:root {
  color-scheme: light;
  --ink: #14231f;
  --muted: #5b6b66;
  --paper: #f7faf8;
  --surface: #ffffff;
  --line: #d9e3de;
  --brand: #0a6c56;
  --brand-dark: #064b3d;
  --brand-soft: #dff3ea;
  --warning: #945800;
  --warning-soft: #fff4d6;
  --shadow: 0 14px 40px rgb(20 35 31 / 8%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 85% 8%, rgb(10 108 86 / 9%), transparent 28rem),
    var(--paper);
  line-height: 1.55;
}

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: var(--brand-dark);
  text-underline-offset: 0.2em;
}

button {
  min-height: 2.75rem;
  border: 1px solid var(--brand);
  border-radius: 0.7rem;
  padding: 0.65rem 1rem;
  color: #fff;
  background: var(--brand);
  cursor: pointer;
  font-weight: 700;
}

button:hover {
  background: var(--brand-dark);
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid #ffbd4a;
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 20;
  transform: translateY(-180%);
  padding: 0.65rem 0.9rem;
  border-radius: 0.5rem;
  color: #fff;
  background: var(--brand-dark);
}

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

.site-header {
  display: flex;
  align-items: center;
  gap: 2rem;
  min-height: 4.5rem;
  padding: 0 4vw;
  border-bottom: 1px solid rgb(217 227 222 / 75%);
  background: rgb(247 250 248 / 88%);
  backdrop-filter: blur(12px);
}

.brand {
  color: var(--ink);
  font-size: 1.25rem;
  font-weight: 850;
  letter-spacing: -0.04em;
  text-decoration: none;
}

.brand span {
  color: var(--brand);
}

.site-header nav {
  display: flex;
  gap: 1.25rem;
  margin-left: auto;
}

.site-header nav a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.site-header nav a:hover {
  color: var(--ink);
}

.alpha-badge,
.status-badge,
.source-badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border-radius: 999px;
  padding: 0.3rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 750;
}

.alpha-badge {
  color: var(--brand-dark);
  background: var(--brand-soft);
}

main {
  width: min(1180px, 92vw);
  margin: 0 auto;
}

.hero {
  padding: 5.8rem 0 3.5rem;
}

.eyebrow {
  margin: 0 0 0.6rem;
  color: var(--brand);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 860px;
  margin-bottom: 1rem;
  font-size: clamp(2.4rem, 7vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.065em;
}

h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: 1.18;
  letter-spacing: -0.035em;
}

.hero-copy {
  max-width: 690px;
  color: var(--muted);
  font-size: 1.08rem;
}

.search-form {
  max-width: 940px;
  margin-top: 2.4rem;
}

.search-form > label,
.decoder-grid label {
  display: block;
  margin-bottom: 0.55rem;
  font-size: 0.86rem;
  font-weight: 800;
}

.search-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.6rem;
  padding: 0.45rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.search-row input {
  width: 100%;
  min-height: 3.4rem;
  border: 0;
  padding: 0 0.8rem;
  color: var(--ink);
  background: transparent;
}

.search-row input:focus-visible {
  border-radius: 0.55rem;
}

.search-row button {
  min-width: 7.5rem;
}

.examples {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-top: 0.9rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.examples button {
  min-height: auto;
  border-color: var(--line);
  padding: 0.3rem 0.55rem;
  color: var(--muted);
  background: var(--surface);
  font-size: 0.76rem;
  font-weight: 650;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 940px;
  margin: 1.8rem 0 0;
  border-top: 1px solid var(--line);
  padding: 1rem 0 0;
  list-style: none;
}

.trust-strip li {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.15rem 1.2rem;
  border-left: 1px solid var(--line);
}

.trust-strip li:first-child {
  border-left: 0;
  padding-left: 0;
}

.trust-strip strong {
  font-size: 0.78rem;
}

.trust-strip span {
  color: var(--muted);
  font-size: 0.72rem;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(220px, 0.72fr) minmax(0, 2.28fr);
  gap: 1.2rem;
  margin-bottom: 5rem;
}

.tree-panel,
.detail-panel,
.decoder-section,
.safety-section,
.research-section {
  border: 1px solid var(--line);
  border-radius: 1.15rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.tree-panel,
.detail-panel {
  padding: 1.4rem;
}

.panel-heading h2 {
  margin-bottom: 1.2rem;
  font-size: 1.2rem;
}

.object-path {
  margin: 0;
  padding: 0;
  list-style: none;
}

.object-path li {
  position: relative;
  margin-left: 0.7rem;
  padding: 0.4rem 0.2rem 0.4rem 1rem;
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.78rem;
}

.object-path li:last-child {
  color: var(--brand-dark);
  font-weight: 800;
}

.object-path li::before {
  position: absolute;
  top: 0.95rem;
  left: -0.23rem;
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: var(--line);
  content: "";
}

.object-path li:last-child::before {
  background: var(--brand);
}

.tree-note,
.limit-note {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.76rem;
}

.detail-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--line);
}

.detail-header h2 {
  margin-bottom: 0.25rem;
}

.module-symbol,
code,
pre,
textarea,
.oid-value {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.module-symbol,
.oid-value {
  color: var(--muted);
  font-size: 0.86rem;
}

.status-badge {
  color: var(--brand-dark);
  background: var(--brand-soft);
}

.source-badge {
  color: #42514d;
  background: #eef3f1;
}

.fact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.6rem;
  margin: 1.2rem 0;
}

.fact {
  min-width: 0;
  padding: 0.85rem;
  border-radius: 0.75rem;
  background: var(--paper);
}

.fact dt {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.fact dd {
  margin: 0.25rem 0 0;
  overflow-wrap: anywhere;
  font-size: 0.86rem;
  font-weight: 720;
}

.detail-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.context-card {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
}

.context-card h3 {
  margin-bottom: 0.45rem;
  font-size: 0.92rem;
}

.context-card p,
.context-card li {
  color: var(--muted);
  font-size: 0.82rem;
}

.context-card ul {
  margin: 0;
  padding-left: 1.1rem;
}

.command {
  overflow-x: auto;
  margin: 0.5rem 0 0;
  border-radius: 0.6rem;
  padding: 0.75rem;
  color: #d8fff4;
  background: #102a23;
  font-size: 0.76rem;
  white-space: pre-wrap;
}

.safety-section {
  margin-bottom: 1.2rem;
  padding: clamp(1.3rem, 4vw, 2.2rem);
}

.safety-heading {
  margin-bottom: 1.2rem;
}

.safety-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

.safety-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  padding: 1.1rem;
  background: var(--paper);
}

.safety-card.api-card {
  grid-column: 1 / -1;
  background: linear-gradient(110deg, var(--paper), var(--brand-soft));
}

.card-number {
  display: grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  border: 1px solid #b9d5cc;
  border-radius: 50%;
  color: var(--brand-dark);
  background: var(--surface);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.7rem;
  font-weight: 800;
}

.safety-card h3 {
  margin-bottom: 0.35rem;
  font-size: 0.96rem;
}

.safety-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.safety-card code {
  overflow-wrap: anywhere;
  color: var(--brand-dark);
  font-size: 0.78rem;
  font-weight: 750;
}

.card-title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
}

.api-status {
  border: 1px solid #d8b56f;
  border-radius: 999px;
  padding: 0.18rem 0.5rem;
  color: var(--warning);
  background: var(--warning-soft);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.decoder-section {
  margin-bottom: 1.2rem;
  padding: clamp(1.3rem, 4vw, 2.2rem);
}

.section-intro {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: end;
}

.section-intro > p {
  color: var(--muted);
  font-size: 0.9rem;
}

.decoder-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 1rem;
  margin-top: 1rem;
}

textarea {
  width: 100%;
  resize: vertical;
  border: 1px solid #b9c8c2;
  border-radius: 0.8rem;
  padding: 0.9rem;
  color: #d8fff4;
  background: #102a23;
  font-size: 0.78rem;
  line-height: 1.65;
}

.decoder-actions {
  display: flex;
  gap: 0.6rem;
  margin-top: 0.7rem;
}

button.secondary {
  color: var(--brand-dark);
  background: transparent;
}

button.secondary:hover {
  background: var(--brand-soft);
}

.decoder-summary {
  min-height: 10rem;
  border-radius: 0.8rem;
  padding: 1rem;
  background: var(--paper);
}

.decoder-summary strong {
  display: block;
  font-size: 1.8rem;
  line-height: 1;
}

.summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}

.summary-grid div {
  padding: 0.8rem;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  background: var(--surface);
}

.summary-grid span {
  color: var(--muted);
  font-size: 0.72rem;
}

.table-scroll {
  overflow-x: auto;
  margin-top: 1.2rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

caption {
  padding: 0.6rem 0;
  color: var(--muted);
  text-align: left;
}

th,
td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

td code {
  font-size: 0.74rem;
}

.unresolved {
  color: var(--warning);
  font-weight: 750;
}

.research-section {
  margin-bottom: 5rem;
  padding: clamp(1.3rem, 4vw, 2.2rem);
  color: #e4fff7;
  background: #102a23;
}

.research-section h2 {
  max-width: 700px;
}

.research-section p:not(.eyebrow) {
  max-width: 800px;
  color: #bcd0ca;
}

.research-section a {
  color: #8de6cc;
  font-weight: 800;
}

footer {
  padding: 2rem 4vw;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
  text-align: center;
}

footer p {
  margin-bottom: 0.35rem;
}

.open-source-note {
  color: #7b8884;
  font-size: 0.7rem;
}

.open-source-note a {
  color: inherit;
}

@media (max-width: 820px) {
  .alpha-badge {
    display: none;
  }

  .workspace,
  .section-intro,
  .decoder-grid,
  .detail-columns,
  .safety-grid {
    grid-template-columns: 1fr;
  }

  .safety-card.api-card {
    grid-column: auto;
  }

  .tree-panel {
    display: none;
  }

  .fact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .site-header {
    gap: 1rem;
  }

  .site-header nav a:not(:first-child) {
    display: none;
  }

  .hero {
    padding-top: 3.5rem;
  }

  .trust-strip {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }

  .trust-strip li,
  .trust-strip li:first-child {
    border-left: 3px solid var(--brand-soft);
    padding-left: 0.75rem;
  }

  .search-row {
    grid-template-columns: 1fr;
  }

  .search-row button {
    width: 100%;
  }

  .fact-grid,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .decoder-actions {
    flex-direction: column;
  }
}

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