:root {
  --bg: #faf9f6;
  --surface: #ffffff;
  --ink: #171717;
  --muted: #5f6670;
  --teal: #176b63;
  --teal-dark: #10564f;
  --teal-soft: #e8f2f0;
  --line: #dde1e5;
  --dark: #111513;
  --radius: 18px;
  --shadow: 0 22px 70px rgba(23, 23, 23, 0.09);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Manrope, Inter, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
img { max-width: 100%; display: block; }
.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.narrow { width: min(760px, 100%); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; z-index: 10; background: white; padding: 10px 14px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  border-bottom: 1px solid rgba(221, 225, 229, 0.78);
  background: rgba(250, 249, 246, 0.92);
  backdrop-filter: blur(14px);
}
.nav { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { font-size: 14px; font-weight: 800; letter-spacing: .08em; text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 24px; font-size: 14px; font-weight: 650; }
.nav-links a { text-decoration: none; }

.hero { padding: 92px 0 84px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 72px; align-items: center; }
.eyebrow { color: var(--teal); font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.1; letter-spacing: -.035em; margin: 0; }
h1 { max-width: 820px; font-size: clamp(44px, 6.2vw, 76px); }
h2 { max-width: 760px; font-size: clamp(34px, 4.2vw, 54px); }
h3 { font-size: 22px; }
.lead { max-width: 680px; margin: 24px 0 0; color: var(--muted); font-size: clamp(18px, 2vw, 21px); }
.price { margin-top: 28px; font-size: 20px; font-weight: 800; }
.price small { color: var(--muted); font-size: 14px; font-weight: 600; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; align-items: center; }
.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 12px;
  background: var(--teal);
  color: white;
  padding: 13px 20px;
  font-weight: 800;
  text-decoration: none;
  transition: transform .15s ease, background .15s ease;
}
.button:hover { transform: translateY(-1px); background: var(--teal-dark); }
.button.secondary { background: transparent; color: var(--ink); border-color: var(--line); }
.button.secondary:hover { background: white; }
.microcopy { color: var(--muted); font-size: 13px; }
.cover-frame { position: relative; padding: 20px; border-radius: 26px; background: #111513; box-shadow: var(--shadow); }
.cover-frame::before { content: ""; position: absolute; inset: 8px; border: 1px solid rgba(255,255,255,.1); border-radius: 20px; pointer-events: none; }
.cover-frame img { width: 100%; border-radius: 14px; }

.section { padding: 92px 0; }
.section.dark { background: var(--dark); color: white; }
.section.soft { background: var(--teal-soft); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 42px; }
.section-head p { max-width: 520px; margin: 0; color: var(--muted); }
.dark .section-head p { color: #b9c0c4; }
.grid { display: grid; gap: 18px; }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; background: var(--surface); }
.card p { color: var(--muted); margin: 12px 0 0; }
.dark .card { background: #181d1b; border-color: #2c3431; }
.dark .card p { color: #b9c0c4; }
.number { display: inline-flex; width: 34px; height: 34px; align-items: center; justify-content: center; border-radius: 50%; background: var(--teal-soft); color: var(--teal); font-weight: 800; margin-bottom: 18px; }
.dark .number { background: rgba(23,107,99,.25); color: #7cc1b9; }

.stack { counter-reset: stack; }
.system-card { position: relative; min-height: 190px; }
.system-card::after { counter-increment: stack; content: "0" counter(stack); position: absolute; top: 22px; right: 24px; color: #a6acae; font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.tag { display: inline-block; margin-bottom: 12px; color: var(--teal); font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }

.demo { border-left: 4px solid var(--teal); border-radius: 0 var(--radius) var(--radius) 0; background: white; padding: 28px; }
.demo + .demo { margin-top: 16px; }
.demo .customer { font-weight: 800; }
.demo .response { margin: 12px 0 0; color: var(--muted); }
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.flow div { text-align: center; border-top: 2px solid var(--teal); padding: 16px 8px 0; font-size: 14px; font-weight: 800; }

.checks { list-style: none; padding: 0; margin: 22px 0 0; }
.checks li { position: relative; padding-left: 28px; margin: 9px 0; }
.checks li::before { content: "✓"; position: absolute; left: 0; color: var(--teal); font-weight: 900; }
.faq details { border-top: 1px solid var(--line); padding: 20px 0; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 800; }
.faq p { color: var(--muted); margin-bottom: 0; }

.final-cta { border-radius: 28px; background: var(--dark); color: white; padding: 56px; }
.final-cta p { color: #c6ccca; max-width: 650px; }
.site-footer { padding: 34px 0; color: var(--muted); font-size: 13px; }
.footer-row { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }

.product-hero h1 { font-size: clamp(42px, 5vw, 68px); }
.engine-list { list-style: none; margin: 0; padding: 0; }
.engine-list li { border-top: 1px solid var(--line); padding: 18px 0; display: flex; justify-content: space-between; gap: 20px; }
.engine-list li:last-child { border-bottom: 1px solid var(--line); }
.decline { color: var(--muted); font-size: 14px; }

@media (max-width: 860px) {
  .hero { padding-top: 62px; }
  .hero-grid, .grid.three, .grid.two { grid-template-columns: 1fr; }
  .hero-grid { gap: 44px; }
  .section { padding: 70px 0; }
  .section-head { display: block; }
  .section-head p { margin-top: 18px; }
  .flow { grid-template-columns: 1fr; }
  .flow div { text-align: left; border-top: 0; border-left: 2px solid var(--teal); padding: 4px 0 4px 16px; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .wrap { width: min(100% - 28px, 1120px); }
  .nav-links a:not(.button) { display: none; }
  .hero { padding: 48px 0 62px; }
  .cover-frame { padding: 12px; border-radius: 20px; }
  .actions, .button { width: 100%; }
  .final-cta { padding: 34px 24px; border-radius: 20px; }
}

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

/* Core landing V2 — scoped to preserve the auxiliary product pages. */
.core-v2 {
  --v2-bg: #f4f2ed;
  --v2-paper: #fbfaf7;
  --v2-ink: #111513;
  --v2-muted: #626965;
  --v2-dark: #101412;
  --v2-dark-2: #171c19;
  --v2-teal: #176b63;
  --v2-teal-bright: #75b7ad;
  --v2-line: #d8dcd6;
  background: var(--v2-bg);
  color: var(--v2-ink);
}
.core-v2 .wrap { width: min(1180px, calc(100% - 48px)); }
.core-v2 .core-header { background: rgba(244,242,237,.9); border-color: rgba(17,21,19,.1); }
.core-v2 .brand { letter-spacing: .12em; }
.core-v2 .button { border-radius: 9px; box-shadow: inset 0 1px rgba(255,255,255,.12); }
.core-v2 .button-compact { min-height: 44px; padding: 9px 17px; border-radius: 8px; }
.core-v2 .button-large { min-height: 58px; padding: 16px 24px; }
.core-v2 h1, .core-v2 h2, .core-v2 h3 { letter-spacing: -.045em; }
.core-v2 h1 { font-size: clamp(42px,3.8vw,52px); line-height: 1.02; }
.core-v2 h2 { font-size: clamp(35px,4vw,58px); line-height: 1.02; }

.v2-kicker { display: flex; align-items: center; gap: 10px; margin: 0 0 22px; color: var(--v2-teal); font-size: 12px; font-weight: 850; letter-spacing: .14em; text-transform: uppercase; }
.v2-kicker span { width: 28px; height: 1px; background: currentColor; }
.v2-section { padding: 108px 0; }
.v2-section-intro { max-width: 820px; }
.v2-section-intro > p:last-child { max-width: 690px; margin: 24px 0 0; color: var(--v2-muted); font-size: 18px; }
.v2-section-intro-centered { margin: 0 auto 54px; text-align: center; }
.v2-section-intro-centered .v2-kicker { justify-content: center; }
.v2-section-intro-centered > p:last-child { margin-right: auto; margin-left: auto; }

.v2-hero { position: relative; overflow: hidden; padding: 60px 0 66px; background: radial-gradient(circle at 80% 20%,rgba(23,107,99,.08),transparent 30%),linear-gradient(180deg,#f8f6f1,var(--v2-bg)); }
.v2-hero::after { content: ""; position: absolute; inset: auto 0 0; height: 1px; background: linear-gradient(90deg,transparent,rgba(17,21,19,.2),transparent); }
.v2-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.v2-hero-copy { position: relative; z-index: 1; }
.v2-lead { max-width: 700px; margin: 24px 0 0; color: var(--v2-muted); font-size: clamp(18px,1.8vw,21px); line-height: 1.55; }
.v2-actions { margin-top: 28px; }
.v2-trust { display: flex; flex-wrap: wrap; margin: 18px 0 0; color: var(--v2-muted); font-size: 12px; font-weight: 720; }
.v2-trust span { display: flex; align-items: center; }
.v2-trust span + span::before { content: ""; width: 3px; height: 3px; margin: 0 10px; border-radius: 50%; background: var(--v2-teal); }
.v2-hero-visual { position: relative; margin: 0; }
.v2-hero-visual::before { content: ""; position: absolute; inset: -14px; border: 1px solid rgba(17,21,19,.13); border-radius: 22px; }
.v2-hero-visual img { position: relative; width: 100%; height: auto; aspect-ratio: 3/2; object-fit: cover; border-radius: 14px; box-shadow: 0 34px 90px rgba(17,21,19,.2); }
.v2-hero-visual figcaption { position: absolute; right: 18px; bottom: 18px; left: 18px; padding: 13px 16px; border: 1px solid rgba(255,255,255,.15); border-radius: 8px; background: rgba(12,15,14,.78); color: #dce1de; backdrop-filter: blur(12px); font-size: 12px; font-weight: 720; text-align: center; }

.v2-recognition { padding: 104px 0; background: var(--v2-dark); color: white; }
.v2-section-intro-light .v2-kicker, .v2-demo-section .v2-kicker { color: var(--v2-teal-bright); }
.v2-section-intro-light > p:last-child, .v2-demo-section .v2-section-intro > p:last-child { color: #aeb7b2; }
.v2-problem-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; margin-top: 56px; border: 1px solid #303633; background: #303633; }
.v2-problem-grid article { min-height: 230px; padding: 28px; background: var(--v2-dark-2); }
.v2-problem-grid article > span { color: var(--v2-teal-bright); font-size: 11px; font-weight: 850; letter-spacing: .14em; }
.v2-problem-grid h3 { margin-top: 34px; font-size: 22px; line-height: 1.17; letter-spacing: -.025em; }
.v2-problem-grid p { margin: 14px 0 0; color: #9fa8a3; font-size: 15px; }

.v2-mechanism-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 80px; align-items: end; }
.v2-mechanism { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; align-items: center; gap: 12px; }
.v2-mechanism div { min-height: 145px; padding: 24px 18px; border-top: 2px solid var(--v2-teal); background: var(--v2-paper); box-shadow: 0 12px 28px rgba(17,21,19,.05); }
.v2-mechanism b { display: block; font-size: 17px; }
.v2-mechanism span { display: block; margin-top: 16px; color: var(--v2-muted); font-size: 13px; line-height: 1.45; }
.v2-mechanism i { color: var(--v2-teal); font-style: normal; }

.v2-systems { background: #ebe9e3; }
.v2-system-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.v2-system-card { position: relative; min-height: 278px; overflow: hidden; padding: 30px; border: 1px solid var(--v2-line); border-radius: 4px; background: var(--v2-paper); transition: transform .18s ease,box-shadow .18s ease; }
.v2-system-card:hover { transform: translateY(-3px); box-shadow: 0 22px 46px rgba(17,21,19,.08); }
.v2-system-card::after { content: ""; position: absolute; right: -42px; bottom: -42px; width: 110px; height: 110px; border: 1px solid rgba(23,107,99,.14); transform: rotate(45deg); }
.v2-index { color: #a3aaa6; font-size: 11px; font-weight: 850; letter-spacing: .12em; }
.v2-label { margin: 36px 0 10px; color: var(--v2-teal); font-size: 11px; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.v2-system-card h3 { font-size: 23px; }
.v2-system-card > p:last-of-type { margin: 15px 0 0; color: var(--v2-muted); font-size: 15px; }

.v2-how { background: var(--v2-paper); }
.v2-steps { display: grid; grid-template-columns: repeat(5,1fr); margin: 58px 0 0; padding: 0; list-style: none; }
.v2-steps li { position: relative; padding: 24px 22px 0; border-top: 1px solid var(--v2-line); }
.v2-steps li::before { content: ""; position: absolute; top: -4px; left: 22px; width: 7px; height: 7px; border-radius: 50%; background: var(--v2-teal); box-shadow: 0 0 0 5px var(--v2-paper); }
.v2-steps li > span { color: #a2a9a5; font-size: 11px; font-weight: 850; letter-spacing: .12em; }
.v2-steps b { display: block; margin-top: 20px; font-size: 18px; }
.v2-steps p { margin: 9px 0 0; color: var(--v2-muted); font-size: 14px; }

.v2-demo-section { background: var(--v2-dark); color: white; }
.v2-demo-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.v2-demo-grid article { display: flex; min-height: 330px; flex-direction: column; padding: 30px; border: 1px solid #323936; background: var(--v2-dark-2); }
.v2-demo-situation { margin: 0; color: var(--v2-teal-bright); font-size: 12px; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.v2-demo-grid h3 { margin-top: 30px; font-size: 25px; line-height: 1.1; }
.v2-demo-grid article > p:not(.v2-demo-situation) { color: #aeb7b2; font-size: 15px; }
.v2-demo-grid article > span { margin-top: auto; padding-top: 24px; border-top: 1px solid #323936; color: #e8edea; font-size: 12px; font-weight: 760; }

.v2-fit { background: var(--v2-bg); }
.v2-fit-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.v2-fit-card { padding: 48px; border: 1px solid var(--v2-line); background: var(--v2-paper); }
.v2-fit-card.not-for { background: transparent; }
.v2-fit-card h2 { font-size: clamp(30px,3.2vw,44px); }
.v2-fit-card ul, .v2-included { margin: 34px 0 0; padding: 0; list-style: none; }
.v2-fit-card li, .v2-included li { position: relative; margin: 13px 0; padding-left: 25px; color: var(--v2-muted); }
.v2-fit-card li::before, .v2-included li::before { content: ""; position: absolute; top: .66em; left: 0; width: 8px; height: 2px; background: var(--v2-teal); }
.v2-fit-card.not-for li::before { background: #8a918d; }

.v2-offer { padding: 110px 0; background: #dfe8e4; }
.v2-offer-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 82px; align-items: center; }
.v2-offer-copy > p:not(.v2-kicker) { max-width: 680px; margin: 26px 0 0; color: #4f5853; font-size: 18px; }
.v2-included { display: grid; grid-template-columns: 1fr 1fr; gap: 0 22px; }
.v2-price-card { padding: 42px; border-top: 4px solid var(--v2-teal); background: var(--v2-dark); color: white; box-shadow: 0 30px 70px rgba(17,21,19,.2); }
.v2-price-label { margin: 0; color: #abb6b0; font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.v2-price { display: flex; align-items: flex-start; margin: 20px 0 0; font-size: clamp(72px,8vw,104px); font-weight: 850; line-height: .9; letter-spacing: -.07em; }
.v2-price span { margin: 9px 8px 0 0; color: var(--v2-teal-bright); font-size: 22px; letter-spacing: 0; }
.v2-payment { margin: 14px 0 28px; color: #abb6b0; font-size: 14px; }
.v2-price-card .button { width: 100%; }
.v2-release-note { margin-top: 28px; padding-top: 24px; border-top: 1px solid #343b38; }
.v2-release-note b { color: #f2f5f3; font-size: 13px; }
.v2-release-note p { margin: 8px 0 0; color: #aab4af; font-size: 12px; line-height: 1.55; }

.v2-faq { background: var(--v2-paper); }
.v2-faq-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 90px; align-items: start; }
.v2-faq-list details { border-top: 1px solid var(--v2-line); padding: 23px 0; }
.v2-faq-list details:last-child { border-bottom: 1px solid var(--v2-line); }
.v2-faq-list summary { cursor: pointer; list-style: none; font-size: 18px; font-weight: 800; }
.v2-faq-list summary::-webkit-details-marker { display: none; }
.v2-faq-list summary::after { content: "+"; float: right; margin-left: 20px; color: var(--v2-teal); font-size: 23px; font-weight: 500; }
.v2-faq-list details[open] summary::after { content: "–"; }
.v2-faq-list p { max-width: 730px; margin: 14px 40px 0 0; color: var(--v2-muted); }

.v2-final { padding: 0 0 108px; background: var(--v2-paper); }
.v2-final-inner { padding: 74px; background: var(--v2-dark); color: white; text-align: center; }
.v2-final-inner .v2-kicker { justify-content: center; color: var(--v2-teal-bright); }
.v2-final-inner h2 { max-width: 900px; margin: 0 auto; }
.v2-final-inner > p:not(.v2-kicker) { max-width: 680px; margin: 25px auto 0; color: #aeb7b2; font-size: 18px; }
.v2-final-inner .button { margin-top: 32px; }
.v2-final-inner small { display: block; margin-top: 16px; color: #909b95; }
.core-footer { background: var(--v2-paper); border-top: 1px solid var(--v2-line); }

@media (max-width: 980px) {
  .v2-hero-grid, .v2-mechanism-grid, .v2-offer-grid, .v2-faq-grid { grid-template-columns: 1fr; }
  .v2-hero-grid { gap: 54px; }
  .v2-mechanism-grid, .v2-offer-grid, .v2-faq-grid { gap: 48px; }
  .v2-problem-grid, .v2-system-grid, .v2-demo-grid { grid-template-columns: repeat(2,1fr); }
  .v2-steps { grid-template-columns: repeat(3,1fr); row-gap: 36px; }
}

@media (max-width: 700px) {
  .core-v2 .wrap { width: min(100% - 30px,1180px); }
  .core-v2 .nav { min-height: 64px; }
  .core-v2 .nav-links a:not(.button) { display: none; }
  .core-v2 .button-compact { min-height: 42px; padding: 8px 12px; font-size: 12px; }
  .core-v2 .brand { max-width: 130px; font-size: 11px; line-height: 1.2; }
  .v2-hero { padding: 56px 0 68px; }
  .v2-hero-grid { gap: 46px; }
  .core-v2 h1 { font-size: clamp(40px,12vw,57px); }
  .core-v2 h2 { font-size: clamp(33px,10vw,45px); }
  .v2-kicker { margin-bottom: 18px; font-size: 10px; }
  .v2-lead { margin-top: 22px; font-size: 17px; }
  .v2-actions .button, .v2-price-card .button, .v2-final-inner .button { width: 100%; }
  .v2-trust { justify-content: center; }
  .v2-hero-visual::before { inset: -8px; }
  .v2-hero-visual figcaption { position: static; margin-top: 12px; border-color: var(--v2-line); background: transparent; color: var(--v2-muted); backdrop-filter: none; }
  .v2-recognition, .v2-section, .v2-offer { padding: 78px 0; }
  .v2-section-intro > p:last-child { font-size: 17px; }
  .v2-problem-grid, .v2-system-grid, .v2-demo-grid, .v2-fit-grid { grid-template-columns: 1fr; }
  .v2-problem-grid article { min-height: auto; padding: 26px 24px; }
  .v2-problem-grid h3 { margin-top: 24px; }
  .v2-mechanism { grid-template-columns: 1fr; }
  .v2-mechanism div { min-height: auto; }
  .v2-mechanism i { transform: rotate(90deg); text-align: center; }
  .v2-section-intro-centered { text-align: left; }
  .v2-section-intro-centered .v2-kicker { justify-content: flex-start; }
  .v2-system-card { min-height: 240px; }
  .v2-steps { grid-template-columns: 1fr; gap: 0; margin-top: 44px; }
  .v2-steps li { display: grid; grid-template-columns: 42px 1fr; gap: 8px; padding: 22px 0; border-top: 1px solid var(--v2-line); }
  .v2-steps li::before { display: none; }
  .v2-steps b { margin-top: 0; }
  .v2-demo-grid article { min-height: 300px; }
  .v2-fit-card { padding: 34px 26px; }
  .v2-included { grid-template-columns: 1fr; }
  .v2-price-card { padding: 34px 24px; }
  .v2-faq-list summary { font-size: 17px; }
  .v2-final { padding-bottom: 78px; }
  .v2-final-inner { padding: 52px 24px; }
}

@media (max-width: 390px) {
  .core-v2 .wrap { width: min(100% - 24px,1180px); }
  .core-v2 h1 { font-size: 39px; }
  .core-v2 .button-large { padding-right: 16px; padding-left: 16px; font-size: 15px; }
  .v2-trust { gap: 7px 0; }
  .v2-trust span + span::before { margin: 0 7px; }
  .v2-system-card { padding: 26px 22px; }
}

@media (prefers-reduced-motion: reduce) { .v2-system-card { transition: none; } }