/* ── Scroll reveal ── */
[data-reveal] {
  opacity: 0;
  transform: translateY(36px);
  transition:
    opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: calc(var(--i, 0) * 0.09s);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

[data-reveal="left"] {
  transform: translateX(-40px);
}

[data-reveal="right"] {
  transform: translateX(40px);
}

[data-reveal="scale"] {
  transform: scale(0.92);
}

[data-reveal="left"].is-visible,
[data-reveal="right"].is-visible,
[data-reveal="scale"].is-visible {
  transform: none;
}

/* ── Hero entrance (page load) ── */
.hero__block {
  opacity: 0;
  transform: scale(0.97) translateY(20px);
  transition:
    opacity 1s cubic-bezier(0.22, 1, 0.36, 1),
    transform 1s cubic-bezier(0.22, 1, 0.36, 1);
}

.page-loaded .hero__block {
  opacity: 1;
  transform: none;
}

.pixel-title__block {
  opacity: 0;
  transform: translateX(-24px);
  transition:
    opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.page-loaded .pixel-title__block:nth-child(1) {
  opacity: 1;
  transform: none;
  transition-delay: 0.25s;
}

.page-loaded .pixel-title__block:nth-child(2) {
  opacity: 1;
  transform: none;
  transition-delay: 0.45s;
}

.hero__subtitle,
.hero-badges,
.hero__actions {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}

.page-loaded .hero__subtitle {
  opacity: 1;
  transform: none;
  transition-delay: 0.65s;
}

.page-loaded .hero-badges {
  opacity: 1;
  transform: none;
  transition-delay: 0.8s;
}

.page-loaded .hero__actions {
  opacity: 1;
  transform: none;
  transition-delay: 0.95s;
}

.hero-badge {
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s ease;
}

@media (hover: hover) {
  .hero-badge:hover {
    transform: translateY(-4px) scale(1.04);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  }
}

.hero__image {
  opacity: 0;
  transform: translateX(48px);
  transition:
    opacity 1s cubic-bezier(0.22, 1, 0.36, 1),
    transform 1s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}

.page-loaded .hero__image {
  opacity: 1;
  transform: translateX(0);
  transition-delay: 0.5s;
}

/* Pixel shimmer */
.pixel-title__block {
  position: relative;
  overflow: hidden;
}

.pixel-title__block::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    transparent 35%,
    rgba(255, 255, 255, 0.18) 50%,
    transparent 65%
  );
  transform: translateX(-120%);
  animation: shimmer 4s ease-in-out infinite;
  animation-delay: 1.2s;
}

@keyframes shimmer {
  0%,
  70% {
    transform: translateX(-120%);
  }
  100% {
    transform: translateX(120%);
  }
}

/* ── Animated binary background ── */
.binary-bg {
  animation: binary-drift 28s linear infinite;
}

@keyframes binary-drift {
  from {
    background-position: 0 0;
  }
  to {
    background-position: 120px 48px;
  }
}

/* ── Hero decorative lines ── */
.hero__block::before {
  animation: line-pulse 3s ease-in-out infinite;
}

.hero__block::after {
  content: "";
  position: absolute;
  bottom: 15%;
  right: 8%;
  width: 80px;
  height: 80px;
  border: 2px solid rgba(168, 181, 160, 0.35);
  border-radius: 4px;
  transform: rotate(12deg);
  pointer-events: none;
  animation: line-float 6s ease-in-out infinite;
}

@keyframes line-pulse {
  0%,
  100% {
    border-color: rgba(168, 181, 160, 0.25);
    opacity: 0.6;
  }
  50% {
    border-color: rgba(168, 181, 160, 0.55);
    opacity: 1;
  }
}

@keyframes line-float {
  0%,
  100% {
    transform: rotate(12deg) translateY(0);
  }
  50% {
    transform: rotate(18deg) translateY(-10px);
  }
}

/* ── Nav interactions ── */
.site-header {
  transition:
    box-shadow 0.35s ease,
    background 0.35s ease,
    padding 0.35s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  background: rgba(255, 255, 255, 0.97);
  padding-block: 0.5rem;
}

.site-nav__logo img {
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.site-nav__logo:hover img {
  transform: scale(1.08) rotate(-3deg);
}

.site-nav__links a {
  position: relative;
  overflow: hidden;
}

.site-nav__links a::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-cta);
  transition: width 0.3s ease, left 0.3s ease;
}

.site-nav__links a:hover::after {
  width: 60%;
  left: 20%;
}

/* ── Audience header sweep ── */
.audience__header {
  position: relative;
  overflow: hidden;
}

.audience__header::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.08),
    transparent
  );
  transform: translateX(-100%);
  animation: header-sweep 5s ease-in-out infinite;
}

@keyframes header-sweep {
  0%,
  100% {
    transform: translateX(-100%);
  }
  50% {
    transform: translateX(100%);
  }
}

.listing-item {
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

@media (hover: hover) {
  .listing-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
  }
}

.listing-item__num {
  display: inline-block;
  transition: transform 0.35s ease, color 0.35s ease;
}

.listing-item:hover .listing-item__num {
  transform: scale(1.15);
  color: var(--color-bg-teal);
}

/* ── BIG DATA wow ── */
.works__center {
  filter: drop-shadow(0 0 28px rgba(168, 181, 160, 0.35));
}

.works__bigdata {
  background: linear-gradient(
    135deg,
    var(--color-accent-sage) 0%,
    #c5d4bc 40%,
    var(--color-accent-sage-l) 70%,
    var(--color-accent-sage) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: bigdata-gradient 6s ease infinite;
}

@keyframes bigdata-gradient {
  0%,
  100% {
    background-position: 0% center;
  }
  50% {
    background-position: 100% center;
  }
}

.works__center::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(380px, 80vw);
  height: min(380px, 80vw);
  border: 1.5px solid rgba(168, 181, 160, 0.38);
  border-radius: 50%;
  animation: ring-expand 3.5s ease-out infinite;
  pointer-events: none;
  box-shadow: 0 0 40px rgba(168, 181, 160, 0.2);
}

@keyframes ring-expand {
  0% {
    transform: translate(-50%, -50%) scale(0.6);
    opacity: 0.8;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.4);
    opacity: 0;
  }
}

.works__card {
  transition:
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.45s ease;
}

@media (hover: hover) {
  .works__card-wrap:hover .works__card {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18);
  }
}

.review-pill {
  transition:
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.4s ease;
}

@media (hover: hover) {
  .review-pill:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
  }
}

/* ── Outcome cards ── */
.outcome-card {
  transition:
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.4s ease;
}

@media (hover: hover) {
  .outcome-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
  }
}

.outcomes__plus {
  animation: plus-spin 8s linear infinite;
}

@keyframes plus-spin {
  0%,
  90% {
    transform: rotate(0deg);
  }
  95% {
    transform: rotate(90deg);
  }
  100% {
    transform: rotate(0deg);
  }
}

.outcomes__globe {
  animation: globe-spin 30s linear infinite;
  transform-origin: center;
}

@keyframes globe-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* ── Module cards 3D tilt ── */
.module-card {
  transform-style: preserve-3d;
  perspective: 800px;
}

@media (hover: hover) {
  .module-card:hover {
    transform: scale(1.02) rotateX(2deg) rotateY(-2deg);
  }
}

.program-tabs label {
  transition:
    background 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    color 0.35s ease,
    transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.35s ease;
}

.program-tabs label:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.program-track {
  animation: track-fade 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes track-fade {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ── Instructor photo ring ── */
.instructor__photo-wrap::before {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid transparent;
  background: linear-gradient(135deg, var(--color-accent-sage), var(--color-cta), var(--color-accent-sage)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: ring-rotate 6s linear infinite;
}

@keyframes ring-rotate {
  to {
    transform: rotate(360deg);
  }
}

/* ── FAQ ── */
.faq-item summary {
  transition:
    background 0.3s ease,
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.faq-item[open] summary {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.faq-item__answer {
  animation: answer-slide 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes answer-slide {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ── Contact CTA ── */
.contact__card {
  position: relative;
  overflow: hidden;
}

.contact__card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    135deg,
    transparent 30%,
    rgba(13, 79, 92, 0.45) 50%,
    transparent 70%
  );
  background-size: 300% 300%;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: border-glow 5s ease infinite;
  pointer-events: none;
}

@keyframes border-glow {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

.contact-form__submit {
  position: relative;
  overflow: hidden;
}

.contact-form__submit::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.25),
    transparent
  );
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}

.contact-form__submit:hover::before {
  transform: translateX(100%);
}

.contact-form__field input {
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease;
}

.contact-form__field input:focus {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--color-cta-soft);
}

/* ── Section titles ── */
.section-title {
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent-sage), var(--color-cta));
  border-radius: 2px;
  transition: width 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.section-title.is-visible::after,
.is-visible .section-title::after {
  width: 100%;
}

/* ── Stages shortcut glass pop ── */
.stages__shortcut {
  transition:
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.4s ease;
}

@media (hover: hover) {
  .stages__photo-wrap:hover .stages__shortcut {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
  }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero__block,
  .pixel-title__block,
  .hero__subtitle,
  .hero-badges,
  .hero__actions,
  .hero__image {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .pixel-title__block::after,
  .binary-bg,
  .audience__header::after,
  .works__bigdata,
  .works__center::after,
  .outcomes__plus,
  .outcomes__globe,
  .instructor__photo-wrap::before,
  .contact__card::before {
    animation: none;
  }
}