:root {
  --blue-deep: #0B1F33;
  --blue-industrial: #12395B;
  --blue-tech: #00A3E0;
  --green-tech: #1FAF8F;
  --steel: #66737F;
  --light: #E9EEF2;
  --white: #FFFFFF;
  --text: #163047;
  --radius: 18px;
  --shadow: 0 18px 40px rgba(11, 31, 51, 0.08);
  --shadow-soft: 0 10px 24px rgba(11, 31, 51, 0.06);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; }

.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(11, 31, 51, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nav-wrap {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 78px; gap: 1rem;
}
.brand { display: flex; align-items: center; gap: .9rem; color: var(--white); }
.brand-mark {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--blue-tech), var(--green-tech));
  color: var(--blue-deep); font-weight: 800;
}
.brand-text strong { display: block; font-size: 1rem; letter-spacing: .08em; }
.brand-text small { display: block; opacity: .78; }
.main-nav { display: flex; gap: 1.3rem; align-items: center; }
.main-nav a { color: rgba(255,255,255,.82); font-weight: 600; }
.main-nav a.active, .main-nav a:hover { color: var(--white); }

.nav-toggle { display: none; background: transparent; border: 0; cursor: pointer; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: #fff; margin: 5px 0; }

.hero {
  position: relative; min-height: 88vh; display: flex; align-items: center;
  background:
    radial-gradient(circle at 20% 20%, rgba(0,163,224,.22), transparent 28%),
    radial-gradient(circle at 80% 20%, rgba(31,175,143,.18), transparent 22%),
    linear-gradient(120deg, rgba(11,31,51,.95), rgba(18,57,91,.88)),
    url('https://commons.wikimedia.org/wiki/Special:FilePath/Evaporative_Cooling_Tower.jpg?width=1800') center/cover no-repeat;
  overflow: hidden;
}
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11,31,51,.55), rgba(11,31,51,.2)); }
.hero-content { position: relative; color: var(--white); padding: 7rem 0; }
.eyebrow {
  display: inline-flex; padding: .42rem .8rem; border-radius: 999px; margin-bottom: 1rem;
  background: rgba(255,255,255,.08); color: #bfe8ff; font-size: .78rem; font-weight: 700; letter-spacing: .12em;
}
.hero h1, .page-banner h1 { font-size: clamp(2.5rem, 5vw, 4.6rem); line-height: 1.05; margin: 0 0 1rem; }
.hero p, .page-banner p { font-size: 1.08rem; color: rgba(255,255,255,.88); max-width: 720px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2rem; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: 0.95rem 1.35rem; border-radius: 999px; font-weight: 700; transition: .25s ease;
}
.btn-primary { background: linear-gradient(135deg, var(--blue-tech), var(--green-tech)); color: var(--blue-deep); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-soft); }
.btn-secondary { border: 1px solid rgba(255,255,255,.24); color: var(--white); }
.btn-secondary:hover { background: rgba(255,255,255,.08); }

.metrics-bar { background: var(--blue-deep); color: var(--white); }
.metrics-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; padding: 1.15rem 0;
}
.metrics-grid div { padding: .8rem 1rem; border-left: 1px solid rgba(255,255,255,.12); }
.metrics-grid div:first-child { border-left: 0; }
.metrics-grid strong { display: block; font-size: 1rem; margin-bottom: .25rem; }
.metrics-grid span { color: rgba(255,255,255,.75); font-size: .95rem; }

.section { padding: 5.5rem 0; }
.alt-bg { background: linear-gradient(180deg, #f6f9fb, #eef4f7); }
.section-head { text-align: center; max-width: 780px; margin: 0 auto 2.5rem; }
.section-head.left { text-align: left; margin-left: 0; }
.section h2 { font-size: clamp(2rem, 3vw, 3rem); line-height: 1.15; margin: 0 0 1rem; color: var(--blue-deep); }
.section p { color: #496175; }
.cards-grid { display: grid; gap: 1.4rem; }
.cards-grid.three { grid-template-columns: repeat(3, 1fr); }
.cards-grid.four { grid-template-columns: repeat(4, 1fr); }
.card, .panel-card, .info-card, .map-card, .portfolio-item {
  background: var(--white); border: 1px solid rgba(18,57,91,.08); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 1.6rem;
}
.card h3, .panel-card h3, .info-card h3 { margin-top: 0; color: var(--blue-deep); }
.icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(0,163,224,.12), rgba(31,175,143,.14));
  color: var(--blue-industrial); font-weight: 800; margin-bottom: 1rem;
}
.benefit { margin-top: 1rem; padding-top: .9rem; border-top: 1px solid rgba(18,57,91,.08); color: var(--steel); }

.two-col { display: grid; grid-template-columns: 1.1fr .9fr; gap: 2rem; align-items: center; }
.check-list { list-style: none; padding: 0; margin: 1.5rem 0 0; }
.check-list li { padding-left: 1.6rem; position: relative; margin: .7rem 0; }
.check-list li::before { content: '•'; color: var(--green-tech); position: absolute; left: 0; font-size: 1.2rem; }
.mini-stats { display: grid; gap: 1rem; margin-top: 1.25rem; }
.mini-stats div { padding: 1rem; border-radius: 14px; background: var(--light); }
.mini-stats strong { display: block; color: var(--blue-deep); }

.page-banner { padding: 6rem 0 3.5rem; }
.banner-dark { background: linear-gradient(135deg, var(--blue-deep), var(--blue-industrial)); color: var(--white); }
.banner-light { background: linear-gradient(180deg, #f7fafc, #edf3f6); }
.banner-light p { color: #4a6276; }
.banner-light .eyebrow { background: rgba(18,57,91,.08); color: var(--blue-industrial); }

.timeline-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.timeline-item {
  padding: 1.3rem; border-radius: 16px; background: var(--blue-deep); color: var(--white);
  box-shadow: var(--shadow-soft);
}
.timeline-item span { display: block; margin-top: .5rem; color: rgba(255,255,255,.8); }

.portfolio-list { display: grid; gap: 1.4rem; }
.portfolio-item h2 { font-size: 1.55rem; margin-bottom: .6rem; }
.portfolio-tag {
  display: inline-block; font-size: .82rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--blue-industrial); background: rgba(0,163,224,.1); border-radius: 999px; padding: .4rem .8rem; margin-bottom: .9rem;
}
.result-box {
  margin-top: 1rem; padding: 1rem 1.1rem; border-left: 4px solid var(--green-tech); background: linear-gradient(180deg, #f8fbfc, #eff7f5);
  border-radius: 10px;
}

.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 1.6rem; }
.contact-form { display: grid; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
label { display: block; font-weight: 700; margin-bottom: .45rem; color: var(--blue-deep); }
input, select, textarea {
  width: 100%; padding: .95rem 1rem; border-radius: 12px; border: 1px solid rgba(18,57,91,.14);
  background: #fff; font: inherit; color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(0,163,224,.14); border-color: var(--blue-tech); }
.input-error { border-color: #d14b4b !important; }
.honeypot { display: none; }
.alert { padding: .95rem 1rem; border-radius: 12px; margin-bottom: 1rem; font-weight: 600; }
.alert.success { background: #e7f7f1; color: #136d58; }
.alert.error { background: #fff1f1; color: #a33131; }
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { margin: .8rem 0; }
.map-card iframe { width: 100%; min-height: 320px; border: 0; border-radius: 14px; }

.site-footer { background: var(--blue-deep); color: rgba(255,255,255,.82); padding-top: 3.2rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 1.5rem; }
.site-footer h3, .site-footer h4 { color: var(--white); margin-top: 0; }
.footer-list { list-style: none; padding: 0; margin: 0; }
.footer-list li { margin: .65rem 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); margin-top: 2rem; padding: 1rem 0 1.4rem; font-size: .92rem; }

.whatsapp-float {
  position: fixed; right: 18px; bottom: 18px; width: 58px; height: 58px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 800; color: var(--white);
  background: linear-gradient(135deg, #22c55e, #1FAF8F); box-shadow: 0 14px 30px rgba(0,0,0,.18); z-index: 1200;
}

@media (max-width: 960px) {
  .cards-grid.three, .cards-grid.four, .metrics-grid, .timeline-grid, .contact-grid, .two-col, .footer-grid, .hero-grid, .image-feature-grid { grid-template-columns: 1fr 1fr; }
  .brand-logo { width: 142px; }
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .main-nav {
    position: absolute; top: 78px; left: 0; right: 0; background: var(--blue-deep);
    display: none; flex-direction: column; align-items: flex-start; padding: 1rem; border-top: 1px solid rgba(255,255,255,.08);
  }
  .main-nav.open { display: flex; }
  .cards-grid.three, .cards-grid.four, .metrics-grid, .timeline-grid, .contact-grid, .two-col, .footer-grid, .form-row, .hero-grid, .image-feature-grid { grid-template-columns: 1fr; }
  .hero { min-height: 78vh; }
  .section { padding: 4rem 0; }
}


.brand-logo {
  width: 170px; height: auto; display: block;
  filter: drop-shadow(0 8px 20px rgba(0,0,0,.12));
  background: rgba(255,255,255,.98); border-radius: 10px; padding: .25rem .5rem;
}
.brand-text { display:none; }

.hero-grid { display:grid; grid-template-columns: 1.05fr .95fr; gap:2rem; align-items:center; }
.hero-visual-card {
  position: relative; z-index: 1;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 24px;
  padding: 1rem;
  backdrop-filter: blur(14px);
  box-shadow: 0 22px 50px rgba(0,0,0,.18);
}
.hero-visual-card img { border-radius: 18px; }
.hero-badges { display:grid; grid-template-columns:1fr 1fr; gap:.85rem; margin-top:1rem; }
.hero-badge { padding:.85rem 1rem; border-radius:16px; background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.12); }
.hero-badge strong { display:block; color:#fff; margin-bottom:.2rem; }
.hero-badge span { color:rgba(255,255,255,.8); font-size:.92rem; }
.image-feature-grid { display:grid; grid-template-columns: repeat(2, 1fr); gap:1.4rem; }
.image-card { overflow:hidden; padding:0; border-radius: 22px; }
.image-card img { width:100%; aspect-ratio:16/10; object-fit:cover; }
.image-card-body { padding:1.2rem 1.3rem 1.4rem; }
.image-card h3 { margin:.1rem 0 .55rem; }
.cta-band { background: linear-gradient(135deg, var(--blue-deep), var(--blue-industrial)); color: var(--white); }
.cta-band .cta-wrap { display:flex; justify-content:space-between; gap:1.5rem; align-items:center; }
.cta-band h2 { color: var(--white); margin-bottom:.4rem; }
.cta-band p { color: rgba(255,255,255,.82); margin:0; max-width:780px; }
.note-inline { display:inline-flex; padding:.45rem .7rem; border-radius:999px; background:rgba(31,175,143,.12); color:var(--blue-industrial); font-weight:700; font-size:.82rem; margin-top:.5rem; }

@media (max-width: 768px) { .cta-band .cta-wrap { flex-direction:column; align-items:flex-start; } .brand-logo { width:132px; } }

/* V2: fotografías reales estilo industrial premium */
.brand-logo { width: 158px; height: auto; filter: brightness(1.08); }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 2rem; align-items: center; }
.hero-visual-card { padding: .75rem; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); border-radius: 24px; box-shadow: 0 24px 70px rgba(0,0,0,.24); backdrop-filter: blur(10px); }
.hero-visual-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 18px; }
.note-inline { display: block; margin-top: .7rem; color: rgba(255,255,255,.76); font-size: .82rem; }
.image-feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.35rem; }
.image-card { padding: 0; overflow: hidden; }
.image-card img { width: 100%; height: 210px; object-fit: cover; filter: saturate(.94) contrast(1.04); }
.image-card-body { padding: 1.35rem; }
.image-card-body p { margin-bottom: 0; }
.photo-premium::after { content: ''; display: block; height: 3px; margin: .75rem .25rem 0; border-radius: 999px; background: linear-gradient(90deg, var(--blue-tech), var(--green-tech)); opacity: .9; }