/* ==========================================================================
   Vertex Flow HVAC Systems — Production Stylesheet
   Palette: Electric Blue (#087BFF), Aqua Teal (#16D6C5), Deep Charcoal (#101820 / #0A0F16)
   Typography: Space Grotesk (Headings), Manrope (Body/UI)
   ========================================================================== */

/* CSS Reset & Variables */
:root {
  --color-electric-blue: #087BFF;
  --color-electric-blue-hover: #0066dc;
  --color-aqua-teal: #16D6C5;
  --color-aqua-teal-hover: #12b7a8;
  --color-deep-charcoal: #101820;
  --color-dark-bg: #0A0F16;
  --color-surface-dark: #141D27;
  --color-surface-elevated: #1B2634;
  --color-surface-border: rgba(22, 214, 197, 0.22);
  --color-surface-border-blue: rgba(8, 123, 255, 0.25);

  --color-text-main: #F1F5F9;
  --color-text-muted: #94A3B8;
  --color-text-light: #CBD5E1;
  --color-white: #FFFFFF;
  --color-off-white: #F8FAFC;
  --color-accent-amber: #F59E0B;
  --color-error: #EF4444;
  --color-success: #10B981;

  --font-heading: 'Space Grotesk', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Manrope', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --header-height: 80px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 24px rgba(22, 214, 197, 0.25);

  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-main);
  background-color: var(--color-dark-bg);
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  overflow-x: hidden;
  background-color: var(--color-dark-bg);
  background-image:
    radial-gradient(circle at 15% 50%, rgba(8, 123, 255, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 85% 20%, rgba(22, 214, 197, 0.07) 0%, transparent 40%);
  background-attachment: fixed;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -60px;
  left: 20px;
  background: var(--color-electric-blue);
  color: var(--color-white);
  padding: 12px 20px;
  font-weight: 700;
  z-index: 99999;
  border-radius: var(--radius-sm);
  transition: top var(--transition-fast);
  text-decoration: none;
}
.skip-link:focus {
  top: 16px;
  outline: 3px solid var(--color-aqua-teal);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  letter-spacing: -0.025em;
  line-height: 1.2;
  color: var(--color-white);
  font-weight: 700;
}

p {
  margin-bottom: 1.25rem;
  color: var(--color-text-light);
}

p:last-child {
  margin-bottom: 0;
}

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

a:hover, a:focus-visible {
  color: var(--color-white);
}

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--color-aqua-teal);
  outline-offset: 3px;
}

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

ul {
  list-style: none;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.section {
  padding: 80px 0;
  position: relative;
}

.alt-bg {
  background-color: rgba(20, 29, 39, 0.45);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.text-teal {
  color: var(--color-aqua-teal);
}

.section-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-aqua-teal);
  background: rgba(22, 214, 197, 0.1);
  border: 1px solid rgba(22, 214, 197, 0.25);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.section-heading {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 16px;
}

.section-subtext {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 48px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-electric-blue) 0%, #0566d8 100%);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(8, 123, 255, 0.35);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #1b86ff 0%, var(--color-electric-blue) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(8, 123, 255, 0.45);
  color: var(--color-white);
}

.btn-secondary {
  background: rgba(22, 214, 197, 0.12);
  color: var(--color-aqua-teal);
  border-color: rgba(22, 214, 197, 0.35);
}
.btn-secondary:hover {
  background: var(--color-aqua-teal);
  color: var(--color-deep-charcoal);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-main);
  border-color: rgba(255, 255, 255, 0.2);
}
.btn-outline:hover {
  border-color: var(--color-white);
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.05);
}

.btn-white {
  background: var(--color-white);
  color: var(--color-deep-charcoal);
  font-weight: 800;
}
.btn-white:hover {
  background: var(--color-off-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  color: var(--color-deep-charcoal);
}

.btn-translucent {
  background: rgba(0, 0, 0, 0.25);
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.3);
}
.btn-translucent:hover {
  background: rgba(0, 0, 0, 0.4);
  border-color: var(--color-white);
  color: var(--color-white);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.0625rem;
}

.btn-xl {
  padding: 18px 36px;
  font-size: 1.125rem;
}

.btn-block {
  width: 100%;
}

.icon {
  flex-shrink: 0;
}

/* ==========================================================================
   Header & Sticky Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(8, 123, 255, 0.16);
  z-index: 1000;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.site-header.scrolled {
  background-color: rgba(255, 255, 255, 0.99);
  border-bottom: 1px solid rgba(8, 123, 255, 0.24);
  box-shadow: 0 5px 20px rgba(15, 23, 42, 0.12);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}

.brand-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo {
  height: 52px;
  width: auto;
  object-fit: contain;
}

.desktop-nav .nav-list {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: #334155;
  padding: 8px 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-electric-blue), var(--color-aqua-teal));
  transition: width var(--transition-fast);
}

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

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #0F172A;
  font-weight: 700;
  font-size: 0.9375rem;
}
.header-phone:hover {
  color: var(--color-electric-blue);
}

.btn-header {
  padding: 10px 22px;
  font-size: 0.875rem;
}

/* Mobile Toggle Hamburger */
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  padding: 10px;
  flex-direction: column;
  justify-content: space-between;
}

.hamburger-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: #0F172A;
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.mobile-toggle[aria-expanded="true"] .hamburger-bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.mobile-toggle[aria-expanded="true"] .hamburger-bar:nth-child(2) {
  opacity: 0;
}
.mobile-toggle[aria-expanded="true"] .hamburger-bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Drawer */
.mobile-nav-drawer {
  position: absolute;
  top: var(--header-height);
  left: 0;
  width: 100%;
  background: var(--color-deep-charcoal);
  border-bottom: 2px solid var(--color-aqua-teal);
  box-shadow: var(--shadow-lg);
  padding: 24px 20px;
  z-index: 999;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.mobile-nav-link {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-main);
  display: block;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.mobile-nav-link:hover {
  color: var(--color-aqua-teal);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding: 60px 0 80px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.availability-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(22, 214, 197, 0.12);
  border: 1px solid rgba(22, 214, 197, 0.3);
  color: var(--color-aqua-teal);
  font-size: 0.875rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-aqua-teal);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--color-aqua-teal);
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(22, 214, 197, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(22, 214, 197, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(22, 214, 197, 0); }
}

.hero-heading {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  line-height: 1.1;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #FFFFFF 60%, var(--color-aqua-teal) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtext {
  font-size: 1.125rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 32px;
}

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

.hero-contextual-link {
  margin-bottom: 36px;
}

.text-link {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-aqua-teal);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.text-link:hover {
  text-decoration: underline;
}

.trust-indicators {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px 20px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-light);
}

.trust-icon {
  color: var(--color-aqua-teal);
}

/* Hero Visual */
.hero-visual .visual-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  border: 1px solid var(--color-surface-border);
  background: var(--color-surface-dark);
}

.hero-img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.visual-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: rgba(16, 24, 32, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(22, 214, 197, 0.3);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 14px;
}

.badge-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(8, 123, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-aqua-teal);
  flex-shrink: 0;
}

.badge-title {
  display: block;
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--color-white);
}

.badge-sub {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Quick Benefits Strip
   ========================================================================== */
.benefits-strip {
  background: var(--color-deep-charcoal);
  border-top: 1px solid rgba(22, 214, 197, 0.15);
  border-bottom: 1px solid rgba(22, 214, 197, 0.15);
  padding: 32px 0;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 8px;
}

.benefit-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(8, 123, 255, 0.12);
  border: 1px solid rgba(8, 123, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-aqua-teal);
  flex-shrink: 0;
}

.benefit-text h3 {
  font-size: 1.0625rem;
  margin-bottom: 4px;
  color: var(--color-white);
}

.benefit-text p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.about-copy p {
  font-size: 1.0625rem;
  line-height: 1.7;
}

.about-links {
  display: flex;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.about-image-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-surface-border-blue);
  background: var(--color-surface-dark);
  box-shadow: var(--shadow-md);
}

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

.about-stat-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--color-surface-elevated);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 16px;
  text-align: center;
}

.stat-value {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-aqua-teal);
}

.stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   Why Choose Us Section
   ========================================================================== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.why-card {
  background: var(--color-surface-dark);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  transition: all var(--transition-fast);
  position: relative;
}

.why-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-electric-blue), var(--color-aqua-teal));
  opacity: 0;
  transition: opacity var(--transition-fast);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.why-card:hover {
  transform: translateY(-4px);
  border-color: rgba(22, 214, 197, 0.3);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.5);
}

.why-card:hover::before {
  opacity: 1;
}

.why-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(22, 214, 197, 0.1);
  color: var(--color-aqua-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.why-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.why-card p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.55;
}

/* ==========================================================================
   HVAC Services Grid
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--color-surface-dark);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-surface-border-blue);
  box-shadow: 0 12px 30px rgba(8, 123, 255, 0.15);
}

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(8, 123, 255, 0.12);
  color: var(--color-aqua-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  border: 1px solid rgba(8, 123, 255, 0.2);
}

.service-card h3 {
  font-size: 1.3125rem;
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 24px;
  flex-grow: 1;
}

.service-link {
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--color-aqua-teal);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition-fast);
}
.service-link:hover {
  gap: 10px;
  color: var(--color-white);
}

/* ==========================================================================
   Detailed Service Sections
   ========================================================================== */
.detail-box {
  background: var(--color-surface-dark);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-md);
}

.detail-content p {
  font-size: 1.0625rem;
  line-height: 1.7;
  max-width: 900px;
  margin-bottom: 28px;
}

.problem-checklist {
  background: var(--color-surface-elevated);
  border: 1px solid rgba(22, 214, 197, 0.18);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 32px;
}

.problem-checklist h3 {
  font-size: 1.125rem;
  color: var(--color-aqua-teal);
  margin-bottom: 16px;
}

.check-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 24px;
}

.check-list li {
  position: relative;
  padding-left: 26px;
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

.check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-aqua-teal);
  font-weight: 800;
}

.detail-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ==========================================================================
   High-Impact 24/7 CTA Banner
   ========================================================================== */
.cta-banner-section {
  padding: 40px 0;
}

.cta-banner-inner {
  background: linear-gradient(135deg, #0561c7 0%, var(--color-electric-blue) 60%, #0d9b8e 100%);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  box-shadow: 0 16px 40px rgba(8, 123, 255, 0.35);
  position: relative;
  overflow: hidden;
}

.cta-banner-inner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.cta-banner-content {
  max-width: 640px;
}

.cta-banner-heading {
  font-size: clamp(1.875rem, 3.5vw, 2.5rem);
  color: var(--color-white);
  margin-bottom: 14px;
}

.cta-banner-subtext {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
}

.cta-banner-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex-shrink: 0;
}

/* ==========================================================================
   Process Section
   ========================================================================== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.process-card {
  background: var(--color-surface-dark);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  position: relative;
}

.step-number {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-aqua-teal);
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.9;
}

.process-card h3 {
  font-size: 1.1875rem;
  margin-bottom: 10px;
}

.process-card p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

.inline-link {
  color: var(--color-aqua-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.inline-link:hover {
  color: var(--color-white);
}

/* ==========================================================================
   Service Area & Interactive Map
   ========================================================================== */
.area-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  align-items: stretch;
}

.area-info-card {
  background: var(--color-surface-dark);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  flex-direction: column;
}

.info-badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-white);
  background: var(--color-electric-blue);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

.area-info-card h3 {
  font-size: 1.875rem;
  margin-bottom: 16px;
}

.address-line, .hours-line {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 1rem;
  margin-bottom: 12px;
}

.area-description {
  margin: 16px 0 24px;
  font-size: 0.9375rem;
  color: var(--color-text-light);
}

.coverage-box {
  background: var(--color-surface-elevated);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin-bottom: 28px;
}

.coverage-box h4 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-aqua-teal);
  margin-bottom: 8px;
}

.coverage-list li {
  font-size: 0.9375rem;
  color: var(--color-text-main);
  padding: 4px 0;
}

.area-cta {
  margin-top: auto;
}

.area-map-card {
  display: flex;
  flex-direction: column;
}

.interactive-map {
  width: 100%;
  height: 480px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-surface-border-blue);
  background: var(--color-surface-dark);
  position: relative;
  z-index: 1;
}

.map-loading-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  height: 100%;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid rgba(22, 214, 197, 0.2);
  border-top-color: var(--color-aqua-teal);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.map-fallback {
  margin-top: 12px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   FAQ Accordion Section
   ========================================================================== */
.faq-accordion {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--color-surface-dark);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: rgba(22, 214, 197, 0.35);
}

.faq-question-heading {
  margin: 0;
}

.faq-trigger {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
}

.faq-icon {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--color-aqua-teal);
  transition: transform var(--transition-fast);
  line-height: 1;
}

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

.faq-answer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 0 28px;
}

.faq-answer-inner {
  padding: 20px 0;
}

.faq-answer p {
  font-size: 1rem;
  color: var(--color-text-light);
  line-height: 1.65;
}

/* ==========================================================================
   Contact Section & Lead Form
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
}

.contact-lead {
  font-size: 1.0625rem;
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.contact-details-card {
  background: var(--color-surface-dark);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-entry {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.entry-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(8, 123, 255, 0.12);
  color: var(--color-aqua-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid rgba(8, 123, 255, 0.25);
}

.entry-sub {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.phone-link-large {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-white);
}
.phone-link-large:hover {
  color: var(--color-aqua-teal);
}

/* Form Card */
.form-card {
  background: var(--color-surface-dark);
  border: 1px solid rgba(22, 214, 197, 0.2);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.form-card h3 {
  font-size: 1.625rem;
  margin-bottom: 8px;
}

.form-sub {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 20px;
}

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

label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-light);
  margin-bottom: 8px;
}

.required {
  color: var(--color-aqua-teal);
}

input[type="text"],
input[type="email"],
input[type="tel"],
select,
textarea {
  width: 100%;
  background: var(--color-surface-elevated);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
select:focus,
textarea:focus {
  border-color: var(--color-aqua-teal);
  box-shadow: 0 0 0 3px rgba(22, 214, 197, 0.15);
  background: #1f2c3d;
}

input::placeholder, textarea::placeholder {
  color: #64748B;
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2316D6C5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

textarea {
  resize: vertical;
}

.field-error {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-error);
  margin-top: 6px;
  min-height: 1.25rem;
}

/* Consent Checkbox */
.consent-group {
  margin: 24px 0 28px;
}

.consent-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  margin-bottom: 0;
}

.consent-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 4px;
  accent-color: var(--color-aqua-teal);
  cursor: pointer;
  flex-shrink: 0;
}

.consent-text {
  font-size: 0.78125rem;
  line-height: 1.5;
  color: var(--color-text-muted);
}

.btn-submit {
  padding: 16px;
  font-size: 1.0625rem;
}

.form-status {
  margin-top: 20px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
}
.form-status.success {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid var(--color-success);
  color: #6ee7b7;
}
.form-status.error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid var(--color-error);
  color: #fca5a5;
}

/* ==========================================================================
   Final CTA Section
   ========================================================================== */
.final-cta-section {
  padding: 80px 0;
  background: radial-gradient(circle at center, rgba(8, 123, 255, 0.15) 0%, transparent 70%);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.final-cta-title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  margin-bottom: 16px;
}

.final-cta-copy {
  font-size: 1.1875rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 36px;
}

.final-cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: #070B10;
  border-top: 1px solid rgba(22, 214, 197, 0.2);
  padding: 72px 0 32px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
  height: 48px;
  width: auto;
  object-fit: contain;
  margin-bottom: 16px;
}

.footer-tagline {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  max-width: 380px;
  margin-bottom: 24px;
}

.footer-contact-summary p {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: 6px;
}

.footer-link {
  color: var(--color-aqua-teal);
  font-weight: 700;
}

.footer-links-col h4, .footer-services-col h4 {
  font-size: 1.0625rem;
  color: var(--color-white);
  margin-bottom: 18px;
}

.footer-nav-list li {
  margin-bottom: 10px;
}

.footer-nav-list a {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}
.footer-nav-list a:hover {
  color: var(--color-aqua-teal);
}

.footer-bottom {
  padding-top: 32px;
}

.footer-copyright {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

/* Exact Footer Disclaimer */
.footer-disclaimer {
  padding: 20px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.footer-disclaimer p {
  font-size: 0.75rem;
  line-height: 1.6;
  color: #64748B;
  margin-bottom: 0;
}

/* ==========================================================================
   Mobile Floating Call Button
   ========================================================================== */
.mobile-floating-cta {
  display: none;
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  z-index: 998;
}

.floating-call-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--color-electric-blue) 0%, var(--color-aqua-teal) 100%);
  color: var(--color-white);
  font-weight: 800;
  font-size: 1.0625rem;
  padding: 16px 24px;
  border-radius: var(--radius-full);
  box-shadow: 0 8px 24px rgba(8, 123, 255, 0.5);
  text-decoration: none;
}
.floating-call-btn:hover {
  color: var(--color-white);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid, .about-grid, .area-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .services-grid, .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .benefits-grid, .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .desktop-nav, .header-phone, .btn-header {
    display: none;
  }
  .mobile-toggle {
    display: flex;
  }
  .services-grid, .why-grid, .benefits-grid, .process-grid, .footer-top {
    grid-template-columns: 1fr;
  }
  .check-list, .form-row {
    grid-template-columns: 1fr;
  }
  .detail-box, .form-card, .area-info-card {
    padding: 28px 20px;
  }
  .cta-banner-inner {
    flex-direction: column;
    padding: 36px 24px;
    text-align: center;
  }
  .cta-banner-actions {
    width: 100%;
  }
  .cta-banner-actions .btn {
    width: 100%;
  }
  .hero-img {
    height: 300px;
  }
  .about-img {
    height: 280px;
  }
  .interactive-map {
    height: 340px;
  }
  .mobile-floating-cta {
    display: block;
    padding-bottom: env(safe-area-inset-bottom, 0);
  }
  body {
    padding-bottom: 70px; /* offset for floating CTA */
  }
}

/* Reduced Motion Accessibility */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .pulse-dot {
    animation: none;
  }
}

/* Supplied service photography — each uploaded HVAC photo has a single, unique placement. */
.service-card-visual {
  height: 164px;
  margin: -32px -26px 24px;
  overflow: hidden;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  border-bottom: 1px solid rgba(22, 214, 197, 0.2);
  background: var(--color-surface-elevated);
}

.service-card-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.35s ease;
}

.service-card:hover .service-card-visual img {
  transform: scale(1.045);
}