*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:#10243d;background:#f6f9fc}.site-header{height:90px;display:flex;align-items:center;justify-content:space-between;padding:0 50px;background:white;box-shadow:0 4px 18px #0001;position:sticky;top:0;z-index:10}.brand{display:flex;gap:15px;align-items:center;color:#003E7E;font-size:22px;line-height:1.1}.brand img{width:70px;height:70px;object-fit:contain}nav a{margin:0 12px;color:#10243d;text-decoration:none;font-weight:600}.hero{min-height:520px;background:linear-gradient(90deg,#003E7Ecc,#003E7E55),url('../img/hero-placeholder.jpg') center/cover;display:flex;align-items:center;padding:70px 60px;color:white}.hero h1{font-size:58px;margin:0 0 12px}.btn{display:inline-block;padding:13px 24px;background:#F4B400;color:#002b5c;border-radius:30px;text-decoration:none;font-weight:bold;margin-right:10px}.section{padding:60px}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.card{background:white;padding:25px;border-radius:18px;box-shadow:0 8px 25px #0001}.footer{padding:30px;text-align:center;background:#003E7E;color:white}@media(max-width:800px){.site-header{height:auto;display:block;padding:20px}.grid{grid-template-columns:1fr}.hero h1{font-size:36px}}
/* HERO SLIDER */

.hero-slider{
    position:relative;
    height:650px;
    overflow:hidden;
}

.hero-slide{
    position:absolute;
    inset:0;
    background-size:cover;
    background-position:center;
    opacity:0;
    transition:opacity .8s ease;
}

.hero-slide.active{
    opacity:1;
    z-index:2;
}

.hero-content{
    max-width:1200px;
    margin:auto;
    padding:180px 40px;
    color:#fff;
}

.hero-content h1{
    font-size:56px;
    font-weight:700;
    margin-bottom:15px;
}

.hero-content p{
    font-size:22px;
    max-width:700px;
    margin-bottom:25px;
}

.slide-nav{
    position:absolute;
    top:50%;
    transform:translateY(-50%);
    z-index:10;
    background:none;
    border:none;
    color:#fff;
    font-size:60px;
    cursor:pointer;
}

.prev{
    left:20px;
}

.next{
    right:20px;
}

.slide-dots{
    position:absolute;
    bottom:25px;
    left:50%;
    transform:translateX(-50%);
    z-index:10;
}

.slide-dot{
    width:14px;
    height:14px;
    border-radius:50%;
    display:inline-block;
    margin:0 6px;
    background:#ddd;
    cursor:pointer;
}

.slide-dot.active{
    background:#007bff;
}

@media(max-width:768px){

    .hero-slider{
        height:500px;
    }

    .hero-content{
        padding:120px 20px;
    }

    .hero-content h1{
        font-size:34px;
    }

    .hero-content p{
        font-size:18px;
    }
}
img{
    max-width:100%;
    height:auto;
}

.container{
    width:90%;
    max-width:1200px;
    margin:auto;
}

.grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:20px;
}

@media(max-width:992px){
    .grid{
        grid-template-columns:repeat(2,1fr);
    }

    .site-header{
        padding:20px;
    }

    nav{
        margin-top:15px;
    }
}

@media(max-width:768px){
    .site-header{
        flex-direction:column;
        align-items:flex-start;
        height:auto;
    }

    nav a{
        display:block;
        margin:10px 0;
    }

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

    .hero-slider{
        height:480px;
    }

    .hero-content h1{
        font-size:34px;
        line-height:1.2;
    }

    .hero-content p{
        font-size:17px;
    }

    .section{
        padding:35px 20px;
    }
}