:root {
  --bg: #0b0e13;
  --panel: rgba(18, 22, 28, 0.92);
  --line: #2a313b;
  --text: #e6e9ee;
  --muted: #8a94a3;
  --accent: #f0883e;
  --accent-text: #1b1208;
  --radius: 4px;
  font-family: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
}

#globe {
  position: fixed;
  inset: 0;
}

#flash {
  position: fixed;
  inset: 0;
  background: #ff9a3c;
  opacity: 0;
  pointer-events: none;
  mix-blend-mode: screen;
}

h2 {
  margin: 0 0 4px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.3;
}

p {
  margin: 0;
}

.muted {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

button {
  font: inherit;
  cursor: pointer;
  border-radius: var(--radius);
}

/* Search */

#search {
  position: fixed;
  top: 16px;
  left: 16px;
  width: min(360px, calc(100vw - 32px));
  z-index: 3;
}

#search-input {
  width: 100%;
  padding: 10px 12px;
  font: inherit;
  font-size: 15px;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  outline: none;
}

#search-input:focus {
  border-color: var(--accent);
}

#search-input:disabled {
  opacity: 0.5;
}

#search-status {
  margin-top: 6px;
  font-size: 13px;
  color: var(--muted);
}

#search-status:empty {
  display: none;
}

#search-results {
  margin: 6px 0 0;
  padding: 4px;
  list-style: none;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

#search-results button {
  display: flex;
  flex-direction: column;
  gap: 1px;
  width: 100%;
  padding: 8px;
  text-align: left;
  font-size: 13px;
  line-height: 1.4;
  color: var(--text);
  background: none;
  border: 0;
}

#search-results button:hover,
#search-results button.current {
  background: rgba(255, 255, 255, 0.06);
}

/* Panel */

#panel {
  position: fixed;
  left: 16px;
  bottom: 40px;
  width: min(360px, calc(100vw - 32px));
  padding: 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  z-index: 2;
  animation: slide-up 0.35s ease-out;
}

#panel {
  max-height: calc(100vh - 140px);
  overflow-y: auto;
}

#panel[hidden] {
  display: none;
}

.section {
  margin-top: 12px;
}

.section summary {
  cursor: pointer;
  font-size: 12px;
  color: var(--muted);
  user-select: none;
}

.section summary:hover {
  color: var(--text);
}

.rows {
  margin: 6px 0 0;
}

.rows div {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 8px;
  padding: 4px 0;
  font-size: 13px;
  line-height: 1.4;
}

.rows dt {
  color: var(--muted);
}

.rows dd {
  margin: 0;
}

.lines {
  margin-top: 14px;
  padding-top: 2px;
  border-top: 1px solid var(--line);
}

.cities {
  margin: 6px 0 0;
  padding: 0;
  list-style: none;
}

.cities li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
}

.cities button {
  padding: 4px 0;
  text-align: left;
  color: var(--text);
  background: none;
  border: 0;
}

.cities button:hover {
  color: var(--accent);
}

.cities li > .muted {
  font-size: 12px;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

/* Layer switches */

#layers {
  position: fixed;
  top: 16px;
  right: 16px;
  width: 260px;
  padding: 10px 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  z-index: 2;
}

#layers[hidden] {
  display: none;
}

.switch {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  font-size: 14px;
  cursor: pointer;
}

.switch input {
  margin: 0;
  width: 15px;
  height: 15px;
  accent-color: var(--accent);
}

.switch-row {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.info {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 18px;
  height: 18px;
  padding: 0;
  font-size: 11px;
  font-weight: 600;
  line-height: 1;
  color: var(--muted);
  background: none;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.info:hover,
.info:focus-visible,
.switch-row.open .info {
  color: var(--text);
  border-color: var(--muted);
  outline: none;
}

.tip {
  position: absolute;
  top: calc(100% + 6px);
  left: -13px;
  right: -13px;
  padding: 10px 12px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text);
  background: #1b2129;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  z-index: 4;
  display: none;
}

.info:hover + .tip,
.info:focus-visible + .tip,
.switch-row.open .tip {
  display: block;
}

#mirror-pairs {
  margin: 0 0 8px 23px;
  font-size: 12px;
}

#mirror-pairs[hidden] {
  display: none;
}

#mirror-pairs ol {
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}

#mirror-pairs button {
  padding: 2px 0;
  font-size: 13px;
  text-align: left;
  color: var(--text);
  background: none;
  border: 0;
}

#mirror-pairs button:hover {
  color: var(--accent);
}

.pair-label {
  padding: 2px 6px;
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
  color: var(--text);
  background: rgba(18, 22, 28, 0.85);
  border: 1px solid var(--line);
  border-radius: 3px;
  pointer-events: auto;
}

.pair-label:hover,
.pair-label.active {
  color: var(--accent-text);
  background: var(--accent);
  border-color: var(--accent);
}

#mirror-note {
  margin: 2px 0 6px 23px;
  font-size: 12px;
  line-height: 1.45;
  color: var(--muted);
}

.place + .place {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.label {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
  font-size: 12px;
  color: var(--muted);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.coords {
  margin-bottom: 2px;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.facts {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.5;
}

.actions {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}

.primary {
  padding: 9px 14px;
  font-weight: 600;
  color: var(--accent-text);
  background: var(--accent);
  border: 1px solid var(--accent);
}

.primary:hover {
  background: #f39a57;
}

.ghost {
  padding: 9px 14px;
  color: var(--text);
  background: none;
  border: 1px solid var(--line);
}

.ghost:hover {
  border-color: var(--muted);
}

/* Dig HUD */

#hud {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

#hud[hidden] {
  display: none;
}

#stage {
  position: absolute;
  top: 72px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100vw - 32px);
  text-align: center;
  font-size: 20px;
  font-weight: 500;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.8);
}

#stage.enter {
  animation: stage-in 0.45s ease-out;
}

#gauge {
  position: absolute;
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  height: min(52vh, 420px);
  font-size: 11px;
  color: var(--muted);
}

#gauge-bands {
  position: relative;
  display: flex;
  flex-direction: column;
  flex: 1;
  width: 10px;
  border-radius: 2px;
}

.band {
  position: relative;
  opacity: 0.85;
}

.band[data-label]::after {
  content: attr(data-label);
  position: absolute;
  left: 16px;
  top: 2px;
  white-space: nowrap;
  font-size: 11px;
  color: var(--muted);
}

#gauge-marker {
  position: absolute;
  top: calc(var(--s, 0) * 100%);
  left: -6px;
  width: 22px;
  height: 2px;
  margin-top: -1px;
  background: var(--text);
  z-index: 1;
}

#readouts {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 220px;
  margin: 0;
  padding: 12px 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

#readouts div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 5px 0;
  border-bottom: 1px solid var(--line);
}

#readouts div:last-of-type {
  border-bottom: 0;
}

#readouts dt {
  font-size: 12px;
  color: var(--muted);
}

#readouts dd {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

#readouts .note {
  margin-top: 8px;
  font-size: 11px;
  line-height: 1.4;
  color: var(--muted);
}

#skip {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 18px;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line);
  pointer-events: auto;
}

#skip:hover {
  border-color: var(--muted);
}

#clock {
  position: fixed;
  right: 16px;
  bottom: 12px;
  font-size: 12px;
  color: var(--muted);
  pointer-events: none;
}

@keyframes slide-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
}

@keyframes stage-in {
  from {
    opacity: 0;
    transform: translate(-50%, -8px);
  }
}

/* Touch pair bar (Mirror world dots have no hover on touch screens) */

#pair-bar {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: calc(100vw - 32px);
  padding: 8px 8px 8px 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  z-index: 4;
}

#pair-bar[hidden] {
  display: none;
}

#pair-text {
  flex: 1;
  min-width: 0;
  font-size: 14px;
  font-weight: 500;
}

#pair-bar .primary,
#pair-bar .ghost {
  padding: 7px 12px;
  white-space: nowrap;
}

.footnote {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

.footnote a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 2px;
}

.footnote a:hover {
  color: var(--accent);
}

#footnote {
  position: fixed;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  white-space: nowrap;
}

.footnote-layers {
  display: none;
}

/* Phone-only notice */

#mobile-note {
  position: fixed;
  top: calc(62px + env(safe-area-inset-top, 0px));
  left: 12px;
  right: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 10px 10px 12px;
  font-size: 13px;
  line-height: 1.45;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  z-index: 3;
}

#mobile-note[hidden],
body.layers-open #mobile-note,
body.digging #mobile-note {
  display: none;
}

#mobile-note p {
  flex: 1;
}

#mobile-note .ghost {
  padding: 7px 14px;
}

/* Phone-only controls */

#layers-btn,
#sheet-handle,
#clock-layers {
  display: none;
}

/* Phone */

@media (max-width: 640px) {
  :root {
    --sat: env(safe-area-inset-top, 0px);
    --sab: env(safe-area-inset-bottom, 0px);
  }

  #search {
    top: calc(12px + var(--sat));
    left: 12px;
    width: auto;
    right: 70px;
  }

  #search-input {
    height: 42px;
    font-size: 16px;
  }

  #layers-btn {
    display: block;
    position: fixed;
    top: calc(12px + var(--sat));
    right: 12px;
    width: 50px;
    height: 42px;
    padding: 0;
    font-size: 12px;
    color: var(--text);
    background: var(--panel);
    border: 1px solid var(--line);
    z-index: 3;
  }

  body.layers-open #layers-btn {
    border-color: var(--accent);
  }

  #layers {
    display: none;
    top: calc(62px + var(--sat));
    left: 12px;
    right: 12px;
    width: auto;
    max-height: 60dvh;
    overflow-y: auto;
  }

  body.layers-open #layers {
    display: block;
  }

  /* Explanations become plain text under each switch. */
  .switch-row {
    flex-wrap: wrap;
  }

  .info {
    display: none;
  }

  .tip,
  .switch-row.open .tip {
    position: static;
    display: block;
    flex-basis: 100%;
    margin: 0 0 8px 23px;
    padding: 0;
    color: var(--muted);
    background: none;
    border: 0;
  }

  .switch {
    padding: 8px 0 4px;
  }

  .switch input {
    width: 18px;
    height: 18px;
  }

  #clock {
    display: none;
  }

  #footnote {
    display: none;
  }

  .footnote-layers {
    display: block;
    margin-top: 4px;
  }

  #clock-layers {
    display: block;
    margin-top: 6px;
    padding-top: 8px;
    border-top: 1px solid var(--line);
    font-size: 12px;
    color: var(--muted);
  }

  #pair-bar {
    top: calc(62px + var(--sat));
    left: 12px;
    right: 12px;
    transform: none;
    max-width: none;
  }

  /* Panel becomes a bottom sheet. */
  #panel {
    left: 0;
    right: 0;
    bottom: 0;
    width: auto;
    max-height: 70dvh;
    padding: 0 16px calc(16px + var(--sab));
    border-width: 1px 0 0;
    border-radius: var(--radius) var(--radius) 0 0;
  }

  #sheet-handle {
    display: block;
    position: sticky;
    top: 0;
    width: calc(100% + 32px);
    height: 22px;
    margin: 0 -16px 4px;
    padding: 0;
    background: #12161c;
    border: 0;
    border-radius: 0;
    touch-action: none;
    z-index: 1;
  }

  #sheet-handle::before {
    content: '';
    display: block;
    width: 36px;
    height: 4px;
    margin: 0 auto;
    background: var(--line);
    border-radius: 2px;
  }

  #panel.collapsed {
    overflow: hidden;
  }

  #panel.collapsed .section,
  #panel.collapsed .lines,
  #panel.collapsed .facts,
  #panel.collapsed .coords,
  #panel.collapsed .place > p.muted,
  #panel.collapsed [data-state='done'] .place:first-child {
    display: none;
  }

  #panel.collapsed [data-state='done'] .place + .place {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
  }

  #panel.collapsed .actions {
    margin-top: 12px;
  }

  .actions button {
    flex: 1;
    padding: 11px 14px;
  }

  .cities button {
    padding: 8px 0;
  }

  /* Dig HUD */
  body.digging #search,
  body.digging #layers-btn {
    display: none;
  }

  #stage {
    top: calc(16px + var(--sat));
    font-size: 16px;
  }

  #gauge {
    top: calc(52px + var(--sat));
    left: 16px;
    right: 16px;
    height: auto;
    transform: none;
    flex-direction: row;
    align-items: center;
  }

  #gauge-bands {
    flex-direction: row;
    width: auto;
    height: 8px;
  }

  .band[data-label]::after {
    display: none;
  }

  #gauge-marker {
    top: -5px;
    left: calc(var(--s, 0) * 100%);
    width: 2px;
    height: 18px;
    margin: 0 0 0 -1px;
  }

  #readouts {
    top: auto;
    bottom: calc(76px + var(--sab));
    left: 12px;
    right: 12px;
    width: auto;
    transform: none;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px 12px;
    padding: 10px 12px;
  }

  #readouts div {
    flex-direction: column;
    align-items: flex-start;
    gap: 1px;
    padding: 0;
    border-bottom: 0;
  }

  #readouts dt {
    font-size: 11px;
  }

  #readouts dd {
    font-size: 13px;
  }

  #readouts .note {
    display: none;
  }

  #skip {
    bottom: calc(24px + var(--sab));
    padding: 10px 28px;
  }
}