:root {
  --primary-color: #0056b3;
  --secondary-color: #00c2ff;
  --gradient-start: rgba(0, 86, 179, 0.85);
  --gradient-end: rgba(0, 194, 255, 0.85);
  --button-primary: linear-gradient(to right, #007bff, #0056b3);
  --button-secondary: linear-gradient(to right, #6c757d, #343a40);
  --button-success: linear-gradient(to right, #28a745, #1e7e34);
  --button-danger: linear-gradient(to right, #dc3545, #bd2130);
  --button-warning: linear-gradient(to right, #ffc107, #d39e00);
  --button-info: linear-gradient(to right, #17a2b8, #138496);
  --background-color: #f8f9fa;
  --card-background: #ffffff;
  --text-color: #333;
  --text-muted: #6c757d;
  --header-text-color: #212529;
  --border-color: rgba(0, 0, 0, 0.125);
  --toast-opacity: 0.95;
  --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-size-base: 16px;
  --font-size-lg: 1.25rem;
  --font-size-xl: 2rem;
  --font-size-xxl: 3rem;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 40px;
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --box-shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --box-shadow-md: 0 4px 8px rgba(0,0,0,0.1);
  --box-shadow-lg: 0 8px 16px rgba(0,0,0,0.1);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

html, body {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
  box-sizing: border-box;
}

body {
  padding-top: 70px;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  color: var(--header-text-color);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--spacing-md);
}

.lead {
  font-size: var(--font-size-lg);
  font-weight: 300;
}

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

/* ===== NAVIGATION ===== */
.navbar {
  background: white;
  box-shadow: var(--box-shadow-md);
  transition: all var(--transition-normal);
  padding: var(--spacing-sm) var(--spacing-md);
  z-index: 1030;
}

.navbar-brand {
  font-weight: bold;
  font-size: 1.5rem;
  color: var(--primary-color) !important;
  transition: all var(--transition-normal);
}

.navbar-brand:hover {
  color: var(--secondary-color) !important;
  transform: scale(1.05);
}

.navbar-nav .nav-link {
  cursor: pointer;
  color: var(--text-color) !important;
  margin-right: var(--spacing-md);
  font-weight: 500;
  position: relative;
  transition: all var(--transition-normal);
  padding: var(--spacing-xs) var(--spacing-sm);
}

.navbar-nav .nav-link:after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--primary-color);
  transition: width var(--transition-normal);
}

.navbar-nav .nav-link:hover:after,
.navbar-nav .nav-item.active .nav-link:after {
  width: 100%;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-item.active .nav-link {
  color: var(--primary-color) !important;
}

.navbar-toggler {
  border: none;
  background: transparent;
  transition: all var(--transition-fast);
}

.navbar-toggler:focus {
  outline: none;
  box-shadow: none;
}

.navbar-toggler:hover {
  transform: scale(1.1);
}

/* ===== HERO SECTION ===== */
.hero-section {
  width: 100%;
  height: 100vh;
  min-height: 100vh; /* Altura mínima para evitar CLS */
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end)), url('/resources/images/background.jpg');
  background-size: cover;
  background-position: center;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden; /* Evita desplazamiento de contenido */
}

.hero-content {
  width: 90%;
  max-width: 800px;
  min-height: 400px; /* Dimensión mínima para prevenir CLS */
  text-align: center;
  background-color: rgba(0, 0, 0, 0.6);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow-lg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  animation: fadeIn 1s ease-out;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center; /* Centra los elementos hijo horizontalmente */
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-content:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0,0,0,0.2);
}

/* Logo consolidado con todos los estilos necesarios */
#app-logo {
  width: 150px;
  height: 150px;
  object-fit: contain;
  margin-bottom: var(--spacing-md);
  
  /* Propiedades de centrado */
  margin-left: auto;
  margin-right: auto;
  display: block;
  
  /* Otras propiedades importantes */
  transition: transform var(--transition-normal);
  filter: drop-shadow(0 4px 6px rgba(0,0,0,0.1));
  aspect-ratio: 1 / 1;
}

#app-logo:hover {
  transform: rotate(10deg) scale(1.1);
}

.hero-content h1 {
  font-size: var(--font-size-xxl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
  color: white;
}

.hero-content p.lead {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
  font-weight: 300;
  color: #f0f0f0;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

/* ===== BUTTONS ===== */
.btn {
  border: none;
  font-weight: 500;
  padding: 0.6rem 1.5rem;
  border-radius: 30px;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.9rem;
  box-shadow: var(--box-shadow-sm);
}

.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

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

.btn-lg {
  padding: 0.75rem 2rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
}

.btn-primary {
  background: var(--button-primary);
  color: white;
}

.btn-primary:hover {
  background: linear-gradient(to right, #0062cc, #004494);
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-md);
}

.btn-secondary {
  background: var(--button-secondary);
  color: white;
}

.btn-secondary:hover {
  background: linear-gradient(to right, #5a6268, #2d3238);
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-md);
}

.btn-success {
  background: var(--button-success);
  color: white;
}

.btn-success:hover {
  background: linear-gradient(to right, #218838, #1a692c);
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-md);
}

.btn-danger {
  background: var(--button-danger);
  color: white;
}

.btn-danger:hover {
  background: linear-gradient(to right, #c82333, #ad1f2d);
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-md);
}

.btn-warning {
  background: var(--button-warning);
  color: #212529;
}

.btn-warning:hover {
  background: linear-gradient(to right, #e0a800, #ba8b00);
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-md);
}

.btn-info {
  background: var(--button-info);
  color: white;
}

.btn-info:hover {
  background: linear-gradient(to right, #138496, #0f6674);
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-md);
}

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

.btn-outline-primary:hover {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-md);
}

.btn-outline-secondary {
  background: transparent;
  border: 2px solid var(--text-muted);
  color: var(--text-muted);
}

.btn-outline-secondary:hover {
  background-color: var(--text-muted);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-md);
}

.btn:disabled {
  background-color: #cccccc;
  color: #666666;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ===== CARDS & CONTAINERS ===== */
.card {
  background-color: var(--card-background);
  border-radius: var(--border-radius-md);
  box-shadow: var(--box-shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--box-shadow-lg);
}

.card-header {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.03);
}

.card-body {
  padding: var(--spacing-md);
}

.card-footer {
  padding: var(--spacing-md);
  border-top: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.03);
}

.vocab-card {
  max-width: 500px;
  margin: auto;
  text-align: center;
  padding: var(--spacing-lg);
  background-color: var(--card-background);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: 1px solid var(--border-color);
}

.vocab-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--box-shadow-lg);
}

.word {
  font-size: 2rem;
  font-weight: bold;
  color: var(--primary-color);
  margin-top: var(--spacing-md);
}

.translation {
  font-size: 1.8rem;
  margin-top: var(--spacing-md);
  display: none;
  color: var(--text-color);
}

/* ===== SPECIAL ELEMENTS ===== */
#favorito-btn {
  font-size: 30px;
  background: none;
  border: none;
  outline: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  padding: 5px;
  border-radius: 50%;
}

#favorito-btn:hover {
  transform: scale(1.2);
  background-color: rgba(0, 0, 0, 0.05);
}

#favorito-icon {
  transition: color var(--transition-normal);
}

#favorito-btn:hover #favorito-icon {
  color: gold !important;
}

.answer-buttons {
  display: flex;
  justify-content: center;
  margin-top: var(--spacing-md);
}

.answer-buttons button {
  width: 60px;
  height: 60px;
  font-size: 1.5rem;
  margin: var(--spacing-sm);
  border-radius: 50%;
  cursor: pointer;
  border: none;
  outline: none;
  transition: transform var(--transition-fast), background-color var(--transition-normal);
  box-shadow: var(--box-shadow-sm);
}

.answer-buttons button:hover {
  transform: scale(1.1);
  box-shadow: var(--box-shadow-md);
}

.answer-buttons .btn-success {
  background: var(--button-success);
  color: white;
}

.answer-buttons .btn-danger {
  background: var(--button-danger);
  color: white;
}

/* ===== FORMS ===== */
.form-control {
  border-radius: var(--border-radius-md);
  padding: 0.6rem 1rem;
  border: 1px solid #ced4da;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.input-group {
  margin-bottom: var(--spacing-md);
}

.input-group-append .btn {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.form-control-file {
  padding: var(--spacing-sm) 0;
}

/* ===== TABLES ===== */
.table {
  width: 100%;
  margin-bottom: var(--spacing-md);
  color: var(--text-color);
  border-collapse: collapse;
}

.table th,
.table td {
  padding: var(--spacing-md);
  vertical-align: middle;
  border-top: 1px solid var(--border-color);
}

.table thead th {
  vertical-align: bottom;
  border-bottom: 2px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.03);
  color: var(--header-text-color);
  font-weight: 600;
}

.table-bordered {
  border: 1px solid var(--border-color);
}

.table-bordered th,
.table-bordered td {
  border: 1px solid var(--border-color);
}

.table-striped tbody tr:nth-of-type(odd) {
  background-color: rgba(0, 0, 0, 0.02);
}

.table-hover tbody tr:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

/* ===== UTILITIES ===== */
.loading-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  margin-top: var(--spacing-xl);
}

.spinner-border {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  vertical-align: text-bottom;
  border: 0.25em solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spinner-border .75s linear infinite;
}

@keyframes spinner-border {
  to { transform: rotate(360deg); }
}

.toast {
  min-width: 250px;
  border-radius: var(--border-radius-md);
  box-shadow: var(--box-shadow-md);
  opacity: var(--toast-opacity);
  animation: toastFadeIn 0.5s ease;
}

@keyframes toastFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: var(--toast-opacity); transform: translateY(0); }
}

.bg-success {
  background-color: #28a745 !important;
}

.bg-danger {
  background-color: #dc3545 !important;
}

.bg-warning {
  background-color: #ffc107 !important;
}

.bg-info {
  background-color: #17a2b8 !important;
}

.text-white {
  color: white !important;
}

.text-dark {
  color: #343a40 !important;
}

/* ===== SECTIONS ===== */
#home-section,
#play-section,
#lista-palabras,
#favorites-section,
#progreso-usuario,
#review-incorrect-words,
#register-section,
#login-section {
  width: 100%;
  padding: var(--spacing-xl) var(--spacing-md);
  box-sizing: border-box;
  background-color: white;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
  display: inline-block;
  padding-bottom: var(--spacing-sm);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  border-radius: 2px;
}

/* ===== PROFILE PAGE ===== */
.profile-photo {
  width: 150px;
  height: 150px;
  object-fit: cover;
  border-radius: 50%;
  margin-bottom: var(--spacing-md);
  box-shadow: var(--box-shadow-md);
  border: 4px solid white;
  transition: transform var(--transition-normal);
}

.profile-photo:hover {
  transform: scale(1.05);
}

.profile-sub-section {
  opacity: 0;
  display: none;
  padding: var(--spacing-lg) 0;
  transition: opacity var(--transition-normal);
}

.profile-sub-section.show {
  display: block;
  opacity: 1;
  animation: fadeIn 0.5s ease forwards;
}

/* ===== CUSTOM VOCAB SECTION ===== */
#info-icon {
  cursor: help;
  color: var(--primary-color);
  transition: transform var(--transition-normal);
}

#info-icon:hover {
  transform: scale(1.2);
}

#file-name-label {
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: var(--spacing-sm);
}

#upload-status {
  min-height: 24px;
  color: var(--primary-color);
  font-weight: 500;
}

/* ===== BADGES ===== */
.badge {
  display: inline-block;
  padding: 0.35em 0.65em;
  font-size: 0.75em;
  font-weight: 600;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: 50rem;
  transition: all var(--transition-normal);
}

.badge-primary {
  background-color: var(--primary-color);
  color: white;
}

.badge-success {
  background-color: #28a745;
  color: white;
}

.badge-info {
  background-color: #17a2b8;
  color: white;
}

.badge-warning {
  background-color: #ffc107;
  color: #212529;
}

.badge-danger {
  background-color: #dc3545;
  color: white;
}

/* ===== RESPONSIVE ADJUSTMENTS ===== */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  h3 {
    font-size: 1.25rem;
  }
  
  .hero-content {
    padding: var(--spacing-md);
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .hero-content p.lead {
    font-size: 1.1rem;
  }
  
  .vocab-card {
    padding: var(--spacing-md);
  }
  
  .word {
    font-size: 1.75rem;
  }
  
  .translation {
    font-size: 1.5rem;
  }
  
  .answer-buttons button {
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
  }
  
  .navbar-brand {
    font-size: 1.3rem;
  }
  
  .navbar-nav .nav-link {
    margin-right: var(--spacing-sm);
    font-size: 0.9rem;
  }
  
  .btn {
    padding: 0.5rem 1.2rem;
    font-size: 0.85rem;
  }

  .nav-col {
    flex: 0 0 100%;
  }

  .hero-content {
    min-height: 350px;
  }
  
  #app-logo {
    width: 120px;
    height: 120px;
  }
  
  .hero-section {
    min-height: 90vh;
  }
}

@media (max-width: 576px) {
  .hero-content h1 {
    font-size: 1.75rem;
  }
  
  .hero-content p.lead {
    font-size: 1rem;
  }
  
  .btn-lg {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
  }
  
  .table th,
  .table td {
    padding: var(--spacing-sm);
    font-size: 0.9rem;
  }
  
  .navbar-brand {
    font-size: 1.2rem;
  }
}

/* Enhanced navigation for all pages - add this to styles.css */
.page-navigation {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid #eee;
}

.nav-row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -10px;
}

.nav-col {
  flex: 1;
  padding: 0 10px;
  margin-bottom: 15px;
}

.nav-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 10px 15px;
  border-radius: 4px;
  transition: all 0.3s ease;
  text-align: center;
  color: var(--primary-color);
  background-color: transparent;
  border: 1px solid var(--primary-color);
  cursor: pointer;
  font-weight: 500;
}

.nav-button:hover {
  background-color: var(--primary-color);
  color: white;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.nav-button i {
  margin-right: 8px;
}

.nav-home {
  color: #28a745;
  border-color: #28a745;
}

.nav-home:hover {
  background-color: #28a745;
  color: white;
}

.nav-play {
  color: #17a2b8;
  border-color: #17a2b8;
}

.nav-play:hover {
  background-color: #17a2b8;
  color: white;
}

.nav-list {
  color: #6c757d;
  border-color: #6c757d;
}

.nav-list:hover {
  background-color: #6c757d;
  color: white;
}

.nav-grammar {
  color: #fd7e14;
  border-color: #fd7e14;
}

.nav-grammar:hover {
  background-color: #fd7e14;
  color: white;
}

.nav-custom {
  color: #9c27b0;
  border-color: #9c27b0;
}

.nav-custom:hover {
  background-color: #9c27b0;
  color: white;
}

.nav-profile {
  color: #007bff;
  border-color: #007bff;
}

.nav-profile:hover {
  background-color: #007bff;
  color: white;
}

/* Nuevos estilos para la home mejorada */
.bg-primary-light {
  background-color: rgba(0, 123, 255, 0.1);
}

.bg-success-light {
  background-color: rgba(40, 167, 69, 0.1);
}

.icon-circle {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.shadow-hover {
  transition: all 0.3s ease;
}

.shadow-hover:hover {
  transform: translateY(-10px);
  box-shadow: 0 1rem 3rem rgba(0,0,0,.175)!important;
}

.bg-gradient-primary {
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
}

.stat-counter {
  font-size: 3rem;
  font-weight: 700;
}

.feature-icon {
  min-width: 50px;
  text-align: center;
}

/* Animación para contador de estadísticas */
@keyframes countUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.stat-counter {
  animation: countUp 1s ease-out forwards;
}

/* Estilos para las tarjetas de tipos de vocabulario */
.vocab-type-card {
  transition: all 0.3s ease;
  cursor: pointer;
  border: 2px solid transparent;
}

.vocab-type-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.vocab-type-card.selected {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

#vocabulary-type-modal .modal-content {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.icon-circle {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.bg-primary-light {
  background-color: rgba(0, 123, 255, 0.1);
}

.bg-success-light {
  background-color: rgba(40, 167, 69, 0.1);
}

.bg-info-light {
  background-color: rgba(23, 162, 184, 0.1);
}

/* Improved toast styling */
#toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  max-width: 350px;
}

/* Toast item styling */
.toast-stack-item {
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  transition: all 0.3s ease;
}

/* Responsive adjustments */
@media (max-width: 576px) {
  #toast-container {
    max-width: 300px;
    right: 10px;
    top: 10px;
  }
  
  .toast-stack-item {
    font-size: 0.9rem;
  }
}

/* Google Sign In Button Styles */
.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: white;
  color: #757575;
  border: 1px solid #dadce0;
  border-radius: 4px;
  padding: 10px 16px;
  font-family: 'Roboto', sans-serif;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  transition: background-color 0.2s, box-shadow 0.2s, border-color 0.2s;
  width: 220px;
  text-align: center;
}

.btn-google:hover {
  background-color: #fafafa;
  box-shadow: 0 2px 6px rgba(0,0,0,0.12);
  border-color: #c6c6c6;
  color: #555;
  text-decoration: none;
}

.btn-google:active {
  background-color: #f5f5f5;
  box-shadow: 0 1px 3px rgba(0,0,0,0.12);
}

.btn-google .google-icon {
  width: 18px;
  height: 18px;
  margin-right: 10px;
}

.social-login-container {
  padding-bottom: 15px;
  position: relative;
}

.social-login-container:before {
  content: '';
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 1px;
  background-color: #e5e5e5;
  z-index: 1;
}

.social-login-container p {
  background-color: white;
  display: inline-block;
  padding: 0 15px;
  position: relative;
  z-index: 2;
}

.idiom-text {
  font-size: 0.95em;
  line-height: 1.4;
  max-width: 500px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .idiom-text {
    font-size: 0.9em;
    max-width: 100%;
  }
}

.cell-idiom {
  max-width: 300px;
  white-space: normal;
  word-break: normal;
}

/* Add to My Words button styling - new design */
.add-to-mywords-container {
  margin-top: 0.75rem;
  margin-bottom: 0.75rem;
  transition: all 0.3s ease;
}

#add-to-mywords-btn {
  border-radius: 20px;
  padding: 0.4rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  border-width: 2px;
  transition: all 0.2s;
  box-shadow: 0 2px 4px rgba(23, 162, 184, 0.1);
}

#add-to-mywords-btn:hover {
  background-color: #17a2b8;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(23, 162, 184, 0.2);
}

#add-to-mywords-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(23, 162, 184, 0.1);
}

#add-to-mywords-btn i {
  font-size: 1rem;
}

#add-to-mywords-btn.success {
  background-color: #28a745;
  color: white;
  border-color: #28a745;
}

#add-to-mywords-btn.success i {
  animation: pulse 1.5s ease-in-out;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.5); }
  100% { transform: scale(1); }
}

/* Solución para menú compacto en una sola línea */
@media (min-width: 992px) {
  .navbar-nav .nav-link {
    padding: 0.4rem 0.5rem;
    font-size: 0.9rem;
    white-space: nowrap;
  }
  
  .navbar-brand {
    font-size: 1.25rem;
  }
  
  .navbar-brand img {
    width: 30px;
    height: 30px;
  }
  
  .navbar > .container {
    max-width: 100%;
    padding-left: 5px;
    padding-right: 5px;
  }
}

/* Ajuste específico para resoluciones entre 992px y 1200px */
@media (min-width: 992px) and (max-width: 1199.98px) {
  .navbar-nav .nav-link {
    padding: 0.3rem 0.35rem;
    font-size: 0.85rem;
  }
}