/* =============================================================
   SITE HEADER & NAVIGATION
   Mobile-first | @package Horizon
   ============================================================= */

.site-header {
  position: fixed;
  width: 100%;
  top: var(--space-2);
  z-index: var(--z-sticky);
  padding-block: var(--space-2);
  transition: transform var(--transition-base);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3.5rem;
  padding: var(--space-2) var(--space-4);
  gap: var(--space-4);

  /* Glassmorphism Pill */
  background-color: var(--color-gray-900);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-white-12);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
}

.site-logo a {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: var(--color-white);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-tight);
}

.site-logo img {
  max-height: 2rem;
  width: auto;
}

/* =============================================================
   NAVIGATION — base (mobile oculto)
   ============================================================= */

/* Nav hidden on mobile by default with animation properties */
.nav-primary {
  display: block;
  position: absolute;
  top: calc(100% + var(--space-2));
  left: var(--site-padding-x);
  right: var(--site-padding-x);
  background-color: var(--color-gray-900);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-white-12);
  border-radius: var(--radius-2xl);
  padding: var(--space-4);
  box-shadow: var(--shadow-xl);

  /* Animation tokens */
  opacity: 0;
  visibility: hidden;
  clip-path: circle(0% at calc(100% - 2.5rem) 1.5rem);
  transform: translateY(1rem);
  transition:
    opacity var(--transition-base),
    visibility var(--transition-base),
    transform var(--transition-slow),
    clip-path var(--transition-slow) ease-in-out;
  pointer-events: none;
}

.nav-primary.is-open {
  opacity: 1;
  visibility: visible;
  clip-path: circle(150% at calc(100% - 2.5rem) 1.5rem);
  transform: translateY(0);
  pointer-events: auto;
}

/* Staggered items entrance */
.nav-primary li {
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 0.4s ease,
    transform 0.4s ease;
}

.nav-primary.is-open li {
  opacity: 1;
  transform: translateY(0);
}

.nav-primary.is-open li:nth-child(1) {
  transition-delay: 0.15s;
}
.nav-primary.is-open li:nth-child(2) {
  transition-delay: 0.2s;
}
.nav-primary.is-open li:nth-child(3) {
  transition-delay: 0.25s;
}
.nav-primary.is-open li:nth-child(4) {
  transition-delay: 0.3s;
}
.nav-primary.is-open li:nth-child(5) {
  transition-delay: 0.35s;
}
.nav-primary.is-open li:nth-child(6) {
  transition-delay: 0.4s;
}

.nav-primary ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-primary a {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-white);
  background-color: transparent;
  border-radius: var(--radius-xl);
  text-decoration: none;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast);
}

.nav-primary a:hover,
.nav-primary .current-menu-ancestor > a {
  background-color: var(--color-white-1a);
  color: var(--color-white);
}
.nav-primary .current-menu-item > a,
.nav-primary .current-menu-item > a:hover {
  background-color: var(--color-secondary);
}
/* CTA (último item) — mobile */
.nav-primary li:last-child a {
  margin-top: var(--space-2);
  justify-content: center;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-full);
}

.nav-primary li:last-child a:hover,
.nav-primary li:last-child.current-menu-item > a {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
}

/* --- Dropdown mobile --- */
.nav-primary .menu-item-has-children {
  position: relative;
}

.nav-primary .sub-menu {
  position: static;
  box-shadow: none;
  border: none;
  background-color: var(--color-white-12);
  border-radius: var(--radius-lg);
  padding: var(--space-2) var(--space-4);
  opacity: 1;
  visibility: visible;
  transform: none;
  pointer-events: auto;
  display: none;
  flex-direction: column;
  gap: var(--space-1);
}

.nav-primary .sub-menu li {
  margin: 0;
}

.nav-primary .menu-item-has-children.is-open > .sub-menu {
  display: flex;
}

/* --- Mobile Toggle (visível por padrão) --- */
.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: background-color var(--transition-fast);
  color: var(--color-white);
}

.nav-toggle:hover {
  background-color: var(--color-white-1a);
}

.nav-toggle__icon {
  overflow: visible;
}

.nav-toggle__bar {
  transition:
    transform var(--transition-slow),
    opacity var(--transition-base),
    stroke var(--transition-base);
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar--top {
  transform: translate(-3px, 4px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar--middle {
  opacity: 0;
  transform: scaleX(0);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar--bottom {
  transform: translate(-3px, -3px) rotate(-45deg);
}

/* =============================================================
   DESKTOP — @media (min-width: 1024px)
   ============================================================= */

@media (min-width: 1024px) {
  .site-header {
    top: var(--space-4);
    margin-block: var(--space-4);
  }

  .site-header__inner {
    min-height: 4.5rem;
    padding: var(--space-2) var(--space-6);
    gap: var(--space-6);
  }
  .site-logo {
    display: flex;
    place-items: center;
  }
  .site-logo a {
    font-size: var(--font-size-2xl);
  }

  .site-logo img {
    max-height: fit-content;
    width: 145px;
  }

  /* Nav visível no desktop */
  .nav-primary {
    display: block;
    position: static;
    background: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border: none;
    border-radius: 0;
    padding: 0;
    box-shadow: none;

    /* Reset mobile animations */
    opacity: 1;
    visibility: visible;
    clip-path: none;
    transform: none;
    pointer-events: auto;
    transition: none;
  }

  .nav-primary li {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .nav-primary ul {
    flex-direction: row;
    gap: var(--space-3);
    align-items: center;
  }
  .nav-primary ul li + li {
    margin-top: 0;
  }
  .nav-primary a {
    display: inline-flex;
    justify-content: center;
    padding: var(--space-2) var(--space-6);
    color: var(--color-text);
    background-color: var(--color-white);
    border-radius: var(--radius-full);
    font-size: var(--font-size-base);
  }

  .nav-primary a:hover,
  .nav-primary .current-menu-ancestor > a {
    background-color: var(--color-gray-100);
    color: var(--color-text);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
  }

  .site-header__actions {
    display: none;
  }
  /* CTA (último item) — desktop */
  .nav-primary li:last-child a {
    margin-top: 0;
    justify-content: center;
    background-color: var(--color-primary);
    color: var(--color-white);
  }

  .nav-primary li:last-child a:hover,
  .nav-primary li:last-child.current-menu-item > a {
    background-color: var(--color-primary-dark);
  }

  /* Dropdown desktop */
  .nav-primary .sub-menu {
    position: absolute;
    top: calc(100% + var(--space-2));
    left: 0;
    min-width: 14rem;
    background-color: var(--color-white);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition:
      opacity var(--transition-base),
      transform var(--transition-base),
      visibility var(--transition-base);
    pointer-events: none;
    z-index: var(--z-dropdown);
    display: flex;
  }

  .nav-primary .menu-item-has-children:hover > .sub-menu,
  .nav-primary .menu-item-has-children:focus-within > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }

  /* Toggle oculto no desktop */
  .nav-toggle {
    display: none;
  }
}