/* ================= ROOT ================= */
:root{
  --primary-red:#d32f2f;
  --accent-red:#ff5252;
  --dark:#1a1a1a;
  --light:#f4f6f9;
  --white:#ffffff;
  --shadow:0 12px 35px rgba(0,0,0,0.08);
  --transition:all .35s cubic-bezier(.25,.8,.25,1);
}

/* ================= RESET ================= */
*{
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family:'Inter',sans-serif;
}
html{scroll-behavior:smooth;}
body{
  background:var(--light);
  color:var(--dark);
  overflow-x:hidden;
}

/* ================= NAVIGATION ================= */
nav{
  position:fixed;
  top:0;
  width:100%;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(14px);
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:1rem 8%;
  z-index:2000;
  transition:var(--transition);
  border-bottom:1px solid rgba(0,0,0,.05);
}
nav.scrolled{
  padding:.6rem 8%;
  box-shadow:var(--shadow);
}

.logo img{
  width:120px;
  height:auto;
}

/* NAV LINKS */
/* ===== CLEAR NAV LINK COLOR FIX ===== */

/* Default link color */
.nav-links a{
  color:#1a1a1a !important;   /* clear dark */
  opacity:1;
}

/* Hover state */
.nav-links a:hover{
  color:#d32f2f !important;   /* primary red */
}

/* Active menu item */
.nav-links a.active-link{
  color:#d32f2f !important;
  font-weight:800;
}

/* Scrolled navbar link color */
nav.scrolled .nav-links a{
  color:#1a1a1a !important;
}

/* Mobile menu background fix */
@media(max-width:992px){
  .nav-links{
    background:#ffffff;
  }
  .nav-links a{
    color:#1a1a1a !important;
  }
}

/* MOBILE MENU ICON */
.menu-toggle{
  display:none;
  font-size:1.7rem;
  cursor:pointer;
  color:var(--dark);
}

/* ================= HERO ================= */
.hero{
  width:100%;
  max-width:1330px;
  min-height:650px;
  background:
  linear-gradient(135deg,rgba(255,255,255,.9),rgba(255,255,255,.7)),
  url('https://www.freezerambulance.com/assets/images/Clean-CarImages/Double%20Cabin%20.png');
  background-repeat:no-repeat;
  background-position:center;
  background-size:1200px auto;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  text-align:center;
  margin:80px auto 60px;
  padding:0 20px;
}
.hero h3{
  font-size:clamp(2rem,5vw,3rem);
  font-weight:800;
  color:var(--primary-red);
}
.hero p{
  max-width:780px;
  margin-top:1rem;
  font-size:1.05rem;
  line-height:1.6;
  opacity:.9;
  text-align:justify;
}

/* ================= SECTION TITLE ================= */
.section-title{
  text-align:center;
  margin-bottom:4rem;
}
.section-title h2{
  font-size:2.6rem;
  font-weight:800;
}
.section-title .underline{
  width:70px;
  height:4px;
  background:linear-gradient(90deg,var(--primary-red),var(--accent-red));
  margin:14px auto 0;
  border-radius:10px;
}

/* ================= SPECS GRID ================= */
.specs-grid{
  display:grid;
  gap:2.5rem;
  margin-bottom:4rem;
  grid-template-columns:repeat(3,1fr);
}
.spec-card{
  background:var(--white);
  padding:3rem 2.2rem;
  border-radius:18px;
  box-shadow:var(--shadow);
  transition:var(--transition);
  position:relative;
  overflow:hidden;
  border:2px solid transparent;
}
.spec-card::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,transparent,var(--primary-red));
  opacity:0;
  transition:.35s;
}
.spec-card:hover{
  transform:scale(1.05);
  border-color:var(--primary-red);
  box-shadow:0 20px 50px rgba(211,47,47,.25);
}
.spec-card:hover::before{opacity:.05;}

.spec-card i{
  font-size:2.6rem;
  color:var(--primary-red);
  margin-bottom:1.3rem;
}
.spec-card h3{
  font-size:1.35rem;
  font-weight:800;
  margin-bottom:.8rem;
}
.spec-card p{
  font-size:.98rem;
  line-height:1.6;
  opacity:.85;
  text-align:justify;
}

/* ================= FREEZER SECTION ================= */
#freezer{
  background:linear-gradient(135deg,#ffffff,#f0f2f6);
}

/* ================= CONTACT ================= */
.contact-container{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:4rem;
  background:linear-gradient(135deg,#ffffff,#f6f7fb);
  padding:4.5rem;
  border-radius:26px;
  box-shadow:var(--shadow);
}
.contact-container h2{
  font-size:2.4rem;
  font-weight:900;
}
.contact-form input,
.contact-form textarea{
  width:100%;
  padding:15px;
  margin-bottom:1rem;
  border-radius:8px;
  border:1px solid #ddd;
  font-size:.95rem;
}
.contact-form input:focus,
.contact-form textarea:focus{
  outline:none;
  border-color:var(--primary-red);
}
.btn{
  background:linear-gradient(135deg,var(--primary-red),var(--accent-red));
  color:#fff;
  padding:16px 38px;
  border:none;
  border-radius:40px;
  font-weight:800;
  cursor:pointer;
  transition:var(--transition);
}
.btn:hover{
  transform:translateY(-3px);
  box-shadow:0 14px 30px rgba(211,47,47,.35);
}

/* ================= RESPONSIVE ================= */

/* Tablet */
@media(max-width:992px){
  nav{padding:.9rem 6%;}
  .menu-toggle{display:block;}

  .nav-links{
    position:fixed;
    top:70px;
    left:-100%;
    width:100%;
    height:calc(100vh - 70px);
    background:#ffffff;
    flex-direction:column;
    padding:2.5rem;
    transition:.4s;
  }
  .nav-links.active{left:0;}
  .nav-links li{margin:1.4rem 0;}

  .hero{
    min-height:auto;
    background-size:cover;
  }
  .specs-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .contact-container{
    grid-template-columns:1fr;
    padding:3rem;
  }
}

/* Mobile */
@media(max-width:600px){
  .hero h3{font-size:1.9rem;}
  .hero p{font-size:.95rem;}
  .specs-grid{
    grid-template-columns:1fr;
  }
}