:root {
  --manila: #e8d4a8;
  --manila_dark: #c9a84c;
  --folder_body: #f3e2bc;
  --ledger_paper: #faf6eb;
  --ledger_line: #c5d4b8;
  --ink_pad: #b91c1c;
  --ink_pad_dark: #7f1d1d;
  --stamp_ink: #991b1b;
  --desk_wood: #6b4f2a;
  --desk_shadow: #4a3520;
  --typewriter: #1f2937;
  --muted: #5c5347;
  --focus: #1d4ed8;
}

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

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

body {
  background:
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 3px,
      rgba(74, 53, 32, 0.04) 3px,
      rgba(74, 53, 32, 0.04) 4px
    ),
    linear-gradient(180deg, #7a5a34 0%, var(--desk_wood) 12%, var(--desk_shadow) 100%);
  color: var(--typewriter);
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.45;
}

[hidden] {
  display: none !important;
}

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

.desk_surface {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

.desk_header {
  background: var(--ledger_paper);
  border: 2px solid var(--desk_shadow);
  border-bottom: 4px double var(--desk_shadow);
  padding: 1.25rem 1.35rem 1.1rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 6px 0 rgba(0, 0, 0, 0.18);
}

.form_number {
  margin: 0 0 0.4rem;
  font-family: "Courier New", Courier, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 {
  margin: 0;
  font-family: "Arial Narrow", "Franklin Gothic Medium", "Nimbus Sans Narrow", sans-serif;
  font-weight: 700;
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--desk_shadow);
}

.desk_note {
  margin: 0.65rem 0 0;
  max-width: 38rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.status_line {
  margin: 0 0 1rem;
  padding: 0.65rem 0.85rem;
  border: 2px solid var(--ink_pad_dark);
  background: #fee2e2;
  font-family: "Courier New", Courier, monospace;
  font-size: 0.88rem;
}

.intake_folder {
  position: relative;
  max-width: 36rem;
}

.folder_tab {
  display: inline-block;
  margin-left: 1.25rem;
  padding: 0.35rem 1.1rem 0.25rem;
  background: var(--manila_dark);
  border: 2px solid var(--desk_shadow);
  border-bottom: none;
  font-family: "Courier New", Courier, monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--desk_shadow);
}

.folder_body {
  background: var(--folder_body);
  border: 2px solid var(--desk_shadow);
  padding: 2.5rem 1.5rem 2rem;
  min-height: 16rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: background 0.15s ease, box-shadow 0.15s ease;
}

.intake_folder.is_dragging .folder_body {
  background: #f8ebd0;
  box-shadow: inset 0 0 0 3px var(--ink_pad);
}

.intake_title {
  margin: 0;
  font-family: "Arial Narrow", "Franklin Gothic Medium", sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.intake_hint {
  margin: 0 0 0.75rem;
  color: var(--muted);
  font-size: 0.92rem;
  max-width: 24rem;
}

.stamp_button {
  display: inline-block;
  padding: 0.65rem 1.2rem;
  border: 2px solid var(--ink_pad_dark);
  background: var(--ink_pad);
  color: #fff;
  font-family: "Courier New", Courier, monospace;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 3px 3px 0 var(--ink_pad_dark);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.stamp_button:hover {
  background: #dc2626;
}

.stamp_button:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--ink_pad_dark);
}

.stamp_button:focus-visible,
.plain_button:focus-visible,
.grid_button:focus-visible,
.tile_button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.work_desk {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.9fr);
  gap: 1.25rem;
  align-items: start;
}

.preview_panel,
.ledger_panel {
  background: var(--ledger_paper);
  border: 2px solid var(--desk_shadow);
  box-shadow: 0 5px 0 rgba(0, 0, 0, 0.15);
}

.preview_panel {
  padding: 0.85rem;
}

.panel_label {
  font-family: "Courier New", Courier, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.55rem;
}

.preview_window {
  min-height: 14rem;
  max-height: 70vh;
  overflow: auto;
  border: 1px solid var(--ledger_line);
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview_window img {
  display: block;
  max-width: 100%;
  height: auto;
}

.checkerboard {
  background-color: #fff;
  background-image:
    linear-gradient(45deg, #e5e7eb 25%, transparent 25%),
    linear-gradient(-45deg, #e5e7eb 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e5e7eb 75%),
    linear-gradient(-45deg, transparent 75%, #e5e7eb 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}

.file_readout {
  margin: 0.6rem 0 0;
  font-family: "Courier New", Courier, monospace;
  font-size: 0.78rem;
  color: var(--muted);
}

.ledger_panel {
  padding: 0;
  background:
    repeating-linear-gradient(
      transparent,
      transparent 27px,
      var(--ledger_line) 27px,
      var(--ledger_line) 28px
    ),
    var(--ledger_paper);
}

.ledger_header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--desk_shadow);
  background: var(--manila);
}

.ledger_title {
  font-family: "Arial Narrow", "Franklin Gothic Medium", sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.95rem;
}

.ledger_date {
  font-family: "Courier New", Courier, monospace;
  font-size: 0.72rem;
  color: var(--muted);
}

.ledger_section {
  margin: 0;
  padding: 0.85rem 1rem 1rem;
  border: none;
  border-bottom: 1px dashed var(--manila_dark);
}

.ledger_section legend {
  font-family: "Courier New", Courier, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--stamp_ink);
  padding: 0 0.25rem;
}

.toggle_row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
}

.toggle_row label {
  font-size: 0.9rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.field + .field {
  margin-top: 0.65rem;
}

.field_label {
  font-size: 0.82rem;
  font-weight: 600;
}

.field_pair {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
}

.field_value {
  font-family: "Courier New", Courier, monospace;
  font-size: 0.78rem;
  color: var(--muted);
}

.field_note {
  margin: 0;
  font-size: 0.78rem;
  color: var(--muted);
}

input[type="text"],
input[type="file"],
select {
  width: 100%;
  padding: 0.45rem 0.55rem;
  border: 1px solid #9ca3af;
  background: #fff;
  font: inherit;
  color: inherit;
}

input[type="color"] {
  width: 100%;
  height: 2.4rem;
  padding: 0.15rem;
  border: 1px solid #9ca3af;
  background: #fff;
  cursor: pointer;
}

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

.position_grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.35rem;
  margin: 0.5rem 0;
}

.grid_button,
.tile_button {
  padding: 0.5rem 0.35rem;
  border: 1px solid #9ca3af;
  background: #fff;
  font-family: "Courier New", Courier, monospace;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  color: var(--typewriter);
}

.grid_button:hover,
.tile_button:hover {
  background: #fef2f2;
}

.grid_button.is_active,
.tile_button.is_active {
  background: var(--ink_pad);
  border-color: var(--ink_pad_dark);
  color: #fff;
}

.tile_button {
  width: 100%;
  margin-top: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.action_row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.75rem;
}

.plain_button {
  padding: 0.65rem 1rem;
  border: 2px solid var(--desk_shadow);
  background: var(--manila);
  font-family: "Courier New", Courier, monospace;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}

.plain_button:hover {
  background: #f5deb3;
}

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

  .preview_window {
    max-height: 50vh;
  }
}

@media (max-width: 480px) {
  .desk_surface {
    padding: 1rem 0.65rem 2rem;
  }

  .folder_body {
    padding: 2rem 1rem 1.5rem;
  }

  .action_row {
    flex-direction: column;
  }

  .stamp_button,
  .plain_button {
    width: 100%;
    text-align: center;
  }
}