:root {
  --void: #07080c;
  --graphite: #0d0f14;
  --panel: #14171f;
  --raised: #1b1f2a;
  --line: rgba(196, 208, 228, 0.12);
  --line-strong: rgba(196, 208, 228, 0.22);
  --ivory: #f3eee3;
  --ivory-dim: #c9c3b6;
  --muted: #8b93a6;
  --indigo: #7c6bff;
  --indigo-deep: #3d348f;
  --cyan: #3ee0ff;
  --signal: linear-gradient(118deg, #7c6bff 0%, #4aa7ff 48%, #3ee0ff 100%);
  --danger: #ff6b6b;
  --ok: #5ee0b5;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
  --radius: 22px;
  --page-max: 1180px;
  --page-gutter: 20px;
  --pad: 22px;
  --nav-h: 76px;
  --z-nav: 50;
  --z-overlay: 60;
  --display: "Instrument Serif", "Iowan Old Style", Georgia, serif;
  --sans: "Instrument Sans", "Avenir Next", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

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

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--void);
  color: var(--ivory);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
}

body {
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: -10% 10% auto;
  height: 42vh;
  background: radial-gradient(closest-side, rgba(124, 107, 255, 0.18), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

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

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

button,
.btn,
.copy-btn,
.nav-toggle,
.tab,
.request-chip {
  cursor: pointer;
  font: inherit;
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 12px;
  top: -40px;
  z-index: 70;
  padding: 8px 12px;
  background: var(--cyan);
  color: #041018;
  font-weight: 600;
}

.skip:focus {
  top: 12px;
}

.wrap {
  width: min(var(--page-max), calc(100% - var(--page-gutter) * 2));
  margin-inline: auto;
}

.nav {
  position: sticky;
  top: 14px;
  z-index: var(--z-nav);
  margin: 14px auto 0;
  width: min(var(--page-max), calc(100% - var(--page-gutter) * 2));
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(10, 12, 18, 0.72);
  backdrop-filter: blur(18px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 58px;
  padding: 8px 10px 8px 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.brand img,
.brand svg {
  width: 34px;
  height: 34px;
  border-radius: 10px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--ivory-dim);
  font-size: 0.92rem;
  transition: color 180ms ease, background 180ms ease;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--ivory);
  background: rgba(255, 255, 255, 0.05);
}

.nav-cta {
  margin-left: 6px;
  padding: 9px 16px !important;
  background: var(--signal) !important;
  color: #061018 !important;
  font-weight: 650;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--ivory);
}

.hero {
  position: relative;
  isolation: isolate;
  padding: 72px 0 48px;
  min-height: calc(100svh - 90px);
  display: grid;
  align-items: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -8% 8% auto;
  height: 62%;
  background:
    radial-gradient(closest-side, rgba(124, 107, 255, 0.28), transparent 72%),
    radial-gradient(closest-side, rgba(62, 224, 255, 0.16), transparent 70%);
  filter: blur(8px);
  z-index: -2;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.kicker {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 18px;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.kicker i {
  width: 28px;
  height: 1px;
  background: var(--signal);
  font-style: normal;
}

h1,
h2,
h3 {
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 0.92;
}

h1 {
  margin: 0 0 20px;
  font-family: var(--display);
  font-size: clamp(3.4rem, 8.4vw, 7.6rem);
}

h1 .headline-gap {
  display: inline-block;
  width: 0.48em;
}

h1 em {
  font-style: italic;
  background: var(--signal);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  max-width: 38rem;
  margin: 0 0 28px;
  color: var(--ivory-dim);
  font-size: 1.18rem;
  line-height: 1.55;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  letter-spacing: -0.02em;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--signal);
  color: #061018;
}

.btn-ghost {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.03);
  color: var(--ivory);
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.78rem;
}

.engine {
  position: relative;
  aspect-ratio: 1;
  max-width: 520px;
  margin-inline: auto;
  transform-style: preserve-3d;
}

.engine-field {
  position: absolute;
  inset: 8%;
  border-radius: 36px;
  background:
    linear-gradient(145deg, #20245c 0%, #12162e 48%, #090c18 100%);
  box-shadow: var(--shadow), inset 0 0 0 1px rgba(146, 123, 255, 0.28);
  overflow: hidden;
}

.engine-field::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 22% 8%, rgba(111, 92, 255, 0.42), transparent 55%);
}

.engine svg {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  padding: 9%;
}

.signal-arc {
  fill: none;
  stroke: #9b86ff;
  stroke-linecap: round;
  stroke-dasharray: 28 64;
  animation: arc-breathe 7.5s ease-in-out infinite;
}

.signal-arc.far {
  stroke-width: 4.4;
  opacity: 0.72;
  animation-delay: -2.4s;
}

.signal-arc.near {
  stroke-width: 4;
}

.stage-mark,
.stage-copy,
.stage-cta {
  animation: rise 900ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.stage-copy {
  animation-delay: 140ms;
}

.stage-cta {
  animation-delay: 280ms;
}

.section {
  padding: 88px 0;
  border-top: 1px solid var(--line);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
  gap: 24px 40px;
  margin-bottom: 40px;
  align-items: end;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.4rem, 5vw, 4.4rem);
}

.section-head p,
.prose {
  margin: 0;
  color: var(--ivory-dim);
}

.loop {
  display: grid;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--graphite);
}

.loop-step {
  display: grid;
  grid-template-columns: 3.25rem minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 8px 20px;
  align-items: center;
  padding: 18px var(--pad);
  border-bottom: 1px solid var(--line);
}

.loop-step:last-child {
  border-bottom: 0;
}

.loop-cmd {
  min-width: 0;
}

.loop-step code {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 0.92rem;
}

.loop-note {
  color: var(--muted);
  font-size: 0.95rem;
}

.idx {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--indigo);
}

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

.tile,
.card,
.panel {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent 40%), var(--panel);
  transition: border-color 200ms ease, transform 200ms ease;
}

.tile {
  padding: var(--pad);
}

.tile:hover,
.card:hover,
.panel:hover {
  border-color: rgba(62, 224, 255, 0.35);
}

.tile h3,
.card h3 {
  margin: 12px 0 8px;
  font-family: var(--sans);
  font-size: 1.15rem;
  letter-spacing: -0.03em;
  font-weight: 600;
}

.tile p,
.card p {
  margin: 0;
  color: var(--muted);
}

.ico {
  width: 40px;
  height: 40px;
  color: var(--cyan);
}

.cap-list {
  padding: 6px var(--pad);
}

.cap-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px 20px;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.cap-row:last-child {
  border-bottom: 0;
}

.cap-name {
  font-weight: 600;
}

.cap-note {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.92rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid rgba(94, 224, 181, 0.28);
  color: var(--ok);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.pill.warn {
  border-color: rgba(124, 107, 255, 0.4);
  color: #cfc6ff;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.tab {
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ivory-dim);
}

.tab[aria-selected="true"] {
  background: var(--signal);
  color: #061018;
  border-color: transparent;
}

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

.stat {
  padding: var(--pad);
}

.stat b {
  display: block;
  margin: 8px 0 6px;
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  letter-spacing: -0.04em;
  background: var(--signal);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat span {
  color: var(--muted);
  font-size: 0.92rem;
}

.code {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #0a0c12;
  overflow: hidden;
}

.code header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.75rem;
}

pre {
  margin: 0;
  padding: 18px;
  overflow: auto;
  font-family: var(--mono);
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--ivory-dim);
}

.copy-btn {
  min-height: 36px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--ivory);
}

.install-grid,
.doc-grid,
.request-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.card {
  padding: var(--pad);
}

.footnote {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.9rem;
}

.page-hero {
  padding: 88px 0 28px;
}

.page-hero h1 {
  font-size: clamp(2.8rem, 7vw, 5.4rem);
}

.form {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--ivory-dim);
  font-size: 0.92rem;
}

input,
select,
textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: var(--graphite);
  color: var(--ivory);
  font: inherit;
}

textarea {
  min-height: 140px;
  resize: vertical;
}

.request-chip {
  display: inline-flex;
  margin: 0 8px 8px 0;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ivory-dim);
}

.request-chip:hover {
  border-color: var(--cyan);
  color: var(--ivory);
}

.footer {
  border-top: 1px solid var(--line);
  padding: 48px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 28px;
}

.footer h4 {
  margin: 0 0 12px;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.footer ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer a {
  display: inline-block;
  padding: 6px 0;
  color: var(--ivory-dim);
}

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

.footer-end {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
  color: var(--muted);
  font-size: 0.85rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  animation: rise 800ms cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-play-state: paused;
}

[data-reveal].is-in {
  animation-play-state: running;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes arc-breathe {
  0%,
  100% {
    stroke-dashoffset: 0;
    opacity: 0.55;
  }
  50% {
    stroke-dashoffset: -36;
    opacity: 1;
  }
}

@media (max-width: 1024px) {
  .hero-grid,
  .section-head,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .loop-step {
    grid-template-columns: 3.25rem minmax(0, 1fr);
  }

  .loop-note {
    grid-column: 2;
  }
}

@media (max-width: 900px) {
  .nav-toggle {
    display: grid;
    place-items: center;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    left: 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(10, 12, 18, 0.96);
    flex-direction: column;
    align-items: stretch;
  }

  .nav.is-open .nav-links {
    display: flex;
  }

  .hero {
    min-height: 0;
    padding: 36px 0 40px;
  }

  .section {
    padding: 64px 0;
  }
}

@media (max-width: 720px) {
  :root {
    --page-gutter: 16px;
  }

  .matrix,
  .stats,
  .install-grid,
  .doc-grid,
  .request-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}