.map-active,
.map-active body {
  height: 100%;
  overflow: hidden;
}

.map-mode {
  --map-rail-width: 3.6rem;
  position: relative;
  height: calc(100svh - var(--mast-height));
  min-height: 28rem;
  overflow: hidden;
  background: var(--canvas);
}

.map-viewport {
  position: absolute;
  z-index: 1;
  inset: 0;
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-color: var(--accent) var(--canvas);
  cursor: url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%2728%27%20height%3D%2728%27%20viewBox%3D%270%200%2028%2028%27%3E%3Ccircle%20cx%3D%2714%27%20cy%3D%2714%27%20r%3D%2710.5%27%20fill%3D%27none%27%20stroke%3D%27%238B8E7B%27%20stroke-width%3D%271.4%27%2F%3E%3Cg%20stroke%3D%27%238B8E7B%27%20stroke-width%3D%271.4%27%3E%3Cpath%20d%3D%27M14%201.5V4%27%2F%3E%3Cpath%20d%3D%27M14%2024v2.5%27%2F%3E%3Cpath%20d%3D%27M1.5%2014H4%27%2F%3E%3Cpath%20d%3D%27M24%2014h2.5%27%2F%3E%3C%2Fg%3E%3Cpolygon%20points%3D%2714%2C4.8%2016.6%2C14%2011.4%2C14%27%20fill%3D%27%238B8E7B%27%2F%3E%3Cpolygon%20points%3D%2714%2C23.2%2016.6%2C14%2011.4%2C14%27%20fill%3D%27%23E5E3DF%27%2F%3E%3Ccircle%20cx%3D%2714%27%20cy%3D%2714%27%20r%3D%271.6%27%20fill%3D%27%230A0A0A%27%20stroke%3D%27%238B8E7B%27%20stroke-width%3D%271%27%2F%3E%3C%2Fsvg%3E") 14 14, default;
}

.map-canvas {
  position: relative;
  width: 100%;
  height: var(--map-height, 780px);
  min-width: 50rem;
  overflow: hidden;
  background: var(--canvas);
  cursor: url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%2728%27%20height%3D%2728%27%20viewBox%3D%270%200%2028%2028%27%3E%3Ccircle%20cx%3D%2714%27%20cy%3D%2714%27%20r%3D%2710.5%27%20fill%3D%27none%27%20stroke%3D%27%238B8E7B%27%20stroke-width%3D%271.4%27%2F%3E%3Cg%20stroke%3D%27%238B8E7B%27%20stroke-width%3D%271.4%27%3E%3Cpath%20d%3D%27M14%201.5V4%27%2F%3E%3Cpath%20d%3D%27M14%2024v2.5%27%2F%3E%3Cpath%20d%3D%27M1.5%2014H4%27%2F%3E%3Cpath%20d%3D%27M24%2014h2.5%27%2F%3E%3C%2Fg%3E%3Cpolygon%20points%3D%2714%2C4.8%2016.6%2C14%2011.4%2C14%27%20fill%3D%27%238B8E7B%27%2F%3E%3Cpolygon%20points%3D%2714%2C23.2%2016.6%2C14%2011.4%2C14%27%20fill%3D%27%23E5E3DF%27%2F%3E%3Ccircle%20cx%3D%2714%27%20cy%3D%2714%27%20r%3D%271.6%27%20fill%3D%27%230A0A0A%27%20stroke%3D%27%238B8E7B%27%20stroke-width%3D%271%27%2F%3E%3C%2Fsvg%3E") 14 14, default;
}

.terrain-svg,
.route-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.terrain-svg {
  z-index: 0;
}

.route-svg {
  z-index: 3;
}

.terrain-line {
  fill: none;
  stroke: var(--line);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.terrain-line.is-minor {
  opacity: 0.42;
}

.route-complete,
.route-current,
.route-open,
.route-sealed,
.route-branch,
.lesson-route {
  fill: none;
  stroke-linecap: square;
  stroke-linejoin: miter;
  vector-effect: non-scaling-stroke;
}

.route-complete {
  stroke: var(--accent-through);
  stroke-width: 6;
}

.route-current {
  stroke: var(--accent-strong);
  stroke-width: 8;
}

.route-open {
  stroke: var(--ink);
  stroke-width: 3;
}

.route-sealed {
  stroke: var(--quiet);
  stroke-width: 4;
  stroke-dasharray: 8 10;
}

.route-branch {
  stroke: var(--accent-strong);
  stroke-width: 2;
}

.route-branch.is-sealed {
  stroke: var(--quiet);
  stroke-dasharray: 5 8;
}

.lesson-route {
  stroke-width: 2;
}

.lesson-route.is-complete {
  stroke: var(--accent-through);
}

.lesson-route.is-current {
  stroke: var(--accent-strong);
  stroke-width: 5;
}

.lesson-route.is-reachable {
  stroke: var(--ink);
}

.lesson-route.is-sealed {
  stroke: var(--quiet);
  stroke-dasharray: 5 7;
}

.phase-edge-index {
  position: absolute;
  z-index: 35;
  inset: 0 auto 0 0;
  display: flex;
  width: var(--map-rail-width);
  flex-direction: column;
  border-right: 1px solid var(--line-strong);
  background: var(--canvas);
}

.phase-edge-button {
  display: grid;
  min-height: 2.8rem;
  flex: 1;
  place-items: center;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font: 600 0.58rem var(--font-mono);
}

.phase-edge-button span {
  max-height: 5.8rem;
  overflow: hidden;
  letter-spacing: 0.07em;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
  writing-mode: vertical-rl;
}

.phase-edge-button.is-current {
  background: var(--accent);
  color: var(--ink);
}

.phase-edge-button.is-sealed {
  color: var(--quiet-strong);
}

.phase-edge-button:hover {
  background: var(--panel-raised);
  color: var(--ink);
}

.map-current,
.route-key,
.nearest-readout {
  position: absolute;
  z-index: 25;
}

.map-current {
  top: 1.7rem;
  left: 5.2rem;
  width: min(18rem, 24vw);
  padding-left: 0.9rem;
  border-left: 1px solid var(--accent-strong);
  pointer-events: none;
}

.map-current > span,
.map-current > p,
.map-current dt,
.route-key,
.nearest-readout {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.map-current > span {
  color: var(--accent-strong);
}

.map-current h1 {
  max-width: 8ch;
  margin: 0.55rem 0;
  font: 700 clamp(2.25rem, 4vw, 4rem)/0.82 var(--font-display);
  letter-spacing: -0.065em;
  text-transform: uppercase;
  view-transition-name: current-lesson-title;
}

.map-current > p {
  max-width: 17rem;
  margin: 0;
  color: var(--dim);
  line-height: 1.45;
}

.map-current dl {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0.8rem 0 0;
  padding-top: 0.6rem;
  border-top: 1px solid var(--line);
}

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

.map-current dd {
  margin: 0.15rem 0 0;
  font: 600 1rem var(--font-display);
}

.route-key {
  right: 1.25rem;
  bottom: 1.25rem;
  color: var(--muted);
  line-height: 1.9;
  pointer-events: none;
}

.route-key div {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.route-key i {
  display: block;
  width: 1.5rem;
  height: 0.18rem;
}

.complete-key {
  background: var(--accent-strong);
}

.open-key {
  border-top: 0.18rem solid var(--ink);
}

.sealed-key {
  border-top: 0.18rem dashed var(--quiet);
}

.nearest-readout {
  right: 1.25rem;
  top: 1.25rem;
  max-width: 18rem;
  padding: 0.3rem 0.5rem;
  background: var(--canvas);
  color: var(--muted);
  text-align: right;
  pointer-events: none;
}

.map-compass {
  position: absolute;
  z-index: 12;
  width: 2.5rem;
  height: 2.5rem;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.map-compass svg {
  display: block;
  width: 100%;
  height: 100%;
}

.compass-ring {
  stroke: var(--line-strong);
}

.compass-ticks {
  stroke: var(--muted);
}

.compass-north {
  fill: var(--accent-strong);
}

.compass-south {
  fill: var(--muted);
}

.compass-hub {
  fill: var(--ink);
  stroke: var(--canvas);
  stroke-width: 1;
}

.compass-label {
  position: absolute;
  top: 50%;
  padding: 0.18rem 0.45rem;
  background: var(--canvas);
  color: var(--accent-strong);
  font: 700 0.55rem var(--font-mono);
  letter-spacing: 0.12em;
  white-space: nowrap;
  text-transform: uppercase;
  transform: translateY(-50%);
}

.map-compass.is-label-left .compass-label {
  right: calc(100% + 0.45rem);
}

.map-compass.is-label-right .compass-label {
  left: calc(100% + 0.45rem);
}

.map-phase-title {
  position: absolute;
  z-index: 1;
  right: 0;
  left: calc(var(--map-rail-width) + 0.85rem);
  height: 1px;
  border-top: 1px solid var(--line-strong);
  pointer-events: none;
}

.map-phase-title span {
  position: absolute;
  top: 0;
  left: var(--phase-label-left, 0);
  padding: 0.2rem 0.55rem 0.2rem 0;
  background: var(--canvas);
  color: var(--muted);
  font: 650 0.53rem var(--font-mono);
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
  transform: translateY(-50%);
}

.checkpoint {
  position: absolute;
  z-index: 6;
  display: grid;
  width: 15rem;
  min-height: 2.2rem;
  grid-template-columns: 2.2rem 1fr;
  gap: 0.55rem;
  align-items: center;
  color: var(--ink);
  text-align: left;
  transform: translateY(-50%);
}

.checkpoint.is-left {
  grid-template-columns: 1fr 2.2rem;
  text-align: right;
  transform: translate(-100%, -50%);
}

.checkpoint.is-left .checkpoint-marker {
  grid-column: 2;
}

.checkpoint.is-left .checkpoint-copy {
  grid-row: 1;
  grid-column: 1;
}

.checkpoint-marker {
  display: grid;
  width: 2.2rem;
  height: 2.2rem;
  place-items: center;
  border: 2px solid var(--ink);
  background: var(--canvas);
  font: 700 0.58rem var(--font-mono);
  clip-path: circle(50%);
}

.checkpoint-copy small,
.checkpoint-copy strong,
.checkpoint-copy span {
  display: block;
}

.checkpoint-copy {
  position: relative;
  padding-block: 0.15rem;
  background: var(--canvas);
}

.checkpoint-copy small,
.checkpoint-copy span {
  overflow: hidden;
  color: var(--muted);
  font: 600 0.47rem var(--font-mono);
  letter-spacing: 0.07em;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.checkpoint-copy strong {
  margin: 0.08rem 0;
  font: 650 0.86rem/0.95 var(--font-display);
  letter-spacing: -0.025em;
}

.checkpoint.is-completed .checkpoint-marker {
  border-color: var(--accent-strong);
  background: var(--accent);
}

.checkpoint.is-current .checkpoint-marker {
  width: 2.7rem;
  height: 2.7rem;
  border: 0.35rem solid var(--accent-strong);
  font-size: 0.64rem;
}

.checkpoint.is-sealed {
  color: var(--quiet-strong);
}

.checkpoint.is-sealed .checkpoint-marker {
  border-style: dashed;
  border-color: var(--quiet);
}

.checkpoint:hover .checkpoint-copy strong,
.checkpoint:focus-visible .checkpoint-copy strong {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.2rem;
}

.checkpoint.is-nearest .checkpoint-copy small {
  color: var(--accent-strong);
}

.lesson-switchbacks {
  position: absolute;
  z-index: 8;
  inset: 0;
  pointer-events: none;
}

.switchback-stop {
  position: absolute;
  right: 0;
  left: 0;
  height: 1px;
}

.switchback-connector {
  position: absolute;
  top: 0;
  height: 1px;
  background: var(--line-strong);
}

.switchback-label {
  position: absolute;
  top: 0;
  display: grid;
  width: 13rem;
  min-height: 2.1rem;
  grid-template-columns: 1.8rem minmax(0, 1fr);
  gap: 0.35rem;
  align-items: center;
  padding: 0.22rem 0.35rem;
  border-top: 1px solid var(--line-strong);
  background: var(--canvas);
  color: var(--dim);
  text-align: left;
  transform: translateY(-50%);
  pointer-events: auto;
}

.switchback-stop.is-left .switchback-label {
  text-align: right;
  transform: translate(-100%, -50%);
}

.switchback-label b,
.switchback-label span {
  font-family: var(--font-mono);
  font-size: 0.48rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.switchback-label b {
  color: var(--accent-strong);
}

.switchback-label strong {
  overflow-wrap: anywhere;
  font-size: 0.72rem;
  line-height: 1.15;
}

.switchback-label span {
  grid-column: 2;
  overflow: hidden;
  color: var(--muted);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.switchback-label[aria-current="step"] {
  border-top-color: var(--accent-strong);
  color: var(--accent-strong);
}

.switchback-label.is-sealed,
.switchback-label.is-sealed span {
  color: var(--quiet-strong);
}

.course-ledger {
  position: fixed;
  z-index: 100;
  inset: var(--mast-height) 0 0;
  display: grid;
  grid-template-rows: auto 1fr;
  background: var(--canvas);
}

.course-ledger > header {
  display: flex;
  min-height: 4.75rem;
  align-items: center;
  justify-content: space-between;
  padding-left: 1.5rem;
  border-bottom: 1px solid var(--line-strong);
}

.course-ledger > header span,
.course-ledger > header button {
  color: var(--muted);
  font: 600 0.62rem var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.course-ledger > header h2 {
  margin: 0.2rem 0 0;
  font: 650 1.75rem/1 var(--font-display);
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

.course-ledger > header button {
  align-self: stretch;
  padding: 0 1.5rem;
  border-left: 1px solid var(--line-strong);
}

.course-ledger > ol {
  margin: 0;
  padding: 0;
  overflow: auto;
  list-style: none;
  counter-reset: ledger-module;
}

.ledger-module {
  display: grid;
  min-height: 5.5rem;
  grid-template-columns: 3.5rem minmax(12rem, 0.55fr) 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 0.9rem 1.5rem;
  border-bottom: 1px solid var(--line);
  counter-increment: ledger-module;
}

.ledger-module::before {
  content: counter(ledger-module, decimal-leading-zero);
  color: var(--accent-strong);
  font: 600 0.68rem var(--font-mono);
}

.ledger-module.is-current {
  background: var(--accent);
}

.ledger-module h3 {
  margin: 0;
  font: 650 clamp(1.3rem, 2.7vw, 2.6rem)/0.95 var(--font-display);
  letter-spacing: -0.04em;
}

.ledger-lessons {
  display: flex;
  flex-wrap: wrap;
}

.ledger-lesson {
  padding: 0.5rem 0.65rem;
  border-left: 1px solid var(--line);
  border-top: 1px solid var(--line);
  color: var(--dim);
  font-size: 0.76rem;
  text-align: left;
}

.ledger-lesson[aria-current="step"] {
  background: var(--accent);
  color: var(--ink);
}

.ledger-lesson[aria-disabled="true"],
.ledger-meta.is-sealed {
  color: var(--quiet-strong);
}

.ledger-meta {
  color: var(--muted);
  font: 600 0.6rem var(--font-mono);
  letter-spacing: 0.08em;
  text-align: right;
  text-transform: uppercase;
}

@media (max-width: 1000px) {
  .map-current {
    width: 14rem;
  }

  .map-current h1 {
    font-size: 2.6rem;
  }

  .map-current > p,
  .map-current dl,
  .route-key {
    display: none;
  }

  .checkpoint {
    width: 12rem;
  }

  .switchback-label {
    width: 10rem;
  }

  .ledger-module {
    grid-template-columns: 3rem 1fr auto;
  }

  .ledger-lessons {
    grid-column: 2 / 4;
  }
}

@media (max-width: 700px) {
  .map-mode {
    --map-rail-width: 2.7rem;
  }

  .phase-edge-button span {
    display: none;
  }

  .map-current {
    top: 1rem;
    left: 3.3rem;
    width: 11.5rem;
  }

  .map-current h1 {
    font-size: 2rem;
  }

  .nearest-readout {
    top: auto;
    right: 0.5rem;
    bottom: 0.5rem;
    max-width: 13rem;
  }

  .checkpoint {
    width: 10.5rem;
    grid-template-columns: 1.9rem 1fr;
    gap: 0.35rem;
  }

  .checkpoint.is-left {
    grid-template-columns: 1fr 1.9rem;
  }

  .checkpoint-marker {
    width: 1.9rem;
    height: 1.9rem;
  }

  .checkpoint.is-current .checkpoint-marker {
    width: 2.35rem;
    height: 2.35rem;
    border-width: 0.3rem;
  }

  .checkpoint-copy strong {
    font-size: 0.72rem;
  }

  .switchback-label {
    width: 9.5rem;
  }

  .map-phase-title span {
    font-size: 0.45rem;
  }

  .course-ledger > header {
    padding-left: 1rem;
  }

  .ledger-module {
    grid-template-columns: 2rem 1fr;
    padding: 1rem;
  }

  .ledger-lessons,
  .ledger-meta {
    grid-column: 2;
  }

  .ledger-meta {
    text-align: left;
  }
}