/* Estilo general */
:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --accent: #2b7cff;
  --muted: #6b7280;
  --radius: 12px;
  --maxw: 900px;
}

body {
  margin: 0;
  font-family: 'Inter', Arial, sans-serif;
  background: var(--bg);
  color: #0f172a;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1.8rem;
}

/* Header */
.site-header {
  text-align: center;
  padding: 2.5rem 1rem;
  background: linear-gradient(90deg, #e8f0ff, #f8fbff);
  border-bottom: 1px solid #dce3f5;
}
.tagline {
  color: var(--muted);
  margin-top: 0.4rem;
}

/* Navegación */
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}
.nav a {
  padding: 0.4rem 0.75rem;
  text-decoration: none;
  color: var(--accent);
  font-weight: 600;
  border-radius: 8px;
  transition: 0.2s;
}
.nav a:hover {
  background: #e9f1ff;
}

/* Tarjetas de contenido */
.card {
  background: var(--card);
  margin-top: 1.8rem;
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: 0 6px 18px rgba(0,0,0,0.07);
}
.card h2 {
  margin-top: 0;
  color: #1e2a45;
}

/* Imágenes */
.image-placeholder {
  margin-top: 1rem;
}
.image-placeholder img {
  width: 100%;
  max-width: 380px;
  border-radius: 10px;
  border: 1px solid #e0e6f0;
}
.img-caption {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.5rem;
}

/* Formulario */
.form {
  display: grid;
  gap: 0.8rem;
}
.form input, .form textarea, .form select {
  padding: 0.6rem;
  border-radius: 8px;
  border: 1px solid #cfd6e3;
  background: #fafcff;
}
.btn {
  background: var(--accent);
  color: white;
  padding: 0.7rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-weight: 600;
}
.btn:hover {
  opacity: 0.9;
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 2rem 0;
  color: var(--muted);
  margin-top: 2rem;
}