:root {
  --cave: #1e2a19;
  --cave-deep: #111a0f;
  --grass: #79b457;
  --cream: #f6ead6;
  --cream-dim: rgba(246, 234, 214, 0.72);
  --straw: #e2c25a;
  --straw-deep: #a97d2e;
  --jade: #7fd4a3;
  --ink: rgba(8, 18, 6, 0.55);
  --ink-strong: rgba(8, 18, 6, 0.78);
  --hud-bottom: 96px; /* height of the bottom HUD row; main.js measures it */
  --font: "Fredoka", ui-rounded, "SF Pro Rounded", "Nunito", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--cave-deep);
  color: var(--cream);
  font-family: var(--font);
  font-size: 16px;
  -webkit-tap-highlight-color: transparent;
}

canvas#board {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}

.hud {
  position: fixed;
  inset: 0;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: max(14px, env(safe-area-inset-top)) 18px max(14px, env(safe-area-inset-bottom));
}

.hud-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.hud-bottom { align-items: flex-end; }

.title {
  display: flex;
  align-items: baseline;
  gap: 14px;
  min-width: 0;
}

.brand {
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--straw);
  letter-spacing: 0.01em;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.4);
}

.level-name {
  font-size: 1.05rem;
  color: var(--cream);
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.4);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.buttons {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  pointer-events: auto;
}
button, .moves { white-space: nowrap; }

.moves {
  color: var(--cream-dim);
  padding-right: 6px;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.4);
}

button {
  font: inherit;
  font-weight: 600;
  color: var(--cream);
  background: var(--ink);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 999px;
  padding: 7px 14px;
  cursor: pointer;
  pointer-events: auto;
  transition: background 120ms ease, transform 80ms ease;
}

button:hover { background: var(--ink-strong); }
button:active { transform: translateY(1px); }
button:focus-visible { outline: 2px solid var(--straw); outline-offset: 2px; }
button[disabled] { opacity: 0.4; cursor: default; }

button.primary {
  background: var(--straw);
  color: #2b3a12;
  border-color: transparent;
}
button.primary:hover { background: #ebd27a; }

.hint {
  margin: 0;
  max-width: 44ch;
  color: var(--cream-dim);
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.5);
  line-height: 1.35;
  transition: opacity 400ms ease;
}
.hint.faded { opacity: 0.45; }

/* Touch controls: only on coarse pointers */
.dpad {
  position: fixed;
  right: 18px;
  bottom: var(--hud-bottom);
  display: none;
  grid-template-columns: repeat(3, 52px);
  grid-template-rows: repeat(3, 52px);
  gap: 4px;
}
.dpad button {
  border-radius: 14px;
  padding: 0;
  font-size: 1.1rem;
}
.dpad button[data-dir="up"] { grid-area: 1 / 2; }
.dpad button[data-dir="left"] { grid-area: 2 / 1; }
.dpad button[data-dir="right"] { grid-area: 2 / 3; }
.dpad button[data-dir="down"] { grid-area: 3 / 2; }
@media (pointer: coarse) {
  .dpad { display: grid; }
}
@media (pointer: coarse) and (orientation: landscape) {
  .dpad { bottom: auto; top: 50%; transform: translateY(-50%); }
}
@media (pointer: coarse) and (orientation: portrait) {
  .toast { bottom: calc(var(--hud-bottom) + 176px); }
}
@media (max-width: 560px) and (orientation: portrait) {
  .panel {
    top: auto;
    bottom: calc(var(--hud-bottom) + 194px);
    transform: translateX(-50%);
    animation: fade 200ms ease-out;
  }
}

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(76px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px 10px 18px;
  border-radius: 16px;
  background: var(--ink-strong);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  animation: rise 220ms ease-out;
}
.toast[hidden] { display: none; }
.toast-text { color: var(--cream); }

.panel {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: min(360px, calc(100vw - 32px));
  padding: 26px 26px 22px;
  border-radius: 22px;
  background: rgba(30, 42, 25, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
  text-align: center;
  animation: pop 260ms cubic-bezier(0.2, 1.4, 0.4, 1);
}
.panel[hidden] { display: none; }
.panel h2 {
  margin: 0 0 6px;
  font-size: 2rem;
  font-weight: 600;
  color: var(--straw);
}
.win-stats {
  margin: 0 0 8px;
  color: var(--cream-dim);
  line-height: 1.4;
}
.win-score {
  margin: 0 0 18px;
  color: var(--jade);
  font-weight: 600;
  font-size: 1.15rem;
}
.panel .buttons { justify-content: center; }

.overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(8, 14, 6, 0.78);
  animation: fade 160ms ease-out;
}
.overlay[hidden] { display: none; }
.overlay-card {
  width: min(680px, 100%);
  max-height: 100%;
  overflow: auto;
  padding: 22px 24px 26px;
  border-radius: 22px;
  background: rgba(30, 42, 25, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}
.overlay-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.overlay-head h2 {
  margin: 0;
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--straw);
}
.overlay-help {
  margin: 8px 0 18px;
  color: var(--cream-dim);
  max-width: 60ch;
  line-height: 1.4;
}
.level-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}
.level-tile {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 12px 14px;
  border-radius: 16px;
  text-align: left;
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.06);
  font-weight: 400;
  white-space: normal; /* buttons are nowrap; tile text must wrap to fit */
  min-width: 0;
}
.level-tile .num {
  font-weight: 600;
  color: var(--straw);
}
.level-tile .nm { color: var(--cream); }
.level-tile .st {
  font-size: 0.85rem;
  color: var(--cream-dim);
}
.level-tile.done { border-color: rgba(226, 194, 90, 0.55); }
.level-tile.current { background: rgba(226, 194, 90, 0.14); }
.level-tile[disabled] .nm { color: var(--cream-dim); }

.total-score {
  margin-left: auto;
  margin-right: 12px;
  color: var(--jade);
  font-weight: 600;
}
.overlay-card h3 {
  margin: 0 0 4px;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--straw);
}
.wild {
  margin: 0 0 22px;
  padding: 16px 18px 18px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(226, 194, 90, 0.25);
}
.wild .overlay-help { margin: 2px 0 12px; }
.wild-options {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
}
.wild-options fieldset {
  margin: 0;
  padding: 0;
  border: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.wild-options legend {
  width: 100%;
  padding: 0;
  margin-bottom: 6px;
  font-size: 0.85rem;
  color: var(--cream-dim);
}
.wild-options label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--ink);
  border: 1px solid rgba(255, 255, 255, 0.08);
  cursor: pointer;
  user-select: none;
}
.wild-options label:has(input:checked) {
  background: rgba(226, 194, 90, 0.18);
  border-color: rgba(226, 194, 90, 0.6);
}
.wild-options input { accent-color: var(--straw); margin: 0; }
.wild-foot {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-top: 16px;
}
.wild-stats { color: var(--cream-dim); font-size: 0.9rem; }

.growing {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-radius: 999px;
  background: var(--ink-strong);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  animation: fade 160ms ease-out;
}
.growing[hidden] { display: none; }
.growing-sprout {
  width: 14px;
  height: 14px;
  border-radius: 50% 0;
  background: var(--grass);
  animation: sprout 900ms ease-in-out infinite;
}
@keyframes sprout {
  0%, 100% { transform: rotate(-20deg) scale(0.8); }
  50% { transform: rotate(25deg) scale(1.1); }
}

@keyframes rise {
  from { opacity: 0; transform: translate(-50%, 8px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}
@keyframes pop {
  from { opacity: 0; transform: translate(-50%, -50%) scale(0.92); }
  to { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}
@keyframes fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .toast, .panel, .overlay, .growing, .growing-sprout { animation: none; }
  button { transition: none; }
}

@media (max-width: 560px) {
  .brand { display: none; }
  .hud { padding-left: 12px; padding-right: 12px; }
  .hud-bottom { flex-direction: column; align-items: stretch; gap: 10px; }
  .hud-bottom .buttons { justify-content: flex-end; }
  .hint { font-size: 0.95rem; max-width: 100%; }
  .toast { width: calc(100vw - 24px); justify-content: center; flex-wrap: wrap; }
}