/* Fit the introduction and scroll cue inside the initial viewport. */
/* Quiet, static circuit traces live at the edge of the page. No filters,
   animation, or interactive layers; the reading area fades to plain space. */
.hero-grid {
  background: none;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(90deg, transparent 18%, #000 74%);
  mask-image: linear-gradient(90deg, transparent 18%, #000 74%);
}
.hero::before { display: none; }
.hero-pattern { display: block; width: 100%; height: 100%; color: #b4c5d3; }
.hero-pattern path, .hero-pattern circle { vector-effect: non-scaling-stroke; stroke-width: 1; }
.pattern-registration { stroke: currentColor; opacity: .17; }
.pattern-traces { stroke: currentColor; opacity: .36; }
.pattern-accent { stroke: var(--orange); opacity: .42; }
.pattern-pads { stroke: currentColor; fill: var(--bg); opacity: .46; }
[data-theme="light"] .hero-pattern { color: #60798d; }
[data-theme="light"] .pattern-registration { opacity: .12; }
[data-theme="light"] .pattern-traces { opacity: .18; }
[data-theme="light"] .pattern-accent { opacity: .16; }
[data-theme="light"] .pattern-pads { opacity: .23; }
/* The article keeps a quiet reading column. Only roomy desktop margins carry
   this much fainter continuation; it never sits behind paragraphs. */
@media screen and (min-width: 1100px) {
  .research-content { position: relative; isolation: isolate; }
  .research-content::before,
  .research-content::after {
    content: "";
    position: absolute;
    top: 70px;
    bottom: 60px;
    width: clamp(0px, calc((100vw - 870px) / 2 - 48px), 128px);
    z-index: -1;
    pointer-events: none;
    background: url("assets/research-margin-pattern.svg") center top / 128px 420px repeat-y;
    opacity: .12;
    -webkit-mask-image: linear-gradient(transparent, #000 120px, #000 calc(100% - 120px), transparent);
    mask-image: linear-gradient(transparent, #000 120px, #000 calc(100% - 120px), transparent);
  }
  .research-content::before { right: calc(100% + 24px); transform: scaleX(-1); }
  .research-content::after { left: calc(100% + 24px); }
  [data-theme="light"] .research-content::before,
  [data-theme="light"] .research-content::after { opacity: .09; }
}
@media screen and (max-width: 760px) {
  .hero-grid { opacity: .55; }
}
@media screen {
  :root { --header-height: 86px; }
  .hero {
    height: calc(100vh - var(--header-height));
    height: calc(100svh - var(--header-height));
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto;
    padding-top: 16px;
  }
  .hero h1 { font-size: clamp(96px, 19vw, 330px); font-size: clamp(96px, min(19vw, 30svh), 330px); line-height: 1; margin: 14px 0 4px; }
  .hero-bottom { min-height: 0; margin: 0; gap: clamp(16px, 3vw, 44px); grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(0, 1fr); }
  .hero-copy { padding: 4px 0; min-width: 0; max-width: 900px; }
  .hero .paper-title { line-height: 1.2; margin-bottom: 10px; }
  .hero .hero-copy > p:not(.publication) { margin: 12px 0 0; line-height: 1.6; font-size: 17px; max-width: 680px; }
  .hero .hero-copy > p.publication { margin: 12px 0 0; font-size: 14px; line-height: 1.5; }
  .hero .publication > span { font-size: 14px; line-height: 1.5; padding: 4px 10px; }
  .hero .hero-actions { margin-top: 16px; gap: 10px; }
  .hero .hero-actions .button { padding: 13px 16px; font-size: 14px; gap: 16px; }
  .hero-footer { margin: 0; padding: 15px 0; }
}
@media screen and (max-width: 1100px) {
  :root { --header-height: 122px; }
  .hero .hero-copy > p:not(.publication) { font-size: 16px; }
  .hero .hero-actions .button { padding: 12px 14px; gap: 12px; }
}
@media screen and (max-width: 760px) {
  .hero { padding-top: 10px; }
  .hero h1 { font-size: 21vw; margin: 10px 0 2px; }
  .hero-bottom { grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(0, 1fr); gap: 8px; align-items: center; }
  .hero-copy { padding: 0; }
  .hero .paper-title { font-size: 24px; line-height: 1.2; margin-bottom: 8px; }
  .hero .hero-copy > p:not(.publication) { font-size: 16px; line-height: 1.5; margin-top: 8px; max-width: none; }
  .hero .hero-copy > p.publication { margin-top: 10px; }
  .hero .publication > span { font-size: 13px; padding: 3px 9px; }
  .hero .hero-actions { margin-top: 12px; gap: 8px; }
  .hero .hero-actions .button { padding: 11px 12px; font-size: 13px; gap: 9px; }
  .hero-footer { padding: 11px 0; }
}
@media screen and (max-width: 390px) {
  .hero .hero-actions .button { padding: 10px 11px; font-size: 12.5px; gap: 8px; }
}
/* The introductory sentence is repeated in Summary; on compact phones give
   more space to the title, venue, and resources. */
@media screen and (max-width: 760px) and (max-height: 700px) {
  .hero .hero-copy > p:not(.publication) { display: none; }
  .hero .paper-title { font-size: 22px; }
}
@media screen and (max-height: 700px) and (min-width: 761px) {
  .hero { padding-top: 10px; }
  .hero h1 { font-size: clamp(100px, 20svh, 150px); margin-top: 8px; }
  .hero .paper-title { font-size: 26px; }
  .hero .hero-copy > p:not(.publication) { font-size: 16px; line-height: 1.5; margin-top: 10px; }
  .hero .hero-copy > p.publication { margin-top: 10px; }
  .hero .hero-actions { margin-top: 12px; }
  .hero .hero-actions .button { padding: 10px 11px; gap: 8px; font-size: 13px; }
  .hero-footer { padding: 11px 0; }
}
/* Preserve readable content in very short landscape windows or at high zoom. */
@media screen and (max-height: 520px) {
  .hero { height: auto; min-height: calc(100svh - var(--header-height)); grid-template-rows: auto auto auto; }
}

.hero-topline { justify-content: flex-end; }

/* Keep animation controls in the viewport-reserved landing footer. */
@media screen {
  .hero-footer { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); gap: 12px 20px; }
}
.hero-footer > .mono { justify-self: end; }
.hero-motion-controls { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.hero-motion-controls button { border: 1px solid var(--line); border-radius: 4px; background: var(--surface); color: var(--text); padding: 7px 12px; font-family: var(--sans); font-size: 14px; line-height: 1.4; letter-spacing: 0; white-space: nowrap; }
.hero-motion-controls button:hover { border-color: var(--orange); color: var(--orange); }
@media screen and (max-width: 1000px) {
  .hero-footer { grid-template-columns: minmax(0, 1fr) auto; gap: 10px; }
  .hero-motion-controls { grid-column: 1 / -1; grid-row: 1; }
  .hero-footer > a { grid-column: 1; grid-row: 2; }
  .hero-footer > .mono { grid-column: 2; grid-row: 2; }
}