:root {
  --bg: #0f1419;
  --bg-elevated: #1a222c;
  --bg-soft: #151b24;
  --ink: #e8eef4;
  --ink-muted: #9aa8b6;
  --ink-soft: #6b7a8a;
  --line: #2a3542;
  --line-strong: #3d4d5e;
  --accent: #5b9fd4;
  --accent-hover: #7ab3e0;
  --accent-ink: #0a1218;
  --accent-soft: #1a2a3a;
  --warn-bg: #1e2834;
  --warn-border: #5b9fd4;
  --warn-ink: #d4e4f4;
  --ok-bg: #16261e;
  --ok-border: #4a8a62;
  --ok-ink: #c8e6d4;
  --radius: 8px;
  --radius-sm: 5px;
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 8px 24px rgba(0, 0, 0, 0.35);
  --max: 680px;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --focus: 0 0 0 3px rgba(91, 159, 212, 0.45);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--accent-hover); }
:focus-visible { outline: none; box-shadow: var(--focus); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0.75rem 1rem;
  z-index: 100;
  font-weight: 600;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.wrap {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(15, 20, 25, 0.92);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 40;
}
.header-inner {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.9rem 0;
  flex-wrap: wrap;
}
.mark {
  font-weight: 650;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  color: var(--ink);
}
.mark-sub {
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.hero { padding: 2.75rem 0 1.5rem; }
.eyebrow {
  margin: 0 0 0.85rem;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 600;
  font-family: var(--mono);
}
.hero h1 {
  font-weight: 650;
  font-size: clamp(1.7rem, 4vw, 2.2rem);
  line-height: 1.22;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
  color: var(--ink);
}
.subhead {
  margin: 0 0 1.5rem;
  color: var(--ink-muted);
  font-size: 1.02rem;
}

.anti {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-left-width: 4px;
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  color: var(--warn-ink);
  margin-bottom: 1.5rem;
}
.anti strong {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
  color: var(--accent);
}
.anti p { margin: 0; font-size: 0.96rem; color: var(--ink-muted); }
.anti em { color: var(--ink); font-style: normal; font-weight: 600; }

.sample {
  margin: 0 0 0.5rem;
  padding: 0;
}
.sample-cap {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-family: var(--mono);
  margin-bottom: 0.5rem;
}
.sample-card {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  display: grid;
  gap: 0.55rem;
  box-shadow: var(--shadow);
  font-size: 0.9rem;
}
.sample-row {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 0.5rem;
  align-items: baseline;
}
.sample-label {
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.sample-value { color: var(--ink); }
.mono { font-family: var(--mono); font-size: 0.88em; color: var(--ink-muted); }

.pain, .product, .cta { padding: 1.75rem 0; }
.pain h2, .product h2, .cta h2 {
  font-size: 1.15rem;
  font-weight: 650;
  margin: 0 0 1rem;
  letter-spacing: -0.01em;
}

.pain-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}
.pain-list li {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow);
  color: var(--ink-muted);
}
.pain-list strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--ink);
}
.pain-list em { color: var(--ink); font-style: normal; font-weight: 600; }

.one-liner {
  margin: 0;
  padding: 1.1rem 1.2rem;
  background: var(--accent-soft);
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  color: var(--ink);
}

.cta {
  border-top: 1px solid var(--line);
  margin-top: 0.5rem;
  padding-top: 2.25rem;
  padding-bottom: 2.5rem;
}
.cta-lead { color: var(--ink-muted); margin: 0 0 1.4rem; }

.form {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem 1.35rem 1.5rem;
  box-shadow: var(--shadow);
  display: grid;
  gap: 1rem;
}
.field label {
  display: block;
  font-size: 0.86rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--ink);
}
.req {
  font-weight: 500;
  color: #e08a7a;
  font-size: 0.76rem;
  margin-left: 0.25rem;
}
.opt {
  font-weight: 500;
  color: var(--ink-soft);
  font-size: 0.76rem;
  margin-left: 0.25rem;
}
select, input[type="email"] {
  width: 100%;
  font: inherit;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  color: var(--ink);
}
select:focus, input[type="email"]:focus {
  border-color: var(--accent);
}
select option { background: var(--bg-elevated); color: var(--ink); }

.check-label {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  line-height: 1.45;
  color: var(--ink);
}
.check-label input {
  margin-top: 0.2rem;
  width: 1.1rem;
  height: 1.1rem;
  flex-shrink: 0;
  accent-color: var(--accent);
}

.form-error {
  margin: 0;
  padding: 0.65rem 0.75rem;
  background: #2a1818;
  border: 1px solid #a06060;
  border-radius: var(--radius-sm);
  color: #f0c8c8;
  font-size: 0.9rem;
}

.btn-primary {
  appearance: none;
  border: none;
  cursor: pointer;
  font: inherit;
  font-weight: 650;
  font-size: 1rem;
  padding: 0.8rem 1.1rem;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--accent-ink);
  width: 100%;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled {
  opacity: 0.65;
  cursor: wait;
}

.success {
  margin-top: 1rem;
  padding: 1.2rem 1.25rem;
  background: var(--ok-bg);
  border: 1px solid var(--ok-border);
  border-radius: var(--radius);
  color: var(--ok-ink);
}
.success h3 { margin: 0 0 0.4rem; font-size: 1.1rem; color: var(--ok-ink); }
.success p { margin: 0; }

.secondary {
  margin: 1.25rem 0 0;
  font-size: 0.95rem;
  color: var(--ink-muted);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.75rem 0 2.5rem;
  background: var(--bg-soft);
}
.trust {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: 0.4rem;
  font-size: 0.9rem;
  color: var(--ink-muted);
}
.trust li::before {
  content: "·";
  margin-right: 0.45rem;
  color: var(--accent);
  font-weight: 700;
}
.fine {
  margin: 0;
  font-size: 0.78rem;
  color: var(--ink-soft);
  font-family: var(--mono);
}

@media (max-width: 480px) {
  .wrap { width: min(100% - 1.5rem, var(--max)); }
  .hero { padding-top: 2rem; }
  .sample-row { grid-template-columns: 1fr; gap: 0.15rem; }
}