:root {
  --ink: #0B1F24;
  --ink-2: #12303A;
  --page: #F3F6F5;
  --card: #FFFFFF;
  --brand: #0F766E;
  --brand-bright: #2DD4BF;
  --fail: #C2362B;
  --steel: #2F5D62;
  --muted: #56656A;
  --tint: #DDEDEA;
  --line: #D3DFDC;
  --on-dark: #BFD3CF;
  --on-dark-dim: #8FB3AD;
  --sans: 'Instrument Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;
  --radius: 14px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--page); color: var(--ink); font: 17px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.eyebrow { font: 500 12px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--brand); }
.dark .eyebrow { color: var(--brand-bright); }
h1, h2, h3 { letter-spacing: -.02em; line-height: 1.12; margin: 0; }
h1 { font-size: clamp(40px, 6vw, 68px); font-weight: 700; }
h2 { font-size: clamp(30px, 4vw, 44px); font-weight: 700; }
h3 { font-size: 19px; font-weight: 600; letter-spacing: -.01em; }
p { margin: 0; }
.lede { font-size: 20px; color: var(--muted); max-width: 640px; }
.dark .lede { color: var(--on-dark); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--card); padding: 8px 12px; border-radius: 8px; z-index: 10; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--brand-bright); outline-offset: 3px; border-radius: 4px; }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; font: 600 16px var(--sans); padding: 13px 22px; border-radius: 10px; text-decoration: none; border: 1.5px solid transparent; transition: transform .15s ease, background .15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: var(--brand-bright); color: var(--ink); }
.btn.primary:hover { background: #5EEAD4; }
.btn.ghost { border-color: rgba(191, 211, 207, .35); color: #fff; }
.btn.ghost:hover { border-color: var(--brand-bright); }
.btn.solid { background: var(--brand); color: #fff; }
.btn.solid:hover { background: #0D6560; }

/* nav */
.nav { position: sticky; top: 0; z-index: 5; background: rgba(11, 31, 36, .92); backdrop-filter: saturate(140%) blur(10px); border-bottom: 1px solid rgba(191, 211, 207, .1); }
.nav .wrap { display: flex; align-items: center; gap: 28px; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-weight: 700; font-size: 20px; letter-spacing: -.02em; }
.mark { width: 28px; height: 28px; flex: none; }
.mark .post { stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; fill: none; }
.mark .blade { fill: currentColor; }
.mark .tab { fill: var(--brand-bright); }
.nav ul { display: flex; gap: 4px; list-style: none; margin: 0 0 0 auto; padding: 0; }
.nav ul a { color: var(--on-dark); text-decoration: none; font-size: 15px; padding: 8px 12px; border-radius: 8px; }
.nav ul a:hover { color: #fff; }
.nav .signin { color: var(--on-dark); font-size: 15px; text-decoration: none; }
.nav .signin:hover { color: #fff; }
.nav .btn { padding: 9px 16px; font-size: 15px; }

/* hero */
.dark { background: var(--ink); color: #fff; }
.hero { position: relative; overflow: hidden; padding: 96px 0 104px; }
.hero::before { content: ""; position: absolute; inset: 0; background:
  radial-gradient(700px 380px at 82% 18%, rgba(45, 212, 191, .16), transparent 70%),
  radial-gradient(600px 400px at 8% 100%, rgba(15, 118, 110, .25), transparent 70%); pointer-events: none; }
.hero::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(191,211,207,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(191,211,207,.05) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(180deg, #000 0%, transparent 85%); pointer-events: none; }
.hero .wrap { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero h1 .accent { color: var(--brand-bright); }
.hero .lede { margin-top: 22px; }
.hero .ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 34px; }
.hero .fine { margin-top: 22px; font: 13px var(--mono); color: var(--on-dark-dim); }

/* product mock */
.mock { background: #0F2A31; border: 1px solid rgba(191,211,207,.14); border-radius: 18px; padding: 18px; box-shadow: 0 30px 80px rgba(0,0,0,.35); }
.mock .bar { display: flex; gap: 6px; margin-bottom: 14px; }
.mock .bar i { width: 10px; height: 10px; border-radius: 50%; background: rgba(191,211,207,.2); }
.mock .row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.mock .tile { background: rgba(255,255,255,.04); border: 1px solid rgba(191,211,207,.1); border-radius: 12px; padding: 12px 14px; }
.mock .tile b { display: block; font: 500 10.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--on-dark-dim); }
.mock .tile span { display: block; font-size: 28px; font-weight: 700; margin-top: 4px; }
.mock .tile .t { color: var(--brand-bright); }
.mock .list { margin-top: 12px; background: rgba(255,255,255,.03); border: 1px solid rgba(191,211,207,.1); border-radius: 12px; }
.mock .item { display: flex; align-items: center; gap: 10px; padding: 11px 14px; border-top: 1px solid rgba(191,211,207,.08); font-size: 14px; color: #E6F0EE; }
.mock .item:first-child { border-top: 0; }
.mock .item .id { margin-left: auto; font: 12px var(--mono); color: var(--on-dark-dim); }
.pill { font: 500 10.5px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; padding: 5px 7px; border-radius: 5px; white-space: nowrap; }
.pill.fail { background: var(--fail); color: #fff; }
.pill.fixed { background: rgba(45,212,191,.15); color: var(--brand-bright); }
.pill.pass { background: var(--tint); color: var(--steel); }
.mock .spark { margin-top: 12px; padding: 12px 14px 8px; background: rgba(255,255,255,.03); border: 1px solid rgba(191,211,207,.1); border-radius: 12px; }
.mock .spark b { font: 500 10.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--on-dark-dim); }
.mock .spark polyline { fill: none; stroke: var(--brand-bright); stroke-width: 2.5; stroke-linejoin: round; stroke-linecap: round; }
.mock .spark .area { fill: rgba(45,212,191,.12); stroke: none; }

/* sections */
section { padding: 96px 0; }
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head h2 { margin-top: 14px; }
.section-head .lede { margin-top: 16px; }
.center { text-align: center; margin-left: auto; margin-right: auto; }
.center .lede { margin-left: auto; margin-right: auto; }

/* trust strip */
.strip { padding: 26px 0; background: var(--ink-2); color: var(--on-dark); }
.strip .wrap { display: flex; flex-wrap: wrap; gap: 14px 40px; justify-content: center; font: 13px var(--mono); letter-spacing: .04em; }
.strip span::before { content: "◆"; color: var(--brand-bright); margin-right: 10px; font-size: 10px; }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; }
.step { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; position: relative; }
.step::before { counter-increment: step; content: "0" counter(step); font: 500 13px var(--mono); color: var(--brand); letter-spacing: .1em; }
.step h3 { margin: 14px 0 10px; }
.step p { color: var(--muted); font-size: 16px; }
.step code { font: 13px var(--mono); background: var(--tint); color: var(--steel); padding: 2px 6px; border-radius: 4px; }

/* features */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.feature .ico { width: 42px; height: 42px; border-radius: 10px; background: var(--tint); color: var(--brand); display: grid; place-items: center; margin-bottom: 18px; }
.feature .ico svg { width: 22px; height: 22px; }
.feature h3 { margin-bottom: 8px; }
.feature p { color: var(--muted); font-size: 16px; }

/* explain split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.explain { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: 0 20px 50px rgba(11,31,36,.08); }
.explain .head { display: flex; gap: 10px; align-items: center; justify-content: space-between; }
.explain .head .id { font: 13px var(--mono); color: var(--muted); }
.explain h4 { margin: 10px 0 0; font-size: 18px; }
.explain .box { margin-top: 16px; background: var(--page); border-radius: 10px; padding: 14px 16px; font-size: 15px; }
.explain .lbl { display: block; font: 500 10.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin: 12px 0 3px; }
.explain .lbl:first-child { margin-top: 0; }
.explain .q { color: var(--muted); }
.explain .src { color: var(--brand); text-decoration: underline; text-underline-offset: 3px; }
.checks { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 12px; }
.checks li { display: flex; gap: 12px; font-size: 17px; }
.checks li::before { content: ""; flex: none; width: 22px; height: 22px; margin-top: 3px; border-radius: 50%; background: var(--tint) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230F766E' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5 9-10'/%3E%3C/svg%3E") center/13px no-repeat; }

/* frameworks */
.fw { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.fwcard { border-radius: var(--radius); padding: 28px; border: 1px solid rgba(191,211,207,.14); background: rgba(255,255,255,.03); }
.fwcard .tag { font: 500 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; padding: 5px 8px; border-radius: 5px; background: rgba(45,212,191,.14); color: var(--brand-bright); display: inline-block; }
.fwcard .tag.soon { background: rgba(191,211,207,.1); color: var(--on-dark-dim); }
.fwcard h3 { margin: 16px 0 8px; font-size: 22px; }
.fwcard p { color: var(--on-dark); font-size: 16px; }
.fwcard .num { margin-top: 22px; display: flex; gap: 26px; }
.fwcard .num div { font: 13px var(--mono); color: var(--on-dark-dim); }
.fwcard .num b { display: block; font: 700 30px var(--sans); color: #fff; letter-spacing: -.02em; }
.honest { margin-top: 28px; padding: 20px 24px; border-radius: var(--radius); border: 1px dashed rgba(191,211,207,.3); color: var(--on-dark); font-size: 16px; }
.honest b { color: #fff; }

/* audience */
.audience { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.aud { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.aud h3 { font-size: 24px; margin: 14px 0 12px; }
.aud .checks li { font-size: 16px; }

/* security */
.sec { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.sec div { border-top: 2px solid var(--brand); padding-top: 18px; }
.sec h3 { font-size: 17px; margin-bottom: 8px; }
.sec p { color: var(--muted); font-size: 15px; }

/* faq */
.faq { max-width: 820px; margin: 0 auto; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 0 22px; margin-bottom: 10px; }
.faq summary { cursor: pointer; list-style: none; padding: 20px 0; font-weight: 600; font-size: 18px; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font: 400 24px/1 var(--mono); color: var(--brand); }
.faq details[open] summary::after { content: "−"; }
.faq details p { padding: 0 0 20px; color: var(--muted); font-size: 16px; }

/* cta */
.cta { text-align: center; }
.cta .box { position: relative; overflow: hidden; border-radius: 22px; padding: 72px 32px; background: var(--ink); color: #fff; }
.cta .box::before { content: ""; position: absolute; inset: 0; background: radial-gradient(600px 300px at 50% 0%, rgba(45,212,191,.2), transparent 70%); }
.cta .box > * { position: relative; }
.cta h2 { max-width: 720px; margin: 14px auto 0; }
.cta .lede { margin: 18px auto 0; }
.cta .box .lede { color: var(--on-dark); }
.cta .box .eyebrow { color: var(--brand-bright); }
.cta .ctas { margin-top: 32px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* footer */
footer { background: var(--ink); color: var(--on-dark); padding: 56px 0 40px; font-size: 15px; }
footer .wrap { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
footer h4 { font: 500 12px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--on-dark-dim); margin: 0 0 14px; }
footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
footer a { text-decoration: none; }
footer a:hover { color: #fff; }
footer .copy { grid-column: 1 / -1; border-top: 1px solid rgba(191,211,207,.12); padding-top: 22px; margin-top: 18px; font: 13px var(--mono); color: var(--on-dark-dim); }
footer .tagline { margin-top: 14px; max-width: 300px; }

/* legal pages */
.legal { padding: 72px 0 96px; }
.legal .wrap { max-width: 780px; }
.legal h1 { font-size: clamp(34px, 5vw, 48px); margin: 14px 0 10px; }
.legal .updated { font: 13px var(--mono); color: var(--muted); }
.legal h2 { font-size: 24px; margin: 40px 0 12px; }
.legal p, .legal li { color: #2A3B3F; }
.legal p + p { margin-top: 12px; }
.legal ul { padding-left: 22px; }
.legal li { margin: 6px 0; }
.legal table { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 15px; background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.legal th, .legal td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.legal th { font: 500 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); background: #EDF3F1; }

/* reveal */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
  .reveal.in { opacity: 1; transform: none; }
}

/* responsive */
@media (max-width: 960px) {
  .hero .wrap, .split { grid-template-columns: 1fr; }
  .steps, .features, .fw { grid-template-columns: 1fr 1fr; }
  .sec { grid-template-columns: 1fr 1fr; }
  footer .wrap { grid-template-columns: 1fr 1fr; }
  .nav ul { display: none; }
  .nav .signin { margin-left: auto; }
}
@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  section { padding: 72px 0; }
  .hero { padding: 64px 0 72px; }
  .steps, .features, .fw, .audience, .sec { grid-template-columns: 1fr; }
  .mock .row { grid-template-columns: 1fr 1fr 1fr; gap: 6px; }
  .mock .tile span { font-size: 22px; }
  .nav .signin { display: none; }
  .nav .btn { margin-left: auto; }
  footer .wrap { grid-template-columns: 1fr; }
}

/* sign-up form (inside the dark CTA box) */
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.signup { max-width: 600px; margin: 34px auto 0; }
.signup .row { display: flex; gap: 10px; }
.signup .row.opt { margin-top: 10px; }
.signup input { flex: 1; min-width: 0; font: 16px var(--sans); padding: 14px 16px; border-radius: 10px; border: 1px solid rgba(191, 211, 207, .28); background: rgba(255, 255, 255, .08); color: #fff; transition: border-color .15s ease, background .15s ease; }
.signup .row.opt input { font-size: 15px; padding: 11px 14px; background: rgba(255, 255, 255, .05); border-color: rgba(191, 211, 207, .18); }
.signup input::placeholder { color: var(--on-dark-dim); opacity: 1; }
.signup input:hover { border-color: rgba(191, 211, 207, .45); }
.signup input:focus { outline: none; border-color: var(--brand-bright); background: rgba(255, 255, 255, .1); box-shadow: 0 0 0 3px rgba(45, 212, 191, .2); }
.signup .btn { flex: none; border: 0; cursor: pointer; padding: 14px 22px; }
.signup .btn:disabled { opacity: .6; cursor: progress; transform: none; }
.signup .formmsg { margin-top: 14px; min-height: 0; font-weight: 600; color: var(--on-dark); }
.signup .formmsg:empty { display: none; }
.signup .formmsg.ok { color: var(--brand-bright); }
.signup .formmsg.err { color: #F0A79F; }
.signup .formnote { margin-top: 14px; font-size: 13.5px; color: var(--on-dark-dim); }
.signup .formnote a { color: var(--on-dark); margin-left: 4px; }
@media (max-width: 640px) {
  /* Stack all fields first, then the button, message, and note. */
  .signup { display: flex; flex-direction: column; gap: 10px; }
  .signup .row { display: contents; }
  .signup .btn { order: 2; width: 100%; justify-content: center; margin-top: 4px; }
  .signup .formmsg { order: 3; margin-top: 4px; }
  .signup .formnote { order: 4; margin-top: 4px; }
}