/**
 * ========================================
 * REVISTA DE ECONOMÍA - DISEÑO MODERNO PROFESIONAL
 * OJS 3.5 + Bootstrap 3
 * ========================================
 * Diseño Minimalista de Clase Mundial
 * Color Principal: #f97316 (Orange Vibrant)
 * Color Secundario: #0F4C81 (Deep Blue)
 * Enfoque: Moderno, Elegante, Académico, Responsive
 * ========================================
 */

/* ========================================
   VARIABLES CSS - SISTEMA DE DISEÑO COMPLETO
   ======================================== */
:root {
  /* Colores Principales - Orange & Blue */
  --primary: #f97316;
  --primary-hover: #ea580c;
  --primary-dark: #c2410c;
  --primary-light: #fb923c;
  --primary-pale: #fed7aa;
  --primary-alpha-10: rgba(249, 115, 22, 0.1);
  --primary-alpha-20: rgba(249, 115, 22, 0.2);
  
  /* Colores Secundarios - Professional Blue */
  --secondary: #0F4C81;
  --secondary-hover: #0A3D6B;
  --secondary-dark: #083057;
  --secondary-light: #1E5A94;
  --secondary-pale: #3B82F6;
  
  /* Escala de Grises Moderna */
  --gray-50: #fafafa;
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-300: #d4d4d4;
  --gray-400: #a3a3a3;
  --gray-500: #737373;
  --gray-600: #525252;
  --gray-700: #404040;
  --gray-800: #262626;
  --gray-900: #171717;
  
  /* Colores Warm (para economía) */
  --warm-50: #FAFAF9;
  --warm-100: #F5F5F4;
  --warm-200: #E7E5E4;
  --warm-300: #D6D3D1;
  --warm-500: #78716C;
  --warm-700: #44403C;
  --warm-800: #292524;
  
  /* Colores Semánticos */
  --success: #059669;
  --warning: #f59e0b;
  --error: #DC2626;
  --info: #0284C7;
  
  /* Tipografía Moderna - Multi-Font System */
  --font-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Helvetica Neue', sans-serif;
  --font-serif: 'Merriweather', 'Georgia', 'Times New Roman', serif;
  --font-display: 'Playfair Display', 'Georgia', serif;
  --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;
  
  /* Escala Tipográfica Modular */
  --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 */
  
  /* Espaciado Base 8px - Sistema Completo */
  --space-0: 0;
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.25rem;  /* 20px */
  --space-6: 1.5rem;   /* 24px */
  --space-8: 2rem;     /* 32px */
  --space-10: 2.5rem;  /* 40px */
  --space-12: 3rem;    /* 48px */
  --space-16: 4rem;    /* 64px */
  --space-20: 5rem;    /* 80px */
  --space-24: 6rem;    /* 96px */
  
  /* Sistema de Sombras Elegante */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
  --shadow-orange: 0 4px 16px rgba(249, 115, 22, 0.15);
  --shadow-blue: 0 4px 16px rgba(15, 76, 129, 0.15);
  
  /* Bordes Modernos */
  --border-width: 1px;
  --border-color: var(--gray-200);
  --border: 1px solid var(--gray-200);
  --border-primary: 1px solid var(--primary);
  --border-secondary: 1px solid var(--secondary);
  
  /* Border Radius - Sistema Completo */
  --radius-none: 0;
  --radius-sm: 0.25rem;   /* 4px */
  --radius-md: 0.375rem;  /* 6px */
  --radius-lg: 0.5rem;    /* 8px */
  --radius-xl: 0.75rem;   /* 12px */
  --radius-2xl: 1rem;     /* 16px */
  --radius-3xl: 1.5rem;   /* 24px */
  --radius-full: 9999px;
  
  /* Transiciones Suaves */
  --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-elegant: 600ms cubic-bezier(0.16, 1, 0.3, 1);
  
  /* Z-Index Scale */
  --z-base: 1;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  
  /* Layout Breakpoints */
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
  --breakpoint-2xl: 1400px;
  
  /* Container Max Widths */
  --container-sm: 540px;
  --container-md: 720px;
  --container-lg: 960px;
  --container-xl: 1140px;
  --container-2xl: 1320px;
}


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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-base);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--gray-800);
  background: #ffffff;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Text Selection - Orange Brand */
::selection {
  background-color: var(--primary);
  color: #ffffff;
  text-shadow: none;
}

::-moz-selection {
  background-color: var(--primary);
  color: #ffffff;
  text-shadow: none;
}

/* Focus Outline - Accesibilidad */
:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ========================================
   TIPOGRAFÍA JERÁRQUICA - SISTEMA COMPLETO
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
  color: var(--secondary);
  margin: 0 0 var(--space-6) 0;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

h1 {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: 800;
  margin-bottom: var(--space-8);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

h2 {
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  font-weight: 700;
  position: relative;
  padding-bottom: var(--space-4);
}

h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-sm);
}

h3 {
  font-size: clamp(var(--text-xl), 3vw, var(--text-3xl));
  font-weight: 600;
  color: var(--gray-900);
}

h4 {
  font-size: clamp(var(--text-lg), 2.5vw, var(--text-2xl));
  font-weight: 600;
}

h5 {
  font-size: var(--text-xl);
  font-weight: 600;
  font-family: var(--font-base);
}

h6 {
  font-size: var(--text-lg);
  font-weight: 600;
  font-family: var(--font-base);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gray-700);
}

p {
  margin: 0 0 var(--space-6) 0;
  line-height: 1.8;
  color: var(--gray-700);
  text-wrap: pretty;
}

.lead {
  font-size: var(--text-xl);
  font-weight: 400;
  line-height: 1.7;
  color: var(--gray-600);
  margin-bottom: var(--space-8);
}

a {
  color: var(--secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-base);
  position: relative;
}

a:hover,
a:focus {
  color: var(--primary);
}

strong, b {
  font-weight: 700;
  color: var(--gray-900);
}

em, i {
  font-style: italic;
}

small {
  font-size: var(--text-sm);
  color: var(--gray-600);
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  padding: 0.125rem 0.375rem;
  background: var(--gray-100);
  border-radius: var(--radius-sm);
  color: var(--error);
}

pre {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  padding: var(--space-6);
  background: var(--gray-900);
  color: var(--gray-100);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  margin-bottom: var(--space-6);
}

pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}

blockquote {
  border-left: 4px solid var(--primary);
  padding-left: var(--space-8);
  margin: var(--space-10) 0;
  font-style: italic;
  color: var(--gray-700);
  font-size: var(--text-lg);
}

blockquote footer {
  margin-top: var(--space-4);
  font-style: normal;
  font-size: var(--text-sm);
  color: var(--gray-600);
}

hr {
  border: 0;
  height: 1px;
  background: var(--gray-200);
  margin: var(--space-10) 0;
}


/* ========================================
   CONTENEDOR RESPONSIVE - SISTEMA COMPLETO
   ======================================== */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

@media (min-width: 576px) {
  .container {
    max-width: var(--container-sm);
  }
}

@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

@media (min-width: 992px) {
  .container {
    max-width: var(--container-lg);
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

@media (min-width: 1200px) {
  .container {
    max-width: var(--container-xl);
    padding-left: var(--space-10);
    padding-right: var(--space-10);
  }
}

@media (min-width: 1400px) {
  .container {
    max-width: var(--container-2xl);
    padding-left: var(--space-12);
    padding-right: var(--space-12);
  }
}

.container-fluid {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

@media (min-width: 768px) {
  .container-fluid {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

@media (min-width: 992px) {
  .container-fluid {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

/* ========================================
   GRID SYSTEM - RESPONSIVE MODERNO
   ======================================== */
.row {
  display: flex;
  flex-wrap: wrap;
  margin-left: calc(var(--space-6) * -1);
  margin-right: calc(var(--space-6) * -1);
}

@media (min-width: 992px) {
  .row {
    margin-left: calc(var(--space-8) * -1);
    margin-right: calc(var(--space-8) * -1);
  }
}

.col,
[class*="col-"] {
  padding-left: var(--space-6);
  padding-right: var(--space-6);
  width: 100%;
}

@media (min-width: 992px) {
  .col,
  [class*="col-"] {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

/* Mobile First - Base (< 576px) */
.col-12 { flex: 0 0 100%; max-width: 100%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }

/* Small devices (≥576px) */
@media (min-width: 576px) {
  .col-sm-12 { flex: 0 0 100%; max-width: 100%; }
  .col-sm-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
  .col-sm-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
  .col-sm-9 { flex: 0 0 75%; max-width: 75%; }
  .col-sm-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
  .col-sm-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
  .col-sm-6 { flex: 0 0 50%; max-width: 50%; }
  .col-sm-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
  .col-sm-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
  .col-sm-3 { flex: 0 0 25%; max-width: 25%; }
  .col-sm-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
  .col-sm-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
}

/* Medium devices (≥768px) */
@media (min-width: 768px) {
  .col-md-12 { flex: 0 0 100%; max-width: 100%; }
  .col-md-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
  .col-md-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
  .col-md-9 { flex: 0 0 75%; max-width: 75%; }
  .col-md-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
  .col-md-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
  .col-md-6 { flex: 0 0 50%; max-width: 50%; }
  .col-md-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
  .col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
  .col-md-3 { flex: 0 0 25%; max-width: 25%; }
  .col-md-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
  .col-md-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
}

/* Large devices (≥992px) */
@media (min-width: 992px) {
  .col-lg-12 { flex: 0 0 100%; max-width: 100%; }
  .col-lg-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
  .col-lg-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
  .col-lg-9 { flex: 0 0 75%; max-width: 75%; }
  .col-lg-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
  .col-lg-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
  .col-lg-6 { flex: 0 0 50%; max-width: 50%; }
  .col-lg-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
  .col-lg-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
  .col-lg-3 { flex: 0 0 25%; max-width: 25%; }
  .col-lg-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
  .col-lg-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
}

/* Extra large devices (≥1200px) */
@media (min-width: 1200px) {
  .col-xl-12 { flex: 0 0 100%; max-width: 100%; }
  .col-xl-9 { flex: 0 0 75%; max-width: 75%; }
  .col-xl-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
  .col-xl-6 { flex: 0 0 50%; max-width: 50%; }
  .col-xl-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
  .col-xl-3 { flex: 0 0 25%; max-width: 25%; }
}


/* ========================================
   HEADER - NAVEGACIÓN STICKY MODERNA Y RESPONSIVE
   ======================================== */
header.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #ffffff;
  border-bottom: 1px solid var(--gray-200);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  margin: 0;
  transition: all var(--transition-base);
}

header.navbar.scrolled {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* User Navigation Bar - Top Row (Registrarse/Entrar) */
header.navbar .container-fluid:first-child {
  background: #ffffff;
  border-bottom: none;
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
}

header.navbar .container-fluid:first-child .row {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin: 0;
  padding: 0;
}

/* User Navigation Menu - Pills al lado derecho */
#navigationUser {
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--space-2);
  list-style: none;
}

#navigationUser li {
  margin: 0;
}

#navigationUser li a {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  color: var(--gray-700);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

#navigationUser li a:hover {
  background: var(--primary-alpha-10);
  color: var(--primary);
}

/* Destacar botones de Register y Login - Solo texto gris */
#navigationUser li a[href*="register"],
#navigationUser li a[href*="login"] {
  background: transparent;
  color: var(--gray-700);
  font-weight: 600;
  padding: var(--space-2) var(--space-5);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
}

#navigationUser li a[href*="register"]:hover,
#navigationUser li a[href*="login"]:hover {
  background: transparent;  /* ← Cambiado: sin fondo */
  color: var(--primary);     /* ← Solo cambia el color de texto a naranja */
  border-color: transparent;
}

/* Main Navbar Container - Second Row */
header.navbar .container-fluid:nth-child(2) {
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* Navbar Base */
.navbar {
  background: transparent;
  border: none;
  margin: 0;
  min-height: auto;
  position: relative;
  width: 100%;
}

.navbar-default {
  background: transparent;
  border: none;
}

/* Logo Section */
.navbar-header {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
  order: 1;
  flex-shrink: 0;
}

.navbar-brand {
  display: flex;
  align-items: center;
  padding: 0;
  margin: 0;
  height: auto;
  font-size: clamp(var(--text-lg), 3vw, var(--text-2xl));
  font-weight: 700;
  color: var(--secondary) !important;
  font-family: var(--font-display);
  transition: all var(--transition-base);
}

.navbar-brand:hover,
.navbar-brand:focus {
  color: var(--primary) !important;
  transform: translateX(2px);
}

.navbar-brand img {
  max-height: 90px;
  width: auto;
  margin-right: var(--space-4);
  transition: transform var(--transition-base);
}

.navbar-brand:hover img {
  transform: scale(1.05);
}

/* Navigation Collapse - Centrado */
.navbar-collapse {
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  box-shadow: none;
  padding: 0;
  overflow: visible;
  order: 2;
  flex: 1;
}

/* Main Navigation */
.navbar-nav {
  display: flex;
  align-items: center;
  margin: 0 auto;
  padding: 0;
  list-style: none;
  gap: var(--space-2);
}

.navbar-nav > li {
  display: inline-block;
  margin: 0;
  position: relative;
}

.navbar-nav > li > a {
  display: block;
  padding: var(--space-3) var(--space-5);
  color: var(--gray-700) !important;
  font-size: var(--text-sm);
  font-weight: 500;
  font-family: var(--font-base);
  transition: all var(--transition-base);
  position: relative;
  white-space: nowrap;
  letter-spacing: 0.01em;
}

/* Elegant Underline Effect */
.navbar-nav > li > a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: var(--space-5);
  right: var(--space-5);
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-elegant);
  border-radius: var(--radius-full);
}

.navbar-nav > li > a:hover,
.navbar-nav > li > a:focus {
  color: var(--primary) !important;
  background: transparent;
}

.navbar-nav > li > a:hover::after,
.navbar-nav > li > a:focus::after {
  transform: scaleX(1);
}

/* Active State */
.navbar-nav > li.active > a,
.navbar-nav > li.current > a {
  color: var(--secondary) !important;
  font-weight: 600;
}

.navbar-nav > li.active > a::after,
.navbar-nav > li.current > a::after {
  transform: scaleX(1);
  background: var(--secondary);
}

/* Right Navigation - User buttons y Search */
.navbar-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin: 0;
  gap: var(--space-3);
  order: 3;
  margin-left: auto;
}

.navbar-right > li {
  display: inline-block;
  margin: 0;
}

.navbar-right > li > a {
  color: var(--gray-700) !important;
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.navbar-right > li > a:hover {
  background: var(--primary-alpha-10);
  color: var(--primary) !important;
}

/* Botones de registro/login destacados */
.navbar-right > li > a[href*="register"],
.navbar-right > li > a[href*="login"] {
  background: var(--warm-50);
  border: 1px solid var(--gray-300);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: var(--text-xs);
}

.navbar-right > li > a[href*="register"]:hover,
.navbar-right > li > a[href*="login"]:hover {
  background: var(--primary);
  color: #ffffff !important;
  border-color: var(--primary);
}

/* Search Form in Navbar */
.navbar-form {
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
}

.navbar-form .form-group {
  margin: 0;
  display: flex;
  align-items: center;
}

.navbar-form input[type="search"],
.navbar-form input[type="text"] {
  padding: var(--space-2) var(--space-4);
  border: var(--border);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  transition: all var(--transition-base);
  width: 200px;
}

.navbar-form input[type="search"]:focus,
.navbar-form input[type="text"]:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-alpha-10);
  outline: none;
  width: 240px;
}

.navbar-form .btn {
  margin-left: var(--space-2);
}

/* Dropdown Menus - Elegant */
.navbar-nav .dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: var(--z-dropdown);
  min-width: 220px;
  padding: var(--space-2);
  margin-top: var(--space-2);
  background: #ffffff;
  border: var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-elegant);
}

.navbar-nav .dropdown:hover .dropdown-menu,
.navbar-nav .open > .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu > li > a {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--gray-700);
  font-size: var(--text-sm);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  position: relative;
}

.dropdown-menu > li > a::before {
  content: '';
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: var(--primary);
  border-radius: var(--radius-full);
  transition: height var(--transition-base);
}

.dropdown-menu > li > a:hover,
.dropdown-menu > li > a:focus {
  background: var(--primary-alpha-10);
  color: var(--primary);
  padding-left: var(--space-6);
}

.dropdown-menu > li > a:hover::before,
.dropdown-menu > li > a:focus::before {
  height: 60%;
}

.dropdown-menu .divider {
  height: 1px;
  background: var(--gray-200);
  margin: var(--space-2) 0;
}

/* Mobile Toggle Button - Hamburger Menu */
.navbar-toggle {
  display: none;
  padding: var(--space-2);
  margin: 0;
  margin-left: var(--space-4);
  background: transparent;
  border: var(--border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  z-index: 3;
  order: 4;
}

.navbar-toggle:hover,
.navbar-toggle:focus {
  background: var(--gray-50);
  border-color: var(--primary);
}

.navbar-toggle .icon-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--gray-700);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.navbar-toggle:hover .icon-bar {
  background: var(--primary);
}

.navbar-toggle .icon-bar + .icon-bar {
  margin-top: 4px;
}

/* Animated Hamburger to X */
.navbar-toggle.active .icon-bar:nth-child(1) {
  transform: rotate(45deg) translateY(7px);
}

.navbar-toggle.active .icon-bar:nth-child(2) {
  opacity: 0;
}

.navbar-toggle.active .icon-bar:nth-child(3) {
  transform: rotate(-45deg) translateY(-7px);
}

/* ========================================
   RESPONSIVE NAVIGATION - MOBILE FIRST
   ======================================== */

/* Tablets y Mobile (< 992px) */
@media (max-width: 991px) {
  /* User nav en mobile */
  header.navbar .container-fluid:first-child {
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
  }
  
  #navigationUser {
    gap: var(--space-1);
    flex-wrap: wrap;
  }
  
  #navigationUser li a {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
  }
  
  #navigationUser li a[href*="register"],
  #navigationUser li a[href*="login"] {
    padding: var(--space-2) var(--space-4);
  }
  
  /* Main navbar - Forzar separación completa */
  header.navbar .container-fluid:nth-child(2) {
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
    display: flex !important;
    flex-wrap: wrap !important;
    justify-content: space-between !important;
    align-items: center !important;
    width: 100% !important;
    gap: 0 !important;
  }
  
  /* Mostrar hamburger a la derecha */
  .navbar-toggle {
    display: block !important;
    order: 3;
    flex: 0 0 auto;
    margin-left: auto;
  }
  
  /* Ajustar navbar para mobile - Logo a la izquierda */
  .navbar-header {
    order: 1;
    flex: 0 0 auto;
    margin-right: 0;
  }
  
  /* Ocultar el menú principal en el medio */
  .navbar-collapse:not(.in):not(.show) {
    display: none !important;
  }
  
  .navbar-collapse {
    order: 4;
    width: 100%;
    flex: none;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-elegant);
    flex-direction: column;
    align-items: stretch;
    margin-top: var(--space-4);
    background: #ffffff;
    border-radius: var(--radius-lg);
  }
  
  .navbar-collapse.in,
  .navbar-collapse.show {
    max-height: 800px;
    border-top: 1px solid var(--gray-200);
    padding-top: var(--space-4);
    box-shadow: var(--shadow-md);
  }
  
  .navbar-nav {
    flex-direction: column;
    width: 100%;
    align-items: stretch;
    gap: 0;
  }
  
  .navbar-nav > li {
    width: 100%;
    border-bottom: 1px solid var(--gray-200);
  }
  
  .navbar-nav > li:last-child {
    border-bottom: none;
  }
  
  .navbar-nav > li > a {
    padding: var(--space-4);
    font-size: var(--text-base);
  }
  
  .navbar-nav > li > a::after {
    display: none;
  }
  
  .navbar-nav > li.active > a::before,
  .navbar-nav > li.current > a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  }
  
  /* Right nav en mobile */
  .navbar-right {
    flex-direction: column;
    width: 100%;
    gap: 0;
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--gray-200);
  }
  
  .navbar-right > li {
    width: 100%;
  }
  
  .navbar-right > li > a {
    width: 100%;
    text-align: left;
    padding: var(--space-3) var(--space-4);
  }
  
  .navbar-form {
    width: 100%;
    padding: var(--space-4);
  }
  
  .navbar-form input[type="search"],
  .navbar-form input[type="text"] {
    width: 100%;
  }
  
  .navbar-form input[type="search"]:focus,
  .navbar-form input[type="text"]:focus {
    width: 100%;
  }
  
  /* Dropdown en mobile */
  .navbar-nav .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    margin: 0;
    padding: 0 0 0 var(--space-6);
    background: var(--gray-50);
    border-radius: 0;
  }
}

/* Desktop (≥ 992px) - Layout Normal */
@media (min-width: 992px) {
  .navbar-collapse.collapse {
    display: flex !important;
    max-height: none !important;
    overflow: visible !important;
  }
  
  .navbar-toggle {
    display: none !important;
  }
}

/* Mobile pequeño (< 576px) */
@media (max-width: 575px) {
  .navbar-brand {
    font-size: var(--text-base);
  }
  
  .navbar-brand img {
    max-height: 36px;
    margin-right: var(--space-3);
  }
  
  .navbar > .container {
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
  }
  
  /* User bar más compacto */
  .pkp_head_wrapper .pkp_navigation_user {
    gap: var(--space-1);
  }
  
  .pkp_head_wrapper .pkp_navigation_user a {
    padding: var(--space-1) var(--space-2);
    font-size: 0.625rem;
  }
}


/* ========================================
   BOTONES - SISTEMA MODERNO Y ELEGANTE
   ======================================== */
.btn {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  font-family: var(--font-base);
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  vertical-align: middle;
  user-select: none;
  line-height: 1.5;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width var(--transition-elegant), height var(--transition-elegant);
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn:active {
  transform: translateY(1px);
}

/* Primary Button - Orange Vibrant */
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  color: #ffffff;
  box-shadow: var(--shadow-orange);
}

.btn-primary:hover,
.btn-primary:focus {
  background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary-dark) 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Secondary Button - Blue Professional */
.btn-secondary {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
  color: #ffffff;
  box-shadow: var(--shadow-blue);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background: linear-gradient(135deg, var(--secondary-hover) 0%, var(--secondary-dark) 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Default/Outline Button */
.btn-default {
  background: #ffffff;
  color: var(--gray-700);
  border: 2px solid var(--gray-300);
  box-shadow: var(--shadow-sm);
}

.btn-default:hover,
.btn-default:focus {
  background: var(--gray-50);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

/* Outline Primary */
.btn-outline-primary {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background: var(--primary);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-orange);
}

/* Success Button */
.btn-success {
  background: var(--success);
  color: #ffffff;
}

.btn-success:hover,
.btn-success:focus {
  background: #047857;
  color: #ffffff;
  transform: translateY(-2px);
}

/* Warning Button */
.btn-warning {
  background: var(--warning);
  color: #ffffff;
}

.btn-warning:hover {
  background: #d97706;
  color: #ffffff;
  transform: translateY(-2px);
}

/* Danger Button */
.btn-danger {
  background: var(--error);
  color: #ffffff;
}

.btn-danger:hover {
  background: #b91c1c;
  color: #ffffff;
  transform: translateY(-2px);
}

/* Info Button */
.btn-info {
  background: var(--info);
  color: #ffffff;
}

.btn-info:hover {
  background: #0369a1;
  color: #ffffff;
  transform: translateY(-2px);
}

/* Button Sizes */
.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  border-radius: var(--radius-xl);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  border-radius: var(--radius-md);
}

.btn-xs {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}

/* Button with Icon */
.btn .glyphicon,
.btn .fa,
.btn .icon {
  margin-right: var(--space-2);
  transition: transform var(--transition-base);
}

.btn:hover .glyphicon-chevron-right,
.btn:hover .fa-chevron-right {
  transform: translateX(3px);
}

.btn:hover .glyphicon-chevron-left,
.btn:hover .fa-chevron-left {
  transform: translateX(-3px);
}

/* Button Group */
.btn-group {
  display: inline-flex;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.btn-group .btn {
  border-radius: 0;
  border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-group .btn:first-child {
  border-top-left-radius: var(--radius-lg);
  border-bottom-left-radius: var(--radius-lg);
}

.btn-group .btn:last-child {
  border-top-right-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
  border-right: none;
}

/* Disabled State */
.btn:disabled,
.btn.disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
  transform: none;
}

.btn-block {
  display: block;
  width: 100%;
}

/* Responsive Buttons */
@media (max-width: 767px) {
  .btn {
    padding: var(--space-3) var(--space-5);
  }
  
  .btn-lg {
    padding: var(--space-4) var(--space-6);
  }
}


/* ========================================
   PANELS Y CARDS - COMPONENTES MODERNOS
   ======================================== */
.panel {
  background: #ffffff;
  border: var(--border);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-8);
  overflow: hidden;
  transition: all var(--transition-base);
  position: relative;
}

.panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-elegant);
}

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

.panel:hover::before {
  transform: scaleX(1);
}

.panel-heading {
  padding: var(--space-6);
  background: var(--gray-50);
  border-bottom: var(--border);
  position: relative;
}

.panel-title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--secondary);
  margin: 0;
  font-family: var(--font-display);
}

.panel-body {
  padding: var(--space-6);
}

.panel-footer {
  padding: var(--space-4) var(--space-6);
  background: var(--gray-50);
  border-top: var(--border);
  font-size: var(--text-sm);
  color: var(--gray-600);
}

/* Panel Variants */
.panel-default > .panel-heading {
  background: var(--gray-50);
  color: var(--gray-900);
}

.panel-primary > .panel-heading {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #ffffff;
  border: none;
}

.panel-primary .panel-title {
  color: #ffffff;
}

.panel-success > .panel-heading {
  background: var(--success);
  color: #ffffff;
  border: none;
}

.panel-warning > .panel-heading {
  background: var(--warning);
  color: #ffffff;
  border: none;
}

.panel-danger > .panel-heading {
  background: var(--error);
  color: #ffffff;
  border: none;
}

.panel-info > .panel-heading {
  background: var(--info);
  color: #ffffff;
  border: none;
}

/* Page Header */
.page-header {
  padding-bottom: var(--space-8);
  margin-bottom: var(--space-10);
  border-bottom: 2px solid var(--gray-200);
  position: relative;
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100px;
  height: 2px;
  background: var(--primary);
}

.page-header h1,
.page-header h2 {
  margin-bottom: var(--space-4);
  color: var(--secondary);
}

/* ========================================
   ÁREA DE CONTENIDO PRINCIPAL
   ======================================== */
.pkp_structure_main {
  padding-top: var(--space-6);
  padding-bottom: var(--space-12);
}

@media (min-width: 992px) {
  .pkp_structure_main {
    padding-top: var(--space-6);
    padding-bottom: var(--space-16);
  }
}

/* Contenido principal - más espaciado en desktop */
.pkp_structure_content,
[class*="col-lg-8"],
[class*="col-md-8"] {
  padding-right: var(--space-6);
}

@media (min-width: 992px) {
  .pkp_structure_content,
  [class*="col-lg-8"],
  [class*="col-md-8"] {
    padding-right: var(--space-8);
  }
}

/* ========================================
   SIDEBAR - BLOQUES MODERNOS Y RESPONSIVE
   ======================================== */
.pkp_sidebar,
aside.pkp_sidebar,
.pkp_structure_sidebar,
[role="complementary"] {
  padding-left: 0 !important;

  padding-top: var(--space-16) !important;
}

/* En móvil, centrar todo el contenido */
@media (max-width: 991px) {
  .pkp_sidebar,
  aside.pkp_sidebar,
  .pkp_structure_sidebar,
  [role="complementary"] {
    padding-left: var(--space-4) !important;
    padding-right: var(--space-4) !important;
    text-align: center;
  }
  
  .pkp_sidebar .pkp_block,
  aside.pkp_sidebar .pkp_block,
  .pkp_structure_sidebar .pkp_block {
    margin-left: auto !important;
    margin-right: auto !important;
    max-width: 100% !important;
  }
}

/* En desktop, agregar un poco de separación visual */
@media (min-width: 992px) {
  .pkp_sidebar,
  aside.pkp_sidebar,
  .pkp_structure_sidebar,
  [role="complementary"] {
    padding-left: var(--space-6) !important;
    padding-top: var(--space-16) !important;
    text-align: left;
  }
}

.pkp_block {
  margin-bottom: var(--space-8);
  background: #ffffff;
  border: var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
  position: relative;
  box-shadow: var(--shadow-sm);
}

/* Centrar bloques en móvil */
@media (max-width: 991px) {
  .pkp_block {
    margin-left: auto;
    margin-right: auto;
    max-width: 500px;
  }
  
  .pkp_block .content {
    text-align: center;
  }
  
  .pkp_block img {
    margin-left: auto !important;
    margin-right: auto !important;
    display: block !important;
  }
}

.pkp_block:hover {
  box-shadow: var(--shadow-md);
}

.pkp_block .title {
  padding: var(--space-5) var(--space-6);
  margin: 0;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--secondary);
  background: linear-gradient(135deg, var(--warm-50), var(--gray-50));
  border-bottom: var(--border);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-base);
}

.pkp_block .content {
  padding: var(--space-6);
}

.pkp_block ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.pkp_block ul li {
  padding: var(--space-4) var(--space-6);
  border-bottom: var(--border);
  transition: all var(--transition-base);
  position: relative;
}

.pkp_block ul li:last-child {
  border-bottom: none;
}

.pkp_block ul li:hover {
  background: var(--primary-alpha-10);
}

.pkp_block ul li a {
  color: var(--gray-700);
  font-size: var(--text-sm);
  font-weight: 500;
  display: block;
  transition: color var(--transition-base);
}

.pkp_block ul li a:hover {
  color: var(--primary);
}

/* Make Submission Block - Contenedor Invisible */
.pkp_block.block_make_submission {
  background: transparent;
  border: none;
  border-radius: 0;
  overflow: visible;
  box-shadow: none;
  margin-bottom: var(--space-8);
  transition: none;
  position: relative;
}

/* Eliminar decoración */
.pkp_block.block_make_submission::before {
  display: none;
}

.pkp_block.block_make_submission:hover {
  box-shadow: none;
  transform: none;
  border-color: transparent;
}

.pkp_block.block_make_submission .title {
  padding: 0;
  margin: 0 0 var(--space-4) 0;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--gray-600);
  background: transparent;
  border-bottom: none;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-family: var(--font-base);
}

/* Contenedor del enlace - Sin padding visible */
.pkp_block.block_make_submission .content,
.pkp_block.block_make_submission div.content {
  padding: 0;
  margin: 0;
  background: transparent;
}

/* Enlace principal "Enviar un artículo" - Minimalista y Elegante */
.pkp_block.block_make_submission a,
.pkp_block.block_make_submission .content a,
.pkp_block.block_make_submission div.content a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: var(--space-4) var(--space-6);
  color: #ffffff;
  font-size: var(--text-sm);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  border: none;
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 12px rgba(242, 99, 33, 0.3);
  transition: all 0.25s ease;
  letter-spacing: 0.03em;
}

.pkp_block.block_make_submission a:hover,
.pkp_block.block_make_submission .content a:hover,
.pkp_block.block_make_submission div.content a:hover {
  background: linear-gradient(135deg, var(--primary-hover), var(--primary-dark));
  box-shadow: 0 6px 16px rgba(242, 99, 33, 0.4);
  transform: translateY(-2px);
}

.pkp_block.block_make_submission a:active,
.pkp_block.block_make_submission .content a:active,
.pkp_block.block_make_submission div.content a:active {
  transform: translateY(0);
  box-shadow: 0 3px 10px rgba(242, 99, 33, 0.35);
}

/* Flecha simple */
.pkp_block.block_make_submission a::after,
.pkp_block.block_make_submission .content a::after,
.pkp_block.block_make_submission div.content a::after {
  content: '→';
  margin-left: var(--space-2);
  font-size: var(--text-base);
  transition: transform 0.25s ease;
  display: inline-block;
}

.pkp_block.block_make_submission a:hover::after,
.pkp_block.block_make_submission .content a:hover::after,
.pkp_block.block_make_submission div.content a:hover::after {
  transform: translateX(4px);
}

/* Custom Blocks */
.pkp_block.block_custom {
  background: #ffffff;
}

@media (min-width: 992px) {
  /* Mover el bloque del director del sidebar al área principal */
  .pkp_block.block_custom[id*="director"] {
    position: fixed;
    top: auto;
    left: 0;
    right: 0;
    width: 100%;
    max-width: var(--container-lg);
    margin: var(--space-12) auto;
    z-index: 1;
  }
}

.pkp_block.block_custom h2.title,
.pkp_block.block_custom .title {
  display: block;
  visibility: visible;
}

.pkp_block.block_custom h2.title.pkp_screen_reader,
.pkp_block.block_custom .title.pkp_screen_reader {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.pkp_block.block_custom .content {
  line-height: 1.8;
}

.pkp_block.block_custom .content p {
  margin-bottom: var(--space-4);
  color: var(--gray-700);
}

.pkp_block.block_custom .content img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: var(--space-6) auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base);
}

.pkp_block.block_custom .content img:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

/* ==========================================
   OPTIMIZACIÓN DE IMÁGENES EN BLOQUES
   ========================================== */

/* Bloques de Indexaciones - Solo íconos, sin sombras */
.pkp_block.block_custom[id*="indexacion"] .content img,
.pkp_block.block_custom[id*="indexing"] .content img,
.pkp_block.block_custom[id*="database"] .content img {
  max-width: 200px;
  margin: var(--space-4) auto;
  border-radius: var(--radius-md);
  box-shadow: none;
  background: transparent;
  padding: var(--space-2);
}

.pkp_block.block_custom[id*="indexacion"] .content img:hover,
.pkp_block.block_custom[id*="indexing"] .content img:hover,
.pkp_block.block_custom[id*="database"] .content img:hover {
  transform: scale(1.05);
  box-shadow: none;
}

/* Bloques de Redes Sociales - Íconos optimizados */
.pkp_block.block_custom[id*="red"] .content img,
.pkp_block.block_custom[id*="social"] .content img {
  max-width: 140px;
  margin: var(--space-4) auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  background: transparent;
  padding: var(--space-2);
}

.pkp_block.block_custom[id*="red"] .content img:hover,
.pkp_block.block_custom[id*="social"] .content img:hover {
  transform: scale(1.08);
  box-shadow: var(--shadow-md);
}

/* Bloques de Apoyo/Financiamiento - Logos limpios */
.pkp_block.block_custom[id*="apoyo"] .content img,
.pkp_block.block_custom[id*="financ"] .content img,
.pkp_block.block_custom[id*="sponsor"] .content img,
.pkp_block.block_custom[id*="support"] .content img {
  max-width: 180px;
  margin: var(--space-5) auto;
  border-radius: 0;
  box-shadow: none;
  background: transparent;
  padding: var(--space-3);
  filter: none;
}

.pkp_block.block_custom[id*="apoyo"] .content img:hover,
.pkp_block.block_custom[id*="financ"] .content img:hover,
.pkp_block.block_custom[id*="sponsor"] .content img:hover,
.pkp_block.block_custom[id*="support"] .content img:hover {
  transform: scale(1.03);
  box-shadow: none;
  opacity: 0.9;
}

/* Asegurar que las imágenes mantengan su aspect ratio */
.pkp_block.block_custom .content img {
  object-fit: contain;
}

/* Si la imagen es SVG, optimizar su renderizado */
.pkp_block.block_custom .content img[src$=".svg"] {
  box-shadow: none;
  border-radius: 0;
  background: transparent;
}

/* Mejorar la visualización de logos en fondo blanco */
.pkp_block.block_custom .content a {
  display: inline-block;
  text-align: center;
  width: 100%;
}

.pkp_block.block_custom .content a img {
  margin: var(--space-3) auto;
}

.pkp_block.block_custom .content a:hover {
  color: var(--primary-hover);
  text-decoration-thickness: 2px;
}

/* Responsive Sidebar */
@media (max-width: 991px) {
  .pkp_sidebar,
  aside.pkp_sidebar,
  .pkp_structure_sidebar,
  [role="complementary"] {
    padding-left: 0 !important;
    margin-top: var(--space-8) !important;
    padding-top: var(--space-6) !important;
  }
  
  .pkp_block {
    margin-bottom: var(--space-6);
  }
  
  /* Layout de 2 columnas en tablet */
  .sidebar-blocks-wrapper {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
}

@media (max-width: 767px) {
  .pkp_sidebar,
  aside.pkp_sidebar,
  .pkp_structure_sidebar,
  [role="complementary"] {
    padding-left: 0 !important;
    margin-top: var(--space-6) !important;
    padding-top: var(--space-6) !important;
  }
  
  /* 1 columna en móvil */
  .sidebar-blocks-wrapper {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  .pkp_block .title {
    padding: var(--space-4);
    font-size: var(--text-xs);
  }
  
  .pkp_block .content {
    padding: var(--space-4);
  }
  
  .pkp_block ul li {
    padding: var(--space-3) var(--space-4);
  }
  
  /* Optimizar imágenes en mobile */
  .pkp_block.block_custom .content img {
    max-width: 150px;
    margin: var(--space-3) auto;
  }
  
  .pkp_block.block_custom[id*="indexacion"] .content img,
  .pkp_block.block_custom[id*="indexing"] .content img,
  .pkp_block.block_custom[id*="database"] .content img {
    max-width: 140px;
  }
  
  .pkp_block.block_custom[id*="red"] .content img,
  .pkp_block.block_custom[id*="social"] .content img {
    max-width: 100px;
  }
  
  .pkp_block.block_custom[id*="apoyo"] .content img,
  .pkp_block.block_custom[id*="financ"] .content img,
  .pkp_block.block_custom[id*="sponsor"] .content img,
  .pkp_block.block_custom[id*="support"] .content img {
    max-width: 130px;
  }
}


/* ========================================
   ARTÍCULOS - DISEÑO MODERNO Y ELEGANTE
   ======================================== */
.obj_article_summary {
  padding: var(--space-8);
  margin-bottom: var(--space-8);
  background: #ffffff;
  border: var(--border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-elegant);
  position: relative;
  overflow: hidden;
}

.obj_article_summary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-elegant);
}

.obj_article_summary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, var(--primary-alpha-10));
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.obj_article_summary:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
  border-color: var(--primary);
}

.obj_article_summary:hover::before {
  transform: scaleX(1);
}

.obj_article_summary:hover::after {
  opacity: 1;
}

.obj_article_summary h3 {
  margin: 0 0 var(--space-4) 0;
  font-size: clamp(var(--text-xl), 3vw, var(--text-2xl));
  font-weight: 700;
  line-height: 1.3;
  font-family: var(--font-display);
}

.obj_article_summary h3 a {
  color: var(--secondary);
  transition: color var(--transition-base);
  position: relative;
  z-index: 1;
}

.obj_article_summary h3 a:hover {
  color: var(--primary);
}

.obj_article_summary .authors {
  color: var(--gray-600);
  font-size: var(--text-sm);
  font-weight: 500;
  margin-bottom: var(--space-5);
  font-style: italic;
}

.obj_article_summary .abstract {
  color: var(--gray-700);
  line-height: 1.8;
  margin-bottom: var(--space-5);
  font-size: var(--text-base);
}

.obj_article_summary .meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
  padding-top: var(--space-5);
  border-top: var(--border);
  font-size: var(--text-sm);
  color: var(--gray-600);
}

.obj_article_summary .meta::before {
  content: '';
  flex: 0 0 40px;
  height: 2px;
  background: var(--primary);
  margin-right: var(--space-2);
}

.obj_article_summary .keywords {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.obj_article_summary .keywords span {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background: var(--primary-alpha-10);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  transition: all var(--transition-base);
  border: 1px solid transparent;
}

.obj_article_summary .keywords span:hover {
  background: var(--primary);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* Article Full Page */
.page_article .main-content {
  background: #ffffff;
  padding: var(--space-12);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--space-12);
  position: relative;
}

.page_article .main-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--primary));
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.page_article h1 {
  color: var(--secondary);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 2px solid var(--gray-200);
}

.page_article .authors {
  font-size: var(--text-lg);
  color: var(--gray-600);
  margin-bottom: var(--space-8);
  font-style: italic;
  font-weight: 500;
}

.page_article .doi {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  background: var(--gray-100);
  border-radius: var(--radius-lg);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--gray-700);
  margin-bottom: var(--space-8);
}

.page_article .abstract {
  padding: var(--space-8);
  background: var(--warm-50);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-10);
}

.page_article .abstract h3 {
  color: var(--secondary);
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}

.page_article .keywords {
  margin-top: var(--space-8);
  padding-top: var(--space-8);
  border-top: var(--border);
}

.page_article .keywords strong {
  display: block;
  color: var(--secondary);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

.page_article .keywords span {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  background: var(--primary-alpha-10);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-right: var(--space-2);
  margin-bottom: var(--space-2);
  transition: all var(--transition-base);
}

.page_article .keywords span:hover {
  background: var(--primary);
  color: #ffffff;
  transform: translateY(-2px);
}

/* Galley Links - Download/View */
.galley-link {
  margin-bottom: var(--space-6);
}

.galley-link a {
  display: inline-flex;
  align-items: center;
  padding: var(--space-4) var(--space-6);
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #ffffff;
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-orange);
}

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

/* ========================================
   ISSUES - NÚMEROS DE LA REVISTA
   ======================================== */
.obj_issue_summary {
  display: flex;
  gap: var(--space-8);
  padding: var(--space-8);
  margin-bottom: var(--space-10);
  background: #ffffff;
  border: var(--border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-elegant);
  position: relative;
  overflow: hidden;
}

.obj_issue_summary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 5px;
  background: linear-gradient(180deg, var(--primary), var(--secondary));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition-elegant);
}

.obj_issue_summary:hover {
  box-shadow: var(--shadow-xl);
  transform: translateX(5px);
}

.obj_issue_summary:hover::before {
  transform: scaleY(1);
}

.obj_issue_summary .cover {
  flex: 0 0 200px;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
}

.obj_issue_summary .cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, rgba(249, 115, 22, 0.3));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.obj_issue_summary:hover .cover {
  transform: scale(1.05) rotate(-2deg);
  box-shadow: var(--shadow-xl);
}

.obj_issue_summary:hover .cover::after {
  opacity: 1;
}

.obj_issue_summary .cover img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-slow);
}

.obj_issue_summary:hover .cover img {
  transform: scale(1.1);
}

.obj_issue_summary h2 {
  color: var(--secondary);
  font-size: var(--text-3xl);
  margin-bottom: var(--space-5);
  position: relative;
  display: inline-block;
}

.obj_issue_summary h2::after {
  display: none;
}

.obj_issue_summary .description {
  color: var(--gray-700);
  line-height: 1.8;
  font-size: var(--text-base);
}

/* Current Issue Highlight */
.current_issue {
  position: relative;
  padding: var(--space-10);
  background: linear-gradient(135deg, var(--primary-alpha-10), var(--warm-50));
  border: 2px solid var(--primary);
  border-radius: var(--radius-2xl);
  margin-bottom: var(--space-12);
}

.current_issue_title {
  display: inline-block;
  padding: var(--space-2) var(--space-6);
  background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
  color: var(--gray-50);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-lg);
}

/* Responsive Articles & Issues */
@media (max-width: 991px) {
  .obj_issue_summary {
    flex-direction: column;
  }
  
  .obj_issue_summary .cover {
    flex: 0 0 auto;
    max-width: 300px;
    margin: 0 auto;
  }
}

@media (max-width: 767px) {
  .obj_article_summary,
  .obj_issue_summary,
  .page_article .main-content {
    padding: var(--space-6);
  }
  
  .obj_article_summary h3 {
    font-size: var(--text-lg);
  }
  
  .current_issue {
    padding: var(--space-6);
  }
}


/* ========================================
   FORMULARIOS - INPUTS MODERNOS
   ======================================== */
.form-control {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-family: var(--font-base);
  line-height: 1.5;
  color: var(--gray-800);
  background: #ffffff;
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.form-control:hover {
  border-color: var(--gray-400);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-alpha-10);
  outline: none;
  background: #ffffff;
}

.form-control::placeholder {
  color: var(--gray-400);
}

.form-group {
  margin-bottom: var(--space-6);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 600;
  color: var(--gray-900);
  font-size: var(--text-sm);
  letter-spacing: 0.01em;
}

.form-group label.required::after {
  content: '*';
  color: var(--error);
  margin-left: var(--space-1);
}

.help-block {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--gray-600);
  line-height: 1.5;
}

/* Input Groups */
.input-group {
  display: flex;
  align-items: stretch;
  width: 100%;
}

.input-group .form-control {
  flex: 1;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.input-group-addon {
  display: flex;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--gray-700);
  text-align: center;
  background: var(--gray-100);
  border: 2px solid var(--gray-300);
  border-left: none;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  white-space: nowrap;
}

.input-group .btn {
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

/* Checkboxes and Radios */
.checkbox label,
.radio label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 400;
  cursor: pointer;
  transition: color var(--transition-base);
}

.checkbox label:hover,
.radio label:hover {
  color: var(--primary);
}

/* Select */
select.form-control {
  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 fill='%23404040' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

/* ========================================
   TABLAS - DISEÑO PROFESIONAL
   ======================================== */
.table {
  width: 100%;
  margin-bottom: var(--space-8);
  border-collapse: separate;
  border-spacing: 0;
  background: #ffffff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.table thead {
  background: linear-gradient(135deg, var(--secondary), var(--secondary-hover));
  color: #ffffff;
}

.table thead th {
  padding: var(--space-4) var(--space-6);
  font-weight: 600;
  text-align: left;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 2px solid var(--primary);
}

.table tbody tr {
  border-bottom: var(--border);
  transition: all var(--transition-base);
}

.table tbody tr:hover {
  background: var(--primary-alpha-10);
  transform: scale(1.01);
}

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

.table tbody td {
  padding: var(--space-4) var(--space-6);
  color: var(--gray-700);
  font-size: var(--text-sm);
}

.table-striped tbody tr:nth-of-type(odd) {
  background: var(--gray-50);
}

.table-bordered {
  border: var(--border);
}

.table-bordered th,
.table-bordered td {
  border: var(--border);
}

.table-hover tbody tr:hover {
  background: var(--primary-alpha-10);
}

/* Responsive Table */
@media (max-width: 767px) {
  .table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  .table {
    font-size: var(--text-xs);
  }
  
  .table thead th,
  .table tbody td {
    padding: var(--space-3) var(--space-4);
  }
}

/* ========================================
   BREADCRUMBS - NAVEGACIÓN DE MIGAS
   ======================================== */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  padding: var(--space-4) 0;
  margin-bottom: var(--space-8);
  list-style: none;
  background: transparent;
  border-radius: var(--radius-lg);
}

.breadcrumb > li {
  display: flex;
  align-items: center;
  font-size: var(--text-sm);
  color: var(--gray-600);
}

.breadcrumb > li + li::before {
  content: '›';
  padding: 0 var(--space-3);
  color: var(--gray-400);
  font-weight: 400;
  font-size: var(--text-lg);
}

.breadcrumb > li a {
  color: var(--gray-600);
  font-weight: 500;
  transition: all var(--transition-base);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
}

.breadcrumb > li a:hover {
  color: var(--primary);
  background: var(--primary-alpha-10);
}

.breadcrumb > .active {
  color: var(--gray-900);
  font-weight: 600;
}

/* ========================================
   ALERTS - MENSAJES Y NOTIFICACIONES
   ======================================== */
.alert {
  position: relative;
  padding: var(--space-5) var(--space-6);
  padding-left: var(--space-12);
  margin-bottom: var(--space-6);
  border: 2px solid;
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.alert::before {
  content: '';
  position: absolute;
  left: var(--space-5);
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  border-radius: 50%;
}

.alert-success {
  background: #ecfdf5;
  border-color: var(--success);
  color: #065f46;
}

.alert-success::before {
  background: var(--success);
}

.alert-info {
  background: #eff6ff;
  border-color: var(--info);
  color: #075985;
}

.alert-info::before {
  background: var(--info);
}

.alert-warning {
  background: #fffbeb;
  border-color: var(--warning);
  color: #92400e;
}

.alert-warning::before {
  background: var(--warning);
}

.alert-danger {
  background: #fef2f2;
  border-color: var(--error);
  color: #991b1b;
}

.alert-danger::before {
  background: var(--error);
}

/* ========================================
   PAGINATION - PAGINACIÓN MODERNA
   ======================================== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-6) 0;
  list-style: none;
  margin: var(--space-8) 0;
}

.pagination > li > a,
.pagination > li > span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: var(--space-2) var(--space-3);
  color: var(--gray-700);
  font-weight: 500;
  font-size: var(--text-sm);
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  background: #ffffff;
}

.pagination > li > a:hover,
.pagination > li > span:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.pagination > .active > a,
.pagination > .active > span {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: var(--shadow-orange);
}

.pagination > .disabled > a,
.pagination > .disabled > span {
  color: var(--gray-400);
  pointer-events: none;
  background: var(--gray-100);
  border-color: var(--gray-200);
}

/* ========================================
   BADGES Y LABELS
   ======================================== */
.badge,
.label {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 700;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: var(--radius-full);
}

.badge-primary,
.label-primary {
  background: var(--primary);
  color: #ffffff;
}

.badge-success,
.label-success {
  background: var(--success);
  color: #ffffff;
}

.badge-warning,
.label-warning {
  background: var(--warning);
  color: #ffffff;
}

.badge-danger,
.label-danger {
  background: var(--error);
  color: #ffffff;
}

.badge-info,
.label-info {
  background: var(--info);
  color: #ffffff;
}

.badge-secondary,
.label-secondary {
  background: var(--secondary);
  color: #ffffff;
}

/* ========================================
   JUMBOTRON - HERO SECTION MODERNA
   ======================================== */
.jumbotron {
  position: relative;
  padding: var(--space-20) 0;
  margin-bottom: var(--space-12);
  background: linear-gradient(135deg, var(--warm-50), var(--gray-100));
  border-radius: var(--radius-2xl);
  overflow: hidden;
}

.jumbotron::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(135deg, transparent, var(--primary-alpha-10));
  pointer-events: none;
}

.jumbotron::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--primary));
}

.jumbotron .container {
  position: relative;
  z-index: 1;
}

.jumbotron h1,
.jumbotron h2,
.jumbotron p {
  color: var(--secondary);
}

.jumbotron h1 {
  font-size: clamp(var(--text-4xl), 6vw, var(--text-5xl));
  margin-bottom: var(--space-6);
  font-weight: 800;
  line-height: 1.1;
}

.jumbotron h1::after {
  content: '';
  display: block;
  width: 100px;
  height: 5px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  margin-top: var(--space-6);
  border-radius: var(--radius-full);
}

.jumbotron .lead {
  font-size: clamp(var(--text-lg), 2vw, var(--text-xl));
  color: var(--gray-700);
  margin-bottom: var(--space-8);
  max-width: 800px;
}

/* Homepage Image */
.homepage-image {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  margin: var(--space-12) 0;
  transition: transform var(--transition-elegant);
}

.homepage-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, rgba(15, 76, 129, 0.3));
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: 1;
}

.homepage-image:hover {
  transform: scale(1.02);
}

.homepage-image:hover::before {
  opacity: 1;
}

.homepage-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-slow);
}

.homepage-image:hover img {
  transform: scale(1.05);
}

/* Journal Description */
.journal-description {
  padding: var(--space-10);
  background: #ffffff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--space-12);
  position: relative;
  overflow: hidden;
}

.journal-description::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

/* ========================================
   ANNOUNCEMENTS - ANUNCIOS
   ======================================== */
.cmp_announcements {
  margin-bottom: var(--space-12);
}

.cmp_announcements .page-header {
  margin-bottom: var(--space-10);
}

.announcement_summary {
  padding: var(--space-8);
  margin-bottom: var(--space-8);
  background: #ffffff;
  border: var(--border);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.announcement_summary:hover {
  box-shadow: var(--shadow-lg);
  transform: translateX(4px);
  border-left-color: var(--secondary);
}

.announcement_summary h3 {
  color: var(--secondary);
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
}

.announcement_summary .date {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background: var(--primary-alpha-10);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

/* ========================================
   HOMEPAGE - CURRENT ISSUE STYLING
   Replicar diseño de página "Número Actual"
   ======================================== */

/* Normalizar contenedor principal en homepage */
.pkp_page_index .current_issue,
.pkp_page_index .obj_issue_toc {
  position: relative;
  padding: 0;
  background: transparent;
  border: none !important;
  border-radius: 0;
  margin-bottom: var(--space-12);
  box-shadow: none !important;
}

/* Asegurar que el contenido interno respete el contenedor sin recortar */
.pkp_page_index .current_issue .heading,
.pkp_page_index .obj_issue_toc .heading {
  width: 100% !important;
  max-width: 100% !important;
}

/* Controlar la row de Bootstrap para que no se desborde */
.pkp_page_index .current_issue .heading.row,
.pkp_page_index .obj_issue_toc .heading.row,
.issue-toc .heading.row,
.obj_issue_toc .heading.row {
  margin-left: 0 !important;
  margin-right: 0 !important;
}

/* Título del número actual en homepage */
.pkp_page_index .obj_issue_toc > h2,
.pkp_page_index .current_issue > h2 {
  color: var(--secondary);
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  font-weight: 700;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 3px solid var(--primary);
  position: relative;
}

.pkp_page_index .obj_issue_toc > h2::after,
.pkp_page_index .current_issue > h2::after {
  display: none;
}

/* Secciones - Mismo estilo que página de número */
.pkp_page_index .section {
  margin-bottom: var(--space-8);
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
  transition: none;
  position: relative;
  overflow: visible;
}

.pkp_page_index .section::before {
  display: none;
}

.pkp_page_index .section:hover {
  box-shadow: none;
  transform: none;
}

/* Títulos de sección */
.pkp_page_index .section > h3,
.pkp_page_index .section > .title {
  color: var(--secondary);
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--gray-200);
}

/* Artículos - Mantener estructura original con mejoras sutiles */
.pkp_page_index .obj_article_summary {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-6) 0;
  margin-bottom: 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--gray-200);
  border-radius: 0;
  transition: all var(--transition-base);
  position: relative;
  overflow: visible;
}

.pkp_page_index .obj_article_summary::before,
.pkp_page_index .obj_article_summary::after {
  display: none;
}

.pkp_page_index .obj_article_summary:last-child {
  border-bottom: none;
}

.pkp_page_index .obj_article_summary:hover {
  background: var(--warm-50);
  padding-left: var(--space-4);
  padding-right: var(--space-4);
  border-radius: var(--radius-md);
  box-shadow: none;
  transform: none;
}

/* Título del artículo */
.pkp_page_index .obj_article_summary h3,
.pkp_page_index .obj_article_summary .title {
  margin: 0 0 var(--space-2) 0;
  padding: 0;
  border: none;
}

.pkp_page_index .obj_article_summary h3 a,
.pkp_page_index .obj_article_summary .title a {
  color: var(--secondary);
  font-size: var(--text-lg);
  font-weight: 600;
  text-decoration: none;
  transition: color var(--transition-base);
  display: inline;
}

.pkp_page_index .obj_article_summary h3 a:hover,
.pkp_page_index .obj_article_summary .title a:hover {
  color: var(--primary);
}

/* Autores */
.pkp_page_index .obj_article_summary .authors {
  font-size: var(--text-sm);
  color: var(--gray-600);
  margin: var(--space-1) 0;
  font-style: italic;
  font-weight: 400;
}

/* Páginas */
.pkp_page_index .obj_article_summary .pages {
  font-size: var(--text-sm);
  color: var(--gray-500);
  margin-top: var(--space-1);
}

/* Abstract/Resumen */
.pkp_page_index .obj_article_summary .abstract,
.pkp_page_index .obj_article_summary .summary {
  color: var(--gray-700);
  font-size: var(--text-sm);
  line-height: 1.7;
  margin-top: var(--space-3);
}

/* Keywords */
.pkp_page_index .obj_article_summary .keywords {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.pkp_page_index .obj_article_summary .keywords span {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background: var(--primary-alpha-10);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  transition: all var(--transition-base);
  border: 1px solid transparent;
}

.pkp_page_index .obj_article_summary .keywords span:hover {
  background: var(--primary);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* Galeradas (PDF, HTML, etc.) */
.pkp_page_index .obj_article_summary .galleys,
.pkp_page_index .obj_article_summary .files {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
  flex-wrap: wrap;
}

.pkp_page_index .obj_article_summary .galleys a,
.pkp_page_index .obj_article_summary .files a,
.pkp_page_index .obj_galley_link a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: var(--primary);
  color: #ffffff;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 600;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.pkp_page_index .obj_article_summary .galleys a:hover,
.pkp_page_index .obj_article_summary .files a:hover,
.pkp_page_index .obj_galley_link a:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Cover Image del número - SOLO para números en lista */
.pkp_page_index .issues_archive .cover,
.pkp_page_index .obj_issue_summary .cover {
  max-width: 250px;
  margin: 0 auto var(--space-8);
  position: relative;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
  background: transparent;
  border: none;
  padding: 0;
}

/* Cover en issue-toc (número actual completo) - usar ancho completo del grid */
.pkp_page_index .obj_issue_toc .cover,
.issue-toc .cover,
.obj_issue_toc .cover {
  max-width: 100% !important;
  margin: 0 !important;
  width: 100% !important;
  overflow: visible !important;
}

.pkp_page_index .cover a {
  display: block;
  background: transparent;
  border: none;
  padding: 0;
}

.pkp_page_index .cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, rgba(249, 115, 22, 0.2));
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.pkp_page_index .cover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.pkp_page_index .cover:hover::after {
  opacity: 1;
}

.pkp_page_index .cover img {
  width: 100%;
  height: auto;
  display: block;
  border: none;
  background: transparent;
}

/* ========================================
   FIX: Eliminar cuadro blanco de portadas
   Sobrescribir estilos de Bootstrap .thumbnail
   SOLO en la vista de número individual, NO en archivo
   ======================================== */

/* Resetear SOLO los estilos visuales de .thumbnail, NO tocar layout */
.issue-toc .thumbnail,
.obj_issue_toc .thumbnail,
.pkp_page_index .current_issue .thumbnail {
  background-color: transparent !important;
  border: none !important;
  padding: 0 !important;
  margin-bottom: 0 !important;
  box-shadow: none !important;
  line-height: 0 !important;
  max-width: 100% !important;
  overflow: hidden !important;
}

/* NO tocar el comportamiento de columnas, Bootstrap ya lo maneja */
/* Solo eliminar fondos blancos del contenedor de la imagen */

.issue-toc .cover,
.obj_issue_toc .cover,
.pkp_page_index .current_issue .cover,
.issue-toc .thumbnail .cover,
.obj_issue_toc .thumbnail .cover {
  background: transparent !important;
  border: none !important;
  padding: 0 !important;
  display: block !important;
  line-height: 0 !important;
  max-width: 100% !important;
  width: 100% !important;
}

.issue-toc .cover a,
.obj_issue_toc .cover a,
.pkp_page_index .current_issue .cover a,
.issue-toc .thumbnail .cover a,
.obj_issue_toc .thumbnail .cover a {
  background: transparent !important;
  border: none !important;
  padding: 0 !important;
  display: block !important;
  line-height: 0 !important;
  max-width: 100% !important;
  width: 100% !important;
}

/* Imagen responsive que respeta el contenedor - clave para no desbordar */
.issue-toc .cover img,
.obj_issue_toc .cover img,
.pkp_page_index .current_issue .cover img,
.issue-toc .thumbnail img,
.obj_issue_toc .thumbnail img,
.issue-toc .thumbnail .img-responsive,
.obj_issue_toc .thumbnail .img-responsive {
  background: transparent !important;
  border: none !important;
  box-shadow: var(--shadow-lg) !important;
  border-radius: var(--radius-lg) !important;
  transition: all var(--transition-base) !important;
  width: 100% !important;
  max-width: 100% !important;
  height: auto !important;
  display: block !important;
  object-fit: contain !important;
}

.issue-toc .cover:hover img,
.obj_issue_toc .cover:hover img,
.pkp_page_index .current_issue .cover:hover img,
.issue-toc .thumbnail:hover img,
.obj_issue_toc .thumbnail:hover img {
  box-shadow: var(--shadow-xl) !important;
  transform: scale(1.02) !important;
}

/* Descripción del número */
.pkp_page_index .description,
.pkp_page_index .issue_description {
  color: var(--gray-700);
  line-height: 1.8;
  font-size: var(--text-base);
  margin-bottom: var(--space-8);
}

/* Badge del volumen/número */
.pkp_page_index .badge,
.pkp_page_index .label {
  display: inline-block;
  padding: var(--space-2) var(--space-5);
  background: var(--primary);
  color: #ffffff;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-4);
}

/* ========================================
   RESPONSIVE - HOMEPAGE CURRENT ISSUE
   ======================================== */

@media (max-width: 991px) {
  .pkp_page_index .obj_issue_toc > h2,
  .pkp_page_index .current_issue > h2 {
    font-size: var(--text-3xl);
  }

  .pkp_page_index .section > h3 {
    font-size: var(--text-xl);
  }

  .pkp_page_index .obj_article_summary {
    padding: var(--space-5) 0;
  }

  .pkp_page_index .cover {
    max-width: 220px;
  }
}

@media (max-width: 767px) {
  .pkp_page_index .obj_issue_toc > h2,
  .pkp_page_index .current_issue > h2 {
    font-size: var(--text-2xl);
  }

  .pkp_page_index .section {
    margin-bottom: var(--space-6);
  }

  .pkp_page_index .obj_article_summary {
    padding: var(--space-4) 0;
  }

  .pkp_page_index .obj_article_summary:hover {
    padding-left: var(--space-3);
    padding-right: var(--space-3);
  }

  .pkp_page_index .obj_article_summary h3 a,
  .pkp_page_index .obj_article_summary .title a {
    font-size: var(--text-base);
  }

  .pkp_page_index .cover {
    max-width: 180px;
  }

  .pkp_page_index .obj_article_summary .galleys,
  .pkp_page_index .obj_article_summary .files {
    flex-direction: column;
  }

  .pkp_page_index .obj_article_summary .galleys a,
  .pkp_page_index .obj_article_summary .files a {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .pkp_page_index .obj_article_summary {
    padding: var(--space-3) 0;
  }

  .pkp_page_index .cover {
    max-width: 150px;
  }
}

/* ========================================
   FOOTER - FACULTAD DE CIENCIAS EMPRESARIALES (FACE)
   DISEÑO BASADO EN IMAGEN DE REFERENCIA
   ======================================== */

/* CONTENEDOR PRINCIPAL */
footer[role="contentinfo"],
.footer-face,
.footer,
.pkp_structure_footer,
.pkp_structure_footer_wrapper {
  position: relative;
  padding: 0 !important;
  margin-top: 0;
  background: #23364e !important; /* Color azul oscuro según imagen */
  color: #ffffff !important;
  overflow: hidden;
}

.footer-face-custom {
  padding: 50px 0 25px;
  position: relative;
  z-index: 2;
}

/* ==========================================
   MARCA DE AGUA "UBB" (FONDO)
   ========================================== */
.footer-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 30rem;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.025);
  font-family: 'Arial Black', sans-serif;
  letter-spacing: 0.15em;
  pointer-events: none;
  z-index: 1;
  line-height: 1;
  user-select: none;
}

/* ==========================================
   SECCIÓN PRINCIPAL: 3 COLUMNAS
   ========================================== */
.footer-main-section {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 60px;
  align-items: center;
  margin-bottom: 30px;
  position: relative;
  z-index: 2;
  padding: 0 20px;
}

/* ==========================================
   COLUMNA IZQUIERDA: CONTACTO
   ========================================== */
.footer-contact-column {
  flex: 1;
  max-width: 600px;
}

.footer-email {
  margin: 0 0 20px 0;
  font-size: 1.1rem;
  font-weight: 300;
}

.footer-email a {
  color: #FF6B35;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
}

.footer-email a:hover {
  color: #FF8555;
  text-decoration: none;
}

.footer-location {
  margin: 0 0 12px 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.95);
  font-weight: 300;
}

.footer-location strong {
  color: #ffffff;
  font-weight: 600;
  margin-right: 4px;
}

.footer-location:last-child {
  margin-bottom: 0;
}

/* ==========================================
   COLUMNA CENTRO: LOGO UBB SELLO
   ========================================== */
.footer-logo-center {
  flex: 0 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

.footer-img-sello {
  height: 110px;
  width: auto;
  display: block;
  transition: all 0.3s ease;
  filter: brightness(1);
  opacity: 0.98;
}

.footer-img-sello:hover {
  transform: scale(1.05);
  filter: brightness(1.1);
  opacity: 1;
}

/* ==========================================
   COLUMNA DERECHA: LOGO ACREDITACIÓN CNA
   ========================================== */
.footer-logo-right {
  flex: 0 0 auto;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.footer-img-acreditacion {
  height: 110px;
  width: auto;
  display: block;
  transition: all 0.3s ease;
  filter: brightness(1);
  opacity: 0.98;
}

.footer-img-acreditacion:hover {
  transform: scale(1.05);
  filter: brightness(1.1);
  opacity: 1;
}

/* ==========================================
   LÍNEA SEPARADORA
   ========================================== */
.footer-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.15);
  margin: 0 20px 25px;
}

/* ==========================================
   SECCIÓN INFERIOR: COPYRIGHT + REDES SOCIALES
   ========================================== */
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
  gap: 30px;
}

.footer-copyright-text {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 300;
  line-height: 1.5;
}

.footer-copyright-text strong {
  font-weight: 600;
  color: #ffffff;
}

/* ==========================================
   ISSN SECTION - Identificadores de la Revista
   ========================================== */
.footer-issn-section {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-issn-container {
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  margin: 0;
}

.footer-issn-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 400;
  white-space: nowrap;
  transition: all var(--transition-base);
}

.footer-issn-item:hover {
  transform: translateY(-2px);
}

.footer-issn-label {
  font-weight: 700;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.75rem;
  opacity: 0.9;
}

.footer-issn-number {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1rem;
  color: var(--primary-pale);
  letter-spacing: 1px;
  background: rgba(249, 115, 22, 0.15);
  padding: 6px 14px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(249, 115, 22, 0.25);
  box-shadow: 0 2px 8px rgba(249, 115, 22, 0.1);
  transition: all var(--transition-base);
}

.footer-issn-item:hover .footer-issn-number {
  background: rgba(249, 115, 22, 0.2);
  border-color: rgba(249, 115, 22, 0.35);
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.15);
}

.footer-issn-separator {
  color: rgba(255, 255, 255, 0.25);
  font-weight: 300;
  font-size: 1.2rem;
  user-select: none;
}

/* ==========================================
   REDES SOCIALES
   ========================================== */
.footer-social-icons {
  display: flex;
  gap: 15px;
  align-items: center;
}

.footer-social-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: #ffffff;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 1rem;
}

.footer-social-icons a:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-3px);
  color: #ffffff;
}

.footer-social-icons a i {
  line-height: 1;
}

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

/* Tablets (≤ 991px) */
@media (max-width: 991px) {
  .footer-main-section {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .footer-contact-column {
    max-width: 100%;
  }
  
  .footer-logo-center,
  .footer-logo-right {
    justify-content: center;
  }
  
  .footer-img-sello,
  .footer-img-acreditacion {
    height: 90px;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
  
  .footer-issn-section {
    margin-bottom: 18px;
    padding-bottom: 18px;
  }
  
  .footer-issn-container {
    gap: 16px;
  }
  
  .footer-issn-item {
    font-size: 0.9rem;
  }
  
  .footer-issn-label {
    font-size: 0.7rem;
  }
  
  .footer-issn-number {
    font-size: 0.95rem;
    padding: 5px 12px;
  }
  
  .footer-watermark {
    font-size: 20rem;
  }
}

/* Mobile (≤ 767px) */
@media (max-width: 767px) {
  .footer-face-custom {
    padding: 40px 15px 20px;
  }
  
  .footer-main-section {
    gap: 35px;
    padding: 0 10px;
  }
  
  .footer-email {
    font-size: 1rem;
    margin-bottom: 18px;
  }
  
  .footer-location {
    font-size: 0.85rem;
    line-height: 1.5;
  }
  
  .footer-img-sello,
  .footer-img-acreditacion {
    height: 75px;
  }
  
  .footer-divider {
    margin: 0 10px 20px;
  }
  
  .footer-bottom {
    padding: 0 10px;
  }
  
  .footer-copyright-text {
    font-size: 0.82rem;
  }
  
  .footer-issn-section {
    margin-bottom: 16px;
    padding-bottom: 16px;
  }
  
  .footer-issn-container {
    gap: 14px;
  }
  
  .footer-issn-item {
    font-size: 0.85rem;
  }
  
  .footer-issn-label {
    font-size: 0.68rem;
  }
  
  .footer-issn-number {
    font-size: 0.88rem;
    padding: 5px 10px;
  }
  
  .footer-social-icons a {
    width: 34px;
    height: 34px;
    font-size: 0.95rem;
  }
  
  .footer-watermark {
    font-size: 15rem;
  }
}

/* Extra Small (≤ 480px) */
@media (max-width: 480px) {
  .footer-face-custom {
    padding: 35px 12px 18px;
  }
  
  .footer-email {
    font-size: 0.95rem;
  }
  
  .footer-location {
    font-size: 0.8rem;
  }
  
  .footer-img-sello,
  .footer-img-acreditacion {
    height: 65px;
  }
  
  .footer-copyright-text {
    font-size: 0.78rem;
  }
  
  .footer-issn-section {
    margin-bottom: 14px;
    padding-bottom: 14px;
  }
  
  .footer-issn-container {
    flex-direction: column;
    gap: 12px;
  }
  
  .footer-issn-item {
    font-size: 0.82rem;
    gap: 8px;
  }
  
  .footer-issn-label {
    font-size: 0.65rem;
  }
  
  .footer-issn-number {
    font-size: 0.85rem;
    padding: 4px 10px;
  }
  
  .footer-issn-separator {
    display: none;
  }
  
  .footer-social-icons {
    gap: 12px;
  }
  
  .footer-social-icons a {
    width: 32px;
    height: 32px;
    font-size: 0.9rem;
  }
  
  .footer-watermark {
    font-size: 10rem;
  }
}

/* ==========================================
   LIMPIEZA DE ESTILOS HEREDADOS
   ========================================== */
.pkp_structure_footer::before,
.pkp_structure_footer::after,
.footer-face::before,
.footer::before {
  display: none !important;
}

.pkp_structure_footer .container {
  position: relative;
  z-index: 1;
}

/* Asegurar renderizado correcto de SVGs */
.footer-img-sello,
.footer-img-acreditacion {
  object-fit: contain;
  max-height: none;
}

/* ========================================
   UTILIDADES - HELPERS Y CLASES DE SOPORTE
   ======================================== */


/* Text Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-justify { text-align: justify; }

.text-uppercase { text-transform: uppercase; }
.text-lowercase { text-transform: lowercase; }
.text-capitalize { text-transform: capitalize; }

.text-primary { color: var(--primary) !important; }
.text-secondary { color: var(--secondary) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger { color: var(--error) !important; }
.text-info { color: var(--info) !important; }
.text-muted { color: var(--gray-600) !important; }

/* Background Utilities */
.bg-primary { background-color: var(--primary) !important; }
.bg-secondary { background-color: var(--secondary) !important; }
.bg-light { background-color: var(--gray-50) !important; }
.bg-white { background-color: #ffffff !important; }

/* Display Utilities */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-flex { display: flex !important; }

/* Flex Utilities */
.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.justify-content-start { justify-content: flex-start !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-end { justify-content: flex-end !important; }
.justify-content-between { justify-content: space-between !important; }
.align-items-start { align-items: flex-start !important; }
.align-items-center { align-items: center !important; }
.align-items-end { align-items: flex-end !important; }

/* Spacing Utilities */
.m-0 { margin: 0 !important; }
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.p-0 { padding: 0 !important; }
.pt-0 { padding-top: 0 !important; }
.pb-0 { padding-bottom: 0 !important; }

/* Border Utilities */
.border { border: var(--border) !important; }
.border-primary { border-color: var(--primary) !important; }
.border-0 { border: 0 !important; }
.rounded { border-radius: var(--radius-lg) !important; }
.rounded-0 { border-radius: 0 !important; }

/* Shadow Utilities */
.shadow-none { box-shadow: none !important; }
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }

/* Image Utilities */
.img-responsive,
.img-fluid {
  max-width: 100%;
  height: auto;
  display: block;
}

.img-rounded {
  border-radius: var(--radius-lg);
}

.img-circle {
  border-radius: 50%;
}

/* Clearfix */
.clearfix::after {
  content: "";
  display: table;
  clear: both;
}

/* Screen Reader Only */
.sr-only,
.pkp_screen_reader {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ========================================
   RESPONSIVE UTILITIES - MOBILE FIRST
   ======================================== */

/* Hide/Show en diferentes breakpoints */
@media (max-width: 575px) {
  .hidden-xs { display: none !important; }
  .visible-xs { display: block !important; }
}

@media (min-width: 576px) and (max-width: 767px) {
  .hidden-sm { display: none !important; }
  .visible-sm { display: block !important; }
}

@media (min-width: 768px) and (max-width: 991px) {
  .hidden-md { display: none !important; }
  .visible-md { display: block !important; }
}

@media (min-width: 992px) {
  .hidden-lg { display: none !important; }
  .visible-lg { display: block !important; }
}

/* Mobile Responsive (< 768px) */
@media (max-width: 767px) {
  h1 { font-size: clamp(var(--text-3xl), 8vw, var(--text-4xl)); }
  h2 { font-size: clamp(var(--text-2xl), 6vw, var(--text-3xl)); }
  h3 { font-size: var(--text-xl); }
  
  .jumbotron {
    padding: var(--space-12) 0;
  }
  
  .btn {
    width: 100%;
    margin-bottom: var(--space-3);
  }
  
  .btn-group {
    flex-direction: column;
  }
  
  .btn-group .btn {
    border-radius: var(--radius-lg) !important;
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  }
  
  .btn-group .btn:last-child {
    border-bottom: none;
  }
}

/* Small Mobile (< 480px) */
@media (max-width: 480px) {
  :root {
    font-size: 14px;
  }
  
  .container {
    padding-left: var(--space-3);
    padding-right: var(--space-3);
  }
  
  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }
}

/* ========================================
   ACCESIBILIDAD - WCAG 2.1 AA
   ======================================== */

/* Focus States Mejorados */
*:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

button:focus,
a:focus,
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Skip Links para navegación con teclado */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary);
  color: #ffffff;
  padding: var(--space-2) var(--space-4);
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* Reduced Motion para usuarios sensibles */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  * {
    border-width: 2px !important;
  }
  
  .btn {
    border: 3px solid currentColor !important;
  }
}

/* ========================================
   CUSTOM SCROLLBAR - MODERN DESIGN
   ======================================== */
::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--primary-hover));
  border-radius: var(--radius-full);
  border: 2px solid var(--gray-100);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--primary-hover), var(--primary-dark));
}

/* Firefox Scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--primary) var(--gray-100);
}

/* ========================================
   PRINT STYLES - OPTIMIZADO PARA IMPRESIÓN
   ======================================== */
@media print {
  *,
  *::before,
  *::after {
    background: #ffffff !important;
    color: #000000 !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }
  
  a,
  a:visited {
    text-decoration: underline;
  }
  
  a[href]::after {
    content: " (" attr(href) ")";
  }
  
  thead {
    display: table-header-group;
  }
  
  tr,
  img {
    page-break-inside: avoid;
  }
  
  p,
  h2,
  h3 {
    orphans: 3;
    widows: 3;
  }
  
  h2,
  h3 {
    page-break-after: avoid;
  }
  
  .navbar,
  .pkp_structure_footer,
  .breadcrumb,
  .pagination,
  .btn {
    display: none !important;
  }
}

/* ========================================
   FIN DEL DISEÑO MODERNO
   Revista de Economía - OJS 3.5
   Responsive, Accesible, Profesional
   ======================================== */