@import url('../global.css');

:root {
  --title-color: var(--color-backgammon);
}

.backgammon-board {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 7% minmax(0, 1fr) 7%;
  grid-template-rows: 1fr 1fr;
  gap: 0.4rem;
  aspect-ratio: 1.15;
  width: 100%;
  padding: var(--spacing-sm);
  background: var(--surface-1);
  border: 1px solid var(--line);
  border-radius: var(--border-radius-lg);
}

.bg-tl {
  grid-area: 1 / 1;
}
.bg-bar {
  grid-area: 1 / 2 / 3 / 3;
}
.bg-tr {
  grid-area: 1 / 3;
}
.bg-bl {
  grid-area: 2 / 1;
}
.bg-br {
  grid-area: 2 / 3;
}
.bg-off {
  grid-area: 1 / 4 / 3 / 5;
}

.bg-quad {
  display: flex;
  gap: 1.5%;
  padding: 2%;
  background: var(--surface-2);
  border-radius: var(--border-radius-md);
}

.bg-point {
  position: relative;
  display: flex;
  min-width: 0;
  flex: 1;
  flex-direction: column;
  align-items: center;
  padding: 0;
  border: 0;
  background: transparent;
  border-radius: 3px;
  cursor: pointer;
}

.bg-point.is-top {
  justify-content: flex-start;
}
.bg-point.is-bottom {
  justify-content: flex-end;
}

/* Alternating triangular points. */
.bg-point::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
}
.bg-point.is-top::before {
  clip-path: polygon(0 0, 100% 0, 50% 90%);
}
.bg-point.is-bottom::before {
  clip-path: polygon(50% 10%, 0 100%, 100% 100%);
}
.bg-point:nth-child(odd)::before {
  background: var(--surface-glass);
}
.bg-point:nth-child(even)::before {
  background: var(--line);
}

.bg-point.is-selected {
  box-shadow: inset 0 0 0 2px var(--text-color);
}

/* A checker the player can move this turn (only its top disc is hinted). */
.bg-point.is-movable .bg-checker:last-child {
  box-shadow:
    inset 0 0 0 2px rgba(0, 0, 0, 0.28),
    0 0 0 2px var(--color-backgammon);
}

.bg-point.is-target::after,
.bg-off.is-target::after {
  content: '';
  position: absolute;
  z-index: 2;
  left: 50%;
  top: 50%;
  width: 42%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: var(--color-backgammon);
  opacity: 0.55;
}

.bg-point:disabled,
.bg-off:disabled {
  cursor: default;
}

/* Stacked checkers (shared by points and the bar). */
.bg-checker {
  position: relative;
  z-index: 1;
  display: flex;
  width: 76%;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  border-radius: 50%;
  margin-top: -6%;
  color: var(--surface-deep);
  font-size: 0.55rem;
  font-weight: 800;
  box-shadow: inset 0 0 0 2px rgba(0, 0, 0, 0.28);
}
.bg-point.is-top .bg-checker:first-child,
.bg-point.is-bottom .bg-checker:first-child {
  margin-top: 0;
}
.bg-checker.is-seat-0 {
  background: var(--color-backgammon);
}
.bg-checker.is-seat-1 {
  background: var(--accent);
}

.bg-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-around;
  padding: 3% 0;
  background: var(--surface-deep);
  border-radius: var(--border-radius-md);
}
.bg-bar-stack {
  display: flex;
  width: 100%;
  flex: 1;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.bg-bar-stack .bg-checker {
  width: 86%;
}
.bg-bar.is-active {
  outline: 2px solid var(--color-backgammon);
}

/* Dice rolled onto the board — an overlay on the playing field, not a side
   rail. They sit on MY half (right); the opponent's turn moves them to the
   left half (.is-away) and their ring takes the roller's checker colour
   (--dice-accent, set by the game), so the dice always show whose turn it is.
   Clicks pass through to the points below. */
.bg-dice {
  position: absolute;
  left: 70%;
  top: 50%;
  z-index: 3;
  display: flex;
  gap: 0.4rem;
  transform: translate(-50%, -50%);
  pointer-events: none;
  transition: left 0.25s ease;
}
.bg-dice.is-away {
  left: 30%;
}
.bg-dice.is-rolling .dice-face {
  animation: diceTumble 0.65s ease-in-out;
}

/* Click-to-roll prompt: the dice overlay becomes a single pulsing die button. */
.bg-dice.is-prompt {
  pointer-events: auto;
  cursor: pointer;
}
.bg-dice .bg-dice-prompt {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dice-pip);
  font-size: 1.2rem;
  animation: dicePulse 1.1s ease-in-out infinite;
}
.bg-dice .dice-face {
  width: clamp(1.6rem, 6vw, 2.4rem);
  height: clamp(1.6rem, 6vw, 2.4rem);
  min-width: 0;
  padding: var(--spacing-xs);
  box-shadow:
    0 0 0 0.18rem var(--dice-accent, transparent),
    var(--shadow-lg);
  pointer-events: none;
}

/* Bear-off tray, styled as an integral part of the board (like the bar).
   Each side's borne-off total shows as one counted disc: seat 1 at the top
   (its home board is top-right), seat 0 at the bottom. */
.bg-off {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 0;
  border: 0;
  border-radius: var(--border-radius-md);
  background: var(--surface-deep);
  color: var(--text-color-muted);
  font-size: 1.1rem;
  opacity: 0.6;
  cursor: pointer;
}
.bg-off.is-target {
  color: var(--text-color);
  opacity: 1;
}
.bg-off-stack {
  display: flex;
  width: 100%;
  min-height: 1.4rem;
  align-items: center;
  justify-content: center;
}
.bg-off-stack .bg-checker {
  width: 78%;
  margin-top: 0;
  font-size: 0.6rem;
}