/* Kikita Labs landing. Tokens live in tokens.css; no raw colour values here. */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-8);
  overflow-x: clip;
}

body {
  margin: 0;
  overflow-x: clip;
  background: var(--color-paper);
  color: var(--color-ink);
  font: 400 var(--text-md)/1.6 var(--font-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

[hidden] { display: none !important; }

h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
button { font: inherit; color: inherit; }
a { color: inherit; }

.wrap {
  width: 100%;
  max-width: var(--page);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.skip {
  position: absolute;
  left: var(--space-4);
  top: -4rem;
  z-index: 20;
  padding: var(--space-2) var(--space-4);
  background: var(--color-ink);
  color: var(--color-paper);
  border-radius: var(--radius-sm);
  text-decoration: none;
}
.skip:focus { top: var(--space-4); }

/* ---------- header ---------- */
.site-head { padding-block: var(--space-5); }
.site-head__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  white-space: nowrap;
}
.brand__mark { width: 28px; height: 28px; flex: none; }
.brand__name {
  font: 600 1.125rem/1 var(--font-display);
  letter-spacing: -0.01em;
}
.head-link {
  padding: var(--space-2) var(--space-3);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--color-muted);
  text-decoration: none;
  font-size: var(--text-sm);
  white-space: nowrap;
}
.head-link:hover { color: var(--color-ink); }

.head-actions { display: flex; align-items: center; gap: var(--space-2); }
.theme-toggle {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--color-muted);
  cursor: pointer;
  transition: color var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out);
}
.theme-toggle:hover { color: var(--color-ink); background: var(--color-line); }

/* ---------- hero ---------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-7);
  align-items: center;
  padding-block: var(--space-7) var(--space-8);
}
@media (min-width: 62rem) {
  .hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: var(--space-8);
    min-height: min(46rem, calc(100svh - 6rem));
    padding-block: var(--space-6) var(--space-9);
  }
}

.hero__copy { min-width: 0; }

.status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-muted);
}
.status__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
}

.hero__title {
  font: 700 var(--text-display)/0.96 var(--font-display);
  letter-spacing: -0.04em;
  text-wrap: balance;
  overflow-wrap: anywhere;
  min-width: 0;
  max-width: 11ch;
}
.hero__lead {
  margin-top: var(--space-5);
  max-width: 38rem;
  font-size: var(--text-lg);
  line-height: 1.5;
  color: var(--color-muted);
}

.cta {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  margin-top: var(--space-6);
  padding: 0 var(--space-6);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.cta:hover { transform: translateY(-2px); box-shadow: 0 10px 28px -12px var(--color-accent); }
.cta:active { transform: translateY(0) scale(0.98); transition-duration: var(--dur-fast); }

/* one orchestrated load sequence */
.js .hero-in {
  opacity: 0;
  transform: translateY(18px);
  animation: rise var(--dur-slow) var(--ease-out) forwards;
}
.js .hero-in:nth-child(1) { animation-delay: 60ms; }
.js .hero-in:nth-child(2) { animation-delay: 160ms; }
.js .hero-in:nth-child(3) { animation-delay: 260ms; }
.js .hero-in:nth-child(4) { animation-delay: 360ms; }
.js .demo.hero-in { animation-delay: 300ms; }
@keyframes rise { to { opacity: 1; transform: none; } }

/* ---------- demo ---------- */
.demo {
  min-width: 0;
  border: var(--rule);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  overflow: hidden;
}
.demo__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: var(--rule);
}
.tabs {
  display: inline-flex;
  padding: 3px;
  border: var(--rule);
  border-radius: var(--radius-pill);
}
.tab {
  min-height: 36px;
  padding: 0 var(--space-4);
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out);
}
.tab:hover { color: var(--color-ink); }
.tab[aria-selected="true"] { background: var(--color-ink); color: var(--color-paper); }
.replay {
  min-height: 36px;
  padding: 0 var(--space-3);
  border: 0;
  background: transparent;
  color: var(--color-muted);
  font-size: var(--text-sm);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  white-space: nowrap;
}
.replay:hover { color: var(--color-ink); }

.demo__stage {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-5);
  min-height: 25rem;
  align-content: start;
}
.channel { font-size: var(--text-xs); color: var(--color-muted); }

/* with JS, keep the conversation hidden (layout stays) until the animation starts, so the final text never flashes */
.js .demo__stage:not(.is-live) .bubble { visibility: hidden; }

.bubble { min-width: 0; }
.bubble__label {
  margin-bottom: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-muted);
}
.bubble--q .q-text {
  display: inline-block;
  max-width: 100%;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md) var(--radius-md) var(--radius-sm) var(--radius-md);
  background: var(--color-ink);
  color: var(--color-paper);
  font-size: var(--text-sm);
  line-height: 1.45;
  min-height: 2.9rem;
}
.bubble--a {
  padding-top: var(--space-2);
  border-top: var(--rule);
}
.a-head { margin-top: var(--space-3); font-size: var(--text-sm); font-weight: 600; }
.a-head:first-child { margin-top: 0; }
.a-list { margin-top: var(--space-2); display: grid; gap: var(--space-2); }
.a-list li {
  position: relative;
  padding-left: var(--space-4);
  font-size: var(--text-sm);
  line-height: 1.5;
}
.a-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 1px;
  background: var(--color-muted);
}

/* the one memorable thing: a source marker on every claim */
.src {
  display: inline-block;
  padding: 0 0.4em;
  margin-left: 0.2em;
  border-radius: 4px;
  background: var(--color-mark);
  color: var(--color-ink);
  font: 500 0.75rem/1.55 var(--font-mono);
  white-space: nowrap;
  vertical-align: 0.05em;
}

.a-voice { display: grid; gap: var(--space-3); }
.wave {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 44px;
}
.wave i {
  flex: 1 1 0;
  max-width: 6px;
  height: 100%;
  border-radius: 3px;
  background: var(--color-accent);
  transform: scaleY(0.12);
  transform-origin: center;
}
.wave.is-speaking i { animation: speak 900ms var(--ease-in-out) infinite alternate; }
@keyframes speak { from { transform: scaleY(0.18); } to { transform: scaleY(var(--h, 0.8)); } }
.caption { font-size: var(--text-sm); line-height: 1.55; }
.caption .w { opacity: 1; transition: opacity var(--dur-base) var(--ease-out); }
.caption .w.is-pending { opacity: 0.18; }
.a-sources { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.a-sources .src { margin-left: 0; }

.js [data-reveal].is-pending { opacity: 0; transform: translateY(6px); }
[data-reveal] { transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out); }

.demo__note {
  padding: var(--space-3) var(--space-5);
  border-top: var(--rule);
  font-size: var(--text-xs);
  color: var(--color-muted);
}

/* ---------- section titles ---------- */
.section-title {
  font: 650 var(--text-2xl)/1.02 var(--font-display);
  letter-spacing: -0.03em;
  text-wrap: balance;
  overflow-wrap: anywhere;
  min-width: 0;
  max-width: 16ch;
}

/* ---------- how it works ---------- */
.how {
  padding-block: var(--space-8);
  border-block: var(--rule);
  background: var(--color-surface);
}
.how__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}
.how__stage {
  position: sticky;
  top: 0;
  z-index: 2;
  display: grid;
  gap: var(--space-4);
  padding-block: var(--space-4);
  background: var(--color-surface);
  align-content: start;
}
.how__stage .section-title { font-size: var(--text-xl); max-width: 22ch; }
.diagram { width: 100%; height: auto; max-height: 34svh; }

@media (min-width: 62rem) {
  .how__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
    gap: var(--space-8);
    align-items: start;
  }
  .how__stage {
    top: var(--space-7);
    padding-block: 0;
    gap: var(--space-6);
  }
  .how__stage .section-title { font-size: var(--text-2xl); max-width: 14ch; }
  .diagram { max-height: calc(100svh - 17rem); min-height: 17rem; }
}

.steps { counter-reset: step; display: grid; }
.step {
  counter-increment: step;
  position: relative;
  min-height: 46svh;
  display: grid;
  align-content: center;
  gap: var(--space-2);
  padding: var(--space-5) 0 var(--space-5) var(--space-7);
  border-left: var(--rule);
  color: var(--color-muted);
  transition: color var(--dur-base) var(--ease-out);
}
.step::before {
  content: counter(step);
  position: absolute;
  left: -15px;
  top: 50%;
  translate: 0 -50%;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: var(--rule);
  border-radius: 50%;
  background: var(--color-surface);
  font: 600 var(--text-sm)/1 var(--font-display);
  transition: background var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
.step__title {
  font: 650 var(--text-xl)/1.1 var(--font-display);
  letter-spacing: -0.02em;
}
.step p { max-width: 34ch; }
.step.is-active { color: var(--color-ink); }
.step.is-active::before {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-on-accent);
}
@media (max-width: 61.99rem) {
  .step { min-height: 34svh; padding-left: var(--space-6); }
  .how__stage {
    margin-inline: calc(var(--gutter) * -1);
    padding-inline: var(--gutter);
    padding-bottom: var(--space-3);
    border-bottom: var(--rule);
  }
  .how__stage .section-title { font-size: var(--text-lg); max-width: none; }
  .diagram { max-height: 34svh; }
  .diagram__caption { display: none; }
}

/* diagram states */
.d-node rect, .d-hub rect, .d-ask rect {
  fill: var(--color-paper);
  stroke: var(--color-line);
  stroke-width: 1.2;
}
.d-hub rect { stroke: var(--color-ink); stroke-width: 1.6; }
.d-hub, .d-ask { color: var(--color-ink); }
.d-node text, .d-hub text, .d-ask text {
  fill: var(--color-ink);
  font-family: var(--font-body);
  dominant-baseline: auto;
  text-anchor: middle;
}
.d-link {
  stroke: var(--color-line);
  stroke-width: 1.5;
}
.d-link--team, .d-link--ask { stroke: var(--color-muted); stroke-dasharray: 3 5; }
.d-node text { font-size: 15px; }
.d-hub text { font-size: 14px; font-weight: 600; }
.d-col-title {
  fill: var(--color-muted);
  font: 600 13px var(--font-body);
  text-anchor: middle;
}
.d-person circle { fill: var(--color-ink); }
.d-name {
  fill: var(--color-ink);
  font: 600 16px var(--font-body);
  text-anchor: start;
}
.d-chip rect { fill: var(--color-mark); }
.d-chip text {
  fill: var(--color-ink);
  font: 500 12px var(--font-mono);
  text-anchor: middle;
}
.d-ask rect { fill: var(--color-accent); stroke: var(--color-accent); }
.d-ask text { fill: var(--color-on-accent); font-size: 14px; }
.d-ask text.d-ask-note { fill: var(--color-muted); font-size: 12.5px; text-anchor: middle; }

.diagram__caption {
  min-height: 3.2em;
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-muted);
}

.js .diagram [data-at] {
  opacity: 0;
  transition: opacity var(--dur-slow) var(--ease-out);
}
.js .diagram [data-at].is-on { opacity: 1; }
.js .diagram .d-link[data-at].is-on { stroke: var(--color-accent); }
.js .diagram .d-link--team[data-at].is-on { stroke: var(--color-muted); }

/* ---------- trust ---------- */
.trust { padding-block: var(--space-9); }
.rules {
  margin-top: var(--space-7);
  display: grid;
  border-top: var(--rule);
}
.rule {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  padding-block: var(--space-5);
  border-bottom: var(--rule);
}
.rule dt {
  font: 650 var(--text-xl)/1.1 var(--font-display);
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}
.rule dd { color: var(--color-muted); max-width: 46ch; }
@media (min-width: 52rem) {
  .rule { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-7); align-items: baseline; }
}

/* ---------- tools ---------- */
.tools { padding-block: 0 var(--space-9); }
.tools__run {
  margin-top: var(--space-6);
  max-width: 28ch;
  font: 500 var(--text-xl)/1.25 var(--font-display);
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}
.tools__note { margin-top: var(--space-4); font-size: var(--text-sm); color: var(--color-muted); }

/* ---------- footer ---------- */
.site-foot {
  padding-block: var(--space-9) var(--space-7);
  border-top: var(--rule);
  background: var(--color-ink);
  color: var(--color-paper);
}
.foot__lead { font-size: var(--text-lg); opacity: 0.75; }
.foot__mail {
  display: inline-block;
  margin-top: var(--space-3);
  max-width: 100%;
  font: 700 clamp(1.5rem, 0.6rem + 5.2vw, 4.75rem)/1.05 var(--font-display);
  letter-spacing: -0.035em;
  overflow-wrap: anywhere;
  text-decoration: none;
  border-bottom: 2px solid var(--color-mark);
}
.foot__mail:hover { border-bottom-color: var(--color-paper); }
.foot__small {
  margin-top: var(--space-8);
  font-size: var(--text-xs);
  opacity: 0.65;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
}
.site-foot :focus-visible { outline-color: var(--color-mark); }

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .hero-in { opacity: 1; transform: none; animation: none; }
  .cta, .tab, .theme-toggle, .step, .step::before, [data-reveal], .caption .w, .js .diagram [data-at] { transition: none; }
  .wave.is-speaking i { animation: none; transform: scaleY(0.5); }
  .cta:hover { transform: none; box-shadow: none; }
}