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

/* — 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, 1.5rem) var(--margin);
  color: var(--coal);
  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-light { color: var(--coal); }
.nav.is-dark { color: var(--bone); }

.nav__brand { display: inline-flex; align-items: baseline; gap: .6rem; justify-self: start; }
.nav__name {
  font-family: var(--font-display); font-weight: 700;
  font-variation-settings: "wdth" 80;
  text-transform: uppercase; letter-spacing: .04em; font-size: 1rem;
}
.nav__since { font-family: var(--font-text); font-style: italic; font-size: .95rem; opacity: .7; }
.nav__links { display: flex; gap: clamp(1.25rem, 2.4vw, 2.6rem); }
.nav__links a { font-family: var(--font-display); font-size: var(--fs-micro); font-weight: 600; letter-spacing: .14em; text-transform: uppercase; font-variation-settings: "wdth" 110; }
.nav__cta { justify-self: end; }

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

/* — link com sublinhado que corre — */
.link { position: relative; display: inline-block; padding-bottom: .12em; }
.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: .7em;
  font-family: var(--font-display); font-size: var(--fs-micro); font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase; font-variation-settings: "wdth" 110;
}
.link--arrow span { display: inline-block; transition: transform var(--m-med) var(--ease-editorial); }
.link--arrow:hover span { transform: translateX(.5em); }

/* — botão: bloco sólido, canto vivo, seta que entra — */
.btn {
  position: relative; display: inline-flex; align-items: center; gap: 1.2rem;
  min-height: 48px; padding: 1rem 1.5rem 1rem 1.6rem;
  font-family: var(--font-display); font-size: var(--fs-micro); font-weight: 700;
  letter-spacing: .16em; text-transform: uppercase; font-variation-settings: "wdth" 110;
  background: var(--copper); color: var(--coal);
  transition: background-color var(--m-fast) var(--ease-standard), color var(--m-fast) var(--ease-standard), transform var(--m-fast) var(--ease-standard);
}
.btn::after {
  content: "→"; font-family: var(--font-text); font-size: 1.15rem; line-height: 1;
  transition: transform var(--m-med) var(--ease-editorial);
}
.btn:hover { background: var(--bone); }
.btn:hover::after { transform: translateX(.35em); }
.btn--ghost { background: transparent; color: currentColor; box-shadow: inset 0 0 0 1px currentColor; padding: .7rem 1.1rem .7rem 1.2rem; min-height: 40px; }
.btn--ghost:hover { background: var(--copper); color: var(--coal); box-shadow: none; }
.btn--coal { background: var(--coal); color: var(--bone); }
.btn--coal:hover { background: var(--bone); color: var(--coal); }
.btn--magnetic { will-change: transform; }

/* — toggle de duas opções — */
.toggle { display: inline-flex; gap: 0; border: 1px solid var(--hair); }
.toggle__btn {
  padding: .8rem 1.2rem; font-family: var(--font-display); font-size: var(--fs-micro); font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase; font-variation-settings: "wdth" 110; color: var(--muted);
  transition: background-color var(--m-fast) var(--ease-standard), color var(--m-fast) var(--ease-standard);
}
.toggle__btn + .toggle__btn { border-left: 1px solid var(--hair); }
.toggle__btn[aria-pressed="true"] { background: var(--copper); color: var(--coal); }