:root {
  --deep: #000919;
  --ink: #05152e;
  --ink-2: #0b2142;
  --cyan: #00b3d9;
  --mint: #11bf99;
  --paper: #f5f9fb;
  --mist: #e6f0f4;
  --line: #d3e1e8;
  --text: #1c2f47;
  --muted: #475b72;
  --on-dark: #c3d0df;
  --on-dark-strong: #f2f6fa;
  --display: "Outfit", "Segoe UI", system-ui, sans-serif;
  --body: "Public Sans", "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--body);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--display); line-height: 1.12; margin: 0; text-wrap: balance; letter-spacing: -0.01em; }
p { margin: 0; }
ul, ol, dl, dd { list-style: none; margin: 0; padding: 0; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; border-radius: 4px; }

.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }

/* header */
.top { background: var(--deep); border-bottom: 1px solid rgba(255, 255, 255, 0.08); position: sticky; top: 0; z-index: 10; }
.top-row { display: flex; align-items: center; gap: 28px; padding-block: 12px; }
.brand img { width: 150px; height: auto; }
.top-nav { display: flex; gap: 22px; margin-left: auto; font-size: 0.93rem; color: var(--on-dark); }
.top-nav a { text-decoration: none; padding: 6px 2px; }
.top-nav a:hover { color: var(--on-dark-strong); }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 22px; border-radius: 8px; font-family: var(--display); font-weight: 600; font-size: 1rem; text-decoration: none; border: 2px solid transparent; transition: background 0.15s ease, border-color 0.15s ease; }
.button-solid { background: var(--cyan); color: var(--deep); }
.button-solid:hover { background: #33c6e6; }
.button-line { border-color: rgba(255, 255, 255, 0.35); color: var(--on-dark-strong); }
.button-line:hover { border-color: var(--on-dark-strong); }
.button-block { width: 100%; }
.top .button { min-height: 40px; padding: 0 16px; font-size: 0.95rem; }

/* hero */
.hero { background: var(--deep); color: var(--on-dark-strong); padding-block: 72px 80px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: 48px; align-items: center; }
.eyebrow { font-family: var(--display); font-weight: 600; font-size: 0.82rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--mint); margin-bottom: 18px; }
.eyebrow-dark { color: #0a8f74; }
.hero h1 { font-size: clamp(2.1rem, 4.9vw, 3.5rem); font-weight: 600; max-width: 17ch; }
.lead { margin-top: 22px; font-size: 1.14rem; color: var(--on-dark); max-width: 56ch; }
.lead-dark { color: var(--muted); }
.actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 34px; }
.chips li { font-size: 0.82rem; color: var(--on-dark); border: 1px solid rgba(255, 255, 255, 0.18); border-radius: 999px; padding: 4px 12px; }
.hero-art img { width: min(430px, 100%); margin-inline: auto; }

/* sections */
.section { padding-block: 84px; }
.section-head { max-width: 64ch; margin-bottom: 44px; }
.section h2 { font-size: clamp(1.65rem, 3.2vw, 2.4rem); font-weight: 600; }
.section-ink { background: var(--ink); color: var(--on-dark-strong); }
.section-ink .lead { color: var(--on-dark); }
.section-mist { background: var(--mist); }
.fineprint { margin-top: 26px; font-size: 0.92rem; color: var(--on-dark); max-width: 72ch; }
.fineprint-dark { color: var(--muted); }
.fineprint.wrap { margin-top: 30px; }

/* modules: lines, not boxes */
.modules { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 36px 40px; }
.modules li { border-top: 2px solid var(--ink); padding-top: 20px; }
.modules svg { width: 30px; height: 30px; fill: none; stroke: var(--cyan); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 14px; }
.modules h3 { font-size: 1.22rem; font-weight: 600; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.modules p { margin-top: 8px; color: var(--muted); font-size: 1rem; }
.modules .soon { border-top-style: dashed; }
.tag { font-family: var(--body); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink); background: var(--mist); border-radius: 999px; padding: 3px 10px; }

/* Lia */
.split { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: 56px; align-items: start; }
.checks { margin-top: 26px; display: grid; gap: 12px; }
.checks li { position: relative; padding-left: 28px; color: var(--on-dark-strong); }
.checks li::before { content: ""; position: absolute; left: 4px; top: 0.5em; width: 11px; height: 6px; border-left: 3px solid var(--mint); border-bottom: 3px solid var(--mint); transform: rotate(-45deg); }
.chat { margin: 0; background: var(--deep); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 16px; padding: 22px; display: grid; gap: 12px; }
.chat figcaption { font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--on-dark); margin-bottom: 4px; }
.bubble { max-width: 88%; padding: 11px 15px; border-radius: 14px; font-size: 0.98rem; line-height: 1.45; }
.bubble-in { background: #14243f; color: var(--on-dark-strong); border-bottom-left-radius: 4px; }
.bubble-out { background: var(--mint); color: var(--deep); margin-left: auto; border-bottom-right-radius: 4px; }
.engines { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; margin-top: 56px; border-top: 1px solid rgba(255, 255, 255, 0.14); }
.engines article { padding: 28px 28px 8px 0; }
.engines article + article { padding-left: 28px; border-left: 1px solid rgba(255, 255, 255, 0.14); }
.kicker { font-family: var(--display); font-weight: 600; font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--cyan); }
.engines h3 { font-size: 1.3rem; font-weight: 600; margin-top: 8px; }
.engines p:last-child { margin-top: 8px; color: var(--on-dark); font-size: 0.98rem; }

/* two columns of plain lists */
.duo { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 64px; }
.plain { margin-top: 24px; display: grid; gap: 0; border-top: 1px solid var(--line); }
.plain li { padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--muted); }
.plain strong { color: var(--ink); font-weight: 600; }
.section-mist .plain, .section-mist .plain li { border-color: #c4d6df; }

/* steps: a real sequence */
.steps { display: grid; gap: 0; counter-reset: step; border-top: 2px solid var(--ink); }
.steps-three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.steps-four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.steps li { counter-increment: step; padding: 22px 24px 8px 0; }
.steps li + li { padding-left: 24px; border-left: 1px solid var(--line); }
.steps li::before { content: counter(step); font-family: var(--display); font-weight: 600; font-size: 0.95rem; color: #0a8f74; display: block; margin-bottom: 8px; }
.steps h3 { font-size: 1.25rem; font-weight: 600; }
.steps p { margin-top: 8px; color: var(--muted); font-size: 1rem; }

/* security layers */
.layers { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 48px; border-top: 1px solid rgba(255, 255, 255, 0.16); }
.layers div { padding: 20px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.16); }
.layers dt { font-family: var(--display); font-weight: 600; font-size: 1.1rem; color: var(--on-dark-strong); }
.layers dd { margin-top: 6px; color: var(--on-dark); font-size: 0.98rem; }

/* contact */
.contact { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr); gap: 48px; align-items: center; }
.contact-list { margin-top: 26px; display: grid; gap: 10px; }
.contact-list li { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 14px; font-size: 1.08rem; color: var(--ink); }
.contact-list .label { font-family: var(--display); font-weight: 600; font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: #0a8f74; min-width: 74px; }
.contact-list a { color: var(--ink); font-weight: 600; text-underline-offset: 3px; }
.contact-list a:hover { color: #0a6f8a; }
.button-whats { margin-top: 24px; background: var(--mint); color: var(--deep); gap: 10px; }
.button-whats:hover { background: #3fd0b0; }
.whats-icon { width: 20px; height: 20px; fill: currentColor; flex: none; }
.whats-link { display: inline-flex; vertical-align: middle; margin-left: 6px; color: var(--mint); }
.whats-link:hover { color: #3fd0b0; }
.whats-link .whats-icon { width: 22px; height: 22px; }
.contact-card { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 28px; display: grid; gap: 14px; }
.card-title { font-family: var(--display); font-weight: 600; font-size: 1.15rem; color: var(--ink); }
.small { font-size: 0.92rem; color: var(--muted); }

/* footer */
.footer { background: var(--deep); color: var(--on-dark); padding-block: 36px; font-size: 0.92rem; }
.footer-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 32px; }
.footer-row img { width: 120px; height: auto; }
.footer-row nav { margin-left: auto; display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-row nav a { color: var(--on-dark-strong); text-decoration: none; }
.footer-row nav a:hover { text-decoration: underline; }
.footer-row p a { color: var(--on-dark-strong); }

/* 404 */
.hero-full { min-height: 100vh; display: grid; align-items: center; }
.mark-404 { margin-bottom: 36px; }

@media (max-width: 900px) {
  .top-nav { display: none; }
  .top .button { margin-left: auto; }
  .hero { padding-block: 48px 52px; }
  .hero-grid, .split, .duo, .contact { grid-template-columns: 1fr; gap: 36px; }
  .hero-art img { width: min(300px, 70%); }
  .section { padding-block: 60px; }
  .engines, .layers, .steps-three, .steps-four { grid-template-columns: 1fr; }
  .engines article, .engines article + article { padding: 22px 0 6px; border-left: 0; }
  .engines article + article { border-top: 1px solid rgba(255, 255, 255, 0.14); }
  .steps li, .steps li + li { padding: 20px 0 6px; border-left: 0; }
  .steps li + li { border-top: 1px solid var(--line); }
  .footer-row nav { margin-left: 0; }
}

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