/* ==========================================================================
   PEARLY ENTERPRISE - BLUE IDENTITY CORPORATE STYLESHEET
   Includes Normal (Light) Mode & Deep Dark Blue Mode
   ========================================================================== */

:root {
  /* Core Blue Brand Colors */
  --brand-blue: #144272;
  --brand-blue-deep: #0a2647;
  --brand-blue-vibrant: #205295;
  --brand-blue-light: #2c74b3;
  --brand-blue-electric: #2563eb;
  
  --accent-gold: #f59e0b;
  --accent-gold-dark: #d97706;
  --accent-gold-light: #fef3c7;
  
  --whatsapp: #25d366;
  --whatsapp-hover: #1eb954;
  --wechat: #07c160;

  /* Normal / Light Mode Variables (Default) */
  --bg-page: #f8fafc;
  --bg-section-alt: #eef2f6;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --bg-navbar: rgba(255, 255, 255, 0.95);
  --bg-topbar: #0a2647;
  --bg-footer: #07172b;

  --text-heading: #0a2647;
  --text-body: #334155;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --text-white: #ffffff;

  --border-ui: #e2e8f0;
  --border-focus: #2563eb;
  
  --table-head-bg: #0a2647;
  --table-head-color: #ffffff;
  --table-row-even: #f8fafc;
  --table-row-hover: #e0edff;
  --table-row-popular: #fffbeb;

  --pill-bg: #e2e8f0;
  --pill-color: #0a2647;

  --shadow-sm: 0 1px 3px rgba(10, 38, 71, 0.08);
  --shadow-md: 0 4px 10px rgba(10, 38, 71, 0.1);
  --shadow-lg: 0 10px 25px rgba(10, 38, 71, 0.12);
  --shadow-xl: 0 20px 35px rgba(10, 38, 71, 0.16);

  --carousel-3d-active-shadow: 0 25px 50px -10px rgba(10, 38, 71, 0.38), 0 0 0 1px rgba(10, 38, 71, 0.08);
  --carousel-3d-prev-shadow: -18px 18px 45px rgba(10, 38, 71, 0.45);
  --carousel-3d-next-shadow: 18px 18px 45px rgba(10, 38, 71, 0.45);

  --logo-watermark-opacity: 0.09;
  --logo-watermark-filter: brightness(0.2) contrast(140%);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --radius-2xl: 28px;
  --radius-full: 9999px;

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

/* ==========================================================================
   DARK BLUE MODE ([data-theme="dark-blue"])
   Rich, Deep Industrial Midnight Blue Theme with High-Contrast Typography
   ========================================================================== */
[data-theme="dark-blue"] {
  --bg-page: #061426;
  --bg-section-alt: #0a1f38;
  --bg-card: #0d2644;
  --bg-card-hover: #123258;
  --bg-navbar: rgba(7, 21, 38, 0.95);
  --bg-topbar: #040e1b;
  --bg-footer: #030a14;

  --text-heading: #ffffff;
  --text-body: #cbd5e1;
  --text-muted: #94a3b8;
  --text-light: #64748b;
  --text-white: #ffffff;

  --border-ui: #193c66;
  --border-focus: #3b82f6;

  --table-head-bg: #041224;
  --table-head-color: #ffffff;
  --table-row-even: #0a213c;
  --table-row-hover: #143760;
  --table-row-popular: #173620;

  --pill-bg: #14355a;
  --pill-color: #93c5fd;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 20px 35px rgba(0, 0, 0, 0.7);

  --carousel-3d-active-shadow: 0 28px 60px -10px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(255, 255, 255, 0.12);
  --carousel-3d-prev-shadow: -22px 22px 50px rgba(0, 0, 0, 0.9);
  --carousel-3d-next-shadow: 22px 22px 50px rgba(0, 0, 0, 0.9);

  --logo-watermark-opacity: 0.11;
  --logo-watermark-filter: brightness(1.2) drop-shadow(0 0 35px rgba(59, 130, 246, 0.45));
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  font-size: 16px;
  overflow-x: clip;
  max-width: 100vw;
}

body {
  font-family: var(--font-family);
  color: var(--text-body);
  background-color: var(--bg-page);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
  max-width: 100vw;
  position: relative;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

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

button, input, select, textarea {
  font-family: inherit;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   Top Announcement & Contact Bar
   ========================================================================== */
.top-bar {
  background: var(--bg-topbar);
  color: #94a3b8;
  font-size: 0.83rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.top-bar-left, .top-bar-right {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.top-info-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.top-info-item i {
  color: var(--accent-gold);
}

.top-info-item a:hover {
  color: #ffffff;
}

.wechat-badge-top {
  background: rgba(7, 193, 96, 0.16);
  color: #34d399;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* ==========================================================================
   Header Navbar & Clean Logo
   ========================================================================== */
.header-navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-navbar);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-ui);
  transition: all var(--transition-normal);
}

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

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  gap: 15px;
}

.brand-logo-wrap {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
  text-decoration: none;
}

/* Big, Prominent Round Brand Logo (Side-by-side with brand text) */
.brand-logo-img {
  width: 82px;
  height: 82px;
  border-radius: 50%;
  object-fit: contain;
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: 0 4px 14px rgba(10, 38, 71, 0.22);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  display: block;
  flex-shrink: 0;
}

.brand-logo-wrap:hover .brand-logo-img {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(10, 38, 71, 0.35);
}

[data-theme="dark-blue"] .brand-logo-img {
  background: transparent;
  border: none;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.7);
}

[data-theme="dark-blue"] .brand-logo-wrap:hover .brand-logo-img {
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.9);
}

.brand-text-block {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: -0.4px;
  color: var(--text-heading);
  line-height: 1.12;
}

.brand-sub {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-gold-dark);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

[data-theme="dark-blue"] .brand-sub {
  color: var(--accent-gold);
}

.brand-bengali {
  font-size: 0.84rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* Navigation Menu - Compact & Non-Wrapping */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 18px;
  list-style: none;
}

.nav-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-body);
  white-space: nowrap;
  padding: 6px 2px;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--brand-blue-light);
}

[data-theme="dark-blue"] .nav-link {
  color: #cbd5e1;
}

[data-theme="dark-blue"] .nav-link:hover {
  color: #60a5fa;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gold);
  transition: width var(--transition-normal);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--brand-blue-electric);
}

.nav-link.active::after {
  width: 100%;
  background: var(--accent-gold);
}

[data-theme="dark-blue"] .nav-link.active {
  color: #60a5fa;
}

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

/* Theme Switcher Button */
.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-ui);
  color: var(--text-heading);
  padding: 7px 12px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.theme-toggle-btn:hover {
  border-color: var(--accent-gold);
  transform: translateY(-1px);
}

.theme-toggle-btn i {
  color: var(--accent-gold);
  font-size: 0.95rem;
}

.btn-nav-wa {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--whatsapp);
  color: #ffffff;
  padding: 7px 15px;
  border-radius: var(--radius-full);
  font-size: 0.86rem;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(37, 211, 102, 0.3);
  transition: transform var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}

.btn-nav-wa:hover {
  background: var(--whatsapp-hover);
  transform: translateY(-1px);
}

.menu-toggle-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--text-heading);
  cursor: pointer;
  padding: 6px;
}

/* ==========================================================================
   Hero Section - Clean & Focused on China & India
   ========================================================================== */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, #051930 0%, #0c2b4e 50%, #103b6b 100%);
  color: #ffffff;
  padding: 75px 0 85px;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 75% 25%, rgba(44, 116, 179, 0.25) 0%, transparent 60%),
              radial-gradient(circle at 20% 80%, rgba(245, 158, 11, 0.15) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* Ambient Transparent Full-Text Logo Watermark in Hero Background */
.hero-section::after {
  content: '';
  position: absolute;
  right: 2%;
  top: 50%;
  transform: translateY(-50%);
  width: 660px;
  max-width: 92vw;
  height: 440px;
  background: url('../images/logo/logo-full-text-transparent.png') no-repeat center center;
  background-size: contain;
  opacity: 0.13;
  filter: drop-shadow(0 0 45px rgba(59, 130, 246, 0.5));
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 45px;
  position: relative;
  z-index: 1;
}

.hero-badge-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: var(--accent-gold);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.8px;
  margin-bottom: 14px;
}

.hero-title .highlight-gold {
  color: var(--accent-gold);
  background: linear-gradient(135deg, #fef08a 0%, #f59e0b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-bengali-accent {
  font-size: 1.15rem;
  color: #cbd5e1;
  font-weight: 600;
  margin-bottom: 18px;
}

.hero-description {
  font-size: 1.08rem;
  color: #cbd5e1;
  line-height: 1.65;
  margin-bottom: 28px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.btn-primary-hero {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: #ffffff;
  padding: 13px 24px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  box-shadow: 0 4px 15px rgba(217, 119, 6, 0.4);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary-hero:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(217, 119, 6, 0.5);
}

.btn-secondary-hero {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 13px 22px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  backdrop-filter: blur(5px);
  transition: all var(--transition-fast);
}

.btn-secondary-hero:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: #ffffff;
}

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding-top: 22px;
}

.stat-num {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--accent-gold);
  line-height: 1.1;
}

.stat-lbl {
  font-size: 0.78rem;
  color: #94a3b8;
  font-weight: 500;
  margin-top: 3px;
}

/* Hero Visual Card */
.hero-visual-col {
  position: relative;
}

.hero-main-card {
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-xl);
  padding: 14px;
  backdrop-filter: blur(12px);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
}

.hero-preview-img {
  width: 100%;
  height: 370px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  cursor: pointer;
}

.hero-floating-pill {
  position: absolute;
  background: var(--bg-card);
  color: var(--text-heading);
  border-radius: var(--radius-lg);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-ui);
}

.hero-floating-pill.pill-bottom {
  bottom: -15px;
  right: -10px;
}

.pill-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #ecfdf5;
  color: var(--whatsapp);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.pill-title {
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.2;
}

.pill-desc {
  font-size: 0.7rem;
  color: var(--text-muted);
}

[data-theme="dark-blue"] .pill-icon {
  background: rgba(37, 211, 102, 0.15);
}

/* ==========================================================================
   Section Layouts with Ambient Logo Watermark
   Displays the transparent circular logo visibly in the background of every page/section
   ========================================================================== */
.section {
  position: relative;
  padding: 75px 0;
  overflow: hidden;
  transition: background-color var(--transition-normal);
}

.section::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 680px;
  max-width: 90vw;
  height: 450px;
  background: url('../images/logo/logo-full-text-transparent.png') no-repeat center center;
  background-size: contain;
  opacity: var(--logo-watermark-opacity);
  filter: var(--logo-watermark-filter);
  pointer-events: none;
  z-index: 0;
  transition: opacity var(--transition-normal), filter var(--transition-normal);
}

.section-alt {
  background-color: var(--bg-section-alt);
}

.section-header {
  text-align: center;
  max-width: 740px;
  margin: 0 auto 45px;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-gold-dark);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

[data-theme="dark-blue"] .section-tag {
  color: var(--accent-gold);
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-heading);
  line-height: 1.25;
  letter-spacing: -0.4px;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.02rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   About Us
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 45px;
}

.about-card-display {
  background: var(--bg-card);
  padding: 22px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-ui);
}

.visiting-card-container {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.visiting-card-box {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-ui);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.visiting-card-box:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.visiting-card-img {
  width: 100%;
  cursor: pointer;
}

.card-label-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(10, 38, 71, 0.88);
  color: #ffffff;
  padding: 3px 9px;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  font-weight: 600;
  backdrop-filter: blur(4px);
}

.quote-highlight-box {
  background: linear-gradient(135deg, rgba(32, 82, 149, 0.08) 0%, rgba(245, 158, 11, 0.12) 100%);
  border-left: 4px solid var(--accent-gold);
  padding: 18px 22px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 22px 0;
}

[data-theme="dark-blue"] .quote-highlight-box {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.15) 0%, rgba(245, 158, 11, 0.15) 100%);
}

.quote-highlight-box p {
  font-size: 1.1rem;
  font-style: italic;
  font-weight: 600;
  color: var(--text-heading);
  line-height: 1.5;
}

.quote-author {
  display: block;
  font-size: 0.83rem;
  color: var(--text-muted);
  font-style: normal;
  margin-top: 5px;
  font-weight: 700;
}

.features-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 22px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.feature-icon-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(32, 82, 149, 0.12);
  color: var(--brand-blue-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  flex-shrink: 0;
}

[data-theme="dark-blue"] .feature-icon-circle {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
}

.feature-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-heading);
}

.feature-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ==========================================================================
   Product Cards
   ========================================================================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

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

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

.product-card-featured {
  border: 2px solid var(--accent-gold);
  position: relative;
}

.featured-ribbon {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--accent-gold-dark);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  z-index: 2;
  text-transform: uppercase;
}

.product-img-wrap {
  position: relative;
  height: 230px;
  overflow: hidden;
  background: #0f1f35;
}

.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  cursor: pointer;
}

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

.origin-badge {
  position: absolute;
  bottom: 10px;
  left: 10px;
  background: rgba(6, 20, 38, 0.92);
  color: #ffffff;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  backdrop-filter: blur(4px);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.product-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-heading);
  margin-bottom: 6px;
  line-height: 1.3;
}

.product-text {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  line-height: 1.5;
}

.product-specs-list {
  list-style: none;
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  flex-grow: 1;
}

.product-specs-list li {
  font-size: 0.83rem;
  color: var(--text-body);
  display: flex;
  align-items: flex-start;
  gap: 7px;
}

.product-specs-list li i {
  color: var(--accent-gold);
  margin-top: 2px;
}

.product-footer {
  border-top: 1px solid var(--border-ui);
  padding-top: 14px;
}

.btn-product-quote {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  background: var(--bg-section-alt);
  border: 1px solid var(--border-ui);
  color: var(--text-heading);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 700;
  transition: all var(--transition-fast);
}

.btn-product-quote:hover {
  background: var(--whatsapp);
  border-color: var(--whatsapp);
  color: #ffffff;
}

/* ==========================================================================
   3D DEPTH CAROUSEL (Center Active with Left/Right Background Peek Shadows)
   - Centered pictures and centered thumbnails
   - Zero scrollbar (overflow: visible)
   - Zero outer card border / background container
   - Pronounced background drop shadows on previous & next peek cards
   ========================================================================== */
.carousel-3d-wrapper {
  max-width: 1040px;
  margin: 0 auto;
  position: relative;
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0;
}

.carousel-3d-stage {
  position: relative;
  width: 100%;
  height: 460px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: var(--radius-2xl);
  padding: 10px 0;
}

/* 3D Cards Base */
.carousel-3d-card {
  position: absolute;
  top: 50%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  user-select: none;
  transition: transform 0.45s cubic-bezier(0.25, 1, 0.5, 1), 
              opacity 0.45s ease, 
              filter 0.45s ease, 
              box-shadow 0.45s ease;
}

.carousel-3d-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Center Active Card (In Full Focus, Elevated, Drop Shadow) */
.carousel-3d-card.card-active {
  left: 50%;
  transform: translate(-50%, -50%) scale(1);
  width: 68%;
  height: 94%;
  max-width: 660px;
  z-index: 10;
  opacity: 1;
  box-shadow: var(--carousel-3d-active-shadow);
  cursor: pointer;
}

/* Left Background Card (Peek with Dark Background Shadow) */
.carousel-3d-card.card-prev {
  left: 16%;
  transform: translate(-50%, -50%) scale(0.82);
  width: 58%;
  height: 84%;
  max-width: 540px;
  z-index: 2;
  opacity: 0.52;
  filter: brightness(0.65);
  box-shadow: var(--carousel-3d-prev-shadow);
  cursor: pointer;
}

.carousel-3d-card.card-prev:hover {
  opacity: 0.82;
  filter: brightness(0.85);
  transform: translate(-50%, -50%) scale(0.85);
}

/* Right Background Card (Peek with Dark Background Shadow) */
.carousel-3d-card.card-next {
  right: 16%;
  transform: translate(50%, -50%) scale(0.82);
  width: 58%;
  height: 84%;
  max-width: 540px;
  z-index: 2;
  opacity: 0.52;
  filter: brightness(0.65);
  box-shadow: var(--carousel-3d-next-shadow);
  cursor: pointer;
}

.carousel-3d-card.card-next:hover {
  opacity: 0.82;
  filter: brightness(0.85);
  transform: translate(50%, -50%) scale(0.85);
}

/* Subtle overlay on background peek cards */
.card-peek-overlay {
  position: absolute;
  inset: 0;
  background: rgba(4, 14, 26, 0.3);
  pointer-events: none;
  transition: background 0.3s ease;
}

.carousel-3d-card:hover .card-peek-overlay {
  background: rgba(4, 14, 26, 0.1);
}

/* Slide Counter Badge */
.carousel-badge-counter {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(6, 20, 38, 0.88);
  color: #ffffff;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  z-index: 12;
}

/* Navigation Chevrons */
.carousel-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(6, 20, 38, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  cursor: pointer;
  z-index: 20;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
  transition: all var(--transition-fast);
}

.carousel-nav-btn:hover {
  background: var(--brand-blue-light);
  border-color: #ffffff;
  transform: translateY(-50%) scale(1.1);
}

.carousel-nav-btn.prev {
  left: 10px;
}

.carousel-nav-btn.next {
  right: 10px;
}

/* Centered Captions */
.carousel-caption-bar {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-top: 18px;
  gap: 6px;
}

.carousel-title-group h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-heading);
  margin: 0;
}

.carousel-title-group p {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin: 4px 0 0;
}

.carousel-hint {
  font-size: 0.78rem;
  color: var(--text-light);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 2px;
}

/* Centered Thumbnails Strip (No Scrollbar, Centered in the Middle) */
.carousel-3d-thumbs {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
  padding: 4px 0;
  overflow: visible; /* Zero scrollbar */
  border: none;
}

.thumb-pill-btn {
  position: relative;
  width: 76px;
  height: 52px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid var(--border-ui);
  background: var(--bg-card);
  cursor: pointer;
  padding: 0;
  display: block;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.thumb-pill-btn:hover {
  transform: translateY(-3px);
  border-color: var(--brand-blue-light);
}

.thumb-pill-btn.active {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.45), 0 4px 14px rgba(0, 0, 0, 0.25);
  transform: translateY(-3px) scale(1.06);
}

.thumb-pill-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ==========================================================================
   Wire Gauge Table
   ========================================================================== */
.gauge-wrapper {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-ui);
}

.gauge-controls-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-ui);
}

.gauge-search-box {
  position: relative;
  min-width: 270px;
  flex: 1;
  max-width: 380px;
}

.gauge-search-box i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
}

.gauge-input {
  width: 100%;
  padding: 10px 14px 10px 40px;
  border: 1px solid var(--border-ui);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  color: var(--text-heading);
  background: var(--bg-section-alt);
  transition: all var(--transition-fast);
}

.gauge-input:focus {
  outline: none;
  border-color: var(--border-focus);
  background: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.gauge-tabs {
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
}

.gauge-tab-btn {
  background: var(--bg-section-alt);
  border: 1px solid var(--border-ui);
  color: var(--text-body);
  padding: 7px 14px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.gauge-tab-btn:hover {
  border-color: var(--accent-gold);
}

.gauge-tab-btn.active {
  background: var(--brand-blue-deep);
  color: #ffffff;
  border-color: var(--brand-blue-deep);
}

[data-theme="dark-blue"] .gauge-tab-btn.active {
  background: var(--brand-blue-vibrant);
  border-color: var(--brand-blue-vibrant);
}

.gauge-count-badge {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-section-alt);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.gauge-table-scroll {
  max-height: 520px;
  overflow-y: auto;
  border: 1px solid var(--border-ui);
  border-radius: var(--radius-md);
}

.gauge-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.gauge-table thead {
  position: sticky;
  top: 0;
  background: var(--table-head-bg);
  color: var(--table-head-color);
  z-index: 5;
}

.gauge-table th {
  padding: 13px 18px;
  font-weight: 700;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.gauge-table td {
  padding: 11px 18px;
  border-bottom: 1px solid var(--border-ui);
  color: var(--text-body);
}

.gauge-row:nth-child(even) {
  background: var(--table-row-even);
}

.gauge-row:hover {
  background: var(--table-row-hover);
}

.gauge-row.row-popular {
  background: var(--table-row-popular);
}

.swg-pill {
  display: inline-block;
  font-weight: 800;
  color: var(--pill-color);
  background: var(--pill-bg);
  padding: 3px 9px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
}

.badge-popular-star {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: 6px;
  background: rgba(245, 158, 11, 0.2);
  color: var(--accent-gold-dark);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-full);
}

[data-theme="dark-blue"] .badge-popular-star {
  color: var(--accent-gold);
}

.val {
  font-weight: 700;
  color: var(--text-heading);
}

.unit {
  color: var(--text-light);
  font-size: 0.78rem;
}

.btn-quote-row {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--whatsapp);
  color: #ffffff;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  transition: background var(--transition-fast);
}

.btn-quote-row:hover {
  background: var(--whatsapp-hover);
}

.empty-search-state {
  text-align: center;
  padding: 36px 20px !important;
}

/* ==========================================================================
   Compliance & Legal
   ========================================================================== */
.compliance-box {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 36px;
  border: 1px solid var(--border-ui);
  box-shadow: var(--shadow-md);
}

.compliance-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 25px;
}

.compliance-item {
  background: var(--bg-section-alt);
  border: 1px solid var(--border-ui);
  border-radius: var(--radius-lg);
  padding: 22px;
  text-align: center;
  transition: transform var(--transition-fast);
}

.compliance-item:hover {
  transform: translateY(-3px);
}

.compliance-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(32, 82, 149, 0.15);
  color: var(--brand-blue-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin: 0 auto 14px;
}

[data-theme="dark-blue"] .compliance-icon {
  color: #60a5fa;
  background: rgba(59, 130, 246, 0.2);
}

.compliance-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-heading);
  margin-bottom: 5px;
}

.compliance-status {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #ecfdf5;
  color: #15803d;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 9px;
  border-radius: var(--radius-full);
  margin-bottom: 8px;
}

.compliance-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

[data-theme="dark-blue"] .compliance-status {
  background: rgba(21, 128, 61, 0.2);
  color: #4ade80;
}

/* ==========================================================================
   Location & Dual Maps
   ========================================================================== */
.location-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 36px;
  align-items: center;
}

.location-details-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 32px;
  border: 1px solid var(--border-ui);
  box-shadow: var(--shadow-md);
}

.location-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-heading);
  margin-bottom: 8px;
}

.location-address {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 22px;
}

.map-buttons-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btn-map-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 18px;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-weight: 700;
  transition: all var(--transition-fast);
}

.plus-code-box {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-section-alt);
  border: 1px solid var(--border-ui);
  padding: 6px 12px;
  border-radius: var(--radius-md);
  font-size: 0.84rem;
  color: var(--text-heading);
  margin-bottom: 20px;
}

.plus-code-box i {
  color: #ea4335;
  font-size: 0.95rem;
}

.plus-code-val {
  font-weight: 700;
  letter-spacing: 0.4px;
}

.btn-google-maps {
  background: #1a73e8;
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(26, 115, 232, 0.35);
}

.btn-google-maps:hover {
  background: #1557b0;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(26, 115, 232, 0.45);
}

.map-embed-box {
  height: 400px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-ui);
  box-shadow: var(--shadow-lg);
  background: #040e1b;
}

.map-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ==========================================================================
   Contact & Quote Form
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 45px;
}

.contact-info-col {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.contact-person-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 26px;
  border: 1px solid var(--border-ui);
  box-shadow: var(--shadow-md);
}

.contact-person-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-ui);
}

.avatar-initial {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-blue-deep) 0%, var(--brand-blue-light) 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
}

.contact-name {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-heading);
  line-height: 1.2;
}

.contact-role {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-gold-dark);
  text-transform: uppercase;
}

[data-theme="dark-blue"] .contact-role {
  color: var(--accent-gold);
}

.contact-items-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-row-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.contact-row-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-section-alt);
  color: var(--brand-blue-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.95rem;
}

.contact-row-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-light);
  text-transform: uppercase;
}

.contact-row-val {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-heading);
}

.wechat-box-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 22px;
  border: 1px solid var(--border-ui);
  box-shadow: var(--shadow-sm);
}

.wechat-box-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-heading);
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 12px;
}

.wechat-id-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.wechat-id-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-section-alt);
  border: 1px solid var(--border-ui);
  padding: 9px 12px;
  border-radius: var(--radius-md);
}

.wechat-id-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-heading);
}

.copy-wechat-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--bg-card);
  border: 1px solid var(--border-ui);
  color: var(--text-heading);
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.copy-wechat-btn:hover {
  background: var(--wechat);
  border-color: var(--wechat);
  color: #ffffff;
}

/* Quote Form Card */
.quote-form-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 32px;
  border: 1px solid var(--border-ui);
  box-shadow: var(--shadow-md);
}

.form-header {
  margin-bottom: 22px;
}

.form-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-heading);
}

.form-sub {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-group-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}

.form-field {
  display: flex;
  flex-direction: column;
  margin-bottom: 14px;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 5px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--border-ui);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--text-heading);
  background: var(--bg-section-alt);
  transition: border-color var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  background: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 85px;
}

.btn-submit-quote {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  background: var(--whatsapp);
  color: #ffffff;
  border: none;
  padding: 13px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.35);
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.btn-submit-quote:hover {
  background: var(--whatsapp-hover);
  transform: translateY(-2px);
}

/* ==========================================================================
   Floating WhatsApp Button
   ========================================================================== */
.floating-whatsapp {
  position: fixed;
  bottom: 26px;
  right: 26px;
  z-index: 999;
  background: var(--whatsapp);
  color: #ffffff;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.9rem;
  box-shadow: 0 8px 22px rgba(37, 211, 102, 0.45);
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.floating-whatsapp:hover {
  transform: scale(1.08);
  background: var(--whatsapp-hover);
}

/* ==========================================================================
   Lightbox & Toast
   ========================================================================== */
.pearly-toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #0f172a;
  color: #ffffff;
  padding: 11px 22px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: var(--shadow-xl);
  z-index: 2000;
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
  pointer-events: none;
}

.pearly-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.lightbox-modal {
  position: fixed;
  inset: 0;
  background: rgba(4, 14, 27, 0.94);
  backdrop-filter: blur(8px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 25px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.lightbox-modal.visible {
  opacity: 1;
  visibility: visible;
}

.lightbox-inner {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 80vh;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 40px rgba(0,0,0,0.6);
  object-fit: contain;
}

.lightbox-caption {
  color: #ffffff;
  margin-top: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: -42px;
  right: 0;
  background: none;
  border: none;
  color: #ffffff;
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  position: relative;
  overflow: hidden;
  background: var(--bg-footer);
  color: #94a3b8;
  padding: 60px 0 25px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.site-footer::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 640px;
  max-width: 90vw;
  height: 430px;
  background: url('../images/logo/logo-full-text-transparent.png') no-repeat center center;
  background-size: contain;
  opacity: 0.08;
  filter: brightness(1.2);
  pointer-events: none;
  z-index: 0;
}

.footer-logo-img {
  width: 82px !important;
  height: 82px !important;
  border-radius: 50% !important;
  object-fit: contain !important;
  background: transparent !important;
  border: none !important;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5) !important;
  padding: 0 !important;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 45px;
}

.footer-col-title {
  font-size: 1rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-text {
  font-size: 0.88rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer-links a {
  font-size: 0.88rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-links li {
  font-size: 0.86rem;
  line-height: 1.5;
}

.footer-bottom-links {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #64748b;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
}

/* ==========================================================================
   Comprehensive Responsive Breakpoints (Desktop, Tablet, Mobile & Small Phone)
   ========================================================================== */

/* Tablet Landscape / Small Laptop (<= 1024px) */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .hero-title {
    font-size: 2.3rem;
  }

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

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

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

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

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

/* Tablet Portrait & Large Handhelds (<= 820px) */
@media (max-width: 820px) {
  .top-bar {
    display: none;
  }

  .container {
    padding: 0 16px;
  }

  .header-navbar {
    border-bottom: 1px solid var(--border-ui);
  }

  .navbar-inner {
    padding: 8px 0;
    gap: 12px;
  }

  .brand-logo-wrap {
    gap: 10px;
    min-width: 0;
    flex-shrink: 1;
  }

  .brand-logo-img {
    width: 58px;
    height: 58px;
    flex-shrink: 0;
  }

  .brand-text-block {
    min-width: 0;
  }

  .brand-name {
    font-size: 1.12rem;
    line-height: 1.15;
    white-space: nowrap;
  }

  .brand-sub {
    font-size: 0.72rem;
    letter-spacing: 0.4px;
  }

  .brand-bengali {
    font-size: 0.76rem;
  }

  .menu-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
  }

  .nav-menu {
    position: fixed;
    top: 64px;
    left: 0;
    width: 100%;
    background: var(--bg-card);
    flex-direction: column;
    padding: 20px 24px;
    box-shadow: var(--shadow-xl);
    border-bottom: 1px solid var(--border-ui);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
    gap: 14px;
    align-items: flex-start;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .hero-section {
    padding: 55px 0 65px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-bengali-accent {
    font-size: 1.05rem;
  }

  .hero-description {
    font-size: 0.98rem;
  }

  /* Responsive Full-Text Watermarks (Contained & Centered) */
  .section::before {
    width: 400px;
    height: 270px;
    max-width: 85vw;
  }

  .hero-section::after {
    display: none; /* Prevents hero horizontal bleed on mobile */
  }

  .site-footer::after {
    width: 340px;
    height: 230px;
    max-width: 85vw;
  }

  .hero-stats-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  /* 3D Carousel Responsive */
  .carousel-3d-stage {
    height: 300px;
  }

  .carousel-3d-card.card-active {
    width: 82%;
    height: 94%;
  }

  .carousel-3d-card.card-prev {
    left: 8%;
    width: 70%;
    height: 84%;
    opacity: 0.42;
  }

  .carousel-3d-card.card-next {
    right: 8%;
    width: 70%;
    height: 84%;
    opacity: 0.42;
  }

  .carousel-nav-btn {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .carousel-nav-btn.prev {
    left: 6px;
  }

  .carousel-nav-btn.next {
    right: 6px;
  }

  .thumb-pill-btn {
    width: 62px;
    height: 42px;
  }

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

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

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

  /* Wire Gauge Swipeable Filter Bar & Table */
  .gauge-controls-row {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .gauge-search-box {
    max-width: 100%;
  }

  .gauge-tabs {
    display: flex;
    align-items: center;
    gap: 8px;
    overflow-x: auto;
    white-space: nowrap;
    flex-wrap: nowrap;
    width: 100%;
    padding: 2px 2px 8px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

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

  .gauge-tab-btn {
    flex-shrink: 0;
    white-space: nowrap;
    padding: 7px 14px;
    font-size: 0.82rem;
  }

  .gauge-count-badge {
    width: 100%;
    text-align: center;
    display: block;
  }

  .gauge-table-scroll {
    overflow-x: auto;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

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

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

/* Medium & Small Phones (<= 640px) */
@media (max-width: 640px) {
  /* Navbar: Clean Header Space */
  .btn-nav-wa {
    display: none; /* Redundant in header; floating WhatsApp is present */
  }

  .theme-toggle-btn {
    width: 38px;
    height: 38px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
  }

  #themeToggleLabel {
    display: none; /* Icon-only button on mobile prevents text squishing */
  }

  /* Hero Section Mobile Alignment */
  .hero-floating-pill.pill-bottom {
    position: relative;
    right: auto;
    bottom: auto;
    margin-top: 14px;
    width: 100%;
    justify-content: center;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }

  .btn-primary-hero, .btn-secondary-hero {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .hero-preview-img {
    height: 250px;
  }

  /* Form Inputs 16px to prevent iOS Safari auto-zoom */
  .form-input, .form-select, .form-textarea {
    font-size: 16px !important;
  }

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

/* Standard Smartphones (<= 480px) */
@media (max-width: 480px) {
  .container {
    padding: 0 14px;
  }

  .brand-logo-img {
    width: 48px;
    height: 48px;
  }

  .brand-name {
    font-size: 0.98rem;
    line-height: 1.15;
  }

  .brand-sub {
    font-size: 0.66rem;
    letter-spacing: 0.2px;
  }

  .brand-bengali {
    font-size: 0.72rem;
  }

  .section {
    padding: 45px 0;
  }

  .section-title {
    font-size: 1.5rem;
    line-height: 1.25;
  }

  .section-subtitle {
    font-size: 0.9rem;
  }

  .section::before {
    width: 280px;
    height: 190px;
    opacity: 0.06;
  }

  .hero-section {
    padding: 42px 0 50px;
  }

  .hero-title {
    font-size: 1.7rem;
    line-height: 1.2;
    letter-spacing: -0.4px;
  }

  .hero-bengali-accent {
    font-size: 0.92rem;
    line-height: 1.4;
    margin-bottom: 12px;
  }

  .hero-description {
    font-size: 0.9rem;
    line-height: 1.55;
    margin-bottom: 22px;
  }

  .hero-stats-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    padding-top: 16px;
  }

  .stat-num {
    font-size: 1.35rem;
  }

  .stat-lbl {
    font-size: 0.72rem;
  }

  /* 3D Carousel on Small Mobile */
  .carousel-3d-stage {
    height: 230px;
  }

  .carousel-3d-card.card-active {
    width: 86%;
  }

  .carousel-3d-card.card-prev {
    left: 4%;
    width: 72%;
    opacity: 0.3;
  }

  .carousel-3d-card.card-next {
    right: 4%;
    width: 72%;
    opacity: 0.3;
  }

  .carousel-nav-btn {
    width: 34px;
    height: 34px;
    font-size: 0.85rem;
  }

  .carousel-nav-btn.prev {
    left: 3px;
  }

  .carousel-nav-btn.next {
    right: 3px;
  }

  .carousel-title-group h3 {
    font-size: 1.05rem;
  }

  .carousel-title-group p {
    font-size: 0.82rem;
  }

  .thumb-pill-btn {
    width: 50px;
    height: 34px;
  }

  /* Wire Gauge Compact Table */
  .gauge-wrapper {
    padding: 16px 10px;
  }

  .gauge-table th {
    padding: 9px 8px;
    font-size: 0.74rem;
  }

  .gauge-table td {
    padding: 9px 8px;
    font-size: 0.8rem;
  }

  .swg-pill {
    font-size: 0.78rem;
    padding: 2px 6px;
  }

  .badge-popular-star {
    display: none; /* Preserve column width on small phones */
  }

  .btn-quote-row {
    padding: 3px 8px;
    font-size: 0.7rem;
  }

  /* Location, Map & Contact Cards */
  .location-details-card {
    padding: 20px 14px;
  }

  .map-embed-box {
    height: 270px;
  }

  .contact-person-card {
    padding: 20px 14px;
  }

  .wechat-box-card {
    padding: 18px 14px;
  }

  .quote-form-card {
    padding: 22px 14px;
  }

  /* Floating WhatsApp on Mobile */
  .floating-whatsapp {
    width: 50px;
    height: 50px;
    font-size: 1.6rem;
    bottom: 20px;
    right: 18px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }
}

/* Ultra-Compact Screens (<= 360px: iPhone SE 1st Gen, Small Androids) */
@media (max-width: 360px) {
  .container {
    padding: 0 10px;
  }

  .brand-logo-img {
    width: 40px;
    height: 40px;
  }

  .brand-name {
    font-size: 0.88rem;
  }

  .brand-sub {
    font-size: 0.6rem;
  }

  .brand-bengali {
    font-size: 0.66rem;
  }

  .hero-title {
    font-size: 1.5rem;
  }

  .stat-num {
    font-size: 1.2rem;
  }

  .carousel-3d-stage {
    height: 200px;
  }
}