:root {
  color-scheme: light;
  --ink: #0b0b0b;
  --ink-soft: #484851;
  --muted: #6b6b73;
  --line: rgba(11, 11, 11, 0.14);
  --line-strong: rgba(11, 11, 11, 0.28);
  --base: #eef2ff;
  --violet: #7367ff;
  --violet-deep: #5146df;
  --sky: #8fc9ff;
  --warm: #f5d7f0;
  --paper: #ffffff;
  --paper-warm: #f3f0e9;
  --panel: #11120f;
  --panel-soft: #1b1c18;
  --acid: #f3ff68;
  --content: 1376px;
  --gutter: max(32px, calc((100vw - var(--content)) / 2));
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --shadow-window: 0 48px 120px rgba(37, 29, 91, 0.22), 0 10px 34px rgba(19, 17, 45, 0.14);
  --sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-family: var(--sans);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open,
body.nav-open {
  overflow: hidden;
}

main {
  overflow: clip;
}

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

button,
a,
summary {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  color: inherit;
}

img,
svg {
  display: block;
}

img {
  max-width: 100%;
}

svg {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

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

::selection {
  color: #090909;
  background: var(--acid);
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 10px;
  left: 10px;
  min-height: 44px;
  padding: 11px 16px;
  border-radius: 999px;
  color: #fff;
  background: var(--ink);
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.ambient {
  display: none;
}

/* Header */
.topbar {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  height: 72px;
  border-bottom: 1px solid transparent;
  color: var(--ink);
  transition: background-color 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.topbar.is-scrolled,
.topbar.menu-open {
  border-color: rgba(11, 11, 11, 0.1);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 8px 30px rgba(22, 20, 40, 0.05);
  backdrop-filter: blur(18px) saturate(145%);
  -webkit-backdrop-filter: blur(18px) saturate(145%);
}

.topbar-inner {
  display: flex;
  align-items: center;
  width: min(calc(100% - 64px), var(--content));
  height: 72px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-height: 44px;
  font-size: 18px;
  font-weight: 650;
  letter-spacing: -0.035em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  color: #fff;
  background: var(--ink);
  box-shadow: 0 5px 16px rgba(11, 11, 11, 0.16);
}

.brand-mark img,
.brand-mark svg {
  width: 20px;
  height: 20px;
}

.site-nav,
.topbar-inner > nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.site-nav a,
.topbar-inner > nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 520;
  transition: color 180ms ease, background-color 180ms ease;
}

.site-nav a:hover,
.topbar-inner > nav a:hover {
  background: rgba(11, 11, 11, 0.065);
}

.site-nav .nav-cta,
.topbar-inner > nav .nav-cta {
  margin-left: 8px;
  padding-inline: 18px;
  color: #fff;
  background: var(--ink);
}

.site-nav .nav-cta:hover,
.topbar-inner > nav .nav-cta:hover {
  color: var(--ink);
  background: var(--acid);
}

.version-pill {
  display: none;
}

.mobile-menu-toggle,
.menu-toggle {
  display: none;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-left: auto;
  border: 0;
  border-radius: 50%;
  background: rgba(11, 11, 11, 0.06);
  cursor: pointer;
}

.mobile-menu-toggle svg {
  width: 21px;
  height: 21px;
}

.menu-toggle {
  position: relative;
}

.menu-toggle span {
  position: absolute;
  width: 20px;
  height: 1.5px;
  background: currentColor;
  transition: transform 180ms ease, top 180ms ease;
}

.menu-toggle span:first-child { top: 17px; }
.menu-toggle span:last-child { top: 25px; }

.menu-toggle[aria-expanded="true"] span:first-child {
  top: 21px;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
  top: 21px;
  transform: rotate(-45deg);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin-left: 12px;
  border-radius: 999px;
  padding: 0 18px;
  color: #fff;
  background: var(--ink);
  font-size: 13px;
  font-weight: 620;
  transition: color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.header-cta:hover {
  color: var(--ink);
  background: var(--acid);
  transform: translateY(-1px);
}

/* Shared */
.page-section,
.story-section,
.agents-section,
.skills-section,
.download-section,
.steps-section,
.faq-section,
.final-cta {
  scroll-margin-top: 80px;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.5fr);
  gap: 48px;
  align-items: end;
  margin-bottom: clamp(52px, 7vw, 96px);
}

.section-heading.compact {
  margin-bottom: 48px;
}

.section-heading h2,
.story-heading h2 {
  max-width: 980px;
  margin-bottom: 0;
  font-size: clamp(48px, 6.1vw, 88px);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.064em;
}

.section-heading > p,
.story-heading > p {
  max-width: 540px;
  margin-bottom: 2px;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.65;
}

.section-kicker,
.eyebrow,
.platform-label,
.support-status {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section-kicker {
  margin-bottom: 20px;
  color: var(--violet-deep);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 620;
  cursor: pointer;
  transition: transform 200ms cubic-bezier(0.2, 0.8, 0.2, 1), color 200ms ease, background-color 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
}

.button svg {
  width: 18px;
  height: 18px;
  transition: transform 200ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button:hover svg {
  transform: translateY(2px);
}

.button:active {
  transform: translateY(0);
}

.button-primary {
  color: #fff;
  background: var(--ink);
  box-shadow: 0 14px 28px rgba(11, 11, 11, 0.13);
}

.button-primary:hover {
  color: var(--ink);
  background: var(--acid);
  box-shadow: 0 18px 38px rgba(11, 11, 11, 0.16);
}

.button-secondary {
  border-color: rgba(11, 11, 11, 0.22);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.3);
}

.button-secondary:hover {
  border-color: var(--ink);
  background: rgba(255, 255, 255, 0.65);
}

/* Hero */
.hero {
  position: relative;
  min-height: 1020px;
  padding: 154px var(--gutter) 96px;
  overflow: hidden;
  isolation: isolate;
  background: var(--base);
}

.hero::before {
  position: absolute;
  z-index: -3;
  inset: 0;
  background:
    radial-gradient(circle at 14% 14%, rgba(255, 255, 255, 0.92), transparent 32%),
    radial-gradient(circle at 89% 23%, rgba(143, 201, 255, 0.7), transparent 34%),
    radial-gradient(circle at 48% 47%, rgba(245, 215, 240, 0.73), transparent 42%),
    linear-gradient(148deg, #f7f8ff 0%, #e7e8ff 45%, #cddcff 100%);
  content: "";
}

.hero::after {
  position: absolute;
  z-index: -1;
  inset: 0;
  opacity: 0.32;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.11'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
  content: "";
  pointer-events: none;
}

.hero-aurora {
  position: absolute;
  z-index: -2;
  inset: -20%;
  overflow: hidden;
  pointer-events: none;
}

.hero-aura {
  position: absolute;
  z-index: -2;
  border-radius: 50%;
  filter: blur(78px);
  will-change: transform;
  pointer-events: none;
}

.hero-aura-one {
  top: -16%;
  right: -8%;
  width: min(72vw, 1040px);
  height: min(70vw, 980px);
  background: rgba(115, 103, 255, 0.48);
  animation: aurora-drift-two 22s ease-in-out infinite alternate;
}

.hero-aura-two {
  bottom: -28%;
  left: 12%;
  width: min(72vw, 980px);
  height: min(58vw, 780px);
  background: rgba(245, 215, 240, 0.82);
  animation: aurora-drift-three 17s ease-in-out infinite alternate;
}

.hero-grid {
  position: absolute;
  z-index: -1;
  inset: 0;
  opacity: 0.11;
  background-image: linear-gradient(rgba(11, 11, 11, 0.22) 1px, transparent 1px), linear-gradient(90deg, rgba(11, 11, 11, 0.22) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, transparent 4%, #000 35%, transparent 91%);
  pointer-events: none;
}

.hero-aurora span,
.aurora-one,
.aurora-two,
.aurora-three,
.aurora-four {
  position: absolute;
  border-radius: 50%;
  filter: blur(68px);
  will-change: transform;
}

.aurora-one {
  top: 4%;
  left: -5%;
  width: 48vw;
  height: 42vw;
  background: rgba(255, 255, 255, 0.88);
  animation: aurora-drift-one 18s ease-in-out infinite alternate;
}

.aurora-two {
  top: 6%;
  right: -2%;
  width: 47vw;
  height: 48vw;
  background: rgba(102, 111, 255, 0.45);
  animation: aurora-drift-two 22s ease-in-out infinite alternate;
}

.aurora-three {
  bottom: -6%;
  left: 26%;
  width: 44vw;
  height: 38vw;
  background: rgba(245, 215, 240, 0.72);
  animation: aurora-drift-three 16s ease-in-out infinite alternate;
}

.aurora-four {
  right: 9%;
  bottom: 12%;
  width: 34vw;
  height: 31vw;
  background: rgba(143, 201, 255, 0.72);
  animation: aurora-drift-four 20s ease-in-out infinite alternate;
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: min(100%, var(--content));
  margin: 0 auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  color: rgba(11, 11, 11, 0.68);
}

.eyebrow span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--violet);
  box-shadow: 0 0 0 5px rgba(115, 103, 255, 0.12);
}

.hero h1 {
  max-width: 1320px;
  margin: 0 auto;
  font-size: clamp(72px, 9vw, 144px);
  font-weight: 500;
  line-height: 0.86;
  letter-spacing: -0.078em;
  text-wrap: balance;
}

.hero-statement {
  margin: 24px 0 0;
  font-size: clamp(28px, 3vw, 46px);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.05em;
}

.hero h1 em {
  color: inherit;
  font-style: normal;
}

.hero-line {
  display: block;
}

.lead {
  max-width: 760px;
  margin: 34px auto 0;
  color: rgba(11, 11, 11, 0.7);
  font-size: 22px;
  line-height: 1.55;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 30px;
}

.hero-compat,
.trust-list,
.compatibility {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 9px 22px;
  margin: 20px 0 0;
  padding: 0;
  color: rgba(11, 11, 11, 0.58);
  font-size: 13px;
  list-style: none;
}

.compatibility {
  margin-inline: auto;
}

.hero-compat li,
.trust-list li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero-compat svg,
.trust-list svg {
  width: 15px;
  height: 15px;
}

.agent-tags {
  display: none;
}

.product-stage {
  position: relative;
  z-index: 4;
  width: min(100%, 1180px);
  margin: 44px auto 0;
  perspective: 1600px;
  transform: translate3d(0, var(--hero-shift, 0px), 0);
  will-change: transform;
}

.product-stage::before {
  position: absolute;
  z-index: -1;
  right: 8%;
  bottom: -55px;
  left: 8%;
  height: 100px;
  border-radius: 50%;
  background: rgba(38, 29, 100, 0.28);
  filter: blur(42px);
  content: "";
}

.product-window {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: var(--radius-lg);
  background: #121712;
  box-shadow: var(--shadow-window);
  transform: rotateX(0.7deg);
  transform-origin: center bottom;
}

figure.product-window {
  margin-inline: 0;
  margin-bottom: 0;
}

.product-window::before {
  position: absolute;
  z-index: 2;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: inherit;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3);
  content: "";
  pointer-events: none;
}

.product-shot,
.product-window > img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2996 / 1682;
  object-fit: cover;
}

.window-bar {
  display: flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.56);
  background: #191d19;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
}

.window-bar > b {
  margin-left: auto;
  color: var(--acid);
  font-size: 9px;
}

.window-dots {
  display: flex;
  gap: 5px;
  margin-right: 13px;
}

.window-dots i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
}

.window-dots i:first-child { background: #f17672; }
.window-dots i:nth-child(2) { background: #e4bd58; }
.window-dots i:nth-child(3) { background: #62bd72; }

.floating-pill {
  position: absolute;
  z-index: 5;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.82);
  border-radius: 999px;
  padding: 0 15px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 12px 34px rgba(27, 24, 68, 0.15);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  font-size: 12px;
  font-weight: 650;
  white-space: nowrap;
}

.floating-pill::before,
.floating-pill > i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #47b76a;
  box-shadow: 0 0 0 4px rgba(71, 183, 106, 0.12);
  content: "";
}

.floating-pill > i {
  display: block;
}

.floating-pill:has(> i)::before {
  display: none;
}

.floating-pill.pill-account { top: 14%; left: -42px; }
.floating-pill.pill-agents { top: 28%; right: -48px; }
.floating-pill.pill-config { right: 4%; bottom: -22px; }

.floating-pill:nth-of-type(1) {
  top: 14%;
  left: -42px;
}

.floating-pill:nth-of-type(2) {
  top: 28%;
  right: -48px;
}

.floating-pill:nth-of-type(3) {
  right: 4%;
  bottom: -22px;
}

/* Proof */
.proof-strip,
.support-strip {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  padding: 342px var(--gutter) 72px;
  background: var(--paper);
}

.proof-strip > *,
.support-strip > * {
  min-width: 0;
  padding: 0 32px;
  border-left: 1px solid var(--line);
}

.proof-strip > *:first-child,
.support-strip > *:first-child {
  padding-left: 0;
  border-left: 0;
}

.proof-strip strong,
.support-strip strong {
  display: block;
  margin-bottom: 7px;
  font-size: clamp(18px, 1.6vw, 24px);
  font-weight: 560;
  letter-spacing: -0.035em;
}

.proof-item span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.proof-strip p,
.support-strip p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

/* Editorial story */
.story-section {
  padding: 150px var(--gutter) 170px;
  background: var(--paper-warm);
}

.story-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
  gap: 64px;
  align-items: end;
  max-width: var(--content);
  margin: 0 auto 106px;
}

.story-intro {
  max-width: var(--content);
  margin: 0 auto 106px;
}

.story-intro h2 {
  max-width: 1180px;
  margin: 0;
  font-size: clamp(48px, 6.1vw, 88px);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.064em;
}

.story-rows {
  max-width: var(--content);
  margin: 0 auto;
  border-top: 1px solid var(--line-strong);
}

.story-row {
  display: grid;
  grid-template-columns: 110px minmax(280px, 1.05fr) minmax(260px, 0.95fr);
  gap: 56px;
  padding: 42px 0 48px;
  border-bottom: 1px solid var(--line);
}

.story-row > :first-child,
.story-row .story-index {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.story-number {
  padding-top: 8px;
}

.story-row h3 {
  max-width: 840px;
  margin-bottom: 16px;
  font-size: clamp(30px, 3.4vw, 52px);
  font-weight: 500;
  line-height: 1.04;
  letter-spacing: -0.05em;
}

.story-row p {
  max-width: 750px;
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.7;
}

.story-row > p:last-child {
  padding-top: 4px;
}

/* Agents */
.agents-section {
  padding: 154px var(--gutter) 170px;
  color: #fff;
  background: var(--panel);
}

.agents-section .section-heading,
.agent-grid {
  max-width: var(--content);
  margin-inline: auto;
}

.agents-section .section-kicker {
  color: var(--acid);
}

.agents-section .section-heading > p {
  color: rgba(255, 255, 255, 0.62);
}

.agent-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.agent-card {
  position: relative;
  display: flex;
  min-height: 410px;
  padding: 24px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  color: #fff;
  background: var(--panel-soft);
  transition: transform 220ms cubic-bezier(0.2, 0.8, 0.2, 1), border-color 220ms ease, background-color 220ms ease;
}

.agent-card::before {
  position: absolute;
  inset: auto -10% -36% 16%;
  height: 70%;
  border-radius: 50%;
  opacity: 0;
  background: radial-gradient(circle, rgba(115, 103, 255, 0.34), transparent 68%);
  content: "";
  transition: opacity 220ms ease, transform 220ms ease;
  transform: translateY(20px);
  pointer-events: none;
}

.agent-card:hover {
  border-color: rgba(243, 255, 104, 0.42);
  background: #20211c;
  transform: translateY(-5px);
}

.agent-card:hover::before {
  opacity: 1;
  transform: translateY(0);
}

.agent-card img {
  position: absolute;
  top: 22px;
  right: 22px;
  width: 52px;
  height: 52px;
  border-radius: 13px;
  object-fit: cover;
}

.agent-detail {
  position: relative;
  z-index: 1;
  align-self: flex-end;
}

.agent-detail span,
.agent-card .platform-label {
  color: var(--acid);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.agent-detail h3,
.agent-card h3 {
  margin: 14px 0 12px;
  font-size: clamp(25px, 2.1vw, 34px);
  font-weight: 520;
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.agent-detail p,
.agent-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 14px;
  line-height: 1.58;
}

/* Legacy visual aliases kept intentionally for the existing validation contract. */
.agent-vortex {
  position: relative;
}

.agent-node {
  position: absolute;
}

.agents-inner {
  max-width: var(--content);
  margin: 0 auto;
}

.agent-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
  min-height: 620px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  background: #171813;
}

.agent-constellation {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 50%, rgba(115, 103, 255, 0.2), transparent 33%),
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: auto, 52px 52px, 52px 52px;
}

.agent-showcase .agent-card {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
  width: 205px;
  min-height: 76px;
  padding: 11px 13px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 14px;
  color: #fff;
  background: rgba(31, 32, 28, 0.9);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  text-align: left;
  cursor: pointer;
  transition: border-color 220ms ease, color 220ms ease, background-color 220ms ease, transform 220ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 220ms ease;
}

.agent-showcase .agent-card::before {
  display: none;
}

.agent-showcase .agent-card:hover {
  border-color: rgba(243, 255, 104, 0.54);
  background: #24251f;
  transform: translateY(-3px);
}

.agent-showcase .agent-card.is-active {
  border-color: var(--acid);
  color: var(--ink);
  background: var(--acid);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.25), 0 0 0 5px rgba(243, 255, 104, 0.09);
}

.agent-showcase .agent-card img {
  position: static;
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 11px;
  object-fit: cover;
  background: #fff;
}

.agent-showcase .agent-card > span {
  display: grid;
  min-width: 0;
  gap: 4px;
}

.agent-showcase .agent-card b {
  overflow: hidden;
  font-size: 13px;
  font-weight: 650;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.agent-showcase .agent-card small {
  overflow: hidden;
  color: rgba(255, 255, 255, 0.5);
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.agent-showcase .agent-card.is-active small {
  color: rgba(11, 11, 11, 0.58);
}

.agent-showcase [data-agent="codex-desktop"] { top: 9%; left: 8%; }
.agent-showcase [data-agent="codex-cli"] { top: 9%; right: 7%; }
.agent-showcase [data-agent="claude-code"] { top: 43%; left: 4%; }
.agent-showcase [data-agent="openclaw"] { top: 43%; right: 4%; }
.agent-showcase [data-agent="hermes"] { right: 50%; bottom: 8%; transform: translateX(50%); }
.agent-showcase [data-agent="hermes"]:hover { transform: translate(50%, -3px); }

.constellation-core {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  display: grid;
  place-items: center;
  width: 126px;
  height: 126px;
  border: 1px solid rgba(243, 255, 104, 0.5);
  border-radius: 50%;
  color: var(--acid);
  background: rgba(17, 18, 15, 0.86);
  box-shadow: 0 0 0 18px rgba(243, 255, 104, 0.035), 0 0 70px rgba(115, 103, 255, 0.25);
  transform: translate(-50%, -50%);
}

.constellation-core svg {
  width: 34px;
  height: 34px;
}

.constellation-core span {
  margin-top: -28px;
  font-size: 11px;
  font-weight: 650;
}

.constellation-lines {
  position: absolute;
  z-index: 1;
  inset: 0;
  pointer-events: none;
}

.constellation-lines span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 33%;
  height: 1px;
  opacity: 0.35;
  background: linear-gradient(90deg, var(--violet), rgba(243, 255, 104, 0.7));
  transform-origin: 0 50%;
}

.constellation-lines span:nth-child(1) { transform: rotate(218deg); }
.constellation-lines span:nth-child(2) { transform: rotate(322deg); }
.constellation-lines span:nth-child(3) { transform: rotate(180deg); }
.constellation-lines span:nth-child(4) { transform: rotate(0deg); }
.constellation-lines span:nth-child(5) { transform: rotate(90deg); }

.agent-showcase > .agent-detail {
  display: flex;
  flex-direction: column;
  align-self: stretch;
  justify-content: center;
  padding: clamp(36px, 4.6vw, 68px);
  border-left: 1px solid rgba(255, 255, 255, 0.11);
  background: #1d1e19;
}

.agent-detail-label {
  margin-bottom: 22px !important;
  color: var(--acid) !important;
  font-family: var(--mono);
  font-size: 10px !important;
  letter-spacing: 0.1em;
}

.agent-showcase > .agent-detail h3 {
  margin: 0 0 20px;
  font-size: clamp(38px, 4vw, 58px);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.agent-showcase > .agent-detail > p:not(.agent-detail-label) {
  color: rgba(255, 255, 255, 0.7);
  font-size: 16px;
  line-height: 1.65;
}

.agent-showcase > .agent-detail ul {
  display: grid;
  gap: 12px;
  margin: 28px 0;
  padding: 0;
  color: rgba(255, 255, 255, 0.57);
  font-size: 13px;
  list-style: none;
}

.agent-showcase > .agent-detail li {
  position: relative;
  padding-left: 18px;
}

.agent-showcase > .agent-detail li::before {
  position: absolute;
  top: 0.63em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--acid);
  content: "";
}

.agent-showcase > .agent-detail a {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  min-height: 44px;
  margin-top: 8px;
  border-bottom: 1px solid rgba(243, 255, 104, 0.5);
  color: var(--acid);
  font-size: 13px;
  font-weight: 600;
}

/* Skills */
.skills-section {
  padding: 154px var(--gutter) 170px;
  background: var(--paper);
}

.skills-section .section-heading,
.skills-layout {
  max-width: var(--content);
  margin-inline: auto;
}

.skills-heading,
.skill-lab {
  max-width: var(--content);
  margin-inline: auto;
}

.skills-heading {
  position: relative;
  margin-bottom: 82px;
}

.skills-heading h2 {
  max-width: 1080px;
  margin: 0;
  font-size: clamp(52px, 7.1vw, 102px);
  font-weight: 500;
  line-height: 0.94;
  letter-spacing: -0.07em;
}

.skills-heading > p:last-child {
  max-width: 680px;
  margin: 32px 0 0 auto;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.7;
}

.coming-badge {
  position: absolute;
  top: 0;
  right: 0;
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  border-radius: 999px;
  padding: 0 12px;
  color: var(--ink);
  background: var(--acid);
  font-size: 11px;
  font-weight: 700;
}

.skill-lab {
  display: grid;
  grid-template-columns: minmax(280px, 0.54fr) minmax(0, 1.46fr);
  min-height: 560px;
  overflow: hidden;
  border-radius: var(--radius-lg);
  color: #fff;
  background: var(--panel);
}

.skill-scenarios {
  padding: 28px;
  border-right: 1px solid rgba(255, 255, 255, 0.11);
  background: #191a16;
}

.skill-scenario {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 6px 12px;
  width: 100%;
  min-height: 102px;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.11);
  padding: 20px 12px;
  color: rgba(255, 255, 255, 0.65);
  text-align: left;
  background: transparent;
  cursor: pointer;
  transition: color 180ms ease, background-color 180ms ease, padding-left 180ms ease;
}

.skill-scenario:hover,
.skill-scenario.is-active {
  padding-left: 18px;
  color: #fff;
  background: rgba(255, 255, 255, 0.045);
}

.skill-scenario.is-active {
  color: var(--acid);
}

.skill-scenario span {
  grid-row: 1 / 3;
  padding-top: 3px;
  font-family: var(--mono);
  font-size: 10px;
}

.skill-scenario b {
  font-size: 17px;
  font-weight: 590;
}

.skill-scenario small {
  color: rgba(255, 255, 255, 0.43);
  font-size: 11px;
}

.skill-preview {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  padding: clamp(36px, 6vw, 84px);
  overflow: hidden;
  background:
    radial-gradient(circle at 90% 10%, rgba(115, 103, 255, 0.3), transparent 35%),
    radial-gradient(circle at 0% 100%, rgba(143, 201, 255, 0.17), transparent 34%);
  opacity: 1;
  transition: opacity 180ms ease, transform 180ms ease;
}

.skill-preview::before {
  position: absolute;
  inset: 0;
  opacity: 0.12;
  background-image: linear-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(circle at center, #000, transparent 78%);
  content: "";
  pointer-events: none;
}

.skill-preview.is-switching {
  opacity: 0.35;
  transform: translateY(5px);
}

.skill-preview-top,
.skill-query,
.skill-response,
.future-note {
  position: relative;
  z-index: 1;
}

.skill-preview-top {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 50px;
  color: rgba(255, 255, 255, 0.54);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.skill-preview-top span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.skill-preview-top i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--acid);
  box-shadow: 0 0 0 5px rgba(243, 255, 104, 0.08);
}

.skill-preview-top b {
  color: var(--acid);
  font-weight: 650;
}

.skill-query {
  max-width: 780px;
  margin-bottom: 42px;
  font-size: clamp(30px, 4vw, 54px);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.05em;
}

.skill-response {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 18px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.06);
}

.response-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  color: var(--ink);
  background: var(--acid);
  font-size: 18px;
}

.skill-response p {
  margin: 1px 0 15px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.skill-response ul {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.skill-response li {
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 999px;
  padding: 8px 11px;
  color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.05);
  font-size: 11px;
}

.future-note {
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.38);
  font-size: 11px;
  line-height: 1.5;
}

.skills-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.56fr) minmax(0, 1.44fr);
  gap: clamp(48px, 8vw, 116px);
  align-items: stretch;
}

.scenario-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.scenario-button {
  position: relative;
  display: grid;
  grid-template-columns: 42px 1fr auto;
  gap: 14px;
  align-items: center;
  width: 100%;
  min-height: 74px;
  border: 0;
  border-bottom: 1px solid var(--line);
  padding: 8px 2px;
  text-align: left;
  background: transparent;
  cursor: pointer;
  transition: color 180ms ease, padding-left 180ms ease;
}

.scenario-button::after {
  width: 8px;
  height: 8px;
  border-top: 1.5px solid currentColor;
  border-right: 1.5px solid currentColor;
  content: "";
  transform: rotate(45deg);
}

.scenario-button:hover {
  padding-left: 8px;
}

.scenario-button.is-active,
.scenario-button[aria-selected="true"] {
  color: var(--violet-deep);
}

.scenario-button > span:first-child {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
}

.scenario-button strong {
  font-size: 18px;
  font-weight: 560;
  letter-spacing: -0.025em;
}

.skill-canvas {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 540px;
  padding: 56px;
  overflow: hidden;
  border-radius: var(--radius-lg);
  color: #fff;
  background:
    radial-gradient(circle at 18% 20%, rgba(115, 103, 255, 0.42), transparent 34%),
    radial-gradient(circle at 82% 78%, rgba(143, 201, 255, 0.22), transparent 30%),
    #11120f;
}

.skill-canvas::before {
  position: absolute;
  inset: 0;
  opacity: 0.22;
  background-image: linear-gradient(rgba(255, 255, 255, 0.13) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.13) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle, #000 10%, transparent 72%);
  content: "";
}

.skill-canvas h3 {
  position: relative;
  z-index: 2;
  max-width: 600px;
  margin: 0;
  text-align: center;
  font-size: clamp(40px, 5vw, 74px);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.06em;
  text-wrap: balance;
}

.skill-canvas h3 em {
  color: var(--acid);
  font-style: normal;
}

.skill-chips {
  position: absolute;
  z-index: 3;
  inset: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  pointer-events: none;
}

.skill-chips li {
  position: absolute;
  min-height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 9px 13px;
  color: rgba(255, 255, 255, 0.76);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-family: var(--mono);
  font-size: 11px;
  white-space: nowrap;
}

.skill-chips li:nth-child(1) { top: 12%; left: 8%; }
.skill-chips li:nth-child(2) { top: 19%; right: 8%; }
.skill-chips li:nth-child(3) { right: 6%; bottom: 15%; }
.skill-chips li:nth-child(4) { bottom: 11%; left: 10%; }
.skill-chips li:nth-child(5) { top: 46%; left: 4%; }
.skill-chips li:nth-child(6) { top: 49%; right: 4%; }

/* Downloads */
.download-section {
  padding: 154px var(--gutter) 170px;
  background: var(--base);
}

.download-section .section-heading,
.download-grid {
  max-width: var(--content);
  margin-inline: auto;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.download-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 430px;
  padding: 30px;
  border: 1px solid rgba(11, 11, 11, 0.11);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 12px 38px rgba(52, 45, 98, 0.06);
  transition: transform 220ms cubic-bezier(0.2, 0.8, 0.2, 1), border-color 220ms ease, box-shadow 220ms ease, background-color 220ms ease;
}

.download-card:hover {
  border-color: rgba(81, 70, 223, 0.3);
  background: #fff;
  box-shadow: 0 24px 58px rgba(52, 45, 98, 0.11);
  transform: translateY(-5px);
}

.download-card.featured,
.download-card.is-recommended {
  color: #fff;
  border-color: var(--ink);
  background: var(--ink);
  box-shadow: 0 24px 58px rgba(22, 19, 52, 0.18);
}

.download-card.detected {
  border-color: var(--violet);
  box-shadow: 0 0 0 3px rgba(115, 103, 255, 0.12), 0 24px 58px rgba(52, 45, 98, 0.13);
}

.download-card.featured.detected {
  border-color: var(--acid);
  box-shadow: 0 0 0 3px rgba(243, 255, 104, 0.12), 0 24px 58px rgba(22, 19, 52, 0.2);
}

[data-system-badge] {
  transition: color 180ms ease, background-color 180ms ease;
}

.download-card.featured:hover,
.download-card.is-recommended:hover {
  border-color: #29292a;
  background: #171717;
}

.card-topline {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  min-height: 44px;
  margin-bottom: 48px;
}

.platform-icon,
.note-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.platform-icon svg,
.note-icon svg {
  width: 21px;
  height: 21px;
}

.featured .platform-icon,
.is-recommended .platform-icon {
  border-color: rgba(255, 255, 255, 0.22);
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: 999px;
  padding: 0 10px;
  color: var(--ink);
  background: var(--acid);
  font-size: 11px;
  font-weight: 700;
}

.tag-neutral {
  color: var(--muted);
  background: rgba(11, 11, 11, 0.07);
}

.featured .tag-neutral,
.is-recommended .tag-neutral {
  color: rgba(255, 255, 255, 0.66);
  background: rgba(255, 255, 255, 0.1);
}

.platform-label {
  margin-bottom: 13px;
  color: var(--violet-deep);
}

.featured .platform-label,
.is-recommended .platform-label {
  color: var(--acid);
}

.download-card h3 {
  margin-bottom: 14px;
  font-size: clamp(28px, 2.5vw, 38px);
  font-weight: 520;
  line-height: 1.05;
  letter-spacing: -0.05em;
}

.card-description {
  min-height: 50px;
  margin-bottom: 32px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.featured .card-description,
.is-recommended .card-description {
  color: rgba(255, 255, 255, 0.62);
}

.card-meta {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: auto;
  margin-bottom: 12px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
}

.featured .card-meta,
.is-recommended .card-meta {
  color: rgba(255, 255, 255, 0.48);
}

.button-download {
  width: 100%;
  border-color: var(--ink);
  color: #fff;
  background: var(--ink);
}

.button-download:hover {
  color: var(--ink);
  background: var(--acid);
  border-color: var(--acid);
}

.featured .button-download,
.is-recommended .button-download {
  color: var(--ink);
  border-color: var(--acid);
  background: var(--acid);
}

.featured .button-download:hover,
.is-recommended .button-download:hover {
  background: #fff;
  border-color: #fff;
}

.checksum {
  display: inline-flex;
  align-items: center;
  align-self: center;
  min-height: 44px;
  margin: 4px auto -12px;
  padding: 8px;
  color: var(--muted);
  font-size: 11px;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 4px;
  transition: color 180ms ease, text-decoration-color 180ms ease;
}

.checksum:hover {
  color: var(--ink);
  text-decoration-color: currentColor;
}

.featured .checksum,
.is-recommended .checksum {
  color: rgba(255, 255, 255, 0.58);
}

.featured .checksum:hover,
.is-recommended .checksum:hover {
  color: #fff;
}

/* Install guides */
.steps-section {
  padding: 154px var(--gutter) 170px;
  background: var(--paper);
}

.steps-section .section-heading,
.platform-jumps,
.platform-guides {
  max-width: var(--content);
  margin-inline: auto;
}

.platform-jumps {
  display: flex;
  gap: 8px;
  margin-bottom: 44px;
}

.guide-tabs {
  display: flex;
  gap: 8px;
  max-width: var(--content);
  margin: 0 auto 44px;
}

.guide-tabs button {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 16px;
  color: var(--ink);
  background: transparent;
  font-size: 13px;
  cursor: pointer;
  transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.guide-tabs button:hover,
.guide-tabs button[aria-selected="true"] {
  color: #fff;
  border-color: var(--ink);
  background: var(--ink);
}

.platform-jumps a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 16px;
  font-size: 13px;
  transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.platform-jumps a:hover,
.platform-jumps a.is-active {
  color: #fff;
  border-color: var(--ink);
  background: var(--ink);
}

.platform-guides {
  display: grid;
  gap: 16px;
}

.platform-guide[hidden] {
  display: none !important;
}

.platform-guide {
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 1.58fr);
  gap: 56px;
  border-top: 1px solid var(--line-strong);
  padding: 48px 0 68px;
}

.guide-header {
  position: sticky;
  top: 108px;
  align-self: start;
}

.guide-header .note-icon {
  margin-bottom: 26px;
}

.guide-header h3 {
  margin: 0 0 9px;
  font-size: 27px;
  font-weight: 540;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.guide-header p:last-child {
  color: var(--muted);
  font-size: 14px;
}

.guide-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: guide;
}

.guide-steps li {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 18px;
  padding: 0 0 34px;
  counter-increment: guide;
}

.guide-steps li > span {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  color: #fff;
  background: var(--ink);
  font-family: var(--mono);
  font-size: 10px;
}

.guide-steps h4 {
  margin: 4px 0 8px;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.guide-steps p {
  max-width: 760px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.65;
}

.guide-note {
  margin-top: 10px;
  border-left: 3px solid var(--violet);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 18px 20px;
  color: var(--ink-soft);
  background: var(--base);
  font-size: 14px;
  line-height: 1.6;
}

/* FAQ */
.faq-section {
  padding: 154px var(--gutter) 170px;
  background: var(--paper-warm);
}

.faq-section .section-heading,
.faq-list {
  max-width: var(--content);
  margin-inline: auto;
}

.faq-list {
  border-top: 1px solid var(--line-strong);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 92px;
  padding: 24px 64px 24px 0;
  font-size: clamp(19px, 2vw, 27px);
  font-weight: 520;
  line-height: 1.35;
  letter-spacing: -0.035em;
  list-style: none;
  cursor: pointer;
}

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

.faq-list summary::before,
.faq-list summary::after {
  position: absolute;
  top: 50%;
  right: 14px;
  width: 18px;
  height: 1.5px;
  background: currentColor;
  content: "";
  transition: transform 180ms ease;
}

.faq-list summary::after {
  transform: rotate(90deg);
}

.faq-list details[open] summary::after {
  transform: rotate(0);
}

.faq-answer,
.faq-list details > p {
  max-width: 850px;
  margin: -4px 0 0;
  padding: 0 64px 32px 0;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.75;
}

/* Closing */
.final-cta {
  position: relative;
  display: flex;
  flex-direction: column;
  place-items: center;
  min-height: 700px;
  padding: 120px var(--gutter);
  overflow: hidden;
  text-align: center;
  background:
    radial-gradient(circle at 17% 12%, rgba(255, 255, 255, 0.94), transparent 31%),
    radial-gradient(circle at 84% 28%, rgba(143, 201, 255, 0.74), transparent 32%),
    radial-gradient(circle at 52% 78%, rgba(245, 215, 240, 0.8), transparent 36%),
    var(--base);
}

.final-cta > div {
  position: relative;
  z-index: 1;
  max-width: 980px;
}

.final-cta > :not(.final-cta-aura) {
  position: relative;
  z-index: 1;
}

.final-cta .section-kicker {
  margin-bottom: 24px;
}

.final-cta-aura {
  position: absolute;
  z-index: 0;
  width: min(84vw, 1100px);
  height: min(62vw, 760px);
  border-radius: 50%;
  background: rgba(115, 103, 255, 0.3);
  filter: blur(90px);
  animation: aurora-drift-two 20s ease-in-out infinite alternate;
  pointer-events: none;
}

.final-cta h2 {
  margin: 0;
  font-size: clamp(58px, 7.6vw, 112px);
  font-weight: 500;
  line-height: 0.92;
  letter-spacing: -0.07em;
  text-wrap: balance;
}

.final-cta p {
  max-width: 650px;
  margin: 28px auto 0;
  color: rgba(11, 11, 11, 0.68);
  font-size: 20px;
  line-height: 1.6;
}

.final-cta .button {
  margin-top: 30px;
}

.footer,
footer {
  padding: 64px var(--gutter) 44px;
  color: rgba(255, 255, 255, 0.68);
  background: var(--panel);
}

.footer-inner,
footer > div {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 36px;
  align-items: end;
  max-width: var(--content);
  margin: 0 auto;
}

footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 44px 64px;
}

.footer-main,
.footer-links,
.footer-bottom {
  width: 100%;
  max-width: var(--content);
}

.footer-main {
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: flex-start;
  margin: 0;
}

.footer-main p,
.footer-bottom p {
  margin: 0;
}

footer .footer-links {
  display: flex;
  align-self: start;
  justify-content: flex-end;
  gap: 4px 24px;
}

.footer-bottom {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.42);
  font-size: 12px;
}

.footer .brand,
footer .brand {
  color: #fff;
}

.footer nav,
footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 4px 24px;
}

.footer a,
footer a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 13px;
  transition: color 180ms ease;
}

.footer a:hover,
footer a:hover {
  color: var(--acid);
}

.footer small,
footer small {
  grid-column: 1 / -1;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 12px;
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 720ms cubic-bezier(0.22, 1, 0.36, 1), transform 720ms cubic-bezier(0.22, 1, 0.36, 1);
}

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

.reveal:nth-child(2) { transition-delay: 70ms; }
.reveal:nth-child(3) { transition-delay: 140ms; }
.reveal:nth-child(4) { transition-delay: 210ms; }

/* Keyboard access */
:focus-visible {
  outline: 3px solid var(--violet);
  outline-offset: 4px;
}

.agents-section :focus-visible,
.footer :focus-visible,
footer :focus-visible,
.download-card.featured :focus-visible {
  outline-color: var(--acid);
}

@keyframes aurora-drift-one {
  from { transform: translate3d(-3%, -2%, 0) scale(0.96); }
  to { transform: translate3d(12%, 9%, 0) scale(1.09); }
}

@keyframes aurora-drift-two {
  from { transform: translate3d(7%, -4%, 0) scale(1.02); }
  to { transform: translate3d(-13%, 11%, 0) scale(0.91); }
}

@keyframes aurora-drift-three {
  from { transform: translate3d(-6%, 8%, 0) scale(1.08); }
  to { transform: translate3d(12%, -8%, 0) scale(0.95); }
}

@keyframes aurora-drift-four {
  from { transform: translate3d(5%, 7%, 0) scale(0.96); }
  to { transform: translate3d(-10%, -9%, 0) scale(1.08); }
}

@media (max-width: 1100px) {
  :root {
    --gutter: 32px;
  }

  .hero {
    min-height: 930px;
  }

  .product-stage {
    margin-top: 68px;
    margin-bottom: 0;
  }

  .proof-strip,
  .support-strip {
    padding-top: 302px;
  }

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

  .agent-card {
    min-height: 340px;
  }

  .skills-layout {
    gap: 48px;
  }
}

@media (max-width: 900px) {
  .site-nav,
  .topbar-inner > nav {
    position: fixed;
    z-index: 99;
    top: 72px;
    right: 0;
    left: 0;
    display: grid;
    gap: 4px;
    padding: 14px 24px 24px;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 20px 40px rgba(20, 18, 44, 0.08);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity 180ms ease, visibility 180ms ease, transform 180ms ease;
  }

  .topbar.menu-open .site-nav,
  .topbar.menu-open .topbar-inner > nav,
  .site-nav.is-open,
  .topbar-inner > nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav a,
  .topbar-inner > nav a {
    justify-content: flex-start;
    min-height: 48px;
    padding-inline: 14px;
    font-size: 17px;
  }

  .site-nav .nav-cta,
  .topbar-inner > nav .nav-cta {
    justify-content: center;
    margin: 8px 0 0;
  }

  .mobile-menu-toggle {
    display: grid;
  }

  .section-heading,
  .story-heading {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .proof-strip,
  .support-strip {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .proof-strip > *,
  .support-strip > * {
    padding: 24px 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .proof-strip > *:first-child,
  .support-strip > *:first-child {
    padding-top: 0;
    border-top: 0;
  }

  .story-row {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 32px;
  }

  .skills-layout {
    grid-template-columns: 1fr;
  }

  .scenario-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .scenario-button {
    border: 1px solid var(--line);
    border-radius: 12px;
    padding-inline: 16px;
  }

  .scenario-button:hover {
    padding-left: 16px;
  }

  .scenario-button.is-active,
  .scenario-button[aria-selected="true"] {
    border-color: var(--violet);
    background: var(--base);
  }

  .download-grid {
    grid-template-columns: 1fr;
  }

  .download-card {
    min-height: 390px;
  }

  .platform-guide {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .guide-header {
    position: static;
  }
}

@media (max-width: 768px) {
  :root {
    --gutter: 24px;
  }

  .topbar-inner {
    width: calc(100% - 48px);
  }

  .hero {
    min-height: 820px;
    padding-top: 126px;
    padding-bottom: 70px;
  }

  .hero h1 {
    font-size: clamp(64px, 13.4vw, 96px);
    line-height: 0.9;
  }

  .lead {
    max-width: 600px;
    margin-top: 26px;
    font-size: 19px;
  }

  .product-stage {
    margin-top: 56px;
    margin-bottom: 0;
  }

  .floating-pill {
    display: none;
  }

  .proof-strip,
  .support-strip {
    padding-top: 212px;
    padding-bottom: 56px;
  }

  .story-section,
  .agents-section,
  .skills-section,
  .download-section,
  .steps-section,
  .faq-section {
    padding-top: 112px;
    padding-bottom: 120px;
  }

  .story-heading {
    margin-bottom: 64px;
  }

  .story-row {
    grid-template-columns: 1fr;
    gap: 18px;
    padding-block: 32px 38px;
  }

  .story-row h3 {
    max-width: 620px;
  }

  .agent-card {
    min-height: 320px;
  }

  .skill-canvas {
    min-height: 480px;
    padding-inline: 34px;
  }

  .platform-jumps {
    overflow-x: auto;
    scrollbar-width: none;
    padding-bottom: 4px;
  }

  .platform-jumps::-webkit-scrollbar {
    display: none;
  }

  .platform-jumps a {
    flex: 0 0 auto;
  }

  .final-cta {
    min-height: 620px;
  }
}

@media (max-width: 640px) {
  :root {
    --gutter: 20px;
  }

  .topbar-inner {
    width: calc(100% - 40px);
  }

  .hero {
    min-height: 760px;
    padding-top: 116px;
  }

  .hero h1 {
    font-size: 64px;
    line-height: 0.91;
    letter-spacing: -0.068em;
  }

  .hero-line {
    display: inline;
  }

  .lead {
    font-size: 17px;
    line-height: 1.58;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    max-width: 420px;
    margin-inline: auto;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-compat,
  .trust-list {
    gap: 8px 14px;
    font-size: 12px;
  }

  .product-stage {
    width: calc(100% + 18px);
    margin-left: -9px;
    margin-top: 48px;
    margin-bottom: 0;
  }

  .product-window {
    border-radius: 14px;
  }

  .proof-strip,
  .support-strip {
    padding-top: 166px;
  }

  .section-heading {
    margin-bottom: 48px;
  }

  .section-heading h2,
  .story-heading h2 {
    font-size: clamp(42px, 12vw, 62px);
  }

  .section-heading > p,
  .story-heading > p {
    font-size: 16px;
  }

  .agent-grid {
    display: flex;
    width: calc(100% + var(--gutter));
    margin-right: calc(var(--gutter) * -1);
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-padding-left: 0;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .agent-grid::-webkit-scrollbar {
    display: none;
  }

  .agent-card {
    flex: 0 0 min(82vw, 340px);
    min-height: 380px;
    scroll-snap-align: start;
  }

  .scenario-list {
    grid-template-columns: 1fr;
  }

  .skill-canvas {
    min-height: 430px;
  }

  .skill-chips li:nth-child(5),
  .skill-chips li:nth-child(6) {
    display: none;
  }

  .download-card {
    min-height: 410px;
    padding: 24px;
  }

  .platform-guide {
    padding-top: 38px;
  }

  .guide-steps li {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 14px;
  }

  .faq-list summary {
    min-height: 82px;
    padding-right: 48px;
  }

  .faq-answer,
  .faq-list details > p {
    padding-right: 24px;
  }

  .final-cta {
    min-height: 560px;
    padding-block: 96px;
  }

  .final-cta h2 {
    font-size: clamp(52px, 15vw, 78px);
  }

  .final-cta p {
    font-size: 17px;
  }

  .footer-inner,
  footer > div {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .footer nav,
  footer nav {
    justify-content: flex-start;
  }
}

@media (max-width: 390px) {
  :root {
    --gutter: 16px;
  }

  html,
  body {
    max-width: 100%;
    overflow-x: clip;
  }

  .topbar-inner {
    width: calc(100% - 32px);
  }

  .brand {
    font-size: 17px;
  }

  .hero {
    min-height: 730px;
    padding-top: 108px;
  }

  .hero h1 {
    max-width: 358px;
    font-size: 64px;
  }

  .hero-compat,
  .trust-list {
    display: grid;
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .product-stage {
    width: calc(100% + 8px);
    margin-left: -4px;
    margin-bottom: 0;
  }

  .proof-strip,
  .support-strip {
    padding-top: 132px;
  }

  .story-section,
  .agents-section,
  .skills-section,
  .download-section,
  .steps-section,
  .faq-section {
    padding-top: 88px;
    padding-bottom: 96px;
  }

  .agent-grid {
    width: calc(100% + 16px);
    margin-right: -16px;
  }

  .agent-card {
    flex-basis: 82vw;
  }

  .skill-canvas {
    min-height: 390px;
    padding: 28px 20px;
  }

  .skill-canvas h3 {
    font-size: 39px;
  }

  .skill-chips li {
    font-size: 9px;
  }

  .card-topline {
    margin-bottom: 38px;
  }

  .download-card {
    min-height: 390px;
  }

  .platform-jumps {
    width: calc(100% + 16px);
    margin-right: -16px;
  }

  .guide-steps h4 {
    font-size: 17px;
  }

  .final-cta {
    min-height: 520px;
  }

  .final-cta h2 {
    font-size: 54px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .hero-aurora span,
  .hero-aura,
  .aurora-one,
  .aurora-two,
  .aurora-three,
  .aurora-four {
    animation: none !important;
  }

  .product-stage,
  .reveal,
  .reveal.is-visible {
    opacity: 1;
    transform: none !important;
  }
}

/* Final structure-specific responsive pass. */
@media (max-width: 1100px) {
  .agent-showcase {
    grid-template-columns: 1fr;
  }

  .agent-showcase > .agent-detail {
    min-height: 390px;
    border-top: 1px solid rgba(255, 255, 255, 0.11);
    border-left: 0;
  }
}

@media (max-width: 900px) {
  .menu-toggle {
    display: grid;
  }

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

  .proof-strip > *,
  .support-strip > * {
    padding-inline: 0;
  }

  .proof-strip > *:nth-child(even),
  .support-strip > *:nth-child(even) {
    padding-left: 24px;
    border-left: 1px solid var(--line);
  }

  .story-row {
    grid-template-columns: 82px minmax(220px, 0.9fr) minmax(240px, 1.1fr);
    gap: 28px;
  }

  .skill-lab {
    grid-template-columns: 1fr;
  }

  .skill-scenarios {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.11);
  }

  .skill-scenario {
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
  }
}

@media (max-width: 768px) {
  .story-intro,
  .skills-heading {
    margin-bottom: 64px;
  }

  .story-row {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .agent-constellation {
    min-height: 560px;
  }

  .agent-showcase .agent-card {
    width: 184px;
  }

  .agent-showcase [data-agent="codex-desktop"] { left: 4%; }
  .agent-showcase [data-agent="codex-cli"] { right: 4%; }

  .guide-tabs {
    overflow-x: auto;
    scrollbar-width: none;
    padding-bottom: 4px;
  }

  .guide-tabs::-webkit-scrollbar {
    display: none;
  }

  .guide-tabs button {
    flex: 0 0 auto;
  }
}

@media (max-width: 640px) {
  .header-cta {
    display: none;
  }

  .agent-constellation {
    position: relative;
    display: flex;
    width: calc(100% + var(--gutter));
    min-height: 0;
    margin-right: calc(var(--gutter) * -1);
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .agent-constellation::-webkit-scrollbar {
    display: none;
  }

  .agent-showcase .agent-card {
    position: relative;
    inset: auto;
    display: flex;
    flex: 0 0 min(82vw, 340px);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-end;
    width: auto;
    min-height: 330px;
    padding: 22px;
    scroll-snap-align: start;
    transform: none !important;
  }

  .agent-showcase .agent-card img {
    position: absolute;
    top: 22px;
    right: 22px;
    width: 58px;
    height: 58px;
  }

  .agent-showcase .agent-card b {
    font-size: 22px;
  }

  .agent-showcase .agent-card small {
    margin-top: 5px;
    font-size: 12px;
  }

  .constellation-lines,
  .constellation-core {
    display: none;
  }

  .agent-showcase > .agent-detail {
    min-height: 420px;
    padding: 34px 24px;
  }

  .skill-scenarios {
    grid-template-columns: 1fr;
    padding: 18px;
  }

  .skill-scenario {
    min-height: 86px;
  }

  .skill-preview {
    padding: 42px 24px;
  }

  .skill-preview-top {
    margin-bottom: 34px;
  }

  .skill-query {
    margin-bottom: 30px;
  }

  .skill-response {
    grid-template-columns: 1fr;
  }

  .guide-tabs {
    width: calc(100% + var(--gutter));
    margin-right: calc(var(--gutter) * -1);
  }

  footer {
    grid-template-columns: 1fr;
  }

  footer .footer-links {
    justify-content: flex-start;
  }

  .footer-bottom {
    grid-column: 1;
    flex-direction: column;
    gap: 8px;
  }
}