:root {
  --bg: #f5f5f7;
  --surface: #ffffff;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --line: rgba(0, 0, 0, 0.08);
  --accent: #0a84ff;
  --accent-text: #ffffff;
  --kbd-bg: rgba(0, 0, 0, 0.06);
  --kbd-border: rgba(0, 0, 0, 0.12);
  --code-bg: rgba(0, 0, 0, 0.05);
  --note-bg: #fff8e6;
  --note-line: #f5d78e;
  --mock-bg: rgba(255, 255, 255, 0.82);
  --mock-label: rgba(0, 0, 0, 0.45);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.18), 0 0 0 0.5px rgba(0, 0, 0, 0.12);
  --glow: radial-gradient(60% 50% at 50% 0%, rgba(10, 132, 255, 0.16), transparent 70%);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #111113;
    --surface: #1c1c1e;
    --text: #f5f5f7;
    --muted: #98989d;
    --line: rgba(255, 255, 255, 0.09);
    --kbd-bg: rgba(255, 255, 255, 0.08);
    --kbd-border: rgba(255, 255, 255, 0.16);
    --code-bg: rgba(255, 255, 255, 0.07);
    --note-bg: #2a2417;
    --note-line: #5c4a1e;
    --mock-bg: rgba(44, 44, 46, 0.85);
    --mock-label: rgba(255, 255, 255, 0.45);
    --shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 0 0.5px rgba(255, 255, 255, 0.14);
    --glow: radial-gradient(60% 50% at 50% 0%, rgba(10, 132, 255, 0.22), transparent 70%);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

kbd {
  display: inline-block;
  min-width: 1.6em;
  padding: 0.05em 0.4em;
  border: 1px solid var(--kbd-border);
  border-bottom-width: 2px;
  border-radius: 6px;
  background: var(--kbd-bg);
  font: 600 0.82em/1.5 -apple-system, BlinkMacSystemFont, sans-serif;
  text-align: center;
}

code, pre {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.88em;
}
code { padding: 0.1em 0.35em; border-radius: 5px; background: var(--code-bg); }
pre { margin: 12px 0; padding: 12px 14px; border-radius: 10px; background: var(--code-bg); overflow-x: auto; }
pre code { padding: 0; background: none; }

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px max(16px, calc((100% - 1040px) / 2));
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 8px; color: var(--text); font-weight: 600; font-size: 18px; }
.brand:hover { text-decoration: none; }
.nav nav { display: flex; align-items: center; gap: 20px; font-size: 15px; }
.nav nav a { color: var(--text); }
.nav .nav-cta { padding: 5px 14px; border-radius: 999px; background: var(--accent); color: var(--accent-text); font-weight: 500; }
.nav .nav-cta:hover { text-decoration: none; filter: brightness(1.08); }

main { padding: 0 16px; }
section { max-width: 1040px; margin: 0 auto; scroll-margin-top: 56px; }

/* Hero */
.hero {
  padding: 72px 0 56px;
  text-align: center;
  background: var(--glow);
}
h1 {
  margin: 0 auto 18px;
  max-width: 820px;
  font-size: clamp(34px, 6vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.025em;
}
.lede { margin: 0 auto 28px; max-width: 600px; color: var(--muted); font-size: clamp(18px, 2.4vw, 21px); }
.cta { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 18px;
  font-weight: 600;
  box-shadow: 0 6px 20px rgba(10, 132, 255, 0.35);
}
.button:hover { text-decoration: none; filter: brightness(1.08); }
.meta { margin: 0; color: var(--muted); font-size: 14px; }

/* Launcher mock-up */
.mock {
  max-width: 620px;
  margin: 56px auto 0;
  padding: 0 0 8px;
  border-radius: 16px;
  background: var(--mock-bg);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  box-shadow: var(--shadow);
  text-align: left;
  overflow: hidden;
}
.mock-search {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  color: var(--mock-label);
  font-size: 24px;
}
.mock-search .typed { color: var(--text); font-weight: 300; }
.caret { width: 2px; height: 26px; margin-left: -8px; background: var(--accent); animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .caret { animation: none; } }
.mock-group { padding: 10px 18px 4px; color: var(--mock-label); font-size: 12px; font-weight: 600; }
.mock-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 8px;
  padding: 7px 10px;
  border-radius: 8px;
  font-size: 15px;
}
.mock-row.selected { background: var(--accent); color: #fff; }
.mock-row .hint { margin-left: auto; opacity: 0.8; }
.mock-row .path { margin-left: auto; color: var(--mock-label); font-size: 13px; }
.ico { width: 22px; height: 22px; flex: none; border-radius: 6px; }
.ico-gear { background: linear-gradient(#a1a1a6, #636366); }
.ico-blue { background: linear-gradient(#5ac8fa, #0a84ff); }
.ico-doc { border-radius: 3px; background: linear-gradient(#ffffff, #e5e5ea); box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.15); }

/* Features */
.features, .install { padding: 64px 0; border-top: 1px solid var(--line); }
h2 { margin: 0 0 28px; font-size: clamp(26px, 4vw, 36px); letter-spacing: -0.02em; text-align: center; }
h3 { margin: 0 0 6px; font-size: 18px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid article { padding: 22px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.grid p { margin: 0; color: var(--muted); font-size: 15px; }

.keys { max-width: 620px; margin: 40px auto 0; }
.keys h3 { text-align: center; margin-bottom: 12px; }
.keys table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.keys td { padding: 10px 16px; border-top: 1px solid var(--line); font-size: 15px; }
.keys tr:first-child td { border-top: 0; }
.keys td:first-child { width: 120px; white-space: nowrap; }

/* Install */
.install { max-width: 720px; }
.install ol { margin: 0 0 24px; padding-left: 1.3em; }
.install li { margin-bottom: 8px; }
.note { padding: 18px 20px; border: 1px solid var(--note-line); border-radius: 14px; background: var(--note-bg); }
.note p { margin: 0 0 6px; font-size: 15px; }
.small { color: var(--muted); font-size: 14px; }

footer { padding: 28px 16px 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; text-align: center; }
footer p { margin: 0; }

@media (max-width: 820px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
  .nav nav a:not(.nav-cta) { display: none; }
  .hero { padding-top: 48px; }
  h1 br { display: none; }
  .mock-row .path { display: none; }
  .keys td:first-child { width: 96px; }
}