/* Smart Vital Health — site stylesheet */

:root {
  --bg: #ffffff;
  --bg-alt: #f5f9f8;
  --text: #202b28;
  --text-soft: #55645f;
  --green: #2f7d68;
  --green-dark: #235e4e;
  --blue: #3a6ea5;
  --border: #e3e9e6;
  --radius: 10px;
  --max-width: 1120px;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-head: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--green-dark); }
a:hover, a:focus { color: var(--blue); }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--green-dark);
  color: #fff;
  padding: 10px 16px;
  border-radius: 6px;
  z-index: 100;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 24px;
  padding-top: 18px;
  padding-bottom: 18px;
}
.brand {
  font-family: var(--font-head);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.2px;
}
.brand:hover, .brand:focus { color: var(--text); }
.brand .mark { color: var(--green); }

.site-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
  margin: 0;
  padding: 0;
}
.site-nav a {
  text-decoration: none;
  color: var(--text-soft);
  font-size: 0.95rem;
  padding: 6px 1px;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover, .site-nav a:focus {
  color: var(--green-dark);
  border-bottom-color: var(--green);
}

/* Hero */
.hero {
  background: linear-gradient(180deg, var(--bg-alt), var(--bg));
  padding: 64px 0 48px;
  text-align: center;
}
.hero h1 {
  font-family: var(--font-head);
  font-size: clamp(2rem, 5vw, 2.75rem);
  margin: 0 0 16px;
  color: var(--text);
}
.hero .lede {
  font-size: 1.15rem;
  color: var(--text-soft);
  max-width: 640px;
  margin: 0 auto;
}
.hero .intro {
  max-width: 680px;
  margin: 20px auto 0;
  color: var(--text-soft);
  font-size: 0.98rem;
}

/* Category cards */
.categories { padding: 48px 0 64px; }
.categories h2 {
  font-family: var(--font-head);
  font-size: 1.6rem;
  text-align: center;
  margin: 0 0 8px;
}
.categories .section-lede {
  text-align: center;
  color: var(--text-soft);
  max-width: 560px;
  margin: 0 auto 32px;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-decoration: none;
  color: inherit;
  transition: box-shadow .15s ease, transform .15s ease, border-color .15s ease;
}
.card:hover, .card:focus-visible {
  box-shadow: 0 10px 26px rgba(32, 43, 40, 0.09);
  transform: translateY(-2px);
  border-color: var(--green);
}
.card .icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.card .icon img { width: 28px; height: 28px; }
.card h3 {
  margin: 0 0 8px;
  font-size: 1.15rem;
  font-family: var(--font-head);
}
.card p {
  margin: 0 0 16px;
  color: var(--text-soft);
  font-size: 0.95rem;
  flex-grow: 1;
}
.card .cta {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--green-dark);
}
.card:hover .cta, .card:focus-visible .cta { color: var(--blue); }

/* Anchored info sections */
.info-section {
  padding: 48px 0;
  border-top: 1px solid var(--border);
  scroll-margin-top: 76px;
}
.info-section.alt { background: var(--bg-alt); }
.info-section .container { max-width: 760px; }
.info-section h2 {
  font-family: var(--font-head);
  font-size: 1.5rem;
  margin-top: 0;
}
.info-section p { color: var(--text-soft); }

/* Simple page header (contact / disclaimer) */
.page-header {
  padding: 56px 0 24px;
  text-align: center;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}
.page-header h1 {
  font-family: var(--font-head);
  font-size: 2rem;
  margin: 0 0 12px;
}
.page-header p {
  color: var(--text-soft);
  max-width: 600px;
  margin: 0 auto;
}

.page-content { padding: 40px 0 64px; }
.page-content .container { max-width: 720px; }
.page-content h2 {
  font-family: var(--font-head);
  font-size: 1.2rem;
  margin-top: 34px;
  margin-bottom: 8px;
}
.page-content p, .page-content li { color: var(--text-soft); }
.page-content ul { padding-left: 22px; }

.contact-box {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
}
.contact-box p { margin-top: 0; }
.contact-box a.email {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--green-dark);
  text-decoration: none;
  word-break: break-word;
}
.contact-box a.email:hover, .contact-box a.email:focus {
  color: var(--blue);
  text-decoration: underline;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  padding: 32px 0 24px;
  margin-top: 24px;
}
.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  justify-content: space-between;
  align-items: center;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  margin: 0;
  padding: 0;
}
.footer-links a {
  color: var(--text-soft);
  text-decoration: none;
  font-size: 0.9rem;
}
.footer-links a:hover, .footer-links a:focus {
  color: var(--green-dark);
  text-decoration: underline;
}
.copyright { font-size: 0.85rem; color: var(--text-soft); }
.footer-note {
  color: var(--text-soft);
  font-size: 0.82rem;
  max-width: var(--max-width);
  margin: 18px auto 0;
  padding: 0 24px;
  line-height: 1.6;
}

@media (max-width: 640px) {
  .site-header .container { flex-direction: column; align-items: flex-start; }
  .hero { padding: 48px 0 36px; }
  .categories, .info-section, .page-content { padding-top: 36px; padding-bottom: 36px; }
  .page-header { padding: 44px 0 20px; }
}