/* ───────────────────────────────────────────────────────────────────────
   Historiske nummerplader — udvidet ordning
   Palette + typografi: arkivpapir, sort blæk, plade-rød kun hvor den
   optræder på det fysiske objekt.
   ─────────────────────────────────────────────────────────────────────── */

:root {
  /* Palette */
  --paper:        #f4efe6;
  --paper-warm:   #ece6db;
  --ink:          #1a1a1a;
  --ink-soft:     #3a3833;
  --muted:        #7a7368;
  --rule:         #c9c2b4;
  --rule-soft:    #ddd6c8;
  --plate-white:  #fbfbf7;
  --plate-border: #0b0b0b;
  --plate-red:    #b0302e;
  --plate-red-d:  #8e2422;
  --tint-1:       #ece4d2;
  --tint-2:       #e1d6bd;
  --tint-3:       #d3c4a3;

  /* Typografi */
  --sans:  "Inter Tight", system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Source Serif 4", "Source Serif Pro", Georgia, "Times New Roman", serif;
  --plate: "Saira Semi Condensed", "Bahnschrift Condensed", "DIN Condensed",
           "Arial Narrow", Impact, sans-serif;

  /* Mål */
  --gutter: clamp(20px, 4vw, 56px);
  --max:    1240px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  font-feature-settings: "ss01", "cv11";
  font-variant-numeric: tabular-nums;
  line-height: 1.45;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--rule);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: text-decoration-color .12s ease;
}
a:hover { text-decoration-color: var(--ink); }

button {
  font: inherit;
  background: none;
  border: 0;
  color: inherit;
  cursor: pointer;
}

::selection { background: var(--plate-red); color: var(--plate-white); }

/* ─────────────────────────────────────────  MASTHEAD  ───────────── */

.masthead {
  padding: clamp(40px, 7vw, 96px) var(--gutter) clamp(28px, 5vw, 64px);
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.masthead::after {
  /* the single permitted accent rule, in plate-red */
  content: "";
  position: absolute;
  left: var(--gutter);
  right: var(--gutter);
  bottom: -1px;
  height: 2px;
  background: var(--plate-red);
  max-width: 64px;
}
.masthead-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "kicker  random"
    "title   title"
    "stand   stand";
  gap: 12px clamp(16px, 4vw, 48px);
  align-items: end;
}

.kicker {
  grid-area: kicker;
  margin: 0;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.title {
  grid-area: title;
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2.4rem, 7vw, 5rem);
  line-height: 0.96;
  letter-spacing: -0.015em;
  margin: 0;
  font-variation-settings: "opsz" 60;
}
.standfirst {
  grid-area: stand;
  margin: 0;
  font-family: var(--serif);
  font-style: italic;
  font-variation-settings: "opsz" 18;
  font-size: clamp(1rem, 1.6vw, 1.18rem);
  color: var(--ink-soft);
  max-width: 64ch;
}
.standfirst [data-stat] {
  font-style: normal;
  font-family: var(--sans);
  font-weight: 600;
  color: var(--ink);
}

.random-link {
  grid-area: random;
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  padding: 8px 0;
  border-bottom: 1px solid var(--ink);
  align-self: start;
  white-space: nowrap;
}
.random-link span { padding-left: 6px; transition: transform .15s ease; }
.random-link:hover span { transform: translateX(4px); }

/* ─────────────────────────────────────────  SEARCH  ─────────────── */

.search {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
.search-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px var(--gutter);
}

.search-field {
  display: flex;
  align-items: baseline;
  gap: 14px;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 8px;
}
.search-prompt {
  font-family: var(--serif);
  font-style: italic;
  font-variation-settings: "opsz" 14;
  color: var(--muted);
  font-size: 0.95rem;
}
#query {
  flex: 1;
  font: inherit;
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  background: transparent;
  border: 0;
  outline: 0;
  padding: 4px 0;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.005em;
}
#query::placeholder { color: var(--muted); font-style: italic; }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
  min-height: 0;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 6px 4px 10px;
  border: 1px solid var(--ink);
  background: var(--paper);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
}
.chip-label {
  font-family: var(--serif);
  font-style: italic;
  font-variation-settings: "opsz" 10;
  color: var(--muted);
}
.chip-value { font-weight: 500; }
.chip-x {
  margin-left: 2px;
  width: 18px; height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  line-height: 1;
  color: var(--muted);
}
.chip-x:hover { color: var(--plate-red); }

/* Quick-row containers (Type + Mønster) */
.quick-row {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-top: 10px;
}
.quick-row-label {
  flex: 0 0 auto;
  width: 64px;
  font-family: var(--serif);
  font-style: italic;
  font-variation-settings: "opsz" 11;
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.02em;
  padding-top: 1px;
}

/* Pattern quick-toggle row */
.pattern-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.pattern-quick:empty { display: none; }

.pattern-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 11px 5px 9px;
  font-family: var(--serif);
  font-style: italic;
  font-variation-settings: "opsz" 12;
  font-size: 0.82rem;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--rule);
  letter-spacing: 0.005em;
  transition: background .12s ease, border-color .12s ease, color .12s ease;
}
.pattern-pill:hover {
  border-color: var(--ink-soft);
  color: var(--ink);
}
.pattern-pill .pattern-mark {
  width: 7px; height: 7px;
  border: 1px solid var(--muted);
  border-radius: 50%;
  background: transparent;
  transition: background .12s ease, border-color .12s ease;
}
.pattern-pill.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
  font-style: normal;
}
.pattern-pill.is-active .pattern-mark {
  background: var(--plate-red);
  border-color: var(--plate-red);
}

.search-help {
  margin-top: 14px;
  font-size: 0.85rem;
}
.search-help summary {
  cursor: pointer;
  color: var(--muted);
  font-family: var(--serif);
  font-style: italic;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.search-help summary::-webkit-details-marker { display: none; }
.search-help summary::before { content: "+ "; font-style: normal; }
.search-help[open] summary::before { content: "− "; }
.help-grid {
  margin-top: 12px;
  padding-top: 14px;
  border-top: 1px dashed var(--rule);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  max-width: 720px;
}
.help-grid h4 {
  font-family: var(--serif);
  font-weight: 500;
  margin: 0 0 8px;
  font-size: 0.9rem;
}
.help-grid dl {
  margin: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
}
.help-grid dt code {
  font-family: var(--plate);
  font-weight: 500;
  background: var(--paper-warm);
  padding: 1px 5px;
  font-size: 0.85em;
}
.help-grid dd { margin: 0; color: var(--ink-soft); }

/* ─────────────────────────────────────────  STAGE / MATRIX  ─────── */

.stage {
  flex: 1;
  padding: clamp(28px, 5vw, 56px) var(--gutter) clamp(48px, 7vw, 96px);
  max-width: var(--max);
  margin: 0 auto;
  width: 100%;
}
.loading { color: var(--muted); font-style: italic; font-family: var(--serif); }

/* Caption above any view */
.caption {
  display: flex;
  align-items: baseline;
  gap: 18px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 8px;
  margin-bottom: 22px;
}
.caption .meta { margin-right: auto; }
.caption h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.05rem;
  margin: 0;
}
.caption .meta { color: var(--muted); font-size: 0.85rem; }

/* Matrix */
.matrix-wrap { overflow-x: auto; }
.matrix {
  display: grid;
  gap: 1px;
  background: var(--rule-soft);
  padding: 1px;
  border: 1px solid var(--rule);
  width: max-content;
  min-width: 100%;
}
.matrix-cell {
  background: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--plate);
  font-size: 0.95rem;
  width: 46px;
  height: 38px;
  letter-spacing: 0.04em;
  position: relative;
  user-select: none;
}
.matrix-cell.head {
  background: var(--paper-warm);
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}
.matrix-cell.corner { background: var(--paper-warm); }

/* Plate cells (allocated) */
.matrix-cell.plate {
  background: var(--plate-white);
  color: var(--plate-red);
  font-weight: 700;
  cursor: pointer;
  border: 1px solid var(--plate-border);
  margin: 1px;
  width: 44px;
  height: 36px;
  transition: transform .08s ease;
}
.matrix-cell.plate:hover {
  transform: translateY(-1px);
  z-index: 2;
  box-shadow: 0 1px 0 var(--ink);
}
.matrix-cell.plate.density-1 { background: #fbfbf7; }
.matrix-cell.plate.density-2 { background: #f7f3e9; }
.matrix-cell.plate.density-3 { background: #f1ead8; }
.matrix-cell.plate.density-4 { background: #ece1c6; }

/* Inactive: not allocated */
.matrix-cell.empty {
  background: var(--paper);
  color: transparent;
  position: relative;
}
.matrix-cell.empty::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(45deg,
      transparent 0, transparent 6px,
      var(--rule-soft) 6px, var(--rule-soft) 7px);
  opacity: 0.6;
}

/* Density legend */
.legend {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 14px;
}
.legend-swatches { display: flex; gap: 2px; }
.legend-swatches span {
  width: 18px; height: 12px;
  border: 1px solid var(--plate-border);
}

/* ─────────────────────────────────────────  RESULTS STRIP  ──────── */

.results {
  display: grid;
  gap: 28px;
}
.results-group h3 {
  font-family: var(--serif);
  font-style: italic;
  font-variation-settings: "opsz" 14;
  color: var(--muted);
  font-weight: 400;
  font-size: 0.9rem;
  margin: 0 0 12px;
  border-bottom: 1px dashed var(--rule);
  padding-bottom: 6px;
}
.plate-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.plate-tile {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 4px;
  text-decoration: none;
  cursor: pointer;
}
.plate-tile .plate {
  font-family: var(--plate);
  background: var(--plate-white);
  border: 2px solid var(--plate-border);
  color: var(--plate-red);
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 8px 12px;
  font-size: 1.5rem;
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-variant-numeric: tabular-nums;
  transition: transform .08s ease;
}
.plate-tile:hover .plate {
  transform: translateY(-1px);
  box-shadow: 0 2px 0 var(--ink);
}
.plate-tile .plate .letters { letter-spacing: 0.06em; }
.plate-tile .meta {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
}
.plate-tile .meta-type, .plate-tile .meta-status {
  display: block;
  line-height: 1.35;
}

/* Caption-side action: Vis kun ledige  */
.lookup-action {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
}
.lookup-btn {
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 7px 12px 7px 13px;
  border: 1px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-weight: 600;
  cursor: pointer;
  transition: background .12s ease, color .12s ease;
}
.lookup-btn:hover { background: var(--ink); color: var(--paper); }
.lookup-btn:disabled, .lookup-btn.is-busy {
  cursor: progress;
  opacity: 0.7;
  background: var(--paper-warm);
  color: var(--muted);
  border-color: var(--rule);
}
.lookup-summary {
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.88rem;
  color: var(--ink-soft);
}

/* Thin progress bar shown during lookup */
.lookup-progress {
  margin: -16px 0 24px;
}
.lookup-bar {
  height: 2px;
  background: var(--rule-soft);
  overflow: hidden;
}
.lookup-bar-fill {
  height: 100%;
  width: 0;
  background: var(--plate-red);
  transition: width .15s linear;
}

/* Tile availability states */
.plate-tile .meta-status {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  font-weight: 500;
  text-transform: uppercase;
  color: transparent;
  min-height: 0.85em;
  margin-top: 1px;
}
.plate-tile[data-availability="checking"] .meta-status { color: var(--muted); }
.plate-tile[data-availability="checking"] .plate {
  border-color: var(--rule);
  color: var(--muted);
}
.plate-tile[data-availability="available"] .meta-status { color: #2c6e3a; }
.plate-tile[data-availability="available"] .plate {
  border-color: var(--plate-border);
  box-shadow: 0 0 0 2px #cae3cf;
}
.plate-tile[data-availability="taken"] {
  opacity: 0.32;
}
.plate-tile[data-availability="taken"] .plate {
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-color: var(--muted);
  text-decoration-thickness: 2px;
  border-color: var(--rule);
}
.plate-tile[data-availability="taken"] .meta-status { color: var(--muted); }
.plate-tile[data-availability="error"] .meta-status { color: var(--plate-red); }

/* Filter-mode: hide registered tiles entirely */
body.hide-registered .plate-tile[data-availability="taken"] {
  display: none;
}
body.hide-registered .results-group:has(.plate-row:not(:has(.plate-tile:not([data-availability="taken"])))) {
  display: none;
}

.results-empty {
  font-family: var(--serif);
  font-style: italic;
  font-variation-settings: "opsz" 18;
  font-size: 1.1rem;
  color: var(--ink-soft);
  padding: 32px 0;
  border-top: 1px solid var(--rule);
}
.results-empty code {
  font-family: var(--plate);
  font-style: normal;
  background: var(--paper-warm);
  padding: 1px 6px;
  font-size: 0.95em;
}

/* ─────────────────────────────────────────  DETAIL PANEL  ───────── */

.panel-veil {
  position: fixed; inset: 0;
  background: rgba(26, 26, 26, 0.18);
  z-index: 40;
  animation: fade-in .15s ease;
}
.panel {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(540px, 100vw);
  background: var(--paper);
  z-index: 50;
  border-left: 1px solid var(--rule);
  overflow-y: auto;
  animation: slide-in .18s ease;
}
@keyframes fade-in { from { opacity: 0 } to { opacity: 1 } }
@keyframes slide-in { from { transform: translateX(20px); opacity: 0 } to { transform: none; opacity: 1 } }

.panel-close {
  position: absolute;
  top: 18px; right: 22px;
  font-size: 1.6rem;
  line-height: 1;
  color: var(--muted);
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
}
.panel-close:hover { color: var(--ink); }

.panel-inner {
  padding: clamp(28px, 5vw, 48px);
  padding-right: 60px;
}
.panel-kode {
  font-family: var(--serif);
  font-style: italic;
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0 0 4px;
}
.panel-plate {
  font-family: var(--plate);
  font-weight: 700;
  font-size: clamp(3.5rem, 10vw, 5.5rem);
  color: var(--plate-red);
  line-height: 1;
  letter-spacing: 0.04em;
  margin: 0;
  display: inline-block;
  background: var(--plate-white);
  border: 3px solid var(--plate-border);
  padding: 12px 20px;
}
.panel-summary {
  margin: 18px 0 28px;
  font-family: var(--serif);
  font-style: italic;
  color: var(--ink-soft);
  font-size: 1rem;
}

.panel-section { margin-top: 24px; }
.panel-section h4 {
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
  margin: 0 0 10px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 6px;
}
.panel-rows { display: grid; gap: 6px; font-size: 0.92rem; font-variant-numeric: tabular-nums; }
.panel-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 16px;
  align-items: baseline;
  padding: 4px 0;
}
.panel-row .label { color: var(--ink); }
.panel-row .range {
  font-family: var(--plate);
  font-weight: 500;
  color: var(--ink-soft);
}
.panel-row .count { color: var(--muted); font-size: 0.85rem; }
.panel-row.muted { opacity: 0.45; }
.panel-row.muted .range { font-style: italic; font-family: var(--serif); }

.panel-foot {
  margin-top: 32px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
  font-size: 0.85rem;
  color: var(--muted);
}

/* ─────────────────────────────────────────  SPECIMEN (random)  ──── */

.specimen {
  text-align: center;
  padding: clamp(24px, 6vw, 48px);
  border: 1px solid var(--rule);
  background: var(--paper-warm);
}
.specimen .panel-plate {
  font-size: clamp(3rem, 11vw, 6rem);
}
.specimen .meta {
  font-family: var(--serif);
  font-style: italic;
  color: var(--ink-soft);
  margin-top: 18px;
  font-size: 1rem;
}
.specimen .meta strong {
  font-style: normal;
  font-family: var(--sans);
  font-weight: 600;
  color: var(--ink);
}

/* ─────────────────────────────────────────  COLOPHON  ───────────── */

.colophon {
  border-top: 1px solid var(--rule);
  padding: 32px var(--gutter);
  margin-top: auto;
  font-size: 0.85rem;
  color: var(--muted);
}
.colophon-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 18px;
}
.colophon p { margin: 0; max-width: 60ch; }
.colophon a { color: var(--ink-soft); }

/* ─────────────────────────────────────────  RESPONSIVE  ─────────── */

@media (max-width: 720px) {
  .masthead-inner {
    grid-template-columns: 1fr;
    grid-template-areas: "kicker" "title" "stand" "random";
  }
  .random-link { justify-self: start; }
  .help-grid { grid-template-columns: 1fr; }
  .matrix-cell, .matrix-cell.plate {
    width: 36px; height: 30px; font-size: 0.85rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}