/* ===================================
   SH Solar Calculator
=================================== */

.shsolar-app{
    max-width:1200px;
    margin:60px auto;
    padding:20px;
    font-family:Arial,Helvetica,sans-serif;
}

.shsolar-title{
    text-align:center;
    margin-bottom:40px;
}

.shsolar-title h1{
    font-size:48px;
    font-weight:700;
    color:#111827;
    margin-bottom:15px;
    line-height:1.2;
}

.shsolar-title p{
    font-size:20px;
    color:#6b7280;
    max-width:900px;
    margin:auto;
    line-height:1.7;
}

.shsolar-card{

    background:#fff;

    border:1px solid #e5e7eb;

    border-radius:24px;

    padding:35px;

    box-shadow:0 15px 35px rgba(0,0,0,.08);

}

/* Tabs */

.shsolar-tabs{

    display:flex;

    gap:15px;

    margin-bottom:35px;

}

.shsolar-tabs .tab-btn{

    flex:1;

    height:58px;

    border-radius:16px;

    border:1px solid #d1d5db;

    background:#fff;

    font-size:20px;

    font-weight:700;

    cursor:pointer;

    transition:.3s;

}

.shsolar-tabs .active{

    background:#4CAF50;

    color:#fff;

    border-color:#4CAF50;

}

/* Form */

.form-group{

    margin-bottom:25px;

}

.form-group label{

    display:block;

    margin-bottom:10px;

    font-size:18px;

    font-weight:600;

    color:#374151;

}

.form-group span{

    color:red;

}

.form-group input,
.form-group select{

    width:100%;

    height:62px;

    border:1px solid #d1d5db;

    border-radius:16px;

    padding:0 20px;

    font-size:18px;

    background:#fff;

}

.form-group input:focus,
.form-group select:focus{

    outline:none;

    border-color:#4CAF50;

}

/* Two Column */

.two-col{

    display:grid;

    grid-template-columns:1fr 1fr;

    gap:20px;

}

/* ===================================
   Calculate Button
=================================== */

.calculate-btn{
    width:100%;
    height:62px;
    background:#4CAF50;
    color:#fff;
    border:none;
    border-radius:16px;
    font-size:20px;
    font-weight:700;
    cursor:pointer;
    transition:.3s;
    margin-top:10px;
}

.calculate-btn:hover{
    background:#388E3C;
}

/* ===================================
   Result Card
=================================== */

.shsolar-result{

    margin-top:35px;

    background:#ffffff;

    border:1px solid #e5e7eb;

    border-radius:24px;

    padding:35px;

    box-shadow:0 10px 30px rgba(0,0,0,.06);

}

.shsolar-result h2{

    font-size:32px;

    margin-bottom:30px;

    color:#111827;

    text-align:center;

}

.result-grid{

    display:grid;

    grid-template-columns:repeat(2,1fr);

    gap:20px;

}

.result-item{

    background:#f8fafc;

    border:1px solid #e5e7eb;

    border-radius:18px;

    padding:25px;

    text-align:center;

    transition:.3s;

}

.result-item:hover{

    transform:translateY(-4px);

    box-shadow:0 10px 20px rgba(0,0,0,.08);

}

.result-item span{

    display:block;

    font-size:15px;

    color:#6b7280;

    margin-bottom:10px;

}

.result-item strong{

    font-size:28px;

    color:#16a34a;

    font-weight:700;

}

/* ===================================
   Responsive
=================================== */

@media(max-width:768px){

    .shsolar-title h1{

        font-size:32px;

    }

    .shsolar-title p{

        font-size:16px;

    }

    .two-col{

        grid-template-columns:1fr;

    }

    .result-grid{

        grid-template-columns:1fr;

    }

    .shsolar-card{

        padding:20px;

    }

    .shsolar-result{

        padding:20px;

    }

    .shsolar-tabs{

        flex-direction:column;

    }

}