/* ==========================================================================
   Board
   ========================================================================== */

.board-shell {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.board-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
}
.board-header__title {
  font-family: var(--font-display);
  font-size: var(--fs-md);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}
.board-header__role {
  font-size: var(--fs-xs);
  color: var(--color-text-mute);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.board-wrap {
  padding: var(--sp-4);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
  position: relative;
}

.board-wrap--fireable {
  border-color: rgba(56,199,192,0.45);
  box-shadow: 0 0 0 1px rgba(56,199,192,0.35), var(--shadow-md);
}

.board-wrap--dimmed { opacity: 0.72; }

.board {
  display: grid;
  gap: 3px;
  width: 100%;
  aspect-ratio: 1 / 1;
}

.cell {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 4px;
  position: relative;
  display: grid;
  place-items: center;
  transition: all var(--dur-fast) var(--ease-out);
  font-size: clamp(10px, 1.4vw, 14px);
  font-family: var(--font-mono);
  cursor: default;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  min-width: 0;
  min-height: 0;
  box-sizing: border-box;
}

.cell--interactive { cursor: pointer; }
.cell--interactive:hover {
  background: rgba(56,199,192,0.12);
  border-color: rgba(56,199,192,0.5);
  transform: scale(1.03);
  z-index: 2;
}

.cell--ship {
  background: linear-gradient(135deg, rgba(240,179,42,0.35), rgba(240,179,42,0.18));
  border-color: rgba(240,179,42,0.55);
  box-shadow: inset 0 0 6px rgba(240,179,42,0.3);
}
.cell--ship::before {
  content: "";
  width: 42%; height: 42%;
  border-radius: 2px;
  background: var(--brand-gold);
  box-shadow: 0 0 6px rgba(240,179,42,0.6);
}

.cell--placement-preview {
  background: rgba(240,179,42,0.2);
  border-color: rgba(240,179,42,0.4);
  border-style: dashed;
  cursor: pointer;
}

.cell--hit {
  background: radial-gradient(circle, rgba(230,51,61,0.55), rgba(230,51,61,0.15));
  border-color: rgba(230,51,61,0.6);
  animation: impact var(--dur-slow) var(--ease-spring);
}
.cell--hit::after {
  content: "✕";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--brand-red-hi);
  font-weight: 700;
  font-size: 1.2em;
  line-height: 1;
  text-shadow: 0 0 8px rgba(230,51,61,0.8);
  pointer-events: none;
}
.cell--hit.cell--ship::before { display: none; }

.cell--miss {
  background: rgba(126,138,194,0.15);
  border-color: rgba(126,138,194,0.3);
}
.cell--miss::after {
  content: "";
  width: 30%; height: 30%;
  border-radius: 50%;
  background: var(--navy-300);
  opacity: 0.6;
}

.cell--sunk {
  background: linear-gradient(135deg, rgba(122,23,34,0.7), rgba(230,51,61,0.35));
  border-color: rgba(230,51,61,0.7);
  animation: sunk-pulse 1.2s var(--ease-in-out);
}

.cell--last {
  outline: 2px solid var(--brand-teal-hi);
  outline-offset: -2px;
  z-index: 3;
}

.cell__label {
  font-size: 10px;
  color: var(--color-text-mute);
  opacity: 0.7;
  pointer-events: none;
}

.cell--disabled { cursor: not-allowed; }

@keyframes impact {
  0%   { opacity: 0.4; box-shadow: inset 0 0 0 2px var(--brand-red-hi); }
  50%  { opacity: 1;   box-shadow: inset 0 0 12px rgba(230,51,61,0.8); }
  100% { opacity: 1;   box-shadow: none; }
}
@keyframes sunk-pulse {
  0%, 100% { filter: brightness(1); }
  50%      { filter: brightness(1.4); }
}

/* ----- Board coordinate guides ----- */
.board-guides {
  display: grid;
  gap: 3px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--color-text-mute);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.board-guides--col { margin-bottom: 4px; padding-left: 20px; }
.board-guides--col span { text-align: center; }
.board-guides--row {
  grid-auto-flow: row;
  align-content: stretch;
  padding-right: 4px;
}
.board-guides--row span { display: grid; place-items: center; width: 16px; }

.board-with-guides {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 4px;
}

/* ----- Winner banner ----- */
.winner-banner {
  padding: var(--sp-6);
  border-radius: var(--r-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border-hi);
}
.winner-banner--victory {
  background: linear-gradient(135deg, rgba(240,179,42,0.2) 0%, rgba(230,51,61,0.2) 100%);
  border-color: rgba(240,179,42,0.5);
  box-shadow: 0 0 0 1px rgba(240,179,42,0.3), 0 18px 40px rgba(240,179,42,0.25);
}
.winner-banner--defeat {
  background: linear-gradient(135deg, rgba(36,48,90,0.5) 0%, rgba(26,35,68,0.5) 100%);
  border-color: var(--color-border-hi);
}
.winner-banner__icon {
  font-size: var(--fs-3xl);
  margin-bottom: var(--sp-3);
  line-height: 1;
}
.winner-banner__title {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  margin-bottom: var(--sp-2);
  letter-spacing: -0.02em;
}
.winner-banner--victory .winner-banner__title {
  background: linear-gradient(135deg, var(--brand-gold-hi) 0%, var(--brand-red-hi) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.winner-banner__sub {
  color: var(--color-text-dim);
  font-size: var(--fs-md);
}

/* ----- Confetti for victory ----- */
.winner-banner--victory::before,
.winner-banner--victory::after {
  content: "";
  position: absolute;
  top: -20%;
  width: 6px; height: 6px;
  background: var(--brand-gold);
  border-radius: 1px;
  opacity: 0;
}
.winner-banner--victory::before {
  left: 20%;
  animation: confetti 2.2s ease-in 0.3s infinite;
}
.winner-banner--victory::after {
  left: 75%;
  background: var(--brand-red);
  animation: confetti 2.6s ease-in 0.6s infinite;
}
@keyframes confetti {
  0%   { transform: translateY(0) rotate(0); opacity: 1; }
  100% { transform: translateY(400px) rotate(540deg); opacity: 0; }
}