:root {
  --bg: #05070d;
  --panel: #0b1020;
  --line: #263958;
  --cyan: #00eaff;
  --pink: #ff2d9a;
  --yellow: #ffe600;
  --green: #00ff88;
  --text: #e4f2ff;
  --muted: rgba(228,242,255,0.58);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Rajdhani", sans-serif;
  overflow-x: hidden;
}

.grid-bg,
.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.grid-bg {
  background-image:
    linear-gradient(rgba(0,234,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,45,154,0.04) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.8), transparent 86%);
}

.scanlines {
  background: repeating-linear-gradient(0deg, rgba(255,255,255,0.035) 0 1px, transparent 1px 5px);
  mix-blend-mode: screen;
  opacity: 0.22;
}

.page-header {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  background: rgba(5,7,13,0.82);
}

.back-home {
  font-family: "Share Tech Mono", monospace;
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--cyan);
  text-decoration: none;
  border: 1px solid rgba(0,234,255,0.45);
  padding: 7px 11px;
}

.back-games {
  color: var(--pink);
  border-color: rgba(255,45,154,0.45);
}

.back-home:hover {
  background: rgba(0,234,255,0.1);
  box-shadow: 0 0 14px rgba(0,234,255,0.32);
}

.brand {
  margin-left: 8px;
  font-family: "Orbitron", monospace;
  font-size: clamp(22px, 4vw, 36px);
  font-weight: 900;
  letter-spacing: 6px;
  color: var(--text);
}

.brand span {
  color: var(--pink);
  text-shadow: 0 0 18px rgba(255,45,154,0.45);
}

.status {
  margin-left: auto;
  font-family: "Share Tech Mono", monospace;
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--green);
  border: 1px solid rgba(0,255,136,0.45);
  padding: 7px 10px;
}

.game-shell {
  position: relative;
  z-index: 1;
  width: min(1280px, 100%);
  margin: 0 auto;
  padding: 24px 18px 40px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 18px;
  align-items: start;
}

/* Sin panel lateral (menu y local): una sola columna, tablero centrado. */
.game-shell.solo { grid-template-columns: 1fr; }
.game-shell.solo .side-col { display: none; }

.arena-panel,
.panel {
  background: rgba(11,16,32,0.88);
  border: 1px solid var(--line);
  box-shadow: 0 0 30px rgba(0,234,255,0.08);
  position: relative;
}

.arena-panel {
  padding: 14px;
  min-width: 0;
}

.side-col {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

.score-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.score-side {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 54px;
  padding: 9px 12px;
  border: 1px solid rgba(228,242,255,0.14);
  background: rgba(255,255,255,0.03);
}

.score-side.a { border-color: rgba(0,234,255,0.32); }
.score-side.b { border-color: rgba(255,45,154,0.32); }

.score-side.turn-active {
  border-color: rgba(0,255,136,0.5);
  animation: turnPulse 1.6s ease-in-out infinite;
}

@keyframes turnPulse {
  0%, 100% { box-shadow: 0 0 10px rgba(0,255,136,0.22); }
  50%      { box-shadow: 0 0 24px rgba(0,255,136,0.55); }
}

.tiny-label,
.panel-label {
  font-family: "Share Tech Mono", monospace;
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--muted);
}

.score-side strong {
  font-family: "Orbitron", monospace;
  font-size: 30px;
  line-height: 1;
  color: var(--text);
}

.match-state {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 9px 14px;
  border: 1px solid rgba(255,230,0,0.35);
  color: var(--yellow);
  font-family: "Share Tech Mono", monospace;
  font-size: 12px;
  letter-spacing: 2px;
}

.board-wrap {
  position: relative;
}

.board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(6, 1fr);
  aspect-ratio: 8 / 6;
  max-height: calc(100dvh - 240px);
  max-width: 100%;
  margin: 0 auto;
  gap: 8px;
}

.board-note {
  margin-top: 14px;
  text-align: center;
  color: var(--muted);
  font-family: "Share Tech Mono", monospace;
  font-size: 11px;
  letter-spacing: 1px;
  line-height: 1.5;
}

.board-note[hidden] { display: none; }

.card {
  min-height: 0;
  background: transparent;
  border: 0;
  padding: 0;
  cursor: pointer;
  perspective: 700px;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  opacity: 0;
  transform: translateY(-10px) scale(0.94);
  animation: cardEnter 0.36s ease forwards;
  animation-delay: calc(var(--i, 0) * 14ms);
}

@keyframes cardEnter {
  to { opacity: 1; transform: none; }
}

.card.disabled { pointer-events: none; }

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  display: block;
  transform-style: preserve-3d;
  transition: transform 0.45s cubic-bezier(0.4, 0.2, 0.2, 1);
  border-radius: 8px;
}

.card.is-up .card-inner,
.card.is-matched .card-inner {
  transform: rotateY(180deg);
}

.card-back,
.card-face {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  line-height: 1;
  font-size: clamp(15px, 4.2vw, 40px);
}

.card-back {
  border: 1px solid rgba(0,234,255,0.25);
  background: linear-gradient(135deg, rgba(0,234,255,0.12), rgba(255,45,154,0.08));
  color: rgba(0,234,255,0.55);
  font-family: "Orbitron", monospace;
  font-size: 0.55em;
}

.card-back::after { content: "?"; }

.card-face {
  border: 1px solid rgba(228,242,255,0.3);
  background: rgba(228,242,255,0.92);
  color: var(--text);
  transform: rotateY(180deg);
}

.card.is-matched .card-face {
  background: rgba(0,255,136,0.16);
  border-color: rgba(0,255,136,0.5);
  box-shadow: 0 0 14px rgba(0,255,136,0.25);
}

/* Rebote + glow cuando se forma un par. */
.card.just-matched .card-face {
  animation: matchedBurst 0.65s ease;
}

@keyframes matchedBurst {
  0% { transform: rotateY(180deg) scale(1); box-shadow: 0 0 0 rgba(0,255,136,0); }
  35% { transform: rotateY(180deg) scale(1.12); box-shadow: 0 0 28px rgba(0,255,136,0.7); }
  100% { transform: rotateY(180deg) scale(1); box-shadow: 0 0 14px rgba(0,255,136,0.25); }
}

/* Sacudida cuando el par falla. */
.card.shake .card-inner {
  animation: cardShake 0.42s ease;
}

@keyframes cardShake {
  0%, 100% { transform: rotateY(180deg) translateX(0); }
  20%      { transform: rotateY(180deg) translateX(-6px); }
  40%      { transform: rotateY(180deg) translateX(6px); }
  60%      { transform: rotateY(180deg) translateX(-4px); }
  80%      { transform: rotateY(180deg) translateX(4px); }
}

.actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

.game-btn {
  min-height: 42px;
  padding: 10px 14px;
  font-size: 11px;
  border: 1px solid rgba(228,242,255,0.25);
  background: rgba(228,242,255,0.04);
  color: var(--text);
  font-family: "Share Tech Mono", monospace;
  letter-spacing: 2px;
  cursor: pointer;
}

.game-btn.primary { color: var(--cyan); border-color: rgba(0,234,255,0.45); }
.game-btn.secondary { color: var(--yellow); border-color: rgba(255,230,0,0.35); }
.game-btn.danger { color: var(--pink); border-color: rgba(255,45,154,0.45); }
.game-btn:hover { background: rgba(228,242,255,0.09); }
.game-btn[hidden] { display: none; }

/* Menu de modo sobre el tablero */
.mode-menu {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(5,7,13,0.82);
  backdrop-filter: blur(2px);
}

.mode-menu[hidden] { display: none; }

.menu-card {
  width: min(420px, 100%);
  padding: 22px 20px;
  border: 1px solid rgba(255,45,154,0.32);
  background: rgba(11,16,32,0.96);
  box-shadow: 0 0 30px rgba(255,45,154,0.18);
  text-align: center;
}

.menu-card h2 {
  font-family: "Orbitron", monospace;
  font-size: 24px;
  letter-spacing: 5px;
  color: var(--pink);
  text-shadow: 0 0 16px rgba(255,45,154,0.4);
}

.menu-lead {
  margin: 10px 0 16px;
  font-family: "Share Tech Mono", monospace;
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--muted);
}

.menu-buttons {
  display: grid;
  gap: 10px;
}

.menu-buttons .game-btn {
  min-height: 52px;
  font-size: 13px;
  line-height: 1.3;
}

.menu-buttons .game-btn small {
  display: block;
  margin-top: 3px;
  font-size: 9px;
  letter-spacing: 1px;
  opacity: 0.7;
}

/* Panel online */
.online-panel { padding: 16px; }
.online-panel[hidden] { display: none; }

.online-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 14px;
}

.online-field {
  display: grid;
  gap: 7px;
  margin-top: 12px;
}

.online-field span,
.room-code span {
  font-family: "Share Tech Mono", monospace;
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--muted);
}

.online-field input {
  width: 100%;
  min-height: 38px;
  padding: 8px 10px;
  border: 1px solid rgba(0,234,255,0.3);
  outline: none;
  background: rgba(5,9,18,0.72);
  color: var(--text);
  font-family: "Share Tech Mono", monospace;
  font-size: 14px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.online-field input:focus {
  border-color: rgba(0,234,255,0.7);
  box-shadow: 0 0 12px rgba(0,234,255,0.18);
}

.room-info {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.room-info[hidden] { display: none; }

.room-code {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 42px;
  padding: 8px 10px;
  border: 1px solid rgba(0,255,136,0.32);
  background: rgba(0,255,136,0.06);
}

.room-code strong {
  font-family: "Orbitron", monospace;
  font-size: 18px;
  letter-spacing: 3px;
  color: var(--green);
}

.online-msg {
  min-height: 32px;
  margin-top: 12px;
  color: var(--muted);
  font-family: "Share Tech Mono", monospace;
  font-size: 11px;
  line-height: 1.45;
}

.online-users {
  margin-top: 10px;
  font-family: "Share Tech Mono", monospace;
  font-size: 11px;
}

.online-users ul,
.online-users li { list-style: none; }

.online-users button {
  width: 100%;
  min-height: 36px;
  margin-top: 7px;
  border: 1px solid rgba(0,255,136,0.32);
  background: rgba(0,255,136,0.06);
  color: var(--green);
  font-family: "Share Tech Mono", monospace;
  letter-spacing: 1px;
  cursor: pointer;
}

/* Overlay de fin de partida */
.victory-overlay {
  position: absolute;
  inset: 0;
  z-index: 6;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(5,7,13,0.78);
  backdrop-filter: blur(2px);
  animation: victoryFade 0.35s ease;
}

.victory-overlay[hidden] { display: none; }

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

.menu-card.victory {
  border-color: rgba(0,255,136,0.45);
  box-shadow: 0 0 32px rgba(0,255,136,0.22);
}

.menu-card.victory h2 {
  color: var(--green);
  text-shadow: 0 0 16px rgba(0,255,136,0.45);
}

.victory-scores {
  margin: 4px 0 16px;
  font-family: "Orbitron", monospace;
  font-size: 22px;
  letter-spacing: 4px;
  color: var(--text);
}

/* Aviso de girar el telefono */
.rotate-hint {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 60;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 24px;
  text-align: center;
  background: rgba(5,7,13,0.96);
}

.rotate-hint strong {
  font-family: "Orbitron", monospace;
  font-size: 20px;
  letter-spacing: 3px;
  color: var(--yellow);
}

.rotate-hint span {
  color: var(--muted);
  font-family: "Share Tech Mono", monospace;
  font-size: 12px;
  letter-spacing: 1px;
}

.rotate-hint.hidden { display: none !important; }

@media (max-width: 900px) {
  .game-shell {
    grid-template-columns: 1fr;
  }

  .board {
    grid-template-columns: repeat(6, 1fr);
    grid-template-rows: repeat(8, 1fr);
    aspect-ratio: 6 / 8;
    max-height: calc(100dvh - 210px);
  }

  .online-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .page-header {
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px;
  }

  .status { margin-left: 0; }

  .brand {
    width: 100%;
    margin-left: 0;
    font-size: 26px;
    letter-spacing: 4px;
  }

  .game-shell { padding: 16px 10px 40px; }
  .arena-panel { padding: 10px; }
  .board { gap: 6px; }

  .score-side strong { font-size: 24px; }
  .actions { flex-direction: column; }
}

/* Movil en horizontal: tablero al maximo, panel lateral fuera */
@media (orientation: landscape) and (max-height: 600px) {
  .page-header { padding: 5px 12px; }
  .brand { width: auto; font-size: 16px; letter-spacing: 3px; }

  .game-shell {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 6px 8px;
  }

  .arena-panel { padding: 6px; }
  .score-row { margin-bottom: 6px; }
  .score-side { min-height: 0; padding: 4px 10px; }
  .score-side strong { font-size: 20px; }
  .match-state { min-height: 0; padding: 4px 8px; font-size: 11px; }

  .board {
    grid-template-columns: repeat(12, 1fr);
    grid-template-rows: repeat(4, 1fr);
    aspect-ratio: 12 / 4;
    max-height: calc(100dvh - 100px);
    gap: 5px;
  }

  .card { font-size: clamp(12px, 2.4vh, 26px); }

  .side-col { display: none; }
}