/* --- Global Styles & Variables --- */
:root {
    --primary-color: #388e3c; /* A strong, friendly green */
    --secondary-color: #ffb74d; /* A warm, complementary accent orange */
    --text-color: #444; /* Dark gray for readability */
    --light-gray: #f5f5f5; /* Light background tone */
    --white: #ffffff;
    --shadow: 0 4px 12px rgba(0,0,0,0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-gray);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

h1, h2, h3, h4 {
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color 0.3s ease;
}

/* --- Header & Navigation --- */
.header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
}

.logo a {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

.nav {
    display: flex;
    align-items: center;
}

.nav-links {
    list-style: none;
    display: flex;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    font-weight: 500;
    padding: 0.5rem 0;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary-color);
    border-bottom: 2px solid var(--secondary-color);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

/* --- Hero Section --- */
.hero-section {
    height: 70vh;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--white);
    overflow: hidden; /* This hides any overflow from the images */
}

/* The slideshow container */
.hero-slideshow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

/* Styles for each image in the slideshow */
.slideshow-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0; /* All images start invisible */
    animation: imageFade 12s infinite; /* The animation lasts 18s and repeats forever */
}

.slideshow-image:nth-child(1) { animation-delay: 0s; }
.slideshow-image:nth-child(2) { animation-delay: 4s; } /* Fades in after 6 seconds */
.slideshow-image:nth-child(3) { animation-delay: 8s; } /* Fades in after 12 seconds */

/* The semi-transparent overlay */
.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 1; /* Make sure this is above the slideshow images */
}

.hero-content {
    position: relative;
    z-index: 2; /* Make sure this is above the overlay */
    max-width: 800px;
    padding: 0 1rem;
}

.hero-content h2 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    color: var(--white);
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: 2rem;
}

.cta-button {
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: 5px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.cta-button:hover {
    background-color: #ff9800;
    transform: translateY(-3px);
}

.section {
    padding: 5rem 0;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
}

.section-description {
    text-align: center;
    max-width: 700px;
    margin: -2rem auto 3rem;
    font-size: 1.1rem;
}

/* --- About Us Section --- */
.about-us-section {
    background-color: var(--white);
    text-align: center;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* --- What We Do Section --- */
.what-we-do-section {
    background-color: var(--light-gray);
}

.program-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.program-card {
    background-color: var(--white);
    box-shadow: var(--shadow);
    border-radius: 8px;
    overflow: hidden;
    padding: 2rem;
    transition: transform 0.3s ease;
    text-align: center;
}

.program-card:hover {
    transform: translateY(-10px);
}

.program-card h3 {
    font-size: 1.5rem;
    color: var(--text-color);
    transition: color 0.3s ease;
}

.program-card:hover h3 {
    color: var(--primary-color);
}

.program-card p {
    color: #666;
}

.impact-section {
    background-color: var(--white);
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.impact-card {
    background-color: var(--light-gray);
    box-shadow: var(--shadow);
    border-radius: 8px;
    padding: 2rem;
    transition: background-color 0.3s ease;
}

.impact-card:hover {
    background-color: var(--primary-color);
}

.impact-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    transition: color 0.3s ease;
}

.impact-card:hover i {
    color: var(--white);
}

.impact-card h3 {
    font-size: 2rem;
    color: var(--secondary-color);
    transition: color 0.3s ease;
}

.impact-card:hover h3 {
    color: var(--white);
}

.impact-card p {
    transition: color 0.3s ease;
}

.impact-card:hover p {
    color: rgba(255, 255, 255, 0.8);
}

/* --- Get Involved Section --- */
.get-involved-section {
    background-color: var(--light-gray);
}

.volunteer-form-wrapper {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--white);
    box-shadow: var(--shadow);
    padding: 2rem;
    border-radius: 8px;
}

.volunteer-form h3 {
    text-align: center;
    margin-bottom: 2rem;
}

.volunteer-form label {
    display: block;
    margin-top: 1rem;
    font-weight: 500;
}

.volunteer-form input,
.volunteer-form textarea {
    width: 100%;
    padding: 0.8rem;
    margin-top: 0.5rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
}

.submit-button {
    width: 100%;
    padding: 1rem;
    margin-top: 1.5rem;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.submit-button:hover {
    background-color: #2e7d32;
    transform: translateY(-3px);
}

/* --- Footer --- */
.footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem 0;
    text-align: center;
}

.footer-bottom p {
    margin: 0;
    opacity: 0.8;
}

/* --- Keyframe Animation for Slideshow --- */
@keyframes imageFade {
    0% { opacity: 0; }
    20% { opacity: 1; }
    33.33% { opacity: 1; }
    53.33% { opacity: 0; }
    100% { opacity: 0; }
}

/* --- Mobile Responsiveness --- */
@media (max-width: 768px) {
    .header-container {
        padding: 1rem;
    }

    .nav-links {
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.5s ease-in-out;
        border-top: 1px solid #e0e0e0;
    }

    .nav-links.active {
        max-height: 300px;
    }
    
    .nav-links li {
        margin: 0;
        text-align: center;
        border-bottom: 1px solid #e0e0e0;
    }
    
    .nav-links li:last-child {
        border-bottom: none;
    }

    .nav-links a {
        display: block;
        padding: 1rem;
        color: var(--text-color);
    }
    
    .nav-links a:hover {
        background-color: var(--light-gray);
        border-bottom: none;
    }

    .nav-toggle {
        display: block;
    }

    .hero-content h2 {
        font-size: 2.5rem;
    }
    
    .program-card {
        padding: 1.5rem;
    }
}