* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, sans-serif;
  background: #f5f6f8;
  color: #0f172a;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

.topbar {
  background: #111827;
  color: #fff;
  padding: 16px 0;
}

.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.session-info {
  font-size: 14px;
  opacity: 0.8;
}

.session-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-logout {
  margin: 0;
  padding: 6px 12px;
  font-size: 13px;
  background: #ef4444;
  border: none;
  color: #fff;
  border-radius: 6px;
  cursor: pointer;
}

.btn-logout.hidden {
  display: none;
}

.card {
  background: #fff;
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 24px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.06);
}

.card.hidden {
  display: none;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

h2 {
  font-size: 18px;
}

h4 {
  font-size: 15px;
  margin-bottom: 12px;
  color: #475569;
}

label {
  display: block;
  margin: 12px 0 6px;
  font-size: 14px;
  color: #334155;
}

input, select {
  width: 100%;
  padding: 10px;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  font-size: 14px;
  background: #fff;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px 18px;
}

button {
  margin-top: 16px;
  background: #2563eb;
  color: #fff;
  border: none;
  padding: 10px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
}

.btn-secondary {
  background: linear-gradient(135deg, #10b981 0%, #22c55e 100%);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
  border: 1px solid rgba(15, 118, 110, 0.2);
}

.btn-secondary:hover {
  filter: brightness(1.05);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.3);
}

.btn-small {
  margin: 0;
  padding: 6px 12px;
  font-size: 13px;
}

.link-btn {
  text-decoration: none;
  color: #fff;
  display: inline-block;
  margin-top: 0;
}

/* Navigation styles moved to navigation.css */

.nav-links {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th, td {
  padding: 10px 12px;
  border-bottom: 1px solid #e2e8f0;
  text-align: left;
}

th {
  background: #f8fafc;
  font-weight: 600;
}

.muted {
  color: #94a3b8;
  text-align: center;
}

.text-center {
  text-align: center;
}

.action-btn {
  background: #0ea5e9;
  margin: 0;
  padding: 6px 10px;
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.6);
  z-index: 1000;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: #fff;
  border-radius: 10px;
  padding: 20px;
  width: 92%;
  max-width: 900px;
  max-height: 90vh;
  overflow: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.btn-close {
  background: transparent;
  color: #0f172a;
  font-size: 24px;
  padding: 0 6px;
  margin: 0;
  cursor: pointer;
}

.form-section {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid #e2e8f0;
}

.form-section:last-child {
  border-bottom: none;
}

.item-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr auto;
  gap: 10px;
  align-items: end;
  margin-bottom: 10px;
  padding: 12px;
  background: #f8fafc;
  border-radius: 6px;
}

.item-row label {
  margin: 0 0 4px;
  font-size: 12px;
}

.item-row input, .item-row select {
  margin: 0;
  padding: 8px;
}

.btn-remove {
  background: #ef4444;
  padding: 8px 12px;
  margin: 0;
  font-size: 12px;
}

.total-display {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 18px;
  padding: 16px;
  background: #f1f5f9;
  border-radius: 8px;
}

.total-display span {
  font-size: 24px;
  font-weight: bold;
  color: #2563eb;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.btn-primary {
  background: #2563eb;
}

.status-badge {
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  display: inline-block;
}

.status-new {
  background: #dbeafe;
  color: #1e40af;
}

.status-done {
  background: #d1fae5;
  color: #065f46;
}

.status-cancel {
  background: #fee2e2;
  color: #991b1b;
}

.status-return {
  background: #fef3c7;
  color: #92400e;
}

.status-btn {
  font-size: 12px;
  padding: 5px 10px;
  margin-left: 4px;
}

.cancel-btn {
  background: #ef4444;
}

.return-btn {
  background: #f59e0b;
}

#order-detail-content {
  font-size: 14px;
  line-height: 1.8;
}

#order-detail-content .detail-section {
  margin-bottom: 16px;
}

#order-detail-content .detail-label {
  font-weight: 600;
  color: #475569;
}

#order-detail-content .items-list {
  background: #f8fafc;
  padding: 12px;
  border-radius: 6px;
}

@media (max-width: 768px) {
  .topbar .container {
    flex-direction: column;
    gap: 6px;
  }

  .item-row {
    grid-template-columns: 1fr;
  }

  table {
    min-width: 720px;
  }

  .card-actions {
    flex-direction: column;
  }

  .btn-large {
    width: 100%;
    justify-content: center;
  }
}