@use 'variables' as *;
@use 'mixins' as *;

// Buttons
.btn {
  @include button-base;

  &-primary {
    @include button-variant($accent, white, null, $accent-hover);
  }

  &-secondary {
    @include button-variant($bg-3, $text-0, $border);

    &:hover {
      border-color: $border-strong;
      background: $btn-secondary-hover;
    }
  }

  &-danger {
    @include button-variant(transparent, $error, $error-border-light);

    &:hover {
      background: $btn-danger-hover;
    }
  }

  &-ghost {
    @include button-ghost;
    color: $text-1;
    padding: 5px $space-4;

    &:hover {
      color: $text-0;
      background: $btn-ghost-hover;
    }
  }

  &-sm {
    padding: 3px $space-4;
    font-size: $font-size-base;
  }

  &-icon {
    padding: $space-2;
    border-radius: $radius-sm;
    background: transparent;
    border: none;
    color: $text-2;
    cursor: pointer;
    transition: color $transition-base;
    font-size: $font-size-lg;

    &:hover {
      color: $text-0;
    }
  }

  &:disabled,
  &[disabled] {
    @include disabled-state(0.4);
  }

  &.btn-disabled-hint:disabled {
    opacity: 0.6;
    border-style: dashed;
    pointer-events: auto;
    cursor: help;
  }
}

// Cards
.card {
  @include card;

  &-header {
    @include card-header;
  }

  &-title {
    font-size: $font-size-xl;
    font-weight: $font-weight-semibold;
  }
}

// Tables
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: $bg-2;
  border: 1px solid $border;
  border-radius: $radius;
  overflow: hidden;

  thead th {
    padding: $space-4 14px;
    text-align: left;
    font-size: $font-size-sm;
    font-weight: $font-weight-semibold;
    @include text-uppercase($letter-spacing-wider);
    color: $text-2;
    border-bottom: 1px solid $border;
    background: $bg-3;
  }

  tbody {
    td {
      padding: $space-4 14px;
      font-size: $font-size-lg;
      border-bottom: 1px solid $border-subtle;
      max-width: 300px;
      @include text-truncate;
    }

    tr {
      cursor: pointer;
      transition: background $transition-fast;

      &:hover {
        background: $overlay-subtle;
      }

      &.row-selected {
        background: $info-bg-light;
      }

      &:last-child td {
        border-bottom: none;
      }
    }
  }
}

.sortable-header {
  cursor: pointer;
  user-select: none;
  transition: color $transition-base;

  &:hover {
    color: $accent-text;
  }
}

// Forms
input[type='text'],
textarea,
select {
  @include input-base;

  &[type='number'] {
    width: 80px;
    padding: 6px $space-4;
    -moz-appearance: textfield;

    &::-webkit-outer-spin-button,
    &::-webkit-inner-spin-button {
      -webkit-appearance: none;
      margin: 0;
    }
  }
}

textarea {
  min-height: 64px;
  resize: vertical;
}

select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='%236c6c84' d='M5 7L1 3h8z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right $space-4 center;
  padding-right: 26px;
  min-width: 100px;
}

.form-group {
  margin-bottom: $space-6;
}

.form-label {
  @include form-label;
}

.form-row {
  @include flex(row, flex-start, flex-end, $space-4);

  input[type='text'] {
    flex: 1;
  }
}

.form-label-row {
  @include flex(row, flex-start, center, 2px);
  margin-bottom: $space-2;

  .form-label {
    margin-bottom: 0;
  }
}

// Checkbox

input[type='checkbox'] {
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border: 1px solid $border-strong;
  border-radius: 3px;
  background: $bg-2;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  transition: all $transition-slow ease;

  &:hover {
    border-color: $accent;
    background: $bg-3;
  }

  &:checked {
    background: $accent;
    border-color: $accent;

    &::after {
      content: '';
      position: absolute;
      left: 5px;
      top: 2px;
      width: 4px;
      height: 8px;
      border: solid $bg-0;
      border-width: 0 2px 2px 0;
      transform: rotate(45deg);
    }
  }

  &:focus-visible {
    @include focus-outline;
  }
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: $space-4;
  cursor: pointer;
  font-size: $font-size-lg;
  color: $text-1;
  user-select: none;

  &:hover {
    color: $text-0;
  }

  input[type='checkbox'] {
    margin: 0;
  }
}

// Toggle switch
.toggle {
  @include flex(row, flex-start, center, $space-4);
  cursor: pointer;
  font-size: $font-size-lg;
  color: $text-0;

  &.disabled {
    opacity: 0.4;
    cursor: not-allowed;
  }
}

.toggle-track {
  width: 32px;
  height: 18px;
  border-radius: 9px;
  background: $bg-3;
  border: 1px solid $border;
  position: relative;
  transition: background $transition-slow;
  flex-shrink: 0;

  &.active {
    background: $accent;
    border-color: $accent;

    .toggle-thumb {
      transform: translateX(14px);
    }
  }
}

.toggle-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: $text-0;
  position: absolute;
  top: 1px;
  left: 1px;
  transition: transform $transition-slow;
}

// Filter chips
.filter-bar {
  @include flex(column, flex-start, stretch, 12px);
  padding: $space-6;
  background: $bg-0;
  border: 1px solid $border-subtle;
  border-radius: $radius;
  margin-bottom: $space-6;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: $space-4;
}

.filter-label {
  font-size: $font-size-base;
  font-weight: $font-weight-medium;
  color: $text-2;
  @include text-uppercase($letter-spacing-uppercase);
  margin-right: $space-2;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px $space-5;
  background: $bg-2;
  border: 1px solid $border;
  border-radius: 14px;
  cursor: pointer;
  font-size: $font-size-base;
  color: $text-1;
  transition: all $transition-slow ease;
  user-select: none;

  &:hover {
    background: $bg-3;
    border-color: $border-strong;
    color: $text-0;
  }

  &.active {
    background: $accent-dim;
    border-color: $accent;
    color: $accent-text;
  }

  input[type='checkbox'] {
    width: 12px;
    height: 12px;
    margin: 0;

    &:checked::after {
      left: 3px;
      top: 1px;
      width: 3px;
      height: 6px;
    }
  }
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 6px;

  label {
    display: flex;
    align-items: center;
    gap: 3px;
    cursor: pointer;
    color: $text-1;
    font-size: $font-size-base;
    white-space: nowrap;

    &:hover {
      color: $text-0;
    }
  }
}

.filter-separator {
  width: 1px;
  height: 20px;
  background: $border;
  flex-shrink: 0;
}

// View toggle
.view-toggle {
  display: flex;
  border: 1px solid $border;
  border-radius: $radius-sm;
  overflow: hidden;
}

.view-btn {
  padding: $space-2 $space-5;
  background: $bg-2;
  border: none;
  color: $text-2;
  cursor: pointer;
  font-size: $font-size-4xl;
  line-height: 1;
  transition: background $transition-base, color $transition-base;

  &:first-child {
    border-right: 1px solid $border;
  }

  &:hover {
    color: $text-0;
    background: $bg-3;
  }

  &.active {
    background: $accent-dim;
    color: $accent-text;
  }
}

// Breadcrumb
.breadcrumb {
  @include flex(row, flex-start, center, $space-2);
  padding: $space-5 16px;
  font-size: 0.85rem;
  color: $text-2;
}

.breadcrumb-sep {
  color: $text-2;
  opacity: 0.5;
}

.breadcrumb-link {
  color: $accent-text;
  text-decoration: none;
  cursor: pointer;

  &:hover {
    text-decoration: underline;
  }
}

.breadcrumb-current {
  color: $text-0;
  font-weight: $font-weight-medium;
}

// Progress bar
.progress-bar {
  width: 100%;
  height: 8px;
  background: $bg-3;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 6px;
}

.progress-fill {
  height: 100%;
  background: $accent;
  border-radius: 4px;
  transition: width 0.3s ease;

  &.indeterminate {
    width: 30%;
    animation: indeterminate 1.5s ease-in-out infinite;
  }
}

// Loading states
.loading-overlay {
  @include flex-center;
  padding: 48px 16px;
  color: $text-2;
  font-size: $font-size-lg;
  gap: $space-5;
}

.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid $border;
  border-top-color: $accent;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner-small {
  width: 14px;
  height: 14px;
  border: 2px solid $border;
  border-top-color: $accent;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner-tiny {
  width: 10px;
  height: 10px;
  border: 1.5px solid $border;
  border-top-color: $accent;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

// Modal
.modal-overlay {
  position: fixed;
  inset: 0;
  background: $media-overlay-medium;
  @include flex-center;
  z-index: $z-modal-backdrop;
  @include fade-in;
}

.modal {
  background: $bg-2;
  border: 1px solid $border;
  border-radius: $radius-md;
  padding: 20px;
  min-width: 360px;
  max-width: 480px;
  box-shadow: $shadow-lg;

  &.wide {
    max-width: 600px;
    max-height: 70vh;
    overflow-y: auto;
  }

  &-title {
    font-size: $font-size-2xl;
    font-weight: $font-weight-semibold;
    margin-bottom: 6px;
  }

  &-body {
    font-size: $font-size-md;
    color: $text-1;
    margin-bottom: $space-8;
    line-height: $line-height-relaxed;
  }

  &-actions {
    @include flex(row, flex-end, center, 6px);
  }
}

// Tooltips

.tooltip-trigger {
  @include tooltip-trigger;

  &:hover .tooltip-text {
    display: block;
  }
}

.tooltip-text {
  @include tooltip-content;
}

// Media player

.media-player {
  position: relative;
  background: $bg-0;
  border-radius: $radius;
  overflow: hidden;

  &:focus {
    outline: none;
  }

  &-audio .player-artwork {
    @include flex(column, center, center, $space-4);
    padding: $space-12 $space-8 8px;
  }
}

.player-artwork {
  img {
    max-width: 200px;
    max-height: 200px;
    border-radius: $radius;
    object-fit: cover;
  }

  &-placeholder {
    width: 120px;
    height: 120px;
    @include flex-center;
    background: $bg-2;
    border-radius: $radius;
    font-size: 48px;
    opacity: 0.3;
  }
}

.player-title {
  font-size: $font-size-lg;
  font-weight: $font-weight-medium;
  color: $text-0;
  text-align: center;
}

.player-controls {
  @include flex(row, flex-start, center, $space-4);
  padding: $space-5 14px;
  background: $bg-2;
}

.media-player-video .player-controls {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: $media-controls-bg;
  opacity: 0;
  transition: opacity $transition-slower;
}

.media-player-video:hover .player-controls {
  opacity: 1;
}

.play-btn,
.mute-btn,
.fullscreen-btn {
  background: none;
  border: none;
  color: $text-0;
  cursor: pointer;
  font-size: $font-size-4xl;
  padding: $space-2;
  line-height: 1;
  transition: color $transition-base;

  &:hover {
    color: $accent-text;
  }
}

.player-time {
  font-size: $font-size-base;
  color: $text-2;
  font-family: $font-family-mono;
  min-width: 36px;
  text-align: center;
  user-select: none;
}

.seek-bar {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: $space-2;
  background: $bg-3;
  outline: none;
  cursor: pointer;

  &::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: $accent;
    cursor: pointer;
    border: none;
  }

  &::-moz-range-thumb {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: $accent;
    cursor: pointer;
    border: none;
  }
}

.volume-slider {
  width: 70px;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: $space-2;
  background: $bg-3;
  outline: none;
  cursor: pointer;

  &::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: $text-1;
    cursor: pointer;
    border: none;
  }

  &::-moz-range-thumb {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: $text-1;
    cursor: pointer;
    border: none;
  }
}

// Image viewer

.image-viewer-overlay {
  position: fixed;
  inset: 0;
  background: $media-overlay-bg;
  z-index: 150;
  @include flex(column);
  animation: fade-in 0.15s ease-out;

  &:focus {
    outline: none;
  }
}

.image-viewer-toolbar {
  @include flex-between;
  padding: $space-5 16px;
  background: $media-overlay-medium;
  border-bottom: 1px solid $image-viewer-border;
  z-index: 2;
  user-select: none;

  &-left,
  &-center,
  &-right {
    @include flex(row, flex-start, center, 6px);
  }
}

.iv-btn {
  background: $image-viewer-btn-bg;
  border: 1px solid $image-viewer-btn-border;
  color: $text-0;
  border-radius: $radius-sm;
  padding: $space-2 $space-5;
  font-size: $font-size-md;
  cursor: pointer;
  transition: background $transition-base;

  &:hover {
    background: $image-viewer-btn-hover;
  }

  &.iv-close {
    color: $error;
    font-weight: $font-weight-semibold;
  }
}

.iv-zoom-label {
  font-size: $font-size-base;
  color: $text-1;
  min-width: 40px;
  text-align: center;
  font-family: $font-family-mono;
}

.image-viewer-canvas {
  flex: 1;
  @include flex-center;
  overflow: hidden;
  position: relative;

  img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    user-select: none;
    -webkit-user-drag: none;
  }
}

// PDF viewer

.pdf-viewer {
  @include flex(column);
  height: 100%;
  min-height: 500px;
  background: $bg-0;
  border-radius: $radius;
  overflow: hidden;
}

.pdf-toolbar {
  @include flex(row, flex-start, center, $space-6);
  padding: $space-5 $space-6;
  background: $bg-1;
  border-bottom: 1px solid $border;

  &-group {
    @include flex(row, flex-start, center, $space-2);
  }
}

.pdf-toolbar-btn {
  @include flex-center;
  width: 28px;
  height: 28px;
  background: $bg-2;
  border: 1px solid $border;
  border-radius: $radius-sm;
  color: $text-1;
  font-size: 14px;
  cursor: pointer;
  transition: all $transition-slow;

  &:hover:not(:disabled) {
    background: $bg-3;
    color: $text-0;
  }

  &:disabled {
    opacity: 0.4;
    cursor: not-allowed;
  }
}

.pdf-zoom-label {
  min-width: 45px;
  text-align: center;
  font-size: $font-size-md;
  color: $text-1;
}

.pdf-container {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: $bg-2;
}

.pdf-object {
  width: 100%;
  height: 100%;
  border: none;
}

.pdf-loading,
.pdf-error {
  position: absolute;
  inset: 0;
  @include flex(column, center, center, 12px);
  background: $bg-1;
  color: $text-1;
}

.pdf-error {
  padding: $space-6;
  text-align: center;
}

.pdf-fallback {
  @include flex(column, center, center, $space-8);
  padding: 48px $space-6;
  text-align: center;
  color: $text-2;
}

// Markdown viewer

.markdown-viewer {
  padding: $space-8;
  text-align: left;
  @include flex(column, flex-start, stretch, 12px);
}

.markdown-toolbar {
  @include flex(row, flex-start, center, $space-4);
  padding: $space-4;
  background: $bg-2;
  border-radius: $radius;
  border: 1px solid $border;
}

.toolbar-btn {
  padding: 6px $space-6;
  border: 1px solid $border;
  border-radius: $radius-sm;
  background: $bg-1;
  color: $text-1;
  font-size: $font-size-lg;
  font-weight: $font-weight-medium;
  cursor: pointer;
  transition: all $transition-slow;

  &:hover {
    background: $bg-3;
    border-color: $border-strong;
  }

  &.active {
    background: $accent;
    color: white;
    border-color: $accent;
  }
}

.markdown-source {
  max-width: 100%;
  background: $bg-3;
  border: 1px solid $border;
  border-radius: $radius;
  padding: $space-8;
  overflow-x: auto;
  font-family: $font-family-mono-alt;
  font-size: $font-size-lg;
  line-height: $line-height-loose;
  color: $text-0;
  white-space: pre-wrap;
  word-wrap: break-word;

  code {
    font-family: inherit;
    background: none;
    padding: 0;
    border: none;
  }
}

.markdown-content {
  max-width: 800px;
  color: $text-0;
  line-height: $line-height-loose;
  font-size: 14px;
  text-align: left;

  h1 {
    font-size: 1.8em;
    font-weight: $font-weight-bold;
    margin: 1em 0 0.5em;
    border-bottom: 1px solid $border-subtle;
    padding-bottom: 0.3em;
  }

  h2 {
    font-size: 1.5em;
    font-weight: $font-weight-semibold;
    margin: 0.8em 0 0.4em;
    border-bottom: 1px solid $border-subtle;
    padding-bottom: 0.2em;
  }

  h3 {
    font-size: 1.25em;
    font-weight: $font-weight-semibold;
    margin: 0.6em 0 0.3em;
  }

  h4 {
    font-size: 1.1em;
    font-weight: $font-weight-semibold;
    margin: 0.5em 0 0.25em;
  }

  h5,
  h6 {
    font-size: 1em;
    font-weight: $font-weight-semibold;
    margin: 0.4em 0 0.2em;
    color: $text-1;
  }

  p {
    margin: 0 0 1em;
  }

  a {
    color: $accent;
    text-decoration: none;

    &:hover {
      text-decoration: underline;
    }
  }

  pre {
    background: $bg-3;
    border: 1px solid $border;
    border-radius: $radius-sm;
    padding: $space-6 $space-8;
    overflow-x: auto;
    margin: 0 0 1em;
    font-family: $font-family-mono;
    font-size: $font-size-md;
    line-height: $line-height-relaxed;
  }

  code {
    background: $bg-3;
    padding: 1px 5px;
    border-radius: $radius-sm;
    font-family: $font-family-mono;
    font-size: 0.9em;
  }

  pre code {
    background: none;
    padding: 0;
  }

  blockquote {
    border-left: 3px solid $accent;
    padding: $space-2 $space-8;
    margin: 0 0 1em;
    color: $text-1;
    background: $purple-bg;
  }

  table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 1em;
  }

  th,
  td {
    padding: 6px $space-6;
    border: 1px solid $border;
    font-size: $font-size-lg;
  }

  th {
    background: $bg-3;
    font-weight: $font-weight-semibold;
    text-align: left;
  }

  tr:nth-child(even) {
    background: $bg-2;
  }

  ul,
  ol {
    margin: 0 0 1em;
    padding-left: $space-8;
  }

  ul {
    list-style: disc;
  }

  ol {
    list-style: decimal;
  }

  li {
    padding: $space-1 0;
    font-size: 14px;
    color: $text-0;
  }

  hr {
    border: none;
    border-top: 1px solid $border;
    margin: 1.5em 0;
  }

  img {
    max-width: 100%;
    border-radius: $radius;
  }

  .footnote-definition {
    font-size: 0.85em;
    color: $text-1;
    margin-top: 0.5em;
    padding-left: 1.5em;

    sup {
      color: $accent;
      margin-right: $space-2;
    }
  }

  sup a {
    color: $accent;
    text-decoration: none;
    font-size: 0.8em;
  }
}

.wikilink {
  color: $accent-text;
  text-decoration: none;
  border-bottom: 1px dashed $accent;
  cursor: pointer;
  transition: border-color $transition-base, color $transition-base;

  &:hover {
    color: $accent;
    border-bottom-style: solid;
  }
}

.wikilink-embed {
  display: inline-block;
  padding: $space-1 $space-4;
  background: $purple-light;
  border: 1px dashed $purple-border;
  border-radius: $radius-sm;
  color: $type-audio-text;
  font-size: $font-size-md;
  cursor: default;
}