* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #13151a;
    color: #fff;
    padding: 20px;
}

.container {
    background: rgba(30, 32, 40, 0.95);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    text-align: center;
    max-width: 600px;
    width: 90%;
    position: relative;
    overflow: hidden;
}

.container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #ff6b6b, #4ecdc4, #ff6b6b);
    background-size: 200% 100%;
    animation: gradientSlide 3s ease infinite;
}

@keyframes gradientSlide {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

h1 {
    color: #fff;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

p {
    color: #a0a0a0;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.module-card {
    background: rgba(40, 44, 52, 0.95);
    padding: 1.5rem;
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.module-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.module-title {
    color: #fff;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.module-description {
    color: #8a8a8a;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.button {
    background: linear-gradient(135deg, #4ecdc4, #45b8ac);
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    margin: 0.5rem;
}

.button:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.link-display {
    background: rgba(20, 22, 30, 0.95);
    padding: 12px;
    border-radius: 8px;
    margin: 1rem 0;
    word-break: break-all;
    font-family: monospace;
    color: #4ecdc4;
    display: none;
}

.success-message {
    color: #4ecdc4;
    margin-top: 1rem;
    display: none;
}

#redirectContent {
    display: none;
}

.redirect-container {
    text-align: center;
}

.loading {
    display: inline-block;
    width: 50px;
    height: 50px;
    border: 3px solid rgba(78, 205, 196, 0.3);
    border-radius: 50%;
    border-top-color: #4ecdc4;
    animation: spin 1s ease-in-out infinite;
    margin-bottom: 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.github-link {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: rgba(30, 32, 40, 0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    z-index: 1000;
}

.github-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

.github-link svg {
    width: 30px;
    height: 30px;
    fill: #fff;
}