:root{
    --blue:#0077c8;
    --cyan:#00b8d9;
    --dark:#101820;
    --text:#263238;
    --muted:#607d8b;
    --light:#f4fbff;
    --white:#ffffff;
}

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

html{
    scroll-behavior:smooth;
}

body{
    font-family:Arial, Helvetica, sans-serif;
    color:var(--text);
    background:var(--white);
    line-height:1.7;
}

.container{
    width:min(1100px,90%);
    margin:auto;
}

/* HEADER */

.site-header{
    position:sticky;
    top:0;
    z-index:100;
    background:rgba(255,255,255,0.96);
    border-bottom:1px solid #e5eef5;
}

.header-inner{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:14px 0;
}

.logo img{
    height:54px;
    width:auto;
    display:block;
}

.site-nav a{
    text-decoration:none;
    color:var(--dark);
    margin-left:22px;
    font-weight:600;
    font-size:15px;
    transition:0.25s;
}

.site-nav a:hover{
    color:var(--blue);
}

/* HAMBURGER */

.menu-toggle{
    display:none;
    width:42px;
    height:42px;
    border:none;
    background:transparent;
    cursor:pointer;
    padding:8px;
}

.menu-toggle span{
    display:block;
    height:3px;
    width:100%;
    background:var(--dark);
    margin:6px 0;
    border-radius:3px;
    transition:0.25s;
}

/* HERO */

.hero{
    position:relative;
    padding:180px 0;
    text-align:center;
    background:
        linear-gradient(
            rgba(16,24,32,0.65),
            rgba(16,24,32,0.65)
        ),
        url('images/Home-slider1.jpg');
    background-size:cover;
    background-position:center;
    background-repeat:no-repeat;
}

.hero h1{
    max-width:850px;
    margin:0 auto 22px;
    font-size:3.2rem;
    line-height:1.15;
    color:#ffffff;
}

.hero p{
    max-width:720px;
    margin:0 auto 34px;
    font-size:1.1rem;
    color:#f1f1f1;
}

.hero-buttons{
    display:flex;
    justify-content:center;
    gap:15px;
    flex-wrap:wrap;
}

.btn{
    display:inline-block;
    padding:14px 32px;
    background:linear-gradient(135deg,var(--blue),var(--cyan));
    color:#fff;
    text-decoration:none;
    border-radius:8px;
    font-weight:700;
    box-shadow:0 8px 24px rgba(0,119,200,0.25);
    transition:0.25s;
}

.btn:hover{
    transform:translateY(-2px);
    box-shadow:0 12px 30px rgba(0,119,200,0.35);
}

.btn-secondary{
    background:#ffffff;
    color:var(--blue);
    border:2px solid var(--blue);
}

.btn-secondary:hover{
    background:#f5faff;
}

/* SECTIONS */

.section{
    padding:90px 0;
}

.section h2{
    margin-bottom:24px;
    font-size:2.1rem;
    color:var(--blue);
}

.section p{
    max-width:820px;
    margin-bottom:16px;
}

.alt{
    background:var(--light);
}

/* CARDS */

.cards{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
    gap:24px;
    margin-top:32px;
}

.card{
    background:#fff;
    padding:28px;
    border-radius:14px;
    border-top:4px solid var(--cyan);
    box-shadow:0 8px 24px rgba(0,0,0,0.06);
    transition:0.25s;
}

.card:hover{
    transform:translateY(-4px);
}

.card h3{
    margin-bottom:12px;
    color:var(--dark);
}

.card p{
    color:var(--muted);
}

/* INFO WIDGETS */

.info-section{
    padding:90px 0;
    background:#202832;
}

.info-widgets{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:24px;
}

.info-widget{
    background:#2b3542;
    padding:32px;
    border-radius:16px;
    border:1px solid rgba(255,255,255,0.08);
    border-top:4px solid var(--cyan);
    box-shadow:0 12px 30px rgba(0,0,0,0.18);
}

.info-widget h2{
    margin-bottom:18px;
    font-size:1.6rem;
    color:#ffffff;
}

.info-widget p{
    margin-bottom:14px;
    color:#cfd8dc;
}

.info-widget .text-link{
    color:var(--cyan);
    font-weight:700;
    text-decoration:none;
}

.info-widget .text-link:hover{
    color:#ffffff;
}

/* LINKS */

a{
    color:var(--blue);
}

a:hover{
    color:var(--cyan);
}

/* FOOTER */

.site-footer{
    background:linear-gradient(135deg,var(--blue),var(--cyan));
    color:#fff;
    text-align:center;
    padding:30px;
}

/* TABLET */

@media(max-width:900px){
    .info-widgets{
        grid-template-columns:1fr;
    }
}

/* MOBILE */

@media(max-width:768px){

    .site-header{
        position:sticky;
        top:0;
    }

    .header-inner{
        flex-direction:row;
        justify-content:space-between;
        align-items:center;
        padding:12px 0;
    }

    .logo img{
        height:42px;
    }

    .menu-toggle{
        display:block;
    }

    .site-nav{
        display:none;
        position:absolute;
        top:66px;
        left:0;
        width:100%;
        background:#ffffff;
        border-top:1px solid #e5eef5;
        border-bottom:1px solid #e5eef5;
        padding:12px 0;
        text-align:center;
        box-shadow:0 12px 24px rgba(0,0,0,0.08);
    }

    .site-nav.active{
        display:block;
    }

    .site-nav a{
        display:block;
        margin:0;
        padding:12px 20px;
        font-size:15px;
    }

    .hero{
        padding:110px 0;
        background-position:center;
    }

    .hero h1{
        font-size:2.2rem;
    }

    .hero p{
        font-size:1rem;
    }

    .hero-buttons{
        flex-direction:column;
        align-items:center;
    }

    .btn{
        width:260px;
        text-align:center;
    }

    .section,
    .info-section{
        padding:65px 0;
    }

    .cards{
        grid-template-columns:1fr;
    }
}
.back-to-top{
    position:fixed;
    right:25px;
    bottom:25px;

    width:50px;
    height:50px;

    display:flex;
    align-items:center;
    justify-content:center;

    background:linear-gradient(
        135deg,
        var(--blue),
        var(--cyan)
    );

    color:#fff;
    text-decoration:none;
    font-size:24px;
    font-weight:bold;

    border-radius:50%;
    box-shadow:0 8px 20px rgba(0,0,0,0.25);

    z-index:999;

    opacity:0;
    visibility:hidden;
    transform:translateY(20px);

    transition:all .3s ease;
}

.back-to-top.show{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
}

.back-to-top:hover{
    transform:translateY(-3px);
    color:#fff;
}
.footer-links{
    margin-bottom:10px;
}

.footer-links a{
    color:#ffffff;
    text-decoration:none;
    font-weight:600;
}

.footer-links a:hover{
    text-decoration:underline;
}

.footer-links span{
    margin:0 10px;
    opacity:0.7;
}

.footer-copy{
    font-size:14px;
}