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

body{
    background:#f4f4f4;
    color:#222;
}

.header{
    position:fixed;
    width:100%;
    top:0;
    left:0;
    background:#111;
    color:white;
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:18px 8%;
    z-index:999;
}

.logo{
    font-size:28px;
    font-weight:bold;
}

.logo span{
    color:#ff6600;
}

nav{
    display:flex;
    align-items:center;
    gap:25px;
}

nav a{
    color:white;
    text-decoration:none;
    transition:.3s;
}

nav a:hover{
    color:#ff6600;
}

.btn-login{
    background:#ff6600;
    padding:10px 20px;
    border-radius:8px;
    color:white;
}

.hero{
    margin-top:80px;
    height:90vh;
    display:flex;
    justify-content:center;
    align-items:center;
    text-align:center;
    color:white;
    background:
    linear-gradient(rgba(0,0,0,.65),rgba(0,0,0,.65)),
    url("../img/hero.jpg");
    background-size:cover;
    background-position:center;
}

.hero-content{
    max-width:850px;
    padding:20px;
}

.hero h1{
    font-size:56px;
    margin-bottom:25px;
}

.hero p{
    font-size:22px;
    margin-bottom:40px;
    line-height:1.6;
}

.hero-buttons{
    display:flex;
    justify-content:center;
    gap:20px;
    flex-wrap:wrap;
}

.btn-primary{
    background:#ff6600;
    color:white;
    text-decoration:none;
    padding:16px 34px;
    border-radius:10px;
    font-size:18px;
}

.btn-secondary{
    border:2px solid white;
    color:white;
    text-decoration:none;
    padding:16px 34px;
    border-radius:10px;
}

.cards{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:25px;
    padding:80px 10%;
}

.card{
    background:white;
    border-radius:15px;
    padding:35px;
    text-align:center;
    box-shadow:0 5px 20px rgba(0,0,0,.08);
}

.card h3{
    margin-bottom:20px;
    color:#ff6600;
}

.section{
    padding:90px 10%;
    text-align:center;
}

.section h2{
    font-size:40px;
    margin-bottom:35px;
}

.gray{
    background:#ececec;
}

.grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:20px;
    margin-top:40px;
}

.grid div{
    background:white;
    padding:35px;
    border-radius:12px;
    box-shadow:0 4px 12px rgba(0,0,0,.08);
    font-weight:bold;
}

.qr{
    background:#111;
    color:white;
}

.contact p{
    margin:15px 0;
    font-size:20px;
}

footer{
    background:#111;
    color:white;
    text-align:center;
    padding:30px;
}

.whatsapp{
    position:fixed;
    bottom:25px;
    right:25px;
    width:65px;
    height:65px;
    border-radius:50%;
    background:#25D366;
    color:white;
    text-decoration:none;
    display:flex;
    justify-content:center;
    align-items:center;
    font-size:34px;
    box-shadow:0 5px 20px rgba(0,0,0,.3);
}

@media(max-width:900px){

.header{
    flex-direction:column;
    gap:15px;
}

nav{
    flex-wrap:wrap;
    justify-content:center;
}

.hero h1{
    font-size:38px;
}

.hero p{
    font-size:18px;
}

.hero{
    height:auto;
    padding:120px 20px;
}

.section h2{
    font-size:32px;
}

}