* { box-sizing: border-box; }
body {
    font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    background: #f4f6f8;
    margin: 0;
    color: #222;
}
.navbar {
    background: #1f2937;
    color: #fff;
    padding: 14px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.navbar a {
    color: #fff;
    text-decoration: none;
    margin-left: 16px;
    font-size: 14px;
}
.navbar .brand { font-weight: 600; font-size: 16px; }
.container {
    max-width: 900px;
    margin: 32px auto;
    padding: 0 16px;
}
.card {
    background: #fff;
    border-radius: 8px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    margin-bottom: 24px;
}
h1, h2 { margin-top: 0; }
form label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 14px;
}
form input[type=text],
form input[type=email],
form input[type=password],
form input[type=number],
form input[type=file],
form select {
    width: 100%;
    padding: 9px 10px;
    margin-bottom: 16px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 14px;
}
button, .btn {
    background: #2563eb;
    color: #fff;
    border: none;
    padding: 10px 18px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    text-decoration: none;
    display: inline-block;
}
button:hover, .btn:hover { background: #1d4ed8; }
.btn-approve { background: #16a34a; }
.btn-approve:hover { background: #15803d; }
.btn-reject { background: #dc2626; }
.btn-reject:hover { background: #b91c1c; }
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
th, td {
    text-align: left;
    padding: 10px 8px;
    border-bottom: 1px solid #eee;
}
th { background: #f9fafb; }
.badge {
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: capitalize;
}
.badge-pending { background: #fef3c7; color: #92400e; }
.badge-approved { background: #dcfce7; color: #166534; }
.badge-rejected { background: #fee2e2; color: #991b1b; }
.alert {
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 14px;
}
.alert-error { background: #fee2e2; color: #991b1b; }
.alert-success { background: #dcfce7; color: #166534; }
.muted { color: #666; font-size: 13px; }
.auth-box { max-width: 400px; margin: 60px auto; }