/* ============================================================
   TECNILUB · Base / Reset / Tipografía
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: auto; /* lo gestiona Lenis */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--text-on-dark);
  background: var(--ink);
  overflow-x: hidden;
  font-feature-settings: 'ss01', 'cv01';
}

/* Cuando Lenis está activo */
html.lenis,
html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }

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

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
ul { list-style: none; }

::selection {
  background: var(--accent);
  color: #101010;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---- Tipografía base ---- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 0.98;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

.display {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-display);
  line-height: 0.9;
  letter-spacing: -0.015em;
  text-transform: uppercase;
}

.h2 { font-size: var(--fs-h2); }
.h3 { font-size: var(--fs-h3); font-weight: 600; }

.lead {
  font-size: var(--fs-lead);
  line-height: 1.5;
  color: var(--text-on-dark-soft);
  font-weight: 400;
}

/* ---- Eyebrow / etiquetas monoespaciadas ---- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
}
.eyebrow--muted { color: var(--muted-on-dark); }
.eyebrow.on-light { color: var(--accent); }

.mono { font-family: var(--font-mono); }

/* ---- Acento en texto ---- */
.accent { color: var(--accent); }

/* ============================================================
   Layout helpers
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); position: relative; }
.section--dark { background: var(--ink); color: var(--text-on-dark); }
.section--ink1 { background: var(--ink-1); color: var(--text-on-dark); }
.section--light { background: var(--paper); color: var(--text-on-light); }

.grid { display: grid; gap: clamp(1rem, 2vw, 2rem); }

/* Cabecera de sección: eyebrow + título grande + intro a la derecha */
.section-head {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: end;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}
.section-head__intro {
  color: var(--muted-on-dark);
  font-size: var(--fs-lead);
  line-height: 1.5;
  max-width: 42ch;
}
.section--light .section-head__intro { color: var(--muted-on-light); }
@media (max-width: 820px) {
  .section-head { grid-template-columns: 1fr; align-items: start; }
}

/* ---- Grano / textura premium (overlay global) ---- */
.grain {
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  opacity: 0.04;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---- Utilidades de accesibilidad ---- */
.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;
}

/* ============================================================
   Motion: estados de revelado (base = oculto)
   El JS añade .is-in para reproducir. Sin JS / reduced motion
   todo queda visible (ver bloque final).
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
  will-change: opacity, transform;
}
[data-reveal].is-in { opacity: 1; transform: none; }

/* Máscara de líneas para títulos (split) */
.line-mask { display: block; overflow: hidden; }
.line-inner {
  display: block;
  transform: translateY(110%);
  transition: transform 1s var(--ease-out);
  will-change: transform;
}
.is-in .line-inner,
.line-mask.is-in .line-inner { transform: none; }

/* Revelado de imagen (clip) */
[data-img-reveal] { clip-path: inset(0 0 100% 0); transition: clip-path 1.1s var(--ease-out); }
[data-img-reveal].is-in { clip-path: inset(0 0 0% 0); }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  [data-reveal], .line-inner, [data-img-reveal] { opacity: 1 !important; transform: none !important; clip-path: none !important; }
  .grain { display: none; }
}