/* Palette: dark navy + vivid red + ice blue, HVAC-contractor feel */
:root {
  --navy: #0a1628;
  --navy-mid: #121f36;
  --navy-light: #1a2d4a;
  --red: #e02020;
  --red-hover: #c41818;
  --ice: #4dc9f6;
  --ice-glow: rgba(77,201,246,.15);
  --white: #ffffff;
  --gray: #94a3b8;
  --text: #e2e8f0;
  color-scheme: dark;
}

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

html{scroll-behavior:smooth}

body{
  font-family:'Barlow',system-ui,sans-serif;
  background:var(--navy);
  color:var(--text);
  line-height:1.6;
  overflow-x:hidden;
}

/* ── NAV ── */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 24px;
  background:rgba(10,22,40,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(77,201,246,.12);
}
.nav img{height:48px}
.nav-links{display:flex;gap:24px;align-items:center}
.nav-links a{color:var(--gray);text-decoration:none;font-weight:600;font-size:.9rem;transition:color .2s}
.nav-links a:hover{color:var(--ice)}
.nav-phone{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--red);color:var(--white);
  padding:10px 20px;border-radius:6px;
  font-weight:700;font-size:.95rem;
  text-decoration:none;transition:background .2s;
}
.nav-phone:hover{background:var(--red-hover)}

/* ── HERO ── */
.hero{
  position:relative;
  padding:140px 24px 80px;
  text-align:center;
  background:
    radial-gradient(ellipse at 70% 30%, var(--ice-glow), transparent 50%),
    linear-gradient(180deg, var(--navy) 0%, var(--navy-mid) 100%);
  overflow:hidden;
}
.hero::after{
  content:'';position:absolute;bottom:0;left:0;right:0;height:120px;
  background:linear-gradient(transparent,var(--navy));
}
.hero-logo{max-width:320px;margin:0 auto 32px;display:block}
.hero h1{
  font-family:'Barlow Condensed','Barlow',sans-serif;
  font-weight:800;font-size:clamp(2.2rem,5vw,3.6rem);
  color:var(--white);
  text-transform:uppercase;letter-spacing:.03em;
  margin-bottom:8px;
}
.hero h1 span{color:var(--red)}
.hero p.sub{
  font-size:1.15rem;color:var(--gray);
  max-width:520px;margin:0 auto 32px;
}
.hero-ctas{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;position:relative;z-index:1}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 28px;border-radius:6px;
  font-weight:700;font-size:1rem;
  text-decoration:none;cursor:pointer;border:none;
  transition:background .2s, transform .15s;
}
.btn:active{transform:scale(.97)}
.btn-red{background:var(--red);color:var(--white)}
.btn-red:hover{background:var(--red-hover)}
.btn-outline{background:transparent;color:var(--ice);border:2px solid var(--ice)}
.btn-outline:hover{background:var(--ice);color:var(--navy)}

/* ── SERVICES ── */
.services{padding:80px 24px;max-width:1100px;margin:0 auto}
.section-title{
  text-align:center;margin-bottom:48px;
}
.section-title h2{
  font-family:'Barlow Condensed','Barlow',sans-serif;
  font-weight:700;font-size:clamp(1.6rem,3.5vw,2.4rem);
  color:var(--white);text-transform:uppercase;
}
.section-title h2 span{color:var(--red)}
.section-title .bar{width:60px;height:4px;background:var(--red);margin:12px auto 0;border-radius:2px}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px}
.card{
  background:var(--navy-mid);
  border:1px solid rgba(77,201,246,.08);
  border-radius:12px;
  padding:32px 24px;
  text-align:center;
  transition:border-color .3s, transform .2s;
}
.card:hover{border-color:var(--ice);transform:translateY(-4px)}
.card-icon{
  width:56px;height:56px;
  margin:0 auto 16px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:1.6rem;
}
.card-icon.cool{background:rgba(77,201,246,.15);color:var(--ice)}
.card-icon.heat{background:rgba(224,32,32,.15);color:var(--red)}
.card-icon.both{
  background:linear-gradient(135deg,rgba(77,201,246,.15),rgba(224,32,32,.15));
  color:var(--white);
}
.card h3{font-weight:700;color:var(--white);margin-bottom:8px;font-size:1.05rem}
.card p{color:var(--gray);font-size:.9rem;line-height:1.5}

/* ── GALLERY ── */
.gallery{
  padding:60px 24px 80px;
  max-width:1100px;margin:0 auto;
}
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:12px;
}
.gallery-grid img{
  width:100%;height:220px;
  object-fit:cover;border-radius:8px;
  border:1px solid rgba(77,201,246,.1);
  transition:transform .3s;
}
.gallery-grid img:hover{transform:scale(1.03)}

/* ── VALUES BAR ── */
.values{
  background:var(--navy-mid);
  border-top:1px solid rgba(77,201,246,.08);
  border-bottom:1px solid rgba(77,201,246,.08);
  padding:40px 24px;
}
.values-inner{
  max-width:1100px;margin:0 auto;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:24px;text-align:center;
}
.val-item h4{color:var(--white);font-weight:700;margin-bottom:4px}
.val-item p{color:var(--gray);font-size:.85rem}
.val-icon{font-size:1.6rem;margin-bottom:8px}

/* ── CTA BANNER ── */
.cta-banner{
  padding:64px 24px;text-align:center;
  background:linear-gradient(135deg,var(--navy-light),var(--navy-mid));
}
.cta-banner h2{
  font-family:'Barlow Condensed','Barlow',sans-serif;
  font-weight:700;font-size:clamp(1.5rem,3vw,2.2rem);
  color:var(--white);margin-bottom:8px;
}
.cta-banner p{color:var(--gray);max-width:480px;margin:0 auto 24px;font-size:1rem}

/* ── FOOTER ── */
footer{
  padding:32px 24px;text-align:center;
  background:var(--navy);
  border-top:1px solid rgba(77,201,246,.06);
}
footer p{color:var(--gray);font-size:.8rem}
footer a{color:var(--ice);text-decoration:none}

/* ── RESPONSIVE ── */
@media(max-width:640px){
  .nav-links{display:none}
  .hero{padding:110px 16px 60px}
  .hero-logo{max-width:220px}
  .gallery-grid{grid-template-columns:1fr 1fr}
}