.calculator-container{
  width:100%;
  max-width:1200px;
  background:#fff;
  border-radius:28px;
  overflow:hidden;
  display:grid;
  grid-template-columns:1fr 430px;
  box-shadow:0 20px 50px rgba(0,0,0,0.08);
}

.calculator-left{
  padding:45px;
}

.calculator-right{
  background:linear-gradient(135deg,#2563eb,#4f46e5);
  padding:40px;
  color:#fff;
  display:flex;
  flex-direction:column;
  justify-content:center;
}

.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:#dbeafe;
  color:#2563eb;
  padding:10px 18px;
  border-radius:999px;
  font-size:13px;
  font-weight:700;
  margin-bottom:20px;
}

.subtitle{
  color:#64748b;
  line-height:1.8;
  margin-bottom:35px;
}

.currency-toggle{
  display:flex;
  gap:12px;
  margin-bottom:35px;
}

.currency-btn{
  border:none;
  padding:13px 24px;
  border-radius:14px;
  background:#e2e8f0;
  color:#334155;
  cursor:pointer;
  font-weight:700;
  transition:0.3s;
}

.currency-btn.active{
  background:#2563eb;
  color:#fff;
}

.form-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
}

.input-group{
  margin-bottom:5px;
}

.input-group.full{
  grid-column:1/3;
}

.input-label{
  font-size:15px;
  font-weight:600;
  margin-bottom:10px;
  color:#334155;
}

.input-wrapper{
  position:relative;
}

.currency-symbol{
  position:absolute;
  left:18px;
  top:50%;
  transform:translateY(-50%);
  color:#64748b;
  font-weight:700;
}

input,
select{
  width:100%;
  height:58px;
  border:2px solid #e2e8f0;
  border-radius:16px;
  padding:0 18px 0 45px;
  font-size:16px;
  transition:0.3s;
  outline:none;
  background:#fff;
}

select{
  padding-left:18px;
}

input:focus,
select:focus{
  border-color:#2563eb;
  box-shadow:0 0 0 4px rgba(37,99,235,0.10);
}

.result-card{
  background:rgba(255,255,255,0.12);
  border:1px solid rgba(255,255,255,0.12);
  border-radius:28px;
  padding:30px;
  backdrop-filter:blur(14px);
}

.result-title{
  font-size:15px;
  opacity:0.9;
  margin-bottom:12px;
}

.roas-value{
  font-size:60px;
  font-weight:800;
  margin-bottom:10px;
}

.performance-badge{
  display:inline-block;
  padding:10px 18px;
  border-radius:999px;
  background:rgba(255,255,255,0.16);
  font-size:14px;
  margin-bottom:28px;
}

.metrics-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}

.metric-card{
  background:rgba(255,255,255,0.12);
  border-radius:18px;
  padding:20px;
}

.metric-label{
  font-size:13px;
  opacity:0.85;
  margin-bottom:10px;
}

.metric-value{
  font-size:28px;
  font-weight:700;
}

.progress-section{
  margin-top:28px;
}

.progress-title{
  font-size:14px;
  margin-bottom:10px;
  opacity:0.9;
}

.progress-bar{
  width:100%;
  height:14px;
  border-radius:999px;
  overflow:hidden;
  background:rgba(255,255,255,0.15);
}

.progress-fill{
  width:0%;
  height:100%;
  border-radius:999px;
  background:#fff;
  transition:1s;
}

.platform-card{
  margin-top:28px;
  background:rgba(255,255,255,0.10);
  border-radius:20px;
  padding:22px;
}

.platform-title{
  font-size:20px;
  font-weight:700;
  margin-bottom:10px;
}

.platform-description{
  font-size:14px;
  line-height:1.7;
  opacity:0.9;
}

.tips{
  margin-top:25px;
  font-size:14px;
  line-height:1.7;
  opacity:0.92;
}

@media(max-width:980px){

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

  .calculator-right{
    order:-1;
  }

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

  .input-group.full{
    grid-column:auto;
  }

  .roas-value{
    font-size:46px;
  }

}