/* ----------------------------------------------------------
🎨 PALETA NEON – Azul + Naranja (y soporte Dark Mode)
----------------------------------------------------------- */

/* ☀️ MODO CLARO */
:root {
  --bg-body: #06121a; /* Fondo general claro */
  --bg-container: #0b5560; /* Contenedor principal */
  --text-primary: #0b5560; /* Texto principal (azul oscuro) */
  --text-secondary: #6b7280; /* Texto secundario */
  --color-accent: #f27f3d; /* Naranja (acento) */
  --color-error: #ef4444; /* Rojo brillante / Error */
  --color-dark-blue: #245c69; /* Azul oscuro para elementos */
}

/* MODO OSCURO */
.dark {
  --bg-body: #000812;
  --bg-container: #06121a;
  --text-primary: #0b5560;
  --text-secondary: #9ca3af;
  --color-accent: #00e980;
  --color-error: #ef4444;
  --color-dark-blue: #245c69;
}

/* Animaciones */
@keyframes neon-glow-blue {
  0% {
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.1), 0 0 8px rgba(0, 0, 0, 0.05);
  }
  100% {
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.08), 0 0 16px rgba(0, 0, 0, 0.05);
  }
}

@keyframes neon-glow-orange {
  0% {
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.06);
  }
  100% {
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.06);
  }
}

@keyframes cursor-blink-bg {
  0% {
    background-color: var(--color-dark-blue);
  }
  50% {
    background-color: rgba(0, 0, 0, 0.2);
  }
  100% {
    background-color: var(--color-dark-blue);
  }
}

@keyframes neon-pulse {
  0% {
    text-shadow: 0 0 4px var(--text-primary);
  }
  100% {
    text-shadow: 0 0 8px var(--text-primary);
  }
}

/* BODY y CONTENEDOR */
body {
  font-family: "Open Sans", sans-serif;
  background-color: var(--bg-body);
  color: var(--text-primary);
  transition: background-color 0.3s, color 0.3s;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
  background-color: var(--bg-container);
  border: 2px solid var(--text-secondary);
  border-radius: 12px;
  animation: neon-glow-blue 2s infinite alternate;
}

/* ÁREA DE ESCRITURA */
#typing-area {
  font-family: "Roboto Mono", monospace;
  font-size: 2rem;
  line-height: 1.8;
  padding: 1rem;
  border-radius: 0.75rem;
  min-height: 150px;
  cursor: text;
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-wrap: break-word;
  background-color: rgba(0, 0, 0, 0.04);
  color: var(--text-primary);
  border: 2px solid var(--text-secondary);
  animation: neon-glow-orange 3s infinite alternate;
}

/* Carácter actual (cursor visual) */
.char.current {
  background-color: var(--color-dark-blue);
  color: #ffffff !important;
  border-radius: 3px;
  text-shadow: 0 0 6px #fff, 0 0 10px var(--color-accent);
  animation: cursor-blink-bg 1s infinite;
}

/* Correcto e incorrecto */
.char.correct {
  color: var(--color-accent);
  text-shadow: 0 0 6px var(--color-accent);
}
.char.incorrect {
  color: var(--color-error);
  text-decoration: underline;
  background-color: rgba(255, 80, 80, 0.12);
  border-radius: 2px;
  text-shadow: 0 0 6px var(--color-error);
}

/* Espacio visible */
.char.space-visible {
  background-color: rgba(255, 255, 255, 0.08);
}

/* Ocultar input real */
#text-input {
  position: absolute;
  opacity: 0;
  z-index: -1;
}

/* Botones neon */
.btn-primary {
  background-color: var(--text-secondary);
  color: white;
  font-weight: 700;
  border-radius: 8px;
  padding: 8px 16px;
  transition: 0.2s;
  animation: neon-glow-orange 2s infinite alternate;
}
.btn-primary:hover {
  transform: scale(1.05);
}

.btn-secondary {
  background-color: var(--color-dark-blue);
  color: white;
  border-radius: 8px;
  padding: 8px 16px;
  animation: neon-glow-blue 2s infinite alternate;
}
.btn-secondary:hover {
  transform: scale(1.05);
  background-color: var(--text-primary);
}

/* ----------------------------------------------
🎨 CARDS DE CATEGORÍAS
---------------------------------------------- */

.category-card {
  background-color: var(--bg-container);
  border: 3px solid var(--color-accent);
  padding: 16px;
  border-radius: 16px;
  text-align: center;
  cursor: pointer;
  transition: 0.25s;
  box-shadow: 0 0 10px var(--color-accent);
}

.category-card:hover {
  transform: scale(1.05);
  box-shadow: 0 0 18px var(--color-accent);
}

.category-img {
  width: 100%;
  height: 130px;
  object-fit: contain;
  margin-bottom: 10px;
}

/* ----------------------------------------------
🎨 CARDS DE EJERCICIOS
---------------------------------------------- */

.exercise-card {
  background-color: var(--bg-container);
  border: 2px solid var(--text-secondary);
  padding: 18px;
  border-radius: 14px;
  transition: 0.25s;
  box-shadow: 0 0 6px var(--text-primary);
  cursor: pointer;
}

.exercise-card:hover {
  transform: scale(1.05);
  box-shadow: 0 0 14px var(--color-accent);
}

.exercise-card img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 8px;
}

/* ---------------------------------------
🎮 MENÚ PRINCIPAL ESTILO VIDEOJUEGO
----------------------------------------*/

#game-menu {
  animation: fadeIn 0.8s ease-in-out;
}

.neon-title {
  color: var(--color-accent);
  text-shadow: 0 0 6px var(--color-accent), 0 0 10px var(--color-accent);
  animation: neon-pulse 2s infinite alternate;
}

.menu-btn {
  background-color: var(--color-dark-blue);
  border: 3px solid var(--color-accent);
  color: white;
  border-radius: 14px;
  box-shadow: 0 0 12px var(--color-accent);
  transition: 0.2s ease-in-out;
}

.menu-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 0 20px var(--color-accent);
}

.menu-btn:active {
  transform: scale(0.96);
}

/* Animación de entrada */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: scale(1.05);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ------------------------------
🎉 PANTALLA DE NIVEL COMPLETADO
------------------------------ */

#level-complete-screen {
  animation: fadeIn 0.6s ease-out;
}

.level-card {
  background-color: var(--bg-container);
  border: 3px solid var(--color-accent);
  box-shadow: 0 0 20px var(--color-accent);
  animation: popIn 0.5s ease-out;
}

@keyframes popIn {
  0% {
    transform: scale(0.6);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.shine-animation {
  width: 180px;
  height: 180px;
  margin: 0 auto;
  border-radius: 50%;
  background: radial-gradient(circle, var(--color-accent), transparent);
  animation: shinePulse 2s infinite alternate;
}

@keyframes shinePulse {
  0% {
    transform: scale(0.85);
    opacity: 0.5;
  }
  100% {
    transform: scale(1.15);
    opacity: 1;
  }
}

/* Responsivo */
@media (max-width: 640px) {
  #typing-area {
    font-size: 1.4rem;
  }
  .category-img {
    height: 100px;
  }
  .exercise-card img {
    height: 100px;
  }
}
#back-to-categories {
  border: 2px solid var(--color-accent);
  font-weight: bold;
  transition: 0.2s;
}

#back-to-categories:hover {
  transform: scale(1.05);
  box-shadow: 0 0 12px var(--color-accent);
}