/* WNW287 Labs v1 */
:root {
  --bg: #0b1020;
  --panel: #121a2d;
  --panel2: #172239;
  --text: #eef4ff;
  --muted: #aab8cf;
  --line: #263653;
  --accent: #69a7ff;
  --accent2: #8de0c6;
  --warn: #ffc86b;
  --max: 1160px;
  --radius: 20px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
a {
  color: inherit;
  text-decoration: none;
}
img,
svg {
  max-width: 100%;
  height: auto;
}
code,
pre {
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
}
.container {
  width: min(var(--max), calc(100% - 36px));
  margin: auto;
}
.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 12px;
  top: 12px;
  background: #fff;
  color: #000;
  padding: 10px 14px;
  z-index: 99;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(11, 16, 32, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  font-weight: 850;
  letter-spacing: 0.04em;
}
.brand span {
  color: var(--accent2);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.95rem;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--text);
}
.menu-btn {
  display: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  border-radius: 12px;
  padding: 9px 12px;
}
.hero {
  padding: 92px 0 60px;
}
.eyebrow {
  color: var(--accent2);
  font-size: 0.83rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 800;
}
.hero h1 {
  font-size: clamp(2.5rem, 7vw, 5.8rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
  margin: 14px 0 24px;
  max-width: 950px;
}
.hero p {
  max-width: 740px;
  color: var(--muted);
  font-size: 1.16rem;
}
.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 12px;
  border: 1px solid var(--line);
  font-weight: 750;
}
.btn.primary {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}
.btn:hover {
  transform: translateY(-1px);
}
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 40px 0 70px;
}
.stat {
  background: var(--panel);
  padding: 24px;
}
.stat strong {
  display: block;
  font-size: 1.5rem;
}
.stat span {
  color: var(--muted);
  font-size: 0.9rem;
}
.section {
  padding: 64px 0;
}
.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 26px;
}
.section h2 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  letter-spacing: -0.035em;
  margin: 0;
}
.section-head p {
  max-width: 560px;
  color: var(--muted);
  margin: 0;
}
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.card {
  background: linear-gradient(180deg, var(--panel), rgba(18, 26, 45, 0.72));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  min-width: 0;
}
.card h3 {
  font-size: 1.22rem;
  margin: 10px 0 8px;
}
.card p {
  color: var(--muted);
  margin: 0;
}
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}
.tag {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 9px;
  color: var(--muted);
  font-size: 0.78rem;
}
.status {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--accent2);
}
.status.plan {
  color: var(--warn);
}
.link-arrow {
  display: inline-block;
  margin-top: 18px;
  font-weight: 800;
  color: var(--accent);
}
.roadmap {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.road-item {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
}
.road-num {
  font-weight: 900;
  color: var(--accent);
}
.road-item p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}
.page-hero {
  padding: 68px 0 34px;
}
.page-hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  line-height: 1;
  letter-spacing: -0.05em;
  margin: 12px 0 18px;
}
.page-hero p {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.08rem;
}
.prose {
  max-width: 840px;
}
.prose h2 {
  margin-top: 46px;
  font-size: 2rem;
  letter-spacing: -0.03em;
}
.prose h3 {
  margin-top: 30px;
}
.prose p,
.prose li {
  color: #c5d1e4;
}
.prose pre {
  overflow: auto;
  background: #080d18;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  color: #e7f0ff;
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}
.prose th,
.prose td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
}
.prose th {
  color: var(--text);
}
.note {
  border-left: 3px solid var(--accent2);
  background: var(--panel);
  padding: 16px 18px;
  border-radius: 0 14px 14px 0;
  color: #cbd8ea;
}
.topology {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #080d18;
  padding: 18px;
  overflow: auto;
}
.device {
  fill: #121a2d;
  stroke: #566b8c;
  stroke-width: 2;
}
.device.router {
  stroke: #69a7ff;
}
.device.switch {
  stroke: #8de0c6;
}
.device.pc {
  stroke: #d3a5ff;
}
.wire {
  stroke: #607290;
  stroke-width: 2;
}
.lab-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 22px 0;
}
.meta-box {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  background: var(--panel);
}
.meta-box span {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
}
.meta-box strong {
  font-size: 0.95rem;
}
.footer {
  margin-top: 70px;
  border-top: 1px solid var(--line);
  padding: 32px 0 46px;
  color: var(--muted);
  font-size: 0.9rem;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.footer a {
  color: var(--text);
}
.article-list {
  display: grid;
  gap: 12px;
}
.article {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
}
.article h3 {
  margin: 0 0 4px;
}
.article p {
  margin: 0;
  color: var(--muted);
}
.kicker {
  color: var(--accent2);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.empty {
  border: 1px dashed var(--line);
  border-radius: 16px;
  padding: 24px;
  color: var(--muted);
}
@media (max-width: 820px) {
  .grid {
    grid-template-columns: 1fr;
  }
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .roadmap {
    grid-template-columns: 1fr;
  }
  .lab-meta {
    grid-template-columns: repeat(2, 1fr);
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 18px;
    right: 18px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 12px;
    flex-direction: column;
    align-items: stretch;
  }
  .nav-links.open {
    display: flex;
  }
  .menu-btn {
    display: block;
  }
  .section-head {
    display: block;
  }
  .section-head p {
    margin-top: 10px;
  }
  .hero {
    padding-top: 68px;
  }
}
@media (max-width: 480px) {
  .stats {
    grid-template-columns: 1fr;
  }
  .lab-meta {
    grid-template-columns: 1fr;
  }
  .article {
    grid-template-columns: 1fr;
  }
  .container {
    width: min(var(--max), calc(100% - 28px));
  }
}

.contact-qr {
  margin-top: 18px;
  display: flex;
  justify-content: center;
}

.contact-qr img {
  width: 100%;
  max-width: 280px;
  border-radius: 16px;
  background: #ffffff;
  padding: 12px;
  border: 1px solid var(--line);
}