:root {
  --bg: #0A0A0B;
  --surface: rgba(255,255,255,.035);
  --surface-2: rgba(255,255,255,.06);
  --line: rgba(255,255,255,.08);
  --line-2: rgba(255,255,255,.14);
  --text: #EDEDEF;
  --text-2: #A1A1AA;
  --muted: #71717A;
  --violet: 139, 92, 246;
  --blue: 59, 130, 246;
  --sans: Geist, Inter, -apple-system, system-ui, sans-serif;
  --mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; }
body { margin: 0; background: var(--bg); color: var(--text); font: 18px/1.6 var(--sans); -webkit-font-smoothing: antialiased; letter-spacing: -0.011em; overflow-x: clip; }
a { color: inherit; }
b { font-weight: 600; color: var(--text); }
code { font: 0.86em var(--mono); background: var(--surface-2); border: 1px solid var(--line); padding: 1px 6px; border-radius: 6px; }
section { position: relative; max-width: 1160px; margin: 0 auto; padding: 0 28px; }
h2 { font-size: clamp(36px, 4.6vw, 52px); line-height: 1.08; letter-spacing: -0.04em; font-weight: 600; margin: 0; text-align: center;
  background: linear-gradient(180deg, #FFFFFF 30%, #A1A1AA); -webkit-background-clip: text; background-clip: text; color: transparent; }
h3 { font-size: 21px; line-height: 1.3; font-weight: 600; letter-spacing: -0.022em; margin: 0 0 8px; }
.eyebrow { text-align: center; margin: 0 0 16px; font: 500 13px var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 50px; padding: 0 24px; border-radius: 999px; border: 1px solid var(--line-2); background: transparent; color: var(--text); font: 500 16.5px var(--sans); letter-spacing: -0.01em; text-decoration: none; cursor: pointer; transition: background .2s, border-color .2s, transform .2s, box-shadow .2s; }
.btn:hover { background: var(--surface-2); border-color: rgba(255,255,255,.22); }
.btn.primary { background: #FFFFFF; color: #0A0A0B; border-color: #FFFFFF; box-shadow: 0 0 0 1px rgba(255,255,255,.1), 0 8px 30px rgba(var(--violet), .25); }
.btn.primary:hover { background: #E4E4E7; transform: translateY(-1px); }
.btn.small { height: 36px; padding: 0 16px; font-size: 14.5px; }

/* nav */
.nav { position: sticky; top: 0; z-index: 20; backdrop-filter: saturate(160%) blur(16px); -webkit-backdrop-filter: saturate(160%) blur(16px); background: rgba(10,10,11,.6); border-bottom: 1px solid transparent; transition: border-color .3s, background .3s; }
.nav.scrolled { border-bottom-color: var(--line); background: rgba(10,10,11,.78); }
.nav-in { max-width: 1160px; margin: 0 auto; padding: 14px 28px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 600; text-decoration: none; font-size: 17px; letter-spacing: -0.02em; }
.logo { width: 26px; height: 26px; border-radius: 8px; background: linear-gradient(145deg, #FFFFFF, #C4C4CC); position: relative; box-shadow: 0 0 20px rgba(var(--violet), .35); }
.logo::after { content: ""; position: absolute; left: 10px; top: 7.5px; border-left: 8.5px solid #0A0A0B; border-top: 5.5px solid transparent; border-bottom: 5.5px solid transparent; }
.links { display: flex; align-items: center; gap: 30px; font-size: 15.5px; }
.links a:not(.btn) { text-decoration: none; color: var(--text-2); transition: color .2s; }
.links a:not(.btn):hover { color: var(--text); }

/* hero */
.hero { position: relative; max-width: 1000px; margin: 0 auto; padding: 96px 28px 48px; text-align: center; }
.glow { position: absolute; z-index: -1; left: 50%; top: -120px; width: 1200px; height: 760px; transform: translateX(-50%); pointer-events: none;
  background: radial-gradient(closest-side at 35% 45%, rgba(var(--violet), .32), transparent 70%), radial-gradient(closest-side at 68% 50%, rgba(var(--blue), .22), transparent 70%); filter: blur(30px); }
.grid-bg { position: absolute; z-index: -1; inset: -40px -200px 0; pointer-events: none;
  background-image: radial-gradient(rgba(255,255,255,.13) 1px, transparent 1px); background-size: 28px 28px;
  -webkit-mask-image: radial-gradient(ellipse 60% 70% at 50% 35%, #000 20%, transparent 75%); mask-image: radial-gradient(ellipse 60% 70% at 50% 35%, #000 20%, transparent 75%); }
.badge { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 30px; padding: 7px 16px 7px 13px; border-radius: 999px; font-size: 14.5px; font-weight: 500; color: var(--text-2); background: rgba(255,255,255,.04); border: 1px solid var(--line-2); backdrop-filter: blur(8px); }
.pulse, .live { width: 8px; height: 8px; border-radius: 50%; background: #34D399; box-shadow: 0 0 0 0 rgba(52,211,153,.6); animation: pulse 2.2s infinite; flex: none; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(52,211,153,.55); } 70% { box-shadow: 0 0 0 9px rgba(52,211,153,0); } 100% { box-shadow: 0 0 0 0 rgba(52,211,153,0); } }
.hero h1 { font-size: clamp(48px, 7.2vw, 88px); line-height: 1.0; letter-spacing: -0.052em; font-weight: 600; margin: 0;
  background: linear-gradient(180deg, #FFFFFF 35%, #9C9CA6); -webkit-background-clip: text; background-clip: text; color: transparent; text-wrap: balance; }
.lede { font-size: clamp(18px, 1.6vw, 21px); line-height: 1.55; color: var(--text-2); max-width: 680px; margin: 28px auto 0; text-wrap: pretty; }
.cta { display: flex; gap: 12px; justify-content: center; margin-top: 40px; flex-wrap: wrap; }

/* playground */
.try { max-width: 1340px; padding-top: 24px; text-align: center; }
.chip { display: inline-flex; align-items: center; gap: 10px; text-align: left; margin: 0 0 22px; padding: 8px 16px; border-radius: 999px; font-size: 15px; color: var(--text-2); background: var(--surface); border: 1px solid var(--line); }
.stage { position: relative; }
.stage-glow { position: absolute; z-index: 0; inset: 8% 6% -6%; pointer-events: none; background: radial-gradient(closest-side, rgba(var(--violet), .38), rgba(var(--blue), .16) 55%, transparent); filter: blur(60px); }
.window { position: relative; z-index: 1; border-radius: 18px; overflow: hidden; background: #111113; text-align: left;
  box-shadow: 0 0 0 1px rgba(255,255,255,.1), inset 0 1px 0 rgba(255,255,255,.08), 0 40px 120px rgba(0,0,0,.65), 0 0 80px rgba(var(--violet), .12); }
.window-bar { height: 42px; display: flex; align-items: center; gap: 8px; padding: 0 16px; background: linear-gradient(#1A1A1D, #141416); border-bottom: 1px solid rgba(255,255,255,.07); }
.window-bar i { width: 12px; height: 12px; border-radius: 50%; background: #2E2E33; }
.window-bar i:nth-child(1) { background: #FF5F57; } .window-bar i:nth-child(2) { background: #FEBC2E; } .window-bar i:nth-child(3) { background: #28C840; }
.window-bar span { flex: 1; text-align: center; margin-right: 56px; font-size: 13px; color: var(--muted); }
#playground { display: block; width: 100%; height: 800px; border: 0; background: #F6F6F7; }
.small-screen, .small-note { display: none; }

/* cards */
.card { position: relative; background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02)); border: 1px solid var(--line); border-radius: 20px; padding: 30px; transition: transform .3s ease, border-color .3s; overflow: hidden; }
.card::before { content: ""; position: absolute; left: 24px; right: 24px; top: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(255,255,255,.35), transparent); }
.card:hover { transform: translateY(-3px); border-color: var(--line-2); }
.card p { margin: 0; color: var(--text-2); font-size: 16.5px; line-height: 1.6; }

/* how */
.how { padding-top: 160px; }
.how-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 56px; }
.big-num { display: block; font: 500 15px var(--mono); color: var(--muted); margin-bottom: 44px; letter-spacing: .04em; }

/* install */
.install { padding-top: 160px; scroll-margin-top: 40px; }
.sub { text-align: center; max-width: 680px; margin: 22px auto 0; color: var(--text-2); font-size: 18.5px; }
.sub a { text-decoration-color: rgba(255,255,255,.3); text-underline-offset: 3px; }
.steps { list-style: none; padding: 0; margin: 56px 0 0; display: grid; gap: 18px; border-radius: 24px; transition: box-shadow .4s; }
.install.flash .steps { animation: flash 1.6s ease; }
@keyframes flash { 0%, 35% { box-shadow: 0 0 0 1px rgba(var(--violet), .6), 0 0 60px rgba(var(--violet), .35); } 100% { box-shadow: 0 0 0 0 rgba(var(--violet), 0); } }
.step { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; padding: 40px; border-radius: 24px; border: 1px solid var(--line); background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.015)); }
.step-num { display: inline-flex; width: 34px; height: 34px; border-radius: 50%; align-items: center; justify-content: center; margin-bottom: 20px; font: 600 15px var(--mono); color: #0A0A0B; background: #FFFFFF; box-shadow: 0 0 24px rgba(var(--violet), .45); }
.step h3 { font-size: 26px; letter-spacing: -0.03em; margin-bottom: 10px; }
.step-text > p { margin: 0 0 14px; color: var(--text-2); font-size: 17.5px; }
.step .note { color: var(--muted); font-size: 15.5px; margin: 16px 0 0; }
.copy { display: flex; gap: 14px; align-items: flex-start; background: rgba(0,0,0,.45); border: 1px solid var(--line-2); border-radius: 14px; padding: 16px 16px 16px 18px; }
.copy p { margin: 0; flex: 1; font-size: 16px; line-height: 1.6; color: var(--text); }
.copy.mono { align-items: center; }
.copy.mono p { font: 500 17px var(--mono); }
.copy-btn { flex: none; background: var(--surface-2); }
.copy-btn.done { background: #FFFFFF; color: #0A0A0B; border-color: #FFFFFF; }

/* dark mockups of the Claude app (swap for real screenshots any time) */
.mock { position: relative; min-height: 230px; padding: 30px; border-radius: 18px; display: flex; flex-direction: column; justify-content: center; font-size: 14.5px;
  background: radial-gradient(120% 90% at 50% 0%, rgba(var(--violet), .14), transparent 60%), #0E0E10; border: 1px solid var(--line); }
.m-chat { display: flex; flex-direction: column; gap: 14px; }
.m-bubble { align-self: flex-end; max-width: 88%; background: #232327; border-radius: 14px; padding: 11px 15px; color: var(--text); }
.m-ask { background: #18181B; border: 1px solid var(--line-2); border-radius: 14px; padding: 14px 16px; display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--text-2); }
.m-btns { display: flex; gap: 8px; }
.m-b { border: 1px solid var(--line-2); border-radius: 9px; padding: 5px 13px; font-weight: 500; color: var(--text-2); }
.m-b.on { background: #FFFFFF; color: #0A0A0B; border-color: #FFFFFF; box-shadow: 0 0 0 5px rgba(255,255,255,.08), 0 0 28px rgba(var(--violet), .6); }
.m-prompt { position: relative; background: #18181B; border: 1px solid var(--line-2); border-radius: 18px; padding: 16px; }
.m-input { min-height: 50px; font: 15px var(--mono); color: var(--text); }
.m-input.muted { color: #5A5A63; font-family: var(--sans); }
.caret { display: inline-block; width: 2px; height: 17px; background: var(--text); vertical-align: -3px; margin-left: 2px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.m-row { display: flex; gap: 8px; }
.m-chip { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line-2); border-radius: 9px; padding: 4px 10px; color: var(--muted); font-size: 13px; }
.m-chip.on { color: var(--text); border-color: rgba(255,255,255,.55); box-shadow: 0 0 0 5px rgba(255,255,255,.06), 0 0 24px rgba(var(--violet), .45); }
.m-menu { position: absolute; left: 14px; right: 14px; bottom: calc(100% + 8px); background: #1F1F23; border: 1px solid var(--line-2); border-radius: 12px; padding: 11px 14px; box-shadow: 0 16px 40px rgba(0,0,0,.5); display: flex; gap: 12px; align-items: baseline; }
.m-menu b { font: 500 14.5px var(--mono); }
.m-menu span { color: var(--muted); font-size: 13.5px; }
.step:last-child .mock { padding-top: 84px; }

/* first time */
.first { padding-top: 160px; }
.first-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 56px; }
.first .card { padding: 26px; }
.first h3 { font-size: 19px; }
.first .card p { font-size: 15.5px; }
.ico { width: 26px; height: 26px; margin-bottom: 26px; fill: none; stroke: var(--text); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; filter: drop-shadow(0 0 10px rgba(var(--violet), .6)); }

/* faq */
.faq { max-width: 820px; padding-top: 160px; }
.faq-list { margin-top: 48px; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 24px 2px; font-size: 19px; font-weight: 500; letter-spacing: -0.018em; transition: color .2s; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: #FFFFFF; }
.faq summary::after { content: "+"; flex: none; width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--line-2); display: flex; align-items: center; justify-content: center; color: var(--text-2); font-size: 18px; font-weight: 400; transition: transform .3s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: -6px 0 24px; padding-right: 56px; color: var(--text-2); font-size: 17px; }
.faq details a { text-underline-offset: 3px; text-decoration-color: rgba(255,255,255,.3); }

/* final cta */
.final { margin-top: 170px; padding: 110px 28px; text-align: center; border-radius: 32px; max-width: 1104px; border: 1px solid var(--line); overflow: hidden;
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.01)); }
.final-glow { position: absolute; inset: 0; z-index: -1; background: radial-gradient(60% 80% at 50% 110%, rgba(var(--violet), .45), transparent 70%), radial-gradient(40% 60% at 80% 100%, rgba(var(--blue), .25), transparent 70%); }
.final p { color: var(--text-2); font-size: 19px; margin: 18px 0 0; }
.final .cta { margin-top: 36px; }

.foot { max-width: 1160px; margin: 0 auto; padding: 56px 28px 64px; color: var(--muted); font-size: 15px; text-align: center; }
.foot a { color: var(--text-2); text-underline-offset: 3px; text-decoration-color: rgba(255,255,255,.2); }
.foot a:hover { color: var(--text); }

/* entrance */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
.hero > *:not(.glow):not(.grid-bg), .try { animation: rise 1s cubic-bezier(.2,.7,.2,1) both; }
.hero h1 { animation-delay: .06s; } .hero .lede { animation-delay: .14s; } .hero .cta { animation-delay: .22s; } .try { animation-delay: .32s; }
@keyframes rise { from { opacity: 0; transform: translateY(18px); } }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero > *, .try { animation: none; }
  .pulse, .live, .caret { animation: none; }
  html { scroll-behavior: auto; }
}

@media (max-width: 1000px) {
  .first-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  body { font-size: 17px; }
  .links a:not(.btn) { display: none; }
  .hero { padding: 72px 22px 40px; }
  .hero h1 { font-size: 44px; }
  section { padding: 0 20px; }
  #playground { display: none; }
  .small-screen { display: block; width: 100%; }
  .chip { border-radius: 16px; font-size: 14.5px; }
  .small-note { display: block; color: var(--muted); font-size: 15px; margin-top: 18px; }
  .how, .install, .first, .faq { padding-top: 110px; }
  .how-grid, .step { grid-template-columns: 1fr; }
  .step { padding: 26px; gap: 26px; }
  .final { margin: 120px 20px 0; padding: 72px 22px; }
}
@media (max-width: 560px) {
  .first-grid { grid-template-columns: 1fr; }
  .cta .btn { width: 100%; }
}