/* RESET & BASE */
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:'Roboto',sans-serif;background:#f5f5f5;color:#333;}
header{position:sticky;top:0;width:100%;background:#004d40;color:white;padding:15px 30px;display:flex;align-items:center;justify-content:space-between;z-index:1000;box-shadow:0 4px 6px rgba(0,0,0,0.2);}
header img{height:50px;}
nav a{color:white;text-decoration:none;margin-left:20px;font-weight:700;transition:0.3s;position:relative;}
nav a.active::after{content:"";position:absolute;bottom:-5px;left:0;width:100%;height:3px;background:#26a69a;border-radius:2px;}
nav a:hover{color:#26a69a;}

/* HERO */
.hero{height:100vh;background:url('https://images.unsplash.com/photo-1522202176988-66273c2fd55f?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&q=1080') center/cover no-repeat fixed;display:flex;flex-direction:column;justify-content:center;align-items:center;color:white;text-align:center;position:relative;overflow:hidden;}
.hero::after{content:"";position:absolute;inset:0;background:rgba(0,0,0,0.5);}
.hero-content{position:relative;z-index:1;animation:fadeIn 2s ease-in-out;}
.hero h1{font-size:3.5rem;margin-bottom:20px;text-shadow:2px 2px 8px rgba(0,0,0,0.5);}
.hero p{font-size:1.8rem;margin-bottom:30px;text-shadow:1px 1px 5px rgba(0,0,0,0.5);}
.cta-btn{padding:15px 30px;background:#26a69a;color:white;font-weight:700;border:none;border-radius:50px;cursor:pointer;transition:0.3s;margin:5px;}
.cta-btn:hover{background:#00796b;transform:scale(1.1);box-shadow:0 10px 25px rgba(0,0,0,0.3);}
@keyframes fadeIn{from{opacity:0;transform:translateY(30px);}to{opacity:1;transform:translateY(0);}}

/* SECTIONS */
section{padding:120px 20px;max-width:1200px;margin:0 auto;opacity:0;transform:translateY(50px);transition:all 1s ease;}
section.visible{opacity:1;transform:translateY(0);}
section h2{text-align:center;margin-bottom:50px;color:#004d40;font-size:2.8rem;}
#about p{text-align:center;max-width:800px;margin:0 auto;}

/* PROJETS & ÉVÉNEMENTS */
.projects,.events{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;}
.project-card,.event-card{background:white;border-radius:20px;width:300px;text-align:center;overflow:hidden;position:relative;cursor:pointer;transition:all 0.7s ease-out;opacity:0;transform:translateY(50px) scale(0.95);}
.project-card img,.event-card img{width:100%;display:block;transition:0.5s;}
.project-card .overlay,.event-card .overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.5);opacity:0;display:flex;align-items:center;justify-content:center;color:white;font-size:1.1rem;text-align:center;padding:20px;transition:0.5s;}
.project-card:hover img,.event-card:hover img{transform:scale(1.1);}
.project-card:hover .overlay,.event-card:hover .overlay{opacity:1;}
.project-card h3,.event-card h3{margin:15px 0;color:#004d40;font-size:1.5rem;transition:0.3s;}
.project-card p,.event-card p{color:#555;transition:0.3s;}
.project-card:hover h3,.event-card:hover h3{color:#26a69a;}
.project-card:hover p,.event-card:hover p{color:#26a69a;}
.project-card.visible,.event-card.visible{opacity:1;transform:translateY(0) scale(1);}

/* FORMULAIRES */
form{max-width:600px;margin:0 auto;display:flex;flex-direction:column;gap:15px;background:white;padding:30px;border-radius:20px;box-shadow:0 10px 20px rgba(0,0,0,0.1);}
input,textarea{padding:15px;border-radius:10px;border:1px solid #ccc;font-size:1rem;}
form button{background:#26a69a;color:white;padding:15px;font-weight:700;border:none;border-radius:50px;cursor:pointer;transition:0.3s;}
form button:hover{background:#00796b;transform:scale(1.05);}

/* FOOTER */
footer{background:#001919;color:white;text-align:center;padding:40px 20px;font-size:0.9rem;}
footer i{margin:0 5px;}

/* RESPONSIVE */
@media(max-width:768px){.projects,.events{flex-direction:column;align-items:center;}}