/**
 * Noisemaker CPU Demo — Layout & Structure
 *
 * Adapted from ../noisemaker/demo/shaders/layout.css: the fixed left rail +
 * centered canvas shell, collapsible panels, connected effect "chain", and
 * mobile divider. Trimmed of the shaders demo's animation / media / mesh
 * chrome (this demo has no realtime playback), and extended with the pipeline
 * render-settings, per-filter actions, native control styling, DSL editor,
 * error banner, and render overlay. Consumes handfish `--hf-*` tokens.
 */

body {
  overflow: hidden;
  width: 100vw;
  height: 100vh;
}

#app-container {
  position: relative;
  width: 100vw;
  height: 100vh;
}

/* ---------- Canvas ---------- */

#canvas-container {
  position: fixed;
  top: 0;
  left: calc(500px + 3rem);
  width: calc(100vw - 500px - 3rem);
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  box-sizing: border-box;
}

#canvas {
  width: min(calc(100vw - 540px - 4rem), calc(100vh - 4rem));
  height: min(calc(100vw - 540px - 4rem), calc(100vh - 4rem));
  border: 1px solid var(--hf-accent-2, #1f2842);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  image-rendering: pixelated;
  /* Checkerboard to show alpha transparency */
  background:
    repeating-conic-gradient(
      color-mix(in srgb, var(--hf-bg-surface, #101522) 60%, var(--hf-bg-base, #07090d) 40%) 0% 25%,
      color-mix(in srgb, var(--hf-bg-elevated, #1b2538) 50%, var(--hf-bg-surface, #101522) 50%) 0% 50%
    )
    50% / 20px 20px;
}

/* ---------- Left rail ---------- */

#left-panel {
  position: fixed;
  top: 1rem;
  left: 1rem;
  bottom: 1rem;
  width: 500px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0;
  background: transparent;
  z-index: 1000;
}

#left-panel::-webkit-scrollbar {
  width: 0.5rem;
}
#left-panel::-webkit-scrollbar-track {
  background: color-mix(in srgb, var(--hf-accent, #a5b8ff) 5%, transparent 95%);
  border-radius: var(--hf-radius-sm, 0.375rem);
}
#left-panel::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--hf-accent, #a5b8ff) 30%, transparent 70%);
  border-radius: var(--hf-radius-sm, 0.375rem);
}
#left-panel::-webkit-scrollbar-thumb:hover {
  background: color-mix(in srgb, var(--hf-accent, #a5b8ff) 50%, transparent 50%);
}

/* ---------- Panels ---------- */

.shader-effect {
  overflow: visible;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

/* Raise stacking when a dropdown inside is open so it isn't clipped */
.shader-effect:has(effect-select.open),
.shader-effect:has(select-dropdown.dropdown-open) {
  z-index: 100;
}

.effect-title {
  background: color-mix(in srgb, var(--hf-accent-1, #141a2d) var(--hf-header-opacity, 80%), transparent var(--hf-header-transparency, 20%));
  border-bottom: 1px solid var(--hf-border, #26314f);
  padding: var(--hf-space-2, 0.5rem) var(--hf-space-3, 0.75rem);
  font-size: var(--hf-size-sm, 0.8125rem);
  font-weight: var(--hf-weight-bold, 700);
  color: var(--hf-text-bright, #f6f8ff);
  text-transform: var(--hf-text-transform, lowercase);
  letter-spacing: var(--hf-tracking-wide, 0.03em);
  user-select: none;
  display: flex;
  align-items: center;
  gap: var(--hf-space-2, 0.5rem);
  cursor: pointer;
  transition: background var(--hf-transition, 0.15s ease);
}

.effect-title:hover {
  background: color-mix(in srgb, var(--hf-accent-1, #141a2d) calc(var(--hf-header-opacity, 80%) + 5%), transparent calc(var(--hf-header-transparency, 20%) - 5%));
}

.effect-title::before {
  content: '▼';
  font-size: 0.65rem;
  transition: transform 0.2s ease;
  order: -1;
}

.shader-effect.collapsed .effect-title::before {
  transform: rotate(-90deg);
}

.effect-content {
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  overflow: visible;
}

.shader-effect.collapsed .effect-content {
  display: none;
}

/* Skipped filter */
.shader-effect.skipped {
  opacity: 0.55;
}
.shader-effect.skipped .effect-title-text {
  text-decoration: line-through;
  color: color-mix(in srgb, var(--hf-text-dim, #98a7c8) 60%, transparent 40%);
}

/* Header action buttons sit at the right of the title */
.effect-title .effect-actions {
  display: flex;
  gap: 0.25rem;
  align-items: center;
}
.effect-title .hf-action-btn {
  cursor: pointer;
}
.effect-actions .hf-action-btn.active {
  color: var(--hf-accent, #a5b8ff);
  font-weight: var(--hf-weight-bold, 700);
}

/* ---------- Effect chain (generator + filters touch, rounded ends) ---------- */

#effect-controls-container {
  display: flex;
  flex-direction: column;
  gap: 0;
}
#effect-controls-container .shader-effect {
  border-radius: 0;
  border-bottom: none;
}
#effect-controls-container .shader-effect:first-child {
  border-top-left-radius: var(--hf-radius, 0.5rem);
  border-top-right-radius: var(--hf-radius, 0.5rem);
}
#effect-controls-container .shader-effect:last-child {
  border-bottom-left-radius: var(--hf-radius, 0.5rem);
  border-bottom-right-radius: var(--hf-radius, 0.5rem);
  border-bottom: 1px solid var(--hf-border, #26314f);
}

/* ---------- Controls ---------- */

.controls-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.4rem 0.6rem;
}

.controls-grid:empty::after {
  content: 'no parameters';
  grid-column: 1 / -1;
  font-size: var(--hf-size-xs, 0.6875rem);
  color: var(--hf-text-dim, #98a7c8);
  font-style: italic;
}

.controls-grid .control-group {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr) 35px;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
}

.control-label {
  font-size: var(--hf-size-sm, 0.8125rem);
  color: color-mix(in srgb, var(--hf-text-normal, #d9deeb) 85%, var(--hf-accent, #a5b8ff) 15%);
  text-transform: lowercase;
  letter-spacing: 0.03em;
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.control-value {
  font-size: var(--hf-size-xs, 0.6875rem);
  font-family: var(--hf-font-family-mono, ui-monospace, monospace);
  color: color-mix(in srgb, var(--hf-text-dim, #98a7c8) 90%, var(--hf-accent, #a5b8ff) 10%);
  text-align: left;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.control-widget { width: 100%; min-width: 0; }
slider-value.control-widget { display: block; }
select-dropdown.control-widget { display: block; }
toggle-switch.control-widget { justify-self: start; }

/* Native fallbacks + globals, styled to the design system */
input[type="range"].hf-range {
  width: 100%;
  height: 1.125rem;
  -webkit-appearance: none;
  appearance: none;
  background: color-mix(in srgb, var(--hf-accent, #a5b8ff) 15%, transparent 85%);
  border-radius: var(--hf-radius-sm, 0.375rem);
  outline: none;
  cursor: pointer;
}
input[type="range"].hf-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 0.875rem;
  height: 0.875rem;
  border-radius: 50%;
  background: var(--hf-accent, #a5b8ff);
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}
input[type="range"].hf-range::-moz-range-thumb {
  width: 0.875rem;
  height: 0.875rem;
  border: none;
  border-radius: 50%;
  background: var(--hf-accent, #a5b8ff);
  cursor: pointer;
}

select.hf-select,
input.hf-number,
input.hf-input {
  width: 100%;
  font: inherit;
  font-size: var(--hf-size-sm, 0.8125rem);
  color: var(--hf-text-bright, #f6f8ff);
  background: color-mix(in srgb, var(--hf-bg-base, #07090d) 60%, transparent 40%);
  border: 1px solid var(--hf-border, #26314f);
  border-radius: var(--hf-radius-sm, 0.375rem);
  padding: 0.25rem 0.4rem;
  box-sizing: border-box;
}
select.hf-select:focus,
input.hf-number:focus,
input.hf-input:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--hf-accent, #a5b8ff) 50%, transparent 50%);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--hf-accent, #a5b8ff) 20%, transparent 80%);
}

input[type="color"].hf-color {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 1.6rem;
  padding: 0;
  border: 1px solid color-mix(in srgb, var(--hf-accent, #a5b8ff) 35%, transparent 65%);
  border-radius: var(--hf-radius-sm, 0.375rem);
  background: transparent;
  cursor: pointer;
}
input[type="color"].hf-color::-webkit-color-swatch-wrapper { padding: 2px; }
input[type="color"].hf-color::-webkit-color-swatch { border: none; border-radius: calc(var(--hf-radius-sm, 0.375rem) - 2px); }
input[type="color"].hf-color::-moz-color-swatch { border: none; border-radius: calc(var(--hf-radius-sm, 0.375rem) - 2px); }

.vector-inputs {
  display: flex;
  gap: 0.3rem;
}
.vector-inputs .hf-number { width: 100%; }

/* ---------- Render settings (header) ---------- */

.render-settings {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 0.75rem;
}
.render-settings .setting {
  display: grid;
  grid-template-columns: 3rem 1fr;
  align-items: center;
  gap: 0.4rem;
}
.render-settings .setting:last-child {
  grid-column: 1 / -1;
}
.setting-label {
  font-size: var(--hf-size-sm, 0.8125rem);
  color: var(--hf-text-dim, #98a7c8);
  text-transform: lowercase;
}
.seed-controls {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.3rem;
  align-items: center;
}
.time-control {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.time-control .control-value {
  min-width: 2.2rem;
}

/* ---------- Add-effect ---------- */

#add-effect-panel .effect-content { padding: 0.5rem; }
#add-effect { display: block; width: 100%; }

/* ---------- DSL editor ---------- */

.dsl-editor {
  width: 100%;
  min-height: 8rem;
  resize: vertical;
  font-family: var(--hf-font-family-mono, ui-monospace, monospace);
  font-size: var(--hf-size-xs, 0.6875rem);
  line-height: 1.5;
  color: var(--hf-text-bright, #f6f8ff);
  background: color-mix(in srgb, var(--hf-bg-base, #07090d) 80%, transparent 20%);
  border: 1px solid var(--hf-border, #26314f);
  border-radius: var(--hf-radius-sm, 0.375rem);
  padding: 0.6rem;
  box-sizing: border-box;
  tab-size: 2;
}
.dsl-editor:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--hf-accent, #a5b8ff) 50%, transparent 50%);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--hf-accent, #a5b8ff) 20%, transparent 80%);
}
.dsl-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}
.dsl-actions .hf-btn { flex: 0 0 auto; }
#dsl-revert { display: none; }
body.raw-dsl #dsl-revert { display: inline-flex; }

/* ---------- Canvas overlays ---------- */

#loadingOverlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: none;
  padding: 0.4rem 0.75rem;
  border-radius: var(--hf-radius-sm, 0.375rem);
  background: color-mix(in srgb, var(--hf-bg-base, #07090d) 75%, transparent 25%);
  backdrop-filter: blur(4px);
  color: var(--hf-accent, #a5b8ff);
  font-size: var(--hf-size-xs, 0.6875rem);
  font-variant-numeric: tabular-nums;
  z-index: 5;
  pointer-events: none;
}
body.rendering #loadingOverlay { display: block; }

#errorBanner {
  position: absolute;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%);
  display: none;
  max-width: min(90%, 420px);
  padding: 0.6rem 0.9rem;
  border-radius: var(--hf-radius-sm, 0.375rem);
  background: color-mix(in srgb, var(--hf-red, #ff5b6b) 14%, var(--hf-bg-base, #07090d) 86%);
  border: 1px solid color-mix(in srgb, var(--hf-red, #ff5b6b) 45%, transparent 55%);
  color: color-mix(in srgb, var(--hf-red, #ff5b6b) 40%, var(--hf-text-bright, #f6f8ff) 60%);
  font-size: var(--hf-size-xs, 0.6875rem);
  white-space: pre-wrap;
  z-index: 10;
  box-shadow: 0 0 12px color-mix(in srgb, var(--hf-red, #ff5b6b) 30%, transparent 70%);
}
#errorBanner:not(:empty) { display: block; }

/* ---------- Status toast ---------- */

#status,
.status {
  position: fixed;
  bottom: 16px;
  right: 16px;
  background: var(--hf-bg-base, #07090d);
  border: 1px solid var(--hf-border, #26314f);
  padding: 8px 12px;
  font-size: var(--hf-size-xs, 0.6875rem);
  font-family: var(--hf-font-family-mono, ui-monospace, monospace);
  color: var(--hf-text-dim, #98a7c8);
  max-width: 340px;
  z-index: 1000;
  box-shadow: var(--hf-shadow-sm, 0 2px 8px rgba(0, 0, 0, 0.3));
  border-radius: var(--hf-radius-sm, 0.375rem);
}
#status.error { color: var(--hf-red, #ff5b6b); border-color: var(--hf-red, #ff5b6b); }

/* ---------- Loading ---------- */

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  font-size: var(--hf-size-sm, 0.8125rem);
  color: var(--hf-text-dim, #98a7c8);
}

/* ---------- Ecosystem footer ---------- */

.noisemaker-info {
  font-size: var(--hf-size-xs, 0.6875rem);
  color: color-mix(in srgb, var(--hf-text-dim, #98a7c8) 60%, transparent 40%);
  line-height: 1.4;
  padding: 0.5rem 0.5rem 0.75rem;
  text-align: center;
}
.noisemaker-info a { color: var(--hf-accent, #a5b8ff); text-decoration: none; }
.noisemaker-info a:hover { opacity: 0.8; }

/* ---------- Mobile ---------- */

@media (max-width: 960px) {
  body { height: 100dvh; }

  #app-container {
    display: flex !important;
    flex-direction: column !important;
    height: 100dvh;
  }

  #canvas-container {
    position: relative !important;
    left: 0 !important;
    top: 0 !important;
    width: 100% !important;
    height: calc(100dvh * var(--mobile-canvas-fraction, 0.4)) !important;
    padding: 0 !important;
    flex-shrink: 0 !important;
    order: -1;
  }

  #canvas {
    max-width: 100% !important;
    max-height: 100% !important;
    width: auto !important;
    height: auto !important;
    border: none !important;
    box-shadow: none !important;
  }

  #mobile-divider {
    height: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: row-resize;
    touch-action: none;
    user-select: none;
    flex-shrink: 0;
  }
  #mobile-divider::after {
    content: '';
    width: 40px;
    height: 4px;
    border-radius: 2px;
    background: var(--hf-accent, #a5b8ff);
  }

  #left-panel {
    position: relative !important;
    top: 0 !important;
    left: 0 !important;
    bottom: auto !important;
    width: 100% !important;
    flex: 1;
    min-height: 0;
    padding: 0.5rem;
  }

  .render-settings { grid-template-columns: 1fr; }
  .render-settings .setting:last-child { grid-column: auto; }
  .controls-grid { grid-template-columns: 1fr; }

  #status, .status { position: relative; bottom: auto; right: auto; max-width: none; }
  .loading { height: calc(100dvh * var(--mobile-canvas-fraction, 0.4)); }
}

@media (min-width: 961px) {
  #mobile-divider { display: none; }
}