/* ── Base ───────────────────────────────────────────────────────── */

.overlay {
  position: absolute;
  pointer-events: none;
  will-change: opacity, transform, filter, clip-path;
  color: var(--osso);

  /* Vars consumidas pelo modo 'cloud-dissolve'. Default = identidade. */
  --cloud-ty: 0px;
  --cloud-scale: 1;
}

/* ── Wordmark hero (Cena 1A) ────────────────────────────────────── */

.overlay[data-id="wordmark-hero"] {
  top: 50%;
  left: 50%;
  transform: translate(-50%, calc(-50% + var(--cloud-ty))) scale(var(--cloud-scale));
  font-family: var(--font-display);
  font-variation-settings: var(--fraunces-display);
  font-weight: 300;
  font-size: clamp(80px, 13vw, 180px);
  letter-spacing: 0.32em;
  white-space: nowrap;
  text-align: center;
  color: var(--osso);
  text-shadow: var(--shadow-overlay-strong);
  will-change: transform, filter;
}

.overlay[data-id="wordmark-hero"] > span {
  display: inline-block;
  animation: dunarFloat 5s var(--ease-in-out-cinema) infinite;
  will-change: transform;
}

/* Amplitude reduzida (era ±14px → agora ±8px) pra não conflitar com cloud-dissolve
   na entrada/saída. Sutil o suficiente pra dar sensação de "estar nas nuvens"
   sem brigar com o transform do pai durante o fade. */
@keyframes dunarFloat {
  0%   { transform: translate3d(0, -8px, 0); }
  50%  { transform: translate3d(0, 8px, 0); }
  100% { transform: translate3d(0, -8px, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .overlay[data-id="wordmark-hero"] > span { animation: none; }
}

/* ── Tagline principal (transição 1A→2) ─────────────────────────── */

/* Tagline da marca: peso maior que headlines de cena (hierarquia). */
.overlay[data-id="tagline-principal"] {
  bottom: clamp(9vh, 11vh, 14vh);
  left: clamp(2rem, 6vw, 6rem);
  transform: translateY(var(--cloud-ty)) scale(var(--cloud-scale));
  transform-origin: left bottom;
  font-family: var(--font-display);
  font-variation-settings: var(--fraunces-display-italic);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(48px, 6.4vw, 108px);
  letter-spacing: 0.005em;
  line-height: 1.0;
  text-align: left;
  max-width: 20ch;
  color: var(--osso);
  text-shadow: var(--shadow-overlay-medium);
}

.overlay[data-id="tagline-principal"] em {
  color: var(--duna);
  font-style: italic;
  font-weight: 400;
}

/* ── Headlines bottom-left (cena 2, 3, 4) ───────────────────────── */

/* Headlines de cena: peso abaixo da tagline da marca. */
.overlay[data-id="drone-headline"],
.overlay[data-id="construcao-headline"],
.overlay[data-id="habitado-headline"] {
  bottom: clamp(11vh, 14vh, 16vh);
  left: clamp(2rem, 6vw, 6rem);
  transform: translateY(var(--cloud-ty)) scale(var(--cloud-scale));
  transform-origin: left bottom;
  font-family: var(--font-display);
  font-variation-settings: var(--fraunces-display);
  font-weight: 300;
  font-size: clamp(34px, 4.8vw, 76px);
  line-height: 1.0;
  letter-spacing: -0.005em;
  color: var(--osso);
  max-width: 14ch;
  text-shadow: var(--shadow-overlay-medium);
}

.overlay[data-id="drone-headline"] em,
.overlay[data-id="construcao-headline"] em,
.overlay[data-id="habitado-headline"] em {
  font-style: italic;
  font-variation-settings: var(--fraunces-display-italic);
  font-weight: 400;
  color: var(--duna);
  letter-spacing: 0;
}

/* ── Bodies bottom-left (cena 2, 3, 4) ──────────────────────────── */

.overlay[data-id="drone-body"],
.overlay[data-id="construcao-body"],
.overlay[data-id="habitado-body"] {
  bottom: clamp(5vh, 6.5vh, 8vh);
  left: clamp(2rem, 6vw, 6rem);
  transform: translateY(var(--cloud-ty)) scale(var(--cloud-scale));
  transform-origin: left bottom;
  font-family: var(--font-serif);
  font-variation-settings: var(--fraunces-body);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(15px, 1.2vw, 19px);
  line-height: 1.55;
  letter-spacing: 0.005em;
  color: var(--pele);
  max-width: 42ch;
  text-shadow: var(--shadow-overlay-soft);
}

/* ── Tags top-right (cena 2, 3, 4) ──────────────────────────────── */

.overlay[data-id="drone-tag"],
.overlay[data-id="construcao-tag"],
.overlay[data-id="habitado-tag"] {
  top: clamp(7vh, 8vh, 10vh);
  right: clamp(2rem, 6vw, 6rem);
  transform: translateY(var(--cloud-ty)) scale(var(--cloud-scale));
  transform-origin: right top;
  font-family: var(--font-display);
  font-variation-settings: var(--fraunces-display-italic);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(15px, 1.25vw, 20px);
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--osso);
  text-align: right;
  text-shadow: var(--shadow-overlay-soft);
  max-width: 22ch;
}

.tag-line {
  display: block;
}

/* ── Numeração vertical lateral direita (todas as cenas) ────────── */

.overlay[data-id^="vertical-tag-"] {
  top: 50%;
  right: clamp(1.25rem, 2.5vw, 2.5rem);
  transform: translateY(calc(-50% + var(--cloud-ty))) scale(var(--cloud-scale));
  transform-origin: center right;
  font-family: var(--font-display);
  font-variation-settings: var(--fraunces-display-italic);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(12px, 1vw, 15px);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--osso);
  opacity: 0.7;
  text-shadow: var(--shadow-overlay-soft);
}

.vertical-text {
  display: inline-block;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  white-space: nowrap;
}

/* ── Fechamento centro (cena 5) ─────────────────────────────────── */

.overlay[data-id="cena-5-fechamento"] {
  top: 50%;
  left: 50%;
  transform: translate(-50%, calc(-50% + var(--cloud-ty))) scale(var(--cloud-scale));
  font-family: var(--font-display);
  font-variation-settings: var(--fraunces-display-italic);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(28px, 3.5vw, 52px);
  letter-spacing: 0.02em;
  text-align: center;
  line-height: 1.25;
  max-width: 80vw;
  text-shadow: var(--shadow-overlay-medium);
}

.overlay[data-id="cena-5-fechamento"] em {
  color: var(--duna);
  font-style: italic;
  font-weight: 400;
}

.overlay-line {
  display: block;
}

/* ── Scroll cue (frame inicial) ─────────────────────────────────── */

.scroll-cue {
  position: fixed;
  bottom: 6vh;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.3rem;
  pointer-events: none;
  opacity: 0;
  transition: opacity 1s var(--ease-out-cinema), transform 1s var(--ease-out-cinema);
}

.scroll-cue.is-visible {
  opacity: 1;
}

.scroll-cue.is-hidden {
  opacity: 0;
  transform: translate(-50%, 14px);
}

.scroll-cue-label {
  font-family: var(--font-display);
  font-variation-settings: var(--fraunces-display-italic);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.05rem, 1.5vw, 1.45rem);
  letter-spacing: 0.04em;
  color: var(--osso);
  opacity: 0.94;
  text-transform: none;
  text-shadow:
    0 2px 28px rgba(14, 10, 7, 0.7),
    0 1px 3px rgba(14, 10, 7, 0.5);
  animation: cueDrift 6s var(--ease-in-out-cinema) infinite;
  will-change: transform;
}

@keyframes cueDrift {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-3px); }
}

.scroll-cue-line {
  position: relative;
  width: 1px;
  height: 56px;
  background: linear-gradient(to bottom, transparent, var(--duna) 25%, var(--duna) 75%, transparent);
  opacity: 0.55;
  overflow: hidden;
}

.scroll-cue-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 45%;
  background: linear-gradient(to bottom, transparent, var(--osso));
  animation: scrollHintFlow 2.4s var(--ease-in-out-cinema) infinite;
}

@keyframes scrollHintFlow {
  0%   { transform: translateY(-100%); opacity: 0; }
  20%  { opacity: 1; }
  80%  { opacity: 1; }
  100% { transform: translateY(250%); opacity: 0; }
}

/* ── Responsivo ─────────────────────────────────────────────────── */

@media (max-width: 720px) {
  .overlay[data-id="wordmark-hero"]     { font-size: clamp(56px, 16vw, 88px); }
  .overlay[data-id="tagline-principal"] {
    font-size: clamp(28px, 8vw, 44px);
    max-width: 86vw;
    bottom: clamp(13vh, 17vh, 22vh);
    left: clamp(1.25rem, 5vw, 2rem);
  }

  .overlay[data-id="drone-headline"],
  .overlay[data-id="construcao-headline"],
  .overlay[data-id="habitado-headline"] {
    font-size: clamp(28px, 8vw, 44px);
    left: clamp(1.25rem, 5vw, 2rem);
    bottom: clamp(13vh, 17vh, 22vh);
    white-space: normal;
  }

  .overlay[data-id="drone-body"],
  .overlay[data-id="construcao-body"],
  .overlay[data-id="habitado-body"] {
    left: clamp(1.25rem, 5vw, 2rem);
    bottom: clamp(5vh, 7vh, 9vh);
    max-width: 86vw;
    font-size: 13.5px;
  }

  .overlay[data-id="drone-tag"],
  .overlay[data-id="construcao-tag"],
  .overlay[data-id="habitado-tag"] {
    top: clamp(4vh, 6vh, 8vh);
    right: clamp(1.25rem, 5vw, 2rem);
    font-size: 13px;
  }

  .overlay[data-id^="vertical-tag-"] {
    right: clamp(1.1rem, 3vw, 1.5rem);
    font-size: 11px;
    letter-spacing: 0.2em;
  }

  .scroll-cue { bottom: 4vh; gap: 1rem; }
  .scroll-cue-label { font-size: 1rem; }
  .scroll-cue-line { height: 42px; }
}