/* ============================================================
   CLIMORA HVAC SOLUTIONS - COMPREHENSIVE STYLESHEET
   Mobile-First, WCAG AA Compliant, High-Performance CSS3
   ============================================================ */

/* 1. CSS VARIABLES & THEME TOKENS */
:root {
  /* Brand Palette */
  --color-navy: #102A43;
  --color-navy-dark: #0B1C2D;
  --color-navy-light: #1A3F65;
  --color-cyan: #12CFE3;
  --color-cyan-hover: #0EB6C7;
  --color-cyan-light: #E5F9FC;
  --color-coral: #FF5E57;
  --color-coral-hover: #E84D46;
  --color-coral-light: #FFF0EF;
  --color-bg-soft: #F3FAFC;
  --color-white: #FFFFFF;
  --color-text-dark: #172B3A;
  --color-text-muted: #486581;
  --color-border: #D9E2EC;
  --color-border-focus: #12CFE3;
  --color-card-border: rgba(18, 207, 227, 0.18);

  /* Typography */
  --font-heading: 'Sora', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4.5rem;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(16, 42, 67, 0.06);
  --shadow-md: 0 6px 16px rgba(16, 42, 67, 0.08);
  --shadow-lg: 0 12px 28px rgba(16, 42, 67, 0.12);
  --shadow-card: 0 4px 20px rgba(16, 42, 67, 0.07);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  /* Layout */
  --max-width: 1200px;
  --header-height: 76px;
  --header-height-scrolled: 64px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

/* 2. BASE & RESET */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-dark);
  background-color: var(--color-white);
  overflow-x: hidden;
  padding-bottom: 70px; /* Safe cushion for mobile floating call button */
}

@media (min-width: 992px) {
  body {
    padding-bottom: 0;
  }
}

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

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

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

ul, ol {
  list-style: none;
}

/* 3. ACCESSIBILITY: SKIP LINK & FOCUS INDICATORS */
.skip-to-content {
  position: absolute;
  top: -100px;
  left: var(--space-md);
  z-index: 10000;
  background: var(--color-cyan);
  color: var(--color-navy);
  font-weight: 700;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: top var(--transition-fast);
}

.skip-to-content:focus {
  top: var(--space-md);
  outline: 3px solid var(--color-navy);
}

:focus-visible {
  outline: 3px solid var(--color-cyan);
  outline-offset: 3px;
}

/* 4. LAYOUT UTILITIES */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--space-xl);
    padding-right: var(--space-xl);
  }
}

.section {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
}

.section-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-cyan);
  background: rgba(18, 207, 227, 0.12);
  padding: 0.25rem 0.875rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-sm);
}

.section-header {
  margin-bottom: var(--space-2xl);
}

.section-header.text-center {
  text-align: center;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.85rem, 3.5vw + 0.5rem, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-navy);
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  font-size: clamp(1rem, 0.4vw + 0.9rem, 1.15rem);
  color: var(--color-text-muted);
}

/* 5. BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: all var(--transition-normal);
  line-height: 1.2;
}

.btn-lg {
  padding: 0.9rem 1.8rem;
  font-size: 1.05rem;
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-coral {
  background-color: var(--color-coral);
  color: var(--color-white);
  border-color: var(--color-coral);
  box-shadow: 0 4px 14px rgba(255, 94, 87, 0.35);
}

.btn-coral:hover, .btn-coral:focus-visible {
  background-color: var(--color-coral-hover);
  border-color: var(--color-coral-hover);
  box-shadow: 0 6px 18px rgba(255, 94, 87, 0.45);
  transform: translateY(-1px);
}

.btn-primary {
  background-color: var(--color-cyan);
  color: var(--color-navy);
  border-color: var(--color-cyan);
}

.btn-primary:hover, .btn-primary:focus-visible {
  background-color: var(--color-cyan-hover);
  border-color: var(--color-cyan-hover);
  transform: translateY(-1px);
}

.btn-outline-light {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.35);
}

.btn-outline-light:hover, .btn-outline-light:focus-visible {
  background-color: rgba(255, 255, 255, 0.12);
  border-color: var(--color-white);
}

.btn-outline-primary {
  background-color: transparent;
  color: var(--color-navy);
  border-color: var(--color-navy);
}

.btn-outline-primary:hover, .btn-outline-primary:focus-visible {
  background-color: var(--color-navy);
  color: var(--color-white);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-navy);
  font-size: 1rem;
  border-bottom: 2px solid var(--color-cyan);
  padding-bottom: 2px;
  transition: all var(--transition-fast);
}

.link-arrow:hover {
  color: var(--color-coral);
  border-color: var(--color-coral);
  transform: translateX(3px);
}

/* 6. FIXED HEADER */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--color-navy);
  z-index: 1000;
  transition: all var(--transition-normal);
  border-bottom: 1px solid rgba(18, 207, 227, 0.15);
}

.site-header.scrolled {
  height: var(--header-height-scrolled);
  background-color: rgba(16, 42, 67, 0.96);
  backdrop-filter: blur(8px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

@media (min-width: 768px) {
  .header-container {
    padding: 0 var(--space-xl);
  }
}

.brand-link {
  display: flex;
  align-items: center;
}

.brand-logo {
  height: 48px;
  width: auto;
  object-fit: contain;
  transition: height var(--transition-fast);
}

.site-header.scrolled .brand-logo {
  height: 42px;
}

.main-nav {
  display: none;
}

@media (min-width: 992px) {
  .main-nav {
    display: block;
  }
  .nav-list {
    display: flex;
    align-items: center;
    gap: 1.75rem;
  }
  .nav-link {
    color: #E2E8F0;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
  }
  .nav-link:hover, .nav-link:focus-visible {
    color: var(--color-cyan);
  }
  .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-cyan);
    transition: width var(--transition-fast);
  }
  .nav-link:hover::after {
    width: 100%;
  }
}

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

.header-phone-cta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(18, 207, 227, 0.3);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-md);
  color: var(--color-white);
  transition: all var(--transition-fast);
}

.header-phone-cta:hover {
  background: rgba(18, 207, 227, 0.15);
  border-color: var(--color-cyan);
}

.phone-badge {
  background-color: var(--color-coral);
  color: var(--color-white);
  font-size: 0.7rem;
  font-weight: 800;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

.phone-text {
  display: flex;
  flex-direction: column;
}

.phone-label {
  font-size: 0.7rem;
  color: var(--color-cyan);
  text-transform: uppercase;
  font-weight: 700;
  line-height: 1;
}

.phone-number {
  font-family: var(--font-heading);
  font-size: 0.925rem;
  font-weight: 700;
  line-height: 1.2;
}

/* Hamburger toggle for mobile */
.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 1010;
}

@media (min-width: 992px) {
  .mobile-menu-toggle {
    display: none;
  }
}

.hamburger-bar {
  width: 100%;
  height: 3px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Drawer */
.mobile-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-navy);
  padding: var(--space-xl) var(--space-md);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  overflow-y: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.mobile-nav-link {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-white);
  display: block;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-nav-link:hover, .mobile-nav-link:focus-visible {
  color: var(--color-cyan);
}

.mobile-menu-footer {
  margin-top: auto;
  padding-top: var(--space-xl);
}

/* 7. HERO SECTION */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, #0B1C2D 0%, #102A43 55%, #0F385C 100%);
  color: var(--color-white);
  padding-top: calc(var(--header-height) + var(--space-3xl));
  padding-bottom: var(--space-3xl);
  overflow: hidden;
}

.hero-backdrop {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: radial-gradient(circle at 80% 20%, rgba(18, 207, 227, 0.14) 0%, transparent 60%),
              radial-gradient(circle at 20% 80%, rgba(255, 94, 87, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.hero-container {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

@media (min-width: 992px) {
  .hero-container {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(18, 207, 227, 0.15);
  border: 1px solid rgba(18, 207, 227, 0.35);
  color: var(--color-cyan);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-cyan);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.25rem, 5vw + 0.5rem, 3.85rem);
  font-weight: 800;
  line-height: 1.12;
  color: var(--color-white);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.02em;
}

.hero-supporting {
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 2vw + 0.5rem, 1.6rem);
  font-weight: 600;
  color: var(--color-cyan);
  margin-bottom: var(--space-md);
  line-height: 1.3;
}

.hero-description {
  font-size: clamp(1rem, 0.4vw + 0.9rem, 1.125rem);
  color: #CBD5E1;
  max-width: 600px;
  margin-bottom: var(--space-xl);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

@media (min-width: 480px) {
  .hero-actions {
    flex-direction: row;
    align-items: center;
  }
}

.hero-trust-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  max-width: 580px;
  margin-bottom: var(--space-lg);
}

@media (min-width: 640px) {
  .hero-trust-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.trust-pill {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.65rem;
  font-size: 0.775rem;
  font-weight: 600;
  color: #E2E8F0;
}

.pill-icon {
  color: var(--color-cyan);
  flex-shrink: 0;
}

.hero-jump {
  margin-top: var(--space-sm);
}

.hero-jump-link {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-cyan);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color var(--transition-fast);
}

.hero-jump-link:hover {
  color: var(--color-white);
}

.hero-visual {
  position: relative;
}

.hero-image-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  border: 2px solid rgba(18, 207, 227, 0.25);
}

.hero-img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.hero-floating-badge {
  position: absolute;
  bottom: var(--space-md);
  left: var(--space-md);
  right: var(--space-md);
  background: rgba(16, 42, 67, 0.94);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(18, 207, 227, 0.4);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.badge-icon {
  font-size: 1.5rem;
}

.hero-floating-badge strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.925rem;
  color: var(--color-white);
}

.hero-floating-badge p {
  font-size: 0.8rem;
  color: var(--color-cyan);
  margin: 0;
}

/* 8. QUICK BENEFITS STRIP */
.benefits-strip {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}

.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .benefits-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.benefit-card {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: var(--space-md);
  background-color: var(--color-bg-soft);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-md);
}

.benefit-icon-box {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background-color: rgba(18, 207, 227, 0.15);
  color: var(--color-navy);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.benefit-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 0.25rem;
}

.benefit-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.45;
}

/* 9. ABOUT US SECTION */
.about-section {
  background-color: var(--color-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

@media (min-width: 992px) {
  .about-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.about-text p {
  margin-bottom: var(--space-md);
  font-size: 1.05rem;
  color: var(--color-text-dark);
}

.about-cta-row {
  margin-top: var(--space-lg);
}

.about-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.about-img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.about-callout-card {
  position: absolute;
  bottom: var(--space-md);
  left: var(--space-md);
  right: var(--space-md);
  background: rgba(16, 42, 67, 0.95);
  color: var(--color-white);
  padding: 1rem;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-cyan);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.callout-number {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-cyan);
}

.callout-label {
  font-size: 0.875rem;
  color: #E2E8F0;
  line-height: 1.35;
}

/* 10. WHY CHOOSE US */
.why-section {
  background-color: var(--color-bg-soft);
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .why-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.why-card {
  background-color: var(--color-white);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.why-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-cyan);
}

.why-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(18, 207, 227, 0.15);
  color: var(--color-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.why-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: var(--space-sm);
}

.why-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* 11. HVAC SERVICE GRID */
.services-section {
  background-color: var(--color-white);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

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

.service-card-highlight {
  border-color: rgba(255, 94, 87, 0.4);
  background: linear-gradient(180deg, #FFFFFF 0%, #FFF5F5 100%);
}

.service-icon-box {
  width: 52px;
  height: 52px;
  background-color: rgba(18, 207, 227, 0.15);
  color: var(--color-navy);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.service-icon-coral {
  background-color: rgba(255, 94, 87, 0.15);
  color: var(--color-coral);
}

.service-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: var(--space-sm);
  line-height: 1.25;
}

.service-desc {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: var(--space-lg);
  flex-grow: 1;
}

.service-link {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-navy);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: auto;
  transition: color var(--transition-fast);
}

.service-link:hover {
  color: var(--color-coral);
}

/* 12. DETAILED SERVICE INFORMATION */
.details-section {
  background-color: var(--color-bg-soft);
}

.details-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
}

.detail-block {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: var(--space-xl);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: center;
  box-shadow: var(--shadow-sm);
  scroll-margin-top: calc(var(--header-height) + 20px);
}

@media (min-width: 992px) {
  .detail-block {
    grid-template-columns: 1.15fr 0.85fr;
    padding: var(--space-2xl);
  }
  .detail-block-reverse {
    grid-template-columns: 0.85fr 1.15fr;
  }
  .detail-block-reverse .detail-content {
    order: 2;
  }
  .detail-block-reverse .detail-media {
    order: 1;
  }
}

.detail-block-highlight {
  border-left: 6px solid var(--color-coral);
  background: linear-gradient(135deg, #FFFFFF 0%, #FFF9F9 100%);
}

.detail-tag {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-cyan);
  display: inline-block;
  margin-bottom: 0.5rem;
}

.detail-tag-coral {
  color: var(--color-coral);
}

.detail-content h3 {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 2vw + 0.5rem, 1.85rem);
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: var(--space-md);
  line-height: 1.25;
}

.detail-content p {
  font-size: 1rem;
  color: var(--color-text-dark);
  margin-bottom: var(--space-md);
}

.symptom-list {
  margin-bottom: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.symptom-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.95rem;
  color: var(--color-text-dark);
}

.symptom-list li::before {
  content: '•';
  position: absolute;
  left: 0.35rem;
  color: var(--color-coral);
  font-weight: 900;
  font-size: 1.25rem;
  line-height: 1;
}

.detail-cta {
  margin-top: var(--space-md);
}

.detail-media {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.detail-img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.detail-info-card, .detail-checklist-card, .comfort-highlight-card {
  background-color: var(--color-bg-soft);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
}

.detail-info-card h4, .detail-checklist-card h4, .comfort-highlight-card h4 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: var(--space-md);
}

.detail-info-card ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.detail-info-card li {
  position: relative;
  padding-left: 1.25rem;
  font-size: 0.925rem;
  color: var(--color-text-muted);
}

.detail-info-card li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-cyan);
  font-weight: bold;
}

.checklist-item {
  font-size: 0.95rem;
  color: var(--color-navy);
  font-weight: 500;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

.checklist-item:last-child {
  border-bottom: none;
}

.emergency-badge-box {
  background: var(--color-navy);
  color: var(--color-white);
  padding: var(--space-xl);
  border-radius: var(--radius-md);
  text-align: center;
  border: 2px solid var(--color-coral);
}

.emergency-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 0.5rem;
}

.emergency-badge-box h4 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.emergency-badge-box p {
  color: #CBD5E1;
  font-size: 0.925rem;
  margin-bottom: var(--space-md);
}

.emergency-phone-link {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-coral);
  display: block;
}

/* 13. EMERGENCY HVAC CTA SECTION */
.emergency-cta-section {
  background-color: var(--color-navy);
  padding: var(--space-3xl) 0;
  position: relative;
  overflow: hidden;
}

.emergency-cta-box {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: center;
}

@media (min-width: 992px) {
  .emergency-cta-box {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.emergency-pill {
  display: inline-block;
  background-color: rgba(255, 94, 87, 0.2);
  border: 1px solid var(--color-coral);
  color: var(--color-coral);
  font-family: var(--font-heading);
  font-size: 0.825rem;
  font-weight: 700;
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.emergency-cta-title {
  font-family: var(--font-heading);
  font-size: clamp(1.85rem, 3.5vw + 0.5rem, 2.75rem);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}

.emergency-cta-desc {
  font-size: 1.1rem;
  color: #E2E8F0;
  line-height: 1.6;
}

.emergency-cta-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .emergency-cta-buttons {
    flex-direction: row;
    justify-content: flex-start;
  }
}

@media (min-width: 992px) {
  .emergency-cta-buttons {
    justify-content: flex-end;
  }
}

/* 14. SERVICE AREA & MAP */
.service-area-section {
  background-color: var(--color-white);
}

.area-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 992px) {
  .area-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.area-primary-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  background-color: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}

.location-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: var(--color-cyan);
  color: var(--color-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.area-primary-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--color-navy);
  margin-bottom: 0.25rem;
}

.area-address {
  font-size: 1rem;
  color: var(--color-text-dark);
}

.area-hours {
  font-size: 0.875rem;
  color: var(--color-cyan-hover);
  font-weight: 700;
}

.communities-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-navy);
  margin-bottom: 0.35rem;
}

.communities-intro {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.towns-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: var(--space-lg);
}

.town-tag {
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  color: var(--color-navy);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
}

.area-note-card {
  background-color: #FFFBEB;
  border: 1px solid #FDE68A;
  border-radius: var(--radius-md);
  padding: var(--space-md);
  font-size: 0.85rem;
  color: #92400E;
  margin-bottom: var(--space-lg);
}

.area-map-wrapper {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.map-container {
  width: 100%;
  height: 420px;
  background-color: #E2E8F0;
  position: relative;
}

.map-placeholder {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.map-legend {
  padding: 0.75rem 1rem;
  background: var(--color-bg-soft);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.825rem;
  color: var(--color-text-muted);
}

.legend-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--color-coral);
  box-shadow: 0 0 6px var(--color-coral);
}

/* 15. FAQ ACCORDION */
.faq-section {
  background-color: var(--color-bg-soft);
}

.faq-accordion {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
  scroll-margin-top: calc(var(--header-height) + 20px);
}

.faq-item:hover {
  border-color: var(--color-cyan);
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-navy);
}

.faq-icon {
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-cyan);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

.faq-trigger[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
  color: var(--color-coral);
}

.faq-panel {
  padding: 0 1.5rem 1.5rem 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.975rem;
  line-height: 1.6;
}

.faq-panel[hidden] {
  display: none;
}

/* 16. CONTACT & LEAD FORM */
.contact-section {
  background-color: var(--color-white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
}

@media (min-width: 992px) {
  .contact-grid {
    grid-template-columns: 1fr 1.25fr;
  }
}

.contact-info-panel {
  background: linear-gradient(135deg, #102A43 0%, #0B1C2D 100%);
  color: var(--color-white);
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.contact-title {
  font-family: var(--font-heading);
  font-size: clamp(1.85rem, 3vw + 0.5rem, 2.5rem);
  color: var(--color-white);
  margin-bottom: var(--space-sm);
  line-height: 1.2;
}

.contact-intro {
  color: #CBD5E1;
  font-size: 1.05rem;
  margin-bottom: var(--space-xl);
}

.contact-details-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.contact-detail-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.contact-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: rgba(18, 207, 227, 0.2);
  color: var(--color-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.detail-label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--color-cyan);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.detail-value {
  font-size: 1.05rem;
  color: var(--color-white);
  font-weight: 500;
}

.phone-highlight {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-white);
  transition: color var(--transition-fast);
}

.phone-highlight:hover {
  color: var(--color-cyan);
}

.contact-reassurance-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.06);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: #94A3B8;
}

.reassurance-icon {
  font-size: 1.25rem;
}

/* Contact Lead Form */
.contact-form-panel {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

@media (min-width: 640px) {
  .contact-form-panel {
    padding: var(--space-2xl);
  }
}

.form-title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 0.25rem;
}

.form-subtitle {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 0.35rem;
}

.required-mark {
  color: var(--color-coral);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: #FAFCFE;
  font-size: 0.975rem;
  color: var(--color-text-dark);
  transition: all var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--color-cyan);
  background-color: var(--color-white);
  outline: none;
  box-shadow: 0 0 0 3px rgba(18, 207, 227, 0.2);
}

.form-input.is-invalid, .form-textarea.is-invalid {
  border-color: var(--color-coral);
  background-color: #FFF5F5;
}

.error-msg {
  font-size: 0.8rem;
  color: var(--color-coral);
  margin-top: 0.25rem;
  min-height: 1.1rem;
}

/* Custom Consent Checkbox */
.form-checkbox-group {
  margin: var(--space-lg) 0;
}

.checkbox-container {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  cursor: pointer;
  position: relative;
  user-select: none;
}

.checkbox-container input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.custom-checkbox {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border);
  border-radius: 4px;
  background-color: #FAFCFE;
  flex-shrink: 0;
  margin-top: 0.15rem;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.checkbox-container input:checked ~ .custom-checkbox {
  background-color: var(--color-navy);
  border-color: var(--color-navy);
}

.checkbox-container input:checked ~ .custom-checkbox::after {
  content: '';
  width: 5px;
  height: 10px;
  border: solid var(--color-cyan);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-bottom: 2px;
}

.checkbox-container input:focus-visible ~ .custom-checkbox {
  outline: 3px solid var(--color-cyan);
  outline-offset: 2px;
}

.checkbox-text {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.45;
}

.form-submit-row {
  margin-top: var(--space-md);
}

.spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: var(--color-white);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.btn.is-loading .spinner {
  display: inline-block;
}

.btn.is-loading .btn-text {
  opacity: 0.8;
}

.form-hook-notice {
  margin-top: var(--space-md);
  text-align: center;
  color: #94A3B8;
  font-size: 0.75rem;
}

.form-feedback-region {
  padding: 0;
  margin-bottom: 0;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
}

.form-feedback-region.success {
  padding: 1rem;
  margin-bottom: 1rem;
  background-color: #ECFDF5;
  border: 1px solid #10B981;
  color: #065F46;
  font-weight: 500;
}

.form-feedback-region.error {
  padding: 1rem;
  margin-bottom: 1rem;
  background-color: #FEF2F2;
  border: 1px solid #EF4444;
  color: #991B1B;
}

/* 17. FOOTER */
.site-footer {
  background-color: var(--color-navy-dark);
  color: #94A3B8;
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

@media (min-width: 768px) {
  .footer-top {
    grid-template-columns: 1.25fr 1fr 1fr;
  }
}

.footer-logo {
  height: 48px;
  width: auto;
  margin-bottom: var(--space-sm);
}

.footer-tagline {
  font-size: 0.9rem;
  color: #CBD5E1;
  max-width: 320px;
}

.footer-phone a {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
}

.footer-phone a:hover {
  color: var(--color-cyan);
}

.footer-address {
  font-size: 0.9rem;
  color: #CBD5E1;
  margin-top: 0.25rem;
}

.footer-hours {
  font-size: 0.85rem;
  color: var(--color-cyan);
  font-weight: 600;
  margin-top: 0.25rem;
}

.footer-nav-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: #94A3B8;
}

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

.footer-legal-block {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-disclaimer {
  font-size: 0.8rem;
  line-height: 1.6;
  color: #94A3B8;
}

.footer-bottom {
  padding-top: var(--space-lg);
  text-align: center;
  font-size: 0.85rem;
  color: #64748B;
}

/* 18. MOBILE FLOATING CALL BUTTON */
.mobile-floating-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.65rem 1rem calc(0.65rem + env(safe-area-inset-bottom));
  background-color: rgba(16, 42, 67, 0.98);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(18, 207, 227, 0.3);
  z-index: 999;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.2);
}

@media (min-width: 992px) {
  .mobile-floating-cta {
    display: none;
  }
}

.floating-call-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background-color: var(--color-coral);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px rgba(255, 94, 87, 0.4);
}

.floating-call-btn:active {
  background-color: var(--color-coral-hover);
}

/* 19. SUPPLIED IMAGE PLACEMENTS */
.why-media-showcase {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin-top: var(--space-2xl);
  background: var(--color-navy);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
  .why-media-showcase {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: stretch;
  }
}

.why-showcase-img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

@media (min-width: 768px) {
  .why-showcase-img {
    height: 100%;
    min-height: 240px;
  }
}

.why-media-showcase p {
  align-self: center;
  margin: 0;
  padding: var(--space-xl);
  color: #E2E8F0;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.55;
}

.contact-photo-frame {
  margin-bottom: var(--space-lg);
  border: 1px solid rgba(18, 207, 227, 0.28);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.contact-photo {
  width: 100%;
  height: 170px;
  object-fit: cover;
}

/* 20. WHITE HEADER FOR ENHANCED LOGO VISIBILITY */
.site-header {
  background-color: var(--color-white);
  border-bottom-color: rgba(16, 42, 67, 0.12);
  box-shadow: 0 2px 12px rgba(16, 42, 67, 0.08);
}

.site-header.scrolled {
  background-color: rgba(255, 255, 255, 0.97);
  box-shadow: 0 6px 20px rgba(16, 42, 67, 0.14);
}

@media (min-width: 992px) {
  .nav-link {
    color: var(--color-navy);
  }

  .nav-link:hover,
  .nav-link:focus-visible {
    color: var(--color-coral);
  }

  .nav-link::after {
    background-color: var(--color-coral);
  }
}

.header-phone-cta {
  color: var(--color-navy);
  background: var(--color-bg-soft);
  border-color: rgba(16, 42, 67, 0.16);
}

.header-phone-cta:hover {
  background: rgba(18, 207, 227, 0.13);
  border-color: var(--color-cyan);
}

.phone-number {
  color: var(--color-navy);
}

.mobile-menu-toggle .hamburger-bar {
  background-color: var(--color-navy);
}