/* Chiari Companion — shared web styles
   Mirrors the iOS Theme: mist background, teal primary, calm typography. */

:root {
  --bg: #F4F7FB;
  --surface: #FFFFFF;
  --primary: #245D83;
  --primary-tint: #DDEEF8;
  --primary-tint-light: #EEF7FC;
  --secondary: #6E669A;
  --text-primary: #172331;
  --text-secondary: #435366;
  --text-tertiary: #718094;
  --divider: #D9E2EB;
  --success: #16A34A;
  --warning: #D97706;
  --error: #BA1A1A;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-card: 0 8px 32px rgba(23, 35, 49, 0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0B1118;
    --surface: #151D27;
    --primary: #8CCFEB;
    --primary-tint: #17384A;
    --primary-tint-light: #102B3C;
    --secondary: #C5BDF0;
    --text-primary: #F1F5F8;
    --text-secondary: #C5D0DA;
    --text-tertiary: #8E9BAB;
    --divider: #293647;
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5);
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  color: var(--text-primary);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

.container--narrow { max-width: 720px; }

/* Header */
header {
  padding: 28px 0;
  border-bottom: 1px solid var(--divider);
  background: var(--bg);
}

header nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--primary);
  color: #fff;
  border-radius: 8px;
  margin-right: 10px;
  font-weight: 800;
  font-size: 16px;
  vertical-align: middle;
}

@media (prefers-color-scheme: dark) {
  .brand-mark { color: #0B1118; }
}

nav .links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

nav .links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  transition: color 0.15s;
}

nav .links a:hover { color: var(--primary); }

/* Hero */
.hero {
  padding: 80px 0 64px;
  text-align: left;
}

.eyebrow {
  display: inline-block;
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.12em;
  margin-bottom: 16px;
}

h1 {
  font-size: clamp(36px, 6vw, 56px);
  line-height: 1.05;
  margin: 0 0 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  max-width: 18ch;
}

.hero p.lead {
  font-size: clamp(17px, 2vw, 20px);
  color: var(--text-secondary);
  max-width: 60ch;
  margin: 0 0 32px;
}

h2 {
  font-size: 26px;
  margin: 48px 0 12px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

h3 {
  font-size: 18px;
  margin: 28px 0 8px;
  font-weight: 600;
  color: var(--text-primary);
}

p {
  font-size: 16px;
  color: var(--text-secondary);
  margin: 0 0 16px;
}

a { color: var(--primary); }

ul {
  padding-left: 22px;
  color: var(--text-secondary);
}

ul li { margin-bottom: 8px; font-size: 16px; }

code {
  background: var(--primary-tint-light);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 14px;
  color: var(--primary);
}

.cta {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  border-radius: 14px;
  padding: 14px 22px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 4px 16px rgba(36, 93, 131, 0.25);
}

@media (prefers-color-scheme: dark) {
  .cta { color: #0B1118; }
}

.cta:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(36, 93, 131, 0.32); }

.cta--ghost {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
  box-shadow: none;
  margin-left: 8px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 32px 0 16px;
}

.feature {
  background: var(--surface);
  border: 1px solid var(--divider);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.feature h3 { margin-top: 0; }
.feature p { font-size: 15px; margin-bottom: 0; }

.callout {
  background: var(--primary-tint-light);
  border-left: 0;
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin: 24px 0;
  color: var(--text-primary);
}

.callout p { color: var(--text-primary); margin: 0; }
.callout strong { color: var(--primary); }

.disclaimer {
  background: var(--surface);
  border: 1px solid var(--divider);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin: 32px 0;
  font-size: 14px;
}

.disclaimer p { font-size: 14px; margin-bottom: 0; }

main {
  padding: 32px 0 64px;
  min-height: calc(100vh - 240px);
}

.legal main { padding: 16px 0 64px; }

.legal h1 {
  font-size: clamp(32px, 5vw, 44px);
  max-width: none;
  margin-bottom: 8px;
}

.legal .updated {
  color: var(--text-tertiary);
  font-size: 14px;
  margin-bottom: 32px;
}

.legal h2 {
  margin-top: 40px;
  font-size: 22px;
}

.legal h3 { font-size: 17px; margin-top: 24px; }

.legal p, .legal ul li { font-size: 15px; line-height: 1.65; }

/* Footer */
footer {
  border-top: 1px solid var(--divider);
  padding: 32px 0 48px;
  margin-top: 64px;
  font-size: 14px;
  color: var(--text-tertiary);
}

footer .footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

footer a {
  color: var(--text-secondary);
  text-decoration: none;
  margin-right: 16px;
}

footer a:hover { color: var(--primary); }

/* Contact form */
.contact-card {
  background: var(--surface);
  border: 1px solid var(--divider);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin: 24px 0;
}

.email-link {
  display: inline-block;
  background: var(--primary-tint);
  color: var(--primary);
  padding: 12px 18px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
}

.email-link:hover { background: var(--primary); color: #fff; }
@media (prefers-color-scheme: dark) {
  .email-link:hover { color: #0B1118; }
}

@media (max-width: 600px) {
  .hero { padding: 48px 0 40px; }
  h1 { font-size: 36px; }
  .container { padding: 0 20px; }
  nav .links { gap: 14px; }
  nav .links a { font-size: 14px; }
}