:root {
  --bg-primary: #0B0E11;
  --bg-secondary: #1E2329;
  --bg-tertiary: #2B3139;
  --bg-card: #1E2329;
  --border-color: #2B3139;
  --text-primary: #EAECEF;
  --text-secondary: #B7BDC6;
  --text-muted: #848E9C;
  --accent-yellow: #F0B90B; /* Binance Yellow */
  --accent-green: #02C076; /* Binance Green */
  --accent-red: #F6465D; /* Binance Red */
  --accent-blue: #1890FF;
  --hover-bg: #2B3139;
  --input-bg: #2B3139;
  --gradient-gold: linear-gradient(135deg, #F0B90B 0%, #F8D12F 100%);

  /* Colores para las cajas de información (adaptados al tema oscuro) */
  --highlight-bg: rgba(240, 185, 11, 0.1); /* Amarillo tenue */
  --highlight-border: #F0B90B;
  --warning-bg: rgba(246, 70, 93, 0.1); /* Rojo tenue */
  --warning-border: #F6465D;
  --success-bg: rgba(2, 192, 118, 0.1); /* Verde tenue */
  --success-border: #02C076;
}

body {
  font-family: 'Inter', sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.header {
  background-color: var(--bg-secondary);
  padding: 15px 0;
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.header-content {
  display: flex;
  flex-direction: column; /* Cambiado a columna para móviles */
  align-items: center;
  gap: 15px; /* Espacio entre logo y nav */
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-icon {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 700;
  font-size: 28px;
  line-height: 1;
}

.logo-text {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
}

.nav-tabs {
  display: flex;
  flex-wrap: wrap; /* Permitir que los tabs se envuelvan */
  justify-content: center; /* Centrar los tabs */
  gap: 10px;
}

.nav-tab {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
  white-space: nowrap; /* Evitar salto de línea en el texto del botón */
}

.nav-tab:hover {
  background-color: var(--hover-bg);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.nav-tab.active {
  background: var(--gradient-gold);
  color: var(--bg-primary); /* Texto oscuro sobre fondo claro de gradiente */
  box-shadow: 0 4px 8px rgba(240, 185, 11, 0.3);
  font-weight: 600;
}

/* Main Content */
.main-content {
  padding: 30px 0;
}

.fade-in {
  animation: fadeIn 0.5s ease-out forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.calculator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  padding: 0 10px; /* Pequeño padding para los bordes */
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  /* Floating effect */
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px); /* Lift card */
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4); /* Enhanced shadow */
}


.card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.card-icon {
  background: var(--gradient-gold);
  color: var(--bg-primary);
  width: 45px;
  height: 45px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 24px;
  font-weight: 700;
}

.card-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
}

.form-input, .form-select {
  width: 100%;
  padding: 12px 15px;
  background-color: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  box-sizing: border-box; /* Asegura que el padding no aumente el ancho total */
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-input:focus, .form-select:focus {
  border-color: var(--accent-yellow);
  box-shadow: 0 0 0 3px rgba(240, 185, 11, 0.2);
  outline: none;
}

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

.mt-2 {
  margin-top: 8px;
}

.btn {
  display: block;
  width: 100%;
  padding: 14px 20px;
  background: var(--gradient-gold);
  color: var(--bg-primary);
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.3s ease, transform 0.2s ease;
  margin-top: 20px;
  box-shadow: 0 4px 10px rgba(240, 185, 11, 0.4);
}

.btn:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

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

.result-section {
  margin-top: 25px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

.result-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 15px;
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(var(--border-color), 0.5);
}

.result-item:last-child {
  border-bottom: none;
}

.result-label {
  color: var(--text-secondary);
  font-size: 14px;
}

.result-value {
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 600;
}

.result-value.negative {
  color: var(--accent-red);
}

.result-value.positive {
  color: var(--accent-green);
}

/* Info Box */
.info-box {
  padding: 15px;
  border-radius: 8px;
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.5;
}

.info-box p {
  margin: 0 0 8px 0;
  color: var(--text-primary);
}

.info-box ul {
    margin: 10px 0 0 20px;
    padding: 0;
    list-style: disc;
    color: var(--text-secondary);
}

.info-box ul li {
    margin-bottom: 5px;
}

.info-box strong {
    color: var(--text-primary);
}


.info-box.highlight {
  background-color: var(--highlight-bg);
  border: 1px solid var(--highlight-border);
}

.info-box.warning {
  background-color: var(--warning-bg);
  border: 1px solid var(--warning-border);
}

.info-box.success {
  background-color: var(--success-bg);
  border: 1px solid var(--success-border);
}

/* P2Pedia Styles */
.p2pedia-content-wrapper {
  display: flex;
  flex-direction: column; /* Por defecto en columna para móviles */
  gap: 25px;
  padding: 0 10px;
}

.p2pedia-sidebar {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.p2pedia-sidebar-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 0;
  margin-bottom: 15px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.p2pedia-sidebar-nav {
  list-style: none;
  padding: 0;
  margin: 0;
}

.p2pedia-nav-item {
  padding: 12px 10px;
  color: var(--text-secondary);
  font-size: 15px;
  cursor: pointer;
  transition: background-color 0.3s ease, color 0.3s ease;
  border-radius: 6px;
  margin-bottom: 5px;
}

.p2pedia-nav-item:hover {
  background-color: var(--hover-bg);
  color: var(--text-primary);
}

.p2pedia-nav-item.active-p2pedia-nav {
  background-color: var(--accent-yellow);
  color: var(--bg-primary);
  font-weight: 600;
}

.p2pedia-main-content {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.p2pedia-article-content h2 {
  font-size: 22px;
  color: var(--text-primary);
  margin-top: 0;
  margin-bottom: 15px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 10px;
}

.p2pedia-article-content h3 {
  font-size: 18px;
  color: var(--accent-yellow);
  margin-top: 25px;
  margin-bottom: 10px;
}

.p2pedia-article-content p {
  color: var(--text-secondary);
  margin-bottom: 15px;
}

.p2pedia-article-content ul,
.p2pedia-article-content ol {
  color: var(--text-secondary);
  margin: 15px 0 15px 20px;
  padding: 0;
}

.p2pedia-article-content ul li,
.p2pedia-article-content ol li {
  margin-bottom: 8px;
}

.p2pedia-article-content a {
  color: var(--accent-yellow);
  text-decoration: none;
  transition: color 0.3s ease;
}

.p2pedia-article-content a:hover {
  color: #f8d12f;
  text-decoration: underline;
}

/* FAQ Section */
.faq-section {
  padding: 0 10px;
}

.faq-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 30px;
}

.faq-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  margin-bottom: 15px;
  overflow: hidden; /* Ocultar el contenido inicialmente */
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  background-color: var(--bg-tertiary);
  transition: background-color 0.3s ease;
}

.faq-question:hover {
  background-color: var(--hover-bg);
}

.faq-question::after {
  content: '+';
  font-size: 24px;
  transition: transform 0.3s ease;
  color: var(--accent-yellow);
}

.faq-item.active .faq-question::after {
  content: '-';
  transform: rotate(0deg); /* No necesitamos rotar, solo cambiar el signo */
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease-out; /* Transición para el despliegue */
  padding: 0 20px; /* Padding para el contenido cuando visible */
}

.faq-item.active .faq-answer {
  max-height: 500px; /* Suficientemente grande para el contenido */
  padding: 15px 20px 20px; /* Ajustar padding al abrir */
}

.faq-answer p {
  color: var(--text-secondary);
  margin-top: 0;
  margin-bottom: 10px;
  font-size: 14px;
}

.faq-answer ul {
  color: var(--text-secondary);
  margin: 10px 0 10px 20px;
  padding: 0;
  list-style: disc;
}
.faq-answer ul li {
    margin-bottom: 5px;
}


.contact-info {
  margin-top: 30px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 10px;
  font-size: 15px;
}

.contact-info a {
  color: var(--accent-yellow);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.contact-info a:hover {
  color: #f8d12f;
  text-decoration: underline;
}

/* Custom styles for privacy-policy-section */
.privacy-policy-section {
    padding: 0 10px; /* Consistent with other sections */
}

.privacy-policy-section .card-body {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
}

.privacy-policy-section h3 {
    color: var(--accent-yellow);
    font-size: 18px;
    margin-top: 25px;
    margin-bottom: 10px;
}

.privacy-policy-section ul {
    margin: 15px 0 15px 20px;
    padding: 0;
    list-style: disc;
    color: var(--text-secondary);
}

.privacy-policy-section ul li {
    margin-bottom: 8px;
}

/* Responsiveness */
@media (min-width: 768px) {
  .header-content {
    flex-direction: row; /* Volver a fila para pantallas más grandes */
    justify-content: space-between;
  }

  .nav-tabs {
    justify-content: flex-end; /* Alinear a la derecha */
    gap: 15px;
  }
  .nav-tab {
    padding: 12px 25px;
    font-size: 15px;
  }
  .calculator-grid {
    padding: 0 20px;
  }
  .card {
    padding: 30px;
  }
  .card-title {
    font-size: 22px;
  }
  .form-label {
    font-size: 15px;
  }
  .form-input, .form-select {
    padding: 14px 18px;
    font-size: 15px;
  }
  .btn {
    font-size: 17px;
    padding: 16px 25px;
  }
  .result-title {
    font-size: 19px;
  }
  .result-label {
    font-size: 15px;
  }
  .result-value {
    font-size: 17px;
  }
  .p2pedia-content-wrapper {
    flex-direction: row; /* Side-by-side para pantallas más grandes */
    padding: 0 20px;
  }
  .p2pedia-sidebar {
    flex: 0 0 280px; /* Ancho fijo para la barra lateral */
    min-width: 250px;
    padding: 25px;
  }
  .p2pedia-main-content {
    flex-grow: 1;
    padding: 30px;
  }
  .p2pedia-article-content h2 {
    font-size: 24px;
  }
  .p2pedia-article-content h3 {
    font-size: 20px;
  }
  .p2pedia-article-content p {
    font-size: 15px;
  }
  .faq-section {
    padding: 0 20px;
  }
  .faq-question {
    font-size: 17px;
    padding: 20px 25px;
  }
  .faq-answer {
    max-height: 0; /* Ensures initial hiding */
    padding: 0 25px;
  }
  .faq-item.active .faq-answer {
    padding: 18px 25px 25px;
  }
  .faq-answer p {
    font-size: 15px;
  }
  .contact-info {
    padding: 25px;
  }
  .contact-info p {
    font-size: 16px;
  }
    .privacy-policy-section {
        padding: 0 20px; /* Consistent with other sections */
    }
    .privacy-policy-section .card-body {
        font-size: 16px;
    }
    .privacy-policy-section h3 {
        font-size: 20px;
    }
}

/* Scrollbar personalizado para navegadores basados en WebKit (Chrome, Safari) */
::-webkit-scrollbar {
  width: 8px;
  height: 8px; /* Para scrollbars horizontales si los hay */
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary); /* Fondo de la barra de desplazamiento */
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: var(--text-muted); /* Color del "pulgar" de la barra de desplazamiento */
  border-radius: 10px;
  transition: background 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary); /* Color al pasar el ratón por encima */
}

/* Firefox */
* {
  scrollbar-width: thin; /* "auto" o "none" */
  scrollbar-color: var(--text-muted) var(--bg-secondary); /* thumb y track */
}

/* Añadir un margen al final del main para asegurar que el contenido no quede pegado al footer si este existe o es muy corto */
main.main-content {
    padding-bottom: 50px;
}