/* Alternating feature stories. The outer row keeps scroll geometry stable;
   only its inner composition scales and fades. */
.feature-stories { padding: 36px 6vw 56px; border-top: 1px solid var(--line); }
.feature-story { max-width: 1080px; margin: 0 auto; min-height: clamp(460px, 62svh, 620px); display: grid; align-items: center; padding-block: 28px; scroll-margin-top: 100px; }
.feature-surface { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.8fr); gap: clamp(32px, 4.5vw, 64px); align-items: center; transform-origin: 50% 50%; }
.feature-reverse { grid-template-columns: minmax(0, 1.8fr) minmax(0, .95fr); }
.feature-reverse .feature-copy { grid-column: 2; grid-row: 1; }
.feature-reverse .feature-demo { grid-column: 1; grid-row: 1; }
.feature-copy { min-width: 0; padding: 12px 0; }
.feature-dialogue { display: flex; flex-direction: column; gap: 14px; min-height: 164px; padding: 5px 5px 14px; }
.feature-message { position: absolute; top: 0; width: fit-content; max-width: 100%; border-radius: 22px; padding: 13px 18px; font: 500 clamp(16px, 1.35vw, 20px)/1.35 'Bito Web', Arial, sans-serif; letter-spacing: -.025em; overflow-wrap: anywhere; }
.feature-prompt { right: 0; color: #163a69; border: 1px solid #77a8eb; background: linear-gradient(180deg, #e4f0ff 0%, #bcd9ff 52%, #cce5f6 100%); box-shadow: inset 0 2px 0 #ffffffb3, 0 5px 11px #233f5f0c; transform-origin: 100% 100%; }
.feature-prompt:before { content: ''; position: absolute; height: 8px; left: 15px; right: 15px; top: 4px; border-radius: 99px; background: #ffffff75; pointer-events: none; }
.feature-prompt:after, .feature-answer:after { content: ''; position: absolute; bottom: 0; width: 16px; height: 17px; background: inherit; clip-path: path('M 16 0 Q 15 13 0 17 Q 12 17 16 11 Z'); }
.feature-prompt:after { right: -7px; transform: scaleX(-1); background: #cce5f6; }
.feature-answer { left: 0; color: #34453b; background: #edf2ed; border: 1px solid #dce5db; transform-origin: 0% 100%; }
.feature-answer:after { left: -8px; }
/* Reserve the completed message outside its animated surface. This keeps
   the heading, the next bubble and ScrollTrigger geometry stationary. */
.feature-prompt-slot, .feature-reply-slot { position: relative; width: 100%; align-self: stretch; min-height: 56px; }
.feature-ink { position: absolute; inset: 0; padding: inherit; border-radius: inherit; overflow: hidden; }
.feature-text { position: relative; display: block; width: var(--feature-line-width, auto); }
.feature-text > [data-feature-prompt], .feature-text > [data-feature-answer] { display: block; }
.feature-measure { position: absolute; top: 0; left: 0; width: max-content; max-width: var(--feature-line-width, 100%); visibility: hidden; pointer-events: none; }
.feature-typing { position: absolute; left: 0; top: 0; height: 43px; width: 64px; border-radius: 22px; background: #edf2ed; display: flex; align-items: center; justify-content: center; gap: 5px; opacity: 0; visibility: hidden; }
.feature-typing i { width: 5px; height: 5px; border-radius: 50%; background: #8a988b; }
.feature-copy h2 { font-size: clamp(20px, 1.7vw, 24px); line-height: 1.3; letter-spacing: -.05em; font-weight: 650; margin-top: 16px; }
.feature-description { max-width: 330px; margin-top: 11px; font-size: clamp(14px, 1.1vw, 16px); line-height: 1.65; color: #81858b; letter-spacing: -.025em; }
.feature-demo { margin: 0; min-width: 0; }
.feature-window { border: 1px solid #b5bdc7; border-radius: 17px; background: #f5f7f9; overflow: hidden; box-shadow: 0 13px 28px #30425c0a, 0 2px 4px #30425c05; }
.feature-window-bar { height: 34px; display: flex; align-items: center; justify-content: space-between; padding: 0 13px; gap: 12px; background: linear-gradient(#fff, #edf0f3); border-bottom: 1px solid #dce1e7; color: #8b9199; font-size: 10px; }
.feature-window-bar .window-dots { width: 34px; gap: 5px; }
.feature-window-spacer { width: 34px; }
.feature-window-body { position: relative; aspect-ratio: 16 / 9; background: #f5f7f9; }
.feature-demo figcaption { margin-top: 14px; text-align: center; font-size: 10px; color: #9da3ac; letter-spacing: -.01em; }
/* The copy column alternates; message ownership never mirrors with it. */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
@media (max-width: 1000px) and (min-width: 761px) {
  .feature-surface { grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 36px; }
  .feature-reverse { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); }
  .feature-dialogue { min-height: 164px; }
}
@media (max-width: 760px) {
  .feature-stories { padding: 36px 7vw 55px; }
  .feature-story { min-height: 0; padding-block: 34px; }
  .feature-surface, .feature-reverse { grid-template-columns: minmax(0, 1fr); gap: 30px; }
  .feature-reverse .feature-copy, .feature-reverse .feature-demo { grid-column: auto; grid-row: auto; }
  .feature-copy { padding: 0 6px; }
  .feature-dialogue { min-height: 0; gap: 17px; padding-bottom: 8px; }
  .feature-message { font-size: 20px; padding: 15px 19px; max-width: 100%; border-radius: 22px; }
  .feature-copy h2 { font-size: 23px; margin-top: 20px; }
  .feature-description { font-size: 14px; max-width: 100%; }
  .feature-window { border-radius: 13px; }
  .feature-window-bar { height: 28px; font-size: 8px; }
  .feature-demo figcaption { font-size: 8px; margin-top: 11px; }
}
@media (prefers-reduced-motion: reduce) {
  .feature-surface { opacity: 1!important; transform: none!important; }
}

.feature-video { display: block; width: 100%; height: 100%; aspect-ratio: 16 / 9; object-fit: contain; background: #f5f7f9; }

.feature-video-toggle {
  position: absolute;
  inset: 0;
  border: 0;
  background: none;
  cursor: pointer;
}
.feature-progress {
  position: absolute;
  inset: auto 14px 7px;
  height: 24px;
  opacity: 0;
  transition: opacity 160ms ease;
}
.feature-window-body:hover .feature-progress,
.feature-window-body:focus-within .feature-progress,
.feature-window-body:not(.is-playing) .feature-progress { opacity: 1; }
.feature-progress-track {
  position: absolute;
  inset: 10px 0;
  border-radius: 99px;
  background: rgb(255 255 255 / 36%);
  box-shadow: 0 0 0 1px rgb(10 20 30 / 18%);
  pointer-events: none;
  transition: transform 160ms ease;
}
.feature-progress-fill {
  width: var(--video-progress, 0%);
  height: 100%;
  border-radius: inherit;
  background: #fff;
}
.feature-progress:hover .feature-progress-track,
.feature-progress:focus-within .feature-progress-track { transform: scaleY(1.5); }
.feature-progress-input {
  appearance: none;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  border-radius: 99px;
  background: transparent;
  cursor: ew-resize;
}
.feature-progress-input::-webkit-slider-thumb {
  appearance: none;
  width: 1px;
  height: 1px;
  background: transparent;
}
.feature-progress-input::-moz-range-thumb {
  width: 1px;
  height: 1px;
  border: 0;
  background: transparent;
}
.feature-video-toggle:focus-visible,
.feature-progress-input:focus-visible { outline: 2px solid #85c9a1; outline-offset: -2px; }
@media (hover: none) {
  .feature-progress { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .feature-progress, .feature-progress-track { transition: none; }
}