:root {
  color-scheme: dark;
  --navy: #0a192f;
  --navy-light: #112240;
  --navy-deep: #060f1f;
  --navy-ink: #020c1b;
  --cyan: #64ffda;
  --cyan-soft: #8bffe8;
  --slate: #ccd6f6;
  --slate-muted: #8892b0;
  --slate-faint: #495670;
  --paper: #eae4d6;
  --paper-deep: #ded6c4;
  --graphite: #0a192f;
  --graphite-soft: #4b5563;
  --signal: #0b6153;
  --line-dark: rgba(255, 255, 255, 0.1);
  --line-paper: rgba(10, 25, 47, 0.16);
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --display: "Newsreader", Georgia, Cambria, "Times New Roman", serif;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  background-color: var(--navy-deep);
}

[x-cloak] {
  display: none !important;
}

::selection {
  background: var(--cyan);
  color: var(--navy);
}

.font-display {
  font-family: var(--display);
}

.mono-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  line-height: 1.4;
  text-transform: uppercase;
}

.section-kicker {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.64rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.section-kicker::before {
  content: "";
  width: 1.75rem;
  height: 1px;
  background: rgba(100, 255, 218, 0.6);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  flex: none;
  border: 1px solid rgba(100, 255, 218, 0.38);
  border-radius: 2px;
  font-family: var(--display);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--cyan);
  transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}

.group:hover .brand-mark {
  border-color: rgba(100, 255, 218, 0.75);
  background: rgba(100, 255, 218, 0.06);
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--slate-muted);
  transition: color 160ms ease;
  cursor: pointer;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.4rem;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--cyan);
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
  transform: scaleX(1);
}

.mobile-nav-link {
  display: block;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--line-dark);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--slate);
  transition: color 160ms ease;
}

.mobile-nav-link:hover {
  color: var(--cyan);
}

.footer-link {
  display: inline-block;
  padding-block: 0.15rem;
  color: inherit;
  transition: color 160ms ease;
}

.footer-link:hover {
  color: var(--cyan);
}

.control-select {
  appearance: none;
  cursor: pointer;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 0;
  padding: 0.2rem 1.05rem 0.2rem 0;
  background-color: transparent;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='5'%3E%3Cpath d='M1 1l3 3 3-3' fill='none' stroke='%238892b0' stroke-width='1.2'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.1rem center;
  background-size: 0.45rem 0.3rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-muted);
  transition: color 160ms ease, border-color 160ms ease;
}

.control-select:hover {
  color: var(--slate);
  border-color: rgba(100, 255, 218, 0.5);
}

.control-select:focus {
  border-color: var(--cyan);
  outline: none;
}

.control-select option {
  background: var(--navy-light);
  color: var(--slate);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  border-radius: 2px;
  background: var(--cyan);
  padding: 0.8rem 1.15rem;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1;
  color: var(--navy);
  transition: background-color 160ms ease, color 160ms ease;
}

.btn-primary:hover {
  background: var(--cyan-soft);
}

.btn-sm {
  padding: 0.52rem 0.78rem;
  font-size: 0.72rem;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border-bottom: 1px solid rgba(204, 214, 246, 0.35);
  padding-bottom: 0.15rem;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.3;
  color: var(--slate);
  transition: color 160ms ease, border-color 160ms ease;
}

.link-arrow:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.paper-section {
  border-top: 1px solid var(--line-paper);
  border-bottom: 1px solid var(--line-paper);
  background-color: var(--paper);
  color: var(--graphite);
}

.paper-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-bottom: 1px solid rgba(11, 97, 83, 0.35);
  padding-bottom: 0.1rem;
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--signal);
  transition: color 160ms ease, border-color 160ms ease;
}

.paper-link:hover {
  color: var(--graphite);
  border-color: var(--graphite);
}

.paper-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border-radius: 2px;
  background: var(--graphite);
  padding: 0.55rem 0.8rem;
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 1;
  color: var(--paper);
  transition: background-color 160ms ease;
}

.paper-btn:hover {
  background: var(--navy-light);
}

.paper-tag {
  border-left: 2px solid var(--signal);
  padding-left: 0.45rem;
  font-family: var(--mono);
  font-size: 0.56rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal);
}

.sheet {
  position: relative;
  z-index: 0;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 2px;
  background: var(--navy);
}

.sheet::before {
  content: "";
  position: absolute;
  inset: 9px -9px -9px 9px;
  z-index: -1;
  display: none;
  border: 1px solid rgba(100, 255, 218, 0.14);
  border-radius: 2px;
  pointer-events: none;
}

.scope-map-label text {
  font-family: var(--mono);
  font-size: 7px;
  font-weight: 500;
  letter-spacing: 0.12em;
  fill: var(--slate-muted);
  text-transform: uppercase;
}

.scope-map-center {
  fill: var(--cyan);
  fill-opacity: 0.85;
}

.ledger-head {
  display: none;
}

.ledger-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.65rem 1rem;
  border-bottom: 1px solid var(--line-paper);
  padding: 1.6rem 0;
}

.ledger-index {
  display: none;
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 300;
  line-height: 1.2;
  color: var(--graphite-soft);
}

.ledger-main,
.addon-main {
  min-width: 0;
}

.ledger-meta,
.ledger-fee,
.addon-meta,
.addon-fee {
  display: none;
}

.ledger-action,
.addon-action {
  grid-column: 1 / -1;
}

.ledger-mobile-fee,
.addon-mobile-fee {
  display: block;
  white-space: nowrap;
}

.addon-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.6rem 1rem;
  border-bottom: 1px solid var(--line-paper);
  padding: 1.2rem 0;
}

.path-row {
  display: grid;
  gap: 1rem;
  border-top: 1px solid var(--line-paper);
  padding-top: 1.25rem;
}

.practice-row {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding: 1.75rem 0;
}

.practice-row:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.lab-index {
  border-top: 1px solid rgba(100, 255, 218, 0.4);
}

.lab-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line-dark);
  padding: 0.6rem 0;
}

.lab-row {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: 1rem;
  border-bottom: 1px solid var(--line-dark);
  padding: 1.25rem 0;
}

.status-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-muted);
}

.status-mark::before {
  content: "";
  width: 4px;
  height: 4px;
  flex: none;
  border-radius: 999px;
  background: currentColor;
}

.status-development {
  color: var(--cyan);
}

.status-planned {
  color: var(--slate);
}

.status-research {
  color: var(--slate-muted);
}

.portrait-plate {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: end;
  gap: 0.75rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-top: 2px solid rgba(100, 255, 218, 0.55);
  border-radius: 2px;
  background: var(--navy);
  padding: 1rem;
}

.portrait-plate > :first-child {
  grid-column: 1 / -1;
}

.portrait-plate .font-display {
  font-size: 2.75rem;
}

@media (min-width: 640px) {
  .sheet::before {
    display: block;
  }

  .portrait-plate {
    display: flex;
    aspect-ratio: 4 / 5;
    flex-direction: column;
    justify-content: space-between;
    padding: 1.25rem;
  }

  .portrait-plate > :first-child {
    grid-column: auto;
  }

  .portrait-plate .font-display {
    font-size: 4.5rem;
  }
}

@media (min-width: 1024px) {
  .ledger-head {
    display: grid;
    grid-template-columns: 2.5rem minmax(0, 1fr) 7rem 8rem 8.5rem;
    gap: 1.5rem;
    align-items: end;
    border-bottom: 1px solid var(--line-paper);
    padding-bottom: 0.55rem;
    font-family: var(--mono);
    font-size: 0.64rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--graphite-soft);
  }

  .ledger-row {
    grid-template-columns: 2.5rem minmax(0, 1fr) 7rem 8rem 8.5rem;
    gap: 1.5rem;
    align-items: start;
  }

  .ledger-index,
  .ledger-meta,
  .ledger-fee,
  .addon-meta,
  .addon-fee {
    display: block;
  }

  .ledger-action,
  .addon-action {
    grid-column: auto;
    justify-self: end;
  }

  .ledger-mobile-fee,
  .addon-mobile-fee {
    display: none;
  }

  .ledger-row--featured {
    margin-right: -1rem;
    margin-left: -1rem;
    padding-right: 1rem;
    padding-left: 1rem;
    background: rgba(10, 25, 47, 0.035);
    box-shadow: inset 2px 0 0 var(--signal);
  }

  .addon-row {
    grid-template-columns: minmax(0, 1fr) 7.5rem 7rem 7.5rem;
    gap: 1.5rem;
    align-items: start;
  }

  .path-row {
    grid-template-columns: 3fr 6fr 3fr;
    gap: 2rem;
    align-items: start;
  }
}

:where(a, button, input, select, textarea, summary):focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.paper-section :where(a, button, input, select, textarea, summary):focus-visible {
  outline-color: var(--signal);
}

.card-hover {
  transition: border-color 160ms ease, background-color 160ms ease;
}

.card-hover:hover {
  border-color: rgba(100, 255, 218, 0.35);
  background-color: rgba(17, 34, 64, 0.85);
}

.timeline-line {
  background: linear-gradient(90deg, #64ffda 0%, rgba(100, 255, 218, 0.25) 60%, rgba(136, 146, 176, 0.2) 100%);
}

.prose-izkuna {
  color: #a8b2d1;
  line-height: 1.75;
}

.prose-izkuna h1,
.prose-izkuna h2,
.prose-izkuna h3,
.prose-izkuna h4 {
  color: #e6f1ff;
  font-family: var(--display);
  font-weight: 400;
  line-height: 1.25;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.prose-izkuna h1 { font-size: 2.25rem; margin-top: 0; }
.prose-izkuna h2 { font-size: 1.5rem; }
.prose-izkuna h3 { font-size: 1.2rem; }

.prose-izkuna p,
.prose-izkuna ul,
.prose-izkuna ol,
.prose-izkuna table {
  margin-bottom: 1rem;
}

.prose-izkuna ul { list-style: disc; padding-left: 1.25rem; }
.prose-izkuna ol { list-style: decimal; padding-left: 1.25rem; }
.prose-izkuna li { margin-bottom: 0.35rem; }

.prose-izkuna a {
  color: #64ffda;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose-izkuna strong { color: #e6f1ff; }

.prose-izkuna code {
  background: #112240;
  border: 1px solid #233554;
  border-radius: 4px;
  padding: 0.1rem 0.35rem;
  font-size: 0.9em;
}

.prose-izkuna pre {
  background: #020c1b;
  border: 1px solid #233554;
  border-radius: 10px;
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1rem;
}

.prose-izkuna pre code {
  background: transparent;
  border: 0;
  padding: 0;
}

.prose-izkuna blockquote {
  border-left: 3px solid #64ffda;
  padding-left: 1rem;
  color: #ccd6f6;
}

.prose-izkuna table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.prose-izkuna th,
.prose-izkuna td {
  border: 1px solid #233554;
  padding: 0.5rem 0.65rem;
  text-align: left;
}

.prose-izkuna th {
  background: #112240;
  color: #e6f1ff;
}

.prose-izkuna img {
  border-radius: 2px;
  border: 1px solid #233554;
}

input[type="checkbox"] {
  accent-color: #64ffda;
}

.page-head {
  border-bottom: 1px solid var(--line-dark);
  padding: 3.25rem 0 2.25rem;
}

@media (min-width: 640px) {
  .page-head {
    padding: 4.5rem 0 2.75rem;
  }
}

.page-title {
  margin-top: 0.9rem;
  font-family: var(--display);
  font-size: clamp(2.6rem, 5.2vw, 4.25rem);
  font-weight: 400;
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: #fff;
}

.page-intro {
  margin-top: 1.1rem;
  max-width: 48ch;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--slate-muted);
}

.section-title {
  font-family: var(--display);
  font-size: clamp(1.7rem, 2.4vw, 2.25rem);
  font-weight: 400;
  line-height: 1.2;
  color: #fff;
}

.field {
  width: 100%;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 0;
  background: transparent;
  padding: 0.85rem 0 0.85rem 2rem;
  font-size: 0.95rem;
  color: #fff;
  transition: border-color 160ms ease;
}

.field::placeholder {
  color: var(--slate-faint);
}

.field:focus {
  outline: none;
  border-color: var(--cyan);
}

.form-field {
  width: 100%;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 0;
  background: transparent;
  padding: 0.65rem 0;
  font-size: 0.95rem;
  color: #fff;
  transition: border-color 160ms ease;
}

.form-field::placeholder {
  color: var(--slate-faint);
}

.form-field:focus {
  outline: none;
  border-color: var(--cyan);
}

.form-select {
  appearance: none;
  width: 100%;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 0;
  background-color: transparent;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='5'%3E%3Cpath d='M1 1l3 3 3-3' fill='none' stroke='%238892b0' stroke-width='1.2'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.1rem center;
  background-size: 0.5rem 0.32rem;
  padding: 0.65rem 1.25rem 0.65rem 0;
  font-size: 0.95rem;
  color: #fff;
  transition: border-color 160ms ease;
}

.form-select:focus {
  outline: none;
  border-color: var(--cyan);
}

.form-select option {
  background: var(--navy);
  color: #fff;
}

.faq-item {
  border-top: 1px solid var(--line-dark);
}

.faq-item:last-child {
  border-bottom: 1px solid var(--line-dark);
}

.faq-item summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.15rem 0;
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  flex: none;
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--cyan);
}

.faq-item[open] summary::after {
  content: "\2212";
}

.faq-item .faq-answer {
  max-width: 72ch;
  padding: 0 0 1.35rem;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--slate-muted);
  white-space: pre-line;
}

.post-row {
  display: grid;
  gap: 0.4rem 1.5rem;
  border-top: 1px solid var(--line-dark);
  padding: 1.55rem 0;
  transition: background-color 160ms ease;
}

.post-row:last-child {
  border-bottom: 1px solid var(--line-dark);
}

.post-row:hover {
  background: rgba(255, 255, 255, 0.02);
}

.post-title {
  font-family: var(--display);
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 400;
  line-height: 1.2;
  color: #fff;
}

@media (min-width: 768px) {
  .post-row {
    grid-template-columns: 2.75rem minmax(0, 1fr) auto;
    align-items: start;
  }
}

.spec-row {
  display: grid;
  gap: 0.35rem;
  border-top: 1px solid var(--line-dark);
  padding: 0.9rem 0;
}

.spec-row:last-child {
  border-bottom: 1px solid var(--line-dark);
}

@media (min-width: 640px) {
  .spec-row {
    grid-template-columns: 11rem minmax(0, 1fr);
    align-items: baseline;
    gap: 1.5rem;
  }
}

.spec-label {
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-faint);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table th {
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.6rem 0.75rem 0.6rem 0;
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-align: left;
  text-transform: uppercase;
  color: var(--slate-faint);
}

.data-table td {
  border-bottom: 1px solid var(--line-dark);
  padding: 0.9rem 0.75rem 0.9rem 0;
  color: var(--slate-muted);
  vertical-align: top;
}

.data-table td:first-child {
  color: #fff;
}

.note-line {
  border-left: 2px solid rgba(100, 255, 218, 0.55);
  padding-left: 1rem;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}