:root {
  --primary-blue: #0066CC;
  --dark-blue: #004C99;
  --light-blue: #E6F3FF;
  --white: #ffffff;
  --gray: #f5f5f5;
  --text-dark: #333333;
  --text-light: #666666;
  --border-color: #e0e0e0;
  --success-color: #28a745;
  --danger-color: #dc3545;
  --warning-color: #ffc107;
  --info-color: #17a2b8;
}

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

body {
  font-family: 'Poppins', sans-serif;
  background: var(--gray);
  color: var(--text-dark);
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: inherit;
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--primary-blue);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--dark-blue);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 102, 204, 0.3);
}

.btn-secondary {
  background: var(--white);
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
  background: var(--light-blue);
}

.btn-success {
  background: var(--success-color);
  color: var(--white);
}

.btn-success:hover {
  background: #218838;
}

.btn-danger {
  background: var(--danger-color);
  color: var(--white);
}

.btn-danger:hover {
  background: #c82333;
}

.btn-small {
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-dark);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.3s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: 0.85rem;
  font-weight: 500;
}

.status-pending {
  background: #fff3cd;
  color: #856404;
}

.status-processing {
  background: #cce5ff;
  color: #004085;
}

.status-shipped {
  background: #d4edda;
  color: #155724;
}

.status-delivered {
  background: #d1ecf1;
  color: #0c5460;
}

.status-cancelled {
  background: #f8d7da;
  color: #721c24;
}

.card {
  background: var(--white);
  border-radius: 15px;
  padding: 2rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.section {
  padding: 4rem 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 3rem;
}

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

.text-primary {
  color: var(--primary-blue);
}

.text-success {
  color: var(--success-color);
}

.text-danger {
  color: var(--danger-color);
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

.d-flex {
  display: flex;
}

.d-grid {
  display: grid;
}

.justify-between {
  justify-content: space-between;
}

.justify-center {
  justify-content: center;
}

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

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }

@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }

  .section {
    padding: 2rem 0;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
  }
}