/* MEGURO OBSERVATORY — scientific instrument, not an admin panel.
   Near-black field, one phosphor accent, 1px grid lines, monospace numerals. */

:root {
  color-scheme: dark;
  --bg: #0a0e12;
  --panel: #0d141b;
  --panel-deep: #090d11;
  --line: #1c2530;
  --ink: #c9d4dd;
  --muted: #5b6a77;
  --phos: #4ade80;
  --phos-dim: rgba(74, 222, 128, 0.32);
  --phos-faint: rgba(74, 222, 128, 0.08);
  --amber: #e0b04f;
  --red: #e06c5f;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.012) 0 1px, transparent 1px 3px),
    var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
}

h1, p, ol { margin: 0; }
button, input { font: inherit; }

.micro {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- header ---------- */

.obs-header {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-deep);
}

.obs-title h1 {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--phos);
  text-shadow: 0 0 12px rgba(74, 222, 128, 0.25);
}

.obs-title .micro { display: block; margin-top: 3px; }

.obs-coords {
  display: flex;
  gap: 0;
  margin-left: auto;
  border: 1px solid var(--line);
}

.coord {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 6px 14px;
  border-right: 1px solid var(--line);
  min-width: 70px;
}
.coord:last-child { border-right: 0; }
.coord strong { font-weight: 500; font-size: 12px; color: var(--ink); white-space: nowrap; }

.obs-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 10px;
  letter-spacing: 0.14em;
  border: 1px solid var(--line);
  padding: 8px 12px;
  white-space: nowrap;
}
.obs-link:hover { color: var(--ink); border-color: var(--muted); }

/* ---------- loader bar ---------- */

.loader-bar {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  flex-wrap: wrap;
}

.loader-bar label, .twin-form label {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.loader-bar input, .twin-form input {
  background: var(--panel-deep);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 6px 9px;
  width: 200px;
  outline: none;
}
.loader-bar label.narrow input, .twin-form label.narrow input { width: 76px; }
.loader-bar input:focus, .twin-form input:focus { border-color: var(--phos-dim); }

.loader-bar button, .twin-form button {
  background: var(--phos-faint);
  border: 1px solid var(--phos-dim);
  color: var(--phos);
  letter-spacing: 0.14em;
  font-size: 11px;
  padding: 7px 22px;
  cursor: pointer;
}
.loader-bar button:hover, .twin-form button:hover { background: rgba(74, 222, 128, 0.16); }
.loader-bar button:disabled, .twin-form button:disabled { opacity: 0.4; cursor: default; }

.load-status { padding-bottom: 8px; }
.load-status.ok { color: var(--phos); }
.load-status.fail { color: var(--red); text-transform: none; letter-spacing: 0.04em; }

.progress-rail {
  height: 2px;
  background: var(--line);
}
.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--phos);
  box-shadow: 0 0 8px rgba(74, 222, 128, 0.6);
  transition: width 60ms linear;
}

/* ---------- tabs ---------- */

.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--line);
  background: var(--panel-deep);
  padding: 0 20px;
}

.tab {
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  letter-spacing: 0.2em;
  font-size: 11px;
  padding: 10px 18px;
  cursor: pointer;
}
.tab.active { color: var(--phos); border-bottom-color: var(--phos); }

.view { padding: 16px 20px 40px; }
.empty-hint { padding: 40px 0; text-align: center; }

/* ---------- scrubber ---------- */

.scrub-block { margin-bottom: 16px; }

.scrub-readout {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 6px;
}
.scrub-readout strong {
  font-size: 20px;
  font-weight: 600;
  color: var(--phos);
  letter-spacing: 0.06em;
  min-width: 180px;
}
.date-readout { font-size: 14px; color: var(--ink); }
.scrub-hint { margin-left: auto; }

#scrubber {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 22px;
  background: transparent;
  cursor: ew-resize;
  margin: 0 0 4px;
}
#scrubber::-webkit-slider-runnable-track {
  height: 4px;
  background: var(--line);
}
#scrubber::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 3px;
  height: 18px;
  margin-top: -7px;
  background: var(--phos);
  box-shadow: 0 0 8px rgba(74, 222, 128, 0.8);
  border: 0;
  border-radius: 0;
}
#scrubber::-moz-range-track { height: 4px; background: var(--line); }
#scrubber::-moz-range-thumb {
  width: 3px;
  height: 18px;
  background: var(--phos);
  box-shadow: 0 0 8px rgba(74, 222, 128, 0.8);
  border: 0;
  border-radius: 0;
}
#scrubber:focus { outline: none; }

.mini-chart { border: 1px solid var(--line); background: var(--panel-deep); cursor: crosshair; }
.mini-chart svg { display: block; width: 100%; height: 84px; }
.mini-caption { margin-top: 4px; }

/* ---------- KPI strip ---------- */

.kpi-strip, .twin-readouts {
  display: flex;
  border: 1px solid var(--line);
  background: var(--panel);
  margin-bottom: 16px;
}

.kpi {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 16px;
  border-right: 1px solid var(--line);
}
.kpi:last-child { border-right: 0; }
.kpi strong { font-size: 18px; font-weight: 500; color: var(--ink); }
.kpi strong.alert { color: var(--red); }

/* ---------- world grid ---------- */

.world-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 16px;
  align-items: start;
}

.sku-pane, .event-pane { border: 1px solid var(--line); background: var(--panel); }

.pane-label {
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}
.pane-label span { color: var(--phos); }

.sku-head, .sku-row {
  display: grid;
  grid-template-columns: minmax(150px, 1.1fr) 110px minmax(160px, 1.4fr) minmax(160px, 1.4fr) 64px 76px;
  gap: 12px;
  align-items: center;
  padding: 6px 12px;
}
.sku-head { border-bottom: 1px solid var(--line); }
.sku-head .num, .sku-row .num { text-align: right; }

.sku-row { border-bottom: 1px solid var(--line); }
.sku-row:last-child { border-bottom: 0; }

.sku-id { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.sku-id code { color: var(--phos); font-size: 12px; }
.sku-id span {
  color: var(--muted);
  font-size: 11px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sku-price { font-size: 12px; white-space: nowrap; }
.sku-price s { color: var(--muted); margin-left: 6px; }
.sku-price .pchg { color: var(--amber); margin-left: 6px; }

.spark { display: block; width: 100%; height: 36px; cursor: crosshair; }
.spark .grid-line { stroke: var(--line); stroke-width: 1; }
.spark .series { stroke: var(--ink); stroke-width: 1; fill: none; vector-effect: non-scaling-stroke; }
.spark .series.t30 { stroke: var(--muted); }
.spark .out-band { fill: rgba(224, 108, 95, 0.18); }
.spark .price-tick { stroke: var(--amber); stroke-width: 1; }
.spark .cursor { stroke: var(--phos); stroke-width: 1; }
.mini-chart .cursor { stroke: var(--phos); stroke-width: 1; }
.mini-chart .series { stroke: var(--phos-dim); stroke-width: 1; fill: rgba(74, 222, 128, 0.05); }
.mini-chart .grid-line { stroke: var(--line); stroke-width: 1; }

.sku-row .num { font-size: 13px; }
.sku-row .num.zero { color: var(--red); }
.legend { padding: 8px 12px; border-top: 1px solid var(--line); }

/* ---------- event feed ---------- */

.event-feed {
  list-style: none;
  padding: 0;
  max-height: 560px;
  overflow-y: auto;
}

.event-feed li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 5px 12px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  font-size: 11px;
}
.event-feed li:hover { background: var(--phos-faint); }
.event-feed li.near { background: var(--phos-faint); box-shadow: inset 2px 0 0 var(--phos); }
.event-feed li code { color: var(--muted); flex: none; }
.event-feed li.near code { color: var(--phos); }
.ev-type { flex: none; letter-spacing: 0.1em; font-size: 10px; }
.ev-type.stockout { color: var(--red); }
.ev-type.restock { color: var(--phos); }
.ev-type.price { color: var(--amber); }
.ev-detail { color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.event-feed .empty { color: var(--muted); cursor: default; }

/* ---------- twin ---------- */

.twin-form {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  flex-wrap: wrap;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 12px 16px;
  margin-bottom: 16px;
}

.twin-config {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  border-right: 1px solid var(--line);
  padding-right: 14px;
}
.twin-tag { padding-bottom: 8px; color: var(--phos); }

.twin-badge {
  border: 1px solid var(--phos);
  background: var(--phos-faint);
  color: var(--phos);
  text-align: center;
  letter-spacing: 0.2em;
  font-size: 14px;
  padding: 14px;
  margin-bottom: 16px;
  text-shadow: 0 0 10px rgba(74, 222, 128, 0.4);
}
.twin-badge.diverged {
  border-color: var(--amber);
  background: rgba(224, 176, 79, 0.07);
  color: var(--amber);
  text-shadow: none;
}
.twin-badge.harmful {
  border-color: var(--red);
  background: rgba(224, 108, 95, 0.08);
  color: var(--red);
  text-shadow: none;
}

.twin-charts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.twin-chart { border: 1px solid var(--line); background: var(--panel); padding: 10px 12px; }
.twin-chart svg { display: block; width: 100%; height: 140px; margin-top: 6px; }
.twin-chart .series { stroke: var(--ink); stroke-width: 1; fill: none; }
.twin-chart .series.phos { stroke: var(--phos); }
.twin-chart .grid-line { stroke: var(--line); stroke-width: 1; }
.twin-chart .zero-line { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 2 3; }
.twin-chart .delta-pos { fill: rgba(74, 222, 128, 0.5); }
.twin-chart .delta-neg { fill: rgba(224, 108, 95, 0.5); }
.twin-chart .fork-line { stroke: var(--amber); stroke-width: 1; stroke-dasharray: 3 2; }
.twin-chart .fork-label { fill: var(--amber); font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; }

/* ---------- tooltip ---------- */

.tooltip {
  position: fixed;
  z-index: 10;
  pointer-events: none;
  background: var(--panel-deep);
  border: 1px solid var(--phos-dim);
  color: var(--ink);
  padding: 4px 8px;
  white-space: nowrap;
  text-transform: none;
  letter-spacing: 0.04em;
  font-size: 11px;
}

@media (max-width: 980px) {
  .world-grid { grid-template-columns: 1fr; }
  .obs-coords { display: none; }
  .twin-charts { grid-template-columns: 1fr; }
}