/* ==========================================================================
   S & J Roofing - Stylesheet
   Modern, Responsive, Performance-Optimized CSS for Roofing Contractors
   ========================================================================== */

/* 1. Design System & CSS Custom Properties */
:root {
  /* Brand Colors - Contractor / Roofing Palette */
  --primary: #1d4ed8;            /* Bold Royal Roof Blue */
  --primary-hover: #1e40af;      /* Darker Blue */
  --primary-light: #eff6ff;      /* Soft Blue Surface */
  --primary-glow: rgba(29, 78, 216, 0.2);

  --secondary: #0f172a;          /* Architectural Slate Navy */
  --secondary-light: #1e293b;
  --accent: #d97706;             /* Warm Amber / Gold for badges & stars */
  --accent-light: #fef3c7;
  --success: #059669;            /* Green for guarantees & warranties */
  --error: #dc2626;

  /* Neutral Surface & Text */
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #94a3b8;
  --bg-body: #ffffff;
  --bg-surface: #f8fafc;
  --bg-card: #ffffff;
  --border: #e2e8f0;
  --border-focus: #2563eb;

  /* Typography */
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --line-height-base: 1.6;

  /* Elevation & Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-colored: 0 12px 24px -6px rgba(29, 78, 216, 0.25);

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* 2. Global Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-family);
  color: var(--text-main);
  background-color: var(--bg-body);
  line-height: var(--line-height-base);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

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

/* 3. Utility Layout Classes */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section-padding {
  padding-top: 5.5rem;
  padding-bottom: 5.5rem;
}

.bg-light {
  background-color: var(--bg-surface);
}

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

.section-header {
  max-width: 720px;
  margin: 0 auto 3.5rem auto;
}

.section-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  background-color: var(--primary-light);
  padding: 0.35rem 0.95rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.875rem;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--secondary);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.section-subtitle-left {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 2rem;
}

/* 4. Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  gap: 0.5rem;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(29, 78, 216, 0.28);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(29, 78, 216, 0.38);
}

.btn-outline {
  background-color: transparent;
  color: var(--secondary);
  border-color: #cbd5e1;
}

.btn-outline:hover {
  background-color: var(--bg-surface);
  border-color: var(--secondary);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--secondary);
  border-color: var(--border);
}

.btn-secondary:hover {
  background-color: #e2e8f0;
  transform: translateY(-2px);
}

.btn-lg {
  padding: 0.9rem 1.875rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.55rem 1rem;
  font-size: 0.875rem;
}

.btn-block {
  width: 100%;
}

.btn-icon {
  width: 18px;
  height: 18px;
}

/* 5. Top Emergency Banner */
.top-banner {
  background: linear-gradient(90deg, #b91c1c 0%, #1e3a8a 100%);
  color: #ffffff;
  font-size: 0.85rem;
  padding: 0.55rem 0;
  text-align: center;
}

.banner-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.banner-link {
  color: #fef08a;
  font-weight: 700;
  text-decoration: underline;
  transition: opacity var(--transition-fast);
}

.banner-link:hover {
  opacity: 0.9;
}

/* 6. Site Header & Brand Navigation */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition-normal);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--secondary);
}

.brand-text-group {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.brand-sub {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.brand-sub.light {
  color: #fbbf24;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary) 0%, #1e3a8a 100%);
  color: #ffffff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  flex-shrink: 0;
}

.brand-accent {
  color: var(--primary);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1.85rem;
}

.nav-link {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--text-muted);
  position: relative;
  padding: 0.25rem 0;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
}

.hamburger-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--secondary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* 7. Hero Section */
.hero-section {
  padding-top: 4.5rem;
  padding-bottom: 4.5rem;
  background: radial-gradient(circle at 85% 20%, rgba(29, 78, 216, 0.08) 0%, transparent 60%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 3.5rem;
}

.pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--primary-light);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.35rem 0.95rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.5rem;
}

.pill-dark {
  background-color: #f1f5f9;
  color: var(--secondary);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.25);
}

.hero-title {
  font-size: clamp(2.3rem, 4vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--secondary);
  margin-bottom: 1.25rem;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 560px;
}

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

.phone-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-trust {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.trust-badge-row {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.trust-icon {
  font-size: 1.1rem;
}

.stars {
  color: var(--accent);
  letter-spacing: 2px;
  font-size: 1.05rem;
}

.trust-text {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Hero Visual Box & Floating Badges */
.hero-visual {
  position: relative;
}

.visual-card-main {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-xl);
  position: relative;
}

.card-header-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.icon-inline {
  width: 16px;
  height: 16px;
  color: var(--primary);
}

.stat-highlight {
  margin-bottom: 1.75rem;
}

.stat-number {
  display: block;
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1;
  color: var(--primary);
  margin-bottom: 0.35rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

.highlight-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.highlight-row {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.hl-check {
  color: var(--success);
  font-weight: bold;
  font-size: 1rem;
}

.floating-badge {
  position: absolute;
  background-color: #ffffff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  z-index: 2;
  animation: floatSubtle 4s ease-in-out infinite alternate;
}

.floating-badge p {
  color: var(--text-muted);
  margin-top: 2px;
}

.badge-top {
  top: -20px;
  right: -16px;
}

.badge-bottom {
  bottom: -20px;
  left: -20px;
  animation-delay: 2s;
}

.badge-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

.green-bg { background-color: #d1fae5; color: #059669; }
.gold-bg { background-color: #fef3c7; color: #d97706; }

@keyframes floatSubtle {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-8px); }
}

/* 8. Metrics Section */
.metrics-section {
  background-color: var(--secondary);
  color: #ffffff;
  padding: 3rem 0;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.metric-card {
  padding: 1rem;
}

.metric-value {
  font-size: 2.75rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 0.35rem;
  letter-spacing: -0.02em;
}

.metric-label {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* 9. Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
}

.service-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: #cbd5e1;
  box-shadow: var(--shadow-xl);
}

.service-card.featured-service {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.popular-ribbon {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background-color: var(--primary-light);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
}

.service-icon {
  width: 54px;
  height: 54px;
  background-color: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  margin-bottom: 1.5rem;
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 0.75rem;
}

.service-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.service-features {
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex-grow: 1;
}

.service-features li {
  font-size: 0.875rem;
  color: var(--text-muted);
  position: relative;
  padding-left: 1.25rem;
}

.service-features li::before {
  content: "•";
  color: var(--primary);
  font-weight: bold;
  font-size: 1.2rem;
  position: absolute;
  left: 0;
  top: -2px;
}

.card-link {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.card-link:hover {
  text-decoration: underline;
}

/* 10. About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
}

.about-card-stacked {
  position: relative;
}

.stacked-main-box {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.75rem 2.25rem;
  box-shadow: var(--shadow-lg);
}

.stacked-main-box h3 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--secondary);
  line-height: 1.3;
  margin: 1rem 0;
}

.stacked-main-box p {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 1.5rem;
}

.quote-box {
  background-color: var(--bg-surface);
  border-left: 3px solid var(--primary);
  padding: 1.25rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.quote-box p {
  font-style: italic;
  font-size: 0.95rem;
  color: var(--secondary);
  margin-bottom: 0.5rem;
}

.quote-box cite {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  font-style: normal;
}

.experience-card {
  position: absolute;
  bottom: -24px;
  right: -20px;
  background: var(--primary);
  color: #ffffff;
  padding: 1.25rem 1.75rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-colored);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.exp-number {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1;
}

.exp-text {
  font-size: 0.85rem;
  font-weight: 700;
  max-width: 130px;
  line-height: 1.3;
}

.benefits-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.benefit-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.benefit-check {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: #dbeafe;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  flex-shrink: 0;
  margin-top: 2px;
}

.benefit-item h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 0.25rem;
}

.benefit-item p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.about-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* 11. Roofing Systems Comparison Cards */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
}

.pricing-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.pricing-card.featured-plan {
  border: 2px solid var(--primary);
  box-shadow: var(--shadow-lg);
  transform: scale(1.03);
}

.pricing-card.featured-plan:hover {
  transform: scale(1.03) translateY(-6px);
}

.plan-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--accent);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
}

.plan-name {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 0.5rem;
}

.plan-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  min-height: 44px;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.plan-price {
  display: flex;
  align-items: baseline;
  margin-bottom: 1.75rem;
}

.plan-price .currency {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  margin-right: 0.25rem;
}

.plan-price .amount {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--secondary);
  line-height: 1;
  letter-spacing: -0.03em;
}

.plan-price .period {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-left: 0.35rem;
  font-weight: 600;
}

.plan-features {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 2.25rem;
}

.plan-features li {
  font-size: 0.9rem;
  color: var(--text-main);
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  line-height: 1.45;
}

.plan-features .check {
  color: var(--success);
  font-weight: bold;
}

/* 12. Trust Pillars Grid (Why Choose Us) */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.pillar-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.pillar-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: #cbd5e1;
}

.pillar-icon {
  font-size: 2.25rem;
  margin-bottom: 1.25rem;
  line-height: 1;
}

.pillar-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 0.65rem;
}

.pillar-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* 13. Testimonials Grid */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.testimonial-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.test-stars {
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: 1.25rem;
}

.test-body {
  font-size: 1rem;
  color: var(--text-main);
  font-style: italic;
  line-height: 1.6;
  margin-bottom: 1.75rem;
  flex-grow: 1;
}

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

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: #ffffff;
  flex-shrink: 0;
}

.author-avatar-1 { background-color: #0284c7; }
.author-avatar-2 { background-color: #059669; }
.author-avatar-3 { background-color: #7c3aed; }

.author-meta {
  display: flex;
  flex-direction: column;
}

.author-name {
  font-weight: 700;
  color: var(--secondary);
  font-size: 0.95rem;
}

.author-title {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* 14. FAQ Accordion */
.faq-container {
  max-width: 800px;
}

.accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.accordion-item {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.accordion-item.active {
  border-color: var(--primary);
}

.accordion-header {
  width: 100%;
  background: none;
  border: none;
  padding: 1.25rem 1.5rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--secondary);
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  gap: 1rem;
}

.accordion-header:hover {
  background-color: var(--bg-surface);
}

.accordion-icon {
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--primary);
  transition: transform var(--transition-fast);
  line-height: 1;
}

.accordion-item.active .accordion-icon {
  transform: rotate(45deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease;
  padding: 0 1.5rem;
  background-color: #ffffff;
}

.accordion-item.active .accordion-content {
  padding: 0 1.5rem 1.5rem 1.5rem;
}

.accordion-content p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* 15. Contact Section & Inspection Form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 3.5rem;
  align-items: start;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-icon {
  width: 44px;
  height: 44px;
  background-color: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  flex-shrink: 0;
}

.contact-item strong {
  display: block;
  font-size: 0.95rem;
  color: var(--secondary);
  margin-bottom: 0.2rem;
}

.contact-item p, .contact-item a {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.contact-item a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.contact-form-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.form-title {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 0.4rem;
}

.form-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.form-group-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 1.25rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--secondary);
  margin-bottom: 0.45rem;
}

.required {
  color: var(--error);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background-color: #ffffff;
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-group input.invalid,
.form-group textarea.invalid {
  border-color: var(--error);
  background-color: #fffaf0;
}

.error-msg {
  color: var(--error);
  font-size: 0.775rem;
  margin-top: 0.35rem;
  min-height: 1rem;
}

.privacy-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 0.85rem;
}

/* Button Loading Spinner */
.btn-spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #ffffff;
  animation: spin 0.6s linear infinite;
}

.btn.loading .btn-text {
  opacity: 0.7;
}

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

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

/* 16. Toast Notification */
.toast-notification {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: #ffffff;
  border-left: 4px solid var(--success);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 2000;
  max-width: 420px;
  transform: translateY(150%);
  opacity: 0;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast-notification.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-icon {
  width: 32px;
  height: 32px;
  background-color: #d1fae5;
  color: #059669;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  flex-shrink: 0;
}

.toast-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 2px;
}

.toast-msg {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.toast-close {
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--text-muted);
  cursor: pointer;
  margin-left: auto;
  line-height: 1;
  padding: 0 4px;
}

/* 17. Footer */
.site-footer {
  background-color: var(--secondary);
  color: var(--text-light);
  padding: 4.5rem 0 2.5rem 0;
  border-top: 1px solid #1e293b;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.25fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand .brand-logo {
  margin-bottom: 0.75rem;
}

.brand-name.light {
  color: #ffffff;
}

.footer-tagline {
  font-size: 0.9rem;
  line-height: 1.6;
  margin: 0.5rem 0 1.5rem 0;
  max-width: 320px;
}

.social-links {
  display: flex;
  gap: 0.75rem;
}

.social-link {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: #1e293b;
  color: #cbd5e1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  transition: all var(--transition-fast);
}

.social-link:hover {
  background-color: var(--primary);
  color: #ffffff;
  transform: translateY(-2px);
}

.footer-title {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: var(--text-light);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: #ffffff;
  padding-left: 3px;
}

.footer-newsletter-desc {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.footer-phone a {
  font-size: 1.2rem;
  font-weight: 800;
  color: #fef08a;
}

.footer-hours {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 0.35rem;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid #1e293b;
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 1rem;
}

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

.footer-bottom-links a:hover {
  color: #ffffff;
}

/* 18. Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }

  .hero-visual {
    max-width: 580px;
    margin: 0 auto;
    width: 100%;
  }

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

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .pricing-card.featured-plan {
    transform: none;
  }

  .pricing-card.featured-plan:hover {
    transform: translateY(-6px);
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
    max-width: 550px;
    margin: 0 auto;
  }

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

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

@media (max-width: 768px) {
  .section-padding {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

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

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

  .header-cta {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 74px;
    left: 0;
    width: 100%;
    background-color: #ffffff;
    border-bottom: 1px solid var(--border);
    padding: 1.5rem;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-xl);
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }

  .nav-link {
    font-size: 1.1rem;
  }

  .menu-toggle.active .hamburger-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-toggle.active .hamburger-bar:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.active .hamburger-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

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

  .experience-card {
    position: static;
    margin-top: 1.5rem;
  }
}