:root {
  --ink: #12131a;
  --muted: #67707d;
  --paper: #fbf9ff;
  --soft: #f3f4ff;
  --white: #ffffff;
  --line: rgba(42, 38, 72, 0.1);
  --cyan: #35c8d3;
  --pink: #e46ec6;
  --violet: #9783e7;
  --blue: #49aee2;
  --max: 1120px;
  --measure: 760px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(ellipse 72vw 58vh at 9% 3%, rgba(53, 200, 211, 0.2), transparent 72%),
    radial-gradient(ellipse 62vw 58vh at 93% 10%, rgba(151, 131, 231, 0.2), transparent 72%),
    radial-gradient(ellipse 64vw 64vh at 18% 95%, rgba(228, 110, 198, 0.15), transparent 74%),
    linear-gradient(150deg, #fbf9ff 0%, #f5fbff 46%, #fff7fc 100%);
  background-attachment: fixed;
  background-repeat: no-repeat;
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: #6f57d8;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 16px 28px;
  background: rgba(253, 250, 255, 0.76);
  backdrop-filter: blur(18px);
}

.brand,
.nav-links {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 760;
}

.brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.nav-links {
  justify-content: center;
  gap: 24px;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 620;
}

.header-cta {
  justify-self: end;
  padding: 9px 13px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: inset 0 0 0 1px var(--line);
  font-size: 0.92rem;
  font-weight: 720;
}

.hero {
  min-height: 78svh;
  display: flex;
  align-items: center;
  padding: 132px 28px 76px;
}

.hero-inner {
  width: min(100%, var(--max));
  margin: 0 auto;
  text-align: center;
}

.hero-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 28px;
  border-radius: 16px;
  box-shadow: 0 14px 36px rgba(18, 26, 23, 0.12);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  max-width: 820px;
  letter-spacing: 0;
  line-height: 1.02;
}

h1 {
  margin-right: auto;
  margin-left: auto;
  margin-bottom: 18px;
  font-size: 6.6rem;
  font-weight: 820;
}

h2 {
  margin-bottom: 24px;
  font-size: 3.65rem;
  font-weight: 790;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.06rem;
  letter-spacing: 0;
}

.hero-copy {
  margin: 0 auto 16px;
  max-width: 680px;
  color: #24293a;
  font-size: 1.6rem;
  line-height: 1.35;
}

.hero-description {
  max-width: 720px;
  margin: 0 auto 32px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.64;
}

.hero-note {
  margin: 18px auto 0;
  max-width: 620px;
  color: var(--muted);
  font-size: 0.96rem;
}

.hero-note a {
  color: var(--ink);
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 8px;
  font-weight: 760;
  line-height: 1.1;
}

.button.primary {
  background: var(--ink);
  color: var(--white);
}

.button.primary:hover {
  color: var(--white);
  background: #272238;
}

.button.secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.68);
  color: var(--ink);
}

.button.secondary:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.92);
}

.section {
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 136px 28px;
}

.statement,
.fit,
.evidence,
.questions {
  max-width: 900px;
}

.statement p,
.fit p,
.evidence p {
  max-width: var(--measure);
  color: var(--muted);
  font-size: 1.22rem;
}

.statement {
  min-height: 58svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.product {
  width: min(100%, 1280px);
  padding-top: 36px;
}

.product figure {
  position: relative;
  isolation: isolate;
  width: min(100%, 1080px);
  margin: 0 auto;
}

.product figure::after {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  content: "";
  background:
    radial-gradient(circle at 12% 20%, rgba(53, 200, 211, 0.32), transparent 31%),
    radial-gradient(circle at 88% 10%, rgba(151, 131, 231, 0.34), transparent 32%),
    radial-gradient(circle at 24% 88%, rgba(228, 110, 198, 0.24), transparent 34%);
  mix-blend-mode: color;
  opacity: 0.22;
}

.product img {
  background: var(--soft);
}

.principles {
  width: 100%;
  max-width: none;
  padding-top: 152px;
  padding-bottom: 152px;
  padding-right: max(28px, calc((100vw - var(--max)) / 2));
  padding-left: max(28px, calc((100vw - var(--max)) / 2));
}

.principles h2 {
  margin-left: 0;
}

.principle-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 64px;
}

.principle-list p {
  margin-bottom: 0;
  color: var(--muted);
}

.faq-list {
  margin-top: 54px;
}

.faq-item {
  border-bottom: 1px solid rgba(42, 38, 72, 0.13);
  padding: 24px 0;
}

.faq-item:first-child {
  border-top: 1px solid rgba(42, 38, 72, 0.13);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  cursor: pointer;
  list-style: none;
  color: var(--ink);
  font-size: 1.22rem;
  font-weight: 760;
  line-height: 1.25;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  flex: 0 0 auto;
  color: #6f57d8;
  content: "+";
  font-size: 1.35rem;
  font-weight: 520;
  line-height: 1;
}

.faq-item[open] summary::after {
  content: "-";
}

.faq-item p {
  max-width: var(--measure);
  margin: 14px 56px 0 0;
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.62;
}

.faq-item a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: rgba(111, 87, 216, 0.36);
  text-underline-offset: 3px;
}

.evidence-note {
  margin-top: 24px;
  font-size: 0.98rem !important;
}

.final-cta {
  padding: 132px 28px;
  text-align: center;
  background: #12131a;
  color: var(--white);
}

.final-cta h2 {
  margin-right: auto;
  margin-left: auto;
  margin-bottom: 28px;
}

.final-cta .button {
  background: var(--white);
  color: var(--ink);
}

.site-footer {
  padding: 72px max(28px, calc((100vw - var(--max)) / 2)) 40px;
  color: #d5d2e6;
  background: #11121a;
  font-size: 0.95rem;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 56px;
  margin-bottom: 54px;
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  color: var(--white);
  font-weight: 760;
}

.footer-logo:hover {
  color: var(--white);
}

.footer-logo img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.footer-brand p {
  margin-bottom: 0;
  color: #aeb5c8;
  font-size: 0.96rem;
  line-height: 1.55;
}

.footer-links {
  display: flex;
  align-items: flex-start;
  gap: 58px;
}

.footer-col {
  display: flex;
  min-width: 104px;
  flex-direction: column;
  gap: 9px;
}

.footer-col h4 {
  margin: 0 0 4px;
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-col a {
  color: #aeb5c8;
  font-size: 0.94rem;
}

.footer-col a:hover,
.footer-bottom a:hover {
  color: var(--white);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #aeb5c8;
  font-size: 0.86rem;
}

.footer-bottom a {
  color: var(--white);
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: auto auto;
  }

  .nav-links {
    display: none;
  }

  h1 {
    font-size: 4.8rem;
  }

  h2 {
    font-size: 2.8rem;
  }

  .hero {
    min-height: 72svh;
  }

  .principle-list {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .footer-grid,
  .footer-links {
    flex-direction: column;
  }

  .footer-grid {
    gap: 34px;
  }

  .footer-links {
    gap: 26px;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 12px 16px;
  }

  .header-cta {
    padding: 8px 10px;
  }

  .hero {
    min-height: 74svh;
    padding: 112px 18px 58px;
  }

  .hero-icon {
    width: 64px;
    height: 64px;
  }

  h1 {
    font-size: 4rem;
  }

  h2 {
    font-size: 2.25rem;
  }

  .hero-copy {
    font-size: 1.28rem;
  }

  .button {
    width: 100%;
  }

  .section,
  .principles {
    padding: 88px 18px;
  }

  .product {
    padding-top: 36px;
  }

  .faq-list {
    margin-top: 38px;
  }

  .faq-item {
    padding: 20px 0;
  }

  .faq-item summary {
    gap: 16px;
    font-size: 1.08rem;
  }

  .faq-item p {
    margin-right: 0;
    font-size: 1rem;
  }

  .site-footer {
    padding: 54px 18px 32px;
  }
}