/* ==========================================================================
   Comfort Air Solutions - Modern HVAC & Refrigeration Website Stylesheet
   Brand Colors:
   - Primary Blue: #0B5FA5
   - Deep Blue: #083B66
   - Accent Orange: #F47C20
   - Light Blue: #EAF5FC
   - Background: #F7F9FB
   - White: #FFFFFF
   - Dark Text: #17212B
   ========================================================================== */

:root {
  --primary-blue: #0B5FA5;
  --primary-blue-hover: #094e88;
  --deep-blue: #083B66;
  --deep-blue-dark: #052642;
  --accent-orange: #F47C20;
  --accent-orange-hover: #dc6911;
  --accent-orange-subtle: rgba(244, 124, 32, 0.12);
  --light-blue: #EAF5FC;
  --light-blue-surface: #F0F8FD;
  --background: #F7F9FB;
  --white: #FFFFFF;
  --dark-text: #17212B;
  --muted-text: #5A6A7E;
  --border-color: #E2E8F0;
  --border-focus: #0B5FA5;
  --shadow-sm: 0 2px 6px rgba(8, 59, 102, 0.05);
  --shadow-md: 0 6px 18px rgba(8, 59, 102, 0.08);
  --shadow-lg: 0 16px 36px rgba(8, 59, 102, 0.12);
  --shadow-orange: 0 8px 20px rgba(244, 124, 32, 0.28);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --container-max: 1200px;
}

/* Base & Reset */
*, *::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-main);
  background-color: var(--background);
  color: var(--dark-text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

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

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  color: var(--deep-blue);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(1.85rem, 3.2vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
}

p {
  color: var(--muted-text);
  font-size: 1.05rem;
  line-height: 1.65;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Section Header Utility */
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary-blue);
  background-color: var(--light-blue);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.section-tag.orange {
  color: var(--accent-orange);
  background-color: var(--accent-orange-subtle);
}

.section-tag.light {
  color: #FFFFFF;
  background-color: rgba(255, 255, 255, 0.15);
}

.section-title {
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--muted-text);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent-orange);
  color: var(--white);
  box-shadow: var(--shadow-orange);
}

.btn-primary:hover {
  background-color: var(--accent-orange-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(244, 124, 32, 0.35);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: var(--white);
  color: var(--primary-blue);
  border-color: var(--light-blue);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--light-blue);
  color: var(--deep-blue);
  border-color: var(--primary-blue);
  transform: translateY(-2px);
}

.btn-outline-white {
  background-color: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-outline-white:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-phone {
  background-color: var(--light-blue);
  color: var(--deep-blue);
  font-weight: 600;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid rgba(11, 95, 165, 0.15);
}

.btn-phone:hover {
  background-color: #dceefb;
  color: var(--primary-blue);
}

.btn-sm {
  padding: 0.55rem 1.15rem;
  font-size: 0.9rem;
}

.btn-card {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--primary-blue);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.5rem 0;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

.btn-card:hover {
  color: var(--accent-orange);
  border-bottom-color: var(--accent-orange);
}

.btn-card svg {
  transition: transform 0.2s ease;
}

.btn-card:hover svg {
  transform: translateX(4px);
}

/* ==========================================================================
   Top Notification / Announcement Bar
   ========================================================================== */
.top-bar {
  background-color: var(--deep-blue-dark);
  color: #D1E5F7;
  font-size: 0.85rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.top-bar-left, .top-bar-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.top-bar-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.top-bar-item svg {
  color: var(--accent-orange);
}

.top-bar-badge {
  background-color: rgba(244, 124, 32, 0.2);
  color: #FFAE6B;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

/* ==========================================================================
   Header & Sticky Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.site-header.is-scrolled {
  box-shadow: 0 4px 20px rgba(8, 59, 102, 0.08);
  background-color: rgba(255, 255, 255, 0.98);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  gap: 1.25rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo-img {
  height: 46px;
  width: auto;
  max-width: 240px;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: clamp(0.75rem, 1.6vw, 1.75rem);
  margin: 0;
  padding: 0;
  white-space: nowrap;
}

.nav-link {
  font-weight: 600;
  font-size: 0.94rem;
  color: var(--dark-text);
  position: relative;
  padding: 0.4rem 0;
  white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary-blue);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--primary-blue);
  transition: width 0.2s ease;
}

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

.header-cta-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.hamburger-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.45rem;
  color: var(--deep-blue);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.hamburger-btn:hover {
  background-color: var(--light-blue);
  color: var(--primary-blue);
}

/* Mobile Navigation Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 82%;
  max-width: 380px;
  height: 100vh;
  background-color: var(--white);
  z-index: 2000;
  box-shadow: -10px 0 30px rgba(8, 59, 102, 0.2);
  transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

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

.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(8, 59, 102, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease;
}

.mobile-nav-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1.5rem;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.mobile-nav-link {
  display: block;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--deep-blue);
  padding: 0.75rem 0.5rem;
  border-radius: var(--radius-sm);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  color: var(--primary-blue);
  background-color: var(--light-blue);
}

.mobile-nav-cta {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: auto;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  padding: 4.5rem 0 5rem 0;
  background: linear-gradient(180deg, #FFFFFF 0%, var(--background) 100%);
  overflow: hidden;
}

.hero-bg-decoration {
  position: absolute;
  top: -150px;
  right: -100px;
  width: 650px;
  height: 650px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(11, 95, 165, 0.08) 0%, rgba(234, 245, 252, 0.01) 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.95fr;
  align-items: center;
  gap: 3.5rem;
  position: relative;
  z-index: 1;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary-blue);
  background-color: var(--light-blue);
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
  border: 1px solid rgba(11, 95, 165, 0.15);
}

.hero-title {
  margin-bottom: 1.25rem;
  color: var(--deep-blue);
  line-height: 1.18;
}

.hero-title-highlight {
  color: var(--primary-blue);
  position: relative;
  display: inline-block;
}

.hero-desc {
  font-size: 1.18rem;
  color: var(--muted-text);
  margin-bottom: 2rem;
  max-width: 580px;
  line-height: 1.6;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.25rem;
}

.hero-trust-statement {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  background-color: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--deep-blue);
  box-shadow: var(--shadow-sm);
}

.hero-trust-dot {
  width: 6px;
  height: 6px;
  background-color: var(--accent-orange);
  border-radius: 50%;
}

/* Hero Visual / Right Column */
.hero-image-wrapper {
  position: relative;
}

.hero-main-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 6px solid var(--white);
  background-color: var(--white);
}

.hero-main-card img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.hero-main-card:hover img {
  transform: scale(1.02);
}

/* Floating Badges on Hero Image */
.hero-badge-cooling {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(8, 59, 102, 0.92);
  color: var(--white);
  backdrop-filter: blur(8px);
  padding: 0.75rem 1.2rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-badge-cooling svg {
  color: #60B7FF;
}

.hero-badge-service {
  position: absolute;
  bottom: -1.5rem;
  left: -1.5rem;
  background-color: var(--white);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  box-shadow: 0 12px 30px rgba(8, 59, 102, 0.16);
  display: flex;
  align-items: center;
  gap: 1rem;
  border: 1px solid var(--border-color);
  max-width: 320px;
}

.hero-badge-icon {
  width: 48px;
  height: 48px;
  background-color: var(--accent-orange-subtle);
  color: var(--accent-orange);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.hero-badge-text h4 {
  font-size: 1rem;
  margin-bottom: 0.15rem;
}

.hero-badge-text p {
  font-size: 0.82rem;
  margin: 0;
  color: var(--muted-text);
}

/* ==========================================================================
   Quick Service Highlights Strip (Section 9)
   ========================================================================== */
.quick-services-section {
  padding: 2.5rem 0;
  background-color: var(--white);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  position: relative;
  z-index: 10;
}

.quick-services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
}

.quick-service-item {
  display: flex;
  align-items: flex-start;
  gap: 1.1rem;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background-color: var(--background);
  transition: var(--transition);
  border: 1px solid transparent;
}

.quick-service-item:hover {
  background-color: var(--light-blue);
  border-color: rgba(11, 95, 165, 0.15);
  transform: translateY(-3px);
}

.quick-service-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background-color: var(--white);
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.quick-service-item:hover .quick-service-icon {
  background-color: var(--primary-blue);
  color: var(--white);
}

.quick-service-content h3 {
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
  color: var(--deep-blue);
}

.quick-service-content p {
  font-size: 0.88rem;
  line-height: 1.45;
  margin: 0;
}

/* ==========================================================================
   Services Section (Section 10)
   ========================================================================== */
.services-section {
  padding: 6rem 0;
  background-color: var(--background);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(11, 95, 165, 0.25);
}

.service-card-media {
  position: relative;
  height: 200px;
  overflow: hidden;
  background-color: var(--light-blue);
}

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

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

.service-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background-color: rgba(8, 59, 102, 0.88);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
  backdrop-filter: blur(4px);
}

.service-badge.orange {
  background-color: var(--accent-orange);
}

.service-card-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-card-icon-wrap {
  width: 48px;
  height: 48px;
  background-color: var(--light-blue);
  color: var(--primary-blue);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: -2.75rem;
  margin-bottom: 1.15rem;
  position: relative;
  z-index: 2;
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--white);
}

.service-card:hover .service-card-icon-wrap {
  background-color: var(--primary-blue);
  color: var(--white);
}

.service-card-title {
  font-size: 1.3rem;
  margin-bottom: 0.6rem;
  color: var(--deep-blue);
}

.service-card-lead {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: 0.65rem;
  line-height: 1.4;
}

.service-card-desc {
  font-size: 0.92rem;
  color: var(--muted-text);
  line-height: 1.55;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.service-card-action {
  margin-top: auto;
  border-top: 1px solid #F0F4F8;
  padding-top: 1rem;
}

/* ==========================================================================
   Featured Service CTA Banner (Section 11)
   ========================================================================== */
.featured-cta-section {
  padding: 4.5rem 0;
  position: relative;
  background: linear-gradient(135deg, var(--deep-blue) 0%, var(--primary-blue) 100%);
  color: var(--white);
  overflow: hidden;
}

.featured-cta-bg-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.08;
  background-image: radial-gradient(#FFFFFF 1.5px, transparent 1.5px);
  background-size: 24px 24px;
}

.featured-cta-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
}

.featured-cta-content {
  max-width: 680px;
}

.featured-cta-content h2 {
  color: var(--white);
  margin-bottom: 0.85rem;
}

.featured-cta-content p {
  color: #D3E6F7;
  font-size: 1.15rem;
  margin: 0;
}

.featured-cta-action {
  flex-shrink: 0;
}

/* ==========================================================================
   About Section (Section 12)
   ========================================================================== */
.about-section {
  padding: 6.5rem 0;
  background-color: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  align-items: center;
  gap: 4.5rem;
}

.about-visual {
  position: relative;
}

.about-image-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 5px solid var(--white);
}

.about-image-card img {
  width: 100%;
  height: 480px;
  object-fit: cover;
}

.about-badge-card {
  position: absolute;
  bottom: -1.75rem;
  right: -1.5rem;
  background-color: var(--deep-blue);
  color: var(--white);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 280px;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.about-badge-card h4 {
  color: #FFFFFF;
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.about-badge-card p {
  color: #B8D6F2;
  font-size: 0.85rem;
  margin: 0;
  line-height: 1.45;
}

.about-content .section-tag {
  margin-bottom: 1rem;
}

.about-title {
  margin-bottom: 1.5rem;
}

.about-quote {
  font-size: 1.15rem;
  color: var(--deep-blue);
  font-weight: 600;
  line-height: 1.6;
  margin-bottom: 1.25rem;
  padding-left: 1.25rem;
  border-left: 3px solid var(--accent-orange);
}

.about-desc {
  font-size: 1.02rem;
  margin-bottom: 2rem;
  color: var(--muted-text);
}

.about-check-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2.25rem;
}

.about-check-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--deep-blue);
}

.about-check-item svg {
  color: var(--primary-blue);
  flex-shrink: 0;
}

/* ==========================================================================
   Why Choose Us Section (Section 13)
   ========================================================================== */
.why-us-section {
  padding: 6rem 0;
  background-color: var(--background);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
}

.feature-card {
  background-color: var(--white);
  padding: 2.25rem 1.75rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(11, 95, 165, 0.3);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background-color: var(--light-blue);
  color: var(--primary-blue);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background-color: var(--accent-orange);
  color: var(--white);
}

.feature-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--muted-text);
  line-height: 1.6;
}

/* ==========================================================================
   Service Process Section (Section 14)
   ========================================================================== */
.process-section {
  padding: 6.5rem 0;
  background-color: var(--white);
}

.process-steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  position: relative;
}

/* Process connector line */
.process-steps-grid::before {
  content: '';
  position: absolute;
  top: 42px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: dashed 2px #CBD5E1;
  background-size: 8px 2px;
  z-index: 0;
}

.process-step {
  position: relative;
  z-index: 1;
  text-align: center;
}

.process-step-badge {
  width: 84px;
  height: 84px;
  margin: 0 auto 1.5rem auto;
  border-radius: 50%;
  background-color: var(--white);
  border: 3px solid var(--light-blue);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary-blue);
  transition: var(--transition);
}

.process-step:hover .process-step-badge {
  border-color: var(--accent-orange);
  color: var(--accent-orange);
  transform: scale(1.08);
}

.process-step-title {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.process-step-desc {
  font-size: 0.92rem;
  color: var(--muted-text);
  line-height: 1.55;
  padding: 0 0.5rem;
}

/* ==========================================================================
   Trust / Statistics Qualitative Section (Section 16)
   ========================================================================== */
.trust-points-section {
  padding: 3.5rem 0;
  background: linear-gradient(180deg, var(--deep-blue-dark) 0%, var(--deep-blue) 100%);
  color: var(--white);
}

.trust-points-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.trust-point-card {
  text-align: center;
  padding: 1.5rem;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.trust-point-card:last-child {
  border-right: none;
}

.trust-point-icon {
  width: 52px;
  height: 52px;
  background-color: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem auto;
  color: var(--accent-orange);
}

.trust-point-title {
  color: #FFFFFF;
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.trust-point-desc {
  color: #A9CCE9;
  font-size: 0.88rem;
  line-height: 1.45;
  margin: 0;
}

/* ==========================================================================
   Service Areas Section (Section 15)
   ========================================================================== */
.service-areas-section {
  padding: 6rem 0;
  background-color: var(--background);
}

.service-areas-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 3.5rem;
}

.service-areas-content h2 {
  margin-bottom: 1rem;
}

.service-areas-content p {
  margin-bottom: 1.85rem;
}

.placeholder-areas-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.placeholder-area-card {
  background-color: var(--white);
  padding: 1.1rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  box-shadow: var(--shadow-sm);
}

.placeholder-area-card svg {
  color: var(--primary-blue);
  flex-shrink: 0;
}

.placeholder-area-text strong {
  display: block;
  font-size: 0.98rem;
  color: var(--deep-blue);
}

.placeholder-area-text span {
  font-size: 0.8rem;
  color: var(--muted-text);
  font-family: monospace;
}

/* Interactive Service Availability Checker Box */
.availability-checker-box {
  background-color: var(--white);
  padding: 2.25rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

.availability-checker-box h3 {
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.availability-checker-box p {
  font-size: 0.92rem;
  margin-bottom: 1.5rem;
}

.checker-form {
  display: flex;
  gap: 0.75rem;
}

.checker-input {
  flex-grow: 1;
  padding: 0.85rem 1.15rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.checker-input:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(11, 95, 165, 0.15);
}

.checker-status-feedback {
  margin-top: 1rem;
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  display: none;
}

.checker-status-feedback.is-visible {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.checker-status-feedback.available {
  background-color: #E8F5E9;
  color: #2E7D32;
  border: 1px solid #C8E6C9;
}

/* ==========================================================================
   Testimonial Placeholder Section (Section 17)
   ========================================================================== */
.testimonials-section {
  padding: 6.5rem 0;
  background-color: var(--white);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.testimonial-card {
  background-color: var(--background);
  border: 1px dashed #B8D6F2;
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-blue);
  background-color: #F3F8FC;
}

.testimonial-mockup-badge {
  align-self: flex-start;
  background-color: var(--light-blue);
  color: var(--primary-blue);
  border: 1px solid rgba(11, 95, 165, 0.2);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
}

.testimonial-stars {
  display: flex;
  gap: 0.25rem;
  color: #FFAE00;
  margin-bottom: 1rem;
}

.testimonial-text {
  font-style: italic;
  font-size: 0.96rem;
  color: var(--muted-text);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: #D1E5F7;
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
}

.testimonial-meta h4 {
  font-size: 0.95rem;
  color: var(--deep-blue);
  margin-bottom: 0.1rem;
}

.testimonial-meta p {
  font-size: 0.8rem;
  color: var(--muted-text);
  margin: 0;
}

/* ==========================================================================
   FAQ Section (Section 18)
   ========================================================================== */
.faq-section {
  padding: 6.5rem 0;
  background-color: var(--background);
}

.faq-container {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background-color: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 1.1rem;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.is-open {
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-sm);
}

.faq-question-btn {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 1.35rem 1.75rem;
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--deep-blue);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: var(--transition);
}

.faq-question-btn:hover {
  color: var(--primary-blue);
}

.faq-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--light-blue);
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.faq-item.is-open .faq-icon {
  transform: rotate(180deg);
  background-color: var(--primary-blue);
  color: var(--white);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-answer-inner {
  padding: 0 1.75rem 1.5rem 1.75rem;
  font-size: 0.98rem;
  color: var(--muted-text);
  line-height: 1.65;
}

/* ==========================================================================
   Contact / Request a Quote Form Section (Section 19)
   ========================================================================== */
.contact-section {
  padding: 6.5rem 0;
  background-color: var(--white);
  position: relative;
}

.contact-layout-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem;
  align-items: flex-start;
}

.contact-form-card {
  background-color: var(--background);
  padding: 2.75rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

.form-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--deep-blue);
  margin-bottom: 0.45rem;
}

.form-label span.req {
  color: var(--accent-orange);
}

.form-control {
  width: 100%;
  padding: 0.85rem 1.1rem;
  font-size: 0.98rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--white);
  color: var(--dark-text);
  outline: none;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(11, 95, 165, 0.15);
}

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

.form-error {
  color: #D32F2F;
  font-size: 0.82rem;
  margin-top: 0.35rem;
  display: none;
}

/* Contact Info Column beside form */
.contact-info-panel {
  background: linear-gradient(145deg, var(--deep-blue) 0%, var(--primary-blue) 100%);
  color: var(--white);
  padding: 2.75rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.contact-info-panel h3 {
  color: #FFFFFF;
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
}

.contact-info-panel p.intro {
  color: #D3E6F7;
  font-size: 0.98rem;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.contact-detail-items {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.contact-detail-row {
  display: flex;
  align-items: flex-start;
  gap: 1.1rem;
}

.contact-detail-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: rgba(255, 255, 255, 0.12);
  color: var(--accent-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-detail-text h4 {
  color: #FFFFFF;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.2rem;
}

.contact-detail-text p {
  color: #EAF5FC;
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0;
}

.placeholder-tag {
  background: rgba(244, 124, 32, 0.25);
  color: #FFAE6B;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-family: monospace;
}

.business-hours-box {
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.business-hours-box h5 {
  color: #FFFFFF;
  font-size: 0.92rem;
  margin-bottom: 0.4rem;
}

.business-hours-box p {
  color: #C3DFFA;
  font-size: 0.88rem;
  margin: 0;
}

/* ==========================================================================
   Final Conversion CTA (Section 20)
   ========================================================================== */
.final-cta-section {
  padding: 6.5rem 0;
  background: linear-gradient(135deg, var(--deep-blue-dark) 0%, var(--deep-blue) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.final-cta-bg-fx {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, rgba(11, 95, 165, 0.2) 0%, rgba(8, 59, 102, 0) 70%);
  pointer-events: none;
}

.final-cta-box {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin: 0 auto;
}

.final-cta-box h2 {
  color: #FFFFFF;
  font-size: clamp(2rem, 3.8vw, 2.85rem);
  margin-bottom: 1.25rem;
}

.final-cta-box p {
  color: #D3E6F7;
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.final-cta-buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

/* ==========================================================================
   Footer (Section 21)
   ========================================================================== */
.site-footer {
  background-color: #051A2E;
  color: #A3B8CC;
  padding: 5rem 0 2rem 0;
  font-size: 0.95rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3.5rem;
  margin-bottom: 4rem;
}

.footer-col-1 .footer-logo {
  margin-bottom: 1.25rem;
  display: inline-block;
}

.footer-col-1 p {
  color: #8CA4BC;
  font-size: 0.92rem;
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

.footer-heading {
  color: #FFFFFF;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.35rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-heading::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: var(--accent-orange);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: #A3B8CC;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.footer-links a:hover {
  color: var(--white);
  transform: translateX(4px);
}

.footer-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.footer-contact-item svg {
  color: var(--accent-orange);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.88rem;
  color: #6D849B;
}

.footer-legal-links {
  display: flex;
  gap: 1.5rem;
}

.footer-legal-links a {
  color: #6D849B;
}

.footer-legal-links a:hover {
  color: #FFFFFF;
}

/* ==========================================================================
   Interactive Quote Modal
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(8, 59, 102, 0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

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

.modal-dialog {
  background-color: var(--white);
  width: 100%;
  max-width: 620px;
  border-radius: var(--radius-xl);
  box-shadow: 0 25px 60px rgba(8, 59, 102, 0.3);
  overflow: hidden;
  transform: translateY(20px) scale(0.97);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

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

.modal-header {
  padding: 1.5rem 2rem;
  background-color: var(--deep-blue);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  color: #FFFFFF;
  font-size: 1.35rem;
  margin: 0;
}

.modal-close-btn {
  background: none;
  border: none;
  color: #FFFFFF;
  cursor: pointer;
  padding: 0.35rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.modal-close-btn:hover {
  opacity: 1;
}

.modal-body {
  padding: 2rem;
  overflow-y: auto;
}

/* Success Confirmation Popup */
.success-card {
  text-align: center;
  padding: 2rem 1rem;
}

.success-icon {
  width: 64px;
  height: 64px;
  background-color: #E8F5E9;
  color: #2E7D32;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem auto;
}

.success-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.success-card p {
  color: var(--muted-text);
  margin-bottom: 1.5rem;
}

/* Floating Action / Back to top */
.floating-contact-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 990;
  background-color: var(--accent-orange);
  color: var(--white);
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(244, 124, 32, 0.4);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.floating-contact-btn:hover {
  transform: scale(1.1);
  background-color: var(--accent-orange-hover);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1220px) {
  .nav-menu {
    gap: 1.1rem;
  }
  .nav-link {
    font-size: 0.9rem;
  }
  .site-header .btn-phone {
    display: none;
  }
}

@media (max-width: 1080px) {
  .site-header .btn-phone {
    display: none;
  }

  .nav-menu {
    display: none !important;
  }

  .hamburger-btn {
    display: flex !important;
    align-items: center;
    justify-content: center;
  }

  .header-cta-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  .header-cta-group .btn-primary {
    display: inline-flex !important;
    padding: 0.6rem 1.15rem;
    font-size: 0.9rem;
  }
}

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .hero-main-card img {
    height: 420px;
  }

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

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

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

  .process-steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }

  .process-steps-grid::before {
    display: none;
  }

  .trust-points-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }

  .trust-point-card {
    border-right: none;
  }

  .service-areas-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .top-bar-left, .top-bar-right {
    font-size: 0.8rem;
  }
  
  .top-bar-right {
    display: none;
  }

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

  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .about-badge-card {
    right: 1rem;
    bottom: -1rem;
  }

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

  .process-steps-grid {
    grid-template-columns: 1fr;
  }

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

  .quick-services-grid {
    grid-template-columns: 1fr;
  }

  .featured-cta-inner {
    flex-direction: column;
    text-align: center;
    gap: 1.75rem;
  }

  .form-grid-2 {
    grid-template-columns: 1fr;
  }

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

  .hero-badge-service {
    position: static;
    margin-top: 1rem;
    max-width: 100%;
  }

  .hero-main-card img {
    height: 320px;
  }

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

  .contact-form-card {
    padding: 1.75rem;
  }
}

@media (max-width: 520px) {
  .nav-container {
    height: 68px;
  }

  .brand-logo-img {
    height: 38px;
    max-width: 175px;
  }

  .header-cta-group {
    gap: 0.45rem;
  }

  .header-cta-group .btn-primary {
    padding: 0.45rem 0.85rem;
    font-size: 0.82rem;
  }

  .hamburger-btn {
    padding: 0.35rem;
  }
}

@media (max-width: 360px) {
  .header-cta-group .btn-primary {
    display: none !important;
  }
}