/* ============================================
   VARIABLES Y RESET
   ============================================ */

:root {
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --secondary: #6b7280;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --background: #f9fafb;
  --surface: #ffffff;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --border: #e5e7eb;
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
}

/* ============================================
   LOADING SCREEN
   ============================================ */

.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10000;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.loading-screen p {
  margin-top: 16px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* ============================================
   AUTH CONTAINER
   ============================================ */

.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.auth-page {
  display: none;
  width: 100%;
  max-width: 480px;
  animation: fadeIn 0.3s ease-in-out;
}

.auth-page.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.auth-card {
  background: var(--surface);
  border-radius: 16px;
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.auth-header {
  text-align: center;
  margin-bottom: 32px;
}

.auth-header h1 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.auth-header p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* ============================================
   FORMS
   ============================================ */

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
}

.form-control {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.9375rem;
  transition: all 0.2s;
  background: var(--surface);
  color: var(--text-primary);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-control:disabled {
  background: var(--background);
  cursor: not-allowed;
  opacity: 0.6;
}

.form-hint {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-top: -2px;
}

.form-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
}

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

.btn-secondary:hover {
  background: #4b5563;
}

.btn-danger {
  background: #dc3545;
  color: white;
}

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

.btn-success {
  background: #28a745;
  color: white;
}

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

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.875rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ============================================
   LINKS
   ============================================ */

.link-primary {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

.link-primary:hover {
  text-decoration: underline;
}

.link-secondary {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
}

.link-secondary:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

.auth-footer {
  text-align: center;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.auth-footer p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* ============================================
   DASHBOARD LAYOUT
   ============================================ */

.dashboard-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.dashboard-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  box-shadow: var(--shadow);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.user-name {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ============================================
   NAVIGATION
   ============================================ */

.dashboard-nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 8px;
  padding: 0 24px;
  overflow-x: auto;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 20px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  border-bottom: 3px solid transparent;
  transition: all 0.2s;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--background);
}

.nav-link.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.nav-link svg {
  flex-shrink: 0;
}

/* ============================================
   MAIN CONTENT
   ============================================ */

.dashboard-main {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 32px 24px;
}

.dashboard-section {
  display: none;
}

.dashboard-section.active {
  display: block;
}

.section-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.subsection-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

/* ============================================
   STATS GRID
   ============================================ */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.stat-icon {
  font-size: 2.5rem;
}

.stat-content {
  flex: 1;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.stat-value {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* ============================================
   ORDERS
   ============================================ */

.recent-orders {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}

.orders-filters {
  margin-bottom: 20px;
}

.orders-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.order-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  transition: all 0.2s;
  cursor: pointer;
}

.order-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

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

.order-number {
  font-weight: 600;
  color: var(--text-primary);
}

.order-date {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.order-status {
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.8125rem;
  font-weight: 500;
}

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

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

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

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

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

.order-items {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 8px;
}

.order-total {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1.125rem;
}

/* ============================================
   PROFILE
   ============================================ */

.profile-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
}

.profile-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ============================================
   ADDRESSES
   ============================================ */

.mb-3 {
  margin-bottom: 20px;
}

.addresses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.address-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  position: relative;
}

.address-card.default {
  border-color: var(--primary);
  border-width: 2px;
}

.address-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--primary);
  color: white;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
}

.address-name {
  font-weight: 600;
  margin-bottom: 8px;
}

.address-details {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.address-actions {
  display: flex;
  gap: 8px;
}

.btn-text {
  background: none;
  border: none;
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  padding: 4px 8px;
}

.btn-text:hover {
  text-decoration: underline;
}

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

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */

.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10001;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toast {
  background: var(--surface);
  border-radius: 8px;
  padding: 16px 20px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 300px;
  animation: slideInRight 0.3s ease-out;
}

@keyframes slideInRight {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast.success {
  border-left: 4px solid var(--success);
}

.toast.error {
  border-left: 4px solid var(--danger);
}

.toast.warning {
  border-left: 4px solid var(--warning);
}

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

.toast-content {
  flex: 1;
}

.toast-message {
  font-size: 0.9375rem;
  color: var(--text-primary);
  font-weight: 500;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================================
   EMPTY STATE
   ============================================ */

.empty-state {
  text-align: center;
  color: var(--text-secondary);
  padding: 40px 20px;
  font-size: 0.9375rem;
}

/* ============================================
   MODAL
   ============================================ */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 20px;
  animation: fadeIn 0.2s ease-in-out;
}

.modal-content {
  background: var(--surface);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 0.3s ease-in-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  padding: 24px 24px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: all 0.2s;
}

.modal-close:hover {
  background: var(--background);
  color: var(--text-primary);
}

.modal-body {
  padding: 24px;
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.9375rem;
  color: var(--text-primary);
}

.checkbox-label input[type='checkbox'] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--primary);
}

.checkbox-label span {
  user-select: none;
}

/* ============================================
   DANGER ZONE & DELETE MODAL
   ============================================ */

.danger-zone {
  border: 2px solid #dc3545;
  background: linear-gradient(135deg, #fff5f5 0%, #ffffff 100%);
}

.danger-zone .subsection-title {
  display: flex;
  align-items: center;
  gap: 8px;
}

.danger-zone .btn-danger {
  min-width: 200px;
}

/* Modal de eliminación mejorado */
.modal-overlay {
  backdrop-filter: blur(4px);
}

.delete-modal .modal-content {
  border: 2px solid #dc3545;
}

.delete-modal .modal-header {
  background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
  color: white;
  border-bottom: none;
}

.delete-modal .modal-header h3 {
  color: white;
  display: flex;
  align-items: center;
  gap: 10px;
}

.delete-modal .modal-close {
  color: white;
}

.delete-modal .modal-close:hover {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.warning-box {
  background: #fff3cd;
  border: 1px solid #ffc107;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 20px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.warning-box-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.warning-box-content {
  flex: 1;
}

.warning-box-title {
  font-weight: 600;
  color: #856404;
  margin-bottom: 8px;
  font-size: 1rem;
}

.warning-box ul {
  margin: 0;
  padding-left: 20px;
  color: #856404;
}

.warning-box ul li {
  margin-bottom: 6px;
  line-height: 1.5;
}

.danger-box {
  background: #f8d7da;
  border: 1px solid #dc3545;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 20px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.danger-box-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.danger-box-content {
  flex: 1;
}

.danger-box-title {
  font-weight: 600;
  color: #721c24;
  margin-bottom: 8px;
  font-size: 1rem;
}

.danger-box p {
  margin: 0;
  color: #721c24;
  line-height: 1.6;
}

.deletion-status-banner {
  background: linear-gradient(135deg, #fff3cd 0%, #ffe69c 100%);
  border: 2px solid #ffc107;
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px rgba(255, 193, 7, 0.2);
}

.deletion-status-banner h4 {
  color: #856404;
  margin: 0 0 12px 0;
  font-size: 1.125rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.deletion-status-banner p {
  color: #856404;
  margin: 0 0 16px 0;
  line-height: 1.6;
}

.deletion-status-banner .countdown {
  font-weight: 700;
  color: #dc3545;
  font-size: 1.125rem;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
  .auth-card {
    padding: 32px 24px;
  }

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

  .header-content {
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }

  .dashboard-main {
    padding: 24px 16px;
  }

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

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .addresses-grid {
    grid-template-columns: 1fr;
  }

  .toast-container {
    left: 20px;
    right: 20px;
  }

  .toast {
    min-width: auto;
  }

  .modal-content {
    max-width: 100%;
    max-height: 100vh;
    border-radius: 0;
  }

  .modal-header {
    padding: 20px 16px 12px;
  }

  .modal-body {
    padding: 16px;
  }

  .modal-actions {
    flex-direction: column-reverse;
  }

  .modal-actions .btn {
    width: 100%;
  }
}