/* ==========================================================================
   YIPEXRAIL - Enterprise Mobile-First Rail Industry Stylesheet
   Engineered to Siemens Mobility, TÜRASAŞ, Alstom & Deutsche Bahn Standards
   ========================================================================== */

:root {
  --primary: #071529;
  --primary-dark: #030A14;
  --primary-light: #0E223D;
  --accent-cyan: #00A3E0;
  --accent-blue: #005A9C;
  --accent-orange: #FF6A00;
  --accent-green: #10B981;
  --accent-glow: rgba(0, 163, 224, 0.2);
  --text-main: #0B1320;
  --text-muted: #52637D;
  --text-light: #F8FAFC;
  --bg-main: #FFFFFF;
  --bg-subtle: #F5F8FC;
  --bg-dark-card: #0A192F;
  --bg-dark-card-hover: #0D2240;
  --border-color: #E2E8F0;
  --border-dark: rgba(0, 163, 224, 0.22);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 8px rgba(7, 21, 41, 0.05);
  --shadow-md: 0 12px 30px -8px rgba(7, 21, 41, 0.1);
  --shadow-lg: 0 20px 45px -10px rgba(7, 21, 41, 0.18);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  color: var(--text-main);
  background-color: var(--bg-main);
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}

body {
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   Desktop Strict Isolation: Hide all mobile drawer & bottom bar elements
   ========================================================================== */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  right: -100%;
  width: 320px;
  max-width: 88vw;
  height: 100vh;
  background: #FFFFFF;
  box-shadow: -12px 0 35px rgba(0, 0, 0, 0.2);
  z-index: 2000;
  padding: 24px 20px;
  flex-direction: column;
  transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
}

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

.drawer-close {
  background: #F1F5F9;
  border: 1px solid var(--border-color);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  cursor: pointer;
  transition: var(--transition);
}

.drawer-close:hover,
.drawer-close:active {
  background: #E2E8F0;
  color: #DC2626;
}

.mobile-nav-links {
  list-style: none;
  padding: 0;
  margin: 0 0 20px 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 14px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  background: transparent;
  transition: var(--transition);
  border: 1px solid transparent;
}

.mobile-nav-link:hover,
.mobile-nav-link:active {
  background: var(--bg-subtle);
  color: var(--accent-cyan);
  border-color: var(--border-color);
  padding-left: 18px;
}

.mobile-drawer-contact {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.drawer-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(3, 10, 20, 0.65);
  backdrop-filter: blur(4px);
  z-index: 1999;
}

.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #FFFFFF;
  border-top: 1px solid var(--border-color);
  padding: 10px 16px;
  z-index: 999;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
}

.mobile-toggle {
  display: none;
  background: #F1F5F9;
  border: 1.5px solid #CBD5E1;
  border-radius: var(--radius-sm);
  width: 44px;
  height: 44px;
  color: #071529;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
}

.mobile-toggle:hover,
.mobile-toggle:active {
  background: #E2E8F0;
  color: var(--accent-blue);
}

@media (min-width: 1025px) {
  .mobile-drawer,
  .drawer-overlay,
  .mobile-bottom-bar,
  .mobile-toggle {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
    height: 0 !important;
    width: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    position: absolute !important;
    top: -9999px !important;
    left: -9999px !important;
  }
}

/* ==========================================================================
   Enterprise Top Bar (Contact & Status)
   ========================================================================== */
.top-bar {
  background: #030A14;
  color: #94A3B8;
  font-size: 12.5px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px 0;
  position: relative;
  z-index: 1001;
}

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

.top-bar-left, .top-bar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.top-bar-link {
  color: #CBD5E1;
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.top-bar-link:hover {
  color: var(--accent-cyan);
}

.status-dot {
  width: 7px;
  height: 7px;
  background: #10B981;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px #10B981;
}

.sep {
  opacity: 0.3;
}

/* ==========================================================================
   Header & Desktop Navigation
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  height: 76px;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-symbol,
.logo-symbol-img {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(0, 90, 156, 0.25);
  transition: var(--transition);
  flex-shrink: 0;
  object-fit: contain;
}

.logo-brand:hover .logo-symbol-img,
.logo-brand:hover .logo-symbol {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(0, 163, 224, 0.45);
}

.logo-text-title {
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.5px;
  color: var(--primary);
  line-height: 1.1;
}

.logo-text-title span {
  color: var(--accent-cyan);
}

.logo-text-subtitle {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  font-weight: 700;
}

/* Desktop Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 28px;
  margin: 0;
}

.nav-link {
  text-decoration: none;
  color: var(--primary);
  font-weight: 600;
  font-size: 14.5px;
  white-space: nowrap;
  transition: var(--transition);
  padding: 6px 2px;
  position: relative;
}

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

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

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

.nav-link.active-page {
  color: var(--accent-cyan);
  font-weight: 700;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

/* Language Switcher Pill */
.lang-switcher {
  display: flex;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 2px;
}

.lang-btn {
  border: none;
  background: transparent;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  border-radius: 5px;
  cursor: pointer;
  transition: var(--transition);
}

.lang-btn.active {
  background: var(--primary);
  color: #FFFFFF;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #005A9C 0%, #00A3E0 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(0, 90, 156, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 163, 224, 0.35);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.12);
  color: #FFFFFF;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.22);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--border-color);
  color: var(--primary);
}

.btn-outline:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-blue);
  background: var(--bg-subtle);
}

/* ==========================================================================
   Subpage Hero Banner & Breadcrumbs (High-Tech Enterprise Aesthetic)
   ========================================================================== */
.page-hero {
  background: linear-gradient(135deg, #030A14 0%, #071529 50%, #0B2240 100%);
  color: #FFFFFF;
  padding: 64px 0 56px;
  border-bottom: 1px solid rgba(0, 163, 224, 0.25);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 85% 30%, rgba(0, 163, 224, 0.18) 0%, transparent 50%),
    radial-gradient(circle at 15% 70%, rgba(0, 90, 156, 0.15) 0%, transparent 45%),
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 40px 40px, 40px 40px;
  pointer-events: none;
}

.page-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 920px;
}

.page-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  background: rgba(0, 163, 224, 0.16);
  border: 1px solid rgba(0, 163, 224, 0.4);
  border-radius: 30px;
  font-size: 12px;
  font-weight: 700;
  color: #7DD3FC;
  margin-bottom: 16px;
  backdrop-filter: blur(8px);
}

.page-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #94A3B8;
  margin-bottom: 12px;
}

.page-breadcrumb a {
  color: var(--accent-cyan);
  text-decoration: none;
  font-weight: 600;
}

.page-title {
  font-size: clamp(28px, 4.5vw, 44px);
  font-weight: 900;
  color: #FFFFFF;
  letter-spacing: -0.6px;
  margin-bottom: 16px;
  line-height: 1.15;
}

.page-desc {
  font-size: clamp(15px, 2vw, 17px);
  color: #CBD5E1;
  line-height: 1.65;
  max-width: 820px;
}

.page-hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  align-items: start;
}

.page-metric-item {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.page-metric-num {
  font-size: clamp(17px, 1.8vw, 22px);
  font-weight: 800;
  color: #38BDF8;
  white-space: nowrap;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.page-metric-lbl {
  font-size: 12px;
  color: #94A3B8;
  margin-top: 4px;
  line-height: 1.35;
}

/* ==========================================================================
   Home Hero Section (Cinematic Rail Engineering)
   ========================================================================== */
.hero {
  position: relative;
  min-height: 82vh;
  display: flex;
  align-items: center;
  padding: 100px 0 80px;
  background: #030A14 url('../assets/hero_train.jpg') no-repeat center center / cover;
  color: #FFFFFF;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg, 
    rgba(3, 10, 20, 0.95) 0%, 
    rgba(7, 21, 41, 0.88) 50%, 
    rgba(7, 21, 41, 0.45) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 840px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(0, 163, 224, 0.16);
  border: 1px solid rgba(0, 163, 224, 0.45);
  border-radius: 30px;
  font-size: clamp(11.5px, 2.5vw, 13px);
  font-weight: 700;
  color: #7DD3FC;
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-orange);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-orange);
}

.hero-title {
  font-size: clamp(28px, 5.2vw, 50px);
  font-weight: 900;
  color: #FFFFFF;
  letter-spacing: -0.8px;
  margin-bottom: 18px;
  line-height: 1.15;
}

.hero-subtitle {
  font-size: clamp(15px, 2.2vw, 17.5px);
  color: #CBD5E1;
  line-height: 1.65;
  margin-bottom: 32px;
  max-width: 740px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 44px;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.stat-number {
  font-size: clamp(22px, 3.5vw, 30px);
  font-weight: 900;
  color: #38BDF8;
}

.stat-label {
  font-size: 13px;
  color: #94A3B8;
  margin-top: 2px;
}

/* ==========================================================================
   Quick Portal Bar (Clean & Elevated)
   ========================================================================== */
.quick-portal-bar {
  position: relative;
  z-index: 10;
  margin-top: -40px;
  margin-bottom: 50px;
}

.portal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.portal-tile {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 18px;
  text-decoration: none;
  transition: var(--transition);
}

.portal-tile:hover {
  transform: translateY(-3px);
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-lg);
}

.portal-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.portal-info h4 {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 3px;
}

.portal-info p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ==========================================================================
   Sections Layout & Global Utility Classes
   ========================================================================== */
.section {
  padding: 80px 0;
}

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

.section-dark {
  background: var(--primary-dark);
  color: #FFFFFF;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 52px;
}

.section-tagline {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.8px;
  color: var(--accent-blue);
  margin-bottom: 10px;
  display: inline-block;
}

.section-dark .section-tagline {
  color: var(--accent-cyan);
}

.section-title {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.6px;
  margin-bottom: 14px;
}

.section-dark .section-title {
  color: #FFFFFF;
}

.section-desc {
  font-size: 16px;
  line-height: 1.6;
}

.section-dark .section-desc {
  color: #94A3B8;
}

.text-white {
  color: #FFFFFF !important;
}

.text-slate {
  color: #94A3B8 !important;
}

/* ==========================================================================
   STANDARDS & HOMOLOGATION CARDS (Ultra-Modern High-Tech Specification Matrix)
   ========================================================================== */
.standards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.standards-card {
  background: #FFFFFF;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.standards-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  opacity: 0;
  transition: var(--transition);
}

.standards-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-md);
}

.standards-card:hover::before {
  opacity: 1;
}

.standards-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.standards-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: #F0F9FF;
  border: 1px solid #BAE6FD;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  flex-shrink: 0;
}

.standards-norm-badge {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 10px;
  border-radius: 20px;
  background: #E0F2FE;
  color: #0369A1;
  border: 1px solid #BAE6FD;
}

.standards-card-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 10px;
  line-height: 1.25;
}

.standards-card-desc {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 22px;
  flex-grow: 1;
}

.standards-spec-box {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 20px;
}

.standards-spec-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  font-size: 13px;
}

.standards-spec-row:last-child {
  border-bottom: none;
}

.standards-spec-label {
  font-weight: 600;
  color: var(--text-muted);
}

.standards-spec-val {
  font-weight: 700;
  color: var(--primary);
  text-align: right;
}

.standards-pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.standards-pill-tag {
  font-size: 12px;
  font-weight: 700;
  color: #065F46;
  background: #ECFDF5;
  border: 1px solid #A7F3D0;
  padding: 4px 10px;
  border-radius: 20px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Legacy adv-card fallback support so no page breaks */
.adv-card {
  background: #FFFFFF;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.adv-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-md);
}

.adv-title {
  font-size: 19px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 10px;
}

.adv-desc {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   SYSTEMS & SUBSYSTEMS DETAILED SHOWCASE
   ========================================================================== */
.systems-showcase-list {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.system-detail-card {
  background: #FFFFFF;
  border: 1.5px solid var(--border-color);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 12px 32px -8px rgba(15, 23, 42, 0.08);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.system-detail-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 20px 48px -10px rgba(0, 163, 224, 0.2);
}

.system-detail-media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 540px;
  overflow: hidden;
  background: #030A14;
  border-bottom: 1.5px solid var(--border-color);
}

.system-detail-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  display: block;
}

.system-detail-card:hover .system-detail-media img {
  transform: scale(1.025);
}

.system-origin-badge {
  position: absolute;
  top: 22px;
  left: 22px;
  background: rgba(3, 10, 20, 0.88);
  backdrop-filter: blur(10px);
  color: #FFFFFF;
  padding: 7px 16px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  border: 1px solid rgba(0, 163, 224, 0.4);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
  z-index: 2;
}

.system-detail-body {
  padding: 38px 44px 42px;
  display: flex;
  flex-direction: column;
}

.system-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  flex-wrap: wrap;
  gap: 12px;
}

.system-cat-tag {
  font-size: 12.5px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent-cyan);
}

.system-norm-tag {
  font-size: 12px;
  font-weight: 700;
  color: #0369A1;
  background: #F0F9FF;
  border: 1px solid #BAE6FD;
  padding: 4px 12px;
  border-radius: 6px;
}

.system-title {
  font-size: 26px;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 4px;
  line-height: 1.2;
  letter-spacing: -0.3px;
}

.system-subtitle {
  font-size: 15px;
  font-weight: 700;
  color: var(--accent-blue);
  margin-bottom: 14px;
}

.system-description {
  font-size: 15.5px;
  color: #475569;
  line-height: 1.65;
  margin-bottom: 24px;
  max-width: 1040px;
}

/* 2-Column Split for Specs & Actions on Desktop */
.system-specs-layout {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 36px;
  align-items: stretch;
  padding-top: 20px;
  border-top: 1px solid #F1F5F9;
}

/* Specs Parameter Grid */
.system-param-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  background: #F8FAFC;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 0;
}

.system-param-item {
  display: flex;
  flex-direction: column;
}

.system-param-title {
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  color: #64748B;
  letter-spacing: 0.5px;
  margin-bottom: 3px;
}

.system-param-value {
  font-size: 13.5px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.35;
}

.system-action-side {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.system-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 22px;
  padding: 0;
}

.system-bullet-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: #334155;
  font-weight: 500;
  line-height: 1.4;
}

.system-bullet-item svg {
  flex-shrink: 0;
  width: 17px;
  height: 17px;
  color: #059669;
  margin-top: 2px;
}

.system-action-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}


/* 3-Column Portfolio Cards for Teasers */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.portfolio-card {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.portfolio-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: #CBD5E1;
}

.card-image-box {
  width: 100%;
  height: 200px;
  overflow: hidden;
  position: relative;
}

.card-image-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.card-category-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(7, 21, 41, 0.88);
  backdrop-filter: blur(6px);
  color: #FFFFFF;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

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

.card-title {
  font-size: 19px;
  font-weight: 800;
  margin-bottom: 5px;
}

.card-subtitle {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-blue);
  margin-bottom: 14px;
}

.card-desc {
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.card-features {
  list-style: none;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.card-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: #334155;
  font-weight: 500;
}

.card-feature-item svg {
  flex-shrink: 0;
  width: 15px;
  height: 15px;
  color: #10B981;
  margin-top: 3px;
}

/* ==========================================================================
   GLOBAL SOURCING CORRIDORS SECTION (Germany, Switzerland, France, China, Global)
   ========================================================================== */
.corridors-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.corridor-card {
  background: #0A192F;
  border: 1.5px solid rgba(0, 163, 224, 0.22);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.corridor-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-cyan);
  box-shadow: 0 12px 30px rgba(0, 163, 224, 0.15);
}

.corridor-region {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--accent-cyan);
  margin-bottom: 8px;
}

.corridor-title {
  font-size: 18px;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.corridor-desc {
  font-size: 13.5px;
  color: #CBD5E1;
  line-height: 1.55;
  margin-bottom: 16px;
  flex-grow: 1;
}

.corridor-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.corridor-tag {
  font-size: 11.5px;
  font-weight: 700;
  color: #93C5FD;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.25);
  padding: 3px 8px;
  border-radius: 4px;
}

/* ==========================================================================
   STRATEGIC ADVANTAGES (Enterprise Dark Grid)
   ========================================================================== */
.section-advantages {
  background: linear-gradient(180deg, #071529 0%, #030A14 100%);
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

.section-advantages::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(0, 163, 224, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 85% 30%, rgba(0, 90, 156, 0.15) 0%, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
  pointer-events: none;
}

.adv-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0, 163, 224, 0.15);
  border: 1px solid rgba(0, 163, 224, 0.4);
  border-radius: 30px;
  font-size: 12.5px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent-cyan);
  margin-bottom: 16px;
  backdrop-filter: blur(8px);
}

.adv-badge-dot {
  width: 7px;
  height: 7px;
  background: var(--accent-orange);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-orange);
}

.adv-grid-2x2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  position: relative;
  z-index: 2;
}

.adv-feature-card {
  background: #091930;
  border: 1.5px solid rgba(0, 163, 224, 0.22);
  border-radius: var(--radius-md);
  padding: 34px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}

.adv-feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-cyan);
  box-shadow: 0 20px 40px rgba(0, 163, 224, 0.16);
}

.adv-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.adv-icon-wrapper {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-sm);
  background: rgba(0, 163, 224, 0.12);
  border: 1px solid rgba(0, 163, 224, 0.35);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
}

.adv-number-badge {
  font-size: 12px;
  font-weight: 800;
  color: #7DD3FC;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 5px 12px;
  border-radius: 20px;
}

.adv-card-heading {
  font-size: 21px;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 12px;
  line-height: 1.3;
}

.adv-card-text {
  font-size: 15px;
  color: #CBD5E1;
  line-height: 1.65;
  margin-bottom: 24px;
  flex-grow: 1;
}

.adv-pill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: auto;
}

.adv-micro-tag {
  font-size: 12px;
  font-weight: 700;
  color: #34D399;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 5px 11px;
  border-radius: 20px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ==========================================================================
   DUAL-HUB STRUCTURE
   ========================================================================== */
.hubs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.hub-card {
  background: #0A192F;
  border: 1.5px solid rgba(0, 163, 224, 0.25);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.hub-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 16px 36px rgba(0, 163, 224, 0.16);
  transform: translateY(-3px);
}

.hub-badge {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}

.hub-title {
  font-size: 22px;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 6px;
}

.hub-role {
  font-size: 14px;
  font-weight: 600;
  color: #94A3B8;
  margin-bottom: 16px;
}

.hub-desc {
  font-size: 14.5px;
  color: #CBD5E1;
  line-height: 1.65;
  margin-bottom: 24px;
}

.hub-contact-card {
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13.5px;
  color: #CBD5E1;
  margin-top: auto;
}

.hub-contact-card a {
  color: var(--accent-cyan);
  text-decoration: none;
  font-weight: 600;
}

/* Facility Feature */
.facility-spotlight {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-top: 40px;
  background: #071529;
}

.facility-spotlight-img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  display: block;
  opacity: 0.42;
}

.facility-spotlight-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 36px;
  background: linear-gradient(0deg, rgba(7, 21, 41, 0.98) 0%, rgba(7, 21, 41, 0.6) 70%, transparent 100%);
  color: #FFFFFF;
}

.facility-spotlight-content h3 {
  font-size: clamp(20px, 3.5vw, 26px);
  color: #FFFFFF;
  margin-bottom: 10px;
}

.facility-spotlight-content p {
  color: #CBD5E1;
  max-width: 680px;
  font-size: 15px;
  line-height: 1.6;
}

/* ==========================================================================
   RFQ & CONTACT DESK (Enterprise Grade Form)
   ========================================================================== */
.rfq-box {
  background: #FFFFFF;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--primary);
}

.form-input, .form-select, .form-textarea {
  padding: 13px 15px;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  color: var(--text-main);
  background: #FFFFFF;
  transition: var(--transition);
  min-height: 46px;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-alert {
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  background: #ECFDF5;
  border: 1px solid #A7F3D0;
  color: #065F46;
  font-size: 14.5px;
  font-weight: 600;
  display: none;
  margin-top: 20px;
  line-height: 1.5;
}

.security-notice-box {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 18px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background: #030A14;
  color: #94A3B8;
  padding: 72px 0 100px;
  border-top: 1px solid #1E293B;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 52px;
}

.footer-brand p {
  color: #64748B;
  font-size: 14px;
  margin-top: 16px;
  line-height: 1.6;
  max-width: 420px;
}

.footer-col-title {
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 800;
  margin-bottom: 18px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-link {
  color: #94A3B8;
  text-decoration: none;
  font-size: 13.5px;
  transition: var(--transition);
}

.footer-link:hover {
  color: #FFFFFF;
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid #1E293B;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: #64748B;
  flex-wrap: wrap;
  gap: 14px;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(3, 10, 20, 0.75);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-overlay.active {
  display: flex;
}

.modal-box {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  max-width: 680px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 32px;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  background: transparent;
  border: none;
  font-size: 24px;
  color: var(--text-muted);
  cursor: pointer;
}

/* ==========================================================================
   MOBILE & TABLET RESPONSIVENESS
   ========================================================================== */
@media (max-width: 1024px) {
  nav {
    display: none !important;
  }
  .nav-menu {
    display: none !important;
  }
  .mobile-toggle {
    display: flex !important;
  }
  .mobile-drawer {
    display: flex;
  }
  .mobile-drawer.open {
    right: 0;
  }
  .mobile-drawer .lang-switcher {
    width: 100%;
    display: flex;
    gap: 4px;
    background: #F1F5F9;
    padding: 4px;
    border-radius: var(--radius-sm);
  }
  .mobile-drawer .lang-btn {
    flex: 1;
    text-align: center;
    padding: 8px 3px;
    font-size: 11.5px;
    font-weight: 700;
    white-space: nowrap;
  }
  .drawer-overlay.active {
    display: block;
  }
  .portal-grid {
    grid-template-columns: 1fr;
  }
  .standards-grid {
    grid-template-columns: 1fr;
  }
  .corridors-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .system-detail-card {
    display: flex;
    flex-direction: column;
  }
  .system-detail-media {
    width: 100%;
    aspect-ratio: 16 / 9;
    max-height: 400px;
    height: auto;
    min-height: auto;
  }
  .system-detail-body {
    padding: 24px 20px;
  }
  .system-specs-layout {
    grid-template-columns: 1fr;
    gap: 22px;
    padding-top: 16px;
  }
  .hubs-grid {
    grid-template-columns: 1fr;
  }
  .page-hero-metrics {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  .top-bar {
    display: none;
  }
  .header {
    height: 66px;
  }
  .header-inner {
    padding: 0;
  }
  .logo-symbol,
  .logo-symbol-img {
    width: 36px;
    height: 36px;
    font-size: 17px;
  }
  .logo-text-title {
    font-size: 19px;
  }
  .header-actions {
    gap: 8px;
  }
  .header-actions .btn,
  .header-actions .lang-switcher {
    display: none; /* Moved inside mobile drawer for clean phone UX */
  }
  .mobile-toggle {
    display: flex !important;
    width: 42px;
    height: 42px;
    font-size: 24px;
    background: var(--bg-subtle);
    border: 1.5px solid var(--border-color);
  }
  .mobile-bottom-bar {
    display: block;
  }
  .mobile-bottom-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .mobile-bottom-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 8px;
    font-size: 13.5px;
    font-weight: 700;
    border-radius: var(--radius-sm);
    text-decoration: none;
    text-align: center;
  }
  .hero {
    min-height: auto;
    padding: 70px 0 50px;
  }
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .page-hero-metrics {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .corridors-grid {
    grid-template-columns: 1fr;
  }
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  .quick-portal-bar {
    margin-top: 10px;
    margin-bottom: 30px;
  }
  .adv-grid-2x2 {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .system-param-grid {
    grid-template-columns: 1fr;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .rfq-box {
    padding: 24px;
  }
  .system-detail-body {
    padding: 24px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .facility-spotlight-img {
    height: 240px;
  }
  .facility-spotlight-content {
    padding: 20px;
  }
}


/* ==========================================================================
   EXECUTIVE CONTACT HUBS & PREMIER RFQ SPECIFICATION PORTAL
   ========================================================================== */

.contact-hero-section {
  padding: 60px 0 100px;
  background-color: #F8FAFC;
  background-image: 
    radial-gradient(#E2E8F0 1.2px, transparent 1.2px),
    radial-gradient(#E2E8F0 1.2px, #F8FAFC 1.2px);
  background-size: 32px 32px;
  background-position: 0 0, 16px 16px;
}

/* 1. Contact Hubs Top Grid */
.contact-hubs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.contact-hub-card {
  background: #FFFFFF;
  border: 1.5px solid #E2E8F0;
  border-radius: 14px;
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
  overflow: hidden;
  position: relative;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}

.contact-hub-card:hover {
  transform: translateY(-4px);
  border-color: #0284C7;
  box-shadow: 0 12px 30px -5px rgba(2, 132, 199, 0.12), 0 0 0 1px rgba(2, 132, 199, 0.1);
}

.hub-card-stripe {
  height: 4px;
  width: 100%;
}

.stripe-cyan {
  background: linear-gradient(90deg, #0284C7 0%, #38BDF8 100%);
}

.stripe-blue {
  background: linear-gradient(90deg, #1D4ED8 0%, #60A5FA 100%);
}

.stripe-navy {
  background: linear-gradient(90deg, #0F172A 0%, #475569 100%);
}

.hub-card-content {
  padding: 26px 26px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.hub-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.portal-icon-box {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon-cyan {
  background: #E0F2FE;
  color: #0284C7;
  border: 1px solid #BAE6FD;
}

.icon-blue {
  background: #EFF6FF;
  color: #1D4ED8;
  border: 1px solid #BFDBFE;
}

.icon-navy {
  background: #F1F5F9;
  color: #0F172A;
  border: 1px solid #E2E8F0;
}

.hub-status-pill {
  font-size: 11.5px;
  font-weight: 700;
  border-radius: 20px;
  padding: 4px 10px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.pill-cyan {
  background: #F0FDF4;
  border: 1px solid #BBF7D0;
  color: #166534;
}

.pill-blue {
  background: #EFF6FF;
  border: 1px solid #BFDBFE;
  color: #1D4ED8;
}

.pill-navy {
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  color: #334155;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #16A34A;
  box-shadow: 0 0 0 2px rgba(22, 163, 74, 0.25);
  animation: hubPulse 2s infinite;
}

@keyframes hubPulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.5); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(22, 163, 74, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(22, 163, 74, 0); }
}

.geo-beacon {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.contact-hub-title {
  font-size: 16.5px;
  font-weight: 800;
  color: #0F172A;
  margin-bottom: 8px;
}

.contact-hub-val {
  margin-bottom: 8px;
}

.hub-email-link {
  font-size: 16px;
  font-weight: 800;
  color: #0284C7;
  text-decoration: none;
  transition: color 0.15s ease;
}

.hub-email-link:hover {
  color: #0369A1;
  text-decoration: underline;
}

.hub-person-name {
  font-size: 14px;
  font-weight: 700;
  color: #1E293B;
}

.hub-person-addr {
  font-size: 13px;
  color: #64748B;
  margin-top: 2px;
}

.contact-hub-desc {
  font-size: 13px;
  color: #64748B;
  line-height: 1.5;
  margin-bottom: 16px;
  flex: 1;
}

.hub-meta-footer {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11.5px;
  font-weight: 600;
  color: #0284C7;
  padding-top: 12px;
  border-top: 1px dashed #E2E8F0;
}

.hub-liaison-card .hub-meta-footer {
  color: #1D4ED8;
}

.hub-hq-card .hub-meta-footer {
  color: #475569;
}

/* 2. Executive RFQ Specification Portal Container */
.rfq-portal-card {
  background: #FFFFFF;
  border: 1.5px solid #CBD5E1;
  border-radius: 16px;
  box-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.08), 0 0 0 1px rgba(15, 23, 42, 0.03);
  overflow: hidden;
}

.rfq-portal-header {
  background: linear-gradient(135deg, #071529 0%, #0B2240 50%, #0F2E54 100%);
  color: #FFFFFF;
  padding: 34px 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 2px solid rgba(0, 163, 224, 0.4);
  position: relative;
}

.rfq-header-badges {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.rfq-badge {
  font-size: 11.5px;
  font-weight: 700;
  border-radius: 20px;
  padding: 4px 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.b2b-badge {
  background: rgba(14, 165, 233, 0.18);
  border: 1px solid rgba(56, 189, 248, 0.45);
  color: #7DD3FC;
}

.badge-beacon {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #38BDF8;
}

.ssl-badge {
  background: rgba(16, 185, 129, 0.18);
  border: 1px solid rgba(52, 211, 153, 0.45);
  color: #6EE7B7;
}

.rfq-portal-title {
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 900;
  color: #FFFFFF;
  letter-spacing: -0.4px;
  margin-bottom: 6px;
}

.rfq-portal-subtitle {
  font-size: 14.5px;
  color: #94A3B8;
  max-width: 620px;
  line-height: 1.5;
}

.rfq-sla-card {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  backdrop-filter: blur(8px);
  white-space: nowrap;
}

.sla-icon {
  font-size: 20px;
}

.sla-title {
  font-size: 13.5px;
  font-weight: 800;
  color: #38BDF8;
}

.sla-subtitle {
  font-size: 11.5px;
  color: #CBD5E1;
}

/* 3. Form Body & Sections */
.rfq-portal-body {
  padding: 40px;
  background: #FFFFFF;
}

.rfq-form-section {
  margin-bottom: 34px;
  padding-bottom: 30px;
  border-bottom: 1px solid #F1F5F9;
}

.rfq-section-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 20px;
}

.rfq-section-num {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: #0284C7;
  background: #E0F2FE;
  padding: 4px 10px;
  border-radius: 6px;
  white-space: nowrap;
}

.rfq-section-title {
  font-size: 17px;
  font-weight: 800;
  color: #0F172A;
}

.input-with-icon {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.field-icon {
  position: absolute;
  left: 14px;
  color: #94A3B8;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.input-with-icon .form-input {
  padding-left: 42px;
}

.form-group .form-label {
  font-size: 13.5px;
  font-weight: 700;
  color: #1E293B;
  margin-bottom: 6px;
}

.form-input, .custom-rail-select, .high-tech-textarea {
  width: 100%;
  padding: 13px 15px;
  background: #F8FAFC;
  border: 1.5px solid #CBD5E1;
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  color: #0F172A;
  transition: all 0.2s ease;
}

.form-input:focus, .custom-rail-select:focus, .high-tech-textarea:focus {
  background: #FFFFFF;
  border-color: #0284C7;
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
  outline: none;
}

.custom-rail-select {
  font-weight: 600;
  color: #0F172A;
  cursor: pointer;
}

.high-tech-textarea {
  min-height: 110px;
  line-height: 1.6;
}

/* 4. Enterprise File Dropzone */
.file-dropzone-box {
  border: 2px dashed #CBD5E1;
  border-radius: 12px;
  background: #F8FAFC;
  padding: 24px;
  text-align: center;
  margin-top: 18px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.file-dropzone-box:hover {
  border-color: #0284C7;
  background: #F0F9FF;
}

.file-input-native {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  z-index: 5;
}

.dropzone-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  pointer-events: none;
}

.dropzone-icon-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #E0F2FE;
  color: #0284C7;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dropzone-text-group {
  text-align: left;
}

.dropzone-main-label {
  font-size: 14px;
  font-weight: 700;
  color: #0F172A;
  margin-bottom: 2px;
}

.dropzone-sub-label {
  font-size: 12px;
  color: #64748B;
}

.dropzone-trigger-btn {
  pointer-events: none;
  font-size: 13px;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 6px;
  border-color: #CBD5E1;
}

.file-preview-list {
  margin-top: 14px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.file-chip {
  background: #E0F2FE;
  border: 1px solid #BAE6FD;
  color: #0369A1;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* 5. Executive Submit Button */
.rfq-submit-wrapper {
  margin-top: 10px;
  margin-bottom: 24px;
}

.btn-executive-submit {
  width: 100%;
  padding: 18px 32px;
  font-size: 16px;
  font-weight: 800;
  color: #FFFFFF;
  background: linear-gradient(135deg, #0284C7 0%, #0369A1 100%);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  letter-spacing: 0.2px;
}

.btn-executive-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(2, 132, 199, 0.45);
  background: linear-gradient(135deg, #0369A1 0%, #075985 100%);
}

/* 6. Trust Tri-Grid */
.rfq-trust-tri-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid #F1F5F9;
}

.trust-badge-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: 8px;
  padding: 14px 16px;
}

.trust-icon {
  font-size: 18px;
  line-height: 1;
  margin-top: 2px;
}

.trust-text strong {
  display: block;
  font-size: 13px;
  font-weight: 800;
  color: #0F172A;
  margin-bottom: 2px;
}

.trust-text p {
  font-size: 12px;
  color: #64748B;
  line-height: 1.45;
  margin: 0;
}

/* Mobile Responsiveness for Contact Portal */
@media (max-width: 960px) {
  .contact-hubs-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .rfq-portal-header {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
  }
  .rfq-portal-body {
    padding: 24px;
  }
  .rfq-trust-tri-grid {
    grid-template-columns: 1fr;
  }
  .dropzone-inner {
    flex-direction: column;
    text-align: center;
  }
  .dropzone-text-group {
    text-align: center;
  }
}



/* Executive Dark Hub Cards on About Page */
.executive-hub-dark {
  background: #0B192E !important;
  border: 1.5px solid rgba(0, 163, 224, 0.28) !important;
  border-radius: var(--radius-lg) !important;
  overflow: hidden !important;
  padding: 0 !important;
  box-shadow: 0 14px 34px rgba(2, 6, 23, 0.45);
  transition: var(--transition);
}

.executive-hub-dark:hover {
  border-color: var(--accent-cyan) !important;
  box-shadow: 0 20px 48px rgba(0, 163, 224, 0.22);
  transform: translateY(-4px);
}

.hub-inner-dark {
  padding: 32px 32px 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.stripe-cyan-glow {
  height: 4px;
  width: 100%;
  background: linear-gradient(90deg, #0284C7 0%, #38BDF8 50%, #00A3E0 100%);
}

.stripe-navy-glow {
  height: 4px;
  width: 100%;
  background: linear-gradient(90deg, #3B82F6 0%, #60A5FA 50%, #93C5FD 100%);
}

.icon-cyan-glow {
  background: rgba(2, 132, 199, 0.15);
  color: #38BDF8;
  border: 1px solid rgba(56, 189, 248, 0.35);
}

.icon-navy-glow {
  background: rgba(59, 130, 246, 0.15);
  color: #60A5FA;
  border: 1px solid rgba(96, 165, 250, 0.35);
}

.pill-cyan-glow {
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.35);
  color: #4ADE80;
}

.pill-navy-glow {
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.35);
  color: #93C5FD;
}

.hub-role-badge {
  display: inline-block;
  font-size: 13.5px;
  font-weight: 700;
  color: #38BDF8;
  margin-bottom: 14px;
}

.hub-highlights-list {
  list-style: none;
  padding: 0;
  margin: 0 0 24px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hub-highlights-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: #E2E8F0;
  line-height: 1.5;
}

.hub-highlights-list li svg {
  width: 16px;
  height: 16px;
  color: #22C55E;
  flex-shrink: 0;
  margin-top: 2px;
}

.hub-executive-footer {
  margin-top: auto;
  padding: 18px 20px;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-entity-row {
  margin-bottom: 4px;
}

.footer-name {
  font-size: 15.5px;
  font-weight: 800;
  color: #FFFFFF;
}

.footer-sub {
  font-size: 12.5px;
  color: #94A3B8;
  font-weight: 600;
}

.footer-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #CBD5E1;
}

.footer-meta-item svg {
  color: #38BDF8;
  flex-shrink: 0;
}

.footer-meta-item a {
  color: #38BDF8;
  text-decoration: none;
  font-weight: 600;
}

.footer-meta-item a:hover {
  text-decoration: underline;
  color: #7DD3FC;
}