:root {
    --primary-color: #4CAF50; /* Green for Co-op */
    --secondary-color: #FFC107; /* Yellow for fun */
    --accent-color: #2196F3; /* Blue for trust */
    --text-color: #333;
    --bg-color: #f4f9f4; /* Light green tint */
    --light-bg: #ffffff;
    --font-family: 'Kanit', sans-serif;
}

body {
    font-family: var(--font-family);
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

header {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo-mascot-small {
    width: 50px; /* Adjust as needed */
    height: auto;
    margin-right: 10px;
    border-radius: 50%;
    border: 2px solid var(--secondary-color);
}

header h1 {
    margin: 0;
    font-size: 1.8rem;
    font-weight: 700;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
}

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    padding: 5px 10px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

nav ul li a:hover, nav ul li a.active {
    background-color: var(--secondary-color);
    color: var(--text-color);
}

.music-button {
    background-color: var(--secondary-color);
    color: var(--text-color);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    font-family: var(--font-family);
    font-size: 0.9rem;
    transition: transform 0.2s ease;
}
.music-button:hover {
    transform: scale(1.05);
}


main {
    padding: 2rem;
}

.hero {
    text-align: center;
    padding: 2rem 1rem;
    background-color: var(--light-bg);
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 1rem;
    align-items: center;
}

.hero-text {
    grid-column: 1 / -1; /* Span full width */
    text-align: center;
}


.hero h2 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.hero p {
    font-size: 1.1rem;
    color: #555;
    margin-bottom: 1.5rem;
}

.mascot-display {
    grid-row: 2;
    grid-column: 1 / 2;
    text-align: center; /* Or right for the boy */
}

.main-mascot {
    max-width: 80%;
    height: auto;
    max-height: 300px; /* Control size */
    border-radius: 10px;
    animation: bounceMascot 2s infinite ease-in-out alternate;
}

@keyframes bounceMascot {
    0% { transform: translateY(0); }
    100% { transform: translateY(-10px); }
}

.intro-video {
    grid-row: 2;
    grid-column: 2 / 3;
    text-align: center; /* Or left for the girl or center for video */
}

.intro-video h3 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.video-placeholder {
    display: inline-block;
    position: relative;
    border: 3px solid var(--accent-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.video-placeholder img {
    display: block;
    max-width: 100%;
    height: auto;
}

.play-button-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.8);
    background-color: rgba(0,0,0,0.3);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-color 0.3s ease;
}

.video-placeholder:hover .play-button-overlay {
    background-color: rgba(0,0,0,0.5);
}


.lesson-gateway {
    text-align: center;
    padding: 2rem;
    background-color: var(--accent-color); /* Light blue background for this section */
    color: white;
    border-radius: 15px;
    margin-bottom: 2rem;
}

.lesson-gateway h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.lesson-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem; /* Increased gap */
}

.lesson-btn {
    background-color: var(--light-bg);
    color: var(--text-color);
    text-decoration: none;
    padding: 1.5rem; /* Increased padding */
    border-radius: 10px;
    width: 180px; /* Fixed width */
    min-height: 180px; /* Fixed min height */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.lesson-btn:hover {
    transform: translateY(-5px) scale(1.03);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    background-color: var(--secondary-color);
}

.lesson-icon {
    margin-bottom: 1rem; /* Increased margin */
}

.lesson-icon svg {
    width: 50px; /* Slightly larger icon */
    height: 50px;
    fill: var(--primary-color); /* Icon color */
}
.lesson-btn:hover .lesson-icon svg {
    fill: white;
}


.lesson-btn span {
    font-size: 1rem;
    font-weight: 500;
}
.lesson-btn:hover span {
    color: white;
}

footer {
    text-align: center;
    padding: 1.5rem;
    background-color: #333;
    color: #f4f4f4;
    font-size: 0.9rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        text-align: center;
    }
    nav ul {
        flex-direction: column;
        margin-top: 1rem;
    }
    nav ul li {
        margin: 5px 0;
    }
    .hero {
        grid-template-columns: 1fr; /* Stack mascot and video on smaller screens */
    }
    .mascot-display, .intro-video {
        grid-column: 1 / -1; /* Full width for both */
    }
    .main-mascot {
        max-height: 200px;
    }
    .lesson-buttons {
        flex-direction: column;
        align-items: center;
    }
    .lesson-btn {
        width: 80%;
        max-width: 300px;
    }
}

/* Styles for About Page (about.html) */

.about-page-main {
    max-width: 900px; /* Limit width for readability on about page */
    margin: 2rem auto; /* Center the main content */
    padding: 1rem;
    background-color: var(--light-bg);
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.about-hero {
    text-align: center;
    padding: 2rem 1rem;
    border-bottom: 2px solid var(--primary-color-light, #e0f2f1); /* Light separator */
    margin-bottom: 2rem;
}

.about-mascot-hero {
    max-width: 250px; /* Adjust as needed */
    height: auto;
    margin-bottom: 1rem;
    border-radius: 50%;
    border: 4px solid var(--secondary-color);
}

.about-hero h2 {
    color: var(--primary-color);
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
}

.about-hero p {
    font-size: 1.1rem;
    color: #555;
}

.about-content {
    padding: 0 1rem;
}

.about-section {
    margin-bottom: 2.5rem;
    padding: 1.5rem;
    background-color: #fff; /* White cards for sections */
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.about-section h3 {
    color: var(--accent-color);
    font-size: 1.6rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--secondary-color);
    display: inline-block; /* To make border only as wide as text */
}

.about-section p {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 0.75rem;
}

.about-section p strong {
    color: var(--text-color);
    font-weight: 500;
}

.contact-info p {
    margin-bottom: 0.5rem; /* Tighter spacing for contact details */
}

.thank-you-message {
    text-align: center;
    background-color: var(--primary-color-xlight, #e8f5e9); /* Very light green for thank you */
    border-left: 5px solid var(--primary-color);
}

.thank-you-message p {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.thank-you-mascot {
    max-width: 150px;
    height: auto;
    margin-top: 1rem;
    animation: bounceMascot 2s infinite ease-in-out alternate; /* Reusing animation from index */
}

/* Ensure consistent main padding with index.html if not using about-page-main for centering */
/* If you had general 'main' padding in style.css, it will apply. If not: */
/*
main {
    padding: 2rem; // This might already exist in your style.css
}
*/