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

body {
    font-family: Arial, Helvetica, sans-serif;
    color: #333;
    line-height: 1.6;
    background: #ffffff;
}

header {
    background: #2f5d34;
    padding: 15px 5%;
}

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

.logo img {
    width: 130px;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 25px;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

.hero {
    min-height: 80vh;
    background: linear-gradient(
        rgba(0,0,0,0.45),
        rgba(0,0,0,0.45)
    ),
    url("images/albero.jpg");

    background-size: cover;
    background-position: center;

    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;

    color: white;
    padding: 40px;
}

.hero h1 {
    font-size: 50px;
    margin-bottom: 20px;
}

.hero h2 {
    font-size: 30px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 20px;
    max-width: 700px;
}

.button {
    display: inline-block;
    margin-top: 25px;
    padding: 15px 30px;
    background: #8dbb4a;
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
}

section {
    padding: 60px 10%;
}

section h2 {
    text-align: center;
    color: #2f5d34;
    font-size: 32px;
    margin-bottom: 30px;
}

.green-section {
    background: #f2f6ef;
}

.cards {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 25px;
}

.card {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.card h3 {
    color: #2f5d34;
    margin-bottom: 15px;
}

.mission {
    background: #2f5d34;
    color: white;
    text-align: center;
}

.mission h2 {
    color: white;
}

.gallery-placeholder {
    height: 250px;
    background: #eeeeee;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

footer {
    background: #222;
    color: white;
    text-align: center;
    padding: 20px;
}


@media (max-width: 800px) {

    header {
        padding: 15px 20px;
    }

    nav {
        flex-direction: column;
        gap: 15px;
    }

    .logo img {
        width: 110px;
    }

    nav ul {
        margin-top: 5px;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px 18px;
    }

    nav a {
        font-size: 14px;
    }

    .hero {
        min-height: 75vh;
        padding: 30px 20px;
    }

    .hero h1 {
        font-size: 36px;
        line-height: 1.2;
        margin-bottom: 15px;
    }

    .hero h2 {
        font-size: 22px;
        line-height: 1.3;
        margin-bottom: 15px;
    }

    .hero p {
        font-size: 17px;
    }

    section {
        padding: 50px 20px;
    }

    section h2 {
        font-size: 28px;
    }

    .cards {
        grid-template-columns: 1fr;
    }

    .gallery-section {
        padding: 50px 20px;
    }

    .gallery {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .gallery img {
        height: 240px;
    }

    .tree-hero {
        height: 300px;
    }

    .features {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feature-box {
        padding: 30px 20px;
    }

    .button {
        padding: 14px 25px;
    }

}
.hero h1,
.hero h2,
.hero p {
    color: white;
}

.gallery-section {
    padding: 80px 10%;
    background: #f8f8f8;
    text-align: center;
}

.gallery-section p {
    margin-bottom: 35px;
    color: #666;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px,1fr));
    gap: 20px;
}

.gallery img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 8px 20px rgba(0,0,0,.15);
    transition: .3s;
    cursor: pointer;
}

.gallery img:hover {
    transform: scale(1.05);
}
.tree-hero {
    width: 100%;
    max-width: 900px;
    height: 500px;
    object-fit: cover;
    display: block;
    margin: 30px auto;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}
.why-us{
    padding:80px 10%;
    background:#ffffff;
    text-align:center;
}

.features{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:30px;
    margin-top:40px;
}

.feature-box{
    background:#fff;
    border-radius:15px;
    padding:35px 25px;
    box-shadow:0 8px 20px rgba(0,0,0,.10);
    transition:.3s;
}

.feature-box:hover{
    transform:translateY(-8px);
}

.icon{
    font-size:50px;
    margin-bottom:15px;
}

.feature-box h3{
    color:#2f5d34;
    margin-bottom:15px;
}

.feature-box p{
    color:#555;
    line-height:1.6;
}