* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f5f7fb;
  color: #111;
}

.admin-page {
  min-height: 100vh;
}

.admin-header {
  background: linear-gradient(135deg, #111827, #1f2937);
  color: white;
  text-align: center;
  padding: 30px 20px;
}

.admin-header h1 {
  margin: 0 0 8px;
  font-size: 32px;
}

.admin-header p {
  margin: 0;
  opacity: 0.9;
}

.admin-container {
  max-width: 1100px;
  margin: 30px auto;
  padding: 0 16px 40px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.summary-card {
  background: white;
  border-radius: 16px;
  padding: 22px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.summary-card h3 {
  margin: 0 0 8px;
  font-size: 16px;
  color: #374151;
}

.summary-card p {
  margin: 0;
  font-size: 28px;
  font-weight: 700;
  color: #111827;
}

.admin-topbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.admin-topbar input,
.admin-topbar select {
  flex: 1;
  min-width: 200px;
  padding: 12px 14px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  font-size: 15px;
  outline: none;
  background: white;
}

.admin-topbar button {
  padding: 12px 18px;
  border: none;
  border-radius: 10px;
  background: #111827;
  color: white;
  font-size: 14px;
  cursor: pointer;
  transition: 0.2s ease;
}

.admin-topbar button:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}

.orders-container {
  display: grid;
  gap: 18px;
}

.order-card {
  background: white;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.order-card h3 {
  margin-top: 0;
  margin-bottom: 14px;
  color: #111827;
}

.order-card p {
  margin: 8px 0;
  line-height: 1.5;
}

.order-items {
  margin: 12px 0;
  padding: 12px 14px;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
}

.order-items p {
  margin: 0 0 8px;
  font-weight: 700;
}

.order-items ul {
  margin: 0;
  padding-left: 18px;
}

.order-items li {
  margin: 6px 0;
}

.status-badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 13px;
}

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

.status-confirmed {
  background: #dbeafe;
  color: #1d4ed8;
}

.status-shipped {
  background: #e0e7ff;
  color: #4338ca;
}

.status-delivered {
  background: #dcfce7;
  color: #166534;
}

.status-cancelled {
  background: #fee2e2;
  color: #b91c1c;
}

.order-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.order-actions select {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #d1d5db;
  min-width: 180px;
  background: white;
}

.order-actions button {
  padding: 10px 16px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  background: #2563eb;
  color: white;
  transition: 0.2s ease;
}

.order-actions button:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}

.order-actions button:last-child {
  background: #dc2626;
}

@media (max-width: 900px) {
  .summary-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .admin-header h1 {
    font-size: 24px;
  }

  .admin-container {
    margin: 20px auto;
  }

  .order-card {
    padding: 16px;
  }

  .admin-topbar {
    flex-direction: column;
  }

  .admin-topbar input,
  .admin-topbar select,
  .admin-topbar button,
  .order-actions select,
  .order-actions button {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .summary-grid {
    grid-template-columns: 1fr;
  }
}