/* ============================================================
   BUSCAMINAS POWER · tablero clásico, celdas y estados
   ============================================================ */

.board {
  --cell: 28px;
  --gap: 0px;
  display: grid;
  grid-template-columns: repeat(var(--cols, 9), var(--cell));
  grid-auto-rows: var(--cell);
  gap: var(--gap, 0px);
  flex: none;
  padding: 3px;
  border: 2px solid;
  border-color: var(--shadow) var(--white) var(--white) var(--shadow);
  border-radius: 0;
  background: var(--face);
  box-shadow: none;
}

.cell {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--cell);
  height: var(--cell);
  padding: 0;
  border: 0;
  border-radius: 0;
  background: var(--face);
  box-shadow:
    inset 1px 1px 0 var(--white),
    inset -1px -1px 0 var(--shadow);
  color: var(--black);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: calc(var(--cell) * 0.52);
  font-weight: 700;
  line-height: 1;
  overflow: hidden;
  touch-action: manipulation;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: none;
}

.cell::before {
  display: none;
}

.cell:hover:not(.is-revealed):not(.is-flagged) {
  background: #d4d4d4;
}

.cell:active:not(.is-revealed) {
  background: #b0b0b0;
  box-shadow:
    inset 1px 1px 0 var(--shadow),
    inset -1px -1px 0 var(--white);
}

.cell:focus-visible {
  z-index: 3;
  outline: 1px dotted var(--black);
  outline-offset: -4px;
}

/* El cursor auxiliar es visual: nunca captura ni mueve el puntero real. */
body { cursor: url("../assets/cursor-classic.svg") 1 1, default; }
.app button:not(:disabled) { cursor: url("../assets/cursor-classic.svg") 1 1, pointer; }
.cell:not(.is-revealed):not(.is-flagged) { cursor: url("../assets/cursor-classic.svg") 1 1, pointer; }
.cell.is-hint-safe { z-index: 2; outline: 3px solid #008000; outline-offset: -3px; }
.cell.is-hint-mine { z-index: 2; outline: 3px solid #b00000; outline-offset: -3px; }
.hint-cursor { position: absolute; z-index: 12; width: 28px; height: 36px; pointer-events: none; background: url("../assets/cursor-classic.svg") top left / 28px 36px no-repeat; animation: hint-arrive 0.8s ease-out both; filter: drop-shadow(1px 1px 1px #000); }
@keyframes hint-arrive { from { transform: translate(-48px, -36px); opacity: 0; } to { transform: translate(0, 0); opacity: 1; } }

/* ---------------- celda descubierta ---------------- */

.cell.is-revealed {
  background: var(--face);
  box-shadow: inset 1px 1px 0 var(--shadow);
  color: var(--black);
  cursor: default;
  animation: cellOpen 0.1s ease-out both;
  animation-delay: var(--delay, 0ms);
}

.cell.is-number {
  cursor: default;
}

.cell.is-number:hover {
  background: var(--face);
}

.cell .num {
  display: block;
  color: var(--num-color, var(--black));
  font-family: var(--font-body);
  font-size: calc(var(--cell) * 0.56);
  font-weight: 700;
  line-height: 1;
  text-shadow: none;
}

.cell[data-n="1"] { --num-color: #0000ff; }
.cell[data-n="2"] { --num-color: #008000; }
.cell[data-n="3"] { --num-color: #ff0000; }
.cell[data-n="4"] { --num-color: #000080; }
.cell[data-n="5"] { --num-color: #800000; }
.cell[data-n="6"] { --num-color: #008080; }
.cell[data-n="7"] { --num-color: #000000; }
.cell[data-n="8"] { --num-color: #808080; }

.cell .ico,
.cell .icon {
  width: 62%;
  height: 62%;
  fill: currentColor;
  filter: none;
}

/* ---------------- bandera ---------------- */

.cell.is-flagged {
  background: var(--face);
  box-shadow:
    inset 1px 1px 0 var(--white),
    inset -1px -1px 0 var(--shadow);
  color: var(--red);
  animation: flagIn 0.12s ease-out;
}

.cell.is-flagged:hover {
  background: #d4d4d4;
  filter: none;
}

.cell.is-flagged .ico,
.cell.is-flagged .icon {
  width: 58%;
  height: 58%;
  color: var(--red);
  filter: none;
}

/* ---------------- minas ---------------- */

.cell.is-mine-revealed {
  background: var(--face);
  box-shadow: inset 1px 1px 0 var(--shadow);
  color: var(--black);
}

.cell.is-mine-revealed .ico,
.cell.is-mine-revealed .icon {
  width: 68%;
  height: 68%;
  filter: none;
}

.cell.is-exploded {
  z-index: 3;
  background: var(--red);
  box-shadow:
    inset 1px 1px 0 #ff8080,
    inset -1px -1px 0 #800000;
  color: var(--black);
  animation: explodeCell 0.35s ease-out both;
}

.cell.is-exploded .ico,
.cell.is-exploded .icon {
  filter: none;
}

.cell.is-exploded::after {
  content: "";
  position: absolute;
  inset: 0;
  background: #ffff80;
  pointer-events: none;
  animation: explodeFlash 0.3s ease-out forwards;
}

/* ---------------- neutralizada / congelada ---------------- */

.cell.is-defused {
  background: var(--face);
  box-shadow: inset 1px 1px 0 var(--shadow);
  color: var(--title);
  cursor: default;
}

.cell.is-defused .ico {
  width: 60%;
  height: 60%;
  opacity: 1;
  filter: none;
}

.cell-defused-tag {
  position: absolute;
  right: 1px;
  bottom: 0;
  color: var(--mint);
  font-family: var(--font-body);
  font-size: max(9px, calc(var(--cell) * 0.26));
  font-weight: 700;
  line-height: 1;
  text-shadow: none;
}

.cell.is-frozen {
  background: #c0ffff;
  box-shadow:
    inset 1px 1px 0 var(--white),
    inset -1px -1px 0 var(--shadow);
}

.cell.is-frozen.is-revealed {
  box-shadow: inset 1px 1px 0 var(--shadow);
}

.cell.is-frozen .num {
  text-shadow: none;
}

.frozen-glyph {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  filter: none;
  pointer-events: none;
  animation: frozenPulse 2s ease-in-out infinite;
}

.frozen-glyph .icon {
  width: 54%;
  height: 54%;
  opacity: 1;
}

.freeze-thaw {
  position: absolute;
  left: 14%;
  right: 14%;
  bottom: 2px;
  z-index: 3;
  height: max(3px, calc(var(--cell) * 0.08));
  overflow: hidden;
  border: 1px solid;
  border-color: var(--shadow) var(--white) var(--white) var(--shadow);
  border-radius: 0;
  background: var(--white);
  box-shadow: none;
  pointer-events: none;
}

.freeze-thaw i {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 0;
  background: var(--blue);
  box-shadow: none;
  transform-origin: left center;
  transition: transform 0.12s linear;
}

.cell.is-frozen.is-thawing {
  animation: thawShiver 0.5s ease-in-out infinite;
}

.cell.is-frozen.is-thawing .frozen-glyph {
  opacity: 0.6;
}

.cell.is-icing {
  pointer-events: none;
}

.cell.is-icing::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 5;
  border-radius: 0;
  background:
    radial-gradient(circle at 24% 22%, #ffffff 0 1px, transparent 2px),
    radial-gradient(circle at 68% 36%, #ffffff 0 1px, transparent 2px),
    radial-gradient(circle at 42% 74%, #ffffff 0 1px, transparent 2px),
    linear-gradient(160deg, #e0ffff, #80d0ff);
  box-shadow: inset 0 0 0 1px #ffffff;
  animation: iceIn 0.3s ease-out both;
  animation-delay: var(--delay, 0ms);
  pointer-events: none;
}

.cell.is-shattering {
  animation: shatterOut 0.35s ease-in both;
  pointer-events: none;
}

.cell.is-shattering::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(45deg, transparent 46%, #ffffff 48%, transparent 52%),
    linear-gradient(-35deg, transparent 44%, #c0ffff 47%, transparent 51%);
  animation: crackFlash 0.35s ease-out forwards;
  pointer-events: none;
}

/* ---------------- bandera incorrecta ---------------- */

.cell.is-wrong-flag {
  background: #ffcccc;
  box-shadow:
    inset 1px 1px 0 var(--white),
    inset -1px -1px 0 var(--shadow);
  color: var(--red);
  cursor: default;
}

.cell.is-wrong-flag .ico {
  color: var(--red);
  opacity: 0.8;
}

.wrong-x {
  position: absolute;
  z-index: 2;
  color: var(--red);
  font-family: var(--font-body);
  font-size: calc(var(--cell) * 0.7);
  font-weight: 700;
  line-height: 1;
  text-shadow: 1px 1px 0 var(--black);
}

/* ---------------- visión X ---------------- */

.cell .peek {
  position: absolute;
  inset: 0;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0;
  background: #ffffcc;
  box-shadow: inset 0 0 0 1px var(--black);
  color: var(--black);
  font-family: var(--font-body);
  font-size: calc(var(--cell) * 0.54);
  font-weight: 700;
  line-height: 1;
  text-shadow: none;
  pointer-events: none;
  animation: peekIn 0.1s ease-out both;
}

.cell .peek[data-kind="mine"] {
  background: #ffcccc;
  box-shadow: inset 0 0 0 1px var(--red);
  color: var(--red);
}

.cell .peek[data-kind="mine"] .ico {
  width: 64%;
  height: 64%;
}

.cell .peek[data-kind="empty"] {
  color: var(--shadow);
  font-size: calc(var(--cell) * 0.34);
  letter-spacing: 0.04em;
}

.cell.is-peek {
  z-index: 3;
}

/* ---------------- modos de tablero ---------------- */

.board-frame.is-xray {
  outline: 2px solid var(--title);
  outline-offset: -4px;
}

.board-frame.is-xray .board-viewport,
body.is-xray .board {
  cursor: crosshair;
}

.board-frame.is-freeze-targeting {
  outline: 2px solid var(--blue);
  outline-offset: -4px;
}

.board-frame.is-freeze-targeting .cell {
  cursor: crosshair;
}

.board-frame.is-freeze-targeting .cell:hover {
  background: #c0ffff;
}

.board-frame.is-freeze-holding {
  outline: 2px solid #00ffff;
  outline-offset: -4px;
}

.board-frame.is-hammer-targeting {
  outline: 2px solid var(--amber);
  outline-offset: -4px;
}

.board-frame.is-hammer-targeting .cell {
  cursor: crosshair;
}

.board-frame.is-hammer-targeting .cell.is-frozen {
  cursor: pointer;
}

.board-frame.is-hammer-targeting .cell.is-frozen:hover,
.cell.is-hammer-hover {
  background: #ffffcc;
  box-shadow:
    inset 1px 1px 0 var(--white),
    inset -1px -1px 0 var(--shadow);
  transform: none;
  z-index: 3;
}

.board.is-locked {
  pointer-events: none;
}

/* ---------------- despeje con rueda / doble clic ---------------- */

#board .cell.is-chord-source {
  box-shadow:
    inset 1px 1px 0 var(--shadow),
    inset -1px -1px 0 var(--white);
}

#board .cell.is-chord-preview,
#board .cell.is-chord-preview:hover {
  z-index: 2;
  background: #b0b0b0;
  box-shadow:
    inset 1px 1px 0 var(--shadow),
    inset -1px -1px 0 var(--white);
  filter: none;
  transform: none;
}

/* ---------------- zona de congelación ---------------- */

#board .cell.is-freeze-zone {
  outline: 1px solid var(--blue);
  outline-offset: -1px;
  box-shadow:
    inset 1px 1px 0 var(--white),
    inset -1px -1px 0 var(--shadow);
}

#board .cell.is-freeze-zone:not(.is-revealed) {
  background: #c0ffff;
}

/* ---------------- efectos globales ---------------- */

body.is-xray .topbar,
body.is-xray .sidebar {
  filter: none;
}

body.screen-shake .app {
  animation: screenShake 0.35s ease both;
}

body.freeze-flash .screen-flash {
  background: #c0ffff;
  animation: freezeFlash 0.45s ease-out both;
}

/* ---------------- animaciones ---------------- */

@keyframes cellOpen {
  from { opacity: 0.6; }
  to { opacity: 1; }
}

@keyframes flagIn {
  0% { transform: scale(0.85); }
  100% { transform: scale(1); }
}

@keyframes peekIn {
  from { opacity: 0.6; }
  to { opacity: 1; }
}

@keyframes explodeCell {
  0% { transform: scale(1); }
  35% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

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

@keyframes iceIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

@keyframes shatterOut {
  0% { opacity: 1; }
  100% { opacity: 0.5; }
}

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

@keyframes screenShake {
  0%, 100% { transform: translate3d(0, 0, 0); }
  20% { transform: translate3d(-4px, 2px, 0); }
  40% { transform: translate3d(4px, -2px, 0); }
  60% { transform: translate3d(-3px, -1px, 0); }
  80% { transform: translate3d(2px, 1px, 0); }
}

@keyframes freezeFlash {
  0% { opacity: 0.45; }
  100% { opacity: 0; }
}

@keyframes frozenPulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

@keyframes thawShiver {
  0%, 100% { filter: none; }
  50% { filter: brightness(1.15); }
}