/* ============================================================
   Design tokens — dark cabaret / luxury beauty campaign
   ============================================================ */
:root {
  /* Background */
  --bg:            #0a0010;
  --bg-card:       rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.07);
  --bg-input:      rgba(0, 0, 0, 0.4);

  /* Borders */
  --border:        rgba(255, 255, 255, 0.08);
  --border-focus:  rgba(255, 80, 200, 0.6);

  /* Brand accents */
  --pink:    #ff0080;
  --fuchsia: #e800ff;
  --orange:  #ff6a00;
  --violet:  #7c00ff;
  --cyan:    #00e5ff;

  /* Gradients */
  --grad-brand:  linear-gradient(135deg, var(--pink) 0%, var(--fuchsia) 50%, var(--violet) 100%);
  --grad-subtle: linear-gradient(135deg, rgba(255,0,128,.15) 0%, rgba(124,0,255,.15) 100%);

  /* Text */
  --text:          #ffffff;
  --text-muted:    rgba(255, 255, 255, 0.45);
  --text-dim:      rgba(255, 255, 255, 0.25);

  /* Glows */
  --glow-pink:    0 0 40px rgba(255, 0, 128, 0.25);
  --glow-violet:  0 0 40px rgba(124, 0, 255, 0.25);
  --glow-focus:   0 0 0 2px rgba(255, 80, 200, 0.5);

  /* Geometry */
  --radius-card: 14px;
  --radius-btn:  8px;
  --radius-sm:   6px;

  /* Spacing */
  --header-h: 52px;
  --gap:      10px;
}

/* ============================================================
   Reset & base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
}

/* Atmospheric background — layered radial glows */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 15% 20%, rgba(255, 0, 128, 0.12) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 85% 10%, rgba(232, 0, 255, 0.10) 0%, transparent 70%),
    radial-gradient(ellipse 70% 60% at 50% 90%, rgba(124, 0, 255, 0.12) 0%, transparent 70%),
    radial-gradient(ellipse 40% 30% at 80% 70%, rgba(255, 106, 0, 0.07) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* Faint synthetic grid overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 0;
}

/* ============================================================
   App shell
   ============================================================ */
.app {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-rows: var(--header-h) 1fr;
  height: 100vh;
  overflow: hidden;
}

/* ============================================================
   Header
   ============================================================ */
.app-header {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,.35);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-mark {
  font-size: 18px;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-text {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-tagline {
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.header-actions { margin-left: auto; }

/* ============================================================
   Main layout: three panels with drag-resize handles
   ============================================================ */
/*
 * grid-template-columns is set via inline style in app.rs so
 * column widths are driven by Rust signals:
 *   "{picker}px 10px {flow}px 10px 1fr"
 */
.main-grid {
  display: grid;
  grid-template-rows: 1fr;
  padding: var(--gap);
  gap: 0;
  height: 100%;
  overflow: hidden;
}

/*
 * Panel columns. Grid items fill their cell automatically in both axes —
 * no height: 100% tricks required.
 */
.resize-col {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
  min-height: 0;
}

/* Panel inside must fill the column */
.resize-col > .panel {
  flex: 1;
  min-height: 0;
  width: 100%;
}

/* Drag handle column */
.resize-handle {
  cursor: col-resize;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
}

.resize-handle::after {
  content: '';
  width: 2px;
  height: 36px;
  border-radius: 1px;
  background: var(--border);
  transition: background 0.15s;
}

.resize-handle:hover::after {
  background: rgba(255, 0, 128, 0.5);
}

/* Suppress text selection and lock cursor while dragging */
.main-grid.is-resizing {
  cursor: col-resize;
  user-select: none;
}

.main-grid.is-resizing .resize-handle::after {
  background: rgba(255, 0, 128, 0.5);
}

/* ============================================================
   Panels (shared chrome)
   ============================================================ */
.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.panel-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ============================================================
   Operation picker
   ============================================================ */
.picker-panel { }

.picker-search {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.search-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 12px;
  padding: 6px 10px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}

.search-input::placeholder { color: var(--text-dim); }

.search-input:focus {
  border-color: var(--border-focus);
  box-shadow: var(--glow-focus);
}

.picker-list {
  flex: 1;
  overflow-y: auto;
  padding: 6px 0;
}

.picker-list::-webkit-scrollbar { width: 4px; }
.picker-list::-webkit-scrollbar-track { background: transparent; }
.picker-list::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,.12);
  border-radius: 4px;
}

.picker-category { margin-bottom: 4px; }

.category-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 8px 14px 4px;
}

.picker-op {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 12px;
  padding: 6px 14px;
  cursor: pointer;
  border-radius: 0;
  transition: background .12s, color .12s;
}

.picker-op:hover {
  background: var(--bg-card-hover);
  color: var(--pink);
}

/* ============================================================
   Flow editor
   ============================================================ */
.flow-panel { }

.flow-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.flow-list::-webkit-scrollbar { width: 4px; }
.flow-list::-webkit-scrollbar-track { background: transparent; }
.flow-list::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,.12);
  border-radius: 4px;
}

.flow-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 6px;
  color: var(--text-dim);
  font-size: 12px;
  text-align: center;
  padding: 24px;
}

.flow-empty .muted { color: var(--text-dim); font-size: 11px; }

.flow-step {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0;
  margin-bottom: 4px;
  cursor: grab;
  transition: border-color .12s, box-shadow .12s, opacity .12s;
  user-select: none;
  overflow: hidden;
}

.step-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
}

.flow-step:hover {
  border-color: rgba(255,255,255,.14);
  box-shadow: var(--glow-violet);
}

.flow-step.step-error {
  border-color: rgba(255,60,60,.5);
  box-shadow: 0 0 20px rgba(255,60,60,.15);
}

.flow-step.step-generating {
  border-color: rgba(255, 180, 0, 0.4);
  box-shadow: 0 0 20px rgba(255, 180, 0, 0.1);
  animation: step-generating-pulse 1.8s ease-in-out infinite;
}

@keyframes step-generating-pulse {
  0%, 100% { border-color: rgba(255, 180, 0, 0.3); }
  50%       { border-color: rgba(255, 180, 0, 0.7); }
}

/* Dragging: dim the item being dragged */
.flow-step.step-dragging {
  opacity: 0.4;
  cursor: grabbing;
}

/* Drop target highlight */
.flow-step.step-drag-over {
  border-color: var(--pink);
  box-shadow: 0 0 14px rgba(255, 0, 128, 0.35);
}

.step-drag-handle {
  font-size: 14px;
  color: var(--text-dim);
  cursor: grab;
  line-height: 1;
  padding: 0 2px;
  flex-shrink: 0;
}

.step-index {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-dim);
  min-width: 16px;
}

.step-name {
  flex: 1;
  font-size: 12px;
  font-weight: 500;
}

.step-remove {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  padding: 0 2px;
  transition: color .12s;
  flex-shrink: 0;
}

.step-remove:hover { color: var(--pink); }

/* ---- Step params ---- */
.step-params {
  padding: 0 10px 8px 36px; /* indent to align under step name */
  display: flex;
  flex-direction: column;
  gap: 5px;
  border-top: 1px solid rgba(255,255,255,.04);
  padding-top: 6px;
}

.param-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.param-label {
  font-size: 10px;
  color: var(--text-muted);
  min-width: 72px;
  flex-shrink: 0;
  text-align: right;
}

.param-input,
.param-select {
  flex: 1;
  min-width: 0;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-family: 'Fira Code', 'Cascadia Code', monospace;
  font-size: 11px;
  padding: 3px 7px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  /* Suppress browser autofill / system styling */
  appearance: none;
  -webkit-appearance: none;
  color-scheme: dark;
}

.param-input:focus,
.param-select:focus {
  border-color: var(--border-focus);
  box-shadow: var(--glow-focus);
}

.param-select {
  cursor: pointer;
  font-family: inherit;
  /* Remove the native arrow so we can draw our own */
  appearance: none;
  -webkit-appearance: none;
  /* Chevron drawn as an inline SVG background — matches --text-muted colour */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='rgba(255,255,255,0.45)'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 8px 5px;
  padding-right: 24px; /* room for the arrow */
  /* Let the browser know this is a dark control so the native option list
     uses a dark background on browsers that respect color-scheme */
  color-scheme: dark;
}

.param-toggle {
  accent-color: var(--pink);
  width: 14px;
  height: 14px;
  cursor: pointer;
}

/* ---- Save-bar ---- */
.save-bar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 0, 128, 0.04);
  flex-shrink: 0;
}

.save-name-input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 12px;
  padding: 4px 8px;
  outline: none;
  min-width: 0;
  transition: border-color .15s, box-shadow .15s;
}

.save-name-input::placeholder { color: var(--text-dim); }

.save-name-input:focus {
  border-color: var(--border-focus);
  box-shadow: var(--glow-focus);
}

/* ---- Saved flows section ---- */
.saved-flows-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-top: 1px solid var(--border);
  cursor: pointer;
  flex-shrink: 0;
  transition: background .12s;
}

.saved-flows-header:hover { background: var(--bg-card-hover); }

.saved-count {
  font-size: 10px;
  font-weight: 700;
  background: var(--pink);
  color: #fff;
  border-radius: 8px;
  padding: 0 5px;
  line-height: 15px;
}

.saved-toggle-arrow {
  margin-left: auto;
  font-size: 9px;
  color: var(--text-dim);
}

.saved-flows-list {
  overflow-y: auto;
  max-height: 160px;
  padding: 4px 8px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.saved-flows-list::-webkit-scrollbar { width: 4px; }
.saved-flows-list::-webkit-scrollbar-track { background: transparent; }
.saved-flows-list::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,.12);
  border-radius: 4px;
}

.saved-flows-empty {
  text-align: center;
  color: var(--text-dim);
  font-size: 11px;
  padding: 12px 0;
}

.saved-flow-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 4px;
  border-radius: var(--radius-sm);
  transition: background .1s;
}

.saved-flow-item:hover { background: var(--bg-card-hover); }

.saved-flow-name {
  flex: 1;
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

.flow-footer {
  padding: 8px 14px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  flex-shrink: 0;
}

.status-ok    { color: var(--cyan); }
.status-error { color: #ff4444; }

/* ============================================================
   IO panel
   ============================================================ */
.io-panel { }

.io-section {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

.io-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.io-meta {
  font-size: 10px;
  color: var(--text-dim);
}

.io-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: rgba(0,0,0,.2);
}

.io-textarea {
  flex: 1;
  resize: none;
  background: var(--bg-input);
  border: none;
  color: var(--text);
  font-family: 'Fira Code', 'Cascadia Code', 'JetBrains Mono', monospace;
  font-size: 12px;
  line-height: 1.6;
  padding: 12px 14px;
  outline: none;
  min-height: 0;
}

.io-textarea::placeholder { color: var(--text-dim); }
.io-textarea:focus { box-shadow: inset 0 0 0 1px var(--border-focus); }

.io-output-text {
  background: rgba(0,0,0,.5);
  color: rgba(255,255,255,.85);
}

.io-error {
  background: rgba(80,0,0,.4) !important;
  color: #ff8080 !important;
}

/* ============================================================
   Step breakdown
   ============================================================ */
.step-breakdown {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,.2);
  overflow-y: auto;
  max-height: 180px;
  padding: 6px 0;
}

.breakdown-step {
  padding: 6px 14px;
  border-bottom: 1px solid var(--border);
}

.breakdown-step:last-child { border-bottom: none; }

.breakdown-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.breakdown-content {
  font-family: 'Fira Code', 'Cascadia Code', monospace;
  font-size: 11px;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 60px;
  overflow: hidden;
}

.breakdown-error .breakdown-label { color: #ff6060; }
.breakdown-error .breakdown-content { color: #ff8080; }

/* ============================================================
   Buttons (shared)
   ============================================================ */
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .06em;
  padding: 4px 10px;
  transition: border-color .12s, color .12s, background .12s;
}

.btn-ghost:hover {
  border-color: rgba(255,255,255,.2);
  color: var(--text);
  background: var(--bg-card-hover);
}

.btn-sm { padding: 3px 8px; font-size: 10px; }
.btn-xs { padding: 2px 6px; font-size: 10px; }

.btn-ghost:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* ============================================================
   AI flow step — model status bar
   ============================================================ */
.step-ai-status {
  border-top: 1px solid var(--border);
}

.step-ai-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 5px 10px;
  font-size: 10px;
  color: var(--text-dim);
}

.step-ai-bar.step-ai-ready { color: var(--cyan); }
.step-ai-bar.step-ai-loading { color: var(--text-muted); }