/* General Styles */
:root {
    --primary-color: #1a1a1a;
    --secondary-color: #252525;
    --accent-color: #ff6b6b;
    --text-color: #ffffff;
    --link-color: #4dabf7;
    --highlight-color: #ffd43b;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--primary-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

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

a:hover {
    color: var(--accent-color);
}

.highlight {
    color: var(--highlight-color);
    font-weight: bold;
}

/* Header Styles */
header {
    text-align: center;
    margin-bottom: 40px;
    padding: 20px;
    background-color: var(--secondary-color);
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.browser-notice {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 5px;
    margin: 20px 0;
}

.community-links {
    margin-top: 20px;
}

.qr-placeholder {
    display: inline-block;
    background-color: #333;
    width: 100px;
    height: 100px;
    line-height: 100px;
    margin: 10px auto;
    border-radius: 5px;
    text-align: center;
}

/* Mobile Navigation */
.mobile-nav {
    display: none;
    background-color: var(--secondary-color);
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    overflow-x: auto;
    white-space: nowrap;
}

.mobile-nav a {
    display: inline-block;
    padding: 8px 15px;
    margin-right: 10px;
    background-color: #333;
    border-radius: 20px;
    font-size: 0.9rem;
}

.mobile-nav a:last-child {
    margin-right: 0;
}

/* Content Section Styles */
.content-section {
    margin-bottom: 40px;
    padding: 20px;
    background-color: var(--secondary-color);
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--accent-color);
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 10px;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 15px;
}

.grid-item {
    background-color: #333;
    padding: 15px;
    border-radius: 5px;
    text-align: center;
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.grid-item:hover {
    background-color: #444;
    transform: translateY(-5px);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: #ff8c8c;
}

/* Footer Styles */
footer {
    text-align: center;
    margin-top: 40px;
    padding: 20px;
    background-color: var(--secondary-color);
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.disclaimer {
    margin: 20px 0;
    font-size: 0.9rem;
    color: #aaa;
}

.copyright {
    margin-top: 20px;
    font-size: 0.8rem;
}

/* Responsive Styles */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .grid-container {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
    
    .mobile-nav {
        display: block;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.8rem;
    }
    
    .grid-container {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
}