/* ================================================
   MILESTONES PAGE STYLES
   Baby development milestone tracking interface
   ================================================ */

/* Hero Section */
.page-hero {
  padding: calc(70px + var(--space-2xl)) 0 var(--space-2xl);
  background: linear-gradient(135deg, 
    rgba(149, 225, 211, 0.05) 0%, 
    rgba(167, 139, 250, 0.05) 100%);
  position: relative;
  overflow: hidden;
}

/* Quick Actions */
.quick-actions {
  padding: var(--space-xl) 0;
  background: white;
  border-bottom: 1px solid var(--gray-200);
}

.action-buttons {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
}

.action-btn {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  background: white;
  color: var(--gray-700);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

.action-btn.primary {
  background: var(--accent-purple);
  color: white;
  border-color: var(--accent-purple);
}

.action-btn.secondary {
  background: var(--accent-mint);
  color: var(--gray-800);
  border-color: var(--accent-mint);
}

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

.action-btn.primary:hover {
  background: #8B5CF6;
  border-color: #8B5CF6;
}

.action-btn.secondary:hover {
  background: #7BCFB3;
  border-color: #7BCFB3;
}

/* Main Content */
.main-content {
  padding: var(--space-3xl) 0;
  background: var(--gray-50);
  min-height: 60vh;
}

/* Age Milestones Section */
.age-milestones-section {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-lg);
  margin-bottom: var(--space-2xl);
}

.age-selector {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
  padding: var(--space-lg);
  background: var(--gray-50);
  border-radius: var(--radius-lg);
}

.age-label {
  font-weight: 600;
  color: var(--gray-700);
  white-space: nowrap;
}

.age-select {
  padding: var(--space-md) var(--space-lg);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  background: white;
  color: var(--gray-800);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  min-width: 200px;
}

.age-select:focus {
  outline: none;
  border-color: var(--accent-purple);
  box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.1);
}

.milestone-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.milestone-category {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s ease;
}

.milestone-category:hover {
  border-color: var(--accent-purple);
  box-shadow: var(--shadow-md);
}

.category-header {
  padding: var(--space-lg);
  background: linear-gradient(135deg, var(--accent-purple) 0%, #A78BFA 100%);
  color: white;
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.category-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.category-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0;
}

.milestone-list {
  padding: var(--space-lg);
  max-height: 400px;
  overflow-y: auto;
}

.milestone-item {
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  background: var(--gray-50);
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
}

.milestone-item:hover {
  background: white;
  border-color: var(--accent-purple);
  box-shadow: var(--shadow-sm);
}

.milestone-item:last-child {
  margin-bottom: 0;
}

.milestone-title {
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: var(--space-xs);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.milestone-status {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.milestone-status.pending {
  background: var(--gray-300);
}

.milestone-status.achieved {
  background: var(--success-500);
}

.milestone-status.overdue {
  background: var(--error-500);
}

.milestone-description {
  font-size: 0.875rem;
  color: var(--gray-600);
  line-height: 1.4;
  margin-bottom: var(--space-sm);
}

.milestone-age {
  font-size: 0.75rem;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

.add-milestone-btn {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 50%;
  background: var(--accent-purple);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: bold;
  opacity: 0;
  transition: all 0.3s ease;
}

.milestone-item:hover .add-milestone-btn {
  opacity: 1;
}

.add-milestone-btn:hover {
  background: #8B5CF6;
  transform: scale(1.1);
}

/* Tracked Milestones Section */
.tracked-milestones-section {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-lg);
}

.milestone-timeline {
  position: relative;
}

.milestone-timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-purple), var(--accent-mint));
}

.tracked-milestone {
  position: relative;
  padding-left: 60px;
  margin-bottom: var(--space-xl);
}

.milestone-marker {
  position: absolute;
  left: 8px;
  top: 8px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 4px solid white;
  box-shadow: var(--shadow-md);
  background: var(--success-500);
}

.milestone-content {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.milestone-content:hover {
  border-color: var(--accent-purple);
  box-shadow: var(--shadow-md);
}

.tracked-milestone-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-md);
}

.tracked-milestone-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-800);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.milestone-category-badge {
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.milestone-category-badge.physical {
  background: rgba(78, 205, 196, 0.1);
  color: #26A69A;
}

.milestone-category-badge.cognitive {
  background: rgba(167, 139, 250, 0.1);
  color: #8B5CF6;
}

.milestone-category-badge.language {
  background: rgba(255, 107, 157, 0.1);
  color: #E91E63;
}

.milestone-category-badge.social {
  background: rgba(251, 146, 60, 0.1);
  color: #F97316;
}

.milestone-date {
  font-size: 0.875rem;
  color: var(--gray-500);
  text-align: right;
}

.tracked-milestone-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.tracked-detail-item {
  text-align: center;
}

.tracked-detail-label {
  display: block;
  font-size: 0.75rem;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-xs);
}

.tracked-detail-value {
  display: block;
  font-weight: 600;
  color: var(--gray-700);
}

.milestone-photos {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  flex-wrap: wrap;
}

.milestone-photo {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  object-fit: cover;
  cursor: pointer;
  transition: all 0.3s ease;
}

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

/* Modal Styles */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  padding: var(--space-lg);
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-content {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  z-index: 1;
}

.modal-content.large {
  max-width: 900px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-xl);
  border-bottom: 1px solid var(--gray-200);
}

.modal-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--gray-800);
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--gray-400);
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}

.modal-close:hover {
  background: var(--gray-100);
  color: var(--gray-600);
}

.modal-body {
  padding: var(--space-xl);
}

.modal-footer {
  display: flex;
  gap: var(--space-lg);
  justify-content: flex-end;
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--gray-200);
}

/* Photo Upload */
.photo-upload {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.photo-input {
  display: none;
}

.photo-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-xl);
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius-lg);
  background: var(--gray-50);
  cursor: pointer;
  transition: all 0.3s ease;
}

.photo-label:hover {
  border-color: var(--accent-purple);
  background: var(--primary-50);
}

.photo-label svg {
  color: var(--gray-400);
}

.photo-label span {
  font-size: 0.875rem;
  color: var(--gray-600);
  font-weight: 500;
}

.photo-preview {
  position: relative;
  display: inline-block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.photo-preview img {
  width: 200px;
  height: 150px;
  object-fit: cover;
}

.remove-photo {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: bold;
  transition: all 0.3s ease;
}

.remove-photo:hover {
  background: rgba(0, 0, 0, 0.9);
  transform: scale(1.1);
}

/* Guide Content */
.guide-content {
  max-height: 70vh;
  overflow-y: auto;
}

.guide-intro {
  background: var(--primary-50);
  border: 1px solid var(--primary-200);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.milestone-guide-timeline {
  position: relative;
}

.guide-timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-purple), var(--accent-mint));
}

.guide-age-section {
  position: relative;
  margin-bottom: var(--space-2xl);
  padding-left: 60px;
}

.guide-marker {
  position: absolute;
  left: 8px;
  top: 8px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 4px solid white;
  box-shadow: var(--shadow-md);
  background: var(--accent-purple);
}

.guide-age-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: var(--space-lg);
}

.guide-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
}

.guide-category {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

.guide-category-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.guide-category-title {
  font-weight: 600;
  color: var(--gray-800);
  font-size: 1rem;
  margin: 0;
}

.guide-milestones {
  list-style: none;
}

.guide-milestones li {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--gray-100);
  font-size: 0.875rem;
  color: var(--gray-600);
  line-height: 1.4;
}

.guide-milestones li:last-child {
  border-bottom: none;
}

/* Empty States */
.empty-state {
  text-align: center;
  padding: var(--space-3xl);
  color: var(--gray-500);
}

.empty-icon {
  margin-bottom: var(--space-lg);
  opacity: 0.5;
}

.empty-state h3 {
  color: var(--gray-700);
  margin-bottom: var(--space-md);
}

.empty-state p {
  margin-bottom: var(--space-lg);
}

/* Animation Classes */
.slide-in {
  animation: slideInUp 0.4s ease-out;
}

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

.fade-in {
  animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .action-buttons {
    flex-direction: column;
    align-items: center;
  }

  .action-btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }

  .age-selector {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .age-select {
    min-width: auto;
  }

  .milestone-categories {
    grid-template-columns: 1fr;
  }

  .tracked-milestone {
    padding-left: 50px;
  }

  .milestone-timeline::before {
    left: 15px;
  }

  .milestone-marker {
    left: 3px;
    width: 20px;
    height: 20px;
  }

  .tracked-milestone-details {
    grid-template-columns: 1fr;
  }

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

  .guide-age-section {
    padding-left: 50px;
  }

  .guide-timeline::before {
    left: 15px;
  }

  .guide-categories {
    grid-template-columns: 1fr;
  }

  .modal {
    padding: var(--space-md);
  }

  .modal-footer {
    flex-direction: column;
  }

  .photo-label {
    padding: var(--space-lg);
  }

  .photo-preview img {
    width: 150px;
    height: 100px;
  }
}

@media (max-width: 480px) {
  .page-hero {
    padding: calc(70px + var(--space-lg)) 0 var(--space-lg);
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-lg);
    text-align: center;
  }

  .stat-number {
    font-size: 2rem;
  }

  .tracked-milestone-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .milestone-date {
    text-align: left;
  }

  .guide-age-section {
    padding-left: 40px;
  }

  .guide-timeline::before {
    left: 10px;
  }

  .milestone-photos {
    gap: var(--space-xs);
  }

  .milestone-photo {
    width: 60px;
    height: 60px;
  }
}

/* Loading States */
.skeleton {
  background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Print Styles */
@media print {
  .navbar,
  .quick-actions,
  .modal {
    display: none !important;
  }

  .main-content {
    padding: 0;
  }

  .age-milestones-section,
  .tracked-milestones-section {
    box-shadow: none;
    border: 1px solid var(--gray-300);
  }

  .milestone-category:hover,
  .milestone-content:hover {
    box-shadow: none;
  }
}