@font-face {
  font-family: "Klarheit Grotesk";
  src: url("./fonts/KlarheitGrotesk-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --neutral-50: #fffcf7;
  --neutral-75: #f7f5f0;
  --neutral-200: #ebe8e4;
  --neutral-400: #bab8b5;
  --neutral-500: #757472;
  --neutral-600: #61605e;
  --neutral-800: #2e2d2d;
  --neutral-900: #1a1919;
  --neutral-950: #070707;

  --eclipse-4: rgba(7, 7, 7, 0.04);
  --eclipse-8: rgba(7, 7, 7, 0.08);
  --eclipse: #070707;

  --playa-75: #fff5e3;

  --surface-canvas: var(--neutral-50);
  --surface-base: var(--playa-75);
  --surface-raised: #ffffff;
  --hairline: var(--neutral-200);
  --text: var(--neutral-800);
  --text-secondary: var(--neutral-500);
  --accent: #0066ff;

  --font-ui: "Klarheit Grotesk", system-ui, sans-serif;

  --space-8: 8px;
  --space-12: 12px;
  --space-16: 16px;
  --space-24: 24px;
  --space-32: 32px;
  --radius: 8px;
  --radius-sm: 6px;
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.10);
  --ease-out: cubic-bezier(0.33, 1, 0.68, 1);

  --carousel-width: 624px;
  --carousel-media-radius: 10px;
  --carousel-slide-ratio: 3 / 2;
  --carousel-progress-fill: var(--neutral-600);
  --carousel-progress-track: rgba(7, 7, 7, 0.1);
  --carousel-segment-bar: 8px;
  --carousel-hit: 44px;

  --text-paragraph-xlarge: 18px;
  --text-paragraph-large: 16px;
  --leading-paragraph: 1.4;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.2;
  color: var(--text);
  background: var(--surface-canvas);
  -webkit-font-smoothing: antialiased;
}

.proto-page {
  max-width: 960px;
  margin: 0 auto;
  padding: var(--space-32) var(--space-24) 80px;
}

.proto-back {
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: var(--space-24);
  transition: color 0.15s var(--ease-out);
}

.proto-back:hover { color: var(--neutral-900); }

.proto-header {
  margin-bottom: var(--space-32);
}

.proto-title {
  font-size: 15px;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-8);
}

.proto-desc {
  color: var(--text-secondary);
  max-width: 52ch;
  line-height: 1.45;
}

.stage {
  display: flex;
  justify-content: center;
  padding: var(--space-24);
  background: var(--surface-base);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
}

.stage-hint {
  margin-top: var(--space-16);
  font-size: 11px;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.45;
}

/* ── Carousel ── */

.carousel {
  position: relative;
  width: min(100%, var(--carousel-width));
  user-select: none;
  touch-action: manipulation;
}

.carousel__viewport {
  display: flex;
  flex-direction: column;
  padding: 28px 28px 32px;
}

.carousel__media {
  position: relative;
  width: 100%;
  aspect-ratio: var(--carousel-slide-ratio);
  flex-shrink: 0;
  border-radius: var(--carousel-media-radius);
  background: #f2ead8;
  box-shadow: 0 1px 2px var(--eclipse-4);
}

.carousel__tap-zones {
  position: absolute;
  inset: 0;
  display: flex;
  z-index: 2;
}

.carousel__autoplay-toggle {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: var(--carousel-hit);
  padding: 6px 12px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--surface-raised);
  color: var(--eclipse);
  font: inherit;
  font-size: 12px;
  line-height: 1.1;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: opacity 0.15s var(--ease-out), border-color 0.15s var(--ease-out);
}

.carousel__autoplay-label {
  white-space: nowrap;
}

.carousel__autoplay-switch-track {
  position: relative;
  flex-shrink: 0;
  display: block;
  width: 32px;
  height: 18px;
  border-radius: 999px;
  background: var(--accent);
  transition: background 0.15s var(--ease-out);
}

.carousel.is-autoplay-off .carousel__autoplay-switch-track {
  background: var(--neutral-400);
}

.carousel__autoplay-switch-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--surface-raised);
  box-shadow: 0 1px 2px var(--eclipse-8);
  transform: translateX(14px);
  transition: transform 0.15s var(--ease-out);
}

.carousel.is-autoplay-off .carousel__autoplay-switch-thumb {
  transform: none;
}

@media (hover: hover) {
  .carousel__autoplay-toggle {
    opacity: 0;
    pointer-events: none;
  }

  .carousel:hover .carousel__autoplay-toggle {
    opacity: 0.4;
    pointer-events: auto;
    border-color: var(--eclipse-8);
  }

  .carousel:hover .carousel__autoplay-toggle:hover,
  .carousel__autoplay-toggle:focus-visible {
    opacity: 1;
    pointer-events: auto;
    border-color: var(--hairline);
  }
}

@media (hover: none) {
  .carousel__autoplay-toggle {
    opacity: 1;
  }
}

.carousel__autoplay-toggle:focus-visible {
  outline: 2px solid rgba(0, 102, 255, 0.35);
  outline-offset: 2px;
}

.carousel__slides {
  position: absolute;
  inset: 0;
  border: 1px solid var(--eclipse-4);
  border-radius: var(--carousel-media-radius);
  overflow: hidden;
  z-index: 1;
}

.carousel__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.32s var(--ease-out);
  pointer-events: none;
}

.carousel__slide.is-active {
  opacity: 1;
  pointer-events: auto;
}

.carousel__slide img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.carousel__progress {
  display: flex;
  gap: 5px;
  margin-top: var(--space-12);
  flex-shrink: 0;
  height: var(--carousel-segment-bar);
  align-items: center;
  overflow: visible;
}

.carousel__segment {
  position: relative;
  flex: 1;
  align-self: center;
  min-height: var(--carousel-hit);
  margin-block: calc((var(--carousel-segment-bar) - var(--carousel-hit)) / 2);
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
}

.carousel__segment-track {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: var(--carousel-segment-bar);
  transform: translateY(-50%);
  border-radius: 999px;
  overflow: hidden;
  background: var(--carousel-progress-track);
  transition: background 0.15s var(--ease-out);
  pointer-events: none;
}

.carousel__segment:hover .carousel__segment-track {
  background: rgba(7, 7, 7, 0.14);
}

.carousel__segment:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(0, 102, 255, 0.35);
  border-radius: var(--radius-sm);
}

.carousel__segment-fill {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 0;
  background: var(--carousel-progress-fill);
  pointer-events: none;
}

.carousel__segment.is-complete .carousel__segment-fill {
  width: 100%;
}

.carousel__segment.is-active .carousel__segment-fill {
  width: calc(var(--progress, 0) * 100%);
}

.carousel.is-autoplay-off .carousel__segment.is-active .carousel__segment-fill {
  width: 100%;
}

.carousel.is-paused:not(.is-autoplay-off) .carousel__segment.is-active .carousel__segment-fill {
  opacity: 0.72;
}

.carousel__copy {
  margin-top: 28px;
  flex-shrink: 0;
}

.carousel__headline {
  font-family: var(--font-ui);
  font-size: var(--text-paragraph-xlarge);
  font-weight: 400;
  line-height: var(--leading-paragraph);
  color: var(--neutral-900);
  margin-bottom: 4px;
}

.carousel__subhead {
  font-family: var(--font-ui);
  font-size: var(--text-paragraph-large);
  font-weight: 400;
  line-height: var(--leading-paragraph);
  color: var(--neutral-600);
}

.carousel__tap-prev,
.carousel__tap-next {
  flex: 1;
  border: none;
  background: transparent;
  cursor: pointer;
}

.carousel__tap-prev:focus-visible,
.carousel__tap-next:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px rgba(0, 102, 255, 0.35);
}

/* ── Static slide visuals (HTML mocks) ── */

.slide-mock {
  width: 100%;
  height: 100%;
  background: var(--surface-raised);
  font-size: 10px;
  color: var(--neutral-800);
  overflow: hidden;
}

.slide-mock__chrome {
  display: flex;
  height: 100%;
}

.slide-mock__sidebar {
  width: 34%;
  border-right: 1px solid var(--hairline);
  background: var(--neutral-50);
  padding: 10px 8px;
}

.slide-mock__sidebar-title {
  font-size: 9px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  padding: 0 4px;
}

.slide-mock__thread {
  padding: 6px 8px;
  border-radius: 6px;
  margin-bottom: 4px;
  line-height: 1.3;
}

.slide-mock__thread.is-active {
  background: var(--surface-raised);
  box-shadow: 0 1px 2px rgba(7, 7, 7, 0.06);
}

.slide-mock__thread-name {
  font-size: 9px;
  color: var(--text-secondary);
}

.slide-mock__main {
  flex: 1;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.slide-mock__title {
  font-size: 11px;
  color: var(--neutral-900);
}

.slide-mock__bubble {
  margin-top: auto;
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--neutral-75);
  font-size: 9px;
  line-height: 1.4;
  color: var(--neutral-800);
}

.slide-mock__bubble--draft {
  border: 1px dashed #9dc4fe;
  background: #f2f7ff;
}

.slide-mock__badge {
  display: inline-block;
  font-size: 8px;
  padding: 2px 6px;
  border-radius: 999px;
  background: #ebf3ff;
  color: var(--accent);
  margin-bottom: 4px;
}

.slide-mock--approve {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--neutral-50);
}

.slide-mock__approve-card {
  width: 78%;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  background: var(--surface-raised);
  padding: 14px;
  box-shadow: 0 4px 12px rgba(7, 7, 7, 0.06);
}

.slide-mock__approve-actions {
  display: flex;
  gap: 6px;
  margin-top: 10px;
}

.slide-mock__btn {
  flex: 1;
  text-align: center;
  padding: 6px 0;
  border-radius: 6px;
  font-size: 9px;
}

.slide-mock__btn--primary {
  background: var(--accent);
  color: #fff;
}

.slide-mock__btn--ghost {
  border: 1px solid var(--hairline);
  color: var(--neutral-800);
}

.slide-mock--teammates {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: var(--neutral-50);
}

.slide-mock--edits {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: var(--neutral-50);
}

.slide-mock__edits-card {
  width: 78%;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  background: var(--surface-raised);
  padding: 14px;
  box-shadow: 0 4px 12px rgba(7, 7, 7, 0.06);
}

.slide-mock__edit-list {
  list-style: none;
  margin: 10px 0;
  display: grid;
  gap: 6px;
}

.slide-mock__edit-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 9px;
  color: var(--neutral-800);
  padding: 6px 8px;
  border-radius: 6px;
  background: var(--neutral-75);
}

.slide-mock__edit-item::before {
  content: "";
  width: 12px;
  height: 12px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1px solid var(--hairline);
  background: var(--surface-raised);
}

.slide-mock__edit-item.is-done::before {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: inset 0 0 0 2px var(--surface-raised);
}

.slide-mock__edits-card .slide-mock__badge {
  margin-top: 4px;
}

.slide-mock__agent {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
  background: transparent;
}

.slide-mock__agent-art {
  width: 124px;
  height: 124px;
  flex-shrink: 0;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--surface-raised);
  box-shadow: var(--shadow-md);
  background: var(--accent);
}

.slide-mock__agent-art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.slide-mock__agent-label {
  padding: 8px;
  font-size: 9px;
  color: var(--neutral-900);
}

@media (prefers-reduced-motion: reduce) {
  .carousel__slide {
    transition-duration: 0.01ms;
  }

  .carousel__segment.is-active .carousel__segment-fill {
    width: 100%;
  }
}