/* Self-hosted fonts (latin, woff2) — no external calls, works offline.
   Refresh with: bash deploy/fetch-fonts.sh */
@font-face { font-family: "Barlow"; font-style: normal; font-weight: 400; font-display: swap; src: url("./fonts/barlow-400.woff2") format("woff2"); }
@font-face { font-family: "Barlow"; font-style: normal; font-weight: 500; font-display: swap; src: url("./fonts/barlow-500.woff2") format("woff2"); }
@font-face { font-family: "Barlow"; font-style: normal; font-weight: 600; font-display: swap; src: url("./fonts/barlow-600.woff2") format("woff2"); }
@font-face { font-family: "Barlow Condensed"; font-style: normal; font-weight: 600; font-display: swap; src: url("./fonts/barlow-condensed-600.woff2") format("woff2"); }
@font-face { font-family: "Barlow Condensed"; font-style: normal; font-weight: 700; font-display: swap; src: url("./fonts/barlow-condensed-700.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 400; font-display: swap; src: url("./fonts/plex-mono-400.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 500; font-display: swap; src: url("./fonts/plex-mono-500.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 600; font-display: swap; src: url("./fonts/plex-mono-600.woff2") format("woff2"); }

:root {
  /* Queue status board palette */
  --board: #0e1519;       /* board background */
  --face: #17212a;        /* panel / board face */
  --recessed: #0b1216;    /* recessed readout wells */
  --ink: #eaf0f4;         /* signage white */
  --muted: #7a8794;       /* labels */
  --line: #26333d;        /* hairline dividers */
  --amber: #f4b32b;       /* split-flap signal */
  --amber-dim: #b8862a;
  --go: #3ecf7a;          /* on time / stable */
  --stop: #ef5b5b;        /* overloaded / unstable */
  --track: #56b6c9;       /* the "separate" line */

  /* Aliases kept so existing rules read cleanly */
  --bg: var(--board);
  --panel: var(--face);
  --panel-2: var(--recessed);
  --text: var(--ink);
  --accent: var(--amber);
  --accent-2: var(--go);
  --paused: var(--amber);
  --series-b: var(--track);
  --chart-ref: #566370;
  --warn-bg: #2a1417;
  --warn-text: #f0a6a6;
  --radius: 10px;

  --font-display: "Barlow Condensed", "Arial Narrow", system-ui, sans-serif;
  --font-body: "Barlow", system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", monospace;
}

* { box-sizing: border-box; }

/* The hidden attribute must win over display rules like .layout/.compare. */
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--board);
  color: var(--ink);
  line-height: 1.5;
  /* faint horizontal board ruling */
  background-image: repeating-linear-gradient(
    var(--board) 0 39px,
    rgba(255, 255, 255, 0.014) 39px 40px
  );
}

/* ---------- Header ---------- */
.site-header {
  padding: 1.5rem 2rem 0.75rem;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
}
.site-header h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2.3rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
  line-height: 0.95;
}
.site-header h1::before {
  content: "Queue status board";
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.32em;
  color: var(--muted);
  margin-bottom: 0.25rem;
}
.tagline {
  margin: 0.4rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}
.about-link { color: var(--amber); text-decoration: none; border-bottom: 1px solid rgba(244, 179, 43, 0.4); }
.about-link:hover { border-bottom-color: var(--amber); }

/* View toggle — like board mode tabs */
.view-toggle {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}
.view-toggle .tab {
  background: transparent;
  color: var(--muted);
  border: none;
  padding: 0.5rem 1rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
}
.view-toggle .tab.on { background: var(--amber); color: #201400; }

/* ---------- Status tag (On time / Busy / Overloaded) ---------- */
.status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 4px 11px;
  border-radius: 6px;
  border: 1px solid var(--line);
  color: var(--muted);
}
.status::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}
.status.go { color: var(--go); border-color: #2f5a3a; background: #14231a; }
.status.busy { color: var(--amber); border-color: #5a4620; background: #241d10; }
.status.stop { color: var(--stop); border-color: #5a2b2b; background: #241315; }
@media (prefers-reduced-motion: no-preference) {
  .status::before { animation: blip 2s ease-in-out infinite; }
}
@keyframes blip { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

/* ---------- About page ---------- */
a.btn { display: inline-block; text-decoration: none; }
.about { max-width: 760px; margin: 0 auto; padding: 1.5rem 2rem 3rem; display: flex; flex-direction: column; gap: 1.1rem; }
.about-card { background: var(--face); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem 1.5rem; }
.about-card h2 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--amber);
  font-size: 1.3rem;
}
.about-card p { line-height: 1.7; margin: 0 0 0.85rem; }
.about-card p:last-child { margin-bottom: 0; }
.about-nav { margin: 0; padding-left: 1.1rem; line-height: 1.6; }
.about-nav li { margin-bottom: 0.5rem; }
.about-nav li:last-child { margin-bottom: 0; }
.about-foot { text-align: center; margin: 0; }

/* ---------- Layout ---------- */
.layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  padding: 1.25rem 2rem 2rem;
  align-items: start;
}
@media (max-width: 760px) { .layout { grid-template-columns: 1fr; } }

.panel {
  background: var(--face);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.4rem 1.4rem;
}
.panel h2, .charts-row h2 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin: 1.25rem 0 0.75rem;
}
.panel h2:first-child { margin-top: 0; }

.visual { min-height: 340px; }
.muted { color: var(--muted); font-size: 0.9rem; }
.small { font-size: 0.8rem; }

/* ---------- Stage: waiting line + gates ---------- */
.stage { display: flex; align-items: stretch; gap: 1rem; min-height: 220px; }
.queue-area {
  flex: 1 1 auto;
  position: relative;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--recessed);
  padding: 1.75rem 0.75rem 0.75rem;
  display: flex;
  flex-wrap: wrap;
  align-content: flex-end;
  gap: 6px;
}
.servers-area {
  flex: 0 0 auto;
  position: relative;
  padding: 1.75rem 0.5rem 0.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
}
.stage-label {
  position: absolute;
  top: 0.45rem;
  left: 0.6rem;
  font-family: var(--font-display);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
}
/* passengers waiting in line = amber ticket pills */
.dots { display: contents; }
.dot {
  width: 13px;
  height: 15px;
  border-radius: 2px;
  background: var(--amber);
  box-shadow: 0 0 5px rgba(244, 179, 43, 0.4);
}
.overflow {
  align-self: flex-end;
  color: var(--amber);
  font-family: var(--font-mono);
  font-weight: 600;
}
/* gates = service counters */
.servers { display: flex; flex-direction: column; gap: 10px; }
.server {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--recessed);
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.server.busy { background: #12281c; border-color: var(--go); box-shadow: 0 0 9px rgba(62, 207, 122, 0.55); }
.server.paused { background: #241d10; border-color: var(--amber); box-shadow: 0 0 9px rgba(244, 179, 43, 0.55); }

/* ---------- Playback ---------- */
.playback { display: flex; align-items: center; gap: 0.55rem; margin-top: 1rem; }
.btn {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.45rem 1.1rem;
  border-radius: 7px;
  border: 1px solid var(--line);
  background: var(--recessed);
  color: var(--ink);
  cursor: pointer;
}
.btn:hover:not(:disabled) { border-color: var(--amber); color: var(--amber); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-start { background: var(--go); color: #04140a; border-color: var(--go); }
.btn-start:hover:not(:disabled) { color: #04140a; filter: brightness(1.08); }
.clock {
  margin-left: auto;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--amber);
}

/* ---------- Controls ---------- */
.control { margin-bottom: 1.1rem; }
.control label { display: block; font-weight: 600; margin-bottom: 0.35rem; }
.control input[type="range"] { width: 100%; accent-color: var(--amber); }
.control select {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.4rem 0.6rem;
  border-radius: 7px;
  background: var(--recessed);
  color: var(--ink);
  border: 1px solid var(--line);
}
.control output {
  display: inline-block;
  margin-top: 0.3rem;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--amber);
  font-weight: 500;
}

/* ---------- Metrics board (single view) ---------- */
.metrics-head { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; }
.metrics-table { width: 100%; border-collapse: separate; border-spacing: 0 6px; }
.metrics-table thead th {
  text-align: right;
  font-family: var(--font-display);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  padding: 0.2rem 0.7rem;
}
.metrics-table thead th:first-child { text-align: left; }
.metrics-table tbody th {
  text-align: left;
  font-weight: 500;
  color: var(--muted);
  padding: 0.55rem 0.7rem;
  /* split-flap seam through the readout row */
  background: linear-gradient(var(--recessed) 0 calc(50% - 0.5px),
    rgba(0, 0, 0, 0.45) calc(50% - 0.5px) calc(50% + 0.5px),
    var(--recessed) calc(50% + 0.5px) 100%);
  border-radius: 6px 0 0 6px;
}
.metrics-table tbody td {
  text-align: right;
  padding: 0.55rem 0.7rem;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(var(--recessed) 0 calc(50% - 0.5px),
    rgba(0, 0, 0, 0.45) calc(50% - 0.5px) calc(50% + 0.5px),
    var(--recessed) calc(50% + 0.5px) 100%);
}
.metrics-table td.measured { color: var(--amber); text-shadow: 0 0 10px rgba(244, 179, 43, 0.25); }
.metrics-table tbody td:last-child { color: var(--muted); border-radius: 0 6px 6px 0; }

.warning {
  background: var(--warn-bg);
  color: var(--warn-text);
  border: 1px solid #5a2b2b;
  border-left: 3px solid var(--stop);
  border-radius: 6px;
  padding: 0.55rem 0.85rem;
  margin-bottom: 0.75rem;
  font-weight: 500;
}

/* ---------- Compare view ---------- */
.compare { display: flex; flex-direction: column; gap: 0.6rem; padding: 0.85rem 2rem 1.25rem; }
.cmp-controlbar {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  background: var(--face);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.7rem 1.25rem;
}
.cmp-ctrl { display: flex; flex-direction: column; gap: 0.15rem; min-width: 150px; }
.cmp-ctrl label { font-size: 0.8rem; font-weight: 600; color: var(--muted); }
.cmp-ctrl input[type="range"] { accent-color: var(--amber); }
.cmp-ctrl output { font-family: var(--font-mono); font-size: 0.85rem; color: var(--amber); font-weight: 500; font-variant-numeric: tabular-nums; }
.cmp-fixed { font-weight: 600; color: var(--ink); padding-top: 0.15rem; }
.cmp-play { display: flex; align-items: center; gap: 0.5rem; margin-left: auto; }
.cmp-subnote { margin: -0.25rem 0 0; }

/* Presets */
.presets { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; }
.presets-label { font-family: var(--font-display); font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.preset {
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.22rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--recessed);
  color: var(--ink);
  cursor: pointer;
}
.preset:hover { border-color: var(--amber); color: var(--amber); }
#view-single .presets { margin: 0.25rem 0 0.5rem; }
.cmp-presetbar { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; margin: -0.25rem 0 0; }
.cmp-presetbar .cmp-subnote { margin: 0 0 0 auto; }

.cmp-panel { background: var(--face); border: 1px solid var(--line); border-radius: var(--radius); padding: 0.7rem 1rem 0.85rem; }
.cmp-head { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.5rem; }
.cmp-title { font-family: var(--font-display); font-size: 1.15rem; letter-spacing: 0.06em; text-transform: uppercase; font-weight: 600; }
.cmp-sub { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); }
.badge {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  background: var(--recessed);
  border: 1px solid var(--line);
  color: var(--amber);
  padding: 0.15rem 0.6rem;
  border-radius: 6px;
  font-variant-numeric: tabular-nums;
}

.cmp-body { display: flex; gap: 1.25rem; align-items: center; flex-wrap: wrap; }
.cmp-stage { flex: 1 1 320px; display: flex; gap: 1rem; min-height: 64px; }
.cmp-stage-wrap { flex: 1 1 320px; }
.cmp-stage-col { display: flex; flex-direction: column; gap: 0.5rem; }
.cmp-subline { display: flex; gap: 1rem; min-height: 34px; }
.servers-row { flex-direction: row; }

.cmp-metrics { flex: 0 0 auto; display: flex; flex-direction: column; gap: 0.4rem; }
.cmp-metric {
  display: flex;
  flex-direction: row;
  align-items: baseline;
  gap: 0.4rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.35rem 0.7rem;
  min-width: 210px;
  /* split-flap seam */
  background: linear-gradient(var(--recessed) 0 calc(50% - 0.5px),
    rgba(0, 0, 0, 0.45) calc(50% - 0.5px) calc(50% + 0.5px),
    var(--recessed) calc(50% + 0.5px) 100%);
}
.cmp-mlabel { font-size: 0.75rem; color: var(--muted); flex: 1; }
.cmp-mval { font-family: var(--font-mono); font-size: 1.05rem; font-weight: 500; font-variant-numeric: tabular-nums; color: var(--ink); }
.cmp-mval.measured { color: var(--amber); text-shadow: 0 0 10px rgba(244, 179, 43, 0.25); }
.cmp-mth { font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.cmp-note { margin: 0.4rem 0 0; font-size: 0.8rem; color: var(--amber); }

#view-compare .chart { height: 68px; }
#view-compare .chart-card { padding: 0.5rem 0.7rem; }
#view-compare .chart-caption { font-size: 0.72rem; margin-top: 0.35rem; }
#view-compare .charts-row { padding: 0.6rem 1rem 0.7rem; }

/* ---------- Charts ---------- */
.col-left { display: flex; flex-direction: column; gap: 1.25rem; min-width: 0; }
.charts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 640px) { .charts-grid { grid-template-columns: 1fr; } }
.chart-card { background: var(--recessed); border: 1px solid var(--line); border-radius: 8px; padding: 0.6rem 0.8rem 0.5rem; }
.chart-title { font-size: 0.85rem; color: var(--muted); margin-bottom: 0.35rem; }
.chart-head { display: flex; align-items: baseline; gap: 6px; margin-bottom: 0.4rem; flex-wrap: wrap; }
.chart-name { font-family: var(--font-display); font-size: 0.95rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink); }
.chart-val { font-family: var(--font-mono); font-size: 0.9rem; font-weight: 600; color: var(--amber); font-variant-numeric: tabular-nums; }
.chart-th { font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.chart-sep { color: var(--muted); }
.chart-plot { display: flex; gap: 6px; align-items: stretch; }
.chart-yaxis {
  flex: 0 0 auto;
  width: 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  padding: 1px 0;
}
.chart { flex: 1 1 auto; min-width: 0; display: block; width: 100%; height: 96px; }
.chart-x { font-family: var(--font-mono); font-size: 0.66rem; color: var(--muted); margin-top: 0.15rem; text-align: right; }
.chart-caption { font-size: 0.78rem; color: var(--muted); line-height: 1.45; margin: 0.5rem 0 0; }
.chart-legend { display: flex; gap: 1.25rem; margin-top: 0.6rem; font-size: 0.78rem; color: var(--muted); }
.legend-line { display: inline-block; width: 18px; height: 2px; vertical-align: middle; background: var(--amber); }
.legend-line.dashed { height: 0; background: none; border-top: 2px dashed var(--chart-ref); }

/* ---------- Footer badge ---------- */
.site-footer {
  margin-top: 1.5rem;
  padding: 1.75rem 2rem 2.25rem;
  text-align: center;
  border-top: 1px solid var(--line);
}
.site-footer img { vertical-align: middle; opacity: 0.85; transition: opacity 0.2s; }
.site-footer a:hover img { opacity: 1; }