/* =============================================================================
   AdStar landing — adstar-ai.css
   "AdStar AI, built for ad creatives" — 3D star with a glass segmented control.
   ========================================================================== */

.adstar-ai {
  background: var(--black);
  overflow: hidden;
}

.adstar-ai__container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

/* ---- Heading -------------------------------------------------------------- */
.adstar-ai__head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}

.adstar-ai__title {
  margin: 0;
  font-size: var(--fs-display-lg);
  line-height: var(--lh-display-lg);
  font-weight: 700;
  letter-spacing: -0.96px;
  color: var(--text-primary);
}

.adstar-ai__subtitle {
  margin: 0;
  max-width: 606px;
  font-size: var(--fs-sm);
  line-height: var(--lh-sm);
  color: var(--text-secondary);
}

/* ---- Stage (star + pill + panel) ----------------------------------------- */
.adstar-ai__stage {
  position: relative;
  width: 100%;
  max-width: var(--content-max);
  height: 540px;
}

/* The 3D star artwork, centred and clipped within the stage. */
.adstar-ai__star {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.adstar-ai__star img {
  width: 566px;
  max-width: 90%;
  height: auto;
  user-select: none;
}

/* ---- Segmented glass pill ------------------------------------------------- */
.adstar-ai__pill {
  position: absolute;
  left: 50%;
  top: 130px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 40px;
  height: 100px;
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  background: rgba(40, 40, 40, 0.85);
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
  box-shadow:
    0 40px 30px rgba(0, 0, 0, 0.7),
    inset 1px 1px 1px rgba(255, 255, 255, 0.25);
}

/* ---- Icon tab ------------------------------------------------------------- */
.adstar-ai__tab {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--gray-400);
  cursor: pointer;
  transition:
    background var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}
.adstar-ai__tab:hover {
  color: var(--text-primary);
}
.adstar-ai__tab:active {
  transform: scale(0.96);
}
.adstar-ai__tab.is-active {
  background: #4d4d4d;
  border-color: var(--black);
  color: var(--brand-500);
}

.adstar-ai__icon {
  display: block;
  width: 36px;
  height: 36px;
}
.adstar-ai__icon svg {
  display: block;
  width: 100%;
  height: 100%;
}

/* ---- Description panel ---------------------------------------------------- */
.adstar-ai__panel {
  position: absolute;
  left: 656px;
  top: 312.5px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 400px;
}
.adstar-ai__panel-title {
  margin: 0;
  font-size: var(--fs-lg);
  line-height: var(--lh-lg);
  font-weight: 700;
  color: var(--brand-500);
}
.adstar-ai__panel-body {
  margin: 0;
  font-size: var(--fs-md);
  line-height: var(--lh-md);
  color: var(--gray-200);
}

/* Fade the swapped copy when JS toggles it (skipped if reduced-motion). */
.adstar-ai__panel.is-swapping .adstar-ai__panel-title,
.adstar-ai__panel.is-swapping .adstar-ai__panel-body {
  opacity: 0;
}
.adstar-ai__panel-title,
.adstar-ai__panel-body {
  transition: opacity var(--dur-fast) var(--ease-out);
}

/* =============================================================================
   Tablet  (768–1024)
   ========================================================================== */
@media (max-width: 1024px) {
  .adstar-ai__stage {
    height: 520px;
  }
  .adstar-ai__star img {
    width: 480px;
  }
  .adstar-ai__pill {
    top: 120px;
    gap: 20px;
    height: 88px;
    padding: 8px 12px;
  }
  .adstar-ai__tab {
    width: 64px;
    height: 64px;
  }
  .adstar-ai__icon {
    width: 32px;
    height: 32px;
  }
  /* Pull the panel under the star and centre it within the stage. */
  .adstar-ai__panel {
    left: 50%;
    top: auto;
    bottom: 24px;
    transform: translateX(-50%);
    width: min(440px, 86%);
    align-items: center;
    text-align: center;
  }
}

/* =============================================================================
   Mobile  (<=767) — stacked, tabs still tappable
   ========================================================================== */
@media (max-width: 767px) {
  .adstar-ai__title {
    font-size: var(--fs-display-sm);
    line-height: var(--lh-display-sm);
    letter-spacing: -0.6px;
  }

  /* Star + panel stack vertically, but the pill stays absolutely overlaid on
     the star (crossing its middle) like desktop/tablet — it must NOT drop below
     the logo. The pill is taken out of flow, so the panel sits right under the
     star with no extra gap. */
  .adstar-ai__stage {
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin-top: 8px;
  }

  .adstar-ai__star {
    position: relative;
    inset: auto;
    width: 100%;
  }
  .adstar-ai__star img {
    width: min(300px, 80%);
  }

  /* Keep base absolute positioning (left:50% + translateX(-50%)); only retune
     the vertical offset + size so the pill crosses the middle of the star. */
  .adstar-ai__pill {
    top: 24px;
    gap: 8px;
    height: 72px;
    padding: 8px 10px;
    z-index: 2;
  }
  .adstar-ai__tab {
    width: 56px;
    height: 56px;
  }
  .adstar-ai__icon {
    width: 28px;
    height: 28px;
  }

  .adstar-ai__panel {
    position: relative;
    left: auto;
    top: auto;
    transform: none;
    width: 100%;
    align-items: center;
    text-align: center;
  }
}

/* Honour reduced-motion: no swap fade, no tab scale. */
@media (prefers-reduced-motion: reduce) {
  .adstar-ai__panel-title,
  .adstar-ai__panel-body,
  .adstar-ai__tab {
    transition: none;
  }
  .adstar-ai__tab:active {
    transform: none;
  }
}