:root {
  --violet: #6d4aff;
  --violet-deep: #4527c9;
  --ink: #1b1530;
  --muted: #5d5873;
  --bg: #f6f5fb;
  --card: #ffffff;
  --line: #e7e4f2;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--violet); }
h1, h2, h3 { font-family: 'Google Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; letter-spacing: -0.015em; }

/* nav */
.nav {
  position: absolute; inset: 0 0 auto 0; z-index: 2;
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1120px; margin: 0 auto; padding: 18px 24px; color: #fff;
}
.brand { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-weight: 650; }
.brand img { border-radius: 7px; box-shadow: 0 2px 8px rgba(0,0,0,.25); }
.nav nav { display: flex; gap: 22px; }
.nav nav a { color: rgba(255,255,255,.85); text-decoration: none; font-size: 15px; }
.nav nav a:hover { color: #fff; }

/* hero */
.hero {
  background: radial-gradient(1200px 500px at 85% -10%, #9a83ff 0%, transparent 60%),
              linear-gradient(160deg, #7b5cff 0%, #5a36e8 55%, var(--violet-deep) 100%);
  color: #fff;
  padding: 140px 24px 120px;
}
.hero-inner { max-width: 1120px; margin: 0 auto; }
.eyebrow { font-weight: 600; letter-spacing: .04em; opacity: .8; margin: 0 0 14px; }
.hero h1 { font-size: clamp(40px, 6.2vw, 72px); line-height: 1.04; margin: 0 0 22px; font-weight: 700; }
.lede { font-size: clamp(17px, 1.6vw, 20px); max-width: 620px; opacity: .92; margin: 0 0 32px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.cta {
  display: inline-block; padding: 14px 22px; border-radius: 12px; font-weight: 650; text-decoration: none;
  background: #fff; color: var(--violet-deep); box-shadow: 0 8px 24px rgba(20,8,80,.25);
  transition: transform .15s;
}
.cta:hover { transform: translateY(-1px); }
.cta.ghost { background: rgba(255,255,255,.14); color: #fff; box-shadow: none; }
.cta.soon { background: rgba(255,255,255,.9); color: var(--muted); cursor: default; transform: none; }
.fine { margin: 18px 0 0; font-size: 14px; opacity: .75; }

/* demo */
.demo { max-width: 1120px; margin: -64px auto 0; padding: 0 24px; position: relative; }
.demo-head {
  display: flex; align-items: end; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  background: var(--card); border-radius: 18px 18px 0 0; padding: 26px 28px 10px; border: 1px solid var(--line); border-bottom: 0;
}
.demo-head h2 { margin: 0 0 4px; font-size: 22px; }
.demo-head p { margin: 0; color: var(--muted); }
.toggle { display: flex; align-items: center; gap: 10px; cursor: pointer; font-weight: 600; user-select: none; }
.toggle input { position: absolute; opacity: 0; }
.toggle .track { width: 42px; height: 24px; border-radius: 12px; background: #cfcbe0; position: relative; transition: background .15s; flex: none; }
.toggle .track::after { content: ''; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px; border-radius: 50%; background: #fff; transition: transform .15s; box-shadow: 0 1px 3px rgba(0,0,0,.3); }
.toggle input:checked + .track { background: var(--violet); }
.toggle input:checked + .track::after { transform: translateX(18px); }
.toggle input:focus-visible + .track { outline: 2px solid var(--violet); outline-offset: 2px; }

.card {
  background: var(--card); border: 1px solid var(--line); border-top: 0; border-radius: 0 0 18px 18px;
  padding: 8px 28px 18px; box-shadow: 0 30px 60px -30px rgba(40,20,120,.35);
  font: 14px/1.45 Roboto, Arial, sans-serif; color: #1f1f1f;
}
.subject { font: 400 20px 'Google Sans', Roboto, Arial, sans-serif; padding: 10px 0 12px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.subject .tag { font-size: 12px; background: #e8eaed; border-radius: 4px; padding: 1px 6px; color: #444; }
.subject .stat { margin-left: auto; font: 600 13px system-ui, sans-serif; color: var(--violet-deep); background: #efeaff; border-radius: 999px; padding: 4px 10px; }
.subject .stat:empty { display: none; }
.gs { display: grid; grid-template-columns: 40px 1fr; column-gap: 12px; padding: 14px 0; border-top: 1px solid #eceff1; }
.avatar { width: 40px; height: 40px; border-radius: 50%; color: #fff; display: grid; place-items: center; font-weight: 600; }
.meta { display: flex; justify-content: space-between; gap: 8px; }
.gD { font-weight: 700; }
.when { color: #5f6368; font-size: 12px; white-space: nowrap; }
.to { color: #5f6368; font-size: 12px; margin-bottom: 8px; }
.a3s { grid-column: 2; min-width: 0; overflow-wrap: anywhere; }
.a3s p.MsoNormal { margin: 0; }
.a3s .fineprint { font-size: 8pt; color: gray; }
.a3s blockquote { margin: 0 0 0 .8ex; border-left: 1px solid #ccc; padding-left: 1ex; }
.logo { display: inline-block; width: 110px; height: 32px; border-radius: 6px; background: linear-gradient(90deg,#0f9d58,#34a853); color: #fff; font: 700 13px/32px Arial; text-align: center; }
.social { display: inline-block; width: 18px; height: 18px; border-radius: 4px; background: #0a66c2; margin-right: 4px; vertical-align: middle; }

/* features */
.how { max-width: 1120px; margin: 0 auto; padding: 96px 24px 40px; }
.how h2, .privacy-band h2 { font-size: clamp(28px, 3.4vw, 40px); margin: 0 0 28px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid article { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.grid h3 { margin: 10px 0 6px; font-size: 18px; }
.grid p { margin: 0; color: var(--muted); }
.ico { font-size: 24px; }

/* privacy band */
.privacy-band { padding: 40px 24px 96px; }
.privacy-band > div {
  max-width: 1120px; margin: 0 auto; border-radius: 22px; padding: 44px;
  background: linear-gradient(160deg, #241a4d, #15102e); color: #f1eefc;
}
.privacy-band p { max-width: 720px; font-size: 18px; opacity: .9; margin: 0 0 14px; }
.privacy-band .small { font-size: 15px; opacity: .75; }
.privacy-band a { color: #c9bbff; }

.foot { max-width: 1120px; margin: 0 auto; padding: 28px 24px 48px; display: flex; gap: 24px; flex-wrap: wrap; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); }
.foot a { color: var(--muted); }

/* privacy page */
.doc-hero { background: linear-gradient(160deg, #7b5cff 0%, #5a36e8 55%, var(--violet-deep) 100%); color: #fff; padding: 120px 24px 56px; }
.doc-hero h1 { max-width: 760px; margin: 0 auto; font-size: clamp(32px, 4.6vw, 48px); }
.doc-hero p { max-width: 760px; margin: 8px auto 0; opacity: .8; }
.doc { max-width: 760px; margin: 0 auto; padding: 40px 24px 72px; }
.doc h2 { font-size: 22px; margin: 36px 0 10px; }
.doc li { margin: 6px 0; }
.doc code { background: #ece8fb; padding: 1px 5px; border-radius: 4px; font-size: 14px; }

@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .nav nav { gap: 14px; }
  .nav nav a:not([href="/privacy"]) { display: none; }
  .hero { padding: 110px 16px 96px; }
  .demo, .how, .privacy-band { padding-left: 16px; padding-right: 16px; }
  .demo-head, .card { padding-left: 16px; padding-right: 16px; }
  .gs { grid-template-columns: 32px 1fr; column-gap: 10px; }
  .avatar { width: 32px; height: 32px; font-size: 13px; }
  .meta { flex-direction: column; gap: 0; }
  .grid { grid-template-columns: 1fr; }
  .privacy-band > div { padding: 28px 22px; }
}