/* Apple Design System - Component Styles */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-tight);
  border-radius: var(--border-radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal) var(--transition-ease);
  text-decoration: none;
  user-select: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn-icon {
  margin-right: var(--spacing-2);
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary {
  background-color: var(--color-neutral-100);
  color: var(--color-neutral-900);
}

.btn-secondary:hover {
  background-color: var(--color-neutral-200);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

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

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-outline:hover {
  background-color: rgba(0, 102, 255, 0.05);
  transform: translateY(-1px);
}

.btn-disabled,
.btn:disabled {
  background-color: var(--color-neutral-300);
  color: var(--color-neutral-500);
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Cards */
.card {
  background-color: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-normal) var(--transition-ease);
  animation: fadeIn 0.6s var(--transition-ease);
}

.card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-lg);
}

.card-header {
  padding: var(--spacing-4) var(--spacing-6);
  border-bottom: 1px solid var(--color-neutral-200);
}

.card-body {
  padding: var(--spacing-6);
}

.card-footer {
  padding: var(--spacing-4) var(--spacing-6);
  border-top: 1px solid var(--color-neutral-200);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-neutral-900);
  margin-bottom: var(--spacing-2);
  display: flex;
  align-items: center;
}

.card-title-icon {
  margin-right: var(--spacing-2);
  color: var(--color-primary);
}

.card-description {
  color: var(--color-neutral-700);
  font-size: var(--font-size-md);
  line-height: var(--line-height-relaxed);
}

/* Form Elements */
.form-group {
  margin-bottom: var(--spacing-4);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-2);
  font-weight: var(--font-weight-medium);
  color: var(--color-neutral-800);
}

.form-input {
  display: block;
  width: 100%;
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
  color: var(--color-neutral-900);
  background-color: white;
  border: 1px solid var(--color-neutral-300);
  border-radius: var(--border-radius-md);
  transition: border-color var(--transition-fast) var(--transition-ease),
              box-shadow var(--transition-fast) var(--transition-ease);
}

.form-input:focus {
  border-color: var(--color-primary);
  outline: 0;
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.15);
}

.form-input::placeholder {
  color: var(--color-neutral-500);
}

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

/* Navigation */
.nav {
  display: flex;
  flex-wrap: wrap;
  padding-left: 0;
  margin-bottom: 0;
  list-style: none;
}

.nav-link {
  display: block;
  padding: var(--spacing-2) var(--spacing-4);
  text-decoration: none;
  color: var(--color-neutral-700);
  transition: color var(--transition-fast) var(--transition-ease);
}

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

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

/* Alerts */
.alert {
  position: relative;
  padding: var(--spacing-4);
  margin-bottom: var(--spacing-4);
  border-radius: var(--border-radius-md);
  border-left: 4px solid transparent;
}

.alert-info {
  background-color: rgba(59, 130, 246, 0.1);
  border-left-color: var(--color-info);
}

.alert-success {
  background-color: rgba(16, 185, 129, 0.1);
  border-left-color: var(--color-success);
}

.alert-warning {
  background-color: rgba(245, 158, 11, 0.1);
  border-left-color: var(--color-warning);
}

.alert-error {
  background-color: rgba(239, 68, 68, 0.1);
  border-left-color: var(--color-error);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25em 0.5em;
  font-size: 0.75em;
  font-weight: var(--font-weight-medium);
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: var(--border-radius-full);
}

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

.badge-secondary {
  background-color: var(--color-neutral-200);
  color: var(--color-neutral-700);
}

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

.badge-warning {
  background-color: var(--color-warning);
  color: white;
}

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

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

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

.animate-fade-in {
  animation: fadeIn 0.5s var(--transition-ease);
}

.animate-slide-in {
  animation: slideInRight 0.5s var(--transition-ease);
}

/* Grid Component */
.grid {
  display: grid;
  width: 100%;
}

.flex-grid {
  display: flex;
  flex-wrap: wrap;
  width: 100%;
}

.grid-item {
  min-width: 0;
}

/* Gap utilities */
.gap-none { gap: 0; }
.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

.row-gap-none { row-gap: 0; }
.row-gap-xs { row-gap: var(--spacing-xs); }
.row-gap-sm { row-gap: var(--spacing-sm); }
.row-gap-md { row-gap: var(--spacing-md); }
.row-gap-lg { row-gap: var(--spacing-lg); }
.row-gap-xl { row-gap: var(--spacing-xl); }

.column-gap-none { column-gap: 0; }
.column-gap-xs { column-gap: var(--spacing-xs); }
.column-gap-sm { column-gap: var(--spacing-sm); }
.column-gap-md { column-gap: var(--spacing-md); }
.column-gap-lg { column-gap: var(--spacing-lg); }
.column-gap-xl { column-gap: var(--spacing-xl); }

/* Alignment utilities */
.align-start { align-items: flex-start; }
.align-center { align-items: center; }
.align-end { align-items: flex-end; }
.align-stretch { align-items: stretch; }

.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.justify-evenly { justify-content: space-evenly; }

/* Column span utilities */
.col-span-1 { grid-column: span 1; }
.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }
.col-span-4 { grid-column: span 4; }
.col-span-5 { grid-column: span 5; }
.col-span-6 { grid-column: span 6; }
.col-span-7 { grid-column: span 7; }
.col-span-8 { grid-column: span 8; }
.col-span-9 { grid-column: span 9; }
.col-span-10 { grid-column: span 10; }
.col-span-11 { grid-column: span 11; }
.col-span-12 { grid-column: span 12; }

/* Responsive column spans */
@media (min-width: 640px) {
  .sm\:col-span-1 { grid-column: span 1; }
  .sm\:col-span-2 { grid-column: span 2; }
  .sm\:col-span-3 { grid-column: span 3; }
  .sm\:col-span-4 { grid-column: span 4; }
  .sm\:col-span-5 { grid-column: span 5; }
  .sm\:col-span-6 { grid-column: span 6; }
  .sm\:col-span-7 { grid-column: span 7; }
  .sm\:col-span-8 { grid-column: span 8; }
  .sm\:col-span-9 { grid-column: span 9; }
  .sm\:col-span-10 { grid-column: span 10; }
  .sm\:col-span-11 { grid-column: span 11; }
  .sm\:col-span-12 { grid-column: span 12; }
}

@media (min-width: 768px) {
  .md\:col-span-1 { grid-column: span 1; }
  .md\:col-span-2 { grid-column: span 2; }
  .md\:col-span-3 { grid-column: span 3; }
  .md\:col-span-4 { grid-column: span 4; }
  .md\:col-span-5 { grid-column: span 5; }
  .md\:col-span-6 { grid-column: span 6; }
  .md\:col-span-7 { grid-column: span 7; }
  .md\:col-span-8 { grid-column: span 8; }
  .md\:col-span-9 { grid-column: span 9; }
  .md\:col-span-10 { grid-column: span 10; }
  .md\:col-span-11 { grid-column: span 11; }
  .md\:col-span-12 { grid-column: span 12; }
}

@media (min-width: 1024px) {
  .lg\:col-span-1 { grid-column: span 1; }
  .lg\:col-span-2 { grid-column: span 2; }
  .lg\:col-span-3 { grid-column: span 3; }
  .lg\:col-span-4 { grid-column: span 4; }
  .lg\:col-span-5 { grid-column: span 5; }
  .lg\:col-span-6 { grid-column: span 6; }
  .lg\:col-span-7 { grid-column: span 7; }
  .lg\:col-span-8 { grid-column: span 8; }
  .lg\:col-span-9 { grid-column: span 9; }
  .lg\:col-span-10 { grid-column: span 10; }
  .lg\:col-span-11 { grid-column: span 11; }
  .lg\:col-span-12 { grid-column: span 12; }
}

@media (min-width: 1280px) {
  .xl\:col-span-1 { grid-column: span 1; }
  .xl\:col-span-2 { grid-column: span 2; }
  .xl\:col-span-3 { grid-column: span 3; }
  .xl\:col-span-4 { grid-column: span 4; }
  .xl\:col-span-5 { grid-column: span 5; }
  .xl\:col-span-6 { grid-column: span 6; }
  .xl\:col-span-7 { grid-column: span 7; }
  .xl\:col-span-8 { grid-column: span 8; }
  .xl\:col-span-9 { grid-column: span 9; }
  .xl\:col-span-10 { grid-column: span 10; }
  .xl\:col-span-11 { grid-column: span 11; }
  .xl\:col-span-12 { grid-column: span 12; }
}

/* Image Component */
.image-container {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.image-container.has-aspect-ratio {
  height: 0;
}

.image {
  display: block;
  max-width: 100%;
  height: auto;
  transition: transform 0.3s ease;
}

.image-cover {
  object-fit: cover;
  width: 100%;
  height: 100%;
}

.image-contain {
  object-fit: contain;
  width: 100%;
  height: 100%;
}

.has-aspect-ratio .image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.image-placeholder,
.image-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  background-color: var(--color-surface-variant);
  color: var(--color-on-surface-secondary);
  font-size: var(--font-size-sm);
}

.has-aspect-ratio .image-placeholder,
.has-aspect-ratio .image-fallback {
  position: absolute;
  top: 0;
  left: 0;
}

/* List Component */
.list {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
}

.list-item {
  display: flex;
  align-items: center;
  padding: var(--spacing-md);
  transition: background-color 0.2s ease;
}

.list-compact .list-item {
  padding: var(--spacing-sm);
}

.list-bordered .list-item {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-xs);
}

.list-divided .list-item:not(:last-child) {
  border-bottom: 1px solid var(--color-divider);
}

.list-item.interactive {
  cursor: pointer;
}

.list-item.interactive:hover {
  background-color: var(--color-surface-variant);
}

.list-item.active {
  background-color: var(--color-primary-light);
  color: var(--color-on-primary);
}

.list-item.disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.list-item-icon {
  margin-right: var(--spacing-sm);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.list-item-content {
  flex: 1;
  min-width: 0;
}

.list-item-primary {
  font-weight: var(--font-weight-medium);
}

.list-item-secondary {
  font-size: var(--font-size-sm);
  color: var(--color-on-surface-secondary);
  margin-top: var(--spacing-xs);
}

/* Theme Toggle */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
  padding: var(--spacing-xs);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease;
}

.theme-toggle:hover {
  background-color: var(--color-surface-variant);
}

.theme-toggle:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-primary);
}

/* Form Component */
.form {
  width: 100%;
}

.form-error {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

.submit-button {
  margin-top: var(--spacing-md);
}

/* Breadcrumb Component */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  padding: 0;
  margin: 0;
  list-style: none;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  font-size: var(--font-size-sm);
}

.breadcrumb-item a {
  color: var(--color-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
}

.breadcrumb-item a:hover {
  text-decoration: underline;
}

.breadcrumb-item.active {
  color: var(--color-on-surface-secondary);
  font-weight: var(--font-weight-medium);
}

.breadcrumb-separator {
  margin: 0 var(--spacing-sm);
  color: var(--color-on-surface-tertiary);
}

.breadcrumb-icon {
  margin-right: var(--spacing-xs);
  display: flex;
  align-items: center;
}

/* Accordion Component */
.accordion {
  width: 100%;
  border-radius: var(--border-radius);
  overflow: hidden;
}

.accordion-item {
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  margin-bottom: var(--spacing-xs);
  border-radius: var(--border-radius);
  overflow: hidden;
}

.accordion-header {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.accordion-button {
  display: flex;
  align-items: center;
  width: 100%;
  padding: var(--spacing-md);
  background: none;
  border: none;
  text-align: left;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--color-on-surface);
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.accordion-button:hover {
  background-color: var(--color-surface-variant);
}

.accordion-button:focus {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--color-primary);
}

.accordion-item.disabled .accordion-button {
  opacity: 0.6;
  cursor: not-allowed;
}

.accordion-icon {
  margin-right: var(--spacing-sm);
  color: var(--color-primary);
}

.accordion-title {
  flex: 1;
}

.accordion-chevron {
  margin-left: var(--spacing-sm);
  transition: transform 0.3s ease;
}

.accordion-item.expanded .accordion-chevron {
  transform: rotate(180deg);
}

.accordion-content {
  height: 0;
  overflow: hidden;
  transition: height 0.3s ease;
}

.accordion-body {
  padding: var(--spacing-md);
  padding-top: 0;
}

/* Pagination Component */
.pagination {
  display: flex;
  justify-content: center;
  margin: var(--spacing-md) 0;
}

.pagination-list {
  display: flex;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
}

.pagination-item {
  margin: 0 var(--spacing-xs);
}

.pagination-button {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 var(--spacing-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background-color: var(--color-surface);
  color: var(--color-on-surface);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.pagination-sm .pagination-button {
  min-width: 2rem;
  height: 2rem;
  font-size: var(--font-size-xs);
}

.pagination-lg .pagination-button {
  min-width: 3rem;
  height: 3rem;
  font-size: var(--font-size-md);
}

.pagination-button:hover:not(:disabled) {
  background-color: var(--color-surface-variant);
  border-color: var(--color-primary);
}

.pagination-button:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-primary-light);
}

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

.pagination-current {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}

.pagination-current:hover {
  background-color: var(--color-primary-dark);
}

.pagination-button-text {
  display: none;
}

@media (min-width: 768px) {
  .pagination-button-text {
    display: inline;
    margin: 0 var(--spacing-xs);
  }
}

/* Progress Component */
.progress-container {
  width: 100%;
}

.progress-label {
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.progress {
  position: relative;
  height: 0.5rem;
  background-color: var(--color-surface-variant);
  border-radius: var(--border-radius-pill);
  overflow: hidden;
}

.progress-sm {
  height: 0.25rem;
}

.progress-md {
  height: 0.5rem;
}

.progress-lg {
  height: 1rem;
}

.progress-bar {
  height: 100%;
  background-color: var(--color-primary);
  transition: width 0.3s ease;
}

.progress-default .progress-bar {
  background-color: var(--color-primary);
}

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

.progress-warning .progress-bar {
  background-color: var(--color-warning);
}

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

.progress-info .progress-bar {
  background-color: var(--color-info);
}

.progress-value {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-on-primary);
  text-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
}

.progress-indeterminate .progress-bar {
  width: 100%;
  background-size: 200% 100%;
  background-image: linear-gradient(90deg, 
    transparent 0%, 
    var(--color-primary) 50%, 
    transparent 100%);
  animation: progress-indeterminate 1.5s infinite linear;
}

.progress-animated .progress-bar {
  animation: progress-stripes 1s linear infinite;
  background-image: linear-gradient(
    45deg,
    rgba(255, 255, 255, 0.15) 25%,
    transparent 25%,
    transparent 50%,
    rgba(255, 255, 255, 0.15) 50%,
    rgba(255, 255, 255, 0.15) 75%,
    transparent 75%,
    transparent
  );
  background-size: 1rem 1rem;
}

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

@keyframes progress-stripes {
  0% {
    background-position: 1rem 0;
  }
  100% {
    background-position: 0 0;
  }
}

/* Circular Progress */
.circular-progress {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.circular-progress svg {
  transform: rotate(-90deg);
  width: 100%;
  height: 100%;
}

.circular-progress-background {
  stroke: var(--color-surface-variant);
}

.circular-progress-value {
  stroke: var(--color-primary);
  transition: stroke-dashoffset 0.3s ease;
}

.progress-success .circular-progress-value {
  stroke: var(--color-success);
}

.progress-warning .circular-progress-value {
  stroke: var(--color-warning);
}

.progress-error .circular-progress-value {
  stroke: var(--color-error);
}

.progress-info .circular-progress-value {
  stroke: var(--color-info);
}

.circular-progress-label {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.progress-indeterminate .circular-progress-value {
  animation: circular-progress-rotate 1.5s linear infinite;
  stroke-dasharray: 1, 400;
  stroke-dashoffset: 0;
  stroke-linecap: round;
}

@keyframes circular-progress-rotate {
  0% {
    stroke-dasharray: 1, 400;
    stroke-dashoffset: 0;
  }
  50% {
    stroke-dasharray: 80, 400;
    stroke-dashoffset: -35;
  }
  100% {
    stroke-dasharray: 1, 400;
    stroke-dashoffset: -124;
  }
}