@font-face {
  font-family: "JetBrains Mono";
  src: url("assets/fonts/JetBrainsMono-Regular.ttf?v=20260610") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #f1f1f3;
  --bg-alt: #f1f1f3;
  --surface: #ffffff;
  --surface-hi: #ffffff;
  --text: #17141c;
  --text-soft: #302a3a;
  --text-muted: #6b6178;
  --text-faint: #a9a0b5;
  --accent: rgb(97, 38, 168);
  --accent-rgb: 97, 38, 168;
  --accent-soft: rgb(236, 230, 243);
  --accent-line: rgba(97, 38, 168, 0.28);
  --blue: rgb(47, 110, 186);
  --blue-rgb: 47, 110, 186;
  --border: rgba(97, 38, 168, 0.13);
  --border-hi: rgba(97, 38, 168, 0.22);
  --hairline: rgba(97, 38, 168, 0.06);
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 6px -1px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 8px 24px -8px rgba(15, 23, 42, 0.12), 0 2px 6px -2px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 20px 40px -16px rgba(15, 23, 42, 0.18), 0 4px 12px -4px rgba(15, 23, 42, 0.08);
  --max-w: 950px;
  --wide-w: 950px;
  --pad-x: 24px;
  --radius: 8px;
  --leading-body: 1.6;
  --leading-compact: 1.45;
  --leading-ui: 1.3;
  --paragraph-gap: 0.72rem;
  --label-font: "JetBrains Mono", "Cascadia Mono", "Consolas", "Courier New", monospace;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Aptos", Arial, sans-serif;
  font-size: 17px;
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}

img,
video {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

[hidden] {
  display: none !important;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

section {
  width: min(var(--max-w), calc(100vw - 96px));
  max-width: none;
  margin: 0 auto;
  padding: 0.8rem 0;
  scroll-margin-top: 24px;
}

main {
  display: flex;
  flex-direction: column;
}

#overview {
  order: 1;
  padding-top: 1rem;
}

#summaryvideo {
  order: 2;
  padding-bottom: 1.6rem;
}

#method {
  order: 3;
  padding-top: 0;
}

#experiments {
  order: 4;
}

h1, h2, h3, h4 {
  color: var(--text);
  line-height: 1.12;
  letter-spacing: 0;
}

h1 {
  font-size: 3.05rem;
  font-weight: 800;
}

h2 {
  color: var(--accent);
  font-size: 2rem;
  font-weight: 760;
  margin-bottom: 0.95rem;
  position: relative;
  padding-bottom: 0.6rem;
}

h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 34px;
  height: 2px;
  background: var(--accent);
  border-radius: 999px;
}

#method > h2 {
  margin-bottom: 1rem;
  padding-bottom: 0;
  color: var(--text);
  font-family: var(--label-font);
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.3;
  text-transform: uppercase;
}

#method > h2::after {
  content: none;
}

h3 {
  font-size: 1.26rem;
  font-weight: 680;
  margin-bottom: 0.7rem;
}

h4 {
  font-size: 1rem;
  font-weight: 650;
}

p {
  font-size: 1em;
  line-height: var(--leading-body);
  margin-bottom: var(--paragraph-gap);
}

p:last-child {
  margin-bottom: 0;
}

.body-text,
#abstract > p,
figcaption,
.hero-tagline,
.hero-takeaway,
.method-stage-copy p {
  text-wrap: pretty;
  hyphens: auto;
  -webkit-hyphens: auto;
  hyphenate-limit-chars: 10 4 4;
}

.body-text,
#abstract > p,
#overview > p,
.experiment-block-header p {
  color: var(--text-soft);
  font-size: 1.2rem;
  line-height: var(--leading-body);
  text-align: justify;
  text-align-last: left;
}

.section-tag,
.toc-title,
.score-table thead th,
.status-badge,
.media-placeholder-label {
  font-family: var(--label-font);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 0.75rem;
  color: var(--accent);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.section-tag::before {
  content: "";
  width: 14px;
  height: 1.5px;
  background: var(--accent);
  border-radius: 999px;
}

.section-subheading {
  color: var(--accent);
  font-size: 1.45rem;
  margin-bottom: 0.9rem;
}

/* Sticky table of contents */
#toc-nav {
  position: fixed;
  left: 26px;
  top: 50%;
  width: 252px;
  z-index: 100;
  background: transparent;
  transform: translateX(-130%) translateY(-50%);
  transition: transform 0.32s var(--ease-out);
  pointer-events: none;
}

#toc-nav.visible {
  transform: translateX(0) translateY(-50%);
  pointer-events: auto;
}

#toc-nav::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(to bottom, transparent 0%, var(--border) 12%, var(--border) 88%, transparent 100%);
}

.toc-inner {
  display: flex;
  flex-direction: column;
}

.toc-title {
  font-family: var(--label-font);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--text-soft);
  opacity: 0.82;
  padding: 0 0 0px 20px;
}

.toc-link {
  position: relative;
  display: block;
  padding: 5px 8px 5px 18px;
  font-family: var(--label-font);
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--text-muted);
  line-height: 1.4;
  white-space: nowrap;
  transition: color 0.22s ease, padding-left 0.22s ease;
}

.toc-subgroup {
  display: flex;
  flex-direction: column;
  margin: -1px 0 5px 18px;
}

.toc-link-sub {
  padding-top: 5px;
  padding-bottom: 4px;
  padding-left: 14px;
  font-size: 0.65rem;
  color: var(--text-faint);
}

.toc-link::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 50%;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--bg);
  border: 1.5px solid var(--border);
  transform: translateY(-50%);
  transition: background 0.22s ease, border-color 0.22s ease, width 0.22s ease, height 0.22s ease, left 0.22s ease, box-shadow 0.22s ease;
}

.toc-link:hover {
  color: var(--text);
}

.toc-link:hover::before {
  border-color: var(--text-muted);
  width: 9px;
  height: 9px;
  left: 0;
}

.toc-link-sub::before {
  left: 2px;
  width: 4px;
  height: 4px;
  background: var(--text-faint);
  border: 0;
}

.toc-link-sub:hover::before {
  left: 1px;
  width: 6px;
  height: 6px;
  background: var(--text-muted);
  border: 0;
}

.toc-link.active {
  color: var(--text);
  font-weight: 500;
}

.toc-link.active-parent {
  color: var(--text-soft);
}

.toc-link.active::before {
  background: var(--accent);
  border-color: var(--accent);
  width: 9px;
  height: 9px;
  left: 0;
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.14);
}

.toc-link-sub.active {
  color: var(--text);
  font-weight: 400;
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 4px;
}

.toc-link-sub.active::before {
  width: 6px;
  height: 6px;
  left: 1px;
  box-shadow: none;
}

/* Hero */
#hero-title {
  background: var(--bg);
  position: relative;
  text-align: center;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  overflow: hidden;
}

.hero-copy {
  position: relative;
  z-index: 2;
  display: flex;
  width: 100%;
  flex: 0 0 auto;
  min-height: 0;
  margin: 0 auto;
  padding: clamp(21px, 3.2vw, 38px) var(--pad-x);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(229, 229, 232, 0.48);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}

.title-line {
  width: 100%;
  max-width: 100%;
  margin: 0 auto 1.05rem;
  line-height: 1.02;
  text-align: center;
}

.title-main {
  display: block;
  font-family: "Segoe UI", "Aptos", Arial, sans-serif;
  /* font-size: clamp(3.85rem, 4.25vw, 5rem); */
  font-size:clamp(2.9rem, 3.5vw, 4rem);
  font-weight: 650;
  letter-spacing: 0;
}

.title-line-part {
  display: block;
  line-height: 1.04;
  white-space: nowrap;
}

.title-tac {
  color: var(--accent);
}

.title-rl {
  color: var(--blue);
}

.term-emphasis {
  font-style: italic;
  font-weight: 700;
}

.term-tac {
  color: var(--accent);
}

.term-rl {
  color: var(--blue);
}

.term-neutral {
  color: var(--text);
}

.hero-tagline {
  max-width: var(--max-w);
  margin: 0 auto;
  color: var(--text-soft);
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1.58;
  text-align: center;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 40px;
  margin: 1.05rem 0 0;
}

.hero-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 62px;
  padding: 0 30px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: #d4d4d465;
  color: var(--accent);
  box-shadow: 0 12px 28px -16px rgba(var(--accent-rgb), 0.8);
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1;
  transition: transform 0.18s var(--ease-out), box-shadow 0.18s var(--ease-out), border-color 0.18s var(--ease-out), background 0.18s var(--ease-out);
}

.hero-action-btn:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.hero-action-btn:focus-visible,
.tab-btn:focus-visible {
  outline: 3px solid rgba(var(--accent-rgb), 0.22);
  outline-offset: 3px;
}

.hero-action-icon {
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
  color: currentColor;
}

.hero-takeaway {
  max-width: 760px;
  margin: 1.15rem auto 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

.hero-media-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  min-height: 0;
  margin: 0;
}

.hero-media-card,
.summary-video-shell,
.comparison-video-card,
.metric-card,
.method-stage-card,
.table-wrap,
.figure-card,
.task-figure img,
.teaser-figure img,
.figure-shell {
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}

.hero-media-card {
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 0;
  border: 0;
  background: var(--bg);
  box-shadow: none;
}

.hero-video {
  width: 100%;
  height: 100%;
  background: transparent;
  object-fit: cover;
  object-position: center center;
}

.hero-media-wrap .media-caption {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

@media (max-aspect-ratio: 9 / 10) {
  .hero-video {
    object-fit: contain;
  }
}

.summary-video-shell {
  margin-top: 0.8rem;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.summary-video {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  background: transparent;
  object-fit: contain;
}

.media-placeholder {
  position: relative;
  display: flex;
  min-height: 100%;
  width: 100%;
  aspect-ratio: 16 / 9;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 9px;
  overflow: hidden;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(var(--accent-rgb), 0.28), rgba(var(--blue-rgb), 0.16) 42%, rgba(12, 15, 22, 0) 43%),
    linear-gradient(150deg, #151823 0%, #232333 54%, #12141d 100%);
  color: #f8f7fb;
  text-align: center;
  padding: 24px;
}

.media-placeholder::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: inherit;
  pointer-events: none;
}

.media-placeholder-large {
  min-height: 320px;
}

.media-placeholder-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
}

.media-placeholder-icon::before {
  content: "";
  width: 0;
  height: 0;
  margin-left: 4px;
  border-top: 9px solid transparent;
  border-bottom: 9px solid transparent;
  border-left: 14px solid currentColor;
}

.media-placeholder-label {
  position: relative;
  z-index: 1;
  color: rgba(248, 247, 251, 0.72);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
}

.media-placeholder-title {
  position: relative;
  z-index: 1;
  max-width: 92%;
  color: #ffffff;
  font-size: 1.12rem;
  font-weight: 700;
  line-height: 1.28;
  overflow-wrap: anywhere;
}

.media-caption {
  margin-top: 0.8rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.6;
  text-align: justify;
  text-align-last: left;
}

figcaption {
  margin-top: 0.8rem;
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.6;
  text-align: justify;
  text-align-last: left;
}

/* Figures and method */
.task-figure,
.teaser-figure,
.wide-figure {
  margin-top: 1.9rem;
}

.teaser-figure {
  width: min(100%, 920px);
  margin-left: auto;
  margin-right: auto;
}

.task-figure img,
.teaser-figure img,
.figure-shell {
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
}

.figure-shell img {
  width: 100%;
}

.pale-shell {
  padding: 18px;
  background: transparent;
}

.figure-with-caption .pale-shell {
  padding-bottom: 0;
}

.dark-shell {
  background: #120f18;
}

.paper-preview-figure {
  width: 100%;
  margin-top: 1.4rem;
}

.paper-preview-link {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid #888;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.18s var(--ease-out), box-shadow 0.18s var(--ease-out), transform 0.18s var(--ease-out);
}

.paper-preview-link:hover,
.paper-preview-link:focus-visible,
.paper-preview-link:active {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.paper-preview-strip {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 0;
  align-items: end;
  padding: 12px 0 0;
}

.paper-preview-strip img {
  width: 100%;
  height: auto;
  object-fit: contain;
  transform: scale(1.08);
  transform-origin: bottom center;
}

.method-stage-grid {
  display: grid;
  gap: 18px;
  margin-top: 1.7rem;
}

.method-stage-card {
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: 24px;
  align-items: center;
  border-radius: 10px;
  padding: 22px;
}

.method-stage-card-flip {
  grid-template-columns: 0.92fr 1.08fr;
}

.method-stage-card-flip .method-stage-media {
  order: 2;
}

.method-stage-card-flip .method-stage-copy {
  order: 1;
}

.method-stage-card-text-only {
  display: block;
  padding: 24px 26px;
  border-left: 3px solid var(--accent-line);
}

.method-stage-media img {
  width: 100%;
  border-radius: 6px;
}

.method-stage-copy p {
  color: var(--text-soft);
  font-size: 0.886rem;
  line-height: 1.68;
  text-align: justify;
  text-align-last: left;
}

.method-overview-figure {
  margin-top: 1.7rem;
  margin-bottom: 3rem;
}

.method-stage {
  padding-top: 2.25rem;
  margin-top: 2.25rem;
  border-top: 1px solid var(--border);
}

.method-stage-header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
  margin-bottom: 1.05rem;
}

.method-stage-index {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--accent-line);
  border-radius: 50%;
  background: var(--surface);
  color: var(--accent);
  font-family: "Consolas", "Courier New", monospace;
  font-size: 0.86rem;
  font-weight: 700;
  box-shadow: var(--shadow-xs);
}

.method-stage-label {
  display: block;
  margin-bottom: 0.42rem;
  color: var(--text-muted);
  font-family: "Consolas", "Courier New", monospace;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
}

.method-stage-title {
  margin: 0;
  color: var(--text);
  font-size: 1.42rem;
  line-height: 1.2;
}

.alignment-summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 1.5rem;
}

.alignment-summary-card {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow-md);
}

.alignment-summary-image {
  display: grid;
  place-items: center;
  min-height: 220px;
  padding: 14px;
  background: var(--surface-hi);
  border-bottom: 1px solid var(--border);
}

.alignment-summary-image img {
  width: 100%;
  max-height: 280px;
  object-fit: contain;
}

.alignment-summary-card figcaption {
  padding: 14px 16px 16px;
  margin: 0;
}

.alignment-summary-card--combined {
  margin-top: 1.2rem;
  overflow: visible;
}

.alignment-summary-card--combined .alignment-summary-grid {
  grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr);
  gap: 18px;
  margin-top: 0;
  padding: 0;
  align-items: start;
}

.alignment-summary-card--combined .alignment-summary-image {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  min-height: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
}

.alignment-summary-card--combined .alignment-summary-image img {
  display: block;
  width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
}

.alignment-summary-title {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--text);
  font-size: 0.92rem;
}

.interface-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 1rem;
}

.interface-badge {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid var(--border-hi);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--text-soft);
  font-size: 0.78rem;
  font-weight: 650;
}

.calibration-details {
  margin-top: 1.2rem;
  border: 0;
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  font-family: var(--label-font);
  overflow: hidden;
}

.calibration-details summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 9px 42px 9px 16px;
  color: var(--text);
  font-size: 0.98rem;
  font-weight: 400;
  line-height: var(--leading-ui);
}

.calibration-details summary::-webkit-details-marker,
.calibration-details summary::marker {
  display: none;
}

.calibration-details summary::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 18px;
  width: 9px;
  height: 9px;
  border-right: 1.6px solid var(--text-muted);
  border-bottom: 1.6px solid var(--text-muted);
  transform: translateY(-65%) rotate(45deg);
  transition: transform 0.2s var(--ease-out), border-color 0.2s var(--ease-out);
}

.calibration-details[open] summary::after {
  transform: translateY(-35%) rotate(-135deg);
  border-color: var(--accent);
}

.calibration-details summary:focus-visible,
.calibration-tab-btn:focus-visible {
  outline: 3px solid rgba(var(--accent-rgb), 0.22);
  outline-offset: 3px;
}

.calibration-details-body {
  padding: 0 18px 18px;
  border-top: 0;
}

.calibration-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 0;
}

.calibration-tab-btn {
  min-height: 36px;
  border: 1px solid var(--border-hi);
  border-radius: 999px;
  background: var(--surface-hi);
  color: var(--text-muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.98rem;
  font-weight: 650;
  padding: 0 13px;
  transition: background 0.16s var(--ease-out), border-color 0.16s var(--ease-out), color 0.16s var(--ease-out), transform 0.16s var(--ease-out);
}

.calibration-tab-btn:hover {
  color: var(--text);
  border-color: rgba(var(--accent-rgb), 0.34);
  transform: translateY(-1px);
}

.calibration-tab-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.calibration-tabs .calibration-tab-btn {
  font-size: 0.98rem;
  font-weight: 700;
}

.calibration-tab-panel {
  display: none;
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 0;
  scroll-margin-top: 0;
}

.calibration-tab-panel.active {
  display: block;
}

.calibration-panel {
  display: grid;
  gap: 16px;
  width: 100%;
  min-width: 0;
}

.calibration-panel-copy {
  max-width: 720px;
}

.calibration-panel-copy h4 {
  margin-bottom: 0.4rem;
  color: var(--text);
  font-size: 1.05rem;
}

.calibration-panel-copy p {
  color: var(--text-soft);
  font-size: 1.2rem;
  line-height: 1.65;
}

.calibration-panel figcaption {
  font-family: inherit;
  font-size: 0.98rem;
}

.calibration-panel figure {
  display: grid;
  justify-items: center;
  width: 100%;
  min-width: 0;
  margin: 0;
}

.calibration-panel-image {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  min-height: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-hi);
  object-fit: contain;
  object-position: center;
}

.method-figure figcaption,
.method-overview-figure figcaption,
.alignment-summary-card figcaption,
.calibration-panel figcaption {
  text-align: left;
  text-align-last: left;
}

.policy-flow,
.rl-flow {
  margin-top: 1.45rem;
}

.policy-flow {
  display: grid;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow-md);
}

.policy-flow-row,
.rl-loop-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.policy-flow-row--sources {
  align-items: stretch;
}

.policy-flow-stack {
  display: grid;
  gap: 8px;
  min-width: min(100%, 220px);
}

.policy-flow-branch {
  display: grid;
  gap: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--border-hi);
}

.policy-flow-node,
.rl-flow-node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-hi);
  color: var(--text);
  font-size: 0.84rem;
  font-weight: 650;
  line-height: 1.35;
  text-align: center;
}

.policy-flow-node--large {
  min-width: min(100%, 230px);
}

.policy-flow-node--data {
  color: var(--text-soft);
  background: #fbfbfc;
}

.policy-flow-node--tactile,
.rl-flow-node--actor {
  border-color: rgba(var(--accent-rgb), 0.25);
  background: rgba(var(--accent-rgb), 0.08);
  color: var(--accent);
}

.policy-flow-node--policy,
.rl-flow-node--policy {
  border-color: rgba(var(--blue-rgb), 0.25);
  background: rgba(var(--blue-rgb), 0.08);
  color: var(--blue);
}

.policy-flow-arrow,
.rl-flow-arrow {
  color: var(--text-muted);
  font-family: "Consolas", "Courier New", monospace;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}

.method-takeaway,
.deployment-note {
  margin-top: 1rem;
  padding: 14px 16px;
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(var(--accent-rgb), 0.08);
  color: var(--text-soft);
  font-size: 0.88rem;
  line-height: 1.6;
}

.rl-flow {
  display: grid;
  gap: 14px;
}

.rl-training-shell,
.rl-deployment-strip {
  position: relative;
  display: grid;
  gap: 14px;
  padding: 34px 18px 18px;
  border: 1px dashed var(--border-hi);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.72);
}

.training-only-label {
  position: absolute;
  top: 10px;
  left: 14px;
  color: var(--text-muted);
  font-family: "Consolas", "Courier New", monospace;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
}

.rl-loop-row--aux {
  align-items: stretch;
}

.rl-flow-node--aux {
  color: var(--text-soft);
  background: #fbfbfc;
}

.rl-flow-node--deployment {
  border-color: rgba(var(--accent-rgb), 0.3);
  background: var(--accent-soft);
  color: var(--accent);
}

.rl-flow-node small {
  display: block;
  margin-top: 2px;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 500;
}

.rl-deployment-strip {
  border-style: solid;
  background: rgba(var(--accent-rgb), 0.05);
}

/* Compact second-pass Method */
.method-overview {
  margin-bottom: 1.2rem;
}

.method-block {
  min-width: 0;
}

.method-block-header {
  margin-bottom: 0.72rem;
}

.method-stage-summary .method-block-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.48rem;
}

.method-block-eyebrow,
.results-eyebrow,
.stage-evidence-eyebrow {
  font-family: var(--label-font);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.method-block-eyebrow,
.results-eyebrow,
.stage-evidence-eyebrow {
  display: inline-flex;
  margin-bottom: 0.45rem;
  color: var(--accent);
}

.method-stage-summary .method-block-eyebrow {
  margin-bottom: 0;
}

.method-block-title {
  margin-bottom: 0;
  color: var(--text);
  font-size: 0.96rem;
  font-weight: 700;
  line-height: 1.45;
  text-transform: uppercase;
}

.method-stage-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.61fr) minmax(0, 0.97fr);
  gap: clamp(18px, 2.4vw, 30px);
  margin-top: 1.25rem;
  align-items: start;
}

.method-stage-summary {
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.method-block-subtitle {
  margin: 0 0 0.45rem;
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 400;
  line-height: 1.45;
}

.method-block-copy {
  color: var(--text-soft);
}

.method-pipeline-figure {
  width: 100%;
  margin:0.6rem 0 0;
}

.method-pipeline-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.alignment-summary-grid {
  margin-top: 1rem;
}

.alignment-summary-image {
  min-height: 168px;
  padding: 10px;
}

.alignment-summary-image img {
  max-height: 210px;
}

.alignment-summary-card figcaption {
  padding: 12px 14px 14px;
  font-size: 0.98rem;
  line-height: 1.5;
}

.calibration-details {
  margin-top: 0.55rem;
}

.numerical-analysis-section {
  margin-top: 2.4rem;
}

.tactile-flow {
  display: grid;
  gap: 12px;
  margin-top: 1rem;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.tactile-flow-main,
.tactile-flow-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
}

.tactile-flow-branch {
  display: grid;
  gap: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--border-hi);
}

.tactile-flow-node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-hi);
  font-size: 0.82rem;
  font-weight: 650;
  line-height: 1.32;
  text-align: center;
}

.tactile-flow-node--tactile {
  border-color: rgba(var(--accent-rgb), 0.25);
  background: rgba(var(--accent-rgb), 0.08);
  color: var(--accent);
}

.tactile-flow-node--policy {
  border-color: rgba(var(--blue-rgb), 0.25);
  background: rgba(var(--blue-rgb), 0.08);
  color: var(--blue);
}

.tactile-flow-arrow {
  color: var(--text-muted);
  font-family: "Consolas", "Courier New", monospace;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
}

.tactile-flow-note {
  width: fit-content;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-muted);
  background: #fbfbfc;
  font-size: 0.76rem;
}

/* Video-first Experiments */
.task-figure,
.task-explorer,
.real-rollout-video-figure,
.results-details {
  width: min(var(--max-w), calc(100vw - 96px));
  margin-left: 50%;
  transform: translateX(-50%);
}

.real-rollout-overview {
  margin-top: 0;
  margin-bottom: 2.2rem;
}

.real-rollout-overview-header {
  max-width: var(--max-w);
}

.real-rollout-video-figure {
  margin-top: 1rem;
}

.real-rollout-video-shell {
  position: relative;
  overflow: hidden;
  border: 0;
  border-radius: 12px;
  background: transparent;
  box-shadow: none;
}

.real-rollout-video {
  width: 100%;
  height: auto;
  border-radius: 12px;
  background: transparent;
  object-fit: contain;
}

.real-rollout-video-shell--labeled .real-rollout-video {
  object-fit: contain;
}

.rollout-task-labels {
  position: absolute;
  top: 0;
  right: 14px;
  bottom: 0;
  z-index: 2;
  display: grid;
  grid-template-rows: repeat(4, 1fr);
  align-items: center;
  justify-items: end;
  list-style: none;
  margin: 0;
  padding: 0;
  color: #fff;
  font-size: clamp(1rem, 1.35vw, 1.35rem);
  font-weight: 620;
  line-height: 1.15;
  text-align: right;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.75);
  transform: translateY(-2em);
  pointer-events: none;
}

.rollout-speed-label {
  position: absolute;
  right: 14px;
  bottom: 12px;
  z-index: 2;
  color: #fff;
  font-size: clamp(1rem, 1.35vw, 1.35rem);
  font-weight: 620;
  line-height: 1.15;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.75);
  pointer-events: none;
}

.experiment-block {
  margin-top: 2.4rem;
}

.experiment-block:first-of-type {
  margin-top: 0;
}

.simreal-alignment-section {
  display: flex;
  flex-direction: column;
}

.simreal-alignment-section .numerical-analysis-section {
  order: -1;
  margin-top: 0.4rem;
  margin-bottom: 2.4rem;
}

/* .experiment-block-header {
  margin-bottom: 1rem;
} */

.numerical-analysis-section > .experiment-block-header {
  margin-bottom: 0;
}

#experiments .numerical-analysis-section > .experiment-block-header .results-eyebrow {
  margin-bottom: 0.8rem;
  line-height: 1.05;
}

#experiments .results-eyebrow {
  color: var(--text);
  font-family: var(--label-font);
  font-size: 1.0rem;
  font-weight: 700;
  line-height: 1.3;
}

.experiment-block-header h3 {
  max-width: 780px;
  margin-bottom: 0;
  color: var(--text-soft);
  font-size: 1.2rem;
  font-weight: 400;
  line-height: var(--leading-body);
}

.simulator-rl-video-figure,
.simulation-rl-video-figure {
  width: 100%;
  margin-top: 1rem;
}

.simulator-rl-video-shell,
.simulation-rl-video-shell {
  overflow: hidden;
  border: 0;
  border-radius: 12px;
  background: transparent;
  box-shadow: none;
}

.simulator-rl-video,
.simulation-rl-video {
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  border-radius: 12px;
  background: transparent;
  object-fit: contain;
}

.task-explorer {
  margin-top: 2.2rem;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  font-family: var(--label-font);
}

.task-explorer-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(190px, 0.48fr);
  column-gap: 18px;
  row-gap: 0;
  align-items: stretch;
}

.task-explorer-copy {
  display: contents;
}

.task-explorer-copy .results-eyebrow {
  grid-column: 1;
  grid-row: 1;
}

.task-explorer-copy .task-selector {
  grid-column: 1;
  grid-row: 2;
}

.task-explorer-copy p {
  grid-column: 1;
  grid-row: 3;
}

.task-explorer-chart {
  grid-column: 2;
  grid-row: 1 / 4;
  height: 100%;
}

.task-explorer-copy p {
  color: var(--text-soft);
  font-family: "Segoe UI", "Aptos", Arial, sans-serif;
  font-size: 1.2rem;
  line-height: 1.72;
}

.task-explorer-copy h3 {
  color: var(--text-soft);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.72;
  margin-bottom: 0.45rem;
}

.task-score-card {
  display: grid;
  gap: 8px;
  height: 94%;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 10px 28px rgba(39, 33, 50, 0.08);
  font-family: var(--label-font);
  font-size: 0.98rem;
}

.task-score-card-head {
  display: grid;
  gap: 2px;
  margin-bottom: 2px;
  text-align: center;
}

.task-score-card-eyebrow {
  color: var(--accent);
  font-family: var(--label-font);
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.35;
  text-transform: none;
}

.task-score-card-title {
  color: var(--text);
  font-size: 0.98rem;
  font-weight: 650;
  line-height: 1.25;
}

.task-score-bar {
  position: relative;
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 8px;
  align-items: center;
  min-height: 28px;
  overflow: hidden;
}

.task-score-bar::before {
  content: "";
  position: absolute;
  left: 56px;
  top: 16px;
  bottom: 5px;
  width: calc((100% - 56px) * var(--score) / 100);
  border-radius: 999px;
  background: rgba(var(--accent-rgb), 0.18);
  transition: width 0.48s var(--ease-out);
}

.task-score-bar--no-tactile::before {
  background: rgba(var(--blue-rgb), 0.12);
}

.task-score-bar--no-rl::before {
  background: rgba(107, 97, 120, 0.12);
}

.task-score-bar-value,
.task-score-bar-label {
  position: relative;
  z-index: 1;
}

.task-score-bar-value {
  color: var(--accent);
  font-size: 0.98rem;
  font-weight: 760;
  text-align: right;
}

.task-score-bar--no-tactile .task-score-bar-value {
  color: var(--blue);
}

.task-score-bar--no-rl .task-score-bar-value {
  color: var(--text-muted);
}

.task-score-bar-label {
  color: var(--text-soft);
  font-size: 0.98rem;
  font-weight: 400;
  line-height: 1.2;
}

.task-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 0.55rem 0 0.75rem;
}

.task-selector-btn {
  min-height: 38px;
  border: 1px solid var(--border-hi);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--text-muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.98rem;
  font-weight: 650;
  padding: 0 14px;
  transition: transform 0.16s var(--ease-out), border-color 0.16s var(--ease-out), background 0.16s var(--ease-out), color 0.16s var(--ease-out);
}

.task-selector-btn:hover {
  color: var(--text);
  border-color: rgba(var(--accent-rgb), 0.32);
  transform: translateY(-1px);
}

.task-selector-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.task-selector-btn:focus-visible,
.results-details summary:focus-visible {
  outline: 3px solid rgba(var(--accent-rgb), 0.22);
  outline-offset: 3px;
}

.task-panel {
  display: none;
  margin-top: 1rem;
}

.task-panel.active {
  display: block;
}

.task-rollout-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.task-rollout-column {
  min-width: 0;
}

.task-rollout-label {
  margin-bottom: 0.55rem;
  font-size: 0.98rem;
  font-weight: 700;
}

.task-rollout-media {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
}

.task-rollout-media .media-placeholder {
  border-radius: 0;
  padding: 16px;
}

.task-ablation-video {
  width: 100%;
  height: 100%;
  background: transparent;
  object-fit: cover;
}

.task-rollout-subtitle {
  margin-top: 0.55rem;
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.45;
}

.stage-evidence-section {
  margin-top: 2.3rem;
}

.stage-evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 1rem;
}

.stage-evidence-card {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.stage-evidence-value {
  display: block;
  margin-bottom: 0.7rem;
  color: var(--accent);
  font-family: "Consolas", "Courier New", monospace;
  font-size: 1.35rem;
  line-height: 1;
}

.stage-evidence-title {
  margin-bottom: 0.45rem;
  font-size: 0.96rem;
}

.stage-evidence-copy {
  color: var(--text-soft);
  font-size: 0.8rem;
  line-height: 1.55;
}

.results-details {
  margin-top: 1.2rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.results-details summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 9px 42px 9px 16px;
  color: var(--text);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
}

.results-details summary::-webkit-details-marker,
.results-details summary::marker {
  display: none;
}

.results-details summary::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 18px;
  width: 9px;
  height: 9px;
  border-right: 1.6px solid var(--text-muted);
  border-bottom: 1.6px solid var(--text-muted);
  transform: translateY(-65%) rotate(45deg);
}

.results-details[open] summary::after {
  transform: translateY(-35%) rotate(-135deg);
  border-color: var(--accent);
}

.results-details-body {
  padding: 18px;
  border-top: 1px solid var(--border);
}

.results-table-stack {
  display: grid;
  gap: 18px;
  margin-top: 1.8rem;
}

/* Experiment tabs and comparison slots */
.comparison-intro {
  margin-top: 1.8rem;
}

.tab-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 1.2rem 0 1rem;
}

.tab-btn {
  min-height: 38px;
  border: 1px solid var(--border-hi);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--text-muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.98rem;
  font-weight: 650;
  line-height: 1;
  padding: 0 15px;
  transition: transform 0.16s var(--ease-out), box-shadow 0.16s var(--ease-out), border-color 0.16s var(--ease-out), background 0.16s var(--ease-out), color 0.16s var(--ease-out);
}

.tab-btn:hover {
  color: var(--text);
  border-color: rgba(var(--accent-rgb), 0.32);
  box-shadow: var(--shadow-xs);
  transform: translateY(-1px);
}

.tab-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 10px 24px -14px rgba(var(--accent-rgb), 0.8);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.comparison-video-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.comparison-video-card {
  overflow: hidden;
  border-radius: 10px;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.comparison-media {
  aspect-ratio: 16 / 9;
  background: transparent;
}

.comparison-media .media-placeholder {
  border-radius: 0;
  padding: 18px;
}

.comparison-media .media-placeholder-title {
  font-size: 0.92rem;
}

.comparison-media .media-placeholder-label {
  font-size: 0.67rem;
}

.comparison-card-head {
  padding: 15px 16px 17px;
}

.comparison-card-title {
  margin: 0.55rem 0 0.35rem;
  font-size: 1.02rem;
}

.comparison-card-subtitle {
  color: var(--text-muted);
  font-size: 1.2rem;
  line-height: 1.5;
  margin: 0;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 9px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
}

.results-block {
  margin-top: 2.5rem;
}

/* Metrics and results */
.metric-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 1.7rem;
}

.metric-card {
  border-radius: var(--radius);
  padding: 22px 20px;
}

.metric-value {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--accent);
  font-family: "Consolas", "Courier New", monospace;
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
}

.metric-card p {
  color: var(--text-soft);
  font-size: 1.2rem;
  line-height: 1.55;
}

.wide-figure {
  width: 100%;
}

.compact-figure {
  margin-top: 1.35rem;
}

.table-wrap {
  margin-top: 1.9rem;
  border-radius: 10px;
  border: 0;
  padding: 0;
  overflow-x: visible;
  background: transparent;
  box-shadow: none;
  font-family: var(--label-font);
}

.table-wrap h3,
.wide-figure > h3,
.alignment-summary-card > p {
  margin: 0.75rem 0 0;
  color: var(--text);
  font-family: var(--label-font);
  font-size: 0.98rem;
  font-weight: 400 !important;
  line-height: var(--leading-ui);
  text-align: center;
}

.analysis-section {
  padding-bottom: 1.15rem;
  border-bottom: 1px solid var(--border);
}

.analysis-section:last-child {
  border-bottom: 0;
}

.numerical-analysis-body > .analysis-section:first-child {
  margin-top: -0.9rem;
}

.analysis-section + .analysis-section {
  margin-top: 0.3rem;
}

.analysis-section > p {
  margin-bottom: 0;
  color: var(--text-soft);
  font-size: 1.2rem;
  line-height: var(--leading-body);
}

.analysis-section > p + .wide-figure,
.analysis-section > p + .table-wrap {
  margin-top: 0.8rem;
}

.analysis-section > .wide-figure,
.analysis-section > .table-wrap {
  margin-bottom: 0;
}

.score-table {
  width: 100%;
  min-width: 0;
  table-layout: fixed;
  border-collapse: collapse;
  font-size: 0.98rem;
  line-height: 1.35;
}

.score-table th,
.score-table td {
  padding: 10px 9px;
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.score-table td {
  font-size: 0.98rem;
}

.score-table th:first-child,
.score-table td:first-child {
  width: 28%;
  text-align: left;
}

.score-table thead th {
  color: var(--accent);
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0;
}

.score-table tbody th {
  color: var(--text);
  font-weight: 400;
}

.best-row {
  background: var(--accent-soft);
}

.mobile-score-list {
  display: none;
}

.mobile-score-list article {
  padding: 15px 0;
  border-top: 1px solid var(--border);
}

.score-pairs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.score-pairs p {
  margin: 0;
  padding: 10px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  font-size: 0.98rem;
}

.score-pairs span,
.score-pairs strong {
  display: block;
}

.score-pairs span {
  color: var(--text-muted);
  font-size: 0.76rem;
}

.score-pairs strong {
  margin-top: 4px;
  color: var(--accent);
  font-family: "Consolas", "Courier New", monospace;
  font-size: 0.9rem;
  font-weight: 700;
}

.mobile-score-note {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 0.98rem;
}

/* Analysis */
.analysis-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 16px;
  margin-top: 1.7rem;
}

.figure-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface-hi);
}

.figure-card figcaption {
  padding: 12px 14px 14px;
  margin-top: 0;
  font-size: 0.98rem;
}

/* Shared type rhythm */
.body-text,
#abstract > p,
.experiment-block-header h3,
.task-explorer-copy p,
.calibration-panel-copy p,
.metric-card p,
.stage-evidence-copy,
.comparison-card-subtitle {
  line-height: var(--leading-body);
}

.method-block-copy p,
figcaption,
.alignment-summary-card figcaption,
.calibration-panel figcaption,
.figure-card figcaption,
.task-rollout-subtitle,
.mobile-score-note {
  line-height: var(--leading-compact);
}

.method-block-copy p {
  margin-bottom: var(--paragraph-gap);
  font-size: 1.2rem;
}

.method-block-copy p:last-child {
  margin-bottom: 0;
}

.table-wrap h3,
.score-table,
.score-table th,
.score-table td,
.task-score-card,
.task-score-card-eyebrow,
.task-score-card-title,
.task-score-bar-value,
.task-score-bar-label,
.task-rollout-label,
.score-pairs p,
.task-selector-btn,
.tab-btn,
.calibration-details summary,
.calibration-tab-btn,
.method-block-eyebrow,
.results-eyebrow,
.stage-evidence-eyebrow {
  line-height: var(--leading-ui);
}

.task-figure img,
.teaser-figure img,
.figure-shell,
.figure-card,
.alignment-summary-card,
.alignment-summary-image,
.calibration-panel-image {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}

#footer {
  max-width: none;
  width: 100%;
  margin-top: 24px;
  padding: 44px 0 56px;
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
}

#footer .container {
  text-align: center;
}

#footer p {
  color: var(--text-muted);
  font-size: 0.806rem;
}

.section-reveal {
  opacity: 0;
  transform: translateY(90px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}

.section-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1180px) {
  #toc-nav {
    left: 14px;
    width: 232px;
  }
}

@media (max-width: 900px) {
  .paper-preview-strip {
    padding-top: 0;
  }

  .method-stage-card,
  .method-stage-card-flip,
  .analysis-grid,
  .alignment-summary-grid,
  .metric-row,
  .comparison-video-grid,
  .method-stage-row,
  .stage-evidence-grid,
  .task-rollout-grid {
    grid-template-columns: 1fr;
  }

  .alignment-summary-card--combined .alignment-summary-grid {
    grid-template-columns: 1fr;
  }

  .task-explorer-head {
    grid-template-columns: 1fr;
    row-gap: 0;
  }

  .task-explorer-copy {
    display: block;
  }

  .task-explorer-copy .results-eyebrow,
  .task-explorer-copy .task-selector,
  .task-explorer-copy p,
  .task-explorer-chart {
    grid-column: auto;
    grid-row: auto;
  }

  .task-explorer-chart {
    height: auto;
  }

  .method-stage-card-flip .method-stage-media,
  .method-stage-card-flip .method-stage-copy {
    order: initial;
  }

  .comparison-video-grid {
    gap: 16px;
  }
}

@media (max-width: 768px) {
  section {
    width: calc(100vw - (var(--pad-x) * 2));
    padding: 20px 0;
  }

  #hero-title {
    min-height: 100vh;
    height: auto;
    padding: 0;
  }

  .title-line {
    max-width: 100%;
  }

  .title-main {
    font-size: clamp(1.55rem, 6.5vw, 2.35rem);
    line-height: 1.08;
  }

  .title-line-part {
    white-space: normal;
  }

  h2 {
    font-size: 1.55rem;
  }

  .hero-tagline {
    max-width: 100%;
    font-size: 1.45rem;
  }

  .hero-action-btn {
    min-height: 58px;
    padding: 0 24px;
    font-size: 1.45rem;
  }

  .media-placeholder-large {
    min-height: 220px;
  }

  .method-stage-card,
  .method-stage-card-text-only {
    padding: 18px;
  }

  .method-stage-header {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .task-figure,
  .task-explorer,
  .real-rollout-video-figure,
  .results-details {
    width: 100%;
    margin-left: 0;
    transform: none;
  }

  .tactile-flow-main,
  .tactile-flow-row {
    align-items: stretch;
    flex-direction: column;
  }

  .tactile-flow-node {
    width: 100%;
  }

  .tactile-flow-arrow {
    align-self: center;
  }

  .policy-flow-row,
  .rl-loop-row {
    align-items: stretch;
    flex-direction: column;
  }

  .policy-flow-node,
  .rl-flow-node,
  .policy-flow-stack {
    width: 100%;
  }

  .policy-flow-arrow,
  .rl-flow-arrow {
    align-self: center;
  }

  .calibration-tabs {
    gap: 7px;
  }

  .calibration-tab-btn {
    flex: 1 1 calc(50% - 7px);
  }

  .score-pairs {
    grid-template-columns: 1fr;
  }

  .score-table {
    display: none;
  }

  .mobile-score-list {
    display: block;
  }

  .pale-shell {
    padding: 10px;
  }
}

@media (max-width: 640px) {
  #toc-nav {
    display: none;
  }

  body {
    font-size: 16px;
  }

  .body-text,
  #abstract > p {
    font-size: 1rem;
  }

  .title-main {
    font-size: 2rem;
  }

  .tab-bar {
    gap: 7px;
  }

  .tab-btn {
    flex: 1 1 calc(50% - 7px);
    padding: 0 10px;
    font-size: 0.8rem;
  }

  .task-selector-btn {
    flex: 1 1 calc(50% - 7px);
    padding: 0 10px;
    font-size: 0.78rem;
  }

  .results-details-body {
    padding: 14px;
  }

  .task-explorer {
    padding: 0;
  }

  .stage-evidence-value {
    font-size: 1.2rem;
  }

  .media-placeholder-title {
    font-size: 0.98rem;
  }
}

@media (max-width: 380px) {
  :root {
    --pad-x: 18px;
  }

  .title-main {
    font-size: 1.76rem;
  }

  .hero-actions {
    width: 100%;
  }

  .hero-action-btn {
    flex: 1 1 120px;
  }

  .tab-btn {
    flex-basis: 100%;
  }

  .task-selector-btn {
    flex-basis: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .section-reveal {
    opacity: 1;
    transform: none;
  }
}