/* ============================================================
   DITHERPUNK — Retro Futuristic UI
   ============================================================ */

:root {
  --bg: #0a0a0f;
  --bg-panel: #111827;
  --bg-panel2: #0d1520;
  --border: #1e2d40;
  --border-bright: #2a4060;
  --green: #00ff88;
  --green-dim: #00aa55;
  --cyan: #00d4ff;
  --amber: #ffaa00;
  --red: #ff4444;
  --text: #e8e8e8;
  --text-muted: #667788;
  --text-dim: #445566;
  --font-mono: 'Share Tech Mono', 'Courier New', monospace;
  --font-display: 'VT323', monospace;
  --panel-width: 320px;
  --glow-green: 0 0 8px #00ff88, 0 0 16px rgba(0,255,136,0.3);
  --glow-cyan: 0 0 8px #00d4ff, 0 0 16px rgba(0,212,255,0.3);
  --glow-amber: 0 0 8px #ffaa00, 0 0 16px rgba(255,170,0,0.3);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 13px;
  overflow: hidden;
}

/* Dot grid background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, #1a2a3a 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

/* ============================================================
   HEADER
   ============================================================ */
.app-header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 20px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  height: 48px;
  flex-shrink: 0;
}

.header-logo {
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 4px;
  color: var(--green);
  text-shadow: var(--glow-green);
}

.logo-bracket { color: var(--cyan); opacity: 0.7; }

.header-sub {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.header-status {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: var(--glow-green);
  animation: pulse-dot 2s ease-in-out infinite;
}

.status-dot.processing {
  background: var(--amber);
  box-shadow: var(--glow-amber);
  animation: pulse-fast 0.5s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

@keyframes pulse-fast {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

/* ============================================================
   MAIN LAYOUT
   ============================================================ */
.app-main {
  position: relative;
  z-index: 1;
  height: calc(100vh - 48px);
  overflow: hidden;
}

.app-main > .row {
  height: 100%;
}

/* ============================================================
   CONTROLS PANEL
   ============================================================ */
.controls-panel {
  width: var(--panel-width);
  min-width: var(--panel-width);
  max-width: var(--panel-width);
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  padding: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border-bright) transparent;
}

.controls-panel::-webkit-scrollbar { width: 4px; }
.controls-panel::-webkit-scrollbar-track { background: transparent; }
.controls-panel::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 2px; }

.ctrl-section {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

.ctrl-section-label {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ============================================================
   DROP ZONE
   ============================================================ */
.drop-zone {
  border: 1px dashed var(--border-bright);
  border-radius: 4px;
  padding: 20px 12px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--bg-panel2);
  position: relative;
}

.drop-zone:hover, .drop-zone:focus, .drop-zone.drag-over {
  border-color: var(--green);
  box-shadow: var(--glow-green);
  outline: none;
}

.drop-zone.drag-over { background: rgba(0,255,136,0.05); }

.drop-icon {
  font-size: 28px;
  color: var(--green-dim);
  margin-bottom: 6px;
  line-height: 1;
}

.drop-text {
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--text);
  margin-bottom: 4px;
}

.drop-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.drop-formats {
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 1px;
}

.image-info {
  margin-top: 8px;
  font-size: 10px;
  color: var(--green-dim);
  letter-spacing: 1px;
  text-align: center;
}

/* ============================================================
   SEGMENTED BUTTONS
   ============================================================ */
.segmented-group {
  display: flex;
  gap: 2px;
  background: var(--bg-panel2);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 2px;
}

.seg-btn {
  flex: 1;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  padding: 6px 4px;
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.15s;
  text-transform: uppercase;
}

.seg-btn:hover {
  color: var(--text);
  border-color: var(--border-bright);
}

.seg-btn.active {
  background: rgba(0,255,136,0.12);
  border-color: var(--green);
  color: var(--green);
  box-shadow: 0 0 6px rgba(0,255,136,0.2);
}

/* ============================================================
   CUSTOM SELECT
   ============================================================ */
.custom-select-wrap {
  position: relative;
}

.custom-select {
  width: 100%;
  background: var(--bg-panel2);
  border: 1px solid var(--border-bright);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 7px 10px;
  border-radius: 3px;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%2300d4ff'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.custom-select:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
}

.custom-select optgroup {
  color: var(--text-muted);
  font-size: 10px;
  background: var(--bg-panel);
}

.custom-select option {
  background: var(--bg-panel);
  color: var(--text);
  padding: 4px;
}

/* ============================================================
   SLIDERS
   ============================================================ */
.slider-row {
  margin-bottom: 14px;
}

.slider-row:last-child { margin-bottom: 0; }

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.slider-label {
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: default;
}

.slider-value {
  font-size: 12px;
  color: var(--amber);
  font-family: var(--font-mono);
  min-width: 36px;
  text-align: right;
}

.custom-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: var(--border-bright);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.custom-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  background: var(--green);
  border-radius: 2px;
  cursor: pointer;
  box-shadow: 0 0 6px rgba(0,255,136,0.5);
  transition: box-shadow 0.15s;
}

.custom-range::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: var(--green);
  border-radius: 2px;
  border: none;
  cursor: pointer;
  box-shadow: 0 0 6px rgba(0,255,136,0.5);
}

.custom-range:focus::-webkit-slider-thumb,
.custom-range:hover::-webkit-slider-thumb {
  box-shadow: var(--glow-green);
}

.custom-range::-webkit-slider-runnable-track {
  height: 4px;
  background: linear-gradient(to right, var(--green-dim) 0%, var(--green-dim) var(--pct, 50%), var(--border-bright) var(--pct, 50%));
  border-radius: 2px;
}

/* ============================================================
   FILM SIMULATION
   ============================================================ */
.film-load-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.film-nav-row {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 10px;
}

.film-nav-row .film-dropdown-wrap {
  flex: 1;
  margin-bottom: 0;
}

.film-nav-btn {
  flex-shrink: 0;
  padding: 7px 10px;
  font-size: 11px;
}

.film-fav-btn {
  flex-shrink: 0;
  padding: 7px 10px;
  font-size: 13px;
  border-color: var(--border-bright);
  color: var(--text-dim);
}

.film-fav-btn.starred {
  border-color: var(--amber);
  color: var(--amber);
  box-shadow: var(--glow-amber);
}

.film-load-status {
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 1px;
  flex: 1;
  text-align: right;
}

.film-dropdown-wrap {
  position: relative;
  margin-bottom: 10px;
}

.film-select-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-panel2);
  border: 1px solid var(--border-bright);
  border-radius: 3px;
  padding: 7px 10px;
  cursor: pointer;
  transition: all 0.2s;
  user-select: none;
}

.film-select-btn:hover, .film-select-btn:focus {
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
  outline: none;
}

.film-select-btn.open {
  border-color: var(--cyan);
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.film-selected-name {
  font-size: 12px;
  color: var(--text);
  letter-spacing: 1px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.film-arrow {
  font-size: 10px;
  color: var(--cyan);
  transition: transform 0.2s;
  flex-shrink: 0;
  margin-left: 6px;
}

.film-select-btn.open .film-arrow { transform: rotate(180deg); }

.film-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-panel);
  border: 1px solid var(--cyan);
  border-top: none;
  border-bottom-left-radius: 3px;
  border-bottom-right-radius: 3px;
  max-height: 220px;
  overflow-y: auto;
  z-index: 100;
  scrollbar-width: thin;
  scrollbar-color: var(--border-bright) transparent;
  animation: slideDown 0.15s ease-out;
}

.film-dropdown.open { display: block; }

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.film-dropdown::-webkit-scrollbar { width: 4px; }
.film-dropdown::-webkit-scrollbar-thumb { background: var(--border-bright); }

.film-dropdown-section-label {
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--cyan);
  padding: 6px 10px 3px;
  text-transform: uppercase;
  border-top: 1px solid var(--border);
}

.film-dropdown-section-label:first-child { border-top: none; }

.film-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  cursor: pointer;
  transition: background 0.1s;
  border-bottom: 1px solid rgba(30,45,64,0.5);
}

.film-option:hover, .film-option.selected {
  background: rgba(0,212,255,0.08);
}

.film-option.selected { color: var(--cyan); }

.film-option-swatch {
  display: flex;
  gap: 1px;
  flex-shrink: 0;
}

.film-swatch-color {
  width: 10px;
  height: 16px;
  border-radius: 1px;
}

.film-option-name {
  font-size: 11px;
  letter-spacing: 1px;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.film-star {
  font-size: 13px;
  color: var(--text-dim);
  cursor: pointer;
  padding: 2px;
  transition: color 0.15s, text-shadow 0.15s;
  flex-shrink: 0;
}

.film-star:hover { color: var(--amber); }
.film-star.starred {
  color: var(--amber);
  text-shadow: var(--glow-amber);
}

.film-dropdown-empty {
  padding: 12px 10px;
  font-size: 11px;
  color: var(--text-dim);
  text-align: center;
  letter-spacing: 1px;
}

/* Palette strip */
.palette-strip-wrap {
  margin-top: 6px;
}

.palette-strip {
  display: flex;
  height: 20px;
  border-radius: 2px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.palette-strip-swatch {
  flex: 1;
  min-width: 2px;
}

.palette-strip-label {
  font-size: 9px;
  color: var(--text-dim);
  letter-spacing: 1px;
  margin-top: 4px;
  text-align: center;
}

/* Film section disabled state */
#filmSection.disabled .film-select-btn,
#filmSection.disabled .film-load-row {
  opacity: 0.35;
  pointer-events: none;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-retro {
  background: transparent;
  border: 1px solid var(--green);
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  padding: 7px 14px;
  cursor: pointer;
  border-radius: 2px;
  text-transform: uppercase;
  transition: all 0.15s;
  position: relative;
  overflow: hidden;
}

.btn-retro::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--green);
  opacity: 0;
  transition: opacity 0.15s;
}

.btn-retro:hover {
  box-shadow: var(--glow-green);
  color: var(--bg);
}

.btn-retro:hover::before { opacity: 1; }
.btn-retro:hover span, .btn-retro:hover { color: var(--bg); }

.btn-retro:active { transform: scale(0.96); }

.btn-retro:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-retro.btn-secondary {
  border-color: var(--border-bright);
  color: var(--text-muted);
}

.btn-retro.btn-secondary:hover {
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
  color: var(--bg);
}

.btn-retro.btn-secondary:hover::before { background: var(--cyan); opacity: 1; }

.btn-retro.btn-sm {
  font-size: 10px;
  padding: 5px 10px;
  letter-spacing: 1px;
}

.action-row {
  display: flex;
  gap: 8px;
}

.action-row .btn-retro { flex: 1; }

/* ============================================================
   PREVIEW PANEL
   ============================================================ */
.preview-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
}

.preview-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
  flex-shrink: 0;
  gap: 12px;
  flex-wrap: wrap;
}

.view-toggle {
  display: flex;
  gap: 2px;
  background: var(--bg-panel2);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 2px;
}

.view-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.5px;
  padding: 5px 12px;
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.15s;
  text-transform: uppercase;
}

.view-btn:hover { color: var(--text); border-color: var(--border-bright); }

.view-btn.active {
  background: rgba(0,212,255,0.1);
  border-color: var(--cyan);
  color: var(--cyan);
}

.preview-meta {
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 1px;
  text-align: right;
}

/* ============================================================
   CANVAS CONTAINER
   ============================================================ */
.canvas-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  padding: 20px;
  position: relative;
}

.canvas-placeholder {
  text-align: center;
  color: var(--text-dim);
}

.placeholder-icon {
  font-size: 48px;
  margin-bottom: 12px;
  opacity: 0.3;
}

.placeholder-text {
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.canvas-view {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  width: 100%;
  height: 100%;
  overflow: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-bright) transparent;
}

/* Center the canvas-frame inside the view when it fits,
   but allow scrolling to all edges when it overflows.
   min-content sizing prevents flex from clipping the overflow. */
.canvas-view > .canvas-frame {
  margin: auto;
  flex-shrink: 0;
}

.canvas-view::-webkit-scrollbar { width: 6px; height: 6px; }
.canvas-view::-webkit-scrollbar-track { background: transparent; }
.canvas-view::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 3px; }

.canvas-frame {
  position: relative;
  border: 1px solid var(--border-bright);
  border-radius: 2px;
  overflow: hidden;
  line-height: 0;
}

.canvas-frame canvas {
  display: block;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  /* size is controlled by JS zoom logic */
}

/* Split view */
.split-view {
  gap: 8px;
  align-items: center;
}

.split-frame {
  position: relative;
  flex: 1;
  min-width: 0;          /* allow flex children to shrink */
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.split-frame .canvas-frame {
  max-width: 100%;
  max-height: 100%;
}

.split-frame .canvas-frame canvas {
  max-width: 100%;
  max-height: calc(100vh - 120px);
  width: auto;
  height: auto;
}

/* Processing state */
.canvas-frame.processing-active {
  animation: border-pulse 0.8s ease-in-out infinite;
}

@keyframes border-pulse {
  0%, 100% { border-color: var(--border-bright); box-shadow: none; }
  50% { border-color: var(--green); box-shadow: var(--glow-green); }
}

.processing-indicator {
  display: none;
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(10,10,15,0.85);
  border: 1px solid var(--green);
  color: var(--green);
  font-size: 10px;
  letter-spacing: 2px;
  padding: 4px 8px;
  border-radius: 2px;
  align-items: center;
  gap: 4px;
  z-index: 3;
}

.processing-indicator.visible { display: flex; }

.proc-dot {
  width: 5px;
  height: 5px;
  background: var(--green);
  border-radius: 50%;
  animation: proc-blink 0.8s ease-in-out infinite;
}

.proc-dot:nth-child(2) { animation-delay: 0.2s; }
.proc-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes proc-blink {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 1; }
}

.split-label {
  position: absolute;
  top: 6px;
  left: 6px;
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--text-muted);
  background: rgba(10,10,15,0.7);
  padding: 2px 6px;
  border-radius: 1px;
  z-index: 2;
}

.split-divider {
  width: 1px;
  background: var(--border-bright);
  align-self: stretch;
}

/* ============================================================
   INFO TOOLTIP
   ============================================================ */
.info-tip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid var(--text-dim);
  color: var(--text-dim);
  font-size: 9px;
  cursor: help;
  transition: all 0.15s;
  font-style: normal;
  flex-shrink: 0;
}

.info-tip:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.tooltip-popup {
  position: fixed;
  background: var(--bg-panel);
  border: 1px solid var(--cyan);
  color: var(--text);
  font-size: 11px;
  line-height: 1.5;
  padding: 8px 12px;
  border-radius: 3px;
  max-width: 220px;
  z-index: 10000;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  box-shadow: var(--glow-cyan);
}

.tooltip-popup.visible { opacity: 1; }

/* ============================================================
   ZOOM CONTROLS
   ============================================================ */
.zoom-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.zoom-btn {
  background: transparent;
  border: 1px solid var(--border-bright);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  padding: 3px 8px;
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.15s;
  line-height: 1.4;
}

.zoom-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 4px rgba(0,212,255,0.3);
}

.zoom-btn.active {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0,212,255,0.08);
}

.zoom-level {
  font-size: 10px;
  color: var(--amber);
  font-family: var(--font-mono);
  min-width: 38px;
  text-align: center;
  letter-spacing: 1px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 991px) {
  html, body { overflow: auto; }

  .app-main { height: auto; overflow: visible; }
  .app-main > .row { height: auto; flex-direction: column; }

  .controls-panel {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    height: auto;
    overflow: visible;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .preview-panel { height: 60vw; min-height: 300px; }

  .split-view { flex-direction: column; }
  .split-frame { max-width: 100%; }
  .split-divider { width: 100%; height: 1px; }
}

/* ============================================================
   v2.0 — HEADER ACTIONS, EFFECTS, RAMP, PRESETS, MODAL, TOAST
   ============================================================ */

.header-actions {
  display: flex;
  gap: 6px;
  margin-left: auto;
}

.hdr-btn {
  background: var(--bg-panel2);
  border: 1px solid var(--border-bright);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  padding: 5px 10px;
  cursor: pointer;
  transition: all 0.15s;
}
.hdr-btn:hover:not(:disabled) {
  color: var(--green);
  border-color: var(--green-dim);
  box-shadow: var(--glow-green);
}
.hdr-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.hdr-btn-accent { color: var(--amber); border-color: #5a4210; }
.hdr-btn-accent:hover:not(:disabled) {
  color: var(--amber);
  border-color: var(--amber);
  box-shadow: var(--glow-amber);
}

/* ── Generic control rows ── */
.ctrl-row { margin-bottom: 10px; }
.ctrl-row-label {
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 5px;
}

.segmented-wrap { flex-wrap: wrap; }

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 9px;
}
.toggle-label {
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--text-muted);
}
.toggle-btn {
  background: var(--bg-panel2);
  border: 1px solid var(--border-bright);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  padding: 3px 12px;
  min-width: 48px;
  cursor: pointer;
  transition: all 0.15s;
}
.toggle-btn.on {
  color: var(--green);
  border-color: var(--green-dim);
  box-shadow: inset 0 0 8px rgba(0,255,136,0.15);
}

.color-input {
  width: 42px;
  height: 22px;
  padding: 0;
  border: 1px solid var(--border-bright);
  background: transparent;
  cursor: pointer;
}

.seed-box { display: flex; align-items: center; gap: 8px; }
.seed-value {
  font-size: 10px;
  color: var(--cyan);
  min-width: 78px;
  text-align: right;
}

.btn-row {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.btn-row .btn-retro { flex: 1 1 auto; }

/* ── Effects stack ── */
.effect-stack { display: flex; flex-direction: column; gap: 6px; }

.effect-card {
  border: 1px solid var(--border);
  background: var(--bg-panel2);
  transition: border-color 0.15s, opacity 0.15s;
}
.effect-card.disabled { opacity: 0.42; }
.effect-card.effect-fixed { border-color: var(--green-dim); }

.effect-head {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 8px;
}
.effect-index {
  font-size: 9px;
  color: var(--text-dim);
  border: 1px solid var(--border-bright);
  width: 16px;
  height: 16px;
  line-height: 14px;
  text-align: center;
  flex-shrink: 0;
}
.effect-name {
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--text);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.effect-fixed .effect-name { color: var(--green); }
.effect-btns { display: flex; gap: 3px; flex-shrink: 0; }
.effect-btn {
  background: transparent;
  border: 1px solid var(--border-bright);
  color: var(--text-muted);
  font-size: 9px;
  width: 20px;
  height: 20px;
  line-height: 1;
  cursor: pointer;
  transition: all 0.15s;
}
.effect-btn:hover:not(:disabled) { color: var(--green); border-color: var(--green-dim); }
.effect-btn:disabled { opacity: 0.25; cursor: not-allowed; }

.effect-body {
  padding: 4px 8px 8px;
  border-top: 1px solid var(--border);
}
.effect-body .slider-row { margin-bottom: 7px; }
.effect-body .slider-row:last-child,
.effect-body .toggle-row:last-child { margin-bottom: 0; }

.add-effect-row {
  display: flex;
  gap: 5px;
  align-items: stretch;
  margin-top: 8px;
}
.add-effect-row .custom-select-wrap { flex: 1; }

/* ── Ramp builder ── */
.ramp-list { display: flex; flex-direction: column; gap: 4px; }
.ramp-row {
  display: flex;
  align-items: center;
  gap: 7px;
}
.ramp-hex {
  font-size: 10px;
  color: var(--text-muted);
  flex: 1;
}
.ramp-lum {
  font-size: 9px;
  color: var(--cyan);
  min-width: 44px;
  text-align: right;
}
.ramp-preview { margin-top: 9px; }
.ramp-preview { display: flex; flex-wrap: wrap; }
.ramp-swatch {
  height: 16px;
  flex: 1 1 12px;
  min-width: 8px;
  border: 1px solid rgba(0,0,0,0.35);
}
.ramp-preview .palette-strip-label { flex-basis: 100%; }

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(4,6,10,0.82);
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-box {
  background: var(--bg-panel);
  border: 1px solid var(--border-bright);
  box-shadow: 0 0 30px rgba(0,0,0,0.7);
  padding: 18px;
  width: min(560px, 92vw);
}
.modal-title {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--green);
  margin-bottom: 12px;
}
.modal-input, .modal-textarea {
  width: 100%;
  background: var(--bg-panel2);
  border: 1px solid var(--border-bright);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 8px;
  outline: none;
}
.modal-input:focus, .modal-textarea:focus { border-color: var(--green-dim); }
.modal-textarea { resize: vertical; line-height: 1.45; }
.modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 12px;
}

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: var(--bg-panel);
  border: 1px solid var(--green-dim);
  color: var(--green);
  font-size: 11px;
  letter-spacing: 1px;
  padding: 9px 18px;
  z-index: 300;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  box-shadow: var(--glow-green);
}
.toast.visible { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ============================================================
   COLOUR PICKER + BYPASS
   ============================================================ */

.color-swatch {
  width: 42px;
  height: 22px;
  flex-shrink: 0;
  border: 1px solid var(--border-bright);
  padding: 0;
  cursor: pointer;
  transition: box-shadow 0.15s, border-color 0.15s;
}
.color-swatch:hover { border-color: var(--green-dim); }
.color-swatch.swatch-active {
  border-color: var(--green);
  box-shadow: var(--glow-green);
}

.cp-popover {
  position: fixed;
  z-index: 400;
  width: 196px;
  padding: 10px;
  background: var(--bg-panel);
  border: 1px solid var(--border-bright);
  box-shadow: 0 8px 28px rgba(0,0,0,0.75);
}

.cp-sv {
  position: relative;
  width: 100%;
  height: 112px;
  cursor: crosshair;
  touch-action: none;
  border: 1px solid var(--border);
}
.cp-sv-layer { position: absolute; inset: 0; pointer-events: none; }
.cp-sv-white { background: linear-gradient(to right, #fff, rgba(255,255,255,0)); }
.cp-sv-black { background: linear-gradient(to top, #000, rgba(0,0,0,0)); }
.cp-sv-handle {
  position: absolute;
  width: 12px;
  height: 12px;
  margin: -6px 0 0 -6px;
  border: 2px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.6);
  pointer-events: none;
}

.cp-hue {
  position: relative;
  height: 14px;
  margin-top: 9px;
  cursor: pointer;
  touch-action: none;
  border: 1px solid var(--border);
  background: linear-gradient(to right,
    #f00 0%, #ff0 17%, #0f0 33%, #0ff 50%, #00f 67%, #f0f 83%, #f00 100%);
}
.cp-hue-handle {
  position: absolute;
  top: -2px;
  width: 6px;
  height: calc(100% + 4px);
  margin-left: -3px;
  background: #fff;
  border: 1px solid rgba(0,0,0,0.7);
  pointer-events: none;
}

.cp-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 9px;
}
.cp-preview {
  width: 24px;
  height: 22px;
  flex-shrink: 0;
  border: 1px solid var(--border-bright);
}
.cp-hex {
  flex: 1;
  min-width: 0;
  background: var(--bg-panel2);
  border: 1px solid var(--border-bright);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 5px;
  outline: none;
}
.cp-hex:focus { border-color: var(--green-dim); }
.cp-done { flex-shrink: 0; }

.btn-danger {
  color: var(--amber);
  border-color: #5a4210;
  width: 100%;
}
.btn-danger:hover {
  color: var(--amber);
  border-color: var(--amber);
  box-shadow: var(--glow-amber);
}

/* Bypass is a loud state — a passthrough render must never be mistaken
   for a broken one. */
.status-dot.bypassed {
  background: var(--amber);
  box-shadow: var(--glow-amber);
}

/* While a slider is being dragged its value hasn't been committed yet —
   tint the readout so it's clear the preview hasn't caught up. */
.slider-dragging .slider-value { color: var(--cyan); }