/* ---- tokens ----------------------------------------------------------- */
:root {
  --paper: #FAFAF8;
  --panel: #FFFFFF;
  --ink: #1A2129;
  --graphite: #5A6672;
  --hairline: #D7DCD9;
  --accent: #E8590C;            /* hi-vis site orange: interaction only */
  --w0: #EAF0F7;                /* progress ramp: single blue hue, light->dark */
  --w40: #9FC2E2;
  --w70: #4A90C9;
  --w90: #1D64A8;
  --w100: #0B3D73;
  --unobs: #CDD3D8;
  --d-may: #C4453C;
  --d-jul: #DD8F2E;
  --d-dec: #2F6DB3;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; display: flex; flex-direction: column;
  background: var(--paper); color: var(--ink);
  font: 14px/1.45 var(--sans);
}

/* ---- title block ------------------------------------------------------ */
#titleblock {
  display: flex; justify-content: space-between; align-items: stretch; gap: 16px;
  border-bottom: 2px solid var(--ink); padding: 14px 20px 12px; background: var(--panel);
}
.tb-project { font: 11px/1 var(--mono); letter-spacing: 0.22em; color: var(--graphite); }
#titleblock h1 { margin: 4px 0 0; font-size: 21px; font-weight: 650; letter-spacing: -0.01em; }
.tb-fields { display: flex; gap: 0; border: 1px solid var(--hairline); }
.tb-field {
  padding: 6px 14px; border-left: 1px solid var(--hairline); font-size: 12.5px;
  display: flex; flex-direction: column; justify-content: center; gap: 2px;
}
.tb-field:first-child { border-left: 0; }
.tb-field span { font: 10px/1 var(--mono); letter-spacing: 0.18em; color: var(--graphite); }

/* ---- controls --------------------------------------------------------- */
#controls {
  display: flex; gap: 22px; align-items: center; flex-wrap: wrap;
  padding: 10px 20px; background: var(--panel); border-bottom: 1px solid var(--hairline);
}
.ctl-group { display: flex; gap: 8px; align-items: center; }
.datebtn, .zoombtn, #playbtn {
  font: 12.5px var(--mono); padding: 6px 12px; cursor: pointer;
  border: 1px solid var(--hairline); background: var(--paper); color: var(--ink);
  border-radius: 3px;
}
.datebtn.on { background: var(--ink); color: #fff; border-color: var(--ink); }
.datebtn:hover:not(.on), .zoombtn:hover, #playbtn:hover { border-color: var(--graphite); }
#playbtn { padding: 6px 10px; }
#playbtn.playing { background: var(--accent); color: #fff; border-color: var(--accent); }
.toggle { display: flex; gap: 6px; align-items: center; font-size: 13px; cursor: pointer; }
.toggle input { accent-color: var(--ink); }

/* ---- layout ----------------------------------------------------------- */
main { flex: 1; display: flex; min-height: 0; }
#viewport {
  flex: 1; position: relative; overflow: hidden; background: #EDECE7;
  cursor: grab; touch-action: none;
}
#viewport.dragging { cursor: grabbing; }
#world { position: absolute; transform-origin: 0 0; will-change: transform; touch-action: none; }
#world.animate { transition: transform 0.55s cubic-bezier(0.3, 0, 0.2, 1); }
#planimg { display: block; user-select: none; pointer-events: none; transition: filter 0.4s ease; }
#viewport.muted #planimg { filter: saturate(0.3) contrast(0.92) brightness(1.1); }
#overlay { position: absolute; inset: 0; overflow: visible; touch-action: none; }
#overlay .el { cursor: pointer; }
#overlay .el rect { transition: fill 0.45s ease, stroke 0.45s ease; }
#legend {
  position: absolute; left: 14px; bottom: 14px; z-index: 4;
  background: rgba(255,255,255,0.94); border: 1px solid var(--hairline); border-radius: 4px;
  padding: 9px 12px; display: flex; flex-direction: column; gap: 6px; font-size: 12px;
  box-shadow: 0 1px 4px rgba(26,33,41,0.08);
}
.lg-group { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.lg-title { font: 10px var(--mono); letter-spacing: 0.14em; color: var(--graphite); width: 66px; }
.lg-line { display: inline-block; width: 18px; height: 3px; border-radius: 2px; margin-right: 5px; vertical-align: middle; }
.lg-swatch { display: inline-block; width: 12px; height: 12px; border-radius: 2px; margin-right: 5px; vertical-align: middle; border: 1px solid rgba(26,33,41,0.35); }
.lg-elsample { background: var(--w70); box-shadow: 0 0 0 2px #fff, 0 0 0 3px var(--ink); }
.tb-btn {
  display: flex; align-items: center; text-align: center; padding: 0 20px;
  background: var(--ink); color: #fff; text-decoration: none;
  font: 600 12px/1.5 var(--mono); letter-spacing: 0.12em; border-radius: 3px;
}
.tb-btn:hover { background: var(--accent); }
#tooltip {
  position: absolute; pointer-events: none; display: none; z-index: 5;
  background: var(--ink); color: #fff; font: 12px var(--mono);
  padding: 5px 9px; border-radius: 3px; white-space: nowrap;
}

/* ---- side panel ------------------------------------------------------- */
#panel {
  width: 400px; min-width: 340px; border-left: 1px solid var(--hairline);
  background: var(--panel); overflow-y: auto; padding: 16px;
  display: flex; flex-direction: column; gap: 16px;
}
#zonecards { display: flex; flex-direction: column; gap: 10px; }
.zcard {
  border: 1px solid var(--hairline); border-radius: 4px; padding: 12px 14px;
  display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; cursor: pointer;
}
.zcard:hover { border-color: var(--graphite); }
.zcard h3 { margin: 0; font-size: 14px; grid-column: 1; }
.zcard .zpct { font: 24px/1 var(--mono); font-weight: 700; grid-row: 1 / 3; grid-column: 2; align-self: center; }
.zcard .zmeta { color: var(--graphite); font-size: 12px; grid-column: 1; }
.zcard svg { grid-column: 1 / 3; margin-top: 6px; }

#detail { border-top: 2px solid var(--ink); padding-top: 12px; }
#detail.empty { border-top: 1px dashed var(--hairline); }
.hint { color: var(--graphite); font-size: 13px; }
#detail h2 { margin: 0 0 2px; font-size: 16px; font-family: var(--mono); }
#detail .meta { color: var(--graphite); font-size: 12.5px; margin-bottom: 10px; }

.timeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin-bottom: 12px; }
.tl-cell { border: 1px solid var(--hairline); border-radius: 3px; padding: 7px 8px; cursor: pointer; }
.tl-cell.on { border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); }
.tl-cell .tl-date { font: 10.5px var(--mono); letter-spacing: 0.06em; }
.tl-cell .tl-state { font-size: 11.5px; margin-top: 3px; }
.tl-cell .tl-bar { height: 6px; border-radius: 3px; background: var(--w0); margin-top: 5px; position: relative; overflow: hidden; }
.tl-cell .tl-bar i { position: absolute; inset: 0 auto 0 0; border-radius: 3px; transition: width 0.5s ease; }
.tl-cell .tl-pct { font: 12px var(--mono); margin-top: 3px; }

#photobox { position: relative; border: 1px solid var(--hairline); border-radius: 3px; overflow: hidden; background: #000; }
#photobox img { width: 100%; display: block; min-height: 200px; object-fit: contain; }
.pnav {
  display: flex; justify-content: space-between; align-items: center; gap: 8px;
  font: 12px var(--mono); color: var(--graphite); padding: 6px 2px 0;
}
.pnav button {
  font-size: 16px; line-height: 1; padding: 3px 14px; cursor: pointer;
  border: 1px solid var(--hairline); background: var(--paper); border-radius: 3px;
}
.pnav button:hover { border-color: var(--graphite); }
.pnav button:active, .datebtn:active, .zoombtn:active, #playbtn:active { background: var(--hairline); }
.ainote { font-size: 12.5px; color: var(--graphite); margin-top: 8px; }
.ainote strong { color: var(--ink); }
.lbl-ok { color: #1D5C3C; font-weight: 600; }
.lbl-bad { color: #A33B32; font-weight: 600; }

footer {
  padding: 8px 20px; border-top: 1px solid var(--hairline); background: var(--panel);
  color: var(--graphite); font-size: 11.5px;
}
footer a { color: var(--graphite); }

.zcard svg { width: 100%; height: auto; }
@media (max-width: 900px) {
  body { height: auto; min-height: 100%; }
  main { flex-direction: column; }
  #viewport { min-height: 0; flex: 0 0 58vh; height: 58vh; height: 58dvh; flex-basis: 58dvh; }
  #panel { width: 100%; min-width: 0; border-left: 0; border-top: 1px solid var(--hairline); }
}
@media (max-width: 620px) {
  #titleblock { flex-direction: column; gap: 10px; padding: 10px 14px; }
  #titleblock h1 { font-size: 17px; }
  .tb-fields { display: grid; grid-template-columns: 1fr 1fr; border: 0; gap: 6px 12px; }
  .tb-field { border: 0; padding: 0; }
  .tb-btn { padding: 9px 0; justify-content: center; }
  #controls { gap: 10px; padding: 8px 12px; }
  .datebtn, .zoombtn, #playbtn { font-size: 11px; padding: 5px 8px; }
  .toggle { font-size: 12px; }
  #viewport { flex: 0 0 52vh; height: 52vh; height: 52dvh; flex-basis: 52dvh; }
  #legend { font-size: 10.5px; padding: 6px 8px; gap: 4px; right: 10px; left: 10px; bottom: 10px; }
  .lg-title { width: 58px; font-size: 9px; }
  .lg-swatch { width: 10px; height: 10px; }
  #panel { padding: 12px; }
  .tl-cell { padding: 10px 8px; }
  .pnav button { padding: 6px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  #world.animate, #overlay .el rect, .tl-cell .tl-bar i { transition: none; }
}