/* Page Animal Health — shared design system.
   Tokens and page shell used by every page. Home-page-specific sections
   (hero, facts, services, about, contact) live inline in index.html. */

*, *::before, *::after { box-sizing: border-box; }

:root {
  --ink: #17324A;
  --body: #42586C;
  --muted: #5F7387;
  --accent: #2577B0;
  --paper: #F8F5EF;
  --paper-alt: #F2EEE5;
  --desk: #ECE7DE;
  --rule: #DFD8CA;
  --rule-soft: #E5DFD2;
}

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--desk);
  color: var(--ink);
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  padding: clamp(0px, 2.5vw, 40px);
}

::selection { background: #CFE3F2; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
h1, h2 { font-family: 'Source Serif 4', Georgia, serif; font-weight: 400; }
img { display: block; max-width: 100%; }

/* ---------- Sheet ---------- */

.sheet {
  max-width: 1140px;
  margin: 0 auto;
  background: var(--paper);
  border-radius: 6px;
  box-shadow: 0 26px 64px -42px rgba(23,50,74,0.55), 0 2px 6px -3px rgba(23,50,74,0.16);
}
.pad { padding-left: clamp(22px, 3.5vw, 52px); padding-right: clamp(22px, 3.5vw, 52px); }

/* ---------- Header ---------- */

.site-head {
  display: flex; flex-wrap: wrap; gap: 18px;
  align-items: center; justify-content: space-between;
  padding-top: 18px; padding-bottom: 18px;
  border-bottom: 1px solid var(--rule);
}
.brand { display: flex; align-items: center; gap: 16px; text-decoration: none; color: var(--ink); }
.brand img { height: 62px; width: auto; }
.brand-name { font-size: 28px; font-weight: 600; letter-spacing: -0.01em; line-height: 1.1; }
.site-nav { display: flex; flex-wrap: wrap; gap: 26px; align-items: center; font-size: 14.5px; }
.site-nav a { text-decoration: none; color: #3D5266; }
.site-nav a:hover { color: var(--accent); }

@media (max-width: 520px) {
  .brand img { height: 48px; }
  .brand-name { font-size: 22px; }
  .site-nav { gap: 18px; font-size: 14px; }
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block; text-decoration: none; font-weight: 600;
  border: 0; font-family: inherit; cursor: pointer;
  border-radius: 8px; background: var(--accent); color: #fff;
  box-shadow: 0 10px 20px -12px rgba(37,119,176,0.95);
}
.btn:hover { background: var(--ink); color: #fff; }
.site-nav .btn { padding: 11px 21px; color: #fff; }
.site-nav .btn:hover { color: #fff; }
.btn-lg { padding: 14px 26px; font-size: 15px; }
.btn-ghost {
  display: inline-block; text-decoration: none; color: var(--ink); font-size: 15px;
  padding: 14px 24px; border-radius: 8px; border: 1px solid #D5CDBE; background: #fff;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.eyebrow {
  font-size: 11.5px; letter-spacing: 0.15em; text-transform: uppercase;
  color: #1F5F91; margin: 0 0 18px;
}

/* ---------- Interior page header ---------- */

.page-hero {
  padding-top: clamp(36px, 5vw, 60px);
  padding-bottom: clamp(26px, 3.5vw, 38px);
}
.page-hero h1 {
  font-size: clamp(30px, 3.4vw, 44px); line-height: 1.2; letter-spacing: -0.015em;
  margin: 0 0 20px; max-width: 22ch; text-wrap: pretty;
}
.page-lede { font-size: 16.5px; line-height: 1.75; color: var(--body); margin: 0; max-width: 62ch; }

.page-meta {
  display: flex; flex-wrap: wrap; gap: 0 26px;
  padding-top: 14px; padding-bottom: 14px;
  border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
  background: var(--paper-alt); font-size: 13.5px; color: #4E6377;
}

/* ---------- Legal / prose ---------- */

.prose {
  padding-top: clamp(32px, 4vw, 50px);
  padding-bottom: clamp(32px, 4vw, 54px);
  max-width: 74ch;
}
.prose h2 {
  font-size: 24px; line-height: 1.3; margin: 40px 0 12px;
  padding-top: 18px; border-top: 1px solid var(--rule-soft); text-wrap: pretty;
}
.prose h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.prose h3 { font-size: 16px; font-weight: 600; margin: 26px 0 8px; color: var(--ink); }
.prose p { font-size: 16px; line-height: 1.75; color: var(--body); margin: 0 0 15px; }
.prose ul { margin: 0 0 18px; padding-left: 20px; }
.prose li { font-size: 16px; line-height: 1.7; color: var(--body); margin-bottom: 8px; }
.prose strong { color: var(--ink); font-weight: 600; }

.note {
  background: var(--paper-alt); border: 1px solid var(--rule);
  border-left: 3px solid var(--accent); border-radius: 4px;
  padding: 18px 22px; margin: 0 0 28px;
}
.note p { margin: 0; font-size: 15px; }

.callout {
  background: #fff; border: 1px solid var(--rule); border-radius: 10px;
  padding: 22px 26px 8px; margin: 0 0 28px;
  box-shadow: 0 16px 34px -28px rgba(23,50,74,0.6);
}
.callout p { margin: 0 0 12px; font-size: 15px; }

.contact-block {
  border-top: 1px solid var(--rule); background: var(--paper-alt);
  padding-top: clamp(28px, 3.5vw, 44px); padding-bottom: clamp(28px, 3.5vw, 44px);
  display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; align-items: flex-end;
}
.contact-block h2 { font-size: clamp(22px, 2.4vw, 28px); line-height: 1.25; margin: 0 0 10px; max-width: 20ch; }
.contact-block p { font-size: 15.5px; line-height: 1.7; color: #4E6377; margin: 0; max-width: 40ch; }
.contact-links { display: grid; gap: 10px; justify-items: start; }
.contact-links .btn { font-size: 17px; padding: 13px 24px; }

/* ---------- Footer ---------- */

.site-foot {
  border-top: 1px solid var(--rule);
  padding-top: 20px; padding-bottom: 26px;
  display: flex; flex-wrap: wrap; gap: 14px 26px; justify-content: space-between;
  font-size: 13px; color: var(--muted);
}
.foot-links { display: flex; flex-wrap: wrap; gap: 16px; }
.foot-links a { text-decoration: none; }