Made of little things.

/*
  Stick Runner: a black-ink stickman racing across city rooftops at sunset.
  Warm sunset sky, purple buildings, yellow warning stripes at the pits.
  Colours are app-owned and do not follow the host theme.
*/

:root {
  --ink: #1d1724;
  --dusk: #2b2233;
  --sun: #ffb36b;
  --cream: #fff4dc;
  --warn: #ffcc33;
  color-scheme: dark;
  font: 14px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

:where(html, body, body *) {
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}

html,
body,
#app {
  height: 100%;
  margin: 0;
}

body {
  background: var(--ink);
  color: var(--cream);
  overflow: hidden;
}

.stage {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  height: 100%;
}

.screen {
  position: relative;
  flex: none;
}

.game {
  display: block;
  width: 100%;
  height: 100%;
  outline: none;
  touch-action: none;
}

button {
  font: inherit;
  cursor: pointer;
}

.menu-button {
  position: absolute;
  top: 6px;
  left: 6px;
  padding: 4px 10px;
  border: 2px solid var(--ink);
  border-radius: 6px;
  background: var(--cream);
  color: var(--ink);
  font-weight: 700;
  font-size: 12px;
}

/* ---------- menu ---------- */

.menu {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 8px;
  background: rgba(29, 23, 36, 0.72);
  overflow: auto;
}

.menu[hidden] {
  display: none;
}

.menu-card {
  width: min(400px, 100%);
  max-height: 100%;
  overflow: auto;
  padding: 14px 18px;
  border: 3px solid var(--ink);
  border-radius: 10px;
  background: var(--cream);
  color: var(--ink);
  box-shadow: 0 6px 0 var(--ink);
}

.menu-title {
  font-size: 26px;
  font-weight: 900;
  letter-spacing: 2px;
  text-align: center;
  font-style: italic;
}

.menu-result {
  margin-top: 4px;
  text-align: center;
  font-weight: 700;
  font-size: 16px;
  color: #b0441e;
}

.menu-result[hidden] {
  display: none;
}

.how p {
  margin: 8px 0;
}

.pit-word {
  padding: 0 4px;
  border-radius: 3px;
  background: var(--ink);
  color: var(--warn);
}

.keys {
  margin: 8px 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
}

.keys li {
  margin: 4px 0;
}

kbd {
  display: inline-block;
  min-width: 20px;
  padding: 0 4px;
  border: 1.5px solid var(--ink);
  border-bottom-width: 3px;
  border-radius: 4px;
  background: #fff;
  font: 700 11px/16px system-ui, sans-serif;
  text-align: center;
}

.menu-actions {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 10px;
}

.menu-actions button {
  min-width: 100px;
  min-height: 36px;
  padding: 6px 14px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  font-weight: 800;
}

.menu-actions button.primary {
  background: var(--warn);
}

.menu-actions button[hidden] {
  display: none;
}

.menu-actions button:focus-visible,
.menu-button:focus-visible {
  outline: 3px solid var(--sun);
  outline-offset: 2px;
}

/* On touch screens the keyboard keys are replaced with the on-screen buttons. */
.touch-mode .keys,
.touch-keys {
  display: none;
}

.touch-mode .touch-keys {
  display: block;
}

/* ---------- touch buttons ---------- */

.touch {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 900px;
  padding: 0 12px 8px;
}

.touch[hidden] {
  display: none;
}

.touch-group {
  display: flex;
  gap: 10px;
}

.touch button {
  width: 64px;
  height: 64px;
  border: 3px solid var(--cream);
  border-radius: 50%;
  background: rgba(255, 244, 220, 0.15);
  color: var(--cream);
  font-size: 22px;
  font-weight: 900;
  touch-action: none;
}

.touch button.touch-jump {
  width: 84px;
  height: 84px;
  font-size: 16px;
  border-color: var(--warn);
  color: var(--warn);
}

.touch button.held {
  background: rgba(255, 244, 220, 0.4);
}

/* ---------- small frames ---------- */

.too-small {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 8px;
  text-align: center;
  background: var(--ink);
  color: var(--warn);
  font-weight: 700;
}

.too-small[hidden] {
  display: none;
}