:root {
  color-scheme: dark;
  --bg: #07100e;
  --bg-raised: #0b1513;
  --panel: #0e1c18;
  --panel-soft: #12241f;
  --panel-glass: rgba(14, 28, 24, 0.76);
  --text: #eef9f5;
  --muted: #9db5ad;
  --subtle: #6f8981;
  --line: #243b34;
  --line-strong: #355148;
  --accent: #77f2cc;
  --accent-strong: #27d5a2;
  --accent-soft: rgba(119, 242, 204, 0.12);
  --warm: #f4c86a;
  --warm-soft: rgba(244, 200, 106, 0.13);
  --danger: #ff8c82;
  --blue: #80bfff;
  --code-bg: #050b09;
  --code-text: #d7e7e1;
  --code-line: #1b2c27;
  --code-muted: #789087;
  --code-copy: #9cb3aa;
  --code-command: #77f2cc;
  --code-flag: #80bfff;
  --code-value: #f4c86a;
  --code-danger: #ff8c82;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --content: 1180px;
  --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f8f5;
  --bg-raised: #ffffff;
  --panel: #ffffff;
  --panel-soft: #ecf3ef;
  --panel-glass: rgba(255, 255, 255, 0.82);
  --text: #10201b;
  --muted: #4f675f;
  --subtle: #72877f;
  --line: #d7e2dc;
  --line-strong: #bdcec5;
  --accent: #087f62;
  --accent-strong: #05674f;
  --accent-soft: rgba(8, 127, 98, 0.09);
  --warm: #9c6400;
  --warm-soft: rgba(156, 100, 0, 0.09);
  --danger: #b43129;
  --blue: #1c62a8;
  --code-bg: #edf3ef;
  --code-text: #162820;
  --code-line: #c9d8d1;
  --code-muted: #5d746b;
  --code-copy: #49645a;
  --code-command: #056b52;
  --code-flag: #185f91;
  --code-value: #875900;
  --code-danger: #a72d27;
  --shadow: 0 24px 70px rgba(36, 63, 52, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 12% -10%, rgba(39, 213, 162, 0.14), transparent 34rem),
    radial-gradient(circle at 92% 0%, rgba(244, 200, 106, 0.08), transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--accent); color: #07100e; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--accent); }
img, svg { max-width: 100%; }
button, input { font: inherit; }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  transform: translateY(-140%);
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--accent);
  color: #07100e;
  font-weight: 750;
}
.skip-link:focus { transform: none; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid transparent;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(18px);
}
.site-header.is-scrolled { border-bottom-color: var(--line); }
.header-inner {
  width: min(calc(100% - 40px), var(--content));
  height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: max-content;
  color: var(--text);
  font-weight: 780;
  letter-spacing: -0.02em;
  text-decoration: none;
}
.brand img { width: 110px; height: auto; flex: none; }
html[data-theme="light"] .brand img { filter: invert(1); }
.brand small {
  display: block;
  color: var(--subtle);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.13em;
  line-height: 1;
  text-transform: uppercase;
}
.brand-title {
  display: grid;
  gap: 3px;
  padding-left: 11px;
  border-left: 1px solid var(--line-strong);
  font-size: 0;
  line-height: 1;
}
.brand-title::before { content: "Lens"; font-size: 16px; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}
.site-nav a {
  padding: 8px 11px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}
.site-nav a:hover, .site-nav a[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--text);
}
.header-actions { display: flex; align-items: center; gap: 8px; }
.icon-button {
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-raised);
  color: var(--muted);
  cursor: pointer;
}
.icon-button:hover { border-color: var(--line-strong); color: var(--text); }
.menu-button { display: none; }

.container { width: min(calc(100% - 40px), var(--content)); margin: 0 auto; }
.narrow { width: min(calc(100% - 40px), 820px); margin: 0 auto; }

.hero {
  position: relative;
  padding: 96px 0 80px;
  overflow: clip;
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(520px, 1.1fr);
  align-items: center;
  gap: 72px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.eyebrow before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 5px var(--accent-soft);
}
h1, h2, h3 { margin: 0; color: var(--text); line-height: 1.08; letter-spacing: -0.035em; }
h1 { max-width: 760px; font-size: clamp(3rem, 7vw, 6.4rem); }
h2 { font-size: clamp(2rem, 4vw, 3.8rem); }
h3 { font-size: 1.25rem; letter-spacing: -0.02em; }
.hero-copy > p {
  max-width: 670px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.28rem);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-raised);
  color: var(--text);
  font-size: 14px;
  font-weight: 760;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}