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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f8f9fa;
  color: #212529;
}

header {
  background-color: #1d1d1d;
  padding: 1rem 0;
}
header h1 {
  font-size: 2rem;
  text-align: center;
}
header .site-title-wrapper span {
  font-weight: bold;
  font-size: 1.4rem;
  margin-left: 0.25rem;
}
header .nav .nav-link {
  color: #bbb;
  transition: color 0.3s ease;
}
header .nav .nav-link:hover {
  color: #ffc107;
}

section {
  background-color: white;
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
}

h2.display-4 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #343a40;
}

p.lead {
  font-size: 1.1rem;
  line-height: 1.6;
}

p.romanization {
  font-style: italic;
  font-size: 0.95rem;
  color: #6c757d;
  margin-top: 0.5rem;
  text-align: center;
}

.explanation-text {
  font-size: 1rem;
  color: #444;
}

footer {
  background-color: #1d1d1d;
  color: white;
}
footer .footer-social-icon {
  filter: grayscale(100%);
  transition: filter 0.3s ease, transform 0.3s ease;
}
footer .footer-social-icon:hover {
  filter: grayscale(0%);
  transform: scale(1.1);
}

.hanzi {
  color: #d63384;
}

.hangul {
  color: #0d6efd;
}

.japanese {
  color: #20c997;
}

.idioma-chino {
  font-weight: bold;
  color: #c82333;
}

.idioma-coreano {
  font-weight: bold;
  color: #007bff;
}

.idioma-japones {
  font-weight: bold;
  color: #28a745;
}

@media (max-width: 768px) {
  header h1 {
    font-size: 1.25rem;
  }
  .display-4 {
    font-size: 1rem;
  }
}
.sticky-footer {
  position: sticky;
  top: 100vh;
  transform: translateY(-100%);
}

.ratio iframe {
  width: 100% !important;
  height: auto !important;
}

.introduction-section .intro-text-container {
  transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
}
.introduction-section .intro-text-container:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.tian-zi-ge-square {
  position: relative;
  width: 100px;
  height: 100px;
  border: 1px solid #ddd;
  margin: 5px;
}
.tian-zi-ge-square::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100"><line x1="0" y1="0" x2="100" y2="100" stroke="%23DDD" /><line x1="100" y1="0" x2="0" y2="100" stroke="%23DDD" /><line x1="50" y1="0" x2="50" y2="100" stroke="%23DDD" /><line x1="0" y1="50" x2="100" y2="50" stroke="%23DDD" /></svg>');
  background-size: contain;
  z-index: 0;
  opacity: 0.5;
}

/*# sourceMappingURL=style.css.map */