.td-skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 1000;
  padding: 0.7rem 1rem;
  border-radius: 0.55rem;
  background: #f8fafc;
  color: #07111f;
  font-weight: 800;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform 160ms ease;
}

.td-skip-link:focus {
  transform: translateY(0);
}

.td-guide {
  --td-bg: #07111f;
  --td-bg-deep: #040a13;
  --td-panel: #0d1a2a;
  --td-panel-soft: #112235;
  --td-border: #26384a;
  --td-border-strong: #3a536b;
  --td-text: #f4f8fb;
  --td-muted: #b9c8d7;
  --td-dim: #8ea2b5;
  --td-green: #66f2b4;
  --td-green-deep: #143c31;
  --td-blue: #76bafc;
  --td-amber: #ffd071;
  --td-red: #ff9d9d;
  color: var(--td-text);
  background: var(--td-bg);
  overflow: clip;
}

.td-guide article,
.td-guide section,
.td-guide header,
.td-guide nav,
.td-guide aside,
.td-guide div {
  min-width: 0;
}

.td-guide p,
.td-guide li {
  line-height: 1.72;
}

.td-guide a {
  color: var(--td-green);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.td-guide a:hover {
  color: #a1ffd4;
  text-shadow: none;
}

.td-guide a:focus-visible,
.td-guide button:focus-visible,
.td-guide [tabindex="0"]:focus-visible {
  outline: 3px solid var(--td-amber);
  outline-offset: 4px;
}

.td-hero {
  position: relative;
  isolation: isolate;
  border-bottom: 1px solid var(--td-border);
  background:
    radial-gradient(circle at 12% 12%, rgba(102, 242, 180, 0.16), transparent 28rem),
    radial-gradient(circle at 88% 36%, rgba(118, 186, 252, 0.14), transparent 25rem),
    linear-gradient(145deg, #0b1a2b 0%, #07111f 52%, #040a13 100%);
}

.td-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.3;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to bottom, #000, transparent 88%);
}

.td-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(19rem, 0.8fr);
  gap: clamp(2rem, 5vw, 4.25rem);
  align-items: center;
  padding-top: clamp(3.5rem, 8vw, 6.5rem);
  padding-bottom: clamp(3.2rem, 7vw, 5.5rem);
}

.td-eyebrow,
.td-kicker,
.td-card-kicker {
  margin: 0;
  color: var(--td-green);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.td-hero h1 {
  max-width: 16ch;
  margin: 0.65rem 0 1.2rem;
  font-size: clamp(2.35rem, 6vw, 4.9rem);
  line-height: 0.99;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.td-deck {
  max-width: 46rem;
  margin: 0;
  color: #d6e2ec;
  font-size: clamp(1.02rem, 1.7vw, 1.23rem);
}

.td-byline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1rem;
  margin-top: 1.65rem;
  color: var(--td-dim);
  font-size: 0.86rem;
}

.td-byline span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.td-byline span + span::before {
  content: "";
  width: 0.3rem;
  height: 0.3rem;
  margin-right: 0.35rem;
  border-radius: 50%;
  background: var(--td-border-strong);
}

.td-quick-card {
  position: relative;
  padding: clamp(1.3rem, 3vw, 2rem);
  border: 1px solid rgba(118, 186, 252, 0.36);
  border-radius: 1.25rem;
  background: linear-gradient(155deg, rgba(17, 34, 53, 0.96), rgba(7, 17, 31, 0.94));
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.32);
}

.td-quick-card::after {
  content: "";
  position: absolute;
  inset: 0.6rem;
  z-index: -1;
  border: 1px solid rgba(102, 242, 180, 0.12);
  border-radius: 0.9rem;
}

.td-quick-card h2 {
  margin: 0.35rem 0 0.8rem;
  font-size: clamp(1.35rem, 2.5vw, 1.8rem);
}

.td-quick-card ol {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding-left: 1.35rem;
}

.td-quick-card li::marker {
  color: var(--td-green);
  font-weight: 900;
}

.td-quick-card > p:last-child {
  margin: 1rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--td-border);
  color: var(--td-muted);
  font-size: 0.88rem;
}

.td-jump {
  border-bottom: 1px solid var(--td-border);
  background: rgba(4, 10, 19, 0.96);
}

.td-jump-inner {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.td-jump-inner span {
  flex: 0 0 auto;
  margin-right: 0.15rem;
  color: var(--td-dim);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.td-jump-inner a {
  flex: 0 0 auto;
  padding: 0.48rem 0.72rem;
  border: 1px solid var(--td-border);
  border-radius: 999px;
  color: #dce7f0;
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
}

.td-jump-inner a:hover {
  border-color: var(--td-green);
  color: var(--td-green);
  background: rgba(102, 242, 180, 0.07);
}

.td-article-shell {
  max-width: 980px;
  padding-top: 1rem;
  padding-bottom: 5rem;
}

.td-section {
  scroll-margin-top: 1rem;
  padding: clamp(3.1rem, 7vw, 5.3rem) 0;
  border-bottom: 1px solid var(--td-border);
}

.td-section:last-child {
  border-bottom: 0;
}

.td-section > p,
.td-section > ul,
.td-section > ol,
.td-section > .td-inline-link {
  max-width: 48rem;
}

.td-section > p {
  margin: 1rem 0 0;
  color: var(--td-muted);
  font-size: 1.02rem;
}

.td-section-heading {
  display: grid;
  grid-template-columns: 3.2rem minmax(0, 1fr);
  gap: 0.85rem;
  align-items: start;
  margin-bottom: 1.25rem;
}

.td-section-number {
  margin: 0.2rem 0 0;
  color: var(--td-border-strong);
  font-size: 1.55rem;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.td-section h2 {
  max-width: 25ch;
  margin: 0.25rem 0 0;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.td-subhead {
  max-width: 38rem;
  margin: 2.8rem 0 0.75rem;
  font-size: clamp(1.3rem, 2.5vw, 1.65rem);
}

.td-anchor-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 2rem;
}

.td-anchor-flow > div {
  position: relative;
  padding: 1.2rem 1rem;
  border: 1px solid var(--td-border);
  border-radius: 0.9rem;
  background: linear-gradient(160deg, var(--td-panel-soft), var(--td-panel));
}

.td-anchor-flow span,
.td-sync-steps > li > span {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border: 1px solid rgba(102, 242, 180, 0.42);
  border-radius: 50%;
  color: var(--td-green);
  background: var(--td-green-deep);
  font-size: 0.8rem;
  font-weight: 900;
}

.td-anchor-flow strong {
  display: block;
  margin-top: 0.85rem;
  font-size: 0.96rem;
}

.td-anchor-flow p {
  margin: 0.42rem 0 0;
  color: var(--td-dim);
  font-size: 0.84rem;
}

.td-callout {
  max-width: 48rem;
  margin-top: 1.7rem;
  padding: 1.15rem 1.25rem;
  border: 1px solid var(--td-border-strong);
  border-left-width: 4px;
  border-radius: 0.8rem;
  background: var(--td-panel);
}

.td-callout strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--td-text);
}

.td-callout p {
  margin: 0;
  color: var(--td-muted);
  font-size: 0.93rem;
}

.td-callout-neutral {
  border-left-color: var(--td-blue);
}

.td-callout-caution {
  border-left-color: var(--td-amber);
  background: linear-gradient(90deg, rgba(255, 208, 113, 0.09), var(--td-panel) 42%);
}

.td-table-wrap {
  width: 100%;
  margin-top: 1.8rem;
  overflow-x: auto;
  border: 1px solid var(--td-border);
  border-radius: 0.95rem;
  background: var(--td-panel);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.2);
}

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

.td-table-wrap th,
.td-table-wrap td {
  padding: 0.95rem 1rem;
  border-right: 1px solid var(--td-border);
  border-bottom: 1px solid var(--td-border);
  vertical-align: top;
  text-align: left;
}

.td-table-wrap th:last-child,
.td-table-wrap td:last-child {
  border-right: 0;
}

.td-table-wrap tbody tr:last-child th,
.td-table-wrap tbody tr:last-child td {
  border-bottom: 0;
}

.td-table-wrap thead th {
  color: #c7d8e7;
  background: #13283d;
  font-size: 0.76rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.td-table-wrap tbody th {
  width: 24%;
  color: var(--td-text);
  font-size: 0.9rem;
}

.td-table-wrap td {
  color: var(--td-muted);
  font-size: 0.88rem;
}

.td-table-wrap tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.018);
}

.td-line-grid,
.td-action-grid,
.td-related-grid {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.8rem;
}

.td-line-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.td-line-grid article,
.td-action-grid article {
  padding: 1.2rem;
  border: 1px solid var(--td-border);
  border-radius: 0.9rem;
  background: var(--td-panel);
}

.td-line-grid h3,
.td-action-grid h3 {
  margin: 1rem 0 0.4rem;
  font-size: 1.02rem;
}

.td-line-grid p,
.td-action-grid p {
  margin: 0;
  color: var(--td-dim);
  font-size: 0.86rem;
}

.td-line-visual {
  position: relative;
  height: 2rem;
  overflow: hidden;
}

.td-line-visual::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 12%;
  width: 58%;
  height: 2px;
  background: var(--td-green);
  transform: rotate(-8deg);
  transform-origin: left center;
}

.td-line-visual::after {
  content: "";
  position: absolute;
  top: calc(50% - 0.27rem);
  left: 12%;
  width: 0.55rem;
  height: 0.55rem;
  border: 2px solid var(--td-green);
  border-radius: 50%;
  background: var(--td-panel);
  box-shadow: 8.9rem -1.25rem 0 -1px var(--td-panel), 8.9rem -1.25rem 0 1px var(--td-green);
}

.td-line-ray::before {
  width: 88%;
}

.td-line-ray::after {
  box-shadow: 8.9rem -1.25rem 0 -1px var(--td-panel), 8.9rem -1.25rem 0 1px var(--td-green);
}

.td-line-full::before {
  left: -2%;
  width: 106%;
}

.td-line-full::after {
  left: 24%;
  box-shadow: 7.1rem -1rem 0 -1px var(--td-panel), 7.1rem -1rem 0 1px var(--td-green);
}

.td-do-dont {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  margin-top: 1.4rem;
}

.td-do-dont > div {
  padding: 1.25rem;
  border: 1px solid var(--td-border);
  border-radius: 0.9rem;
  background: var(--td-panel);
}

.td-do {
  box-shadow: inset 4px 0 0 var(--td-green);
}

.td-dont {
  box-shadow: inset 4px 0 0 var(--td-red);
}

.td-dont .td-card-kicker {
  color: var(--td-red);
}

.td-do-dont h3 {
  margin: 0.35rem 0;
}

.td-do-dont p:last-child {
  margin: 0;
  color: var(--td-muted);
  font-size: 0.91rem;
}

.td-split {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(16rem, 0.8fr);
  gap: clamp(1.5rem, 5vw, 3.5rem);
  align-items: center;
  margin-top: 1.6rem;
}

.td-split + .td-split {
  margin-top: 3.5rem;
  padding-top: 3.5rem;
  border-top: 1px solid var(--td-border);
}

.td-split-reverse > div:first-child {
  order: 2;
}

.td-split h3 {
  margin: 0 0 0.55rem;
  font-size: clamp(1.35rem, 2.5vw, 1.8rem);
}

.td-split p {
  margin: 0.75rem 0 0;
  color: var(--td-muted);
}

.td-zone-demo {
  position: relative;
  display: grid;
  min-height: 15rem;
  place-items: center;
  border: 2px solid var(--td-blue);
  border-radius: 0.85rem;
  background:
    linear-gradient(rgba(118, 186, 252, 0.13), rgba(118, 186, 252, 0.05)),
    repeating-linear-gradient(90deg, transparent 0 2.4rem, rgba(255, 255, 255, 0.03) 2.4rem 2.46rem);
  box-shadow: inset 0 0 40px rgba(118, 186, 252, 0.08);
}

.td-zone-demo::before,
.td-zone-demo::after {
  content: "";
  position: absolute;
  left: -0.38rem;
  width: 0.75rem;
  height: 0.75rem;
  border: 2px solid var(--td-blue);
  border-radius: 50%;
  background: var(--td-bg);
}

.td-zone-demo::before {
  top: -0.45rem;
}

.td-zone-demo::after {
  bottom: -0.45rem;
  left: auto;
  right: -0.38rem;
}

.td-zone-label {
  position: absolute;
  left: 0.85rem;
  color: #d7e9f8;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.td-zone-label-top {
  top: 0.7rem;
}

.td-zone-label-bottom {
  bottom: 0.7rem;
}

.td-zone-mid {
  color: var(--td-blue);
  font-weight: 850;
}

.td-note-demo {
  position: relative;
  padding: 1.35rem;
  border: 1px solid rgba(255, 208, 113, 0.5);
  border-radius: 0.85rem;
  background: linear-gradient(145deg, rgba(255, 208, 113, 0.12), var(--td-panel));
  transform: rotate(-1deg);
}

.td-note-demo::before {
  content: "T";
  position: absolute;
  top: -0.75rem;
  right: 1rem;
  display: grid;
  width: 1.8rem;
  height: 1.8rem;
  place-items: center;
  border-radius: 0.4rem;
  color: #07111f;
  background: var(--td-amber);
  font-weight: 950;
}

.td-note-demo span,
.td-note-demo strong,
.td-note-demo small {
  display: block;
}

.td-note-demo span {
  color: var(--td-amber);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.td-note-demo strong {
  margin: 0.25rem 0;
  font-size: 1.85rem;
}

.td-note-demo small {
  color: var(--td-muted);
}

.td-check-list {
  display: grid;
  gap: 0.55rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.td-check-list li {
  position: relative;
  padding-left: 1.55rem;
  color: var(--td-muted);
}

.td-check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--td-green);
  font-weight: 900;
}

.td-action-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.td-action-grid h3 {
  margin-top: 0.8rem;
}

.td-action-key {
  display: inline-flex;
  padding: 0.32rem 0.55rem;
  border: 1px solid var(--td-border-strong);
  border-radius: 0.42rem;
  color: var(--td-blue);
  background: #08131f;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.76rem;
  font-weight: 800;
}

.td-action-grid kbd {
  padding: 0.08rem 0.3rem;
  border: 1px solid var(--td-border-strong);
  border-bottom-width: 2px;
  border-radius: 0.25rem;
  color: var(--td-text);
  background: #08131f;
  font-family: inherit;
}

.td-inline-link {
  margin-top: 1.2rem !important;
  padding: 0.95rem 1rem;
  border-radius: 0.7rem;
  background: rgba(102, 242, 180, 0.07);
}

.td-sync-steps,
.td-workflow {
  display: grid;
  gap: 0;
  margin: 1.7rem 0 0;
  padding: 0;
  list-style: none;
}

.td-sync-steps {
  max-width: 48rem;
}

.td-sync-steps li {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 0.85rem;
  padding: 0 0 1.5rem;
}

.td-sync-steps li:not(:last-child) > span::after {
  content: "";
  position: absolute;
  top: 2rem;
  bottom: -1.5rem;
  left: 50%;
  width: 1px;
  background: var(--td-border);
}

.td-sync-steps > li > span {
  position: relative;
}

.td-sync-steps strong {
  display: block;
  margin-top: 0.2rem;
}

.td-sync-steps p {
  margin: 0.25rem 0 0;
  color: var(--td-muted);
  font-size: 0.9rem;
}

.td-workflow {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  counter-reset: td-workflow;
}

.td-workflow li {
  position: relative;
  min-height: 9rem;
  padding: 1.2rem 1.2rem 1.2rem 3.6rem;
  border: 1px solid var(--td-border);
  border-radius: 0.9rem;
  background: var(--td-panel);
  counter-increment: td-workflow;
}

.td-workflow li::before {
  content: counter(td-workflow, decimal-leading-zero);
  position: absolute;
  top: 1.15rem;
  left: 1.1rem;
  color: var(--td-green);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.82rem;
  font-weight: 900;
}

.td-workflow strong {
  display: block;
  margin-bottom: 0.3rem;
}

.td-workflow p {
  margin: 0;
  color: var(--td-muted);
  font-size: 0.9rem;
}

.td-boundary {
  border-bottom: 0;
}

.td-related-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.td-related-grid > a {
  display: block;
  padding: 1.2rem;
  border: 1px solid var(--td-border);
  border-radius: 0.9rem;
  color: var(--td-text);
  background: linear-gradient(145deg, var(--td-panel-soft), var(--td-panel));
  text-decoration: none;
  transition: border-color 150ms ease, transform 150ms ease;
}

.td-related-grid > a:hover {
  border-color: var(--td-green);
  color: var(--td-text);
  transform: translateY(-2px);
}

.td-related-grid span,
.td-related-grid strong,
.td-related-grid p {
  display: block;
}

.td-related-grid span {
  margin-bottom: 0.35rem;
  color: var(--td-green);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.td-related-grid strong {
  font-size: 1.02rem;
}

.td-related-grid p {
  margin: 0.4rem 0 0;
  color: var(--td-dim);
  font-size: 0.86rem;
}

.td-sources {
  padding: clamp(2rem, 5vw, 3rem);
  border: 1px solid var(--td-border);
  border-radius: 1rem;
  background: var(--td-bg-deep);
}

.td-sources ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem 1.5rem;
  margin: 1.4rem 0 0;
  padding-left: 1.1rem;
}

.td-sources li {
  color: var(--td-dim);
  font-size: 0.87rem;
}

.td-sources a {
  overflow-wrap: anywhere;
}

.td-disclosure {
  margin-top: 1.8rem !important;
  padding-top: 1.2rem;
  border-top: 1px solid var(--td-border);
  color: var(--td-dim) !important;
  font-size: 0.84rem !important;
}

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

  .td-hero h1 {
    max-width: 18ch;
  }

  .td-quick-card {
    max-width: 42rem;
  }

  .td-anchor-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .td-split {
    grid-template-columns: 1fr;
  }

  .td-split-reverse > div:first-child {
    order: 0;
  }

  .td-zone-demo,
  .td-note-demo {
    max-width: 30rem;
  }
}

@media (max-width: 680px) {
  .td-hero-grid {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }

  .td-hero h1 {
    font-size: clamp(2.2rem, 12vw, 3.3rem);
  }

  .td-byline {
    display: grid;
    gap: 0.35rem;
  }

  .td-byline span + span::before {
    display: none;
  }

  .td-article-shell {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .td-section-heading {
    grid-template-columns: 2.4rem minmax(0, 1fr);
    gap: 0.55rem;
  }

  .td-section-number {
    font-size: 1.2rem;
  }

  .td-anchor-flow,
  .td-line-grid,
  .td-action-grid,
  .td-workflow,
  .td-related-grid,
  .td-sources ul,
  .td-do-dont {
    grid-template-columns: 1fr;
  }

  .td-workflow li {
    min-height: 0;
  }

  .td-sources {
    padding: 1.25rem;
  }

  .td-table-wrap {
    margin-right: 0;
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .td-skip-link,
  .td-related-grid > a {
    transition: none;
  }
}

@media print {
  .td-guide {
    color: #111827;
    background: #fff;
  }

  .site-header,
  .site-footer,
  .td-jump,
  .td-skip-link {
    display: none !important;
  }

  .td-hero,
  .td-section,
  .td-sources,
  .td-quick-card,
  .td-anchor-flow > div,
  .td-line-grid article,
  .td-action-grid article,
  .td-workflow li,
  .td-related-grid > a {
    color: #111827;
    border-color: #cbd5e1;
    background: #fff;
    box-shadow: none;
  }

  .td-guide p,
  .td-guide li,
  .td-guide td,
  .td-guide th,
  .td-guide strong,
  .td-guide h1,
  .td-guide h2,
  .td-guide h3 {
    color: #111827 !important;
  }

  .td-section,
  .td-table-wrap,
  .td-callout,
  .td-related-grid > a {
    break-inside: avoid;
  }
}