/* Platinum interactions: CursorBits / Skiper / Vengeance / Pine patterns
   Brand tokens via CSS vars already on :root. No purple glow. */

/* ── Soft product card language ─────────────────────────────────────── */
.px-card {
  border-radius: 16px;
  border: 1px solid color-mix(in srgb, var(--px-accent, var(--gold, #c89f5d)) 22%, transparent);
  background: var(--px-card-bg, rgba(255, 255, 255, 0.04));
  box-shadow: 0 4px 28px rgba(0, 0, 0, 0.08);
  transition:
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.35s ease,
    filter 0.45s ease;
}

/* CursorBits-style hover displacement */
.px-hover {
  position: relative;
  overflow: hidden;
  filter: saturate(0.82) contrast(0.98);
  will-change: transform, filter, box-shadow;
}
.px-hover:after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, transparent 40%, color-mix(in srgb, var(--px-accent, var(--gold, #c89f5d)) 12%, transparent));
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
@media (hover: hover) and (pointer: fine) {
  .px-hover:hover {
    transform: translateY(-6px) scale(1.03);
    filter: saturate(1) contrast(1);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
    border-color: color-mix(in srgb, var(--px-accent, var(--gold, #c89f5d)) 45%, transparent);
  }
  .px-hover:hover:after { opacity: 1; }
}

/* Image media inside hover cards */
.px-hover img,
.px-hover .px-media {
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1), filter 0.45s ease;
  filter: saturate(0.75);
}
@media (hover: hover) and (pointer: fine) {
  .px-hover:hover img,
  .px-hover:hover .px-media {
    transform: scale(1.04);
    filter: saturate(1);
  }
}

/* ── Animated tooltips: JS tip rail (CSS :before disabled to avoid doubles) ── */
[data-tip] { position: relative; }
[data-tip]:before,
[data-tip]:after { display: none !important; }

.px-tip-rail {
  position: fixed;
  z-index: 120;
  left: 0;
  top: 0;
  max-width: min(260px, calc(100vw - 24px));
  padding: 0.55rem 0.75rem;
  border-radius: 12px;
  background: var(--px-tip-bg, #0b1220);
  color: var(--px-tip-fg, #f4f1ea);
  font-size: 12.5px;
  font-weight: 500;
  line-height: 1.4;
  pointer-events: none;
  opacity: 0;
  transform: translate3d(-50%, calc(-100% - 12px), 0) scale(0.96);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4), 0 0 0 1px color-mix(in srgb, var(--px-accent, #c89f5d) 30%, transparent);
  transition: opacity 0.18s ease, transform 0.22s cubic-bezier(0.22, 1, 0.36, 1);
}
.px-tip-rail.is-on {
  opacity: 1;
  transform: translate3d(-50%, calc(-100% - 14px), 0) scale(1);
}
.px-tip-rail:after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--px-tip-bg, #0b1220);
}
.px-tip-rail[data-side="bottom"] {
  transform: translate3d(-50%, 12px, 0) scale(0.96);
}
.px-tip-rail[data-side="bottom"].is-on {
  transform: translate3d(-50%, 14px, 0) scale(1);
}
.px-tip-rail[data-side="bottom"]:after {
  top: auto;
  bottom: 100%;
  border-top-color: transparent;
  border-bottom-color: var(--px-tip-bg, #0b1220);
}

/* ── Sticky scroll stack (Pine Labs signature) ──────────────────────── */
.px-stack {
  position: relative;
  padding: clamp(3rem, 8vw, 5.5rem) 0;
}
.px-stack-head {
  max-width: 42rem;
  margin: 0 auto 2.5rem;
  padding: 0 1.25rem;
}
.px-stack-head h2 {
  margin: 0.35rem 0 0.75rem;
}
.px-stack-head p {
  margin: 0;
  opacity: 0.78;
  max-width: 36rem;
}
.px-stack-stage {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
  padding: 0 1.25rem;
  /* height set by JS: cards * sticky travel */
  min-height: 70vh;
}
.px-stack-pin {
  position: sticky;
  top: clamp(4.5rem, 12vh, 6.5rem);
  height: min(62vh, 520px);
  perspective: 1200px;
}
.px-stack-card {
  position: absolute;
  inset: 0;
  border-radius: 16px;
  border: 1px solid color-mix(in srgb, var(--px-accent, var(--gold, #c89f5d)) 28%, transparent);
  background:
    linear-gradient(165deg, color-mix(in srgb, var(--px-accent, var(--gold, #c89f5d)) 8%, transparent), transparent 42%),
    var(--px-stack-card-bg, #0f1a28);
  color: var(--px-stack-fg, #f3efe6);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
  padding: clamp(1.4rem, 3.5vw, 2.4rem);
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 1rem;
  transform-origin: center top;
  transition: box-shadow 0.35s ease;
  overflow: hidden;
}
.px-stack-card:before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 85% 0%, color-mix(in srgb, var(--px-accent, var(--gold, #c89f5d)) 18%, transparent), transparent 55%);
  pointer-events: none;
}
.px-stack-index {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.65;
  font-weight: 600;
}
.px-stack-card h3 {
  margin: 0;
  font-size: clamp(1.45rem, 3vw, 2rem);
  line-height: 1.15;
  position: relative;
}
.px-stack-card p {
  margin: 0;
  max-width: 34rem;
  line-height: 1.55;
  opacity: 0.82;
  position: relative;
}
.px-stack-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  position: relative;
}
.px-stack-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, currentColor 22%, transparent);
  font-size: 0.78rem;
  opacity: 0.9;
}
.px-stack-progress {
  position: absolute;
  left: 1.25rem;
  right: 1.25rem;
  bottom: 1.1rem;
  height: 2px;
  background: color-mix(in srgb, currentColor 14%, transparent);
  border-radius: 2px;
  overflow: hidden;
}
.px-stack-progress > i {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--px-accent, var(--gold, #c89f5d));
  transition: width 0.15s linear;
}

.px-stack-hint {
  margin: 0.75rem 0 0;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  opacity: 0.62;
}
.px-stack-pin.is-paused {
  outline: 1px solid color-mix(in srgb, var(--px-accent, #c89f5d) 45%, transparent);
  outline-offset: 6px;
  border-radius: 18px;
}
.px-stack-pin.is-paused:after {
  content: "Paused";
  position: absolute;
  top: 0.75rem;
  right: 0.9rem;
  z-index: 30;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.25rem 0.5rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--px-accent, #c89f5d) 85%, #000);
  color: #fff;
  pointer-events: none;
}
.px-stack-card {
  transition: box-shadow 0.35s ease;
  user-select: none;
}
.px-stack-card.is-active {
  box-shadow: 0 22px 56px rgba(0, 0, 0, 0.32);
}

@media (max-width: 760px) {
  .px-stack-stage {
    min-height: 0 !important;
    height: auto !important;
    display: grid;
    gap: 1rem;
  }
  .px-stack-pin {
    position: static;
    height: auto;
    perspective: none;
    display: grid;
    gap: 1rem;
  }
  .px-stack-card {
    position: relative !important;
    inset: auto !important;
    transform: none !important;
    opacity: 1 !important;
    height: auto;
    min-height: 0;
  }
  .px-stack-progress { display: none; }
  .px-stack-hint,
  .px-stack-pin.is-paused:after { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .px-hover,
  .px-hover img,
  .px-hover .px-media,
  [data-tip]:before,
  [data-tip]:after {
    transition: none !important;
  }
  .px-hover:hover { transform: none; }
  .px-stack-hint { display: none; }
}