/* ==========================================================================
   Stahlfix GmbH - Design System & Modern Industrial Stylesheet
   Color Identity: Deep Carbon, Steel Blue, Vibrant Cyan, Brushed Silver
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Space Grotesk', var(--font-sans);

  /* Industrial Colors */
  --bg-dark: #070a11;
  --bg-surface: #0e1626;
  --bg-surface-elevated: #141f36;
  --bg-card: rgba(16, 25, 44, 0.65);
  --bg-card-hover: rgba(22, 34, 60, 0.85);
  --bg-glass: rgba(11, 18, 32, 0.78);

  /* Brand Accents (derived from the official Stahlfix logo) */
  --cyan-primary: #00d2ff;
  --blue-primary: #0072ff;
  --cyan-glow: rgba(0, 210, 255, 0.35);
  --steel-gold: #f59e0b;
  --steel-gold-glow: rgba(245, 158, 11, 0.25);

  /* Typography Colors */
  --text-main: #f8fafc;
  --text-dim: #cbd5e1;
  --text-muted: #8492a6;
  --text-dark: #0f172a;

  /* Borders & Shadows */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-active: rgba(0, 210, 255, 0.4);
  --border-glow: 0 0 20px rgba(0, 210, 255, 0.25);
  --shadow-card: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 35px -5px rgba(0, 210, 255, 0.3);

  /* Transitions */
  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.15s ease-out;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  background: radial-gradient(circle at 50% 0%, #0d1930 0%, #070a11 60%);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
  background: #1e293b;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--cyan-primary);
}

/* Typography Utilities */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
  color: var(--text-main);
  line-height: 1.2;
}

p {
  line-height: 1.65;
  color: var(--text-dim);
}

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

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* Gradient Text Effect */
.gradient-text {
  background: linear-gradient(135deg, #ffffff 20%, var(--cyan-primary) 80%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-accent {
  background: linear-gradient(135deg, var(--cyan-primary) 0%, var(--blue-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Section Title System */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  border-radius: 9999px;
  background: rgba(0, 210, 255, 0.08);
  border: 1px solid rgba(0, 210, 255, 0.3);
  color: var(--cyan-primary);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}

.section-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan-primary);
  box-shadow: 0 0 8px var(--cyan-primary);
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3.5rem auto;
}

.section-header h2 {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.85rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  border: none;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--cyan-primary) 0%, var(--blue-primary) 100%);
  color: #030a16;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(0, 210, 255, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0, 210, 255, 0.5);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--cyan-primary);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 1.1rem 0;
  transition: var(--transition-smooth);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  padding: 0.75rem 0;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border-subtle);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-logo img {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #ffffff;
}

.brand-sub {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--cyan-primary);
  text-transform: uppercase;
  font-weight: 600;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.desktop-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-dim);
  position: relative;
  padding: 0.4rem 0;
}

.desktop-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--cyan-primary);
  transition: var(--transition-smooth);
}

.desktop-nav a:hover {
  color: #ffffff;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Language Toggle Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 3px;
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.lang-btn.active {
  background: var(--cyan-primary);
  color: #050b14;
  box-shadow: 0 0 10px var(--cyan-glow);
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.5rem;
  border-radius: 6px;
  cursor: pointer;
}

/* Mobile Drawer */
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 101;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-smooth);
}

.mobile-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  height: 100%;
  background: var(--bg-surface);
  border-left: 1px solid var(--border-subtle);
  z-index: 102;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transition: var(--transition-smooth);
}

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

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.mobile-nav-links a {
  font-size: 1.1rem;
  font-weight: 600;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  padding-top: 8.5rem;
  padding-bottom: 5rem;
  display: flex;
  align-items: center;
  z-index: 1;
}

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

.hero-content h1 {
  font-size: clamp(2.4rem, 4.8vw, 3.8rem);
  font-weight: 800;
  line-height: 1.12;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-dim);
  max-width: 620px;
  margin-bottom: 2.2rem;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem;
  margin-bottom: 3.5rem;
}

/* Hero Visual & Lottie Showcase Card */
.hero-visual-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(12px);
  overflow: hidden;
}

.hero-visual-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan-primary), transparent);
}

.hero-image-wrapper {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  height: 280px;
}

.hero-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.hero-visual-card:hover .hero-image-wrapper img {
  transform: scale(1.04);
}

.hero-lottie-badge {
  position: absolute;
  bottom: 25px;
  right: 25px;
  width: 110px;
  height: 110px;
  background: rgba(10, 16, 30, 0.85);
  border: 1px solid var(--border-active);
  border-radius: 50%;
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-glow);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-floating-info {
  margin-top: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
}

.live-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--cyan-primary);
  font-weight: 600;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 10px #10b981;
  animation: pulse-dot 1.8s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

/* Metric Counter Grid */
.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
}

.stat-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 1.25rem 1rem;
  transition: var(--transition-smooth);
}

.stat-box:hover {
  border-color: var(--border-active);
  background: rgba(0, 210, 255, 0.03);
  transform: translateY(-3px);
}

.counter-val {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 800;
  color: #ffffff;
  display: block;
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

/* ==========================================================================
   Quick Features Ribbon
   ========================================================================== */
.features-ribbon {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(14, 22, 38, 0.4);
}

.ribbon-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.ribbon-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.ribbon-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: 10px;
  background: rgba(0, 210, 255, 0.1);
  border: 1px solid rgba(0, 210, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan-primary);
  font-size: 1.25rem;
}

.ribbon-text h4 {
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

.ribbon-text p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ==========================================================================
   Interactive Steel Weight Calculator Section
   ========================================================================== */
.calculator-section {
  padding: 6.5rem 0;
  position: relative;
}

.calc-wrapper {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(14px);
  position: relative;
  overflow: hidden;
}

.calc-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(0, 210, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

/* Calculator Tabs */
.calc-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1rem;
}

.calc-tab-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  color: var(--text-dim);
  padding: 0.65rem 1.3rem;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.calc-tab-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

.calc-tab-btn.active {
  background: var(--cyan-primary);
  color: #050b14;
  font-weight: 700;
  border-color: var(--cyan-primary);
  box-shadow: 0 0 15px var(--cyan-glow);
}

/* Calculator Grid */
.calc-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 3rem;
}

.calc-pane {
  display: none;
}

.calc-pane.active {
  display: block;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
}

.form-control, .calc-input {
  width: 100%;
  background: rgba(10, 16, 30, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  color: #ffffff;
  outline: none;
  transition: var(--transition-fast);
  font-family: inherit;
}

.form-control:focus, .calc-input:focus {
  border-color: var(--cyan-primary);
  box-shadow: 0 0 12px var(--cyan-glow);
  background: rgba(10, 16, 30, 0.95);
}

select.calc-input {
  cursor: pointer;
}

select.calc-input option {
  background: #0f172a;
  color: #ffffff;
}

/* Results Card */
.calc-results-card {
  background: rgba(7, 12, 22, 0.85);
  border: 1px solid var(--border-active);
  border-radius: 14px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-glow);
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.result-row:last-of-type {
  border-bottom: none;
}

.result-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.result-value {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
}

.result-highlight {
  font-size: 1.75rem;
  color: var(--cyan-primary);
}

.tons-val {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: right;
  margin-top: -0.25rem;
}

/* ==========================================================================
   Product Range Section
   ========================================================================== */
.products-section {
  padding: 6.5rem 0;
  position: relative;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
  backdrop-filter: blur(10px);
}

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

.product-thumb {
  height: 200px;
  position: relative;
  overflow: hidden;
}

.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.product-body {
  padding: 1.75rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.product-body h3 {
  font-size: 1.3rem;
  margin-bottom: 0.6rem;
}

.product-sub {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

.product-features {
  list-style: none;
  margin-top: auto;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
}

.product-features li {
  font-size: 0.85rem;
  color: var(--text-dim);
  padding: 0.35rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.product-features li::before {
  content: '✓';
  color: var(--cyan-primary);
  font-weight: bold;
}

/* ==========================================================================
   Quality & Standards Section
   ========================================================================== */
.quality-section {
  padding: 6.5rem 0;
  position: relative;
}

.quality-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.quality-showcase-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.quality-lottie-center {
  width: 160px;
  height: 160px;
  margin: 0 auto 1.5rem auto;
}

.quality-badges-row {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.cert-pill {
  background: rgba(0, 210, 255, 0.08);
  border: 1px solid rgba(0, 210, 255, 0.3);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--cyan-primary);
}

.quality-items-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.quality-item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  transition: var(--transition-smooth);
}

.quality-item:hover {
  border-color: var(--border-active);
  background: rgba(0, 210, 255, 0.03);
  transform: translateX(6px);
}

.quality-item h4 {
  font-size: 1.1rem;
  color: #ffffff;
  margin-bottom: 0.35rem;
}

.quality-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ==========================================================================
   About & Corporate Identity Section
   ========================================================================== */
.about-section {
  padding: 6.5rem 0;
  position: relative;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.about-content h2 {
  font-size: clamp(2rem, 3.5vw, 2.6rem);
  margin-bottom: 1.5rem;
}

.about-content p {
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
}

.about-bullets {
  list-style: none;
  margin: 1.75rem 0;
}

.about-bullets li {
  font-size: 0.95rem;
  color: var(--text-main);
  padding: 0.45rem 0;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.about-bullets li svg {
  color: var(--cyan-primary);
  flex-shrink: 0;
}

/* Corporate Data Card */
.corporate-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 2.25rem;
  box-shadow: var(--shadow-card);
  position: relative;
}

.corporate-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--cyan-primary);
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.75rem;
}

.corp-data-row {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.9rem;
}

.corp-data-row:last-child {
  border-bottom: none;
}

.corp-label {
  color: var(--text-muted);
}

.corp-val {
  font-weight: 600;
  color: #ffffff;
  text-align: right;
}

/* ==========================================================================
   RFQ Inquiry & Contact Section
   ========================================================================== */
.rfq-section {
  padding: 6.5rem 0;
  position: relative;
}

.rfq-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 3.5rem;
}

.rfq-form-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: var(--shadow-card);
  position: relative;
}

.rfq-form-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan-primary), transparent);
}

.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
  margin: 1.25rem 0;
}

.form-checkbox-label input[type="checkbox"] {
  margin-top: 0.2rem;
  accent-color: var(--cyan-primary);
}

.highlight-pulse {
  animation: pulse-ring 1.5s ease-out;
}

@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(0, 210, 255, 0.8); border-color: var(--cyan-primary); }
  70% { box-shadow: 0 0 0 12px rgba(0, 210, 255, 0); border-color: var(--cyan-primary); }
  100% { box-shadow: 0 0 0 0 rgba(0, 210, 255, 0); }
}

/* RFQ Success State Card */
.rfq-success-card {
  display: none;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.4);
  border-radius: 16px;
  padding: 3rem 2rem;
  text-align: center;
}

.success-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #10b981;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 1.5rem auto;
}

.rfq-success-card h3 {
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
}

/* Contact Info Cards Side */
.contact-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 1.5rem;
  transition: var(--transition-smooth);
}

.contact-info-card:hover {
  border-color: var(--border-active);
  background: var(--bg-card-hover);
}

.contact-card-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 0.75rem;
}

.contact-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(0, 210, 255, 0.1);
  color: var(--cyan-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
}

.contact-info-card h4 {
  font-size: 1.05rem;
}

.contact-info-card p, .contact-info-card a {
  font-size: 0.95rem;
  color: var(--text-dim);
}

.contact-info-card a:hover {
  color: var(--cyan-primary);
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-section {
  padding: 6.5rem 0;
  position: relative;
}

.faq-list {
  max-width: 850px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.faq-item.active {
  border-color: var(--border-active);
}

.faq-question {
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.faq-question h3 {
  font-size: 1.05rem;
  font-weight: 600;
  padding-right: 1rem;
}

.faq-toggle-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan-primary);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.35s ease;
  padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
  max-height: 200px;
  padding: 0 1.5rem 1.5rem 1.5rem;
}

.faq-answer p {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: #04070d;
  border-top: 1px solid var(--border-subtle);
  padding: 5rem 0 2rem 0;
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 1rem;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: 1.25rem;
  color: #ffffff;
}

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

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

.footer-links a:hover {
  color: var(--cyan-primary);
  transform: translateX(3px);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-corp-meta {
  display: flex;
  gap: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Custom Toast & Legal Modals
   ========================================================================== */
.custom-toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--cyan-primary);
  box-shadow: var(--shadow-glow);
  color: #ffffff;
  padding: 1rem 1.5rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  z-index: 999;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.custom-toast.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* Legal Modals */
.legal-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-smooth);
}

.legal-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
}

.modal-content {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  max-width: 650px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 2.5rem;
  box-shadow: var(--shadow-card);
  z-index: 1;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1rem;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem;
  line-height: 1;
}

.modal-close:hover {
  color: #ffffff;
}

.modal-body h4 {
  margin: 1.25rem 0 0.5rem 0;
  font-size: 1.05rem;
  color: var(--cyan-primary);
}

.modal-body p {
  font-size: 0.92rem;
  margin-bottom: 0.85rem;
  color: var(--text-dim);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1100px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hero-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .desktop-nav {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .calc-grid {
    grid-template-columns: 1fr;
  }
  .quality-grid {
    grid-template-columns: 1fr;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .rfq-grid {
    grid-template-columns: 1fr;
  }
  .ribbon-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .hero-stats-grid {
    grid-template-columns: 1fr;
  }
  .ribbon-grid {
    grid-template-columns: 1fr;
  }
  .products-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .calc-wrapper, .rfq-form-card {
    padding: 1.5rem;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}