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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: #1e293b;
  background-color: #ffffff;
  -webkit-font-smoothing: antialiased;
}

img, video {
  max-width: 100%;
  display: block;
}

a {
  color: #2563eb;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.25rem;
}

h2 {
  font-size: 1.75rem;
}

h3 {
  font-size: 1.35rem;
}

h4 {
  font-size: 1.15rem;
}

p {
  margin-bottom: 1rem;
}

code {
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-size: 0.9em;
  background-color: #f8fafc;
  padding: 0.15em 0.35em;
  border-radius: 4px;
}

pre {
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-size: 0.9rem;
  background-color: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1rem;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
}
.modal-overlay--visible {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 2rem;
  width: min(90vw, 400px);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.modal__titulo {
  font-size: 1.1rem;
  font-weight: 700;
  color: #1e293b;
  margin: 0;
}
.modal__cuerpo {
  color: #64748b;
  font-size: 0.95rem;
  margin: 0;
}
.modal__acciones {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 0.25rem;
}
.modal__btn {
  padding: 0.5rem 1.5rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  font-family: inherit;
  transition: background-color 0.15s ease;
}
.modal__btn--ok {
  background-color: #2563eb;
  color: #fff;
}
.modal__btn--ok:hover {
  background-color: #1d4ed8;
}
.modal__btn--cancelar {
  background-color: transparent;
  color: #64748b;
  border: 1px solid #e2e8f0;
}
.modal__btn--cancelar:hover {
  background-color: #f8fafc;
}

.sitio-header {
  background-color: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.sitio-nav {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.sitio-nav__logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: #1e293b;
  text-decoration: none;
}
.sitio-nav__links {
  display: flex;
  gap: 1rem;
  flex: 1;
}
.sitio-nav__links a {
  color: #64748b;
  font-size: 0.95rem;
}
.sitio-nav__links a:hover {
  color: #2563eb;
  text-decoration: none;
}
.sitio-nav__auth {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: #64748b;
}
.sitio-nav__auth button {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: #2563eb;
  cursor: pointer;
}
.sitio-nav__auth button:hover {
  text-decoration: underline;
}

.sitio-main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  min-height: calc(100vh - 120px);
}

.sitio-footer {
  text-align: center;
  padding: 1.5rem;
  color: #64748b;
  font-size: 0.9rem;
  border-top: 1px solid #e2e8f0;
}

.btn {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: background-color 0.15s ease;
}
.btn--primario {
  background-color: #2563eb;
  color: #fff;
}
.btn--primario:hover {
  background-color: #1d4ed8;
  text-decoration: none;
}
.btn--secundario {
  background-color: #f8fafc;
  color: #1e293b;
  border: 1px solid #e2e8f0;
}
.btn--secundario:hover {
  background-color: #e2e8f0;
  text-decoration: none;
}

.portada__hero {
  text-align: center;
  padding: 3rem 0;
}
.portada__titulo {
  font-size: 3rem;
  margin-bottom: 1rem;
}
.portada__bajada {
  font-size: 1.2rem;
  color: #64748b;
  max-width: 600px;
  margin: 0 auto 2rem;
}
.portada__acciones {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}
.portada__secciones {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}
.portada__tarjeta {
  padding: 2rem;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}
.portada__tarjeta i {
  font-size: 2rem;
  color: #2563eb;
  margin-bottom: 1rem;
}
.portada__tarjeta h2 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}
.portada__tarjeta p {
  color: #64748b;
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.formulario {
  max-width: 600px;
}
.formulario__campo {
  margin-bottom: 1.5rem;
}
.formulario__campo label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.formulario__campo input, .formulario__campo textarea {
  width: 100%;
  padding: 0.5rem 1rem;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  background-color: #ffffff;
}
.formulario__campo input:focus, .formulario__campo textarea:focus {
  outline: 2px solid #2563eb;
  outline-offset: 1px;
}

.mensajes {
  margin-bottom: 1.5rem;
}
.mensajes__item {
  padding: 0.5rem 1rem;
  border-radius: 8px;
  margin-bottom: 0.5rem;
}
.mensajes__item--success {
  background-color: #dcfce7;
  color: #166534;
}
.mensajes__item--error {
  background-color: #fee2e2;
  color: #991b1b;
}
.mensajes__item--warning {
  background-color: #fef3c7;
  color: #92400e;
}
.mensajes__item--info {
  background-color: #dbeafe;
  color: #1e40af;
}