/* Cubby — web build.
   The palette is lifted from the original Unity project: the deep teal of the
   Cubby logo background, the pale blue player, the yellow points and green gate. */

:root {
  --deep:      #071219;
  --deep-2:    #0d2530;
  --ink:       #cfeaf3;
  --ink-dim:   #7fa3b1;
  --cubby:     #c2e3ff;
  --cyan:      #6ff2ff;
  --point:     #ffea55;
  --gate:      #88ff7c;
  --danger:    #ff6b7f;

  --panel-bg:  rgba(7, 20, 27, 0.86);
  --panel-line: rgba(111, 242, 255, 0.22);

  --ui: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--deep);
  color: var(--ink);
  font-family: var(--ui);
  overflow: hidden;
  overscroll-behavior: none;
  -webkit-tap-highlight-color: transparent;
}

#stage {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
}

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

.overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.overlay[hidden] { display: none; }

/* ------------------------------------------------------------------- HUD */

.hud-row {
  position: absolute;
  top: max(0.9rem, env(safe-area-inset-top));
  left: 0;
  right: 0;
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
  padding: 0 3.5rem;
}

.hud-chip {
  background: rgba(7, 20, 27, 0.6);
  border: 1px solid var(--panel-line);
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
  font-size: clamp(0.72rem, 1.7vw, 0.9rem);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
  backdrop-filter: blur(6px);
  white-space: nowrap;
}

.hud-chip.flash { animation: chip-flash 0.35s ease-out; }

@keyframes chip-flash {
  0%   { background: rgba(255, 234, 85, 0.75); color: #071219; }
  100% { background: rgba(7, 20, 27, 0.6); color: var(--ink); }
}

.hud-hint {
  position: absolute;
  left: 50%;
  bottom: max(1.2rem, env(safe-area-inset-bottom));
  /* Clear the on-screen pads when they are showing. */
  bottom: calc(var(--hint-lift, 0px) + max(1.2rem, env(safe-area-inset-bottom)));
  transform: translateX(-50%);
  max-width: min(34rem, 88vw);
  text-align: center;
  font-size: clamp(0.75rem, 1.8vw, 0.92rem);
  color: var(--ink-dim);
  opacity: 0;
  transition: opacity 0.5s ease;
}

.hud-hint.show { opacity: 1; }

/* --------------------------------------------------------------- SCREENS */

.screen {
  display: grid;
  place-items: center;
  pointer-events: auto;
  background: radial-gradient(ellipse at center, rgba(13, 37, 48, 0.72), rgba(4, 10, 14, 0.94));
  padding: 1.5rem;
  animation: fade 0.25s ease-out;
}

@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

.panel {
  width: min(26rem, 100%);
  background: var(--panel-bg);
  border: 1px solid var(--panel-line);
  border-radius: 1.1rem;
  padding: clamp(1.4rem, 4vw, 2.2rem);
  text-align: center;
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.02) inset;
  max-height: 100%;
  overflow-y: auto;
}

.panel.wide { width: min(46rem, 100%); }

.logo {
  margin: 0 0 0.35rem;
  font-size: clamp(2.6rem, 11vw, 4.4rem);
  letter-spacing: 0.16em;
  font-weight: 800;
  color: var(--cubby);
  text-shadow: 0 0 2rem rgba(111, 242, 255, 0.45);
}

.cursor {
  display: inline-block;
  width: 0.12em;
  height: 0.78em;
  margin-left: 0.1em;
  background: var(--cyan);
  vertical-align: -0.05em;
  animation: blink 1.1s steps(1) infinite;
}

@keyframes blink { 50% { opacity: 0; } }

h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.2rem, 4vw, 1.6rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

h2.win { color: var(--gate); }

h3 {
  margin: 0 0 0.6rem;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.tagline { margin: 0 0 1.6rem; color: var(--ink-dim); font-size: 0.92rem; }

.menu { display: grid; gap: 0.55rem; margin-top: 0.4rem; }

.btn {
  font: inherit;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  font-size: 0.84rem;
  padding: 0.8rem 1.2rem;
  border-radius: 0.7rem;
  border: 1px solid var(--panel-line);
  background: rgba(111, 242, 255, 0.06);
  color: var(--ink);
  cursor: pointer;
  transition: background 0.15s, transform 0.08s, border-color 0.15s;
}

.btn:hover, .btn:focus-visible {
  background: rgba(111, 242, 255, 0.16);
  border-color: var(--cyan);
  outline: none;
}

.btn:active { transform: translateY(1px); }

.btn.primary {
  background: var(--cubby);
  border-color: var(--cubby);
  color: #05171f;
}

.btn.primary:hover, .btn.primary:focus-visible {
  background: #e2f2ff;
  border-color: #e2f2ff;
}

.btn.ghost { background: none; color: var(--ink-dim); }

.link {
  font: inherit;
  background: none;
  border: 0;
  color: var(--cyan);
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
}

.footnote { margin: 1.1rem 0 0; font-size: 0.76rem; color: var(--ink-dim); }
.footnote a { color: var(--cyan); }

.stat { margin: 0 0 0.2rem; font-size: clamp(1.8rem, 7vw, 2.6rem); font-weight: 700; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------------- LEVEL SELECT */

.chapter {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin: 1.3rem 0 0.55rem;
  text-align: left;
}

.chapter:first-child { margin-top: 0; }
.chapter h3 { margin: 0; }
.chapter-note { font-size: 0.72rem; color: var(--ink-dim); flex: 1; }
.chapter-count { font-size: 0.72rem; font-family: var(--mono); color: var(--ink-dim); }

.level-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(6.2rem, 1fr));
  gap: 0.5rem;
}

#level-grid { display: block; margin-bottom: 1.2rem; text-align: left; }

.level-card {
  font: inherit;
  text-align: left;
  padding: 0.7rem 0.8rem;
  border-radius: 0.7rem;
  border: 1px solid var(--panel-line);
  background: rgba(111, 242, 255, 0.05);
  color: var(--ink);
  cursor: pointer;
  display: grid;
  gap: 0.15rem;
  transition: background 0.15s, border-color 0.15s;
}

.level-card:hover:not(:disabled) { background: rgba(111, 242, 255, 0.15); border-color: var(--cyan); }
.level-card:disabled { opacity: 0.34; cursor: not-allowed; }
.level-card .num { font-size: 0.68rem; letter-spacing: 0.14em; color: var(--cyan); text-transform: uppercase; }
.level-card .name { font-weight: 600; font-size: 0.82rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.level-card .best { font-size: 0.72rem; color: var(--ink-dim); font-family: var(--mono); }
.level-card.cleared { border-color: rgba(136, 255, 124, 0.4); }
.level-card.cleared .num { color: var(--gate); }

/* ------------------------------------------------------------------ HELP */

.help-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: 1.6rem;
  text-align: left;
  margin-bottom: 1.4rem;
}

.keys { display: grid; grid-template-columns: auto 1fr; gap: 0.45rem 0.9rem; margin: 0; }
.keys dt { margin: 0; }
.keys dd { margin: 0; color: var(--ink-dim); font-size: 0.85rem; align-self: center; }

kbd {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 0.16rem 0.42rem;
  border-radius: 0.32rem;
  border: 1px solid var(--panel-line);
  background: rgba(111, 242, 255, 0.08);
}

.tricks { margin: 0; padding-left: 1.1rem; display: grid; gap: 0.5rem; font-size: 0.85rem; color: var(--ink-dim); }
.tricks b { color: var(--ink); }
.note { font-size: 0.78rem; color: var(--ink-dim); margin: 0.9rem 0 0; }

/* ------------------------------------------------------------- TOUCH  UI */

#touch { pointer-events: none; }

body.touch { --hint-lift: clamp(4.2rem, 15vw, 5.6rem); }

.pad {
  position: absolute;
  bottom: max(1.1rem, env(safe-area-inset-bottom));
  width: clamp(3.6rem, 13vw, 5rem);
  height: clamp(3.6rem, 13vw, 5rem);
  border-radius: 50%;
  border: 1px solid var(--panel-line);
  background: rgba(7, 20, 27, 0.5);
  color: var(--ink);
  font-size: 1.1rem;
  pointer-events: auto;
  touch-action: none;
  user-select: none;
  backdrop-filter: blur(4px);
}

.pad:active, .pad.held { background: rgba(111, 242, 255, 0.28); }
.pad-left  { left: max(1rem, env(safe-area-inset-left)); }
.pad-right { left: calc(max(1rem, env(safe-area-inset-left)) + clamp(4.3rem, 15.5vw, 6rem)); }
.pad-jump  { right: max(1rem, env(safe-area-inset-right)); }

.icon-btn {
  position: absolute;
  top: max(0.9rem, env(safe-area-inset-top));
  right: max(0.9rem, env(safe-area-inset-right));
  width: 2.3rem;
  height: 2.3rem;
  border-radius: 0.6rem;
  border: 1px solid var(--panel-line);
  background: rgba(7, 20, 27, 0.6);
  color: var(--ink);
  font-size: 0.7rem;
  cursor: pointer;
  z-index: 2;
}

.icon-btn[hidden] { display: none; }
.icon-btn:hover { background: rgba(111, 242, 255, 0.16); }

.noscript { color: var(--ink); text-align: center; padding: 3rem 1rem; font-family: var(--ui); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}