:root {
  --ink: #16202e;
  --ink-soft: #3b4658;
  --muted: #5d6879;
  --line: #e3e7ee;
  --paper: #ffffff;
  --paper-alt: #f5f7fa;
  --accent: #14998c;
  --accent-strong: #0f7d72;
  --accent-tint: #e4f5f3;
  --hero: #16202e;
  --hero-text: #e9eef5;
  --hero-muted: #a9b4c4;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(22, 32, 46, .06), 0 8px 24px rgba(22, 32, 46, .06);
  --max: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}

img, svg { display: block; max-width: 100%; }

a { color: var(--accent-strong); }
a:hover { color: var(--ink); }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.skip-link {
  position: absolute; left: 16px; top: -48px;
  background: var(--paper); color: var(--ink);
  padding: 8px 14px; border-radius: 8px; z-index: 10;
}
.skip-link:focus { top: 12px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 5;
  background: rgba(22, 32, 46, .96);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-weight: 700; font-size: 19px; letter-spacing: -.01em; }
.brand img { width: 32px; height: 32px; }
.brand:hover { color: #fff; }
.nav { display: flex; align-items: center; gap: 26px; }
.nav a { color: var(--hero-muted); text-decoration: none; font-size: 15px; font-weight: 500; }
.nav a:hover { color: #fff; }
.nav .nav-cta { color: #fff; background: var(--accent); padding: 8px 16px; border-radius: 999px; }
.nav .nav-cta:hover { background: var(--accent-strong); }

/* Hero */
.hero { background: var(--hero); color: var(--hero-text); padding: 80px 0 96px; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: #7fe0d5; margin: 0 0 18px; }
.hero h1 { font-size: clamp(34px, 5vw, 54px); line-height: 1.08; letter-spacing: -.025em; margin: 0 0 22px; color: #fff; }
.hero h1 span { color: #7fe0d5; }
.hero p.lead { font-size: 19px; color: var(--hero-muted); margin: 0 0 32px; max-width: 34em; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 22px; border-radius: 999px; font-weight: 600; font-size: 16px;
  text-decoration: none; border: 1.5px solid transparent; cursor: pointer;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-strong); color: #fff; }
.btn-ghost { border-color: rgba(255, 255, 255, .28); color: #fff; }
.btn-ghost:hover { border-color: #fff; color: #fff; }
.btn-outline { border-color: var(--line); color: var(--ink); background: var(--paper); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent-strong); }

/* Chat mock in hero */
.chat {
  background: #1f2b3c; border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 20px; padding: 18px; box-shadow: 0 24px 60px rgba(0, 0, 0, .35);
}
.chat-top { display: flex; align-items: center; gap: 10px; padding: 2px 4px 14px; border-bottom: 1px solid rgba(255, 255, 255, .08); margin-bottom: 16px; }
.chat-top .dot { width: 10px; height: 10px; border-radius: 50%; background: #2ec5b6; box-shadow: 0 0 0 4px rgba(46, 197, 182, .18); }
.chat-top strong { font-size: 15px; color: #fff; }
.chat-top small { color: var(--hero-muted); font-size: 13px; margin-left: auto; }
.bubble { max-width: 88%; padding: 11px 15px; border-radius: 16px; font-size: 15px; line-height: 1.45; margin-bottom: 10px; }
.bubble.user { margin-left: auto; background: var(--accent); color: #fff; border-bottom-right-radius: 5px; }
.bubble.bot { background: #2a3850; color: var(--hero-text); border-bottom-left-radius: 5px; }
.chat-note { font-size: 12.5px; color: var(--hero-muted); text-align: center; margin: 14px 0 0; }

/* Sections */
section { scroll-margin-top: 72px; }
.section { padding: 88px 0; }
.section.alt { background: var(--paper-alt); }
.section-head { max-width: 46em; margin-bottom: 44px; }
.section-head h2 { font-size: clamp(28px, 3.4vw, 38px); letter-spacing: -.02em; line-height: 1.15; margin: 0 0 14px; }
.section-head p { color: var(--muted); margin: 0; font-size: 18px; }
.kicker { font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent-strong); margin: 0 0 10px; }

/* Product cards */
.products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; display: flex; flex-direction: column; box-shadow: var(--shadow);
}
.card.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), var(--shadow); }
.card-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--accent-tint); color: var(--accent-strong); display: grid; place-items: center; margin-bottom: 18px; }
.card-icon svg { width: 24px; height: 24px; }
.card .for { font-size: 13.5px; font-weight: 600; color: var(--muted); margin: 0 0 4px; }
.card h3 { font-size: 22px; letter-spacing: -.01em; margin: 0 0 12px; line-height: 1.2; }
.price { display: flex; align-items: baseline; gap: 6px; margin: 0 0 14px; }
.price strong { font-size: 26px; letter-spacing: -.02em; }
.price span { color: var(--muted); font-size: 14px; }
.price.request strong { font-size: 17px; color: var(--ink-soft); }
.card p.desc { color: var(--ink-soft); margin: 0 0 16px; font-size: 16px; }
.ticks { list-style: none; padding: 0; margin: 0 0 24px; display: grid; gap: 9px; }
.ticks li { position: relative; padding-left: 26px; font-size: 15.5px; color: var(--ink-soft); }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: 6px; width: 15px; height: 15px; border-radius: 50%;
  background: var(--accent-tint) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.3l2.2 2.2 4.8-5' fill='none' stroke='%230f7d72' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 13px no-repeat;
}
.card .btn { margin-top: auto; align-self: flex-start; }
.card .fineprint { font-size: 13px; color: var(--muted); margin: 12px 0 0; }

/* Capabilities */
.caps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 52px; }
.cap { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.cap h3 { font-size: 18px; margin: 14px 0 8px; }
.cap p { margin: 0; color: var(--ink-soft); font-size: 15.5px; }
.cap .card-icon { margin-bottom: 0; }

.work { display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: start; }
.work > div { position: sticky; top: 96px; }
.work h3 { font-size: 22px; margin: 0 0 10px; }
.work > div > p { color: var(--muted); margin: 0; }
.work-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.work-list li { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; }
.work-list strong { display: block; font-size: 16px; margin-bottom: 2px; }
.work-list span { color: var(--muted); font-size: 15px; }

/* Steps & principles */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; counter-reset: step; margin-bottom: 44px; }
.step { padding: 26px; border-radius: var(--radius); background: var(--paper-alt); }
.section.alt .step { background: var(--paper); border: 1px solid var(--line); }
.step::before {
  counter-increment: step; content: counter(step);
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  background: var(--ink); color: #fff; font-weight: 700; font-size: 15px; margin-bottom: 14px;
}
.step h3 { margin: 0 0 6px; font-size: 18px; }
.step p { margin: 0; color: var(--ink-soft); font-size: 15.5px; }

.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.principle h3 { font-size: 17px; margin: 0 0 6px; }
.principle p { margin: 0; color: var(--ink-soft); font-size: 15.5px; }

/* About + contact */
.about { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.about h2 { font-size: clamp(28px, 3.4vw, 38px); letter-spacing: -.02em; line-height: 1.15; margin: 0 0 14px; }
.about p { color: var(--ink-soft); margin: 0 0 14px; }
.facts { list-style: none; margin: 0; padding: 26px; display: grid; gap: 14px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); }
.facts li { display: flex; justify-content: space-between; gap: 18px; font-size: 15.5px; border-bottom: 1px dashed var(--line); padding-bottom: 12px; }
.facts li:last-child { border-bottom: 0; padding-bottom: 0; }
.facts span { color: var(--muted); }
.facts strong { text-align: right; font-weight: 600; }

.contact { background: var(--hero); color: var(--hero-text); border-radius: 22px; padding: 56px; display: grid; grid-template-columns: 1.2fr .8fr; gap: 32px; align-items: center; }
.contact h2 { color: #fff; font-size: clamp(28px, 3.4vw, 38px); margin: 0 0 12px; letter-spacing: -.02em; }
.contact p { color: var(--hero-muted); margin: 0; font-size: 18px; }
.contact .actions { justify-content: flex-end; }
.contact .email { color: #fff; font-weight: 600; font-size: 18px; word-break: break-all; }

/* Footer */
.site-footer { padding: 44px 0 56px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); }
.site-footer .wrap { display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px; }
.site-footer p { margin: 0 0 6px; }
.site-footer nav { display: flex; gap: 20px; justify-content: flex-end; flex-wrap: wrap; align-content: start; }
.site-footer a { color: var(--ink-soft); }

/* Legal pages */
.legal { max-width: 760px; margin: 0 auto; padding: 64px 20px 72px; }
.legal h1 { font-size: clamp(30px, 4vw, 42px); letter-spacing: -.02em; margin: 0 0 6px; }
.legal .updated { color: var(--muted); margin: 0 0 36px; }
.legal h2 { font-size: 21px; margin: 38px 0 10px; }
.legal p, .legal li { color: var(--ink-soft); }
.legal ul { padding-left: 22px; }
.legal .box { background: var(--paper-alt); border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; }

/* Responsive */
@media (max-width: 980px) {
  .hero .wrap, .work, .about, .contact { grid-template-columns: 1fr; }
  .work > div { position: static; }
  .products { grid-template-columns: 1fr; max-width: 640px; }
  .caps { grid-template-columns: repeat(2, 1fr); }
  .steps, .principles { grid-template-columns: 1fr; }
  .contact .actions { justify-content: flex-start; }
  .site-footer .wrap { grid-template-columns: 1fr; }
  .site-footer nav { justify-content: flex-start; }
}
@media (max-width: 720px) {
  .nav a:not(.nav-cta) { display: none; }
  .hero { padding: 56px 0 64px; }
  .section { padding: 64px 0; }
  .caps { grid-template-columns: 1fr; }
  .contact { padding: 36px 24px; }
  .wrap { padding: 0 16px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}