// Verso Lumière — editor chrome overrides.
// Scoped to body[data-lumiere='true'] — zero impact on Classic themes.

$lum-teal:   #2a9d8f;
$lum-blue:   #3d7ebf;
$lum-border: #daeae7;

// Same noise as the dashboard
$lum-noise: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.22'/%3E%3C/svg%3E");

// ── CSS variable overrides ─────────────────────────────────────────────────

[data-lumiere='true'] {
  // Toolbar
  --redesign-toolbar-background:                   #f4fbf9;
  --redesign-toolbar-border-divider:               #{$lum-border};
  --redesign-toolbar-home-button-hover-background: rgba(42, 157, 143, 0.12);
  --redesign-subdued-button-hover-background:      rgba(42, 157, 143, 0.12);
  --redesign-subdued-button-color:                 #1a2e3b;

  // Rail icon strip
  --ide-rail-background:              #e8f5f2;
  --ide-rail-border-colour:           #{$lum-border};
  --ide-rail-color:                   #2d5a52;
  --ide-rail-link-background:         transparent;
  --ide-rail-link-hover-background:   rgba(42, 157, 143, 0.15);
  --ide-rail-link-hover-color:        #{$lum-teal};
  --ide-rail-link-active-color:       #ffffff;
  --ide-rail-link-active-background:  #{$lum-teal};
  --ide-rail-header-subdued-button-color: #2d5a52;
  --ide-rail-header-subdued-button-hover-background: rgba(42, 157, 143, 0.15);

  // File tree — transparent so the panel-group noise shows through
  --file-tree-bg:                      transparent;
  --file-tree-item-color:              #1a2e3b;
  --file-tree-icon-colour:             #2a9d8f;
  --file-tree-expand-button-color:     #1a2e3b;
  --file-tree-item-hover-bg:           rgba(42, 157, 143, 0.10);
  --file-tree-item-selected-bg:        rgba(42, 157, 143, 0.20);
  --file-tree-item-selected-color:     #1a5c52;

  // Compile/recompile button: teal instead of blue
  --bg-accent-01: #{$lum-teal};
  --bg-accent-02: #{$lum-teal};
  --bg-accent-03: rgba(42, 157, 143, 0.15);

  // Outline panel — transparent bg so the panel-group noise shows through
  --outline-bg-color:                   transparent;
  --outline-border-color:               #{$lum-border};
  --outline-header-hover-bg:            rgba(42, 157, 143, 0.08);
  --outline-item-hover-bg:              rgba(42, 157, 143, 0.10);
  --outline-line-guide-color:           #{$lum-border};
  --outline-container-color-bg:         transparent;
  --outline-content-color:              #1a2e3b;
  --outline-item-highlight-bg:          rgba(42, 157, 143, 0.20);
  --outline-item-highlight-color:       #1a5c52;
  --outline-item-highlight-font-weight: bold;
  --outline-item-carat-color:           #64748b;

  // Panel resize handles
  --editor-resizer-bg-color: #{$lum-border};
}

// ── Toolbar — gradient background + accent stripe ──────────────────────────

[data-lumiere='true'] .ide-redesign-toolbar {
  position: relative;
  // Exponential-ish teal wash: strong at top, nearly gone by mid-height
  background:
    linear-gradient(
      180deg,
      rgba(42, 157, 143, 0.20) 0%,
      rgba(42, 157, 143, 0.09) 30%,
      rgba(42, 157, 143, 0.03) 60%,
      transparent 100%
    ),
    #f7fdfc !important;
  border-bottom: 1px solid $lum-border;
  box-shadow: 0 2px 10px rgba(42, 157, 143, 0.10);

  // 4px teal→blue gradient stripe at the very top
  &::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, $lum-teal 0%, $lum-blue 100%);
    pointer-events: none;
  }
}

// ── Rail icon strip — grainy teal-tinted background ────────────────────────

[data-lumiere='true'] .ide-rail {
  background: linear-gradient(180deg, #cceee8 0%, #daf2ee 100%);
  border-right-color: $lum-border;
}

// Active tab bottom indicator: white dot on teal background
[data-lumiere='true'] .ide-rail-tab-link.open-rail::after {
  background-color: rgba(255, 255, 255, 0.8);
}

// ── Rail panel (file tree / outline / search) — grainy gradient ───────────

[data-lumiere='true'] .file-tree-outline-panel-group {
  background-image:
    #{$lum-noise},
    radial-gradient(ellipse 100% 60% at 100% 0%, rgba($lum-teal, 0.30) 0%, transparent 60%),
    radial-gradient(ellipse 80% 50% at   0% 95%, rgba($lum-blue, 0.18) 0%, transparent 55%);
  background-size:  200px 200px, cover, cover;
  background-repeat: repeat, no-repeat, no-repeat;
  background-color: #f4fbf9;
}

// Panel header bar inside rail panels
[data-lumiere='true'] .rail-panel-header {
  background: linear-gradient(90deg, rgba($lum-teal, 0.12) 0%, transparent 80%);
  border-bottom: 1px solid $lum-border;
}

[data-lumiere='true'] .rail-panel-title {
  color: #1a5c52;
}

// File tree toolbar row
[data-lumiere='true'] .file-tree-toolbar {
  border-bottom: 1px solid rgba($lum-teal, 0.15);
}

// ── CodeMirror toolbar buttons — rounded square style ─────────────────────

[data-lumiere='true'] .ol-cm-toolbar {
  // Source editor formatting buttons (Bold, Italic, Link, etc.)
  .ol-cm-toolbar-button {
    border-radius: 7px !important;
    transition: background-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;

    &:hover:not(:disabled) {
      background-color: rgba(42, 157, 143, 0.10) !important;
      color: $lum-teal !important;
    }

    &.active,
    &[aria-pressed='true'] {
      background-color: rgba(42, 157, 143, 0.18) !important;
      color: $lum-teal !important;
    }
  }

  // Toolbar group dividers
  .ol-cm-toolbar-button-group {
    gap: 2px;
  }
}

// ── Toolbar action buttons (Share, Present, History, Layout, etc.) ─────────
// Targets the right-hand action area of the toolbar; covers OLButton (btn),
// subdued icon buttons, and the layout dropdown toggle.

[data-lumiere='true'] .ide-redesign-toolbar-actions {
  .btn {
    border-radius: 7px !important;
  }

  .ide-redesign-toolbar-button-subdued,
  .ide-redesign-toolbar-button-icon {
    border-radius: 7px !important;
    &:hover:not(:disabled) {
      background-color: rgba(42, 157, 143, 0.10) !important;
      color: $lum-teal !important;
    }
  }

  .layout-dropdown .dropdown-toggle {
    border-radius: 7px !important;
  }
}

// Also round the left-hand menu-bar subdued buttons (File, Edit, Help…)
[data-lumiere='true'] .ide-redesign-toolbar-menu {
  .ide-redesign-toolbar-button-subdued,
  .ide-redesign-toolbar-button-icon {
    border-radius: 7px !important;
  }
}

// ── PDF panel toolbar (Recompile, Logs, Download) ──────────────────────────
// The compile button and its neighbours live in .toolbar-pdf, not in the
// main ide-redesign-toolbar, so they need their own border-radius rule.

[data-lumiere='true'] .toolbar-pdf {
  .btn {
    border-radius: 7px !important;
  }
}

// ── Settings modal ────────────────────────────────────────────────────────
// :has() scopes to only this modal so other editor modals are unaffected.

[data-lumiere='true'] .modal-content:has(.ide-settings-modal-body) {
  border: 1px solid $lum-border;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba($lum-teal, 0.14);

  .modal-header {
    position: relative;
    background: linear-gradient(180deg, #e8f5f2 0%, #f8fffe 100%);
    border-bottom: 1px solid $lum-border;

    &::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, $lum-teal 0%, $lum-blue 100%);
    }
  }

  .modal-title {
    color: #1a5c52;
    font-weight: 600;
  }
}

[data-lumiere='true'] .ide-settings-tab-nav.nav {
  background: linear-gradient(180deg, rgba($lum-teal, 0.04) 0%, transparent 100%);
  border-right-color: $lum-border;
}

[data-lumiere='true'] .ide-settings-tab-link {
  color: #1a2e3b;

  &:visited { color: #1a2e3b; }

  &.active {
    color: $lum-teal;
    background-color: rgba($lum-teal, 0.12);
    font-weight: 600;
  }

  &:hover:not(.active) {
    background-color: rgba($lum-teal, 0.07);
    color: darken($lum-teal, 5%);
    text-decoration: none;
  }
}

[data-lumiere='true'] .ide-settings-section-title {
  color: $lum-teal;
  border-bottom-color: $lum-border;
}

[data-lumiere='true'] .ide-settings-tab-content {
  .form-select:focus,
  .form-control:focus {
    border-color: rgba($lum-teal, 0.5);
    box-shadow: 0 0 0 0.2rem rgba($lum-teal, 0.18);
  }
}

// ── Compile button — teal gradient ────────────────────────────────────────
// .compile-button-group is a split button: main Recompile + dropdown arrow.
// Only the outer corners get rounded; the inner shared edge stays flat.

[data-lumiere='true'] .compile-button-group {
  // Main (left) button: round left side, flat right side
  .compile-button {
    border-radius: 7px 0 0 7px !important;
  }

  // Dropdown arrow (right button): flat left side, round right side
  .compile-dropdown-toggle {
    border-radius: 0 7px 7px 0 !important;
  }

  // Teal gradient on the main compile button only
  .compile-button.btn-primary {
    background: linear-gradient(135deg, $lum-teal 0%, darken($lum-teal, 8%) 100%) !important;
    border-color: darken($lum-teal, 10%) !important;
    box-shadow: 0 2px 8px rgba($lum-teal, 0.35) !important;

    &:hover,
    &:focus {
      background: linear-gradient(135deg, lighten($lum-teal, 4%) 0%, $lum-teal 100%) !important;
      box-shadow: 0 4px 14px rgba($lum-teal, 0.45) !important;
    }
  }

  // Dropdown toggle also gets the teal background (same button group, same color)
  .compile-dropdown-toggle.btn-primary {
    background: linear-gradient(135deg, darken($lum-teal, 5%) 0%, darken($lum-teal, 12%) 100%) !important;
    border-color: darken($lum-teal, 10%) !important;
    border-left-color: rgba(255, 255, 255, 0.2) !important;
    box-shadow: 0 2px 8px rgba($lum-teal, 0.35) !important;
  }
}

// ── Code / Visual editor toggle ────────────────────────────────────────────
// Replace the pill shape with rounded-square and add a sliding indicator that
// moves under the active tab instead of a simple background-color crossfade.

[data-lumiere='true'] .toggle-switch {
  border-radius: 10px;
  background-color: rgba($lum-teal, 0.07);
  border: 1px solid rgba($lum-teal, 0.18);
  padding: 3px;
  position: relative;

  // Sliding indicator — absolutely positioned under the active label
  &::before {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    // Each tab gets exactly half the inner area (enforced by flex: 1 below)
    width: calc(50% - 3px);
    height: calc(100% - 6px);
    background: $lum-teal;
    border-radius: 7px;
    box-shadow: 0 2px 6px rgba($lum-teal, 0.35);
    transition: transform 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
    pointer-events: none;
    z-index: 0;
  }

  // Slide the indicator right when Visual is active
  &:has(input[value='rich-text']:checked)::before {
    transform: translateX(100%);
  }

  // Force Code label and Visual span wrapper to equal width
  > label.toggle-switch-label {
    flex: 1;
  }

  > span {
    flex: 1;
    display: flex;
  }
}

[data-lumiere='true'] .toggle-switch-label {
  flex: 1;
  border-radius: 7px;
  position: relative;
  z-index: 1;
  color: $lum-teal;
  transition: color 0.18s ease;
}

// Active tab: white text over the teal slider; remove built-in bg/shadow
[data-lumiere='true'] .toggle-switch-input:checked + .toggle-switch-label {
  color: #fff;
  background-color: transparent !important;
  box-shadow: none !important;
}

// Disabled tab (Visual locked on non-.tex files)
[data-lumiere='true'] .toggle-switch-input:disabled + .toggle-switch-label {
  color: rgba($lum-teal, 0.35);
}

// ── File tree — teal left-accent bar on selected item ─────────────────────

[data-lumiere='true'] .ide-redesign-main {
  // Override vars declared at this same scope in file-tree.scss and outline.scss
  // so the panel-group noise background shows through.
  --file-tree-bg: transparent;
  --outline-bg-color: transparent;
  --outline-container-color-bg: transparent;

  .file-tree:not(.multi-selected) ul.file-tree-list li.selected > .entity > .entity-name {
    box-shadow: inset 2px 0 0 $lum-teal;
  }

  // linked-file badge uses background-color: var(--file-tree-bg); give it a teal tint
  .linked-file-highlight {
    background-color: rgba($lum-teal, 0.18) !important;
    color: #0a4f43 !important;
  }

  // disconnected overlay would be invisible with transparent bg; restore a tinted fallback
  .disconnected-overlay {
    background-color: rgba(#f4fbf9, 0.92) !important;
  }
}

// ── Panel resize handles — thin teal line, no dot grips ───────────────────

[data-lumiere='true'] .horizontal-resize-handle {
  width: 4px !important;
  transition: background-color 0.15s ease;

  // Remove the dated dot-grip SVGs
  &::before,
  &::after {
    content: none !important;
  }

  &.horizontal-resize-handle-enabled:hover {
    background-color: rgba($lum-teal, 0.55);
  }
}

[data-lumiere='true'] .vertical-resize-handle {
  height: 4px;
  transition: background-color 0.15s ease;

  &::after {
    content: none !important;
  }

  &.vertical-resize-handle-enabled:hover {
    background-color: rgba($lum-teal, 0.55);
  }
}

// Collapse toggle pill — wider than the 4px handle so the arrow icon is visible
[data-lumiere='true'] .custom-toggler {
  width: 16px !important;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 4px;
  background-color: rgba($lum-teal, 0.65);

  &:hover {
    background-color: $lum-teal;
  }
}

// ── Mobile: scale up editor UI chrome so it's usable on a phone ───────────
// Bumps font-size tokens one step (12→14px, 14→16px, 16→18px) and increases
// the toolbar height. Scoped to .ide-redesign-main so only the editor page
// is affected. CodeMirror's own font size is controlled by user settings and
// is unaffected by these CSS custom properties.
//
// Two-condition query mirrors the JS dual-check in main-layout.tsx:
//   (max-width: 767px)              — standard mobile browsers
//   (pointer: coarse) and (…1024px) — Tor Browser spoofs viewport to ~980px
//                                     but does NOT spoof touch hardware

@media (max-width: 767px), (pointer: coarse) and (max-width: 1024px) {
  [data-lumiere='true'] .ide-redesign-main {
    --font-size-01: 0.875rem;  // 14px (was 12px)
    --font-size-02: 1rem;      // 16px (was 14px)
    --font-size-03: 1.125rem;  // 18px (was 16px)
    --toolbar-height: 48px;    // was 40px
    --toolbar-small-height: 40px; // was 32px

    // Prevent iOS/Android auto-zoom when tapping into the editor.
    // Browsers zoom any focused editable element whose font-size < 16px.
    // `max(1rem, 1em)` honours the user's size setting if it is already ≥ 16px.
    .cm-content {
      font-size: max(1rem, 1em) !important;
    }
  }
}