/* ==========================================================================
   BONGSHAI STEEL — ULTRA-PREMIUM INTERNATIONAL DESIGN SYSTEM
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&family=Outfit:wght@500;600;700;800;900&display=swap');

:root {
  /* Color Palette */
  --bg-obsidian: #090d16;
  --bg-dark-slate: #0f172a;
  --bg-surface: #1e293b;
  --bg-surface-hover: #334155;
  --bg-card: #ffffff;
  
  --primary-navy: #0466c8;
  --primary-glow: #0ea5e9;
  --accent-cyan: #38bdf8;
  --accent-gold: #f59e0b;
  --accent-green: #10b981;
  --accent-green-hover: #059669;

  --text-primary: #0f172a;
  --text-muted: #64748b;
  --text-light: #f8fafc;
  --text-dim: #94a3b8;
  
  --border-light: #e2e8f0;
  --border-dark: rgba(255, 255, 255, 0.1);
  --border-glow: rgba(14, 165, 233, 0.3);

  /* Elevation & Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 35px rgba(14, 165, 233, 0.2);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 50px;

  /* Fonts */
  --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Outfit', 'Plus Jakarta Sans', system-ui, sans-serif;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Overrides */
[data-theme="dark"] {
  --bg-card: #1e293b;
  --text-primary: #f8fafc;
  --text-muted: #cbd5e1;
  --border-light: rgba(255, 255, 255, 0.1);
  background-color: var(--bg-obsidian);
  color: var(--text-light);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background-color: #f8fafc;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  font-family: inherit;
  font-size: inherit;
}

/* SPA View Switching — only the active view renders */
.page-view {
  display: none;
}

.page-view.active-view {
  display: block;
}

/* Technical Grid Pattern Background */
.tech-grid-bg {
  background-image: 
    radial-gradient(circle, rgba(14, 165, 233, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* ==========================================================================
   TOP BRAND HEADER & UTILITY BAR
   ========================================================================== */

.top-header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-light);
  padding: 14px 0;
  font-size: 0.92rem;
  transition: background-color var(--transition-fast);
}

[data-theme="dark"] .top-header {
  background-color: var(--bg-obsidian);
  border-bottom-color: var(--border-dark);
}

.top-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.brand-wrapper {
  display: flex;
  flex-direction: column;
  min-width: 0;
  max-width: 100%;
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--primary-navy);
  letter-spacing: -0.5px;
  line-height: 1;
  min-width: 0;
}

[data-theme="dark"] .brand-title {
  color: #ffffff;
}

.brand-subtitle {
  font-size: 0.85rem;
  color: var(--accent-cyan);
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-top: 3px;
}

.top-contact-info {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 28px;
  max-width: 100%;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.92rem;
  flex-shrink: 0;
  white-space: nowrap;
}

.contact-item svg {
  width: 20px;
  height: 20px;
  color: var(--accent-green);
  flex-shrink: 0;
}

/* International Badge Pill */
.global-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(14, 165, 233, 0.1);
  border: 1px solid var(--border-glow);
  color: var(--accent-cyan);
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  max-width: 100%;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 1; }
  50% { transform: scale(1.2); opacity: 0.6; }
  100% { transform: scale(0.95); opacity: 1; }
}

/* ==========================================================================
   FROSTED GLASS STICKY NAVIGATION BAR
   ========================================================================== */

.main-navbar {
  background: rgba(4, 102, 200, 0.96);
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 10px 30px rgba(4, 102, 200, 0.25);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 18px 22px;
  color: #ffffff;
  font-weight: 700;
  font-size: 1rem;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
  background: none;
  border: none;
}

.nav-link:hover, .nav-link.active {
  background-color: rgba(255, 255, 255, 0.15);
  color: #ffffff;
}

.arrow-icon {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.nav-item:hover .arrow-icon {
  transform: rotate(180deg);
}

/* Mega Dropdown Menu */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: #ffffff;
  min-width: 320px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  border: 1px solid var(--border-light);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 1100;
  overflow: visible;
}

[data-theme="dark"] .dropdown-menu {
  background-color: var(--bg-surface);
  border-color: var(--border-dark);
}

.nav-item:hover .dropdown-menu,
.nav-item:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 22px;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 0.95rem;
  border-bottom: 1px solid #f1f5f9;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  background: none;
  border-left: none;
  border-right: none;
  border-top: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
}

[data-theme="dark"] .dropdown-link {
  border-bottom-color: var(--border-dark);
  color: #ffffff;
}

.dropdown-link:hover {
  background-color: rgba(14, 165, 233, 0.1);
  color: var(--primary-navy);
}

[data-theme="dark"] .dropdown-link:hover {
  color: var(--accent-cyan);
}

.dropdown-icon-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--primary-glow);
}

/* Flyout Submenu Styles */
.dropdown-item-wrap {
  position: relative;
}

.sub-arrow {
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: transform var(--transition-fast);
}

.dropdown-item-wrap:hover .sub-arrow {
  transform: translateX(3px);
  color: var(--primary-navy);
}

.nested-dropdown-menu {
  position: absolute;
  top: 0;
  left: 100%;
  background-color: #ffffff;
  min-width: 280px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
  border-radius: 0 var(--radius-md) var(--radius-md) var(--radius-md);
  border: 1px solid var(--border-light);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 1200;
  overflow: hidden;
}

[data-theme="dark"] .nested-dropdown-menu {
  background-color: var(--bg-surface);
  border-color: var(--border-dark);
}

.dropdown-item-wrap:hover .nested-dropdown-menu,
.dropdown-item-wrap:focus-within .nested-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.dropdown-sublink {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.9rem;
  border-bottom: 1px solid #f1f5f9;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  background: none;
  border-left: none;
  border-right: none;
  border-top: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
}

[data-theme="dark"] .dropdown-sublink {
  border-bottom-color: var(--border-dark);
  color: #ffffff;
}

.dropdown-sublink:hover {
  background-color: rgba(4, 102, 200, 0.08);
  color: var(--primary-navy);
}

[data-theme="dark"] .dropdown-sublink:hover {
  color: var(--accent-cyan);
}

/* Mobile Nested Submenu */
.mobile-nested-menu {
  list-style: none;
  padding-left: 16px;
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-nested-link {
  display: block;
  padding: 4px 0;
  font-size: 0.88rem;
  color: var(--text-dim);
  font-weight: 600;
  background: none;
  border: none;
  text-align: left;
  width: 100%;
  cursor: pointer;
}

.mobile-nested-link:hover {
  color: var(--accent-cyan);
}

/* Header Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.theme-toggle {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.05);
}

.btn-quote {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-weight: 800;
  font-size: 0.95rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
  border: none;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.btn-quote:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.5);
}

.hamburger {
  display: none;
  background: none;
  border: none;
  color: #ffffff;
  font-size: 1.6rem;
  cursor: pointer;
  padding: 8px;
}

/* Mobile Navigation Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(9, 13, 22, 0.85);
  backdrop-filter: blur(8px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast);
}

.mobile-drawer.active {
  opacity: 1;
  visibility: visible;
}

.drawer-content {
  width: 320px;
  height: 100%;
  background-color: var(--bg-dark-slate);
  color: #ffffff;
  padding: 28px;
  overflow-y: auto;
  transform: translateX(-100%);
  transition: transform var(--transition-normal);
}

.mobile-drawer.active .drawer-content {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-dark);
}

.drawer-close {
  background: none;
  border: none;
  font-size: 1.6rem;
  cursor: pointer;
  color: #ffffff;
}

.mobile-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.mobile-link {
  display: block;
  padding: 10px 0;
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  background: none;
  border: none;
  text-align: left;
  width: 100%;
  cursor: pointer;
}

.mobile-sub-menu {
  list-style: none;
  padding-left: 18px;
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mobile-sub-link {
  display: block;
  padding: 6px 0;
  font-size: 0.95rem;
  color: var(--accent-cyan);
  font-weight: 700;
  background: none;
  border: none;
  text-align: left;
  width: 100%;
  cursor: pointer;
}

/* ==========================================================================
   WORLD-CLASS HERO BANNER (BRIGHT CORPORATE LIGHT THEME)
   ========================================================================== */

.hero-section {
  position: relative;
  background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 60%, #e2e8f0 100%);
  color: var(--text-primary);
  padding: 90px 24px 100px 24px;
  overflow: hidden;
}

.hero-section::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(4, 102, 200, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-container {
  max-width: 1320px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(4, 102, 200, 0.08);
  border: 1px solid rgba(4, 102, 200, 0.2);
  color: var(--primary-navy);
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 24px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.6rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -1px;
  color: #0f172a;
}

.hero-title span {
  background: linear-gradient(135deg, #0466c8 0%, #023e8a 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.2rem;
  color: #475569;
  margin-bottom: 36px;
  max-width: 560px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.btn-primary-hero {
  background: linear-gradient(135deg, #0466c8 0%, #023e8a 100%);
  color: #ffffff;
  padding: 16px 36px;
  border-radius: var(--radius-pill);
  font-weight: 800;
  font-size: 1.05rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  border: none;
  box-shadow: 0 8px 25px rgba(4, 102, 200, 0.3);
  cursor: pointer;
}

.btn-primary-hero:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(4, 102, 200, 0.5);
}

.btn-secondary-hero {
  background: #ffffff;
  border: 1px solid #cbd5e1;
  color: var(--primary-navy);
  padding: 16px 36px;
  border-radius: var(--radius-pill);
  font-weight: 800;
  font-size: 1.05rem;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.btn-secondary-hero:hover {
  border-color: var(--primary-navy);
  background: rgba(4, 102, 200, 0.05);
}

.hero-image-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-image-wrap img {
  width: 100%;
}

/* 3D Configurator UI */
.form-select-custom {
  width: 100%;
  padding: 10px 14px;
  background-color: #050811;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  color: #ffffff;
  font-size: 0.9rem;
  font-weight: 600;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-select-custom-light {
  width: 100%;
  padding: 11px 14px;
  background-color: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-sm);
  color: #0f172a;
  font-size: 0.9rem;
  font-weight: 700;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-select-custom-light:focus {
  border-color: var(--primary-navy);
}

.hero-image-wrap img {
  height: 460px;
  object-fit: cover;
}

/* Metallic Global Stats Ticker */
.stats-banner {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-light);
  padding: 35px 0;
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .stats-banner {
  background-color: var(--bg-dark-slate);
  border-bottom-color: var(--border-dark);
}

.stats-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 30px;
  text-align: center;
}

.stat-item h3 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--primary-navy);
  letter-spacing: -1px;
}

[data-theme="dark"] .stat-item h3 {
  color: var(--accent-cyan);
}

.stat-item p {
  color: var(--text-muted);
  font-weight: 700;
  font-size: 0.95rem;
}

/* ==========================================================================
   PRODUCTS CATALOG & CATEGORY CARDS
   ========================================================================== */

.section {
  padding: 80px 24px;
}

.container {
  max-width: 1320px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 55px;
}

.section-subtitle {
  color: var(--primary-glow);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

/* Category Feature Grid */
.category-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 30px;
  margin-bottom: 60px;
}

.cat-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  cursor: pointer;
}

.cat-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-glow);
  border-color: var(--primary-glow);
}

button.cat-card {
  display: block;
  width: 100%;
  padding: 0;
  text-align: left;
  font: inherit;
  color: inherit;
}

.coming-soon-badge {
  display: inline-block;
  background-color: rgba(100, 116, 139, 0.12);
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 800;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.5px;
}

.cat-card-img {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.cat-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.cat-card:hover .cat-card-img img {
  transform: scale(1.08);
}

.cat-card-body {
  padding: 26px;
}

.cat-card-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.cat-card-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 20px;
  line-height: 1.6;
}

.cat-card-link {
  color: var(--primary-navy);
  font-weight: 800;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

[data-theme="dark"] .cat-card-link {
  color: var(--accent-cyan);
}

/* Catalog Groups (Products view, grouped by sub-category) */
.catalog-group {
  margin-bottom: 55px;
}

.catalog-group:last-child {
  margin-bottom: 0;
}

.catalog-group-header {
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--border-light);
}

.catalog-group-header h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
}

.catalog-group-header h3 span {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-left: 8px;
}

/* Product Model Grid & Cards */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 32px;
}

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

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

.product-thumb {
  position: relative;
  height: 250px;
  overflow: hidden;
  background-color: #f1f5f9;
}

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

.product-card:hover .product-thumb img {
  transform: scale(1.06);
}

.product-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(9, 13, 22, 0.85);
  backdrop-filter: blur(6px);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.5px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.product-body {
  padding: 26px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-category {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--primary-navy);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

[data-theme="dark"] .product-category {
  color: var(--accent-cyan);
}

.product-name {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.3;
}

.product-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.6;
}

.product-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 24px;
  padding: 14px;
  background-color: rgba(14, 165, 233, 0.05);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  border: 1px solid var(--border-light);
}

.spec-item {
  display: flex;
  flex-direction: column;
}

.spec-label {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.spec-val {
  font-weight: 800;
  color: var(--text-primary);
}

.product-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid var(--border-light);
}

.product-price {
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--primary-navy);
}

[data-theme="dark"] .product-price {
  color: var(--accent-cyan);
}

.btn-detail {
  background-color: rgba(4, 102, 200, 0.1);
  color: var(--primary-navy);
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  font-weight: 800;
  font-size: 0.88rem;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

[data-theme="dark"] .btn-detail {
  background-color: rgba(14, 165, 233, 0.15);
  color: var(--accent-cyan);
}

.btn-detail:hover {
  background-color: var(--primary-navy);
  color: #ffffff;
}

.btn-get-quote {
  background-color: var(--accent-green);
  color: #ffffff;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  font-weight: 800;
  font-size: 0.88rem;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.btn-get-quote:hover {
  background-color: var(--accent-green-hover);
}

/* ==========================================================================
   GLASS DYNAMIC MODAL DRAWER
   ========================================================================== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(9, 13, 22, 0.85);
  backdrop-filter: blur(8px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast);
}

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

.modal-box {
  background-color: var(--bg-card);
  width: 100%;
  max-width: 680px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.4);
  transform: translateY(20px);
  transition: transform var(--transition-fast);
  border: 1px solid var(--border-light);
}

.modal-overlay.active .modal-box {
  transform: translateY(0);
}

.modal-header {
  background: linear-gradient(135deg, #0466c8 0%, #023e8a 100%);
  color: #ffffff;
  padding: 24px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
}

.modal-close {
  background: none;
  border: none;
  color: #ffffff;
  font-size: 1.6rem;
  cursor: pointer;
}

.modal-body {
  padding: 30px;
  max-height: 80vh;
  overflow-y: auto;
}

.modal-spec-grid {
  background-color: rgba(14, 165, 233, 0.05);
  padding: 20px;
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  border: 1px solid var(--border-light);
}

.form-field {
  margin-bottom: 18px;
}

.form-field label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text-primary);
  background-color: var(--bg-card);
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--primary-glow);
}

.form-field textarea {
  resize: vertical;
}

.btn-modal-cta {
  width: 100%;
  background: linear-gradient(135deg, #0466c8 0%, #023e8a 100%);
  color: #ffffff;
  padding: 16px;
  border: none;
  border-radius: var(--radius-pill);
  font-weight: 800;
  font-size: 1.05rem;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(4, 102, 200, 0.3);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.footer {
  background-color: var(--bg-obsidian);
  color: var(--text-dim);
  padding: 70px 24px 35px 24px;
  border-top: 1px solid var(--border-dark);
}

.footer-container {
  max-width: 1320px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 50px;
  margin-bottom: 50px;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 24px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links button {
  background: none;
  border: none;
  color: var(--text-dim);
  text-align: left;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.footer-links button:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  max-width: 1320px;
  margin: 0 auto;
  padding-top: 30px;
  border-top: 1px solid var(--border-dark);
  text-align: center;
  font-size: 0.88rem;
  color: #64748b;
}

/* Floating WhatsApp Widget */
.whatsapp-widget {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background-color: #25d366;
  color: #ffffff;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4);
  z-index: 2500;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
}

.whatsapp-widget:hover {
  transform: scale(1.1);
  box-shadow: 0 14px 35px rgba(37, 211, 102, 0.6);
}

.whatsapp-widget svg {
  width: 34px;
  height: 34px;
  fill: currentColor;
}

/* Responsive Rules */
@media (max-width: 1024px) {
  .top-container {
    flex-direction: column;
    align-items: flex-start;
  }
  .hero-container {
    grid-template-columns: 1fr;
  }
  .frame-customizer-grid {
    grid-template-columns: 1fr !important;
  }
  .frame-customizer-grid > div {
    min-width: 0;
  }
  .estimator-main-grid {
    grid-template-columns: 1fr !important;
  }
  .estimator-main-grid > div {
    min-width: 0;
  }
  .nav-menu {
    display: none;
  }
  .hamburger {
    display: block;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 2.4rem;
  }
  .section-title {
    font-size: 2rem;
  }
  .products-grid,
  .category-cards-grid {
    grid-template-columns: 1fr;
  }
  .modal-spec-grid {
    grid-template-columns: 1fr;
  }
  .estimator-stats-grid {
    grid-template-columns: 1fr !important;
  }
}