.paper-container {
  max-width: 820px;
}

.paper-video { margin: 2.5rem 0; border: 1px solid var(--line); background: var(--white); }
.paper-video-stage { background: #181818; aspect-ratio: 16 / 9; }
.paper-video video, .paper-video canvas { display: block; width: 100%; height: 100%; object-fit: contain; }
.paper-video [hidden] { display: none !important; }
.paper-video-controls { display: flex; align-items: center; flex-wrap: wrap; gap: .75rem; padding: .8rem; font: .85rem var(--sans); }
.paper-video-controls button { min-height: 44px; padding: .5rem .75rem; border: 1px solid var(--line); border-radius: 4px; background: var(--paper); color: var(--text); cursor: pointer; }
.paper-video-controls input { flex: 1; min-width: 80px; accent-color: var(--teal); }
.paper-video-controls output { font-variant-numeric: tabular-nums; }
.paper-video-controls :focus-visible { outline: 3px solid var(--teal); outline-offset: 3px; }
.paper-video figcaption { padding: .8rem 1rem 1rem; font: .85rem/1.6 var(--sans); color: var(--text-dim); }
.paper-video:fullscreen { display: flex; flex-direction: column; justify-content: center; background: var(--paper); overflow: auto; width: 100%; height: 100%; margin: 0; }
.paper-video:fullscreen .paper-video-stage { flex: 1; min-height: 0; aspect-ratio: auto; }
@media (max-width: 480px) { .paper-video-controls input { flex-basis: 40%; } .paper-video-controls output { font-size: .75rem; } }

.paper-archive,
.paper-masthead {
  padding: clamp(4.5rem, 8vw, 7.5rem) 0;
}

.paper-archive {
  min-height: 72vh;
}

.paper-archive-hero .document-intro p {
  max-width: 42ch;
}

.paper-masthead h1 {
  max-width: 18ch;
}

.paper-grid {
  display: grid;
  gap: 1px;
  margin-top: 0;
  border: 1px solid var(--line);
  background: var(--line);
}

.paper-card {
  padding: clamp(1.5rem, 4vw, 2.4rem);
  background: var(--white);
}

.paper-card:nth-child(even) {
  background: var(--surface);
}

.paper-card:nth-child(odd) {
  background: var(--white);
}

.paper-card h2 {
  margin-bottom: .7rem;
  font-size: clamp(1.65rem, 3vw, 2.2rem);
  max-width: 28ch;
}

.paper-card h2 a:hover,
.paper-back a:hover,
.paper-sequence a:hover strong {
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: .15em;
}

.paper-meta {
  color: var(--text-faint);
  font-size: .86rem;
  font-weight: 600;
  margin: 1.35rem 0 0;
}

.paper-page {
  background: var(--paper);
}

.paper-masthead {
  background: var(--ink);
  color: var(--text-light);
}

.paper-masthead .eyebrow {
  color: var(--accent);
}

.paper-breadcrumb {
  display: flex;
  gap: .5rem;
  align-items: center;
  margin-bottom: 1.25rem;
  font-family: var(--sans);
  font-size: .82rem;
  color: var(--text-light-dim);
}
.paper-breadcrumb a {
  color: inherit;
}
.paper-breadcrumb a:hover {
  color: var(--accent);
}

.paper-masthead h1 {
  color: var(--text-light);
  font-size: clamp(2.25rem, 3vw, 2.75rem);
  line-height: 1.06;
  max-width: 17ch;
}

.paper-summary {
  max-width: 60ch;
  color: var(--text-light-dim);
  font-size: 1.2rem;
}

.paper-masthead .paper-meta {
  color: #91a39c;
}

.paper-body {
  padding-top: clamp(3.5rem, 7vw, 6rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
  font-family: var(--serif);
  font-size: clamp(1.08rem, 1.8vw, 1.22rem);
  line-height: 1.82;
}

.paper-body p,
.paper-body li {
  color: var(--text);
}

.paper-body p {
  margin-bottom: 1.5rem;
}

.paper-body h2,
.paper-body h3 {
  margin-top: 2.8rem;
  max-width: 28ch;
}

.paper-body h2 {
  font-size: clamp(1.8rem, 4vw, 2.55rem);
}

.paper-body h3 {
  font-size: clamp(1.45rem, 3vw, 1.9rem);
}

.paper-body ul,
.paper-body ol {
  margin: 0 0 1.8rem 1.25rem;
  padding-left: 1rem;
}

.paper-body li {
  margin: .45rem 0;
}

.paper-body blockquote {
  margin: 2.5rem 0;
  padding: .3rem 0 .3rem 1.5rem;
  border-left: 3px solid var(--accent);
}

.paper-body blockquote p {
  margin: 0;
  font-size: 1.2em;
  font-weight: 600;
}

.paper-body a {
  text-decoration: underline;
  text-decoration-color: var(--teal);
  text-underline-offset: .2em;
}

.paper-body hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 3rem 0;
}

.paper-provenance {
  margin-top: 4rem !important;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  color: var(--text-dim) !important;
  font-family: var(--sans);
  font-size: .86rem;
}

.paper-engagement {
  margin-top: 1rem;
  margin-bottom: 2.5rem;
  padding-top: 2rem;
  padding-bottom: 2rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.paper-engagement h2 {
  max-width: 22ch;
  margin-bottom: .75rem;
  font-size: clamp(1.7rem, 3vw, 2.25rem);
}
.paper-engagement > p:not(.eyebrow) {
  max-width: 58ch;
  margin-bottom: 1.5rem;
}
.paper-engagement-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}
.paper-btn-secondary {
  border-color: var(--line);
  background: transparent;
  color: var(--text);
}
.paper-btn-secondary:hover {
  border-color: var(--teal);
}


.paper-sequence {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-bottom: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.paper-sequence a {
  display: flex;
  flex-direction: column;
  gap: .45rem;
  padding: 1.5rem;
  background: var(--white);
}

.paper-sequence span {
  color: var(--text-faint);
  font-size: .76rem;
  font-weight: 700;
  text-transform: uppercase;
}

.paper-sequence strong {
  font-family: var(--serif);
  line-height: 1.25;
}

.paper-back {
  padding-top: 1.5rem;
  padding-bottom: 4rem;
  font-size: .9rem;
  font-weight: 700;
}

.section-papers-home {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.section-papers-home .btn-ghost {
  color: var(--text);
  border-color: var(--line);
}

@media (max-width: 720px) {
  .paper-sequence {
    grid-template-columns: 1fr;
  }

  .paper-archive,
  .paper-masthead {
    padding: 4rem 0;
  }
}