/*air-conditioners-heat-pump_style.css*/

*{margin:0;padding:0;}
body{background:var(--bg);color:var(--dark);line-height:1.7;}
section{width: 100%;padding:50px 10px;}
.container{width: 100%;max-width:var(--max-width);margin:auto;}
h1,h2,h3{color:var(--dark);line-height:1.15;font-weight:800;}
h1{font-size:clamp(42px,6vw,72px);margin-bottom:24px;}
h2{font-size:clamp(30px,4vw,48px);margin-bottom:22px;}
h3{font-size:22px;margin-bottom:14px;}
p{color:var(--muted);margin-bottom:16px;}
ul{list-style:none;padding-left:0;}
li{margin-bottom:10px;}

.btn,button{
  display:inline-flex;
  justify-content:center;
  align-items:center;
  padding:18px 34px;
  border-radius:14px;
  background:linear-gradient(135deg,var(--accent),var(--accent-dark));
  color:#fff;
  font-weight:700;
  border:none;
  cursor:pointer;
  transition:.3s;
}

.btn:hover,button:hover{transform:translateY(-4px);}

/* HERO */
.hero{
  width:100%;
  overflow:clip;
  position:relative;
  min-height:90vh;
  display:flex;
  align-items:center;
  text-align:center;
  color:#fff;
  overflow:hidden;
  isolation:isolate;
}

.hero h1,
.hero h2,
.hero h3{
  color:#fff;
}

.hero p,
.hero li,
.hero span{
  color:#cbd5e1;
}

.hero::after{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  background:linear-gradient(
    rgba(15,23,42,0.75),
    rgba(15,23,42,0.75)
  );
  z-index:1;
}

.background-image-hero{
  position:absolute;
  inset:0;
  top:0;
  left:0;
  width:100%;
  height:100%;
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  z-index:0;

}

.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(15,23,42,.85);
}

.hero-btn{
  padding:20px 40px;      
  font-size:clamp(18px, 2vw, 22px);       
  border-radius:10px;     
  font-weight:700;
  min-width:260px;
  box-shadow:0 15px 40px rgba(0,195,255,0.3);
  transition:all .3s ease;
}

.hero-btn:hover{
  transform:translateY(-4px);
  box-shadow:0 20px 50px rgba(0,195,255,0.5);
}

.hero .container{position:relative;z-index:2;}

.hero-subtitle{color:#cbd5e1;font-size:18px;max-width:900px;margin:0 auto 30px;}

.hero-list{
  display:grid;
  gap:12px;
  max-width:700px;
  margin:0 auto 35px;
  text-align:left;
}

.hero-list li{background:rgba(255,255,255,.08);padding:14px 18px;border-radius:14px;}

.hero-buttons{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:30px;}

.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px;
  margin-top:40px;
}

.hero-stats .stat{
  background:rgba(255,255,255,.06);
  padding:16px;
  border-radius:14px;
  color:#fff;
}

/* SYSTEMS */

.systems-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}

.system-card{
  background:#fff;
  padding:30px;
  border-radius:18px;
  box-shadow:var(--shadow);
  transition:.3s;
}

.system-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);}

/* ADVANTAGES */

.advantages-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}

.advantage-card{
  background:#274075;
  color:#fff;
  padding:30px;
  border-radius:18px;
}

.advantage-card p{
  color:#cbd5e1;
}

.advantage-card h3{
  color:#fff;
}

/* PROCESS */

.process-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}

.process-card{
  background:#fff;
  padding:28px;
  border-radius:18px;
  box-shadow:var(--shadow);
}

.process-card span{
  display:block;
  font-size:28px;
  font-weight:800;
  color:var(--accent);
  margin-bottom:10px;
}

/* CASES */

.cases-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}

.case-card{
  background:#fff;
  padding:28px;
  border-radius:18px;
  box-shadow:var(--shadow);
}

/* BRANDS */

.brands-grid{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:14px;
  text-align:center;
}

.brands-grid span{
  background:#fff;
  padding:18px;
  border-radius:14px;
  font-weight:700;
}

/* SEO */

.seo-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
}

/* FAQ */

.faq-item{
  background:#fff;
  padding:20px;
  border-radius:14px;
  margin-bottom:14px;
  cursor:pointer;
}


/* FORM */

.section-dark{background:#0f172a;color:#fff;}

.section-dark h1,
.section-dark h2,
.section-dark h3{
  color:#fff;
}

.section-dark p,
.section-dark li,
.section-dark span{
  color:#cbd5e1;
}

.section-dark .faq-item{
  background:#274075;
}

.section-dark .faq-item h3{
  color:#fff;
}

.section-dark .faq-item p{
  color:#cbd5e1;
}

.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
}

input,select,textarea{
  width:100%;
  padding:14px;
  border-radius:12px;
  border:none;
}


.container,.systems-grid,.advantages-grid,.process-grid,.cases-grid,.brands-grid,.seo-grid,.contact-grid {min-width: 0;}

@media(max-width:992px){
  .systems-grid,
  .advantages-grid,
  .cases-grid,
  .hero-stats{
    grid-template-columns:repeat(2,1fr);
  }

  .process-grid,
  .brands-grid,
  .seo-grid,
  .contact-grid{
    grid-template-columns:1fr;
  }
}

@media(max-width:968px){
*{min-width:0}
section{padding:60px 16px}
.hero{min-height:85vh;text-align:left}
.hero{align-items:flex-start;padding-top:80px}
.hero .container{text-align:left}
.hero-buttons{justify-content:flex-start}
.hero-list{text-align:left}
.hero-stats{grid-template-columns:1fr 1fr}
.systems-grid,
.advantages-grid,
.process-grid,
.cases-grid,
.brands-grid,
.seo-grid,
.contact-grid{grid-template-columns:1fr}
.system-card,
.advantage-card,
.process-card,
.case-card{padding:22px}
.brands-grid span{padding:14px}
h1{font-size:clamp(32px,8vw,44px)}
h2{font-size:clamp(26px,6vw,34px)}
.hero-subtitle{font-size:16px}
.btn,button{width:100%;padding:16px 20px}
.hero-buttons .btn{width:auto}
.faq-item{padding:16px}
input,select,textarea{padding:12px}
}

@media(max-width:480px){
.hero-stats{grid-template-columns:1fr}
.hero-list li{padding:12px}
section{padding:50px 14px}
h1{font-size:32px}
h2{font-size:24px}
.hero-subtitle{font-size:15px}
}