:root {
  --void: #0a0806;
  --tray: #14100c;
  --tray_edge: #2a2018;
  --amber: #e8a040;
  --amber_bright: #ff9933;
  --amber_dim: #c97820;
  --safe_glow: rgba(232, 160, 64, 0.14);
  --wet: #1c1612;
  --wet_highlight: rgba(255, 200, 120, 0.08);
  --text: #f2e6d4;
  --muted: #9a8470;
  --warn: #3a2410;
  --warn_edge: #c97820;
  --focus: #ff9933;
}

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

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: var(--void);
  color: var(--text);
  font-family: "Franklin Gothic Medium", "Arial Narrow", "Segoe UI", sans-serif;
  line-height: 1.45;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(900px 500px at 15% 0%, var(--safe_glow), transparent 65%),
    radial-gradient(700px 400px at 85% 100%, rgba(199, 120, 32, 0.08), transparent 60%);
}

[hidden] {
  display: none !important;
}

.darkroom {
  max-width: 1180px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.site_header {
  border-bottom: 1px solid var(--tray_edge);
  padding-bottom: 1.5rem;
  margin-bottom: 1.75rem;
}

.kicker {
  margin: 0 0 0.65rem;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber_dim);
}

h1 {
  margin: 0;
  font-family: Rockwell, "Courier New", Courier, serif;
  font-weight: 700;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  letter-spacing: -0.02em;
  line-height: 0.95;
  color: var(--amber_bright);
}

.lede {
  max-width: 36rem;
  margin: 0.9rem 0 0;
  color: var(--muted);
}

.status_message {
  margin: 0 0 1rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--warn_edge);
  background: var(--warn);
  color: var(--text);
}

.drop_stage {
  position: relative;
  min-height: 22rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--tray_edge);
  background:
    linear-gradient(180deg, var(--wet_highlight), transparent 40%),
    linear-gradient(var(--tray_edge), var(--tray_edge)) inset 0 0 0 1px,
    var(--tray);
  box-shadow:
    inset 0 1px 0 rgba(255, 200, 120, 0.06),
    inset 0 -12px 24px rgba(0, 0, 0, 0.45);
  cursor: pointer;
}

.drop_stage.is_dragging {
  border-color: var(--amber);
  box-shadow:
    inset 0 0 0 1px var(--amber_dim),
    0 0 28px var(--safe_glow);
}

.tray_rim {
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(232, 160, 64, 0.12);
  pointer-events: none;
}

.drop_stage_copy {
  text-align: center;
  padding: 1.5rem;
}

.drop_stage_title {
  margin: 0;
  font-family: Rockwell, "Courier New", Courier, serif;
  font-size: 1.85rem;
  color: var(--text);
}

.drop_stage_hint {
  margin: 0.45rem 0 1.2rem;
  color: var(--muted);
}

.file_input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  border: 0;
}

.choose_file_button {
  display: inline-block;
  padding: 0.55rem 1rem;
  border: 1px solid var(--amber_dim);
  background: transparent;
  color: var(--amber);
  font: inherit;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 1.25rem;
  align-items: start;
}

.preview_pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.preview_frame {
  margin: 0;
}

.preview_frame figcaption {
  margin-bottom: 0.4rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.preview_surface {
  display: grid;
  place-items: center;
  min-height: 18rem;
  border: 1px solid var(--tray_edge);
  overflow: hidden;
}

.wet_print {
  background:
  linear-gradient(135deg, var(--wet_highlight), transparent 55%),
  linear-gradient(180deg, #221a14 0%, var(--wet) 100%);
  box-shadow:
    inset 0 2px 8px rgba(0, 0, 0, 0.5),
    inset 0 -1px 0 rgba(255, 200, 120, 0.05);
}

.preview_surface img {
  display: block;
  max-width: 100%;
  max-height: 28rem;
}

.file_strip {
  display: flex;
  gap: 0.5rem;
  list-style: none;
  margin: 0.9rem 0 0;
  padding: 0;
  overflow-x: auto;
}

.file_strip button {
  min-width: 4.5rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--tray_edge);
  background: var(--tray);
  color: var(--muted);
  cursor: pointer;
  text-align: left;
  font: inherit;
  font-size: 0.75rem;
}

.file_strip button.is_active {
  border-color: var(--amber_dim);
  background: var(--amber_dim);
  color: var(--void);
}

.developer_tray {
  background:
    linear-gradient(180deg, rgba(255, 200, 120, 0.04), transparent 30%),
    var(--tray);
  border: 1px solid var(--tray_edge);
  padding: 1.15rem 1.05rem 1.25rem;
  box-shadow:
    inset 0 1px 0 rgba(255, 200, 120, 0.05),
    inset 0 -8px 20px rgba(0, 0, 0, 0.35);
}

.tray_note {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.4;
}

.readout {
  display: grid;
  gap: 0.7rem;
  margin: 1.15rem 0 0;
  border-top: 1px solid var(--tray_edge);
  padding-top: 1rem;
}

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

.readout dt {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.readout dd {
  margin: 0;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

.action_row {
  display: grid;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.primary_button,
.secondary_button,
.ghost_button {
  font: inherit;
  cursor: pointer;
  padding: 0.7rem 0.85rem;
}

.primary_button {
  border: 0;
  background: var(--amber_dim);
  color: var(--void);
  font-weight: 600;
}

.secondary_button,
.ghost_button {
  border: 1px solid var(--tray_edge);
  background: transparent;
  color: var(--text);
}

.primary_button:disabled,
.secondary_button:disabled {
  opacity: 0.45;
  cursor: wait;
}

.primary_button:focus-visible,
.secondary_button:focus-visible,
.ghost_button:focus-visible,
.choose_file_button:focus-visible,
.file_input:focus-visible,
.file_strip button:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

@media (max-width: 860px) {
  .workspace,
  .preview_pair {
    grid-template-columns: 1fr;
  }

  .preview_surface {
    min-height: 12rem;
  }

  .preview_surface img {
    max-height: 18rem;
  }
}