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

/* Root Variables */
:root {
  --primary-color: #28a745;
  --primary-dark: #218838;
  --primary-light: #34ce57;
  --secondary-color: #28a745;
  --secondary-dark: #218838;
  --accent-color: #28a745;
  --text-primary: #333;
  --text-secondary: #555;
  --text-light: #777;
  --bg-primary: #fff;
  --bg-secondary: #f9f9f9;
  --bg-tertiary: #f8f8f8;
  --border-color: #ddd;
  --border-light: #f1f1f1;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --transition: all 0.2s ease-in-out;
}

/* General Styles */
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Typography */
h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin: 2rem 0;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 1.5rem 0 1rem 0;
}

.total_price {
  text-align: right;
  margin-right: 5rem;
}

/* Logo */
.logo {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 120px;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.logo:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

/* Form Styles */
form {
  max-width: 900px;
  margin: 2rem auto;
  padding: 2rem;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
}

/* Input Groups */
.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 1rem;
  background-color: var(--bg-primary);
  transition: var(--transition);
  font-family: inherit;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
  transform: translateY(-1px);
}

textarea {
  resize: vertical;
  min-height: 100px;
}

/* Table Styles */
.table-container {
  overflow-x: auto;
  margin: 2rem 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  background: var(--bg-primary);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-primary);
}

tr:has(th) {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
}

th {
  background: transparent;
  color: white;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.875rem;
  padding: 1rem;
  text-align: left;
  border: none;
}

td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.875rem;
}

tr:last-child td {
  border-bottom: none;
}

tbody tr {
  transition: var(--transition);
}

tbody tr:hover {
  background-color: var(--bg-secondary);
  transform: translateY(-1px);
}

/* Button Styles */
button,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  background: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  min-height: 48px;
  box-shadow: var(--shadow-sm);
  margin: 0 auto;
}

button:hover,
.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, var(--secondary-dark), var(--secondary-color));
}

button:active,
.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.btn-full {
  width: 100%;
  margin: 1rem auto 0 auto;
  display: block;
}

/* Price Display */
.price-display {
  background: linear-gradient(135deg, var(--accent-color), #f97316);
  color: white;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  text-align: center;
  margin: 2rem 0;
  box-shadow: var(--shadow-md);
}

.price-display h2 {
  color: white;
  margin: 0;
  font-size: 1.75rem;
}

/* Success Message */
.success-container {
  max-width: 600px;
  margin: 4rem auto;
  padding: 3rem 2rem;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  text-align: center;
  border: 3px solid var(--secondary-color);
}

.success-container h1 {
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.success-container p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

/* Admin Panel Styles */
.admin-header {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  color: white;
  padding: 2rem;
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
  text-align: center;
}

.admin-actions {
  display: flex;
  gap: 1rem;
  margin: 1rem 0;
  flex-wrap: wrap;
}

.orders-table th,
.orders-table td {
  text-align: center;
  padding: 0.75rem;
}

/* Cards */
.card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 1.5rem;
  margin: 1rem 0;
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Alert Messages */
.alert {
  padding: 1rem 1.5rem;
  margin: 1rem auto;
  max-width: 900px;
  border-radius: var(--radius-md);
  font-weight: 500;
  box-shadow: var(--shadow-sm);
}

.alert-danger {
  background-color: #fee2e2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

.alert-success {
  background-color: #dcfce7;
  border: 1px solid #bbf7d0;
  color: #166534;
}

.alert-info {
  background-color: #dbeafe;
  border: 1px solid #bfdbfe;
  color: #1e40af;
}

.alert p {
  margin: 0;
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--border-color);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .logo {
    position: static;
    display: block;
    margin: 1rem auto;
    width: 100px;
  }

  form {
    margin: 1rem;
    padding: 1.5rem;
  }

  h1 {
    font-size: 2rem;
    margin: 1rem 0;
  }

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

  .btn {
    padding: 1rem;
    font-size: 0.875rem;
  }

  table {
    font-size: 0.75rem;
  }

  th,
  td {
    padding: 0.5rem;
  }

  .container {
    padding: 0 0.5rem;
  }

  .table-container {
    margin: 1rem 0;
  }
}

@media (max-width: 480px) {
  .logo {
    width: 80px;
  }

  form {
    padding: 1rem;
  }

  .price-display {
    padding: 1rem;
  }

  .price-display h2 {
    font-size: 1.25rem;
  }

  .success-container {
    margin: 2rem auto;
    padding: 2rem 1rem;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --text-primary: #000000;
    --text-secondary: #000000;
    --text-light: #263c61;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #ffffff;
    --border-color: #33363b;
    --border-light: #858b94;
  }

  body {
    background-color: var(--bg-secondary);
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus indicators for keyboard navigation */
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}