:root {
  --bg: #ffffff;
  --bg-alt: #f5f7fa;
  --fg: #0d1526;
  --muted: #5a6577;
  --rule: #e2e6ec;
  --accent: #1f4fd6;
  --accent-dark: #173ca6;
  --accent-soft: #eaf0fd;
  --navy: #0d1526;
  --ok: #157f4a;
  --no: #b4322b;
  --radius: 10px;
  color-scheme: light;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 72px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-underline-offset: 3px; }

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.015em; margin: 0; }
h2 { font-size: clamp(26px, 3.5vw, 34px); margin-bottom: 32px; }
h3 { font-size: 17px; margin-bottom: 8px; }
p { margin: 0 0 12px; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* Buttons */
.btn {
  display: inline-block;
  font: inherit;
  font-weight: 600;
  font-size: 15px;
  color: #fff;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 11px 20px;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s;
}
.btn:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.btn:disabled { opacity: 0.6; cursor: default; }
.btn-small { padding: 7px 14px; font-size: 14px; }
.btn-ghost { color: var(--fg); background: #fff; border-color: var(--rule); }
.btn-ghost:hover { background: var(--bg-alt); border-color: var(--rule); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--rule);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  font-weight: 700;
  font-size: 18px;
  text-decoration: none;
  letter-spacing: -0.01em;
}
.nav { display: flex; align-items: center; gap: 28px; }
.nav a:not(.btn) { color: var(--muted); text-decoration: none; font-size: 15px; font-weight: 500; }
.nav a:not(.btn):hover { color: var(--fg); }

/* Hero */
.hero {
  border-bottom: 1px solid var(--rule);
  background:
    linear-gradient(180deg, rgba(245,247,250,0) 55%, var(--bg-alt) 100%),
    linear-gradient(var(--rule) 1px, transparent 1px) 0 0 / 40px 40px,
    linear-gradient(90deg, var(--rule) 1px, transparent 1px) 0 0 / 40px 40px,
    var(--bg-alt);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 56px;
  align-items: center;
  padding-top: 96px;
  padding-bottom: 96px;
}
.eyebrow {
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.hero h1 { font-size: clamp(34px, 5vw, 52px); letter-spacing: -0.025em; margin-bottom: 20px; }
.lede { font-size: 18px; color: var(--muted); max-width: 34em; margin-bottom: 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* Hero sample card */
.sample {
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 14px;
  box-shadow: 0 1px 2px rgba(13, 21, 38, 0.04), 0 12px 32px rgba(13, 21, 38, 0.08);
  font-size: 14px;
  overflow: hidden;
}
.sample-head, .sample-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
}
.sample-head { border-bottom: 1px solid var(--rule); }
.sample-foot { border-top: 1px solid var(--rule); background: var(--bg-alt); color: var(--muted); font-size: 13px; flex-wrap: wrap; }
.sample-id { color: var(--muted); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.tag { background: var(--accent-soft); color: var(--accent-dark); font-weight: 600; font-size: 12px; padding: 3px 10px; border-radius: 999px; }
.sample-body { padding: 18px 20px 14px; }
.sample-label { font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin: 0 0 10px; }
.sample-label:not(:first-child) { margin-top: 18px; }
.bar { height: 9px; border-radius: 5px; background: var(--rule); margin-bottom: 8px; }
.w90 { width: 90%; } .w75 { width: 75%; } .w60 { width: 60%; }
.checks { list-style: none; margin: 0; padding: 0; }
.checks li { position: relative; padding-left: 26px; margin-bottom: 7px; }
.checks li::before {
  position: absolute;
  left: 0;
  top: 2px;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  line-height: 17px;
  text-align: center;
  color: #fff;
}
.checks .ok::before { content: "✓"; background: var(--ok); }
.checks .no::before { content: "✕"; background: var(--no); }
.status-pill { background: #e7f5ee; color: var(--ok); font-weight: 600; padding: 2px 10px; border-radius: 999px; }

/* Sections */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }

.grid { display: grid; gap: 20px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 24px;
}
.card p { color: var(--muted); font-size: 15px; margin: 0; }

.domains { margin-top: 48px; }
.domains h3 { font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.chips { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; }
.chips li { border: 1px solid var(--rule); border-radius: 999px; padding: 6px 14px; font-size: 14px; font-weight: 500; background: #fff; }

/* Steps */
.steps {
  list-style: none;
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 0 0 56px;
  padding: 0;
}
.steps li { counter-increment: step; border-top: 2px solid var(--accent); padding-top: 18px; }
.steps li::before {
  content: "0" counter(step);
  display: block;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
}
.steps p { color: var(--muted); font-size: 15px; margin: 0; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.split p { color: var(--muted); }
.ticks { list-style: none; margin: 0; padding: 0; }
.ticks li {
  position: relative;
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 14px 16px 14px 46px;
  margin-bottom: 10px;
  font-weight: 500;
}
.ticks li::before {
  content: "✓";
  position: absolute;
  left: 16px;
  top: 14px;
  color: var(--accent);
  font-weight: 700;
}

/* Contact */
.contact h2 { margin-bottom: 16px; }
.company {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 20px;
  margin: 28px 0 0;
  font-size: 15px;
}
.company dt { color: var(--muted); }
.company dd { margin: 0; font-weight: 500; }

.form {
  display: grid;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: 28px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; }
.form .opt { font-weight: normal; color: var(--muted); }
.form input, .form textarea {
  font: inherit;
  font-weight: normal;
  color: var(--fg);
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 10px 12px;
  width: 100%;
}
.form input:focus, .form textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
.form textarea { resize: vertical; }
.form .btn { justify-self: start; }
.form .note { font-size: 13px; color: var(--muted); margin: 0; }
.form .status { font-size: 14px; margin: 0; min-height: 1.4em; }
.hp { position: absolute; left: -9999px; }

/* Footer */
.site-footer { background: var(--navy); color: #a7b0c0; font-size: 14px; }
.site-footer p { color: #a7b0c0; }
.site-footer a { color: #d6dce6; text-decoration: none; }
.site-footer a:hover { color: #fff; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-top: 56px; padding-bottom: 40px; }
.site-footer .brand-light { color: #fff; margin-bottom: 12px; }
.site-footer .footer-head { color: #fff; font-weight: 600; margin-bottom: 10px; }
.footer-base { border-top: 1px solid rgba(255, 255, 255, 0.1); padding-top: 20px; padding-bottom: 28px; font-size: 13px; }

/* Legal pages */
.prose { max-width: 760px; padding-top: 64px; padding-bottom: 80px; }
.prose h1 { font-size: clamp(30px, 4vw, 40px); margin-bottom: 8px; }
.prose h2 { font-size: 20px; margin: 36px 0 10px; }
.prose p, .prose li { color: #2b3445; }
.prose ul { padding-left: 22px; margin: 0 0 16px; }
.prose li { margin-bottom: 6px; }
.prose .muted { color: var(--muted); }

/* Responsive */
@media (max-width: 960px) {
  .hero-inner, .split { grid-template-columns: 1fr; gap: 40px; }
  .grid-4, .steps { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-inner > div:first-child { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .nav a:not(.btn) { display: none; }
  .hero-inner { padding-top: 56px; padding-bottom: 56px; }
  .section { padding: 64px 0; }
  .grid-4, .grid-3, .steps, .form-row, .footer-inner { grid-template-columns: 1fr; }
  .form { padding: 20px; }
}