/* Luma Strategy — shared site chrome (base, header, footer, pills).
   Requires tokens.css. Page-specific styles live in each page or in article.css. */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 76px; }
body { margin: 0; background: var(--surface-page); font-family: var(--font-body); color: var(--fg-1); -webkit-font-smoothing: antialiased; }
a { color: var(--fg-link); text-decoration: none; }
a:hover { color: var(--fg-link-hover); }
input, textarea, button { font: inherit; }
img { max-width: 100%; }
[hidden] { display: none !important; }

.container { max-width: var(--container-max); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.eyebrow { font: 500 13px/1 var(--font-display); letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; color: var(--fg-accent); }
.accent-serif { font-family: var(--font-serif-accent); font-style: italic; font-weight: 400; }
.tri-rule { display: flex; height: 6px; }
.tri-rule span { flex: 1; }
.tri-rule span:nth-child(1) { background: var(--luma-teal); }
.tri-rule span:nth-child(2) { background: var(--luma-raspberry); }
.tri-rule span:nth-child(3) { background: var(--luma-gold); }

/* Pills */
.pill { display: inline-block; border-radius: var(--radius-pill); font: 500 16px/1 var(--font-body); transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out); }
.pill-primary { color: var(--luma-white); background: var(--action-primary); padding: 17px 28px; }
.pill-primary:hover { color: var(--luma-white); background: var(--action-primary-hover); }
.pill-accent { color: var(--luma-white); background: var(--action-accent); border: none; cursor: pointer; }
.pill-accent:hover { color: var(--luma-white); background: var(--action-accent-hover); }
.pill-accent:active { background: var(--action-accent-press); }
.pill-outline { color: var(--luma-porcelain); padding: 16px 27px; border: 1px solid rgba(247,244,241,.4); }
.pill-outline:hover { color: var(--luma-porcelain); border-color: var(--luma-porcelain); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(18,24,28,.92); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.site-header .container { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-header .logo { display: flex; }
.site-header .logo img { height: 56px; width: auto; display: block; }
.site-nav { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.site-nav .nav-link { font: 500 16px/1 var(--font-body); color: var(--luma-porcelain); opacity: .78; transition: opacity var(--dur-fast) var(--ease-out); }
.site-nav .nav-link:hover, .site-nav .nav-link[aria-current="page"] { color: var(--luma-porcelain); opacity: 1; }
.nav-ctas { display: flex; gap: 10px; align-items: center; }
.nav-ctas .pill { font-size: 14px; }
.nav-ctas .pill-ghost { color: var(--luma-porcelain); padding: 11px 18px; border: 1px solid var(--border-on-dark); }
.nav-ctas .pill-ghost:hover { color: var(--luma-porcelain); border-color: var(--luma-porcelain); }
.nav-ctas .pill-accent { padding: 12px 20px; }

/* Footer */
.site-footer { background: var(--surface-dark); color: var(--fg-on-dark); }
.site-footer .tri-rule { height: 4px; }
.site-footer .container { padding-top: 48px; padding-bottom: 48px; display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.site-footer img { height: 56px; width: auto; display: block; }
.site-footer p { font: 400 15px/1.4 var(--font-body); color: var(--fg-on-dark-2); margin: 0; }

/* Dark page hero used by articles and resources (matches the homepage hero band) */
.page-band { background: var(--surface-dark); color: var(--fg-on-dark); }
.page-band .back-link { display: inline-flex; align-items: center; gap: 6px; font: 500 16px/1 var(--font-body); color: var(--fg-on-dark-2); margin-bottom: 32px; transition: color var(--dur-fast) var(--ease-out); }
.page-band .back-link:hover { color: var(--luma-porcelain); }
.page-band .eyebrow { color: var(--luma-seafoam); margin: 0 0 18px; }

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