:root {
  color-scheme: dark;
  --ink: #f7f9ff;
  --muted: #aebbd1;
  --muted-strong: #ced8e9;
  --surface: #0d1c37;
  --surface-raised: #122443;
  --border: rgb(160 190 239 / 20%);
  --brand: #46b2ff;
  --accent: #61e6c1;
  --warning: #ffd18b;
  --shadow: 0 24px 70px rgb(0 0 0 / 28%);
  --radius-lg: 28px;
  --radius-md: 18px;
  --content: 1160px;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 85% 4%, rgb(22 118 247 / 20%), transparent 30rem),
    radial-gradient(circle at 0 28%, rgb(52 224 185 / 9%), transparent 28rem),
    #071329;
  color: var(--ink);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--brand);
}

a:hover {
  color: #8bd2ff;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  background: #fff;
  color: #071329;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(var(--content), calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid rgb(160 190 239 / 12%);
  background: rgb(7 19 41 / 88%);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: -.02em;
  text-decoration: none;
}

.brand:hover {
  color: var(--ink);
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid rgb(139 210 255 / 40%);
  border-radius: 11px;
  background: linear-gradient(145deg, #1d83f4, #1553c7);
  box-shadow: 0 7px 22px rgb(26 111 235 / 28%);
  color: #fff;
  font-size: .98rem;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 24px;
}

.site-nav a {
  color: var(--muted-strong);
  font-size: .92rem;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: #fff;
}

.site-nav .nav-cta {
  padding: 9px 14px;
  border: 1px solid rgb(105 202 255 / 34%);
  border-radius: 10px;
  background: rgb(31 115 230 / 18%);
  color: #dff3ff;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(76px, 10vw, 132px) 0 82px;
}

.hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: 30px;
  right: max(-190px, calc((100vw - var(--content)) / 2 - 260px));
  width: 570px;
  aspect-ratio: 1;
  border: 1px solid rgb(73 178 255 / 13%);
  border-radius: 50%;
  background:
    radial-gradient(circle, rgb(49 144 255 / 22%) 0 3%, transparent 3.2%),
    radial-gradient(circle, rgb(30 107 221 / 17%), transparent 65%);
  box-shadow: inset 0 0 90px rgb(74 182 255 / 11%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr);
  align-items: center;
  gap: clamp(40px, 7vw, 92px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 18px;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 18px var(--accent);
}

h1,
h2,
h3 {
  margin-top: 0;
  color: #fff;
  line-height: 1.12;
  letter-spacing: -.035em;
}

h1 {
  max-width: 14ch;
  margin-bottom: 22px;
  font-size: clamp(2.75rem, 6vw, 5.5rem);
}

h2 {
  max-width: 19ch;
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 3.4rem);
}

h3 {
  margin-bottom: 10px;
  font-size: 1.24rem;
  letter-spacing: -.02em;
}

.hero-copy,
.section-lead {
  max-width: 66ch;
  color: var(--muted-strong);
  font-size: clamp(1.07rem, 2vw, 1.22rem);
}

.hero-copy {
  margin: 0 0 30px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.beta-disclosure {
  max-width: 66ch;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.55;
}

.beta-disclosure strong {
  color: var(--warning);
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: linear-gradient(135deg, #2c9af5, #1766db);
  box-shadow: 0 12px 34px rgb(20 105 222 / 28%);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
}

.button:hover {
  background: linear-gradient(135deg, #4aaaf8, #2677e8);
  color: #fff;
}

.button.secondary {
  border-color: var(--border);
  background: rgb(255 255 255 / 5%);
  box-shadow: none;
  color: #e7efff;
}

.hero-panel {
  position: relative;
  padding: 28px;
  border: 1px solid rgb(124 189 255 / 22%);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgb(23 49 88 / 90%), rgb(10 27 54 / 90%));
  box-shadow: var(--shadow);
}

.panel-kicker {
  margin: 0 0 20px;
  color: #8acaff;
  font-size: .79rem;
  font-weight: 800;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.proof-list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.proof-list li {
  position: relative;
  padding-left: 30px;
  color: var(--muted-strong);
}

.proof-list li::before {
  content: "\2713";
  position: absolute;
  top: 1px;
  left: 0;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgb(97 230 193 / 14%);
  color: var(--accent);
  font-size: .73rem;
  font-weight: 900;
}

.trust-strip {
  border-block: 1px solid rgb(160 190 239 / 13%);
  background: rgb(9 25 51 / 72%);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.trust-item {
  padding: 24px 22px;
  border-left: 1px solid rgb(160 190 239 / 13%);
}

.trust-item:last-child {
  border-right: 1px solid rgb(160 190 239 / 13%);
}

.trust-item strong,
.trust-item span {
  display: block;
}

.trust-item strong {
  color: #fff;
  font-size: .96rem;
}

.trust-item span {
  margin-top: 3px;
  color: var(--muted);
  font-size: .82rem;
}

.section {
  padding: clamp(72px, 9vw, 118px) 0;
}

.section.compact {
  padding-block: 62px;
}

.section.soft {
  border-block: 1px solid rgb(160 190 239 / 11%);
  background: rgb(13 31 60 / 62%);
}

.section-heading {
  margin-bottom: 42px;
}

.section-heading .section-lead {
  margin-bottom: 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: linear-gradient(150deg, rgb(22 44 80 / 83%), rgb(11 28 55 / 84%));
  box-shadow: 0 16px 44px rgb(0 0 0 / 13%);
}

.card p,
.card li {
  color: var(--muted);
}

.card p:last-child,
.card ul:last-child {
  margin-bottom: 0;
}

.card-number {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  border: 1px solid rgb(88 185 255 / 34%);
  border-radius: 12px;
  background: rgb(35 127 234 / 16%);
  color: #82cbff;
  font-weight: 900;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, .85fr);
  align-items: start;
  gap: clamp(42px, 7vw, 88px);
}

.feature-list {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  padding: 0 0 18px;
  border-bottom: 1px solid rgb(160 190 239 / 14%);
  color: var(--muted);
}

.feature-list li:last-child {
  border-bottom: 0;
}

.feature-list strong {
  display: block;
  margin-bottom: 4px;
  color: #fff;
}

.note {
  padding: 24px 26px;
  border: 1px solid rgb(255 209 139 / 30%);
  border-radius: var(--radius-md);
  background: rgb(104 69 25 / 18%);
  color: #f3dfc3;
}

.note strong {
  color: var(--warning);
}

.quote {
  margin: 0;
  padding: 30px;
  border-left: 1px solid var(--border);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: rgb(18 46 78 / 72%);
  color: #dfe9f8;
  font-size: 1.08rem;
}

.workflow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  counter-reset: workflow;
}

.workflow > div {
  position: relative;
  padding: 64px 22px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgb(15 34 66 / 72%);
  counter-increment: workflow;
}

.workflow > div::before {
  content: counter(workflow, decimal-leading-zero);
  position: absolute;
  top: 20px;
  left: 22px;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .08em;
}

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

.faq {
  display: grid;
  gap: 14px;
  max-width: 900px;
}

.faq details {
  border: 1px solid var(--border);
  border-radius: 15px;
  background: rgb(14 34 65 / 78%);
}

.faq summary {
  cursor: pointer;
  padding: 20px 54px 20px 22px;
  color: #fff;
  font-weight: 780;
}

.faq details p {
  max-width: 74ch;
  margin: 0;
  padding: 0 22px 22px;
  color: var(--muted);
}

.final-cta {
  padding: clamp(36px, 6vw, 64px);
  border: 1px solid rgb(90 187 255 / 27%);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 92% 20%, rgb(67 183 255 / 22%), transparent 18rem),
    linear-gradient(135deg, #122d58, #0c2246);
  box-shadow: var(--shadow);
}

.final-cta h2 {
  max-width: 22ch;
  margin-bottom: 14px;
}

.final-cta p {
  max-width: 65ch;
  margin: 0 0 26px;
  color: var(--muted-strong);
  font-size: 1.08rem;
}

.final-cta .beta-disclosure {
  margin: -10px 0 22px;
  color: var(--muted);
  font-size: .9rem;
}

.paper-hero h1 {
  max-width: 15ch;
  font-size: clamp(2.6rem, 5.4vw, 5rem);
}

.paper-meta {
  display: grid;
  gap: 14px;
  margin: 0;
}

.paper-meta div {
  display: grid;
  grid-template-columns: minmax(90px, .7fr) minmax(0, 1.3fr);
  gap: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgb(160 190 239 / 14%);
}

.paper-meta div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.paper-meta dt {
  color: var(--muted);
  font-size: .83rem;
}

.paper-meta dd {
  margin: 0;
  color: #fff;
  font-size: .91rem;
  font-weight: 750;
}

.assurance-banner {
  padding: 24px 26px;
  border: 1px solid rgb(255 209 139 / 34%);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgb(104 69 25 / 24%), rgb(58 48 41 / 16%));
  color: #f3dfc3;
}

.assurance-banner strong {
  display: block;
  margin-bottom: 4px;
  color: var(--warning);
}

.paper-section {
  padding-top: 32px;
}

.paper-layout {
  display: grid;
  grid-template-columns: minmax(210px, .31fr) minmax(0, 1fr);
  align-items: start;
  gap: clamp(40px, 7vw, 90px);
}

.paper-toc {
  position: sticky;
  top: 104px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgb(10 28 56 / 86%);
}

.paper-toc ol {
  display: grid;
  gap: 9px;
  margin: 0;
  padding-left: 21px;
  color: #70839f;
  font-size: .87rem;
}

.paper-toc a {
  color: var(--muted-strong);
  text-decoration: none;
}

.paper-toc a:hover {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.paper-article {
  min-width: 0;
}

.paper-article h2 {
  max-width: 24ch;
  font-size: clamp(1.9rem, 3.3vw, 3rem);
}

.paper-article h3 {
  margin-top: 0;
  font-size: clamp(1.3rem, 2.2vw, 1.65rem);
}

.paper-article p,
.paper-article li {
  color: var(--muted-strong);
}

.paper-article p,
.paper-article ul {
  max-width: 78ch;
}

.paper-article li + li {
  margin-top: 10px;
}

.paper-article code {
  overflow-wrap: anywhere;
  padding: .12em .35em;
  border: 1px solid rgb(139 210 255 / 15%);
  border-radius: 6px;
  background: rgb(2 12 28 / 58%);
  color: #cbeaff;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: .86em;
}

.paper-block {
  scroll-margin-top: 104px;
  margin-top: 76px;
  padding-top: 76px;
  border-top: 1px solid rgb(160 190 239 / 15%);
}

.paper-subsection {
  scroll-margin-top: 104px;
  margin-top: 46px;
  padding: 28px;
  border: 1px solid rgb(160 190 239 / 15%);
  border-radius: var(--radius-md);
  background: rgb(13 31 60 / 48%);
}

.paper-subsection p:last-child {
  margin-bottom: 0;
}

.paper-anchor {
  scroll-margin-top: 104px;
}

.evidence {
  padding: 16px 18px;
  border-left: 1px solid var(--border);
  background: rgb(27 70 111 / 25%);
  font-size: .88rem;
}

.evidence strong {
  color: #fff;
}

.table-scroll {
  max-width: 100%;
  margin: 28px 0;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgb(8 23 48 / 74%);
  box-shadow: 0 18px 48px rgb(0 0 0 / 13%);
}

.table-scroll:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.technical-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: .9rem;
  line-height: 1.5;
}

.technical-table th,
.technical-table td {
  padding: 17px 18px;
  border-bottom: 1px solid rgb(160 190 239 / 13%);
  text-align: left;
  vertical-align: top;
}

.technical-table thead th {
  background: rgb(27 61 104 / 67%);
  color: #fff;
  font-size: .78rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.technical-table tbody th {
  width: 22%;
  color: #fff;
  font-weight: 760;
}

.technical-table td {
  color: var(--muted-strong);
}

.technical-table tbody tr:last-child th,
.technical-table tbody tr:last-child td {
  border-bottom: 0;
}

.visibility-table tbody th {
  width: 13%;
}

.limitation-list {
  display: grid;
  gap: 14px;
  margin: 28px 0;
  padding: 0;
  list-style: none;
}

.limitation-list li {
  max-width: 78ch;
  padding: 22px 24px;
  border: 1px solid rgb(255 209 139 / 19%);
  border-radius: 14px;
  background: rgb(73 52 27 / 15%);
}

.limitation-list strong {
  display: block;
  margin-bottom: 5px;
  color: var(--warning);
}

.site-footer {
  padding: 36px 0 48px;
  border-top: 1px solid rgb(160 190 239 / 13%);
  color: var(--muted);
  font-size: .9rem;
}

.footer-inner,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.footer-links {
  justify-content: flex-end;
}

.footer-links a {
  color: var(--muted-strong);
  text-decoration: none;
}

@media (max-width: 900px) {
  .site-header {
    position: static;
  }

  .header-inner {
    padding-block: 18px;
    align-items: flex-start;
  }

  .site-nav {
    gap: 12px 18px;
    flex-wrap: wrap;
  }

  .hero-grid,
  .split,
  .paper-layout {
    grid-template-columns: 1fr;
  }

  .paper-toc {
    position: static;
  }

  .hero-panel {
    max-width: 660px;
  }

  .trust-grid,
  .workflow {
    grid-template-columns: repeat(2, 1fr);
  }

  .card-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 650px) {
  .shell {
    width: min(100% - 28px, var(--content));
  }

  .header-inner,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav a:not(.nav-cta) {
    display: none;
  }

  .hero {
    padding-top: 64px;
  }

  h1 {
    font-size: clamp(2.65rem, 14vw, 4rem);
  }

  .trust-grid,
  .workflow,
  .card-grid,
  .card-grid.two {
    grid-template-columns: 1fr;
  }

  .trust-item,
  .trust-item:last-child {
    border-right: 1px solid rgb(160 190 239 / 13%);
  }

  .trust-item + .trust-item {
    border-top: 1px solid rgb(160 190 239 / 13%);
  }

  .actions .button {
    width: 100%;
  }

  .paper-subsection {
    padding: 22px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

/* Shared public-site palette and restrained document rhythm. */
:root { --ink: #f3f6fc; --muted: #b8c5d9; --muted-strong: #cfdaeb; --surface: #142033; --surface-raised: #1a2940; --border: #34445c; --brand: #a9c7ff; --accent: #a9c7ff; --radius-lg: 14px; --radius-md: 12px; --shadow: none; }
body { background: #0b1320; }
::selection { background: #345d99; color: #fff; }
a { text-underline-offset: .2em; }
.site-header { background: #101c30; backdrop-filter: none; }
.header-inner { min-height: 64px; }
.hero { padding: clamp(40px, 6vw, 72px) 0 56px; }
.hero::after { content: none; }
h1 { max-width: 20ch; font-size: clamp(2.3rem, 4.3vw, 3.6rem); }
h2 { max-width: 28ch; font-size: clamp(1.8rem, 3vw, 2.6rem); }
.brand-mark, .hero-panel, .card, .final-cta, .notice { background: var(--surface); box-shadow: none; }
.button { background: #a9c7ff; color: #10213c; box-shadow: none; }
.button:hover { background: #c5daff; color: #10213c; }
.button.secondary { color: var(--ink); }
.card { border: 0; border-top: 1px solid var(--border); border-radius: 0; background: transparent; padding-inline: 0; }
.panel-kicker { letter-spacing: 0; text-transform: none; font-size: 1rem; }
.proof-list li::before { content: ''; width: 7px; height: 7px; top: .65em; border-radius: 50%; background: var(--brand); }
@media (max-width: 700px) { .hero { padding-top: 32px; } .hero-grid { gap: 28px; } .hero-panel { padding: 20px; } }
/* Keep navigation beside the wordmark on phones, without a second signup CTA. */
@media (max-width: 650px) {
  .header-inner { flex-direction: row; align-items: center; gap: 16px; min-height: 64px; padding-block: 12px; }
  .site-nav { flex-wrap: nowrap; gap: 16px; }
  .site-nav a:not(.nav-cta) { display: inline; font-size: .85rem; }
}
body[data-growth-entry-page="resources"] .hero { padding-bottom: 16px; }
body[data-growth-entry-page="resources"] .section { padding-block: 28px; }
body[data-growth-entry-page="resources"] .section-heading { margin-bottom: 20px; }
body[data-growth-entry-page="resources"] .card { padding-block: 18px; }