/**
 * HealthN.E.S.S. — Growth System interactive sequence
 * Desktop: sticky one-stage theatre + scroll/tab activation
 * Mobile: full vertical story (no pinned sequence)
 */

.growth-system {
  --gs-panel-min: min(32rem, 70vh);
}

.growth-system__intro {
  text-align: center;
  max-width: 48rem;
  margin-inline: auto;
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}

/* --------------------------------------------------------------------------
 * Desktop theatre
 * ------------------------------------------------------------------------ */
.gs-desktop {
  display: none;
}

@media (min-width: 1024px) {
  .gs-desktop {
    display: block;
    position: relative;
  }

  .gs-desktop__pin {
    position: sticky;
    top: 5.75rem;
    z-index: 2;
    min-height: calc(100vh - 6.5rem);
    display: grid;
    grid-template-columns: 11rem minmax(0, 1.15fr) minmax(0, 0.95fr);
    gap: 1.75rem 2rem;
    align-items: stretch;
    padding-block: 1rem 1.5rem;
  }

  .gs-desktop__spacers {
    pointer-events: none;
  }

  .gs-desktop__spacer {
    height: 70vh;
  }

  .gs-desktop__spacer:last-child {
    height: 45vh;
  }
}

.gs-nav {
  position: relative;
  align-self: center;
  padding-left: 0.85rem;
}

.gs-stages__track {
  position: absolute;
  left: 0.2rem;
  top: 0.85rem;
  bottom: 0.85rem;
  width: 1px;
  background: rgba(153, 144, 124, 0.3);
}

.gs-stages__progress {
  position: absolute;
  left: 0;
  top: 0;
  width: 1px;
  height: 0%;
  background: linear-gradient(
    to bottom,
    var(--color-primary-container),
    var(--color-primary)
  );
  transform-origin: top center;
  transition: height 0.45s var(--ease-out-expo);
}

.gs-stages {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  position: relative;
}

.gs-stages::before {
  display: none;
}

.gs-stage-btn {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.2rem;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.75rem 0.65rem 0.75rem 1.15rem;
  color: var(--color-outline);
  transition:
    color var(--duration-base) var(--ease-standard),
    background-color var(--duration-base) var(--ease-standard);
}

.gs-stage-btn::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  border: 1px solid rgba(153, 144, 124, 0.55);
  background: var(--color-background);
  transform: translateY(-50%);
  transition:
    background-color var(--duration-base) var(--ease-standard),
    border-color var(--duration-base) var(--ease-standard),
    box-shadow var(--duration-base) var(--ease-standard);
}

.gs-stage-btn:hover,
.gs-stage-btn:focus-visible {
  color: var(--color-primary);
  outline: none;
}

.gs-stage-btn[aria-selected="true"] {
  color: var(--color-on-background);
}

.gs-stage-btn[aria-selected="true"]::before {
  background: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(242, 202, 80, 0.16);
}

.gs-stage-btn__num {
  font-family: var(--font-label);
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: inherit;
  opacity: 0.75;
}

.gs-stage-btn__title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.25;
}

/* Visual stage */
.gs-visual {
  position: relative;
  min-height: var(--gs-panel-min);
  border: 1px solid rgba(153, 144, 124, 0.22);
  background:
    radial-gradient(ellipse 70% 60% at 60% 40%, rgba(242, 202, 80, 0.07), transparent 60%),
    linear-gradient(160deg, #0c0f0e 0%, var(--color-surface-container-low) 100%);
  overflow: hidden;
}

.gs-visual__frame {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translate3d(0, 0.6rem, 0);
  transition:
    opacity 0.55s var(--ease-out-expo),
    transform 0.55s var(--ease-out-expo);
  pointer-events: none;
}

.gs-visual__frame.is-active {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  pointer-events: auto;
}

.gs-visual__media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gs-visual__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--media-placeholder-padding, 1.35rem 1.4rem);
  gap: var(--media-placeholder-gap, 0.4rem);
}

.gs-visual__placeholder::before {
  content: "";
  position: absolute;
  inset: 12% 14%;
  border: 1px solid rgba(153, 144, 124, 0.28);
  pointer-events: none;
}

.gs-visual__placeholder[data-type="device"]::before {
  inset: 14% 18% 18% 18%;
  border-radius: 0.35rem;
}

.gs-visual__placeholder[data-type="film"]::before {
  inset: 18% 10%;
}

.gs-visual__placeholder[data-type="journey"]::before {
  inset: 16% 12% 20% 12%;
  border-style: dashed;
}

.gs-visual__placeholder[data-type="ascend"]::before {
  inset: 14% 12%;
  box-shadow: inset 0 0 0 1px rgba(242, 202, 80, 0.12);
}

.gs-visual__placeholder-label {
  position: relative;
  font-family: var(--font-label);
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.gs-visual__placeholder-note {
  position: relative;
  max-width: 16rem;
  font-family: var(--font-body);
  font-size: var(--media-placeholder-note-size, 0.875rem);
  line-height: 1.45;
  color: var(--color-on-surface-variant);
}

.gs-visual__light {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    115deg,
    rgba(0, 0, 0, 0.35) 0%,
    transparent 45%,
    rgba(242, 202, 80, 0.05) 100%
  );
  opacity: 0.85;
  pointer-events: none;
  transition: opacity 0.5s var(--ease-standard);
}

/* Content panel */
.gs-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: var(--gs-panel-min);
  padding: 0.25rem 0 0.25rem 0.25rem;
}

.gs-panel__stage {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: 0;
  transform: translate3d(0, 0.75rem, 0);
  transition:
    opacity 0.5s var(--ease-out-expo),
    transform 0.5s var(--ease-out-expo);
  pointer-events: none;
}

.gs-panel__stage.is-active {
  position: relative;
  opacity: 1;
  transform: translate3d(0, 0, 0);
  pointer-events: auto;
}

.gs-panel__stage[hidden] {
  display: none !important;
}

.gs-panel__number {
  font-family: var(--font-label);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.85rem;
}

.gs-panel__title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 2vw, 2.25rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-on-background);
  margin: 0 0 1rem;
}

.gs-panel__message {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-on-surface-variant);
  margin: 0 0 0.85rem;
  max-width: 28rem;
}

.gs-panel__summary {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-outline);
  margin: 0 0 1.35rem;
  max-width: 28rem;
}

.gs-services {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.55rem;
}

.gs-services li {
  font-family: var(--font-label);
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-on-surface-variant);
  border: 1px solid rgba(153, 144, 124, 0.28);
  padding: 0.4rem 0.55rem;
}

.gs-panel__action {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 44px;
  font-family: var(--font-label);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 202, 80, 0.4);
  width: fit-content;
  padding-bottom: 0.25rem;
  transition:
    color var(--duration-base) var(--ease-standard),
    border-color var(--duration-base) var(--ease-standard);
}

.gs-panel__action:hover,
.gs-panel__action:focus-visible {
  color: var(--color-champagne-gold);
  border-color: var(--color-champagne-gold);
  outline: none;
}

/* --------------------------------------------------------------------------
 * Mobile vertical story
 * ------------------------------------------------------------------------ */
.gs-mobile {
  display: flex;
  flex-direction: column;
  gap: clamp(2.5rem, 8vw, 3.5rem);
}

@media (min-width: 1024px) {
  .gs-mobile {
    display: none;
  }
}

.gs-mobile__stage {
  display: grid;
  gap: 1.25rem;
}

.gs-mobile__visual {
  position: relative;
  aspect-ratio: 16 / 10;
  border: 1px solid rgba(153, 144, 124, 0.22);
  background:
    radial-gradient(ellipse 70% 55% at 50% 35%, rgba(242, 202, 80, 0.08), transparent 60%),
    var(--color-surface-container-low);
  overflow: hidden;
}

.gs-mobile__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.gs-mobile__visual .gs-visual__placeholder {
  inset: 0;
}

.gs-mobile__number {
  font-family: var(--font-label);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.gs-mobile__title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 6vw, 1.85rem);
  font-weight: 700;
  color: var(--color-on-background);
  margin: 0 0 0.75rem;
}

.gs-mobile__message {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-on-surface-variant);
  margin: 0 0 0.65rem;
}

.gs-mobile__summary {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-outline);
  margin: 0 0 1rem;
}

/* Closing */
.growth-system__close {
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
}

@media (prefers-reduced-motion: reduce) {
  .gs-visual__frame,
  .gs-panel__stage,
  .gs-stages__progress {
    transition: none !important;
  }

  .gs-visual__frame,
  .gs-panel__stage {
    transform: none !important;
  }

  @media (min-width: 1024px) {
    .gs-desktop__pin {
      position: relative;
      top: auto;
      min-height: 0;
    }

    .gs-desktop__spacers {
      display: none;
    }
  }
}