/* ============================================================
   Interactive teaser — modality + backbone toggle pills and
   BF16-vs-OrbitQuant wipe-compare cards. Used by the teaser
   section in index_v2.html with static/js/teaser.js.
   ============================================================ */

/* ---- toggle pills ---- */
.teaser-toggles {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 1.4rem;
}
.teaser-pill[hidden] { display: none; }
.teaser-pill {
  display: inline-flex;
  background: var(--bg-soft);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 0.25rem;
  gap: 0.25rem;
}
.teaser-pill-btn {
  border: 0;
  background: transparent;
  color: var(--fg-muted);
  font-family: 'Google Sans', 'Noto Sans', system-ui, sans-serif;
  font-weight: 600;
  border-radius: 999px;
  padding: 0.45rem 1.4rem;
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}
.teaser-pill-btn:hover { color: var(--fg); }
.teaser-pill-btn.is-active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(11, 108, 242, 0.30);
}
.teaser-pill-modality .teaser-pill-btn { font-size: 1.05rem; }
.teaser-pill-backbone .teaser-pill-btn {
  font-size: 0.88rem;
  padding: 0.3rem 1.1rem;
}
.teaser-pill-backbone .teaser-pill-btn.is-active {
  background: #1f1f1f;
  box-shadow: none;
}

.teaser-hint {
  margin: 0 0 1rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--fg-muted);
}
.teaser-hint .fas { margin-right: 0.35rem; color: var(--accent); }

/* ---- compare-card grid ---- */
.teaser-panel[hidden] { display: none; }
.teaser-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  max-width: 1152px;
  margin: 0 auto;
}

.cmp {
  margin: 0;
}
.cmp-media {
  --pos: 50%;
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  background: #0f1115;
  border: 1px solid var(--rule);
  cursor: ew-resize;
  user-select: none;
  -webkit-user-select: none;
  touch-action: pan-y;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.07);
}
.cmp-media img,
.cmp-media video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
}
/* BF16 layer sits on top, clipped to the left of the divider. */
.cmp-clip {
  position: absolute;
  inset: 0;
  clip-path: inset(0 calc(100% - var(--pos)) 0 0);
}

/* ---- divider handle ---- */
.cmp-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--pos);
  width: 0;
  outline: none;
}
.cmp-handle::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: -1px;
  width: 2px;
  background: #fff;
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.45);
}
.cmp-grip {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translate(-50%, -50%);
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  background: #fff;
  color: #444;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
  transition: transform 0.12s ease;
}
.cmp-media:hover .cmp-grip,
.cmp-handle:focus-visible .cmp-grip {
  transform: translate(-50%, -50%) scale(1.12);
}
.cmp-handle:focus-visible .cmp-grip {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---- corner labels ---- */
.cmp-label {
  position: absolute;
  top: 0.55rem;
  z-index: 2;
  font-family: 'Google Sans', 'Noto Sans', system-ui, sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #fff;
  background: rgba(0, 0, 0, 0.55);
  padding: 0.18rem 0.5rem;
  border-radius: 4px;
  pointer-events: none;
}
.cmp-label-l { left: 0.6rem; }
.cmp-label-r {
  right: 0.6rem;
  background: rgba(11, 108, 242, 0.85);
}

.cmp-prompt {
  margin-top: 0.55rem;
  text-align: center;
  font-size: 0.88rem;
  font-style: italic;
  color: var(--fg-muted);
  line-height: 1.4;
}

/* ---- tagline + claim chips ---- */
.teaser-tagline { margin-top: 1.6rem; }
.teaser-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 0.9rem;
}
.teaser-chip {
  font-family: 'Google Sans', 'Noto Sans', system-ui, sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(11, 108, 242, 0.25);
  border-radius: 999px;
  padding: 0.28rem 0.85rem;
}

@media (max-width: 768px) {
  .teaser-grid { grid-template-columns: 1fr; max-width: 480px; }
  .teaser-pill-btn { padding: 0.4rem 1rem; }
  .teaser-pill-modality .teaser-pill-btn { font-size: 0.98rem; }
}