/* ============================================================
   Areti Health — shared "bold concept" design system
   Used by: index.html (landing), leads-flow.html, consent-flow.html
   One source of truth for brand tokens + shared chrome.
   ============================================================ */
:root {
  --purple: #7C29C4;
  --purple-2: #9446D6;
  --indigo: #2730B9;
  --amber: #FBB221;
  --teal: #3FD7B6;
  --dark: #142616;
  --ink: #0B1410;
  --gray-50: #fafafa;
  --gray-100: #f4f6f4;
  --gray-200: #e5e7eb;
  --gray-300: #cbd5e1;
  --gray-500: #6b7280;
  --gray-700: #374151;
  --gray-900: #111827;
  --white: #ffffff;
  --danger: #d1374e;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--dark);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}
.shell { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* Topbar — calm corporate, matches site header */
.topbar {
  background: rgba(255,255,255,.92);
  border-bottom: 1px solid rgba(0,0,0,.06);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.topbar .nav {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 14px 24px;
}
.logo {
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -0.012em;
  color: var(--dark);
  text-decoration: none;
}
.logo .dot { color: var(--amber); }
.nav-items {
  display: flex;
  gap: 22px;
  font-size: 14px;
  font-weight: 500;
}
.nav-items a {
  color: var(--gray-700);
  text-decoration: none;
}
.nav-items a:hover { color: var(--purple); }
.nav-cta { margin-left: auto; display: flex; gap: 12px; align-items: center; }
.nav-cta .login {
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-700);
  text-decoration: none;
}
.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  transition: transform .15s, background .15s;
  border: none;
  cursor: pointer;
  font-family: inherit;
}
.btn-primary { background: var(--purple); color: white; }
.btn-primary:hover { background: var(--indigo); transform: translateY(-1px); }
.btn-amber { background: var(--amber); color: var(--dark); }
.btn-dark { background: var(--dark); color: white; }
.btn-dark:hover { background: var(--purple); }
.btn-outline-light {
  border: 2px solid rgba(255,255,255,.3);
  background: transparent;
  color: white;
}
/* Visible keyboard focus for accessibility */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
}

/* Bold gradient hero */
.hero-bold {
  background: linear-gradient(135deg, var(--purple) 0%, var(--indigo) 100%);
  color: white;
  padding: 90px 0 110px;
  position: relative;
  overflow: hidden;
}
.hero-bold::before {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background:
    radial-gradient(circle at 80% 10%, rgba(255,255,255,.16), transparent 50%),
    radial-gradient(circle at 10% 90%, rgba(63,215,182,.10), transparent 50%);
  pointer-events: none;
}
.hero-bold .shell { position: relative; z-index: 1; }
.hero-bold .eyebrow {
  display: inline-block;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--amber);
  margin-bottom: 22px;
}
.hero-bold .eyebrow .dot { color: var(--teal); margin-right: 6px; }
.hero-bold h1 {
  font-size: 72px;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
  margin: 0 0 22px;
  max-width: 920px;
}
.hero-bold h1 em { font-style: normal; color: var(--amber); }
.hero-bold .lead {
  font-size: 22px;
  font-weight: 500;
  max-width: 720px;
  opacity: .92;
  line-height: 1.45;
  margin: 0;
}

/* Stats bar — dark */
.stats { background: var(--ink); color: white; padding: 64px 0; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.stat { text-align: center; }
.stat .n {
  font-size: 52px;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--amber);
  line-height: 1;
}
.stat .l {
  font-size: 13px;
  color: rgba(255,255,255,.7);
  margin-top: 10px;
  font-weight: 500;
}

/* Hint strip between sections */
.hint-strip {
  padding: 22px 0;
  background: var(--gray-50);
  border-top: 1px solid var(--gray-100);
  border-bottom: 1px solid var(--gray-100);
  text-align: center;
  font-size: 14px;
  color: var(--gray-500);
}
.hint-strip a {
  color: var(--purple);
  text-decoration: none;
  font-weight: 700;
  border-bottom: 2px solid var(--amber);
  padding-bottom: 2px;
}

/* Site footer */
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,.6);
  text-align: center;
  font-size: 13px;
  padding: 28px 0;
}
.site-footer a { color: rgba(255,255,255,.8); text-decoration: none; }

@media (max-width: 900px) {
  .hero-bold { padding: 60px 0 70px; }
  .hero-bold h1 { font-size: 44px; }
  .hero-bold .lead { font-size: 17px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .topbar .nav-items { display: none; }
}