/* ============================================================
   NTIZAR DESIGN SYSTEM
   Liquid Glass UI — Azul & Naranja
   v2.0.0
   ============================================================

   INDICE:
   1.  Reset & Base
   2.  Paleta de color — variables CSS
   3.  Tipografia
   4.  SVG Filters (liquid glass refraction — Chrome/Chromium)
   5.  Glass Utilities — tres niveles
   6.  Specular highlight (universal)
   7.  Animaciones
   8.  Componentes:
       - Buttons
       - Cards
       - Badges
       - Inputs
       - Navigation / Navbar
       - Modal
       - Progress bar
       - Tooltip
   9.  Componentes v2:
       - Alert / Banner
       - Table
       - Tabs
       - Skeleton loader
       - Select
       - Checkbox / Radio
   10. Layout utilities
   11. Light mode override
   ============================================================ */


/* ============================================================
   1. RESET & BASE
   ============================================================ */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
}


/* ============================================================
   2. PALETA DE COLOR — CSS CUSTOM PROPERTIES
   ============================================================ */

:root {
  /* --- Azul (primario) --- */
  --blue-50:  #eff6ff;
  --blue-100: #dbeafe;
  --blue-200: #bfdbfe;
  --blue-300: #93c5fd;
  --blue-400: #60a5fa;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --blue-800: #1e40af;
  --blue-900: #1e3a8a;
  --blue-950: #0f1f5c;

  /* --- Naranja (acento) --- */
  --orange-50:  #fff7ed;
  --orange-100: #ffedd5;
  --orange-200: #fed7aa;
  --orange-300: #fdba74;
  --orange-400: #fb923c;
  --orange-500: #f97316;
  --orange-600: #ea580c;
  --orange-700: #c2410c;
  --orange-800: #9a3412;
  --orange-900: #7c2d12;
  --orange-950: #431407;

  /* --- Neutros oscuros (dark-first) --- */
  --gray-950: #070b12;
  --gray-900: #0d1117;
  --gray-850: #111827;
  --gray-800: #1f2937;
  --gray-700: #374151;
  --gray-600: #4b5563;
  --gray-500: #6b7280;
  --gray-400: #9ca3af;
  --gray-300: #d1d5db;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --gray-50:  #f9fafb;

  /* --- Status (semánticos) --- */
  --success-50:  #f0fdf4;
  --success-100: #dcfce7;
  --success-400: #4ade80;
  --success-500: #22c55e;
  --success-600: #16a34a;
  --success-700: #15803d;

  --danger-50:  #fef2f2;
  --danger-100: #fee2e2;
  --danger-400: #f87171;
  --danger-500: #ef4444;
  --danger-600: #dc2626;
  --danger-700: #b91c1c;

  --warning-50:  #fefce8;
  --warning-100: #fef9c3;
  --warning-400: #facc15;
  --warning-500: #eab308;
  --warning-600: #ca8a04;
  --warning-700: #a16207;

  --info-50:  #eff6ff;
  --info-100: #dbeafe;
  --info-400: #60a5fa;
  --info-500: #3b82f6;
  --info-600: #2563eb;
  --info-700: #1d4ed8;

  /* --- Semanticos (dark mode por defecto) --- */
  --bg-base:        var(--gray-950);
  --bg-surface:     var(--gray-900);
  --bg-elevated:    var(--gray-850);

  --text-primary:   #f0f4ff;
  --text-secondary: #94a3b8;
  --text-muted:     #64748b;
  --text-inverse:   var(--gray-950);

  --border-subtle:  rgba(255, 255, 255, 0.06);
  --border-default: rgba(255, 255, 255, 0.12);
  --border-strong:  rgba(255, 255, 255, 0.22);

  --brand-primary:  var(--blue-500);
  --brand-accent:   var(--orange-500);
  --brand-glow-blue:   rgba(59, 130, 246, 0.35);
  --brand-glow-orange: rgba(249, 115, 22, 0.35);

  /* --- Glass layers --- */
  --glass-bg-subtle:   rgba(255, 255, 255, 0.04);
  --glass-bg-standard: rgba(255, 255, 255, 0.08);
  --glass-bg-intense:  rgba(255, 255, 255, 0.14);

  --glass-bg-blue-subtle:   rgba(59, 130, 246, 0.06);
  --glass-bg-blue-standard: rgba(59, 130, 246, 0.12);
  --glass-bg-orange-subtle:   rgba(249, 115, 22, 0.06);
  --glass-bg-orange-standard: rgba(249, 115, 22, 0.12);

  --glass-blur-sm: blur(8px);
  --glass-blur-md: blur(16px);
  --glass-blur-lg: blur(28px);

  /* --- Sombras --- */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.5);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.5), 0 2px 6px rgba(0,0,0,0.4);
  --shadow-lg:  0 10px 40px rgba(0,0,0,0.6), 0 4px 12px rgba(0,0,0,0.5);
  --shadow-xl:  0 20px 60px rgba(0,0,0,0.7);

  --shadow-blue:   0 4px 20px rgba(59, 130, 246, 0.25);
  --shadow-orange: 0 4px 20px rgba(249, 115, 22, 0.25);

  /* --- Radios --- */
  --radius-xs:  4px;
  --radius-sm:  8px;
  --radius-md:  12px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* --- Transiciones --- */
  --transition-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base:   250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}


/* ============================================================
   3. TIPOGRAFIA
   ============================================================ */

:root {
  --font-sans:  'Inter', 'SF Pro Display', system-ui, -apple-system, sans-serif;
  --font-mono:  'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  --text-xs:   0.75rem;   /* 12px */
  --text-sm:   0.875rem;  /* 14px */
  --text-base: 1rem;      /* 16px */
  --text-lg:   1.125rem;  /* 18px */
  --text-xl:   1.25rem;   /* 20px */
  --text-2xl:  1.5rem;    /* 24px */
  --text-3xl:  1.875rem;  /* 30px */
  --text-4xl:  2.25rem;   /* 36px */
  --text-5xl:  3rem;      /* 48px */

  --font-light:   300;
  --font-normal:  400;
  --font-medium:  500;
  --font-semi:    600;
  --font-bold:    700;
  --font-black:   900;

  --leading-tight:  1.25;
  --leading-snug:   1.375;
  --leading-normal: 1.6;
  --leading-loose:  1.8;

  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide:  0.05em;
  --tracking-wider: 0.1em;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-semi);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p  { color: var(--text-secondary); }
small { font-size: var(--text-sm); color: var(--text-muted); }

code, pre {
  font-family: var(--font-mono);
  font-size: 0.9em;
}


/* ============================================================
   4. SVG LIQUID GLASS FILTER (Chrome/Chromium)
   Refraccion convex-squircle, IOR 1.5
   Usado via: backdrop-filter: url(#ntizar-glass-filter)
   ============================================================ */

.ntizar-svg-filters {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}


/* ============================================================
   5. GLASS UTILITIES
   ============================================================ */

/* --- Nivel 1: Subtle — textos, dividers, fondos de sección --- */
.glass-subtle {
  background: var(--glass-bg-subtle);
  backdrop-filter: var(--glass-blur-sm) saturate(1.4);
  -webkit-backdrop-filter: var(--glass-blur-sm) saturate(1.4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

/* --- Nivel 2: Standard — cards, panels, drawers --- */
.glass-standard {
  background: var(--glass-bg-standard);
  backdrop-filter: var(--glass-blur-md) saturate(1.6) brightness(1.05);
  -webkit-backdrop-filter: var(--glass-blur-md) saturate(1.6) brightness(1.05);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md), inset 0 1px 0 var(--border-default);
}

/* --- Nivel 3: Intense — modales, hero elements --- */
.glass-intense {
  background: var(--glass-bg-intense);
  backdrop-filter: var(--glass-blur-lg) saturate(1.8) brightness(1.08) contrast(1.02);
  -webkit-backdrop-filter: var(--glass-blur-lg) saturate(1.8) brightness(1.08) contrast(1.02);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg), inset 0 1px 0 var(--border-strong);
}

/* --- Variantes de color --- */
.glass-blue {
  background: var(--glass-bg-blue-standard);
  border-color: rgba(59, 130, 246, 0.2);
  box-shadow: var(--shadow-blue), inset 0 1px 0 rgba(59, 130, 246, 0.15);
}

.glass-orange {
  background: var(--glass-bg-orange-standard);
  border-color: rgba(249, 115, 22, 0.2);
  box-shadow: var(--shadow-orange), inset 0 1px 0 rgba(249, 115, 22, 0.15);
}

/* Chrome: refraccion real via SVG filter */
@supports (backdrop-filter: url(#x)) {
  .glass-standard.glass-refract {
    backdrop-filter: url(#ntizar-glass-filter) var(--glass-blur-md) saturate(1.6);
    -webkit-backdrop-filter: url(#ntizar-glass-filter) var(--glass-blur-md) saturate(1.6);
  }
  .glass-intense.glass-refract {
    backdrop-filter: url(#ntizar-glass-filter) var(--glass-blur-lg) saturate(1.8);
    -webkit-backdrop-filter: url(#ntizar-glass-filter) var(--glass-blur-lg) saturate(1.8);
  }
}


/* ============================================================
   6. SPECULAR HIGHLIGHT (universal, rim-light CSS puro)
   ============================================================ */

/* Añadir a cualquier elemento glass para el borde luminoso */
.glass-specular {
  position: relative;
  overflow: hidden;
}

/* Rim superior */
.glass-specular::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.18) 0%,
    rgba(255, 255, 255, 0.06) 30%,
    transparent 60%
  );
  pointer-events: none;
  z-index: 1;
}

/* Shimmer highlight */
.glass-specular::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.07),
    transparent
  );
  border-radius: inherit;
  pointer-events: none;
  z-index: 2;
  transition: left 0.5s ease;
}

.glass-specular:hover::after {
  left: 140%;
  transition: left 0.6s ease;
}

/* Specular naranja (acento) */
.glass-specular.specular-orange::before {
  background: linear-gradient(
    135deg,
    rgba(251, 146, 60, 0.22) 0%,
    rgba(249, 115, 22, 0.08) 30%,
    transparent 60%
  );
}

/* Specular azul */
.glass-specular.specular-blue::before {
  background: linear-gradient(
    135deg,
    rgba(96, 165, 250, 0.22) 0%,
    rgba(59, 130, 246, 0.08) 30%,
    transparent 60%
  );
}


/* ============================================================
   7. ANIMACIONES
   ============================================================ */

@keyframes ntizar-float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-8px); }
}

@keyframes ntizar-pulse-glow-blue {
  0%, 100% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0); }
  50%       { box-shadow: 0 0 30px 6px rgba(59, 130, 246, 0.35); }
}

@keyframes ntizar-pulse-glow-orange {
  0%, 100% { box-shadow: 0 0 0 0 rgba(249, 115, 22, 0); }
  50%       { box-shadow: 0 0 30px 6px rgba(249, 115, 22, 0.35); }
}

@keyframes ntizar-shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes ntizar-spin-slow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes ntizar-fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes ntizar-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes ntizar-scale-in {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes ntizar-liquid-morph {
  0%   { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
  50%  { border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; }
  100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
}

/* Clases de utilidad de animacion */
.animate-float         { animation: ntizar-float 4s ease-in-out infinite; }
.animate-glow-blue     { animation: ntizar-pulse-glow-blue 3s ease-in-out infinite; }
.animate-glow-orange   { animation: ntizar-pulse-glow-orange 3s ease-in-out infinite; }
.animate-fade-up       { animation: ntizar-fade-up 0.5s ease forwards; }
.animate-fade-in       { animation: ntizar-fade-in 0.4s ease forwards; }
.animate-scale-in      { animation: ntizar-scale-in 0.4s var(--transition-spring) forwards; }
.animate-liquid-morph  { animation: ntizar-liquid-morph 8s ease-in-out infinite; }

/* Stagger delays */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }


/* ============================================================
   8. COMPONENTES
   ============================================================ */

/* ----- BUTTONS ----- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  font-family: var(--font-sans);
  line-height: 1;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast),
    opacity var(--transition-fast);
  position: relative;
  overflow: hidden;
  user-select: none;
}

.btn:active {
  transform: scale(0.97);
}

/* Primario azul */
.btn-primary {
  background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
  color: #fff;
  border-color: var(--blue-600);
  box-shadow: var(--shadow-blue), inset 0 1px 0 rgba(255,255,255,0.12);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--blue-400), var(--blue-500));
  box-shadow: 0 6px 28px rgba(59, 130, 246, 0.4);
}

/* Acento naranja */
.btn-accent {
  background: linear-gradient(135deg, var(--orange-500), var(--orange-600));
  color: #fff;
  border-color: var(--orange-600);
  box-shadow: var(--shadow-orange), inset 0 1px 0 rgba(255,255,255,0.12);
}
.btn-accent:hover {
  background: linear-gradient(135deg, var(--orange-400), var(--orange-500));
  box-shadow: 0 6px 28px rgba(249, 115, 22, 0.45);
}

/* Glass */
.btn-glass {
  background: var(--glass-bg-standard);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
  color: var(--text-primary);
  border-color: var(--border-default);
  box-shadow: var(--shadow-sm), inset 0 1px 0 var(--border-default);
}
.btn-glass:hover {
  background: var(--glass-bg-intense);
  border-color: var(--border-strong);
}

/* Glass azul */
.btn-glass-blue {
  background: var(--glass-bg-blue-standard);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
  color: var(--blue-300);
  border-color: rgba(59, 130, 246, 0.25);
  box-shadow: var(--shadow-blue);
}
.btn-glass-blue:hover {
  background: rgba(59, 130, 246, 0.2);
  color: var(--blue-200);
}

/* Ghost */
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}
.btn-ghost:hover {
  background: var(--glass-bg-subtle);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

/* Tamaños */
.btn-sm {
  padding: 0.4rem 0.875rem;
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}
.btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}
.btn-xl {
  padding: 1.125rem 2.25rem;
  font-size: var(--text-lg);
  border-radius: var(--radius-xl);
}

/* Full width */
.btn-block { width: 100%; }

/* Icono circular */
.btn-icon {
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: var(--radius-full);
}
.btn-icon.btn-sm { width: 2rem; height: 2rem; }
.btn-icon.btn-lg { width: 3rem; height: 3rem; }

/* Specular en botones */
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    rgba(255,255,255,0.15) 0%,
    transparent 50%
  );
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.btn:hover::before { opacity: 1; }

/* Estado desactivado */
.btn:disabled, .btn[aria-disabled="true"] {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}


/* ----- CARDS ----- */

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Card glass */
.card-glass {
  background: var(--glass-bg-standard);
  backdrop-filter: var(--glass-blur-md) saturate(1.6);
  -webkit-backdrop-filter: var(--glass-blur-md) saturate(1.6);
  border-color: var(--border-default);
  box-shadow: var(--shadow-md), inset 0 1px 0 var(--border-default);
}

.card-glass:hover {
  background: var(--glass-bg-intense);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg), inset 0 1px 0 var(--border-strong);
  transform: translateY(-4px);
}

/* Card con borde gradient */
.card-gradient-border {
  background: var(--bg-surface);
  border: none;
  border-radius: var(--radius-xl);
  position: relative;
}

.card-gradient-border::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    135deg,
    rgba(59, 130, 246, 0.5),
    rgba(249, 115, 22, 0.5),
    rgba(59, 130, 246, 0.2)
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* Card acentuada */
.card-accent-blue {
  border-top: 2px solid var(--blue-500);
  box-shadow: 0 -2px 20px rgba(59, 130, 246, 0.15), var(--shadow-md);
}

.card-accent-orange {
  border-top: 2px solid var(--orange-500);
  box-shadow: 0 -2px 20px rgba(249, 115, 22, 0.15), var(--shadow-md);
}

/* Partes de la card */
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.card-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semi);
  color: var(--text-primary);
}

.card-body {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}


/* ----- BADGES ----- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.625rem;
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  line-height: 1;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  white-space: nowrap;
}

.badge-blue {
  background: rgba(59, 130, 246, 0.15);
  color: var(--blue-300);
  border-color: rgba(59, 130, 246, 0.25);
}

.badge-orange {
  background: rgba(249, 115, 22, 0.15);
  color: var(--orange-300);
  border-color: rgba(249, 115, 22, 0.25);
}

.badge-glass {
  background: var(--glass-bg-standard);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
  color: var(--text-primary);
  border-color: var(--border-default);
}

.badge-success {
  background: rgba(34, 197, 94, 0.15);
  color: #86efac;
  border-color: rgba(34, 197, 94, 0.25);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.25);
}

.badge-warning {
  background: rgba(234, 179, 8, 0.15);
  color: #fde047;
  border-color: rgba(234, 179, 8, 0.25);
}

/* Punto de estado (dot) */
.badge::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}
.badge.no-dot::before { display: none; }


/* ----- INPUTS ----- */

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.input-label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  letter-spacing: 0.01em;
}

.input {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-size: var(--text-sm);
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--glass-bg-subtle);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  outline: none;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast),
    box-shadow var(--transition-fast);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
}

.input::placeholder {
  color: var(--text-muted);
}

.input:focus {
  border-color: var(--blue-500);
  background: var(--glass-bg-standard);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.input:focus.input-orange {
  border-color: var(--orange-500);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.2);
}

.input-error {
  border-color: rgba(239, 68, 68, 0.5);
}
.input-error:focus {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.input-hint {
  font-size: var(--text-xs);
  color: var(--text-muted);
}
.input-hint.error { color: #fca5a5; }

/* Search input con icono */
.input-search-wrap {
  position: relative;
}
.input-search-wrap .input {
  padding-left: 2.5rem;
}
.input-search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  width: 1rem;
  height: 1rem;
}

/* Textarea */
.textarea {
  resize: vertical;
  min-height: 100px;
  line-height: var(--leading-normal);
}


/* ----- NAVIGATION / NAVBAR ----- */

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.875rem 1.5rem;
  background: var(--glass-bg-standard);
  backdrop-filter: var(--glass-blur-md) saturate(1.6);
  -webkit-backdrop-filter: var(--glass-blur-md) saturate(1.6);
  border-bottom: 1px solid var(--border-default);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 0 var(--border-subtle), var(--shadow-sm);
}

/* Floating navbar */
.navbar-float {
  margin: 1rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-md), inset 0 1px 0 var(--border-default);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: var(--font-bold);
  font-size: var(--text-lg);
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: var(--tracking-tight);
}

.navbar-brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-400), var(--orange-400));
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.6);
  animation: ntizar-pulse-glow-blue 2s ease-in-out infinite;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 0.875rem;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--glass-bg-subtle);
  border-color: var(--border-subtle);
}

.nav-link.active {
  color: var(--blue-300);
  background: var(--glass-bg-blue-subtle);
  border-color: rgba(59, 130, 246, 0.2);
}

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


/* ----- MODAL ----- */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
  animation: ntizar-fade-in 0.2s ease forwards;
}

.modal {
  background: var(--glass-bg-intense);
  backdrop-filter: var(--glass-blur-lg) saturate(1.8);
  -webkit-backdrop-filter: var(--glass-blur-lg) saturate(1.8);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl), inset 0 1px 0 var(--border-strong);
  padding: 2rem;
  width: 100%;
  max-width: 480px;
  position: relative;
  animation: ntizar-scale-in 0.3s var(--transition-spring) forwards;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  transition: all var(--transition-fast);
}
.modal-close:hover {
  background: var(--glass-bg-standard);
  color: var(--text-primary);
}

.modal-header {
  margin-bottom: 1.25rem;
}

.modal-title {
  font-size: var(--text-xl);
  font-weight: var(--font-semi);
  color: var(--text-primary);
}

.modal-body {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  margin-bottom: 1.5rem;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}


/* ----- PROGRESS BAR ----- */

.progress-wrap {
  width: 100%;
  background: var(--glass-bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  overflow: hidden;
  height: 8px;
}

.progress-bar {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--blue-600), var(--blue-400));
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.5);
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

/* Shimmer en progress */
.progress-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255,255,255,0.25) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: ntizar-shimmer 1.8s ease-in-out infinite;
}

.progress-bar.orange {
  background: linear-gradient(90deg, var(--orange-600), var(--orange-400));
  box-shadow: 0 0 12px rgba(249, 115, 22, 0.5);
}

.progress-bar.gradient {
  background: linear-gradient(90deg, var(--blue-500), var(--orange-500));
  box-shadow: 0 0 16px rgba(59, 130, 246, 0.4);
}

/* Tamaños */
.progress-wrap.sm { height: 4px; }
.progress-wrap.lg { height: 12px; }

/* Etiqueta */
.progress-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.375rem;
  font-size: var(--text-xs);
  color: var(--text-muted);
}


/* ----- TOOLTIP ----- */

[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--gray-800);
  backdrop-filter: var(--glass-blur-sm);
  color: var(--text-primary);
  font-size: var(--text-xs);
  font-family: var(--font-sans);
  white-space: nowrap;
  padding: 0.375rem 0.625rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-md);
  pointer-events: none;
  opacity: 0;
  transition:
    opacity var(--transition-fast),
    transform var(--transition-fast);
  z-index: 9999;
}

[data-tooltip]:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}


/* ----- DIVIDER ----- */

.divider {
  border: none;
  height: 1px;
  background: var(--border-subtle);
  margin: 1.5rem 0;
}

.divider-gradient {
  background: linear-gradient(
    90deg,
    transparent,
    var(--blue-500),
    var(--orange-500),
    transparent
  );
  height: 1px;
  border: none;
  opacity: 0.4;
}


/* ----- AVATAR ----- */

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  overflow: hidden;
  font-weight: var(--font-semi);
  font-size: var(--text-sm);
  color: var(--text-primary);
  flex-shrink: 0;
}

.avatar-sm  { width: 2rem;   height: 2rem;   font-size: var(--text-xs); }
.avatar-md  { width: 2.5rem; height: 2.5rem; }
.avatar-lg  { width: 3rem;   height: 3rem;   font-size: var(--text-base); }
.avatar-xl  { width: 4rem;   height: 4rem;   font-size: var(--text-lg); }

.avatar-blue   { background: linear-gradient(135deg, var(--blue-600), var(--blue-400)); }
.avatar-orange { background: linear-gradient(135deg, var(--orange-600), var(--orange-400)); }
.avatar-gradient { background: linear-gradient(135deg, var(--blue-500), var(--orange-500)); }

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}


/* ============================================================
   9. COMPONENTES v2
   ============================================================ */

/* ----- ALERT / BANNER ----- */

.alert {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  border-left: 3px solid var(--brand-primary);
  background: var(--glass-bg-subtle);
  backdrop-filter: var(--glass-blur-sm) saturate(1.4);
  -webkit-backdrop-filter: var(--glass-blur-sm) saturate(1.4);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-normal);
}

.alert-icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.1rem;
}

.alert-content { flex: 1; }

.alert-title {
  font-weight: var(--font-semi);
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.alert-dismiss {
  flex-shrink: 0;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}
.alert-dismiss:hover {
  color: var(--text-primary);
  background: var(--glass-bg-subtle);
}

.alert-info {
  border-left-color: var(--info-500);
  background: rgba(59, 130, 246, 0.08);
}
.alert-info .alert-icon { color: var(--info-400); }

.alert-success {
  border-left-color: var(--success-500);
  background: rgba(34, 197, 94, 0.08);
}
.alert-success .alert-icon { color: var(--success-400); }

.alert-warning {
  border-left-color: var(--warning-500);
  background: rgba(234, 179, 8, 0.08);
}
.alert-warning .alert-icon { color: var(--warning-400); }

.alert-danger {
  border-left-color: var(--danger-500);
  background: rgba(239, 68, 68, 0.08);
}
.alert-danger .alert-icon { color: var(--danger-400); }


/* ----- TABLE ----- */

.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.table thead {
  position: sticky;
  top: 0;
  z-index: 1;
}

.table th {
  text-align: left;
  padding: 0.75rem 1rem;
  font-weight: var(--font-semi);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--text-muted);
  background: var(--glass-bg-subtle);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
  border-bottom: 1px solid var(--border-default);
}

.table th:first-child { border-radius: var(--radius-md) 0 0 0; }
.table th:last-child  { border-radius: 0 var(--radius-md) 0 0; }

.table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}

.table tbody tr {
  transition: background var(--transition-fast);
}

.table tbody tr:hover {
  background: var(--glass-bg-subtle);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

/* Striped */
.table-striped tbody tr:nth-child(even) {
  background: var(--glass-bg-subtle);
}
.table-striped tbody tr:nth-child(even):hover {
  background: var(--glass-bg-standard);
}

/* Compact */
.table-compact th,
.table-compact td {
  padding: 0.5rem 0.75rem;
}

/* Glass table wrapper */
.table-glass {
  background: var(--glass-bg-subtle);
  backdrop-filter: var(--glass-blur-sm) saturate(1.4);
  -webkit-backdrop-filter: var(--glass-blur-sm) saturate(1.4);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.table-glass .table th {
  background: var(--glass-bg-standard);
}


/* ----- TABS ----- */

.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border-default);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tab {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.75rem 1.25rem;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  font-family: var(--font-sans);
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition:
    color var(--transition-fast),
    border-color var(--transition-fast),
    background var(--transition-fast);
  position: relative;
}

.tab:hover {
  color: var(--text-primary);
  background: var(--glass-bg-subtle);
}

.tab-active,
.tab[aria-selected="true"] {
  color: var(--blue-400);
  border-bottom-color: var(--blue-500);
  font-weight: var(--font-semi);
}

/* Tabs glass — fondo glass en vez de simple */
.tabs-glass {
  background: var(--glass-bg-subtle);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  border-bottom: 1px solid var(--border-default);
}

/* Tabs pills — estilo botón */
.tabs-pills {
  border-bottom: none;
  gap: 0.375rem;
  background: var(--glass-bg-subtle);
  padding: 0.375rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
}

.tabs-pills .tab {
  border-bottom: none;
  border-radius: var(--radius-md);
  padding: 0.5rem 1rem;
}

.tabs-pills .tab-active,
.tabs-pills .tab[aria-selected="true"] {
  background: var(--glass-bg-blue-standard);
  border-color: rgba(59, 130, 246, 0.2);
  border: 1px solid rgba(59, 130, 246, 0.2);
  box-shadow: var(--shadow-sm);
}


/* ----- SKELETON LOADER ----- */

.skeleton {
  background: var(--glass-bg-subtle);
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
}

.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--glass-bg-standard) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: ntizar-shimmer 1.8s ease-in-out infinite;
}

.skeleton-text {
  height: 0.875rem;
  width: 100%;
  margin-bottom: 0.625rem;
}
.skeleton-text:last-child {
  width: 65%;
  margin-bottom: 0;
}

.skeleton-title {
  height: 1.5rem;
  width: 45%;
  margin-bottom: 1rem;
}

.skeleton-circle {
  border-radius: var(--radius-full);
}
.skeleton-circle.avatar-sm  { width: 2rem;   height: 2rem; }
.skeleton-circle.avatar-md  { width: 2.5rem; height: 2.5rem; }
.skeleton-circle.avatar-lg  { width: 3rem;   height: 3rem; }

.skeleton-card {
  height: 180px;
  border-radius: var(--radius-xl);
}

.skeleton-btn {
  height: 2.5rem;
  width: 120px;
  border-radius: var(--radius-md);
}


/* ----- SELECT ----- */

.select {
  width: 100%;
  padding: 0.625rem 2.5rem 0.625rem 0.875rem;
  font-size: var(--text-sm);
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--glass-bg-subtle);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  outline: none;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%236b7280' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  background-size: 12px;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast),
    box-shadow var(--transition-fast);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
}

.select:focus {
  border-color: var(--blue-500);
  background-color: var(--glass-bg-standard);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.select:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}


/* ----- CHECKBOX & RADIO ----- */

.checkbox,
.radio {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  user-select: none;
}

.checkbox input,
.radio input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.checkbox-mark,
.radio-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.125rem;
  height: 1.125rem;
  flex-shrink: 0;
  background: var(--glass-bg-subtle);
  border: 1.5px solid var(--border-strong);
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.checkbox-mark {
  border-radius: var(--radius-xs);
}

.radio-mark {
  border-radius: var(--radius-full);
}

/* Checkmark icon */
.checkbox-mark::after {
  content: '';
  display: none;
  width: 0.375rem;
  height: 0.625rem;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) translate(-1px, -1px);
}

/* Radio dot */
.radio-mark::after {
  content: '';
  display: none;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--radius-full);
  background: #fff;
}

/* Checked state */
.checkbox input:checked + .checkbox-mark {
  background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
  border-color: var(--blue-600);
  box-shadow: var(--shadow-blue);
}
.checkbox input:checked + .checkbox-mark::after { display: block; }

.radio input:checked + .radio-mark {
  background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
  border-color: var(--blue-600);
  box-shadow: var(--shadow-blue);
}
.radio input:checked + .radio-mark::after { display: block; }

/* Focus ring */
.checkbox input:focus-visible + .checkbox-mark,
.radio input:focus-visible + .radio-mark {
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

/* Disabled */
.checkbox input:disabled + .checkbox-mark,
.radio input:disabled + .radio-mark {
  opacity: 0.45;
  cursor: not-allowed;
}
.checkbox:has(input:disabled),
.radio:has(input:disabled) {
  opacity: 0.45;
  cursor: not-allowed;
}


/* ============================================================
   10. LAYOUT UTILITIES
   ============================================================ */

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

.container-sm  { max-width: 768px; }
.container-lg  { max-width: 1400px; }
.container-full { max-width: 100%; }

/* Flex */
.flex        { display: flex; }
.flex-col    { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.items-start  { align-items: flex-start; }
.items-end    { align-items: flex-end; }
.justify-center  { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end     { justify-content: flex-end; }
.flex-wrap   { flex-wrap: wrap; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }

/* Grid */
.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); }

/* Spacing */
.p-0 { padding: 0; }
.p-2 { padding: 0.5rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }

.m-auto { margin: auto; }
.mt-2  { margin-top: 0.5rem; }
.mt-4  { margin-top: 1rem; }
.mt-6  { margin-top: 1.5rem; }
.mt-8  { margin-top: 2rem; }
.mb-2  { margin-bottom: 0.5rem; }
.mb-4  { margin-bottom: 1rem; }
.mb-6  { margin-bottom: 1.5rem; }

/* Text utils */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-primary   { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted     { color: var(--text-muted); }
.text-blue      { color: var(--blue-400); }
.text-orange    { color: var(--orange-400); }

/* Gradient text */
.text-gradient {
  background: linear-gradient(135deg, var(--blue-400), var(--orange-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-blue {
  background: linear-gradient(135deg, var(--blue-300), var(--blue-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Borders */
.rounded-sm  { border-radius: var(--radius-sm); }
.rounded-md  { border-radius: var(--radius-md); }
.rounded-lg  { border-radius: var(--radius-lg); }
.rounded-xl  { border-radius: var(--radius-xl); }
.rounded-2xl { border-radius: var(--radius-2xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto   { overflow: auto; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.sticky   { position: sticky; }
.z-10 { z-index: 10; }
.z-50 { z-index: 50; }
.z-100 { z-index: 100; }

/* Width/Height */
.w-full   { width: 100%; }
.h-full   { height: 100%; }
.min-h-screen { min-height: 100vh; }

/* Interactivity */
.pointer-events-none { pointer-events: none; }
.select-none { user-select: none; }
.cursor-pointer { cursor: pointer; }

/* Glow utilities */
.glow-blue   { box-shadow: var(--shadow-blue); }
.glow-orange { box-shadow: var(--shadow-orange); }

/* Background utilities */
.bg-gradient-radial-blue {
  background:
    radial-gradient(ellipse 80% 50% at 20% 20%, rgba(59, 130, 246, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(249, 115, 22, 0.1) 0%, transparent 50%);
}

.bg-gradient-radial-orange {
  background:
    radial-gradient(ellipse 80% 50% at 80% 20%, rgba(249, 115, 22, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 20% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
}

/* Blur decorativo de fondo (orbs) */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  opacity: 0.6;
  animation: ntizar-float 8s ease-in-out infinite;
}
.orb-blue   { background: var(--blue-500); }
.orb-orange { background: var(--orange-500); }


/* ============================================================
   11. LIGHT MODE OVERRIDE
   ============================================================ */

@media (prefers-color-scheme: light) {
  :root {
    --bg-base:        #f0f4ff;
    --bg-surface:     #ffffff;
    --bg-elevated:    #f8faff;

    --text-primary:   #0f1729;
    --text-secondary: #374151;
    --text-muted:     #6b7280;
    --text-inverse:   #f0f4ff;

    /* Bordes con tinte azul — visibles sobre fondo claro */
    --border-subtle:  rgba(59, 130, 246, 0.10);
    --border-default: rgba(59, 130, 246, 0.18);
    --border-strong:  rgba(59, 130, 246, 0.30);

    /* Glass con tinte frío — ya no es invisible */
    --glass-bg-subtle:   rgba(191, 219, 254, 0.30);
    --glass-bg-standard: rgba(191, 219, 254, 0.45);
    --glass-bg-intense:  rgba(219, 234, 254, 0.70);

    --glass-bg-blue-subtle:   rgba(59, 130, 246, 0.12);
    --glass-bg-blue-standard: rgba(59, 130, 246, 0.20);
    --glass-bg-orange-subtle:   rgba(249, 115, 22, 0.12);
    --glass-bg-orange-standard: rgba(249, 115, 22, 0.20);

    /* Sombras más profundas para dar volumen */
    --shadow-sm: 0 1px 4px rgba(15,23,42,0.10), 0 1px 2px rgba(15,23,42,0.06);
    --shadow-md: 0 4px 20px rgba(15,23,42,0.12), 0 2px 8px rgba(15,23,42,0.07);
    --shadow-lg: 0 12px 48px rgba(15,23,42,0.15), 0 4px 16px rgba(15,23,42,0.09);
    --shadow-xl: 0 24px 64px rgba(15,23,42,0.20);

    --shadow-blue:   0 4px 24px rgba(59, 130, 246, 0.30);
    --shadow-orange: 0 4px 24px rgba(249, 115, 22, 0.30);
  }

  /* Glass backdrop-filter mejorado para light */
  .glass-standard {
    backdrop-filter: var(--glass-blur-md) saturate(1.9) brightness(1.02);
    -webkit-backdrop-filter: var(--glass-blur-md) saturate(1.9) brightness(1.02);
  }
  .glass-intense {
    backdrop-filter: var(--glass-blur-lg) saturate(2.1) brightness(1.04) contrast(1.03);
    -webkit-backdrop-filter: var(--glass-blur-lg) saturate(2.1) brightness(1.04) contrast(1.03);
  }

  /* Badges — colores oscuros legibles en light */
  .badge-blue    { color: var(--blue-700);    border-color: rgba(59, 130, 246, 0.30); }
  .badge-orange  { color: var(--orange-700);  border-color: rgba(249, 115, 22, 0.30); }
  .badge-success { color: var(--success-700); border-color: rgba(34, 197, 94, 0.30); }
  .badge-danger  { color: var(--danger-600);  border-color: rgba(239, 68, 68, 0.30); }
  .badge-warning { color: var(--warning-700); border-color: rgba(234, 179, 8, 0.30); }

  /* Botones glass con texto legible */
  .btn-glass-blue { color: var(--blue-700); }
  .btn-glass-blue:hover { color: var(--blue-800); }

  /* Nav active — contraste en light */
  .nav-link.active {
    color: var(--blue-700);
    background: rgba(59, 130, 246, 0.10);
    border-color: rgba(59, 130, 246, 0.20);
  }

  /* Input hints y errores */
  .input-hint.error { color: var(--danger-600); }
  .input-error { border-color: rgba(239, 68, 68, 0.4); }
  .input-error:focus { border-color: var(--danger-500); }

  /* Specular — tinte azul en vez de blanco invisible */
  .glass-specular::before {
    background: linear-gradient(
      135deg,
      rgba(59, 130, 246, 0.14) 0%,
      rgba(59, 130, 246, 0.05) 30%,
      transparent 60%
    );
  }

  /* Tooltip legible en light */
  [data-tooltip]::after {
    background: var(--gray-800);
    color: #f0f4ff;
  }

  /* Orbs decorativos menos intensos */
  .orb { opacity: 0.35; }

  /* Code tags */
  code { color: var(--blue-700); }
}

/* Clase forzar modo claro — copia completa */
.theme-light {
  --bg-base:        #f0f4ff;
  --bg-surface:     #ffffff;
  --bg-elevated:    #f8faff;

  --text-primary:   #0f1729;
  --text-secondary: #374151;
  --text-muted:     #6b7280;
  --text-inverse:   #f0f4ff;

  --border-subtle:  rgba(59, 130, 246, 0.10);
  --border-default: rgba(59, 130, 246, 0.18);
  --border-strong:  rgba(59, 130, 246, 0.30);

  --glass-bg-subtle:   rgba(191, 219, 254, 0.30);
  --glass-bg-standard: rgba(191, 219, 254, 0.45);
  --glass-bg-intense:  rgba(219, 234, 254, 0.70);

  --glass-bg-blue-subtle:   rgba(59, 130, 246, 0.12);
  --glass-bg-blue-standard: rgba(59, 130, 246, 0.20);
  --glass-bg-orange-subtle:   rgba(249, 115, 22, 0.12);
  --glass-bg-orange-standard: rgba(249, 115, 22, 0.20);

  --shadow-sm: 0 1px 4px rgba(15,23,42,0.10), 0 1px 2px rgba(15,23,42,0.06);
  --shadow-md: 0 4px 20px rgba(15,23,42,0.12), 0 2px 8px rgba(15,23,42,0.07);
  --shadow-lg: 0 12px 48px rgba(15,23,42,0.15), 0 4px 16px rgba(15,23,42,0.09);
  --shadow-xl: 0 24px 64px rgba(15,23,42,0.20);

  --shadow-blue:   0 4px 24px rgba(59, 130, 246, 0.30);
  --shadow-orange: 0 4px 24px rgba(249, 115, 22, 0.30);
}

/* Clase forzar modo oscuro — completa */
.theme-dark {
  --bg-base:        var(--gray-950);
  --bg-surface:     var(--gray-900);
  --bg-elevated:    var(--gray-850);

  --text-primary:   #f0f4ff;
  --text-secondary: #94a3b8;
  --text-muted:     #64748b;
  --text-inverse:   var(--gray-950);

  --border-subtle:  rgba(255, 255, 255, 0.06);
  --border-default: rgba(255, 255, 255, 0.12);
  --border-strong:  rgba(255, 255, 255, 0.22);

  --glass-bg-subtle:   rgba(255, 255, 255, 0.04);
  --glass-bg-standard: rgba(255, 255, 255, 0.08);
  --glass-bg-intense:  rgba(255, 255, 255, 0.14);

  --glass-bg-blue-subtle:   rgba(59, 130, 246, 0.06);
  --glass-bg-blue-standard: rgba(59, 130, 246, 0.12);
  --glass-bg-orange-subtle:   rgba(249, 115, 22, 0.06);
  --glass-bg-orange-standard: rgba(249, 115, 22, 0.12);

  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.5);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.5), 0 2px 6px rgba(0,0,0,0.4);
  --shadow-lg:  0 10px 40px rgba(0,0,0,0.6), 0 4px 12px rgba(0,0,0,0.5);
  --shadow-xl:  0 20px 60px rgba(0,0,0,0.7);

  --shadow-blue:   0 4px 20px rgba(59, 130, 246, 0.25);
  --shadow-orange: 0 4px 20px rgba(249, 115, 22, 0.25);
}


/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .navbar { padding: 0.75rem 1rem; }
  .modal  { padding: 1.5rem; }
  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }
}

@media (max-width: 480px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .container { padding: 0 1rem; }
}

/* Reducir animaciones si el usuario lo prefiere */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}