.s-amplifier {
  background: #04081F; /* darker base so the image vignette reads */
}

/* Layer 1 — the user-supplied scene */
.s-amplifier .scene {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.s-amplifier image-slot.scene-slot {
  display: block;
  width: 100%;
  height: 100%;
}

/* Placeholder hint when no image dropped yet — auto-hides once
   the image-slot has filled (image-slot stamps [data-filled]). */
.s-amplifier .scene-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 26px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.18);
}
.s-amplifier image-slot[data-filled] ~ .scene-fallback,
.s-amplifier .scene:has(image-slot[data-filled]) .scene-fallback {
  display: none;
}

/* ============================================================
   Manual reveal — controlled by data-step on the active slide.
   Step 0 = image only.   Step 1 = scrim + chrome + cards + takeaway.
   See the keyboard handler at the bottom of the file.
   ============================================================ */
.s-amplifier .scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0;
  transition: opacity 700ms ease-out;
  /* Subtle atmospheric darken — cards do their own legibility work via
     backdrop-blur + tinted background, so the scrim only needs to take
     the overall image down a notch and feather the right edge under the
     takeaway. */
  background:
    linear-gradient(90deg, rgba(4,8,31,0.42) 0%, rgba(4,8,31,0.22) 45%, rgba(4,8,31,0.10) 70%, rgba(4,8,31,0.28) 100%);
}
.s-amplifier.bad .scrim {
  background:
    linear-gradient(90deg, rgba(20,4,12,0.42) 0%, rgba(15,4,10,0.22) 45%, rgba(10,4,8,0.10) 70%, rgba(8,4,6,0.28) 100%);
}
.s-amplifier.good .scrim {
  background:
    linear-gradient(90deg, rgba(4,18,12,0.42) 0%, rgba(4,16,12,0.22) 45%, rgba(4,14,12,0.10) 70%, rgba(4,12,12,0.28) 100%);
}

/* Layer 3 — content */
.s-amplifier .body {
  position: absolute;
  inset: 56px 0 56px 0;
  z-index: 2;
  padding: 60px var(--pad-x) 52px var(--pad-x);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Card stack */
.s-amplifier .cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  width: 880px;
  max-width: 50%;
}
.s-amplifier .card {
  display: grid;
  grid-template-columns: 56px 1fr;
  align-items: center;
  gap: 20px;
  padding: 12px 22px;
  background: rgba(8, 10, 28, 0.78);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow:
    0 14px 30px rgba(0,0,0,0.45),
    inset 0 1px 0 rgba(255,255,255,0.04);
}
.s-amplifier.bad  .card { border-color: rgba(240, 42, 90, 0.30); }
.s-amplifier.good .card { border-color: rgba(143, 215, 159, 0.30); }

.s-amplifier .card .icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.s-amplifier.bad .card .icon {
  background: rgba(240, 42, 90, 0.14);
  border: 1px solid rgba(240, 42, 90, 0.45);
  color: var(--amp-bad);
}
.s-amplifier.good .card .icon {
  background: rgba(143, 215, 159, 0.12);
  border: 1px solid rgba(143, 215, 159, 0.45);
  color: var(--amp-good);
}
.s-amplifier .card .icon svg {
  width: 26px;
  height: 26px;
  display: block;
}

.s-amplifier .card .txt {
  font-size: 26px;
  line-height: 1.25;
  color: var(--fg);
  font-weight: 500;
  letter-spacing: -0.005em;
  text-wrap: pretty;
}
.s-amplifier .card .txt strong { color: var(--fg); font-weight: 700; }
.s-amplifier.bad  .card .txt em { font-style: normal; color: var(--amp-bad); font-weight: 600; }
.s-amplifier.good .card .txt em { font-style: normal; color: var(--amp-good); font-weight: 600; }

/* Bottom-line tagline. Lifted clear of the bottom chrome so the longest
   bad-slide card ("Problems hidden for months… exposed in hours") can't
   crowd into the quote's horizontal lane. */
.s-amplifier .tag-line {
  position: absolute;
  right: var(--pad-x);
  bottom: 160px;
  z-index: 2;
  max-width: 780px;
  text-align: right;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 700ms ease-out, transform 700ms ease-out;
}
.s-amplifier .tag-line .lbl {
  font-family: 'JetBrains Mono', monospace;
  font-size: 26px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin-bottom: 14px;
}
.s-amplifier .tag-line .quote {
  font-size: 44px;
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.012em;
  color: var(--fg);
  text-wrap: balance;
}
.s-amplifier.bad  .tag-line .quote .hl { color: var(--amp-bad); }
.s-amplifier.good .tag-line .quote .hl { color: var(--amp-good); }

/* ============================================================
   Reveal states — step driven
   ============================================================ */
.s-amplifier .card {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease-out, transform 520ms ease-out;
}
.s-amplifier .chrome-top,
.s-amplifier .chrome-bottom {
  opacity: 0;
  transition: opacity 600ms ease-out;
}

/* Dark rail bars for legibility over the busy full-bleed scene.
   These give the chrome its own contrast bed without darkening the
   middle of the image where the cards live. backdrop-filter blurs
   whatever pixels sit underneath so even bright/painterly areas
   read cleanly. */
.s-amplifier .chrome-top {
  background: linear-gradient(
    to bottom,
    rgba(4, 8, 31, 0.78) 0%,
    rgba(4, 8, 31, 0.62) 70%,
    rgba(4, 8, 31, 0.00) 100%
  );
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.s-amplifier .chrome-bottom {
  background: linear-gradient(
    to top,
    rgba(4, 8, 31, 0.78) 0%,
    rgba(4, 8, 31, 0.62) 70%,
    rgba(4, 8, 31, 0.00) 100%
  );
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}
/* Lift chrome text a touch so it sits comfortably on the bar */
.s-amplifier .chrome-top,
.s-amplifier .chrome-bottom {
  color: rgba(230, 232, 244, 0.78);
}
.s-amplifier .chrome-bottom .brand-mark {
  color: rgba(245, 247, 255, 0.92);
}

/* Step 1 — scrim + chrome + cards (staggered) + takeaway */
.s-amplifier[data-step="1"] .scrim { opacity: 1; }
.s-amplifier[data-step="1"] .chrome-top,
.s-amplifier[data-step="1"] .chrome-bottom { opacity: 1; }
.s-amplifier[data-step="1"] .card {
  opacity: 1;
  transform: translateY(0);
}
.s-amplifier[data-step="1"] .card:nth-child(1) { transition-delay: 0ms; }
.s-amplifier[data-step="1"] .card:nth-child(2) { transition-delay: 120ms; }
.s-amplifier[data-step="1"] .card:nth-child(3) { transition-delay: 240ms; }
.s-amplifier[data-step="1"] .card:nth-child(4) { transition-delay: 360ms; }
.s-amplifier[data-step="1"] .card:nth-child(5) { transition-delay: 480ms; }
.s-amplifier[data-step="1"] .card:nth-child(6) { transition-delay: 600ms; }

/* Takeaway lands just after the last card finishes its stagger, so it
   reads as the "…therefore" answer to the cards rather than a parallel
   beat appearing mid-list. */
.s-amplifier[data-step="1"] .tag-line {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 720ms;
}

/* Reduced-motion: instant cut, no stagger or slide-in. */
@media (prefers-reduced-motion: reduce) {
  .s-amplifier .card,
  .s-amplifier .scrim,
  .s-amplifier .chrome-top,
  .s-amplifier .chrome-bottom,
  .s-amplifier .tag-line { transition: none; }
  .s-amplifier[data-step="1"] .card,
  .s-amplifier[data-step="1"] .tag-line { transition-delay: 0ms; }
}

/* (stencil pill removed — the images are explicit enough) */

/* Chromium's page.pdf() rasterises large-blur box-shadows as opaque
   rectangles. Drop the 30px lift on .card in PDF; the card border +
   tinted background still read as "lifted". */
@media print {
  .s-amplifier .card { box-shadow: inset 0 1px 0 rgba(255,255,255,0.04); }
}