/* --- Reset & base --- */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    background: #f5f6fa;
    color: #333;
}

/* --- Sidebar --- */
.sidebar {
    width: 220px;
    background: #2f3640;
    color: #fff;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    display: flex;
    flex-direction: column;
}

.sidebar h2 {
    text-align: center;
    margin: 20px 0;
    font-size: 18px;
    letter-spacing: 1px;
}

.sidebar a {
    color: #fff;
    padding: 12px 20px;
    text-decoration: none;
    display: block;
    transition: 0.3s;
}

.sidebar a:hover {
    background: #353b48;
}

/* --- Main Content --- */
.main {
    margin-left: 220px;
    padding: 30px;
}

/* --- Form --- */
form {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    margin-bottom: 30px;
}

form input[type="text"],
form input[type="file"],
form input[type="date"],
form select,
form textarea {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    margin-bottom: 15px;
    border-radius: 5px;
    border: 1px solid #ccc;
    font-size: 14px;
}

form button {
    background: #00a8ff;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: 0.3s;
}

form button:hover {
    background: #0097e6;
}

/* --- QR Box --- */
.qr-box {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

/* --- Table --- */
table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

th, td {
    text-align: left;
    padding: 12px;
}

th {
    background: #f1f2f6;
    font-weight: 600;
}

tr:nth-child(even) {
    background: #f9f9f9;
}

.qr-small {
    width: 60px;
    height: 60px;
}

/* --- Print --- */
@media print {
    body * { visibility: hidden; }
    .qr-box, .qr-box * { visibility: visible; }
    .qr-box { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); }
}