* { box-sizing: border-box; font-family: -apple-system, "Malgun Gothic", "Apple SD Gothic Neo", sans-serif; }
body { margin: 0; background: #f4f5f7; color: #222; }
.screen { min-height: 100vh; }
.login-box { max-width: 340px; margin: 15vh auto; background: #fff; padding: 32px; border-radius: 12px; box-shadow: 0 2px 12px rgba(0,0,0,0.08); text-align: center; }
.login-box h1 { font-size: 18px; margin-bottom: 24px; color: #1a3c6e; }
.login-box input { width: 100%; padding: 12px; margin-bottom: 10px; border: 1px solid #ccc; border-radius: 8px; font-size: 15px; }
.login-box button { width: 100%; padding: 12px; background: #1a3c6e; color: #fff; border: none; border-radius: 8px; font-size: 15px; cursor: pointer; }
.error { color: #d33; font-size: 13px; min-height: 18px; margin-top: 8px; }

header { background: #1a3c6e; color: #fff; padding: 14px 20px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; }
header h1 { font-size: 16px; margin: 0; }
.user-info { display: flex; gap: 12px; align-items: center; font-size: 13px; }
.link { background: none; border: none; color: #cfe0ff; text-decoration: underline; cursor: pointer; font-size: 13px; padding: 0; }

nav { display: flex; gap: 4px; padding: 10px 16px 0; background: #fff; overflow-x: auto; border-bottom: 1px solid #ddd; }
nav button { padding: 10px 14px; border: none; background: none; cursor: pointer; font-size: 14px; border-bottom: 3px solid transparent; white-space: nowrap; color: #555; }
nav button.active { border-bottom-color: #1a3c6e; color: #1a3c6e; font-weight: bold; }

main { padding: 16px; max-width: 960px; margin: 0 auto; }
.card { background: #fff; border-radius: 10px; padding: 16px; margin-bottom: 14px; box-shadow: 0 1px 4px rgba(0,0,0,0.06); }
.card h3 { margin-top: 0; font-size: 15px; color: #1a3c6e; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { border: 1px solid #e2e2e2; padding: 6px 8px; text-align: left; }
th { background: #f0f2f5; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11px; color: #fff; }
.badge.draft { background: #999; }
.badge.pending_review { background: #e08b1c; }
.badge.pending_approve { background: #1c7ce0; }
.badge.approved { background: #2ba84a; }
.badge.rejected { background: #d33; }

form.stack { display: flex; flex-direction: column; gap: 8px; max-width: 480px; }
form.stack input, form.stack select, form.stack textarea { padding: 8px; border: 1px solid #ccc; border-radius: 6px; font-size: 14px; }
.row { display: flex; gap: 8px; }
.row > * { flex: 1; }
button { cursor: pointer; }
button.primary { background: #1a3c6e; color: #fff; border: none; padding: 8px 16px; border-radius: 6px; }
button.secondary { background: #eee; border: none; padding: 8px 16px; border-radius: 6px; }
button.danger { background: #d33; color: #fff; border: none; padding: 6px 12px; border-radius: 6px; }
button.small { font-size: 12px; padding: 4px 10px; }

.modal { position: fixed; inset: 0; background: rgba(0,0,0,0.4); display: flex; align-items: center; justify-content: center; z-index: 100; }
.modal-box { background: #fff; padding: 24px; border-radius: 10px; width: 320px; }
.modal-box input { width: 100%; padding: 10px; margin-bottom: 10px; border: 1px solid #ccc; border-radius: 6px; }
.modal-actions { display: flex; gap: 8px; margin-top: 10px; }

.item-table input { width: 100%; padding: 4px; border: 1px solid #ddd; }
.muted { color: #888; font-size: 12px; }
@media (max-width: 640px) {
  .row { flex-direction: column; }
  main { padding: 10px; }
}