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

:root{
    --primary: #0F172A;
    --accent: #0284C7;
    --success: #16A34A;
    --background: #F8FAFC;
    --text: #333333;
    --white: #FFFFFF;
}

body{
    line-height:1.6;
    color:#333;
}

header{
    background:var(--primary);
    color:var(--white);
    padding:20px 0;
    position:sticky;
    top:0;
    z-index:100;
}

.container{
    width:90%;
    max-width:1200px;
    margin:auto;
}

nav{	
    display:flex;
    justify-content:space-between;
    align-items:center;
}

.logo{
    font-size:28px;
    font-weight:bold;
    color:var(--accent);
}

.language-switch button{
    background:var(--accent);
    color:var(--white);
    border:none;
    padding:8px 15px;
    cursor:pointer;
    border-radius:5px;
}

.hero{
     background:linear-gradient(
        135deg,
        var(--primary),
        #1E3A5F
    );
    color:white;
    padding:100px 20px;
    text-align:center;
}

.hero h1{
    font-size:48px;
    margin-bottom:20px;
}

.hero p{
    max-width:800px;
    margin:auto;
    font-size:20px;
}

.btn{
    display:inline-block;
    margin-top:30px;
    background:var(--accent);
    color:var(--white);
    padding:15px 30px;
    text-decoration:none;
    border-radius:5px;
}
.btn:hover{
    opacity:.9;
}

section{
    padding:80px 0;
}

.section-title{
    text-align:center;
    margin-bottom:50px;
    color:var(--primary);
}

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

.card{
    background:var(--background);
    padding:25px;
    border-radius:10px;
    box-shadow:0 2px 8px rgba(0,0,0,.1);
}

.card h3{
    color:#0f172a;
    margin-bottom:15px;
}

.about{
    background:#f1f5f9;
}

.contact{
    background:var(--primary);
    color:white;
    text-align:center;
}

.contact a{
    color:var(--accent);
}

footer{
    text-align:center;
    padding:20px;
    background:#08111F;
    color:white;
}

.whatsapp{
    position:fixed;
    right:20px;
    bottom:20px;
    background:var(--success);
    color:white;
    text-decoration:none;
    padding:15px 20px;
    border-radius:50px;
    font-weight:bold;
    box-shadow:0 4px 10px rgba(0,0,0,.3);
}

.hidden{
    display:none;
}

.hero-tagline{
    font-size:1.1rem;
    margin:15px 0 25px 0;
    color:#CBD5E1;
    letter-spacing:1px;
    font-weight:600;
}


form{
    max-width:700px;
    margin:30px auto;
}

form input,
form textarea{

    width:100%;
    padding:15px;
    margin-bottom:15px;
    border:none;
    border-radius:5px;
}

form button{

    background:#38bdf8;
    color:white;
    border:none;
    padding:15px 30px;
    border-radius:5px;
    cursor:pointer;
}

.success-message{
    background:#16A34A;
    color:white;
    padding:15px;
    border-radius:6px;
    margin:20px auto;
    max-width:700px;
    text-align:center;
    animation:fadeOut 5s forwards;
    animation-delay:3s;
}

@keyframes fadeOut{
    to{
        opacity:0;
        visibility:hidden;
    }
}