html { scroll-behavior: smooth; }
body { background: oklch(0.07 0.008 256); min-height: 100vh; overflow-x: hidden; }

#field { position: fixed; inset: 0; z-index: 0; pointer-events: none; }

.logo-bg { position: fixed; bottom: 5%; left: 3%; right: auto; width: clamp(8vw, 9.6vw, 12.6vw); opacity: 0.045; pointer-events: none; z-index: 2; user-select: none; -webkit-user-select: none; }

.obs-top { position: fixed; top: 0; left: 0; right: 0; z-index: 32; display: flex; justify-content: space-between; align-items: center; padding: 0.7rem clamp(1.4rem, 3.5vw, 2.6rem); background: oklch(0.12 0.01 256 / 0.85); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid oklch(0.80 0.02 250 / 0.07); }
.obs-top .grp { display: flex; align-items: center; gap: 0.7rem; text-decoration: none; color: inherit; }
.obs-top { transition: background 0.5s var(--ease); }
.obs-top.scrolling { background: oklch(0.12 0.01 256 / 0.25); }
.logo-mark { height: 48px; width: auto; display: block; opacity: 0.9; flex-shrink: 0; }
.obs-top b { font-family: var(--serif); font-weight: 500; font-size: 0.96rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink); }
.obs-nav { display: flex; align-items: center; gap: clamp(0.6rem, 1.2vw, 1.2rem); }
.obs-nav__link { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-mute); transition: color 0.18s; white-space: nowrap; text-decoration: none; }
.obs-nav__link:hover { color: var(--ink-soft); text-decoration: underline; text-decoration-color: var(--sun); text-underline-offset: 4px; text-decoration-thickness: 1px; }
.obs-nav__link.active { color: var(--ink-soft); text-decoration: underline; text-decoration-color: var(--sun); text-underline-offset: 4px; text-decoration-thickness: 1px; }
.obs-nav__link[href="digital-artisan.html"] { color: var(--sun); }
@media (max-width: 860px) {
  .obs-top { flex-wrap: wrap; }
  .obs-nav { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: 0.4rem; scrollbar-width: none; }
  .obs-nav::-webkit-scrollbar { display: none; }
}
.obs-top .site-name { display: flex; flex-direction: column; justify-content: space-between; height: 48px; font-family: var(--mono); font-weight: 300; font-size: 0.60rem; letter-spacing: 0.15em; text-transform: uppercase; line-height: 1; gap: 0; }

.page-head { position: relative; z-index: 4; text-align: center; padding: clamp(8rem, 15vh, 11rem) 2rem clamp(3rem, 6vh, 5rem); }
.page-head__eye { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--sun-soft); margin-bottom: 1.2rem; }
.page-head__title { font-family: var(--serif); font-style: italic; font-weight: 300; font-size: clamp(3.5rem, 11vw, 7.5rem); line-height: 0.86; letter-spacing: -0.03em; color: var(--ink); }
.page-head__title em { color: var(--sun); }
.page-head__sub { margin-top: 1.4rem; font-family: var(--serif); font-style: italic; color: var(--ink-mute); font-size: clamp(0.95rem, 1.4vw, 1.1rem); }
.page-head__hint { margin-top: 1.6rem; font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-faint); }

/* Arquivo em correntes — uma cartografia textual, sem painéis ou filtros. */
body[data-mundo="vestigios"] .correntes {
  position: relative;
  z-index: 4;
  width: min(72rem, calc(100% - clamp(2rem, 10vw, 9rem)));
  margin: 0 auto clamp(0.5rem, 2vh, 1.5rem);
}

body[data-mundo="vestigios"] .correntes__cabecalho {
  display: flex;
  align-items: baseline;
  gap: clamp(1rem, 2.5vw, 2.5rem);
  margin-bottom: clamp(1.5rem, 4vh, 2.75rem);
}

body[data-mundo="vestigios"] .correntes__cabecalho::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line-soft);
}

body[data-mundo="vestigios"] #correntesTitulo {
  flex: 0 0 auto;
  font-family: var(--serif);
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  font-style: italic;
  font-weight: 300;
  line-height: 1.2;
  color: var(--ink-soft);
  text-wrap: balance;
}

body[data-mundo="vestigios"] #galeriasLista {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(0.75rem, 4vw, 4rem);
  margin-inline: clamp(0rem, 2vw, 1.5rem);
  isolation: isolate;
}

body[data-mundo="vestigios"] #galeriasLista::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0.55rem;
  left: 16.666%;
  right: 16.666%;
  height: 1px;
  background: var(--line);
}

body[data-mundo="vestigios"] .corrente-chave {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 0.65rem;
  min-width: 0;
  min-height: 44px;
  padding: 1.75rem 0 0.5rem;
  border: 0;
  background: transparent;
  color: var(--ink-mute);
  text-align: left;
  cursor: pointer;
  touch-action: manipulation;
  transition: color var(--fast) var(--ease), opacity var(--fast) var(--ease);
}

body[data-mundo="vestigios"] .corrente-chave::before {
  content: "";
  position: absolute;
  top: 0.28rem;
  left: 50%;
  width: 7px;
  height: 7px;
  border: 1px solid var(--ink-faint);
  border-radius: 50%;
  background: var(--ground-deep);
  transform: translateX(-50%);
  transition: background-color var(--fast) var(--ease), border-color var(--fast) var(--ease), transform var(--fast) var(--ease);
}

body[data-mundo="vestigios"] .corrente-chave__indice,
body[data-mundo="vestigios"] .corrente-chave__contagem {
  font-family: var(--mono);
  font-size: 0.62rem;
  line-height: 1.35;
  letter-spacing: 0.1em;
  font-variant-numeric: tabular-nums lining-nums;
  color: var(--ink-faint);
}

body[data-mundo="vestigios"] .corrente-chave__nome {
  min-width: 0;
  font-family: var(--serif);
  font-size: clamp(0.95rem, 1.6vw, 1.15rem);
  font-style: italic;
  font-weight: 300;
  line-height: 1.25;
  color: currentColor;
  text-wrap: balance;
}

body[data-mundo="vestigios"] .corrente-chave__contagem {
  justify-self: end;
  white-space: nowrap;
}

body[data-mundo="vestigios"] .corrente-chave:hover,
body[data-mundo="vestigios"] .corrente-chave.is-ativa {
  color: var(--ink);
}

body[data-mundo="vestigios"] .corrente-chave.is-ativa::before {
  border-color: var(--sun);
  background: var(--sun);
  transform: translateX(-50%) scale(1.15);
}

body[data-mundo="vestigios"] .corrente-chave.is-ativa .corrente-chave__indice,
body[data-mundo="vestigios"] .corrente-chave.is-ativa .corrente-chave__contagem {
  color: var(--sun-soft);
}

body[data-mundo="vestigios"] .corrente-chave:focus-visible,
body[data-mundo="vestigios"] .rio__quadro:focus-visible {
  outline: 1px solid var(--sun);
  outline-offset: 5px;
}

body[data-mundo="vestigios"] .correntes__letreiro {
  display: grid;
  grid-template-columns: minmax(4.5rem, 0.35fr) minmax(0, 1fr) minmax(5rem, 0.35fr);
  align-items: end;
  gap: clamp(1rem, 3vw, 3rem);
  min-height: clamp(7.5rem, 18vh, 10rem);
  margin-top: clamp(1.5rem, 4vh, 3rem);
  padding: clamp(1.25rem, 3vw, 2rem) 0;
  border-top: 1px solid var(--line-faint);
  border-bottom: 1px solid var(--line-faint);
}

body[data-mundo="vestigios"] .correntes__indice,
body[data-mundo="vestigios"] .correntes__contagem {
  font-family: var(--mono);
  font-size: 0.62rem;
  line-height: 1.4;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-variant-numeric: tabular-nums lining-nums;
  color: var(--sun-soft);
}

body[data-mundo="vestigios"] .correntes__texto {
  min-width: 0;
  max-width: 44rem;
}

body[data-mundo="vestigios"] .correntes__titulo {
  font-family: var(--serif);
  font-size: clamp(1.75rem, 4.5vw, 3.4rem);
  font-style: italic;
  font-weight: 300;
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-wrap: balance;
}

body[data-mundo="vestigios"] .correntes__descricao {
  max-width: 58ch;
  margin-top: 0.75rem;
  font-family: var(--serif);
  font-size: clamp(0.95rem, 1.4vw, 1.08rem);
  line-height: 1.45;
  color: var(--ink-mute);
  text-wrap: pretty;
}

body[data-mundo="vestigios"] .correntes__contagem {
  justify-self: end;
  text-align: right;
}

body[data-mundo="vestigios"] .correntes__indice:empty,
body[data-mundo="vestigios"] .correntes__titulo:empty,
body[data-mundo="vestigios"] .correntes__descricao:empty,
body[data-mundo="vestigios"] .correntes__contagem:empty {
  display: none;
}

body[data-mundo="vestigios"] .rio {
  transition: opacity var(--base) var(--ease), transform var(--base) var(--ease);
}

body[data-mundo="vestigios"] .rio.is-trocando {
  opacity: 0.18;
  transform: translateY(8px);
  pointer-events: none;
}

@media (max-width: 560px) {
  body[data-mundo="vestigios"] .correntes {
    width: calc(100% - 2rem);
  }

  body[data-mundo="vestigios"] .correntes__cabecalho {
    margin-bottom: 1.25rem;
  }

  body[data-mundo="vestigios"] #galeriasLista {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
    margin-inline: 0;
    padding-left: 1.25rem;
  }

  body[data-mundo="vestigios"] #galeriasLista::before {
    top: 1.4rem;
    bottom: 1.4rem;
    left: 0.22rem;
    right: auto;
    width: 1px;
    height: auto;
  }

  body[data-mundo="vestigios"] .corrente-chave {
    grid-template-columns: 2.75rem minmax(0, 1fr) auto;
    min-height: 52px;
    padding: 0.55rem 0 0.55rem 1.25rem;
  }

  body[data-mundo="vestigios"] .corrente-chave::before {
    top: 50%;
    left: -1.03rem;
    transform: translateY(-50%);
  }

  body[data-mundo="vestigios"] .corrente-chave.is-ativa::before {
    transform: translateY(-50%) scale(1.15);
  }

  body[data-mundo="vestigios"] .correntes__letreiro {
    grid-template-columns: 1fr auto;
    align-items: start;
    min-height: 8.5rem;
    gap: 0.75rem 1rem;
    margin-top: 1.25rem;
    padding-block: 1.25rem;
  }

  body[data-mundo="vestigios"] .correntes__texto {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  body[data-mundo="vestigios"] .correntes__contagem {
    grid-column: 2;
    grid-row: 1;
  }
}

@media (max-height: 560px) and (orientation: landscape) {
  body[data-mundo="vestigios"] .page-head {
    padding-top: 6rem;
    padding-bottom: 1.75rem;
  }

  body[data-mundo="vestigios"] .correntes__cabecalho {
    margin-bottom: 1rem;
  }

  body[data-mundo="vestigios"] .corrente-chave {
    padding-top: 1.4rem;
  }

  body[data-mundo="vestigios"] .correntes__letreiro {
    min-height: 6.5rem;
    margin-top: 1rem;
    padding-block: 0.9rem;
  }

  body[data-mundo="vestigios"] .correntes__titulo {
    font-size: clamp(1.5rem, 4vw, 2.35rem);
  }

  body[data-mundo="vestigios"] .rio__viewport {
    min-height: 62vh;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  body[data-mundo="vestigios"] .corrente-chave,
  body[data-mundo="vestigios"] .corrente-chave::before,
  body[data-mundo="vestigios"] .rio {
    transition: none;
  }

  body[data-mundo="vestigios"] .rio.is-trocando {
    opacity: 1;
    transform: none;
  }
}

.foot { position: relative; z-index: 4; border-top: 1px solid oklch(0.80 0.02 250 / 0.07); padding: clamp(2.5rem, 5vh, 4rem) clamp(2rem, 5vw, 6rem); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.foot a { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-mute); transition: color 0.18s; text-decoration: none; }
.foot a:hover { color: var(--sun); }
.foot .sig { font-family: var(--serif); font-style: italic; font-size: 0.88rem; color: var(--ink-faint); }
.skip-link { position: absolute; left: -9999px; top: 0; z-index: 999; padding: 1rem; background: var(--ground); }