/* ============================================
   SKYLINE HEATING LTD — Static Export CSS
   Brand: #29ABE2 (sky blue) on #000000 (black)
   ============================================ */

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

:root {
  --primary: #29ABE2;
  --primary-dark: #1e8fbd;
  --black: #000000;
  --dark: #0D0D0D;
  --card-bg: rgba(255,255,255,0.05);
  --card-border: rgba(255,255,255,0.10);
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --white: #ffffff;
  --green: #25D366;
  --font: 'Inter', sans-serif;
  --radius: 0.75rem;
  --container: 80rem;
}

html {
  scroll-behavior: smooth;
  width: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font);
  background: var(--black);
  color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  width: 100%;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-primary { color: var(--primary); }
.bg-black { background: var(--black); }
.bg-primary { background: var(--primary); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font);
  font-weight: 700;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s;
  border: 2px solid transparent;
  white-space: nowrap;
  padding: 0.6rem 1.25rem;
  font-size: 0.95rem;
}
.btn-primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}
.btn-outline:hover { background: var(--white); color: var(--dark); }
.btn-lg { padding: 1rem 2rem; font-size: 1.1rem; }

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(8px);
  padding: 1.25rem 0;
  transition: all 0.3s;
}
.nav.scrolled {
  background: #000;
  padding: 0.75rem 0;
  box-shadow: 0 4px 24px rgba(0,0,0,0.6);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--white);
  font-weight: 700;
}
.nav-logo {
  height: 3rem;
  width: auto;
  border-radius: 0.375rem;
  border: 1px solid rgba(255,255,255,0.1);
  object-fit: contain;
}
.nav-brand-text { display: none; font-size: 0.9rem; line-height: 1.3; }
.nav-brand-text strong { color: var(--primary); display: block; }
.nav-gas-safe {
  height: 2.5rem;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  border-radius: 0.25rem;
  border: 1px solid rgba(255,255,255,0.1);
  margin-left: 0.25rem;
}
.nav-links {
  display: none;
  gap: 1.5rem;
}
.nav-links a {
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--primary); }
.nav-actions {
  display: none;
  align-items: center;
  gap: 1rem;
  padding-left: 1.5rem;
  border-left: 1px solid rgba(255,255,255,0.2);
}
.nav-phone {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 700;
  font-size: 1rem;
  color: var(--white);
  transition: color 0.2s;
}
.nav-phone svg { color: var(--primary); }
.nav-phone:hover { color: var(--primary); }

.nav-hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all 0.3s;
  transform-origin: center;
}
.nav-hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.active span:nth-child(2) { opacity: 0; }
.nav-hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem 1.5rem 1.5rem;
  background: var(--black);
  border-top: 1px solid rgba(255,255,255,0.1);
}
.nav-mobile.open { display: flex; }
.nav-mobile-link {
  color: var(--white);
  font-weight: 500;
  font-size: 1.1rem;
  text-transform: uppercase;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

@media (min-width: 640px) {
  .nav-brand-text { display: block; }
}
@media (min-width: 768px) {
  .nav-links { display: flex; }
  .nav-actions { display: flex; }
  .nav-hamburger { display: none; }
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 5rem;
  overflow: hidden;
  background: var(--black);
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.35;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, #000 0%, rgba(0,0,0,0.85) 50%, transparent 100%),
              linear-gradient(to top, #000 0%, transparent 50%, rgba(0,0,0,0.6) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  padding-top: 2rem;
  padding-bottom: 4rem;
}
.hero-text {
  width: 100%;
  max-width: 680px;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.gas-safe-badge {
  height: auto;
  max-height: 4rem;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  border-radius: 0.375rem;
  display: block;
}
.hero-eyebrow {
  color: var(--primary);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: -0.5rem;
}
.hero-text h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--white);
}
.hero-sub {
  font-size: 1.15rem;
  color: #d1d5db;
  line-height: 1.7;
  max-width: 560px;
}
.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.5rem;
}
.hero-rating {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 1rem;
}
.hero-stars { display: flex; gap: 4px; align-items: center; }
.rating-title { font-weight: 700; font-size: 0.95rem; }
.rating-sub { color: var(--gray-400); font-size: 0.85rem; }

/* ============================================
   SECTIONS
   ============================================ */
.section { padding: 6rem 0; }
.section-header {
  text-align: center;
  max-width: 48rem;
  margin: 0 auto 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.section-header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--white);
}
.section-header p { color: var(--gray-400); font-size: 1.05rem; }

.badge {
  display: inline-block;
  background: rgba(41,171,226,0.15);
  color: var(--primary);
  border: 1px solid rgba(41,171,226,0.2);
  border-radius: 999px;
  padding: 0.3rem 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ============================================
   SERVICES
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.service-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: all 0.3s;
}
.service-card:hover {
  border-color: rgba(41,171,226,0.6);
  box-shadow: 0 0 24px rgba(41,171,226,0.12);
}
.service-icon {
  width: 3.5rem;
  height: 3.5rem;
  background: rgba(41,171,226,0.1);
  border: 1px solid rgba(41,171,226,0.2);
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}
.service-card h3 { font-size: 1.15rem; font-weight: 700; color: var(--white); }
.service-card p { color: var(--gray-400); line-height: 1.7; }

@media (min-width: 768px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .services-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ============================================
   WHY US
   ============================================ */
.why-us-grid {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  align-items: center;
}
.why-us-img-wrap { width: 100%; }
.why-us-img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  object-position: top;
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
}
.why-us-content { width: 100%; }
.why-us-content h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--white);
  margin: 0.75rem 0 1.5rem;
  line-height: 1.2;
}
.why-us-sub {
  color: var(--gray-400);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 2.5rem;
}
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}
.benefit {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.benefit svg { flex-shrink: 0; margin-top: 3px; }
.benefit h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.25rem; }
.benefit p { color: var(--gray-400); font-size: 0.95rem; }

@media (min-width: 640px) {
  .benefits-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .why-us-grid { flex-direction: row; gap: 4rem; }
  .why-us-img-wrap { width: 50%; }
  .why-us-img { height: 600px; }
  .why-us-content { width: 50%; }
}

/* ============================================
   GALLERY
   ============================================ */
.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  grid-auto-rows: 250px;
}
.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  cursor: pointer;
}
.gallery-item.tall { grid-row: span 2; }
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.7s ease;
}
.gallery-item:hover img { transform: scale(1.05); }
.gallery-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
  opacity: 0;
  transition: opacity 0.3s;
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
}
.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-overlay p { color: var(--white); font-weight: 700; font-size: 1rem; }

@media (min-width: 768px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ============================================
   REVIEWS
   ============================================ */
.reviews-header {
  text-align: center;
  margin-bottom: 3.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.reviews-stars { display: flex; gap: 6px; }
.reviews-header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--white);
}
.reviews-header p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.9);
  max-width: 40rem;
}
.reviews-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.review-card {
  background: var(--white);
  color: var(--dark);
  border-radius: var(--radius);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}
.review-stars { display: flex; gap: 3px; }
.review-text {
  font-size: 1rem;
  line-height: 1.75;
  font-style: italic;
  color: #1f2937;
  flex: 1;
}
.review-author { display: flex; align-items: center; gap: 0.75rem; margin-top: auto; }
.review-avatar {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background: rgba(41,171,226,0.1);
  color: var(--primary);
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.review-name { font-weight: 700; font-size: 0.95rem; color: var(--dark); }
.review-source { font-size: 0.8rem; color: var(--gray-500); }
.reviews-cta { display: flex; justify-content: center; margin-top: 3rem; }
.btn-google-reviews {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--white);
  color: var(--dark);
  font-weight: 700;
  font-size: 1.05rem;
  padding: 1rem 2rem;
  border-radius: 0.5rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  transition: all 0.2s;
}
.btn-google-reviews:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  transform: scale(1.03);
}

@media (min-width: 768px) {
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================
   CONTACT
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}
.contact-info h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 1rem;
  line-height: 1.2;
}
.contact-sub { color: var(--gray-400); font-size: 1.05rem; line-height: 1.8; margin-bottom: 2.5rem; }
.contact-items { display: flex; flex-direction: column; gap: 1.5rem; margin-bottom: 2rem; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  color: var(--white);
  transition: all 0.2s;
}
.contact-icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
}
.contact-item:hover .contact-icon { background: var(--primary); border-color: var(--primary); }
.contact-item:hover .contact-value { color: var(--primary); }
.contact-whatsapp:hover .contact-icon { background: var(--green); border-color: var(--green); }
.contact-whatsapp:hover .contact-value { color: var(--green); }
.contact-label { font-size: 0.85rem; color: var(--gray-400); font-weight: 500; }
.contact-value { font-size: 1.3rem; font-weight: 700; transition: color 0.2s; }
.contact-email { font-size: 1rem; word-break: break-all; }

.social-links { display: flex; gap: 0.75rem; }
.social-link {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: var(--card-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  transition: background 0.2s;
}
.social-facebook:hover { background: #1877F2; }
.social-instagram:hover { background: #E4405F; }
.social-google:hover { background: var(--white); }

.areas-panel {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 1rem;
  padding: 2.5rem;
}
.areas-panel h3 {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.areas-sub { color: var(--gray-400); margin-bottom: 1.75rem; }
.areas-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-bottom: 2rem;
}
.area-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 500;
}

@media (min-width: 1024px) {
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--black);
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 2rem 0;
  text-align: center;
  color: var(--gray-500);
  font-size: 0.875rem;
}