/* ==========================================================================
   MSL SERVICIOS — BASE
   Reset, tipografía base y primitivas de layout.
   Depende de: tokens.css (Paso 02). Consumir solo variables, no valores crudos.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. RESET
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

ul[class],
ol[class] {
  list-style: none;
  padding: 0;
}

/* --------------------------------------------------------------------------
   2. TIPOGRAFÍA BASE (mapeo de etiquetas a la escala del sistema)
   -------------------------------------------------------------------------- */
h1 {
  font-size: var(--font-size-h1);
  line-height: var(--line-height-h1);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: var(--tracking-snug);
}

h2 {
  font-size: var(--font-size-h2);
  line-height: var(--line-height-h2);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: var(--tracking-snug);
}

h3 {
  font-size: var(--font-size-h3);
  line-height: var(--line-height-h3);
  font-weight: var(--font-weight-bold);
}

.display {
  font-size: var(--font-size-display);
  line-height: var(--line-height-display);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: var(--tracking-tight);
}

.lead {
  font-size: var(--font-size-body-l);
  color: var(--color-text-secondary);
}

.caption {
  font-size: var(--font-size-caption);
  line-height: var(--line-height-caption);
  color: var(--color-text-caption);
}

a {
  color: var(--color-accent-600);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--color-accent-700);
}

:focus-visible {
  outline: var(--focus-outline-width) solid var(--focus-outline-color);
  outline-offset: var(--focus-outline-offset);
}

::selection {
  background-color: var(--color-primary-100);
  color: var(--color-primary-900);
}

/* --------------------------------------------------------------------------
   3. PRIMITIVAS DE LAYOUT
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.section {
  padding-block: var(--section-padding-y);
}

.section--surface {
  background-color: var(--color-surface);
}

.section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--block-gap);
}

.section-header__action {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary-600);
  text-decoration: none;
}

.section-header__action:hover {
  color: var(--color-primary-700);
}

.section-header__action .lucide {
  width: 16px;
  height: 16px;
}

/* --------------------------------------------------------------------------
   4. UTILIDADES
   -------------------------------------------------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  z-index: var(--z-modal);
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-primary-600);
  color: var(--color-text-inverse);
  border-radius: var(--radius-md);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  transform: translateY(calc(-100% - var(--space-4)));
}

.skip-link:focus {
  transform: none;
}

/* Placeholder neutro para futuros medios (fotos, logos).
   Deja visible la caja y el ratio sin cargar imágenes reales. */
.media-placeholder {
  display: grid;
  place-items: center;
  align-content: center;
  gap: var(--space-2);
  width: 100%;
  height: 100%;
  padding: var(--space-4);
  background-color: var(--color-surface);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  color: var(--color-text-caption);
  font-size: var(--font-size-small);
  text-align: center;
}