/* ============================================================
   CALENTADORES JM — Hoja de estilos principal
   Servicio Técnico Especializado · Bogotá Norte
   ============================================================ */

:root {
  --fire-red: #FF2200;
  --fire-orange: #FF6600;
  --fire-yellow: #FFB300;
  --fire-deep: #CC1100;
  --dark-bg: #0a0a0a;
  --dark-card: #111111;
  --dark-card2: #161616;
  --white: #FFFFFF;
  --gray-light: #CCCCCC;
  --gray-mid: #888888;
  --accent: #FF4400;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--dark-bg);
  color: var(--white);
  font-family: 'Montserrat', sans-serif;
  overflow-x: hidden;
}

/* === FLAME BACKGROUND CANVAS === */
#flame-bg {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

.overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: linear-gradient(to bottom,
    rgba(0,0,0,0.75) 0%,
    rgba(0,0,0,0.6) 40%,
    rgba(0,0,0,0.8) 100%);
  z-index: 1;
  pointer-events: none;
}

/* === LAYOUT === */
section, header, footer, nav {
  position: relative;
  z-index: 2;
}

/* === NAV === */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 5%;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,70,0,0.2);
  z-index: 100;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--fire-orange), var(--fire-red));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.logo-text {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 26px;
  letter-spacing: 2px;
  background: linear-gradient(90deg, var(--fire-orange), var(--fire-yellow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--gray-light);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  transition: color 0.3s;
}

.nav-links a:hover { color: var(--fire-orange); }

.nav-cta {
  background: linear-gradient(135deg, #25D366, #128C7E);
  color: white !important;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 700 !important;
  letter-spacing: 1px;
  transition: transform 0.2s, box-shadow 0.2s !important;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37,211,102,0.4) !important;
  color: white !important;
}

/* === HERO === */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 120px 5% 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,100,0,0.12);
  border: 1px solid rgba(255,100,0,0.3);
  padding: 8px 18px;
  border-radius: 30px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--fire-orange);
  text-transform: uppercase;
  margin-bottom: 28px;
  animation: fadeInDown 0.8s ease both;
}

.hero-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(52px, 10vw, 110px);
  line-height: 0.95;
  letter-spacing: 3px;
  margin-bottom: 12px;
  animation: fadeInUp 0.9s ease 0.1s both;
}

.hero-title span {
  background: linear-gradient(90deg, var(--fire-orange), var(--fire-yellow), var(--fire-red));
  background-size: 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 3s ease infinite;
}

.hero-sub {
  font-family: 'Rajdhani', sans-serif;
  font-size: clamp(18px, 3vw, 28px);
  font-weight: 500;
  color: var(--gray-light);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 24px;
  animation: fadeInUp 0.9s ease 0.2s both;
}

.hero-desc {
  max-width: 560px;
  font-size: 15px;
  color: var(--gray-mid);
  line-height: 1.8;
  margin-bottom: 44px;
  animation: fadeInUp 0.9s ease 0.3s both;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeInUp 0.9s ease 0.4s both;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  background: linear-gradient(135deg, var(--fire-orange), var(--fire-red));
  color: white;
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: 6px;
  transition: transform 0.25s, box-shadow 0.25s;
  box-shadow: 0 4px 20px rgba(255,80,0,0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 35px rgba(255,80,0,0.5);
}

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  background: linear-gradient(135deg, #25D366, #128C7E);
  color: white;
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: 6px;
  transition: transform 0.25s, box-shadow 0.25s;
  box-shadow: 0 4px 20px rgba(37,211,102,0.3);
}

.btn-whatsapp:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 35px rgba(37,211,102,0.5);
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  animation: fadeInUp 0.9s ease 0.5s both;
}

.stat { text-align: center; }

.stat-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 42px;
  color: var(--fire-orange);
  line-height: 1;
}

.stat-label {
  font-size: 11px;
  color: var(--gray-mid);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: 4px;
}

/* === SERVICES === */
#servicios {
  padding: 100px 5%;
  background: rgba(0,0,0,0.5);
}

.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--fire-orange);
  text-transform: uppercase;
  text-align: center;
  margin-bottom: 12px;
}

.section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(36px, 6vw, 60px);
  text-align: center;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.section-desc {
  text-align: center;
  color: var(--gray-mid);
  font-size: 15px;
  max-width: 520px;
  margin: 0 auto 56px;
  line-height: 1.8;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.service-card {
  background: linear-gradient(145deg, var(--dark-card2), var(--dark-card));
  border: 1px solid rgba(255,80,0,0.12);
  border-radius: 12px;
  padding: 36px 28px;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--fire-red), var(--fire-orange), var(--fire-yellow));
  opacity: 0;
  transition: opacity 0.3s;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255,100,0,0.3);
  box-shadow: 0 20px 40px rgba(255,60,0,0.15);
}

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

.service-icon {
  font-size: 42px;
  margin-bottom: 20px;
  display: block;
}

.service-name {
  font-family: 'Rajdhani', sans-serif;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 12px;
  color: var(--white);
}

.service-text {
  font-size: 13px;
  color: var(--gray-mid);
  line-height: 1.8;
}

/* === LOGO SECTION === */
#marca {
  padding: 80px 5%;
  text-align: center;
}

.logo-showcase {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
  margin-top: 48px;
}

.logo-variant {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.logo-box {
  border-radius: 16px;
  padding: 32px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  min-width: 220px;
}

.logo-box.dark {
  background: #0d0d0d;
  border: 1px solid rgba(255,80,0,0.2);
}

.logo-box.light {
  background: #f5f0eb;
}

.logo-box.gradient {
  background: linear-gradient(135deg, #1a0500, #2d0a00);
  border: 1px solid rgba(255,120,0,0.3);
}

.logo-main-icon {
  font-size: 52px;
  line-height: 1;
}

.logo-main-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 32px;
  letter-spacing: 4px;
}

.logo-main-name.fire {
  background: linear-gradient(90deg, var(--fire-orange), var(--fire-yellow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-main-name.dark-text { color: #1a0800; }
.logo-main-name.white-text { color: #ffffff; }

.logo-tagline {
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.logo-tagline.orange { color: var(--fire-orange); }
.logo-tagline.dark-sub { color: #6b3a1f; }
.logo-tagline.light-sub { color: rgba(255,200,150,0.7); }

.logo-label {
  font-size: 11px;
  color: var(--gray-mid);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* === REFERENCE IMAGES (SVG illustrations) === */
#galeria {
  padding: 80px 5%;
  background: rgba(0,0,0,0.4);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  max-width: 1100px;
  margin: 48px auto 0;
}

.gallery-item {
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 4/3;
  position: relative;
  border: 1px solid rgba(255,80,0,0.12);
  transition: transform 0.3s, box-shadow 0.3s;
}

.gallery-item:hover {
  transform: scale(1.03);
  box-shadow: 0 12px 30px rgba(255,60,0,0.25);
}

.gallery-item svg {
  width: 100%;
  height: 100%;
}

.gallery-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  padding: 20px 14px 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--fire-orange);
}

/* === COVERAGE ZONE === */
#zona {
  padding: 80px 5%;
}

.zone-container {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.zone-map {
  background: var(--dark-card2);
  border: 1px solid rgba(255,80,0,0.15);
  border-radius: 12px;
  padding: 32px;
  text-align: center;
}

.zone-map-icon {
  font-size: 60px;
  margin-bottom: 16px;
}

.zone-map-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 28px;
  color: var(--fire-orange);
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.zone-list {
  list-style: none;
  text-align: left;
  margin-top: 16px;
}

.zone-list li {
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 13px;
  color: var(--gray-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

.zone-list li::before {
  content: '🔥';
  font-size: 12px;
}

.zone-info h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 38px;
  letter-spacing: 2px;
  margin-bottom: 16px;
  line-height: 1;
}

.zone-info p {
  color: var(--gray-mid);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 28px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--dark-card2);
  border: 1px solid rgba(255,80,0,0.1);
  border-radius: 8px;
  padding: 14px 18px;
}

.contact-icon {
  font-size: 20px;
  flex-shrink: 0;
}

.contact-text {
  font-size: 14px;
  color: var(--gray-light);
  font-weight: 600;
}

.contact-sub {
  font-size: 11px;
  color: var(--gray-mid);
  margin-top: 2px;
  letter-spacing: 0.5px;
}

/* === CTA SECTION === */
#cta {
  padding: 100px 5%;
  text-align: center;
  background: rgba(0,0,0,0.5);
}

.cta-box {
  max-width: 700px;
  margin: 0 auto;
  background: linear-gradient(145deg, rgba(255,60,0,0.08), rgba(255,100,0,0.04));
  border: 1px solid rgba(255,80,0,0.2);
  border-radius: 20px;
  padding: 64px 48px;
}

.cta-icon { font-size: 52px; margin-bottom: 20px; }

.cta-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(36px, 6vw, 58px);
  letter-spacing: 2px;
  line-height: 1;
  margin-bottom: 20px;
}

.cta-title span {
  background: linear-gradient(90deg, var(--fire-orange), var(--fire-yellow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-text {
  color: var(--gray-mid);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 36px;
}

.btn-whatsapp-big {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 20px 48px;
  background: linear-gradient(135deg, #25D366, #128C7E);
  color: white;
  text-decoration: none;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: 8px;
  transition: transform 0.25s, box-shadow 0.25s;
  box-shadow: 0 6px 30px rgba(37,211,102,0.35);
}

.btn-whatsapp-big:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 40px rgba(37,211,102,0.55);
}

.wa-icon { font-size: 24px; }

/* === FOOTER === */
footer {
  background: rgba(0,0,0,0.9);
  border-top: 1px solid rgba(255,80,0,0.15);
  padding: 48px 5% 32px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.footer-brand .logo-text {
  font-size: 30px;
  display: block;
  margin-bottom: 8px;
}

.footer-brand p {
  font-size: 12px;
  color: var(--gray-mid);
  max-width: 220px;
  line-height: 1.7;
}

.footer-links h4, .footer-contact h4 {
  font-family: 'Rajdhani', sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--fire-orange);
  margin-bottom: 16px;
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: var(--gray-mid);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s;
}

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

.footer-contact p {
  font-size: 13px;
  color: var(--gray-mid);
  line-height: 1.9;
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 12px;
  color: var(--gray-mid);
  letter-spacing: 0.5px;
}

/* === FLOATING WA BUTTON === */
.wa-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 500;
  display: flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, #25D366, #128C7E);
  color: white;
  text-decoration: none;
  padding: 14px 22px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.5px;
  box-shadow: 0 6px 30px rgba(37,211,102,0.45);
  transition: transform 0.25s, box-shadow 0.25s;
  animation: pulse-wa 2.5s ease infinite;
}

.wa-float:hover {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 12px 40px rgba(37,211,102,0.6);
}

/* === ANIMATIONS === */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes pulse-wa {
  0%, 100% { box-shadow: 0 6px 30px rgba(37,211,102,0.45); }
  50% { box-shadow: 0 6px 45px rgba(37,211,102,0.7), 0 0 0 8px rgba(37,211,102,0.1); }
}

@keyframes flicker {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.92; }
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero-stats { gap: 24px; }
  .zone-container { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; }
  .cta-box { padding: 40px 24px; }
  .logo-showcase { gap: 24px; }
}

/* === CARRUSEL DE IMÁGENES (Chimeneas / Calentadores) === */
.carousel-container {
  position: relative;
}

.carousel-track {
  position: absolute;
  inset: 0;
}

.carousel-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.9s ease;
}

.carousel-slide.active {
  opacity: 1;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.carousel-slide.fallback-slide img {
  object-fit: contain;
  background: #0a0a0a;
}

/* Dots (puntitos indicadores) */
.carousel-dots {
  position: absolute;
  bottom: 36px;
  left: 0; right: 0;
  display: flex;
  justify-content: center;
  gap: 7px;
  z-index: 10;
}

.carousel-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  border: 1px solid rgba(255, 100, 0, 0.4);
  cursor: pointer;
  transition: background 0.3s, transform 0.3s;
}

.carousel-dot.active {
  background: #FF6600;
  transform: scale(1.3);
  border-color: #FF6600;
}

/* Badge de cantidad de fotos */
.carousel-count {
  position: absolute;
  top: 10px; right: 10px;
  background: rgba(0,0,0,0.65);
  color: #FF6600;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 4px 9px;
  border-radius: 20px;
  border: 1px solid rgba(255,100,0,0.3);
  z-index: 10;
}

/* === BLOG === */
.blog-main {
  max-width: 760px;
  margin: 0 auto;
  padding: 140px 24px 80px;
}

.blog-breadcrumb {
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gray-mid);
  margin-bottom: 18px;
}

.blog-breadcrumb a {
  color: var(--fire-orange);
  text-decoration: none;
}

.blog-breadcrumb a:hover { text-decoration: underline; }

.blog-article h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(32px, 6vw, 52px);
  letter-spacing: 1px;
  line-height: 1.1;
  margin-bottom: 14px;
  background: linear-gradient(90deg, var(--fire-orange), var(--fire-yellow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.blog-meta {
  font-size: 12px;
  color: var(--gray-mid);
  letter-spacing: 1px;
  margin-bottom: 32px;
  text-transform: uppercase;
}

.blog-article h2 {
  font-family: 'Rajdhani', sans-serif;
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 700;
  color: var(--fire-orange);
  margin: 36px 0 14px;
  letter-spacing: 0.5px;
}

.blog-article h3 {
  font-family: 'Rajdhani', sans-serif;
  font-size: 19px;
  font-weight: 700;
  color: var(--white);
  margin: 24px 0 10px;
}

.blog-article p, .blog-article li {
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray-light);
  margin-bottom: 14px;
}

.blog-article ul, .blog-article ol {
  margin: 0 0 14px 22px;
}

.blog-article strong { color: var(--white); }

.blog-cta {
  margin-top: 48px;
  padding: 28px;
  background: linear-gradient(145deg, var(--dark-card2), var(--dark-card));
  border: 1px solid rgba(255,80,0,0.2);
  border-radius: 14px;
  text-align: center;
}

.blog-cta p {
  margin-bottom: 16px;
  color: var(--gray-light);
}

/* === BLOG INDEX === */
.blog-list {
  display: grid;
  gap: 24px;
  margin-top: 32px;
}

.blog-card {
  display: block;
  background: linear-gradient(145deg, var(--dark-card2), var(--dark-card));
  border: 1px solid rgba(255,80,0,0.12);
  border-radius: 12px;
  padding: 24px 28px;
  text-decoration: none;
  transition: transform 0.3s, border-color 0.3s;
}

.blog-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255,100,0,0.4);
}

.blog-card h2 {
  font-family: 'Rajdhani', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.blog-card p {
  font-size: 14px;
  color: var(--gray-light);
  line-height: 1.6;
}

.blog-card .blog-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--fire-orange);
  margin-bottom: 10px;
}