/* ==========================================================================
   LookzUp API Docs — "Ledger & Ticket" visual system
   ========================================================================== */

:root {
  --paper: #eef1e6;
  --paper-deep: #e4e8d6;
  --card: #f7f8f0;
  --ink: #1e2a38;
  --ink-soft: #4b5a6a;
  --ink-faint: #7c8a79;
  --rule: #c7cdb4;
  --rule-strong: #a9b394;
  --stamp-red: #a5382c;
  --stamp-red-deep: #7c2a20;
  --stamp-gold: #93712a;
  --code-bg: #e6e9d7;
  --code-border: #cdd3ba;
  --white: #fbfbf6;
  --shadow: 0 1px 0 rgba(30, 42, 56, 0.06), 0 8px 24px -16px rgba(30, 42, 56, 0.35);
  --radius: 3px;
  --font-display: 'Roboto Slab', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Consolas', monospace;
  --sidebar-w: 288px;
  --topbar-h: 68px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--topbar-h) + 18px);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    repeating-linear-gradient(
      to bottom,
      transparent 0px,
      transparent 27px,
      rgba(169, 179, 148, 0.16) 28px
    ),
    var(--paper);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: var(--white);
  padding: 10px 16px;
  z-index: 999;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
}

a { color: inherit; }

code, kbd, pre {
  font-family: var(--font-mono);
}

/* ---------------------------------------------------------------------
   Top bar
   --------------------------------------------------------------------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 60;
  height: var(--topbar-h);
  background: var(--ink);
  color: var(--white);
  border-bottom: 3px solid var(--stamp-red);
}

.topbar__inner {
  height: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 34px;
  height: 34px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--white);
  border-radius: 1px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--white);
  flex-shrink: 0;
}
.brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: var(--stamp-red);
  color: var(--white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  border-radius: 3px;
  letter-spacing: 0.02em;
}
.brand__logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  width: 40px;
  height: 40px;
}
.brand__text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.brand__text em {
  font-style: normal;
  color: #c7d0c1;
  font-weight: 400;
}

.topbar__search {
  position: relative;
  flex: 1;
  max-width: 360px;
  margin-left: auto;
}
.topbar__search input {
  width: 100%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: var(--white);
  border-radius: 3px;
  padding: 9px 34px 9px 12px;
  font-family: var(--font-body);
  font-size: 14px;
}
.topbar__search input::placeholder { color: #aab4a5; }
.topbar__search input:focus {
  outline: 2px solid var(--stamp-gold);
  outline-offset: 1px;
  background: rgba(255, 255, 255, 0.12);
}
.topbar__search kbd {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 3px;
  padding: 2px 6px;
  color: #c7d0c1;
  pointer-events: none;
}

.topbar__base {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-decoration: none;
  color: var(--white);
  flex-shrink: 0;
}
.topbar__base-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #9fab97;
}
.topbar__base code {
  font-size: 13px;
  color: #e7ecd9;
}

/* ---------------------------------------------------------------------
   Layout
   --------------------------------------------------------------------- */

.layout {
  display: flex;
  max-width: 1400px;
  margin: 0 auto;
}

.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  border-right: 1px solid var(--rule);
}
.sidebar__scroll {
  position: sticky;
  top: var(--topbar-h);
  max-height: calc(100vh - var(--topbar-h));
  overflow-y: auto;
  padding: 24px 10px 60px 20px;
}

.nav-group { margin-bottom: 6px; }
.nav-group__title {
  display: flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14.5px;
  color: var(--ink);
  padding: 7px 8px;
  border-radius: 3px;
}
.nav-group__title span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--stamp-red);
  min-width: 14px;
}
.nav-group__title:hover,
.nav-group__title.is-active {
  background: var(--paper-deep);
}
.nav-group ul {
  list-style: none;
  margin: 2px 0 10px 30px;
  padding: 0;
  border-left: 1px dashed var(--rule-strong);
}
.nav-group li { margin: 0; }
.nav-group a[data-nav]:not(.nav-group__title) {
  display: block;
  text-decoration: none;
  font-size: 13.5px;
  color: var(--ink-soft);
  padding: 5px 10px;
  margin-left: -1px;
  border-left: 2px solid transparent;
}
.nav-group a[data-nav]:not(.nav-group__title):hover {
  color: var(--ink);
}
.nav-group a[data-nav].is-active {
  color: var(--stamp-red-deep);
  border-left-color: var(--stamp-red);
  font-weight: 500;
}

main {
  flex: 1;
  min-width: 0;
  padding: 0 40px 80px;
}

/* ---------------------------------------------------------------------
   Hero
   --------------------------------------------------------------------- */

.hero {
  position: relative;
  margin: 40px 0 56px;
}
.hero__ticket {
  background: var(--card);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  padding: 34px 38px 30px;
  box-shadow: var(--shadow);
  position: relative;
}
.hero__ticket-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.hero__eyebrow {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--stamp-gold);
  font-weight: 600;
}
.hero__ticket-no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-faint);
  border: 1px dashed var(--rule-strong);
  padding: 3px 9px;
  border-radius: 3px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 46px);
  line-height: 1.1;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}
.hero__lede {
  font-size: 16.5px;
  color: var(--ink-soft);
  /*max-width: 62ch;*/
  margin: 0 0 24px;
}
.hero__base {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 18px;
  border-top: 1px dashed var(--rule-strong);
}
.hero__base > span {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
}
.hero__base-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.hero__base-row code {
  font-size: 15px;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  padding: 6px 10px;
  border-radius: 3px;
}
.hero__perf {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -9px;
  height: 18px;
  background:
    radial-gradient(circle at 12px 0, transparent 9px, var(--paper) 9.5px) top / 24px 18px repeat-x;
}

/* ---------------------------------------------------------------------
   Chapters & tables
   --------------------------------------------------------------------- */

.chapter {
  margin: 64px 0;
  scroll-margin-top: calc(var(--topbar-h) + 18px);
}
.chapter__head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink);
}
.chapter__num {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--stamp-red);
  border: 1px solid var(--stamp-red);
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.chapter__head h2 {
  font-family: var(--font-display);
  font-size: 27px;
  margin: 0;
  letter-spacing: -0.01em;
}
.chapter > p {
  color: var(--ink-soft);
  /*max-width: 70ch;*/
  font-size: 15.5px;
  margin: 0 0 22px;
}

.ledger-table {
  width: 100%;
  border-collapse: collapse;
  margin: 4px 0 26px;
  font-size: 13.5px;
  background: var(--card);
  border: 1px solid var(--rule-strong);
}
.ledger-table th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--white);
  background: var(--ink);
  padding: 9px 12px;
}
.ledger-table td {
  padding: 9px 12px;
  border-top: 1px solid var(--rule);
  vertical-align: top;
}
.ledger-table tr:nth-child(even) td {
  background: rgba(169, 179, 148, 0.08);
}
.ledger-table code {
  font-size: 12.5px;
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 3px;
}
.ledger-table--flow td:first-child {
  font-family: var(--font-mono);
  color: var(--stamp-red-deep);
  width: 70px;
}

.ledger-list {
  margin: 0 0 8px;
  padding-left: 20px;
}
.ledger-list li {
  margin-bottom: 8px;
  font-size: 14.5px;
  color: var(--ink-soft);
}
.ledger-list code {
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 12.5px;
  color: var(--ink);
}
.ledger-list--wide li {
  font-size: 15px;
  max-width: 78ch;
}

/* ---------------------------------------------------------------------
   Endpoint tickets
   --------------------------------------------------------------------- */

.ticket {
  background: var(--card);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  margin: 0 0 40px;
  box-shadow: var(--shadow);
  scroll-margin-top: calc(var(--topbar-h) + 18px);
  overflow: hidden;
}

.ticket__stub {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--paper-deep);
}
.ticket__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
}

.stamp {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  padding: 4px 11px;
  border-radius: 3px;
  transform: rotate(-2deg);
  border: 1.5px solid currentColor;
}
.stamp--post { color: var(--stamp-red-deep); background: rgba(165, 56, 44, 0.08); }
.stamp--get  { color: var(--stamp-gold); background: rgba(147, 113, 42, 0.1); }

.ticket__perf {
  height: 0;
  border-top: 1px dashed var(--rule-strong);
  position: relative;
}
.ticket__perf::before,
.ticket__perf::after {
  content: '';
  position: absolute;
  top: -6px;
  width: 12px;
  height: 12px;
  background: var(--paper);
  border-radius: 50%;
}
.ticket__perf::before { left: -6px; }
.ticket__perf::after { right: -6px; }

.ticket__body {
  padding: 24px 26px 26px;
}
.ticket__title {
  font-family: var(--font-display);
  font-size: 20px;
  margin: 0 0 8px;
  letter-spacing: -0.005em;
}
.ticket__desc {
  color: var(--ink-soft);
  font-size: 14.5px;
  margin: 0 0 16px;
  /*max-width: 72ch;*/
}

.path-line {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--ink);
  color: var(--white);
  padding: 10px 14px;
  border-radius: 3px;
  margin-bottom: 20px;
  font-size: 14px;
  overflow-x: auto;
}
.path-line__method {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--stamp-red);
  flex-shrink: 0;
}
.path-line code {
  color: #e7ecd9;
  background: none;
  white-space: nowrap;
}

.field-block { margin-bottom: 20px; }
.field-block:last-child { margin-bottom: 0; }
.field-label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  margin: 0 0 8px;
}

.note {
  font-size: 14px;
  color: var(--ink-soft);
  background: var(--paper-deep);
  border-left: 3px solid var(--stamp-gold);
  padding: 10px 14px;
  border-radius: 0 3px 3px 0;
  margin: 14px 0 0;
}
.note code {
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 12.5px;
}

/* ---------------------------------------------------------------------
   Code / receipt blocks
   --------------------------------------------------------------------- */

.receipt {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.receipt__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 12px;
  background: var(--paper-deep);
  border-bottom: 1px dashed var(--rule-strong);
}
.receipt__lang {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
}
.receipt pre {
  margin: 0;
  padding: 14px 16px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.55;
  background: none !important;
}
.receipt code {
  font-family: var(--font-mono) !important;
  font-size: 13px !important;
  text-shadow: none !important;
  background: none !important;
}

.copy-btn {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: transparent;
  border: 1px solid var(--rule-strong);
  color: var(--ink-soft);
  padding: 3px 10px;
  border-radius: 3px;
  cursor: pointer;
}
.copy-btn:hover {
  background: var(--ink);
  color: var(--white);
  border-color: var(--ink);
}
.copy-btn.is-copied {
  background: var(--stamp-red);
  border-color: var(--stamp-red);
  color: var(--white);
}
.copy-btn--inline {
  padding: 6px 14px;
}

/* ---------------------------------------------------------------------
   Best practices list
   --------------------------------------------------------------------- */

.practice-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
}
.practice-list li {
  display: flex;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--rule);
  font-size: 14.5px;
  color: var(--ink-soft);
}
.practice-list li:first-child { border-top: none; }
.practice-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--stamp-red-deep);
  background: var(--paper-deep);
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
  width: 30px;
  height: 24px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.practice-list strong {
  color: var(--ink);
}

/* ---------------------------------------------------------------------
   Footer
   --------------------------------------------------------------------- */

.site-footer {
  margin-top: 70px;
  padding-top: 28px;
  border-top: 2px solid var(--ink);
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.site-footer__stamp {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border: 2px solid var(--stamp-red);
  color: var(--stamp-red);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  transform: rotate(-4deg);
}
.site-footer p {
  font-size: 13px;
  color: var(--ink-faint);
  /*max-width: 68ch;*/
  margin: 0;
}
.site-footer code {
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 3px;
}

/* ---------------------------------------------------------------------
   Misc controls
   --------------------------------------------------------------------- */

.to-top {
  position: fixed;
  right: 26px;
  bottom: 26px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--rule-strong);
  background: var(--card);
  color: var(--ink);
  font-size: 18px;
  cursor: pointer;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 40;
}
.to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.to-top:hover { background: var(--ink); color: var(--white); }

.scrim {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(30, 42, 56, 0.5);
  z-index: 45;
}
.scrim.is-visible { display: block; }

mark.search-hit {
  background: rgba(165, 56, 44, 0.18);
  color: inherit;
  border-radius: 2px;
}

[data-search-hidden] { display: none !important; }

/* ---------------------------------------------------------------------
   Responsive
   --------------------------------------------------------------------- */

@media (max-width: 980px) {
  .nav-toggle { display: flex; }
  .topbar__search { max-width: 220px; }
  .topbar__base { display: none; }

  .sidebar {
    position: fixed;
    top: var(--topbar-h);
    left: 0;
    bottom: 0;
    width: 84vw;
    max-width: 320px;
    background: var(--paper);
    border-right: 1px solid var(--rule-strong);
    transform: translateX(-100%);
    transition: transform 0.22s ease;
    z-index: 50;
  }
  .sidebar.is-open { transform: translateX(0); }
  .sidebar__scroll {
    position: static;
    max-height: calc(100vh - var(--topbar-h));
  }

  main { padding: 0 18px 60px; }
  .hero__ticket { padding: 26px 22px 24px; }
  .ticket__body { padding: 20px 18px 22px; }
}

@media (max-width: 560px) {
  .brand__text em { display: block; font-size: 11px; }
  .hero h1 { font-size: 28px; }
}