/* Nosologia - Reusable Components */

/* Navigation Header */
.header {
  background-color: var(--color-card-bg);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

.logo-icon {
  width: 48px;
  height: 48px;
}

.logo:hover {
  color: var(--color-secondary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-link {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-base);
}

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

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

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  padding: var(--spacing-sm);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
  width: 40px;
  height: 40px;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary, #2d3748);
  border-radius: 2px;
  transition: all 0.2s ease;
}

/* Learn Dropdown (for non-home pages) */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  cursor: pointer;
}

.nav-dropdown-toggle svg {
  transition: transform 0.2s ease;
}

.nav-dropdown.open .nav-dropdown-toggle svg {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-sm);
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 1000;
  margin-top: var(--spacing-sm);
}

.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
}

.nav-dropdown-menu a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background 0.2s ease;
}

.nav-dropdown-menu a:hover {
  background: var(--color-bg);
  color: var(--color-primary);
}

/* Editor link - hidden by default, shown via JS when local */
.nav-link-editor {
  display: none;
}

.nav-link-editor.show {
  display: block;
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-card-bg, #ffffff);
    border-bottom: 1px solid var(--color-border, #e2e8f0);
    padding: var(--spacing-md);
    gap: 0;
    display: none;
    box-shadow: var(--shadow-md, 0 4px 6px rgba(0, 0, 0, 0.1));
    z-index: 1000;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-link {
    display: block;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--color-text-primary, #1a1a2e);
  }

  .nav-link:hover {
    background: var(--color-bg, #f5f5f5);
  }

  .nav-link.active {
    color: var(--color-primary, #1a365d);
  }

  .nav-dropdown-menu {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: var(--spacing-lg);
    margin-top: 0;
  }

  .header {
    position: relative;
  }
}

/* Cards */
.card {
  background-color: var(--color-card-bg);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-header {
  margin-bottom: var(--spacing-lg);
}

.card-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
}

.card-subtitle {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
}

.card-body {
  margin-bottom: var(--spacing-lg);
}

.card-footer {
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

/* Badge/Pill */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  line-height: 1;
}

.badge-primary {
  background-color: rgba(26, 54, 93, 0.1);
  color: var(--color-primary);
}

.badge-secondary {
  background-color: rgba(56, 178, 172, 0.1);
  color: var(--color-secondary);
}

.badge-success {
  background-color: rgba(72, 187, 120, 0.1);
  color: var(--color-success);
}

.badge-warning {
  background-color: rgba(237, 137, 54, 0.1);
  color: var(--color-warning);
}

.badge-danger {
  background-color: rgba(229, 62, 62, 0.1);
  color: var(--color-danger);
}

.badge-mild {
  background-color: rgba(56, 161, 105, 0.1);
  color: var(--color-mild);
}

.badge-moderate {
  background-color: rgba(214, 158, 46, 0.1);
  color: var(--color-moderate);
}

.badge-severe {
  background-color: rgba(221, 107, 32, 0.1);
  color: var(--color-severe);
}

.badge-lethal {
  background-color: rgba(229, 62, 62, 0.1);
  color: var(--color-lethal);
}

/* Chip (removable tag) */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 0.5rem 0.75rem;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  animation: popIn 0.2s ease-out;
}

.chip:hover {
  background-color: var(--color-border);
}

.chip-remove {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  background-color: var(--color-text-secondary);
  color: white;
  border-radius: 50%;
  cursor: pointer;
  font-size: 12px;
  line-height: 1;
  transition: background-color var(--transition-fast);
}

.chip-remove:hover {
  background-color: var(--color-danger);
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  padding: var(--spacing-lg);
  animation: fadeIn 0.2s ease-out;
}

.modal {
  background-color: var(--color-card-bg);
  border-radius: var(--radius-2xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: slideUp 0.3s ease-out;
  position: relative;
}

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

.modal-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin: 0;
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

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

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

.modal-footer {
  padding: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
}

/* Toast Notification */
.toast-container {
  position: fixed;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  pointer-events: none;
}

.toast {
  background-color: var(--color-card-bg);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md) var(--spacing-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  min-width: 300px;
  pointer-events: all;
  animation: slideInRight 0.3s ease-out;
  border-left: 4px solid var(--color-primary);
}

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

.toast.toast-error {
  border-left-color: var(--color-danger);
}

.toast.toast-warning {
  border-left-color: var(--color-warning);
}

.toast-icon {
  font-size: var(--font-size-xl);
}

.toast-message {
  flex: 1;
  font-size: var(--font-size-sm);
}

.toast-close {
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  color: var(--color-text-secondary);
  padding: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Floating Action Button */
.fab {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: white;
  border: none;
  font-size: 24px;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  z-index: 900;
}

.fab:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-xl);
}

.fab:active {
  transform: scale(0.95);
}

/* Severity Indicator Dot */
.severity-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-right: var(--spacing-sm);
}

.severity-dot.mild {
  background-color: var(--color-mild);
}

.severity-dot.moderate {
  background-color: var(--color-moderate);
}

.severity-dot.severe {
  background-color: var(--color-severe);
}

.severity-dot.lethal {
  background-color: var(--color-lethal);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-xl);
}

.empty-state-icon {
  font-size: 64px;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

.empty-state-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.empty-state-message {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* Skeleton Loader */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-border) 25%,
    var(--color-bg) 50%,
    var(--color-border) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

.skeleton-text {
  height: 1rem;
  margin-bottom: var(--spacing-sm);
}

.skeleton-title {
  height: 1.5rem;
  width: 60%;
  margin-bottom: var(--spacing-md);
}

.skeleton-card {
  height: 200px;
  border-radius: var(--radius-xl);
}

/* Search Bar */
.search-bar {
  position: relative;
  width: 100%;
}

.search-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 3rem;
  font-size: var(--font-size-base);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-secondary);
  font-size: 18px;
  pointer-events: none;
}

/* Autocomplete Dropdown */
.autocomplete-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-top: var(--spacing-xs);
  box-shadow: var(--shadow-lg);
  max-height: 200px;
  overflow-y: auto;
  z-index: var(--z-dropdown);
  animation: fadeIn 0.15s ease-out;
}

.autocomplete-item {
  padding: 0.75rem 1rem;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.autocomplete-item:hover,
.autocomplete-item.active {
  background-color: var(--color-bg);
}

.autocomplete-item-highlight {
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
}

/* Responsive */
@media (max-width: 768px) {
  .modal {
    max-width: 100%;
    margin: 0;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    max-height: 95vh;
  }

  .toast-container {
    left: var(--spacing-md);
    right: var(--spacing-md);
  }

  .toast {
    min-width: auto;
  }

  .nav-links {
    gap: var(--spacing-md);
  }

  .fab {
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
  }
}