:root {
  --ink: #101425;
  --ink-soft: #4d566a;
  --muted: #7c8598;
  --line: #dfe5ef;
  --surface: #ffffff;
  --surface-soft: #f4f7fb;
  --blue: #3478f6;
  --blue-deep: #1859d8;
  --cyan: #75dbf7;
  --violet: #826df8;
  --page: #f7f9fc;
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;
  --shadow: 0 24px 70px rgba(34, 65, 120, .14);
  --shell: min(1180px, calc(100% - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
svg { fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }

.sr-only {
  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;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 10px 14px;
  border-radius: 8px;
  color: #fff;
  background: var(--ink);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  background: rgba(247, 249, 252, .82);
  backdrop-filter: blur(18px);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.site-header.scrolled { border-color: rgba(209, 217, 230, .78); box-shadow: 0 8px 24px rgba(18, 28, 52, .04); }
.nav-shell {
  width: var(--shell);
  height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 20px; font-weight: 760; letter-spacing: -.04em; }
.brand img { width: 40px; height: 40px; border-radius: 11px; }
.site-nav { display: flex; align-items: center; gap: 30px; color: var(--ink-soft); font-size: 14px; font-weight: 620; }
.site-nav a { transition: color .2s ease; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--blue); }
.nav-status { display: inline-flex; align-items: center; gap: 8px; padding: 9px 13px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.76); color: var(--ink); }
.nav-status i { width: 7px; height: 7px; border-radius: 50%; background: #f0a11a; box-shadow: 0 0 0 4px rgba(240, 161, 26, .13); }
.menu-button { display: none; width: 42px; height: 42px; place-items: center; border: 0; background: transparent; color: var(--ink); cursor: pointer; }
.menu-button svg { width: 24px; }

.hero {
  position: relative;
  width: var(--shell);
  min-height: 730px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: .94fr 1.06fr;
  align-items: center;
  gap: 34px;
  padding: 64px 0 84px;
}
.hero-copy { position: relative; z-index: 2; padding-bottom: 10px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 28px; color: var(--blue-deep); font-size: 12px; font-weight: 760; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow span:last-child { padding-left: 10px; border-left: 1px solid #b9c9e6; color: var(--muted); }
.hero h1 { margin: 0; font-size: clamp(58px, 6.7vw, 98px); line-height: .94; letter-spacing: -.075em; font-weight: 760; }
.hero h1 em { color: var(--blue); font-style: normal; }
.hero-intro { max-width: 590px; margin: 30px 0 0; color: var(--ink-soft); font-size: clamp(18px, 1.7vw, 22px); line-height: 1.55; letter-spacing: -.018em; }
.hero-actions { display: flex; align-items: center; gap: 24px; margin-top: 34px; }
.development-button { display: inline-flex; align-items: center; gap: 12px; min-width: 218px; padding: 12px 20px 12px 17px; border-radius: var(--radius-sm); color: #fff; background: var(--ink); box-shadow: 0 14px 28px rgba(16, 20, 37, .16); }
.development-button svg { width: 29px; height: 29px; fill: currentColor; stroke: none; }
.development-button span { font-size: 16px; font-weight: 680; line-height: 1.05; }
.development-button small { display: block; margin-bottom: 3px; color: #bfc5d1; font-size: 10px; font-weight: 560; letter-spacing: .05em; text-transform: uppercase; }
.text-link { display: inline-flex; gap: 8px; align-items: center; color: var(--ink); font-size: 14px; font-weight: 700; }
.text-link span { color: var(--blue); }
.availability-note { margin: 13px 0 0; color: var(--muted); font-size: 12px; }

.hero-visual { position: relative; min-height: 610px; display: grid; place-items: center; isolation: isolate; }
.hero-visual::before { content: ""; position: absolute; width: 530px; height: 530px; border-radius: 50%; background: radial-gradient(circle at 38% 32%, #e8faff 0, #cfe5ff 42%, #d9d7ff 73%, rgba(217,215,255,0) 74%); filter: saturate(110%); z-index: -2; }
.orbit { position: absolute; width: 470px; height: 470px; border: 1px solid rgba(63, 118, 227, .16); border-radius: 50%; z-index: -1; }
.orbit-one { transform: rotate(20deg) scaleY(.72); }
.orbit-two { transform: rotate(-36deg) scaleY(.82); width: 560px; height: 560px; }
.phone { width: 286px; height: 584px; padding: 8px; border-radius: 48px; background: #131621; box-shadow: 0 42px 90px rgba(29, 57, 110, .28), 0 0 0 1px rgba(255,255,255,.5) inset; transform: rotate(3deg); }
.phone-screen { position: relative; height: 100%; overflow: hidden; border-radius: 40px; background: #f6f8fc; }
.phone-screen::before { content: ""; position: absolute; top: 9px; left: 50%; width: 88px; height: 24px; border-radius: 16px; background: #10131c; transform: translateX(-50%); z-index: 3; }
.phone-status { height: 42px; display: flex; justify-content: space-between; align-items: center; padding: 0 20px; color: #202639; font-size: 10px; font-weight: 700; }
.status-icons { font-size: 7px; letter-spacing: 2px; }
.app-bar { display: flex; align-items: center; justify-content: space-between; padding: 9px 18px 12px; }
.app-kicker { display: block; margin-bottom: 2px; color: var(--muted); font-size: 8px; }
.app-bar strong { display: block; font-size: 22px; letter-spacing: -.04em; }
.app-bar button { width: 29px; height: 29px; border: 0; border-radius: 50%; color: #fff; background: var(--blue); font-size: 19px; line-height: 1; }
.search-pill { height: 32px; margin: 0 13px 8px; padding: 0 11px; display: flex; align-items: center; gap: 7px; border: 1px solid #e5e9f1; border-radius: 999px; color: #969dad; background: #fff; font-size: 9px; }
.search-pill svg { width: 13px; }
.chat-list { padding: 1px 0 64px; }
.chat-row { position: relative; min-height: 68px; padding: 10px 14px; display: grid; grid-template-columns: 40px 1fr auto; align-items: center; gap: 10px; }
.chat-row::after { content: ""; position: absolute; right: 0; bottom: 0; left: 64px; height: 1px; background: #e8ebf2; }
.avatar { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 13px; color: #fff; font-size: 13px; font-weight: 800; }
.avatar-blue { background: linear-gradient(140deg, #55b8ff, #3874f6); }
.avatar-violet { background: linear-gradient(140deg, #a982ff, #7259ec); }
.avatar-cyan { background: linear-gradient(140deg, #66d9e7, #42a8bd); }
.avatar-sand { background: linear-gradient(140deg, #ffc46a, #ed8f62); }
.chat-content { min-width: 0; }
.chat-content b, .chat-content small { display: block; }
.chat-content b { margin-bottom: 4px; color: #202639; font-size: 11px; }
.chat-content small { overflow: hidden; color: #8b93a4; font-size: 8.5px; text-overflow: ellipsis; white-space: nowrap; }
.chat-meta { align-self: start; margin-top: 5px; display: flex; flex-direction: column; align-items: end; gap: 6px; }
.chat-meta time { color: #a0a6b4; font-size: 7px; }
.chat-meta i { width: 15px; height: 15px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--blue); font-size: 7px; font-style: normal; }
.tab-bar { position: absolute; right: 0; bottom: 0; left: 0; height: 59px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid #e3e8f0; background: rgba(255,255,255,.95); }
.tab-bar span { display: grid; place-items: center; align-content: center; gap: 2px; color: #9ca3b2; font-size: 7px; }
.tab-bar svg { width: 17px; height: 17px; }
.tab-bar span.active { color: var(--blue); font-weight: 700; }
.floating-note { position: absolute; z-index: 2; display: flex; align-items: center; gap: 10px; padding: 12px 15px; border: 1px solid rgba(255,255,255,.9); border-radius: 16px; background: rgba(255,255,255,.9); box-shadow: 0 16px 34px rgba(37, 63, 105, .13); backdrop-filter: blur(14px); }
.floating-note b, .floating-note small { display: block; }
.floating-note b { margin-bottom: 3px; font-size: 11px; }
.floating-note small { color: var(--muted); font-size: 8px; }
.note-private { top: 117px; left: 6px; }
.note-message { right: -7px; bottom: 110px; }
.note-icon { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 9px; color: var(--blue); background: #e8f1ff; }
.note-icon svg { width: 16px; }
.live-dot { width: 9px; height: 9px; border-radius: 50%; background: #37c87f; box-shadow: 0 0 0 5px rgba(55,200,127,.13); }

.signal-strip { width: var(--shell); margin: 0 auto; padding: 22px 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.signal-strip p { margin: 0; padding: 0 24px; border-right: 1px solid var(--line); color: var(--ink-soft); font-size: 13px; font-weight: 630; }
.signal-strip p:first-child { padding-left: 0; }
.signal-strip p:last-child { border-right: 0; }
.signal-strip span { margin-right: 10px; color: var(--blue); font-size: 10px; }

.section-shell { width: var(--shell); margin: 0 auto; }
.features { padding: 136px 0 150px; }
.section-heading { display: grid; grid-template-columns: .95fr 1.05fr; column-gap: 80px; align-items: end; margin-bottom: 64px; }
.section-label { margin: 0 0 18px; color: var(--blue-deep); font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.section-heading .section-label { grid-column: 1 / -1; }
.section-heading h2, .privacy-copy h2, .support h2 { margin: 0; font-size: clamp(42px, 5vw, 68px); line-height: 1.02; letter-spacing: -.06em; }
.section-heading > p:last-child { margin: 0 0 5px; color: var(--ink-soft); font-size: 18px; line-height: 1.65; }
.feature-layout { display: grid; grid-template-columns: 1.16fr .84fr; gap: 20px; }
.feature-lead { min-height: 540px; padding: 42px; display: flex; flex-direction: column; justify-content: space-between; border-radius: var(--radius-lg); background: #eaf2ff; overflow: hidden; }
.feature-lead > div:last-child { max-width: 460px; }
.feature-number { display: inline-block; margin-bottom: 12px; color: var(--blue-deep); font-size: 10px; font-weight: 800; letter-spacing: .1em; }
.feature-lead h3, .feature-stack h3 { margin: 0 0 12px; font-size: 25px; letter-spacing: -.035em; }
.feature-lead p, .feature-stack p { margin: 0; color: var(--ink-soft); font-size: 15px; line-height: 1.6; }
.message-demo { width: 75%; margin: 5px auto 38px; display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
.demo-date { align-self: center; margin-bottom: 5px; color: #8e9cb2; font-size: 8px; font-weight: 750; letter-spacing: .12em; }
.bubble { max-width: 78%; padding: 11px 14px; border-radius: 17px; font-size: 12px; line-height: 1.35; box-shadow: 0 8px 20px rgba(58, 87, 137, .07); }
.bubble.received { border-bottom-left-radius: 5px; background: #fff; }
.bubble.sent { align-self: flex-end; border-bottom-right-radius: 5px; color: #fff; background: var(--blue); }
.typing { display: flex; gap: 4px; padding: 13px 15px; border-radius: 17px 17px 17px 5px; background: #fff; }
.typing i { width: 5px; height: 5px; border-radius: 50%; background: #9aa6b8; }
.feature-stack { display: grid; gap: 20px; }
.feature-stack article { padding: 34px; display: grid; grid-template-columns: auto 1fr; gap: 24px; align-items: start; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); }
.feature-icon { width: 54px; height: 54px; display: grid; place-items: center; border-radius: 17px; color: var(--blue); background: var(--surface-soft); }
.feature-icon svg { width: 27px; height: 27px; }

.privacy-section { padding: 124px 0; color: #fff; background: var(--ink); }
.privacy-inner { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; align-items: start; }
.privacy-copy { position: sticky; top: 118px; }
.privacy-copy .section-label { color: #81b0ff; }
.privacy-copy > p:not(.section-label) { max-width: 460px; margin: 28px 0; color: #b9c2d3; font-size: 17px; line-height: 1.7; }
.arrow-link { display: inline-flex; align-items: center; gap: 12px; padding-bottom: 6px; border-bottom: 1px solid #536079; font-size: 14px; font-weight: 700; }
.arrow-link span { color: #81b0ff; }
.privacy-facts { border-top: 1px solid #333b4e; }
.privacy-facts article { padding: 35px 0; display: grid; grid-template-columns: 45px 1fr; gap: 24px; border-bottom: 1px solid #333b4e; }
.privacy-facts article > span { color: #81b0ff; font-size: 10px; font-weight: 800; letter-spacing: .12em; }
.privacy-facts h3 { margin: 0 0 10px; font-size: 22px; letter-spacing: -.025em; }
.privacy-facts p { margin: 0; color: #aeb7c8; font-size: 15px; line-height: 1.65; }

.support { padding: 120px 0; display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.support-card { padding: 36px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); }
.support-card p { margin: 0 0 28px; color: var(--ink-soft); font-size: 16px; line-height: 1.65; }
.support-card a { display: flex; align-items: center; justify-content: space-between; padding-top: 18px; border-top: 1px solid var(--line); color: var(--blue-deep); font-weight: 740; }

.site-footer { color: #c8cfdb; background: #0a0d16; }
.footer-main, .footer-meta { width: var(--shell); margin: 0 auto; }
.footer-main { min-height: 240px; padding: 65px 0; display: grid; grid-template-columns: .7fr 1fr 1fr; gap: 50px; align-items: start; }
.brand-footer { color: #fff; }
.footer-main > p { max-width: 300px; margin: 7px 0 0; color: #8d97a9; line-height: 1.6; }
.footer-main nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 30px; font-size: 13px; }
.footer-main nav a:hover, .footer-main nav a:focus-visible { color: #fff; }
.footer-meta { padding: 20px 0 28px; display: flex; justify-content: space-between; gap: 24px; border-top: 1px solid #222838; color: #687285; font-size: 11px; }
.footer-meta p { margin: 0; }

a:focus-visible, button:focus-visible { outline: 3px solid rgba(52, 120, 246, .45); outline-offset: 3px; }

@media (max-width: 980px) {
  :root { --shell: min(100% - 40px, 760px); }
  .hero { min-height: auto; grid-template-columns: 1fr; padding-top: 70px; }
  .hero-copy { text-align: center; }
  .eyebrow, .hero-actions { justify-content: center; }
  .hero-intro { margin-right: auto; margin-left: auto; }
  .hero-visual { min-height: 650px; }
  .signal-strip { grid-template-columns: repeat(2, 1fr); }
  .signal-strip p { padding: 12px 20px; }
  .signal-strip p:nth-child(2) { border-right: 0; }
  .signal-strip p:nth-child(3) { padding-left: 0; }
  .section-heading, .feature-layout, .privacy-inner, .support { grid-template-columns: 1fr; }
  .section-heading { gap: 26px; }
  .feature-lead { min-height: 520px; }
  .privacy-inner, .support { gap: 60px; }
  .privacy-copy { position: static; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-main nav { grid-column: 1 / -1; }
}

@media (max-width: 700px) {
  :root { --shell: calc(100% - 32px); }
  .nav-shell { height: 66px; }
  .brand img { width: 36px; height: 36px; border-radius: 10px; }
  .menu-button { display: grid; }
  .site-nav { position: fixed; inset: 66px 0 auto; padding: 24px 20px 28px; display: none; align-items: stretch; flex-direction: column; gap: 0; border-bottom: 1px solid var(--line); background: rgba(247,249,252,.98); box-shadow: 0 18px 34px rgba(20,31,53,.1); }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
  .nav-status { margin-top: 18px; align-self: flex-start; }
  .hero { padding: 58px 0 70px; }
  .hero h1 { font-size: clamp(52px, 15vw, 72px); }
  .eyebrow { margin-bottom: 22px; }
  .hero-intro { margin-top: 24px; font-size: 18px; }
  .hero-actions { flex-direction: column; gap: 18px; }
  .availability-note { margin-top: 15px; line-height: 1.5; }
  .hero-visual { min-height: 570px; margin-top: 20px; transform: scale(.91); }
  .hero-visual::before { width: 380px; height: 380px; }
  .orbit-one { width: 350px; height: 350px; }
  .orbit-two { width: 330px; height: 330px; }
  .note-private { left: -18px; }
  .note-message { right: -20px; }
  .signal-strip { grid-template-columns: 1fr; padding: 12px 0; }
  .signal-strip p, .signal-strip p:nth-child(3) { padding: 13px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .signal-strip p:last-child { border-bottom: 0; }
  .features { padding: 90px 0 100px; }
  .section-heading { margin-bottom: 42px; }
  .section-heading h2, .privacy-copy h2, .support h2 { font-size: 43px; }
  .section-heading > p:last-child { font-size: 16px; }
  .feature-lead { min-height: 480px; padding: 28px; }
  .message-demo { width: 100%; }
  .feature-stack article { padding: 27px; grid-template-columns: 1fr; gap: 18px; }
  .feature-icon { width: 48px; height: 48px; }
  .privacy-section { padding: 90px 0; }
  .privacy-copy > p:not(.section-label) { font-size: 16px; }
  .privacy-facts article { grid-template-columns: 32px 1fr; gap: 15px; }
  .support { padding: 90px 0; gap: 42px; }
  .support-card { padding: 26px; }
  .footer-main { padding: 55px 0; grid-template-columns: 1fr; gap: 24px; }
  .footer-main nav { grid-column: auto; margin-top: 20px; grid-template-columns: 1fr; }
  .footer-meta { flex-direction: column; }
}

@media (max-width: 380px) {
  .hero-visual { transform: scale(.82); margin: -20px 0; }
  .orbit { display: none; }
  .floating-note { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}