/* 279studio — base: reset, tipografía, layout, accesibilidad */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: auto; }
html.lenis { height: auto; }
html.lenis.lenis-smooth { scroll-behavior: auto; }

body {
  background: var(--negro);
  color: var(--gris-text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  cursor: none;
}
@media (max-width: 768px), (hover: none) and (pointer: coarse) {
  body { cursor: auto; }
}

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, ol { list-style: none; }
input, textarea, select { font: inherit; color: inherit; background: none; border: none; }

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.6rem, 6vw, 5.5rem); }
h2 { font-size: clamp(2rem, 4.2vw, 3.4rem); }
h3 { font-size: clamp(1.4rem, 2.4vw, 1.9rem); }
em, .serif-italic { font-family: var(--serif); font-style: italic; font-weight: 500; color: var(--acento-vivo); }

p { max-width: 62ch; }
.eyebrow, .label {
  font-family: var(--label);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  color: var(--acento-vivo);
}

.container { max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(4.5rem, 10vw, 8.5rem); position: relative; }
.section--osc { background: var(--gris-osc); }
.section--negro { background: var(--negro); }

.grid-12 { display: grid; grid-template-columns: repeat(12, 1fr); gap: clamp(1rem, 2vw, 1.75rem); }
@media (max-width: 860px) { .grid-12 { grid-template-columns: repeat(4, 1fr); } }

/* Foco de teclado — no negociable, siempre visible */
a:focus-visible, button:focus-visible, input:focus-visible,
textarea:focus-visible, select:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--acento-vivo);
  outline-offset: 3px;
  border-radius: var(--radius-s);
}
:focus:not(:focus-visible) { outline: none; }

.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: fixed; top: -100px; left: 1rem; z-index: 9999;
  background: var(--hueso); color: var(--negro); padding: 0.75rem 1.25rem;
  border-radius: var(--radius-s); transition: top var(--dur-fast) var(--ease-out);
}
.skip-link:focus { top: 1rem; }

/* Reveal por línea enmascarada — oculto solo si hay JS para revelarlo */
.reveal-lines { overflow: hidden; display: block; }
.no-js .reveal-lines .line { transform: none; }
.js .reveal-lines .line { display: block; transform: translateY(110%); }
.js .reveal-lines.is-revealed .line { transform: translateY(0); transition: transform var(--dur-slow) var(--ease-out); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  .reveal-lines .line { transform: none !important; }
}

body.i18n-fade [data-i18n], body.i18n-fade [data-i18n-html] { opacity: 0; transition: opacity 0.15s var(--ease-out); }

::selection { background: var(--acento-vivo); color: var(--negro); }

/* Scrollbar discreta */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--negro); }
::-webkit-scrollbar-thumb { background: var(--acento); border-radius: 10px; }