/* Locus API dash - monochrome, serif, matches the main app's look
   (monochrome token block).
   Signature: worksheet-card + JSON-grade hero artifact on a graph-paper grid;
   contrast comes from ink-inverted blocks, never color. */

:root {
  --bg: #ffffff;
  --fg: #111827;
  --muted: #6b7280;
  --hairline: #e5e7eb;
  --panel: #ffffff;
  --accent: #111827;
  --accent-fg: #ffffff;
  --alert-bg: #fef2f2;
  --alert-border: #fecaca;
  --alert-fg: #b91c1c;
  --code-bg: #f9fafb;
  --ok: #047857;
  --grid-line: rgba(17, 24, 39, 0.06);
  --card-shadow: 0 1px 2px rgba(17, 24, 39, 0.06), 0 8px 24px rgba(17, 24, 39, 0.05);
}

html.dark {
  --bg: #030712;
  --fg: #f3f4f6;
  --muted: #9ca3af;
  --hairline: #1f2937;
  --panel: #0b1120;
  --accent: #f3f4f6;
  --accent-fg: #030712;
  --alert-bg: #1f0a0a;
  --alert-border: #7f1d1d;
  --alert-fg: #fca5a5;
  --code-bg: #0b1120;
  --ok: #34d399;
  --grid-line: rgba(243, 244, 246, 0.07);
  --card-shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 8px 24px rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: Lora, Georgia, 'Times New Roman', serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

:is(a, button, input, [tabindex]):focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 2px;
}

/* Mono utility voice (eyebrows, tags, code) */
.mono,
.eyebrow {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

.eyebrow {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 18px;
}

/* Top bar */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 20px 28px;
  border-bottom: 1px solid var(--hairline);
}

.wordmark {
  font-size: 20px;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.01em;
}

.wordmark-api {
  margin-left: 8px;
  font-weight: 500;
  font-size: 12px;
  color: var(--accent-fg);
  background: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 3px;
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  position: relative;
  top: -2px;
}

.topnav { display: flex; gap: 20px; }

.topnav-link {
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
}
.topnav-link:hover { color: var(--fg); }

/* Page scaffold */
.page {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 28px 80px;
}

/* Hero: headline left, worksheet-card artifact right, graph-paper backdrop */
.hero {
  position: relative;
  padding: 84px 0 72px;
  border-bottom: 1px solid var(--hairline);
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 56px;
  align-items: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 28px 28px;
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 60% 40%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 90% 80% at 60% 40%, #000 30%, transparent 75%);
  pointer-events: none;
}

.hero-copy { position: relative; }

.hero h1 {
  font-size: clamp(34px, 4.6vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0 0 20px;
  font-weight: 700;
}
.hero h1 em {
  font-style: italic;
  font-weight: 500;
}

.hero-sub {
  max-width: 34em;
  color: var(--muted);
  font-size: 17px;
  margin: 0 0 30px;
}

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* The signature artifact: a worksheet problem card wired to its grade JSON */
.hero-artifact {
  position: relative;
  display: grid;
  gap: 0;
  animation: rise 0.6s ease-out both;
}

.problem-card {
  background: var(--panel);
  border: 1px solid var(--hairline);
  border-radius: 6px;
  box-shadow: var(--card-shadow);
  padding: 20px 22px;
  position: relative;
  z-index: 1;
}
.problem-card-head {
  display: flex;
  justify-content: space-between;
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 10px;
  margin-bottom: 14px;
}
.problem-statement {
  font-size: 19px;
  margin: 0 0 14px;
}
.problem-statement .math { font-style: italic; }
.problem-answer {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 15px;
}
.problem-answer .answer-label {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.problem-answer .answer-value {
  border-bottom: 1px dashed var(--muted);
  font-style: italic;
  padding: 0 4px 2px;
}

/* dashed wire from card to response */
.artifact-wire {
  width: 1px;
  height: 26px;
  margin-left: 40px;
  border-left: 1px dashed var(--muted);
}

.grade-response {
  background: var(--accent);
  color: var(--accent-fg);
  border-radius: 6px;
  padding: 14px 18px;
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  line-height: 1.7;
  animation: rise 0.6s ease-out 0.35s both;
}
.grade-response .resp-route { opacity: 0.55; }
.grade-response .resp-ok {
  animation: reveal 0.4s ease-out 1.1s both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes reveal {
  from { opacity: 0; }
  to { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-artifact, .grade-response, .grade-response .resp-ok { animation: none; }
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 18px;
  border: 1px solid var(--hairline);
  border-radius: 4px;
  font-family: inherit;
  font-size: 15px;
  color: var(--fg);
  background: var(--bg);
  text-decoration: none;
  cursor: pointer;
}
.btn:hover { border-color: var(--muted); }

.btn-primary {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}
.btn-primary:hover { opacity: 0.88; border-color: var(--accent); }
.btn:disabled { opacity: 0.5; cursor: default; }

.btn-small { padding: 5px 12px; font-size: 13px; }

/* Sections */
.section {
  padding: 60px 0;
  border-bottom: 1px solid var(--hairline);
}
.section h2 {
  font-size: 26px;
  letter-spacing: -0.01em;
  margin: 0 0 26px;
  font-weight: 700;
}
.section > p { max-width: 46em; color: var(--muted); }

/* Ink band: the code-demo section is inverted for contrast */
.section-ink {
  background: var(--accent);
  color: var(--accent-fg);
  border-bottom: none;
  border-radius: 8px;
  padding: 48px 44px 52px;
  margin: 60px 0;
}
.section-ink h2 { color: var(--accent-fg); }
.section-ink > p { color: var(--accent-fg); opacity: 0.7; }
.section-ink code {
  background: transparent;
  border-color: color-mix(in srgb, var(--accent-fg) 30%, transparent);
  color: var(--accent-fg);
}
.section-ink .code-tab { color: color-mix(in srgb, var(--accent-fg) 65%, transparent); }
.section-ink .code-tab.active {
  color: var(--accent);
  background: var(--accent-fg);
  border-color: var(--accent-fg);
}
.section-ink .code-body pre {
  background: color-mix(in srgb, var(--accent-fg) 8%, transparent);
  border-color: color-mix(in srgb, var(--accent-fg) 25%, transparent);
  color: var(--accent-fg);
}
.section-ink .code-copy {
  background: transparent;
  color: color-mix(in srgb, var(--accent-fg) 75%, transparent);
  border-color: color-mix(in srgb, var(--accent-fg) 35%, transparent);
}
.section-ink .code-copy:hover { color: var(--accent-fg); border-color: var(--accent-fg); }

/* Feature list */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px 44px;
  margin: 0;
}
.features > div {
  border-top: 2px solid var(--fg);
  padding-top: 14px;
}
.features dt { font-weight: 700; margin-bottom: 6px; font-size: 16px; }
.features dd { margin: 0; color: var(--muted); font-size: 15px; }

/* Panels & forms */
.panel {
  border: 1px solid var(--hairline);
  border-radius: 6px;
  background: var(--panel);
  padding: 24px;
  margin-bottom: 20px;
}
.panel p { margin: 0 0 14px; }
.panel p:last-child { margin-bottom: 0; }
.panel-title { margin: 0 0 10px; font-size: 17px; font-weight: 600; }

.form { display: grid; gap: 16px; }
.form label {
  display: grid;
  gap: 6px;
  font-size: 14px;
  color: var(--muted);
}
.form input {
  font-family: inherit;
  font-size: 15px;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--hairline);
  border-radius: 4px;
  padding: 9px 12px;
}
.form input:focus { outline: none; border-color: var(--muted); }

.alert {
  background: var(--alert-bg);
  border: 1px solid var(--alert-border);
  color: var(--alert-fg);
  border-radius: 4px;
  padding: 10px 14px;
  font-size: 14px;
}

.muted { color: var(--muted); font-size: 14px; }

/* Footer */
.footer {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px 28px 40px;
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--muted);
}
.footer-links { display: flex; gap: 16px; }
.footer a { color: inherit; }

.theme-toggle {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
}
.theme-toggle:hover { color: var(--fg); }

/* Code samples (docs + landing) */
.code-sample { margin: 20px 0; }
.code-tabs { display: flex; gap: 4px; margin-bottom: -1px; }
.code-tab {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 4px 4px 0 0;
  padding: 5px 12px;
  cursor: pointer;
}
.code-tab.active {
  color: var(--fg);
  border-color: var(--hairline);
  border-bottom-color: var(--code-bg);
  background: var(--code-bg);
}
/* Right side of the tabs row: Run + Copy live here, never over the code. */
.code-actions {
  margin-left: auto;
  display: flex;
  gap: 6px;
  align-items: center;
  padding-bottom: 4px;
}

.code-body { position: relative; }
.code-body pre {
  margin: 0;
  background: var(--code-bg);
  border: 1px solid var(--hairline);
  border-radius: 0 4px 4px 4px;
  padding: 16px;
  overflow-x: auto;
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  line-height: 1.55;
}
.code-copy {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--hairline);
  border-radius: 4px;
  padding: 3px 10px;
  cursor: pointer;
}
.code-copy:hover { color: var(--fg); border-color: var(--muted); }

/* Live "Run" action + result pane. Run sits in the tabs-row action strip
   next to Copy, never over the code. */
.code-run {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent-fg);
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 4px;
  padding: 3px 12px;
  cursor: pointer;
}
.code-run:hover { opacity: 0.85; }
.code-run:disabled { opacity: 0.5; cursor: default; }
.section-ink .code-run {
  background: var(--accent-fg);
  color: var(--accent);
  border-color: var(--accent-fg);
}

.try-result {
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--fg);
  border-radius: 4px;
  margin-top: 10px;
  padding: 12px 16px;
  background: var(--code-bg);
}
.try-result-head {
  display: flex;
  gap: 12px;
  align-items: baseline;
  margin-bottom: 8px;
}
.try-status {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  font-weight: 600;
}
.try-status.ok { color: var(--ok); }
.try-status.err { color: var(--alert-fg); }
.try-body {
  margin: 0;
  max-height: 340px;
  overflow: auto;
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px;
  line-height: 1.55;
  white-space: pre;
}

code {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.88em;
  background: var(--code-bg);
  border: 1px solid var(--hairline);
  border-radius: 3px;
  padding: 1px 5px;
}
pre code { background: none; border: none; padding: 0; font-size: inherit; }

/* Docs layout */
.docs-layout {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 28px 80px;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  align-items: start;
}
.docs-nav {
  position: sticky;
  top: 24px;
  padding-top: 32px;
  display: grid;
  gap: 4px;
}
.docs-nav-filter {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--hairline);
  border-radius: 4px;
  padding: 6px 10px;
  margin-bottom: 10px;
}
.docs-nav-filter:focus { outline: none; border-color: var(--muted); }
.docs-nav-link {
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  padding: 4px 8px;
  border-left: 2px solid transparent;
  border-radius: 0 4px 4px 0;
}
.docs-nav-link:hover { color: var(--fg); }
.docs-nav-link.active {
  color: var(--fg);
  background: var(--code-bg);
  border-left-color: var(--fg);
}
.docs-nav-heading {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 14px 0 4px;
  padding: 0 8px;
}

.docs-content { min-width: 0; padding-top: 32px; }
.docs-content h1 {
  font-size: 30px;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
  font-weight: 700;
}
.docs-content h2 {
  font-size: 20px;
  margin: 40px 0 12px;
  font-weight: 700;
  border-top: 1px solid var(--hairline);
  padding-top: 26px;
}
.docs-content p { max-width: 46em; }
.docs-content p.lead { color: var(--muted); font-size: 16px; }
.docs-content .eyebrow { margin-bottom: 10px; }

/* Endpoint reference header: method badge + mono route */
.endpoint-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
  flex-wrap: wrap;
}
.endpoint-head h1 {
  margin: 0;
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.method-badge {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: 4px;
  border: 1.5px solid var(--fg);
}
.method-badge.post {
  background: var(--accent);
  color: var(--accent-fg);
}

/* Endpoint fact box: auth / billing / base url at a glance */
.endpoint-meta {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 6px 18px;
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--fg);
  border-radius: 4px;
  background: var(--code-bg);
  padding: 14px 18px;
  margin: 0 0 8px;
  font-size: 14px;
}
.endpoint-meta dt {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  align-self: baseline;
}
.endpoint-meta dd { margin: 0; }

/* Docs tables (params, fields) */
.docs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 16px 0;
}
.docs-table th {
  text-align: left;
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--muted);
  border-bottom: 2px solid var(--fg);
  padding: 8px 12px 8px 0;
}
.docs-table td {
  vertical-align: top;
  border-bottom: 1px solid var(--hairline);
  padding: 8px 12px 8px 0;
  color: var(--muted);
}
.docs-table td:first-child { color: var(--fg); white-space: nowrap; }

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 20px;
  margin: 32px 0;
}
.price-card {
  border: 1px solid var(--hairline);
  border-radius: 6px;
  background: var(--panel);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.price-card h3 {
  margin: 0;
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--muted);
}
.price-amount { font-size: 34px; font-weight: 700; letter-spacing: -0.02em; }
.price-amount span { font-size: 14px; font-weight: 400; color: var(--muted); letter-spacing: 0; }
.price-features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 7px;
  font-size: 14px;
  color: var(--muted);
  flex: 1;
}
.price-features li { padding-left: 14px; position: relative; }
.price-features li::before {
  content: "-";
  position: absolute;
  left: 0;
  color: var(--muted);
}

/* Featured tier: strong border + lift, same paper as the rest */
.price-card.featured {
  border: 2px solid var(--fg);
  box-shadow: var(--card-shadow);
}
.price-card.featured h3 { color: var(--fg); }

/* Dashboard */
.dash-grid { display: grid; gap: 20px; margin-top: 32px; }
.dash-head { display: flex; justify-content: space-between; align-items: baseline; }
.key-list { display: grid; gap: 10px; }
.key-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--hairline);
  border-radius: 4px;
  padding: 10px 14px;
  font-size: 14px;
  flex-wrap: wrap;
}
.key-row .muted { font-size: 13px; }
.key-name { font-weight: 600; }

/* Usage chart (inline SVG bars) */
.usage-chart { width: 100%; height: 120px; margin-top: 8px; }
.usage-bar { fill: var(--muted); opacity: 0.55; }
.usage-bar:hover { opacity: 1; }
.usage-quota-line { stroke: var(--alert-fg); stroke-width: 1; stroke-dasharray: 4 3; }

.plan-badge {
  display: inline-block;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  padding: 2px 10px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.plan-badge.paid { color: var(--ok); border-color: var(--ok); }

/* Copy-once modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}
.modal {
  background: var(--panel);
  border: 1px solid var(--hairline);
  border-radius: 6px;
  max-width: 560px;
  width: calc(100% - 48px);
  padding: 24px;
}
.modal pre {
  background: var(--code-bg);
  border: 1px solid var(--hairline);
  border-radius: 4px;
  padding: 12px;
  overflow-x: auto;
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
}

/* Single-column hero (pricing and other artifact-less pages) */
.hero.hero-single { grid-template-columns: 1fr; }

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 56px 0 48px;
  }
}

@media (max-width: 800px) {
  .docs-layout { grid-template-columns: 1fr; gap: 0; }
  .docs-nav { position: static; padding-top: 24px; }
  .section-ink { padding: 36px 24px 40px; }
}

/* No visible scrollbars anywhere. Scrolling itself is unchanged (wheel,
   trackpad, keyboard, touch); only the bars are hidden, on every element. */
* {
    scrollbar-width: none;
    -ms-overflow-style: none;
}
*::-webkit-scrollbar {
    display: none;
    width: 0;
    height: 0;
}