@charset "UTF-8";
:host {
  --ink: #1E2126;
  --sheet: #F7F6F1;
  --card: #FFFFFF;
  --grey: #8A8F98;
  --ply: #C89355;
  --ply-fill: #EFE8DA;
  --dim: #1D50D8;
  --dim-soft: #E4EAFB;
  --brand: #D93025;
  --radius: 10px;
  display: block;
  font-family: "IBM Plex Sans", sans-serif;
  color: var(--ink);
  background: var(--sheet);
  background-image: linear-gradient(rgba(30, 33, 38, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(30, 33, 38, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
}

/* ── Nav ─────────────────────────────────────────────────────────────── */
.lp-doc-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 14px 5vw;
  background: rgba(247, 246, 241, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(30, 33, 38, 0.12);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.lp-doc-nav-inner {
  display: contents;
}

.lp-doc-brand {
  display: inline-block;
  line-height: 0;
}

.lp-doc-logo {
  height: 48px;
  width: auto;
  display: block;
}

.lp-doc-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--grey);
  text-decoration: none;
}
.lp-doc-back svg {
  flex: none;
}
.lp-doc-back:hover {
  color: var(--dim);
}

/* ── Hero band ───────────────────────────────────────────────────────── */
.lp-doc-hero {
  background: var(--ink);
  background-image: linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  padding: 56px 5vw;
  color: #fff;
}

.lp-doc-container {
  max-width: 1080px;
  margin: 0 auto;
}

.lp-doc-tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.64rem;
  letter-spacing: 0.22em;
  color: var(--ply);
  text-transform: uppercase;
  display: block;
  margin-bottom: 12px;
}

.lp-doc-title {
  font-family: "Chakra Petch", sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: #fff;
  margin: 0 0 10px;
  line-height: 1.15;
}

.lp-doc-meta {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.48);
  margin: 0;
  letter-spacing: 0.04em;
}

/* ── Content layout ──────────────────────────────────────────────────── */
.lp-doc-body {
  padding: 48px 5vw 80px;
}

.lp-doc-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  align-items: start;
}

/* ── TOC sidebar ─────────────────────────────────────────────────────── */
.lp-doc-toc {
  position: sticky;
  top: 76px;
  background: var(--card);
  border: 1.5px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: 4px 4px 0 rgba(30, 33, 38, 0.07);
  padding: 18px;
}

.lp-doc-toc-title {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--grey);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.lp-doc-toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.lp-doc-toc li a {
  display: block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.66rem;
  color: var(--grey);
  text-decoration: none;
  padding: 5px 7px;
  border-radius: 5px;
  line-height: 1.4;
  transition: background 0.12s ease, color 0.12s ease;
}
.lp-doc-toc li a:hover {
  background: var(--dim-soft);
  color: var(--dim);
}

/* ── Main article ────────────────────────────────────────────────────── */
.lp-doc-article {
  max-width: 720px;
}

.lp-doc-intro {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.96rem;
  color: #4a4f57;
  line-height: 1.75;
  background: var(--ply-fill);
  border: 1.5px solid var(--ply);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 32px;
}

.lp-doc-section {
  padding: 28px 0;
  border-top: 1px dashed rgba(30, 33, 38, 0.2);
}
.lp-doc-section h2 {
  font-family: "Chakra Petch", sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 14px;
  line-height: 1.2;
}
.lp-doc-section h3 {
  font-family: "Chakra Petch", sans-serif;
  font-size: 0.96rem;
  font-weight: 600;
  color: var(--ink);
  margin: 18px 0 9px;
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(30, 33, 38, 0.1);
}
.lp-doc-section p {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.9rem;
  color: #3b4048;
  line-height: 1.78;
  margin: 0 0 10px;
}
.lp-doc-section a {
  color: var(--dim);
  text-decoration: none;
}
.lp-doc-section a:hover {
  text-decoration: underline;
}

.lp-doc-list {
  list-style: none;
  padding: 0;
  margin: 0 0 12px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.lp-doc-list li {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.9rem;
  color: #3b4048;
  line-height: 1.65;
  padding-left: 18px;
  position: relative;
}
.lp-doc-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--ply);
}

.lp-doc-contact-card {
  background: var(--card);
  border: 1.5px solid rgba(30, 33, 38, 0.22);
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  color: #3b4048;
  line-height: 1.6;
  margin-top: 8px;
}
.lp-doc-contact-card a {
  color: var(--dim);
  text-decoration: none;
}
.lp-doc-contact-card a:hover {
  text-decoration: underline;
}

/* ── Footer ──────────────────────────────────────────────────────────── */
.lp-doc-footer {
  border-top: 1.5px solid rgba(30, 33, 38, 0.12);
  padding: 22px 5vw;
  background: var(--card);
}

.lp-doc-footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
  color: var(--grey);
}

.lp-doc-footer-links {
  display: flex;
  gap: 20px;
}
.lp-doc-footer-links a {
  color: var(--grey);
  text-decoration: none;
}
.lp-doc-footer-links a:hover {
  color: var(--dim);
}

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .lp-doc-layout {
    grid-template-columns: 1fr;
  }
  .lp-doc-toc {
    position: static;
  }
  .lp-doc-hero {
    padding: 40px 5vw;
  }
}