/* Global Variables - Nature Theme */
:root {
    --primary-color: #2a9d8f;
    /* Teal Green */
    --secondary-color: #264653;
    /* Dark Cyan */
    --accent-color: #e9c46a;
    /* Sand Yellow */
    --text-color: #333;
    --bg-light: #f4f9f4;
    /* Very Light Green */
    --white: #ffffff;
    --font-heading: 'Lora', serif;
    --font-body: 'Open Sans', sans-serif;
}

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

body {
    font-family: var(--font-body);
    color: var(--text-color);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Buttons */
.btn-primary,
.btn-donate {
    display: inline-block;
    padding: 10px 25px;
    border-radius: 5px;
    transition: 0.3s;
    font-weight: 600;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
}

.btn-donate {
    background-color: var(--accent-color);
    color: var(--secondary-color);
}

.btn-donate:hover {
    background-color: #d4b05b;
}

/* Header */
.header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    height: 70px;
    display: flex;
    align-items: center;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

.nav-list {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-list a {
    color: var(--secondary-color);
    font-weight: 600;
}

.nav-list a:hover {
    color: var(--primary-color);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--secondary-color);
    margin: 5px 0;
}

/* Hero Section */
.hero {
    height: 60vh;
    background-image: url('https://via.placeholder.com/1920x1080/264653/ffffff?text=Nature+Landscape');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
}

.hero-content h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* Common Section Styles */
.section {
    padding: 80px 0;
}

.bg-light {
    background-color: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

/* Grid Layouts */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.about-image img {
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* Team Card */
.team-card {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    max-width: 400px;
    margin: 0 auto;
    border-top: 5px solid var(--primary-color);
}

.team-photo img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 20px;
    object-fit: cover;
    border: 3px solid var(--bg-light);
}

.team-info h3 {
    color: var(--secondary-color);
    margin-bottom: 10px;
    font-size: 1.5rem;
}

.team-info .position {
    color: var(--primary-color);
    font-weight: bold;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.team-info .email {
    color: #666;
    font-style: italic;
}

/* Feature Card */
.feature-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.feature-card h3 {
    padding: 20px 20px 10px;
    color: var(--secondary-color);
}

.feature-card p {
    padding: 0 20px 20px;
    color: #666;
}

/* Footer */
.footer {
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
}

.footer h3 {
    font-family: var(--font-heading);
    margin-bottom: 10px;
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Mobile Nav */
.mobile-nav {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background-color: var(--white);
    padding: 20px;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    transform: translateY(-150%);
    transition: 0.3s;
    z-index: 99;
}

.mobile-nav.active {
    transform: translateY(0);
}

.mobile-nav-list li {
    margin-bottom: 15px;
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 30px;
    }
}