body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #2c313c;
    color: #dce1ec;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
}

header {
    background: #1b1e23;
    color: #dce1ec;
    padding: 20px 0;
    text-align: center;
    border-bottom: 2px solid #568af2;
}

header h1 {
    margin: 0;
    font-size: 2.5em;
    color: #f5f6f9;
}

nav ul {
    padding: 0;
    list-style: none;
    margin: 10px 0 0;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav ul li a {
    color: #c3ccdf;
    text-decoration: none;
    font-size: 1.2em;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: #dce1ec;
}

.section {
    padding: 20px 0;
    border-bottom: 1px solid #3c4454;
    background-color: #1e2229;
    flex: 1;
}

.section h2 {
    font-size: 2em;
    margin-bottom: 10px;
    color: #f5f6f9;
}

footer {
    background: #1b1e23;
    color: #dce1ec;
    text-align: center;
    padding: 10px 0;
    border-top: 2px solid #568af2;
}

.main-btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: #568af2;
    color: #f5f6f9;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-size: 1em;
    transition: background-color 0.3s;
}

.main-btn a {
    color: #f5f6f9;
    text-decoration: none;
}

.main-btn:hover {
    background-color: #6c99f4;
}

.download-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}

.download-item {
    background-color: #272c36;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    width: 200px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
}

.download-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.download-item img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 10px;
}

.download-item p {
    margin: 10px 0 10px;
    color: #dce1ec;
}

.download-item button {
    display: block;
    width: 100%;
    padding: 10px 0;
    background-color: #568af2;
    color: #f5f6f9;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1em;
    transition: background-color 0.3s, transform 0.3s;
}

.download-item button:hover {
    background-color: #6c99f4;
    transform: scale(1.05);
}

.download-item button:active {
    background-color: #3f6fd1;
}

.description {
    display: none;
    background-color: rgba(0, 0, 0, 0.7);
    color: #fff;
    padding: 10px;
    border-radius: 5px;
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    z-index: 10;
    opacity: 0;
    transition: opacity 0.3s;
}

.download-item:hover .description {
    display: block;
    opacity: 1;
}