[hidden] {
  display: none !important;
}

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

:root {
  color-scheme: light;
  --metal-dark: #2a3540;
  --metal-mid: #3d4f5f;
  --metal-light: #5a6d7d;
  --metal-edge: #1e2830;
  --fluoro: #f4f7fa;
  --fluoro-dim: #d8e0e8;
  --ink: #1a2229;
  --ink-soft: #4a5c6b;
  --tick: #8a9bab;
  --accent: #3b7dd8;
  --accent-dark: #2a5fa8;
  --danger: #c0392b;
  --focus: #2563eb;
  --tabular: "Consolas", "Liberation Mono", "Courier New", monospace;
}

html {
  font-size: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background:
    linear-gradient(180deg, var(--metal-edge) 0%, var(--metal-dark) 12%, #334352 100%);
  color: var(--ink);
  line-height: 1.45;
}

.desk_shell {
  width: min(100%, 62rem);
  margin: 0 auto;
  padding: 0 0.85rem 2.5rem;
}

.ruler_strip {
  height: 1.1rem;
  margin: 0 -0.85rem 0;
  background:
  repeating-linear-gradient(
    90deg,
    var(--tick) 0,
    var(--tick) 1px,
    transparent 1px,
    transparent 8px
  ),
  repeating-linear-gradient(
    90deg,
    var(--metal-light) 0,
    var(--metal-light) 1px,
    transparent 1px,
    transparent 32px
  ),
  var(--metal-mid);
  border-bottom: 2px solid var(--metal-edge);
}

.desk_header {
  margin: 0;
  padding: 1.1rem 1rem 1rem;
  background: var(--fluoro);
  border: 1px solid var(--metal-light);
  border-top: none;
  box-shadow: 0 3px 0 var(--metal-edge);
}

.desk_label {
  margin: 0;
  font-family: "Arial Narrow", "Franklin Gothic Medium", "Nimbus Sans Narrow", sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

h1 {
  margin: 0.35rem 0 0;
  font-family: Impact, "Arial Black", "Franklin Gothic Heavy", sans-serif;
  font-size: clamp(2rem, 6vw, 2.85rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1;
  text-transform: uppercase;
  color: var(--ink);
}

.desk_lede {
  max-width: 36rem;
  margin: 0.65rem 0 0;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

main {
  margin-top: 0;
}

.status_line {
  margin: 0.75rem 0 0;
  padding: 0.55rem 0.75rem;
  background: #fdecea;
  border: 1px solid #e8b4b0;
  color: var(--danger);
  font-size: 0.9rem;
}

.file_input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.intake_slot {
  margin-top: 0;
  padding: 2rem 1.25rem;
  background: var(--metal-mid);
  border: 1px solid var(--metal-light);
  border-top: none;
  cursor: pointer;
  transition: background 0.12s ease;
}

.intake_slot.is_dragging {
  background: #4a6275;
  outline: 2px dashed var(--fluoro);
  outline-offset: -6px;
}

.intake_copy {
  max-width: 28rem;
  margin: 0 auto;
  text-align: center;
  color: var(--fluoro);
}

.intake_title {
  margin: 0;
  font-family: "Arial Narrow", "Franklin Gothic Medium", sans-serif;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.intake_hint {
  margin: 0.5rem 0 0;
  font-size: 0.88rem;
  color: var(--fluoro-dim);
}

.pick_button {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.55rem 1.1rem;
  background: var(--fluoro);
  border: 1px solid var(--metal-edge);
  color: var(--ink);
  font-family: "Arial Narrow", "Franklin Gothic Medium", sans-serif;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}

.pick_button:hover {
  background: #fff;
}

.work_surface {
  display: grid;
  gap: 0;
  background: var(--fluoro);
  border: 1px solid var(--metal-light);
  border-top: none;
}

.preview_row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-bottom: 1px solid var(--metal-light);
}

@media (max-width: 640px) {
  .preview_row {
    grid-template-columns: 1fr;
  }
}

.light_table {
  margin: 0;
  padding: 0.85rem;
  border-right: 1px solid var(--metal-light);
}

.light_table:last-child {
  border-right: none;
}

@media (max-width: 640px) {
  .light_table {
    border-right: none;
    border-bottom: 1px solid var(--metal-light);
  }

  .light_table:last-child {
    border-bottom: none;
  }
}

.light_table figcaption {
  margin-bottom: 0.45rem;
  font-family: "Arial Narrow", "Franklin Gothic Medium", sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.preview_well {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 10rem;
  max-height: 16rem;
  padding: 0.5rem;
  background: #e8edf2;
  border: 1px solid var(--metal-light);
  overflow: hidden;
}

.preview_well.checkerboard {
  background-color: #e8edf2;
  background-image:
    linear-gradient(45deg, #d0d8e0 25%, transparent 25%),
    linear-gradient(-45deg, #d0d8e0 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #d0d8e0 75%),
    linear-gradient(-45deg, transparent 75%, #d0d8e0 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}

.preview_well img {
  display: block;
  max-width: 100%;
  max-height: 15rem;
  width: auto;
  height: auto;
  object-fit: contain;
}

.pixel_readout,
.file_readout {
  margin: 0.4rem 0 0;
  font-family: var(--tabular);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

.file_readout {
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.file_strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0;
  padding: 0.55rem 0.75rem;
  list-style: none;
  background: var(--metal-dark);
  border-bottom: 1px solid var(--metal-edge);
}

.file_strip button {
  padding: 0.3rem 0.55rem;
  background: var(--metal-mid);
  border: 1px solid var(--metal-light);
  color: var(--fluoro-dim);
  font-family: "Arial Narrow", "Franklin Gothic Medium", sans-serif;
  font-size: 0.78rem;
  cursor: pointer;
  max-width: 12rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file_strip button.is_active {
  background: var(--fluoro);
  color: var(--ink);
  border-color: var(--fluoro);
}

.control_panel {
  padding: 1rem;
  background:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 7px,
      rgba(90, 109, 125, 0.08) 7px,
      rgba(90, 109, 125, 0.08) 8px
    ),
    #eef2f6;
  border-top: 3px solid var(--metal-mid);
}

fieldset {
  margin: 0 0 0.85rem;
  padding: 0.55rem 0.65rem 0.65rem;
  border: 1px solid var(--metal-light);
  background: var(--fluoro);
}

legend {
  padding: 0 0.35rem;
  font-family: "Arial Narrow", "Franklin Gothic Medium", sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.mode_row,
.name_row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

.mode_choice,
.name_choice,
.toggle_label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: "Arial Narrow", "Franklin Gothic Medium", sans-serif;
  font-size: 0.88rem;
  cursor: pointer;
}

.dimension_block,
.field_block {
  margin-bottom: 0.75rem;
}

.field_label {
  display: block;
  margin-bottom: 0.3rem;
  font-family: "Arial Narrow", "Franklin Gothic Medium", sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.number_input {
  width: 100%;
  max-width: 10rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--metal-light);
  background: var(--fluoro);
  font-family: var(--tabular);
  font-size: 0.95rem;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

.number_input:focus {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
}

.toggle_row {
  margin-bottom: 0.75rem;
}

.field_header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.25rem;
}

.field_value {
  font-family: var(--tabular);
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
}

input[type="range"] {
  width: 100%;
  max-width: 18rem;
  accent-color: var(--accent);
}

.color_row {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

input[type="color"] {
  width: 2.5rem;
  height: 2rem;
  padding: 0;
  border: 1px solid var(--metal-light);
  background: transparent;
  cursor: pointer;
}

#background_value {
  font-family: var(--tabular);
  font-size: 0.85rem;
}

.field_note {
  margin: 0.4rem 0 0;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.size_delta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem;
  margin: 0 0 0.85rem;
  padding: 0.55rem 0.65rem;
  background: var(--metal-dark);
  color: var(--fluoro);
}

.size_delta div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.size_delta dt {
  font-family: "Arial Narrow", "Franklin Gothic Medium", sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fluoro-dim);
}

.size_delta dd {
  margin: 0;
  font-family: var(--tabular);
  font-size: 0.88rem;
  font-variant-numeric: tabular-nums;
}

.action_row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.primary_button,
.secondary_button,
.ghost_button {
  padding: 0.55rem 1rem;
  border: 1px solid var(--metal-edge);
  font-family: "Arial Narrow", "Franklin Gothic Medium", sans-serif;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
}

.primary_button {
  background: var(--accent);
  border-color: var(--accent-dark);
  color: #fff;
}

.primary_button:hover:not(:disabled) {
  background: var(--accent-dark);
}

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

.secondary_button {
  background: var(--metal-mid);
  color: var(--fluoro);
}

.secondary_button:hover:not(:disabled) {
  background: var(--metal-light);
}

.ghost_button {
  background: transparent;
  color: var(--ink-soft);
}

.ghost_button:hover {
  background: rgba(0, 0, 0, 0.05);
  color: var(--ink);
}

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

input[type="radio"],
input[type="checkbox"] {
  accent-color: var(--accent);
}