body{
    font-family: Arial, sans-serif;
    margin:0;
    padding:0;
}

/* Header simple */
header{
    background:#000000;
    color:#fff;
    padding:15px 25px;
    font-size:26px;
    font-weight:bold;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    position:relative;
    text-align:center;
}

.logo{
    width:55px;
    position:absolute;
    left:20px;
    top:50%;
    transform:translateY(-50%);
}

.head-title{
    letter-spacing:1px;
}

.sub-title{
    font-size:14px;
    margin-top:3px;
    color:#ffdcdc;
}

/* Banner behind content */
.banner-area{
    background: url('banner.jpg') no-repeat center center;
    background-size: cover;
    padding:40px 0 60px 0;
}

/* Form box */
.form-box{
    width:350px;
    margin:0 auto 40px auto;
    background:rgba(255,255,255,0.85);
    padding:25px;
    border-radius:10px;
    box-shadow:0 0 20px rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
}

input{
    width:100%;
    padding:12px;
    margin-top:12px;
    border-radius:5px;
    border:1px solid #aaa;
}

button{
    width:100%;
    background:#468d03;
    color:white;
    padding:13px;
    margin-top:15px;
    border:none;
    font-size:17px;
    cursor:pointer;
    border-radius:5px;
}

.offer-title{
    text-align:center;
    font-size:25px;
    margin-top:30px;
    color:white;
    text-shadow:2px 2px 4px black;
}

/* Cards */
.cards-section{
    display:grid;
    grid-template-columns: repeat(4, 1fr);
    width:85%;
    margin:auto;
    gap:15px;
    margin-bottom:40px;
}

.card{
    background:rgba(255,255,255,0.85);
    border-radius:10px;
    padding:20px;
    text-align:center;
    font-size:17px;
    font-weight:bold;
    box-shadow:0px 0px 8px rgba(0,0,0,0.4);
    transition:0.3s;
    backdrop-filter: blur(4px);
}

.card:hover{
    transform:scale(1.05);
}

/* ---- FULL RESPONSIVE FIX ---- */

@media(max-width:850px){
    
    header{
        font-size:20px;
        padding:15px;
    }

    .logo{
        width:45px;
        left:10px;
    }

    .head-title{
        font-size:20px;
    }

    .sub-title{
        font-size:12px;
    }

    .cards-section{
        grid-template-columns: repeat(2, 1fr);
        width:95%;
    }

    .form-box{
        width:90%;
    }
}

@media(max-width:600px){

    header{
        flex-direction:column;
        align-items:center;
        justify-content:center;
        padding:20px 10px;
        font-size:22px;
        line-height:26px;
    }

    .logo{
        position:static;
        transform:none;
        margin-bottom:10px;
    }

    .head-title{
        display:block;
        margin-bottom:5px;
    }

    .sub-title{
        text-align:center;
        width:90%;
        margin:auto;
    }

    .banner-area{
        background-size:cover;
        background-position:center;
        padding:30px 0 45px;
    }

    .form-box{
        width:92%;
        padding:20px 15px;
    }

    input{
        font-size:15px;
        padding:12px;
    }

    button{
        padding:13px;
        font-size:16px;
    }

    .cards-section{
        grid-template-columns: repeat(1, 1fr);
        width:92%;
        gap:12px;
    }

    .card{
        font-size:16px;
        padding:18px;
    }

}

@media(max-width:350px){
    header{
        font-size:18px;
    }
    
    .form-box{
        width:95%;
    }
}