/* Scroll canvas shell (mini curtainTrack parity) — smart-curtains.php */
.sequence-track {
  height: 100vh;
  position: relative;
}

.sequence-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  width: 100%;
  overflow: hidden;
  display: grid;
  place-items: center;
  background: #000;
}

#curtainTrack {
  position: relative;
  height: 760vh;
}

#curtainTrack .sequence-sticky::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(circle at 18% 20%, rgba(158, 255, 199, 0.14), transparent 28%),
    radial-gradient(circle at 82% 78%, rgba(65, 134, 110, 0.18), transparent 32%),
    linear-gradient(
      to top,
      rgba(0, 0, 0, 0.9) 0%,
      rgba(0, 0, 0, 0.58) 30%,
      rgba(0, 0, 0, 0.26) 55%,
      rgba(0, 0, 0, 0.08) 76%,
      transparent 100%
    );
}

#curtainCanvas {
  position: relative;
  z-index: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.sequence-sticky::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  box-shadow: inset 0 0 120px rgba(0, 0, 0, 0.65);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

#curtainTrack .sequence-sticky::after {
  box-shadow: inset 0 0 56px rgba(0, 0, 0, 0.35);
  border-top: 1px solid rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid rgba(255, 255, 255, 0.02);
}

.curtain-scroll-ui {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  padding: clamp(20px, 4vw, 44px);
}

#curtainTrack .curtain-overlay {
  position: relative;
  z-index: 2;
  width: min(74rem, 92vw);
  max-width: 100%;
  text-align: center;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(12px, 1.8vh, 20px);
  padding: 0;
}

#curtainTrack .curtain-overlay .eyebrow {
  margin: 0;
  width: fit-content;
  color: #9effc7;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 0.72rem;
  font-weight: 700;
  text-shadow: 0 10px 28px rgba(0, 0, 0, 0.55);
}

#curtainTrack .curtain-overlay h2 {
  margin: 0;
  width: max-content;
  max-width: 100%;
  white-space: nowrap;
  font-family: "Playfair Display", serif;
  font-size: clamp(2rem, 4.25vw, 4rem);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: #f7fbff;
  text-shadow:
    0 18px 48px rgba(0, 0, 0, 0.55),
    0 0 30px rgba(158, 255, 199, 0.12);
}

#curtainTrack .curtain-overlay .curtain-sub {
  margin: 0;
  color: rgba(226, 235, 245, 0.94);
  font-size: clamp(0.94rem, 1.28vw, 1.08rem);
  line-height: 1.6;
  max-width: 70ch;
  text-wrap: balance;
  text-shadow: 0 12px 34px rgba(0, 0, 0, 0.56);
}

@keyframes curtain-icon-breathe {
  0%,
  100% {
    transform: translateY(0);
    box-shadow: 0 0 0 rgba(110, 192, 163, 0);
  }
  50% {
    transform: translateY(-3px);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
  }
}

@media (max-width: 1024px) {
  #curtainTrack {
    height: 520vh;
  }

  .curtain-scroll-ui {
    padding: 18px 20px;
  }

  #curtainTrack .curtain-overlay {
    width: min(48rem, 88vw);
    gap: 10px;
  }

  #curtainTrack .curtain-overlay .eyebrow {
    margin-bottom: 0;
    text-align: center;
  }

  #curtainTrack .curtain-overlay h2 {
    margin: 0;
    width: auto;
    max-width: 16ch;
    white-space: normal;
    text-align: center;
    font-size: clamp(1.62rem, 4.4vw, 2.55rem);
    line-height: 1.06;
  }

  #curtainTrack .curtain-overlay .curtain-sub {
    margin: 0;
    max-width: 40ch;
    text-align: center;
    font-size: clamp(0.84rem, 1.45vw, 0.96rem);
    line-height: 1.45;
  }

}

@media (max-width: 768px) {
  #curtainTrack {
    height: 340vh;
  }

  #curtainTrack .curtain-overlay .eyebrow,
  #curtainTrack .curtain-overlay .curtain-sub {
    display: none;
  }

  .curtain-scroll-ui {
    align-items: center;
    padding: 10px 12px;
  }

  #curtainTrack .curtain-overlay {
    width: min(92vw, 28rem);
    min-height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0;
  }

  #curtainTrack .curtain-overlay .eyebrow {
    margin: 0;
    font-size: 0.6rem;
    letter-spacing: 0.16em;
  }

  #curtainTrack .curtain-overlay h2 {
    margin: 0;
    width: auto;
    max-width: 35ch;
    white-space: normal;
    font-size: clamp(1.24rem, 5.9vw, 1.7rem);
    line-height: 1.06;
    letter-spacing: -0.03em;
  }

  #curtainTrack .curtain-overlay .curtain-sub {
    margin: 0;
    text-align: center;
    font-size: clamp(0.78rem, 2.85vw, 0.9rem);
    line-height: 1.34;
    max-width: 29ch;
  }

}

@media (max-width: 420px) {
  #curtainTrack {
    height: 320vh;
  }

  #curtainTrack .curtain-overlay {
    width: calc(100vw - 22px);
    gap: 3px;
  }

  #curtainTrack .curtain-overlay h2 {
    max-width: 30.5ch;
    font-size: clamp(1.08rem, 6.1vw, 1.34rem);
    text-align: center;
  }

  #curtainTrack .curtain-overlay .curtain-sub {
    max-width: 28ch;
    font-size: 0.74rem;
    line-height: 1.3;
    text-align: center;
  }
}