body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f4f7fa;
    margin: 0;
    padding: 0;
    color: #333;
}

.container {
    width: 95%;
    max-width: 1200px;
    margin: 30px auto;
    background: #fff;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

h2, h3 {
    color: #2c3e50;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

table th, table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

table th {
    background: #3498db;
    color: #fff;
    font-weight: 500;
}

table tr:hover {
    background: #f1f1f1;
}

button {
    padding: 6px 12px;
    background: #3498db;
    border: none;
    border-radius: 5px;
    color: white;
    cursor: pointer;
    font-weight: 500;
}

button:hover {
    background: #2980b9;
}

.edit-box {
    display: none;
    margin-top: 5px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    background: #fafafa;
}

input[type="text"], input[type="number"], input[type="datetime-local"], input[type="email"] {
    padding: 8px;
    margin: 5px 0;
    width: 100%;
    box-sizing: border-box;
    border-radius: 5px;
    border: 1px solid #ccc;
}

canvas {
    margin: 20px 0;
    border-radius: 10px;
    background: #fff;
    padding: 10px;
    box-shadow: 0 6px 15px rgba(0,0,0,0.05);
}

#status {
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 5px;
    background: #ecf0f1;
    font-weight: 500;
}

#clockMessage {
    margin-top: 10px;
}

a {
    color: #3498db;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

@media (max-width: 768px){
    table th, table td {
        font-size: 14px;
        padding: 8px;
    }
    button {
        padding: 5px 10px;
        font-size: 14px;
    }
}
.summary {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}
.summary .card {
    background: #f1f1f1;
    padding: 15px 25px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    font-weight: bold;
    text-align: center;
}