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

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
}

header {
    background-color: #2c3e50;
    color: #ecf0f1;
    text-align: center;
    padding: 20px 0;
    margin-bottom: 20px;
}

h1 {
    font-size: 1.8rem;
}

main {
    display: flex;
    flex-direction: column;
    align-items: center;
}

form {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    max-width: 500px;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin: 30px 30px;
}

label {
    font-size: 1rem;
    font-weight: bold;
}

select, button {
    padding: 10px;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button {
    background-color: #2c3e50;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #92b4c5;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background-color: white;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    overflow: hidden;
}

th, td {
    padding: 12px 100px;
    text-align: center;
    border-bottom: 1px solid #ddd;
    margin-left: 100px;
    margin-right: 100px;
}

th {
    background-color: #2c3e50;
    color: white;
}

td {
    background-color: #f9f9f9;
}

td a img.play-btn {
    width: 30px; 
    height: auto;
    cursor: pointer;
}

td a img.play-btn:hover {
    opacity: 0.8; 
}

.loader {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    font-size: 1.2em;
    color: #333;
}

@media (max-width: 600px) {
    .table-responsive {
        overflow-x: auto;
    }
    
    th, td {
        font-size: 0.9rem;
        padding: 8px 10px;
    }
}