:root {
  color-scheme: light;
  --paper: #fbfaf7;
  --ink: #11243a;
  --muted: #617087;
  --line: #d6dde3;
  --ocean: #cce9fa;
  --land: #f0e6c7;
  --coast: #61717b;
  --grid: rgba(86, 155, 195, .32);
  --accent: #1677e8;
  --wheel-bg: rgba(245, 248, 250, .84);
}

* { box-sizing: border-box; }
html { background: var(--paper); }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
button, [role="slider"] { -webkit-tap-highlight-color: transparent; }

.page-shell {
  width: min(100%, 1180px);
  margin: 0 auto;
  padding: max(22px, env(safe-area-inset-top)) clamp(12px, 3.6vw, 30px) max(26px, env(safe-area-inset-bottom));
}
.hero {
  max-width: 860px;
  margin: 0 auto 18px;
  text-align: center;
}
h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.25rem, 6.7vw, 4.6rem);
  font-weight: 500;
  letter-spacing: -.045em;
  line-height: .98;
}
.tagline {
  margin: 13px 0 0;
  font-size: clamp(.74rem, 2.15vw, .98rem);
  font-weight: 750;
  letter-spacing: .28em;
  text-transform: uppercase;
}
.lede {
  margin: 20px auto 0;
  max-width: 820px;
  color: #334962;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(.92rem, 2.5vw, 1.16rem);
  line-height: 1.42;
}

.map-section { margin-top: 10px; }
.map-workspace {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  transition: grid-template-columns .18s ease;
}
.map-workspace.advanced-open {
  grid-template-columns: minmax(0, 1fr) 76px;
}
.map-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 2 / 1;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}
.map-stage canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}
.loading {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  padding: 8px 11px;
  border: 1px solid rgba(17, 36, 58, .08);
  border-radius: 999px;
  background: rgba(251, 250, 247, .9);
  color: var(--muted);
  font-size: .82rem;
  pointer-events: none;
  white-space: nowrap;
}
.loading[hidden] { display: none; }

/* The map alone sets the row height. The dock cannot grow that row. */
.vertical-dock {
  position: absolute;
  grid-column: 2;
  grid-row: 1;
  inset: 0;
  min-height: 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
  padding: 2px 0;
}
.vertical-dock[hidden], .axis-reset[hidden] { display: none; }
.vertical-title {
  min-height: 20px;
  display: grid;
  place-items: center;
  color: #334962;
  font-size: .66rem;
  font-weight: 780;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.vertical-wheel {
  position: relative;
  flex: 1 1 0;
  min-height: 0;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--wheel-bg);
  cursor: grab;
  user-select: none;
  touch-action: pan-x;
}
.vertical-wheel.dragging { cursor: grabbing; }
.vertical-wheel canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}
.vertical-pointer {
  position: absolute;
  inset: 50% 0 auto 0;
  height: 2px;
  transform: translateY(-1px);
  background: var(--accent);
  pointer-events: none;
}
.vertical-pointer::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: var(--accent);
}

.controls { margin-top: 8px; }
.readout-wrap {
  position: relative;
  min-height: 82px;
  display: grid;
  place-items: center;
  align-content: center;
  padding: 0 136px;
}
.readout-label {
  display: block;
  color: #334962;
  font-size: .72rem;
  font-weight: 750;
  letter-spacing: .24em;
  text-transform: uppercase;
}
.readout {
  display: block;
  margin-top: 2px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.3rem, 7.1vw, 4.1rem);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.035em;
  line-height: .95;
  white-space: nowrap;
}
.readout.dual { font-size: clamp(1.75rem, 5.9vw, 3.25rem); }
.reset-all {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  min-height: 44px;
  padding: 9px 17px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(251,250,247,.94);
  color: #35506a;
  font: inherit;
  font-size: .88rem;
  font-weight: 650;
  box-shadow: 0 1px 1px rgba(17,36,58,.02);
}
.reset-all:active { transform: translateY(calc(-50% + 1px)); }

.control-label-row {
  max-width: 920px;
  margin: 0 auto 7px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 4px;
}
.control-label {
  color: #334962;
  font-size: .71rem;
  font-weight: 780;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.axis-reset {
  min-width: 58px;
  min-height: 36px;
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(251,250,247,.9);
  color: #50657b;
  font: inherit;
  font-size: .76rem;
  font-weight: 700;
}
.axis-reset:active { transform: translateY(1px); }
.vertical-reset {
  min-width: 0;
  width: 100%;
  min-height: 38px;
  padding-inline: 4px;
}

.wheel {
  position: relative;
  width: 100%;
  height: 92px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 34px;
  background: var(--wheel-bg);
  cursor: grab;
  user-select: none;
  touch-action: pan-y;
}
.wheel.dragging { cursor: grabbing; }
.wheel canvas {
  display: block;
  width: 100%;
  height: 100%;
}
.wheel-pointer {
  position: absolute;
  inset: 0 auto 0 50%;
  width: 2px;
  transform: translateX(-1px);
  background: var(--accent);
  pointer-events: none;
}
.wheel-pointer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 50%;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  transform: translate(-50%, -2px);
  background: var(--accent);
}
.wheel-help {
  margin: 12px 0 0;
  color: #415970;
  font-size: clamp(.78rem, 2.4vw, .92rem);
  text-align: center;
}
.nowrap { white-space: nowrap; }

.more-adjustments {
  min-height: 44px;
  margin: 16px auto 0;
  padding: 8px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: #35506a;
  font: inherit;
  font-size: .85rem;
  font-weight: 700;
}
.more-adjustments .chevron { transition: transform .18s ease; }
.more-adjustments[aria-expanded="true"] .chevron { transform: rotate(180deg); }

.core-note {
  max-width: 760px;
  margin: 24px auto 0;
  color: #30455b;
  font-size: .95rem;
  line-height: 1.5;
  text-align: center;
}
.footer-note {
  margin: 26px auto 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 5px 9px;
  color: var(--muted);
  font-size: .75rem;
  text-align: center;
}
.method { flex-basis: 100%; }
.method summary {
  width: fit-content;
  min-height: 38px;
  margin: 4px auto 0;
  display: flex;
  align-items: center;
  cursor: pointer;
  color: #415970;
  font-weight: 700;
}
.method-body {
  max-width: 760px;
  margin: 0 auto;
  padding: 4px 0 0;
  line-height: 1.5;
  text-align: left;
}
.method-body p { margin: 0 0 9px; }
.data-status { font-variant-numeric: tabular-nums; }

.reset-all:focus-visible, .axis-reset:focus-visible, .wheel:focus-visible, .vertical-wheel:focus-visible, .more-adjustments:focus-visible, summary:focus-visible {
  outline: 3px solid rgba(22,119,232,.25);
  outline-offset: 3px;
}

@media (max-width: 620px) {
  .page-shell { padding-left: 10px; padding-right: 10px; }
  .hero { margin-bottom: 8px; }
  .lede { margin-top: 16px; padding: 0 7px; }
  .map-workspace { gap: 7px; }
  .map-workspace.advanced-open { grid-template-columns: minmax(0, 1fr) 66px; }
  .map-stage { min-height: 0; }
  .readout-wrap {
    min-height: 77px;
    padding: 0 92px 0 12px;
  }
  .reset-all { right: 4px; padding: 8px 13px; font-size: .8rem; }
  .wheel { height: 88px; border-radius: 28px; }
  .control-label-row { padding: 0 6px; }
  .vertical-title { font-size: .6rem; }
  .vertical-wheel { min-height: 0; }
  .axis-reset { min-width: 54px; font-size: .72rem; }
}

@media (max-width: 430px) {
  .tagline { letter-spacing: .2em; }
  .readout { font-size: 2.45rem; }
  .readout.dual { font-size: 1.7rem; }
  .readout-wrap { padding-right: 86px; }
  .reset-all { max-width: 82px; line-height: 1.15; }
  .map-workspace.advanced-open { grid-template-columns: minmax(0, 1fr) 62px; gap: 6px; }
  .vertical-dock { gap: 4px; }
  .vertical-wheel { border-radius: 26px; }
  .vertical-reset { min-height: 34px; font-size: .68rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .more-adjustments .chevron, .map-workspace { transition: none; }
}

@media (max-width: 350px) {
  .map-workspace.advanced-open { grid-template-columns: minmax(0, 1fr) 54px; gap: 5px; }
  .vertical-title { display: none; }
  .vertical-reset { min-height: 30px; }
  .vertical-wheel { min-height: 0; }
}

/* V1.4: direct rotation; portrait retains ordinary page scrolling. */
#mapCanvas { cursor: grab; touch-action: pan-y pinch-zoom; }
#mapCanvas.dragging { cursor: grabbing; }
.landscape-controls-button, .landscape-hint { display: none; }
body.expanded-view { overflow: hidden; }
.expanded-view .page-shell {
  width: 100%; max-width: none; height: 100vh; height: 100dvh;
  padding: max(6px, env(safe-area-inset-top)) max(8px, env(safe-area-inset-right)) max(6px, env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left));
}
.expanded-view .hero, .expanded-view .core-note, .expanded-view .footer-note { display: none; }
.expanded-view .map-section { position: relative; margin: 0; height: 100%; }
.expanded-view .map-workspace, .expanded-view .map-workspace.advanced-open { position: absolute; inset: 0; display: block; transition: none; }
.expanded-view .map-stage { position: absolute; inset: 0; width: 100%; height: 100%; min-height: 0; aspect-ratio: auto; }
.expanded-view #mapCanvas { touch-action: pinch-zoom; }
.expanded-view .controls {
  position: absolute; left: 50%; bottom: 4px; transform: translateX(-50%);
  width: min(440px, 68%); margin: 0; padding: 5px 12px 7px;
  background: rgba(251,250,247,.91); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--line); border-radius: 22px; box-shadow: 0 3px 18px #11243a16;
}
.expanded-view .readout-wrap { min-height: 34px; padding: 0 74px 0 4px; display: flex; justify-content: center; gap: 9px; }
.expanded-view .readout-label { font-size: .55rem; letter-spacing: .12em; }
.expanded-view .readout, .expanded-view .readout.dual { font-size: 1.5rem; margin: 0; }
.expanded-view .reset-all { right: 0; min-height: 32px; padding: 5px 10px; font-size: .7rem; }
.expanded-view .control-label-row { margin: 0; padding: 0; min-height: 0; }
.expanded-view .control-label { font-size: .56rem; }
.expanded-view .axis-reset { min-height: 28px; min-width: 44px; padding: 3px 7px; font-size: .65rem; }
.expanded-view .wheel { height: 49px; border: 0; border-radius: 12px; background: transparent; }
.expanded-view .wheel-help { display: none; }
/* The disclosure stays attached to the compact control, never outside its focus group. */
.expanded-view .more-adjustments { min-height: 28px; margin: 1px auto 0; padding: 3px 10px; font-size: .7rem; }
.expanded-view .vertical-dock { position: absolute; inset: 46px 4px 12px auto; width: 56px; max-height: calc(100% - 58px); grid-column: auto; grid-row: auto; }
.expanded-view .vertical-wheel { min-height: 0; background: rgba(251,250,247,.9); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.expanded-view .vertical-reset { min-height: 30px; }
.expanded-view .landscape-controls-button { display: block; position: absolute; z-index: 5; right: 4px; top: 4px; min-height: 36px; padding: 5px 13px; background: rgba(251,250,247,.95); border: 1px solid var(--line); border-radius: 20px; color: #35506a; font: inherit; font-size: .75rem; }
.expanded-view .landscape-hint { display: block; position: absolute; top: 9px; left: 8px; z-index: 2; color: #50657b; font-size: .72rem; pointer-events: none; }
.expanded-view .controls, .expanded-view .vertical-dock { opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .3s ease, visibility .3s; }
.expanded-view.controls-awake .controls, .expanded-view.controls-awake .vertical-dock { opacity: 1; visibility: visible; pointer-events: auto; }
.landscape-controls-button:focus-visible { outline: 3px solid rgba(22,119,232,.5); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { .expanded-view .controls, .expanded-view .vertical-dock { transition: none; } }
@media (max-width: 700px) {
  .expanded-view .readout-label { display: none; }
  .expanded-view .readout.dual { font-size: 1.3rem; }
}
.expanded-view .readout-label, .expanded-view .control-label { display: none; }
.expanded-view .readout-wrap { padding-left: 48px; }
.expanded-view .control-label-row { position: absolute; left: 12px; top: 8px; }
.expanded-view .wheel { height: 42px; }

/* V1.4.1: direct access to both axes and a smaller corner panel. */
.landscape-tilt-button { display: none; }
.expanded-view .landscape-tilt-button {
  display: block; position: absolute; z-index: 5; left: 4px; top: 4px;
  min-height: 36px; padding: 5px 12px; background: rgba(251,250,247,.95);
  border: 1px solid var(--line); border-radius: 20px; color: #35506a;
  font: inherit; font-size: .75rem;
}
.expanded-view .landscape-tilt-button[aria-pressed="true"] { background: #e7f2ff; border-color: #8fb7e6; color: #0755a9; }
.landscape-tilt-button:focus-visible { outline: 3px solid rgba(22,119,232,.5); outline-offset: 2px; }
.expanded-view .controls { left: 4px; bottom: 4px; transform: none; width: min(330px, 60%); padding: 4px 9px; border-radius: 17px; }
.expanded-view .readout, .expanded-view .readout.dual { font-size: 1.1rem; }
.expanded-view .readout-wrap { min-height: 32px; padding-left: 46px; padding-right: 70px; }
.expanded-view .control-label-row { left: 9px; top: 6px; }
.expanded-view .more-adjustments { display: none; }
.expanded-view .wheel { height: 37px; }
@media (orientation: landscape) and (max-width: 480px) {
  .expanded-view .controls { width: 70%; }
  .expanded-view .readout.dual { font-size: .95rem; }
}

/* V1.5: expansion is explicit and independent of screen orientation. */
.expand-map { position:absolute; z-index:6; top:4px; right:4px; width:40px; height:40px; border:1px solid var(--line); border-radius:50%; background:rgba(251,250,247,.92); color:#35506a; font:24px/1 sans-serif; cursor:pointer; }
.expand-map:focus-visible { outline:3px solid rgba(22,119,232,.5); outline-offset:2px; }
.map-workspace.advanced-open .expand-map { right:80px; }
.expanded-view .map-workspace .expand-map { right:4px; }
.expanded-view .landscape-controls-button { right:52px; }
.expanded-view .controls {
  left:calc(var(--map-left, 0px) + 5px);
  bottom:max(5px, calc(100% - var(--map-bottom, 100%) + 5px));
  width:min(292px, calc(var(--map-width, 100%) - 68px));
  padding:3px 8px; background:rgba(251,250,247,.68); border-color:rgba(150,170,187,.4);
  box-shadow:0 2px 10px #11243a0a; backdrop-filter:blur(5px); -webkit-backdrop-filter:blur(5px);
}
.expanded-view .readout, .expanded-view .readout.dual { font-size:1rem; }
.expanded-view .readout-wrap { min-height:30px; padding-left:42px; padding-right:66px; }
.expanded-view .wheel { height:31px; }
.expanded-view .vertical-dock {
  inset:auto;
  right:max(4px, calc(100% - var(--map-right, 100%) + 4px));
  top:max(48px, var(--map-top, 0px));
  height:max(60px, calc(var(--map-bottom, 100%) - max(48px, var(--map-top, 0px))));
  max-height:var(--map-height, calc(100% - 58px));
  width:48px;
}
.expanded-view .vertical-wheel { background:rgba(251,250,247,.68); }
@media(max-width:430px) { .map-workspace.advanced-open .expand-map { right:70px; } .expanded-view .map-workspace .expand-map { right:4px; } }

@media(max-width:380px) { .expanded-view .readout.dual {font-size:.78rem;} }

/* V1.5.1: reserve room for the controls in the normal laptop layout. */
@media (min-width: 900px) {
  body:not(.expanded-view) .page-shell { padding-top: 18px; }
  body:not(.expanded-view) .hero { max-width: 1040px; margin-bottom: 10px; }
  body:not(.expanded-view) h1 { font-size: 3rem; }
  body:not(.expanded-view) .tagline { margin-top: 9px; font-size: .8rem; }
  body:not(.expanded-view) .lede { margin-top: 12px; font-size: 1rem; line-height: 1.35; max-width: 1000px; }
  body:not(.expanded-view) .controls { max-width: 920px; margin-inline: auto; }
  body:not(.expanded-view) .readout-wrap { min-height: 62px; }
  body:not(.expanded-view) .readout { font-size: 2.8rem; }
  body:not(.expanded-view) .readout.dual { font-size: 2.4rem; }
  body:not(.expanded-view) .wheel { height: 66px; }
  body:not(.expanded-view) .wheel-help { margin-top: 7px; }
  body:not(.expanded-view) .more-adjustments { margin-top: 10px; min-height: 38px; }
  body:not(.expanded-view) .map-workspace { width: min(100%, var(--desktop-map-width, 100%)); margin-inline: auto; }
}