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

.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(.8rem, 1.4vw, 1.1rem) var(--margin);
  color: var(--noite);
  border-bottom: 1px solid transparent;
  transition: transform var(--m-med) var(--ease-editorial), color var(--m-fast) var(--ease-standard),
              background-color var(--m-fast) var(--ease-standard), border-color var(--m-fast) var(--ease-standard);
  will-change: transform;
}
.nav.is-hidden { transform: translateY(-110%); }
.nav.is-top { background: var(--linho); }
.nav.is-solid { background: var(--nav-bg, var(--linho)); border-bottom-color: var(--hair); }
.nav.is-dark { color: var(--linho); }
.nav.is-solid.is-dark { border-bottom-color: rgba(245, 241, 236, .14); }

.nav__brand { display: inline-flex; align-items: center; gap: .65rem; justify-self: start; }
.nav__lotus { width: 1.9rem; height: auto; color: var(--accent); }
.nav.is-dark .nav__lotus { color: var(--anil-claro); }
.nav__name { font-family: var(--font-display); font-weight: 600; font-size: 1.45rem; line-height: 1; letter-spacing: .02em; }
.nav__name em { font-weight: 400; font-style: italic; letter-spacing: 0; margin-left: .15em; }
.nav__links { display: flex; gap: clamp(1.1rem, 2vw, 2.2rem); }
.nav__links a { font-size: .84rem; font-weight: 500; }
.nav__cta { justify-self: end; }

@media (max-width: 899px) {
  .nav { grid-template-columns: 1fr auto; }
  .nav__links { display: none; }
}

.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: .6em; font-size: .92rem; font-weight: 600; }
.link--arrow span { display: inline-block; transition: transform var(--m-med) var(--ease-editorial); }
.link--arrow:hover span { transform: translateX(.4em); }

/* — botão: bloco anil de canto vivo; a seta corre no hover — */
.btn {
  position: relative; display: inline-flex; align-items: center; gap: 1rem;
  min-height: 56px; padding: .6rem 1.5rem .6rem 1.6rem;
  font-size: .98rem; font-weight: 600; letter-spacing: -.005em;
  background: var(--anil); color: var(--linho);
  border-radius: 2px;
  transition: background-color var(--m-fast) var(--ease-standard);
}
.btn::after { content: "→"; font-size: 1.05rem; line-height: 1; transition: transform var(--m-med) var(--ease-editorial); }
.btn:hover { background: var(--noite); }
.btn:hover::after { transform: translateX(.3em); }

.btn--ghost {
  background: transparent; color: currentColor; box-shadow: inset 0 0 0 1px currentColor;
  min-height: 40px; padding: .35rem 1rem; font-size: .86rem; gap: .6rem;
}
.btn--ghost:hover { background: var(--noite); color: var(--linho); box-shadow: none; }
.nav.is-dark .btn--ghost:hover { background: var(--linho); color: var(--noite); }
.btn--light { background: var(--linho); color: var(--noite); }
.btn--light:hover { background: var(--lotus); }