:root {
  --ink: #0b1220;
  --ink-2: #1a2536;
  --paper: #ffffff;
  --paper-2: #f6f8fb;
  --paper-3: #eef2f7;
  --line: rgba(11, 18, 32, 0.10);
  --muted: rgba(11, 18, 32, 0.55);
  --soft: rgba(11, 18, 32, 0.78);
  --accent: #16a34a;
  --accent-ink: #0f7a37;
  --accent-2: #0ea5e9;
  --warn: #d97706;
  --max: 1120px;
  --max-narrow: 760px;
  --radius: 10px;
  --mono: 'JetBrains Mono', 'Fira Code', ui-monospace, Menlo, Consolas, monospace;
  --sans: 'Inter', 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
  line-height: 1.55;
}

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

code {
  font-family: var(--mono);
  font-size: 0.92em;
  background: var(--paper-3);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--ink-2);
}

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: var(--max-narrow); }

/* ============ NAV ============ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-row {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--ink); text-decoration: none;
}
.brand-word {
  font-family: var(--mono); font-weight: 700; letter-spacing: -0.5px;
  font-size: 20px;
}
.brand-l { color: var(--accent); }
.brand.small .brand-word { font-size: 14px; }
.nav-links {
  display: flex; align-items: center; gap: 22px;
  font-size: 14px; color: var(--soft);
}
.nav-links a { color: var(--soft); }
.nav-links a:hover { color: var(--ink); text-decoration: none; }
.nav-links .nav-cta {
  background: var(--ink); color: #fff;
  padding: 8px 14px; border-radius: 6px;
}
.nav-links .nav-cta:hover { background: var(--accent); text-decoration: none; }

/* ============ HERO ============ */
.hero {
  padding: 80px 0 64px;
  background:
    radial-gradient(circle at 88% 0%, rgba(22, 163, 74, 0.10) 0%, transparent 55%),
    radial-gradient(circle at 0% 100%, rgba(14, 165, 233, 0.08) 0%, transparent 50%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
  border-bottom: 1px solid var(--line);
}
.pill {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px; font-weight: 700; letter-spacing: 1.4px; text-transform: uppercase;
  color: var(--accent-ink);
  background: rgba(22, 163, 74, 0.10);
  padding: 6px 12px; border-radius: 999px;
  margin-bottom: 22px;
}
.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1.05;
  letter-spacing: -2px;
  font-weight: 800;
  max-width: 920px;
}
.hero h1 .accent { color: var(--accent); }
.lede {
  margin-top: 22px;
  font-size: clamp(17px, 2.2vw, 21px);
  color: var(--soft);
  max-width: 720px;
  line-height: 1.55;
}
.hero-cta {
  margin-top: 32px;
  display: flex; gap: 14px; flex-wrap: wrap;
}
.btn-primary, .btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 22px;
  border-radius: 8px;
  font-weight: 700; font-size: 15px;
  font-family: var(--sans);
  cursor: pointer; border: 1px solid transparent;
  transition: transform 0.05s ease;
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: var(--accent); text-decoration: none; }
.btn-primary:active { transform: translateY(1px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink); text-decoration: none; }

.hero-trust {
  margin-top: 42px;
  list-style: none; display: flex; flex-wrap: wrap; gap: 8px 14px;
  font-family: var(--mono); font-size: 12px; color: var(--muted);
}
.hero-trust li {
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--line);
  padding: 6px 10px; border-radius: 6px;
}

/* ============ SECTIONS ============ */
.section { padding: 80px 0; border-bottom: 1px solid var(--line); }
.section-alt { background: var(--paper-2); }
.section h2 {
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 18px;
  max-width: 720px;
}
.section p { font-size: 17px; color: var(--soft); max-width: 720px; }
.section p + p { margin-top: 14px; }
.section-lede { margin-bottom: 36px; }
.section-bridge {
  margin-top: 36px;
  font-size: 17px;
  color: var(--ink-2);
  font-weight: 500;
  border-left: 3px solid var(--accent);
  padding: 4px 0 4px 16px;
  max-width: 720px;
}
.section-bridge.centered {
  border-left: 0;
  padding: 0;
  text-align: center;
  margin-left: auto; margin-right: auto;
  color: var(--muted);
  font-style: italic;
  font-weight: 400;
}

/* problem callouts */
.callouts { margin-top: 36px; display: grid; gap: 14px; }
.callout {
  border: 1px solid var(--line); border-left: 4px solid var(--accent);
  background: var(--paper);
  padding: 18px 22px; border-radius: 8px;
  font-size: 16px; color: var(--ink); line-height: 1.5;
}
.callout-q {
  display: inline-block; margin-right: 10px;
  color: var(--accent-ink); font-weight: 700; font-family: var(--mono);
}

/* 8 questions grid */
.grid-8 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.qcard {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px;
}
.qnum {
  font-family: var(--mono); font-size: 12px; color: var(--accent-ink);
  font-weight: 700;
}
.qcard h3 {
  font-size: 17px; margin: 6px 0 8px; line-height: 1.3;
}
.qcard p { font-size: 14px; color: var(--soft); line-height: 1.5; max-width: none; }

/* how it works */
.how-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px; margin-bottom: 48px;
}
.how-col {
  border: 1px solid var(--line); border-radius: 10px;
  padding: 24px; background: var(--paper);
}
.how-col h3 { font-family: var(--mono); font-size: 14px; color: var(--accent-ink); margin-bottom: 10px; letter-spacing: 0.5px; }
.how-col p { font-size: 15px; color: var(--soft); max-width: none; }

.diff-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 22px; }
.diff h4 { font-size: 17px; margin-bottom: 8px; }
.diff p { font-size: 14px; color: var(--soft); max-width: none; }
.diff-block { margin-top: 56px; padding-top: 36px; border-top: 1px solid var(--line); }
.diff-head {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.2px;
  margin-bottom: 24px;
  color: var(--ink);
  max-width: 720px;
}

/* who */
.icp { margin: 22px 0; padding-left: 22px; color: var(--soft); }
.icp li { margin-bottom: 8px; font-size: 16px; }
.muted { color: var(--muted); font-size: 14px; }

/* faq */
.faq {
  border: 1px solid var(--line); border-radius: 8px;
  padding: 16px 18px; margin-bottom: 12px;
  background: var(--paper);
}
.faq summary {
  cursor: pointer; font-weight: 600; font-size: 16px;
  list-style: none; outline: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: '+'; display: inline-block;
  width: 18px; color: var(--accent-ink); font-family: var(--mono); font-weight: 700;
}
.faq[open] summary::before { content: '-'; }
.faq p { margin-top: 12px; font-size: 15px; color: var(--soft); max-width: none; }

/* ============ CTA SECTION ============ */
.section-cta {
  background:
    radial-gradient(circle at 100% 0%, rgba(22, 163, 74, 0.10) 0%, transparent 50%),
    linear-gradient(180deg, var(--paper-2) 0%, var(--paper) 100%);
}

/* ============ FORM ============ */
.form { margin-top: 32px; }
.form .row {
  display: grid; gap: 14px;
  grid-template-columns: 1fr 1fr; margin-bottom: 14px;
}
@media (max-width: 600px) { .form .row { grid-template-columns: 1fr; } }
.form label {
  display: block; font-size: 13px; color: var(--ink-2); font-weight: 600;
}
.form label.block { display: block; margin-bottom: 14px; }
.form label > span { display: block; margin-bottom: 6px; }
.form input[type=email],
.form input[type=text],
.form select,
.form textarea {
  width: 100%; font: inherit; font-size: 15px;
  padding: 11px 13px;
  background: var(--paper); color: var(--ink);
  border: 1px solid var(--line); border-radius: 8px;
  outline: none; transition: border-color 0.1s, box-shadow 0.1s;
}
.form input:focus, .form select:focus, .form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.15);
}
.form textarea { resize: vertical; font-family: var(--sans); }
.form button[type=submit] { margin-top: 8px; }

/* honeypot - hidden from humans */
.form .hp {
  position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden;
}

.form-note { margin-top: 14px; font-size: 13px; color: var(--muted); }
.form-status { margin-top: 14px; font-size: 14px; min-height: 20px; }
.form-status.ok { color: var(--accent-ink); }
.form-status.err { color: #b91c1c; }

/* ============ FOOTER ============ */
.footer { padding: 32px 0; }
.footer-row {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 13px;
}

/* ============ MOBILE ============ */
/* Tablet and below */
@media (max-width: 760px) {
  .container { padding: 0 16px; }

  /* Nav: collapse to brand + Product preview + CTA */
  .nav-row { height: 56px; }
  .nav-links { gap: 10px; font-size: 13px; }
  /* hide all anchors except the Product preview link and the CTA */
  .nav-links a { display: none; }
  .nav-links .nav-cta,
  .nav-links a[href="/mvp.html"],
  .nav-links a[href$="/mvp.html"] { display: inline-flex; }
  .nav-links .nav-cta { padding: 8px 12px; font-size: 13px; }
  .brand-word { font-size: 17px; }

  /* Hero */
  .hero { padding: 48px 0 40px; }
  .pill { margin-bottom: 16px; padding: 5px 10px; font-size: 11px; letter-spacing: 1px; }
  .hero h1 { letter-spacing: -1px; }
  .lede { margin-top: 16px; }
  .hero-cta { margin-top: 24px; gap: 10px; }
  .hero-trust { margin-top: 28px; gap: 6px 8px; }
  .hero-trust li { padding: 5px 9px; font-size: 11px; }

  /* Sections */
  .section { padding: 56px 0; }
  .section h2 { letter-spacing: -0.5px; }
  .section p, .section-bridge { font-size: 16px; }

  /* Cards */
  .grid-8 { grid-template-columns: 1fr; gap: 12px; }
  .qcard { padding: 16px; }
  .qcard h3 { font-size: 16px; }
  .how-grid { grid-template-columns: 1fr; gap: 14px; margin-bottom: 36px; }
  .how-col { padding: 18px; }
  .diff-row { grid-template-columns: 1fr; gap: 18px; }
  .callouts { gap: 12px; margin-top: 28px; }
  .callout { padding: 14px 16px; font-size: 15px; }

  /* Forms - 16px inputs prevent iOS Safari focus zoom */
  .form input[type=email],
  .form input[type=text],
  .form select,
  .form textarea { font-size: 16px; padding: 12px 13px; }
  .form button[type=submit] { width: 100%; justify-content: center; }

  /* FAQ */
  .faq summary { font-size: 15px; }

  /* Footer */
  .footer { padding: 24px 0; }
  .footer-row { flex-direction: column; gap: 10px; text-align: center; }
}

/* Phone */
@media (max-width: 480px) {
  .hero { padding: 36px 0 32px; }
  .section { padding: 44px 0; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn-primary,
  .hero-cta .btn-ghost { justify-content: center; width: 100%; }
  .btn-primary, .btn-ghost { padding: 13px 18px; font-size: 15px; }
  .pill { margin-bottom: 14px; }
}

/* Reduced-motion friendliness */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation-duration: 0.01ms !important; }
}