/* ==========================================================================
   INDUSTRIAL CORPORATE PORTAL - CLEAN B2B DESIGN SYSTEM
   DULCE INITIUM — Leybold vacuum equipment
   ========================================================================== */

:root {
  /* Common Corporate Palette */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-heading: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  --color-white: #ffffff;
  --color-bg-light: #f8fafc;
  --color-bg-subtle: #f1f5f9;
  --color-border: #e2e8f0;
  --color-border-dark: #cbd5e1;
  
  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;
  --color-text-light: #94a3b8;
  
  --corp-navy-dark: #0f172a;
  --corp-navy: #1e293b;
  --corp-blue: #0284c7;
  --corp-blue-dark: #0369a1;
  --corp-blue-light: #e0f2fe;
  --corp-orange: #ff7500;
  --corp-orange-hover: #e06700;
  
  /* Navy accent palette (buttons, compliance filters) */
  --qh-navy: #00205B;
  --qh-blue: #0082CA;
  --qh-cyan-light: #DEF0F6;
  --qh-cyan-border: #BAE6FD;
  --qh-accent: #FF7500;
  --qh-text-dark: #0C1E3C;
  
  /* Leybold Brand Identity */
  --ley-red: #E2001A;
  --ley-red-hover: #C40016;
  --ley-red-subtle: #FEF2F2;
  --ley-red-border: #FECACA;
  --ley-dark: #1E293B;
  --ley-gray: #475569;
  --ley-light-bg: #F8FAFC;
  
  /* Global UI Constants */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-card: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-card-hover: 0 12px 24px -4px rgba(15, 23, 42, 0.12);
  
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --container-max: 1280px;
}

/* ==========================================================================
   RESET & BASE TYPOGRAPHY
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--color-white);
  color: var(--color-text-primary);
  font-family: var(--font-primary);
}

body {
  line-height: 1.6;
  background: var(--color-white);
  color: var(--color-text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--corp-blue);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--corp-blue-dark);
}

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

/* ==========================================================================
   LAYOUT CONTAINERS
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

@media (max-width: 768px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
}

/* ==========================================================================
   GLOBAL HEADER & DIVISION SWITCHER (B2B Industrial Nav)
   ========================================================================== */
.global-top-bar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 72px;
}

/* Brand Identity */
.brand-identity {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  cursor: pointer;
  flex-shrink: 0;
}

.brand-logo-img {
  height: 40px;
  width: auto;
  max-width: 240px;
  object-fit: contain;
  display: block;
  transition: transform var(--transition);
}

.brand-identity:hover .brand-logo-img {
  transform: scale(1.02);
}

.brand-logo-badge {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--corp-navy-dark) 0%, var(--corp-blue) 100%);
  color: #ffffff;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: 0 2px 6px rgba(2, 132, 199, 0.25);
  flex-shrink: 0;
}

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

.brand-name {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--corp-navy-dark);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.brand-sub {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* Universal Hub Switcher Nav */
.hub-switcher-nav {
  display: flex;
  align-items: center;
  background: var(--color-bg-subtle);
  padding: 4px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  gap: 4px;
}

.hub-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.hub-tab-btn:hover {
  color: var(--color-text-primary);
  background: rgba(255, 255, 255, 0.7);
}

.hub-tab-btn.active[data-hub="corporate"] {
  background: var(--color-white);
  color: var(--corp-navy-dark);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--color-border);
}

.hub-tab-btn.active[data-hub="leybold"] {
  background: var(--ley-red);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(226, 0, 26, 0.25);
}

/* Top Actions Group */
.top-actions-group {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.search-trigger-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  padding: 7px 12px;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.search-trigger-btn:hover {
  border-color: var(--corp-blue);
  color: var(--color-text-primary);
  background: var(--color-white);
}

.search-shortcut {
  background: var(--color-white);
  border: 1px solid var(--color-border-dark);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

/* Language Switcher */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2px;
  gap: 2px;
}

.lang-btn {
  background: transparent;
  border: none;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.lang-btn:hover {
  color: var(--color-text-primary);
}

.lang-btn.active {
  background: var(--color-white);
  color: var(--color-text-primary);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

/* Sub-Header Navigation & Live Breadcrumbs */
.sub-nav-bar {
  background: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
  padding: 8px 0;
  font-size: 0.8125rem;
}

.sub-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.portal-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--corp-blue);
  font-weight: 600;
}

.portal-breadcrumb i {
  color: var(--color-text-light);
  font-size: 0.75rem;
}

.sub-nav-quick-links {
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--color-text-muted);
}

.sub-nav-quick-links a {
  color: var(--color-text-secondary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.sub-nav-quick-links a:hover {
  color: var(--corp-blue);
}

.sub-nav-quick-links span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

@media (max-width: 1024px) {
  .hub-switcher-nav {
    display: none;
  }
}

/* ==========================================================================
   BUTTONS & UI CONTROLS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-lg {
  padding: 13px 24px;
  font-size: 1rem;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.75rem;
}

.btn-xs {
  padding: 4px 8px;
  font-size: 0.75rem;
}

.btn-corp-primary {
  background: var(--corp-orange);
  color: #ffffff;
  border-color: var(--corp-orange);
}
.btn-corp-primary:hover {
  background: var(--corp-orange-hover);
  border-color: var(--corp-orange-hover);
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

.btn-corp-secondary {
  background: var(--corp-navy-dark);
  color: #ffffff;
}
.btn-corp-secondary:hover {
  background: var(--corp-navy);
  color: #ffffff;
}

.btn-outline {
  background: var(--color-white);
  color: var(--color-text-primary);
  border-color: var(--color-border-dark);
}
.btn-outline:hover {
  background: var(--color-bg-light);
  border-color: var(--color-text-secondary);
}

.btn-qh-primary {
  background: var(--qh-navy);
  color: #ffffff;
  border-color: var(--qh-navy);
}
.btn-qh-primary:hover {
  background: #001740;
  border-color: #001740;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(0, 32, 91, 0.25);
}

.btn-outline-qh {
  background: var(--color-white);
  color: var(--qh-navy);
  border-color: var(--qh-navy);
}
.btn-outline-qh:hover {
  background: var(--qh-cyan-light);
  color: var(--qh-navy);
}

.btn-ley-primary {
  background: var(--ley-red);
  color: #ffffff;
  border-color: var(--ley-red);
}
.btn-ley-primary:hover {
  background: var(--ley-red-hover);
  border-color: var(--ley-red-hover);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(226, 0, 26, 0.25);
}

.btn-outline-ley {
  background: var(--color-white);
  color: var(--ley-red);
  border-color: var(--ley-red);
}
.btn-outline-ley:hover {
  background: var(--ley-red-subtle);
  color: var(--ley-red);
}

/* ==========================================================================
   VIEW 1: CORPORATE HOME / HUB
   ========================================================================== */
.portal-hub-view {
  display: none;
}
.portal-hub-view.active,
.portal-hub-view.active-view {
  display: block;
}

/* Corporate Hero Banner */
.corp-hero-section {
  position: relative;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 60%, #0c4a6e 100%);
  color: #ffffff;
  padding: 70px 0 60px 0;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
}

.hero-badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: #f8fafc;
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
}
.hero-badge-tag i {
  color: var(--corp-orange);
}

.hero-main-title {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.025em;
  color: #ffffff;
  margin-bottom: 20px;
}

.hero-main-title .gradient-text {
  color: #38bdf8;
}

.hero-lead-desc {
  font-size: 1.125rem;
  line-height: 1.6;
  color: #cbd5e1;
  margin-bottom: 32px;
  max-width: 720px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 48px;
}

/* Key Stats Strip */
.corp-stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 32px;
}

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

.stat-val {
  font-size: 2.25rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.8125rem;
  color: #94a3b8;
  font-weight: 500;
  margin-top: 4px;
}

@media (max-width: 768px) {
  .hero-main-title {
    font-size: 2rem;
  }
  .corp-stats-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ==========================================================================
   TWO SPECIALIZED DIVISIONS SHOWCASE SECTION
   ========================================================================== */
.divisions-overview-section {
  padding: 70px 0;
  background: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
}

.section-header-block {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
  color: var(--corp-blue);
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--corp-navy-dark);
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.divisions-showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.division-feature-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-card);
  transition: var(--transition-smooth);
}

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

.card-division-leybold {
  border-top: 4px solid var(--ley-red);
}

.division-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--corp-navy-dark);
  margin-bottom: 12px;
}

.division-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.division-highlights-list {
  list-style: none;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.division-highlights-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--color-text-primary);
  font-weight: 500;
}

.division-highlights-list li i {
  margin-top: 3px;
  font-size: 0.875rem;
}

.text-qh {
  color: var(--qh-navy) !important;
}
.text-ley {
  color: var(--ley-red) !important;
}

@media (max-width: 900px) {
  .divisions-showcase-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   SERVICES & TRUST STRIP (Why Us / Authorized Distributor)
   ========================================================================== */
.corp-services-section {
  padding: 70px 0;
  background: var(--color-white);
}

.services-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  padding: 28px;
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.service-card:hover {
  background: var(--color-white);
  border-color: var(--corp-blue);
  box-shadow: var(--shadow-md);
}

.service-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--corp-blue-light);
  color: var(--corp-blue-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 18px;
}

.service-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--corp-navy-dark);
  margin-bottom: 8px;
}

.service-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
}

@media (max-width: 960px) {
  .services-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .services-grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   SHARED SUB-PORTAL BLOCKS (hero pill, highlights, advisor header)
   ========================================================================== */
.qh-hero-banner {
  background: linear-gradient(135deg, #001740 0%, #00205B 50%, #004B87 100%);
  color: #ffffff;
  padding: 60px 0;
  border-bottom: 3px solid var(--corp-orange);
}

.brand-hero-logo-tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.95);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
  box-shadow: var(--shadow-md);
}

.brand-hero-logo-tag span {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.qh-hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.2;
  color: #ffffff;
  margin-bottom: 16px;
}

.qh-hero-title .highlight {
  color: #38bdf8;
}

.qh-hero-subtitle {
  font-size: 1.0625rem;
  color: #e0f2fe;
  max-width: 780px;
  margin-bottom: 28px;
  line-height: 1.6;
}

/* Interactive Fluid Advisor Wizard Box */
.fluid-advisor-wrapper {
  margin-top: 36px;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

.advisor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 16px;
  margin-bottom: 20px;
}

.advisor-badge {
  background: var(--qh-cyan-light);
  color: var(--qh-navy);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.advisor-inputs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 16px;
  align-items: flex-end;
}

.advisor-result-box {
  margin-top: 20px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  display: none;
}

@media (max-width: 900px) {
  .advisor-inputs-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   VIEW 3: LEYBOLD SUB-PORTAL
   ========================================================================== */
.ley-hero-banner {
  background: linear-gradient(135deg, #18191e 0%, #252830 60%, #3a3f4d 100%);
  color: #ffffff;
  padding: 60px 0;
  border-bottom: 3px solid var(--ley-red);
}

.ley-hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.2;
  color: #ffffff;
  margin-bottom: 16px;
}

.ley-hero-title .highlight {
  color: #fca5a5;
}

.ley-hero-subtitle {
  font-size: 1.0625rem;
  color: #e2e8f0;
  max-width: 780px;
  margin-bottom: 28px;
  line-height: 1.6;
}

/* Vacuum Pressure Range Strip */
.vacuum-range-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.v-range-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 16px;
  backdrop-filter: blur(8px);
}

.v-range-name {
  font-size: 0.8125rem;
  font-weight: 700;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.v-range-pressure {
  font-size: 1.125rem;
  font-weight: 800;
  color: #fca5a5;
  margin: 4px 0;
}

.v-range-tech {
  font-size: 0.75rem;
  color: #cbd5e1;
}

@media (max-width: 800px) {
  .vacuum-range-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Vacuum Calculator Wrapper */
.vacuum-calc-wrapper {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

.calc-dual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.calc-block {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.calc-block h4 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--corp-navy-dark);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.calc-inputs-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 14px;
}

.calc-output-display {
  background: var(--corp-navy-dark);
  color: #ffffff;
  padding: 16px;
  border-radius: var(--radius-md);
  text-align: center;
  margin-top: 14px;
}

.output-val {
  font-size: 1.75rem;
  font-weight: 800;
  color: #38bdf8;
  font-family: monospace;
}

.output-lbl {
  font-size: 0.75rem;
  color: #94a3b8;
  text-transform: uppercase;
  margin-top: 2px;
}

@media (max-width: 800px) {
  .calc-dual-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   PRODUCT CATALOG SECTION (Clean B2B Cards & Grid)
   ========================================================================== */
.catalog-section {
  padding: 60px 0;
  background: var(--color-bg-light);
}

.catalog-header-wrap {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}

.catalog-main-heading {
  font-size: 1.875rem;
  font-weight: 800;
  color: var(--corp-navy-dark);
  letter-spacing: -0.02em;
}

.catalog-sub-heading {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

/* ==========================================================================
   Modern B2B Segmented Category Navigation & Tab Rail
   ========================================================================== */

.category-nav-wrapper {
  position: relative;
  margin-bottom: 32px;
}

.category-pills-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #f8fafc;
  padding: 8px 12px;
  border-radius: 16px;
  border: 1px solid #e2e8f0;
  overflow-x: auto;
  overflow-y: hidden;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
  scrollbar-width: thin;
  scrollbar-color: #cbd5e1 transparent;
  -webkit-overflow-scrolling: touch;
}

.category-pills-bar::-webkit-scrollbar {
  height: 5px;
}

.category-pills-bar::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 9999px;
}

.cat-tab-btn, .filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 18px;
  border-radius: 12px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  color: #334155;
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  user-select: none;
  flex-shrink: 0;
  line-height: 1.3;
}

.cat-tab-btn:hover, .filter-btn:hover {
  background: #ffffff;
  color: #0f172a;
  border-color: #94a3b8;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transform: translateY(-1px);
}

.cat-tab-icon {
  font-size: 0.9375rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #64748b;
  transition: color 0.2s ease;
}

.cat-tab-name {
  letter-spacing: -0.01em;
}

.cat-tab-count {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 9999px;
  background: #f1f5f9;
  color: #64748b;
  line-height: 1.2;
  border: 1px solid #e2e8f0;
  transition: all 0.2s ease;
}

/* Active state, navy accent (document filters) */
.cat-tab-btn.active-filter-qh, .filter-btn.active-filter-qh {
  background: #00205B;
  border-color: #00205B;
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(0, 32, 91, 0.35);
}

.cat-tab-btn.active-filter-qh .cat-tab-icon, .filter-btn.active-filter-qh .cat-tab-icon {
  color: #38bdf8;
}

.cat-tab-btn.active-filter-qh .cat-tab-count, .filter-btn.active-filter-qh .cat-tab-count {
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.3);
}

/* Active State for Leybold */
.cat-tab-btn.active-filter-ley, .filter-btn.active-filter-ley {
  background: #E2001A;
  border-color: #E2001A;
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(226, 0, 26, 0.35);
}

.cat-tab-btn.active-filter-ley .cat-tab-icon, .filter-btn.active-filter-ley .cat-tab-icon {
  color: #fecaca;
}

.cat-tab-btn.active-filter-ley .cat-tab-count, .filter-btn.active-filter-ley .cat-tab-count {
  background: rgba(255, 255, 255, 0.22);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.3);
}


/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 24px;
}

/* Product Card - Clean White B2B Aesthetic */
.product-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: #cbd5e1;
}

/* Product Media & Authentic Photo Box */
.product-media-container {
  position: relative;
  width: 100%;
  height: 200px;
  background: #f8fafc;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  overflow: hidden;
  cursor: pointer;
}

.product-thumbnail {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
}

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

.product-badge-overlay {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 2;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.04em;
}

.badge-qh-official {
  background: #e0f2fe;
  color: #0369a1;
  border: 1px solid #bae6fd;
}

.badge-ley-official {
  background: #fee2e2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

/* Product Card Body */
.product-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-category-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.product-card-title {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--corp-navy-dark);
  line-height: 1.3;
  margin-bottom: 8px;
}

.product-card-desc {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Product Specs Pills */
.product-specs-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
  margin-top: auto;
}

.spec-chip {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.6875rem;
  color: var(--color-text-secondary);
  font-weight: 600;
}

.spec-chip strong {
  color: var(--color-text-primary);
}

/* Product Card Actions */
.product-card-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

/* ==========================================================================
   FORMS, INPUTS & MODALS
   ========================================================================== */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 6px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-dark);
  background: var(--color-white);
  color: var(--color-text-primary);
  font-size: 0.875rem;
  transition: var(--transition);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--corp-blue);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

/* Modal Backdrop & Container */
.modal-backdrop,
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-backdrop.active,
.modal-overlay.active,
.modal-overlay.active-modal {
  display: flex;
}

.modal-container,
.modal-dialog {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  max-width: 680px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border);
  position: relative;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border);
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--corp-navy-dark);
}

.modal-close-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  font-size: 1rem;
  color: var(--color-text-muted);
  cursor: pointer;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  transition: var(--transition);
  z-index: 10;
}
.modal-close-btn:hover {
  color: var(--color-text-primary);
  background: #ffffff;
  border-color: #cbd5e1;
}

.modal-body {
  padding: 28px;
}


/* ==========================================================================
   CLEAN, BALANCED B2B PORTAL FOOTER
   ========================================================================== */
.portal-footer {
  background: #0B1323;
  color: #94A3B8;
  padding: 68px 0 28px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 2.2fr 1.2fr 1.4fr 1.4fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-col-brand .footer-lead-text {
  font-size: 0.875rem;
  line-height: 1.65;
  color: #94A3B8;
  margin-bottom: 18px;
}

.footer-legal-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 6px 14px;
  border-radius: var(--radius-md);
  font-size: 0.775rem;
  color: #cbd5e1;
}
.footer-legal-tag i {
  color: #ea580c;
}

.footer-title {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 800;
  color: #FFFFFF;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.footer-links-list,
.footer-contacts-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 0;
  margin: 0;
}

.footer-links-list a {
  color: #cbd5e1;
  font-size: 0.875rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color var(--transition), transform var(--transition);
}
.footer-links-list a:hover {
  color: #38bdf8;
  transform: translateX(3px);
}
.footer-links-list a i {
  font-size: 0.75rem;
  color: #64748b;
}

.footer-contacts-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: #cbd5e1;
  line-height: 1.5;
}
.footer-contacts-list li i {
  color: #ea580c;
  margin-top: 3px;
  flex-shrink: 0;
}
.footer-contacts-list a {
  color: #cbd5e1;
  text-decoration: none;
  transition: color var(--transition);
}
.footer-contacts-list a:hover {
  color: #38bdf8;
}

.footer-bottom-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: #64748B;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-cities-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #475569;
}
.city-pill {
  color: #94A3B8;
  font-weight: 600;
  transition: color var(--transition);
}
.city-pill:hover {
  color: #38bdf8;
}

@media (max-width: 1024px) {
  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}
@media (max-width: 640px) {
  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom-bar {
    flex-direction: column;
    text-align: center;
  }
}


/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: var(--corp-navy-dark);
  color: #ffffff;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideInUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  border-left: 4px solid var(--corp-orange);
}

.toast.toast-success {
  border-left-color: #10b981;
}
.toast.toast-info {
  border-left-color: #0284c7;
}
.toast.toast-error {
  border-left-color: #ef4444;
}

@keyframes slideInUp {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}


/* ==========================================================================
   Compliance Documents & Engineering Questionnaires
   ========================================================================== */

.doc-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
  position: relative;
}

.doc-card:hover {
  transform: translateY(-3px);
  border-color: #cbd5e1;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.07);
}

.doc-card-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 12px;
}

.doc-icon-badge {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.doc-badge-pill {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  border-radius: 6px;
  margin-bottom: 6px;
  display: inline-block;
}

.doc-title {
  font-size: 1rem;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.4;
  margin-bottom: 6px;
}

.doc-desc {
  font-size: 0.8125rem;
  color: #64748b;
  line-height: 1.5;
  margin-bottom: 16px;
  flex-grow: 1;
}

.doc-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid #f1f5f9;
  font-size: 0.75rem;
  color: #94a3b8;
}

.doc-meta-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}

.doc-actions-row {
  display: flex;
  gap: 8px;
}


/* ==========================================================================
   Section-by-Section Snap Scrolling & Side Navigation Rail
   ========================================================================== */

html {
  scroll-behavior: smooth;
  /* scroll-snap removed: it pulled the page down on load and hid the contact strip under the sticky header */
}

/* Snap targets */
.corp-hero-section,
.corp-divisions-section,
.corp-solutions-section,
.corp-cases-section,
.compliance-section,
.corp-partners-section,
.corp-contacts-section,
.qh-hero-banner,
.fluid-advisor-section,
.catalog-section,
.fluidcare-section,
.ley-hero-banner,
#vacuumCalculatorSection,
.ley-service-section,
.portal-footer {
  scroll-margin-top: 84px;
}
@media (max-width: 1024px) {
  #corp-hero, #divisionsShowcase, #solutionsSection, #complianceSection, #partnersSection, #contactsSection,
  #leyboldHero, #leyboldCatalogSection, #vacuumCalculatorSection, .ley-service-section, .portal-footer { scroll-margin-top: 128px; }
}

/* Floating Vertical Section Navigation Rail */
.section-nav-rail {
  position: fixed;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 9999;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 8px 6px;
  border-radius: 9999px;
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: auto;
}

.section-nav-btn {
  position: relative;
  width: 32px;
  height: 32px;
  padding: 0;
  margin: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  outline: none;
  transition: all 0.2s ease;
}

.section-nav-btn .nav-dot-core {
  width: 10px;
  height: 10px;
  border-radius: 9999px;
  background: #94a3b8;
  border: 2px solid #ffffff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.section-nav-btn:hover .nav-dot-core {
  background: #475569;
  transform: scale(1.3);
}

.section-nav-btn.active .nav-dot-core {
  width: 12px;
  height: 12px;
  background: var(--corp-orange);
  transform: scale(1.3);
  box-shadow: 0 0 12px rgba(255, 117, 0, 0.6);
}

body.theme-leybold .section-nav-btn.active .nav-dot-core {
  background: #E2001A;
  box-shadow: 0 0 12px rgba(226, 0, 26, 0.6);
}

/* Tooltip on Hover */
.section-nav-btn .dot-tooltip {
  position: absolute;
  right: 38px;
  top: 50%;
  transform: translateY(-50%) translateX(8px);
  background: #0f172a;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 6px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
  z-index: 10000;
}

.section-nav-btn .dot-tooltip::after {
  content: '';
  position: absolute;
  right: -5px;
  top: 50%;
  transform: translateY(-50%);
  border-left: 5px solid #0f172a;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

.section-nav-btn:hover .dot-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(0);
}

/* Hero Scroll Down Prompt */
.hero-scroll-cue {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #ffffff;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
  user-select: none;
  margin-top: 28px;
}

.hero-scroll-cue:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(2px);
}

.mouse-icon {
  width: 14px;
  height: 22px;
  border: 2px solid currentColor;
  border-radius: 10px;
  position: relative;
}

.mouse-wheel {
  width: 2px;
  height: 5px;
  background: currentColor;
  border-radius: 2px;
  position: absolute;
  top: 3px;
  left: 50%;
  transform: translateX(-50%);
  animation: mouseWheelSlide 1.5s infinite;
}

@keyframes mouseWheelSlide {
  0% { transform: translate(-50%, 0); opacity: 1; }
  100% { transform: translate(-50%, 8px); opacity: 0; }
}

@media (max-width: 900px) {
  .section-nav-rail {
    display: none;
  }
}