:root {
  --bg: #0b0c0e;
  --surface: #141518;
  --surface-2: #1a1c20;
  --border: #26282e;
  --text: #f1f2f4;
  --muted: #9aa1ab;
  --accent: #3b9bf5;
  --accent-strong: #208aef;
  --radius: 14px;
  --wrap: 940px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 22px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.25; letter-spacing: -0.02em; }

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 12px; top: 12px;
  z-index: 10;
  background: var(--accent-strong);
  color: #fff;
  padding: 10px 14px;
  border-radius: 8px;
}

/* ---------- header ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(11, 12, 14, 0.86);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 60px;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 650;
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; }

.mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: #fff;
  overflow: hidden;
  flex: none;
}
.mark img { width: 100%; height: 100%; object-fit: contain; display: block; }

.mark-lg {
  width: 86px;
  height: 86px;
  border-radius: 20px;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.55);
  margin-bottom: 26px;
}

.topbar nav {
  display: flex;
  gap: 22px;
  font-size: 15px;
  flex-wrap: wrap;
}
.topbar nav a { color: var(--muted); }
.topbar nav a:hover { color: var(--text); text-decoration: none; }

/* ---------- hero ---------- */

.hero {
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(760px 340px at 50% -70px, rgba(32, 138, 239, 0.16), transparent 70%),
    var(--bg);
}

.hero-inner {
  padding: 66px 22px 60px;
  text-align: center;
}

.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 5.4vw, 2.9rem);
  font-weight: 700;
}

.lead {
  max-width: 660px;
  margin: 0 auto 30px;
  color: var(--muted);
  font-size: 1.06rem;
}

.cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
}
.btn:hover { border-color: #3a3d45; text-decoration: none; }

.btn-primary {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: #fff;
}
.btn-primary:hover { background: #1a7ad6; border-color: #1a7ad6; }

.micro {
  color: #7d838d;
  font-size: 13.5px;
  margin-top: 18px;
}

/* ---------- sections ---------- */

.block { padding: 62px 22px; }

.block > h2 {
  margin: 0 0 14px;
  font-size: clamp(1.45rem, 3.4vw, 1.8rem);
}

.section-lede {
  color: var(--muted);
  max-width: 620px;
  margin-bottom: 34px;
}

.band {
  background: #0e0f12;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* ---------- feature grid ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.02rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

/* ---------- steps ---------- */

.steps {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.steps li {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

.step-n {
  flex: none;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(32, 138, 239, 0.14);
  border: 1px solid rgba(32, 138, 239, 0.4);
  color: var(--accent);
  font-size: 15px;
  font-weight: 700;
}

.steps h3 { margin: 4px 0 6px; font-size: 1.02rem; }
.steps p { margin: 0; color: var(--muted); font-size: 15px; }

/* ---------- faq ---------- */

.faq-group {
  margin: 38px 0 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: #7d838d;
}
.faq-group:first-of-type { margin-top: 30px; }

details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
}

summary {
  padding: 17px 48px 17px 20px;
  cursor: pointer;
  font-weight: 600;
  font-size: 15.5px;
  list-style: none;
  position: relative;
}
summary::-webkit-details-marker { display: none; }

summary::after {
  content: "";
  position: absolute;
  right: 22px;
  top: 25px;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 0.15s ease;
}
details[open] summary::after { transform: rotate(-135deg); }

summary:hover { background: var(--surface-2); }

details > :not(summary) {
  padding: 0 22px;
  color: var(--muted);
  font-size: 15px;
}
details > :not(summary):last-child { padding-bottom: 20px; }

details ul { margin: 0 0 1em; padding-left: 20px; }
details li { margin-bottom: 6px; }

details strong { color: var(--text); font-weight: 600; }

/* ---------- contact ---------- */

.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  margin-top: 26px;
}

.contact-lead { color: var(--muted); max-width: 620px; }

.email-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 22px 0 0;
}
.email-row .btn { font-size: 16px; }

button.btn {
  font-family: inherit;
  line-height: 1.5;
  cursor: pointer;
}

.contact-card h3 { margin: 34px 0 10px; font-size: 1.02rem; }
.contact-card ul { margin: 0 0 1em; padding-left: 20px; color: var(--muted); font-size: 15px; }
.contact-card li { margin-bottom: 6px; }
.contact-card > p:not(.contact-lede):not(.micro) { color: var(--muted); font-size: 15px; }

/* ---------- prose (privacy page) ---------- */

.prose { padding: 52px 22px 70px; max-width: 720px; }
.prose h1 { margin: 0 0 8px; font-size: clamp(1.7rem, 4.4vw, 2.2rem); }
.prose .updated { color: #7d838d; font-size: 14px; margin-bottom: 34px; }
.prose h2 { margin: 38px 0 12px; font-size: 1.16rem; }
.prose p, .prose li { color: var(--muted); font-size: 15.5px; }
.prose ul { padding-left: 20px; }
.prose li { margin-bottom: 8px; }
.prose strong { color: var(--text); font-weight: 600; }
.prose .callout {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-strong);
  border-radius: 10px;
  padding: 18px 20px;
  margin: 26px 0;
}
.prose .callout p { color: var(--text); font-size: 15.5px; }

/* ---------- footer ---------- */

.footer {
  border-top: 1px solid var(--border);
  padding: 34px 0 46px;
}
.foot-inner p { margin: 0 0 8px; color: var(--muted); font-size: 14.5px; }
.foot-inner .micro { margin-top: 0; }

@media (max-width: 560px) {
  body { font-size: 16px; }
  .hero-inner { padding: 48px 22px 44px; }
  .block { padding: 48px 22px; }
  .contact-card { padding: 22px; }
  .bar { min-height: 56px; padding-top: 8px; padding-bottom: 8px; }
}