/* DM Sans (variable, 400-700) — vendored under the SIL Open Font License so the
   page makes no third-party requests. Re-download with build_assets.py --fonts. */
@font-face {
  font-family: 'DM Sans';
  font-style: italic;
  font-weight: 400 700;
  font-display: swap;
  src: url(static/fonts/dm-sans-latin-ext-italic.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'DM Sans';
  font-style: italic;
  font-weight: 400 700;
  font-display: swap;
  src: url(static/fonts/dm-sans-latin-italic.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url(static/fonts/dm-sans-latin-ext-normal.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url(static/fonts/dm-sans-latin-normal.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --oc-white:    #ffffff;
  --oc-black:    #000000;
  --oc-gray-0:   #f8f9fa;
  --oc-gray-1:   #f1f3f5;
  --oc-gray-2:   #e9ecef;
  --oc-gray-3:   #dee2e6;
  --oc-gray-4:   #ced4da;
  --oc-gray-5:   #adb5bd;
  --oc-gray-6:   #868e96;
  --oc-gray-7:   #495057;
  --oc-gray-8:   #343a40;
  --oc-gray-9:   #212529;
  --oc-blue-0:   #e7f5ff;
  --oc-blue-1:   #d0ebff;
  --oc-blue-2:   #a5d8ff;
  --oc-blue-4:   #4dabf7;
  --oc-blue-7:   #1c7ed6;
  --oc-blue-9:   #1864ab;
  --oc-green-0:  #ebfbee;
  --oc-green-7:  #37b24d;
  --oc-yellow-0: #fff9db;
  --oc-yellow-7: #f59f00;
  --oc-grape-0:  #f8f0fc;
  --oc-grape-7:  #ae3ec9;
}

:root {
  --bg: var(--oc-white);
  --panel: var(--oc-white);
  --panel-alt: var(--oc-gray-0);
  --ink: var(--oc-gray-9);
  --ink-soft: var(--oc-gray-7);
  --ink-faint: var(--oc-gray-6);
  --rule: var(--oc-gray-3);
  --accent: var(--oc-blue-9);
  --accent-soft: var(--oc-blue-0);
  --keep: var(--oc-green-7);
  --keep-soft: var(--oc-green-0);
  --motion: var(--oc-yellow-7);
  --motion-soft: var(--oc-yellow-0);
  --position: var(--oc-grape-7);
  --position-soft: var(--oc-grape-0);
  --btn: var(--oc-gray-9);
  --btn-ink: var(--oc-white);
  --shadow: #1864ab24;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --container: 72rem;
  --measure: 48rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: var(--oc-gray-9);
    --panel: var(--oc-gray-8);
    --panel-alt: #2b3035;
    --ink: var(--oc-white);
    --ink-soft: var(--oc-gray-4);
    --ink-faint: var(--oc-gray-5);
    --rule: var(--oc-gray-7);
    --accent: var(--oc-blue-4);
    --accent-soft: #1f3243;
    --keep: #69db7c;
    --keep-soft: #223629;
    --motion: #ffd43b;
    --motion-soft: #3d351c;
    --position: #da77f2;
    --position-soft: #382640;
    --btn: var(--oc-gray-0);
    --btn-ink: var(--oc-gray-9);
    --shadow: #00000073;
  }
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 5.5rem;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(52rem 26rem at 10% -6rem, var(--accent-soft), transparent 62%),
    radial-gradient(34rem 22rem at 92% 8rem, var(--keep-soft), transparent 62%),
    linear-gradient(180deg, var(--panel-alt) 0, var(--bg) 22rem);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  word-break: keep-all;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover { text-decoration-style: dotted; }

code, pre, kbd { font-family: var(--mono); }

code {
  font-size: 0.86em;
  background: var(--panel-alt);
  border-radius: 4px;
  padding: 0.08em 0.32em;
}

pre {
  margin: 0;
  background: var(--panel-alt);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.6;
  text-align: left;
}

pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}

.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.4rem;
}

section {
  padding: clamp(3.4rem, 7vw, 5.8rem) 0;
}

h1, h2, h3 {
  font-weight: 700;
  letter-spacing: 0;
}

h1 {
  max-width: 58rem;
  margin: 0 auto;
  font-size: clamp(2.45rem, 7vw, 5.5rem);
  line-height: 0.98;
}

h2 {
  margin: 0;
  font-size: clamp(1.9rem, 4vw, 3.1rem);
  line-height: 1.05;
}

h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  line-height: 1.25;
}

p { margin: 0; }

.grad { color: var(--accent); }

@supports (background-clip: text) or (-webkit-background-clip: text) {
  .grad {
    background-image: linear-gradient(100deg, var(--accent), var(--keep));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
}

.hero {
  padding: 1rem 0 clamp(2.6rem, 5vw, 4rem);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: fixed;
  top: 0.75rem;
  left: 50%;
  z-index: 50;
  width: min(calc(100% - 2rem), var(--container));
  min-height: 3rem;
  padding: 0.55rem 0.85rem;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  box-shadow: none;
  transform: translateX(-50%);
  transition:
    background-color 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 220ms ease;
}

.topbar.is-floating {
  border-color: color-mix(in srgb, var(--rule) 80%, transparent);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  box-shadow: 0 1rem 2.2rem -1.7rem var(--shadow);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.topbar.is-hidden {
  transform: translate(-50%, calc(-100% - 1rem));
}

.brand {
  color: var(--ink);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
}

.navlinks {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.25rem 1rem;
  font-size: 0.86rem;
  font-weight: 600;
}

.navlinks a {
  color: var(--ink-soft);
  text-decoration: none;
}

.navlinks a:hover { color: var(--accent); }

.hero-copy {
  margin: calc(clamp(2.2rem, 6vw, 4.8rem) + 3rem) auto 1.3rem;
  text-align: center;
}

.eyebrow,
.section-kicker,
.card-tag {
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.2;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  margin: 0 0 1rem;
  padding: 0.4rem 0.7rem;
  border: 1px solid color-mix(in srgb, var(--accent) 24%, transparent);
  border-radius: 999px;
  background: var(--accent-soft);
}

.authors {
  max-width: 48rem;
  margin: 1.15rem auto 0.28rem;
  color: var(--ink);
  font-size: clamp(0.98rem, 1.8vw, 1.1rem);
  font-weight: 700;
  line-height: 1.55;
}

.affil {
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.45;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
  margin: 1.5rem 0 1.35rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.45rem;
  padding: 0.48rem 1rem;
  border-radius: 999px;
  background: var(--btn);
  color: var(--btn-ink);
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  transition: opacity 0.15s, transform 0.15s, background 0.15s;
  white-space: nowrap;
}

.button:hover {
  opacity: 0.88;
  transform: translateY(-1px);
  text-decoration: none;
}

.button.ghost {
  background: var(--panel);
  color: var(--accent);
  border: 1px solid var(--rule);
}

.button.disabled {
  cursor: default;
  opacity: 0.48;
}

.button.disabled:hover {
  transform: none;
  opacity: 0.48;
}

.hero-reel {
  margin: 0 auto;
  max-width: 64rem;
}

figure { margin: 0; }

figure img,
figure video {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: var(--oc-black);
}

.tldr {
  max-width: 56rem;
  margin: 1.6rem auto 0;
  padding: 1.05rem 1.3rem;
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: var(--panel);
  box-shadow: 0 1.2rem 2.6rem -2.2rem var(--shadow);
  text-align: left;
}

.tldr ul {
  margin: 0.55rem 0 0;
  padding-left: 1.1rem;
}

.tldr li {
  margin: 0.5rem 0;
  color: var(--ink-soft);
  font-size: 1.02rem;
  line-height: 1.62;
}

.tldr li strong { color: var(--ink); }

.hero-reel video {
  border: 0;
  box-shadow: 0 1.7rem 4rem -1.4rem var(--shadow);
}

figcaption {
  max-width: var(--measure);
  margin: 0.8rem auto 0;
  color: var(--ink-soft);
  font-size: 0.87rem;
  line-height: 1.55;
  text-align: center;
}



.flow-card {
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 88%, transparent);
}

.section-kicker {
  margin-bottom: 0.75rem;
}

.section-head {
  max-width: var(--measure);
  margin: 0 auto 2rem;
  text-align: center;
}

.section-head p {
  margin-top: 0.85rem;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.story {
  padding-top: clamp(3.2rem, 6vw, 5rem);
}

.flow-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
}

.problem-figure {
  max-width: 64rem;
  margin: 0 auto 1.6rem;
}

.problem-figure img {
  background: var(--panel);
}

.flow-card {
  padding: 1.15rem 1.2rem;
  min-height: 13.5rem;
}

.flow-card h3 {
  margin-top: 0.75rem;
  font-size: 1.22rem;
}

.flow-card p {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.flow-card.fixed .card-tag { color: var(--ink-faint); }
.flow-card.active { border-color: color-mix(in srgb, var(--accent) 42%, var(--rule)); background: var(--accent-soft); }
.flow-card.saved { border-color: color-mix(in srgb, var(--keep) 38%, var(--rule)); background: var(--keep-soft); }
.flow-card.saved .card-tag { color: var(--keep); }

.trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.85rem;
}

.clip .label {
  margin-bottom: 0.45rem;
  color: var(--ink-faint);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-align: center;
  text-transform: uppercase;
}

.comparison {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.85rem;
  margin-bottom: 1.45rem;
}

.result-highlight {
  max-width: var(--measure);
  margin: 0 auto 1.45rem;
  color: var(--ink-soft);
  font-size: 1.16rem;
  line-height: 1.6;
  text-align: center;
}

.result-highlight strong {
  color: var(--ink);
  font-weight: 800;
}

.table-wrap {
  margin: 0;
  overflow-x: auto;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: var(--panel);
}

table {
  width: 100%;
  min-width: 42rem;
  border-collapse: collapse;
  font-size: 0.88rem;
  font-variant-numeric: tabular-nums;
}

th,
td {
  padding: 0.68rem 0.75rem;
  border-bottom: 1px solid var(--rule);
  text-align: right;
  white-space: nowrap;
}

th:first-child,
td:first-child {
  text-align: left;
}

thead th {
  color: var(--ink-faint);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

tbody tr:last-child td { border-bottom: 0; }
tbody tr.ours { background: var(--accent-soft); }
tbody tr.ours td { font-weight: 700; }

.note {
  max-width: var(--measure);
  margin: 0.8rem auto 0;
  color: var(--ink-faint);
  font-size: 0.82rem;
  line-height: 1.55;
  text-align: center;
}

.method-copy {
  max-width: var(--measure);
  margin: 1.45rem auto 0;
  color: var(--ink-soft);
  font-size: 1.02rem;
  line-height: 1.7;
  text-align: left;
}

.method-copy p + p {
  margin-top: 0.9rem;
}

.method-copy strong {
  color: var(--ink);
}

.architecture {
  margin-top: 1.75rem;
}

.figure-light {
  padding: 1rem;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: var(--oc-white);
}

.figure-light img {
  border: 0;
  border-radius: 0;
  background: none;
}

.generation-group {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 1.65rem 0;
  border-top: 1px solid var(--rule);
  color: var(--ink-soft);
  font-size: 1.02rem;
  line-height: 1.66;
  text-align: left;
}

.generation-group-lead {
  padding-top: 0;
  border-top: 0;
}

.generation-subtitle {
  margin-bottom: 0.5rem;
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  line-height: 1.35;
  text-transform: none;
}

.generation-group p + p {
  margin-top: 0.7rem;
}

.paper-figure {
  margin: 1.2rem 0 0;
}

.paper-figure img {
  border: 0;
  border-radius: 0;
  background: none;
}

.paper-figure figcaption {
  margin-top: 0.65rem;
}

.generation-wide {
  margin-bottom: 0;
}

.generation-methods {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1.25rem;
}

.generation-method img {
  border: 0;
  border-radius: 0;
  background: none;
}

.generation-method figcaption {
  max-width: none;
  margin-top: 0.55rem;
  color: var(--ink-soft);
  font-size: 0.86rem;
  line-height: 1.45;
  text-align: left;
}

.generation-method figcaption strong {
  color: var(--ink);
}

.generation-result-line {
  margin-top: 1rem;
  color: var(--ink-soft);
  font-size: 0.96rem;
  line-height: 1.6;
  text-align: left;
}

.budget-preview {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.8rem;
  margin-top: 0.9rem;
}

.future-clip .label {
  margin-bottom: 0.45rem;
  color: var(--ink-faint);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  line-height: 1.2;
  text-align: center;
  text-transform: uppercase;
}




.bibtex {
  max-width: var(--measure);
  margin: 0 auto;
}

table.compact {
  min-width: 30rem;
}

table.compact td:last-child {
  text-align: right;
}

.pending {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 9rem;
  padding: 1.25rem;
  border: 1px dashed var(--rule);
  border-radius: 8px;
  background: var(--panel-alt);
  color: var(--ink-faint);
  font-size: 0.82rem;
  text-align: center;
}

footer {
  border-top: 1px solid var(--rule);
  margin-top: 1rem;
  padding: 2rem 0 3.4rem;
  color: var(--ink-faint);
  font-size: 0.85rem;
  text-align: center;
}

@media (max-width: 58rem) {
  .flow-cards,
  .comparison,
  .trio,
  .generation-methods {
    grid-template-columns: 1fr;
  }

  .budget-preview {
    grid-template-columns: repeat(2, 1fr);
  }

  .trio {
    max-width: 28rem;
    margin-inline: auto;
  }
}

@media (max-width: 42rem) {
  html {
    scroll-padding-top: 8rem;
  }

  body {
    font-size: 16px;
  }

  .wrap {
    padding: 0 1rem;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.45rem;
  }

  .navlinks {
    justify-content: flex-start;
  }

  .hero-copy {
    margin-top: 6.4rem;
    text-align: left;
  }

  h1 {
    font-size: clamp(2.35rem, 15vw, 4.1rem);
  }

  .hero-actions {
    justify-content: flex-start;
  }

  .budget-preview {
    grid-template-columns: 1fr;
  }


}