/* 3SistersAI — brand: reference/brand/brand-guide.md */
:root {
  --navy: #1f2147;
  --lime: #a2df50;
  --white: #ffffff;
  --muted: rgba(255, 255, 255, 0.75);
  --ink: #23253d;
  --ink-soft: #55586f;
  --bg: #ffffff;
  --bg-alt: #f4f5f9;
  --radius: 14px;
  --maxw: 1080px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Montserrat', 'Inter', 'Helvetica Neue', Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
}

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

/* Header */
header {
  background: var(--navy);
  position: sticky;
  top: 0;
  z-index: 50;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.nav-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.nav-brand img { height: 44px; width: auto; display: block; }
.nav-brand span {
  color: var(--lime);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a {
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
}
.nav-links a:hover { color: var(--lime); }
.nav-links a.btn { font-size: 14px; }

/* Buttons */
.btn {
  display: inline-block;
  background: var(--lime);
  color: var(--navy);
  font-weight: 700;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 999px;
  border: none;
  font-size: 16px;
  font-family: inherit;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(31, 33, 71, 0.25); }
.btn-ghost {
  background: transparent;
  color: var(--lime);
  border: 2px solid var(--lime);
}
.btn-ghost:hover { background: rgba(162, 223, 80, 0.1); }

/* Hero */
.hero {
  background: var(--navy);
  color: var(--white);
  padding: 88px 0 96px;
}
.hero .pre {
  color: var(--lime);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(38px, 6vw, 62px);
  font-weight: 900;
  line-height: 1.1;
  max-width: 15ch;
}
.hero .sub {
  color: var(--muted);
  font-size: 19px;
  max-width: 58ch;
  margin: 24px 0 36px;
}
.hero .cta-note { color: var(--muted); font-size: 14px; margin-top: 14px; font-style: italic; }

/* Sections */
section { padding: 76px 0; }
section.alt { background: var(--bg-alt); }
.label {
  color: #6a8f2f;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
h2 {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
  max-width: 26ch;
}
.section-intro { color: var(--ink-soft); max-width: 60ch; margin-top: 14px; }

/* Pain list */
.pain-list { list-style: none; margin: 34px 0 26px; display: grid; gap: 14px; }
.pain-list li {
  background: var(--white);
  border-left: 5px solid var(--lime);
  border-radius: 8px;
  padding: 18px 22px;
  font-weight: 600;
  color: var(--navy);
  box-shadow: 0 2px 8px rgba(31, 33, 71, 0.07);
}
.pain-close { font-size: 18px; color: var(--ink); max-width: 58ch; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 22px; margin-top: 38px; }
.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 30px 28px;
  box-shadow: 0 3px 14px rgba(31, 33, 71, 0.08);
  border-top: 4px solid var(--lime);
}
.card h3 { color: var(--navy); font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.card p { color: var(--ink-soft); font-size: 16px; }
.card .price { color: var(--navy); font-weight: 700; margin-top: 14px; font-size: 15px; }
.card .price s { color: var(--ink-soft); font-weight: 400; }

/* Steps */
.steps { counter-reset: step; display: grid; gap: 26px; margin-top: 38px; }
.step { display: flex; gap: 22px; align-items: flex-start; }
.step::before {
  counter-increment: step;
  content: counter(step);
  flex: 0 0 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--lime);
  font-weight: 900;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step h3 { color: var(--navy); font-size: 19px; font-weight: 700; }
.step p { color: var(--ink-soft); font-size: 16px; max-width: 62ch; }

/* Testimonial */
.quote-block {
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius);
  padding: 46px 44px;
  margin-top: 38px;
}
.quote-block blockquote {
  font-size: 20px;
  line-height: 1.55;
  font-weight: 600;
  max-width: 62ch;
}
.quote-block blockquote::before { content: "\201C"; color: var(--lime); font-size: 42px; line-height: 0; margin-right: 6px; }
.quote-block cite {
  display: block;
  margin-top: 22px;
  color: var(--lime);
  font-style: normal;
  font-weight: 600;
  font-size: 15px;
}
.quote-context { color: var(--muted); font-size: 15px; margin-top: 18px; max-width: 66ch; }

/* Guide promo */
.promo {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--white);
  border: 2px solid var(--lime);
  border-radius: var(--radius);
  padding: 34px 36px;
}
.promo p { font-size: 18px; font-weight: 600; color: var(--navy); max-width: 46ch; }

/* FAQ */
.faq { margin-top: 34px; display: grid; gap: 12px; }
.faq details {
  background: var(--white);
  border-radius: 10px;
  padding: 20px 24px;
  box-shadow: 0 2px 8px rgba(31, 33, 71, 0.07);
}
.faq summary { font-weight: 700; color: var(--navy); cursor: pointer; font-size: 17px; }
.faq details p { margin-top: 12px; color: var(--ink-soft); }

/* Final CTA band */
.cta-band { background: var(--navy); color: var(--white); text-align: center; padding: 80px 0; }
.cta-band h2 { color: var(--white); margin: 0 auto 28px; }
.cta-band .cta-note { color: var(--muted); font-size: 14px; margin-top: 14px; font-style: italic; }

/* Forms */
.form-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px 38px;
  box-shadow: 0 4px 20px rgba(31, 33, 71, 0.1);
  max-width: 480px;
}
.form-card label { display: block; font-weight: 600; color: var(--navy); font-size: 15px; margin: 18px 0 6px; }
.form-card input {
  width: 100%;
  padding: 13px 16px;
  border: 2px solid #d8dae6;
  border-radius: 8px;
  font-size: 16px;
  font-family: inherit;
}
.form-card input:focus { outline: none; border-color: var(--lime); }
.form-card .btn { width: 100%; margin-top: 26px; }
.form-msg { margin-top: 16px; font-size: 15px; font-weight: 600; }
.form-msg.err { color: #b3261e; }
.hp { position: absolute; left: -9999px; opacity: 0; }

/* Footer */
footer { background: var(--navy); color: var(--muted); padding: 44px 0; font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px; align-items: center; }
footer a { color: var(--lime); text-decoration: none; font-weight: 600; }
footer nav { display: flex; gap: 20px; }

/* Page hero (inner pages) */
.page-hero { background: var(--navy); color: var(--white); padding: 64px 0; }
.page-hero h1 { font-size: clamp(30px, 5vw, 46px); font-weight: 900; line-height: 1.15; max-width: 20ch; }
.page-hero .sub { color: var(--muted); font-size: 18px; max-width: 58ch; margin-top: 18px; }

/* Legal / prose pages */
.legal { max-width: 70ch; }
.legal > p:first-child { color: var(--ink-soft); font-size: 15px; margin-bottom: 40px; }
.legal h2 { font-size: 21px; margin-top: 38px; margin-bottom: 10px; }
.legal h2:first-of-type { margin-top: 0; }
.legal p { color: var(--ink-soft); margin-top: 4px; }

.empty-state {
  background: var(--bg-alt);
  border: 2px dashed #c9ccdd;
  border-radius: var(--radius);
  padding: 34px;
  text-align: center;
  color: var(--ink-soft);
  font-size: 17px;
  margin-top: 30px;
}

@media (max-width: 720px) {
  .nav-links a:not(.btn) { display: none; }
  .hero { padding: 60px 0 68px; }
  section { padding: 56px 0; }
  .quote-block { padding: 32px 26px; }
}