:root {
  color-scheme: light;

  --ink: #2b1a05;
  --gold: #ffce4a;
  --gold-dark: #e0a417;
  --leaf: #3fae5c;
  --penalty: #e6432f;

  font-family: "Trebuchet MS", "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: linear-gradient(180deg, #0f2027, #203a43 60%, #2c5364);
  color: var(--ink);
}

header {
  align-self: flex-start;
  padding: 0.4rem 0.75rem;
}

header nav a {
  color: #cfe8ff;
  font-size: 0.8rem;
  text-decoration: none;
  opacity: 0.7;
}

header nav a:hover,
header nav a:focus-visible {
  opacity: 1;
}

main {
  flex: 1;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

#game-root {
  position: relative;
  width: min(94vw, 480px);
  aspect-ratio: 3 / 4;
  border-radius: 1.25rem;
  overflow: hidden;
  box-shadow: 0 1.5rem 3rem rgb(0 0 0 / 45%);
  touch-action: none;
  user-select: none;
}

#game-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

#hud {
  position: absolute;
  inset: 0 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.6rem 0.85rem;
  font-weight: 700;
  font-size: clamp(0.85rem, 3vw, 1.05rem);
  color: #fff;
  text-shadow: 0 2px 4px rgb(0 0 0 / 55%);
  pointer-events: none;
  z-index: 3;
}

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 20%, rgb(32 58 67 / 55%), rgb(10 20 25 / 85%));
  z-index: 5;
  animation: fade-in 0.25s ease-out;
}

.overlay[hidden] {
  display: none;
}

.overlay-card {
  width: min(90%, 22rem);
  background: linear-gradient(180deg, #fff8e6, #ffe9b0);
  border: 4px solid var(--gold-dark);
  border-radius: 1.25rem;
  padding: 1.5rem 1.25rem;
  text-align: center;
  box-shadow: 0 1rem 2rem rgb(0 0 0 / 35%);
}

.title-emoji {
  font-size: clamp(2rem, 9vw, 2.75rem);
  margin: 0 0 1.25rem;
  letter-spacing: 0.15em;
}

.overlay-heading {
  font-size: 1.35rem;
  font-weight: 800;
  margin: 0 0 0.75rem;
  color: var(--ink);
}

.result-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 0.75rem;
  margin: 0 0 1.25rem;
  text-align: left;
}

.result-stats div {
  background: rgb(255 255 255 / 55%);
  border-radius: 0.6rem;
  padding: 0.4rem 0.6rem;
}

.result-stats dt {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.7;
}

.result-stats dd {
  margin: 0;
  font-weight: 700;
  font-size: 1rem;
}

.final-score {
  font-size: 2rem;
  font-weight: 800;
  margin: 0 0 1rem;
  color: var(--gold-dark);
  text-shadow: 0 2px 0 rgb(0 0 0 / 15%);
}

#final-extra {
  font-size: 0.85rem;
  margin: 0 0 1.25rem;
  opacity: 0.85;
}

button {
  font: inherit;
  font-weight: 800;
  letter-spacing: 0.05em;
  border: none;
  border-radius: 999px;
  padding: 0.85rem 1.75rem;
  font-size: 1rem;
  color: #3a2400;
  background: linear-gradient(180deg, var(--gold), var(--gold-dark));
  box-shadow: 0 0.35rem 0 #a9740a, 0 0.6rem 1rem rgb(0 0 0 / 30%);
  cursor: pointer;
  transition: transform 0.08s ease-out, box-shadow 0.08s ease-out;
}

button:hover {
  filter: brightness(1.05);
}

button:active {
  transform: translateY(0.2rem);
  box-shadow: 0 0.1rem 0 #a9740a, 0 0.3rem 0.6rem rgb(0 0 0 / 30%);
}

button:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
}

#popup-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 4;
  overflow: hidden;
}

.popup {
  position: absolute;
  transform: translate(-50%, -50%);
  font-weight: 800;
  font-size: 1.1rem;
  text-shadow: 0 2px 3px rgb(0 0 0 / 50%);
  animation: float-up 0.9s ease-out forwards;
}

.popup-positive {
  color: #7CFF6B;
}

.popup-negative {
  color: var(--penalty);
}

#touch-controls {
  position: absolute;
  inset: auto 0 0;
  height: 30%;
  display: flex;
  z-index: 2;
}

#touch-controls button {
  flex: 1;
  background: transparent;
  box-shadow: none;
  color: rgb(255 255 255 / 35%);
  font-size: 1.75rem;
  border-radius: 0;
  padding: 0;
}

#touch-controls button:active {
  background: rgb(255 255 255 / 8%);
  transform: none;
}

@keyframes float-up {
  from {
    opacity: 1;
    translate: 0 0;
  }

  to {
    opacity: 0;
    translate: 0 -2.5rem;
  }
}

@keyframes fade-in {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .overlay,
  .popup {
    animation: none;
  }
}