/* ============================================================
   PaleoFit — Site stylesheet
   Shared layout, nav, footer, buttons, sections, responsive
   ============================================================ */

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--fg); }

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

/* ============================================================
   CONTAINER
   ============================================================ */
.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--space-6); }
.container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 var(--space-6); }

@media (min-width: 768px) {
  .container, .container-narrow { padding: 0 var(--space-10); }
}

/* ============================================================
   NAV / HEADER
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(244, 240, 232, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header.on-dark-context {
  background: rgba(14, 26, 20, 0.78);
  border-bottom-color: var(--forest-700);
  color: var(--fg-on-dark);
}
.site-header.on-dark-context .nav-link { color: var(--fg-on-dark); }
.site-header.on-dark-context .brand-tagline { color: var(--sage-300); }
.site-header.on-dark-context .brand-wordmark { color: var(--bone-50); }
.site-header.on-dark-context .nav-divider { background: var(--forest-600); }

.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--container); margin: 0 auto;
  padding: 16px var(--space-6);
  gap: 24px;
}
@media (min-width: 768px) {
  .nav-inner { padding: 18px var(--space-10); }
}

.brand-lockup { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-wordmark {
  font-family: var(--font-display);
  font-variation-settings: var(--fraunces-axes);
  font-weight: 500; font-size: 24px; letter-spacing: -0.025em;
  color: var(--forest-800); line-height: 1;
}
.nav-divider { width: 1px; height: 16px; background: var(--bone-400); display: none; }
.brand-tagline {
  font-family: var(--font-body); font-size: 12px;
  color: var(--stone-700); letter-spacing: 0.02em;
  display: none;
}
@media (min-width: 640px) {
  .nav-divider, .brand-tagline { display: inline-block; }
}

.nav-primary { display: none; align-items: center; gap: 28px; }
.nav-link {
  font-family: var(--font-body); font-size: 14px; font-weight: 500;
  color: var(--fg); text-decoration: none;
  transition: color var(--dur-fast) var(--ease-std);
}
.nav-link:hover { color: var(--forest-800); }
.nav-link.active { color: var(--forest-800); }
.nav-link.active::after {
  content: ""; display: block; height: 1.5px; background: var(--amber-600);
  margin-top: 4px; width: 100%;
}

@media (min-width: 980px) {
  .nav-primary { display: flex; }
}

/* mobile nav toggle */
.nav-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; background: transparent;
  border: 1px solid var(--border-strong); border-radius: var(--r-sm);
  cursor: pointer; padding: 0;
}
.nav-toggle svg { width: 18px; height: 18px; stroke: var(--fg); }
@media (min-width: 980px) { .nav-toggle { display: none; } }

.mobile-menu {
  display: none; position: fixed; inset: 0; z-index: 100;
  background: var(--bone-100);
  flex-direction: column;
  padding: 20px var(--space-6) 40px;
}
.mobile-menu.open { display: flex; }
.mobile-menu .mm-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 40px; }
.mobile-menu .mm-link {
  font-family: var(--font-display); font-variation-settings: var(--fraunces-axes);
  font-weight: 500; font-size: 32px; color: var(--ink-900);
  text-decoration: none; padding: 14px 0;
  border-bottom: 1px solid var(--bone-300); letter-spacing: -0.015em;
}
.mobile-menu .mm-link.active { color: var(--forest-800); }
.mobile-menu .mm-cta { margin-top: 32px; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-body); font-weight: 600; letter-spacing: var(--ls-button);
  font-size: 14px; line-height: 1;
  padding: 14px 22px;
  border: 1px solid transparent; border-radius: var(--r-sm);
  cursor: pointer; text-decoration: none;
  transition: all var(--dur-base) var(--ease-std);
  white-space: nowrap;
}
.btn-primary { background: var(--forest-800); color: var(--bone-100); }
.btn-primary:hover { background: var(--forest-900); color: var(--bone-50); }
.btn-accent { background: var(--amber-600); color: var(--bone-50); }
.btn-accent:hover { background: var(--amber-700); color: var(--bone-50); }
.btn-ghost { background: transparent; color: var(--forest-800); border-color: var(--forest-800); }
.btn-ghost:hover { background: var(--forest-800); color: var(--bone-100); }
.btn-ghost-dark { background: transparent; color: var(--bone-100); border-color: var(--sage-600); }
.btn-ghost-dark:hover { background: var(--forest-700); border-color: var(--sage-300); }
.btn-lg { font-size: 15px; padding: 18px 28px; }
.btn-sm { font-size: 13px; padding: 11px 18px; }

.btn .arrow { transition: transform var(--dur-base) var(--ease-std); }
.btn:hover .arrow { transform: translateX(3px); }

/* text link with arrow */
.text-link {
  font-family: var(--font-body); font-weight: 500; font-size: 15px;
  color: var(--forest-800); text-decoration: none;
  display: inline-flex; align-items: center; gap: 8px;
  border-bottom: 1px solid var(--forest-800);
  padding-bottom: 2px;
}
.text-link:hover { color: var(--ink-900); }
.text-link .arrow { transition: transform var(--dur-base) var(--ease-std); }
.text-link:hover .arrow { transform: translateX(3px); }

/* ============================================================
   SECTIONS — vertical rhythm
   ============================================================ */
section { padding: 64px 0; }
@media (min-width: 768px) { section { padding: 96px 0; } }
@media (min-width: 1100px) { section { padding: 120px 0; } }

.section-dark { background: var(--forest-900); color: var(--fg-on-dark); }
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 { color: var(--bone-50); }
.section-darker { background: var(--forest-950); color: var(--fg-on-dark); }
.section-inset { background: var(--bone-200); }
.section-cream { background: var(--bone-50); }

.eyebrow {
  font-family: var(--font-body);
  font-size: 11px; font-weight: 600;
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--fg-muted);
}
.section-dark .eyebrow { color: var(--sage-300); }

/* ============================================================
   GRID UTILITIES
   ============================================================ */
.grid { display: grid; gap: var(--space-6); }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); gap: var(--space-10); }
  .grid-3 { grid-template-columns: repeat(3, 1fr); gap: var(--space-8); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--bone-50); border: 1px solid var(--border);
  border-radius: var(--r-md); padding: var(--space-6);
}
.card-dark {
  background: var(--forest-950); border: 1px solid var(--forest-700);
  border-radius: var(--r-md); padding: var(--space-6); color: var(--fg-on-dark);
}

/* ============================================================
   PULL QUOTE
   ============================================================ */
.pullquote {
  font-family: var(--font-display); font-variation-settings: var(--fraunces-axes);
  font-style: italic; font-weight: 400;
  font-size: clamp(24px, 4vw, 40px);
  line-height: 1.2; color: var(--fg-strong);
  border-left: 2px solid var(--accent);
  padding-left: var(--space-6);
  margin: var(--space-8) 0;
}
.section-dark .pullquote { color: var(--bone-50); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--forest-950); color: var(--sage-300);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid; grid-template-columns: 1fr; gap: 40px;
  padding-bottom: 48px; border-bottom: 1px solid var(--forest-700);
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}
.footer-tagline {
  font-family: var(--font-display); font-variation-settings: var(--fraunces-axes);
  font-style: italic; font-size: 18px; color: var(--sage-600);
  margin-top: 14px; max-width: 360px; line-height: 1.4;
}
.footer-col-title {
  font-family: var(--font-body); font-size: 11px; font-weight: 600;
  letter-spacing: var(--ls-eyebrow); text-transform: uppercase;
  color: var(--sage-600); margin-bottom: 16px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-family: var(--font-body); font-size: 14px; color: var(--bone-200);
  text-decoration: none;
}
.footer-links a:hover { color: var(--bone-50); }
.footer-bottom {
  padding-top: 24px; display: flex; flex-direction: column; gap: 8px;
  font-family: var(--font-mono); font-size: 11px; color: var(--stone-700);
}
@media (min-width: 768px) {
  .footer-bottom { flex-direction: row; justify-content: space-between; align-items: center; }
}
.footer-bottom .micro-tag { color: var(--forest-400); }

/* ============================================================
   HELPERS
   ============================================================ */
.eyebrow-row { display: flex; gap: 16px; align-items: center; }
.eyebrow-row .rule { flex: 1; height: 1px; background: var(--border); max-width: 60px; }

.num, .mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

.placeholder-tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--stone-500); padding: 4px 8px;
  border: 1px dashed var(--border-strong); border-radius: 2px;
}

.photo-frame {
  background: var(--stone-800); border-radius: var(--r-sm);
  overflow: hidden; position: relative;
}
.photo-frame img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(0.15) contrast(1.05); }

.divider { height: 1px; background: var(--border); margin: var(--space-8) 0; }
.divider-dark { height: 1px; background: var(--forest-700); margin: var(--space-8) 0; }

/* fade-in on view */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out); }
.reveal.is-visible { opacity: 1; transform: none; }

/* nav bar bookend dot */
.dot-amber { width: 6px; height: 6px; background: var(--amber-600); border-radius: 50%; display: inline-block; }