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

body{
  font-family:Inter,Arial,sans-serif;
  background:#f4f7fb;
  color:#1e293b;
  min-height:100vh;
}

.bg{
  position:fixed;
  inset:0;
  background:
    radial-gradient(circle at top left,#dbeafe,transparent 35%),
    radial-gradient(circle at bottom right,#cffafe,transparent 35%);
  z-index:-1;
}

.container{
  max-width:1100px;
  margin:auto;
  padding:50px 20px;
}

header{
  text-align:center;
  margin-bottom:40px;
}

header h1{
  font-size:52px;
  margin-bottom:14px;
  color:#0f172a;
}

header p{
  color:#475569;
  line-height:1.7;
  max-width:850px;
  margin:auto;
}

.card{
  background:white;
  border-radius:28px;
  padding:35px;
  box-shadow:
    0 10px 40px rgba(15,23,42,.08);
  border:1px solid #e2e8f0;
}

.grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:22px;
  margin-bottom:22px;
}

.field{
  display:flex;
  flex-direction:column;
}

label{
  margin-bottom:10px;
  color:#334155;
  font-weight:600;
}

input,
select{
  background:#fff;
  border:1px solid #cbd5e1;
  border-radius:16px;
  padding:16px;
  font-size:16px;
  color:#0f172a;
  transition:.25s;
}

input:focus,
select:focus{
  outline:none;
  border-color:#2563eb;
  box-shadow:
    0 0 0 4px rgba(37,99,235,.1);
}

button{
  width:100%;
  border:none;
  border-radius:18px;
  padding:18px;
  background:linear-gradient(90deg,#2563eb,#0ea5e9);
  color:white;
  font-size:18px;
  font-weight:600;
  cursor:pointer;
  transition:.25s;
  margin-top:8px;
}

button:hover{
  transform:translateY(-2px);
  box-shadow:
    0 12px 30px rgba(37,99,235,.25);
}

.result{
  margin-top:35px;
}

.result h2{
  margin-bottom:20px;
  color:#0f172a;
}

.result-box{
  background:#f8fafc;
  border:1px solid #e2e8f0;
  border-radius:20px;
  padding:24px;
  display:flex;
  flex-direction:column;
  gap:18px;
}

.result-box div{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
}

.result-box span{
  color:#64748b;
}

.result-box strong{
  color:#2563eb;
  font-size:18px;
}

@media(max-width:768px){

  .grid{
    grid-template-columns:1fr;
  }

  header h1{
    font-size:36px;
  }

  .card{
    padding:24px;
  }

}



/* =========================
   SEO ARTICLE
========================= */

.seo-card{
  margin-top:40px;
  background:#ffffff;
  border-radius:28px;
  padding:60px;
  box-shadow:
    0 4px 30px rgba(15,23,42,.06);
  border:1px solid #e2e8f0;
}

.seo-content{
  max-width:900px;
  margin:0 auto;
}

.seo-content h2{
  font-size:34px;
  line-height:1.3;
  margin-top:50px;
  margin-bottom:24px;
  color:#0f172a;
  font-weight:700;
}

.seo-content h2:first-child{
  margin-top:0;
}

.seo-content p{
  font-size:18px;
  line-height:1.95;
  color:#334155;
  margin-bottom:24px;
}

.seo-content ul{
  padding-left:28px;
  margin:30px 0;
}

.seo-content li{
  margin-bottom:14px;
  color:#334155;
  font-size:18px;
  line-height:1.8;
}

@media(max-width:768px){

  .seo-card{
    padding:28px;
  }

  .seo-content h2{
    font-size:28px;
  }

  .seo-content p,
  .seo-content li{
    font-size:16px;
    line-height:1.85;
  }

}

.seo-content ul{
  padding-left:25px !important;
  margin:25px 0 !important;
}

.seo-content li{
  list-style:disc !important;
}