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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

/* Header styles */
.site-header {
    text-align: center;
    padding: 4rem 2rem;
}

.site-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.8;
}

/* Theme toggle */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
}

#theme-switch {
    padding: 10px 20px;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
}

/* Features section */
.features {
    padding: 4rem 2rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
    max-width: 1200px;
    margin: 2rem auto;
}

.feature-card {
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s;
}

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

.feature-card h3 {
    margin-bottom: 1rem;
}

/* Join section */
.join-section {
    text-align: center;
    padding: 4rem 2rem;
}

.join-button {
    display: inline-block;
    padding: 1rem 2rem;
    font-size: 1.2rem;
    border-radius: 25px;
    text-decoration: none;
    transition: transform 0.3s;
}

.join-button:hover {
    transform: scale(1.05);
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    margin-top: 2rem;
}