/* ==========================================================
   SDPORTAL - ABOUT
   ========================================================== */

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

html{
    scroll-behavior:smooth;
}

body{
    font-family:'Poppins',sans-serif;
    background:rgb(18,30,50);
    color:#ffffff;
    line-height:1.8;
    text-align: center;
}

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

.boxCartes{
    display:flex;
    justify-content:center;
    align-items:flex-start;
    gap:35px;
}

.boxCartes > div{
    flex:1;
    display:flex;
    flex-direction:column;
    gap:35px;
}

.serviceCard,
.differenceItem{
    padding:30px;
    background:var(--glass);
    border:1px solid var(--border);
    border-radius:15px;
}

/* ================= VARIABLES ================= */

:root{
    --bg-dark:rgb(18,30,50);
    --bg-light:rgb(15,25,40);
    --primary:#4fc3f7;
    --glass:rgba(255,255,255,.03);
    --border:rgba(255,255,255,.08);
}

/* ================= NAV ================= */
nav{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    padding:20px 60px;
    display:flex;
    justify-content:space-between;
    align-items:center;
    background:rgba(10,20,40,.8);
    backdrop-filter:blur(10px);
    z-index:1000;
    border-bottom:1px solid rgba(255,255,255,.05);
}

.logo a{
    text-decoration:none;
    font-size:20px;
    font-weight:700;
    color:#fff;
}

.logo span{
    color:var(--primary);
}

.nav-links{
    display:flex;
    gap:40px;
    list-style:none;

}

.nav-links a{
    position:relative;
    text-decoration:none;
    color:#fff;
    font-size:14px;
    letter-spacing:1px;
    opacity:.8;
    transition:.3s;
}

.nav-links a:hover{
    opacity:1;
}

.nav-links a::after{
    content:"";
    position:absolute;
    left:0;
    bottom:-6px;
    width:0;
    height:2px;
    background:var(--primary);
    border-radius:20px;
    transition:width .3s ease;
}

.nav-links a:hover::after{
    width:100%;
}

.burger{
    display:none;
    font-size:28px;
    cursor:pointer;
}

section{
    scroll-margin-top:90px;
}
/* ==========================================================
   HERO
   ========================================================== */
#hero{
    border-bottom:2px solid rgba(79,195,247,.25);
    padding: 0;
}

#hero img{
    display:block;
    width:100%;
    height:auto;
}

h1{
    margin-bottom: 2%;
}

#presentation h1 span{
    color:var(--primary);
}

#presentation h1 small{
    display:block;
    color:rgba(255,255,255,.85);
    margin-top: 2%;
}


/* ================= SECTIONS ================= */

section{
   padding: 3%;
}

section:nth-child(even){
    background:var(--bg-light);
}

section:nth-child(odd){
    background:var(--bg-dark);
}

.titreSection{
    display:flex;
    align-items:center;
    justify-content:center;
    margin-bottom:45px;
}

.effilee{
    width:120px;
    height:1px;
    background:
    linear-gradient(to right,
    transparent,
    var(--primary),
    transparent);
}

h2{
    font-size:2rem;
    letter-spacing:1px;
}

/*section>p{
    max-width:900px;
    margin:auto;
    border: 2px solid red;
}*/

/* ================= SERVICES ================= */

.serviceCard{
    background:var(--glass);
    border:1px solid var(--border);
    border-radius:15px;
    transition:.3s;
}

.serviceCard h3{
    margin-bottom:20px;
    color:var(--primary);
}

/* ================= DIFFERENCE ================= */

.differenceItem{
    background:var(--glass);
    border:1px solid var(--border);
    border-radius:15px;
    transition:.3s;
}

.differenceItem h3{
    margin-bottom:20px;
    color:var(--primary);
}

/* ================= CTA ================= */

.signature{
    margin:45px auto;
    font-size:1.35rem;
    font-style:italic;
}

.signature strong{
    display:block;
    margin-top:8px;
    color:var(--primary);
    font-size:1.6rem;
}

#cta a{
    display:inline-block;
    margin-top:10px;
    padding:1%;
    border-radius:40px;
    text-decoration:none;
    color:white;
    background:rgba(79,195,247,.1);
    border:1px solid rgba(79,195,247,.3);
    transition:.3s;
}

#cta a:hover{
    transform:translateY(-4px);
    background:rgba(79,195,247,.2);
    color:var(--primary);
}

/* ================= FOOTER ================= */

footer{
    background:rgb(15,25,40);
    border-top:1px solid rgba(255,255,255,.05);
    padding: 2%;
}

/* ================= RESPONSIVE ================= */

@media(max-width:768px){

    nav{
        padding:20px;
    }

    h2{
        font-size:1.6rem;
    }

    .effilee{
        width:70px;
    }

    .nav-links{
        position:absolute;
        top:80px;
        right:20px;
        display:none;
        flex-direction:column;
        gap:15px;
        padding:20px;
        background:rgba(10,20,40,.95);
        border-radius:12px;
    }

    .nav-links.active{
        display:flex;
    }

    .burger{
        display:block;
    }

    .boxCartes{
        flex-direction:column;
        gap:25px;
    }

    .boxCartes > div{
        gap:25px;
    }

}

@media(max-width:480px){

    nav{
        padding:10px 30px;
    }

    #hero{
        padding-top:60px;
    }

    h1{
        font-size:1.6rem;
        margin-bottom:4%;
    }

    #presentation h1 small{
        font-size:1rem;
    }

    h2{
        font-size:1.3rem;
    }

    h3{
        font-size:1.1rem;
    }

    body{
        font-size:.95rem;
        line-height:1.6;
    }

    .serviceCard,
    .differenceItem{
        padding:20px;
    }

    .titreSection{
        margin-bottom:25px;
    }

    .effilee{
        width:50px;
    }

    #cta a{
        padding:3%;
    }

}