/* ============================================================
 * DubStubs — stylesheet
 * Extracted from inline <style> for the deployment build.
 * ============================================================ */

:root {
  --bg: #0a0b0e;
  --bg-2: #101216;
  --panel: rgba(255, 255, 255, 0.03);
  --panel-solid: #14161b;
  --panel-2: rgba(255, 255, 255, 0.05);
  --hover: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-2: rgba(255, 255, 255, 0.14);
  --text: #fafafa;
  --text-2: #d4d4d8;
  --muted: #71717a;
  --muted-2: #52525b;
  --accent: #f5d547;
  --accent-glow: rgba(245, 213, 71, 0.18);
  --accent-2: #6aa9ff;
  --accent-2-glow: rgba(106, 169, 255, 0.18);
  --danger: #f87171;
  --danger-glow: rgba(248, 113, 113, 0.15);
  --safe: #4ade80;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --shadow-1: 0 1px 0 rgba(255,255,255,0.04) inset, 0 1px 2px rgba(0,0,0,0.3);
  --shadow-2: 0 12px 40px rgba(0,0,0,0.5), 0 4px 12px rgba(0,0,0,0.3);
  --shadow-glow: 0 0 0 1px var(--accent-glow), 0 6px 20px var(--accent-glow);
  --easing: cubic-bezier(0.32, 0.72, 0, 1);
}

* { box-sizing: border-box; }
::selection { background: var(--accent); color: #000; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 10px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.15); border: 2px solid transparent; background-clip: content-box; }

html, body { margin: 0; padding: 0; height: 100%; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}
body::before {
  content: "";
  position: fixed;
  inset: -200px;
  background:
    radial-gradient(circle at 20% 0%, rgba(245, 213, 71, 0.05), transparent 40%),
    radial-gradient(circle at 80% 100%, rgba(106, 169, 255, 0.05), transparent 40%);
  z-index: 0;
  pointer-events: none;
}

/* ============ HEADER ============ */
header.app-header {
  position: relative;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 16px;
  background: rgba(10, 11, 14, 0.7);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--border);
  height: 56px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: -0.01em;
}
.brand .logo {
  width: 30px; height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent) 0%, #e8c63a 100%);
  color: #000;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 13px;
  font-family: 'Space Grotesk', sans-serif;
  box-shadow: 0 4px 14px rgba(245, 213, 71, 0.25);
}
.brand .v-tag {
  font-size: 10px;
  color: var(--muted);
  background: var(--panel-2);
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid var(--border);
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
}

.design-name-input {
  flex: 1;
  max-width: 360px;
  margin: 0 auto;
  text-align: center;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text);
  padding: 6px 12px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  border-radius: 8px;
  transition: background .15s, border-color .15s;
  min-width: 0;
}
.design-name-input:hover { background: var(--panel-2); }
.design-name-input:focus { outline: none; background: var(--panel-2); border-color: var(--border-2); }

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

/* ============ BUTTONS ============ */
.btn {
  --btn-bg: var(--panel-2);
  --btn-fg: var(--text);
  --btn-bd: var(--border);
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-bd);
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s var(--easing);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  line-height: 1;
  box-shadow: var(--shadow-1);
}
.btn:hover { background: var(--hover); border-color: var(--border-2); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 2px; }
.btn .icon { width: 14px; height: 14px; flex-shrink: 0; }
.btn.primary {
  --btn-bg: var(--accent);
  --btn-fg: #000;
  --btn-bd: var(--accent);
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(245, 213, 71, 0.25), 0 1px 0 rgba(255,255,255,0.4) inset;
}
.btn.primary:hover { background: #f3d138; border-color: #f3d138; }
.btn.ghost { background: transparent; border-color: transparent; }
.btn.ghost:hover { background: var(--panel-2); }
.btn.danger { color: var(--danger); }
.btn.danger:hover { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn.icon-only { padding: 7px; width: 32px; height: 32px; justify-content: center; }
.btn.small { padding: 5px 9px; font-size: 12px; height: 28px; }

.seg {
  display: inline-flex;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2px;
  gap: 2px;
}
.seg button {
  background: transparent;
  border: none;
  color: var(--muted);
  padding: 5px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: all .15s var(--easing);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.seg button:hover { color: var(--text); }
.seg button.active { background: var(--panel-2); color: var(--text); box-shadow: var(--shadow-1); }

/* ============ APP LAYOUT ============ */
main.app {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 64px 1fr 340px;
  height: calc(100vh - 56px);
}

/* ============ LEFT RAIL ============ */
nav.rail {
  background: var(--bg-2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 0;
  gap: 4px;
}
nav.rail .rail-btn {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all .15s var(--easing);
  position: relative;
}
nav.rail .rail-btn:hover { background: var(--panel-2); color: var(--text); }
nav.rail .rail-btn.active { color: var(--text); background: var(--panel-2); }
nav.rail .rail-btn.active::before {
  content: "";
  position: absolute;
  left: -12px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 18px;
  background: var(--accent);
  border-radius: 0 2px 2px 0;
}
nav.rail .rail-btn .icon { width: 20px; height: 20px; }
nav.rail .rail-btn[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--panel-solid);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 11px;
  white-space: nowrap;
  pointer-events: none;
  z-index: 200;
  box-shadow: var(--shadow-2);
}
nav.rail .rail-spacer { flex: 1; }

/* ============ CANVAS ============ */
.canvas-wrap {
  overflow: auto;
  padding: 32px;
  background:
    radial-gradient(ellipse at center, rgba(255,255,255,0.02) 0%, transparent 60%),
    var(--bg);
  background-image:
    radial-gradient(ellipse at center, rgba(255,255,255,0.02) 0%, transparent 60%),
    linear-gradient(rgba(255,255,255,0.012) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.012) 1px, transparent 1px);
  background-size: auto, 28px 28px, 28px 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 14px;
  position: relative;
}
.canvas-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.canvas-meta .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--safe); box-shadow: 0 0 8px var(--safe); }

.ticket-frame {
  position: relative;
  width: 100%;
  max-width: 1100px;
  aspect-ratio: 2.81 / 1;
}
.ticket-scaler {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 8px;
}
.ticket {
  /* Fixed design-canvas size — CSS transform scales the whole thing uniformly
     so layout never reflows, only zooms. This is how Figma/Canva work. */
  position: relative;
  width: 1300px;
  height: 462.6px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-2);
  user-select: none;
  -webkit-user-select: none;
  background: #fff;
  touch-action: none;
  transform-origin: center center;
  flex-shrink: 0;
}
.ticket .bg-color {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 1;
}
.ticket .bg-image {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: 2;
  pointer-events: none;
}
.ticket .photo-layer { position: absolute; z-index: 3; pointer-events: none; }
.ticket .fields {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 5;
}

/* ============ FIELDS ============ */
.field {
  position: absolute;
  cursor: grab;
  padding: 1px 3px;
  transform-origin: center center;
  line-height: 1.05;
  transition: outline-color .12s, box-shadow .12s;
  outline: 1.5px solid transparent;
  outline-offset: 2px;
  border-radius: 2px;
}
.field:hover { outline-color: rgba(106, 169, 255, 0.45); }
.field.selected {
  outline-color: var(--accent-2);
  outline-style: solid;
  cursor: grab;
}
.field.selected:active, .field:active { cursor: grabbing; }
.field.editing { cursor: text !important; outline-color: var(--accent); }
.field.locked { cursor: not-allowed; }
.field.locked:hover { outline-color: var(--muted-2); }

.field-text {
  display: block;
  background: transparent;
  border: none;
  outline: none;
  font-family: inherit;
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
  letter-spacing: inherit;
  text-align: inherit;
  padding: 0;
  margin: 0;
  white-space: pre-wrap;
  overflow: visible;
  min-width: 8px;
  min-height: 8px;
}
.field.editing .field-text { background: rgba(245, 213, 71, 0.15); cursor: text; }

/* Visual field types (barcode, perforation) */
.field-vis { width: 100%; height: 100%; pointer-events: none; }
.field.type-barcode .field-vis {
  background-image: repeating-linear-gradient(
    90deg,
    currentColor 0, currentColor 1px,
    transparent 1px, transparent 3px,
    currentColor 3px, currentColor 5px,
    transparent 5px, transparent 6px,
    currentColor 6px, currentColor 9px,
    transparent 9px, transparent 11px,
    currentColor 11px, currentColor 12px,
    transparent 12px, transparent 14px,
    currentColor 14px, currentColor 17px,
    transparent 17px, transparent 18px
  );
}
.field.type-perforation .field-vis {
  border-left: 2px dashed currentColor;
  opacity: 0.45;
}

/* Floating field bubble */
.field-bubble {
  position: absolute;
  left: 50%;
  top: -12px;
  transform: translate(-50%, -100%);
  background: var(--panel-solid);
  border: 1px solid var(--border-2);
  border-radius: 8px;
  padding: 4px;
  display: none;
  align-items: center;
  gap: 2px;
  box-shadow: var(--shadow-2);
  z-index: 50;
  white-space: nowrap;
  font-size: 11px;
}
.field.selected .field-bubble { display: flex; }
.field-bubble button {
  background: transparent;
  border: none;
  color: var(--text-2);
  width: 26px; height: 26px;
  border-radius: 5px;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background .12s;
}
.field-bubble button:hover { background: var(--panel-2); color: var(--text); }
.field-bubble button.danger:hover { background: var(--danger); color: #fff; }
.field-bubble .sep { width: 1px; height: 16px; background: var(--border); margin: 0 2px; }
.field-bubble .role-label {
  color: var(--muted);
  padding: 0 8px 0 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ============ RIGHT PANEL ============ */
aside.panel {
  background: var(--bg-2);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.panel-header {
  padding: 16px 20px 12px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}
.panel-header h3 {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.panel-header .panel-sub {
  font-size: 11px;
  color: var(--muted);
  font-weight: 400;
}
.panel-body { padding: 4px 20px 24px; }

.panel-section {
  border-top: 1px solid var(--border);
  padding: 16px 0;
}
/* The first section in a pane sits directly under the panel-header,
   which already provides the divider line — so just drop the duplicate. */
.panel-section:first-child { border-top: none; padding-top: 16px; }
.panel-section h4 {
  margin: 0 0 12px;
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}
.row > label {
  font-size: 11px;
  color: var(--muted);
  width: 56px;
  flex-shrink: 0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 500;
}
.input, .row input[type="text"], .row input[type="number"], .row select, .row textarea {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  padding: 7px 10px;
  font-family: inherit;
  font-size: 12px;
  transition: border-color .12s, background .12s;
  min-width: 0;
}
.row input:hover, .row select:hover { border-color: var(--border-2); }
.row input:focus, .row select:focus { outline: none; border-color: var(--accent-2); background: var(--bg-2); }
.row input[type="number"] { max-width: 78px; font-family: 'JetBrains Mono', monospace; font-size: 11px; }
.row textarea { resize: vertical; min-height: 56px; font-family: inherit; }

.slider-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.slider-row label {
  font-size: 11px;
  color: var(--muted);
  width: 56px;
  flex-shrink: 0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 500;
}
.slider-row .slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  height: 22px;
  cursor: pointer;
}
.slider-row .slider::-webkit-slider-runnable-track {
  height: 4px;
  background: var(--border);
  border-radius: 4px;
}
.slider-row .slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px; height: 14px;
  background: var(--text);
  border-radius: 50%;
  border: 2px solid var(--bg);
  margin-top: -5px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.4);
  transition: transform .12s;
}
.slider-row .slider::-webkit-slider-thumb:hover { transform: scale(1.15); }
.slider-row .slider::-moz-range-track { height: 4px; background: var(--border); border-radius: 4px; }
.slider-row .slider::-moz-range-thumb { width: 14px; height: 14px; background: var(--text); border-radius: 50%; border: 2px solid var(--bg); }
.slider-row .slider-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  min-width: 38px;
  text-align: right;
}

input[type="color"] {
  width: 28px; height: 28px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--bg);
  cursor: pointer;
  padding: 0;
  overflow: hidden;
}
input[type="color"]::-webkit-color-swatch { border: none; border-radius: 5px; }
input[type="color"]::-webkit-color-swatch-wrapper { padding: 2px; }

.swatches {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 4px;
  margin-bottom: 8px;
}
.swatch {
  aspect-ratio: 1;
  border-radius: 6px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: transform .12s;
  position: relative;
}
.swatch:hover { transform: scale(1.1); border-color: var(--text); }

/* ============ THEMES ============ */
.theme-list { display: flex; flex-direction: column; gap: 8px; }
.theme-card {
  cursor: pointer;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  background: var(--panel);
  transition: border-color .15s, transform .12s, background .15s;
  display: flex;
  align-items: center;
  gap: 12px;
}
.theme-card:hover { border-color: var(--border-2); background: var(--panel-2); }
.theme-card.active { border-color: var(--accent-2); background: var(--accent-2-glow); }
.theme-thumb,
.sample-thumb {
  width: 80px;
  height: 28px;
  aspect-ratio: 2.81 / 1;
  border-radius: 4px;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0,0,0,0.4);
}
.theme-thumb {
  background-size: cover;
  background-position: center;
}
.theme-info { flex: 1; min-width: 0; }
.theme-info .theme-name { font-size: 13px; font-weight: 600; }
.theme-info .theme-desc { font-size: 11px; color: var(--muted); margin-top: 2px; }

/* ============ FIELD LIST ============ */
.field-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 220px;
  overflow-y: auto;
  margin: 0 -4px;
}
.field-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 10px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  text-align: left;
  color: var(--text-2);
  font-family: inherit;
  transition: all .12s var(--easing);
  width: calc(100% - 0px);
}
.field-chip:hover { background: var(--panel-2); color: var(--text); }
.field-chip.selected { background: var(--accent-2-glow); border-color: var(--accent-2); color: var(--text); }
.field-chip .chip-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.field-chip .chip-role { font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--muted); flex-shrink: 0; }

/* ============ SAVED ============ */
.saved-list { display: flex; flex-direction: column; gap: 4px; }
.saved-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 12px;
}
.saved-item .saved-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 500; }
.saved-item .saved-date { font-size: 10px; color: var(--muted); font-family: 'JetBrains Mono', monospace; }
.saved-actions { display: flex; gap: 2px; }

.empty-msg {
  color: var(--muted);
  font-size: 12px;
  text-align: center;
  padding: 24px 12px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  background: var(--panel);
}
.empty-msg .empty-icon { font-size: 24px; margin-bottom: 6px; opacity: 0.4; display: block; }

/* ============ MODAL ============ */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.6);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.modal-backdrop.open { display: flex; animation: fadeIn .15s var(--easing); }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.modal {
  background: var(--panel-solid);
  border: 1px solid var(--border-2);
  border-radius: 14px;
  padding: 24px;
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-2);
  animation: slideUp .2s var(--easing);
}
.modal h3 { margin: 0 0 6px; font-size: 17px; font-weight: 600; letter-spacing: -0.02em; }
.modal .modal-sub { color: var(--muted); font-size: 13px; line-height: 1.5; margin: 0 0 16px; }
.modal textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 12px;
  font-family: inherit;
  font-size: 13px;
  line-height: 1.5;
  resize: vertical;
  min-height: 100px;
  transition: border-color .12s;
}
.modal textarea:focus { outline: none; border-color: var(--accent-2); }
.modal .help-block {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
  margin-top: 14px;
}
.modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ============ TOAST ============ */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(120px);
  background: var(--panel-solid);
  border: 1px solid var(--border-2);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 500;
  transition: transform .25s var(--easing);
  z-index: 2000;
  pointer-events: none;
  box-shadow: var(--shadow-2);
  display: flex;
  align-items: center;
  gap: 8px;
}
.toast.show { transform: translateX(-50%) translateY(0); }
.toast .toast-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--safe); }

kbd {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 1px 5px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--text-2);
}

/* ============ MOBILE ============ */
.panel-toggle-mobile {
  display: none;
  position: fixed;
  bottom: 16px;
  right: 16px;
  z-index: 50;
  border-radius: 50%;
  width: 52px; height: 52px;
  padding: 0;
  box-shadow: 0 6px 20px rgba(0,0,0,0.5);
}

@media (max-width: 1024px) {
  main.app { grid-template-columns: 56px 1fr 300px; }
}
@media (max-width: 768px) {
  main.app { grid-template-columns: 1fr; height: calc(100vh - 56px); }
  nav.rail { display: none; }
  aside.panel {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    max-height: 65vh;
    border-left: none;
    border-top: 1px solid var(--border-2);
    border-radius: 16px 16px 0 0;
    background: var(--bg-2);
    z-index: 40;
    transform: translateY(calc(100% - 48px));
    transition: transform .25s var(--easing);
    box-shadow: 0 -10px 30px rgba(0,0,0,0.4);
  }
  aside.panel.open { transform: translateY(0); }
  aside.panel::before {
    content: "";
    position: absolute;
    top: 8px; left: 50%;
    transform: translateX(-50%);
    width: 36px; height: 4px;
    border-radius: 2px;
    background: var(--border-2);
  }
  .panel-handle {
    display: block !important;
    padding: 16px 20px 8px;
    cursor: pointer;
    text-align: center;
    font-size: 13px;
    font-weight: 600;
  }
  .canvas-wrap { padding: 16px; padding-bottom: 80px; }
}
.panel-handle { display: none; }

.hidden { display: none !important; }

.helper {
  font-size: 11px;
  color: var(--muted);
  margin: 6px 0 0;
  line-height: 1.5;
}

/* ============ BG IMAGE PREVIEW ============
   Reuses .theme-card / .theme-thumb directly so visual styling is identical
   to the Themes panel. Only the wrapper + action row need their own rules. */
.bg-preview {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 8px;
}
.bg-preview-actions {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.bg-preview-actions .btn {
  flex: 1;
  min-width: 0;
  justify-content: center;
}

/* ============ SAMPLES GALLERY ============ */
/* Mirrors the theme-card layout for visual consistency */
.samples-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.sample-card {
  cursor: pointer;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  background: var(--panel);
  transition: border-color .15s, transform .12s, background .15s;
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: inherit;
  text-align: left;
  color: inherit;
  width: 100%;
}
.sample-card:hover {
  border-color: var(--border-2);
  background: var(--panel-2);
  transform: translateY(-1px);
}
.sample-thumb {
  width: 80px;
  min-width: 80px;
  max-width: 80px;
  height: 28px;
  min-height: 28px;
  max-height: 28px;
  background: var(--bg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sample-thumb > img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: cover;
  display: block;
  flex: 0 0 100%;
}
.sample-missing {
  font-size: 9px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  padding: 4px;
  text-align: center;
  line-height: 1.3;
  word-break: break-word;
}
.sample-info {
  flex: 1;
  min-width: 0;
}
.sample-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}
.sample-desc {
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============ LIGHTBOX ============ */
#lightbox.modal-backdrop { padding: 32px; }
.lightbox-content {
  position: relative;
  max-width: 1200px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  gap: 14px;
  animation: slideUp .2s var(--easing);
}
.lightbox-content img {
  width: 100%;
  height: auto;
  max-height: calc(90vh - 120px);
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}
.lightbox-close {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--panel-solid);
  border: 1px solid var(--border-2);
  font-size: 22px;
  line-height: 1;
  z-index: 10;
}
.lightbox-caption {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 0 4px;
}
.lightbox-meta { flex: 1; min-width: 200px; }
.lightbox-meta h3 {
  margin: 0 0 4px;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}
.lightbox-meta p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  max-width: 700px;
}
.lightbox-actions { flex-shrink: 0; }