/* Operator guide — distinct from landing FAQ cards */
.guide-body {
  min-height: 100vh;
}

.guide-page {
  position: relative;
  z-index: 1;
}

.guide-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 22px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 20px 72px;
  align-items: start;
}

.guide-rail {
  position: sticky;
  top: 88px;
  padding: 20px 18px;
  border-radius: var(--radius);
}

.guide-kicker {
  margin: 0 0 14px;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.guide-toc {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.guide-toc a {
  display: block;
  padding: 8px 10px;
  border-radius: 12px;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
  border-left: 2px solid transparent;
}

.guide-toc a:hover,
.guide-toc a:focus-visible {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.04);
  border-left-color: rgba(255, 255, 255, 0.35);
}

.guide-rail-card {
  margin-top: 18px;
  padding: 14px;
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  gap: 6px;
}

.guide-rail-card code,
.guide-rail-card strong {
  font-size: 0.9rem;
  word-break: break-all;
}

.guide-main {
  display: grid;
  gap: 18px;
}

.guide-hero {
  padding: 28px 26px;
  border-radius: var(--radius);
}

.guide-hero h1 {
  margin: 10px 0 0;
  font-size: clamp(2.1rem, 4.5vw, 3.2rem);
  letter-spacing: -0.045em;
  line-height: 1.05;
  max-width: 16ch;
}

.guide-lead {
  margin: 16px 0 0;
  max-width: 54ch;
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.55;
}

.guide-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.guide-meta span {
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.guide-block {
  position: relative;
  padding: 26px 26px 26px 78px;
  border-radius: calc(var(--radius) - 4px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015));
}

.guide-num {
  position: absolute;
  left: 22px;
  top: 26px;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--ink-mute);
  letter-spacing: 0.08em;
}

.guide-block h2 {
  margin: 0;
  font-size: clamp(1.45rem, 2.5vw, 1.9rem);
  letter-spacing: -0.03em;
}

.guide-block h3 {
  margin: 20px 0 8px;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.guide-block > p,
.guide-list,
.guide-trouble {
  color: var(--ink-soft);
}

.guide-block > p {
  margin: 12px 0 0;
  max-width: 62ch;
  line-height: 1.55;
}

.guide-steps {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.guide-steps > div {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
  align-items: start;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px dashed rgba(255, 255, 255, 0.1);
}

.guide-steps strong {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  font-family: var(--mono);
}

.guide-list {
  margin: 14px 0 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 8px;
  max-width: 62ch;
}

.guide-formula {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 16px;
  display: grid;
  gap: 6px;
}

.guide-code {
  margin: 10px 0 0;
  padding: 14px 16px;
  border-radius: 14px;
  overflow: auto;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--mono);
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--ink);
}

.guide-table-wrap {
  margin-top: 16px;
  overflow: auto;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.guide-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.guide-table th,
.guide-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.guide-table th {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mute);
  background: rgba(255, 255, 255, 0.03);
}

.guide-table code {
  font-family: var(--mono);
  font-size: 0.84rem;
}

.guide-trouble {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.guide-trouble details {
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.22);
  padding: 12px 14px;
}

.guide-trouble summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 500;
}

.guide-trouble p {
  margin: 10px 0 0;
  color: var(--ink-soft);
}

.nav-links a.is-current {
  color: var(--ink);
}

@media (max-width: 920px) {
  .guide-shell {
    grid-template-columns: 1fr;
  }

  .guide-rail {
    position: static;
  }

  .guide-toc {
    grid-template-columns: 1fr 1fr;
  }

  .guide-block {
    padding: 22px 18px 22px 18px;
  }

  .guide-num {
    position: static;
    margin-bottom: 8px;
  }
}

@media (max-width: 640px) {
  .guide-toc {
    grid-template-columns: 1fr;
  }

  .guide-hero h1 {
    max-width: none;
  }
}