0.9rem;
  border-radius: 4px;
  transition: all var(--transition);
}
.mobile-nav-group a:hover { color: var(--primary); background: var(--primary-light); }

/* =============================================
   HERO SECTION
   ============================================= */
#hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--dark2) 0%, var(--dark) 50%, #0A2463 100%);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
}
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(0,87,184,0.3) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(0,168,232,0.2) 0%, transparent 50%);
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0,87,184,0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,87,184,0.1) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.4;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  width: 100%;
}
.hero-text { color: 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);
  color: var(--accent);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.6s ease;
}
.hero-badge i { font-size: 0.7rem; }
.hero-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.2rem;
  animation: fadeInUp 0.7s ease;
}
.hero-title .highlight {
  background: linear-gradient(90deg, var(--accent), #00D4FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-kicker {
  font-size: 1rem;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  letter-spacing: 0.03em;
  margin-bottom: 0.5rem;
}
.hero-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
  margin-bottom: 2rem;
  animation: fadeInUp 0.8s ease;
}
.hero-btns {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeInUp 0.9s ease;
}
.btn-primary {
  background: var(--primary);
  color: white;
  padding: 0.85rem 2rem;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: all var(--transition);
  display: inline-flex; align-items: center; gap: 8px;
}
.btn-primary:hover { background: var(--accent); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,87,184,0.4); }
.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.3);
  padding: 0.85rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition);
  display: inline-flex; align-items: center; gap: 8px;
}
.btn-outline:hover { border-color: white; background: rgba(255,255,255,0.1); }

/* Hero Visual */
.hero-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  animation: fadeInRight 0.8s ease;
}
.hero-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  backdrop-filter: blur(8px);
  transition: all var(--transition);
}
.hero-card:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }
.hero-card.large { grid-column: 1 / -1; }
.hero-card-icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1rem;
  font-size: 1.3rem;
  color: white;
}
.hero-card h3 { color: white; font-size: 1rem; font-weight: 700; margin-bottom: 0.4rem; }
.hero-card p { color: rgba(255,255,255,0.6); font-size: 0.8rem; line-height: 1.5; }
.hero-card .tag {
  display: inline-block;
  background: rgba(0,168,232,0.2);
  color: var(--accent);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  margin-top: 0.5rem;
}

/* =============================================
   SECTIONS COMMON
   ============================================= */
section { padding: 5rem 0; }
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}
.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}
.section-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 4px 14px;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 0.8rem;
  line-height: 1.25;
}
.section-desc {
  font-size: 1rem;
  color: var(--gray-500);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* =============================================
   PRODUCT CATEGORIES (HOME)
   ============================================= */
#product-overview {
  background: var(--gray-100);
}
.category-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}
.cat-tab {
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-500);
  background: white;
  border: 1px solid var(--gray-300);
  transition: all var(--transition);
  cursor: pointer;
}
.cat-tab.active, .cat-tab:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(0,87,184,0.25);
}
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}
.product-card {
  background: white;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  cursor: pointer;
  border: 1px solid var(--gray-300);
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.product-card-img {
  height: 200px;
  background: linear-gradient(135deg, #E8F0FB 0%, #D0E4FF 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  position: relative;
  overflow: hidden;
}
.product-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(0,87,184,0.05) 100%);
}
.product-card-body { padding: 1.25rem; }
.product-cat-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--primary);
  margin-bottom: 0.4rem;
}
.product-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.5rem;
}
.product-card p {
  font-size: 0.83rem;
  color: var(--gray-500);
  line-height: 1.5;
  margin-bottom: 0.75rem;
}
.product-card-link-wrap {
  display: block;
  text-decoration: none;
  color: inherit;
  height: 100%;
}
.product-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--primary);
  transition: gap var(--transition);
}
.product-card-link:hover { gap: 10px; }

/* =============================================
   SOLUTIONS SECTION (HOME)
   ============================================= */
#solutions-home {
  background: white;
}
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.solution-card {
  display: block;
  background: var(--gray-100);
  border-radius: var(--radius-md);
  padding: 2rem;
  border: 1px solid transparent;
  transition: all var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}
.solution-card:hover {
  background: white;
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.sol-icon {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  color: white;
  margin-bottom: 1.2rem;
}
.solution-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.5rem;
}
.solution-card p {
  font-size: 0.875rem;
  color: var(--gray-500);
  line-height: 1.6;
}
.solution-card .sol-features {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.sol-feat-tag {
  background: var(--primary-light);
  color: var(--primary);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
}

/* =============================================
   STATS SECTION
   ============================================= */
#stats {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: white;
  padding: 4rem 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}
.stat-item {}
.stat-num {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 0.3rem;
  background: linear-gradient(90deg, white, rgba(255,255,255,0.8));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size: 0.9rem; color: rgba(255,255,255,0.75); font-weight: 500; }

/* =============================================
   PAGE HERO (Sub pages)
   ============================================= */
.page-hero {
  background: linear-gradient(135deg, var(--dark2), var(--dark));
  padding: calc(var(--nav-height) + 3rem) 0 3rem;
  color: white;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(0,87,184,0.3) 0%, transparent 60%);
}
.page-hero .container { position: relative; z-index: 2; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 1rem;
}
.breadcrumb a { color: rgba(255,255,255,0.5); transition: color var(--transition); }
.breadcrumb a:hover { color: white; }
.breadcrumb i { font-size: 0.65rem; }
.page-hero h1 {
  font-size: clamp(1.8rem, 3vw, 3rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
}
.page-hero p {
  font-size: 1rem;
  color: rgba(255,255,255,0.7);
  max-width: 600px;
  line-height: 1.7;
}

/* =============================================
   PRODUCT DETAIL SECTIONS
   ============================================= */
.product-section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--gray-100);
}
.product-section:nth-child(even) { background: var(--gray-100); }

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.product-detail-grid.reverse { direction: rtl; }
.product-detail-grid.reverse > * { direction: ltr; }

.product-visual {
  background: linear-gradient(135deg, #E8F0FB, #D0E4FF);
  border-radius: var(--radius-lg);
  min-height: 360px;
  height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 8rem;
  position: relative;
  overflow: visible;
}
.product-visual::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 40%;
  background: linear-gradient(to top, rgba(0,87,184,0.08), transparent);
}
.product-visual.no-bg {
  background: transparent !important;
  border-radius: 0 !important;
  min-height: unset !important;
}
.product-visual.no-bg::after {
  display: none !important;
}

/* TV Using Cases card — Demo Kit effect */
.usecase-card:hover {
  border-color: var(--primary) !important;
  box-shadow: var(--shadow-md) !important;
  transform: translateY(-4px);
}

.product-info {}
.product-category-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.product-info h2 {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}
.product-subtitle {
  font-size: 1rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 1rem;
}
.product-desc {
  font-size: 0.925rem;
  color: var(--gray-700);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}
.product-features {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--gray-700);
}
.feature-item i {
  color: var(--primary);
  margin-top: 2px;
  flex-shrink: 0;
  font-size: 0.8rem;
}

/* Specs Table */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-size: 0.85rem;
}
.specs-table tr { border-bottom: 1px solid var(--gray-100); }
.specs-table td:first-child {
  color: var(--gray-500);
  font-weight: 600;
  padding: 8px 16px 8px 0;
  width: 40%;
}
.specs-table td:last-child {
  color: var(--dark);
  padding: 8px 0;
}

/* Sub product nav */
.sub-product-nav {
  background: white;
  border-bottom: 1px solid var(--gray-300);
  position: sticky;
  top: var(--nav-height);
  z-index: 100;
}
.sub-nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.sub-nav-inner::-webkit-scrollbar { display: none; }
.sub-nav-link {
  display: block;
  padding: 1rem 1.4rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-500);
  border-bottom: 3px solid transparent;
  white-space: nowrap;
  transition: all var(--transition);
}
.sub-nav-link:hover { color: var(--primary); }
.sub-nav-link.active { color: var(--primary); border-bottom-color: var(--primary); }

/* =============================================
   SOLUTIONS PAGE
   ============================================= */
.solutions-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
.solution-detail-card {
  background: white;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-300);
  transition: all var(--transition);
}
.solution-detail-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: var(--primary); }
.sol-card-header {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  padding: 1.5rem;
  color: white;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.sol-card-icon { font-size: 2rem; }
.sol-card-header h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.3rem; }
.sol-card-header p { font-size: 0.8rem; opacity: 0.85; }
.sol-card-body { padding: 1.5rem; }
.sol-card-body ul { display: flex; flex-direction: column; gap: 0.5rem; }
.sol-card-body li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--gray-700);
}
.sol-card-body li i { color: var(--primary); margin-top: 3px; font-size: 0.75rem; }

/* Platform cards */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}
.platform-card {
  background: white;
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
  border: 1px solid var(--gray-300);
  transition: all var(--transition);
}
.platform-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.platform-logo {
  width: 80px; height: 80px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1rem;
  font-size: 2.5rem;
}
.platform-card h3 { font-size: 1rem; font-weight: 700; color: var(--dark); margin-bottom: 0.5rem; }
.platform-card p { font-size: 0.83rem; color: var(--gray-500); line-height: 1.5; }

/* =============================================
   CONTACT PAGE
   ============================================= */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
  align-items: start;
}
.contact-info-box {
  background: var(--gray-100);
  border-radius: var(--radius-md);
  padding: 2.5rem;
}
.contact-info-box h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1.5rem;
}
.contact-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.contact-item-icon {
  width: 44px; height: 44px;
  background: var(--primary);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: white;
  font-size: 1rem;
  flex-shrink: 0;
}
.contact-item h4 { font-size: 0.8rem; color: var(--gray-500); font-weight: 600; margin-bottom: 0.2rem; }
.contact-item p { font-size: 0.925rem; color: var(--dark); font-weight: 500; }

.contact-form {
  background: white;
  border-radius: var(--radius-md);
  padding: 2.5rem;
  border: 1px solid var(--gray-300);
}
.contact-form h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1.5rem;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.form-group { margin-bottom: 1rem; }
.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 0.4rem;
}
.form-group label span { color: #EF4444; }
.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--dark);
  transition: border-color var(--transition);
  background: white;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,87,184,0.1);
}
textarea.form-control { resize: vertical; min-height: 120px; }
select.form-control { cursor: pointer; }
.btn-submit {
  width: 100%;
  background: var(--primary);
  color: white;
  padding: 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 700;
  transition: all var(--transition);
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.btn-submit:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,87,184,0.3); }

/* =============================================
   FOOTER
   ============================================= */
#main-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding: 4rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-brand .logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 800;
  color: white;
  margin-bottom: 0.75rem;
}
.footer-brand .logo .logo-img-footer {
  width: 28px;
  height: auto;
  display: block;
  filter: brightness(0) invert(1);
}
.footer-brand p { font-size: 0.85rem; line-height: 1.7; }
.footer-col h4 { color: white; font-size: 0.875rem; font-weight: 700; margin-bottom: 1rem; }
.footer-col ul { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-col a { font-size: 0.85rem; transition: color var(--transition); }
.footer-col a:hover { color: white; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
}

/* =============================================
   ANIMATIONS
   ============================================= */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--dark);
  color: white;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex; align-items: center; gap: 0.75rem;
  z-index: 9999;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast i { color: #10B981; font-size: 1.2rem; }

/* Scroll to top */
#scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px; height: 44px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  z-index: 500;
}
#scroll-top.show { opacity: 1; visibility: visible; }
#scroll-top:hover { background: var(--primary-dark); transform: translateY(-4px); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .solutions-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
  .platform-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-menu { display: none; }
  .hamburger { display: flex; }
  .btn-contact-nav { display: none; }
  .lang-toggle { display: none; }
  .hero-content { grid-template-columns: 1fr; gap: 2rem; text-align: center; }
  .hero-btns { justify-content: center; }
  .hero-visual { display: none; }
  .product-detail-grid { grid-template-columns: 1fr; }
  .product-detail-grid.reverse { direction: ltr; }
  .solutions-grid { grid-template-columns: 1fr; }
  .solutions-detail-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
  .platform-grid { grid-template-columns: 1fr; }
  section { padding: 3.5rem 0; }
}
@media (max-width: 480px) {
  .container { padding: 0 1.2rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: 1fr; }
}
@media (max-width: 1024px) {
  .product-section [style*="grid-template-columns:1fr 1fr"],
  .product-section [style*="grid-template-columns:repeat(3,1fr)"],
  .product-section [style*="grid-template-columns:repeat(4,1fr)"] {
    grid-template-columns: 1fr !important;
  }
}
@media (max-width: 640px) {
  #mg-viewer-wrap {
    padding: 1.5rem !important;
    min-height: auto !important;
  }
  #mg-thumb-grid {
    grid-template-columns: 1fr 1fr !important;
  }
}
@media (max-width: 1024px) {
  .product-section [style*="grid-template-columns:1.2fr 1fr 1fr"],
  .product-section [style*="grid-template-columns:1fr 1fr"],
  .product-section [style*="grid-template-columns:repeat(3,1fr)"],
  .config-card {
    grid-template-columns: 1fr !important;
  }
}
@media (max-width: 640px) {
  .page-hero p {
    font-size: 0.9rem;
    line-height: 1.6;
  }
  .sub-nav-inner {
    overflow-x: auto;
    white-space: nowrap;
  }
}

/* =============================================
   LINK WRAP & CARD ANCHOR RESET
   ============================================= */
.product-card-link-wrap,
.solution-card {
  display: block;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

/* =============================================
   RESPONSIVE - INLINE GRID OVERRIDE
   ============================================= */
@media (max-width: 1024px) {
  section [style*="grid-template-columns:1.2fr 1fr 1fr"],
  section [style*="grid-template-columns:1fr auto"],
  section [style*="grid-template-columns:1.1fr 1fr"],
  section [style*="grid-template-columns:1fr 1fr"],
  section [style*="grid-template-columns:repeat(3,1fr)"],
  section [style*="grid-template-columns:1.6fr 1fr"],
  .config-card {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 640px) {
  .sub-nav-inner {
    overflow-x: auto;
    white-space: nowrap;
  }
}

@media (max-width: 640px) {
  .cms-mock-body {
    grid-template-columns: 1fr;
    height: auto;
  }

  .cms-sidebar {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .cms-row {
    grid-template-columns: 1fr;
  }

  .platform-card-large {
    padding: 1.5rem;
  }
}

@media (max-width: 1024px) {
  .product-section [style*="grid-template-columns:1fr 1fr"],
  .product-section [style*="grid-template-columns:repeat(3,1fr)"],
  .product-section [style*="grid-template-columns:repeat(4,1fr)"] {
    grid-template-columns: 1fr !important;
  }

  #mg-thumb-grid {
    grid-template-columns: 1fr 1fr !important;
  }

  #mg-viewer-wrap {
    padding: 2rem !important;
  }
}

@media (max-width: 640px) {
  .sub-nav-inner {
    overflow-x: auto;
    white-space: nowrap;
  }

  #mg-thumb-grid {
    grid-template-columns: 1fr !important;
  }
}