/* ==================== Variables CSS Optimizadas Adaptativas ==================== */
:root {
  --bg-dark: #0b0d1b;
  --bg-card: rgba(20, 20, 40, 0.7);
  --text-primary: #ffffff;
  --text-secondary: #72d6ff;
  --accent: #72d6ff;
  --accent-purple: #ff7fff;
  --border-color: rgba(255, 255, 255, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 6px 20px rgba(0, 0, 0, 0.5);
  --radius: 12px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-height: 70px;
  --base-blur: 16px;
}

/* Optimización móvil */
@media (hover: none) and (pointer: coarse) {
  :root {
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --base-blur: 8px;
  }
}

/* Optimización PC */
@media (min-width: 1024px) and (hover: hover) {
  :root {
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --base-blur: 20px;
  }
}

/* ==================== Reset & Base Optimizado ==================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  -webkit-tap-highlight-color: transparent;
}

html {
  height: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background: #000014;
  color: var(--text-primary);
  overflow-x: hidden;
  position: relative;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-y: contain;
  line-height: 1.6;
}

/* ==================== Fondo Base Optimizado ==================== */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(ellipse at top, #1a1f3b 0%, #0b0d1b 50%, #000014 100%),
    radial-gradient(circle at 20% 30%, rgba(114, 214, 255, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(255, 127, 255, 0.08) 0%, transparent 40%);
  pointer-events: none;
  z-index: 0;
}

/* Animación solo en PC */
@media (min-width: 1024px) and (hover: hover) {
  body::before {
    animation: gradientShift 20s ease infinite;
  }

  @keyframes gradientShift {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
  }
}

/* ==================== Starfield Base Optimizado ==================== */
#starfield {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

/* Galaxia espiral - animación solo en PC */
.spiral-galaxy {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(700px, 90vw);
  height: min(700px, 90vw);
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse at center, 
    rgba(114, 214, 255, 0.03) 0%, 
    rgba(255, 127, 255, 0.03) 30%, 
    transparent 70%);
  border-radius: 50%;
}

@media (min-width: 1024px) and (hover: hover) {
  .spiral-galaxy {
    animation: spiralRotate 120s linear infinite;
  }

  @keyframes spiralRotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
  }
}

/* Auroras boreales - solo en PC */
@media (min-width: 1024px) and (hover: hover) {
  .aurora {
    position: absolute;
    width: 100%;
    height: 250px;
    opacity: 0.12;
    animation: auroraWave 25s ease-in-out infinite;
    filter: blur(40px);
  }

  .aurora-1 {
    top: 10%;
    background: linear-gradient(90deg, 
      transparent 0%, 
      rgba(114, 214, 255, 0.3) 25%, 
      rgba(255, 127, 255, 0.3) 50%, 
      rgba(114, 214, 255, 0.3) 75%, 
      transparent 100%);
  }

  .aurora-2 {
    top: 30%;
    background: linear-gradient(90deg, 
      transparent 0%, 
      rgba(255, 127, 255, 0.2) 30%, 
      rgba(114, 214, 255, 0.2) 60%, 
      transparent 100%);
    filter: blur(50px);
    animation-delay: -12s;
  }

  @keyframes auroraWave {
    0%, 100% { 
      transform: translateX(-10%) skewX(-5deg); 
      opacity: 0.08;
    }
    50% { 
      transform: translateX(10%) skewX(5deg); 
      opacity: 0.15;
    }
  }
}

/* Estrellas */
.star {
  position: absolute;
  background: white;
  border-radius: 50%;
  opacity: 0.8;
}

/* Animación solo en PC */
@media (min-width: 1024px) and (hover: hover) {
  .star {
    animation: twinkle 4s ease-in-out infinite;
  }

  @keyframes twinkle {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
  }
}

.star.layer-1 { z-index: 1; }
.star.layer-2 { z-index: 2; }
.star.layer-3 { z-index: 3; }

/* Shooting stars - solo en PC */
@media (min-width: 1024px) and (hover: hover) {
  .shooting-star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: linear-gradient(90deg, #fff, transparent);
    border-radius: 50%;
    animation: shoot 4s ease-out infinite;
    opacity: 0;
  }

  @keyframes shoot {
    0% {
      transform: translateX(0) translateY(0);
      opacity: 1;
    }
    100% {
      transform: translateX(-300px) translateY(300px);
      opacity: 0;
    }
  }
}

/* Cometas - solo en PC */
@media (min-width: 1024px) and (hover: hover) {
  .comet {
    position: absolute;
    width: 4px;
    height: 4px;
    background: radial-gradient(circle, #fff, rgba(114, 214, 255, 0.8));
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(114, 214, 255, 0.8);
    animation: cometFly 10s ease-in infinite;
    opacity: 0;
  }

  .comet::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 150px;
    height: 3px;
    background: linear-gradient(90deg, 
      rgba(114, 214, 255, 0.8), 
      rgba(255, 127, 255, 0.4), 
      transparent);
    transform: translate(-10%, -50%);
    border-radius: 50%;
    filter: blur(2px);
  }

  @keyframes cometFly {
    0% {
      transform: translate(0, 0) rotate(-45deg);
      opacity: 0;
    }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% {
      transform: translate(-700px, 700px) rotate(-45deg);
      opacity: 0;
    }
  }
}

/* Planetas - ocultos en móviles */
@media (min-width: 768px) {
  .planet {
    position: absolute;
    border-radius: 50%;
    opacity: 0.5;
  }

  .planet-1 {
    width: 70px;
    height: 70px;
    top: 15%;
    right: 10%;
    background: radial-gradient(circle at 30% 30%, 
      rgba(255, 127, 255, 0.3), 
      rgba(114, 214, 255, 0.15));
    box-shadow: 
      inset -10px -10px 25px rgba(0, 0, 0, 0.3),
      0 0 35px rgba(255, 127, 255, 0.2);
  }

  .planet-2 {
    width: 100px;
    height: 100px;
    bottom: 20%;
    left: 8%;
    background: radial-gradient(circle at 35% 35%, 
      rgba(114, 214, 255, 0.3), 
      rgba(255, 127, 255, 0.15));
    box-shadow: 
      inset -15px -15px 35px rgba(0, 0, 0, 0.3),
      0 0 45px rgba(114, 214, 255, 0.2);
  }

  .planet-3 {
    width: 60px;
    height: 60px;
    top: 60%;
    right: 15%;
    background: radial-gradient(circle at 40% 40%, 
      rgba(255, 200, 100, 0.3), 
      rgba(255, 127, 255, 0.2));
    box-shadow: 
      inset -8px -8px 20px rgba(0, 0, 0, 0.3),
      0 0 30px rgba(255, 200, 100, 0.2);
  }
}

/* Animación de planetas solo en PC */
@media (min-width: 1024px) and (hover: hover) {
  .planet {
    animation: planetFloat 35s ease-in-out infinite;
  }

  .planet-2 { animation-delay: -17s; }
  .planet-3 { animation-delay: -22s; }

  @keyframes planetFloat {
    0%, 100% { 
      transform: translateY(0) rotate(0deg); 
    }
    50% { 
      transform: translateY(-25px) rotate(180deg); 
    }
  }
}

/* Polvo estelar - solo PC */
@media (min-width: 1024px) and (hover: hover) {
  .stardust {
    position: absolute;
    width: 1px;
    height: 1px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: dustFloat 20s linear infinite;
  }

  @keyframes dustFloat {
    0% {
      transform: translateY(0) translateX(0);
      opacity: 0;
    }
    10% { opacity: 0.5; }
    90% { opacity: 0.5; }
    100% {
      transform: translateY(-100vh) translateX(50px);
      opacity: 0;
    }
  }
}

/* ==================== Header Espacial Optimizado ==================== */
header {
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(114, 214, 255, 0.15), transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(255, 127, 255, 0.15), transparent 50%),
    rgba(10, 10, 30, 0.95);
  backdrop-filter: blur(var(--base-blur));
  -webkit-backdrop-filter: blur(var(--base-blur));
  padding: 12px 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(114, 214, 255, 0.2);
  min-height: var(--header-height);
  position: relative;
  overflow: hidden;
  gap: 1.5rem;
  transform: translateZ(0);
}

/* Sombras adaptativas para header */
@media (hover: none) and (pointer: coarse) {
  header {
    box-shadow: 
      0 0 20px rgba(114, 214, 255, 0.2), 
      0 4px 20px rgba(0, 0, 0, 0.5);
  }
}

@media (min-width: 1024px) and (hover: hover) {
  header {
    box-shadow: 
      0 0 30px rgba(114, 214, 255, 0.3), 
      0 8px 40px rgba(0, 0, 0, 0.6),
      inset 0 1px 0 rgba(255, 255, 255, 0.05);
  }
}

/* Nebulosas en header - solo PC */



  @keyframes nebulaFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(-10px, 10px) rotate(120deg); }
    66% { transform: translate(10px, -10px) rotate(240deg); }
  }
}

/* Línea brillante superior */
header::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, 
    transparent, 
    var(--accent) 20%, 
    var(--accent-purple) 50%,
    var(--accent) 80%, 
    transparent);
  box-shadow: 0 0 20px rgba(114, 214, 255, 0.5);
}

/* Animación solo en PC */
@media (min-width: 1024px) and (hover: hover) {
  header::after {
    animation: headerGlow 6s ease-in-out infinite;
  }

  @keyframes headerGlow {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
  }
}

/* Estrellas en header - solo PC */
@media (min-width: 1024px) and (hover: hover) {
  .header-star {
    position: absolute;
    background: white;
    border-radius: 50%;
    opacity: 0.6;
    animation: headerTwinkle 3s ease-in-out infinite;
    pointer-events: none;
    z-index: 1;
  }

  @keyframes headerTwinkle {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.2); }
  }
}

/* Logo y navegación optimizados */
.logo-container {
  position: relative;
  display: flex;
  align-items: center;
  z-index: 2;
  flex-shrink: 0;
}

.logo {
  height: 50px;
  transition: transform var(--transition);
  cursor: pointer;
  filter: drop-shadow(0 0 12px rgba(114, 214, 255, 0.5));
  touch-action: manipulation;
  position: relative;
  z-index: 2;
  transform: translateZ(0);
}

.logo:active {
  transform: scale(0.98) translateZ(0);
}

@media (hover: hover) and (pointer: fine) {
  .logo:hover {
    transform: scale(1.05) rotate(2deg) translateZ(0);
    filter: drop-shadow(0 0 16px var(--accent));
  }
}

nav {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  align-items: center;
  position: relative;
  z-index: 2;
  flex: 1;
  justify-content: center;
  margin: 0 1rem;
}

nav a {
  padding: 10px 14px;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 8px;
  background: rgba(50, 50, 80, 0.5);
  transition: var(--transition);
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(114, 214, 255, 0.2);
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
  transform: translateZ(0);
}

/* Efecto de brillo solo en PC */
@media (min-width: 1024px) and (hover: hover) {
  nav a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(114, 214, 255, 0.3), transparent);
    transition: left 0.6s ease;
  }

  nav a:hover::before {
    left: 100%;
  }

  nav a:hover,
  nav a:focus {
    background: rgba(114, 214, 255, 0.2);
    color: var(--accent-purple);
    transform: translateY(-2px) translateZ(0);
    box-shadow: 0 4px 12px rgba(114, 214, 255, 0.3);
    border-color: var(--accent);
  }
}

/* Estados móviles simplificados */
@media (hover: none) and (pointer: coarse) {
  nav a:active {
    transform: scale(0.95) translateZ(0);
    background: rgba(114, 214, 255, 0.2);
    color: var(--accent-purple);
  }
}

/* ==================== Footer Optimizado ==================== */
footer.site-footer {
  background: rgba(10, 10, 30, 0.95);
  backdrop-filter: blur(var(--base-blur));
  -webkit-backdrop-filter: blur(var(--base-blur));
  text-align: center;
  border-top: 1px solid rgba(114, 214, 255, 0.2);
  position: relative;
  z-index: 2;
}

footer.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-purple), transparent);
  opacity: 0.5;
}

footer.site-footer .container {
  flex-direction: column;
  align-items: center;
}

footer.site-footer small {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

footer.site-footer a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  touch-action: manipulation;
}

footer.site-footer a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-purple));
  transition: width 0.3s ease;
}

@media (hover: hover) and (pointer: fine) {
  footer.site-footer a:hover::after {
    width: 100%;
  }

  footer.site-footer a:hover {
    color: var(--accent-purple);
    text-shadow: 0 0 8px rgba(114, 214, 255, 0.5);
  }
}

/* ==================== Scrollbar Espacial (Optimizado) ==================== */

/* Scrollbar completa solo en PC */
@media (min-width: 1024px) and (hover: hover) {
  ::-webkit-scrollbar {
    width: 14px;
    height: 14px;
  }

  ::-webkit-scrollbar-track {
    background: 
      linear-gradient(180deg, 
        rgba(10, 15, 30, 0.9) 0%,
        rgba(20, 25, 50, 0.7) 50%,
        rgba(10, 15, 30, 0.9) 100%);
    border-radius: 12px;
    margin: 2px;
    border: 1px solid rgba(114, 214, 255, 0.1);
    box-shadow: 
      inset 0 0 10px rgba(0, 0, 0, 0.5),
      0 0 20px rgba(114, 214, 255, 0.1);
  }

  ::-webkit-scrollbar-thumb {
    background: 
      linear-gradient(135deg, 
        rgba(114, 214, 255, 0.9) 0%,
        rgba(114, 214, 255, 0.7) 30%,
        rgba(255, 127, 255, 0.7) 70%,
        rgba(255, 127, 255, 0.9) 100%);
    border-radius: 12px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    box-shadow: 
      0 0 15px rgba(114, 214, 255, 0.4),
      inset 0 0 10px rgba(255, 255, 255, 0.2);
  }

  ::-webkit-scrollbar-thumb::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
      transparent,
      rgba(255, 255, 255, 0.4),
      transparent);
    animation: scrollbarShine 3s infinite;
  }

  @keyframes scrollbarShine {
    0% { left: -100%; }
    100% { left: 100%; }
  }

  ::-webkit-scrollbar-thumb:hover {
    background: 
      linear-gradient(135deg, 
        rgba(114, 214, 255, 1) 0%,
        rgba(114, 214, 255, 0.8) 30%,
        rgba(255, 127, 255, 0.8) 70%,
        rgba(255, 127, 255, 1) 100%);
    box-shadow: 
      0 0 20px rgba(114, 214, 255, 0.6),
      inset 0 0 15px rgba(255, 255, 255, 0.3);
  }

  ::-webkit-scrollbar-thumb:active {
    background: 
      linear-gradient(135deg, 
        rgba(114, 214, 255, 0.8) 0%,
        rgba(114, 214, 255, 0.6) 30%,
        rgba(255, 127, 255, 0.6) 70%,
        rgba(255, 127, 255, 0.8) 100%);
  }
}

/* Scrollbar simplificada en móviles */
@media (hover: none) and (pointer: coarse) {
  ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
  }

  ::-webkit-scrollbar-track {
    background: rgba(10, 15, 30, 0.8);
    border-radius: 8px;
  }

  ::-webkit-scrollbar-thumb {
    background: rgba(114, 214, 255, 0.6);
    border-radius: 8px;
  }

  ::-webkit-scrollbar-thumb:active {
    background: rgba(114, 214, 255, 0.8);
  }
}

/* Firefox */
html {
  scrollbar-width: thin;
  scrollbar-color: 
    rgba(114, 214, 255, 0.8) 
    rgba(10, 15, 30, 0.9);
}

/* ==================== Responsive Optimizado ==================== */
@media (max-width: 768px) {
  :root {
    --header-height: 120px;
  }
  
  header {
    flex-wrap: wrap;
    gap: 1rem;
    padding: 12px 4%;
  }
  
  nav {
    gap: 8px;
    justify-content: center;
    width: 100%;
    margin: 0.5rem 0 0;
  }
  
  nav a {
    font-size: 0.8rem;
    padding: 8px 10px;
    min-height: 44px;
    flex: 1;
    min-width: calc(50% - 4px);
  }
  
  .logo {
    height: 45px;
  }
  
  .spiral-galaxy {
    width: min(500px, 80vw);
    height: min(500px, 80vw);
  }
}

@media (max-width: 480px) {
  header {
    flex-direction: column;
    gap: 12px;
    padding: 12px 4%;
  }

  nav {
    gap: 6px;
  }

  nav a {
    font-size: 0.75rem;
    padding: 6px 8px;
    min-width: calc(50% - 3px);
  }

  .logo {
    height: 40px;
  }
}



/* ==================== Optimización Android Específica ==================== */
@media (hover: none) and (pointer: coarse) {
  /* Desactivar backdrop-filter si no es soportado */
  @supports not (backdrop-filter: blur(8px)) {
    header,
    footer.site-footer {
      backdrop-filter: none;
      -webkit-backdrop-filter: none;
      background: rgba(10, 10, 30, 0.98);
    }
  }
}

/* ==================== Hardware Acceleration ==================== */
header,
.logo,
nav a,
footer.site-footer {
  transform: translate3d(0, 0, 0);
  -webkit-transform: translate3d(0, 0, 0);
}

/* ==================== Optimización de Performance Final ==================== */
@media (hover: none) and (pointer: coarse) and (max-width: 768px) {
  /* Ocultar elementos decorativos pesados en móviles */
  .spiral-galaxy,
  .aurora,
  .comet,
  .shooting-star,
  .planet,
  .stardust,
  .header-star {
    display: none;
  }
}

/* Optimización para conexiones lentas */
@media (prefers-reduced-data: reduce) {
  /* Deshabilitar animaciones costosas */
  .spiral-galaxy,
  .aurora,
  .comet,
  .shooting-star,
  .stardust,
  header::before,
  header::after,
  body::before {
    animation: none !important;
  }

  /* Simplificar sombras */
  header,
  footer.site-footer {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  }

  /* Simplificar gradientes */
  body::before {
    background: radial-gradient(ellipse at top, #1a1f3b 0%, #000014 100%);
  }
}

/* ==================== Will-Change Inteligente ==================== */
@media (hover: hover) and (pointer: fine) {
  /* Solo activar will-change durante interacción en PC */
  .logo:hover,
  nav a:hover {
    will-change: transform;
  }

  .logo:not(:hover),
  nav a:not(:hover) {
    will-change: auto;
  }
}

/* ==================== Smooth Scrolling Adaptativo ==================== */
html {
  scroll-behavior: smooth;
}

@media (hover: none) and (pointer: coarse) {
  html {
    scroll-behavior: auto;
  }
}

/* ==================== Optimización de Fuentes ==================== */
@media (hover: none) and (pointer: coarse) {
  body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeSpeed;
  }
}

@media (min-width: 1024px) {
  body {
    text-rendering: optimizeLegibility;
  }
}

/* ==================== Fix Safari iOS ==================== */
@supports (-webkit-touch-callout: none) {
  body {
    min-height: -webkit-fill-available;
  }
}

/* ==================== Prevenir Overscroll ==================== */
body {
  overscroll-behavior-y: contain;
  overscroll-behavior-x: none;
}

/* ==================== Fix Notch en Móviles ==================== */
@supports (padding-top: env(safe-area-inset-top)) {
  header {
    padding-top: calc(env(safe-area-inset-top) + 12px);
  }
}

/* ==================== Clases de Utilidad para Personalización ==================== */

/* Alto contraste */
body.high-contrast {
  --text-secondary: #ffffff;
  --accent: #ffffff;
  --accent-purple: #ff00ff;
  --border-color: rgba(255, 255, 255, 0.3);
}

body.high-contrast nav a {
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid var(--accent);
}

/* Modo compacto */
body.compact-mode header {
  min-height: 50px;
  padding: 8px 5%;
}

body.compact-mode .logo {
  height: 35px;
}

body.compact-mode nav a {
  padding: 6px 10px;
  font-size: 0.85rem;
}

/* Header oculto */
body header.hidden {
  transform: translateY(-100%);
  transition: transform 0.3s ease;
}

/* Header minimalista */
body header.minimal {
  background: rgba(10, 10, 30, 0.8);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

body header.minimal::before,
body header.minimal::after {
  display: none;
}

/* Sin efectos hover */
body.hide-hover-effects nav a:hover {
  transform: none !important;
  box-shadow: none !important;
}

body.hide-hover-effects .logo:hover {
  transform: none !important;
  filter: drop-shadow(0 0 12px rgba(114, 214, 255, 0.5)) !important;
}

/* Modo ahorro de energía */
body.power-saving * {
  animation-play-state: paused !important;
  transition: none !important;
}

body.power-saving #starfield {
  display: none;
}

/* Reducir animaciones */
body.reduce-animations * {
  animation-duration: 0.1s !important;
  transition-duration: 0.1s !important;
}

/* Hardware acceleration */
body.hw-accel * {
  transform: translate3d(0, 0, 0);
  -webkit-transform: translate3d(0, 0, 0);
}

/* Modo daltónico */
body.colorblind-mode {
  filter: grayscale(0.3) contrast(1.2);
}

/* Contraste de texto aumentado */
body.text-contrast {
  --text-primary: #ffffff;
  --text-secondary: #ffffff;
  text-shadow: 0 0 2px rgba(0, 0, 0, 0.8);
}

/* Resaltar enlaces */
body.highlight-links a:focus,
body.highlight-links a:hover {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

/* Navegación por teclado mejorada */
body.keyboard-nav *:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Filtro CRT */
body.crt-filter {
  position: relative;
}

body.crt-filter::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), 
    linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
  background-size: 100% 2px, 3px 100%;
  pointer-events: none;
  z-index: 9998;
  animation: flicker 0.15s infinite;
}

@keyframes flicker {
  0% { opacity: 0.97; }
  50% { opacity: 0.99; }
  100% { opacity: 0.98; }
}

/* Parallax habilitado */
body.parallax-enabled .star[data-speed] {
  transition: transform 0.1s ease-out;
}

/* ==================== Optimización Final ==================== */

/* Reducir complejidad visual en móviles de gama baja */
@media (hover: none) and (pointer: coarse) and (max-width: 768px) {
  /* Simplificar header */
  header {
    background: rgba(10, 10, 30, 0.95);
  }

  header::before,
  header::after {
    display: none;
  }

  /* Simplificar footer */
  footer.site-footer {
    background: rgba(10, 10, 30, 0.95);
  }

  footer.site-footer::before {
    display: none;
  }

  /* Simplificar gradientes del body */
  body::before {
    background: radial-gradient(ellipse at top, #1a1f3b 0%, #000014 100%);
    animation: none;
  }
}

/* Optimización para pantallas de alta densidad */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .logo {
    image-rendering: -webkit-optimize-contrast;
  }
}

/* Print styles */
@media print {
  #starfield,
  header::before,
  header::after,
  footer.site-footer::before {
    display: none !important;
  }

  header {
    position: static;
    background: white;
    color: black;
    box-shadow: none;
  }

  nav a {
    background: white;
    color: black;
    border: 1px solid black;
  }
}

/* ==================== Debug Mode (Opcional) ==================== */
body.debug-mode * {
  outline: 1px solid rgba(255, 0, 0, 0.2);
}

body.debug-mode *:hover {
  outline: 2px solid rgba(255, 0, 0, 0.5);
}

/* ==================== Performance Monitoring ==================== */
/* Indicador visual si hay lag (experimental) */
@supports (content-visibility: auto) {
  #starfield {
    content-visibility: auto;
    contain-intrinsic-size: 100vw 100vh;
  }
}

/* ==================== Landscape en Móviles ==================== */
@media (max-width: 768px) and (orientation: landscape) {
  header {
    min-height: 60px;
    padding: 8px 4%;
  }

  .logo {
    height: 40px;
  }

  nav a {
    padding: 6px 10px;
    font-size: 0.75rem;
  }
}

/* ==================== Muy Pantallas Pequeñas ==================== */
@media (max-width: 360px) {
  :root {
    --header-height: 100px;
  }

  header {
    gap: 0.5rem;
  }

  nav {
    gap: 4px;
  }

  nav a {
    font-size: 0.7rem;
    padding: 5px 7px;
    min-height: 40px;
  }

  .logo {
    height: 35px;
  }

  footer.site-footer {
    padding: 1.5rem 0;
  }

  footer.site-footer small {
    font-size: 0.75rem;
  }
}

/* ==================== Pantallas Grandes ==================== */
@media (min-width: 1920px) {
  header {
    padding: 16px 8%;
  }

  .logo {
    height: 60px;
  }

  nav a {
    font-size: 1rem;
    padding: 12px 18px;
  }

  .spiral-galaxy {
    width: min(900px, 90vw);
    height: min(900px, 90vw);
  }
}


/* ==================== Fin de Optimizaciones ==================== */