body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #121212;
    color: #e0e0e0;
}
header {
    background-color: #1a1a1a;
    color: #ffffff;
    padding: 20px 0;
    text-align: center;
}
header .logo img { width: 150px; }
nav ul { list-style: none; padding: 0; text-align: center; margin: 0; }
nav ul li { display: inline; margin: 0 15px; }
nav ul li a { color: #ffffff; text-decoration: none; font-weight: bold; transition: color 0.3s; }
nav ul li a:hover { color: #5c9fdf; }

.carousel { width: 100%; max-width: 1350px; max-height: 650px; overflow: hidden; position: relative; margin: 0 auto; }
.carousel-slide { display: flex; transition: transform 1s ease; }
.carousel-slide img { width: 100%; height: 100%; object-fit: cover; display: none; }
.carousel-slide img:first-child { display: block; }

.sidebar { width: 250px; background-color: #1f1f1f; padding: 20px; float: left; }
.sidebar img { width: 100%; height: auto; }
.sidebar-item button { background-color: #5c9fdf; color: #fff; border: none; padding: 10px 20px; font-size: 16px; cursor: pointer; border-radius: 5px; transition: background-color 0.3s; }
.sidebar-item button:hover { background-color: #4a8dbf; }

main { margin-left: 270px; padding: 20px; }
h1 { color: #ffffff; }
h2 { color: #dddddd; }
h3 { color: #d0d0d0; }
p { color: #cccccc; line-height: 1.6; }

table { width: 100%; margin-top: 20px; border-collapse: collapse; }
th, td { padding: 12px; text-align: left; border: 1px solid #555; }
th { background-color: #333; color: #fff; }
td { background-color: #1f1f1f; color: #e0e0e0; }
tr:nth-child(even) td { background-color: #292929; }
tr:hover td { background-color: #444; }

footer { background-color: #1a1a1a; color: #ffffff; text-align: center; padding: 10px; }
footer .footer-logo img { width: 100px; }
footer p { font-size: 14px; }

button a { text-decoration: none; color: white; font-weight: bold; }
button a:hover { color: #4a8dbf; }

@media (max-width: 1024px) {
    .carousel { max-width: 100%; }
}
@media (max-width: 768px) {
    .sidebar { width: 100%; margin-bottom: 20px; float: none; }
    main { margin-left: 0; padding: 10px; }
    nav ul li { display: block; margin: 10px 0; }
    nav ul li a { font-size: 18px; }
    .logo img { width: 120px; }
    .sidebar-item button { width: 100%; }
}
@media (max-width: 480px) {
    .logo img { width: 100px; }
    .sidebar { padding: 10px; }
    main { padding: 5px; }
    h1, h2, h3 { font-size: 20px; }
    p { font-size: 14px; }
}