/**
 * Haalyn Technologies FZE — Luxury Hospitality Showcase Main Stylesheet
 * Milestone: M1 Architecture
 * File: assets/css/main.css
 * 
 * Invariants:
 * - Sales Manager: Thasni Majeed (sales@haalyn.com, +971 52 188 4327)
 * - Corporate: SRTIPark, Sharjah, United Arab Emirates
 * - Zero external CDN dependencies
 * - Hard zero-horizontal-overflow constraint: max-width: 100vw; overflow-x: hidden;
 */

/* ==========================================================================
   1. RESET & ZERO-OVERFLOW BASELINE
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-canvas-white);
  color: var(--color-text-body);
  line-height: var(--leading-normal);
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  position: relative;
}

/* Media containment */
img, svg, picture, video {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Text wrap defense */
h1, h2, h3, h4, h5, h6, p, span, a, label, li {
  overflow-wrap: break-word;
  word-wrap: break-word;
}

/* Grid and flex child containment */
.grid > *, .flex > *, [class*="-grid"] > * {
  min-width: 0;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  -webkit-tap-highlight-color: transparent;
}

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

ul, ol {
  list-style: none;
}

table {
  border-collapse: collapse;
  width: 100%;
}

/* ==========================================================================
   2. CONTAINER ARCHITECTURE & SECTION LAYOUTS
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max-desktop);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad-desktop);
  padding-right: var(--container-pad-desktop);
}

.container-hero {
  width: 100%;
  max-width: var(--container-max-hero);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad-desktop);
  padding-right: var(--container-pad-desktop);
}

.section {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
  position: relative;
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
}

.section-alt {
  background-color: var(--color-canvas-offwhite);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.section-dark {
  background-color: var(--color-navy-900);
  color: var(--color-text-primary-light);
}

.section-header {
  max-width: 840px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-12);
  text-align: center;
}

.section-header.text-left {
  text-align: left;
  margin-left: 0;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xxs);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  color: var(--color-emerald-600);
  margin-bottom: var(--space-3);
}

.section-eyebrow-gold {
  color: var(--color-gold-metallic);
}

.section-title {
  font-size: var(--text-h2);
  font-weight: var(--font-bold);
  color: var(--color-text-primary-dark);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-4);
}

.section-dark .section-title {
  color: var(--color-text-primary-light);
}

.section-subtitle {
  font-size: var(--text-body-lg);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

.section-dark .section-subtitle {
  color: var(--color-text-muted-light);
}

/* ==========================================================================
   3. SITE HEADER & NAVIGATION
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background-color: var(--color-glass-header-light);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-normal);
  width: 100%;
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  gap: var(--space-5);
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  text-decoration: none;
}

.brand-logo {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.brand-divider {
  width: 1px;
  height: 32px;
  background-color: var(--color-border-light);
}

.brand-credentials {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: var(--color-text-primary-dark);
  line-height: 1.2;
}

.brand-tagline {
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-text-muted);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-secondary-dark);
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-emerald-600);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.mobile-menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary-dark);
  border-radius: var(--radius-sm);
  background-color: var(--color-canvas-subtle);
}

/* ==========================================================================
   4. HERO SECTION
   ========================================================================== */

.hero-section {
  position: relative;
  background: radial-gradient(circle at 80% 20%, #172554 0%, var(--color-navy-900) 65%, var(--color-navy-950) 100%);
  color: var(--color-text-primary-light);
  padding-top: var(--space-16);
  padding-bottom: var(--space-20);
  overflow: hidden;
}

.hero-section::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.4), transparent);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-12);
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  z-index: var(--z-raised);
}

.hero-headline {
  font-size: var(--text-hero);
  font-weight: var(--font-extrabold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tighter);
  color: #FFFFFF;
  margin-bottom: var(--space-5);
}

.hero-headline .text-accent-gold {
  color: var(--color-gold-metallic);
  background: linear-gradient(135deg, #F9DF7B 0%, #D4AF37 50%, #AA7A1E 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: var(--text-body-lg);
  color: var(--color-text-muted-light);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
  max-width: 620px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
  flex-wrap: wrap;
}

.hero-trust-bar {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  flex-wrap: wrap;
}

.hero-trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-secondary-light);
}

.hero-trust-icon {
  color: var(--color-emerald-400);
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual-backdrop {
  position: absolute;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.18) 0%, rgba(16, 185, 129, 0.08) 45%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}

.hero-visual img {
  position: relative;
  z-index: 2;
  max-height: 480px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.55));
  transition: transform var(--transition-slow);
}

.hero-visual:hover img {
  transform: translateY(-8px) scale(1.02);
}

.hero-ribbon-wrap {
  margin-top: var(--space-12);
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-ribbon-img {
  max-height: 120px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.4));
}

/* ==========================================================================
   5. CATEGORY CARDS GRID
   ========================================================================== */

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.category-card {
  background-color: var(--color-canvas-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  text-decoration: none;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-champagne-brand);
}

.category-media {
  position: relative;
  height: 200px;
  background: radial-gradient(circle at 50% 50%, #F8FAFC 0%, #EDF2F7 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
}

.category-media img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  transition: transform var(--transition-normal);
  filter: drop-shadow(0 8px 12px rgba(15, 23, 42, 0.12));
}

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

.category-body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.category-card-title {
  font-size: var(--text-h4);
  font-weight: var(--font-bold);
  color: var(--color-text-primary-dark);
  margin-bottom: var(--space-2);
}

.category-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-normal);
  margin-bottom: var(--space-4);
  flex-grow: 1;
}

.category-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-canvas-subtle);
}

.category-link-text {
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-emerald-600);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* ==========================================================================
   6. FLAGSHIP PRODUCT CARDS
   ========================================================================== */

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.product-card {
  background-color: var(--color-canvas-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(212, 175, 55, 0.4);
}

.product-media {
  position: relative;
  height: 240px;
  background: radial-gradient(circle at 50% 50%, #FFFFFF 0%, #F1F5F9 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-border-light);
}

.product-media img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  transition: transform var(--transition-normal);
  filter: drop-shadow(0 10px 16px rgba(15, 23, 42, 0.15));
}

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

.product-card-badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 3;
}

.product-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-series {
  font-size: var(--text-xxs);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  color: var(--color-gold-dark);
  margin-bottom: var(--space-1);
}

.product-title {
  font-size: var(--text-h3);
  font-weight: var(--font-bold);
  color: var(--color-text-primary-dark);
  margin-bottom: var(--space-2);
  line-height: var(--leading-snug);
}

.product-desc {
  font-size: var(--text-sm);
  color: var(--color-text-body);
  line-height: var(--leading-normal);
  margin-bottom: var(--space-5);
}

.product-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.product-spec-list {
  list-style: none;
  margin-bottom: var(--space-6);
  border-top: 1px solid var(--color-border-light);
  padding-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.product-spec-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-xs);
  line-height: 1.4;
}

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

.spec-value {
  color: var(--color-text-primary-dark);
  font-weight: var(--font-bold);
  font-family: var(--font-mono);
  text-align: right;
}

.product-footer {
  padding: var(--space-4) var(--space-6) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: auto;
  border-top: 1px solid var(--color-border-light);
}

.product-btn-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.product-datasheet-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-text-muted);
  text-align: center;
  padding: var(--space-2) 0;
  transition: color var(--transition-fast);
}

.product-datasheet-link:hover {
  color: var(--color-emerald-600);
}

/* ==========================================================================
   7. SPEC PILLS & BADGE SYSTEM
   ========================================================================== */

.spec-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 3px 8px;
  font-size: var(--text-xxs);
  font-weight: var(--font-bold);
  border-radius: var(--radius-sm);
  background-color: var(--color-canvas-subtle);
  color: var(--color-text-secondary-dark);
  border: 1px solid var(--color-border-light);
  white-space: nowrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 4px 10px;
  font-size: var(--text-xxs);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  border-radius: var(--radius-full);
}

.badge-gold {
  background-color: var(--color-gold-soft);
  color: var(--color-gold-dark);
  border: 1px solid var(--color-gold-border);
}

.badge-emerald {
  background-color: var(--color-emerald-soft);
  color: var(--color-emerald-600);
  border: 1px solid var(--color-emerald-border);
}

.badge-champagne {
  background-color: var(--color-champagne-soft);
  color: #786450;
  border: 1px solid var(--color-champagne-border);
}

.badge-dark {
  background-color: rgba(255, 255, 255, 0.12);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.20);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background-color: var(--color-emerald-soft);
  color: var(--color-emerald-600);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  border: 1px solid var(--color-emerald-border);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-emerald-500);
  position: relative;
}

.status-dot.pulse::after {
  content: "";
  position: absolute;
  top: -3px;
  left: -3px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--color-emerald-500);
  opacity: 0.6;
  animation: statusPulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes statusPulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(2.2); opacity: 0; }
}

/* ==========================================================================
   8. BUTTONS HIERARCHY (MIN 44PX TOUCH TARGET)
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 22px;
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  line-height: 1.2;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  min-height: 44px;
}

.btn:active {
  transform: translateY(1px);
}

.btn-whatsapp {
  background-color: var(--color-whatsapp);
  color: #FFFFFF;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.btn-whatsapp:hover {
  background-color: var(--color-whatsapp-hover);
  color: #FFFFFF;
  box-shadow: var(--shadow-whatsapp-glow);
  transform: translateY(-2px);
}

.btn-gold {
  background: linear-gradient(135deg, #E6C86E 0%, var(--color-gold-metallic) 50%, #B8860B 100%);
  color: var(--color-navy-950);
  box-shadow: 0 4px 14px rgba(212, 175, 55, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-gold:hover {
  box-shadow: 0 6px 20px rgba(212, 175, 55, 0.50);
  transform: translateY(-2px);
}

.btn-primary {
  background-color: var(--color-navy-900);
  color: #FFFFFF;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-navy-800);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
  border-color: var(--color-text-primary-dark);
  background-color: var(--color-canvas-subtle);
}

.btn-outline-light {
  background-color: transparent;
  color: #FFFFFF;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-light:hover {
  border-color: #FFFFFF;
  background-color: rgba(255, 255, 255, 0.1);
}

.btn-outline-gold {
  background-color: transparent;
  color: #D4AF37;
  border: 1.5px solid #D4AF37;
  transition: all var(--transition-fast);
}

.btn-outline-gold:hover {
  background-color: rgba(212, 175, 55, 0.15);
  border-color: #F3E5AB;
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(212, 175, 55, 0.25);
}

.btn-sm {
  padding: 8px 14px;
  font-size: var(--text-xs);
  min-height: 38px;
}

.btn-lg {
  padding: 16px 30px;
  font-size: var(--text-body);
  min-height: 52px;
  border-radius: var(--radius-lg);
}

.btn-full {
  width: 100%;
}

/* ==========================================================================
   9. AI PERSONAS SECTION
   ========================================================================== */

.ai-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.ai-card {
  background-color: var(--color-navy-800);
  border: 1px solid var(--color-navy-600);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.ai-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-emerald-400);
}

.ai-media {
  position: relative;
  height: 280px;
  overflow: hidden;
  background-color: var(--color-navy-950);
}

.ai-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform var(--transition-slow);
}

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

.ai-badge {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  z-index: 2;
}

.ai-body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.ai-role {
  font-size: var(--text-xxs);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  color: var(--color-emerald-400);
  margin-bottom: var(--space-1);
}

.ai-name {
  font-size: var(--text-h3);
  font-weight: var(--font-bold);
  color: #FFFFFF;
  margin-bottom: var(--space-2);
}

.ai-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted-light);
  line-height: var(--leading-normal);
  margin-bottom: var(--space-4);
  flex-grow: 1;
}

.ai-skills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.ai-skill-tag {
  font-size: var(--text-xxs);
  padding: 2px 8px;
  background-color: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xs);
  color: var(--color-text-secondary-light);
}

/* ==========================================================================
   10. DCS TELEPHONY MESH & ARCHITECTURE
   ========================================================================== */

.mesh-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: center;
}

.mesh-card-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.mesh-card {
  padding: var(--space-6);
  background-color: var(--color-canvas-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.mesh-card:hover {
  border-color: var(--color-gold-metallic);
  box-shadow: var(--shadow-card);
}

.mesh-card-title {
  font-size: var(--text-h4);
  font-weight: var(--font-bold);
  color: var(--color-text-primary-dark);
  margin-bottom: var(--space-2);
}

.mesh-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-body);
  line-height: var(--leading-normal);
}

.mesh-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.mesh-metric {
  text-align: center;
  padding: var(--space-4);
  background-color: var(--color-canvas-subtle);
  border-radius: var(--radius-md);
}

.mesh-metric-val {
  font-size: var(--text-h3);
  font-weight: var(--font-extrabold);
  color: var(--color-emerald-600);
  font-family: var(--font-mono);
}

.mesh-metric-label {
  font-size: var(--text-xxs);
  font-weight: var(--font-bold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  margin-top: var(--space-1);
}

/* ==========================================================================
   11. UAE MASTER PARTNER PILLARS
   ========================================================================== */

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.pillar-card {
  background-color: var(--color-canvas-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.pillar-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: var(--color-emerald-500);
}

.pillar-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: var(--color-emerald-soft);
  color: var(--color-emerald-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.pillar-title {
  font-size: var(--text-h4);
  font-weight: var(--font-bold);
  color: var(--color-text-primary-dark);
}

.pillar-desc {
  font-size: var(--text-sm);
  color: var(--color-text-body);
  line-height: var(--leading-normal);
}

/* ==========================================================================
   12. ACCESSIBLE RFQ MODAL
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-glass-scrim);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: var(--z-modal-backdrop);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.modal-backdrop.is-open {
  display: flex;
  opacity: 1;
}

.modal-dialog {
  background-color: var(--color-canvas-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-modal);
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  position: relative;
  border: 1px solid var(--color-border-light);
  transform: scale(0.96) translateY(12px);
  transition: transform var(--transition-normal);
}

.modal-backdrop.is-open .modal-dialog {
  transform: scale(1) translateY(0);
}

.modal-header {
  padding: var(--space-6) var(--space-8);
  border-bottom: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--color-canvas-offwhite);
}

.modal-title {
  font-size: var(--text-h3);
  font-weight: var(--font-bold);
  color: var(--color-text-primary-dark);
}

.modal-close {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-canvas-subtle);
  color: var(--color-text-muted);
  font-size: 1.25rem;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background-color: var(--color-border-light);
  color: var(--color-text-primary-dark);
}

.modal-body {
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-primary-dark);
}

.form-control {
  width: 100%;
  height: 48px;
  padding: 0 var(--space-4);
  font-size: var(--text-sm);
  font-family: inherit;
  color: var(--color-text-primary-dark);
  background-color: var(--color-canvas-white);
  border: 1.5px solid var(--color-border-light);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

textarea.form-control {
  height: auto;
  min-height: 90px;
  padding: var(--space-3) var(--space-4);
  resize: vertical;
}

.form-control:focus {
  border-color: var(--color-gold-metallic);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.20);
}

.form-control.is-invalid {
  border-color: var(--color-status-error);
  background-color: var(--color-status-error-soft);
}

.form-error-msg {
  font-size: var(--text-xs);
  color: var(--color-status-error);
  display: none;
}

.form-control.is-invalid + .form-error-msg {
  display: block;
}

.modal-btn-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.modal-success-state {
  display: none;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-8) var(--space-6);
}

.success-icon-wrap {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background-color: var(--color-emerald-soft);
  color: var(--color-emerald-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: var(--space-5);
  border: 2px solid var(--color-emerald-border);
}

.success-title {
  font-size: var(--text-h3);
  font-weight: var(--font-bold);
  color: var(--color-text-primary-dark);
  margin-bottom: var(--space-2);
}

.success-desc {
  font-size: var(--text-sm);
  color: var(--color-text-body);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
  max-width: 420px;
}

/* ==========================================================================
   13. INVARIANT-COMPLIANT FOOTER
   ========================================================================== */

.site-footer {
  background-color: var(--color-navy-950);
  color: var(--color-text-muted-light);
  border-top: 1px solid var(--color-navy-700);
  padding-top: var(--space-16);
  padding-bottom: var(--space-12);
  width: 100%;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-brand-logo {
  height: 38px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.footer-tagline {
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: var(--color-text-muted-light);
}

.footer-seal {
  height: 70px;
  width: auto;
  object-fit: contain;
  margin-top: var(--space-2);
  opacity: 0.85;
}

.footer-heading {
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  color: #FFFFFF;
  margin-bottom: var(--space-4);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-link {
  font-size: var(--text-sm);
  color: var(--color-text-muted-light);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-emerald-400);
}

.footer-contact-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
}

.footer-contact-label {
  font-size: var(--text-xxs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-gold-metallic);
  font-weight: var(--font-bold);
}

.footer-contact-val {
  color: #FFFFFF;
  font-weight: var(--font-medium);
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-navy-700);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* ==========================================================================
   14. MOBILE BOTTOM STICKY CONVERSION BAR
   ========================================================================== */

.mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-glass-header-light);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sticky-bar);
  padding: var(--space-3) var(--space-4);
  padding-bottom: calc(var(--space-3) + env(safe-area-inset-bottom, 0px));
  z-index: var(--z-sticky-mobile);
}

.mobile-sticky-bar-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  max-width: 480px;
  margin: 0 auto;
}

/* ==========================================================================
   15. RESPONSIVE BREAKPOINTS (ZERO-OVERFLOW AUDITED)
   ========================================================================== */

@media (max-width: 1024px) {
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .ai-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 992px) {
  .site-header-inner {
    height: 68px;
  }
  
  .brand-divider, .brand-credentials {
    display: none;
  }
  
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    text-align: center;
  }
  
  .hero-lead {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-cta-group, .hero-trust-bar {
    justify-content: center;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .hero-visual img {
    max-height: 320px;
  }
  
  .mesh-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 768px) {
  .container, .container-hero {
    padding-left: var(--container-pad-mobile);
    padding-right: var(--container-pad-mobile);
  }
  
  .section {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
  }
  
  .section-header {
    margin-bottom: var(--space-8);
  }
  
  .mobile-sticky-bar {
    display: block;
  }
  
  body {
    padding-bottom: 76px;
  }
}

@media (max-width: 640px) {
  .category-grid {
    grid-template-columns: 1fr;
  }
  
  .product-grid {
    grid-template-columns: 1fr;
  }
  
  .product-btn-group {
    grid-template-columns: 1fr;
  }
  
  .ai-grid {
    grid-template-columns: 1fr;
  }
  
  .pillars-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .modal-dialog {
    max-width: 100%;
    border-radius: var(--radius-lg);
  }
  
  .modal-header, .modal-body {
    padding: var(--space-5);
  }
  
  .modal-btn-group {
    grid-template-columns: 1fr;
  }
  
  .hero-trust-bar {
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
  }
  
  .header-actions .btn-whatsapp {
    display: none;
  }
}

/* ==========================================================================
   10. ELV & ICT SYSTEMS INTEGRATOR & TENDER BOQ EXTENSIONS
   ========================================================================== */

.section-eyebrow-cyan {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(0, 210, 255, 0.08);
  border: 1px solid rgba(0, 210, 255, 0.25);
  color: var(--color-cyan-400);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.text-accent-cyan {
  color: var(--color-cyan-400);
  background: linear-gradient(135deg, #00D2FF 0%, #38BDF8 50%, #FFFFFF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.btn-outline-cyan {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  background: rgba(0, 210, 255, 0.06);
  color: var(--color-cyan-400);
  border: 1px solid rgba(0, 210, 255, 0.35);
  padding: 9px 16px;
  font-size: 13px;
  font-weight: var(--font-medium);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-decoration: none;
  cursor: pointer;
}

.btn-outline-cyan:hover {
  background: rgba(0, 210, 255, 0.16);
  border-color: var(--color-cyan-400);
  color: #FFFFFF;
  box-shadow: 0 0 16px rgba(0, 210, 255, 0.35);
}

.badge-cyan {
  background: rgba(0, 210, 255, 0.15);
  color: #00D2FF;
  border: 1px solid rgba(0, 210, 255, 0.35);
}

/* ELV Interactive Filter Tabs */
.elv-filter-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
  margin-bottom: var(--space-10);
}

.elv-filter-btn {
  padding: 8px 16px;
  border-radius: var(--radius-full);
  background: var(--color-canvas-subtle);
  border: 1px solid var(--color-border-light);
  color: var(--color-text-secondary-dark);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.elv-filter-btn:hover {
  background: var(--color-canvas-white);
  border-color: var(--color-cyan-500);
  color: var(--color-navy-900);
}

.elv-filter-btn.is-active {
  background: var(--color-navy-900);
  border-color: var(--color-cyan-500);
  color: #00D2FF;
  box-shadow: 0 2px 10px rgba(0, 210, 255, 0.2);
}

/* 10 ELV Systems Grid */
.elv-systems-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.elv-card {
  background: var(--color-canvas-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-fast);
}

.elv-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(0, 210, 255, 0.4);
}

.elv-card-media {
  position: relative;
  width: 100%;
  height: 250px;
  overflow: hidden;
  background: var(--color-navy-950);
}

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

.elv-card:hover .elv-card-img {
  transform: scale(1.04);
}

.elv-card-badge {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  z-index: 2;
  font-size: var(--text-xxs);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  backdrop-filter: blur(8px);
}

.elv-card-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.elv-system-number {
  font-size: var(--text-xxs);
  font-weight: var(--font-bold);
  letter-spacing: var(--tracking-widest);
  color: var(--color-cyan-600);
  margin-bottom: var(--space-1);
}

.elv-card-title {
  font-size: var(--text-h3);
  font-weight: var(--font-bold);
  color: var(--color-navy-900);
  margin-bottom: var(--space-3);
  line-height: var(--leading-snug);
}

.elv-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-body);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.elv-spec-list {
  list-style: none;
  margin-bottom: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-secondary-dark);
  border-top: 1px solid var(--color-border-light);
  padding-top: var(--space-3);
}

.elv-spec-list li {
  position: relative;
  padding-left: var(--space-4);
  line-height: 1.45;
}

.elv-spec-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--color-cyan-600);
}

.elv-brands-wrap {
  margin-top: auto;
  margin-bottom: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px dashed var(--color-border-light);
}

.elv-brands-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-cyan-700);
  margin-bottom: 8px;
}

.elv-brands-label svg {
  color: var(--color-gold-600);
  flex-shrink: 0;
}

.elv-brand-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.brand-chip {
  font-size: 11.5px;
  font-weight: 600;
  background: #ffffff;
  color: var(--color-text-primary-dark);
  padding: 3px 10px;
  border-radius: 4px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  line-height: 1.3;
}

.brand-chip:hover {
  border-color: var(--color-cyan-600);
  color: var(--color-cyan-700);
  background: #f0fdff;
}

.brand-chip-flagship {
  background: linear-gradient(135deg, #fffbeb 0%, #ffffff 100%);
  border-color: #f59e0b;
  color: #92400e;
  font-weight: 700;
}

.elv-card-actions {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  flex-wrap: wrap;
  border-top: 1px solid var(--color-border-light);
  padding-top: var(--space-4);
}

/* Sector Verticals */
.sectors-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.sector-card {
  background: var(--color-canvas-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.sector-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
  border-color: rgba(212, 175, 55, 0.4);
}

.sector-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.sector-icon {
  font-size: 2rem;
  line-height: 1;
}

.sector-eyebrow {
  font-size: 10px;
  font-weight: var(--font-bold);
  letter-spacing: var(--tracking-widest);
  color: var(--color-gold-dark);
  display: block;
}

.sector-title {
  font-size: var(--text-h4);
  color: var(--color-navy-900);
  margin: 0;
}

.sector-desc {
  font-size: var(--text-sm);
  color: var(--color-text-body);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.sector-systems-pillbox {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--space-5);
  margin-top: auto;
}

.pill-chip {
  font-size: 11px;
  background: var(--color-gold-soft);
  color: var(--color-navy-900);
  border: 1px solid var(--color-gold-border);
  padding: 3px 9px;
  border-radius: var(--radius-full);
  font-weight: var(--font-medium);
}

.sector-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--color-border-light);
  padding-top: var(--space-3);
}

.sector-stat {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.sector-stat strong {
  color: var(--color-navy-900);
  font-size: var(--text-sm);
}

/* Tender BOQ Component */
.section-tender-boq {
  background: linear-gradient(135deg, #060B18 0%, #0B132B 50%, #0F172A 100%);
  color: #FFFFFF;
  border-top: 1px solid rgba(0, 210, 255, 0.2);
  border-bottom: 1px solid rgba(0, 210, 255, 0.2);
}

.tender-boq-card {
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(0, 210, 255, 0.3);
  border-radius: var(--radius-2xl);
  padding: var(--space-10);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 210, 255, 0.15);
}

.tender-boq-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-10);
  align-items: center;
}

.tender-boq-title {
  font-size: var(--text-h2);
  color: #FFFFFF;
  line-height: var(--leading-tight);
  margin-bottom: var(--space-4);
}

.tender-boq-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary-light);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

.tender-benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.tender-benefit-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: #E2E8F0;
}

.benefit-check {
  color: var(--color-cyan-400);
  font-weight: bold;
  font-size: 1.1rem;
  line-height: 1.2;
}

.tender-action-group {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  align-items: center;
}

.tender-boq-compliance {
  background: rgba(11, 19, 43, 0.85);
  border: 1px solid rgba(212, 175, 55, 0.35);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
}

.compliance-heading {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-gold-metallic);
  margin-bottom: var(--space-4);
  border-bottom: 1px solid rgba(212, 175, 55, 0.2);
  padding-bottom: var(--space-2);
}

.compliance-badges-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.compliance-badge-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.compliance-badge-icon {
  font-size: 1.25rem;
}

.compliance-badge-text strong {
  display: block;
  font-size: var(--text-xs);
  color: #FFFFFF;
}

.compliance-badge-text span {
  display: block;
  font-size: 11px;
  color: var(--color-text-muted-light);
}

.commercial-rep-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-4);
}

.rep-avatar-wrap {
  background: rgba(255, 255, 255, 0.05);
  padding: 6px;
  border-radius: var(--radius-sm);
}

.rep-sig-img {
  filter: brightness(0) invert(1);
  display: block;
  max-width: 90px;
  height: auto;
}

.rep-name {
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  color: #FFFFFF;
}

.rep-title {
  font-size: 11px;
  color: var(--color-cyan-400);
}

.rep-contact {
  font-size: 11px;
  color: var(--color-text-muted-light);
  margin-top: 2px;
}

.rep-contact a {
  color: var(--color-cyan-400);
}

/* Modal Extensions */
.modal-dialog-lg {
  max-width: 680px;
}

.form-row {
  display: flex;
  gap: var(--space-4);
}

.col-half {
  flex: 1;
  min-width: 0;
}

.rfq-checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 12px;
  background: var(--color-canvas-subtle);
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-light);
}

.rfq-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--text-xs);
  color: var(--color-text-secondary-dark);
  cursor: pointer;
  user-select: none;
}

.rfq-checkbox {
  accent-color: var(--color-cyan-600);
  width: 15px;
  height: 15px;
}

@media (max-width: 991px) {
  .elv-systems-grid {
    grid-template-columns: 1fr;
  }
  
  .sectors-grid {
    grid-template-columns: 1fr;
  }
  
  .tender-boq-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .form-row {
    flex-direction: column;
    gap: var(--space-3);
  }
  
  .rfq-checkbox-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   11. PROCUREMENT GUIDE & INTERACTIVE FAQ ACCORDION (MILESTONE M2)
   ========================================================================== */

:root {
  --color-surface-card: #0F172A;
  --color-surface-elevated: #1E293B;
  --color-border-card: rgba(255, 255, 255, 0.08);
  --color-border-card-hover: rgba(212, 175, 55, 0.35);
}

/* Dual Buyer Personas Grid */
.procurement-personas-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.procurement-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border-card);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.procurement-card:hover {
  transform: translateY(-4px);
}

.procurement-card-operator:hover {
  border-color: rgba(212, 175, 55, 0.45);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4), 0 0 24px rgba(212, 175, 55, 0.15);
}

.procurement-card-contractor:hover {
  border-color: rgba(0, 210, 255, 0.45);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4), 0 0 24px rgba(0, 210, 255, 0.15);
}

.procurement-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.procurement-icon-badge {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.procurement-icon-badge.badge-gold {
  background: rgba(212, 175, 55, 0.15);
  color: var(--color-gold-metallic);
  border: 1px solid rgba(212, 175, 55, 0.35);
}

.procurement-icon-badge.badge-cyan {
  background: rgba(0, 210, 255, 0.15);
  color: var(--color-cyan-400);
  border: 1px solid rgba(0, 210, 255, 0.35);
}

.procurement-card-title {
  font-size: 1.25rem;
  font-weight: var(--font-bold);
  color: var(--color-text-primary-light);
  margin: 0 0 4px 0;
  line-height: var(--leading-snug);
}

.procurement-card-subtitle {
  font-size: var(--text-xs);
  color: var(--color-text-muted-light);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  font-weight: var(--font-medium);
}

.procurement-feature-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-8) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  flex-grow: 1;
}

.procurement-feature-list li {
  font-size: 0.9375rem;
  line-height: var(--leading-normal);
  color: var(--color-text-secondary-light);
}

.procurement-feature-list .feature-key {
  font-weight: var(--font-semibold);
  margin-right: 6px;
}

.procurement-feature-list .text-gold {
  color: var(--color-gold-metallic);
}

.procurement-feature-list .text-cyan {
  color: var(--color-cyan-400);
}

.procurement-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-top: auto;
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* Three Specialized Telephony Engineering Categories */
.specialized-categories {
  margin-bottom: var(--space-16);
}

.specialized-categories-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto var(--space-8) auto;
}

.specialized-categories-title {
  font-size: var(--text-h3);
  font-weight: var(--font-bold);
  color: var(--color-text-primary-light);
  margin-bottom: var(--space-2);
}

.specialized-categories-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted-light);
  line-height: var(--leading-normal);
}

.specialized-categories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.spec-cat-card {
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border-card);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.spec-cat-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-card-hover);
}

.spec-cat-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: var(--font-bold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  margin-bottom: var(--space-3);
  align-self: flex-start;
}

.spec-cat-badge.badge-gold {
  background: rgba(212, 175, 55, 0.15);
  color: var(--color-gold-metallic);
  border: 1px solid rgba(212, 175, 55, 0.35);
}

.spec-cat-badge.badge-red {
  background: rgba(239, 68, 68, 0.15);
  color: #FF5A5A;
  border: 1px solid rgba(239, 68, 68, 0.35);
}

.spec-cat-badge.badge-cyan {
  background: rgba(0, 210, 255, 0.15);
  color: var(--color-cyan-400);
  border: 1px solid rgba(0, 210, 255, 0.35);
}

.spec-cat-title {
  font-size: 1.125rem;
  font-weight: var(--font-bold);
  color: var(--color-text-primary-light);
  margin: 0 0 var(--space-3) 0;
  line-height: var(--leading-snug);
}

.spec-cat-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted-light);
  line-height: 1.6;
  margin-bottom: var(--space-4);
  flex-grow: 1;
}

.spec-cat-models {
  font-size: 0.8125rem;
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-4);
}

.spec-cat-models.text-gold {
  color: var(--color-gold-metallic);
}

.spec-cat-models.text-red {
  color: #FF5A5A;
}

.spec-cat-models.text-cyan {
  color: var(--color-cyan-400);
}

.spec-cat-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: auto;
}

/* Interactive Procurement FAQ Accordion Component */
.procurement-faq-section {
  margin-bottom: var(--space-12);
}

.procurement-faq-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto var(--space-8) auto;
}

.procurement-faq-title {
  font-size: var(--text-h2);
  font-weight: var(--font-bold);
  color: var(--color-text-primary-light);
  margin: 0 0 var(--space-2) 0;
}

.procurement-faq-subtitle {
  font-size: var(--text-body);
  color: var(--color-text-muted-light);
  line-height: var(--leading-normal);
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 920px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.faq-item:hover {
  border-color: rgba(212, 175, 55, 0.25);
}

details[open].faq-item {
  border-color: rgba(212, 175, 55, 0.45);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
  background: rgba(15, 23, 42, 0.98);
}

.faq-question {
  padding: var(--space-5) var(--space-6);
  font-size: 1.05rem;
  font-weight: var(--font-semibold);
  color: var(--color-text-primary-light);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  user-select: none;
  transition: color var(--transition-fast);
  list-style: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::marker {
  display: none;
}

.faq-question:hover {
  color: var(--color-gold-metallic);
}

.faq-question:focus-visible {
  outline: 2px solid var(--color-gold-metallic);
  outline-offset: -2px;
}

details[open] .faq-question {
  color: var(--color-gold-metallic);
}

.faq-arrow {
  color: var(--color-gold-metallic);
  font-size: 1.25rem;
  font-weight: bold;
  line-height: 1;
  transition: transform var(--transition-normal);
  flex-shrink: 0;
  display: inline-block;
}

details[open] .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 var(--space-6) var(--space-6) var(--space-6);
  font-size: 0.9375rem;
  color: var(--color-text-secondary-light);
  line-height: 1.7;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: var(--space-4);
  margin-top: var(--space-2);
  animation: faqFadeIn 0.25s ease-out;
}

@keyframes faqFadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Procurement Consultation & Tender Takeoff Bar */
.procurement-cta-bar {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.98) 100%);
  border: 1px solid rgba(212, 175, 55, 0.35);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  margin-top: var(--space-10);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.procurement-cta-content {
  flex: 1;
  min-width: 0;
}

.procurement-cta-title {
  font-size: 1.15rem;
  font-weight: var(--font-bold);
  color: var(--color-text-primary-light);
  margin: 0 0 6px 0;
}

.procurement-cta-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted-light);
  margin: 0;
  line-height: 1.5;
}

.procurement-cta-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Responsive Overrides for Procurement & FAQ */
@media (max-width: 991px) {
  .procurement-personas-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .specialized-categories-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .procurement-cta-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .procurement-cta-actions {
    width: 100%;
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  .procurement-card {
    padding: var(--space-5);
  }

  .procurement-actions {
    flex-direction: column;
    width: 100%;
  }

  .procurement-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .spec-cat-card {
    padding: var(--space-5);
  }

  .spec-cat-actions {
    flex-direction: column;
    width: 100%;
  }

  .spec-cat-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .faq-question {
    padding: var(--space-4);
    font-size: 0.95rem;
  }

  .faq-answer {
    padding: 0 var(--space-4) var(--space-4) var(--space-4);
    font-size: 0.875rem;
  }

  .procurement-cta-bar {
    padding: var(--space-5);
  }

  .procurement-cta-actions .btn {
    width: 100%;
    justify-content: center;
  }
}