body[data-note-design="reasoning-window"] {
  --reasoning-night: oklch(5% 0.018 247);
  --reasoning-paper: oklch(96% 0.025 85);
  --reasoning-teal: oklch(73% 0.13 192);
  --reasoning-cyan: oklch(81% 0.1 211);
  --reasoning-gold: oklch(80% 0.16 75);
  --reasoning-coral: oklch(67% 0.19 35);
}

body[data-note-design="reasoning-window"] .article-main {
  padding-top: 5.2rem;
  background: var(--reasoning-night);
}

body[data-note-design="reasoning-window"] .article-main article {
  padding-bottom: 6rem;
  background:
    radial-gradient(circle at 84% 2%, oklch(70% 0.1 192 / 0.15), transparent 28rem),
    linear-gradient(180deg, var(--paper-faint), var(--paper-warm));
}

body[data-note-design="reasoning-window"] .article-header--art-directed {
  position: relative;
  isolation: isolate;
  width: 100%;
  min-height: calc(100svh - 5.2rem);
  margin: 0;
  overflow: hidden;
  padding: 0;
  color: var(--reasoning-paper);
  background: var(--reasoning-night);
}

body[data-note-design="reasoning-window"] .article-hero-media,
body[data-note-design="reasoning-window"] .article-hero-veil {
  position: absolute;
  inset: 0;
}

body[data-note-design="reasoning-window"] .article-hero-media {
  z-index: -2;
  overflow: hidden;
}

body[data-note-design="reasoning-window"] .article-hero-media video,
body[data-note-design="reasoning-window"] .article-hero-media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: var(--hero-position, 70% center);
}

body[data-note-design="reasoning-window"] .article-hero-media img {
  transform-origin: 72% 48%;
  animation: reasoning-still-drift 18s cubic-bezier(0.16, 1, 0.3, 1) both;
}

body[data-note-design="reasoning-window"] .article-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.13;
  background: repeating-linear-gradient(0deg, transparent 0 4px, oklch(96% 0.02 85 / 0.08) 5px, transparent 6px);
  mix-blend-mode: soft-light;
}

body[data-note-design="reasoning-window"] .article-hero-veil {
  z-index: -1;
  background:
    linear-gradient(90deg, oklch(3% 0.014 247 / 0.94) 0 24%, oklch(3% 0.014 247 / 0.66) 46%, transparent 70%),
    linear-gradient(180deg, oklch(3% 0.014 247 / 0.3), transparent 28%, transparent 68%, oklch(3% 0.014 247 / 0.78));
}

body[data-note-design="reasoning-window"] .article-header__inner {
  --reasoning-title-top: clamp(8.5rem, 20vh, 13.5rem);
  position: relative;
  width: min(calc(100% - 2rem), 82rem);
  min-height: calc(100svh - 5.2rem);
  margin: 0 auto;
  padding: 0;
}

body[data-note-design="reasoning-window"] .article-header__inner .article-meta {
  position: absolute;
  top: calc(var(--reasoning-title-top) - 3.75rem);
  left: 0;
  align-items: center;
  width: fit-content;
  color: oklch(96% 0.025 85 / 0.64);
  animation: reasoning-copy-in 0.8s ease-out both;
}

body[data-note-design="reasoning-window"] .article-header__inner .article-meta span:first-child {
  display: inline-flex;
  align-items: center;
  color: var(--reasoning-night);
  background: var(--reasoning-gold);
  border-color: oklch(96% 0.025 85 / 0.58);
  padding-block: 0.3rem;
}

body[data-note-design="reasoning-window"] .article-title--split {
  position: absolute;
  top: var(--reasoning-title-top);
  left: 0;
  max-width: 9.2em;
  margin: 0;
  color: var(--reasoning-paper);
  font: 500 clamp(4rem, 6.1vw, 7rem) / 0.91 var(--font-body);
  letter-spacing: -0.065em;
  overflow-wrap: normal;
  text-transform: none;
  text-shadow: 0 3px 32px oklch(1% 0.01 247 / 0.94);
}

body[data-note-design="reasoning-window"] .article-title--split span {
  display: block;
  animation: reasoning-copy-in 0.95s var(--ease-out) 0.12s both;
}

body[data-note-design="reasoning-window"] .article-title--split span:first-child {
  max-width: 8em;
}

body[data-note-design="reasoning-window"] .article-title--split span:last-child {
  white-space: nowrap;
  width: fit-content;
  margin-top: 0.52em;
  color: oklch(96% 0.025 85 / 0.76);
  font-size: 0.46em;
  font-style: italic;
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.025em;
  animation-delay: 0.24s;
}

body[data-note-design="reasoning-window"] .article-header__inner > p {
  position: absolute;
  left: 0;
  bottom: clamp(3.5rem, 9vh, 6.2rem);
  max-width: 38ch;
  margin: 0;
  color: oklch(96% 0.025 85 / 0.7);
  font-size: clamp(1.02rem, 1.55vw, 1.23rem);
  font-weight: 500;
  line-height: 1.45;
  text-shadow: 0 2px 22px oklch(1% 0.01 247 / 0.95);
  text-wrap: pretty;
  animation: reasoning-copy-in 0.9s var(--ease-out) 0.42s both;
}

body[data-note-design="reasoning-window"] .article-bands {
  height: 0.34rem;
  background: linear-gradient(90deg, var(--reasoning-teal) 0 43%, var(--reasoning-cyan) 43% 65%, var(--reasoning-gold) 65% 85%, var(--reasoning-coral) 85% 100%);
}

body[data-note-design="reasoning-window"] .article-copy > p:first-child,
body[data-note-design="reasoning-window"] .article-copy > p:nth-child(8) {
  color: var(--ink);
  font-size: clamp(1.35rem, 2.3vw, 1.62rem);
  font-weight: 600;
  line-height: 1.48;
}

@keyframes reasoning-copy-in {
  from { opacity: 0; transform: translate3d(0, 1.15rem, 0); }
  to { opacity: 1; transform: translate3d(0, 0, 0); }
}

@keyframes reasoning-still-drift {
  from { transform: scale(1.045) translate3d(0.65%, -0.3%, 0); }
  to { transform: scale(1.015) translate3d(-0.35%, 0.15%, 0); }
}

@media (max-width: 47.98rem) {
  body[data-note-design="reasoning-window"] .article-main {
    padding-top: 4.8rem;
  }

  body[data-note-design="reasoning-window"] .article-header--art-directed,
  body[data-note-design="reasoning-window"] .article-header__inner {
    min-height: calc(100svh - 4.8rem);
  }

  body[data-note-design="reasoning-window"] .article-hero-media video,
  body[data-note-design="reasoning-window"] .article-hero-media img {
    object-position: 72% center;
  }

  body[data-note-design="reasoning-window"] .article-hero-veil {
    background:
      linear-gradient(180deg, oklch(3% 0.014 247 / 0.28), transparent 28%, oklch(3% 0.014 247 / 0.52) 58%, oklch(3% 0.014 247 / 0.96)),
      linear-gradient(90deg, oklch(3% 0.014 247 / 0.4), transparent 82%);
  }

  body[data-note-design="reasoning-window"] .article-header__inner {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 4.5rem 0 3.2rem;
  }

  body[data-note-design="reasoning-window"] .article-header__inner .article-meta,
  body[data-note-design="reasoning-window"] .article-title--split,
  body[data-note-design="reasoning-window"] .article-header__inner > p {
    position: static;
  }

  body[data-note-design="reasoning-window"] .article-header__inner .article-meta {
    gap: 0.5rem 0.75rem;
    margin-bottom: 0.78rem;
    font-size: 0.59rem;
  }

  body[data-note-design="reasoning-window"] .article-title--split {
    width: 100%;
    max-width: none;
    margin-bottom: 1.25rem;
    font-size: clamp(2.9rem, 13.5vw, 4.6rem);
    letter-spacing: -0.058em;
  }

  body[data-note-design="reasoning-window"] .article-title--split span:first-child {
    max-width: none;
  }

  body[data-note-design="reasoning-window"] .article-title--split span:last-child {
    white-space: normal;
    font-size: 0.5em;
  }

  body[data-note-design="reasoning-window"] .article-header__inner > p {
    max-width: 32ch;
    font-size: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  body[data-note-design="reasoning-window"] .article-header__inner .article-meta,
  body[data-note-design="reasoning-window"] .article-title--split span,
  body[data-note-design="reasoning-window"] .article-header__inner > p {
    animation: none;
  }

  body[data-note-design="reasoning-window"] .article-hero-media img {
    animation: none;
  }
}