* { box-sizing: border-box; }
body {
    font-family: -apple-system, "Segoe UI", "Sarabun", sans-serif;
    background: #f4f5f7;
    margin: 0;
    padding: 16px;
    color: #222;
}
h1 { font-size: 20px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 20px 0 8px; }
.card {
    background: #fff;
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
label { display: block; font-size: 13px; color: #555; margin: 10px 0 4px; }
input, select, textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 15px;
}
button {
    background: #06c755; /* LINE green */
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 15px;
    font-weight: 600;
    width: 100%;
    margin-top: 12px;
    cursor: pointer;
}
button.secondary { background: #6b7280; }
button.danger { background: #dc2626; }
button:disabled { background: #ccc; }
.menu-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.menu-item {
    background: #fff;
    border-radius: 12px;
    padding: 20px 12px;
    text-align: center;
    text-decoration: none;
    color: #222;
    font-weight: 600;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.msg { padding: 10px; border-radius: 8px; margin-top: 10px; font-size: 14px; }
.msg.error { background: #fee2e2; color: #991b1b; }
.msg.success { background: #dcfce7; color: #166534; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.pending { background: #fef9c3; color: #854d0e; }
.badge.approved { background: #dcfce7; color: #166534; }
.badge.rejected { background: #fee2e2; color: #991b1b; }
.badge.cancelled { background: #e5e7eb; color: #4b5563; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 6px 4px; border-bottom: 1px solid #eee; }
.back-link { display: inline-block; margin-bottom: 12px; color: #06c755; text-decoration: none; font-weight: 600; }
.row-flex { display: flex; gap: 8px; }
.row-flex > * { flex: 1; }