/* ============================================================
   GRULLA ESTUDIO — Grulla es para vos (S03)

   Scroll-driver architecture:
   · .gpv              → height: 280vh  (espacio de scroll — 180vh recorrido útil)
   · .gpv__sticky      → position: sticky; top: 0; height: 100vh  (lo que ve el usuario)
   · .gpv__right       → columna derecha con íconos + paneles superpuestos
   · JS calcula progress 0→1: crossfade 30%→55%, dwell stats 55%→100%
   ============================================================ */


/* ------------------------------------------------------------
   Sección — 280vh da más tiempo de lectura en el segundo panel
   ------------------------------------------------------------ */

.gpv {
  position: relative;
  height: 280vh;
}


/* ------------------------------------------------------------
   Sticky viewport
   ------------------------------------------------------------ */

.gpv__sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
  background: var(--color-charcoal);
  display: flex;
  align-items: center;
}


/* ------------------------------------------------------------
   Grid interior: left 5fr | right 7fr
   ------------------------------------------------------------ */

.gpv__inner {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  width: 100%;
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: clamp(2rem, 4vw, 5rem);
  align-items: center;
}


/* ------------------------------------------------------------
   Columna izquierda
   ------------------------------------------------------------ */

.gpv__left {
  position: relative;
  z-index: 2;
}

.gpv__overline {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.70);
  line-height: 1.5;
  margin-bottom: var(--sp-6);
}

.gpv__headline {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 7.5vw, 6.5rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 0.92;
  letter-spacing: -0.03em;
  margin-bottom: var(--sp-10);
}

.gpv__headline mark {
  background: none;
  color: var(--color-lime);
}


/* ------------------------------------------------------------
   Columna derecha — contiene íconos + paneles
   ------------------------------------------------------------ */

.gpv__right {
  position: relative;
  overflow: visible;
  min-height: clamp(360px, 55vh, 500px);
  /* stacking context: íconos z:1, paneles z:2, todo queda DENTRO del right */
  isolation: isolate;
}


/* ------------------------------------------------------------
   Íconos decorativos — dentro de la columna derecha, como decoración de fondo
   ------------------------------------------------------------ */

.gpv__icons-area {
  position: absolute;
  inset: 0;
  pointer-events: none;
  user-select: none;
  overflow: visible;
  z-index: 1;
}

.gpv__icon { position: absolute; }

/* Grande, arriba-derecha — desplazado para no pisar el primer stat */
.gpv__icon--top {
  top: -22%;
  right: -8%;
  width: clamp(110px, 14vw, 190px);
  opacity: 0.65;
}

/* Mediano, abajo-derecha — desplazado para no pisar el tercer stat */
.gpv__icon--bottom {
  bottom: -18%;
  right: 4%;
  width: clamp(75px, 9vw, 130px);
  opacity: 0.55;
}


/* ------------------------------------------------------------
   Paneles — superpuestos, centrados verticalmente en .gpv__right
   Ambos absolute + JS controla opacidad para el crossfade
   ------------------------------------------------------------ */

.gpv__panels {
  position: absolute;
  /* Empuja los paneles al 35% derecho de la columna, dando espacio a los íconos */
  left: 35%;
  right: 0;
  top: 0;
  bottom: 0;
  z-index: 2;
  pointer-events: none;
}

.gpv__panel {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
  will-change: opacity;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.gpv__panel--stats {
  opacity: 0;
}

.gpv__panel--list {
  opacity: 1;
  pointer-events: auto;
}


/* ------------------------------------------------------------
   Panel A — Stats con barras de progreso
   ------------------------------------------------------------ */

.gpv__stat {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.gpv__stat-line {
  display: flex;
  flex-direction: column;
  gap: 0.3em;
}

.gpv__stat-num {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.2vw, 2.75rem);
  font-weight: 700;
  color: var(--color-lime);
  line-height: 1;
  letter-spacing: -0.02em;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.55);
}

.gpv__stat-label {
  font-family: var(--font-body);
  font-size: clamp(0.8125rem, 1.05vw, 0.9375rem);
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.45;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.65);
}

.gpv__stat-context {
  display: block;
  font-family: var(--font-body);
  font-size: clamp(0.72rem, 0.85vw, 0.8125rem);
  color: rgba(255, 255, 255, 0.52);
  font-style: italic;
  letter-spacing: 0.01em;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.55);
}

.gpv__stat-divider {
  display: block;
  width: 100%;
  height: 1px;
  background: rgba(255, 255, 255, 0.12);
  margin-top: var(--sp-3);
}


/* ------------------------------------------------------------
   Panel B — Lista numerada
   ------------------------------------------------------------ */

.gpv__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
  counter-reset: gpv-counter;
}

.gpv__list-item {
  counter-increment: gpv-counter;
  display: flex;
  align-items: flex-start;
  gap: var(--sp-5);
  font-family: var(--font-body);
  font-size: clamp(0.875rem, 1.15vw, 1rem);
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.55;
}

.gpv__list-item::before {
  content: counter(gpv-counter);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-lime);
  min-width: 1.2em;
  flex-shrink: 0;
  padding-top: 0.2em;
}


/* ------------------------------------------------------------
   Tabs — ocultos en desktop
   ------------------------------------------------------------ */

.gpv__tabs {
  display: none;
}


/* ------------------------------------------------------------
   Tablet (768–1023px)
   ------------------------------------------------------------ */

@media (min-width: 768px) and (max-width: 1023px) {
  .gpv__inner {
    grid-template-columns: 1fr 1.4fr;
    gap: var(--sp-8);
  }

  .gpv__headline {
    font-size: clamp(3rem, 7vw, 5rem);
  }

  .gpv__panels {
    left: 22%;
  }
}


/* ------------------------------------------------------------
   Indicador de progreso de scroll
   Barra vertical sutil en el borde derecho del sticky viewport
   ------------------------------------------------------------ */

.gpv__scroll-indicator {
  position: absolute;
  right: clamp(1rem, 2.5vw, 2rem);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  z-index: 10;
}

.gpv__scroll-track {
  width: 2px;
  height: 72px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 1px;
  overflow: hidden;
  position: relative;
}

.gpv__scroll-fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: var(--color-lime);
  border-radius: 1px;
  transition: height 0.1s linear;
}

.gpv__scroll-arrow {
  width: 6px;
  height: 6px;
  border-right: 1.5px solid rgba(255, 255, 255, 0.25);
  border-bottom: 1.5px solid rgba(255, 255, 255, 0.25);
  transform: rotate(45deg);
  animation: gpv-bounce 1.6s ease-in-out infinite;
}

@keyframes gpv-bounce {
  0%, 100% { transform: rotate(45deg) translateY(0);   opacity: 0.4; }
  50%       { transform: rotate(45deg) translateY(3px); opacity: 1;   }
}

@media (prefers-reduced-motion: reduce) {
  .gpv__scroll-arrow { animation: none; opacity: 0.4; }
}


/* ------------------------------------------------------------
   Mobile (<768px) — sin sticky, sin 280vh, tabs para paneles
   ------------------------------------------------------------ */

@media (max-width: 767px) {

  .gpv__scroll-indicator { display: none; }

  /* Revertir el mecanismo de scroll a layout normal */
  .gpv {
    height: auto;
  }

  .gpv__sticky {
    position: static;
    height: auto;
    overflow: visible;
    padding: var(--sp-14) 0 var(--sp-10);
    display: block;
  }

  .gpv__inner {
    grid-template-columns: 1fr;
    gap: var(--sp-10);
  }

  .gpv__headline {
    font-size: clamp(3rem, 14vw, 4.5rem);
  }

  /* Ocultar íconos — demasiado ruido visual en mobile */
  .gpv__icons-area {
    display: none;
  }

  /* Right column: columna flex para poder reordenar tabs/panels */
  .gpv__right {
    position: static;
    min-height: auto;
    overflow: visible;
    display: flex;
    flex-direction: column;
  }

  .gpv__tabs {
    order: -1;
    display: flex;
    gap: var(--sp-2);
    margin-bottom: var(--sp-7);
  }

  .gpv__tab {
    flex: 1;
    padding: var(--sp-2) var(--sp-3);
    border: 1px solid rgba(255, 255, 255, 0.20);
    border-radius: 100px;
    background: transparent;
    color: rgba(255, 255, 255, 0.65);
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
  }

  .gpv__tab--active {
    background: var(--color-lime);
    border-color: var(--color-lime);
    color: var(--color-black);
  }

  /* Panels: flujo normal en mobile, tabs controlan visibilidad */
  .gpv__panels {
    position: static;
    top: auto;
    bottom: auto;
    left: auto;
    right: auto;
  }

  .gpv__panel {
    position: static;
    transform: none;
    opacity: 1 !important;
    pointer-events: auto !important;
    gap: var(--sp-7);
    transition: none;
    display: none; /* oculto por default, --active lo muestra */
  }

  /* --active controla visibilidad en mobile (JS la pone/saca) */
  .gpv__panel.gpv__panel--active {
    display: flex;
  }

  .gpv__stat-num {
    font-size: clamp(1.75rem, 8vw, 2.5rem);
  }

  .gpv__stat-line {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2em;
  }

  .gpv__stat-label {
    font-size: clamp(0.875rem, 3.5vw, 1rem);
  }

  .gpv__list-item {
    font-size: clamp(0.9375rem, 4vw, 1.0625rem);
  }

}