:root {
  --bg: #07111f;
  --bg-soft: #0d1b2d;
  --card: rgba(16, 32, 51, 0.88);
  --card-2: rgba(22, 43, 67, 0.9);
  --line: rgba(148, 184, 220, 0.18);
  --text: #eef6ff;
  --muted: #a9bdd2;
  --blue: #62b7ff;
  --cyan: #55e6d2;
  --purple: #a58cff;
  --orange: #ffbc6e;
  --good: #71e7a0;
  --danger: #ff8b8b;
  --shadow: 0 20px 55px rgba(0, 0, 0, 0.28);
  --radius: 22px;
}

* {
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 15% 10%, rgba(62, 137, 220, 0.18), transparent 32%),
    radial-gradient(circle at 85% 15%, rgba(95, 227, 208, 0.11), transparent 28%),
    linear-gradient(180deg, #07111f 0%, #091725 50%, #06101b 100%);
  color: var(--text);
  line-height: 1.65;
}

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

.container {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

nav {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(7, 17, 31, 0.78);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background:
    linear-gradient(135deg, rgba(98, 183, 255, 0.95), rgba(85, 230, 210, 0.8));
  color: #06101b;
  box-shadow: 0 8px 24px rgba(98, 183, 255, 0.25);
}

.nav-links {
  display: flex;
  gap: 22px;
  font-size: 0.93rem;
  color: var(--muted);
}

.nav-links a:hover {
  color: var(--text);
}

header {
  padding: 96px 0 72px;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  margin-bottom: 18px;
  border: 1px solid rgba(98, 183, 255, 0.28);
  border-radius: 999px;
  background: rgba(98, 183, 255, 0.09);
  color: #acd8ff;
  font-size: 0.85rem;
  font-weight: 700;
}

h1 {
  margin: 0;
  font-size: clamp(2.5rem, 6vw, 5.25rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

h1 span {
  display: block;
  margin-top: 15px;
  font-size: clamp(1.45rem, 3.25vw, 2.7rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
  color: #b8cbe0;
  font-weight: 650;
}

.hero-copy {
  margin-top: 28px;
  max-width: 760px;
  font-size: 1.12rem;
  color: var(--muted);
}

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 18px;
  border-radius: 12px;
  border: 1px solid var(--line);
  font-weight: 750;
  transition: 0.2s ease;
}

.btn-primary {
  color: #06101b;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border-color: transparent;
}

.btn-secondary {
  background: rgba(255,255,255,0.035);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0,0,0,0.22);
}

.hero-panel {
  position: relative;
  padding: 26px;
  background:
    linear-gradient(145deg, rgba(22, 43, 67, 0.96), rgba(11, 25, 40, 0.88));
  border: 1px solid var(--line);
  border-radius: 26px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-panel::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  top: -80px;
  right: -75px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(85,230,210,0.2), transparent 70%);
}

.mini-label {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 800;
}

.paper-title {
  margin: 12px 0 18px;
  font-size: 1.25rem;
  line-height: 1.45;
  font-weight: 800;
}

.paper-meta {
  display: grid;
  gap: 12px;
  font-size: 0.91rem;
  color: var(--muted);
}

.paper-meta strong {
  color: var(--text);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  padding: 8px 11px;
  border-radius: 999px;
  background: rgba(113,231,160,0.1);
  border: 1px solid rgba(113,231,160,0.23);
  color: var(--good);
  font-weight: 800;
  font-size: 0.82rem;
}

section {
  padding: 34px 0 76px;
}

.section-head {
  margin-bottom: 28px;
}

.section-head p {
  max-width: 760px;
  color: var(--muted);
  margin: 10px 0 0;
}

h2 {
  margin: 0;
  font-size: clamp(1.9rem, 3.3vw, 2.8rem);
  letter-spacing: -0.035em;
}

h3 {
  margin-top: 0;
  font-size: 1.12rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.card {
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: 0 10px 35px rgba(0,0,0,0.14);
}

.card p {
  color: var(--muted);
  margin-bottom: 0;
}

.icon {
  width: 44px;
  height: 44px;
  margin-bottom: 16px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  background: rgba(98,183,255,0.1);
  border: 1px solid rgba(98,183,255,0.19);
  font-size: 1.15rem;
}

.metric {
  text-align: center;
  padding: 24px 16px;
}

.metric-value {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--cyan);
}

.metric-label {
  margin-top: 7px;
  color: var(--muted);
  font-size: 0.85rem;
}

.results-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
}

th, td {
  padding: 16px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

th {
  color: #aaceee;
  background: rgba(98,183,255,0.05);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

td {
  color: #dbe9f6;
}

tr:last-child td {
  border-bottom: 0;
}

.architecture {
  display: grid;
  grid-template-columns: 1fr 74px 1fr;
  gap: 18px;
  align-items: stretch;
}

.plane {
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--card);
}

.plane.offpath {
  box-shadow: inset 0 3px 0 rgba(98,183,255,0.7);
}

.plane.onpath {
  box-shadow: inset 0 3px 0 rgba(85,230,210,0.7);
}

.flow {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.node {
  padding: 11px 13px;
  border-radius: 10px;
  background: rgba(255,255,255,0.035);
  border: 1px solid var(--line);
  text-align: center;
  color: #d9e8f6;
  font-size: 0.89rem;
}

.arrow {
  color: #66849e;
  text-align: center;
  font-size: 0.9rem;
}

.bridge {
  display: grid;
  place-items: center;
  color: var(--muted);
  text-align: center;
  font-size: 0.8rem;
}

.bridge strong {
  display: block;
  color: var(--cyan);
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.notice {
  padding: 20px 22px;
  margin-top: 22px;
  border-radius: 16px;
  border: 1px solid rgba(255,188,110,0.26);
  background: rgba(255,188,110,0.07);
  color: #f3d3aa;
}

.authors {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.author-name {
  font-size: 1.07rem;
  font-weight: 850;
  margin-bottom: 9px;
}

.author-info {
  color: var(--muted);
  font-size: 0.9rem;
}

pre {
  margin: 0;
  padding: 22px;
  overflow-x: auto;
  border-radius: 16px;
  background: #040b13;
  border: 1px solid var(--line);
  color: #d4e6f5;
  font-size: 0.82rem;
  line-height: 1.65;
  white-space: pre;
}

.citation-top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 14px;
}

.copy {
  cursor: pointer;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.045);
  color: var(--text);
  border-radius: 10px;
  padding: 9px 13px;
  font-weight: 750;
}

.copy:hover {
  background: rgba(255,255,255,0.075);
}

footer {
  border-top: 1px solid var(--line);
  padding: 34px 0 48px;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

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

@media (max-width: 900px) {
  .hero,
  .architecture {
    grid-template-columns: 1fr;
  }

  .bridge {
    padding: 8px 0;
  }

  .grid-3,
  .authors {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .nav-links {
    display: none;
  }
}

@media (max-width: 560px) {
  header {
    padding-top: 60px;
  }

  .grid-4 {
    grid-template-columns: 1fr;
  }

  .buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}


/* Adaptive-Shot content, accessibility, and four-author adaptation.
   The base visual system above is retained from the supplied VQC-ZTI HTML. */
html { scroll-padding-top: 88px; }
.hero > *, .grid-3 > *, .grid-4 > *, .authors > *, .architecture > * { min-width: 0; }
.paper-title, .paper-meta, .author-info, .author-name { overflow-wrap: anywhere; }
.paper-meta a:hover, .author-info a:hover, .source-note a:hover { text-decoration: underline; }
.authors { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.nav-links { gap: 19px; }
.brand-mark { flex: 0 0 38px; }
.hero-panel::after { pointer-events: none; }
.paper-meta a, .status a { position: relative; }
.status { border-radius: 14px; }
.source-note { color: var(--muted); font-size: .86rem; margin-top: 16px; }
.source-note a, .notice a { text-decoration: underline; text-underline-offset: 3px; }
.static-note { font-size: .88rem; color: var(--muted); margin-top: 16px; }
.static-note strong { color: var(--text); }
.metric-value { white-space: nowrap; }
.method-line { margin-top: 22px; padding: 18px 20px; border: 1px solid var(--line); border-radius: 14px; background: rgba(98,183,255,.045); }
.method-line code { color: var(--cyan); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .9rem; overflow-wrap: anywhere; }
.node small { display: block; margin-top: 3px; color: var(--muted); }
.node.decision { border-color: rgba(165,140,255,.4); background: rgba(165,140,255,.08); }
.results-wrap { max-width: 100%; }
thead th { vertical-align: bottom; }
tbody th { font-size: .95rem; text-transform: none; letter-spacing: 0; color: var(--text); background: none; }
.results-wrap td { white-space: nowrap; }
.results-wrap tr:last-child th { border-bottom: 0; }
.table-sub { display: block; font-weight: 500; color: var(--muted); font-size: .72rem; letter-spacing: 0; text-transform: none; }
details { margin-top: 22px; }
summary { cursor: pointer; font-weight: 750; padding: 8px 0; }
details[open] summary { margin-bottom: 14px; }
.comparison-cards { margin-top: 22px; }
.copy { min-height: 44px; flex-shrink: 0; }
.citation-top { flex-wrap: wrap; }
pre { max-width: 100%; tab-size: 2; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 12px; top: 8px; padding: 10px 14px; border-radius: 8px; background: var(--cyan); color: #06101b; transform: translateY(-160%); z-index: 50; }
.skip-link:focus { transform: translateY(0); }
@media (max-width: 1100px) { .authors { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 900px) { header { padding-top: 70px; } .hero { gap: 32px; } .authors { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 560px) {
  .authors { grid-template-columns: 1fr; }
  .hero-panel { padding: 22px; }
  .card, .plane { padding: 22px; }
  .brand { font-size: .97rem; gap: 9px; }
  h1 { font-size: clamp(2.35rem, 10vw, 3.5rem); }
  .citation-top strong { flex-basis: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  *, html { scroll-behavior: auto !important; }
  .btn { transition: none; }
  .btn:hover { transform: none; }
}