#loading[data-home]:not([hidden]) { display: block; padding: 0; }
#loading[data-home] .loading-track, #loading[data-home] #loading-status { display: none; }
#loading[data-home] .loading-card {
  width: 100%; min-height: 100%; border: 0; border-radius: 0;
  padding: var(--ui-top) var(--ui-right) var(--ui-bottom) var(--ui-left);
  background: transparent; box-shadow: none;
}
#loading[data-launch="start"] .loading-card {
  display: grid; grid-template-columns: minmax(0, 1fr);
  grid-template-areas: "heading" "art" "actions"; align-content: center; gap: var(--ui-gap);
}
#loading[data-launch="start"] .loading-heading { grid-area: heading; }
#loading[data-launch="start"] .loading-art-frame {
  grid-area: art; display: grid; align-items: end; min-width: 0; margin: 0;
  border: 0; background: linear-gradient(#b9e0ed, #edf5db 84%);
  box-shadow: inset 0 -4px #a5bba973;
}
#loading[data-launch="start"] .loading-art {
  width: 100%; max-height: none; aspect-ratio: 380 / 174;
}
#loading[data-launch="start"] #home-actions { grid-area: actions; }
#loading[data-launch="start"] #loading-title { font-size: clamp(35px, 10vw, 94px); text-wrap: balance; }
#loading[data-launch="start"] .launch-entry-actions { display: grid; grid-template-columns: 1fr; align-items: start; gap: 8px; }
#loading[data-launch="start"] .home-link, #loading:not([data-home], [data-failed]) .home-link { display: none; }

#launch-trains, #launch-stages { min-width: 0; }
#home-actions :where(button, a) { min-height: 48px; touch-action: manipulation; }
.launch-intro { margin: 0 0 var(--ui-gap); color: var(--ui-muted); font-size: clamp(16px, 2.2vw, 25px); font-weight: 750; }
.launch-notice {
  max-inline-size: 38rem; margin-block-start: clamp(14px, 2.5dvh, 24px);
  padding: 9px 12px; border: 1px solid var(--ui-edge); border-radius: var(--ui-radius);
  background: #fffaf0b3; color: var(--ui-muted);
  text-align: start; font-size: clamp(.8125rem, 1.35vw, .875rem); line-height: 1.55;
}
.launch-notice p { margin: 0; }
#launch-notice-title { margin-block-end: 3px; color: var(--ui-ink); font-weight: 750; }
.launch-primary, .launch-secondary {
  border-radius: var(--ui-radius); font: inherit; font-weight: 850; text-decoration: none;
}
.launch-primary { padding: 9px 20px; background: var(--ui-primary); border: 1px solid var(--ui-primary); color: #fff; }
.launch-primary:active { background: var(--ui-primary-dark); }
.launch-primary:disabled { background: var(--ui-disabled); color: var(--ui-disabled-ink); border-color: var(--ui-edge); cursor: default; }
#launch-play {
  display: inline-grid; grid-template-columns: 1fr 9px; align-items: center; gap: 12px;
  text-align: left; font-size: clamp(19px, 3vw, 25px);
  background: var(--ui-gold); color: var(--ui-gold-ink); border-color: var(--ui-gold-edge);
}
#launch-play::after {
  content: ''; width: 8px; height: 8px; border: solid currentColor;
  border-width: 2px 2px 0 0; transform: rotate(45deg);
}
#launch-play:active { background: #e8b638; }
.launch-secondary {
  background: var(--ui-paper); color: var(--ui-ink); border: 1px solid var(--ui-edge); padding: 7px 8px;
}
.launch-secondary { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-color: #84a798; }
#launch-free-menu { position: relative; min-width: 0; }
#launch-free { width: 100%; list-style: none; cursor: pointer; }
#launch-free::-webkit-details-marker { display: none; }
#launch-free::after {
  content: ''; width: 7px; height: 7px; margin: -3px 2px 0 5px;
  border: solid currentColor; border-width: 0 2px 2px 0; transform: rotate(45deg);
}
#launch-free-menu[open] #launch-free::after { transform: rotate(225deg); margin-top: 3px; }
.launch-free-options {
  position: absolute; z-index: 2; inset-block-start: calc(100% + 8px); inset-inline-end: 0;
  width: max(100%, min(240px, 82vw));
  display: grid; gap: 7px; padding: 8px;
  border: 2px solid #527263; border-radius: 13px; background: var(--ui-paper);
  box-shadow: 0 5px #45625560; transform-origin: top right;
}
.launch-free-options .kid-key { width: 100%; justify-content: flex-start; white-space: nowrap; }
#launch-free-menu[open] .launch-free-options { animation: launch-dropdown 180ms cubic-bezier(.22,1,.36,1); }
@keyframes launch-dropdown { from { opacity: 0; transform: translateY(-3px) scale(.97); } }
@media (prefers-reduced-motion: reduce) {
  #launch-free-menu[open] .launch-free-options { animation: none; }
}
#launch-editor { grid-column: 1 / -1; }
@media (hover: hover) {
  .launch-primary:not(:disabled):hover { background: var(--ui-primary-dark); }
  #launch-play:hover:not(:active) { background: #ffda6a; }
  .launch-secondary:not(:disabled):hover {
    border-color: var(--ui-primary);
  }
}
@media (min-width: 375px) {
  #loading[data-launch="start"] .launch-entry-actions { grid-template-columns: 1.2fr 1fr; }
}
@media (min-width: 640px) {
  #loading[data-launch="start"] .loading-card {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.24fr);
    grid-template-areas: "heading art" "actions art"; align-items: center; text-align: left;
  }
  #loading[data-launch="start"] #loading-title { font-size: clamp(39px, 6vw, 94px); }
  #loading[data-launch="start"] .loading-art-frame { align-self: stretch; min-height: clamp(220px, 41dvh, 460px); }
  #loading[data-launch="start"] .loading-art { height: auto; }
}
@media (min-width: 960px) {
  #loading[data-launch="start"] .loading-card { grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); }
}
@media (min-width: 1440px) {
  #loading[data-home] .loading-card { gap: 32px; }
  #loading[data-launch="start"] .loading-art-frame { min-height: min(55dvh, 620px); }
}
@media (orientation: landscape) and (max-height: 500px) and (min-width: 480px) {
  #loading[data-home] .loading-card {
    gap: 8px; padding-block: max(8px, env(safe-area-inset-top)) max(8px, env(safe-area-inset-bottom));
  }
  #loading[data-launch="start"] .loading-card {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    grid-template-areas: "heading art" "actions art"; align-items: center; text-align: left;
  }
  #loading[data-launch="start"] #loading-title { font-size: clamp(28px, 5.8vw, 53px); }
  #loading[data-launch="start"] .loading-art-frame { min-height: 0; }
  #loading[data-launch="start"] .launch-entry-actions { grid-template-columns: 1fr; }
  .launch-notice { margin-block-start: 10px; padding: 6px 9px; }
}
#loading[data-launch="stages"] {
  background: radial-gradient(#a8c2a365 1px, transparent 1.4px) 0 0 / 19px 19px, #edf2dc;
}
#loading[data-home][data-launch="stages"] .loading-card { padding: 0; }
#loading[data-launch="stages"] :is(.loading-heading, .loading-art-frame) { display: none; }

[data-region="rural"] { --region-art: url('./course-art/rural.webp'); --region-tile: url('./course-art/rural-tile.webp'); --region-position: 50% center; --region-paper: #d9e8ad; }
[data-region="coast"] { --region-art: url('./course-art/coast.webp'); --region-tile: url('./course-art/coast-tile.webp'); --region-position: 74% center; --region-paper: #c4e9ed; }
[data-region="town"] { --region-art: url('./course-art/town.webp'); --region-tile: url('./course-art/town-tile.webp'); --region-position: 58% center; --region-paper: #f6d8bc; }
[data-region="city"] { --region-art: url('./course-art/city.webp'); --region-tile: url('./course-art/city-tile.webp'); --region-position: 52% center; --region-paper: #d8dcf1; }
[data-region="valley"] { --region-art: url('./course-art/valley.webp'); --region-tile: url('./course-art/valley-tile.webp'); --region-position: 32% center; --region-paper: #d3e6ad; }
[data-region="lake"] { --region-art: url('./course-art/lake.webp'); --region-tile: url('./course-art/lake-tile.webp'); --region-position: 36% center; --region-paper: #cce6dc; }

#launch-stages:not([hidden]) {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  gap: clamp(10px, 2vw, 24px);
  padding: var(--ui-top) var(--ui-right) var(--ui-bottom) var(--ui-left);
}
#launch-stages[data-region] {
  position: relative;
  isolation: isolate;
  background: var(--region-paper);
}
#launch-stages[data-region]::before {
  content: '';
  position: absolute;
  z-index: -1;
  inset: 0;
  background: linear-gradient(180deg, #1b3e3866, transparent 29%, transparent 65%, #1d3e377a),
    var(--region-art) var(--region-position) / cover no-repeat;
}
.course-picker-top {
  display: flex;
  align-items: center;
  gap: clamp(7px, 1.6vw, 15px);
  text-align: start;
}
.course-picker-heading {
  min-width: 0;
  padding: 6px 11px;
  border-radius: 13px 11px 13px 9px;
  background: #fff9e7;
  color: #2c493b;
  border: 2px solid #587464;
  box-shadow: 0 3px #42625266;
}
#launch-stage-title { margin: 0; font-size: clamp(19px, 4.6vw, 35px); line-height: 1.17; }
#launch-stage-title:focus { outline: none; }
#launch-stage-note { margin: 4px 0 0; font-size: 13px; font-weight: 750; }
#launch-stage-back { margin-inline-start: auto; flex: none; }

#stage-list:not([hidden]) {
  display: grid;
  flex: 1;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-auto-rows: 1fr;
  gap: clamp(9px, 1.5vw, 22px);
}
#stage-list button {
  position: relative;
  display: flex;
  align-items: end;
  text-align: start;
  min-width: 0;
  min-height: clamp(119px, 20dvh, 270px);
  padding: clamp(7px, 1.4vw, 20px);
  border: 3px solid #5c7968;
  border-radius: 20px 16px 22px 17px;
  background: linear-gradient(0deg, #152b26f0, #213a3577 26%, transparent 52%),
    var(--region-tile) var(--region-position) / cover no-repeat var(--region-paper);
  color: #fff9df;
  box-shadow: 0 4px #58756770;
}
:is(#stage-list, #level-list) button:disabled { filter: grayscale(1); }
#stage-list button:disabled {
  cursor: default;
  background-image: linear-gradient(0deg, #172c26f2, #243d388c 26%, #29403328 60%), var(--region-tile);
}
#stage-list button[data-current] {
  border-color: #8c5f31;
  outline: 3px solid #ffdb7f;
  outline-offset: -6px;
}
#stage-list button strong {
  font-size: clamp(17px, 3.6vw, 33px);
  text-shadow: 0 2px #1e362d;
  line-height: 1.2;
}
.region-number, .region-status {
  position: absolute;
  top: clamp(6px, 1.2vw, 16px);
  display: grid;
  place-items: center;
  min-height: 29px;
  padding: 2px 6px;
  border: 2px solid #4b6758;
  background: #fff5d8;
  color: #2c493b;
  font-weight: 850;
  border-radius: 9px 7px 10px 7px;
}
.region-number { left: clamp(6px, 1.2vw, 16px); min-width: 29px; font-size: 18px; }
.region-status { right: clamp(6px, 1.2vw, 16px); font-size: 13px; }
.region-status .course-state-icon { display: none; }
#stage-list button:disabled .region-status .course-state-icon { display: block; width: 21px; height: 21px; }

#level-list:not([hidden]) {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  align-self: center;
  width: min(100%, 770px);
  margin-top: auto;
  gap: clamp(5px, 1.2vw, 13px);
  padding: clamp(5px, 1.2vw, 13px);
  border: 2px solid #587464;
  border-radius: 18px 13px 19px 14px;
  background: #fff8e4e8;
  box-shadow: 0 4px #2f4e3a85;
}
#level-list > * {
  position: relative;
  display: grid;
  place-items: center;
  min-width: 0;
  min-height: clamp(48px, 8.5dvh, 82px);
  border: 2px solid #64826d;
  border-radius: 14px 10px 14px 11px;
  background: var(--region-paper);
  color: #263f33;
  font-size: clamp(22px, 5vw, 38px);
  font-weight: 900;
  text-decoration: none;
  box-shadow: 0 3px #536e5e75;
}
#level-list button:disabled { background: #e7e9db; color: #556257; cursor: default; box-shadow: none; }
#level-list [data-current] { background: #ffda79; border-color: #845a2e; }
#level-list .course-state-icon { position: absolute; top: 2px; right: 2px; width: 16px; height: 16px; }
#stage-list button:focus-visible, #level-list a:focus-visible { outline: 3px solid #224d67; outline-offset: 3px; }

@media (hover: hover) {
  #stage-list button:not(:disabled):hover, #level-list a:hover { box-shadow: 0 4px #354f3c, inset 0 0 0 2px #fff3d4; }
}
@media (min-width: 640px), (orientation: landscape) and (min-width: 480px) {
  #stage-list:not([hidden]) { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (orientation: landscape) and (max-height: 500px) {
  #launch-stages:not([hidden]) { gap: 9px; }
  #stage-list button { min-height: max(89px, 23dvh); }
}

@media (prefers-reduced-motion: no-preference) {
  #loading[data-launch="start"] :is(#loading-kicker, #loading-title, .launch-intro),
  #launch-stages:not([hidden]) #launch-stage-title {
    animation: ui-text-in var(--ui-enter) var(--ui-settle) backwards;
  }
  #loading[data-launch="start"] #loading-title { animation-delay: 32ms; }
  #loading[data-launch="start"] .launch-intro { animation-delay: 60ms; }
  #loading[data-launch="start"] :is(.loading-art-frame, .launch-entry-actions),
  #launch-trains:not([hidden]) .depot-toolbar {
    animation: ui-lift-in var(--ui-panel-enter) var(--ui-settle);
  }
  #launch-trains:not([hidden]) .depot-viewport,
  #launch-stages[data-region]:not([hidden])::before {
    animation: ui-fade var(--ui-panel-enter) var(--ui-settle);
  }
  #stage-list:not([hidden]) > *, #level-list:not([hidden]) > * {
    --ui-rise: 10px;
    animation: ui-lift-in var(--ui-enter) var(--ui-settle) calc(var(--ui-order, 0) * 16ms) backwards;
  }
  #stage-list button:focus-visible, #level-list a:focus-visible { animation: none; }
}