/* Web Kai — delight layer (no content/logo changes) */

:root {
  --wk-ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --wk-tilt-x: 0deg;
  --wk-tilt-y: 0deg;
  --wk-px: 50%;
  --wk-py: 50%;
}

/* Pointer aurora on bg layer (system cursor unchanged) */
.bg-world::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.45s ease;
  background: radial-gradient(
    240px circle at var(--wk-px, 50%) var(--wk-py, 50%),
    rgba(34, 245, 208, 0.08),
    transparent 58%
  );
}

html.wk-pointer-on .bg-world::before {
  opacity: 1;
}

/* No floating dots on bg (was distracting in service section) */
.bg-world::after {
  display: none !important;
  content: none !important;
}

/* Chapter transition scan */
html.wk-chapter-flash::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9997;
  pointer-events: none;
  background: linear-gradient(
    105deg,
    transparent 36%,
    rgba(34, 245, 208, 0.14) 48%,
    rgba(212, 255, 92, 0.1) 52%,
    transparent 64%
  );
  animation: wkChapterScan 0.72s var(--wk-ease-spring) forwards;
}

@keyframes wkChapterScan {
  0% {
    opacity: 0;
    transform: translate3d(-18%, 0, 0) skewX(-6deg);
  }
  35% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate3d(22%, 0, 0) skewX(-6deg);
  }
}

body.is-chapter-changing .scroll-dock {
  filter: drop-shadow(0 0 18px rgba(34, 245, 208, 0.45));
  transition: filter 0.35s ease;
}

/* Active section atmosphere */
.section.is-active .section-ambient {
  animation: wkAmbientPulse 9s ease-in-out infinite alternate;
}

@keyframes wkAmbientPulse {
  from {
    opacity: 0.72;
  }
  to {
    opacity: 1;
  }
}

/* Hero visual — no pointer parallax (performance) */

.section--hero.is-active .hero-visual__ring {
  animation-duration: 14s !important;
}

.section--hero.is-active .hero-visual__ring--b {
  animation-duration: 20s !important;
  animation-direction: reverse !important;
}

.section--hero.is-active .hero-visual__nodes i {
  animation: wkNodeBlink 2.4s ease-in-out infinite;
}

.section--hero.is-active .hero-visual__nodes i:nth-child(2) {
  animation-delay: 0.5s;
}

.section--hero.is-active .hero-visual__nodes i:nth-child(3) {
  animation-delay: 1s;
}

@keyframes wkNodeBlink {
  0%,
  100% {
    opacity: 0.35;
    transform: scale(0.85);
  }
  50% {
    opacity: 1;
    transform: scale(1.15);
    box-shadow: 0 0 12px rgba(34, 245, 208, 0.65);
  }
}

/* Logo gentle float (shape unchanged) */
.section--hero.is-active .brand-logo--hero {
  animation: wkLogoFloat 5s ease-in-out infinite alternate;
}

@keyframes wkLogoFloat {
  from {
    transform: translate3d(0, 0, 0);
    filter: drop-shadow(0 0 0 transparent);
  }
  to {
    transform: translate3d(0, -5px, 0);
    filter: drop-shadow(0 8px 20px rgba(34, 245, 208, 0.22));
  }
}

/* Title glow on reveal (not hero catchcopy) */
.section.is-active .mask-title.is-shown > span {
  transition:
    transform var(--dur-mask, 0.9s) var(--ease, ease),
    opacity 0.8s ease,
    text-shadow 0.9s var(--wk-ease-spring);
}

.section--hero.is-active .catchcopy .mask-title.is-shown > span {
  text-shadow: 0 0 22px rgba(34, 245, 208, 0.18);
}

.section.is-active:not(.section--hero) .mask-title.is-shown > span {
  text-shadow:
    0 0 24px rgba(34, 245, 208, 0.22),
    0 0 2px rgba(34, 245, 208, 0.12);
}

.section.is-active .section-label.ui-label {
  animation: wkLabelShimmer 3.6s ease-in-out infinite;
}

@keyframes wkLabelShimmer {
  0%,
  100% {
    opacity: 0.72;
    letter-spacing: 0.14em;
  }
  50% {
    opacity: 1;
    letter-spacing: 0.2em;
  }
}

/* Reveal bounce */
.section.is-active .reveal-item.is-shown:not(.service-menu__item) {
  animation: wkRevealPop 0.82s var(--wk-ease-spring) both;
}

@keyframes wkRevealPop {
  0% {
    opacity: 0;
    transform: translate3d(0, 28px, 0);
  }
  70% {
    opacity: 1;
    transform: translate3d(0, -4px, 0);
  }
  100% {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

/* Service menu stagger + hover */
.service-menu.is-shown .service-menu__item {
  animation: wkMenuItemIn 0.75s var(--wk-ease-spring) both;
}

.service-menu.is-shown .service-menu__item:nth-child(1) {
  animation-delay: 0.06s;
}

.service-menu.is-shown .service-menu__item:nth-child(2) {
  animation-delay: 0.14s;
}

.service-menu.is-shown .service-menu__item:nth-child(3) {
  animation-delay: 0.22s;
}

@keyframes wkMenuItemIn {
  from {
    opacity: 0;
    transform: translate3d(-16px, 0, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@media (hover: hover) {
  .service-menu__link {
    position: relative;
    overflow: hidden;
  }

  .service-menu__link::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: 3px;
    transform: scaleY(0);
    transform-origin: top;
    background: linear-gradient(180deg, rgba(34, 245, 208, 0.2), rgba(34, 245, 208, 0.95));
    transition: transform 0.4s var(--wk-ease-spring);
  }

  .service-menu__link:hover,
  .service-menu__link:focus-visible {
    transform: translate3d(6px, 0, 0);
    border-color: rgba(34, 245, 208, 0.38) !important;
    box-shadow:
      0 12px 32px rgba(0, 0, 0, 0.28),
      0 0 24px rgba(34, 245, 208, 0.12) !important;
  }

  .service-menu__link:hover::before,
  .service-menu__link:focus-visible::before {
    transform: scaleY(1);
  }

  .service-menu__link:hover .service-menu__arrow,
  .service-menu__link:focus-visible .service-menu__arrow {
    transform: translate3d(5px, 0, 0);
    opacity: 1;
  }
}

.service-menu__arrow {
  transition:
    transform 0.38s var(--wk-ease-spring),
    opacity 0.38s ease;
}

/* Cyber panel edge run */
.section.is-active .cyber-panel,
.section.is-active.section--service-intro .intro-copy {
  animation: wkPanelBorderPulse 6s ease-in-out infinite alternate;
}

.section.is-active .cyber-panel::after,
.section.is-active.section--service-intro .intro-copy::after {
  animation: wkPanelSheen 2.8s var(--wk-ease-spring) 0.35s forwards;
}

@keyframes wkPanelSheen {
  from {
    transform: translate3d(-120%, 0, 0);
  }
  to {
    transform: translate3d(240%, 0, 0);
  }
}

@keyframes wkPanelBorderPulse {
  from {
    box-shadow:
      0 16px 40px rgba(0, 0, 0, 0.35),
      inset 0 0 0 1px rgba(34, 245, 208, 0.1);
  }
  to {
    box-shadow:
      0 20px 48px rgba(0, 0, 0, 0.38),
      0 0 28px rgba(34, 245, 208, 0.08),
      inset 0 0 0 1px rgba(34, 245, 208, 0.22);
  }
}

/* Giant number entrance */
.section.is-entering .giant-number,
.section.is-active .giant-number {
  animation: wkGiantIn 1.15s var(--wk-ease-spring) both;
}

@keyframes wkGiantIn {
  from {
    opacity: 0;
    transform: translate3d(6%, 8%, 0) scale(1.06);
    filter: blur(10px);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
    filter: blur(0);
  }
}

/* Contact: no vertical beam / backdrop streaks */
body[data-section-theme="contact"] .bg-beam {
  opacity: 0 !important;
  visibility: hidden !important;
}

.section--contact .section-deco--beam,
.section--contact .section-deco--beam::before,
.section--contact .section-deco--beam::after {
  display: none !important;
  content: none !important;
  opacity: 0 !important;
}

.section--contact .section-glow,
.section--contact .section-flash {
  display: none !important;
  opacity: 0 !important;
}

.section--contact .section-ambient {
  opacity: 0.4 !important;
  animation: none !important;
  transform: none !important;
  background: radial-gradient(
    ellipse 90% 70% at 50% 42%,
    rgba(34, 245, 208, 0.05),
    transparent 72%
  ) !important;
}

.section--contact .contact-panel::after {
  display: none !important;
  content: none !important;
}

/* Contact panel — subtle edge only (no vertical sheen) */
.section--contact.is-active .contact-panel {
  animation: none;
}

.section--contact.is-active .contact-panel.reveal-item.is-shown {
  animation: wkRevealPop 0.82s var(--wk-ease-spring) both;
}

@keyframes wkContactGlow {
  from {
    box-shadow:
      0 20px 48px rgba(0, 0, 0, 0.28),
      inset 0 0 0 1px rgba(34, 245, 208, 0.12);
  }
  to {
    box-shadow:
      0 24px 52px rgba(0, 0, 0, 0.32),
      0 0 32px rgba(34, 245, 208, 0.1),
      inset 0 0 0 1px rgba(34, 245, 208, 0.26);
  }
}

.section--contact.is-active .contact-item {
  animation: wkContactLineIn 0.7s var(--wk-ease-spring) both;
}

.section--contact.is-active .contact-item:nth-child(1) {
  animation-delay: 0.45s;
}

.section--contact.is-active .contact-item:nth-child(2) {
  animation-delay: 0.58s;
}

@keyframes wkContactLineIn {
  from {
    opacity: 0;
    transform: translate3d(0, 12px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@media (hover: hover) {
  .section--contact .contact-link:hover,
  .section--contact .contact-link:focus-visible {
    color: var(--accent, #22f5d0) !important;
    text-shadow: 0 0 18px rgba(34, 245, 208, 0.35);
    transition:
      color 0.35s ease,
      text-shadow 0.35s ease;
  }
}

/* Header nav */
@media (hover: hover) {
  .site-nav a {
    position: relative;
  }

  .site-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -4px;
    height: 1px;
    transform: scaleX(0);
    transform-origin: left;
    background: linear-gradient(90deg, rgba(34, 245, 208, 0.2), rgba(34, 245, 208, 0.9));
    transition: transform 0.42s var(--wk-ease-spring);
  }

  .site-nav a:hover::after,
  .site-nav a:focus-visible::after {
    transform: scaleX(1);
  }
}

/* Loading logo pulse */
.loading-screen__mark {
  animation: wkLoadMarkPulse 2.2s ease-in-out infinite alternate;
}

@keyframes wkLoadMarkPulse {
  from {
    filter: drop-shadow(0 0 0 transparent);
  }
  to {
    filter: drop-shadow(0 0 22px rgba(34, 245, 208, 0.35));
  }
}

/* Flash enhancement */
.section-flash.is-run {
  animation: wkSectionFlash 0.55s ease-out forwards !important;
}

@keyframes wkSectionFlash {
  0% {
    opacity: 0;
  }
  30% {
    opacity: 0.85;
  }
  100% {
    opacity: 0;
  }
}

.wk-tap {
  animation: wkTapPulse 0.42s var(--wk-ease-spring) both;
}

@keyframes wkTapPulse {
  0% {
    transform: scale(1);
  }
  45% {
    transform: scale(0.94);
  }
  100% {
    transform: scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  html.wk-pointer-on .bg-world::before,
  .bg-world::after,
  html.wk-chapter-flash::before,
  .section.is-active .section-ambient,
  .section.is-active .section-glow,
  .section--hero.is-active .hero-visual__panel,
  .section--hero.is-active .brand-logo--hero,
  .section.is-active .mask-title.is-shown > span,
  .section.is-active .section-label.ui-label,
  .section.is-active .reveal-item.is-shown,
  .service-menu.is-shown .service-menu__item,
  .section.is-active .cyber-panel,
  .section.is-entering .giant-number,
  .section--contact.is-active .contact-panel,
  .section--contact.is-active .contact-item,
  .loading-screen__mark,
  .section-flash.is-run {
    animation: none !important;
    transition: none !important;
    transform: none !important;
    text-shadow: none !important;
    filter: none !important;
  }
}