:root {
  --nav-blur: blur(36px) saturate(160%);
  --bubble-bg-light: rgba(255, 255, 255, 0.58);
  --bubble-border-light: rgba(0, 0, 0, 0.07);
  --bubble-shadow-light: 0 2px 20px rgba(0, 0, 0, 0.08);
  --bubble-bg-dark: rgba(17, 17, 17, 0.52);
  --bubble-border-dark: rgba(255, 255, 255, 0.13);
  --bubble-shadow-dark: 0 2px 24px rgba(0, 0, 0, 0.32);
}

/* O site é desenhado para fundo claro. Fixamos o esquema e o fundo branco para
   que navegadores em dark mode não usem um canvas escuro (tornando textos
   pretos invisíveis). */
html {
  background-color: #ffffff;
  color-scheme: light;
}

/* =============================================================
   CONTAINER DA NAV
   ============================================================= */
#site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 12px;
  z-index: 999;
  pointer-events: none;
}

/* =============================================================
   BASE COMPARTILHADA DOS DOIS BUBBLES
   ============================================================= */
.bubble-logo,
.bubble-toggle,
.bubble-back-home {
  pointer-events: auto;
  -webkit-backdrop-filter: var(--nav-blur);
  backdrop-filter: var(--nav-blur);
  background: var(--bubble-bg-light);
  border: 1px solid var(--bubble-border-light);
  box-shadow: var(--bubble-shadow-light);
  color: #111;
  transition:
    background-color 0.35s ease,
    border-color 0.35s ease,
    box-shadow 0.35s ease,
    color 0.35s ease;
}

/* --- DARK THEME (nav sobre hero escuro) --- */
#site-nav.nav--on-dark .bubble-logo,
#site-nav.nav--on-dark .bubble-toggle,
#site-nav.nav--on-dark ~ footer .bubble-back-home {
  background: var(--bubble-bg-dark);
  border-color: var(--bubble-border-dark);
  box-shadow: var(--bubble-shadow-dark);
  color: #fff;
}

/* Pills do overlay seguem o mesmo tema via sibling combinator */
#site-nav.nav--on-dark ~ #nav-overlay .nav-pill-link {
  background: var(--bubble-bg-dark);
  border-color: var(--bubble-border-dark);
  box-shadow: var(--bubble-shadow-dark);
  color: #fff;
}

/* =============================================================
   BUBBLE LOGO (pill com texto)
   ============================================================= */
.bubble-logo {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  border-radius: 999px;
  text-decoration: none;
  color: inherit;
  /* view-transition-name aqui para o morph cross-document */
  view-transition-name: site-nav;
}

.site-nav-logo {
  display: block;
  font-family: "Instrument Serif", serif;
  font-weight: 700;
  font-size: 18px;
  line-height: 1.2;
  white-space: nowrap;
  color: inherit;
}

/* =============================================================
   BUBBLE TOGGLE (círculo hamburger)
   ============================================================= */
.bubble-toggle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0;
}

.menu-line {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition:
    transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1),
    opacity 0.2s ease;
  transform-origin: center;
}

.bubble-toggle.open .menu-line:first-child {
  transform: translateY(4px) rotate(45deg);
}

.bubble-toggle.open .menu-line:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

/* =============================================================
   ANIMAÇÃO DE ENTRADA (páginas de work — via nav-enter.js)
   A home nunca tem nav--enter-pending; a nav é imediatamente visível.
   ============================================================= */
#site-nav.nav--enter-pending .bubble-logo,
#site-nav.nav--enter-pending .bubble-toggle {
  opacity: 0;
  transform: translateY(-14px) scale(0.9);
  -webkit-backdrop-filter: blur(0px);
  backdrop-filter: blur(0px);
  pointer-events: none;
}

#site-nav.nav--entering .bubble-logo {
  opacity: 1;
  transform: none;
  -webkit-backdrop-filter: var(--nav-blur);
  backdrop-filter: var(--nav-blur);
  transition:
    background-color 0.35s ease,
    border-color 0.35s ease,
    box-shadow 0.35s ease,
    color 0.35s ease,
    opacity 0.45s ease,
    transform 0.45s cubic-bezier(0.2, 0.8, 0.2, 1),
    -webkit-backdrop-filter 0.55s ease 0.4s,
    backdrop-filter 0.55s ease 0.4s;
}

/* Toggle entra 80ms depois do logo */
#site-nav.nav--entering .bubble-toggle {
  opacity: 1;
  transform: none;
  -webkit-backdrop-filter: var(--nav-blur);
  backdrop-filter: var(--nav-blur);
  transition:
    background-color 0.35s ease 0.08s,
    border-color 0.35s ease 0.08s,
    box-shadow 0.35s ease 0.08s,
    color 0.35s ease 0.08s,
    opacity 0.45s ease 0.08s,
    transform 0.45s cubic-bezier(0.2, 0.8, 0.2, 1) 0.08s,
    -webkit-backdrop-filter 0.55s ease 0.48s,
    backdrop-filter 0.55s ease 0.48s;
}

/* =============================================================
   OVERLAY (GSAP controla display + escala dos pills)
   ============================================================= */
#nav-overlay {
  position: fixed;
  inset: 0;
  display: none;   /* JS alterna para flex */
  align-items: center;
  justify-content: center;
  z-index: 998;
  pointer-events: none;
}

.nav-pill-list {
  list-style: none;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  width: 100%;
  max-width: 1280px;
  pointer-events: none;
}

.nav-pill-col {
  flex: 0 0 calc(50% - 6px);
  display: flex;
  pointer-events: auto;
}

.nav-pill-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 160px;
  padding: clamp(1.5rem, 2.5vw, 3.5rem) 0;
  border-radius: 999px;
  font-family: "DM Sans", sans-serif;
  font-size: clamp(1.5rem, 3.5vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  line-height: 1;
  text-decoration: none;
  color: #111;
  -webkit-backdrop-filter: var(--nav-blur);
  backdrop-filter: var(--nav-blur);
  background: var(--bubble-bg-light);
  border: 1px solid var(--bubble-border-light);
  box-shadow: var(--bubble-shadow-light);
  overflow: hidden;
  white-space: nowrap;
  will-change: transform;
  transform-origin: center;
  transition: background 0.25s ease, color 0.25s ease;
}

@media (min-width: 900px) {
  .nav-pill-link:hover {
    background: rgba(0, 0, 0, 0.06);
  }

  #site-nav.nav--on-dark ~ #nav-overlay .nav-pill-link:hover {
    background: rgba(255, 255, 255, 0.14);
  }
}

.nav-pill-label {
  display: inline-block;
  will-change: transform, opacity;
}

/* Mobile: pills empilhados verticalmente abaixo dos bubbles */
@media (max-width: 768px) {
  #nav-overlay {
    align-items: flex-start;
  }

  .nav-pill-list {
    padding-top: 88px;
    gap: 10px;
  }

  .nav-pill-col {
    flex: 0 0 100%;
  }

  .nav-pill-link {
    min-height: 76px;
    font-size: clamp(1.1rem, 3vw, 1.8rem);
  }
}

/* =============================================================
   FEEDBACK AO NAVEGAR (click no card do carrossel)
   ============================================================= */
@media (prefers-reduced-motion: no-preference) {
  #site-nav.is-navigating .bubble-logo,
  #site-nav.is-navigating .bubble-toggle {
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    pointer-events: none;
  }
}

/* =============================================================
   MOVIMENTO REDUZIDO
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  .bubble-logo,
  .bubble-toggle,
  .bubble-back-home {
    transition:
      background-color 0.35s ease,
      border-color 0.35s ease,
      box-shadow 0.35s ease,
      color 0.35s ease;
  }

  #site-nav.nav--enter-pending .bubble-logo,
  #site-nav.nav--enter-pending .bubble-toggle {
    opacity: 1;
    transform: none;
    -webkit-backdrop-filter: var(--nav-blur);
    backdrop-filter: var(--nav-blur);
    pointer-events: auto;
  }

  #site-nav.nav--entering .bubble-logo,
  #site-nav.nav--entering .bubble-toggle {
    transition:
      background-color 0.35s ease,
      border-color 0.35s ease,
      box-shadow 0.35s ease,
      color 0.35s ease;
  }
}

/* =============================================================
   FOOTER — mesmas margens da nav (12px), conteúdo alinhado ao bottom
   ============================================================= */
body > footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding: 12px;
  z-index: 50;
  pointer-events: none;
}

body > footer > * {
  pointer-events: auto;
}

.site-copyright {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -0.025em;
  opacity: 0.3;
  line-height: 1;
}