/* ============================================
   WORDQUEST 8-BIT - ESTILOS PRINCIPALES
   ============================================ */

:root {
  --color-bg: #1a1a2e;
  --color-bg-alt: #16213e;
  --color-primary: #e94560;
  --color-secondary: #f9ed69;
  --color-accent: #4ecdc4;
  --color-success: #6bcf5c;
  --color-warning: #ff9f1c;
  --color-danger: #e63946;
  --color-text: #f1faee;
  --color-text-muted: #a8dadc;
  --color-border: #1d3557;

  --font-pixel: 'Press Start 2P', monospace;
  --font-body: 'VT323', monospace;

  --pixel: 4px;
  --border-thick: 4px;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 3rem;
  --space-xl: 4rem;

  --transition: 150ms steps(4, end);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 1.25rem;
  min-height: 100vh;
  overflow-x: hidden;
  image-rendering: pixelated;
  -webkit-font-smoothing: none;
}

.scanlines {
  position: fixed; inset: 0; pointer-events: none; z-index: 9999;
  background: repeating-linear-gradient(0deg, rgba(0,0,0,0.15), rgba(0,0,0,0.15) 1px, transparent 1px, transparent 3px);
  opacity: 0.3;
}

.skip-link {
  position: absolute; top: -40px; left: 0;
  background: var(--color-primary); color: var(--color-text);
  padding: var(--space-xs) var(--space-sm);
  z-index: 10000; font-family: var(--font-pixel); font-size: 0.75rem;
  text-decoration: none;
}
.skip-link:focus { top: 0; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-md); }

/* BOTONES NES */
.nes-btn {
  font-family: var(--font-pixel); font-size: 0.75rem;
  padding: 0.75rem 1.25rem;
  background: var(--color-text); color: var(--color-bg);
  border: none; cursor: pointer;
  position: relative; text-transform: uppercase; letter-spacing: 1px;
  transition: var(--transition);
  box-shadow: inset -4px -4px 0 0 #adafbc, 0 0 0 4px var(--color-bg), 4px 4px 0 0 #adafbc;
  image-rendering: pixelated;
}
.nes-btn::before, .nes-btn::after {
  content: ''; position: absolute; background: var(--color-text);
}
.nes-btn::before { top: -4px; left: -4px; width: calc(100% + 8px); height: 4px; }
.nes-btn::after { top: -4px; left: -4px; width: 4px; height: calc(100% + 8px); }

.nes-btn:hover, .nes-btn:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: inset -4px -4px 0 0 #adafbc, 0 0 0 4px var(--color-bg), 6px 6px 0 0 #adafbc;
}
.nes-btn:focus-visible { outline: 3px solid var(--color-secondary); outline-offset: 4px; }

.nes-btn.primary {
  background: var(--color-primary); color: var(--color-text);
  box-shadow: inset -4px -4px 0 0 #a02040, 0 0 0 4px var(--color-bg), 4px 4px 0 0 #a02040;
}
.nes-btn.primary::before, .nes-btn.primary::after { background: var(--color-primary); }

.nes-btn.secondary {
  background: var(--color-accent); color: var(--color-bg);
  box-shadow: inset -4px -4px 0 0 #2a9d8f, 0 0 0 4px var(--color-bg), 4px 4px 0 0 #2a9d8f;
}
.nes-btn.secondary::before, .nes-btn.secondary::after { background: var(--color-accent); }

.nes-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* HEADER */
.nes-header {
  background: var(--color-bg-alt);
  border-bottom: var(--border-thick) solid var(--color-primary);
  padding: var(--space-sm) 0;
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 4px 0 0 rgba(0,0,0,0.3);
}
.header-content { display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); flex-wrap: wrap; }

.logo { display: flex; align-items: center; gap: var(--space-sm); }
.logo h1 {
  font-family: var(--font-pixel); font-size: 1.25rem;
  color: var(--color-secondary); text-shadow: 2px 2px 0 var(--color-primary); letter-spacing: 2px;
}
.pixel-icon { font-size: 2rem; animation: bounce 1s steps(4) infinite; }
@keyframes bounce { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }

.nav-list { display: flex; gap: var(--space-sm); list-style: none; }
.nav-list a {
  font-family: var(--font-pixel); font-size: 0.75rem;
  color: var(--color-text); text-decoration: none;
  padding: 0.5rem 0.75rem; border: 2px solid transparent; transition: var(--transition);
}
.nav-list a:hover, .nav-list a:focus-visible {
  color: var(--color-secondary); border-color: var(--color-secondary);
  background: rgba(249,237,105,0.1);
}
.header-controls { display: flex; gap: var(--space-xs); }

/* HERO */
.hero {
  padding: var(--space-xl) 0;
  background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(233,69,96,0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(78,205,196,0.1) 0%, transparent 50%);
  pointer-events: none;
}

.pixel-frame {
  background: var(--color-bg-alt);
  border: var(--border-thick) solid var(--color-secondary);
  padding: var(--space-lg); text-align: center;
  position: relative; max-width: 700px; margin: 0 auto var(--space-lg);
  box-shadow: 8px 8px 0 0 rgba(0,0,0,0.3), inset 0 0 0 4px var(--color-bg);
}
.pixel-mascot { font-size: 4rem; margin-bottom: var(--space-sm); animation: bounce 1.5s steps(4) infinite; }
.pixel-frame h2 {
  font-family: var(--font-pixel);
  font-size: clamp(1.25rem, 4vw, 2rem);
  color: var(--color-secondary); margin-bottom: var(--space-sm);
  text-shadow: 3px 3px 0 var(--color-primary); line-height: 1.5;
}
.subtitle { font-size: 1.5rem; color: var(--color-text-muted); margin-bottom: var(--space-md); }
.hero-actions { display: flex; gap: var(--space-sm); justify-content: center; flex-wrap: wrap; }

.stats-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-md); max-width: 800px; margin: 0 auto;
}
.stat-card {
  background: var(--color-bg-alt); border: 3px solid var(--color-accent);
  padding: var(--space-md) var(--space-sm); text-align: center; transition: var(--transition);
}
.stat-card:hover { transform: translateY(-4px); border-color: var(--color-secondary); }
.stat-icon { font-size: 2.5rem; margin-bottom: var(--space-xs); }
.stat-value { font-family: var(--font-pixel); font-size: 2rem; color: var(--color-secondary); margin-bottom: var(--space-xs); }
.stat-label { font-family: var(--font-pixel); font-size: 0.625rem; color: var(--color-text-muted); letter-spacing: 1px; }

/* SECCIONES */
section { padding: var(--space-xl) 0; }
section h2 {
  font-family: var(--font-pixel);
  font-size: clamp(1rem, 3vw, 1.5rem);
  color: var(--color-secondary); text-align: center;
  margin-bottom: var(--space-sm); text-shadow: 2px 2px 0 var(--color-primary); letter-spacing: 2px;
}
.section-desc { text-align: center; color: var(--color-text-muted); margin-bottom: var(--space-lg); font-size: 1.25rem; }

/* VERSIONES */
.versions-section {
  background: var(--color-bg-alt);
  border-top: var(--border-thick) solid var(--color-accent);
  border-bottom: var(--border-thick) solid var(--color-accent);
}
.versions-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: var(--space-sm);
}
.version-card {
  background: var(--color-bg); border: 3px solid var(--color-border);
  padding: var(--space-md) var(--space-sm); text-align: center; cursor: pointer;
  transition: var(--transition); font-family: var(--font-body); color: var(--color-text);
}
.version-card:hover, .version-card:focus-visible {
  border-color: var(--color-secondary); transform: translateY(-4px);
  box-shadow: 4px 4px 0 0 var(--color-secondary);
}
.version-card[aria-checked="true"] {
  border-color: var(--color-primary); background: rgba(233,69,96,0.1);
  box-shadow: 4px 4px 0 0 var(--color-primary);
}
.version-icon { font-size: 2.5rem; margin-bottom: var(--space-xs); }
.version-name { font-family: var(--font-pixel); font-size: 0.75rem; color: var(--color-secondary); margin-bottom: 0.25rem; }
.version-era { font-size: 0.875rem; color: var(--color-text-muted); }

/* JUEGOS */
.games-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--space-md);
}
.game-card {
  background: var(--color-bg-alt); border: 3px solid var(--color-border);
  overflow: hidden; transition: var(--transition); display: flex; flex-direction: column;
}
.game-card:hover { border-color: var(--color-primary); transform: translateY(-6px); box-shadow: 6px 6px 0 0 var(--color-primary); }
.game-preview {
  height: 140px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.pixel-art { font-size: 4rem; filter: drop-shadow(4px 4px 0 rgba(0,0,0,0.3)); animation: float 3s ease-in-out infinite; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

.game-info { padding: var(--space-md); flex: 1; display: flex; flex-direction: column; }
.game-info h3 { font-family: var(--font-pixel); font-size: 0.875rem; color: var(--color-secondary); margin-bottom: var(--space-xs); letter-spacing: 1px; }
.game-desc { color: var(--color-text-muted); margin-bottom: var(--space-sm); flex: 1; }
.game-meta {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: var(--space-sm); font-family: var(--font-pixel); font-size: 0.625rem;
}
.difficulty { padding: 0.25rem 0.5rem; border: 2px solid; }
.difficulty.easy { color: var(--color-success); border-color: var(--color-success); }
.difficulty.medium { color: var(--color-warning); border-color: var(--color-warning); }
.difficulty.hard { color: var(--color-danger); border-color: var(--color-danger); }
.duration { color: var(--color-text-muted); }
.play-btn { width: 100%; margin-top: auto; }

/* PROGRESO */
.progress-section { background: var(--color-bg-alt); }
.progress-bar-container { max-width: 600px; margin: 0 auto var(--space-lg); }
.progress-bar {
  height: 32px; background: var(--color-bg); border: 3px solid var(--color-secondary);
  position: relative; overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: repeating-linear-gradient(90deg, var(--color-primary) 0, var(--color-primary) 16px, var(--color-secondary) 16px, var(--color-secondary) 32px);
  transition: width 0.5s steps(10);
}
.progress-label {
  display: flex; justify-content: space-between; margin-top: var(--space-xs);
  font-family: var(--font-pixel); font-size: 0.75rem; color: var(--color-text-muted);
}

.achievements-title {
  font-family: var(--font-pixel); font-size: 1rem;
  color: var(--color-secondary); text-align: center;
  margin: var(--space-lg) 0 var(--space-md); letter-spacing: 2px;
}
.achievements-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-sm); max-width: 800px; margin: 0 auto;
}
.achievement {
  background: var(--color-bg); border: 3px solid var(--color-border);
  padding: var(--space-sm); text-align: center; transition: var(--transition);
}
.achievement.locked { opacity: 0.4; filter: grayscale(1); }
.achievement:not(.locked) {
  border-color: var(--color-secondary);
  box-shadow: 0 0 20px rgba(249,237,105,0.3);
  animation: glow 2s ease-in-out infinite;
}
@keyframes glow {
  0%,100% { box-shadow: 0 0 20px rgba(249,237,105,0.3); }
  50% { box-shadow: 0 0 30px rgba(249,237,105,0.6); }
}
.achievement-icon { font-size: 2rem; margin-bottom: var(--space-xs); }
.achievement-name { font-family: var(--font-pixel); font-size: 0.625rem; color: var(--color-text); margin-bottom: 0.25rem; }
.achievement-desc { font-size: 0.875rem; color: var(--color-text-muted); }

.reset-container { text-align: center; margin-top: var(--space-lg); }

/* MODAL - CORREGIDO */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--space-md);
  backdrop-filter: blur(4px);
}

.modal[hidden] { display: none; }

.modal-content {
  background: var(--color-bg-alt);
  border: 4px solid var(--color-secondary);
  padding: var(--space-lg);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 8px 8px 0 0 var(--color-primary);
  margin: var(--space-md);
}

/* Header del modal con HUD */
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border);
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.modal-header h3 {
  font-family: var(--font-pixel);
  font-size: 1rem;
  color: var(--color-secondary);
  letter-spacing: 1px;
  flex: 1;
  min-width: 200px;
  margin: 0;
}

.modal-hud {
  display: flex;
  gap: var(--space-md);
  font-family: var(--font-pixel);
  font-size: 0.875rem;
  color: var(--color-text);
  white-space: nowrap;
  align-items: center;
}

.hud-lives, .hud-score {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Botón cerrar - CORREGIDO */
.modal-close {
  position: absolute;
  top: -12px;
  right: -12px;
  background: var(--color-danger);
  color: var(--color-text);
  border: 3px solid var(--color-text);
  width: 36px;
  height: 36px;
  font-family: var(--font-pixel);
  font-size: 1rem;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  line-height: 1;
  box-shadow: 2px 2px 0 0 rgba(0, 0, 0, 0.5);
  transition: var(--transition);
}

.modal-close:hover {
  background: var(--color-primary);
  transform: scale(1.1);
}

.modal-close:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 2px;
}

/* TUTORIAL - CORREGIDO */
.tutorial-content {
  max-width: 700px;
}

.tutorial-step {
  text-align: center;
  padding: var(--space-md) 0;
}

.tutorial-step h3 {
  font-family: var(--font-pixel);
  font-size: 1.25rem;
  color: var(--color-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.5;
}

.tutorial-step p {
  font-size: 1.25rem;
  margin-bottom: var(--space-md);
  line-height: 1.8;
  padding: 0 var(--space-sm);
}

.tutorial-image {
  font-size: 5rem;
  margin: var(--space-md) 0;
  animation: bounce 1.5s steps(4) infinite;
}

.tutorial-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-md);
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.tutorial-dots {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin: var(--space-sm) 0;
  width: 100%;
  order: -1;
}

.tutorial-dot {
  width: 12px;
  height: 12px;
  background: var(--color-border);
  border: 2px solid var(--color-text);
  cursor: pointer;
  transition: var(--transition);
}

.tutorial-dot.active {
  background: var(--color-secondary);
}

.tutorial-dot:hover {
  background: var(--color-accent);
}

/* FOOTER */
.nes-footer {
  background: var(--color-bg-alt);
  border-top: var(--border-thick) solid var(--color-primary);
  padding: var(--space-md) 0; text-align: center;
  font-family: var(--font-pixel); font-size: 0.625rem; color: var(--color-text-muted);
}

/* RESPONSIVE PRINCIPAL */
@media (max-width: 768px) {
  .header-content { flex-direction: column; gap: var(--space-sm); }
  .nav-list { flex-wrap: wrap; justify-content: center; }
  .nav-list a { font-size: 0.625rem; padding: 0.4rem 0.6rem; }
  .logo h1 { font-size: 1rem; }
  .pixel-frame { padding: var(--space-md); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-sm); }
  .stat-value { font-size: 1.5rem; }
  .stat-icon { font-size: 2rem; }
  .games-grid { grid-template-columns: 1fr; }
  .versions-grid { grid-template-columns: repeat(2, 1fr); }

  .modal {
    padding: var(--space-sm);
    align-items: flex-start;
    padding-top: var(--space-md);
  }

  .modal-content {
    padding: var(--space-md);
    margin: 0;
    max-height: 95vh;
    border-width: 3px;
  }

  .modal-close {
    top: -10px;
    right: -10px;
    width: 32px;
    height: 32px;
    font-size: 0.875rem;
  }

  .modal-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .modal-header h3 {
    font-size: 0.875rem;
    min-width: auto;
  }

  .modal-hud {
    font-size: 0.75rem;
    gap: var(--space-sm);
  }

  .tutorial-step h3 {
    font-size: 1rem;
  }

  .tutorial-step p {
    font-size: 1.125rem;
  }

  .tutorial-image {
    font-size: 4rem;
  }

  .tutorial-nav {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .tutorial-nav .nes-btn {
    width: 100%;
  }

  .tutorial-nav > div:first-child {
    width: 100%;
  }

  .tutorial-nav > div:first-child .nes-btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  :root { font-size: 14px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .versions-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .nes-btn { width: 100%; }
  .achievements-grid { grid-template-columns: 1fr 1fr; }

  .modal-content {
    padding: var(--space-sm);
  }

  .modal-close {
    top: -8px;
    right: -8px;
    width: 28px;
    height: 28px;
    font-size: 0.75rem;
  }

  .modal-header h3 {
    font-size: 0.75rem;
  }

  .modal-hud {
    font-size: 0.625rem;
  }

  .tutorial-step h3 {
    font-size: 0.875rem;
  }

  .tutorial-step p {
    font-size: 1rem;
  }

  .tutorial-image {
    font-size: 3rem;
  }
}

@media (prefers-contrast: high) {
  :root { --color-bg: #000; --color-text: #fff; --color-border: #fff; }
  .nes-btn, .game-card, .version-card { border-width: 4px; }
}

:focus-visible { outline: 3px solid var(--color-secondary); outline-offset: 3px; }

@keyframes blink { 0%,50% { opacity: 1; } 51%,100% { opacity: 0.6; } }
.blink { animation: blink 1s steps(2) infinite; }