:root {
  --white: #f8fbff;
  --paper: #ffffff;
  --ink: #071a36;
  --ink-soft: #36506f;
  --blue: #175dca;
  --blue-dark: #062b77;
  --cyan: #18b7ff;
  --mint: #2de0a5;
  --amber: #f5b642;
  --line: rgba(23, 93, 202, 0.16);
  --shadow: rgba(7, 26, 54, 0.14);
  --radius: 5px;
  --max: 1400px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(216, 236, 255, 0.42), rgba(255, 255, 255, 0) 22rem),
    var(--paper);
  color: var(--ink);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(23, 93, 202, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 93, 202, 0.06) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, black, transparent 72%);
}

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

section,
footer {
  scroll-margin-top: 110px;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 18px 18px 32px;
  background: linear-gradient(180deg, rgba(248, 251, 255, 0.94) 0%, rgba(248, 251, 255, 0.82) 68%, rgba(248, 251, 255, 0) 100%);
  backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100%, var(--max));
  margin: 0 auto;
  gap: 20px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  color: var(--blue-dark);
  text-transform: uppercase;
}

.brand-icon {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  color: var(--blue);
}

.brand-icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.brand-icon svg path:last-child {
  fill: none;
  stroke: var(--white);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.4;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--blue-dark);
  font-weight: 800;
}

.main-nav a {
  position: relative;
  padding: 8px 0;
}

.main-nav a::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  content: "";
  background: var(--mint);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.main-nav a:hover::after {
  transform: scaleX(1);
}

.pill-link {
  min-width: 74px;
  padding: 8px 18px !important;
  border: 2px solid var(--blue);
  border-radius: 999px;
  text-align: center;
  box-shadow: 0 10px 26px rgba(23, 93, 202, 0.15);
}

.pill-link:hover {
  background: var(--blue);
  color: var(--white);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 0;
  background: transparent;
}

.nav-toggle span {
  display: block;
  width: 28px;
  height: 3px;
  margin: 5px auto;
  background: var(--blue-dark);
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.hero-section {
  padding: 0 18px 80px;
}

.hero-shell {
  width: min(100%, var(--max));
  margin: 0 auto;
}

.mega-title {
  margin: 8px 0 12px;
  color: var(--blue-dark);
  font-family: Impact, Haettenschweiler, "Arial Black", sans-serif;
  font-size: 14rem;
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: 0;
  text-align: center;
  text-transform: uppercase;
}

.hero-image-wrap {
  overflow: hidden;
  height: 50dvh;
  min-height: 430px;
  border-radius: var(--radius);
  background: var(--white);
}

.hero-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.intro-section {
  width: min(100% - 36px, 880px);
  margin: 0 auto 120px;
  text-align: center;
}

.ca-strip {
  display: inline-grid;
  grid-template-columns: auto minmax(120px, auto) auto;
  align-items: center;
  max-width: 100%;
  margin: 0 auto 28px;
  overflow: hidden;
  border: 1px solid rgba(23, 93, 202, 0.22);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 16px 44px rgba(7, 26, 54, 0.08);
}

.ca-strip span,
.ca-strip code,
.ca-strip button {
  min-height: 42px;
  padding: 10px 16px;
}

.ca-strip span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid rgba(23, 93, 202, 0.18);
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 950;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ca-strip code {
  display: inline-flex;
  align-items: center;
  min-width: 220px;
  color: var(--blue-dark);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.98rem;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.ca-strip button {
  cursor: pointer;
  border: 0;
  border-left: 1px solid rgba(23, 93, 202, 0.18);
  background: transparent;
  color: var(--blue-dark);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 950;
  text-transform: uppercase;
}

.ca-strip button:hover {
  background: var(--blue);
  color: var(--white);
}

.intro-kicker,
.section-label {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.intro-section h2,
.pitch-copy h2,
.brief-copy h2,
.chat-copy h2,
.board-heading h2,
.stack-intro h2 {
  margin: 0;
  font-size: 2.6rem;
  line-height: 1.06;
  letter-spacing: 0;
}

.text-pitch-section {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
  gap: 48px;
  align-items: center;
  width: min(100% - 36px, 1200px);
  margin: 0 auto 120px;
}

.pitch-media {
  position: relative;
}

.pitch-media img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: 0 28px 70px rgba(6, 43, 119, 0.24);
}

.poster-caption {
  position: absolute;
  right: 22px;
  bottom: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--white);
  text-transform: uppercase;
}

.poster-caption span {
  padding: 8px 12px;
  border: 1px solid rgba(248, 251, 255, 0.48);
  border-radius: 999px;
  background: rgba(7, 26, 54, 0.42);
  font-size: 0.74rem;
  font-weight: 900;
}

.poster-caption strong {
  font-size: 1.8rem;
  line-height: 1;
}

.pitch-copy > p:not(.section-label) {
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.7;
}

.pitch-points {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.pitch-points article,
.stack-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 18px 48px rgba(7, 26, 54, 0.08);
}

.pitch-points article {
  display: grid;
  grid-template-columns: 50px 1fr;
  gap: 0 16px;
  padding: 18px;
}

.pitch-points span {
  grid-row: span 2;
  color: var(--mint);
  font-weight: 950;
}

.pitch-points h3,
.stack-card h3,
.feature-copy h2 {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.15;
}

.pitch-points p,
.stack-card p,
.feature-copy p,
.brief-list dd,
.chat-copy p,
.board-card p {
  margin: 8px 0 0;
  color: var(--ink-soft);
  line-height: 1.65;
}

.feature-section {
  display: grid;
  gap: 84px;
  width: min(100% - 36px, 960px);
  margin: 0 auto 130px;
}

.feature-row {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
  align-items: center;
}

.feature-row-reverse {
  grid-template-columns: 1fr 280px;
}

.feature-row-reverse .feature-visual {
  order: 2;
}

.feature-visual {
  position: relative;
  display: grid;
  width: 100%;
  aspect-ratio: 1;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 30% 20%, rgba(45, 224, 165, 0.32), transparent 30%),
    radial-gradient(circle at 76% 70%, rgba(245, 182, 66, 0.22), transparent 28%),
    linear-gradient(135deg, #eef7ff, #ffffff 52%, #d9ecff);
}

.feature-visual::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image:
    linear-gradient(rgba(23, 93, 202, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 93, 202, 0.1) 1px, transparent 1px);
  background-size: 22px 22px;
}

.feature-visual span {
  position: relative;
  width: 118px;
  height: 118px;
  border: 3px solid var(--blue);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.72);
  box-shadow:
    0 0 0 18px rgba(23, 93, 202, 0.08),
    0 0 42px rgba(24, 183, 255, 0.34);
}

.feature-visual span::before,
.feature-visual span::after {
  position: absolute;
  content: "";
}

.visual-chat span::before {
  inset: 29px 22px;
  border: 3px solid var(--blue-dark);
  border-radius: 18px;
}

.visual-chat span::after {
  right: 27px;
  bottom: 27px;
  width: 18px;
  height: 18px;
  border-right: 3px solid var(--blue-dark);
  border-bottom: 3px solid var(--blue-dark);
  transform: rotate(35deg);
}

.visual-agent span::before {
  top: 30px;
  left: 27px;
  width: 64px;
  height: 50px;
  border: 3px solid var(--blue-dark);
  border-radius: 16px;
}

.visual-agent span::after {
  top: 22px;
  left: 55px;
  width: 3px;
  height: 22px;
  background: var(--mint);
  box-shadow: -26px 44px 0 var(--blue), 26px 44px 0 var(--amber);
}

.visual-network span::before {
  inset: 25px;
  border: 3px dotted var(--blue-dark);
  border-radius: 50%;
}

.visual-network span::after {
  top: 56px;
  left: 18px;
  width: 82px;
  height: 3px;
  background: var(--blue);
  box-shadow: 18px -28px 0 var(--mint), 18px 28px 0 var(--amber), 42px 0 0 var(--cyan);
}

.visual-models span::before {
  top: 28px;
  left: 31px;
  width: 56px;
  height: 56px;
  border: 3px solid var(--blue-dark);
  transform: rotate(45deg);
}

.visual-models span::after {
  top: 54px;
  left: 22px;
  width: 74px;
  height: 3px;
  background: var(--mint);
  box-shadow: 0 -18px 0 var(--blue), 0 18px 0 var(--amber);
}

.visual-data span::before {
  top: 28px;
  left: 28px;
  width: 62px;
  height: 62px;
  border: 3px solid var(--blue-dark);
  border-radius: 8px;
}

.visual-data span::after {
  top: 44px;
  left: 43px;
  width: 32px;
  height: 32px;
  border-top: 3px solid var(--mint);
  border-right: 3px solid var(--amber);
  transform: rotate(45deg);
}

.feature-copy {
  max-width: 560px;
}

.feature-copy h2 {
  font-size: 2.3rem;
  text-transform: uppercase;
}

.action-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
  color: var(--blue);
  font-weight: 900;
  text-transform: uppercase;
}

.action-link::after {
  content: "->";
  color: var(--mint);
}

.brief-section {
  display: grid;
  grid-template-columns: minmax(320px, 0.85fr) minmax(0, 1.15fr);
  gap: 52px;
  align-items: center;
  width: min(100% - 36px, 1180px);
  margin: 0 auto 110px;
}

.brief-copy > p:not(.section-label),
.chat-copy > p:not(.section-label) {
  max-width: 62ch;
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.7;
}

.brief-list {
  display: grid;
  gap: 0;
  margin: 30px 0 0;
  border-top: 1px solid var(--line);
}

.brief-list div {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.brief-list dt {
  color: var(--blue-dark);
  font-weight: 950;
  text-transform: uppercase;
}

.brief-list dd {
  margin: 0;
}

.brief-media {
  margin: 0;
}

.brief-media img {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 24px 70px rgba(7, 26, 54, 0.1);
}

.chat-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(360px, 1fr);
  gap: 46px;
  align-items: center;
  width: min(100% - 36px, 1080px);
  margin: 0 auto 112px;
  padding: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(245, 182, 66, 0.08), transparent 38%),
    rgba(255, 255, 255, 0.82);
  box-shadow: 0 22px 64px rgba(7, 26, 54, 0.08);
}

.chat-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.chat-prompts button,
.chat-form button {
  cursor: pointer;
  border: 1px solid var(--blue);
  border-radius: 999px;
  background: var(--paper);
  color: var(--blue-dark);
  font: inherit;
  font-weight: 900;
}

.chat-prompts button {
  padding: 10px 14px;
}

.chat-prompts button:hover,
.chat-form button:hover {
  background: var(--blue);
  color: var(--white);
}

.chat-card {
  overflow: hidden;
  border: 1px solid rgba(6, 43, 119, 0.18);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 20px 54px rgba(7, 26, 54, 0.12);
}

.chat-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  color: var(--blue-dark);
  font-size: 0.9rem;
}

.chat-card-header div {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.chat-card-header > span {
  padding: 5px 9px;
  border-radius: 999px;
  background: rgba(45, 224, 165, 0.14);
  color: #0e7f61;
  font-weight: 950;
  text-transform: uppercase;
}

.chat-status {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 5px rgba(45, 224, 165, 0.12);
}

.chat-log {
  display: grid;
  align-content: start;
  gap: 12px;
  min-height: 290px;
  max-height: 380px;
  padding: 18px;
  overflow-y: auto;
  background:
    linear-gradient(rgba(23, 93, 202, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 93, 202, 0.045) 1px, transparent 1px),
    #fbfdff;
  background-size: 28px 28px;
}

.bot-message,
.user-message {
  width: fit-content;
  max-width: min(88%, 560px);
  padding: 12px 14px;
  border-radius: 16px;
}

.bot-message {
  border-bottom-left-radius: 4px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 10px 26px rgba(7, 26, 54, 0.08);
}

.user-message {
  justify-self: end;
  border-bottom-right-radius: 4px;
  background: var(--blue);
  color: var(--white);
}

.bot-message p,
.user-message p {
  margin: 0;
  line-height: 1.5;
}

.typing-message {
  color: var(--ink-soft);
}

.chat-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  padding: 14px;
  border-top: 1px solid var(--line);
  background: var(--paper);
}

.chat-form input {
  min-width: 0;
  padding: 12px 14px;
  border: 1px solid rgba(6, 43, 119, 0.18);
  border-radius: 999px;
  color: var(--ink);
  font: inherit;
}

.chat-form input:focus {
  border-color: var(--blue);
  outline: 3px solid rgba(23, 93, 202, 0.13);
}

.chat-form button {
  padding: 0 18px;
}

.product-board {
  width: min(100% - 36px, 1080px);
  margin: 0 auto 122px;
}

.board-heading {
  display: grid;
  gap: 12px;
  max-width: 760px;
  margin-bottom: 28px;
}

.board-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.84);
}

.board-card {
  min-height: 300px;
  padding: 26px;
  border-right: 1px solid var(--line);
}

.board-card:last-child {
  border-right: 0;
}

.board-card span {
  display: inline-flex;
  margin-bottom: 56px;
  color: var(--blue);
  font-weight: 950;
}

.board-card h3 {
  margin: 0;
  color: var(--blue-dark);
  font-size: 1.65rem;
  line-height: 1.1;
  text-transform: uppercase;
}

.board-card .action-link {
  margin-top: 28px;
}

.stack-section {
  padding: 86px 18px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(245, 248, 252, 0.8), rgba(255, 255, 255, 0.98));
  color: var(--ink);
}

.stack-intro {
  width: min(100%, 860px);
  margin: 0 auto 36px;
  text-align: center;
}

.stack-intro .section-label {
  color: var(--blue);
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  width: min(100%, 1160px);
  margin: 0 auto;
}

.stack-card {
  min-height: 236px;
  padding: 24px;
  background: var(--paper);
  border-color: var(--line);
  box-shadow: none;
}

.stack-card span {
  display: inline-flex;
  margin-bottom: 30px;
  color: var(--amber);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stack-card p {
  color: var(--ink-soft);
}

.site-footer {
  display: grid;
  gap: 24px;
  justify-items: center;
  padding: 56px 18px;
  color: var(--blue-dark);
  text-align: center;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 1.1rem;
  text-transform: uppercase;
}

.footer-mark {
  width: 28px;
  height: 28px;
  border-radius: 50% 50% 44% 44%;
  background:
    radial-gradient(circle at 50% 32%, var(--white) 0 13%, transparent 14%),
    var(--blue);
  box-shadow: -14px -5px 0 -8px var(--blue), 14px -5px 0 -8px var(--blue);
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px 28px;
  font-weight: 800;
}

.site-footer p {
  margin: 0;
  color: var(--ink-soft);
}

.main-nav a.is-active::after {
  transform: scaleX(1);
}

.docs-page {
  padding: 0 18px 80px;
}

.docs-hero {
  width: min(100%, 980px);
  margin: 42px auto 64px;
  text-align: center;
}

.docs-hero h1 {
  margin: 0;
  color: var(--blue-dark);
  font-family: Impact, Haettenschweiler, "Arial Black", sans-serif;
  font-size: clamp(4rem, 14vw, 11rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: 0;
  text-transform: uppercase;
}

.docs-hero p:not(.section-label) {
  max-width: 760px;
  margin: 22px auto 0;
  color: var(--ink-soft);
  font-size: 1.08rem;
  line-height: 1.7;
}

.docs-layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 48px;
  width: min(100%, 1160px);
  margin: 0 auto;
  align-items: start;
  min-width: 0;
}

.docs-index {
  position: sticky;
  top: 112px;
  display: grid;
  gap: 2px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 18px 50px rgba(7, 26, 54, 0.07);
}

.docs-index a {
  padding: 11px 12px;
  border-radius: var(--radius);
  color: var(--blue-dark);
  font-size: 0.9rem;
  font-weight: 900;
  min-width: 0;
  overflow-wrap: anywhere;
}

.docs-index a:hover {
  background: rgba(23, 93, 202, 0.08);
}

.docs-content {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.doc-section {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 50px rgba(7, 26, 54, 0.06);
  min-width: 0;
}

.doc-section h2 {
  margin: 0 0 16px;
  color: var(--blue-dark);
  font-size: 2rem;
  line-height: 1.12;
}

.doc-section h3 {
  margin: 0;
  color: var(--blue-dark);
  font-size: 1.16rem;
  line-height: 1.2;
}

.doc-section p,
.doc-list {
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.72;
  min-width: 0;
  overflow-wrap: anywhere;
}

.doc-section p {
  margin: 0 0 18px;
}

.doc-section p:last-child {
  margin-bottom: 0;
}

.doc-section code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.doc-section p code,
.doc-list code {
  padding: 2px 6px;
  border: 1px solid rgba(23, 93, 202, 0.18);
  border-radius: 4px;
  background: rgba(23, 93, 202, 0.06);
  color: var(--blue-dark);
}

.doc-section pre {
  overflow-x: auto;
  max-width: 100%;
  margin: 18px 0;
  padding: 18px;
  border: 1px solid rgba(6, 43, 119, 0.18);
  border-radius: var(--radius);
  background: #071a36;
  color: #f8fbff;
  line-height: 1.6;
}

.doc-section pre code {
  white-space: pre;
}

.doc-table {
  display: grid;
  margin-top: 18px;
  border-top: 1px solid var(--line);
}

.doc-table div {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.doc-table strong {
  color: var(--blue-dark);
  text-transform: uppercase;
}

.doc-table span {
  color: var(--ink-soft);
  min-width: 0;
  overflow-wrap: anywhere;
}

.doc-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding-left: 22px;
}

.doc-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.doc-steps article {
  min-height: 210px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(248, 251, 255, 0.92), rgba(255, 255, 255, 0.98));
}

.doc-steps span {
  display: inline-flex;
  margin-bottom: 42px;
  color: var(--amber);
  font-weight: 950;
}

.doc-steps p {
  margin-top: 10px;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1050px) {
  .mega-title {
    font-size: 8.5rem;
  }

  .text-pitch-section,
  .brief-section,
  .chat-section,
  .stack-grid {
    grid-template-columns: 1fr 1fr;
  }

  .feature-section {
    gap: 68px;
  }

  .docs-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .docs-index {
    position: static;
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .doc-steps {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 780px) {
  .site-header {
    padding: 14px 14px 24px;
  }

  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 70px;
    right: 14px;
    left: 14px;
    display: grid;
    gap: 6px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(248, 251, 255, 0.98);
    box-shadow: 0 24px 60px var(--shadow);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .main-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav a {
    padding: 12px;
  }

  .pill-link {
    border-radius: var(--radius);
  }

  .hero-section {
    padding-bottom: 58px;
  }

  .mega-title {
    margin-top: 14px;
    font-size: 4.2rem;
  }

  .hero-image-wrap {
    height: 44dvh;
    min-height: 320px;
  }

  .intro-section {
    margin-bottom: 82px;
  }

  .ca-strip {
    grid-template-columns: auto minmax(0, 1fr) auto;
    width: 100%;
    margin-bottom: 24px;
    border-radius: var(--radius);
  }

  .ca-strip span,
  .ca-strip code,
  .ca-strip button {
    padding: 10px 12px;
  }

  .ca-strip code {
    min-width: 0;
    font-size: 0.9rem;
  }

  .intro-section h2,
  .pitch-copy h2,
  .brief-copy h2,
  .chat-copy h2,
  .board-heading h2,
  .stack-intro h2 {
    font-size: 2rem;
  }

  .text-pitch-section,
  .brief-section,
  .chat-section,
  .feature-row,
  .feature-row-reverse,
  .board-grid,
  .stack-grid {
    grid-template-columns: 1fr;
  }

  .text-pitch-section,
  .brief-section {
    gap: 30px;
    margin-bottom: 92px;
  }

  .brief-copy {
    order: 2;
  }

  .brief-list div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .chat-section {
    padding: 24px;
    gap: 28px;
  }

  .chat-log {
    min-height: 260px;
  }

  .board-card {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .board-card:last-child {
    border-bottom: 0;
  }

  .poster-caption {
    right: 14px;
    bottom: 14px;
  }

  .poster-caption strong {
    font-size: 1.25rem;
  }

  .pitch-points article {
    grid-template-columns: 42px 1fr;
    padding: 16px;
  }

  .feature-row,
  .feature-row-reverse {
    gap: 26px;
  }

  .feature-row-reverse .feature-visual {
    order: 0;
  }

  .feature-visual {
    max-width: 280px;
    margin: 0 auto;
  }

  .feature-copy {
    text-align: center;
  }

  .feature-copy h2 {
    font-size: 1.9rem;
  }

  .stack-section {
    padding: 72px 18px;
  }

  .docs-page {
    padding-inline: 14px;
  }

  .docs-hero {
    margin-top: 26px;
    margin-bottom: 34px;
    text-align: left;
  }

  .docs-hero h1 {
    font-size: 4.2rem;
  }

  .docs-hero p:not(.section-label) {
    margin-inline: 0;
  }

  .docs-index {
    grid-template-columns: 1fr;
    padding: 10px;
  }

  .doc-section {
    padding: 22px;
  }

  .doc-section h2 {
    font-size: 1.6rem;
  }

  .doc-table div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .doc-steps article {
    min-height: auto;
  }

  .doc-steps span {
    margin-bottom: 24px;
  }
}

@media (max-width: 380px) {
  .mega-title {
    font-size: 3.5rem;
  }

  .brand-mark span:last-child {
    display: none;
  }

  .docs-hero h1 {
    font-size: 3.4rem;
  }
}