/* Soporte adicional para bg-clip-text */
.bg-clip-text {
  -webkit-background-clip: text;
  background-clip: text;
}

html {
  scroll-behavior: smooth;
}

body {
  -webkit-font-smoothing: antialiased;
  background-color: #1a202c;
  color: #e2e8f0;
}

.btn-primary {
  background-color: #2563eb;
  color: white;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  transition: background-color 0.2s;
}

.btn-primary:hover {
  background-color: #1d4ed8;
}

.btn-secondary {
  background-color: #e5e7eb;
  color: #1f2937;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  transition: background-color 0.2s;
}

.btn-secondary:hover {
  background-color: #d1d5db;
}

.section-full {
  min-height: 100vh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

/* Links navbar */
.nav-link {
  color: #374151;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-link:hover {
  color: #2563eb;
}

.nav-link-active {
  color: #2563eb;
  font-weight: 600;
}

/* Ajustes responsivos */
.container {
  max-width: 100%;
  padding: 1rem;
}

@media (min-width: 768px) {
  .container {
    max-width: 750px;
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 960px;
  }
}

/* Estilos responsivos para formato celular */
@media (max-width: 768px) {
  #professor-avatar {
    width: 80px;
    height: auto;
    position: relative;
    margin: 0 auto;
  }

  #chat-modal {
    width: 90%;
    bottom: 10px;
    left: 5%;
    transform: translateX(0);
  }
}

/* Estilos para el cuadro grande (pizarra) */
#whiteboard-content {
  background-color: #2c3e50;
  color: #ecf0f1;
  font-family: 'Chalkboard', sans-serif;
  border: 5px solid #8e44ad;
  border-radius: 15px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
  padding: 20px;
  overflow-y: auto;
  max-height: 400px;
}

#whiteboard-content div {
  margin-bottom: 10px;
}

#whiteboard-content {
  background-image: url('https://www.transparenttextures.com/patterns/black-linen.png');
  background-size: cover;
}

/* Clase específica para el título gradiente */
.gradient-knowledge {
  background: linear-gradient(to right, #60a5fa, #a855f7);
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
  color: transparent !important;
  display: inline-block;
}