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

// Graph view

.graph-view {
  @include flex(column);
  height: 100%;
  background: $bg-1;
  border-radius: $radius;
  overflow: hidden;
}

.graph-toolbar {
  @include flex(row, flex-start, center, $space-8);
  padding: $space-6 $space-8;
  background: $bg-2;
  border-bottom: 1px solid $border;
}

.graph-title {
  font-size: $font-size-xl;
  font-weight: $font-weight-semibold;
  color: $text-0;
}

.graph-controls {
  @include flex(row, flex-start, center, $space-4);
  font-size: $font-size-md;
  color: $text-1;

  select {
    padding: $space-2 20px $space-2 $space-4;
    font-size: $font-size-base;
    background: $bg-3;
  }
}

.graph-stats {
  margin-left: auto;
  font-size: $font-size-base;
  color: $text-2;
}

.graph-container {
  flex: 1;
  position: relative;
  @include flex-center;
  overflow: hidden;
  background: $bg-0;
}

.graph-loading,
.graph-error,
.graph-empty {
  @include flex(column, center, center, $space-5);
  padding: 48px;
  color: $text-2;
  font-size: $font-size-lg;
  text-align: center;
}

.graph-svg {
  max-width: 100%;
  max-height: 100%;
  cursor: grab;
}

.graph-svg-container {
  position: relative;
  width: 100%;
  height: 100%;
}

.graph-zoom-controls {
  position: absolute;
  top: $space-8;
  left: $space-8;
  @include flex(column, flex-start, stretch, $space-4);
  z-index: 5;
}

.zoom-btn {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  background: $bg-2;
  border: 1px solid $border;
  color: $text-0;
  font-size: 18px;
  font-weight: bold;
  @include flex-center;
  cursor: pointer;
  transition: all $transition-slow;
  box-shadow: $shadow-sm;

  &:hover {
    background: $bg-3;
    border-color: $border-strong;
    transform: scale(1.05);
  }

  &:active {
    transform: scale(0.95);
  }
}

// Graph elements

.graph-edges line {
  stroke: $border-strong;
  stroke-width: 1;
  opacity: 0.6;

  &.edge-type-wikilink {
    stroke: $accent;
  }

  &.edge-type-embed {
    stroke: $graph-edge-embed;
    stroke-dasharray: 4 2;
  }
}

.graph-nodes {
  .graph-node {
    cursor: pointer;

    circle {
      fill: $graph-node-fill;
      stroke: $graph-node-stroke;
      stroke-width: 2;
      transition: fill $transition-slow, stroke $transition-slow;
    }

    &:hover circle {
      fill: $graph-node-hover;
    }

    &.selected circle {
      fill: $accent;
      stroke: $graph-node-selected;
    }

    text {
      fill: $text-1;
      font-size: 11px;
      pointer-events: none;
      text-anchor: middle;
      dominant-baseline: central;
      transform: translateY(16px);
    }
  }
}

// Node details panel

.node-details-panel {
  position: absolute;
  top: $space-8;
  right: $space-8;
  width: 280px;
  background: $bg-2;
  border: 1px solid $border;
  border-radius: $radius;
  box-shadow: $shadow;
  z-index: 10;
}

.node-details-header {
  @include flex-between;
  padding: $space-5 14px;
  border-bottom: 1px solid $border-subtle;

  h3 {
    font-size: $font-size-lg;
    font-weight: $font-weight-semibold;
    color: $text-0;
    margin: 0;
    @include text-truncate;
  }

  .close-btn {
    background: none;
    border: none;
    color: $text-2;
    cursor: pointer;
    font-size: 14px;
    padding: $space-1 $space-3;
    line-height: 1;

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

.node-details-content {
  padding: 14px;

  .node-title {
    font-size: $font-size-md;
    color: $text-1;
    margin-bottom: $space-6;
  }
}

.node-stats {
  display: flex;
  gap: $space-8;
  margin-bottom: $space-6;

  .stat {
    font-size: $font-size-md;
    color: $text-2;

    strong {
      color: $text-0;
    }
  }
}

// Physics controls

.physics-controls-panel {
  position: absolute;
  top: $space-8;
  right: $space-8;
  width: 300px;
  background: $bg-2;
  border: 1px solid $border;
  border-radius: $radius;
  box-shadow: $shadow;
  padding: $space-8;
  z-index: 10;

  h4 {
    font-size: $font-size-lg;
    font-weight: $font-weight-semibold;
    color: $text-0;
    margin: 0 0 $space-8 0;
    padding-bottom: $space-4;
    border-bottom: 1px solid $border-subtle;
  }

  .btn {
    width: 100%;
    margin-top: $space-4;
  }
}

.control-group {
  margin-bottom: 14px;

  label {
    display: block;
    font-size: $font-size-base;
    font-weight: $font-weight-medium;
    color: $text-1;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: $letter-spacing-uppercase;
  }

  input[type='range'] {
    width: 100%;
    height: 4px;
    border-radius: $space-2;
    background: $bg-3;
    outline: none;
    -webkit-appearance: none;

    &::-webkit-slider-thumb {
      -webkit-appearance: none;
      appearance: none;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: $accent;
      cursor: pointer;
      transition: transform $transition-base;

      &:hover {
        transform: scale(1.15);
      }
    }

    &::-moz-range-thumb {
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: $accent;
      cursor: pointer;
      border: none;
      transition: transform $transition-base;

      &:hover {
        transform: scale(1.15);
      }
    }
  }
}

.control-value {
  display: inline-block;
  margin-top: $space-1;
  font-size: $font-size-base;
  color: $text-2;
  font-family: $font-family-mono;
}