/**
 * base.css — Reset + fundamentos tipográficos + utilidades
 */

*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: auto;
  background: var(--bg-base);
}

body {
  margin: 0;
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  cursor: none; /* reemplazado por cursor personalizado en desktop */
}

@media (max-width: 860px) {
  body { cursor: auto; }
  .cursor { display: none !important; }
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 500; margin: 0; letter-spacing: -0.01em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

::selection { background: var(--c-terracota); color: var(--c-beige-claro); }

.container {
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-mostaza);
  font-weight: 600;
}
.eyebrow::before {
  content: '';
  width: 26px;
  height: 1px;
  background: currentColor;
}
.eyebrow--light { color: var(--c-terracota); }

em { font-style: italic; color: var(--c-terracota); font-family: var(--font-display); }

/* ---- Botones ---- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 1.9rem;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease-out), background var(--dur-fast), color var(--dur-fast), border-color var(--dur-fast);
}
/* :hover no dispara en touch — reservar la capa de composición solo para
   donde el hover realmente anima (desktop). */
@media (min-width: 861px) {
  .btn { will-change: transform; }
}
.btn svg { transition: transform var(--dur-fast) var(--ease-out); }
.btn:hover svg { transform: translateX(4px); }

.btn--terracota {
  background: var(--c-terracota);
  color: var(--c-beige-claro);
}
.btn--terracota:hover { background: #a94814; }

.btn--ghost {
  border-color: var(--border-hairline);
  color: var(--text-primary);
  background: transparent;
}
.btn--ghost:hover { border-color: var(--c-marfil); background: #ffffff0d; }

.btn--lg { padding: 1.15rem 2.4rem; font-size: 1rem; }

.section { padding-block: var(--section-pad-y); position: relative; scroll-margin-top: 100px; }
.section--light { background: var(--bg-light); color: var(--text-primary-on-light); }
.section--light em { color: var(--c-terracota); }

/* Anillos de crecimiento — segundo motivo recurrente de Albura */
.rings-accent {
  position: absolute;
  width: clamp(220px, 26vw, 380px);
  height: auto;
  color: var(--c-mostaza);
  opacity: 0.055;
  pointer-events: none;
  z-index: 0;
}
.rings-accent circle { fill: none; stroke: currentColor; stroke-width: 0.6; }
.rings-accent--br { bottom: -14%; right: -10%; }
.rings-accent--tl { top: -14%; left: -10%; }
.rings-accent--bc { bottom: -30%; left: 50%; transform: translateX(-50%); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

/* Oculta elemento en pantallas chicas (mobile/tablet), visible solo en desktop */
@media (max-width: 1024px) {
  .hide-mobile { display: none !important; }
}

/* Scroll reveal base state (activado por reveal.js con IntersectionObserver) */
.reveal-up { opacity: 0; transform: translateY(48px); transition: opacity 1s var(--ease-out), transform 1s var(--ease-out); }
.reveal-up.is-visible { opacity: 1; transform: translateY(0); }

.reveal-lines { overflow: hidden; }