/* ==========================================================================
   fortizb · base.css
   Reset, tipografía, contenedores, utilidades y accesibilidad de base.
   ========================================================================== */

/* --- Reset --------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100dvh;
  background-color: var(--surface-0);
  color: var(--text-body);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

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

button {
  cursor: pointer;
  background: none;
  border: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

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

h1,
h2,
h3,
h4 {
  color: var(--text-primary);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-snug);
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

::selection {
  background: rgba(166, 166, 166, 0.28);
  color: var(--c-white);
}

/* --- Foco visible y accesible ------------------------------------------- */
:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

.skip-link {
  position: absolute;
  top: var(--sp-3);
  left: var(--sp-3);
  z-index: 200;
  padding: 0.7rem 1.15rem;
  background: var(--c-white);
  color: var(--text-inverse);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  border-radius: var(--r-md);
  transform: translateY(-180%);
  transition: transform var(--dur) var(--ease);
}

.skip-link:focus-visible {
  transform: translateY(0);
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* --- Estructura de página ------------------------------------------------ */
.container {
  width: min(100% - (var(--gutter) * 2), var(--container));
  margin-inline: auto;
}

.container--narrow {
  width: min(100% - (var(--gutter) * 2), var(--container-narrow));
}

.section {
  position: relative;
  padding-block: var(--section-py);
  scroll-margin-top: calc(var(--header-h) + 12px);
}

.section + .section {
  border-top: 1px solid var(--line);
}

/* --- Encabezados de sección --------------------------------------------- */
.section-head {
  max-width: 46rem;
  margin-bottom: clamp(2.75rem, 2rem + 3vw, 4.5rem);
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.section-head__title {
  font-size: var(--fs-h2);
  letter-spacing: var(--ls-tight);
  line-height: var(--lh-tight);
}

.section-head__subtitle {
  margin-top: var(--sp-4);
  font-size: var(--fs-lead);
  color: var(--text-body);
}

/* --- Eyebrow: etiqueta técnica monoespaciada ---------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-5);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--line-strong);
}

.section-head--center .eyebrow::after {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--line-strong);
}

/* --- Texto de apoyo ----------------------------------------------------- */
.lead {
  font-size: var(--fs-lead);
  color: var(--text-body);
}

.muted {
  color: var(--text-muted);
}

.mono {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
}

/* --- Iconos ------------------------------------------------------------- */
.icon {
  width: 1.25em;
  height: 1.25em;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* --- Animación de aparición al hacer scroll ----------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* --- Movimiento reducido ------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}