* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: Arial, Helvetica, sans-serif;
    background: #eef2f5;
    color: #222;
}
header {
    background: #1b3a6b;
    color: #fff;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    border-bottom: 4px solid #d4a017;
}
header img { height: 56px; }
header h1 { font-size: 20px; }
header p { font-size: 13px; color: #d9e2f1; }
nav {
    background: #0f2749;
}
nav ul { list-style: none; display: flex; flex-wrap: wrap; }
nav a {
    display: block;
    color: #fff;
    text-decoration: none;
    padding: 10px 16px;
    font-size: 14px;
}
nav a:hover { background: #d4a017; color: #1b3a6b; }
.container {
    max-width: 850px;
    margin: 30px auto;
    background: #fff;
    border: 1px solid #ccc;
    border-radius: 4px;
    padding: 24px 30px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.notice {
    background: #fff8e1;
    border-left: 4px solid #d4a017;
    padding: 10px 14px;
    font-size: 13px;
    margin-bottom: 18px;
}
.search-box { text-align: center; padding: 20px 0; }
.search-box label { font-weight: bold; display: block; margin-bottom: 8px; }
.search-box input[type="text"] {
    padding: 10px;
    width: 280px;
    border: 1px solid #aaa;
    border-radius: 3px;
    font-size: 15px;
}
.search-box button {
    padding: 10px 22px;
    background: #1b3a6b;
    color: #fff;
    border: none;
    border-radius: 3px;
    font-size: 15px;
    cursor: pointer;
    margin-left: 8px;
}
.search-box button:hover { background: #d4a017; color: #1b3a6b; }
table.result-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 16px;
}
table.result-table th, table.result-table td {
    border: 1px solid #ccc;
    padding: 8px 10px;
    font-size: 14px;
    text-align: left;
}
table.result-table th { background: #1b3a6b; color: #fff; }
.status-pass { color: #0a7d27; font-weight: bold; }
.status-fail { color: #b00020; font-weight: bold; }
.status-withheld { color: #b36b00; font-weight: bold; }
.error-box {
    background: #fde8e8;
    border-left: 4px solid #b00020;
    padding: 12px;
    color: #b00020;
    margin-top: 16px;
}
footer {
    text-align: center;
    font-size: 12px;
    color: #555;
    padding: 20px;
}
.admin-form input, .admin-form select {
    width: 100%;
    padding: 8px;
    margin: 6px 0 14px;
    border: 1px solid #aaa;
    border-radius: 3px;
}
.admin-form label { font-weight: bold; font-size: 13px; }
.btn {
    padding: 9px 20px;
    background: #1b3a6b;
    color: #fff;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}
.btn:hover { background: #d4a017; color: #1b3a6b; }
.msg-success { background: #e6f7e9; border-left: 4px solid #0a7d27; padding: 10px; margin-bottom: 14px; }
.msg-error { background: #fde8e8; border-left: 4px solid #b00020; padding: 10px; margin-bottom: 14px; }