:root {
  --paper: #ddd0b8;
  --paper_hot: #ebe2cf;
  --paper_line: #b9a88d;
  --crate: #3a2f24;
  --crate_dark: #241c15;
  --ink: #1a1510;
  --ink_soft: #4a4035;
  --seal_red: #9b1c1c;
  --seal_red_dark: #6f1212;
  --stencil: #d8c7a8;
  --steel: #6a6258;
  --focus: #c44b2d;
  --match: #1f5f32;
  --match_bg: #d8e8dc;
  --mismatch: #7a1414;
  --mismatch_bg: #f0d4d4;
  --invalid_bg: #efe6cf;
}

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

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

body {
  color: var(--ink);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  line-height: 1.45;
  background:
    repeating-linear-gradient(
      135deg,
      rgba(36, 28, 21, 0.08) 0 2px,
      transparent 2px 18px
    ),
    linear-gradient(180deg, #5f564c 0%, #4a433c 100%);
}

[hidden] {
  display: none !important;
}

.dock {
  max-width: 760px;
  margin: 0 auto;
  min-height: 100vh;
  background: var(--paper);
  box-shadow:
    0 0 0 1px var(--crate_dark),
    0 18px 50px rgba(10, 8, 6, 0.45);
  background-image:
    linear-gradient(var(--paper_line) 1px, transparent 1px),
    linear-gradient(90deg, var(--paper_line) 1px, transparent 1px);
  background-size: 100% 2.4rem, 2.4rem 100%;
  background-position: 0 0.8rem, 1.2rem 0;
}

.dock_header {
  padding: 1.5rem 1.25rem 1rem;
  border-bottom: 6px solid var(--seal_red);
  background:
    linear-gradient(180deg, var(--crate) 0%, var(--crate_dark) 100%);
  color: var(--stencil);
}

.dock_mark {
  margin: 0 0 0.35rem;
  font-family: Impact, "Arial Black", sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.dock_header h1 {
  margin: 0;
  font-family: Impact, "Arial Black", sans-serif;
  font-size: clamp(1.55rem, 4vw, 2rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--paper_hot);
}

.lede {
  margin: 0.55rem 0 0;
  max-width: 38rem;
  color: #c8b79a;
  font-size: 0.98rem;
}

.dock_main {
  padding: 1.25rem;
}

.status_message {
  margin: 0 0 1rem;
  padding: 0.65rem 0.8rem;
  border: 2px solid var(--seal_red);
  background: var(--mismatch_bg);
  color: var(--mismatch);
  font-weight: 600;
}

.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;
}

.drop_stage {
  border: 3px dashed var(--steel);
  background:
    repeating-linear-gradient(
      -12deg,
      rgba(58, 47, 36, 0.05) 0 12px,
      transparent 12px 24px
    ),
    var(--paper_hot);
  cursor: pointer;
  transition: border-color 120ms ease, background-color 120ms ease;
}

.drop_stage.is_dragging,
.drop_stage:focus-within {
  border-color: var(--seal_red);
  background-color: #f2e8d6;
}

.crate_face {
  padding: 2rem 1.25rem 1.8rem;
  text-align: center;
}

.crate_code {
  display: inline-block;
  margin: 0 0 0.8rem;
  padding: 0.2rem 0.55rem;
  border: 2px solid var(--crate);
  font-family: Impact, "Arial Black", sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--crate);
}

.drop_stage_title {
  margin: 0;
  font-family: Impact, "Arial Black", sans-serif;
  font-size: 1.35rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.drop_stage_hint {
  margin: 0.45rem 0 1rem;
  color: var(--ink_soft);
}

.choose_file_button {
  display: inline-block;
  padding: 0.55rem 1rem;
  border: 2px solid var(--crate);
  background: var(--seal_red);
  color: var(--paper_hot);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
}

.choose_file_button:hover {
  background: var(--seal_red_dark);
}

.manifest {
  border: 2px solid var(--crate);
  background: var(--paper_hot);
  padding: 1rem;
}

.manifest_header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
  padding-bottom: 0.55rem;
  border-bottom: 2px solid var(--seal_red);
}

.manifest_title {
  margin: 0;
  font-family: Impact, "Arial Black", sans-serif;
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.file_readout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0 0 1rem;
}

.file_readout dt {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink_soft);
}

.file_readout dd {
  margin: 0.15rem 0 0;
  font-weight: 700;
  word-break: break-word;
}

.progress_label {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.82rem;
  color: var(--ink_soft);
}

.progress_bar {
  width: 100%;
  height: 0.65rem;
  margin: 0 0 1rem;
  accent-color: var(--seal_red);
}

.hash_list {
  display: grid;
  gap: 0.85rem;
}

.hash_row {
  padding: 0.7rem 0.75rem;
  border: 1px solid var(--paper_line);
  background: #f4ecdd;
}

.hash_row_header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.45rem;
}

.hash_label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.trust_badge {
  display: inline-block;
  margin-left: 0.35rem;
  padding: 0.05rem 0.35rem;
  border: 1px solid var(--seal_red);
  color: var(--seal_red);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  vertical-align: middle;
}

.hash_value {
  display: block;
  font-family: ui-monospace, "Cascadia Mono", "Consolas", monospace;
  font-size: 0.78rem;
  line-height: 1.5;
  word-break: break-all;
  color: var(--crate_dark);
}

.copy_button,
.ghost_button {
  border: 2px solid var(--crate);
  background: transparent;
  color: var(--crate);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 0.35rem 0.6rem;
}

.copy_button:hover,
.ghost_button:hover {
  background: var(--crate);
  color: var(--paper_hot);
}

.memory_note {
  margin: 0.85rem 0 0;
  padding: 0.55rem 0.65rem;
  border-left: 4px solid var(--steel);
  background: #ece2d0;
  color: var(--ink_soft);
  font-size: 0.88rem;
}

.compare_panel {
  margin-top: 1rem;
  padding-top: 0.9rem;
  border-top: 1px dashed var(--paper_line);
}

.field_label {
  display: block;
  margin-bottom: 0.3rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink_soft);
}

.expected_hash_input,
.compare_select {
  width: 100%;
  margin-bottom: 0.75rem;
  padding: 0.55rem 0.65rem;
  border: 2px solid var(--crate);
  background: #fffaf0;
  color: var(--ink);
  font: inherit;
}

.expected_hash_input {
  font-family: ui-monospace, "Cascadia Mono", "Consolas", monospace;
  font-size: 0.82rem;
}

.compare_controls {
  margin-bottom: 0.35rem;
}

.compare_result {
  margin: 0.35rem 0 0;
  padding: 0.45rem 0.6rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.compare_result--match {
  background: var(--match_bg);
  color: var(--match);
}

.compare_result--mismatch {
  background: var(--mismatch_bg);
  color: var(--mismatch);
}

.compare_result--invalid {
  background: var(--invalid_bg);
  color: var(--ink_soft);
}

.footnote {
  margin: 1rem 0 0;
  font-size: 0.86rem;
  color: var(--ink_soft);
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

@media (max-width: 520px) {
  .dock_main {
    padding: 1rem;
  }

  .file_readout {
    grid-template-columns: 1fr;
  }

  .hash_row_header {
    flex-direction: column;
    align-items: flex-start;
  }
}