/* style.css */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, 
"Helvetica Neue", Arial, sans-serif;
    background-color: #f4f7f6;
    color: #333;
    margin: 0;
    line-height: 1.6;
}
.container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.login-container {
    max-width: 400px;
    margin: 100px auto;
    padding: 30px;
}
input[type="text"], input[type="password"], input[type="file"], select, textarea 
{
    width: 100%;
    padding: 12px;
    margin: 8px 0 16px;
    border: 1px solid #ddd;
    border-radius: 5px;
    box-sizing: border-box; /* Penting untuk padding */
}
/* Anda minta textarea besar, walaupun borang kini untuk fail */
textarea {
    min-height: 150px;
    font-family: inherit;
}
.btn {
    display: inline-block;
    background-color: #007bff;
    color: #fff;
    padding: 12px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-size: 16px;
    text-align: center;
}
.btn-danger { background-color: #dc3545; }
.btn-secondary { background-color: #6c757d; }
.btn-submit { width: 100%; }

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}
th, td {
    border: 1px solid #ddd;
    padding: 12px;
    text-align: left;
}
th {
    background-color: #f9f9f9;
    font-weight: 600;
}
tr:nth-child(even) { background-color: #fdfdfd; }
nav {
    background-color: #343a40;
    padding: 15px 30px;
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
nav h1 { margin: 0; font-size: 24px; }
nav a { color: #fff; text-decoration: none; }
.error {
    background-color: #f8d7da;
    color: #721c24;
    padding: 10px;
    border: 1px solid #f5c6cb;
    border-radius: 5px;
    margin-bottom: 15px;
}
.success {
    background-color: #d4edda;
    color: #155724;
    padding: 10px;
    border: 1px solid #c3e6cb;
    border-radius: 5px;
    margin-bottom: 15px;
}
.score-red { color: #dc3545; font-weight: bold; }
.score-yellow { color: #ffc107; font-weight: bold; }
.score-green { color: #28a745; font-weight: bold; }
.processing { color: #007bff; font-style: italic; }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}
.stat-card {
    background-color: #f9f9f9;
    padding: 25px;
    border-radius: 8px;
    border: 1px solid #eee;
    text-align: center;
}
.stat-card h3 {
    margin: 0;
    color: #555;
    font-size: 18px;
}
.stat-card p {
    font-size: 36px;
    font-weight: 700;
    color: #007bff;
    margin: 10px 0 0;
}
.chart-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 30px;
    min-height: 400px;
}