/* Hallmark · macrostructure: Narrative Workflow · genre: modern-minimal · theme: Cobalt
 * nav: N13 · footer: Ft2 · enrichment: code hero
 * pre-emit critique: P5 H5 E5 S5 R4 V5
 */

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  overflow-x: clip;
}

body {
  background: var(--color-paper);
  color: var(--color-ink-2);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  font-style: normal;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }

a { color: inherit; }

img, svg { display: block; max-width: 100%; }

button, input { font: inherit; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: min(1120px, calc(100% - var(--space-md) * 2));
  margin-inline: auto;
}

.section {
  padding-block: var(--space-3xl);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.eyebrow--light { color: oklch(72% 0.08 256); }

/* Buttons & links */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.btn--primary:hover {
  background: oklch(52% 0.20 256);
}

.btn--primary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.btn--lg {
  min-height: 48px;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-base);
}

.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-ink);
  text-decoration: none;
  background-image: linear-gradient(var(--color-accent), var(--color-accent));
  background-repeat: no-repeat;
  background-size: 0% 1px;
  background-position: 0 100%;
  transition: background-size var(--dur-base) var(--ease-out);
}

.text-link:hover,
.text-link:focus-visible {
  background-size: 100% 1px;
}

.text-link:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* Nav N13 */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--color-rule);
  background: oklch(98.5% 0.004 250 / 0.85);
  backdrop-filter: blur(8px);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  min-height: 56px;
  width: min(1120px, calc(100% - var(--space-md) * 2));
  margin-inline: auto;
}

.nav__brand {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  text-decoration: none;
  white-space: nowrap;
}

.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-md);
}

.nav__link {
  font-size: var(--text-sm);
  color: var(--color-ink-2);
  text-decoration: none;
  white-space: nowrap;
  background-image: linear-gradient(var(--color-accent), var(--color-accent));
  background-repeat: no-repeat;
  background-size: 0% 1px;
  background-position: 0 100%;
  transition: background-size var(--dur-base) var(--ease-out);
}

.nav__link:hover,
.nav__link:focus-visible {
  background-size: 100% 1px;
}

.nav__link:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-left: auto;
}

.searchpill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  height: 36px;
  padding: 0 var(--space-xs);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-input);
  background: var(--color-paper-2);
  color: var(--color-ink-3);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out);
}

.searchpill:hover,
.searchpill:focus-visible {
  border-color: var(--color-accent);
}

.searchpill:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.searchpill__text {
  display: none;
  font-size: var(--text-xs);
}

.searchpill__kbd {
  display: inline-flex;
  gap: 2px;
}

.searchpill kbd {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 2px 4px;
  border: 1px solid var(--color-rule);
  border-radius: 4px;
  background: var(--color-paper);
}

/* CmdK */
.cmdk {
  position: fixed;
  inset: 0;
  z-index: 700;
  opacity: 0;
  visibility: hidden;
  transition: opacity 200ms var(--ease-out), visibility 200ms;
}

.cmdk.is-open {
  opacity: 1;
  visibility: visible;
}

.cmdk__backdrop {
  position: absolute;
  inset: 0;
  background: oklch(24% 0.02 258 / 0.4);
}

.cmdk__panel {
  position: absolute;
  top: 14vh;
  left: 50%;
  width: min(560px, calc(100vw - var(--space-md) * 2));
  transform: translateX(-50%) translateY(-8px);
  background: var(--color-paper);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-card);
  box-shadow: 0 8px 32px oklch(24% 0.02 258 / 0.12);
  transition: transform var(--dur-base) var(--ease-out);
}

.cmdk.is-open .cmdk__panel {
  transform: translateX(-50%) translateY(0);
}

.cmdk__field {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm);
  border-bottom: 1px solid var(--color-rule);
}

.cmdk__field input {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  color: var(--color-ink);
  outline: none;
}

.cmdk__esc {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  padding: 2px 6px;
  border: 1px solid var(--color-rule);
  border-radius: 4px;
  color: var(--color-ink-3);
}

.cmdk__results {
  max-height: 280px;
  overflow-y: auto;
  padding: var(--space-2xs);
}

.cmdk__group {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink-3);
  padding: var(--space-2xs) var(--space-xs);
}

.cmdk__item {
  display: block;
  width: 100%;
  padding: var(--space-xs) var(--space-sm);
  border: none;
  border-radius: var(--radius-input);
  background: transparent;
  color: var(--color-ink);
  text-align: left;
  cursor: pointer;
}

.cmdk__item.is-active,
.cmdk__item:hover {
  background: var(--color-paper-2);
}

.cmdk__item:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: -2px;
}

.cmdk__foot {
  display: none;
  gap: var(--space-md);
  padding: var(--space-xs) var(--space-sm);
  border-top: 1px solid var(--color-rule);
  font-size: var(--text-xs);
  color: var(--color-ink-3);
}

.cmdk__foot kbd {
  font-family: var(--font-mono);
  padding: 1px 4px;
  border: 1px solid var(--color-rule);
  border-radius: 3px;
}

/* Hero */
.hero {
  padding-top: var(--space-2xl);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: center;
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: 600;
  font-style: normal;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--color-ink);
  overflow-wrap: anywhere;
  min-width: 0;
}

.hero__lede {
  margin-top: var(--space-md);
  max-width: 42ch;
  color: var(--color-ink-2);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

/* Code card */
.code-card {
  margin: 0;
  background: var(--color-graphite);
  border: 1px solid var(--color-rule-2);
  border-radius: var(--radius-card);
  box-shadow: 0 1px 2px oklch(24% 0.02 258 / 0.05);
  overflow: hidden;
  min-width: 0;
}

.code-card__bar {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  border-bottom: 1px solid oklch(40% 0.012 258 / 0.4);
}

.code-card__bar--light {
  background: var(--color-paper-2);
  border-bottom-color: var(--color-rule);
}

.code-card__dots {
  display: inline-flex;
  gap: 4px;
}

.code-card__dots i {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: oklch(52% 0.012 256);
}

.code-card__filename {
  flex: 1;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: oklch(72% 0.02 256);
}

.code-card__bar--light .code-card__filename {
  color: var(--color-ink-3);
}

.status-chip {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 2px 6px;
  border-radius: 4px;
}

.status-chip--ok {
  color: var(--color-accent);
  border: 1px solid oklch(58% 0.20 256 / 0.4);
}

.code-card__body {
  margin: 0;
  padding: var(--space-md);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: oklch(82% 0.02 256);
}

.code-card__body code { white-space: pre; }

.tok-muted { color: oklch(58% 0.02 256); }
.tok-cmd { color: oklch(88% 0.02 256); }
.tok-arg { color: oklch(72% 0.04 256); }
.tok-str { color: oklch(78% 0.06 200); }
.tok-key { color: var(--color-accent); }

/* Problem */
.problem {
  border-top: 1px solid var(--color-rule);
  padding-block: var(--space-2xl);
}

.problem__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-lg);
}

.problem__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 600;
  font-style: normal;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  overflow-wrap: anywhere;
  min-width: 0;
}

.problem__list {
  padding-left: 1.1em;
  color: var(--color-ink-2);
}

.problem__list li + li {
  margin-top: var(--space-xs);
}

/* Workflow stages */
.section-head {
  margin-bottom: var(--space-2xl);
}

.section-head__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 600;
  font-style: normal;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

.stage + .stage {
  margin-top: var(--space-2xl);
}

.stage__rule {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  border-top: 2px solid var(--color-ink);
  padding-top: var(--space-sm);
}

.stage__num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-ink);
}

.stage__head {
  margin-bottom: var(--space-md);
}

.stage__label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  margin-bottom: var(--space-2xs);
}

.stage__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  font-style: normal;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

.stage__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-lg);
}

.stage__body {
  max-width: 52ch;
}

.stage__visual {
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-card);
  background: var(--color-paper-2);
  padding: var(--space-md);
  min-width: 0;
}

.flow-visual {
  color: var(--color-ink-3);
}

.split-visual {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--color-rule);
  padding: 0;
  overflow: hidden;
}

.split-visual__pane {
  background: var(--color-paper);
  padding: var(--space-sm);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}

.split-visual__tag {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2xs);
}

.log-visual pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.7;
  overflow-x: auto;
}

.changelog-visual ul {
  list-style: none;
  padding: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}

.changelog-visual li {
  display: flex;
  gap: var(--space-xs);
  padding-block: var(--space-2xs);
  border-bottom: 1px solid var(--color-rule);
}

.changelog-visual li:last-child { border-bottom: none; }

.changelog-visual__hash {
  color: var(--color-accent);
  flex-shrink: 0;
}

.workflow__cta {
  margin-top: var(--space-2xl);
  text-align: left;
}

/* Quickstart dark band */
.quickstart {
  background: var(--color-graphite-2);
  color: oklch(88% 0.02 256);
  padding-block: var(--space-3xl);
}

.quickstart__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 600;
  font-style: normal;
  letter-spacing: -0.02em;
  color: oklch(96% 0.01 256);
  margin-bottom: var(--space-xl);
}

.quickstart__steps {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-md);
}

.quickstart__steps li {
  display: grid;
  gap: var(--space-2xs);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid oklch(40% 0.012 258 / 0.5);
}

.quickstart__steps li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.quickstart__cmd {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
}

.quickstart__desc {
  font-size: var(--text-sm);
  color: oklch(72% 0.02 256);
}

/* Capabilities */
.capabilities__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: start;
}

.capabilities__code {
  margin: 0;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-card);
  overflow: hidden;
  min-width: 0;
}

.capabilities__snippet {
  margin: 0;
  padding: var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.7;
  background: var(--color-paper-2);
  overflow-x: auto;
}

.capabilities__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  font-style: normal;
  color: var(--color-ink);
  margin-bottom: var(--space-md);
}

.capabilities__list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-md);
}

.capabilities__list li {
  display: grid;
  gap: var(--space-3xs);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-rule);
}

.capabilities__list li:last-child {
  border-bottom: none;
}

.capabilities__list strong {
  font-weight: 600;
  color: var(--color-ink);
}

.capabilities__list span {
  font-size: var(--text-sm);
  color: var(--color-ink-2);
}

/* Personas */
.personas .section-head__title {
  margin-bottom: var(--space-xl);
}

.personas__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-sm);
}

.persona {
  padding: var(--space-md);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-card);
  background: var(--color-paper);
  min-width: 0;
}

.persona__role {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  font-style: normal;
  color: var(--color-ink);
  margin-bottom: var(--space-2xs);
}

.persona p {
  font-size: var(--text-sm);
  color: var(--color-ink-2);
}

/* FAQ */
.faq .section-head__title {
  margin-bottom: var(--space-xl);
}

.faq__list {
  display: grid;
  gap: var(--space-xs);
}

.faq__item {
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-card);
  background: var(--color-paper);
  overflow: hidden;
}

.faq__item summary {
  padding: var(--space-sm) var(--space-md);
  font-weight: 500;
  color: var(--color-ink);
  cursor: pointer;
  list-style: none;
}

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

.faq__item summary::after {
  content: "+";
  float: right;
  font-family: var(--font-mono);
  color: var(--color-ink-3);
}

.faq__item[open] summary::after { content: "−"; }

.faq__item summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: -2px;
}

.faq__item p {
  padding: 0 var(--space-md) var(--space-md);
  font-size: var(--text-sm);
  color: var(--color-ink-2);
  border-top: 1px solid var(--color-rule);
  padding-top: var(--space-sm);
}

/* CTA */
.cta {
  border-top: 1px solid var(--color-rule);
}

.cta__inner {
  text-align: left;
}

.cta__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 600;
  font-style: normal;
  color: var(--color-ink);
  margin-bottom: var(--space-sm);
}

.cta__lede {
  max-width: 42ch;
  margin-bottom: var(--space-lg);
  color: var(--color-ink-2);
}

/* Footer Ft2 */
.footer {
  border-top: 1px solid var(--color-rule);
  padding-block: var(--space-lg);
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-xs) var(--space-md);
  font-size: var(--text-sm);
  color: var(--color-ink-3);
}

.footer__brand {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-ink);
}

.footer__tagline::before {
  content: "·";
  margin-right: var(--space-xs);
}

.footer__links {
  display: flex;
  gap: var(--space-md);
  margin-left: auto;
}

.footer__links a {
  color: var(--color-ink-3);
  text-decoration: none;
  white-space: nowrap;
}

.footer__links a:hover,
.footer__links a:focus-visible {
  color: var(--color-accent);
}

.footer__links a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* Reveal — visible by default; animate only when JS is active */
.reveal {
  opacity: 1;
  transform: none;
}

html.js .reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--dur-reveal) var(--ease-out),
              transform var(--dur-reveal) var(--ease-out);
}

html.js .reveal.is-in {
  opacity: 1;
  transform: none;
}

/* Responsive */
@media (min-width: 768px) {
  .nav__links { display: flex; }
  .searchpill__text { display: inline; }
  .cmdk__foot { display: flex; }

  .hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: var(--space-2xl);
  }

  .problem__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: start;
  }

  .stage__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .split-visual {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .capabilities__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

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

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: opacity 150ms var(--ease-out);
  }

  .cmdk__panel,
  .text-link,
  .nav__link,
  .btn {
    transition: none;
  }
}