:root {
  --basswood: #d9bc8c;
  --basswood-dk: #c6a876;
  --basswood-lt: #e8d3af;
  --survey: #58a7b0;
  --survey-dk: #3f8892;
  --table: #22262b;
  --board: #efece5;
  --board-dk: #ddd8cc;
  --tile: #e5e1d5;
  --paper: #fbfaf6;
  --ink: #22262b;
  --ink-60: #6e7176;
  --ink-40: #9ea0a3;
  --danger: #b45f3a;
  --shadow-lg: 0 22px 60px -30px rgba(34, 38, 43, 0.28);
  --shadow-md: 0 10px 24px -14px rgba(34, 38, 43, 0.22);
  --radius: 14px;
  --radius-sm: 10px;
}

* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Helvetica, Arial, sans-serif;
  font-feature-settings: 'ss01', 'ss02';
  -webkit-font-smoothing: antialiased;
  min-height: 100dvh;
}
.mono {
  font-family: 'JetBrains Mono', ui-monospace, Menlo, monospace;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: 0;
  background: none;
}

/* ------------ topbar ------------ */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 28px;
  border-bottom: 1px solid var(--board-dk);
  background: var(--paper);
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.brand-name {
  font-family: 'Archivo', sans-serif;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--ink);
}
.brand-sub {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--ink-60);
  margin-top: 6px;
}
.brand-sub span {
  color: var(--ink);
}
.site-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid var(--board-dk);
  background: var(--paper);
  border-radius: 999px;
  font-size: 13px;
  color: var(--ink);
}
.chip-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  background: var(--table);
  color: var(--paper);
  padding: 4px 8px;
  border-radius: 6px;
}
.chip-address {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
}
.chip-dot {
  color: var(--ink-40);
}
.chip-zone {
  font-family: 'JetBrains Mono', monospace;
  color: var(--survey-dk);
  font-weight: 500;
}

/* ------------ viewer shell ------------ */
.viewer-shell {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 24px;
  padding: 24px 28px 32px;
  align-items: start;
}
@media (max-width: 1080px) {
  .viewer-shell {
    grid-template-columns: 1fr;
  }
}

/* ------------ stage ------------ */
.stage {
  position: relative;
  aspect-ratio: 16 / 10;
  min-height: 520px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--tile);
  box-shadow: var(--shadow-lg);
  isolation: isolate;
}
#canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
  touch-action: none;
}
#canvas.is-dragging {
  cursor: grabbing;
}
.stage-vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
      to top,
      rgba(0, 0, 0, 0.55) 0%,
      rgba(0, 0, 0, 0) 28%
    ),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.18) 0%, rgba(0, 0, 0, 0) 22%);
}

/* stage label bottom-left */
.stage-label {
  position: absolute;
  left: 20px;
  bottom: 74px;
  display: flex;
  align-items: baseline;
  gap: 12px;
  color: #fff;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
  pointer-events: none;
}
.stage-num {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--basswood);
}
.stage-name {
  font-family: 'Archivo', sans-serif;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.02em;
}

.accuracy-burn {
  position: absolute;
  right: 20px;
  bottom: 80px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.82);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.55);
  pointer-events: none;
  max-width: 60%;
  text-align: right;
}

.drag-hint {
  position: absolute;
  top: 20px;
  left: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(34, 38, 43, 0.7);
  color: #fff;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.02em;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0.95;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.drag-hint.is-hidden {
  opacity: 0;
}

.nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: rgba(34, 38, 43, 0.72);
  color: #fff;
  transition: background 0.16s ease, transform 0.16s ease;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.nav-btn:hover {
  background: rgba(34, 38, 43, 0.9);
}
.nav-btn:active {
  transform: translateY(-50%) scale(0.96);
}
.nav-prev {
  left: 16px;
}
.nav-next {
  right: 16px;
}

.rail {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  padding: 6px;
  background: rgba(34, 38, 43, 0.72);
  border-radius: 999px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  max-width: calc(100% - 40px);
  overflow-x: auto;
  scrollbar-width: none;
}
.rail::-webkit-scrollbar {
  display: none;
}
.rail-stop {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  color: rgba(255, 255, 255, 0.75);
  border-radius: 999px;
  font-size: 12px;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease;
}
.rail-stop:hover {
  color: #fff;
}
.rail-stop.is-active {
  background: var(--basswood);
  color: var(--table);
}
.rail-num {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.06em;
}
.rail-lbl {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
}

.autoplay-toggle {
  position: absolute;
  right: 16px;
  top: 16px;
}
#autorotate {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(34, 38, 43, 0.72);
  color: #fff;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.02em;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
#autorotate .dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--basswood);
  box-shadow: 0 0 0 3px rgba(217, 188, 140, 0.28);
  transition: background 0.2s ease;
}
#autorotate[aria-pressed='false'] .dot {
  background: var(--ink-40);
  box-shadow: none;
}

/* ------------ hotspots ------------ */
.hotspot-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
}
.hotspot {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 42px;
  height: 42px;
  display: none;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
  cursor: pointer;
  background: transparent;
  border: 0;
  color: #fff;
}
.hotspot-ring {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  border: 2px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 0 6px rgba(217, 188, 140, 0);
  animation: hotspot-pulse 2.4s ease-out infinite;
}
.hotspot-core {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: var(--basswood);
  box-shadow: 0 0 0 3px rgba(34, 38, 43, 0.35);
}
.hotspot-label {
  position: absolute;
  top: 100%;
  margin-top: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: #fff;
  background: rgba(34, 38, 43, 0.72);
  padding: 4px 8px;
  border-radius: 6px;
  white-space: nowrap;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity 0.14s ease;
}
.hotspot:hover .hotspot-label,
.hotspot:focus .hotspot-label {
  opacity: 1;
}
.hotspot:hover .hotspot-core {
  transform: scale(1.15);
}
@keyframes hotspot-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(217, 188, 140, 0.55); transform: scale(1); }
  70%  { box-shadow: 0 0 0 14px rgba(217, 188, 140, 0); transform: scale(1.08); }
  100% { box-shadow: 0 0 0 0 rgba(217, 188, 140, 0);   transform: scale(1); }
}

/* ------------ minimap ------------ */
.minimap {
  position: absolute;
  right: 16px;
  top: 68px;
  width: 208px;
  padding: 10px 12px 12px;
  background: rgba(34, 38, 43, 0.78);
  border-radius: 12px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
  transition: opacity 0.28s ease, transform 0.28s ease;
  z-index: 4;
}
.minimap.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.mm-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 6px;
}
.mm-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  letter-spacing: 0.16em;
  color: var(--basswood);
}
.mm-sub {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.55);
}
.mm-canvas {
  position: relative;
  width: 100%;
  height: 132px;
}
.mm-plate {
  position: absolute;
  border: 1px dashed rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 4px;
}
.mm-plate-l1 {
  left: 4%; top: 36%; right: 20%; bottom: 22%;
}
.mm-plate-l1-garage {
  left: 80%; top: 50%; right: 4%; bottom: 22%;
}
.mm-plate-l2 {
  left: 6%; top: 4%; right: 8%; bottom: 66%;
}
.mm-plate-yard {
  left: 4%; top: 82%; right: 30%; bottom: 4%;
  border-style: dotted;
  border-color: rgba(88, 167, 176, 0.45);
  background: rgba(88, 167, 176, 0.06);
}
.mm-plate-lbl {
  position: absolute;
  top: 4px;
  left: 6px;
  font-size: 9.5px;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.45);
}
.mm-nodes {
  position: absolute;
  inset: 0;
}
.mm-node {
  position: absolute;
  transform: translate(-50%, -50%);
  padding: 0;
  background: transparent;
  border: 0;
  color: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
  cursor: pointer;
}
.mm-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.55);
  transition: background 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.mm-node.is-upper .mm-dot {
  background: rgba(88, 167, 176, 0.65);
}
.mm-node.is-yard .mm-dot {
  background: rgba(139, 195, 74, 0.75);
  border: 1px solid rgba(139, 195, 74, 0.35);
}
.mm-node.is-active .mm-dot {
  background: var(--basswood);
  box-shadow: 0 0 0 3px rgba(217, 188, 140, 0.32);
  transform: scale(1.15);
}
.mm-node:hover .mm-dot {
  background: #fff;
}
.mm-lbl {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.85);
}
.mm-node.is-active .mm-lbl {
  color: var(--basswood);
}

/* ------------ room switcher (in panel) ------------ */
.room-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.room-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid var(--board-dk);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  font-size: 12px;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.room-btn:hover {
  border-color: var(--ink-40);
}
.room-btn.is-active {
  background: var(--table);
  color: var(--paper);
  border-color: var(--table);
}
.room-floor {
  font-size: 9.5px;
  letter-spacing: 0.08em;
  color: var(--ink-40);
  padding: 1px 4px;
  border-radius: 4px;
  background: var(--board);
}
.room-btn.is-active .room-floor {
  background: rgba(255, 255, 255, 0.12);
  color: var(--basswood);
}

/* ------------ panel ------------ */
.panel {
  position: sticky;
  top: 24px;
  padding: 22px 22px 20px;
  border-radius: var(--radius);
  background: var(--paper);
  border: 1px solid var(--board-dk);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.panel-head {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.panel-title {
  display: flex;
  align-items: center;
  gap: 10px;
}
.panel-title-lg {
  font-family: 'Archivo', sans-serif;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.08em;
}
.panel-flag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
  padding: 3px 7px;
  background: var(--basswood-lt);
  color: var(--table);
  border-radius: 4px;
}
.panel-addr {
  font-size: 14px;
  color: var(--ink-60);
}
.notice {
  padding: 10px 12px;
  background: #fbf3e2;
  border-left: 3px solid var(--basswood);
  color: var(--ink);
  border-radius: 6px;
  font-size: 12.5px;
  line-height: 1.45;
}

.specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 22px;
  margin: 4px 0 4px;
}
.specs > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 7px 0;
  border-bottom: 1px dashed var(--board-dk);
}
.specs > div:nth-last-child(-n + 2) {
  border-bottom: 0;
}
.specs dt {
  color: var(--ink-60);
  font-size: 12.5px;
}
.specs dd {
  margin: 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
}
.unit {
  color: var(--ink-40);
  font-weight: 400;
}

.control {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.control.control-room { display: none; }
.control.control-room.is-visible { display: flex; }
.control label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--ink-60);
  text-transform: uppercase;
}
.select {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border: 1px solid var(--board-dk);
  border-radius: var(--radius-sm);
  background: var(--paper);
  font-size: 13.5px;
  cursor: pointer;
}
.select:hover {
  border-color: var(--ink-40);
}
.select svg {
  color: var(--ink-40);
}
.control-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.segmented {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  background: var(--board);
  border-radius: var(--radius-sm);
}
.segmented button {
  padding: 6px 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--ink-60);
  border-radius: 7px;
  transition: background 0.15s ease, color 0.15s ease;
}
.segmented button:hover {
  color: var(--ink);
}
.segmented button.is-active {
  background: var(--table);
  color: var(--paper);
}

.stage-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.stage-tile {
  padding: 10px 12px;
  border: 1px solid var(--board-dk);
  border-radius: var(--radius-sm);
  background: var(--paper);
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 3px;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.stage-tile:hover {
  border-color: var(--ink-40);
}
.stage-tile.is-active {
  border-color: var(--table);
  background: var(--table);
  color: var(--paper);
}
.tile-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--basswood-dk);
}
.stage-tile.is-active .tile-num {
  color: var(--basswood);
}
.tile-lbl {
  font-size: 13.5px;
  font-weight: 500;
}

.cta-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 2px;
}
.btn {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 500;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn-primary {
  background: var(--table);
  color: var(--paper);
}
.btn-primary:hover {
  background: #16191d;
}
.btn-ghost {
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--board-dk);
}
.btn-ghost:hover {
  border-color: var(--ink-40);
}
.fine {
  margin: 4px 0 0;
  color: var(--ink-60);
  font-size: 11.5px;
  line-height: 1.55;
}

/* ------------ footer ------------ */
.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px 24px;
  border-top: 1px solid var(--board-dk);
  color: var(--ink-60);
  font-size: 12px;
}

/* ------------ responsive ------------ */
@media (max-width: 700px) {
  .topbar {
    padding: 14px 16px;
    gap: 10px;
  }
  .brand-sub {
    white-space: nowrap;
  }
  .chip-address,
  .chip-dot {
    display: none;
  }
  .site-chip {
    gap: 6px;
    padding: 6px 10px;
    flex-wrap: nowrap;
  }
  .chip-zone {
    white-space: nowrap;
  }
  .viewer-shell {
    padding: 14px 12px 24px;
    gap: 14px;
  }
  .stage {
    min-height: 380px;
    aspect-ratio: 4 / 5;
  }
  .stage-label {
    left: 14px;
    right: 14px;
    bottom: 110px;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .stage-name {
    font-size: 16px;
    letter-spacing: 0.04em;
  }
  .accuracy-burn {
    right: 14px;
    left: 14px;
    bottom: 74px;
    text-align: left;
    font-size: 8.5px;
    max-width: none;
  }
  .rail-lbl {
    display: none;
  }
  .rail-stop {
    padding: 8px 12px;
  }
  .rail {
    bottom: 14px;
  }
  .footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 14px 16px 20px;
  }
  .drag-hint {
    font-size: 11px;
    padding: 6px 10px;
  }
  .minimap {
    right: 10px;
    top: 60px;
    width: 156px;
    padding: 8px 10px 10px;
  }
  .mm-canvas { height: 80px; }
  .mm-lbl { display: none; }
  .hotspot-label { font-size: 10px; }
}