:root {
  color-scheme: dark;
  --page: #070812;
  --surface: #101222;
  --surface-strong: #17192d;
  --line: #30295a;
  --text: #f7f4ff;
  --muted: #b9bcd4;
  --violet: #a96cff;
  --magenta: #ff5ccd;
  --cyan: #55dcff;
  --max: 1200px;
}

* { box-sizing: border-box; }

html { overflow-x: clip; scroll-behavior: smooth; }

body {
  overflow-x: clip;
  margin: 0;
  background:
    radial-gradient(circle at 72% 10%, rgba(85,220,255,.055), transparent 24%),
    radial-gradient(circle at 88% 34%, rgba(255,79,216,.045), transparent 28%),
    var(--page);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.skip-link {
  position: fixed;
  z-index: 20;
  left: 16px;
  top: -80px;
  padding: 10px 16px;
  background: var(--text);
  color: var(--page);
  border-radius: 8px;
}
.skip-link:focus { top: 16px; }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  width: min(calc(100% - 48px), 1240px);
  min-height: 80px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 32px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  background: rgba(7,8,18,.82);
  box-shadow: 0 1px 0 rgba(255,255,255,.02);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 18px; font-weight: 800; letter-spacing: -.02em; }
.brand img { border-radius: 10px; box-shadow: 0 8px 26px rgba(169,108,255,.2); }
.site-header nav { display: flex; gap: 32px; color: var(--muted); font-size: 14px; font-weight: 650; }
.site-header nav a:hover, footer a:hover, .text-link:hover { color: var(--cyan); }
.site-header > .button { justify-self: end; }

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .01em;
  transition: transform .18s ease, background-color .18s ease, border-color .18s ease;
}
.button:hover { transform: translateY(-2px); }
.button:focus-visible, nav a:focus-visible, .text-link:focus-visible, footer a:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; }
.button-small { min-height: 42px; padding: 0 18px; border-color: #51438e; background: #17142c; }
.button-small:hover { background: #221d40; }
.button-primary { color: #080913; background: var(--cyan); box-shadow: 0 12px 34px rgba(85,220,255,.2); }
.button-primary:hover { background: #8ae8ff; }
.button-secondary { border-color: #54478e; background: #17142c; }
.button-secondary:hover { border-color: var(--violet); background: #211b3b; }

.hero {
  width: min(calc(100% - 48px), 1240px);
  min-height: 550px;
  margin: 0 auto;
  padding: 56px 0 36px;
  display: grid;
  grid-template-columns: minmax(420px, .84fr) minmax(0, 1.16fr);
  gap: 56px;
  align-items: start;
}

.eyebrow { margin: 0 0 16px; color: var(--cyan); font-size: 13px; font-weight: 850; letter-spacing: .13em; text-transform: uppercase; }
.hero .eyebrow span { display: inline-block; width: 25px; height: 2px; margin: 0 10px 4px 0; background: var(--cyan); }
h1, h2, h3, p { text-wrap: pretty; }
h1 { margin: 0; font-size: clamp(56px, 5.25vw, 76px); line-height: .98; letter-spacing: -.045em; font-weight: 900; }
h1 .headline-line { display: inline-block; white-space: nowrap; }
h1 em { display: inline-block; color: var(--magenta); font-style: normal; text-shadow: 0 0 30px rgba(255,92,205,.16); }
.hero-lead { max-width: 520px; margin: 28px 0 0; color: #c3c6da; font-size: clamp(17px, 1.4vw, 19px); line-height: 1.78; }
.hero-actions { margin-top: 36px; display: flex; align-items: center; gap: 26px; }
.text-link { color: #d7d3e7; font-size: 14px; font-weight: 750; }
.hero-note { max-width: 520px; margin: 20px 0 0; color: #9fa4be; font-size: 13px; line-height: 1.65; }

.product-stage { position: relative; margin: 0; padding-top: 6px; }
.screen-shell { overflow: hidden; border: 1px solid #57488d; border-radius: 18px; background: #090a13; box-shadow: 0 30px 92px rgba(0,0,0,.56), 0 0 52px rgba(85,220,255,.10), 0 0 72px rgba(169,108,255,.08); }
.screen-shell img { width: 100%; height: auto; aspect-ratio: 16/9; object-fit: contain; filter: brightness(1.12) contrast(1.06) saturate(1.08); }

.proof-strip {
  width: min(calc(100% - 48px), 1240px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  overflow: hidden;
  border: 1px solid rgba(82,73,133,.65);
  border-radius: 14px;
  background: rgba(14,16,31,.78);
  box-shadow: 0 20px 50px rgba(0,0,0,.22);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.proof-strip p { position: relative; margin: 0; min-height: 88px; padding: 19px 28px; display: grid; grid-template-columns: auto 1fr; column-gap: 14px; align-content: center; border-right: 1px solid var(--line); }
.proof-strip p::before { content: ""; position: absolute; inset: 0 0 auto; height: 3px; background: var(--cyan); }
.proof-strip p:nth-child(2)::before { background: var(--violet); }
.proof-strip p:nth-child(3)::before { background: var(--magenta); }
.proof-strip p:last-child { border-right: 0; }
.proof-strip strong { align-self: end; font-size: 15px; }
.proof-strip span { color: var(--muted); font-size: 12px; }
.proof-strip .proof-index { grid-row: 1 / 3; align-self: center; color: #69708f; font: 800 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }

.section { width: min(calc(100% - 48px), 1240px); margin: 0 auto; padding: 104px 0; }
.section-heading { max-width: 700px; }
h2 { margin: 0; font-size: clamp(34px, 4vw, 56px); line-height: 1.15; letter-spacing: -.055em; }
.section-title-line { display: inline-block; white-space: nowrap; }
.modes { border-top: 1px solid rgba(255,255,255,.08); }
.modes-copy { max-width: 760px; }
.mode-cards { margin-top: 48px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.mode-card { position: relative; overflow: hidden; min-height: 238px; padding: 42px; display: flex; align-items: center; background: radial-gradient(circle at 92% 8%, rgba(85,220,255,.12), transparent 34%), linear-gradient(120deg, rgba(18,21,39,.98), rgba(13,15,29,.92)); border: 1px solid #33435f; border-radius: 20px; box-shadow: 0 24px 70px rgba(0,0,0,.24); }
.mode-card::before { content: ""; position: absolute; inset: 0 0 auto; height: 3px; background: var(--cyan); }
.mode-card:nth-child(2) { background: radial-gradient(circle at 92% 8%, rgba(255,92,205,.12), transparent 34%), linear-gradient(120deg, rgba(20,18,39,.98), rgba(14,13,28,.92)); border-color: #4a355c; }
.mode-card:nth-child(2)::before { background: var(--magenta); }
.mode-card h3 { margin: 0 0 14px; color: var(--text); font-size: clamp(30px, 3vw, 42px); line-height: 1; letter-spacing: -.045em; }
.mode-card:first-child h3 { color: var(--cyan); }
.mode-card:nth-child(2) h3 { color: var(--magenta); }
.mode-card .mode-value { max-width: 450px; margin: 0; color: #d2d5e5; font-size: clamp(18px, 1.7vw, 22px); font-weight: 650; line-height: 1.55; letter-spacing: -.02em; }

.final-cta { min-height: 260px; padding: 60px 64px; display: grid; grid-template-columns: 96px minmax(0,1fr) 270px; align-items: center; gap: 36px; background: radial-gradient(circle at 92% 10%, rgba(255,92,205,.13), transparent 30%), linear-gradient(135deg,#14172a 0%,#111326 55%,#1a102b 100%); border: 1px solid #4a3c78; border-radius: 24px; box-shadow: 0 30px 90px rgba(0,0,0,.28); }
.final-icon { width: 96px; height: 96px; border-radius: 22px; box-shadow: 0 18px 44px rgba(169,108,255,.26), 0 0 36px rgba(85,220,255,.12); }
.final-cta h2 { max-width: 700px; font-size: clamp(32px, 3.3vw, 48px); }
.final-actions { display: flex; flex-direction: column; gap: 12px; min-width: 250px; }

footer { width: min(calc(100% - 48px), 1240px); margin: 82px auto 0; padding: 32px 0 42px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 24px; border-top: 1px solid rgba(255,255,255,.09); color: var(--muted); font-size: 12px; }
.footer-brand { color: var(--text); font-size: 15px; }
footer p { margin: 0; text-align: center; }
footer div { justify-self: end; display: flex; gap: 18px; }

@media (max-width: 960px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-header nav { display: none; }
  .hero { grid-template-columns: minmax(0, 1fr); gap: 48px; padding-top: 62px; }
  .hero-copy { min-width: 0; max-width: 680px; }
  .product-stage { min-width: 0; }
  .product-stage { width: min(760px, 100%); margin: 0 auto; }
  .section-heading { max-width: 760px; }
  .final-cta { padding: 48px; grid-template-columns: 80px 1fr; align-items: start; }
  .final-icon { width: 80px; height: 80px; border-radius: 18px; }
  .final-actions { grid-column: 1 / -1; width: 100%; flex-direction: row; }
  .final-actions .button { flex: 1; }
}

@media (max-width: 640px) {
  .site-header, .hero, .proof-strip, .section, footer { width: min(calc(100% - 32px), var(--max)); }
  .site-header { min-height: 68px; }
  .brand { font-size: 16px; }
  .brand img { width: 36px; height: 36px; }
  .button-small { min-height: 44px; padding: 0 14px; font-size: 14px; }
  .hero { min-height: auto; gap: 32px; padding: 38px 0 44px; }
  h1 { font-size: clamp(46px, 14vw, 58px); }
  .hero-lead { font-size: 16px; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 12px; margin-top: 28px; }
  .hero-note { margin-top: 12px; line-height: 1.55; }
  .product-stage { width: 100%; padding: 0; }
  .proof-strip { grid-template-columns: 1fr; }
  .proof-strip { border-radius: 12px; }
  .proof-strip p { min-height: 76px; padding: 15px 16px; border-right: 0; border-bottom: 1px solid var(--line); }
  .proof-strip p:last-child { border-bottom: 0; }
  .section { padding: 76px 0; }
  .mode-cards { margin-top: 34px; grid-template-columns: 1fr; }
  .mode-card { min-height: 166px; padding: 28px 24px; }
  .mode-card h3 { margin-bottom: 12px; font-size: 32px; }
  .mode-card .mode-value { font-size: 19px; }
  .final-cta { min-height: 0; padding: 32px 24px; grid-template-columns: 1fr; gap: 24px; }
  .final-icon { width: 64px; height: 64px; border-radius: 15px; }
  .final-actions { flex-direction: column; }
  footer { grid-template-columns: 1fr; justify-items: start; margin-top: 64px; }
  footer p { text-align: left; }
  footer div { justify-self: start; flex-wrap: wrap; gap: 4px 16px; }
  footer div a { min-height: 44px; display: inline-flex; align-items: center; font-size: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}