/* ══════════════════════════════════════════════════
   AngieMon — nav.css
   Header · Desktop Nav · Hamburger · Mobile Overlay
   ══════════════════════════════════════════════════ */

/* ── Site Header ──────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition);
}

/* backdrop-filter stays on a separate rule so it never
   affects children with position:fixed (see mobile-nav) */
.site-header--scrolled {
  background: rgba(17, 17, 17, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--gold-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* ── Logo ─────────────────────────────────────────── */
.header__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.logo-mark {
  color: var(--gold);
  font-size: 1rem;
  line-height: 1;
  user-select: none;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--ivory);
  letter-spacing: 0.1em;
  font-weight: 500;
}

/* ── Desktop Nav ──────────────────────────────────── */
.header__nav { display: none; }

.nav__list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav__link {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted-dark);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav__link:hover { color: var(--ivory); }

.nav__link--cta {
  color: var(--gold);
  border: 1.5px solid var(--gold-border);
  padding: 0.5rem 1.25rem;
}

.nav__link--cta:hover {
  background: var(--gold-glow);
  border-color: var(--gold);
  color: var(--gold-light);
}

/* ── Hamburger Button ─────────────────────────────── */
.nav__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: var(--z-nav);
  position: relative;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ivory);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
  transform-origin: center;
}

.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile Nav (full-screen overlay) ────────────── */
/*
   IMPORTANT: must live OUTSIDE <header> in the DOM.
   backdrop-filter on .site-header--scrolled creates a
   new containing block, which would break position:fixed
   on any child element.
*/
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 39;
  background: rgba(17, 17, 17, 0.98);
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateY(-100%);
  transition: transform 0.45s var(--ease-out);
  pointer-events: none;
  visibility: hidden;
}

.mobile-nav[aria-hidden="false"] {
  transform: translateY(0);
  pointer-events: all;
  visibility: visible;
}

.mobile-nav__list {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  padding-top: var(--header-h);
}

.mobile-nav__link {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 8vw, 2.6rem);
  color: var(--text-muted-dark);
  letter-spacing: 0.06em;
  font-weight: 400;
  display: block;
  transition: color var(--transition), letter-spacing var(--transition);
}

.mobile-nav__link:hover {
  color: var(--ivory);
  letter-spacing: 0.1em;
}

/* ── Mobile Nav CTA (agendar) ─────────────────────── */
.mobile-nav__link--cta {
  color: var(--gold);
  border: 1.5px solid var(--gold-border);
  padding: 0.75rem 2.5rem;
  border-radius: var(--radius-xl);
  font-size: clamp(1rem, 4vw, 1.2rem);
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-top: 0.5rem;
  transition: background var(--transition), color var(--transition);
}

.mobile-nav__link--cta:hover {
  background: var(--gold-glow);
  letter-spacing: 0.14em;
}

/* ── Desktop overrides ────────────────────────────── */
@media (min-width: 768px) {
  .header__nav { display: block; }
  .nav__toggle  { display: none; }
  .mobile-nav   { display: none; }
}