body {
    margin: 0;
    font-family: Arial, sans-serif;
    color: white;
}

nav {
    display: flex;
    justify-content: space-between;
    background: rgba(0,0,0,0.7);
    padding: 15px;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

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

.content {
    text-align: center;
    padding: 100px 20px;
}



}

.green {
    background: linear-gradient(green, darkgreen);
}

.pollution {
    background: linear-gradient(gray, black);
}

.solutions {
    background: linear-gradient(#2ecc71, #27ae60);
}

button {
    padding: 10px 20px;
    font-size: 16px;
    background: green;
    border: none;
    color: white;
    cursor: pointer;
}
.green .content {
    max-width: 1000px;
    margin: auto;
    padding: 60px 30px;
    text-align: left;
}


.green .hero {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-left: 5px solid #a5d6a7;
    border-radius: 8px;
    margin-bottom: 40px;
}

.green h1 {
    margin-top: 0;
    font-size: 32px;
}

.green h2 {
    margin-top: 20px;
    color: #c8e6c9;
}


.green section {
    margin-bottom: 50px;
    line-height: 1.7;
}

.green hr {
    border: none;
    border-top: 2px solid rgba(255,255,255,0.3);
    margin: 10px 0 20px;
}


.green .image-box img {
    width: 100%;
    border-radius: 10px;
    margin: 25px 0;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}


.bottom-nav {
    position: relative;
    height: 80px;
}

.btn {
    padding: 12px 25px;
    background: rgba(0,0,0,0.6);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    position: absolute;
    transition: 0.3s;
}

.btn:hover {
    background: rgba(0,0,0,0.9);
    transform: scale(1.05);
}

.left {
    left: 20px;
    bottom: 20px;
}

.right {
    right: 20px;
    bottom: 20px;
}
.pollution .content {
    max-width: 1000px;
    margin: auto;
    padding: 60px 30px;
    text-align: left;
}


.pollution-hero {
    background: rgba(0, 0, 0, 0.4);
    padding: 30px;
    border-radius: 8px;
    margin-bottom: 40px;
}

.two-columns {
    display: flex;
    gap: 30px;
    align-items: center;
    margin-bottom: 50px;
}

.two-columns div {
    flex: 1;
}


.pollution h1 {
    font-size: 32px;
}

.pollution h2 {
    color: #ddd;
}

.pollution ul {
    padding-left: 20px;
}

.pollution li {
    margin-bottom: 10px;
}


.pollution .image-box img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.5);
}


@media (max-width: 768px) {
    .two-columns {
        flex-direction: column;
    }
}
.solutions .content {
    max-width: 1100px;
    margin: auto;
    padding: 60px 20px;
    text-align: center;
}


.solutions-hero {
    margin-bottom: 50px;
}

.solutions-hero h1 {
    font-size: 34px;
}

.solutions-hero p {
    max-width: 700px;
    margin: auto;
}


.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.card {
    background: rgba(255,255,255,0.1);
    padding: 25px;
    border-radius: 10px;
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-8px);
    background: rgba(255,255,255,0.2);
}


.call-to-action {
    background: rgba(0,0,0,0.3);
    padding: 30px;
    border-radius: 10px;
}


.bottom-nav {
    position: relative;
    height: 80px;
}

.btn.center {
    left: 50%;
    transform: translateX(-50%);
    bottom: 20px;
}
.green .content {
    max-width: 1100px;
    margin: auto;
    padding: 60px 20px;
}


.nature-hero {
    text-align: center;
    margin-bottom: 40px;
}

.nature-hero h1 {
    font-size: 36px;
}


.quote {
    text-align: center;
    font-style: italic;
    font-size: 20px;
    margin: 40px 0;
    opacity: 0.9;
}


.split {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 60px;
}

.split.reverse {
    flex-direction: row-reverse;
}

.split .text {
    flex: 1;
    line-height: 1.7;
}

.split .image {
    flex: 1;
}

.split img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.4);
}


.highlight {
    background: rgba(255,255,255,0.1);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    margin-bottom: 60px;
}


@media (max-width: 768px) {
    .split {
        flex-direction: column;
    }

    .split.reverse {
        flex-direction: column;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


body.home {
    background: 
        linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.4)),
        url("pamant.jpg");
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}


body.home .content {
    max-width: 900px;
    margin: 60px auto;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    text-align: center;
    animation: fadeIn 1s ease;
}


body.home h1 {
    margin-bottom: 20px;
}

body.home p {
    line-height: 1.6;
    margin-bottom: 15px;
}


body.home button {
    margin-top: 20px;
    padding: 12px 25px;
    border: none;
    background: #27ae60;
    color: white;
    border-radius: 25px;
    cursor: pointer;
    transition: 0.3s;
}

body.home button:hover {
    background: #219150;
    transform: scale(1.05);
}


body.home .prof-box {
    margin-top: 30px;
    padding: 15px;
    border: 2px dashed #27ae60;
    border-radius: 10px;
    background: #f4fff7;
}


body.home footer {
    margin-top: 50px;
    padding: 15px;
    text-align: center;
    background: #2c3e50;
    color: white;
    font-size: 14px;
}


body {
    animation: pageFade 0.6s ease;
}

@keyframes pageFade {
    from {
        opacity: 0;
        transform: scale(0.98);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}
body {
    opacity: 0;
    animation: pageFade 0.6s ease forwards;
}

@keyframes pageFade {
    from {
        opacity: 0;
        transform: translateY(25px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}