/* ============================================================
   OPTION 4 — DESIGN THINKING DARK
   Carter Power Systems
   Editorial, refined, process-oriented dark aesthetic
   Glassmorphism + Gold accent + Blue secondary
   ============================================================ */

/* --- Design Tokens --- */
:root {
  --bg-body: #0A0A0A;
  --bg-card: #111111;
  --bg-elevated: #1A1A1A;
  --bg-input: #0F0F0F;

  --glass-bg: rgba(17, 17, 17, 0.65);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur: blur(12px);

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-medium: rgba(255, 255, 255, 0.1);
  --border-gold: rgba(236, 170, 35, 0.3);

  --gold: #ECAA23;
  --gold-hover: #F5BD3F;
  --gold-dim: rgba(236, 170, 35, 0.12);
  --gold-glow: rgba(236, 170, 35, 0.15);

  --blue: #3B82F6;
  --blue-dim: rgba(59, 130, 246, 0.12);

  --text-primary: #F5F5F5;
  --text-secondary: #9CA3AF;
  --text-tertiary: #6B7280;
  --text-inverse: #0A0A0A;

  --accent-green: #22C55E;
  --accent-red: #EF4444;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.7);
  --shadow-gold: 0 0 30px rgba(236, 170, 35, 0.12);
  --shadow-gold-hover: 0 0 30px rgba(236, 170, 35, 0.15);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition: 0.3s ease;
  --transition-fast: 0.2s ease;
  --nav-height: 72px;
}

/* --- Selection --- */
::selection {
  background: var(--gold);
  color: var(--text-inverse);
}

::-moz-selection {
  background: var(--gold);
  color: var(--text-inverse);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Typography --- */
h1 {
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

h3 {
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

h4 {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.35;
}

/* --- Gradient Dividers --- */
.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  border: none;
  opacity: 0.4;
}

/* --- Section Headers --- */
.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 56px;
}

.section-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
  padding: 5px 16px;
  background: var(--gold-dim);
  border-radius: var(--radius-pill);
  border: 1px solid rgba(236, 170, 35, 0.2);
}

.section-header h2 {
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.75;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 12px 26px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gold);
  color: var(--text-inverse);
}

.btn-primary:hover {
  background: var(--gold-hover);
  box-shadow: var(--shadow-gold-hover);
  transform: translateY(-1px);
}

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

.btn-outline:hover {
  background: var(--gold-dim);
  border-color: var(--gold-hover);
  box-shadow: var(--shadow-gold);
}

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

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-lg {
  padding: 15px 34px;
  font-size: 0.95rem;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.8rem;
}

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

.btn-nav-cta {
  background: var(--gold);
  color: var(--text-inverse);
  padding: 10px 22px;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-md);
}

.btn-nav-cta:hover {
  background: var(--gold-hover);
  box-shadow: var(--shadow-gold);
}

/* ============================================================
   EMERGENCY BANNER
   ============================================================ */
.emergency-banner {
  background: var(--gold);
  color: var(--text-inverse);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 10px 0;
  position: relative;
  z-index: 1100;
}

.emergency-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.emergency-inner i.fa-bolt {
  margin-right: 4px;
}

.emergency-phone {
  color: var(--text-inverse);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  background: rgba(0, 0, 0, 0.15);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.emergency-phone:hover {
  background: rgba(0, 0, 0, 0.25);
}

.emergency-close {
  background: none;
  border: none;
  color: var(--text-inverse);
  cursor: pointer;
  font-size: 1rem;
  padding: 4px 8px;
  opacity: 0.7;
  transition: var(--transition);
}

.emergency-close:hover {
  opacity: 1;
}

.emergency-banner.hidden {
  display: none;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.88);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-subtle);
  height: var(--nav-height);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.95);
  box-shadow: 0 2px 30px rgba(0, 0, 0, 0.6);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
}

.logo-mark {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-carter {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.logo-divider {
  width: 2px;
  height: 28px;
  background: var(--gold);
  opacity: 0.6;
}

.logo-ps {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Nav menu */
.nav-menu ul {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-menu a {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 8px 14px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--text-primary);
}

.nav-menu a .fa-chevron-down {
  font-size: 0.6rem;
  opacity: 0.5;
}

/* Dropdowns */
.has-dropdown {
  position: relative;
}

.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 270px;
  background: var(--bg-elevated);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 8px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: var(--transition);
  z-index: 100;
}

.has-dropdown:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
}

.dropdown a:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.dropdown a i {
  width: 18px;
  text-align: center;
  color: var(--gold);
  font-size: 0.8rem;
}

.dropdown-view-all {
  border-top: 1px solid var(--border-subtle);
  margin-top: 4px;
  padding-top: 10px !important;
  color: var(--gold) !important;
  font-weight: 600 !important;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Search Button */
.search-btn {
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.search-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

/* Search Overlay */
.search-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.search-overlay.active {
  opacity: 1;
  visibility: visible;
}

.search-overlay-inner {
  width: 100%;
  max-width: 700px;
  padding: 0 24px;
  position: relative;
}

.search-close {
  position: absolute;
  top: -60px;
  right: 24px;
  width: 48px;
  height: 48px;
  border: none;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.search-close:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}

.search-content h2 {
  text-align: center;
  color: var(--text-primary);
  margin-bottom: 32px;
  font-size: 1.6rem;
}

.search-form {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
}

.search-input-wrapper {
  flex: 1;
  position: relative;
}

.search-input-wrapper i {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  font-size: 1rem;
}

.search-input-wrapper input {
  width: 100%;
  padding: 16px 18px 16px 50px;
  font-family: var(--font);
  font-size: 1rem;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  outline: none;
  transition: var(--transition);
}

.search-input-wrapper input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-dim);
}

.search-input-wrapper input::placeholder {
  color: var(--text-tertiary);
}

.search-suggestions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.suggestions-label {
  font-size: 0.82rem;
  color: var(--text-tertiary);
}

.suggestion-tag {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--gold);
  background: var(--gold-dim);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(236, 170, 35, 0.15);
  transition: var(--transition);
}

.suggestion-tag:hover {
  background: rgba(236, 170, 35, 0.2);
  border-color: var(--gold);
}

@media (max-width: 768px) {
  .search-overlay {
    padding-top: 10vh;
  }

  .search-form {
    flex-direction: column;
  }

  .search-close {
    top: -50px;
    right: 16px;
  }

  .search-content h2 {
    font-size: 1.3rem;
    margin-bottom: 24px;
  }
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
  border-radius: 2px;
}

/* ============================================================
   HERO — CINEMATIC FULL-VIEWPORT
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg-body);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10, 10, 10, 0.75) 0%,
    rgba(10, 10, 10, 0.6) 40%,
    rgba(10, 10, 10, 0.85) 100%
  );
}

.hero .container {
  position: relative;
  z-index: 2;
  text-align: center;
  padding-top: 60px;
  padding-bottom: 60px;
}

.hero-content {
  max-width: 860px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  background: var(--gold-dim);
  padding: 7px 20px;
  border-radius: var(--radius-pill);
  margin-bottom: 28px;
  border: 1px solid rgba(236, 170, 35, 0.2);
}

.hero h1 {
  color: #fff;
  margin-bottom: 8px;
}

.hero-gradient-line {
  width: 200px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  margin: 20px auto 24px;
  animation: gradientPulse 3s ease-in-out infinite;
}

@keyframes gradientPulse {
  0%, 100% { opacity: 0.5; width: 200px; }
  50% { opacity: 1; width: 300px; }
}

.hero-subtitle {
  font-size: 1.15rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 660px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-trust-bar {
  display: flex;
  gap: 32px;
  justify-content: center;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-tertiary);
}

.trust-item i {
  color: var(--gold);
  font-size: 0.9rem;
}

/* ============================================================
   PROCESS TIMELINE — "OUR APPROACH"
   ============================================================ */
.process-section {
  padding: 110px 0;
  background: var(--bg-body);
  position: relative;
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
  margin-top: 20px;
}

/* Gold connecting line */
.process-timeline::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 60px;
  right: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-dim), var(--gold), var(--gold-dim));
  transform: translateY(-50%);
  z-index: 1;
  opacity: 0.5;
}

.process-step {
  position: relative;
  z-index: 2;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  transition: var(--transition);
  min-height: 420px;
  display: flex;
  flex-direction: column;
}

.process-step:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-gold-hover);
  border-color: var(--border-gold);
}

.process-step-image {
  position: relative;
  height: 200px;
  overflow: hidden;
}

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

.process-step:hover .process-step-image img {
  transform: scale(1.05);
}

.process-step-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 10, 10, 0.3) 0%, rgba(10, 10, 10, 0.85) 100%);
}

.process-step-number {
  position: absolute;
  top: 16px;
  left: 16px;
  width: 40px;
  height: 40px;
  background: var(--gold);
  color: var(--text-inverse);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 800;
  z-index: 3;
}

.process-step-icon {
  position: absolute;
  bottom: 16px;
  right: 16px;
  width: 48px;
  height: 48px;
  background: rgba(236, 170, 35, 0.2);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
}

.process-step-icon i {
  color: var(--gold);
  font-size: 1.2rem;
}

.process-step-content {
  padding: 28px 24px 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.process-step-content h3 {
  color: var(--text-primary);
  margin-bottom: 10px;
  font-size: 1.25rem;
}

.process-step-content > p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 18px;
}

.process-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
  flex: 1;
}

.process-list li {
  font-size: 0.84rem;
  color: var(--text-secondary);
  padding-left: 20px;
  position: relative;
  line-height: 1.5;
}

.process-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 6px;
  height: 6px;
  background: var(--gold);
  border-radius: 50%;
}

.process-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
  margin-top: auto;
}

.process-link:hover {
  color: var(--gold-hover);
  gap: 10px;
}

/* ============================================================
   ENGINEERING TOOLS — GLASSMORPHISM
   ============================================================ */
.tools-section {
  padding: 110px 0;
  background: var(--bg-elevated);
  position: relative;
}

.tools-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.3;
}

.tools-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: start;
}

.tool-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 36px;
  transition: var(--transition);
}

.tool-card:hover {
  box-shadow: var(--shadow-gold);
}

.tool-card-featured {
  border-left: 3px solid var(--gold);
}

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

.tool-icon {
  width: 50px;
  height: 50px;
  background: var(--gold-dim);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.tool-icon i {
  color: var(--gold);
  font-size: 1.2rem;
}

.tool-badge {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold);
  background: var(--gold-dim);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(236, 170, 35, 0.15);
}

.tool-card h3 {
  color: var(--text-primary);
  margin-bottom: 10px;
}

.tool-card > p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 24px;
  line-height: 1.65;
}

.tool-cards-secondary {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.tool-card-sm {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  transition: var(--transition);
}

.tool-card-sm:hover {
  background: rgba(26, 26, 26, 0.8);
  border-color: var(--border-gold);
  box-shadow: var(--shadow-gold);
}

.tool-icon-sm {
  width: 44px;
  height: 44px;
  min-width: 44px;
  background: var(--gold-dim);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.tool-icon-sm i {
  color: var(--gold);
  font-size: 1rem;
}

.tool-card-sm h4 {
  color: var(--text-primary);
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.tool-card-sm p {
  color: var(--text-tertiary);
  font-size: 0.82rem;
  line-height: 1.5;
  margin: 0;
}

.tool-arrow {
  color: var(--text-tertiary);
  margin-left: auto;
  font-size: 0.85rem;
  transition: var(--transition);
}

.tool-card-sm:hover .tool-arrow {
  color: var(--gold);
}

/* Forms */
.sizing-form,
.contact-form {
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
}

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

.form-field label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.form-field select,
.form-field input,
.form-field textarea {
  font-family: var(--font);
  font-size: 0.9rem;
  padding: 12px 14px;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  transition: var(--transition);
  outline: none;
}

.form-field select:focus,
.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-dim);
}

.form-field select {
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239CA3AF' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.form-field textarea {
  resize: vertical;
  min-height: 100px;
}

/* ============================================================
   PRODUCTS — TALL CARDS, 3-COLUMN GRID
   ============================================================ */
.products-section {
  padding: 110px 0;
  background: var(--bg-body);
  position: relative;
}

.products-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.3;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition);
  min-height: 520px;
}

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

.product-card-image {
  position: relative;
  height: 60%;
  min-height: 280px;
  overflow: hidden;
}

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

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

.product-card-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(17, 17, 17, 0.95) 100%);
}

.product-count {
  position: absolute;
  top: 14px;
  right: 14px;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #fff;
  background: rgba(10, 10, 10, 0.6);
  backdrop-filter: blur(6px);
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.product-card-info {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card-info h3 {
  color: var(--text-primary);
  margin-bottom: 8px;
}

.product-card-info > p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.55;
  margin-bottom: 14px;
  flex: 1;
}

.product-specs-preview {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.product-specs-preview span {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.product-specs-preview i {
  color: var(--gold);
  font-size: 0.72rem;
}

.product-cat-link {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  transition: var(--transition);
}

.product-card:hover .product-cat-link {
  color: var(--gold-hover);
  gap: 10px;
}

/* ============================================================
   APPLICATIONS — PILL TABS + DARK STYLING
   ============================================================ */
.applications-section {
  padding: 110px 0;
  background: var(--bg-elevated);
  position: relative;
}

.applications-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.3;
}

.applications-tabs {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.tab-nav {
  display: flex;
  gap: 6px;
  padding: 16px 20px;
  background: rgba(10, 10, 10, 0.4);
  border-bottom: 1px solid var(--border-subtle);
  overflow-x: auto;
  scrollbar-width: none;
}

.tab-nav::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  padding: 10px 22px;
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
}

.tab-btn.active {
  background: var(--gold);
  color: var(--text-inverse);
  font-weight: 600;
  border-color: var(--gold);
}

.tab-content {
  display: none;
  padding: 40px;
}

.tab-content.active {
  display: block;
}

.tab-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
}

.tab-text h3 {
  color: var(--text-primary);
  margin-bottom: 12px;
  font-size: 1.4rem;
}

.tab-text > p {
  color: var(--text-secondary);
  font-size: 0.94rem;
  margin-bottom: 24px;
  line-height: 1.7;
}

.app-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 24px;
}

.app-spec {
  background: rgba(10, 10, 10, 0.5);
  padding: 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.spec-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.spec-value {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.app-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.tab-features h4 {
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.feature-tag {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--gold);
  background: var(--gold-dim);
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(236, 170, 35, 0.15);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.feature-list li i {
  color: var(--accent-green);
  margin-top: 3px;
  font-size: 0.75rem;
}

/* ============================================================
   INDUSTRIES — FULL-WIDTH ALTERNATING CARDS
   ============================================================ */
.industries-section {
  padding: 110px 0;
  background: var(--bg-body);
  position: relative;
}

.industries-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.3;
}

.industries-stack {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.industry-wide-card {
  display: flex;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-height: 300px;
  transition: var(--transition);
}

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

.industry-wide-card.reverse {
  flex-direction: row-reverse;
}

.industry-wide-card-image {
  flex: 0 0 45%;
  position: relative;
  overflow: hidden;
}

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

.industry-wide-card:hover .industry-wide-card-image img {
  transform: scale(1.04);
}

.industry-wide-card-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 60%, rgba(17, 17, 17, 0.8) 100%);
}

.industry-wide-card.reverse .industry-wide-card-image-overlay {
  background: linear-gradient(270deg, transparent 60%, rgba(17, 17, 17, 0.8) 100%);
}

.industry-wide-card-content {
  flex: 1;
  padding: 48px 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.industry-icon-circle {
  width: 56px;
  height: 56px;
  background: var(--gold-dim);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.industry-icon-circle i {
  font-size: 1.3rem;
  color: var(--gold);
}

.industry-wide-card-content h3 {
  color: var(--text-primary);
  margin-bottom: 12px;
  font-size: 1.35rem;
}

.industry-wide-card-content > p {
  color: var(--text-secondary);
  font-size: 0.94rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.industry-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.industry-link:hover {
  color: var(--gold-hover);
  gap: 10px;
}

/* ============================================================
   DOCUMENTATION — DARK TABLE/GRID
   ============================================================ */
.documentation-section {
  padding: 110px 0;
  background: var(--bg-elevated);
  position: relative;
}

.documentation-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.3;
}

.doc-search-bar {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.doc-search-input {
  flex: 1;
  min-width: 280px;
  position: relative;
}

.doc-search-input i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  font-size: 0.9rem;
}

.doc-search-input input {
  width: 100%;
  padding: 12px 14px 12px 40px;
  font-family: var(--font);
  font-size: 0.9rem;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  outline: none;
  transition: var(--transition);
}

.doc-search-input input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-dim);
}

.doc-filters {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.doc-filter {
  font-family: var(--font);
  font-size: 0.85rem;
  padding: 10px 14px;
  background: var(--bg-input);
  color: var(--text-secondary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  cursor: pointer;
  outline: none;
  transition: var(--transition);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

.doc-filter:focus {
  border-color: var(--gold);
}

.doc-grid {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.doc-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 24px;
  background: transparent;
  transition: var(--transition);
  border-bottom: 1px solid var(--border-subtle);
}

.doc-card:last-child {
  border-bottom: none;
}

.doc-card:hover {
  background: rgba(255, 255, 255, 0.03);
}

.doc-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.doc-icon i {
  color: var(--accent-red);
  font-size: 1.3rem;
}

.doc-info {
  flex: 1;
  min-width: 0;
}

.doc-info h4 {
  color: var(--text-primary);
  font-size: 0.92rem;
  margin-bottom: 4px;
  font-weight: 500;
}

.doc-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.doc-meta span {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  background: rgba(255, 255, 255, 0.04);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.doc-footer {
  text-align: center;
  margin-top: 32px;
}

/* ============================================================
   SERVICES — 2-COLUMN GRID WITH IMAGES
   ============================================================ */
.services-section {
  padding: 110px 0;
  background: var(--bg-body);
  position: relative;
}

.services-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.3;
}

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

.service-card-new {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition);
}

.service-card-new:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold-hover);
  border-color: var(--border-gold);
}

.service-card-image {
  height: 180px;
  position: relative;
  overflow: hidden;
}

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

.service-card-new:hover .service-card-image img {
  transform: scale(1.05);
}

.service-card-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(17, 17, 17, 0.85) 100%);
}

.service-card-body {
  padding: 28px 24px 32px;
}

.service-icon-new {
  width: 48px;
  height: 48px;
  background: var(--gold-dim);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.service-icon-new i {
  color: var(--gold);
  font-size: 1.2rem;
}

.service-card-body h3 {
  color: var(--text-primary);
  margin-bottom: 10px;
}

.service-card-body p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  margin-bottom: 16px;
  line-height: 1.65;
}

.service-link {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.service-link:hover {
  color: var(--gold-hover);
  gap: 10px;
}

/* ============================================================
   CASE STUDIES — FEATURED LAYOUT
   ============================================================ */
.case-studies-section {
  padding: 110px 0;
  background: var(--bg-elevated);
  position: relative;
}

.case-studies-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.3;
}

.case-studies-featured {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 40px;
}

/* Featured hero-style card */
.case-study-hero {
  display: flex;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-height: 400px;
  transition: var(--transition);
}

.case-study-hero:hover {
  box-shadow: var(--shadow-gold);
  border-color: var(--border-gold);
}

.case-study-hero-image {
  flex: 0 0 50%;
  position: relative;
  overflow: hidden;
}

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

.case-study-hero:hover .case-study-hero-image img {
  transform: scale(1.03);
}

.case-study-hero-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 60%, rgba(17, 17, 17, 0.6) 100%);
}

.case-study-hero-content {
  flex: 1;
  padding: 48px 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Side-by-side cards row */
.case-studies-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.case-study-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition);
}

.case-study-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold-hover);
  border-color: var(--border-gold);
}

.case-study-card-image {
  height: 220px;
  position: relative;
  overflow: hidden;
}

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

.case-study-card:hover .case-study-card-image img {
  transform: scale(1.05);
}

.case-study-card-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(17, 17, 17, 0.85) 100%);
}

.case-study-card-content {
  padding: 28px 24px 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Shared case study styles */
.case-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}

.case-tag {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gold);
  background: var(--gold-dim);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(236, 170, 35, 0.15);
}

.case-study-hero-content h3,
.case-study-card-content h3 {
  color: var(--text-primary);
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.case-study-hero-content > p,
.case-study-card-content > p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
  margin-bottom: 24px;
}

.case-metrics {
  display: flex;
  gap: 32px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.case-metric {
  text-align: left;
}

.metric-value {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--gold);
  line-height: 1.2;
}

.metric-label {
  display: block;
  font-size: 0.73rem;
  color: var(--text-tertiary);
  margin-top: 2px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.case-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
  margin-top: auto;
}

.case-link:hover {
  color: var(--gold-hover);
  gap: 10px;
}

.case-footer {
  text-align: center;
}

/* ============================================================
   WHY CARTER — STATS WITH ANIMATED UNDERLINES
   ============================================================ */
.why-carter {
  padding: 110px 0;
  position: relative;
  overflow: hidden;
}

.why-carter-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.why-carter-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.why-carter-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 10, 10, 0.95) 0%,
    rgba(10, 10, 10, 0.88) 50%,
    rgba(10, 10, 10, 0.92) 100%
  );
}

.why-carter .container {
  position: relative;
  z-index: 2;
}

.why-carter-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.why-carter-text .section-label {
  margin-bottom: 16px;
}

.why-carter-text h2 {
  color: #fff;
  margin-bottom: 16px;
}

.why-carter-text > p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 40px;
}

.credibility-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.cred-item {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cred-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--gold);
  line-height: 1.1;
}

.cred-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-top: 6px;
}

/* Animated gold underline */
.cred-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: width 0.5s ease;
}

.cred-item:hover::after {
  width: 60%;
}

.why-carter-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.wc-feature {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  transition: var(--transition);
}

.wc-feature:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-gold);
  box-shadow: var(--shadow-gold);
}

.wc-feature > i {
  color: var(--gold);
  font-size: 1.1rem;
  margin-top: 2px;
  flex-shrink: 0;
}

.wc-feature h4 {
  color: var(--text-primary);
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.wc-feature p {
  color: var(--text-tertiary);
  font-size: 0.85rem;
  line-height: 1.55;
  margin: 0;
}

/* ============================================================
   COVERAGE MAP
   ============================================================ */
.coverage-section {
  padding: 110px 0;
  background: var(--bg-body);
  position: relative;
}

.coverage-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.3;
}

.coverage-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: center;
}

.coverage-text .section-label {
  margin-bottom: 12px;
}

.coverage-text h2 {
  color: var(--text-primary);
  margin-bottom: 14px;
}

.coverage-text > p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 28px;
}

.coverage-locations {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}

.location-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.location-item:hover {
  border-color: var(--border-gold);
  box-shadow: var(--shadow-gold);
}

.location-item i {
  color: var(--gold);
  font-size: 1rem;
  margin-top: 2px;
}

.location-item strong {
  display: block;
  color: var(--text-primary);
  font-size: 0.92rem;
}

.location-item span {
  color: var(--text-tertiary);
  font-size: 0.82rem;
}

.coverage-map {
  position: relative;
}

.map-placeholder {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-height: 440px;
  border: 1px solid var(--glass-border);
}

.map-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  filter: brightness(0.3) saturate(0.4);
}

.map-overlay-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 40px;
  min-height: 440px;
}

.map-overlay-content > i {
  font-size: 2.5rem;
  color: var(--gold);
  margin-bottom: 16px;
}

.map-overlay-content > span {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.map-overlay-content > p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  max-width: 360px;
  margin-bottom: 20px;
}

.map-search {
  display: flex;
  gap: 10px;
  width: 100%;
  max-width: 380px;
}

.map-search input {
  flex: 1;
  padding: 11px 14px;
  font-family: var(--font);
  font-size: 0.88rem;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  outline: none;
  transition: var(--transition);
}

.map-search input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-dim);
}

/* ============================================================
   CTA SECTION — GLASSMORPHISM CARDS
   ============================================================ */
.cta-section {
  padding: 100px 0;
  background: var(--bg-elevated);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.3;
}

/* Subtle gradient background accent */
.cta-section::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(236, 170, 35, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.cta-layout {
  text-align: center;
  position: relative;
  z-index: 2;
}

.cta-text {
  margin-bottom: 44px;
}

.cta-text h2 {
  color: #fff;
  margin-bottom: 14px;
}

.cta-text p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 620px;
  margin: 0 auto;
}

.cta-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}

.cta-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
}

.cta-card:hover {
  background: rgba(26, 26, 26, 0.8);
  transform: translateY(-6px);
  box-shadow: var(--shadow-gold-hover);
  border-color: var(--border-gold);
}

.cta-card i {
  font-size: 2rem;
  color: var(--gold);
  margin-bottom: 18px;
  display: block;
}

.cta-card h4 {
  color: var(--text-primary);
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.cta-card p {
  color: var(--text-tertiary);
  font-size: 0.88rem;
  line-height: 1.55;
  margin: 0;
}

/* ============================================================
   CONTACT — DARK FORM WITH FLOATING LABELS EFFECT
   ============================================================ */
.contact-section {
  padding: 110px 0;
  background: var(--bg-body);
  position: relative;
}

.contact-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.3;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: start;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 40px;
}

/* Sidebar */
.contact-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + 24px);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  transition: var(--transition);
}

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

.sidebar-card h4 {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  font-size: 0.92rem;
  margin-bottom: 8px;
}

.sidebar-card h4 i {
  color: var(--gold);
  font-size: 0.9rem;
}

.sidebar-card p {
  color: var(--text-tertiary);
  font-size: 0.85rem;
  margin: 0;
  line-height: 1.55;
}

.emergency-link,
.phone-link,
.email-link {
  display: block;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--gold);
  margin-top: 6px;
  transition: var(--transition);
}

.emergency-link:hover,
.phone-link:hover,
.email-link:hover {
  color: var(--gold-hover);
}

.email-link {
  font-size: 0.9rem;
  word-break: break-all;
}

/* ============================================================
   PERSONAS SECTION
   ============================================================ */
.personas-section {
  background: var(--bg-primary);
  padding: 80px 0;
}

.personas-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.persona-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  border: 1px solid var(--border-subtle);
  transition: var(--transition);
}

.persona-card:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.persona-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), #D4941A);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
}

.persona-icon i {
  font-size: 1.5rem;
  color: var(--bg-primary);
}

.persona-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.persona-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.persona-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.persona-link:hover {
  gap: 10px;
}

.persona-link i {
  font-size: 0.75rem;
}

@media (max-width: 768px) {
  .personas-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .persona-card {
    padding: 32px 24px;
  }
}

/* ============================================================
   FOOTER — MINIMAL DARK WITH GOLD ACCENTS
   ============================================================ */
.footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0 0;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.3fr 2.7fr;
  gap: 60px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-subtle);
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .footer-logo {
  margin-bottom: 16px;
}

.footer-logo .logo-carter {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.footer-logo .logo-ps {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gold);
}

.footer-logo .logo-divider {
  height: 20px;
  background: var(--gold);
  opacity: 0.5;
}

.footer-brand > p {
  color: var(--text-tertiary);
  font-size: 0.85rem;
  line-height: 1.65;
  margin-bottom: 20px;
}

.footer-certifications {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-certifications span {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-certifications i {
  color: var(--gold);
  font-size: 0.75rem;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.footer-col h4 {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gold);
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col a {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--text-primary);
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border-light);
}
.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 1rem;
  transition: var(--transition);
  border: 1px solid var(--border-light);
}
.footer-social a:hover {
  background: var(--gold);
  color: var(--bg-primary);
  border-color: var(--gold);
  transform: translateY(-2px);
}

.footer-bottom {
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  line-height: 1.6;
}

.footer-bottom a {
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-bottom a:hover {
  color: var(--gold);
}

.footer-parent {
  margin-top: 4px;
}

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 50px;
  height: 50px;
  background: var(--gold);
  color: var(--text-inverse);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: var(--transition);
  z-index: 900;
  box-shadow: var(--shadow-md);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--gold-hover);
  box-shadow: var(--shadow-gold-hover);
  transform: translateY(-3px);
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-body);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-elevated);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

/* ============================================================
   RESPONSIVE — TABLET (max-width: 1024px)
   ============================================================ */
@media (max-width: 1200px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .case-studies-row {
    grid-template-columns: 1fr;
  }

  .why-carter-layout {
    gap: 48px;
  }

  .footer-nav {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 1024px) {
  .process-timeline {
    grid-template-columns: 1fr;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
  }

  .process-timeline::before {
    display: none;
  }

  .process-step {
    min-height: auto;
  }

  .tools-grid {
    grid-template-columns: 1fr;
  }

  .tool-cards-secondary {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .tool-card-sm {
    flex: 1 1 calc(50% - 7px);
    min-width: 260px;
  }

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

  .tab-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .industry-wide-card,
  .industry-wide-card.reverse {
    flex-direction: column;
  }

  .industry-wide-card-image {
    flex: none;
    height: 250px;
  }

  .industry-wide-card-image-overlay,
  .industry-wide-card.reverse .industry-wide-card-image-overlay {
    background: linear-gradient(180deg, transparent 50%, rgba(17, 17, 17, 0.8) 100%);
  }

  .industry-wide-card-content {
    padding: 32px;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .case-study-hero {
    flex-direction: column;
  }

  .case-study-hero-image {
    flex: none;
    height: 300px;
  }

  .case-study-hero-image-overlay {
    background: linear-gradient(180deg, transparent 50%, rgba(17, 17, 17, 0.7) 100%);
  }

  .case-study-hero-content {
    padding: 36px;
  }

  .case-studies-row {
    grid-template-columns: 1fr;
  }

  .why-carter-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .coverage-layout {
    grid-template-columns: 1fr;
  }

  .cta-cards {
    grid-template-columns: 1fr;
    max-width: 400px;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }

  .contact-sidebar {
    position: static;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-brand {
    max-width: 100%;
    text-align: center;
  }

  .footer-certifications {
    align-items: center;
  }

  .footer-nav {
    grid-template-columns: repeat(2, 1fr);
    text-align: center;
  }
}

/* ============================================================
   RESPONSIVE — MOBILE (max-width: 768px)
   ============================================================ */
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  /* Navigation mobile */
  .nav-menu {
    display: none;
  }

  .nav-menu.open {
    display: flex;
    position: fixed;
    inset: var(--nav-height) 0 0 0;
    background: var(--bg-body);
    z-index: 999;
    overflow-y: auto;
    padding: 24px;
  }

  .nav-menu.open ul {
    flex-direction: column;
    width: 100%;
    gap: 4px;
  }

  .nav-menu.open a {
    padding: 14px 16px;
    font-size: 1rem;
    border-radius: var(--radius-md);
  }

  .nav-menu.open a:hover {
    background: var(--bg-card);
  }

  .nav-menu.open .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 0 0 0 20px;
    backdrop-filter: none;
  }

  .hamburger {
    display: flex;
  }

  .btn-nav-cta {
    display: none;
  }

  /* Hero mobile */
  .hero {
    min-height: 90vh;
  }

  .hero h1 {
    font-size: clamp(2rem, 6vw, 2.8rem);
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero-trust-bar {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .hero-gradient-line {
    width: 140px;
  }

  /* Sections mobile */
  .process-section,
  .tools-section,
  .products-section,
  .applications-section,
  .industries-section,
  .documentation-section,
  .services-section,
  .case-studies-section,
  .why-carter,
  .coverage-section,
  .contact-section {
    padding: 80px 0;
  }

  .section-header {
    margin-bottom: 36px;
  }

  h2 {
    font-size: clamp(1.5rem, 4vw, 1.8rem);
  }

  .section-desc {
    font-size: 0.92rem;
  }

  /* Process mobile */
  .process-step-image {
    height: 180px;
  }

  /* Forms mobile */
  .form-row,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .app-specs {
    grid-template-columns: 1fr;
  }

  /* Products mobile */
  .products-grid {
    grid-template-columns: 1fr;
  }

  .product-card {
    min-height: auto;
  }

  .product-card-image {
    height: 220px;
    min-height: 220px;
  }

  /* Tabs mobile */
  .tab-nav {
    flex-wrap: nowrap;
    padding: 12px 16px;
    gap: 8px;
  }

  .tab-btn {
    padding: 8px 16px;
    font-size: 0.8rem;
  }

  .tab-content {
    padding: 24px;
  }

  /* Industries mobile */
  .industry-wide-card-content {
    padding: 24px;
  }

  /* Doc mobile */
  .doc-search-bar {
    flex-direction: column;
  }

  .doc-card {
    flex-wrap: wrap;
    gap: 10px;
    padding: 16px;
  }

  .doc-info {
    flex: 1 1 calc(100% - 56px);
  }

  .doc-card .btn {
    width: 100%;
    justify-content: center;
    margin-top: 4px;
  }

  /* Services mobile */
  .services-grid {
    grid-template-columns: 1fr;
  }

  /* Case studies mobile */
  .case-study-hero-image {
    height: 220px;
  }

  .case-study-hero-content {
    padding: 24px;
  }

  .case-metrics {
    gap: 20px;
  }

  .metric-value {
    font-size: 1.3rem;
  }

  /* Why Carter mobile */
  .credibility-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .cred-number {
    font-size: 1.8rem;
  }

  /* Coverage mobile */
  .map-placeholder {
    min-height: 360px;
  }

  .map-overlay-content {
    padding: 40px 20px;
    min-height: 360px;
  }

  /* CTA mobile */
  .cta-cards {
    grid-template-columns: 1fr;
    max-width: 100%;
  }

  /* Contact mobile */
  .contact-form {
    padding: 24px;
  }

  /* Footer mobile */
  .footer-nav {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  /* Back to top mobile */
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    font-size: 1rem;
  }
}

/* ============================================================
   RESPONSIVE — SMALL MOBILE (max-width: 480px)
   ============================================================ */
@media (max-width: 480px) {
  .emergency-inner {
    font-size: 0.78rem;
    gap: 10px;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero-badge {
    font-size: 0.65rem;
    padding: 5px 14px;
  }

  .hero-trust-bar {
    gap: 10px;
  }

  .trust-item {
    font-size: 0.76rem;
  }

  .process-step-image {
    height: 160px;
  }

  .product-card-image {
    height: 200px;
    min-height: 200px;
  }

  .industry-wide-card-image {
    height: 200px;
  }

  .service-card-image {
    height: 150px;
  }

  .case-study-hero-image {
    height: 180px;
  }

  .case-study-card-image {
    height: 180px;
  }

  .credibility-grid {
    grid-template-columns: 1fr;
  }

  .cred-item {
    padding: 18px 16px;
  }

  .footer-nav {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .tab-btn {
    padding: 7px 14px;
    font-size: 0.75rem;
  }

  .cta-card {
    padding: 28px 20px;
  }

  .map-search {
    flex-direction: column;
  }

  .map-search input,
  .map-search .btn {
    width: 100%;
  }
}

/* ============================================================
   UTILITY / MISCELLANEOUS
   ============================================================ */

/* Blue accent for small details */
.blue-accent {
  color: var(--blue);
}

/* Subtle pulse for emergency elements */
@keyframes pulseGold {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(236, 170, 35, 0.3);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(236, 170, 35, 0);
  }
}

.sidebar-card:first-child {
  border-left: 3px solid var(--gold);
}

/* Focus-visible for accessibility */
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* Smooth image loading */
img {
  opacity: 1;
  transition: opacity 0.3s ease;
}

img[loading="lazy"] {
  opacity: 0;
}

img[loading="lazy"].loaded,
img[loading="lazy"][src] {
  opacity: 1;
}

/* Print styles */
@media print {
  .emergency-banner,
  .navbar,
  .back-to-top,
  .hero-bg {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }

  .container {
    max-width: 100%;
  }
}