:root {
  color-scheme: dark;
  --ink: #f4f7fb; --ink-soft: #b7c2d0; --ink-muted: #788697;
  --void: #080b10; --surface: #0d1219; --surface-raised: #111923; --surface-bright: #151f2b;
  --stroke: #253142;
  --stroke-soft: rgba(118, 144, 173, 0.17);
  --cyan: #67ddf6; --cyan-rgb: 103, 221, 246;
  --lime: #bdf875; --lime-rgb: 189, 248, 117;
  --orange: #ffac72; --orange-rgb: 255, 172, 114; --purple: #c5a8ff; --danger: #ff8b91;
  --font-sans: "Avenir Next", "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", "Cascadia Code", "Roboto Mono", Consolas, monospace;
  --radius-sm: 10px; --radius-md: 18px; --radius-lg: 28px;
  --shadow-deep: 0 30px 90px rgba(0, 0, 0, 0.45);
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}
body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 8% 2%, rgba(var(--cyan-rgb), 0.075), transparent 25rem),
    radial-gradient(circle at 92% 10%, rgba(var(--lime-rgb), 0.055), transparent 26rem),
    var(--void);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(rgba(130, 154, 180, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(130, 154, 180, 0.028) 1px, transparent 1px);
  background-size: 48px 48px;
  content: "";
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, black, transparent 65%);
  mask-image: linear-gradient(to bottom, black, transparent 65%);
}
::selection {
  background: rgba(var(--cyan-rgb), 0.24);
  color: var(--ink);
}
a {
  color: inherit;
  text-decoration: none;
}
button,
select,
textarea {
  color: inherit;
  font: inherit;
}
button,
select {
  cursor: pointer;
}
button:disabled,
select:disabled {
  cursor: not-allowed;
  opacity: 0.52;
}
img,
svg {
  display: block;
}
h1,
h2,
h3,
p {
  margin-top: 0;
}
h1,
h2,
h3 {
  text-wrap: balance;
}
code,
kbd,
pre,
textarea {
  font-family: var(--font-mono);
}
code {
  font-size: 0.88em;
}
.section-shell {
  width: min(100% - 48px, 1240px);
  margin-inline: auto;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.8rem;
  left: 0.8rem;
  padding: 0.65rem 0.9rem;
  transform: translateY(-160%);
  border-radius: var(--radius-sm);
  background: var(--cyan);
  color: var(--void);
  font-weight: 800;
  transition: transform 160ms ease;
}
.skip-link:focus {
  transform: translateY(0);
}
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}
.gradient-text {
  background: linear-gradient(105deg, var(--cyan) 8%, #93e8df 48%, var(--lime) 92%);
  background-clip: text;
  color: transparent;
  -webkit-background-clip: text;
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1.3rem;
  color: var(--ink-soft);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}
.eyebrow > span {
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--lime));
  box-shadow: 0 0 10px rgba(var(--cyan-rgb), 0.45);
}
.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.7rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 12px;
  font-size: 0.88rem;
  font-weight: 750;
  transition: border-color 180ms ease, background 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}
.button:hover {
  transform: translateY(-2px);
}
.button svg,
.text-link svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}
.button-primary {
  background: linear-gradient(112deg, var(--cyan), #8be8dc 60%, var(--lime));
  box-shadow: 0 12px 35px rgba(var(--cyan-rgb), 0.16);
  color: #071013;
}
.button-primary:hover {
  box-shadow: 0 16px 42px rgba(var(--cyan-rgb), 0.26);
}
.button-quiet {
  border-color: var(--stroke);
  background: rgba(18, 27, 38, 0.6);
  color: var(--ink-soft);
}
.button-quiet:hover {
  border-color: #40536a;
  background: var(--surface-bright);
  color: var(--ink);
}
[data-reveal] {
  opacity: 1;
}
.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms cubic-bezier(0.22, 1, 0.36, 1), transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}
.js [data-reveal][data-visible="true"] {
  opacity: 1;
  transform: translateY(0);
}
.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  border-bottom: 1px solid transparent;
  background: #080b10;
  color: #f4f7fb;
  line-height: 1.6;
  backdrop-filter: blur(18px) saturate(140%);
}
.nav-shell {
  display: flex;
  width: min(100% - 48px, 1240px);
  min-height: 74px;
  align-items: center;
  justify-content: space-between;
  margin-inline: auto;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: #f4f7fb;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.04em;
}
.brand img {
  filter: drop-shadow(0 7px 10px rgba(0, 0, 0, 0.4));
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  color: var(--ink-soft);
  font-size: 0.82rem;
  font-weight: 650;
}
.nav-menu a,
.nav-docs summary {
  color: #b7c2d0;
  transition: color 160ms ease;
}
.nav-menu a:hover,
.nav-docs summary:hover,
.nav-docs details[open] summary {
  color: var(--ink);
}
.nav-docs {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.nav-docs details {
  position: relative;
}
.nav-docs summary {
  display: flex;
  align-items: center;
  padding: 0.2rem;
  cursor: pointer;
  list-style: none;
}
.nav-docs summary::-webkit-details-marker {
  display: none;
}
.nav-docs summary:focus-visible {
  border-radius: 4px;
  outline: 2px solid var(--cyan);
  outline-offset: 5px;
}
.nav-docs summary svg {
  width: 12px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
  transition: transform 160ms ease;
}
.nav-docs details[open] summary svg {
  transform: rotate(180deg);
}
.nav-submenu {
  position: absolute;
  z-index: 60;
  top: calc(100% + 0.85rem);
  right: 0;
  display: grid;
  min-width: 190px;
  padding: 0.45rem;
  border: 1px solid var(--stroke);
  border-radius: 12px;
  background: rgba(13, 18, 25, 0.98);
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.4);
}
.nav-submenu a {
  padding: 0.58rem 0.72rem;
  border-radius: 8px;
  white-space: nowrap;
}
.nav-submenu a:hover {
  color: var(--cyan);
  background: rgba(var(--cyan-rgb), 0.08);
}
.nav-github {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--stroke);
  border-radius: 9px;
  background: rgba(18, 27, 38, 0.7);
}
.nav-github svg {
  width: 15px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 1.5;
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 11px 10px;
  border: 1px solid var(--stroke);
  border-radius: 9px;
  background: #0d1219;
}
.nav-toggle span:not(.sr-only) {
  display: block;
  width: 100%;
  height: 1px;
  margin: 5px 0;
  background: var(--ink);
  transition: transform 180ms ease;
}