/* Reset ligero + fundamentos tipográficos */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-black);
  font-family: var(--font-body);
  font-size: var(--fs-body-md);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  margin: 0;
  font-weight: 500;
  letter-spacing: var(--ls-normal);
}

p { margin: 0; }

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

ul { margin: 0; padding: 0; list-style: none; }

fieldset { border: 0; margin: 0; padding: 0; }
legend { padding: 0; }

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

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-gold);
  font-weight: 500;
}

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

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 2rem;
  font-family: var(--font-body);
  font-size: var(--fs-body-sm);
  font-weight: 600;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: transform var(--dur-fast) var(--ease-elegant),
              background-color var(--dur-fast) var(--ease-elegant),
              color var(--dur-fast) var(--ease-elegant),
              border-color var(--dur-fast) var(--ease-elegant);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-gold);
  color: var(--color-black);
}
.btn-primary:hover {
  background: var(--color-gold-light);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0) scale(0.97); }

.btn-ghost {
  background: transparent;
  color: var(--color-white);
  border: 1px solid var(--color-white-a12);
}
.btn-ghost:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

/* Scroll reveal (progressive enhancement vía IntersectionObserver, ver main.js) */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-reveal) var(--ease-elegant),
              transform var(--dur-reveal) var(--ease-elegant);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
/* Sin JS: mostrar todo igualmente */
.no-js [data-reveal] {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    transition: none;
    opacity: 1;
    transform: none;
  }
  html { scroll-behavior: auto; }
}