/* ==========================================================================
   G Factor — The system stack
   Five planes in an isometric view: Datos · Reglas · Automatización ·
   Inteligencia · Interfaz. Driven by custom properties so the same markup
   serves the hero (assembled, floating) and the pinned section (built on scroll).
   ========================================================================== */

.stack {
  --rx: 58deg;
  --rz: -36deg;
  --gap: 56px;
  --depth: 0;
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 0.92;
  user-select: none;
}

.stack__scene {
  position: absolute;
  inset: 0;
  perspective: 2400px;
  perspective-origin: 50% 36%;
}

.stack__float {
  position: absolute;
  inset: 0;
  animation: stack-float 9s var(--ease-in-out) infinite;
}

@keyframes stack-float {
  50% {
    transform: translateY(-10px);
  }
}

.stack__world {
  position: absolute;
  left: 50%;
  top: 54%;
  width: 76%;
  aspect-ratio: 16 / 10;
  transform-style: preserve-3d;
  transform: translate(-50%, -50%) rotateX(var(--rx)) rotateZ(var(--rz));
  will-change: transform;
}

/* Ground: a soft shadow plus a measured grid, so the stack sits on something */
.stack__ground {
  position: absolute;
  inset: -22% -22%;
  border-radius: 30px;
  transform: translateZ(-34px);
  background:
    radial-gradient(closest-side, rgba(var(--glow-rgb), 0.38), transparent 78%),
    linear-gradient(to right, rgba(185, 175, 255, 0.1) 1px, transparent 1px) 0 0 / 38px 38px,
    linear-gradient(to bottom, rgba(185, 175, 255, 0.1) 1px, transparent 1px) 0 0 / 38px 38px;
  -webkit-mask-image: radial-gradient(closest-side, #000 40%, transparent 100%);
  mask-image: radial-gradient(closest-side, #000 40%, transparent 100%);
  pointer-events: none;
}

.plane {
  --q: 1;
  --act: 0;
  position: absolute;
  inset: 0;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid rgba(180, 169, 242, calc(0.22 + var(--act) * 0.5));
  background: linear-gradient(140deg, rgba(34, 31, 74, 0.94), rgba(14, 13, 32, 0.96));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 0 calc(10px + var(--act) * 50px) rgba(var(--glow-rgb), calc(0.12 + var(--act) * 0.5));
  opacity: calc(0.18 + var(--q) * 0.82);
  transform: translateZ(calc(var(--i) * var(--gap) + (1 - var(--q)) * 360px + var(--act) * 26px));
  transition: border-color 0.5s var(--ease), box-shadow 0.5s var(--ease);
}

.plane::before {
  /* hairline grid */
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right, rgba(185, 175, 255, 0.07) 1px, transparent 1px) 0 0 / 28px 28px,
    linear-gradient(to bottom, rgba(185, 175, 255, 0.07) 1px, transparent 1px) 0 0 / 28px 28px;
  pointer-events: none;
}

.plane__tag {
  position: absolute;
  left: 14px;
  top: 11px;
  z-index: 2;
  font-family: var(--mono);
  font-size: clamp(7px, 1.05vw, 11px);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--lav);
}

.plane__body {
  position: absolute;
  inset: 12% 5% 6%;
  display: grid;
}

/* --- L0 · Datos: a table with a scanning read head --- */
.p-data {
  display: grid;
  grid-template-rows: repeat(8, 1fr);
  gap: 5%;
}

.p-data .row {
  display: grid;
  grid-template-columns: 1.1fr 2fr 1.2fr 0.8fr;
  gap: 4%;
  align-items: center;
}

.p-data .row i {
  display: block;
  height: 38%;
  border-radius: 99px;
  background: rgba(185, 175, 255, 0.16);
}

.p-data .row:first-child i {
  background: rgba(185, 175, 255, 0.34);
}

.p-data .row i.hot {
  background: var(--violet-soft);
  box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.9);
}

.p-data::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 22%;
  background: linear-gradient(180deg, transparent, rgba(var(--glow-rgb), 0.34), transparent);
  animation: scan 4.8s linear infinite;
  pointer-events: none;
}

@keyframes scan {
  from {
    transform: translateY(-100%);
  }
  to {
    transform: translateY(520%);
  }
}

/* --- L1 · Reglas: a decision diagram --- */
.p-rules svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.p-rules text {
  font-family: var(--mono);
  font-size: 11px;
  fill: var(--text-2);
}

.p-rules .node {
  fill: rgba(143, 128, 255, 0.12);
  stroke: rgba(180, 169, 242, 0.55);
  stroke-width: 1;
}

.p-rules .node--key {
  fill: rgba(var(--glow-rgb), 0.4);
  stroke: var(--lav);
}

.p-rules .wire {
  fill: none;
  stroke: rgba(180, 169, 242, 0.5);
  stroke-width: 1.2;
  stroke-dasharray: 4 5;
  animation: dash 1.4s linear infinite;
}

@keyframes dash {
  to {
    stroke-dashoffset: -18;
  }
}

/* --- L2 · Automatización: tasks that complete themselves --- */
.p-auto {
  display: grid;
  grid-template-rows: repeat(5, 1fr);
  gap: 7%;
  align-content: center;
}

.p-auto .job {
  display: grid;
  grid-template-columns: 7% 1fr 14%;
  align-items: center;
  gap: 4%;
}

.p-auto .job i {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(180, 169, 242, 0.5);
  animation: job-dot 6s var(--ease-in-out) infinite;
  animation-delay: calc(var(--k) * 0.9s);
}

.p-auto .job b {
  position: relative;
  display: block;
  height: 34%;
  border-radius: 99px;
  background: rgba(185, 175, 255, 0.14);
  overflow: hidden;
}

.p-auto .job b::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--violet-hi), var(--lav));
  transform-origin: left;
  transform: scaleX(0);
  animation: job-fill 6s var(--ease-in-out) infinite;
  animation-delay: calc(var(--k) * 0.9s);
}

.p-auto .job span {
  font-family: var(--mono);
  font-size: clamp(6px, 0.85vw, 9px);
  color: var(--text-3);
  text-align: right;
}

@keyframes job-fill {
  0% {
    transform: scaleX(0);
  }
  25%,
  85% {
    transform: scaleX(1);
  }
  100% {
    transform: scaleX(1);
    opacity: 0;
  }
}

@keyframes job-dot {
  0%,
  22% {
    background: transparent;
  }
  30%,
  90% {
    background: var(--ok);
    border-color: var(--ok);
  }
  100% {
    background: transparent;
  }
}

/* --- L3 · Inteligencia: a chart --- */
.p-intel {
  grid-template-rows: auto 1fr;
  gap: 6%;
}

.p-intel .kpis {
  display: flex;
  gap: 6%;
}

.p-intel .kpis div {
  flex: 1;
  padding: 5% 6%;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
}

.p-intel .kpis small {
  display: block;
  font-family: var(--mono);
  font-size: clamp(6px, 0.8vw, 8px);
  color: var(--text-3);
}

.p-intel .kpis b {
  font-size: clamp(11px, 1.6vw, 17px);
  font-weight: 500;
  letter-spacing: -0.02em;
}

.p-intel .bars {
  display: flex;
  align-items: flex-end;
  gap: 3%;
}

.p-intel .bars i {
  flex: 1;
  height: calc(var(--h) * 100%);
  border-radius: 3px 3px 0 0;
  background: linear-gradient(180deg, var(--violet-soft), rgba(var(--glow-rgb), 0.25));
  transform-origin: bottom;
  animation: bar 5s var(--ease-in-out) infinite;
  animation-delay: calc(var(--k) * 0.18s);
}

@keyframes bar {
  50% {
    transform: scaleY(0.72);
  }
}

/* --- L4 · Interfaz: the real thing --- */
.p-ui {
  position: absolute;
  inset: 0;
  background: #0c0b1c;
}

.plane--ui .plane__body {
  inset: 0;
}

.plane--ui .plane__tag {
  display: none;
}

.p-ui video,
.p-ui img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.plane--ui::before {
  display: none;
}

.plane--ui::after {
  /* glass sheen across the screen */
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(255, 255, 255, 0.14), transparent 32%);
  pointer-events: none;
}

/* The pinned section builds the stack layer by layer: nothing ghosts in early. */
.stack--layers .plane {
  opacity: var(--q);
}

.stack--layers .stack__float {
  animation-duration: 12s;
}

/* ---------- Hero placement ---------- */
.stack--hero {
  margin-inline: auto;
}

@media (max-width: 899px) {
  .stack {
    --gap: 40px;
    aspect-ratio: 1 / 0.8;
  }

  .stack__world {
    width: 84%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .stack__float,
  .p-data::after,
  .p-rules .wire,
  .p-auto .job i,
  .p-auto .job b::after,
  .p-intel .bars i {
    animation: none;
  }

  .p-auto .job b::after {
    transform: scaleX(1);
  }
}