/* ------------------------------------------------------------------
   components · nav, botões, links, hairlines
   ------------------------------------------------------------------ */

/* — nav — */
.nav {
  position: fixed; inset: 0 0 auto 0;
  z-index: var(--z-nav);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: clamp(1rem, 2vw, 1.6rem) var(--margin);
  color: var(--ink);
  transition: transform var(--m-med) var(--ease-editorial), color var(--m-med) var(--ease-standard);
  will-change: transform;
}
.nav.is-hidden { transform: translateY(-110%); }
.nav.is-dark { color: var(--porcelain); }

.nav__brand { display: inline-flex; align-items: center; gap: .7rem; justify-self: start; }
.nav__mark {
  width: 6px; height: 22px;
  background: currentColor;
  transition: height var(--m-med) var(--ease-editorial);
}
.nav__brand:hover .nav__mark { height: 28px; }
.nav__name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.15rem;
  letter-spacing: .02em;
  font-variation-settings: "opsz" 24, "SOFT" 60;
}
.nav__links { display: flex; gap: clamp(1.25rem, 2.4vw, 2.6rem); font-size: var(--fs-small); }
.nav__cta { justify-self: end; }

@media (max-width: 767px) {
  .nav { grid-template-columns: 1fr auto; }
  .nav__links { display: none; }
}

/* — link com sublinhado animado — */
.link {
  position: relative;
  display: inline-block;
  padding-bottom: .1em;
}
.link::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: right;
  transition: transform var(--m-med) var(--ease-editorial);
}
.link:hover::after, .link:focus-visible::after { transform: scaleX(1); transform-origin: left; }

.link--arrow {
  display: inline-flex; align-items: center; gap: .6em;
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: .02em;
}
.link--arrow span { display: inline-block; transition: transform var(--m-med) var(--ease-editorial); }
.link--arrow:hover span { transform: translateX(.4em); }

/* — botão: texto que desliza internamente — */
.btn {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px;
  padding: .85rem 1.6rem;
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: .04em;
  border: 1px solid currentColor;
  overflow: hidden;
  transition: color var(--m-fast) var(--ease-standard), background-color var(--m-fast) var(--ease-standard), border-color var(--m-fast) var(--ease-standard);
}
.btn__label { position: relative; display: block; overflow: hidden; line-height: 1.2; }
.btn__text { display: block; transition: transform var(--m-med) var(--ease-editorial); }
.btn__text--dup { position: absolute; inset: 0; transform: translateY(110%); }
.btn:hover .btn__text, .btn:focus-visible .btn__text { transform: translateY(-110%); }
.btn:hover .btn__text--dup, .btn:focus-visible .btn__text--dup { transform: translateY(0); }

.btn--ghost { padding: .6rem 1.1rem; min-height: 40px; }
.btn--ghost:hover { background: var(--fg); color: var(--bg); }

.btn--solid { background: var(--porcelain); color: var(--night); border-color: var(--porcelain); padding: 1.1rem 2.2rem; }
.btn--solid:hover { background: var(--nude); border-color: var(--nude); }

.btn--magnetic { will-change: transform; }

/* — hairline — */
.hair { border: 0; border-top: 1px solid var(--hair); }