/* public/css/design-system.css */
/* ==========================================================================
   DEVPORTFOLIO — SISTEMA DE DISEÑO BASE (2026 VANGUARD & CYBER-OBSIDIAN)
   Paleta oscura premium, tipografía Syne & Plus Jakarta Sans, tokens y utilidades
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Syne:wght@600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* --- PALETA DE COLORES: CYBER-OBSIDIAN & ELECTRIC IRIS --- */
  --bg-main:          #030712; /* Obsidiana galáctico profundo */
  --bg-surface:       rgba(15, 23, 42, 0.7); /* Panel Glass esmerilado */
  --bg-surface-elev:  rgba(30, 41, 59, 0.75); /* Cards y elementos elevados */
  --bg-surface-hover: rgba(51, 65, 85, 0.85); /* Hover en superficies */

  --border-subtle:    rgba(255, 255, 255, 0.08); /* Borde sutil de cristal */
  --border-focus:     #8b5cf6; /* Anillo de foco violeta eléctrico */

  --primary:          #8b5cf6; /* Violeta eléctrico moderno */
  --primary-hover:    #7c3aed;
  --primary-light:    rgba(139, 92, 246, 0.15);

  --secondary:        #06b6d4; /* Cian luminoso */
  --accent:           #38bdf8; /* Azul cielo eléctrico */
  --accent-magenta:   #ec4899; /* Magenta para degradados vanguardistas */
  
  --text-main:        #f8fafc; /* Blanco puro nítido */
  --text-muted:       #94a3b8; /* Gris pizarra suave */
  --text-subtle:      #64748b; /* Gris oscuro secundario */

  /* Gradientes de vanguardia */
  --gradient-brand:   linear-gradient(135deg, #a855f7 0%, #06b6d4 100%);
  --gradient-glow:    linear-gradient(135deg, #ec4899 0%, #8b5cf6 50%, #06b6d4 100%);
  --gradient-text:    linear-gradient(135deg, #ffffff 0%, #cbd5e1 50%, #94a3b8 100%);
  --gradient-surface: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);

  /* Estados */
  --success:          #10b981;
  --success-bg:       rgba(16, 185, 129, 0.15);
  --warning:          #f59e0b;
  --warning-bg:       rgba(245, 158, 11, 0.15);
  --danger:           #f43f5e;
  --danger-bg:        rgba(244, 63, 94, 0.15);
  --info:             #06b6d4;
  --info-bg:          rgba(6, 182, 212, 0.15);

  /* --- TIPOGRAFÍA DE VANGUARDIA --- */
  --font-heading: 'Syne', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body:    'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  /* --- ESPACIADO Y BORDES --- */
  --radius-sm:  8px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 30px rgba(139, 92, 246, 0.35);
  --shadow-glow-cyan: 0 0 30px rgba(6, 182, 212, 0.35);

  --transition-fast: 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* RESET BASE */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* ENCABEZADOS */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-main);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--secondary);
}

/* FOCUS RINGS ACCESIBLES (REGLA MEMORIA.MD) */
:focus-visible {
  outline: 2px solid var(--border-focus) !important;
  outline-offset: 2px !important;
}

/* SCROLLBAR PERSONALIZADO */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-main);
}

::-webkit-scrollbar-thumb {
  background: var(--border-subtle);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* LAYOUT GENERAL */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }

.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
}

/* ANIMACIÓN DE APARICIÓN AL SCROLLEAR (ver /js/reveal.js) */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1s ease, transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* --- CLASES DE ESTILO VANGUARDISTA & GLASS --- */
.text-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.text-gradient-white {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.text-gradient-glow {
  background: var(--gradient-glow);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.glass-panel {
  background: var(--bg-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

.glass-panel-elev {
  background: var(--bg-surface-elev);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
}