:root {
  --ink: #08090a;
  --paper: #ffffff;
  --bg: #f7f8f7;
  --tint: #f1f5f2;
  --card: #ffffff;
  --line: rgba(8, 9, 10, 0.08);
  --muted: #646b67;
  --green: #18e299;
  --green-deep: #0b9f6a;
  --lime: #d4ff5a;
  --f-ui: "Inter", -apple-system, "Segoe UI", sans-serif;
  --f-display: "Inter Tight", "Inter", sans-serif;
  --f-mono: "Geist Mono", ui-monospace, "SF Mono", monospace;
  --radius: 18px;
  --shadow: 0 1px 2px rgba(8, 9, 10, 0.04), 0 12px 40px -12px rgba(8, 9, 10, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/1.6 var(--f-ui);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--f-display); font-weight: 500; letter-spacing: -0.03em; margin: 0; }
h2 { font-size: clamp(28px, 4vw, 44px); line-height: 1.08; }
h3 { font-size: 17px; letter-spacing: -0.01em; }
p { margin: 0; }

.container { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 20px; }
.center { text-align: center; }
.muted { color: var(--muted); }

/* Banner */
.banner {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  padding: 9px 16px; background: var(--ink); color: #e9ece9; font-size: 13px;
}
.banner__tag {
  font: 500 11px var(--f-mono); letter-spacing: 0.06em;
  background: var(--lime); color: var(--ink); padding: 3px 8px; border-radius: 6px;
}
.banner__link { color: var(--green); text-decoration: none; font-weight: 500; }
.banner__link:hover { text-decoration: underline; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(247, 248, 247, 0.78);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 600; letter-spacing: -0.02em; }
.brand__slash { color: #c3c8c5; font-weight: 400; }
.brand__agent { color: var(--green-deep); }
.nav__links { display: flex; gap: 28px; font-size: 14px; }
.nav__links a { text-decoration: none; color: #3b403d; }
.nav__links a:hover { color: var(--ink); }
.nav__cta { display: flex; gap: 8px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 38px; padding: 0 16px; border-radius: 999px;
  font: 500 14px var(--f-ui); text-decoration: none; white-space: nowrap;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn--lg { height: 48px; padding: 0 22px; font-size: 15px; }
.btn--dark { background: var(--ink); color: #fff; box-shadow: 0 6px 20px -8px rgba(8, 9, 10, 0.55); }
.btn--dark:hover { background: #1b1e1c; }
.btn--light { background: #fff; color: var(--ink); border: 1px solid var(--line); box-shadow: var(--shadow); }
.btn--ghost { color: var(--ink); border: 1px solid var(--line); background: transparent; }

/* Hero */
.hero { position: relative; padding: 88px 0 40px; overflow: hidden; }
.hero__inner { position: relative; text-align: center; display: flex; flex-direction: column; align-items: center; }
.glow { position: absolute; border-radius: 50%; filter: blur(80px); pointer-events: none; }
.glow--a { width: 520px; height: 420px; background: rgba(24, 226, 153, 0.28); top: -120px; left: -120px; }
.glow--b { width: 480px; height: 380px; background: rgba(212, 255, 90, 0.35); top: 60px; right: -140px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font: 500 12px var(--f-mono); text-transform: uppercase; letter-spacing: 0.08em;
  color: #3b403d; background: #fff; border: 1px solid var(--line);
  padding: 6px 12px; border-radius: 999px; box-shadow: var(--shadow);
}
.eyebrow .sep { color: #b6bcb8; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(24, 226, 153, 0.2); }
.hero__title { margin-top: 26px; display: flex; flex-direction: column; align-items: center; gap: 14px; }
.hero__name {
  font-size: clamp(72px, 13vw, 148px); line-height: 0.9; letter-spacing: -0.055em;
  background: linear-gradient(100deg, var(--ink) 30%, var(--green-deep) 70%, #6fcf2d);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__sub { max-width: 760px; font-size: clamp(22px, 3vw, 34px); line-height: 1.18; letter-spacing: -0.025em; }
.hero__sub em { font-style: normal; color: var(--green-deep); }
.hero__ctas { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 32px; }
.hero__ctas.left { justify-content: flex-start; }
.hero__credit { margin-top: 18px; font-size: 13px; color: var(--muted); }
.hero__credit a { color: var(--ink); font-weight: 600; text-decoration: none; }

/* Orbit visual */
.orbit { position: relative; width: min(640px, 100%); height: 300px; margin-top: 48px; }
.orbit__avatar {
  position: absolute; left: 50%; top: 50%; width: 128px; height: 128px;
  transform: translate(-50%, -50%); border-radius: 32px; object-fit: cover;
  box-shadow: 0 0 0 8px #fff, 0 0 0 9px var(--line), 0 30px 60px -20px rgba(11, 159, 106, 0.55);
  animation: bob 6s ease-in-out infinite;
}
.chip {
  position: absolute; padding: 8px 14px; border-radius: 999px; background: #fff;
  border: 1px solid var(--line); box-shadow: var(--shadow);
  font: 500 13px var(--f-ui); white-space: nowrap; animation: bob 7s ease-in-out infinite;
}
.chip::before { content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--green); margin-right: 8px; vertical-align: middle; }
.chip--1 { left: 4%; top: 18%; animation-delay: -1s; }
.chip--2 { right: 2%; top: 10%; animation-delay: -3s; }
.chip--3 { left: 14%; bottom: 10%; animation-delay: -2s; }
.chip--4 { right: 8%; bottom: 18%; animation-delay: -4s; }
.chip--5 { left: 50%; top: 0; transform: translateX(-50%); animation-name: bobx; animation-delay: -5s; }
.chip--5::before { background: var(--lime); }
@keyframes bob { 0%, 100% { translate: 0 0; } 50% { translate: 0 -10px; } }
@keyframes bobx { 0%, 100% { translate: 0 0; } 50% { translate: 0 8px; } }

/* Sections */
.section { padding: 96px 0; }
.section--tint { background: var(--tint); border-block: 1px solid var(--line); }
.kicker { font: 500 12px var(--f-mono); text-transform: uppercase; letter-spacing: 0.1em; color: var(--green-deep); margin-bottom: 14px; }
.lead { margin-top: 18px; font-size: 18px; color: #3b403d; max-width: 520px; }
.note { margin-top: 18px; font-size: 14px; color: var(--muted); max-width: 460px; }

.split > *, .row > *, .token > * { min-width: 0; }
.split { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; }

/* Chat app mock */
.app { background: var(--card); border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow); overflow: hidden; }
.app__bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 16px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.app__who { display: flex; align-items: center; gap: 10px; }
.app__who img { border-radius: 8px; object-fit: cover; }
.app__who strong { display: block; font-size: 14px; line-height: 1.2; }
.app__who span { font-size: 12px; color: var(--muted); }
.tabs { display: flex; background: var(--bg); padding: 3px; border-radius: 10px; gap: 2px; }
.tab { border: 0; background: transparent; font: 500 13px var(--f-ui); padding: 6px 12px; border-radius: 8px; cursor: pointer; color: var(--muted); }
.tab.is-active { background: #fff; color: var(--ink); box-shadow: 0 1px 3px rgba(8, 9, 10, 0.1); }
.app__body { height: 340px; padding: 20px 16px; display: flex; flex-direction: column; gap: 12px; overflow: hidden; }
.app__input { margin: 0 16px 16px; display: flex; justify-content: space-between; align-items: center; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; color: #9aa09c; font-size: 14px; }
.app__input kbd { font: 500 12px var(--f-mono); background: var(--bg); padding: 2px 7px; border-radius: 6px; color: var(--muted); }

.bubble { max-width: 86%; padding: 11px 14px; border-radius: 16px; font-size: 14.5px; line-height: 1.5; animation: rise 0.35s ease both; }
.bubble--me { align-self: flex-end; background: var(--ink); color: #fff; border-bottom-right-radius: 5px; }
.bubble--bot { align-self: flex-start; background: var(--tint); border: 1px solid var(--line); border-bottom-left-radius: 5px; }
.bubble--bot a { color: var(--green-deep); font-weight: 500; }
.typing { display: inline-flex; gap: 4px; }
.typing i { width: 6px; height: 6px; border-radius: 50%; background: #9aa09c; animation: blink 1s infinite; }
.typing i:nth-child(2) { animation-delay: 0.15s; }
.typing i:nth-child(3) { animation-delay: 0.3s; }
@keyframes blink { 0%, 100% { opacity: 0.3; } 50% { opacity: 1; } }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* Hub */
.hub { margin: 56px auto 0; display: grid; grid-template-columns: 1fr auto 1fr; gap: 40px; align-items: center; max-width: 900px; position: relative; }
.hub::before { content: ""; position: absolute; left: 12%; right: 12%; top: 50%; border-top: 1.5px dashed rgba(11, 159, 106, 0.35); z-index: 0; }
.hub__group { position: relative; z-index: 1; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.hub__group h3 { font: 500 12px var(--f-mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin-bottom: 12px; }
.hub__group ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.hub__group li { font-size: 13.5px; padding: 6px 11px; border: 1px solid var(--line); border-radius: 999px; background: var(--bg); }
.hub__center { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.hub__ring { padding: 6px; border-radius: 50%; background: conic-gradient(from 0deg, var(--green), var(--lime), var(--green)); animation: spin 10s linear infinite; }
.hub__ring img { width: 120px; height: 120px; border-radius: 50%; object-fit: cover; border: 4px solid #fff; animation: spin 10s linear infinite reverse; }
.hub__label { font: 500 13px var(--f-mono); }
@keyframes spin { to { rotate: 360deg; } }

.cols { list-style: none; padding: 0; margin: 64px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.cols li { border-top: 1px solid var(--line); padding-top: 20px; }
.cols span { font: 500 12px var(--f-mono); color: var(--green-deep); }
.cols h3 { margin: 8px 0 6px; font-size: 20px; }
.cols p { color: var(--muted); font-size: 15px; }

/* Statement */
.statement { font-size: clamp(30px, 4.6vw, 54px); line-height: 1.1; max-width: 980px; margin: 0 auto; text-align: center; letter-spacing: -0.035em; }
.hl { background: linear-gradient(transparent 62%, rgba(212, 255, 90, 0.85) 62%); }

/* Rows */
.section--rows { padding-top: 0; }
.rows { display: flex; flex-direction: column; gap: 104px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.row--flip .row__text { order: 2; }
.row__text h2 { font-size: clamp(26px, 3.2vw, 38px); }
.row__text p { margin-top: 16px; font-size: 17px; color: #3b403d; max-width: 480px; }

.mock { background: var(--card); border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow); padding: 22px; position: relative; }
.mock__head { display: flex; justify-content: space-between; align-items: center; gap: 12px; font: 500 12px var(--f-mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin-bottom: 18px; }
.mock__foot { margin-top: 16px; font-size: 13px; color: var(--muted); }
.badge { font: 500 11px var(--f-mono); text-transform: uppercase; padding: 4px 9px; border-radius: 999px; background: rgba(24, 226, 153, 0.14); color: var(--green-deep); white-space: nowrap; }
.badge--live::before { content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--green); margin-right: 6px; animation: blink 1.4s infinite; }

.steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.steps li { display: flex; align-items: center; gap: 12px; padding: 13px 14px; border: 1px solid var(--line); border-radius: 12px; font-size: 15px; color: var(--muted); }
.steps b { font: 500 12px var(--f-mono); color: #a4aaa6; }
.steps i { margin-left: auto; font-style: normal; }
.steps .is-done { color: var(--ink); }
.steps .is-done i { color: var(--green-deep); }
.steps .is-active { color: var(--ink); border-color: rgba(24, 226, 153, 0.6); background: rgba(24, 226, 153, 0.06); }
.spin { width: 14px; height: 14px; border-radius: 50%; border: 2px solid rgba(11, 159, 106, 0.25); border-top-color: var(--green-deep); animation: spin 0.9s linear infinite; }

.feebar { display: flex; height: 18px; border-radius: 999px; overflow: hidden; gap: 3px; }
.feebar span { width: calc(var(--w) * 1%); transform-origin: left; animation: grow 1s ease both; }
@keyframes grow { from { transform: scaleX(0); } }
.f1 { background: var(--ink); }
.f2 { background: var(--green-deep); }
.f3 { background: var(--green); }
.f4 { background: var(--lime); }
.f5 { background: #c9cfcb; }
.legend { list-style: none; margin: 18px 0 0; padding: 0; display: flex; flex-direction: column; gap: 10px; font-size: 14.5px; }
.legend li { display: flex; align-items: center; gap: 10px; }
.legend i { width: 10px; height: 10px; border-radius: 3px; flex: none; }
.legend b { font: 500 13px var(--f-mono); width: 38px; }

.price { display: flex; align-items: center; gap: 18px; padding: 16px; background: var(--bg); border-radius: 14px; }
.price small { display: block; font: 500 11px var(--f-mono); text-transform: uppercase; color: var(--muted); }
.price s { font: 500 22px var(--f-display); color: #9aa09c; }
.price strong { font: 600 28px var(--f-display); color: var(--green-deep); letter-spacing: -0.02em; }
.price .arrow { color: var(--muted); }
.code { margin: 14px 0 0; padding: 14px 16px; background: var(--ink); color: #e5ebe7; border-radius: 14px; font: 400 12.5px/1.7 var(--f-mono); overflow-x: auto; }
.code .c { color: var(--green); }

.mock--refuse { display: flex; flex-direction: column; gap: 12px; }
.rule { margin-top: 6px; padding: 12px 14px; border: 1px dashed rgba(11, 159, 106, 0.45); border-radius: 12px; font-size: 14px; }
.rule span { display: block; font: 500 11px var(--f-mono); text-transform: uppercase; color: var(--green-deep); margin-bottom: 4px; }

/* Token */
.token { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; align-items: center; }
.addr { margin: 0; display: flex; flex-direction: column; gap: 12px; }
.addr div { padding: 12px 14px; background: var(--bg); border-radius: 12px; }
.addr dt { font: 500 11px var(--f-mono); text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.addr dd { margin: 0; display: flex; align-items: center; gap: 10px; }
.addr code { font: 400 12.5px var(--f-mono); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; flex: 1; }
.copy { flex: none; border: 1px solid var(--line); background: #fff; border-radius: 8px; padding: 4px 10px; font: 500 12px var(--f-ui); cursor: pointer; }
.copy.is-done { background: var(--green); border-color: var(--green); }

/* FAQ */
.faq { max-width: 760px; }
.faq h2 { margin-bottom: 36px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 20px 0; font: 500 18px var(--f-display); letter-spacing: -0.01em; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font: 400 22px var(--f-ui); color: var(--muted); transition: transform 0.2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 0 20px; color: #3b403d; max-width: 640px; }
.faq details a { color: var(--green-deep); }

/* Final */
.final { position: relative; overflow: hidden; text-align: center; padding: 72px 24px; border-radius: 28px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); display: flex; flex-direction: column; align-items: center; }
.glow--c { width: 600px; height: 300px; background: rgba(24, 226, 153, 0.22); bottom: -180px; left: 50%; transform: translateX(-50%); }
.final__avatar { position: relative; width: 72px; height: 72px; border-radius: 20px; object-fit: cover; margin-bottom: 24px; box-shadow: 0 0 0 6px var(--tint); }
.final h2 { position: relative; }
.final .hero__ctas { position: relative; }

/* Footer */
.footer { background: var(--ink); color: #c9cfcb; padding: 64px 0 28px; }
.footer .brand { color: #fff; }
.footer__inner { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.footer__brand p { margin-top: 12px; max-width: 300px; font-size: 14px; color: #8e9590; }
.footer__cols { display: flex; gap: 56px; flex-wrap: wrap; }
.footer__cols h4 { margin: 0 0 12px; font: 500 12px var(--f-mono); text-transform: uppercase; letter-spacing: 0.08em; color: #8e9590; }
.footer__cols a { display: block; text-decoration: none; font-size: 14px; padding: 4px 0; }
.footer__cols a:hover { color: var(--green); }
.footer__legal { margin-top: 48px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, 0.08); font-size: 12.5px; color: #7b827d; }

/* Responsive */
@media (max-width: 900px) {
  .nav__links { display: none; }
  .split, .row, .token { grid-template-columns: 1fr; gap: 36px; }
  .row--flip .row__text { order: 0; }
  .hub { grid-template-columns: 1fr; gap: 20px; }
  .hub::before { display: none; }
  .hub__center { order: -1; }
  .cols { grid-template-columns: 1fr; gap: 20px; }
  .section { padding: 72px 0; }
  .rows { gap: 72px; }
}
@media (max-width: 560px) {
  .container { padding: 0 16px; }
  .hide-sm { display: none; }
  .hero { padding-top: 56px; }
  .orbit { height: 260px; }
  .chip { font-size: 12px; padding: 6px 11px; }
  .chip--1 { left: 0; }
  .chip--2 { right: 0; top: 22%; }
  .chip--4 { right: 0; }
  .btn--lg { width: 100%; justify-content: center; }
  .app__body { height: 380px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}