/* ===== Escena 3D fija + Hero ===== */
/*
  z-index: scene-3d 0 | main/footer 10 | nav 100
*/

.scene-3d {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.scene-3d__canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.scene-3d__glow {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 55% 45% at 50% 38%, rgba(0, 212, 255, 0.18), transparent 72%),
    radial-gradient(ellipse 90% 80% at 50% 100%, rgba(0, 212, 255, 0.06), transparent 55%);
}

/* Logos en video flotando (solo visibles en zona hero) */
.scene-3d__floaters {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: calc(1 - var(--hero-progress, 0) * 1.4);
  transition: opacity 0.25s ease;
}

.logo-floater {
  position: absolute;
  width: var(--size, 60px);
  line-height: 0;
  opacity: 0.5;
  mix-blend-mode: screen;
  filter: drop-shadow(0 0 20px rgba(0, 212, 255, 0.25));
  animation: logo-float var(--dur, 18s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
  will-change: transform;
}

.logo-floater__video {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
  -webkit-mask-image: radial-gradient(circle at 50% 45%, #000 55%, transparent 100%);
  mask-image: radial-gradient(circle at 50% 45%, #000 55%, transparent 100%);
}

.logo-floater--1 { top: 14%; left: 7%; }
.logo-floater--2 { top: 20%; right: 8%; animation-name: logo-float-alt; }
.logo-floater--3 { top: 62%; left: 5%; animation-name: logo-float-alt; }
.logo-floater--4 { top: 58%; right: 6%; }
.logo-floater--5 { top: 38%; left: 11%; animation-name: logo-float-drift; }
.logo-floater--6 { top: 32%; right: 12%; animation-name: logo-float-alt; }
.logo-floater--7 { bottom: 22%; left: 16%; }
.logo-floater--8 { bottom: 18%; right: 14%; animation-name: logo-float-drift; }

@keyframes logo-float {
  0%, 100% { transform: translate(0, 0) rotate(0deg) scale(1); }
  25% { transform: translate(8px, -14px) rotate(4deg) scale(1.04); }
  50% { transform: translate(-6px, -22px) rotate(-3deg) scale(0.96); }
  75% { transform: translate(10px, -10px) rotate(2deg) scale(1.02); }
}

@keyframes logo-float-alt {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(-12px, -18px) rotate(-5deg); }
  66% { transform: translate(8px, -8px) rotate(4deg); }
}

@keyframes logo-float-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(14px, 16px) scale(1.06); }
}

body.has-scene-3d .pcb-bg {
  opacity: 0.2;
}

.site-main {
  position: relative;
  z-index: 10;
}

.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__ui {
  position: relative;
  z-index: 2;
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 2rem) 1rem 4rem;
  --hero-progress: 0;
}

.hero__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  opacity: calc(1 - var(--hero-progress) * 1.2);
  transform: translateY(calc(var(--hero-progress) * -40px));
  transition: opacity 0.15s linear, transform 0.15s linear;
}

.hero__tagline {
  margin-top: 0;
  font-size: clamp(1.15rem, 2.8vw, 1.45rem);
  color: var(--text-muted);
  font-weight: 300;
  max-width: 420px;
  opacity: 0;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-top: 2.5rem;
  opacity: 0;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  opacity: calc(1 - var(--hero-progress) * 2);
  transition: opacity 0.15s linear;
}

.hero__tagline.reveal,
.hero__actions.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  transition-delay: calc(var(--delay, 0) * 1s);
}

.hero__tagline.reveal.is-visible,
.hero__actions.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Secciones: contenido legible sobre el fondo 3D */
body.has-scene-3d .section {
  background: transparent;
}

body.has-scene-3d .why {
  background: transparent;
}

body.has-scene-3d .contact {
  background: transparent;
}

body.has-scene-3d .section__header {
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-lg);
  background: rgba(10, 14, 39, 0.55);
  backdrop-filter: blur(10px);
}

body.has-scene-3d .service-card,
body.has-scene-3d .project-card,
body.has-scene-3d .contact__form {
  background: rgba(17, 22, 56, 0.72);
  backdrop-filter: blur(14px);
}

body.has-scene-3d .footer {
  position: relative;
  z-index: 10;
  background: rgba(10, 14, 39, 0.82);
  backdrop-filter: blur(16px);
}

body.has-scene-3d.hero--static .scene-3d {
  display: none;
}

body.has-scene-3d.hero--static .pcb-bg {
  opacity: 0.6;
}

@media (max-width: 768px) {
  .logo-floater--6,
  .logo-floater--7,
  .logo-floater--8 {
    display: none;
  }

  .logo-floater {
    opacity: 0.38;
  }
}

@media (prefers-reduced-motion: reduce) {
  .scene-3d__floaters {
    display: none;
  }

  .scene-3d {
    display: none;
  }

  body.has-scene-3d .pcb-bg {
    opacity: 0.6;
  }

  .hero__content {
    opacity: 1 !important;
    transform: none !important;
  }
}