body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: #fff;
    background-color: #1a1a1a;
}

header {
    background: linear-gradient(135deg, #6a1b9a, #3f51b5);
    color: white;
    padding: 40px 0;
    text-align: center;
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

header.visible {
    opacity: 1;
    transform: translateY(0);
}

nav {
    background: #333;
    padding: 15px;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

nav a {
    color: #bb86fc;
    margin: 0 20px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    transition: color 0.3s ease;
}

nav a:hover {
    color: #fff;
}

section {
    padding: 40px 20px;
    margin: 20px 0;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    background-color: #2c2c2c;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

h2 {
    color: #bb86fc;
    margin-bottom: 20px;
    font-size: 2em;
}

.tab-system {
    margin-top: 20px;
}

.tab-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.tab-button {
    padding: 10px 20px;
    background-color: #3a3a3a;
    color: #bb86fc;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.tab-button:hover {
    background-color: #4a148c;
    transform: translateY(-3px);
}

.tab-button.active {
    background-color: #6a1b9a;
    color: #fff;
}

.tab-content {
    background-color: #3a3a3a;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.tab-pane {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.download-button {
    display: inline-block;
    padding: 10px 20px;
    background-color: #6a1b9a;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.download-button:hover {
    background-color: #4a148c;
}

footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
    box-shadow: 0 -4px 8px rgba(0, 0, 0, 0.3);
}

.coop-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.coop-logos span {
    color: #bb86fc;
    font-size: 1.5em;
}

.logo-img {
    width: 60px;
    height: auto;
}

.credit {
    margin-top: 10px;
    font-style: italic;
    color: #ccc;
}