:root {
  --bg0: #12151a;
  --bg1: #1a1f27;
  --bg2: #242b35;
  --steel: #c5ccd6;
  --steel-dim: #8b949e;
  --ink: #eef1f5;
  --muted: #9aa3ad;
  --accent: #cd553e;
  --accent-soft: #e07a66;
  --line: rgba(197, 204, 214, 0.14);
  --font-display: "Syne", "Segoe UI", sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.55;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(205, 85, 62, 0.18), transparent 55%),
    radial-gradient(900px 500px at -10% 30%, rgba(140, 160, 180, 0.08), transparent 50%),
    linear-gradient(165deg, var(--bg0), var(--bg1) 45%, #151920);
  background-attachment: fixed;
}

a {
  color: var(--accent-soft);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: #f0a090;
}

.wrap {
  width: min(1080px, calc(100% - 2.5rem));
  margin-inline: auto;
}

/* —— Nav —— */
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand img {
  width: 2rem;
  height: 2rem;
}

.brand span {
  font-size: 1.15rem;
}

.nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.95rem;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
}

.nav a:hover {
  color: var(--ink);
}

/* —— Hero —— */
.hero {
  position: relative;
  display: grid;
  align-items: center;
  padding: 1.5rem 0 2.5rem;
  overflow: visible;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
}

.hero .sub {
  margin: 0.55rem 0 0.85rem;
  font-family: var(--font-body);
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1.35;
  color: var(--steel);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.75rem 1.2rem;
  border-radius: 0.35rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  line-height: 1.3;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.lede {
  margin: 0 0 1.75rem;
  max-width: 32rem;
  color: var(--muted);
  font-size: 1.15rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-downloads {
  margin-top: 1.5rem;
  max-width: 36rem;
  animation: rise 0.7s ease both;
  animation-delay: 0.2s;
}

.dl-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
}

.dl-os {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 0.85rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  background: rgba(26, 31, 39, 0.55);
}

.dl-os-head {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.95rem;
}

.dl-os-head img {
  width: 1.25rem;
  height: 1.25rem;
  opacity: 0.92;
}

.dl-arch {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.dl-arch a {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.55rem;
  border-radius: 0.25rem;
  border: 1px solid var(--line);
  color: var(--steel);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  text-decoration: none;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.dl-arch a:hover {
  color: var(--ink);
  border-color: var(--steel-dim);
  background: rgba(205, 85, 62, 0.12);
}

.hero-install {
  margin-top: 1.75rem;
  max-width: 36rem;
  animation: rise 0.7s ease both;
  animation-delay: 0.22s;
}

.hero-install .cmd-label {
  margin: 0 0 0.45rem;
  color: var(--steel-dim);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.hero-install pre {
  margin: 0;
}

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

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

.btn-primary:hover {
  background: #b84834;
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.btn-ghost:hover {
  border-color: var(--steel-dim);
  color: var(--ink);
}

.hero-visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 22rem;
}

.blade {
  width: min(22rem, 70vw);
  height: auto;
  filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.4));
  animation: spin 64s linear infinite;
}

.blade-ring {
  position: absolute;
  inset: 10%;
  border: 1px solid var(--line);
  border-radius: 50%;
  animation: pulse 5s ease-in-out infinite;
  pointer-events: none;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.35;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(1.03);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-copy > * {
  animation: rise 0.7s ease both;
}

.hero-copy > *:nth-child(2) {
  animation-delay: 0.08s;
}

.hero-copy > *:nth-child(3) {
  animation-delay: 0.16s;
}

/* —— Sections —— */
.section {
  padding: 3.5rem 0;
  border-top: 1px solid var(--line);
}

.section h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.75rem;
  letter-spacing: -0.02em;
}

.section p {
  margin: 0 0 1rem;
  color: var(--muted);
  max-width: 40rem;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 1.75rem;
}

.feature {
  padding: 1.1rem 0;
  border-top: 2px solid var(--accent);
}

.feature h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
}

.feature p {
  margin: 0;
  font-size: 0.95rem;
}

pre,
code {
  font-family: var(--font-mono);
}

.section .cmd-label {
  margin: 1.75rem 0 0;
  color: var(--steel);
  font-size: 0.95rem;
}

.section .cmd-label + pre {
  margin-top: 0.55rem;
}


/* —— Docs layout —— */
.docs-shell {
  display: grid;
  grid-template-columns: 14rem 1fr;
  gap: 2rem;
  padding: 1.5rem 0 4rem;
}

.docs-nav {
  position: sticky;
  top: 1rem;
  align-self: start;
  padding: 0.5rem 0;
  font-size: 0.92rem;
}

.docs-nav a {
  display: block;
  padding: 0.35rem 0;
  color: var(--muted);
  text-decoration: none;
}

.docs-nav a:hover,
.docs-nav a[aria-current="page"] {
  color: var(--ink);
}

.docs-nav .group {
  margin: 1rem 0 0.35rem;
  color: var(--steel-dim);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.docs-body h1 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
}

.docs-body h2 {
  margin: 2rem 0 0.6rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
}

.docs-body h3 {
  margin: 1.4rem 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.docs-body p,
.docs-body li {
  color: var(--muted);
}

.docs-body ul {
  padding-left: 1.2rem;
}

.docs-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.92rem;
}

.docs-body th,
.docs-body td {
  border-bottom: 1px solid var(--line);
  padding: 0.55rem 0.4rem;
  text-align: left;
  vertical-align: top;
}

.docs-body th {
  color: var(--steel);
  font-weight: 600;
}

.docs-body td {
  color: var(--muted);
}

.agent-note {
  margin: 1rem 0 1.5rem;
  padding: 0.85rem 1rem;
  border-left: 3px solid var(--accent);
  background: rgba(205, 85, 62, 0.08);
  color: var(--steel);
  font-size: 0.95rem;
}

/* —— Footer —— */
.foot {
  border-top: 1px solid var(--line);
  padding: 1.75rem 0 2.5rem;
}

.powered {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.powered-by {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
}

.powered-by:hover {
  color: var(--ink);
}

.powered-by img {
  height: 1.35rem;
  width: auto;
}

.foot-meta {
  color: var(--steel-dim);
  font-size: 0.85rem;
}

@media (max-width: 860px) {
  .hero-grid,
  .features,
  .docs-shell,
  .dl-grid {
    grid-template-columns: 1fr;
  }

  .docs-nav {
    position: static;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
  }

  .docs-nav .group {
    width: 100%;
    margin-top: 0.25rem;
  }

  .hero {
    min-height: auto;
    padding-top: 1rem;
  }

  .hero-visual {
    order: -1;
    min-height: 14rem;
  }

  .blade {
    width: min(16rem, 60vw);
  }
}