/**
 * Estilos prémium para «Conexiones semánticas»
 * Paleta cromática canónica, animaciones fluidas, grid 4x4 adaptable y soporte tema claro/oscuro.
 */

:root {
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Colores base tema claro */
  --bg-primary: #f8fafc;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --border-subtle: #e2e8f0;
  --border-focus: #0ea5e9;

  /* Fichas de palabras */
  --tile-bg: #f1f5f9;
  --tile-bg-hover: #e2e8f0;
  --tile-text: #1e293b;
  --tile-border: #cbd5e1;
  --tile-selected-bg: #1e293b;
  --tile-selected-text: #ffffff;
  --tile-selected-border: #0f172a;

  /* Niveles cromáticos canónicos (Modo claro) */
  --level-1-bg: #fef08a; /* Amarillo suave */
  --level-1-text: #713f12;
  --level-1-border: #fde047;

  --level-2-bg: #bbf7d0; /* Verde esmeralda */
  --level-2-text: #14532d;
  --level-2-border: #86efac;

  --level-3-bg: #bfdbfe; /* Azul zafiro */
  --level-3-text: #1e3a8a;
  --level-3-border: #93c5fd;

  --level-4-bg: #e9d5ff; /* Púrpura orquídea */
  --level-4-text: #581c87;
  --level-4-border: #d8b4fe;

  /* Controles */
  --btn-primary-bg: #0284c7;
  --btn-primary-hover: #0369a1;
  --btn-primary-text: #ffffff;

  --btn-secondary-bg: #ffffff;
  --btn-secondary-hover: #f1f5f9;
  --btn-secondary-text: #334155;
  --btn-secondary-border: #cbd5e1;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] {
  --bg-primary: #0b0f17;
  --bg-surface: #111827;
  --bg-card: #1f2937;
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --border-subtle: #374151;
  --border-focus: #38bdf8;

  /* Fichas en modo oscuro */
  --tile-bg: #1e293b;
  --tile-bg-hover: #334155;
  --tile-text: #f1f5f9;
  --tile-border: #475569;
  --tile-selected-bg: #f8fafc;
  --tile-selected-text: #0f172a;
  --tile-selected-border: #ffffff;

  /* Niveles cromáticos (Modo oscuro - saturación profunda y texto luminoso) */
  --level-1-bg: #854d0e;
  --level-1-text: #fef08a;
  --level-1-border: #ca8a04;

  --level-2-bg: #166534;
  --level-2-text: #bbf7d0;
  --level-2-border: #22c55e;

  --level-3-bg: #1e40af;
  --level-3-text: #dbeafe;
  --level-3-border: #3b82f6;

  --level-4-bg: #6b21a8;
  --level-4-text: #f3e8ff;
  --level-4-border: #a855f7;

  /* Controles en modo oscuro */
  --btn-primary-bg: #0284c7;
  --btn-primary-hover: #38bdf8;
  --btn-primary-text: #ffffff;

  --btn-secondary-bg: #1e293b;
  --btn-secondary-hover: #334155;
  --btn-secondary-text: #e2e8f0;
  --btn-secondary-border: #475569;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 20px -3px rgba(0, 0, 0, 0.6);
}

/* Reset de contención canónica */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-main);
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Layout canónico */
.tool-layout {
  max-width: 1200px;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
  box-sizing: border-box;
  flex: 1 0 auto;
  width: 100%;
}

.tool-with-sidebar {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  width: 100%;
}

.tool-main-content {
  flex: 1 1 0%;
  min-width: 0;
  width: 100%;
}

/* Barra superior del juego */
.game-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.game-header-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.puzzle-meta-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.65rem;
  font-size: 0.8125rem;
  font-weight: 600;
  background-color: var(--tile-bg);
  color: var(--text-muted);
  border-radius: 9999px;
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
}

.puzzle-main-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
  color: var(--text-main);
}

.game-header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-icon-aux {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-icon-aux:hover {
  background: var(--tile-bg-hover);
  border-color: var(--border-focus);
}

/* Tablero central del juego */
.conexiones-game-wrapper {
  max-width: 680px;
  margin: 0 auto;
}

/* Indicador de instrucción inicial */
.game-instructions-prompt {
  text-align: center;
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* Contenedor de categorías resueltas */
.conexiones-solved-container {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 0.65rem;
}

.conexiones-solved-card {
  padding: 1rem 1.25rem;
  border-radius: 12px;
  border: 1px solid transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  animation: cardResolvePop 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: var(--shadow-sm);
}

@keyframes cardResolvePop {
  0% {
    opacity: 0;
    transform: scale(0.92);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

.solved-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.solved-level-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .solved-level-badge {
  background: rgba(255, 255, 255, 0.15);
}

.solved-category-name {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0;
}

.solved-words-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.solved-word-chip::after {
  content: " • ";
  opacity: 0.6;
}

.solved-word-chip:last-child::after {
  content: "";
}

/* Colores de categorías resueltas */
.solved-level-1 {
  background-color: var(--level-1-bg);
  color: var(--level-1-text);
  border-color: var(--level-1-border);
}

.solved-level-2 {
  background-color: var(--level-2-bg);
  color: var(--level-2-text);
  border-color: var(--level-2-border);
}

.solved-level-3 {
  background-color: var(--level-3-bg);
  color: var(--level-3-text);
  border-color: var(--level-3-border);
}

.solved-level-4 {
  background-color: var(--level-4-bg);
  color: var(--level-4-text);
  border-color: var(--level-4-border);
}

/* Cuadrícula de fichas 4x4 */
.conexiones-tiles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.65rem;
  margin-bottom: 1.5rem;
}

.conexiones-tile {
  background-color: var(--tile-bg);
  color: var(--tile-text);
  border: 1px solid var(--tile-border);
  border-radius: 10px;
  min-height: 72px;
  padding: 0.5rem 0.35rem;
  font-family: var(--font-heading);
  font-size: clamp(0.75rem, 2.5vw, 0.9375rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  touch-action: manipulation;
  transition: transform 0.12s ease, background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  word-break: break-word;
  hyphens: auto;
  box-shadow: var(--shadow-sm);
}

.conexiones-tile:hover {
  background-color: var(--tile-bg-hover);
  transform: translateY(-2px);
}

.conexiones-tile:active {
  transform: scale(0.97);
}

.conexiones-tile.tile-selected {
  background-color: var(--tile-selected-bg);
  color: var(--tile-selected-text);
  border-color: var(--tile-selected-border);
  box-shadow: 0 0 0 2px var(--border-focus), var(--shadow-md);
  transform: translateY(-2px);
}

.conexiones-tile.word-long {
  font-size: clamp(0.6875rem, 2vw, 0.8125rem);
}

.conexiones-tile.word-extra-long {
  font-size: clamp(0.625rem, 1.8vw, 0.75rem);
}

/* Animación de fallo (sacudida) */
.tile-shake {
  animation: shakeKeyframes 0.45s ease-in-out;
}

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

/* Contador de vidas / errores restantes */
.mistakes-tracker {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.mistakes-dots-list {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.mistake-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  transition: all 0.25s ease;
}

.mistake-dot.dot-active {
  background-color: #0284c7;
  box-shadow: 0 0 0 2px rgba(2, 132, 199, 0.2);
}

.mistake-dot.dot-used {
  background-color: var(--border-subtle);
  transform: scale(0.75);
}

/* Barra de botones de acción principal */
.conexiones-action-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.btn-game-action {
  font-family: var(--font-main);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.65rem 1.25rem;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.15s ease;
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  user-select: none;
}

.btn-game-action:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-game-secondary {
  background-color: var(--btn-secondary-bg);
  color: var(--btn-secondary-text);
  border: 1px solid var(--btn-secondary-border);
}

.btn-game-secondary:hover:not(:disabled) {
  background-color: var(--btn-secondary-hover);
  border-color: var(--border-focus);
}

.btn-game-primary {
  background-color: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  border: 1px solid transparent;
  box-shadow: var(--shadow-sm);
}

.btn-game-primary:hover:not(:disabled) {
  background-color: var(--btn-primary-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-game-hint {
  background-color: transparent;
  color: var(--text-muted);
  border: 1px dashed var(--border-subtle);
}

.btn-game-hint:hover:not(:disabled) {
  border-color: var(--border-focus);
  color: var(--text-main);
}

/* Toast flotante accesible */
.conexiones-toast {
  position: fixed;
  top: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background-color: #0f172a;
  color: #ffffff;
  padding: 0.65rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 9999;
  text-align: center;
  max-width: 90vw;
}

[data-theme="dark"] .conexiones-toast {
  background-color: #ffffff;
  color: #0f172a;
}

.conexiones-toast.toast-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Modales accesibles */
.conexiones-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 1rem;
  box-sizing: border-box;
}

.conexiones-modal {
  background-color: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  max-width: 540px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: modalPopAnim 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  padding: 1.5rem;
}

@keyframes modalPopAnim {
  0% {
    opacity: 0;
    transform: scale(0.94);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-heading-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
}

.btn-close-modal {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s ease;
}

.btn-close-modal:hover {
  color: var(--text-main);
}

/* Contenidos didácticos del modal "Cómo jugar" */
.howto-level-explanation {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin: 1rem 0;
}

.howto-level-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.85rem;
  border-radius: 8px;
  font-size: 0.875rem;
}

.howto-color-chip {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  flex-shrink: 0;
}

.chip-yellow { background-color: var(--level-1-border); }
.chip-green { background-color: var(--level-2-border); }
.chip-blue { background-color: var(--level-3-border); }
.chip-purple { background-color: var(--level-4-border); }

/* Matriz de emojis de resumen */
.summary-result-content {
  text-align: center;
}

.summary-badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.summary-badge.badge-win {
  background-color: #dcfce7;
  color: #15803d;
}

[data-theme="dark"] .summary-badge.badge-win {
  background-color: #14532d;
  color: #bbf7d0;
}

.summary-badge.badge-loss {
  background-color: #fee2e2;
  color: #b91c1c;
}

[data-theme="dark"] .summary-badge.badge-loss {
  background-color: #7f1d1d;
  color: #fecaca;
}

.summary-emoji-box {
  background: var(--tile-bg);
  padding: 1rem;
  border-radius: 12px;
  display: inline-flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 1.25rem;
  letter-spacing: 0.15em;
  margin: 1rem 0;
  border: 1px solid var(--border-subtle);
}

.summary-mini-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin: 1rem 0;
  padding: 0.75rem;
  background: var(--tile-bg);
  border-radius: 10px;
}

.mini-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.mini-stat-val {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
}

.mini-stat-lbl {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.countdown-box {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.countdown-digits {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-main);
  font-size: 1.1rem;
}

/* Gráfico de distribución de estadísticas */
.stats-kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
  text-align: center;
  margin-bottom: 1.5rem;
}

.stat-kpi-card {
  background: var(--tile-bg);
  padding: 0.75rem 0.5rem;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
}

.stat-kpi-number {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  display: block;
}

.stat-kpi-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.dist-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
  font-size: 0.8125rem;
}

.dist-label {
  width: 75px;
  text-align: right;
  flex-shrink: 0;
  color: var(--text-muted);
}

.dist-bar-track {
  flex: 1;
  background: var(--tile-bg);
  border-radius: 4px;
  overflow: hidden;
  height: 20px;
}

.dist-bar-fill {
  background: #0284c7;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 0.4rem;
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  min-width: 22px;
}

/* Lista del archivo de retos */
.archive-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 50vh;
  overflow-y: auto;
}

.archive-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--tile-bg);
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
}

.archive-item.archive-item-active {
  border-color: var(--border-focus);
}

.archive-item-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.archive-item-title {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  margin: 0.15rem 0 0 0;
}

.archive-item-action {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.archive-status-won {
  font-size: 0.6875rem;
  font-weight: 700;
  color: #15803d;
  background: #dcfce7;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
}

[data-theme="dark"] .archive-status-won {
  color: #bbf7d0;
  background: #14532d;
}

.archive-status-lost {
  font-size: 0.6875rem;
  font-weight: 700;
  color: #b91c1c;
  background: #fee2e2;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
}

[data-theme="dark"] .archive-status-lost {
  color: #fecaca;
  background: #7f1d1d;
}

.archive-status-pending {
  font-size: 0.6875rem;
  color: var(--text-muted);
}

.btn-play-archive {
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-main);
  cursor: pointer;
}

.btn-play-archive:hover {
  background: var(--btn-primary-bg);
  color: #ffffff;
  border-color: var(--btn-primary-bg);
}

/* Cuadro de pista */
.clue-highlight-box {
  background: var(--tile-bg);
  border-left: 4px solid #0284c7;
  padding: 1rem;
  border-radius: 8px;
  margin: 1rem 0;
}

.clue-hint-text {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 0.5rem 0;
  color: var(--text-main);
}

.clue-sample-text {
  margin: 0;
  font-size: 0.9375rem;
}

.clue-tip {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Formulario de creación de retos */
.create-form-group {
  margin-bottom: 1rem;
}

.create-form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  color: var(--text-main);
}

.create-form-input {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: var(--tile-bg);
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 0.875rem;
}

.create-category-block {
  padding: 0.75rem;
  border-radius: 8px;
  background: var(--tile-bg);
  border: 1px solid var(--border-subtle);
  margin-bottom: 0.75rem;
}

.create-cat-header {
  font-size: 0.8125rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.custom-link-box {
  margin-top: 1rem;
  padding: 1rem;
  background: var(--tile-bg);
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
}

/* Responsive móvil */
@media (max-width: 640px) {
  .conexiones-tiles-grid {
    gap: 0.45rem;
  }

  .conexiones-tile {
    min-height: 58px;
    padding: 0.35rem 0.2rem;
    border-radius: 8px;
  }

  .conexiones-action-buttons {
    gap: 0.45rem;
  }

  .btn-game-action {
    flex: 1 1 calc(50% - 0.45rem);
    font-size: 0.875rem;
    padding: 0.6rem 0.75rem;
  }

  .stats-kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}