/* ===================================================================
   Houston Aircon — Design system
   Corporate palette per brand manual: Red #e51c17, Blue #1d71b8, Gray #616160
   Corporate typeface: Montserrat
=================================================================== */

:root {
  --navy-900: #0a2e4a;
  --navy-800: #0d3a5c;
  --navy-700: #155a91;
  --navy-600: #1d71b8;
  --navy-500: #2f8fd1;
  --red-600: #e51c17;
  --red-700: #b8130f;
  --brand-gray: #616160;
  --gray-50: #f5f7fb;
  --gray-100: #eef1f7;
  --gray-200: #dde3ee;
  --gray-500: #6b7488;
  --gray-600: #5b6577;
  --white: #ffffff;

  --font-head: 'Montserrat', sans-serif;
  --font-body: 'Montserrat', sans-serif;
  --font-script: 'Caveat', cursive;

  --shadow-sm: 0 2px 10px rgba(13,58,92,0.08);
  --shadow-md: 0 12px 30px rgba(13,58,92,0.12);
  --shadow-lg: 0 22px 50px rgba(13,58,92,0.20);
  --radius: 10px;
}

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

html { scroll-behavior:smooth; }

body {
  font-family: var(--font-body);
  color: var(--navy-800);
  background: var(--white);
  line-height:1.6;
  overflow-x:hidden;
}

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

a { color:inherit; text-decoration:none; }

ul { list-style:none; }

.container {
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

h1,h2,h3,h4 { font-family: var(--font-head); font-weight:800; letter-spacing:-.3px; color:var(--navy-800); }

.eyebrow {
  font-family: var(--font-head);
  color: var(--red-600);
  text-transform:uppercase;
  font-size:.8rem;
  letter-spacing:2.5px;
  font-weight:600;
  margin-bottom:10px;
}
.eyebrow.center { text-align:center; }
.eyebrow-light { color:#ff8a8f; }

.section-title {
  font-size:clamp(1.7rem, 3vw, 2.3rem);
  line-height:1.2;
  margin-bottom:18px;
}
.section-title.center { text-align:center; margin-left:auto; margin-right:auto; max-width:720px; }

/* ---------- Buttons ---------- */
.btn {
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family: var(--font-head);
  font-weight:600;
  letter-spacing:1px;
  font-size:.82rem;
  padding:13px 24px;
  border-radius:6px;
  border:2px solid transparent;
  cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  white-space:nowrap;
}
.btn-red { background:var(--red-600); color:#fff; box-shadow:var(--shadow-sm); }
.btn-red:hover { background:var(--red-700); transform:translateY(-2px); box-shadow:var(--shadow-md); }
.btn-outline-light { background:transparent; border-color:rgba(255,255,255,.5); color:#fff; }
.btn-outline-light:hover { background:rgba(255,255,255,.12); border-color:#fff; transform:translateY(-2px); }
.btn-lg { padding:16px 30px; font-size:.88rem; }
.btn-block { width:100%; justify-content:center; margin-top:8px; }
.call-pill { padding:11px 20px; }

/* ---------- Reveal animation ---------- */
.reveal { opacity:0; transform:translateY(28px); transition:opacity .7s ease, transform .7s ease; }
.reveal.in-view { opacity:1; transform:translateY(0); }
.reveal-delay-1.in-view { transition-delay:.1s; }
.reveal-delay-2.in-view { transition-delay:.2s; }
.reveal-delay-3.in-view { transition-delay:.3s; }

/* ===================================================================
   HEADER
=================================================================== */
.site-header {
  position:sticky; top:0; z-index:1000;
  background:var(--white);
  box-shadow:0 1px 0 rgba(13,58,92,.08);
}
.header-inner {
  display:flex; align-items:center; gap:26px;
  height:82px;
}
.brand { display:flex; align-items:center; gap:12px; margin-right:auto; }
.brand-logo { height:52px; width:auto; }

.main-nav { display:flex; gap:28px; }
.main-nav a {
  font-family:var(--font-head);
  font-size:.82rem;
  font-weight:500;
  letter-spacing:.8px;
  text-transform:uppercase;
  color:var(--navy-700);
  position:relative;
  padding:6px 0;
}
.main-nav a::after {
  content:""; position:absolute; left:0; bottom:0; width:0; height:2px;
  background:var(--red-600); transition:width .25s ease;
}
.main-nav a:hover::after, .main-nav a.active::after { width:100%; }
.main-nav a.active { color:var(--red-600); }

.nav-toggle { display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:6px; }
.nav-toggle span { width:24px; height:2px; background:var(--navy-800); border-radius:2px; }

/* ===================================================================
   HERO
=================================================================== */
.hero { position:relative; padding:110px 0 120px; overflow:hidden; }
.hero-bg { position:absolute; inset:0; z-index:-1; }
.hero-bg img {
  width:100%; height:100%;
  object-fit:cover;
  object-position:center 30%;
}
.hero-overlay {
  position:absolute; inset:0;
  background:
    linear-gradient(90deg, rgba(10,30,50,.93) 0%, rgba(10,30,50,.82) 38%, rgba(13,58,92,.45) 68%, rgba(13,58,92,.15) 100%),
    linear-gradient(0deg, rgba(10,30,50,.55) 0%, transparent 35%);
}
.hero-inner {
  display:grid;
  grid-template-columns:minmax(0, 660px);
  align-items:center;
}
.hero-copy h1 {
  color:#fff;
  font-size:clamp(2.2rem, 4.4vw, 3.4rem);
  line-height:1.08;
  max-width:640px;
}
.hero-rule { width:70px; height:4px; background:var(--red-600); margin:22px 0; border-radius:2px; }
.hero-sub { color:#c7d1e6; font-size:1.05rem; max-width:520px; margin-bottom:32px; }
.hero-actions { display:flex; gap:16px; flex-wrap:wrap; margin-bottom:36px; }
.hero-badges { display:flex; gap:30px; flex-wrap:wrap; }
.hero-badges li {
  display:flex; align-items:center; gap:8px;
  color:#dfe6f5; font-size:.85rem; font-weight:600;
  font-family:var(--font-head); letter-spacing:.3px; text-transform:uppercase;
}
.hero-badges svg { color:var(--red-600); flex-shrink:0; }


/* ===================================================================
   SERVICES
=================================================================== */
.services { padding:96px 0; background:var(--white); }
.service-grid {
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:28px;
  margin-top:50px;
}
.service-card {
  background:var(--white);
  border:1px solid var(--gray-200);
  border-radius:var(--radius);
  overflow:hidden;
  position:relative;
  padding-bottom:26px;
  text-align:center;
  transition:transform .25s ease, box-shadow .25s ease;
}
.service-card:hover { transform:translateY(-8px); box-shadow:var(--shadow-lg); }
.service-media { height:150px; overflow:hidden; }
.service-media svg { width:100%; height:100%; }
.service-media img {
  width:100%; height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.service-card:hover .service-media img { transform:scale(1.06); }
/* z-index keeps the badge above the photo — without it the image paints over it */
.service-icon {
  position:relative;
  z-index:2;
  display:flex; align-items:center; justify-content:center;
  width:56px; height:56px; border-radius:50%;
  background:var(--navy-700);
  margin:-28px auto 16px;
  border:4px solid #fff;
  box-shadow:var(--shadow-sm);
}
.service-card h3 { font-size:1.15rem; margin-bottom:10px; padding:0 20px; }
.service-card p { color:var(--gray-600); font-size:.92rem; padding:0 22px; margin-bottom:16px; }
.learn-more {
  font-family:var(--font-head); font-size:.78rem; font-weight:600;
  letter-spacing:1px; text-transform:uppercase; color:var(--navy-700);
  display:inline-flex; gap:6px; align-items:center;
}
.learn-more span { color:var(--red-600); transition:transform .2s ease; }
.service-card:hover .learn-more span { transform:translateX(5px); }

/* ===================================================================
   ABOUT
=================================================================== */
.about { padding:100px 0; background:var(--gray-50); }
.about-inner {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:center;
}
.about-art img {
  width:100%; height:100%; max-height:440px;
  object-fit:cover;
  border-radius:16px;
  box-shadow:var(--shadow-md);
}
.about-text { color:var(--gray-600); margin-bottom:26px; max-width:520px; }
.check-grid {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px 24px;
}
.check-grid li {
  display:flex; align-items:center; gap:10px;
  font-weight:600; font-size:.95rem; color:var(--navy-800);
}
.check-grid li::before {
  content:"";
  flex-shrink:0;
  width:20px; height:20px; border-radius:50%;
  background:var(--navy-700);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:center;
  background-size:12px 12px;
}

/* ===================================================================
   WHY CHOOSE US
=================================================================== */
.why { padding:80px 0; background:var(--navy-800); }
.why .eyebrow.center { color:#ff8a8f; }
.why-grid {
  margin-top:44px;
  display:grid;
  grid-template-columns:repeat(6, 1fr);
  gap:24px;
}
.why-item { text-align:center; color:#fff; padding:0 6px; }
.why-icon {
  display:flex; align-items:center; justify-content:center;
  width:64px; height:64px; border-radius:50%;
  background:linear-gradient(135deg, var(--red-600), var(--red-700));
  margin:0 auto 16px;
  box-shadow:0 10px 24px rgba(229,28,23,.35);
}
.why-item h4 { color:#fff; font-size:1rem; margin-bottom:8px; }
.why-item p { color:#a9b4cc; font-size:.85rem; }

/* ===================================================================
   RECENT PROJECTS
=================================================================== */
.projects { padding:96px 0; background:var(--white); }
.project-grid {
  margin-top:44px;
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:16px;
}
.project-tile {
  position:relative;
  border-radius:8px; overflow:hidden; aspect-ratio:5/4;
  box-shadow:var(--shadow-sm);
  transition:transform .3s ease, box-shadow .3s ease;
  margin:0;
}
.project-tile img {
  width:100%; height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.project-tile figcaption {
  position:absolute; left:0; right:0; bottom:0;
  padding:26px 14px 12px;
  font-family:var(--font-head);
  font-size:.75rem; font-weight:700;
  letter-spacing:.6px; text-transform:uppercase;
  color:#fff;
  background:linear-gradient(0deg, rgba(10,30,50,.92) 0%, rgba(10,30,50,.55) 55%, transparent 100%);
  opacity:0;
  transform:translateY(8px);
  transition:opacity .3s ease, transform .3s ease;
}
.project-tile:hover { transform:translateY(-4px); box-shadow:var(--shadow-lg); }
.project-tile:hover img { transform:scale(1.07); }
.project-tile:hover figcaption { opacity:1; transform:translateY(0); }

/* ===================================================================
   CTA BANNER
=================================================================== */
.cta-banner { background:linear-gradient(120deg, var(--red-700), var(--red-600)); padding:38px 0; }
.cta-inner { display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap; }
.cta-inner p { color:#fff; font-family:var(--font-head); font-size:1.5rem; font-weight:600; line-height:1.25; }
.cta-call { display:flex; align-items:center; gap:14px; background:#fff; padding:12px 26px; border-radius:8px; transition:transform .2s ease; }
.cta-call:hover { transform:translateY(-2px); }
.cta-call-icon { width:42px; height:42px; border-radius:50%; background:var(--gray-100); display:flex; align-items:center; justify-content:center; }
.cta-call span:last-child { font-family:var(--font-head); color:var(--navy-800); font-size:.82rem; line-height:1.3; }
.cta-call strong { font-size:1.2rem; color:var(--red-600); }

/* ===================================================================
   REVIEWS
=================================================================== */
.reviews { padding:96px 0; background:var(--gray-50); }
.review-grid {
  margin-top:44px;
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:22px;
}
.review-card {
  background:#fff; border:1px solid var(--gray-200); border-radius:var(--radius);
  padding:28px 24px; box-shadow:var(--shadow-sm);
  transition:transform .25s ease, box-shadow .25s ease;
}
.review-card:hover { transform:translateY(-6px); box-shadow:var(--shadow-md); }
.stars { color:#f5a623; letter-spacing:2px; margin-bottom:14px; }
.review-card p { font-size:.9rem; color:var(--gray-600); margin-bottom:16px; }
.review-author { font-family:var(--font-head); font-weight:600; font-size:.85rem; color:var(--navy-800); }
.review-card-google { text-align:center; background:var(--navy-800); color:#fff; }
.google-logo { font-family:var(--font-head); font-weight:700; font-size:1.3rem; margin-bottom:10px; color:#fff; }
.review-card-google p { color:#c7d1e6; }

/* ===================================================================
   SERVICE AREAS
=================================================================== */
.areas { padding:96px 0; background:#fff; }
.areas-inner {
  margin-top:40px;
  display:grid;
  grid-template-columns:1fr 1.3fr;
  gap:40px;
  align-items:center;
}
.areas-list {
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:14px 20px;
}
.areas-list li {
  font-family:var(--font-head); font-weight:500; font-size:.95rem;
  display:flex; align-items:center; gap:8px; color:var(--navy-800);
}
.areas-list li::before {
  content:""; width:8px; height:8px; border-radius:50%; background:var(--red-600); flex-shrink:0;
}
.areas-map iframe {
  display:block;
  width:100%;
  height:380px;
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
}

/* ===================================================================
   CONTACT
=================================================================== */
.contact { padding:96px 0; background:var(--gray-50); }
.contact-inner {
  display:grid;
  grid-template-columns:1.3fr 1fr;
  gap:50px;
}
.contact-form form { display:flex; flex-direction:column; gap:16px; margin-top:24px; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
input, select, textarea {
  font-family:var(--font-body);
  font-size:.95rem;
  padding:14px 16px;
  border:1px solid var(--gray-200);
  border-radius:6px;
  background:#fff;
  color:var(--navy-800);
  width:100%;
}
input:focus, select:focus, textarea:focus {
  outline:none; border-color:var(--red-600); box-shadow:0 0 0 3px rgba(229,28,23,.12);
}
textarea { resize:vertical; }
.contact-form .btn-lg { align-self:flex-start; }
.form-note { font-size:.9rem; font-weight:600; min-height:1.2em; }
.form-note[data-state="error"]   { color:var(--red-600); }
.form-note[data-state="pending"] { color:var(--gray-600); }
.form-note[data-state="success"] { color:#1b7a3d; }
button[disabled] { opacity:.65; cursor:not-allowed; }

.contact-info { background:var(--navy-800); border-radius:var(--radius); padding:34px 28px; align-self:start; }
.contact-info ul { display:flex; flex-direction:column; gap:26px; }
.contact-info li { display:flex; gap:16px; align-items:flex-start; }
.info-icon { width:42px; height:42px; border-radius:50%; background:rgba(255,255,255,.08); display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.contact-info li strong { color:#fff; display:block; font-size:.98rem; margin-bottom:2px; }
.contact-info li span { color:#a9b4cc; font-size:.85rem; }

/* ===================================================================
   FOOTER
=================================================================== */
.site-footer { background:var(--navy-900); color:#c7d1e6; padding:64px 0 30px; }
.footer-inner {
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand { display:flex; flex-direction:column; align-items:flex-start; gap:12px; }
/* El logo a color necesita fondo claro: sobre el navy el cohete gris y el
   "We do it!" quedan ilegibles. La placa respeta el área de resguardo. */
.footer-logo-plate {
  display:inline-block;
  background:#fff;
  padding:14px 20px;
  border-radius:10px;
  line-height:0;
}
.footer-copy { font-size:.8rem; color:#7b87a3; margin-top:10px; }
.footer-col h5 {
  font-family:var(--font-head); color:#fff; text-transform:uppercase;
  letter-spacing:1.2px; font-size:.85rem; margin-bottom:18px;
}
.footer-col { display:flex; flex-direction:column; gap:11px; }
.footer-col a, .footer-col span { font-size:.88rem; color:#a9b4cc; }
.footer-col a:hover { color:var(--red-600); }

/* ===================================================================
   MOBILE CALL FAB
=================================================================== */
.mobile-call-fab {
  display:none;
  position:fixed; right:18px; bottom:18px; z-index:1200;
  width:56px; height:56px; border-radius:50%;
  background:var(--red-600); align-items:center; justify-content:center;
  box-shadow:0 10px 26px rgba(229,28,23,.45);
}

/* ===================================================================
   RESPONSIVE
=================================================================== */
@media (max-width: 1024px) {
  .service-grid { grid-template-columns:repeat(2, 1fr); }
  .why-grid { grid-template-columns:repeat(3, 1fr); }
  .project-grid { grid-template-columns:repeat(2, 1fr); }
  .review-grid { grid-template-columns:repeat(2, 1fr); }
  .about-inner, .contact-inner, .areas-inner { grid-template-columns:1fr; }
  .footer-inner { grid-template-columns:1fr 1fr; }
}

@media (max-width: 860px) {
  .main-nav {
    display:flex;
    flex-direction:column;
    position:absolute;
    top:100%; left:0; right:0;
    background:#fff;
    padding:10px 24px 20px;
    gap:4px;
    box-shadow:var(--shadow-md);
    transform:translateY(-8px);
    opacity:0;
    pointer-events:none;
    transition:opacity .2s ease, transform .2s ease;
  }
  .main-nav.open { opacity:1; transform:translateY(0); pointer-events:auto; }
  .main-nav a { padding:12px 0; border-bottom:1px solid var(--gray-100); }
  .call-pill span { display:none; }
  .hero { padding:80px 0 90px; }
  .hero-inner { grid-template-columns:1fr; text-align:center; }
  .hero-copy { display:flex; flex-direction:column; align-items:center; }
  .hero-badges { justify-content:center; }
  .hero-actions { justify-content:center; }
  .hero-overlay {
    background:
      linear-gradient(0deg, rgba(10,30,50,.9) 0%, rgba(10,30,50,.75) 60%, rgba(13,58,92,.55) 100%);
  }
  .nav-toggle { display:flex; }
  .mobile-call-fab { display:flex; }
}

@media (max-width: 640px) {
  .header-inner { height:70px; }
  .brand-logo { height:40px; }
  .service-grid, .why-grid, .project-grid, .review-grid { grid-template-columns:1fr 1fr; }
  .check-grid { grid-template-columns:1fr; }
  .areas-list { grid-template-columns:1fr 1fr; }
  .areas-map iframe { height:300px; }
  .form-row { grid-template-columns:1fr; }
  .cta-inner { justify-content:center; text-align:center; }
  .footer-inner { grid-template-columns:1fr; text-align:left; }
  .call-pill { padding:11px; }
}