:root {  /* elemento raíz del documento */
  --pincipal_fondo: #0a0e1a;
  --fd_dos: #1a1f2e;
  --fd_acento: #2d3548;

  --az_electri: #00d4ff;

  --text_uno: #ffffff;
  --text_dos: #b8c5d6;

  --brd_color: #3a4556;

  --spciad_sm: 1rem;
  --spciad_lg: 2rem;
  --spciad_xl: 3rem;

  --bdr_rdo: 12px;
  --bdr_rdo-small: 8px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  scrollbar-width: thin; /* scroll delgado */
  scrollbar-color: var(--az_electri) var(--fd_dos); /* Colores del scroll */
}

body {
  font-family: "Segoe UI", sans-serif;
  background: linear-gradient(135deg, var(--pincipal_fondo), var(--fd_dos));
  color: var(--text_uno);
  min-height: 100vh;
}

.visually-hidden {
  position: absolute; /* sale del lugar */
  width: 1px;
  height: 1px;
  overflow: hidden; /* Oculta contenido */
}

.header {
  background: var(--fd_dos);
  border-bottom: 2px solid var(--brd_color);
  padding: var(--spciad_sm) var(--spciad_lg);
  position: sticky;
  top: 0;
  z-index: 1000; /* Encima de otros elementos */
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-icon {
  width: 48px;
  height: 48px;
}

.content {
  padding: 2rem;
  max-width: 1200px;
  margin: auto;
}

.welcome-section {
  text-align: center;
  padding: var(--spciad_xl);
  background: var(--fd_dos);
  border-radius: var(--bdr_rdo);
}

.welcome-section h1 {
  font-size: 2.5rem;
  color: var(--az_electri);
}

.welcome-section p {
  color: var(--text_dos);
}

.total-counter {
  margin: 2rem 0;
  padding: 2rem;
  border: 2px solid var(--az_electri);
  border-radius: var(--bdr_rdo);
}

.language-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.language-card {
  background: var(--fd_dos);
  border: 1px solid var(--brd_color);
  border-radius: var(--bdr_rdo);
  padding: 2rem;
  text-align: center;
  text-decoration: none;
  color: inherit;
  position: relative;
  transition: 0.3s;
}

.language-card:hover {
  transform: translateY(-5px);
  border-color: var(--az_electri);
}

.language-icon {
  font-size: 3rem;
  color: var(--az_electri);
}

.language-count {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--az_electri);
  color: var(--pincipal_fondo);
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 0.8rem;
}
.site-footer {
  margin-top: 4rem;
  padding: 2rem;
  text-align: center;
  border-top: 1px solid var(--brd_color);
  background: var(--fd_dos);
}

.footer-links a {
  color: var(--text_dos);
  margin: 0 1rem;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--az_electri);
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-thumb {
  background: var(--az_electri);
  border-radius: 4px;
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 1rem;
  }

  .language-grid {
    grid-template-columns: 1fr;
  }
}
@media (prefers-color-scheme: dark) {
  :root {
    --pincipal_fondo: #000000;
    --fd_dos: #111111;
    --fd_acento: #222222;
  }
}