/* Workflow — fixed/pinned, white bg, black elements only, Apple Messages feel */

.workflow {
  position: relative;
  width: 100%;
  height: 700vh; /* 7 scenes × 1 viewport each — shorter so text isn't crushed */
  background: transparent; /* hero photo bg shows through */
  margin-top: clamp(40px, 6vw, 100px);
  color: #fff;
  font-family: "Inter", system-ui, sans-serif;
}

/* JS-driven pinning: absolute (before/after) ↔ fixed (during). Lenis smooth-scroll
   breaks position:sticky so we use this approach. To avoid the zoom-perception on
   class swap: NO will-change (no layer promotion dance), NO transform on the stage,
   and the frame's backdrop-filter is now permanent via transform: translate3d(0,0,0)
   so the GPU layer doesn't re-raster on the position change. */
.workflow-stage {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 2.5vh, 36px) clamp(20px, 3vw, 60px);
  background: transparent;
}
.workflow-stage.is-fixed {
  position: fixed;
  top: 0;
}
.workflow-stage.is-end {
  position: absolute;
  top: auto;
  bottom: 0;
}

/* Glass frame — frosted, no drop-shadow. translate3d forces a permanent GPU layer
   so the backdrop-filter doesn't re-raster when the parent stage swaps absolute↔fixed
   (which previously caused a perceptible "zoom" on scroll-lock). */
.workflow-frame {
  width: 100%;
  max-width: 1280px;
  height: 100%;
  max-height: 92vh;
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  background: transparent;
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  backdrop-filter: blur(20px) saturate(140%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: none;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(12px, 2vh, 28px);
  transform: translate3d(0, 0, 0);
}

.workflow-svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* HUD — minimal, Apple-quiet */
.wf-hud-top {
  position: absolute;
  top: clamp(20px, 3vh, 32px);
  left: clamp(20px, 3vw, 36px);
  right: clamp(20px, 3vw, 36px);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #000;
  z-index: 2;
}
.wf-hud-top .left {
  display: inline-flex;
  gap: 10px;
  align-items: baseline;
}
.wf-hud-top .step {
  color: #000;
}
.wf-hud-top .right {
  color: rgba(0, 0, 0, 0.45);
}

/* Progress dot row instead of a bar — more iOS */
.wf-progress {
  position: absolute;
  bottom: clamp(28px, 4vh, 56px);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 2;
}
.wf-progress span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.18);
  transition:
    background 0.25s ease,
    transform 0.25s ease;
}
.wf-progress span.active {
  background: #10b981;
  transform: scale(1.4);
}

.wf-caption {
  position: absolute;
  bottom: clamp(60px, 8vh, 100px);
  left: 50%;
  transform: translateX(-50%);
  font-size: clamp(14px, 1.3vw, 17px);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: rgba(0, 0, 0, 0.65);
  text-align: center;
  max-width: 80%;
  z-index: 2;
  pointer-events: none;
}

/* Scenes hard-toggle — no CSS transition so JS-driven opacity = exact display */
.wf-scene {
  transition: none;
}

/* Subtle dotted floor (very faint, only suggests space) */
.wf-grid {
  display: none;
}