:root{
  --bg:#f7fbff;
  --text:#15202b;
  --muted:#5a6876;
  --brand:#e22121;
  --brand2:#0d5bff;
  --dark:#08111f;
  --card:#ffffff;
  --line:#e6edf5;
}

*{
  box-sizing:border-box;
}

body{
  margin:0;
  font-family:Arial, Helvetica, sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
}

a{
  color:inherit;
}

.topbar{
  position:sticky;
  top:0;
  z-index:100;
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:14px 7%;
  background:white;
  border-bottom:1px solid var(--line);
}

.brand img{
  height:62px;
  width:auto;
}

.nav{
  display:flex;
  gap:28px;
  align-items:center;
}

.nav a{
  text-decoration:none;
  color:#111;
  font-weight:800;
}

.nav a:hover{
  color:var(--brand2);
}

.hero{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:center;
  padding:90px 7%;
}

.tag{
  display:inline-block;
  color:var(--brand);
  font-weight:900;
  text-transform:uppercase;
  letter-spacing:.08em;
  font-size:.82rem;
  margin-bottom:12px;
}

h1{
  font-size:clamp(2.4rem,5vw,4.6rem);
  line-height:1.05;
  margin:0 0 22px;
  color:var(--dark);
}

h2{
  font-size:clamp(2rem,3vw,3rem);
  line-height:1.15;
  margin:8px 0 18px;
  color:var(--dark);
}

.hero-text p{
  font-size:1.18rem;
  color:var(--muted);
}

.hero-image img{
  width:100%;
  max-width:560px;
  display:block;
  margin:auto;
}

.hero-buttons{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  margin-top:30px;
}

.btn-primary,
.btn-secondary{
  display:inline-flex;
  justify-content:center;
  align-items:center;
  padding:14px 24px;
  border-radius:999px;
  text-decoration:none;
  font-weight:900;
  border:2px solid transparent;
  cursor:pointer;
}

.btn-primary{
  background:var(--brand);
  color:white;
}

.btn-secondary{
  background:white;
  color:var(--dark);
  border-color:var(--line);
}

.hero-features{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}

.hero-features span{
  background:white;
  padding:9px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  font-weight:700;
}

.section{
  padding:80px 7%;
  max-width:1220px;
  margin:auto;
}

.light{
  background:linear-gradient(135deg,#fff,#edf5ff);
  border-radius:36px;
}

.section-head{
  text-align:center;
  max-width:760px;
  margin:0 auto 36px;
}

.cards{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}

.cards article{
  background:white;
  border:1px solid var(--line);
  border-radius:24px;
  padding:28px;
  box-shadow:0 14px 40px rgba(8,17,31,.08);
}

.screens{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:30px;
  align-items:center;
}

.screens img{
  width:100%;
  max-width:520px;
  height:auto;
  display:block;
  margin:auto;
  border-radius:20px;
  box-shadow:0 14px 40px rgba(8,17,31,.12);
  background:white;
}

.split,
.contact{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
  align-items:center;
}

.checklist{
  display:grid;
  gap:14px;
}

.checklist p{
  background:white;
  border:1px solid var(--line);
  border-radius:16px;
  padding:15px 18px;
  margin:0;
  font-weight:800;
}

.form{
  background:white;
  border:1px solid var(--line);
  border-radius:24px;
  padding:28px;
  display:grid;
  gap:14px;
  box-shadow:0 14px 40px rgba(8,17,31,.08);
}

.form input,
.form textarea{
  width:100%;
  border:1px solid #cfd9e5;
  border-radius:14px;
  padding:14px;
  font:inherit;
}

.whatsapp{
  position:fixed;
  right:20px;
  bottom:20px;
  z-index:200;
  background:#25d366;
  color:white;
  text-decoration:none;
  border-radius:999px;
  padding:14px 18px;
  font-weight:900;
  box-shadow:0 12px 36px rgba(0,0,0,.2);
}

footer{
  text-align:center;
  padding:28px 7%;
  background:var(--dark);
  color:#d7e4f2;
}

@media(max-width:850px){
  .topbar{
    flex-direction:column;
    gap:14px;
  }

  .nav{
    flex-wrap:wrap;
    justify-content:center;
    gap:16px;
  }

  .hero,
  .split,
  .contact,
  .cards,
  .screens{
    grid-template-columns:1fr;
  }

  .hero{
    padding:60px 6%;
  }

  .section{
    padding:58px 6%;
  }

  .hero-image img,
  .screens img{
    max-width:95%;
  }
}


/* Language buttons */
.lang-switcher{
  display:flex;
  gap:10px;
  align-items:center;
  margin-left:18px;
}
.lang-btn{
  padding:10px 16px;
  border:1px solid var(--line);
  border-radius:999px;
  background:white;
  color:var(--dark);
  font-weight:900;
  cursor:pointer;
  box-shadow:none;
  outline:none;
}
.lang-btn.active{
  background:var(--dark);
  color:white;
  border-color:var(--dark);
}
.lang-btn:hover{
  background:#f4f7fb;
}
.lang-btn.active:hover{
  background:var(--dark);
}
.lang-btn:focus,
.lang-btn:active,
.nav a:focus,
.nav a:active{
  outline:none;
  box-shadow:none;
}
@media(max-width:850px){
  .lang-switcher{
    margin-left:0;
    flex-wrap:wrap;
    justify-content:center;
  }
}