/* ============================================
   TRANSFRIO - Industrial Drying Equipment
   Global Stylesheet
   Color Scheme: Orange + Blue on Dark BG
   ============================================ */

/* ---------- Google Fonts Import ---------- */
@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;500;600;700&family=Roboto:wght@300;400;500;700&family=Open+Sans:wght@300;400;500;600;700&display=swap');

/* ---------- CSS Variables ---------- */
:root {
  /* Primary Colors */
  --color-orange: #FF6B35;
  --color-orange-light: #FF8C5A;
  --color-orange-dark: #E55A2B;
  --color-blue: #0077CC;
  --color-blue-light: #3399DD;
  --color-blue-dark: #005A9C;

  /* Background Colors */
  --bg-primary: #0D1117;
  --bg-secondary: #1A1F2E;
  --bg-tertiary: #161B22;
  --bg-card: #1C2333;
  --bg-card-hover: #222D40;

  /* Text Colors */
  --text-primary: #E6EDF3;
  --text-secondary: #8B949E;
  --text-muted: #6A737D;

  /* Border & Accent */
  --border-color: #30363D;
  --border-light: #3D444D;

  /* Status Colors */
  --color-green: #3FB950;
  --color-yellow: #D29922;
  --color-red: #F85149;

  /* Gradients */
  --gradient-orange: linear-gradient(135deg, #FF6B35, #FF8C5A);
  --gradient-blue: linear-gradient(135deg, #0077CC, #3399DD);
  --gradient-hero: linear-gradient(135deg, rgba(13,17,23,0.95) 0%, rgba(26,31,46,0.9) 100%);
  --gradient-dark: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  --gradient-card: linear-gradient(145deg, var(--bg-card) 0%, var(--bg-tertiary) 100%);

  /* Typography */
  --font-heading: 'Oswald', sans-serif;
  --font-body: 'Open Sans', sans-serif;
  --font-accent: 'Roboto', sans-serif;

  /* Spacing */
  --container-max: 1200px;
  --section-padding: 100px 0;
  --section-padding-sm: 60px 0;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --shadow-orange-glow: 0 0 20px rgba(255,107,53,0.3), 0 0 60px rgba(255,107,53,0.1);
  --shadow-blue-glow: 0 0 20px rgba(0,119,204,0.3);

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Subtle grid pattern overlay for industrial feel */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(255,107,53,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,107,53,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

a {
  color: var(--color-blue-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-orange);
}

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: 600;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: clamp(32px, 5vw, 56px); letter-spacing: 1px; }
h2 { font-size: clamp(26px, 4vw, 40px); letter-spacing: 0.5px; }
h3 { font-size: clamp(20px, 3vw, 28px); letter-spacing: 0.3px; }
h4 { font-size: 18px; }

p {
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ---------- Utility Classes ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section {
  padding: var(--section-padding);
  position: relative;
  z-index: 1;
}

.section-sm {
  padding: var(--section-padding-sm);
  position: relative;
  z-index: 1;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-orange { color: var(--color-orange); }
.text-blue { color: var(--color-blue-light); }
.text-green { color: var(--color-green); }

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Section Title Component */
.section-title {
  text-align: center;
  margin-bottom: 60px;
  position: relative;
}

.section-title h2 {
  display: inline-block;
  position: relative;
  margin-bottom: 16px;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--gradient-orange);
  border-radius: 2px;
}

.section-title p {
  max-width: 650px;
  margin: 20px auto 0;
  font-size: 16px;
}

/* Accent Line (45-degree cut for industrial look) */
.accent-line {
  width: 80px;
  height: 3px;
  background: var(--gradient-orange);
  margin: 12px 0;
  position: relative;
}

.accent-line::before {
  content: '';
  position: absolute;
  right: -8px;
  top: -4px;
  width: 11px;
  height: 11px;
  background: var(--color-orange);
  transform: rotate(45deg);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-orange);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-orange-glow);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--color-orange);
  border: 2px solid var(--color-orange);
}

.btn-secondary:hover {
  background: var(--color-orange);
  color: #fff;
  transform: translateY(-2px);
}

.btn-blue {
  background: var(--gradient-blue);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn-blue:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-blue-glow);
  color: #fff;
}

.btn-sm {
  padding: 10px 22px;
  font-size: 13px;
}

.btn-lg {
  padding: 18px 42px;
  font-size: 16px;
}

/* ============================================
   NAVIGATION BAR
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 24px;
  transition: all var(--transition-normal);
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(13, 17, 23, 0.97);
  border-bottom-color: var(--border-color);
  box-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.nav-logo img {
  height: 42px;
  width: auto;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: block;
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: capitalize;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  border-bottom-color: var(--color-orange);
}

.nav-link.active {
  color: var(--color-orange);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Language Selector */
.lang-selector {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 13px;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn:hover {
  border-color: var(--color-orange);
  color: var(--text-primary);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 120px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
  z-index: 100;
}

.lang-dropdown.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-dropdown a {
  display: block;
  padding: 10px 18px;
  font-size: 14px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  border-bottom: 1px solid var(--border-color);
}

.lang-dropdown a:last-child {
  border-bottom: none;
}

.lang-dropdown a:hover {
  background: var(--bg-tertiary);
  color: var(--color-orange);
}

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  cursor: pointer;
  z-index: 1001;
  background: none;
  border: none;
  padding: 0;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-normal);
  border-radius: 2px;
  origin: center;
}

.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 Overlay */
.mobile-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.mobile-overlay.show {
  opacity: 1;
  visibility: visible;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  max-width: 85vw;
  height: 100vh;
  background: var(--bg-secondary);
  z-index: 999;
  padding: 90px 24px 30px;
  overflow-y: auto;
  transition: right var(--transition-normal);
  border-left: 1px solid var(--border-color);
}

.mobile-menu.show {
  right: 0;
}

.mobile-menu .nav-link {
  padding: 14px 0;
  font-size: 16px;
  border-bottom: 1px solid var(--border-color);
  border-bottom-style: dashed;
}

.mobile-menu .lang-selector {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

/* ============================================
   HERO BANNER / CAROUSEL
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  margin-top: 72px;
}

.hero-carousel {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

/* CSS-generated placeholder backgrounds for hero slides */
.hero-slide-bg.slide-1 {
  background:
    linear-gradient(135deg, rgba(255,107,53,0.15) 0%, transparent 50%),
    linear-gradient(225deg, rgba(0,119,204,0.15) 0%, transparent 50%),
    repeating-linear-gradient(
      45deg,
      var(--bg-secondary),
      var(--bg-secondary) 40px,
      var(--bg-tertiary) 40px,
      var(--bg-tertiary) 80px
    );
  background-color: var(--bg-primary);
}

.hero-slide-bg.slide-2 {
  background:
    radial-gradient(ellipse at 30% 50%, rgba(0,119,204,0.2) 0%, transparent 60%),
    repeating-linear-gradient(
      -45deg,
      var(--bg-secondary),
      var(--bg-secondary) 60px,
      rgba(255,107,53,0.05) 60px,
      rgba(255,107,53,0.05) 61px
    );
  background-color: var(--bg-primary);
}

.hero-slide-bg.slide-3 {
  background:
    linear-gradient(180deg, rgba(255,107,53,0.08) 0%, transparent 40%),
    linear-gradient(0deg, rgba(0,119,204,0.1) 0%, transparent 50%),
    conic-gradient(from 180deg at 70% 30%, rgba(255,107,53,0.06) 0deg, transparent 120deg, rgba(0,119,204,0.06) 240deg, transparent 360deg);
  background-color: var(--bg-primary);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(13, 17, 23, 0.92) 0%,
    rgba(13, 17, 23, 0.75) 50%,
    rgba(26, 31, 46, 0.88) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 850px;
  padding: 0 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(255,107,53,0.12);
  border: 1px solid rgba(255,107,53,0.3);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-orange);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--color-orange);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--color-orange-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(16px, 2.5vw, 22px);
  color: var(--text-secondary);
  margin-bottom: 40px;
  font-weight: 300;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Carousel Indicators */
.carousel-indicators {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 3;
}

.carousel-dot {
  width: 40px;
  height: 4px;
  background: rgba(255,255,255,0.25);
  border: none;
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--transition-normal);
  padding: 0;
}

.carousel-dot.active {
  width: 60px;
  background: var(--color-orange);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  animation: bounce-down 2s infinite;
  display: none;
}

.scroll-indicator svg {
  width: 24px;
  height: 24px;
  stroke: var(--text-muted);
}

@keyframes bounce-down {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(10px); }
  60% { transform: translateX(-50%) translateY(5px); }
}

/* ============================================
   STATS BAR
   ============================================ */
.stats-bar {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 60px 0;
  position: relative;
  z-index: 1;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.stat-item {
  text-align: center;
  padding: 20px;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 700;
  color: var(--color-orange);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-number .suffix {
  font-size: 0.5em;
  color: var(--color-blue-light);
}

.stat-label {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.stat-divider {
  width: 1px;
  background: var(--border-color);
  align-self: stretch;
}

/* ============================================
   CARDS
   ============================================ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  position: relative;
}

.card:hover {
  transform: translateY(-6px);
  border-color: var(--color-orange);
  box-shadow: var(--shadow-orange-glow);
}

.card-image {
  position: relative;
  height: 220px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* CSS placeholder images with different patterns */
.card-image.placeholder-1 {
  background:
    linear-gradient(135deg, rgba(255,107,53,0.15), rgba(0,119,204,0.1)),
    repeating-linear-gradient(45deg, var(--bg-tertiary), var(--bg-tertiary) 10px, var(--bg-secondary) 10px, var(--bg-secondary) 20px);
}

.card-image.placeholder-2 {
  background:
    radial-gradient(circle at 50% 50%, rgba(0,119,204,0.15), transparent 70%),
    repeating-linear-gradient(-45deg, var(--bg-tertiary), var(--bg-tertiary) 10px, var(--bg-secondary) 10px, var(--bg-secondary) 20px);
}

.card-image.placeholder-3 {
  background:
    conic-gradient(from 0deg at 50% 50%, rgba(255,107,53,0.08) 0deg, transparent 90deg, rgba(0,119,204,0.08) 180deg, transparent 270deg, rgba(255,107,53,0.08) 360deg),
    var(--bg-tertiary);
}

.card-image.placeholder-4 {
  background:
    linear-gradient(180deg, rgba(255,107,53,0.1) 0%, transparent 50%, rgba(0,119,204,0.1) 100%),
    repeating-conic-gradient(var(--bg-tertiary) 0deg, var(--bg-secondary) 4deg, var(--bg-tertiary) 8deg);
}

.card-image.placeholder-5 {
  background:
    radial-gradient(ellipse at 30% 30%, rgba(255,107,53,0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 70%, rgba(0,119,204,0.12) 0%, transparent 50%),
    var(--bg-tertiary);
}

.card-image.placeholder-6 {
  background:
    linear-gradient(135deg, rgba(0,119,204,0.12) 25%, transparent 25%),
    linear-gradient(225deg, rgba(255,107,53,0.12) 25%, transparent 25%),
    var(--bg-tertiary);
  background-size: 40px 40px;
  background-position: 0 0, 20px 20px;
}

/* SVG Icon in card image area */
.card-image svg {
  width: 64px;
  height: 64px;
  opacity: 0.5;
}

.card-body {
  padding: 24px;
}

.card-tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-orange);
  background: rgba(255,107,53,0.1);
  border: 1px solid rgba(255,107,53,0.2);
  border-radius: 50px;
  margin-bottom: 12px;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-orange);
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all var(--transition-fast);
}

.card-link:hover {
  gap: 12px;
  color: var(--color-orange-light);
}

.card-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.card-link:hover svg {
  transform: translateX(4px);
}

/* ============================================
   FEATURES / WHY CHOOSE US
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  align-items: center;
}

.feature-item {
  display: flex;
  gap: 24px;
  padding: 30px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.feature-item:hover {
  border-color: rgba(255,107,53,0.3);
  background: var(--bg-card-hover);
}

.feature-icon {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,107,53,0.1);
  border: 1px solid rgba(255,107,53,0.2);
  border-radius: var(--radius-md);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--color-orange);
}

.feature-text h4 {
  font-family: var(--font-heading);
  font-size: 18px;
  margin-bottom: 8px;
}

.feature-text p {
  font-size: 14px;
  line-height: 1.7;
}

/* Alternating layout */
.features-alt .feature-item:nth-child(even) {
  direction: rtl;
}

.features-alt .feature-item:nth-child(even) > * {
  direction: ltr;
}

/* ============================================
   CTA BANNER
   ============================================ */
.cta-banner {
  background:
    linear-gradient(135deg, rgba(255,107,53,0.1) 0%, rgba(0,119,204,0.08) 100%),
    var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 80px 0;
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-orange);
}

.cta-banner h2 {
  margin-bottom: 16px;
}

.cta-banner p {
  max-width: 550px;
  margin: 0 auto 32px;
  font-size: 17px;
}

/* ============================================
   PAGE HEADER (Inner Pages)
   ============================================ */
.page-header {
  margin-top: 72px;
  padding: 80px 0 50px;
  background:
    linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-bottom: 1px solid var(--border-color);
  position: relative;
  z-index: 1;
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-orange), transparent);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.breadcrumb a {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--color-orange);
}

.breadcrumb .separator {
  color: var(--border-color);
}

.page-header h1 {
  font-size: clamp(32px, 5vw, 48px);
}

.page-header .accent-line {
  margin-top: 16px;
}

/* ============================================
   ABOUT PAGE SPECIFIC
   ============================================ */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.about-intro-text h2 {
  margin-bottom: 20px;
}

.about-intro-text .accent-line {
  margin-bottom: 24px;
}

.about-intro-text p {
  margin-bottom: 16px;
  font-size: 15px;
}

.about-guide-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-orange);
  margin-bottom: 12px;
  line-height: 1.8;
}

.video-placeholder {
  aspect-ratio: 16/9;
  background:
    linear-gradient(135deg, rgba(255,107,53,0.08), rgba(0,119,204,0.06)),
    repeating-linear-gradient(45deg, var(--bg-card), var(--bg-card) 20px, var(--bg-tertiary) 20px, var(--bg-tertiary) 40px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.video-placeholder:hover {
  border-color: var(--color-orange);
  box-shadow: var(--shadow-orange-glow);
}

.video-play-btn {
  width: 72px;
  height: 72px;
  background: var(--gradient-orange);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
}

.video-placeholder:hover .video-play-btn {
  transform: scale(1.1);
  box-shadow: var(--shadow-orange-glow);
}

.video-play-btn svg {
  width: 28px;
  height: 28px;
  fill: #fff;
  margin-left: 4px;
}

.video-placeholder p {
  font-size: 14px;
  color: var(--text-muted);
}

/* Data Highlights */
.data-highlights {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.data-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.data-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-orange);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

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

.data-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,107,53,0.3);
}

.data-card-number {
  font-family: var(--font-heading);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 700;
  color: var(--color-orange);
  line-height: 1;
  margin-bottom: 8px;
}

.data-card-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Culture/Values Grid */
.culture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.culture-card {
  padding: 36px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-normal);
  position: relative;
}

.culture-card:hover {
  border-color: var(--color-blue);
  box-shadow: 0 0 30px rgba(0,119,204,0.1);
}

.culture-card-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  background: rgba(0,119,204,0.1);
  border: 1px solid rgba(0,119,204,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.culture-card-icon svg {
  width: 26px;
  height: 26px;
  stroke: var(--color-blue-light);
}

.culture-card h4 {
  font-family: var(--font-heading);
  font-size: 18px;
  margin-bottom: 12px;
}

.culture-card p {
  font-size: 14px;
  line-height: 1.7;
}



/* ============================================
   PRODUCTS PAGE - TABS & FILTERING
   ============================================ */
.tabs-wrapper {
  margin-bottom: 40px;
}

.tabs-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 0;
}

.tab-btn {
  padding: 10px 22px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-transform: capitalize;
}

.tab-btn:hover {
  border-color: var(--color-orange);
  color: var(--text-primary);
}

.tab-btn.active {
  background: var(--gradient-orange);
  color: #fff;
  border-color: var(--color-orange);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Product Card (enhanced) */
.product-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.product-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-orange);
  box-shadow: var(--shadow-orange-glow);
}

.product-card-image {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.product-card-image .product-icon {
  width: 80px;
  height: 80px;
  opacity: 0.35;
  transition: all var(--transition-normal);
}

.product-card-image img.product-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.product-card:hover .product-card-image img.product-card-img {
  transform: scale(1.05);
}

.product-card:hover .product-icon {
  opacity: 0.55;
  transform: scale(1.1);
}

.product-card-info {
  padding: 24px;
}

.product-card-info h4 {
  font-family: var(--font-heading);
  font-size: 18px;
  margin-bottom: 8px;
}

.product-card-info p {
  font-size: 14px;
  margin-bottom: 16px;
  line-height: 1.6;
}

.product-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.product-spec-tag {
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 500;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  color: var(--text-muted);
}

/* ============================================
   PRODUCT CATEGORY ENTRY GRID (Products Page)
   ============================================ */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.category-entry-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.category-entry-card:hover {
  border-color: var(--color-orange);
  box-shadow: 0 8px 32px rgba(255, 107, 53, 0.12);
  transform: translateY(-2px);
}

.category-entry-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 107, 53, 0.1);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.category-entry-card:nth-child(2) .category-entry-icon {
  background: rgba(0, 119, 204, 0.1);
}

.category-entry-card:nth-child(3) .category-entry-icon {
  background: rgba(63, 185, 80, 0.1);
}

.category-entry-icon svg {
  width: 40px;
  height: 40px;
}

.category-entry-content h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.category-entry-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 8px 0 0 0;
  min-height: 160px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 6;
  -webkit-box-orient: vertical;
}

.category-entry-content .btn {
  margin-top: 16px;
}

/* ============================================
   PRODUCT LIST PAGE (category.html)
   ============================================ */
.product-list {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--border-color);
}

.product-list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.product-list-header h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.product-count {
  font-size: 14px;
  color: var(--text-secondary);
}

.product-table-container {
  overflow-x: auto;
}

.product-table {
  width: 100%;
  border-collapse: collapse;
}

.product-table th,
.product-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.product-table th {
  background: var(--bg-light);
  font-weight: 600;
  font-size: 14px;
  color: var(--text-primary);
  white-space: nowrap;
}

.product-table td {
  font-size: 14px;
  color: var(--text-secondary);
}

.product-table tr:hover {
  background: rgba(255, 107, 53, 0.04);
}

.product-link {
  color: var(--color-orange);
  text-decoration: none;
  font-weight: 500;
}

.product-link:hover {
  text-decoration: underline;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 13px;
}

/* ============================================
   PRODUCT DETAIL PAGE (product.html)
   ============================================ */
.product-detail {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--border-color);
}

.product-detail-header {
  display: flex;
  gap: 24px;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
}

.product-image-carousel {
  width: 560px;
  height: 400px;
  background: var(--bg-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.carousel-wrapper {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.carousel-slides {
  display: flex;
  width: 100%;
  height: 100%;
  transition: transform 0.4s ease;
}

.carousel-slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  display: none;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: 0;
  left: 0;
}

.carousel-slide.active {
  display: flex;
}

.carousel-slide img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.carousel-prev,
.carousel-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  background: rgba(0, 0, 0, 0.6);
  border: none;
  border-radius: 50%;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
  z-index: 10;
}

.carousel-prev:hover,
.carousel-next:hover {
  background: rgba(255, 107, 53, 0.8);
}

.carousel-prev {
  left: 8px;
}

.carousel-next {
  right: 8px;
}

.carousel-indicators {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  z-index: 10;
}

.carousel-indicator {
  width: 8px;
  height: 8px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: background 0.2s ease;
}

.carousel-indicator.active {
  background: var(--color-orange);
}

.product-image-placeholder {
  width: 280px;
  height: 200px;
  background: var(--bg-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.product-basic-info {
  flex: 1;
}

.product-model-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 8px 0;
}

.product-category {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0 0 16px 0;
}

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

.product-tags .tag {
  padding: 4px 12px;
  background: rgba(255, 107, 53, 0.1);
  color: var(--color-orange);
  font-size: 12px;
  border-radius: 20px;
}

.product-specs-section {
  margin-bottom: 28px;
}

.product-specs-section h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 16px 0;
}

.specs-table {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 12px;
}

.spec-row {
  display: flex;
  padding: 12px 16px;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
}

.spec-row label {
  font-weight: 500;
  color: var(--text-secondary);
  min-width: 140px;
  flex-shrink: 0;
}

.spec-row span {
  color: var(--text-primary);
  font-weight: 500;
}

.product-action {
  display: flex;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

@media (max-width: 768px) {
  .product-detail-header {
    flex-direction: column;
  }
  
  .product-image-carousel {
    width: 100%;
    height: 500px;
  }
  
  .product-image-placeholder {
    width: 100%;
    height: 500px;
  }
  
  .specs-table {
    grid-template-columns: 1fr;
  }
  
  .product-action {
    flex-direction: column;
  }
}

/* ============================================
   PRODUCT CATEGORY SYSTEM (Products Page)
   ============================================ */
.category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.category-tab {
  padding: 10px 22px;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  position: relative;
}

.category-tab:hover {
  border-color: var(--color-orange);
  color: var(--text-primary);
  background: rgba(255, 107, 53, 0.08);
}

.category-tab.active {
  background: var(--gradient-orange);
  color: #fff;
  border-color: var(--color-orange);
  box-shadow: 0 2px 12px rgba(255, 107, 53, 0.3);
}

.category-tab.active::after {
  content: '';
  position: absolute;
  bottom: -9px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-top: 8px solid var(--color-orange);
}

.subcategory-pills {
  margin-bottom: 32px;
  min-height: 44px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.subcategory-pill {
  padding: 7px 18px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.subcategory-pill:hover {
  border-color: var(--color-blue);
  color: var(--color-blue);
  background: rgba(0, 119, 204, 0.08);
}

.subcategory-pill.active {
  background: var(--color-blue);
  color: #fff;
  border-color: var(--color-blue);
  box-shadow: 0 2px 8px rgba(0, 119, 204, 0.3);
}

/* Product card hidden state for filter */
.product-card.filter-hidden {
  display: none !important;
}

/* Product card visible animation */
.product-card.filter-visible {
  animation: cardReveal 0.35s ease forwards;
}

@keyframes cardReveal {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   FAQ ACCORDION
   ============================================ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

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

.faq-item:hover {
  border-color: rgba(255,107,53,0.3);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-fast);
  gap: 16px;
}

.faq-question:hover {
  color: var(--color-orange);
}

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-normal);
}

.faq-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-orange);
  transition: transform var(--transition-normal);
}

.faq-item.open .faq-icon svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.faq-item.open .faq-answer {
  max-height: 500px;
}

/* AI Chat Entry Banner */
.ai-entry-banner {
  background:
    linear-gradient(135deg, rgba(0,119,204,0.1), rgba(255,107,53,0.08)),
    var(--bg-card);
  border: 1px solid rgba(0,119,204,0.2);
  border-radius: var(--radius-xl);
  padding: 48px;
  text-align: center;
  margin-top: 50px;
  position: relative;
  overflow: hidden;
}

.ai-entry-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0,119,204,0.1) 0%, transparent 70%);
  animation: float-blob 8s ease-in-out infinite;
}

.ai-entry-banner::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(255,107,53,0.08) 0%, transparent 70%);
  animation: float-blob 10s ease-in-out infinite reverse;
}

@keyframes float-blob {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(20px, -20px); }
}

.ai-entry-banner > * {
  position: relative;
  z-index: 1;
}

.ai-entry-banner h3 {
  margin-bottom: 12px;
}

.ai-entry-banner p {
  max-width: 480px;
  margin: 0 auto 24px;
}

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  align-items: start;
}

.contact-info-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 40px;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
  align-items: flex-start;
}

.contact-info-item:last-child {
  margin-bottom: 0;
}

.contact-info-icon {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,107,53,0.1);
  border: 1px solid rgba(255,107,53,0.2);
  border-radius: var(--radius-md);
}

.contact-info-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-orange);
}

.contact-info-text h4 {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 4px;
}

.contact-info-text p,
.contact-info-text a {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.contact-info-text a:hover {
  color: var(--color-orange);
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--border-color);
}

.social-link {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--color-orange);
  border-color: var(--color-orange);
  transform: translateY(-3px);
}

.social-link:hover svg {
  stroke: #fff;
}

.social-link svg {
  width: 20px;
  height: 20px;
  stroke: var(--text-secondary);
  fill: none;
  transition: stroke var(--transition-fast);
}

/* Contact Form */
.contact-form-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 40px;
}

.contact-form-card h3 {
  font-family: var(--font-heading);
  font-size: 24px;
  margin-bottom: 8px;
}

.contact-form-card > p {
  margin-bottom: 28px;
  font-size: 14px;
}

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

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

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text-primary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  outline: none;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-orange);
  box-shadow: 0 0 0 3px rgba(255,107,53,0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238B949E' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 38px;
  cursor: pointer;
}

.form-textarea {
  resize: vertical;
  min-height: 130px;
}

/* ============================================
   DC REFRIGERATION PAGE
   ============================================ */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.spec-table th,
.spec-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  font-size: 14px;
}

.spec-table th {
  background: var(--bg-tertiary);
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
}

.spec-table tr:last-child td {
  border-bottom: none;
}

.spec-table tr:hover td {
  background: rgba(255,107,53,0.04);
}

.spec-table td:first-child {
  font-weight: 500;
  color: var(--text-primary);
  width: 35%;
}

/* Application Scenarios */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.scenario-card {
  padding: 32px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-normal);
}

.scenario-card:hover {
  border-color: var(--color-blue);
  transform: translateY(-4px);
  box-shadow: 0 0 30px rgba(0,119,204,0.1);
}

.scenario-card-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: rgba(0,119,204,0.1);
  border: 1px solid rgba(0,119,204,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scenario-card-icon svg {
  width: 30px;
  height: 30px;
  stroke: var(--color-blue-light);
}

.scenario-card h4 {
  font-family: var(--font-heading);
  margin-bottom: 10px;
}

.scenario-card p {
  font-size: 14px;
}

/* ============================================
   SOLUTION PAGE
   ============================================ */
.search-section {
  max-width: 600px;
  margin: 0 auto 50px;
}

.search-box {
  display: flex;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.search-box:focus-within {
  border-color: var(--color-orange);
  box-shadow: 0 0 0 4px rgba(255,107,53,0.1);
}

.search-box input {
  flex: 1;
  padding: 16px 20px;
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--text-primary);
  background: none;
  border: none;
  outline: none;
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.search-box button {
  padding: 16px 28px;
  background: var(--gradient-orange);
  border: none;
  color: #fff;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.search-box button:hover {
  background: var(--color-orange-dark);
}

/* Process Flow Steps */
.process-flow {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  position: relative;
  padding: 20px 0 60px;
}

.process-flow::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: var(--border-color);
}

.process-step {
  flex: 1;
  text-align: center;
  position: relative;
}

.process-step-num {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: var(--gradient-orange);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow-md);
}

.process-step h4 {
  font-family: var(--font-heading);
  font-size: 15px;
  margin-bottom: 6px;
}

.process-step p {
  font-size: 13px;
  line-height: 1.5;
}

/* ============================================
   CASES PAGE
   ============================================ */
.case-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.case-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-orange);
  box-shadow: var(--shadow-orange-glow);
}

.case-image {
  height: 240px;
  overflow: hidden;
  position: relative;
}

.case-image-bg {
  width: 100%;
  height: 100%;
  transition: transform var(--transition-slow);
  object-fit: cover;
  display: block;
}

.case-card:hover .case-image-bg {
  transform: scale(1.05);
}

.case-image-bg.c1 {
  background: linear-gradient(135deg, rgba(255,107,53,0.15), rgba(0,119,204,0.08)), repeating-linear-gradient(45deg, var(--bg-tertiary), var(--bg-tertiary) 12px, var(--bg-secondary) 12px, var(--bg-secondary) 24px);
}

.case-image-bg.c2 {
  background: radial-gradient(ellipse at 30% 40%, rgba(0,119,204,0.15) 0%, transparent 60%), var(--bg-tertiary);
}

.case-image-bg.c3 {
  background: conic-gradient(from 0deg at 50% 50%, rgba(255,107,53,0.07) 0deg, transparent 90deg, rgba(0,119,204,0.07) 180deg, transparent 270deg, rgba(255,107,53,0.07) 360deg), var(--bg-tertiary);
}

.case-image-bg.c4 {
  background: linear-gradient(180deg, rgba(255,107,53,0.1) 0%, transparent 40%, rgba(0,119,204,0.1) 100%), repeating-conic-gradient(var(--bg-tertiary) 0deg, var(--bg-secondary) 4deg, var(--bg-tertiary) 8deg);
}

.case-image-bg.c5 {
  background: linear-gradient(135deg, rgba(0,119,204,0.1) 25%, transparent 25%), linear-gradient(225deg, rgba(255,107,53,0.1) 25%, transparent 25%), var(--bg-tertiary);
  background-size: 36px 36px;
  background-position: 0 0, 18px 18px;
}

.case-image-bg.c6 {
  background: radial-gradient(ellipse at 20% 20%, rgba(255,107,53,0.1) 0%, transparent 50%), radial-gradient(ellipse at 80% 80%, rgba(0,119,204,0.1) 0%, transparent 50%), var(--bg-tertiary);
}

.case-category {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 6px 14px;
  background: rgba(255,107,53,0.9);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 50px;
}

.case-body {
  padding: 24px;
}

.case-body h4 {
  font-family: var(--font-heading);
  font-size: 20px;
  margin-bottom: 10px;
}

.case-body p {
  font-size: 14px;
  margin-bottom: 16px;
  line-height: 1.7;
}

.case-stats {
  display: flex;
  gap: 20px;
}

.case-stat {
  font-size: 13px;
}

.case-stat strong {
  color: var(--color-orange);
  font-weight: 600;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  position: relative;
  z-index: 1;
}

.footer-main {
  padding: 70px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand img {
  height: 40px;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 0;
}

.footer-col h5 {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-primary);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h5::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--color-orange);
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-links a:hover {
  color: var(--color-orange);
  transform: translateX(4px);
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--color-orange);
  border-color: var(--color-orange);
  transform: translateY(-2px);
}

.footer-social a svg {
  width: 18px;
  height: 18px;
  stroke: var(--text-secondary);
  fill: none;
  transition: stroke var(--transition-fast);
}

.footer-social a:hover svg {
  stroke: #fff;
}

.footer-bottom {
  padding: 20px 0;
  border-top: 1px solid var(--border-color);
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-delay-1 { transition-delay: 0.1s; }
.animate-delay-2 { transition-delay: 0.2s; }
.animate-delay-3 { transition-delay: 0.3s; }
.animate-delay-4 { transition-delay: 0.4s; }

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablet Landscape */
@media (max-width: 991px) {
  .nav-menu {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-overlay,
  .mobile-menu {
    display: block;
  }

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

  .stat-divider {
    display: none;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

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

  .data-highlights {
    grid-template-columns: repeat(2, 1fr);
  }

  .culture-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

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

  .process-flow {
    flex-wrap: wrap;
    justify-content: center;
  }

  .process-flow::before {
    display: none;
  }

  .process-step {
    flex: 0 0 45%;
    margin-bottom: 20px;
  }

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

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

/* Tablet Portrait */
@media (max-width: 767px) {
  :root {
    --section-padding: 60px 0;
    --section-padding-sm: 40px 0;
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: clamp(28px, 7vw, 42px);
  }

  .carousel-indicators {
    bottom: 24px;
  }

  .tabs-nav {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .tabs-nav::-webkit-scrollbar {
    display: none;
  }

  .tab-btn {
    font-size: 13px;
    padding: 8px 16px;
  }

  /* Category system responsive */
  .category-nav {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 6px;
    padding-bottom: 12px;
  }

  .category-nav::-webkit-scrollbar {
    display: none;
  }

  .category-tab {
    font-size: 11px;
    padding: 8px 14px;
    letter-spacing: 0.3px;
  }

  .category-tab.active::after {
    display: none;
  }

  .subcategory-pills {
    gap: 6px;
  }

  .subcategory-pill {
    font-size: 12px;
    padding: 6px 14px;
  }

  .ai-entry-banner {
    padding: 32px 20px;
  }

  .contact-info-card,
  .contact-form-card {
    padding: 28px;
  }
}

/* Mobile */
@media (max-width: 575px) {
  .container {
    padding: 0 16px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .stat-number {
    font-size: 32px;
  }

  .data-highlights {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .data-card {
    padding: 28px 16px;
  }

  .data-card-number {
    font-size: 28px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .page-header {
    padding: 50px 0 30px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 13px;
  }

  .btn-lg {
    padding: 14px 30px;
  }

  .scenario-grid {
    grid-template-columns: 1fr;
  }

  .process-step {
    flex: 0 0 100%;
  }

  .spec-table th,
  .spec-table td {
    padding: 12px 14px;
    font-size: 13px;
  }

  .social-links {
    flex-wrap: wrap;
  }
}

/* ============================================
   FLOATING CUSTOMER SERVICE BUTTON
   ============================================ */
.float-service {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 9999;
}

.float-service-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-orange), #ff8c5a);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(255, 107, 53, 0.4);
  transition: all var(--transition-normal);
  position: relative;
}

.float-service-btn:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 6px 30px rgba(255, 107, 53, 0.5);
}

.float-service-btn svg {
  width: 24px;
  height: 24px;
  stroke: #fff;
  fill: none;
}

.float-service-panel {
  position: absolute;
  right: 0;
  bottom: 70px;
  width: 200px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  padding: 16px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-normal);
}

.float-service-panel.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.float-service-panel::before {
  content: '';
  position: absolute;
  bottom: -8px;
  right: 20px;
  width: 16px;
  height: 16px;
  background: var(--bg-card);
  transform: rotate(45deg);
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.float-service-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
  color: var(--text-primary);
  text-decoration: none;
}

.float-service-item:hover {
  background: rgba(255, 107, 53, 0.08);
}

.float-service-item svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-orange);
  flex-shrink: 0;
}

.float-service-item span {
  font-size: 14px;
  font-weight: 500;
}

/* ============================================
   ONLINE SERVICE MODAL
   ============================================ */
.service-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-modal-overlay.show {
  opacity: 1;
  visibility: visible;
}

.service-modal {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  width: 90%;
  max-width: 420px;
  padding: 0;
  overflow: hidden;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.service-modal-overlay.show .service-modal {
  transform: scale(1);
}

.service-modal-header {
  background: linear-gradient(135deg, var(--color-orange), #ff8c5a);
  padding: 24px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.service-modal-header h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0;
}

.service-modal-close {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: #fff;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.service-modal-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

.service-modal-close svg {
  width: 16px;
  height: 16px;
  stroke: #fff;
}

.service-modal-body {
  padding: 24px;
}

.service-contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  margin-bottom: 12px;
  transition: transform var(--transition-fast);
}

.service-contact-item:last-child {
  margin-bottom: 0;
}

.service-contact-item:hover {
  transform: translateX(4px);
}

.service-contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(0, 119, 204, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.service-contact-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-orange);
}

.service-contact-info {
  flex: 1;
}

.service-contact-info h4 {
  margin: 0 0 4px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.service-contact-info p {
  margin: 0;
  font-size: 14px;
  color: var(--text-secondary);
  word-break: break-all;
}

.service-contact-info .contact-link {
  color: var(--color-orange);
  text-decoration: none;
}

.service-contact-info .contact-link:hover {
  text-decoration: underline;
}

.service-modal-tips {
  margin-top: 20px;
  padding: 12px 16px;
  background: rgba(0, 119, 204, 0.08);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* FAQ Page Contact Section */
.faq-contact-section {
  max-width: 800px;
  margin: 40px auto 0;
  padding: 32px;
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
}

.faq-contact-section h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 24px 0;
  color: var(--text-primary);
}

.faq-contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.faq-contact-card {
  padding: 20px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.faq-contact-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.faq-contact-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(0, 119, 204, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.faq-contact-card-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-orange);
}

.faq-contact-card h4 {
  margin: 0 0 8px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.faq-contact-card p {
  margin: 0 0 16px 0;
  font-size: 14px;
  color: var(--text-secondary);
}

.faq-contact-btn {
  padding: 10px 24px;
  background: var(--color-orange);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.faq-contact-btn:hover {
  background: #e55a2b;
  transform: translateY(-2px);
}

/* Responsive for floating service */
@media (max-width: 575px) {
  .float-service {
    right: 16px;
    bottom: 16px;
  }

  .float-service-btn {
    width: 50px;
    height: 50px;
  }

  .float-service-panel {
    width: 180px;
  }

  .faq-contact-section {
    padding: 20px;
  }

  .faq-contact-grid {
    grid-template-columns: 1fr;
  }
}