:root {
  --bg: #0f1419;
  --surface: #1a2332;
  --border: #2d3a4f;
  --text: #e8eef4;
  --muted: #8b9cb3;
  --accent: #5b9bd5;
  --accent-dim: #3d6f9f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.layout {
  display: grid;
  grid-template-columns: minmax(280px, 340px) 1fr;
  min-height: 100vh;
  gap: 0;
}

@media (max-width: 960px) {
  .layout {
    grid-template-columns: 1fr;
  }
}

.panel {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 1.25rem 1.5rem;
  overflow-y: auto;
}

@media (max-width: 960px) {
  .panel {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
}

.stage-wrap {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 1rem;
}

h1 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
  letter-spacing: -0.02em;
}

.sub {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0 0 1.25rem;
}

.sub--queue-heading {
  margin-top: 1rem;
  margin-bottom: 0.35rem;
}

.queue-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.5rem 0.75rem;
  margin-top: 0.25rem;
}

.queue-toolbar .sub--queue-heading {
  margin-top: 1rem;
  margin-bottom: 0.35rem;
}

.queue-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

button.ghost--sm {
  padding: 0.38rem 0.65rem;
  font-size: 0.8rem;
}

.dropzone {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 1.75rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  margin-bottom: 1rem;
}

.dropzone:hover,
.dropzone:focus-within,
.dropzone.dragover {
  border-color: var(--accent);
  background: rgba(91, 155, 213, 0.08);
}

.dropzone p {
  margin: 0;
  font-size: 0.9rem;
}

.dropzone .hint {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.35rem;
}

input[type="file"] {
  display: none;
}

label.btn-secondary {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  border-radius: 6px;
  background: var(--border);
  color: var(--text);
  cursor: pointer;
}

label.btn-secondary:hover {
  background: #3d4d66;
}

.field {
  margin-bottom: 1rem;
}

.field label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.field-hint {
  font-size: 0.75rem;
  color: var(--muted);
  margin: -0.5rem 0 0.75rem;
  line-height: 1.35;
}

.field-hint strong {
  font-weight: 600;
  color: var(--text);
}

select,
input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  cursor: pointer;
}

.check--spaced {
  margin-top: 0.5rem;
}

.check input {
  accent-color: var(--accent);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

button {
  font: inherit;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 0.875rem;
}

button.primary {
  background: var(--accent);
  color: #fff;
}

button.primary:hover:not(:disabled) {
  background: var(--accent-dim);
}

button.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

button.ghost:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.thumb-list {
  margin-top: 1rem;
  max-height: 220px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.thumb-row {
  display: flex;
  align-items: stretch;
  gap: 0.35rem;
  width: 100%;
}

.thumb {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.4rem;
  border-radius: 8px;
  border: 2px solid transparent;
  background: var(--bg);
  cursor: pointer;
  text-align: left;
  font: inherit;
  color: var(--text);
  flex: 1;
  min-width: 0;
}

.thumb-remove {
  flex-shrink: 0;
  width: 2.25rem;
  align-self: center;
  padding: 0;
  font: inherit;
  font-size: 1.35rem;
  line-height: 1;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.thumb-remove:hover {
  color: #f0b4b4;
  border-color: #8f4a4a;
  background: rgba(200, 80, 80, 0.12);
}

.thumb:hover {
  border-color: var(--border);
}

.thumb.active {
  border-color: var(--accent);
}

.thumb img {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
  flex-shrink: 0;
}

.thumb span {
  font-size: 0.8rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.device {
  position: relative;
  padding: 14px 12px 18px;
  background: linear-gradient(160deg, #252b35 0%, #151820 100%);
  border-radius: 20px;
  box-shadow:
    0 24px 48px rgba(0, 0, 0, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  max-width: min(100%, 320px);
}

.device-bezel {
  border-radius: 12px;
  overflow: hidden;
  background: #111;
  aspect-ratio: 480 / 800;
  width: 100%;
  max-height: 72vh;
  margin: 0 auto;
}

.device-bezel.device-bezel--landscape {
  aspect-ratio: 800 / 480;
}

.device-bezel.preview-pannable {
  cursor: grab;
  touch-action: none;
  user-select: none;
}

.device-bezel.preview-pannable.preview-dragging {
  cursor: grabbing;
}

.device-screen {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  image-rendering: auto;
  pointer-events: none;
}

.device-notch {
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  height: 5px;
  background: #0a0c10;
  border-radius: 3px;
  opacity: 0.85;
}

.spec-pill {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

.empty-stage {
  color: var(--muted);
  font-size: 0.95rem;
  text-align: center;
  padding: 3rem 1rem;
}