:root{
--primary:#2b6cb0;
--light:#f5f7fb;
--text:#333;
}

*{
box-sizing:border-box;
margin:0;
padding:0;
font-family:Arial, Helvetica, sans-serif;
}

body{
background:var(--light);
color:var(--text);
line-height:1.6;
}

/* HEADER */

header{
background:white;
padding:20px 40px;
box-shadow:0 2px 6px rgba(0,0,0,0.05);
display:flex;
justify-content:space-between;
align-items:center;
}

.logo{
display:flex;
align-items:center;
gap:10px;
}

.logo img{
height: 170px;
}

header h1{
font-size:22px;
color:var(--primary);
}

nav a{
margin-left:20px;
text-decoration:none;
color:var(--primary);
font-weight:bold;
}

/* HERO */

.hero{
padding:80px 20px;
text-align:center;
background:linear-gradient(135deg,#2b6cb0,#4c8bf5);
color:white;
}

.hero h2{
font-size:40px;
margin-bottom:20px;
}

.hero p{
max-width:700px;
margin:auto;
font-size:18px;
}

/* BOUTON */

.button{
display:inline-block;
margin-top:25px;
padding:14px 24px;
background:white;
color:#2b6cb0;
border-radius:6px;
text-decoration:none;
font-weight:bold;
}

/* CONTENEUR */

.container{
max-width:1100px;
margin:auto;
padding:60px 20px;
}

/* TITRES */

.section-title{
text-align:center;
margin-bottom:40px;
color:var(--primary);
}

/* FEATURES */

.features{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:25px;
}

.feature{
background:white;
padding:25px;
border-radius:10px;
box-shadow:0 4px 12px rgba(0,0,0,0.05);
}

.feature h3{
color:var(--primary);
margin-bottom:10px;
}

/* INSTITUTION */

.institution{
background:white;
padding:40px;
border-radius:10px;
box-shadow:0 4px 12px rgba(0,0,0,0.05);
}

.institution p{
margin-bottom:15px;
}

/* FOOTER */

.footer{
background:white;
padding:30px;
text-align:center;
margin-top:40px;
font-size:14px;
}