/* =========================================================
   ZB Digital · Niche landing pages
   (plastic-surgery.html, personal-injury.html)
   Builds on home.css. Adds: hero motion background, the
   pinned problem sequence, the revenue calculator with 3D
   columns, and the 3D reviews carousel.
   ========================================================= */

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------------------------------------------------------
   Hero motion background: slow drifting light over a grid
   floor that runs toward you. Transform-only (composited),
   paused off screen by niche.js, still for reduced motion.
   --------------------------------------------------------- */
.aurora {
  position: absolute;
  inset: -20% -10% -10% -10%;
  overflow: hidden;
  pointer-events: none;
}
.aurora > span {
  position: absolute;
  width: max(52vw, 440px); height: max(52vw, 440px);
  max-width: 900px; max-height: 900px;
  border-radius: 50%;
  will-change: transform;
}
.aurora > span:nth-child(1) {
  left: -6%; top: 2%;
  background: radial-gradient(circle, rgba(31, 95, 240, 0.34), transparent 62%);
  animation: aurora-a 26s ease-in-out infinite alternate;
}
.aurora > span:nth-child(2) {
  right: -10%; top: -8%;
  background: radial-gradient(circle, rgba(134, 172, 255, 0.18), transparent 62%);
  animation: aurora-b 32s ease-in-out infinite alternate;
}
.aurora > span:nth-child(3) {
  left: 30%; top: 38%;
  background: radial-gradient(circle, rgba(61, 123, 255, 0.2), transparent 62%);
  animation: aurora-c 38s ease-in-out infinite alternate;
}
@keyframes aurora-a { to { transform: translate(16vw, 8vh) scale(1.15); } }
@keyframes aurora-b { to { transform: translate(-14vw, 12vh) scale(1.25); } }
@keyframes aurora-c { to { transform: translate(-10vw, -10vh) scale(0.9); } }

.floor {
  position: absolute;
  left: -40%; right: -40%;
  bottom: 8%;
  height: 44%;
  perspective: 460px;
  perspective-origin: 50% 0%;
  -webkit-mask-image: linear-gradient(to top, #000 5%, transparent 85%);
  mask-image: linear-gradient(to top, #000 5%, transparent 85%);
  opacity: 0.5;
}
.floor i {
  position: absolute;
  inset: -64px 0 0 0;
  transform-origin: 50% 100%;
  transform: rotateX(66deg);
  background-image:
    linear-gradient(rgba(134, 172, 255, 0.2) 1px, transparent 1px),
    linear-gradient(90deg, rgba(134, 172, 255, 0.2) 1px, transparent 1px);
  background-size: 64px 64px;
  animation: floor-run 2.6s linear infinite;
  will-change: transform;
}
@keyframes floor-run { to { transform: rotateX(66deg) translateY(64px); } }

.aurora.is-paused > span,
.aurora.is-paused .floor i { animation-play-state: paused; }
@media (prefers-reduced-motion: reduce) {
  .aurora > span,
  .floor i { animation: none; }
}

/* ---------------------------------------------------------
   Problem sequence. Stacked lines by default (phones,
   reduced motion); pinned and played one at a time on desktop.
   --------------------------------------------------------- */
.pain { position: relative; padding-block: var(--section); overflow: clip; }
.pain::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(50% 60% at 20% 50%, rgba(61, 123, 255, 0.08), transparent 70%);
}
.pain-inner { position: relative; }
.pain-lines { display: grid; gap: clamp(28px, 4vw, 48px); }
.pain-line {
  max-width: 17ch;
  font-size: clamp(34px, 5.6vw, 84px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.045em;
  text-wrap: balance;
}
.pain-line span { color: var(--text-3); }
.pain-flip em { color: var(--accent); }
.pain.is-pinned { height: 100vh; min-height: 640px; padding-block: 0; display: flex; align-items: center; }
.pain.is-pinned .pain-inner { width: 100%; }
.pain.is-pinned .pain-lines { gap: 0; }
.pain.is-pinned .pain-line { grid-area: 1 / 1; }

/* ---------------------------------------------------------
   Revenue calculator
   --------------------------------------------------------- */
.calc { display: grid; gap: 20px; }
@media (min-width: 1024px) { .calc { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); } }
.calc-controls,
.calc-results {
  border-radius: var(--radius);
  padding: clamp(24px, 3vw, 40px);
  background: var(--surface);
  box-shadow: inset 0 0 0 1px var(--line-2);
}
.calc-results {
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(80% 60% at 80% 0%, rgba(61, 123, 255, 0.16), transparent 65%),
    var(--surface);
  box-shadow: inset 0 0 0 1px var(--accent-line);
}
.calc-field { display: grid; gap: 12px; padding: 20px 0; border-top: 1px solid var(--line); }
.calc-field:first-child { border-top: 0; padding-top: 0; }
.calc-field label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  font-size: 15px;
  color: var(--text-2);
}
.calc-field output {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.calc-help { font-size: 13px; color: var(--text-3); }

/* range slider: 44px hit area, filled track via --p */
.calc input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 44px;
  margin: 0;
  background: transparent;
  cursor: pointer;
  touch-action: pan-y;
}
.calc input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent) var(--p, 50%), rgba(237, 240, 246, 0.12) var(--p, 50%));
}
.calc input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent) var(--p, 50%), rgba(237, 240, 246, 0.12) var(--p, 50%));
}
.calc input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px; height: 24px;
  margin-top: -9px;
  border: 0;
  border-radius: 50%;
  background: #F2F5FB;
  box-shadow: 0 0 0 6px rgba(61, 123, 255, 0.22), 0 4px 12px rgba(0, 0, 0, 0.5);
  transition: transform 160ms var(--ease-out);
}
.calc input[type="range"]::-moz-range-thumb {
  width: 24px; height: 24px;
  border: 0;
  border-radius: 50%;
  background: #F2F5FB;
  box-shadow: 0 0 0 6px rgba(61, 123, 255, 0.22), 0 4px 12px rgba(0, 0, 0, 0.5);
}
.calc input[type="range"]:active::-webkit-slider-thumb { transform: scale(1.12); }
.calc input[type="range"]:focus { outline: none; }
.calc input[type="range"]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 3px var(--bg), 0 0 0 5px var(--accent-2); }
.calc input[type="range"]:focus-visible::-moz-range-thumb { box-shadow: 0 0 0 3px var(--bg), 0 0 0 5px var(--accent-2); }

.calc-money {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid var(--line-3);
}
.calc-money span { font-size: 28px; font-weight: 500; color: var(--text-2); }
.calc-money input {
  width: 100%;
  padding: 8px 0 10px;
  border: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.calc-money input:focus { outline: none; }
.calc-money::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 300ms var(--ease-out);
}
.calc-money:focus-within::after { transform: scaleX(1); }

.calc-kpis { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 20px; }
.kpi-k { font-size: 13px; color: var(--text-2); }
.kpi-v {
  margin-top: 6px;
  font-size: clamp(30px, 3.4vw, 46px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}
.kpi-hero .kpi-v { color: var(--accent-2); }
.kpi-sm { font-size: clamp(18px, 1.7vw, 22px); letter-spacing: -0.02em; line-height: 1.2; }
.kpi-accent { color: var(--accent-2); }
.calc-results .btn { margin-top: 28px; align-self: flex-start; }
@media (max-width: 559px) { .calc-results .btn { width: 100%; } }

/* 3D columns: real boxes (5 faces) grown with scaleY from the base */
.bars-scene {
  margin-top: 32px;
  height: 250px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  perspective: 1000px;
}
.bars-stage {
  display: flex;
  align-items: flex-end;
  gap: clamp(28px, 5vw, 56px);
  padding-bottom: 8px;
  transform-style: preserve-3d;
  transform: rotateX(-14deg) rotateY(-26deg);
}
.bar3d { display: flex; flex-direction: column; align-items: center; gap: 16px; transform-style: preserve-3d; }
.bar3d-col {
  --w: 54px;
  --front: rgba(237, 240, 246, 0.16);
  --side: rgba(237, 240, 246, 0.09);
  --top: rgba(237, 240, 246, 0.26);
  position: relative;
  width: var(--w);
  height: 180px;
  transform-style: preserve-3d;
  transform-origin: 50% 100%;
  transform: scaleY(0.001);
}
.fc { position: absolute; display: block; }
.f-front, .f-back { inset: 0; background: var(--front); }
.f-front { transform: translateZ(calc(var(--w) / 2)); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06); }
.f-back { transform: rotateY(180deg) translateZ(calc(var(--w) / 2)); }
.f-left, .f-right { top: 0; bottom: 0; left: 0; width: var(--w); background: var(--side); }
.f-right { transform: rotateY(90deg) translateZ(calc(var(--w) / 2)); }
.f-left { transform: rotateY(-90deg) translateZ(calc(var(--w) / 2)); }
.f-top { left: 0; top: calc(var(--w) / -2); width: var(--w); height: var(--w); background: var(--top); transform: rotateX(90deg); }
.b-revenue { --front: linear-gradient(180deg, #3D7BFF, #1F5FF0); --side: #1848BC; --top: #7EA6FF; }
.b-net { --front: linear-gradient(180deg, rgba(134, 172, 255, 0.7), rgba(134, 172, 255, 0.35)); --side: rgba(90, 130, 220, 0.45); --top: rgba(190, 210, 255, 0.8); }
.bar3d-lbl { font-size: 12.5px; color: var(--text-2); white-space: nowrap; }
@media (max-width: 479px) {
  .bar3d-col { --w: 44px; height: 150px; }
  .bars-scene { height: 220px; }
}

/* ---------------------------------------------------------
   Reviews: scroll-snap carousel, cards turn in 3D where
   scroll-driven animations are supported (flat elsewhere)
   --------------------------------------------------------- */
.reviews { overflow-x: clip; }
.rev-top {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px 40px;
  margin-bottom: clamp(32px, 4vw, 48px);
}
.rev-top .head { margin-bottom: 0; }
.reviews-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: min(420px, 82vw);
  gap: 20px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  perspective: 1200px;
  padding: 16px max(var(--gutter), calc((100vw - var(--container)) / 2 + var(--gutter))) 32px;
  scroll-padding-inline: max(var(--gutter), calc((100vw - var(--container)) / 2 + var(--gutter)));
  outline: none;
}
.reviews-track::-webkit-scrollbar { display: none; }
.reviews-track:focus-visible { box-shadow: inset 0 0 0 2px var(--accent-2); border-radius: var(--radius); }
.review {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  min-height: 300px;
  margin: 0;
  padding: clamp(24px, 3vw, 32px);
  border-radius: var(--radius);
  background:
    radial-gradient(90% 70% at 100% 0%, rgba(61, 123, 255, 0.12), transparent 60%),
    var(--surface);
  box-shadow: inset 0 0 0 1px var(--line-2), 0 30px 60px -40px rgba(0, 0, 0, 0.9);
}
/* marks cards that still need a real review before launch */
.review[data-placeholder] { box-shadow: inset 0 0 0 1px var(--line-3); outline: 1px dashed rgba(134, 172, 255, 0.45); outline-offset: -8px; }
.review blockquote { margin: 0; flex: 1; }
.review blockquote p { font-size: 18px; font-weight: 500; line-height: 1.5; letter-spacing: -0.01em; }
.review figcaption { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; align-items: center; gap: 12px; }
.review-avatar {
  flex-shrink: 0;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2A3550, #161C2A);
  box-shadow: inset 0 0 0 1px var(--line-2);
}
.review-name { display: block; font-size: 15px; font-weight: 600; }
.review-role { display: block; margin-top: 2px; font-size: 13px; color: var(--text-2); }

/* the first card plays the client story in the hero:
   poster on top (its own title text stays clear of ours), caption below */
.review-video {
  position: relative;
  padding: 0;
  overflow: hidden;
  border: 0;
  font: inherit;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}
.review-video img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-bottom: 1px solid var(--line);
}
.review-video .rv-body { flex: 1; align-content: end; }
.rv-play {
  position: absolute;
  left: clamp(24px, 3vw, 32px); top: clamp(24px, 3vw, 32px);
  z-index: 1;
  display: grid;
  place-items: center;
  width: 56px; height: 56px;
  border-radius: 999px;
  background: rgba(247, 249, 255, 0.94);
  color: var(--bg);
  transition: transform 160ms var(--ease-out);
}
.rv-play .i { font-size: 18px; transform: translateX(2px); }
.rv-body { position: relative; z-index: 1; display: grid; gap: 8px; padding: clamp(24px, 3vw, 32px); }
.rv-k { font-size: 13px; font-weight: 500; color: var(--accent-2); }
.rv-t { font-size: 21px; font-weight: 600; line-height: 1.3; letter-spacing: -0.02em; }
.review-video:active .rv-play { transform: scale(0.95); }
.review-video:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; }
@media (hover: hover) and (pointer: fine) {
  .review-video:hover .rv-play { transform: scale(1.06); }
}

@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .review {
      animation: review-turn linear both;
      animation-timeline: view(inline);
    }
    @keyframes review-turn {
      0% { transform: rotateY(24deg) scale(0.92); opacity: 0.5; }
      35%, 65% { transform: none; opacity: 1; }
      100% { transform: rotateY(-24deg) scale(0.92); opacity: 0.5; }
    }
  }
}
.rev-nav { display: flex; gap: 10px; }
.rev-btn {
  display: grid;
  place-items: center;
  width: 48px; height: 48px;
  border-radius: 999px;
  color: var(--text);
  background: rgba(237, 240, 246, 0.04);
  box-shadow: inset 0 0 0 1px var(--line-2);
  transition: transform 160ms var(--ease-out), background-color 200ms ease;
}
.rev-btn .i { font-size: 16px; }
.rev-btn[data-rev="prev"] .i { transform: rotate(180deg); }
.rev-btn:active { transform: scale(0.95); }
@media (hover: hover) and (pointer: fine) { .rev-btn:hover { background: rgba(237, 240, 246, 0.08); } }

/* ---------------------------------------------------------
   Finale single button
   --------------------------------------------------------- */
.finale-cta { margin-top: 40px; display: flex; justify-content: center; }