/* ============================================
   Frost Fire HVACR — Main Stylesheet
   ============================================ */

/* --- CSS Variables --- */
:root {
  --primary: #1B3A5C;
  --primary-dark: #122840;
  --secondary: #E8531E;
  --secondary-dark: #c4441a;
  --accent: #4DA8DA;
  --accent-light: #7ec8f0;
  --white: #FFFFFF;
  --off-white: #F5F7FA;
  --light-gray: #E8ECF1;
  --gray: #94A3B8;
  --dark: #1E293B;
  --text: #334155;
  --text-light: #64748B;
  --gradient-fire: linear-gradient(135deg, #E8531E 0%, #F59E0B 100%);
  --gradient-ice: linear-gradient(135deg, #4DA8DA 0%, #1B3A5C 100%);
  --gradient-hero: linear-gradient(135deg, #1B3A5C 0%, #0F2234 60%, #1a1a2e 100%);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--secondary); }

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', 'Inter', sans-serif;
  color: var(--dark);
  line-height: 1.25;
  font-weight: 700;
}
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 3vw, 1.5rem); }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* --- Top Bar --- */
.top-bar {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.85);
  font-size: 0.85rem;
  padding: 8px 0;
}
.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.top-bar a { color: var(--accent-light); }
.top-bar a:hover { color: var(--white); }
.top-bar-left { display: flex; gap: 20px; align-items: center; }
.top-bar-right { display: flex; gap: 20px; align-items: center; }
.trust-badge { display: flex; align-items: center; gap: 5px; }
.trust-badge .icon { font-size: 1rem; }

/* --- Header --- */
.header {
  background: var(--white);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
  transition: box-shadow var(--transition);
  width: 100%;
}
.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  padding-bottom: 12px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.logo-icon {
  font-size: 2.2rem;
  line-height: 1;
}
.logo-text {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.25rem;
  line-height: 1.2;
}
.logo-text .frost { color: var(--accent); }
.logo-text .fire { color: var(--secondary); }
.logo-text .sub {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-light);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* --- Navigation --- */
.nav { display: flex; align-items: center; gap: 8px; }
.nav a {
  color: var(--text);
  font-weight: 500;
  font-size: 0.92rem;
  padding: 8px 14px;
  border-radius: 8px;
  transition: all var(--transition);
  white-space: nowrap;
}
.nav a:hover, .nav a.active {
  color: var(--secondary);
  background: rgba(232,83,30,0.06);
}
.nav-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--secondary) !important;
  color: var(--white) !important;
  font-weight: 700 !important;
  border-radius: 50px !important;
  padding: 10px 22px !important;
  font-size: 0.95rem !important;
  box-shadow: 0 4px 15px rgba(232,83,30,0.3);
}
.nav-phone:hover {
  background: var(--secondary-dark) !important;
  color: var(--white) !important;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(232,83,30,0.4);
}

/* Mobile menu */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: var(--dark);
  padding: 8px;
}

/* --- Hero Section --- */
.hero {
  background: var(--gradient-hero);
  color: var(--white);
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(232,83,30,0.15) 0%, transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(77,168,218,0.1) 0%, transparent 70%);
  border-radius: 50%;
}
.hero .container { position: relative; z-index: 1; }
.hero-content { max-width: 700px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50px;
  padding: 8px 18px;
  font-size: 0.85rem;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}
.hero h1 {
  color: var(--white);
  font-size: clamp(2.2rem, 5.5vw, 3.5rem);
  margin-bottom: 20px;
  line-height: 1.15;
}
.hero h1 .highlight {
  background: var(--gradient-fire);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 32px;
  max-width: 560px;
  line-height: 1.8;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }

/* Trust Bar */
.trust-bar {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 1rem;
  text-align: center;
}
.trust-item strong { font-size: 1.1rem; color: var(--primary); }
.trust-item span { font-size: 0.9rem; color: var(--text-light); }
.trust-item .icon, .trust-item i {
  font-size: 2rem;
  color: var(--accent);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.08);
  border-radius: 10px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--secondary);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(232,83,30,0.35);
}
.btn-primary:hover {
  background: var(--secondary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(232,83,30,0.45);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.3);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.6);
  color: var(--white);
}
.btn-secondary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(27,58,92,0.3);
}
.btn-secondary:hover {
  background: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
}
.btn-sm { padding: 10px 22px; font-size: 0.9rem; }
.btn-lg { padding: 18px 38px; font-size: 1.1rem; }

/* --- Sections --- */
.section {
  padding: 80px 0;
}
.section-alt {
  background: var(--off-white);
}
.section-dark {
  background: var(--primary);
  color: var(--white);
}
.section-dark h2, .section-dark h3 { color: var(--white); }
.section-dark p { color: rgba(255,255,255,0.8); }

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 50px;
}
.section-header .overline {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--secondary);
  margin-bottom: 12px;
}
.section-header h2 { margin-bottom: 16px; }
.section-header p { color: var(--text-light); font-size: 1.05rem; }

/* --- Services Grid --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 24px;
}
.service-card {
  background: var(--primary-dark);
  border-radius: var(--radius);
  padding: 40px 28px;
  transition: all var(--transition);
  border: 1px solid rgba(255,255,255,0.08);
  text-decoration: none;
  color: var(--white);
  display: block;
  position: relative;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  min-height: 280px;
}
.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,34,52,0.92) 0%, rgba(27,58,92,0.85) 100%);
  z-index: 1;
  transition: all var(--transition);
}
.service-card:hover::before {
  background: linear-gradient(135deg, rgba(15,34,52,0.85) 0%, rgba(27,58,92,0.75) 100%);
}
.service-card > * { position: relative; z-index: 2; }
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
  border-color: var(--accent);
  color: var(--white);
}
.service-card .card-icon {
  font-size: 2.5rem;
  margin-bottom: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: rgba(232,83,30,0.15);
  border-radius: 14px;
  color: var(--accent);
}
.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--white);
}
.service-card p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.7;
}
.service-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-light);
  font-weight: 600;
  font-size: 0.95rem;
  margin-top: 16px;
}
.service-card .card-link:hover { color: var(--accent); }

/* --- Why Choose Us --- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 30px;
}
.why-card {
  text-align: center;
  padding: 24px;
}
.why-card .icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 18px;
}
.why-card:nth-child(1) .icon { background: rgba(232,83,30,0.1); }
.why-card:nth-child(2) .icon { background: rgba(77,168,218,0.1); }
.why-card:nth-child(3) .icon { background: rgba(16,185,129,0.1); }
.why-card:nth-child(4) .icon { background: rgba(245,158,11,0.1); }
.why-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.why-card p { font-size: 0.92rem; color: var(--text-light); }

/* --- Areas Section --- */
.areas-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.area-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--white);
  border: 1px solid var(--light-gray);
  border-radius: 50px;
  padding: 10px 22px;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--primary);
  transition: all var(--transition);
  text-decoration: none;
}
.area-tag:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* --- Reviews --- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.review-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 30px;
  border: 1px solid var(--light-gray);
  transition: all var(--transition);
}
.review-card:hover {
  box-shadow: var(--shadow-md);
}
.review-stars { color: #F59E0B; font-size: 1.1rem; margin-bottom: 14px; }
.review-text {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text);
  font-style: italic;
  margin-bottom: 16px;
}
.review-author {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--dark);
}
.review-location {
  font-size: 0.82rem;
  color: var(--text-light);
}

/* --- CTA Section --- */
.cta-section {
  background: var(--gradient-hero);
  color: var(--white);
  padding: 70px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(232,83,30,0.1) 0%, transparent 60%);
  border-radius: 50%;
}
.cta-section .container { position: relative; z-index: 1; }
.cta-section h2 { color: var(--white); margin-bottom: 16px; }
.cta-section p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 30px;
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}
.cta-section .btn-primary {
  font-size: 1.15rem;
  padding: 16px 36px;
}

/* --- Footer --- */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.75);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 18px;
}
.footer-about p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 16px;
}
.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 0.9rem;
}
.footer-contact-item a { color: rgba(255,255,255,0.75); }
.footer-contact-item a:hover { color: var(--accent-light); }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 8px; }
.footer ul a {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  transition: all var(--transition);
}
.footer ul a:hover { color: var(--accent-light); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
}

/* --- Page Hero (inner pages) --- */
.page-hero {
  background: var(--gradient-hero);
  color: var(--white);
  padding: 60px 0 50px;
  text-align: center;
}
.page-hero h1 { color: var(--white); margin-bottom: 12px; }
.page-hero p { color: rgba(255,255,255,0.75); font-size: 1.05rem; }
.breadcrumb {
  font-size: 0.85rem;
  margin-bottom: 16px;
  color: rgba(255,255,255,0.5);
}
.breadcrumb a { color: rgba(255,255,255,0.6); }
.breadcrumb a:hover { color: var(--white); }

/* --- Content Pages --- */
.content-section { padding: 60px 0; }
.content-body { max-width: 800px; margin: 0 auto; }
.content-body h2 {
  font-size: 1.6rem;
  margin: 40px 0 16px;
  padding-top: 20px;
}
.content-body h3 {
  font-size: 1.25rem;
  margin: 30px 0 12px;
}
.content-body p { margin-bottom: 16px; }
.content-body ul, .content-body ol {
  margin-bottom: 16px;
  padding-left: 24px;
}
.content-body li {
  margin-bottom: 8px;
  line-height: 1.6;
}

/* Service detail page */
.service-detail-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 50px;
  align-items: start;
}
.service-sidebar {
  position: sticky;
  top: 100px;
}
.sidebar-card {
  background: var(--off-white);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
}
.sidebar-card h3 {
  font-size: 1.1rem;
  margin-bottom: 14px;
}
.sidebar-card ul { list-style: none; padding: 0; }
.sidebar-card ul li {
  padding: 10px 0;
  border-bottom: 1px solid var(--light-gray);
}
.sidebar-card ul li:last-child { border-bottom: none; }
.sidebar-card ul a {
  color: var(--text);
  font-weight: 500;
  font-size: 0.92rem;
}
.sidebar-card ul a:hover { color: var(--secondary); }
.sidebar-cta {
  background: var(--gradient-hero);
  color: var(--white);
  border-radius: var(--radius);
  padding: 30px;
  text-align: center;
}
.sidebar-cta h3 { color: var(--white); margin-bottom: 10px; }
.sidebar-cta p { color: rgba(255,255,255,0.8); font-size: 0.92rem; margin-bottom: 18px; }
.sidebar-cta .phone {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--white);
  display: block;
  margin-bottom: 14px;
}

/* --- FAQ Accordion --- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--light-gray);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-question {
  width: 100%;
  background: var(--white);
  border: none;
  padding: 18px 24px;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--transition);
}
.faq-question:hover { background: var(--off-white); }
.faq-question::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--secondary);
  transition: transform var(--transition);
}
.faq-item.active .faq-question::after {
  content: '−';
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}
.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 24px 18px;
}
.faq-answer p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* --- Contact Form --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--dark);
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--light-gray);
  border-radius: 10px;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition);
  background: var(--white);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(77,168,218,0.15);
}
.form-group textarea { min-height: 120px; resize: vertical; }

.contact-info-card {
  background: var(--off-white);
  border-radius: var(--radius);
  padding: 30px;
  margin-bottom: 24px;
}
.contact-info-card h3 { margin-bottom: 16px; font-size: 1.1rem; }
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 0.95rem;
}
.contact-info-item .icon { font-size: 1.2rem; margin-top: 2px; }

/* --- Blog Grid --- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 30px;
}
.blog-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--light-gray);
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
  display: block;
}
.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  color: inherit;
}
.blog-card-img {
  height: 200px;
  background: var(--gradient-ice);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}
.blog-card-body { padding: 24px; }
.blog-card-body .tag {
  display: inline-block;
  background: rgba(232,83,30,0.08);
  color: var(--secondary);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.blog-card-body h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  line-height: 1.4;
}
.blog-card-body p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}
.blog-card-body .read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--secondary);
  font-weight: 600;
  font-size: 0.88rem;
  margin-top: 14px;
}

/* Map */
.map-container {
  border-radius: var(--radius);
  overflow: hidden;
  height: 350px;
}
.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* --- Stats Bar --- */
.stats-bar {
  background: var(--white);
  padding: 40px 0;
  border-bottom: 1px solid var(--light-gray);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}
.stat-item .stat-number {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--secondary);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-item .stat-label {
  font-size: 0.88rem;
  color: var(--text-light);
  font-weight: 500;
}

/* --- Mobile Phone Button (floating) --- */
.mobile-call-btn {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 999;
  background: var(--secondary);
  color: var(--white);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 4px 20px rgba(232,83,30,0.4);
  text-decoration: none;
  animation: pulse-btn 2s infinite;
}
@keyframes pulse-btn {
  0%, 100% { box-shadow: 0 4px 20px rgba(232,83,30,0.4); }
  50% { box-shadow: 0 4px 30px rgba(232,83,30,0.6); }
}

/* --- Service Area Page --- */
.area-detail-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

/* --- Utility --- */
.text-center { text-align: center; }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }
.mt-40 { margin-top: 40px; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }

/* check list */
.check-list { list-style: none; padding: 0; }
.check-list li {
  padding: 8px 0 8px 32px;
  position: relative;
  line-height: 1.6;
}
.check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--secondary);
  font-weight: 700;
  font-size: 1.1rem;
}

/* --- Table --- */
.content-body table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
  font-size: 0.92rem;
}
.content-body th, .content-body td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--light-gray);
}
.content-body th {
  background: var(--off-white);
  font-weight: 700;
  color: var(--dark);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1024px) {
  .service-detail-grid {
    grid-template-columns: 1fr;
  }
  .service-sidebar { position: static; }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .top-bar { display: none; }
  .nav { display: none; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    padding: 16px;
    gap: 4px;
  }
  .nav.open a { padding: 12px 16px; border-radius: 8px; width: 100%; }
  .nav-phone { width: 100%; justify-content: center; }
  .menu-toggle { display: block; }
  
  .hero { padding: 80px 0 50px; }
  .hero h1 { font-size: 2rem; }
  .trust-bar { gap: 24px; }
  .trust-item { font-size: 1rem; }
  .trust-item strong { font-size: 1.15rem; }
  .trust-item span { font-size: 0.95rem; }
  .trust-item .icon, .trust-item i { font-size: 1.8rem; }
  
  .section { padding: 50px 0; }
  .services-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  
  .mobile-call-btn { display: flex; }
  
  .area-detail-hero { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; justify-content: center; }
  .stats-grid { grid-template-columns: 1fr; gap: 20px; }
}