/* ==========================================================================
   RACKLAN ENCAGE SOLUTIONS (RES) - EXECUTIVE SAAS DESIGN SYSTEM
   THEME: SHINING SILVER & CHERRY RED
   100% RESPONSIVE FOR ALL DEVICES (320px to 1920px+)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Color Palette - Executive Shining Silver & Cherry Red */
  --bg-dark: #090c13;          /* Deep obsidian silver-black background */
  --bg-surface: #101622;       /* Dark metallic slate surface */
  --bg-card: #161e2e;          /* Silver-tinted card background */
  --bg-card-hover: #1e293e;    /* Elevated silver steel hover */
  --bg-glass: rgba(16, 22, 34, 0.92);
  
  /* Brand Accents - Cherry Red & Shining Silver */
  --primary: #d90429;          /* Deep Vibrant Cherry Red */
  --primary-hover: #ef233c;    /* Glowing Cherry Red */
  --accent-cherry: #d90429;    /* Cherry Red accent */
  --accent-bright: #ef233c;    /* Bright Crimson Cherry */
  --accent-glow: rgba(217, 4, 41, 0.35);
  
  /* Metallic Silver Shades */
  --silver-light: #ffffff;     /* Pure Shining White Silver */
  --silver-bright: #f1f5f9;    /* Platinum Silver */
  --silver-metallic: #e2e8f0;  /* Metallic Steel Silver */
  --silver-muted: #cbd5e1;     /* Brushed Silver Gray */
  --silver-subtle: #94a3b8;    /* Dark Steel Gray */

  /* Text Colors */
  --text-main: #f8fafc;
  --text-muted: #cbd5e1;        /* Crisp silver body text */
  --text-subtle: #94a3b8;

  /* Borders & Glass Dividers */
  --border-light: rgba(226, 232, 240, 0.14);
  --border-silver: rgba(241, 245, 249, 0.35);
  --border-active: rgba(217, 4, 41, 0.55);
  --border-glow: rgba(239, 35, 60, 0.45);

  /* Fonts */
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Radius & Shadows */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;

  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 20px 40px -10px rgba(0, 0, 0, 0.8);
  --shadow-glow: 0 0 30px rgba(217, 4, 41, 0.35);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  width: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  width: 100%;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

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

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

/* Layout Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Dual Floating Sticky Action Buttons (POSITIONED ON RIGHT SIDE) */
.floating-sticky-actions {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  left: auto;
  z-index: 2500;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.75rem;
}

.floating-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 50px;
  font-weight: 800;
  font-size: 0.875rem;
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.5);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  white-space: nowrap;
}

.floating-call-btn {
  background: linear-gradient(135deg, #d90429 0%, #ba181b 100%);
  color: #fff;
  box-shadow: 0 6px 22px rgba(217, 4, 41, 0.45);
}

.floating-call-btn:hover {
  background: linear-gradient(135deg, #ef233c 0%, #d90429 100%);
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 10px 28px rgba(239, 35, 60, 0.65);
  color: #fff;
}

.floating-whatsapp-btn {
  background: #10b981;
  color: #fff;
  box-shadow: 0 6px 22px rgba(16, 185, 129, 0.45);
}

.floating-whatsapp-btn:hover {
  background: #059669;
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 10px 28px rgba(16, 185, 129, 0.65);
  color: #fff;
}

/* Ambient Background Blur Orbs */
.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: 0;
}
.bg-orb-1 {
  width: min(500px, 80vw);
  height: min(500px, 80vw);
  background: rgba(217, 4, 41, 0.16);
  top: -100px;
  left: -100px;
}
.bg-orb-2 {
  width: min(550px, 80vw);
  height: min(550px, 80vw);
  background: rgba(226, 232, 240, 0.08);
  top: 450px;
  right: -150px;
}

/* ==========================================================================
   HEADER & MEGA MENU
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-light);
  transition: all 0.3s ease;
  width: 100%;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  gap: 1rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  letter-spacing: -0.02em;
  color: #fff;
  white-space: nowrap;
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #d90429, #990000);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px var(--accent-glow);
  flex-shrink: 0;
}

.brand-icon svg {
  width: 22px;
  height: 22px;
  color: #fff;
}

.brand-text span {
  color: var(--accent-bright);
}

/* Navigation Links */
.main-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: color 0.2s ease;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 0;
  position: relative;
  white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
  color: #fff;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, #d90429, #ef233c);
  border-radius: 2px;
  box-shadow: 0 0 10px #ef233c;
}

/* Products Dropdown (Mega Menu Desktop) */
.has-dropdown {
  position: relative;
}

.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  width: min(980px, 94vw);
  background: var(--bg-surface);
  border: 1px solid var(--border-silver);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg), 0 0 40px rgba(0, 0, 0, 0.9);
  padding: 1.75rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  z-index: 1050;
}

.has-dropdown:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.mega-col-title {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-bright);
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

.mega-col-title svg {
  width: 16px;
  height: 16px;
  color: var(--accent-bright);
}

.mega-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mega-item {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  display: block;
}

.mega-item:hover {
  background: rgba(217, 4, 41, 0.14);
  color: #fff;
  transform: translateX(4px);
}

/* Action Buttons */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.6rem 1.25rem;
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.btn-primary, .btn-cyan {
  background: linear-gradient(135deg, #d90429 0%, #ba181b 100%);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  box-shadow: 0 4px 18px rgba(217, 4, 41, 0.4);
}

.btn-primary:hover, .btn-cyan:hover {
  background: linear-gradient(135deg, #ef233c 0%, #d90429 100%);
  box-shadow: 0 6px 24px rgba(239, 35, 60, 0.6);
  transform: translateY(-2px);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--silver-subtle);
  color: var(--silver-bright);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  color: #fff;
  transform: translateY(-1px);
}

.btn-silver {
  background: linear-gradient(135deg, #f8fafc 0%, #cbd5e1 100%);
  border: 1px solid #ffffff;
  color: #090c13;
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}

.btn-silver:hover {
  background: #ffffff;
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.35);
  transform: translateY(-2px);
}

/* HIGH-VISIBILITY HAMBURGER BUTTON STYLING */
.hamburger-btn {
  display: none;
  background: rgba(217, 4, 41, 0.22);
  border: 1px solid var(--accent-bright);
  border-radius: var(--radius-md);
  color: #ffffff;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px 12px;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
  box-shadow: 0 0 15px rgba(217, 4, 41, 0.35);
}

.hamburger-btn svg {
  width: 24px;
  height: 24px;
  stroke: #ffffff;
}

.hamburger-btn:hover, .hamburger-btn:active {
  background: var(--accent-bright);
  color: #ffffff;
  transform: scale(1.05);
  box-shadow: 0 0 20px rgba(239, 35, 60, 0.6);
}

/* Mobile Nav Drawer Overlay */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(340px, 85vw);
  height: 100vh;
  background: var(--bg-surface);
  border-left: 1px solid var(--border-silver);
  box-shadow: var(--shadow-lg), 0 0 50px rgba(0,0,0,0.9);
  z-index: 3500;
  padding: 1.75rem 1.25rem;
  transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

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

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.75rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-light);
}

.close-drawer-btn {
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--border-silver);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.close-drawer-btn svg {
  width: 24px;
  height: 24px;
  stroke: #ffffff;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mobile-nav-link {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-light);
  transition: all 0.2s ease;
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  background: rgba(217, 4, 41, 0.15);
  border-color: var(--accent-bright);
  color: #fff;
}

.mobile-category-group {
  margin-top: 1rem;
  border-top: 1px solid var(--border-light);
  padding-top: 1rem;
}

.mobile-category-title {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-bright);
  margin-bottom: 0.75rem;
}

.mobile-sub-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 0.5rem;
}

.mobile-sub-item {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  display: block;
}

.mobile-sub-item:hover {
  color: var(--accent-bright);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  position: relative;
  padding: 4rem 0 3rem;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(217, 4, 41, 0.12);
  border: 1px solid rgba(217, 4, 41, 0.4);
  border-radius: 50px;
  font-size: clamp(0.75rem, 2vw, 0.85rem);
  font-weight: 700;
  color: var(--accent-bright);
  margin-bottom: 1.25rem;
  box-shadow: 0 0 15px rgba(217, 4, 41, 0.2);
}

.hero-title {
  font-size: clamp(2.1rem, 5vw, 3.35rem);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.hero-title .highlight {
  background: linear-gradient(135deg, #ffffff 40%, var(--accent-bright) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: clamp(0.975rem, 2vw, 1.15rem);
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 2rem;
  max-width: 600px;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

/* Stat Strip */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border-silver);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  font-weight: 800;
  color: var(--accent-bright);
  line-height: 1.1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: clamp(0.65rem, 1.5vw, 0.75rem);
  color: var(--silver-bright);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Animated Cabinet Visual */
.rack-visual-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-silver);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 0, 0, 0.7);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
}

.rack-cabinet-visual {
  width: 100%;
  max-width: 250px;
  height: 380px;
  background: #080b11;
  border: 2px solid #334155;
  border-radius: 12px;
  position: relative;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  box-shadow: 0 0 35px rgba(0, 0, 0, 0.9), inset 0 0 25px rgba(0,0,0,0.95);
}

.rack-unit {
  height: 28px;
  background: #141c2c;
  border: 1px solid #2a3850;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px;
  position: relative;
  overflow: hidden;
}

.rack-unit::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-bright);
  box-shadow: 0 0 8px var(--accent-bright);
}

.rack-unit-status {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-bright);
  box-shadow: 0 0 10px var(--accent-bright);
  animation: pulse-led 1.8s infinite ease-in-out;
  flex-shrink: 0;
}

.rack-unit-status.amber {
  background: #f59e0b;
  box-shadow: 0 0 10px #f59e0b;
}

.rack-unit-label {
  font-family: var(--font-mono);
  font-size: clamp(0.55rem, 1.2vw, 0.65rem);
  color: var(--silver-bright);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ==========================================================================
   CARDS & SECTIONS
   ========================================================================== */
.section {
  padding: 4rem 0;
  position: relative;
  width: 100%;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
  padding: 0 1rem;
}

.section-tag {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-bright);
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
  color: #fff;
}

.section-subtitle {
  font-size: clamp(0.95rem, 2vw, 1.05rem);
  color: var(--text-muted);
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* Standard SaaS Card */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  border-color: var(--border-active);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md), 0 0 20px rgba(217, 4, 41, 0.15);
}

.card-icon {
  width: 50px;
  height: 50px;
  background: rgba(217, 4, 41, 0.12);
  border: 1px solid rgba(217, 4, 41, 0.3);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-bright);
  margin-bottom: 1.25rem;
  flex-shrink: 0;
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

.card-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.65rem;
}

.card-desc {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Product Card Spec Mini Table */
.product-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all 0.3s ease;
  height: 100%;
}

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

.product-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.badge {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 50px;
  background: rgba(217, 4, 41, 0.15);
  color: var(--accent-bright);
  border: 1px solid rgba(217, 4, 41, 0.4);
}

.product-card-title {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  color: #fff;
}

.product-card-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
  gap: 8px;
}

.link-btn {
  color: var(--accent-bright);
  font-weight: 700;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s ease;
}

.link-btn:hover {
  gap: 8px;
  color: #fff;
}

/* ==========================================================================
   PRODUCT DETAIL VIEW TEMPLATE
   ========================================================================== */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-subtle);
  margin-bottom: 1.5rem;
}

.breadcrumb a:hover {
  color: var(--accent-bright);
}

.product-detail-hero {
  background: var(--bg-card);
  border: 1px solid var(--border-silver);
  border-radius: var(--radius-xl);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  margin-bottom: 2rem;
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
}

.spec-table-container {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-top: 1.25rem;
}

.spec-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.spec-table th, .spec-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-light);
}

.spec-table th {
  background: rgba(217, 4, 41, 0.1);
  font-weight: 800;
  color: var(--accent-bright);
  text-transform: uppercase;
  font-size: 0.725rem;
  letter-spacing: 0.05em;
}

.spec-table td {
  color: var(--text-main);
}

.spec-table tr:hover td {
  background: rgba(255, 255, 255, 0.03);
}

.feature-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1.5rem 0;
}

.feature-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-silver);
  border-radius: 50px;
  font-size: 0.825rem;
  color: var(--silver-bright);
  font-weight: 500;
}

.sticky-quote-sidebar {
  position: sticky;
  top: 90px;
  background: var(--bg-surface);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md), 0 0 25px rgba(217, 4, 41, 0.2);
}

/* ==========================================================================
   MODAL & TOASTS
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(9, 12, 19, 0.88);
  backdrop-filter: blur(10px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  padding: 1rem;
}

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

.modal-card {
  width: 100%;
  max-width: 580px;
  background: var(--bg-surface);
  border: 1px solid var(--border-silver);
  border-radius: var(--radius-xl);
  padding: clamp(1.25rem, 3vw, 2rem);
  box-shadow: var(--shadow-lg);
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-subtle);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 4px;
}

.form-group {
  margin-bottom: 1.15rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--silver-bright);
  margin-bottom: 0.4rem;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  color: var(--text-main);
  outline: none;
  font-size: 0.9rem;
  transition: border-color 0.2s ease;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent-bright);
  box-shadow: 0 0 10px rgba(239, 35, 60, 0.3);
}

.toast-container {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  right: auto;
  z-index: 4000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: calc(100vw - 3rem);
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0.85rem 1.15rem;
  background: var(--bg-surface);
  border: 1px solid var(--accent-bright);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  color: #fff;
  font-size: 0.875rem;
  animation: slide-in-toast 0.3s ease forwards;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-light);
  padding: 3.5rem 0 2rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr 1.5fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer-title {
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 1.15rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.875rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--accent-bright);
}

/* Footer Bottom Copyright Section */
.footer-bottom {
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-subtle);
  width: 100%;
  line-height: 1.6;
}

.web-vistara-highlight {
  color: var(--accent-bright);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: all 0.25s ease;
  margin-left: 4px;
}

.web-vistara-highlight:hover {
  color: #ffffff;
  text-shadow: 0 0 12px var(--accent-bright);
}

/* ==========================================================================
   ROBUST RESPONSIVE BREAKPOINTS
   ========================================================================== */

@media (max-width: 1200px) {
  .container {
    max-width: 100%;
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 2rem;
  }
}

@media (max-width: 1024px) {
  .main-nav {
    display: none !important;
  }
  .hamburger-btn {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    text-align: center;
  }
  .hero-lead {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-ctas {
    justify-content: center;
  }
  .product-detail-grid {
    grid-template-columns: 1fr;
  }
  .sticky-quote-sidebar {
    position: static;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .section {
    padding: 3rem 0;
  }
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  .stat-strip {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .header-actions {
    gap: 0.5rem;
  }
  .btn {
    padding: 0.55rem 1rem;
    font-size: 0.85rem;
  }
}

@media (max-width: 640px) {
  .floating-sticky-actions {
    bottom: 1.25rem;
    right: 1rem;
    left: auto;
    gap: 0.5rem;
  }
  .floating-btn span {
    display: none;
  }
  .floating-btn {
    padding: 12px;
    border-radius: 50%;
  }
  .floating-btn svg {
    width: 20px;
    height: 20px;
  }
  .header-inner {
    height: 66px;
  }
  .brand-text span {
    display: none;
  }
  .header-quote-btn {
    display: none;
  }
  .hero-section {
    padding: 2.5rem 0 2rem;
  }
  .stat-strip {
    grid-template-columns: repeat(2, 1fr);
    padding: 1rem 0.75rem;
    gap: 0.5rem;
  }
  .stat-value {
    font-size: 1.15rem;
  }
  .stat-label {
    font-size: 0.6rem;
  }
  .rack-cabinet-visual {
    max-width: 100%;
    height: 340px;
  }
  .rack-unit-label {
    font-size: 0.55rem;
  }
  .filter-btn {
    width: 100%;
  }
  .product-card-footer {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .product-card-footer .link-btn {
    justify-content: center;
  }
  .toast-container {
    left: 1rem;
    right: auto;
    bottom: 1rem;
    max-width: calc(100vw - 2rem);
  }
}

@media (max-width: 360px) {
  .stat-strip {
    grid-template-columns: 1fr;
  }
  .brand-logo {
    font-size: 1rem;
  }
}

/* Keyframes */
@keyframes pulse-led {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.3; transform: scale(0.9); }
}

@keyframes slide-in-toast {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}