/* Hero Section */
.hero{
    background:linear-gradient(135deg,#528ff7,#8bbff6,#50c6f1);
    color:#0e0b0b;
    padding:80px 0;
    overflow:hidden;
}

.hero h1{
    font-size:45px;
    font-weight:500;
    margin:20px 0;
    color:#fff;
}

.hero p{
    font-size:18px;
    color:rgba(255,255,255,.95);
    color:#fff;
}

.badge-custom{
    display:inline-block;
    background:#80caff;
    color:#fff;
    padding:8px 20px;
    border-radius:30px;
    font-weight:500;
    font-size:18px;
}

/* Images */
.product-circle{
    width:420px;
    height:420px;
    margin:auto;
    border-radius:50%;
    overflow:hidden;
    border:2px solid rgba(255,255,255,.25);
    box-shadow:0 15px 40px rgba(0,0,0,.25);
}

.product-circle img{
    width:100%;
    height:100%;
    object-fit:cover;
}

.aquarium-card{
    max-width:850px;
    background:linear-gradient(135deg,#528ff7,#45defc,#50c6f1);
    padding:30px;
    border-radius:15px;
    box-shadow:0 10px 25px rgba(0,0,0,.15);
}

.aquarium-text{
    color:#0b1f54;
    font-size:18px;
    font-weight:600;
    line-height:1.8;
    text-align:justify;
    margin:0;
}

.highlight-text{
    color:#0047ff;
    font-weight:700;
}

.feature-card1{
    padding:30px;
    border-radius:20px;
    text-align:center;
    transition:.35s;
    box-shadow:0 10px 25px rgba(0,0,0,.08);
    height:100%;
    background:linear-gradient(135deg,#80acf8,#85d2ee,#64cbf1);
}

/* Sections */
.features,
.specification{
    padding:80px 0;
}

.features h2,
.specification h2{
    font-weight:700;
    color:#0b3d91;
    margin-bottom:15px;
}

/* Cards */
.feature-card{
    background:#fff;
    padding:30px;
    border-radius:20px;
    text-align:center;
    transition:.35s;
    box-shadow:0 10px 25px rgba(0,0,0,.08);
    height:100%;
}

.feature-card:hover{
    transform:translateY(-10px);
    box-shadow:0 15px 35px rgba(0,0,0,.15);
}

.icon{
    width:70px;
    height:70px;
    border-radius:50%;
    background:#e8f5ff;
    display:flex;
    align-items:center;
    justify-content:center;
    margin:auto;
    font-size:34px;
    margin-bottom:20px;
}

.feature-card h5{
    font-weight:700;
    margin-bottom:15px;
    color:#0b3d91;
}

.feature-card p{
    color:#666;
}

/* Specification Boxes */
.spec-box{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:18px 22px;
    margin-bottom:15px;
    border-left:5px solid #0653fa;
    background:#fff;
    border-radius:12px;
    box-shadow:0 8px 20px rgba(0,0,0,.08);
}

.spec-box div:first-child{
    font-weight:500;
    color:#060a11;
}

.spec-box div:last-child{
    color:#0438f4;
    text-align:right;
}

/* CTA */
.cta{
    background:linear-gradient(135deg,#2f76f0,#83b4f4,#53c7f1);
    color:#fff;
    padding:70px 0;
}

.cta h2{
    font-size:35px;
    font-weight:300;
    margin-bottom:20px;
}

.cta p{
    max-width:750px;
    margin:auto;
    margin-bottom:35px;
    font-size:17px;
}

/* Responsive */
@media(max-width:991px){
    
    .hero h1{
        font-size:38px;
    }

    .product-circle{
        width:320px;
        height:320px;
        margin-top:40px;
    }

    .spec-box{
        flex-direction:column;
        text-align:center;
        gap:8px;    
    }

    .spec-box div:last-child{
        text-align:center;
    }

}

@media (max-width:767px){
    .hero{
        padding:60px 0;
    }

    .hero h1{
        font-size:34px;
        line-height:1.3;
    }

    .hero p{
        font-size:16px;
        line-height:1.8;
    }

    .badge-custom{
        font-size:15px;
        padding:8px 18px;
    }

    .product-circle{
        width:280px;
        height:280px;
        margin:35px auto 0;
    }

    .feature-card{
        padding:25px 20px;
    }

    .feature-card h5{
        font-size:20px;
    }

    .feature-card p{
        font-size:15px;
    }

    .icon{
        width:65px;
        height:65px;
        font-size:30px;
    }

    .cta h2{
        font-size:30px;
    }

    .cta p{
        font-size:16px;
    }

}

@media (max-width:576px){
    .hero{
        padding:50px 0;
    }

    .hero h1{
        font-size:28px;
        line-height:1.4;
    }   

    .hero p{
        font-size:15px;
        line-height:1.8;
    }

    .badge-custom{
        font-size:14px;
        padding:7px 16px;
    }

    .product-circle{
        width:220px;
        height:220px;
        margin:30px auto 0;
    }

    .feature-card{
        padding:22px 18px;
    }

    .icon{
        width:60px;
        height:60px;
        font-size:28px;
    }

    .feature-card h5{
        font-size:18px;
    }

    .feature-card p{
        font-size:14px;
    }

    .spec-box{
        flex-direction:column;
        text-align:center;
        gap:8px;
        padding:16px;
    }

    .spec-box div:last-child{
        text-align:center;
    }

    .features,
    .specification,
    .cta{
        padding:50px 0;
    }

    .cta h2{
        font-size:26px;
    }

    .cta p{
        font-size:15px;
    }

}

@media (max-width:400px){
    .hero h1{
        font-size:24px;
    }

    .hero p{
        font-size:14px;
    }

    .product-circle{
        width:190px;
        height:190px;
    }

    .badge-custom{
        font-size:13px;
    }

    .btn1,
    .btn2{
        max-width:190px;
        font-size:14px;
    }

    .icon{
        width:55px;
        height:55px;
        font-size:24px;
    }

}

@media (max-width:576px){

    .button-group{
        display:flex;
        gap:10px;
    }

    .btn1,
    .btn2{
        flex:1;
        width:auto;
    }
}

@media (min-width:992px) and (max-width:1200px){

    .btn1,
    .btn2{
        padding:12px 28px;
        font-size:15px;
        margin-right:10px;
        white-space:nowrap;
    }

    .btn1{
        margin-bottom:10px;
    }

}