/* ==========================================================================
   KINGSGATE ELECTRONIC SERVICES (radio.sc) - Modern Design System
   ========================================================================== */

:root {
  --primary: #f97316;
  --primary-hover: #ea580c;
  --primary-light: #ffedd5;
  --primary-glow: rgba(249, 115, 22, 0.25);
  
  --dark-900: #090e17;
  --dark-800: #0f172a;
  --dark-700: #1e293b;
  --dark-600: #334155;
  
  --light-50: #f8fafc;
  --light-100: #f1f5f9;
  --light-200: #e2e8f0;
  
  --text-dark: #0f172a;
  --text-muted: #64748b;
  --text-light: #f8fafc;
  
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  
  --font-heading: 'Outfit', 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px -2px rgba(0,0,0,0.08), 0 2px 6px -1px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 30px -4px rgba(0,0,0,0.12), 0 4px 12px -2px rgba(0,0,0,0.06);
  --shadow-glow: 0 0 35px var(--primary-glow);
  
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  color-scheme: light;
}

body {
  font-family: var(--font-body);
  background-color: var(--light-50);
  color: var(--text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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;
  font-size: inherit;
}

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Top Emergency Bar */
.top-emergency-bar {
  background: linear-gradient(90deg, var(--dark-900) 0%, var(--dark-800) 100%);
  color: #94a3b8;
  font-size: 0.8125rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-emergency-bar .bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.top-emergency-bar .status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #f1f5f9;
  font-weight: 500;
}

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

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.top-emergency-bar .top-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.top-emergency-bar .top-links a:hover {
  color: var(--primary);
}

/* Main Navigation Header */
.main-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--light-200);
  transition: all var(--transition-normal);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.75rem;
}

.brand-logo-link {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  text-decoration: none;
}

.brand-logo-img {
  height: 46px;
  width: auto;
  object-fit: contain;
}

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

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--dark-900);
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.brand-subtitle {
  font-size: 0.6875rem;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
}

/* Navigation Links */
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 0.95rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--dark-600);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.nav-link:hover {
  color: var(--primary);
  background-color: rgba(249, 115, 22, 0.06);
}

.nav-link.active {
  color: var(--primary);
  background-color: var(--primary-light);
  font-weight: 700;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6875rem 1.35rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  color: #fff;
  box-shadow: 0 4px 14px rgba(234, 88, 12, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(234, 88, 12, 0.45);
  color: #fff;
}

.btn-outline {
  background: transparent;
  border-color: var(--light-200);
  color: var(--dark-700);
}

.btn-outline:hover {
  background: var(--light-100);
  border-color: var(--dark-600);
  color: var(--dark-900);
}

.btn-dark {
  background: var(--dark-900);
  color: #fff;
}

.btn-dark:hover {
  background: var(--dark-700);
  color: #fff;
  transform: translateY(-1px);
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.8125rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.875rem 1.85rem;
  font-size: 1.0625rem;
  border-radius: var(--radius-md);
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--dark-900);
  cursor: pointer;
  padding: 0.5rem;
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 82%;
  max-width: 380px;
  height: 100vh;
  background: #fff;
  z-index: 2000;
  box-shadow: -10px 0 30px rgba(0,0,0,0.15);
  transition: right var(--transition-normal);
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
}

.mobile-drawer.open {
  right: 0;
}

.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 1999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.drawer-backdrop.open {
  opacity: 1;
  visibility: visible;
}

/* Hero Section */
.hero-section {
  position: relative;
  background: linear-gradient(145deg, var(--dark-900) 0%, #0d1527 60%, #152238 100%);
  color: #fff;
  padding: 5rem 0 6rem;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.15) 0%, rgba(6, 182, 212, 0.08) 50%, transparent 70%);
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1rem;
  background: rgba(249, 115, 22, 0.15);
  border: 1px solid rgba(249, 115, 22, 0.35);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.25rem;
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  color: #fff;
}

.hero-title .text-gradient {
  background: linear-gradient(135deg, #ffedd5 0%, var(--primary) 50%, #fba75d 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.125rem;
  line-height: 1.65;
  color: #94a3b8;
  margin-bottom: 2.25rem;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.75rem;
}

.hero-quick-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.quick-feature-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.quick-feature-item .qf-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
}

.quick-feature-item .qf-desc {
  font-size: 0.8125rem;
  color: #94a3b8;
  line-height: 1.35;
}

/* Hero Showcase Card */
.hero-card-stack {
  position: relative;
}

.hero-main-card {
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
  backdrop-filter: blur(16px);
  position: relative;
}

.hero-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-card-header .sys-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-emerald);
}

.hero-card-img-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 1.5rem;
  background: var(--dark-900);
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.hero-main-card:hover .hero-card-img-wrap img {
  transform: scale(1.04);
}

.hero-card-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(9, 14, 23, 0.85);
  backdrop-filter: blur(8px);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.hero-metric-tile {
  background: rgba(15, 23, 42, 0.6);
  padding: 0.875rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.hero-metric-tile .hm-label {
  font-size: 0.75rem;
  color: #94a3b8;
  display: block;
  margin-bottom: 0.2rem;
}

.hero-metric-tile .hm-val {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #f1f5f9;
}

/* Brands & Partners Section */
.partners-section {
  padding: 3.5rem 0;
  background: #fff;
  border-bottom: 1px solid var(--light-200);
}

.section-label-center {
  text-align: center;
  margin-bottom: 2rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.section-heading {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--dark-900);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.0625rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0.75rem auto 0;
}

.brands-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1.25rem;
  align-items: center;
}

.brand-card-item {
  background: var(--light-50);
  border: 1px solid var(--light-200);
  border-radius: var(--radius-md);
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 96px;
  transition: all var(--transition-fast);
}

.brand-card-item:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  background: #fff;
}

.brand-card-item img {
  max-height: 48px;
  max-width: 110px;
  object-fit: contain;
  filter: grayscale(80%) opacity(85%);
  transition: all var(--transition-fast);
}

.brand-card-item:hover img {
  filter: grayscale(0%) opacity(100%);
}

/* Feature Sections */
.section {
  padding: 5.5rem 0;
}

.section-bg-alt {
  background-color: #fff;
  border-top: 1px solid var(--light-200);
  border-bottom: 1px solid var(--light-200);
}

.section-bg-dark {
  background: linear-gradient(145deg, var(--dark-900) 0%, var(--dark-800) 100%);
  color: #fff;
}

.section-bg-dark .section-heading {
  color: #fff;
}

.section-bg-dark .section-desc {
  color: #94a3b8;
}

/* Product Cards Grid */
.product-filters-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  justify-content: center;
}

.filter-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.15rem;
  background: #fff;
  border: 1px solid var(--light-200);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--dark-600);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-pill:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.filter-pill.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px var(--primary-glow);
}

.search-sort-bar {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  align-items: center;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.search-input-wrap {
  position: relative;
  flex: 1;
}

.search-input-wrap i {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.search-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  background: #fff;
  border: 1px solid var(--light-200);
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.75rem;
}

.product-card {
  background: #fff;
  border: 1px solid var(--light-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(249, 115, 22, 0.4);
  box-shadow: var(--shadow-lg);
}

.product-card-img-wrap {
  background: var(--light-100);
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

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

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

.product-badge-tag {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--dark-900);
  color: #fff;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
}

.product-badge-brand {
  position: absolute;
  bottom: 0.75rem;
  left: 1rem;
  background: rgba(255, 255, 255, 0.9);
  color: var(--dark-700);
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--light-200);
}

.product-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark-900);
  margin-bottom: 0.6rem;
  line-height: 1.3;
}

.product-card-summary {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card-specs-list {
  list-style: none;
  margin-bottom: 1.5rem;
  margin-top: auto;
  border-top: 1px solid var(--light-100);
  padding-top: 0.875rem;
}

.product-card-specs-list li {
  font-size: 0.8125rem;
  display: flex;
  justify-content: space-between;
  padding: 0.25rem 0;
  color: var(--dark-600);
}

.product-card-specs-list li strong {
  color: var(--dark-900);
  font-weight: 600;
}

.product-card-footer {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
}

.service-card {
  background: #fff;
  border: 1px solid var(--light-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(249, 115, 22, 0.4);
}

.service-card-img {
  height: 200px;
  background: var(--dark-900);
  overflow: hidden;
}

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

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

.service-card-body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.service-icon-badge {
  width: 52px;
  height: 52px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  margin-bottom: 1.25rem;
}

.service-card-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--dark-900);
  margin-bottom: 0.75rem;
  line-height: 1.25;
}

.service-card-desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.service-deliverables {
  list-style: none;
  margin-top: auto;
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.service-deliverables li {
  font-size: 0.875rem;
  color: var(--dark-700);
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.service-deliverables li i {
  color: var(--primary);
  font-size: 0.75rem;
  margin-top: 0.3rem;
}

/* Sectors Grid */
.sectors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.sector-card {
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: all var(--transition-fast);
}

.sector-card:hover {
  background: rgba(30, 41, 59, 0.95);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.sector-icon {
  font-size: 1.75rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.sector-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
}

.sector-desc {
  font-size: 0.875rem;
  color: #94a3b8;
  line-height: 1.5;
}

/* Interactive Quote Builder / RFQ */
.quote-builder-container {
  background: #fff;
  border: 1px solid var(--light-200);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.qb-header {
  background: linear-gradient(135deg, var(--dark-900) 0%, var(--dark-800) 100%);
  color: #fff;
  padding: 2.5rem 2rem;
  text-align: center;
}

.qb-header h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.qb-body {
  padding: 2.5rem 2rem;
}

.qb-step-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark-900);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.qb-step-title .step-num {
  width: 28px;
  height: 28px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
}

.qb-options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.qb-option-card {
  border: 2px solid var(--light-200);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.qb-option-card:hover {
  border-color: var(--primary);
}

.qb-option-card.selected {
  border-color: var(--primary);
  background: rgba(249, 115, 22, 0.05);
}

.qb-option-card .opt-title {
  font-weight: 700;
  color: var(--dark-900);
  font-size: 0.95rem;
}

.qb-option-card .opt-sub {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--dark-700);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--light-200);
  border-radius: var(--radius-sm);
  background: #fff;
  font-size: 0.9375rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

/* Modal Drawer for Product Details */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(9, 14, 23, 0.75);
  backdrop-filter: blur(8px);
  z-index: 3000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: #fff;
  width: 100%;
  max-width: 820px;
  max-height: 90vh;
  border-radius: var(--radius-xl);
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  position: relative;
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.modal-backdrop.open .modal-card {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 38px;
  height: 38px;
  background: var(--light-100);
  border: none;
  border-radius: 50%;
  font-size: 1.1rem;
  color: var(--dark-700);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 10;
}

.modal-close-btn:hover {
  background: var(--dark-900);
  color: #fff;
}

/* Contact Info Cards */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 3rem;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-card-item {
  background: #fff;
  border: 1px solid var(--light-200);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.contact-card-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-card-content h4 {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--dark-900);
  margin-bottom: 0.25rem;
}

.contact-card-content p {
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.contact-card-content a {
  color: var(--primary);
  font-weight: 600;
}

/* Floating 24/7 Support Hotline Button */
.floating-hotline-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1500;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: linear-gradient(135deg, var(--dark-900) 0%, var(--dark-800) 100%);
  color: #fff;
  padding: 0.75rem 1.35rem 0.75rem 1rem;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 25px rgba(0,0,0,0.3), 0 0 0 2px rgba(249, 115, 22, 0.4);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 700;
  transition: all var(--transition-fast);
}

.floating-hotline-btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 35px rgba(0,0,0,0.4), 0 0 0 3px var(--primary);
  color: #fff;
}

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

/* Footer */
.main-footer {
  background: var(--dark-900);
  color: #94a3b8;
  padding: 5rem 0 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.25fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.75rem;
}

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  max-width: 320px;
}

.footer-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links li a {
  font-size: 0.875rem;
  color: #94a3b8;
  transition: color var(--transition-fast);
}

.footer-links li a:hover {
  color: var(--primary);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8125rem;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .desktop-nav, .nav-actions .btn-quote {
    display: none;
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .hero-title {
    font-size: 2.35rem;
  }
  
  .hero-quick-features {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .floating-hotline-btn span {
    display: none;
  }
  
  .floating-hotline-btn {
    padding: 0.75rem;
    bottom: 1.5rem;
    right: 1.5rem;
  }
}