/* ==========================================
   SHIPPING FORM - CSS STYLES
   Modern, RTL-friendly, Mobile-first
   ========================================== */

/* CSS Custom Properties (Design Tokens) */
:root {
  /* Colors */
  --color-primary: #3B82F6;
  --color-primary-hover: #2563EB;
  --color-primary-light: #DBEAFE;
  --color-secondary: #64748B;
  --color-success: #10B981;
  --color-success-light: #D1FAE5;
  --color-error: #EF4444;
  --color-error-light: #FEE2E2;
  --color-warning: #F59E0B;

  /* Neutrals */
  --color-white: #FFFFFF;
  --color-gray-50: #F8FAFC;
  --color-gray-100: #F1F5F9;
  --color-gray-200: #E2E8F0;
  --color-gray-300: #CBD5E1;
  --color-gray-400: #94A3B8;
  --color-gray-500: #64748B;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1E293B;
  --color-gray-900: #0F172A;

  /* Typography */
  --font-family: 'IBM Plex Sans Arabic', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;

  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* Reset & Base */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-gray-800);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
}

/* Container */
.container {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--spacing-4);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.header {
  text-align: center;
  padding: var(--spacing-8) 0 var(--spacing-6);
}

.header-content {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
  padding: var(--spacing-6);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-3);
}

.logo-icon {
  width: 40px;
  height: 40px;
  color: var(--color-white);
}

.logo-text {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-white);
}

.header-subtitle {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-lg);
}

/* Main */
.main {
  flex: 1;
}

/* Form */
.shipping-form {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

/* Form Section */
.form-section {
  padding: var(--spacing-6);
  border-bottom: 1px solid var(--color-gray-200);
}

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

.section-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-gray-800);
  margin-bottom: var(--spacing-5);
}

.section-icon {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

.optional-badge {
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-gray-500);
  background: var(--color-gray-100);
  padding: var(--spacing-1) var(--spacing-2);
  border-radius: var(--radius-full);
  margin-right: auto;
}

/* Form Group */
.form-group {
  margin-bottom: var(--spacing-5);
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4);
}

@media (max-width: 480px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* Labels */
.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-2);
}

.required {
  color: var(--color-error);
}

/* Inputs */
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  font-size: var(--font-size-base);
  font-family: inherit;
  color: var(--color-gray-800);
  background: var(--color-white);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

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

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-400);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px var(--color-error-light);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

/* Phone Input */
.phone-input-wrapper {
  display: flex;
  align-items: stretch;
  direction: ltr;
}

.phone-prefix {
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-4);
  background: var(--color-gray-100);
  border: 2px solid var(--color-gray-200);
  border-left: none;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
  font-weight: 600;
  color: var(--color-gray-600);
}

.phone-input {
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0 !important;
  direction: ltr;
  text-align: left;
}

/* Select */
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%2364748B'%3E%3Cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z' clip-rule='evenodd'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: left var(--spacing-4) center;
  background-size: 20px;
  padding-left: var(--spacing-10);
  cursor: pointer;
}

.form-select:disabled {
  background-color: var(--color-gray-100);
  cursor: not-allowed;
}

/* Form Hints & Errors */
.form-hint {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  margin-top: var(--spacing-1);
}

.form-error {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-error);
  margin-top: var(--spacing-1);
  min-height: 1.2em;
}

.char-count {
  text-align: left;
  direction: ltr;
}

/* Searchable Select */
.searchable-select {
  position: relative;
}

.searchable-select .form-input {
  cursor: text;
}

.searchable-select .form-input:disabled {
  background-color: var(--color-gray-100);
  cursor: not-allowed;
}

.select-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  max-height: 250px;
  overflow-y: auto;
  background: var(--color-white);
  border: 2px solid var(--color-primary);
  border-top: none;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: 100;
}

.select-option {
  padding: var(--spacing-3) var(--spacing-4);
  cursor: pointer;
  transition: background var(--transition-fast);
  border-bottom: 1px solid var(--color-gray-100);
}

.select-option:last-child {
  border-bottom: none;
}

.select-option:hover,
.select-option.highlighted {
  background: var(--color-primary-light);
}

.select-option.selected {
  background: var(--color-primary);
  color: var(--color-white);
}

.select-no-results {
  padding: var(--spacing-4);
  text-align: center;
  color: var(--color-gray-500);
  font-size: var(--font-size-sm);
}

/* Package Sizes */
.package-sizes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-3);
}

.package-option {
  cursor: pointer;
}

.package-option input {
  display: none;
}

.package-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-1);
  padding: var(--spacing-4);
  background: var(--color-gray-50);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.package-option input:checked+.package-card {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
}

.package-icon {
  font-size: 1.5rem;
}

.package-name {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-700);
}

/* Saved Addresses */
.saved-addresses {
  margin-bottom: var(--spacing-5);
  padding: var(--spacing-4);
  background: var(--color-primary-light);
  border-radius: var(--radius-lg);
}

.addresses-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-3);
}

.address-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-3);
  background: var(--color-white);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.address-card:hover,
.address-card.selected {
  border-color: var(--color-primary);
}

.address-card input {
  display: none;
}

.address-card.selected {
  background: var(--color-primary-light);
}

.address-details {
  flex: 1;
}

.address-city {
  font-weight: 600;
  color: var(--color-gray-800);
}

.address-text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-5);
  font-size: var(--font-size-base);
  font-weight: 600;
  font-family: inherit;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:disabled {
  background: var(--color-gray-300);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  color: var(--color-gray-700);
  background: var(--color-gray-100);
}

.btn-secondary:hover {
  background: var(--color-gray-200);
}

.btn-outline {
  color: var(--color-primary);
  background: transparent;
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary-light);
}

.btn-sm {
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--spacing-4) var(--spacing-6);
  font-size: var(--font-size-lg);
}

.btn-full {
  width: 100%;
}

/* Form Actions */
.form-actions {
  padding: var(--spacing-6);
  background: var(--color-gray-50);
}

/* Loading Spinner */
.spinner {
  width: 20px;
  height: 20px;
  animation: spin 0.8s linear infinite;
}

.spinner-circle {
  stroke-dasharray: 62.832;
  stroke-dashoffset: 25;
}

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

.btn-loading {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
}

/* Success Message */
.success-message {
  text-align: center;
  padding: var(--spacing-10) var(--spacing-6);
}

.success-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-5);
  color: var(--color-success);
}

.success-message h2 {
  font-size: var(--font-size-2xl);
  color: var(--color-gray-800);
  margin-bottom: var(--spacing-6);
}

.tracking-info {
  background: var(--color-success-light);
  padding: var(--spacing-5);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-5);
}

.tracking-info p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-2);
}

.tracking-info code {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-success);
  background: none;
  direction: ltr;
}

.qr-link {
  margin-bottom: var(--spacing-5);
}

/* Toast */
.toast {
  position: fixed;
  bottom: var(--spacing-6);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-4) var(--spacing-5);
  background: var(--color-gray-800);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  z-index: 1000;
  animation: slideUp 0.3s ease;
}

.toast-error {
  background: var(--color-error);
}

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

.toast-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.toast-close {
  background: none;
  border: none;
  color: inherit;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  margin-right: calc(var(--spacing-2) * -1);
  opacity: 0.7;
}

.toast-close:hover {
  opacity: 1;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* Footer */
.footer {
  text-align: center;
  padding: var(--spacing-6) 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-sm);
}

/* Utility Classes */
.hidden {
  display: none !important;
}

/* Responsive */
@media (max-width: 480px) {
  .container {
    padding: var(--spacing-2);
  }

  .header {
    padding: var(--spacing-4) 0;
  }

  .header-content {
    padding: var(--spacing-4);
  }

  .form-section {
    padding: var(--spacing-4);
  }

  .form-actions {
    padding: var(--spacing-4);
  }

  .package-sizes {
    grid-template-columns: 1fr;
  }

  .package-card {
    flex-direction: row;
    justify-content: center;
    padding: var(--spacing-3);
  }
}

/* Print Styles */
@media print {
  body {
    background: white;
  }

  .header,
  .footer,
  .form-actions {
    display: none;
  }
}