/* =========================================================
   SPARQ HEALTH — site-wide styles (production)
   Complements tokens.css. Recreates the prototype behaviors
   that the DC runtime handled inline (hover states, reveals,
   keyframes, responsive breakpoints).
   ========================================================= */

html, body { margin: 0; }
body { background: var(--sparq-white); overflow-x: hidden; }
*, *::before, *::after { box-sizing: border-box; }
img { max-width: 100%; }

/* ---------- scroll reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms cubic-bezier(0.22,0.61,0.36,1), transform 700ms cubic-bezier(0.22,0.61,0.36,1);
}
[data-reveal].revealed { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ---------- keyframes ---------- */
@keyframes kbZoom { 0% { transform: scale(1.0) translate(0,0); } 100% { transform: scale(1.05) translate(-0.8%, 0.6%); } }
@keyframes fade7 { 0% {opacity:1} 14.3% {opacity:1} 20% {opacity:0} 94% {opacity:0} 100% {opacity:1} }
@keyframes riseIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes lifeRipple { 0% { transform: scale(0.3); opacity: 0; } 10% { opacity: 0.5; } 60% { opacity: 0.16; } 100% { transform: scale(1.05); opacity: 0; } }
@keyframes tickerScroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- newsletter show/hide (inline display styles would otherwise
   override the hidden attribute) ---------- */
[data-newsletter-success][hidden],
[data-newsletter-caption][hidden],
form[data-newsletter][hidden] { display: none !important; }

/* ---------- hover utilities (replace prototype style-hover) ---------- */
.btn-ink { transition: background var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out); }
.btn-ink:hover { background: var(--sparq-sage-deep) !important; }

.btn-sage { transition: background var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out); }
.btn-sage:hover { background: var(--sparq-sage-deep) !important; color: var(--sparq-white) !important; }

.btn-sage-deep { transition: background var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out); }
.btn-sage-deep:hover { background: var(--sparq-ink-95) !important; color: var(--sparq-white) !important; }

.btn-outline { transition: background var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out); }
.btn-outline:hover { background: var(--sparq-ink-95) !important; color: var(--sparq-white) !important; }

.btn-sage-soft { transition: background var(--dur-2) var(--ease-out); }
.btn-sage-soft:hover { background: var(--sparq-sage-soft) !important; }

.lnk-sage { transition: color var(--dur-1) var(--ease-out), border-color var(--dur-1) var(--ease-out); }
.lnk-sage:hover { color: var(--sparq-sage-deep) !important; border-color: var(--sparq-sage-deep) !important; }

.chip-hover { transition: background var(--dur-2) var(--ease-out), border-color var(--dur-2) var(--ease-out); }
.chip-hover:hover { background: var(--sparq-sage-wash) !important; border-color: var(--sparq-sage-mid) !important; }

.faq-row { transition: background var(--dur-1) var(--ease-out); }
.faq-row:hover { background: var(--sparq-ink-04); }

.lab-row { transition: background var(--dur-1) var(--ease-out); }
.lab-row:hover { background: var(--sparq-sage-wash); }

.post-row { transition: background var(--dur-1) var(--ease-out); }
.post-row:hover { background: var(--sparq-ink-04); }

.arrow-btn { transition: background var(--dur-2) var(--ease-out), border-color var(--dur-2) var(--ease-out); }
.arrow-btn:hover { background: var(--sparq-sage-wash); border-color: var(--sparq-sage-mid); }

/* approach / step cards keep their tilt transition */
.tilt-card { transition: transform 220ms var(--ease-out), box-shadow 220ms var(--ease-out); will-change: transform; }

/* =========================================================
   NAV
   ========================================================= */
.sn-bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.88);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: background 420ms var(--ease-out), border-color 420ms var(--ease-out);
}
.sn-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px clamp(16px,4vw,56px); }
.sn-logo { font-family: var(--font-logo); font-size: 30px; letter-spacing: 0.02em; color: var(--sparq-ink-95); border: none; text-decoration: none; transition: color 420ms; }
.sn-links { display: flex; align-items: center; gap: 32px; font-family: var(--font-sans); font-size: 14px; }
.sn-link {
  cursor: pointer; color: var(--sparq-ink-95); border: none; text-decoration: none;
  transition: color 220ms var(--ease-out); padding-bottom: 2px;
  border-bottom: 1px solid transparent; display: inline-flex; align-items: center; gap: 6px;
}
.sn-link:hover { color: var(--sparq-sage-deep); }
.sn-link.active { border-bottom-color: var(--sparq-sage-deep); }
.sn-chev { transition: transform 220ms var(--ease-out); }
.sn-group[data-open="1"] .sn-chev { transform: rotate(180deg); }
.sn-cta { background: var(--sparq-sage-mid); color: var(--sparq-ink-95); border-radius: 999px; padding: 10px 22px; border: none; text-decoration: none; }

.sn-panel {
  border-top: 1px solid var(--line); background: var(--sparq-white);
  padding: 36px clamp(16px,4vw,56px) 44px;
  display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: clamp(24px,4vw,64px);
  box-shadow: var(--shadow-2);
}
.sn-panel[hidden] { display: none; }
.sn-grouplabel { font-family: var(--font-sans); font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--fg2); margin-bottom: 14px; }
.sn-panel a { font-family: var(--font-sans); font-size: 15px; color: var(--sparq-ink-95); border: none; text-decoration: none; padding: 7px 0; display: block; transition: color 160ms var(--ease-out); }
.sn-panel a:hover { color: var(--sparq-sage-deep); }
.sn-about {
  position: absolute; top: 100%; right: clamp(16px,4vw,56px); margin-top: -1px;
  background: var(--sparq-white); border: 1px solid var(--line); border-radius: 0 0 14px 14px;
  box-shadow: var(--shadow-2); padding: 14px 24px; display: flex; flex-direction: column; min-width: 190px;
}
.sn-about[hidden] { display: none; }
.sn-about a { font-family: var(--font-sans); font-size: 15px; color: var(--sparq-ink-95); border: none; text-decoration: none; padding: 8px 0; transition: color 160ms var(--ease-out); }
.sn-about a:hover { color: var(--sparq-sage-deep); }

.sn-burger { display: none; width: 44px; height: 44px; margin: -4px -10px -4px 0; align-items: center; justify-content: center; flex-direction: column; gap: 5px; cursor: pointer; position: relative; z-index: 1001; }
.sn-burger span { display: block; width: 22px; height: 2px; background: var(--sparq-ink-95); border-radius: 2px; transition: transform 220ms var(--ease-out), background 220ms; }
.sn-spacer { height: 63px; }

.sn-mobile {
  position: fixed; inset: 0; z-index: 998; background: rgba(255,255,255,0.97);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  display: flex; flex-direction: column; padding: 88px clamp(20px,6vw,40px) 40px; overflow: auto;
}
.sn-mobile[hidden] { display: none; }
.sn-mobile a { font-family: var(--font-sans); color: var(--sparq-ink-95); border: none; text-decoration: none; }
.sn-mobile .sn-m-big { font-family: var(--font-display); font-size: 24px; text-transform: lowercase; padding: 12px 4px; border-bottom: 1px solid var(--line); }
.sn-mobile .sn-m-item { font-size: 17px; padding: 11px 4px; border-bottom: 1px solid var(--line); }
.sn-mobile .sn-m-label { font-family: var(--font-sans); font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--fg2); margin-bottom: 6px; padding: 0 4px; }
.sn-mobile .sn-m-cta { margin-top: 32px; background: var(--sparq-sage-mid); color: var(--sparq-ink-95); font-family: var(--font-sans); font-size: 16px; padding: 18px 32px; border-radius: 999px; text-align: center; }

/* nav open state (burger → X) */
.sn-burger[data-open="1"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.sn-burger[data-open="1"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* overlay (homepage): transparent nav over hero until scrolled */
.sn-bar.overlay:not(.solid) { background: transparent; border-bottom-color: transparent; }
.sn-bar.overlay:not(.solid) .sn-inner { padding-top: 24px; padding-bottom: 24px; }
.sn-bar.overlay:not(.solid) .sn-logo,
.sn-bar.overlay:not(.solid) .sn-link { color: var(--sparq-white); }
.sn-bar.overlay:not(.solid) .sn-link:hover { color: var(--sparq-sage-soft); }
.sn-bar.overlay:not(.solid) .sn-burger span { background: var(--sparq-white); }

@media (max-width: 940px) {
  .sn-links { display: none !important; }
  .sn-panel, .sn-about { display: none !important; }
  .sn-burger { display: flex !important; }
}
@media (min-width: 941px) {
  .sn-mobile { display: none !important; }
}

/* =========================================================
   FOOTER responsive
   ========================================================= */
@media (max-width: 820px) {
  .footer-strip { flex-direction: column; align-items: flex-start !important; gap: 16px; }
  .footer-strip .footer-links { flex-wrap: wrap; gap: 12px 24px !important; }
  .footer-strip .footer-links a { padding: 10px 0; }
  .home-footer-cols { gap: 28px !important; }
  .home-footer-cols a { padding: 6px 0; }
  .stats-strip { grid-template-columns: repeat(2, 1fr) !important; }
  .post-grid { grid-template-columns: 1fr !important; gap: 18px !important; }
  .post-grid [role="img"] { min-height: 200px !important; }
  .swipe-hint { display: block !important; }
}

/* homepage big footer stacking handled by flex-wrap already */

/* homepage hero copy: go full-width + left aligned on smaller screens so the
   CTA never clips (desktop keeps the right-aligned two-column layout) */
@media (max-width: 820px) {
  .hero-copy { max-width: 100% !important; width: 100%; align-items: stretch !important; }
  .hero-copy p { text-align: left !important; }
  .hero-copy > a { align-self: flex-start; }
  .hero-copy > span { align-self: flex-start; }
}

/* =========================================================
   Blog article body
   ========================================================= */
.sparq-article { font-family: var(--font-body); font-size: 16px; line-height: 1.65; color: var(--fg2); }
.sparq-article p { margin: 0 0 18px; max-width: 720px; }
.sparq-article h3 { font-family: var(--font-display); font-weight: 400; letter-spacing: -0.01em; text-transform: lowercase; font-size: 28px; color: var(--sparq-ink-95); margin: 40px 0 16px; }
.sparq-article ul { margin: 0 0 18px; padding-left: 22px; max-width: 700px; }
.sparq-article li { margin-bottom: 8px; }
.sparq-article strong { color: var(--sparq-ink-95); font-weight: 600; }
.sparq-article em { color: var(--fg1); }

/* =========================================================
   Contact + Metabolic responsive helpers
   ========================================================= */
@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr !important; }
  .contact-map { min-height: 340px !important; }
  .mpp-tiers { grid-template-columns: 1fr !important; }
}
@media (max-width: 720px) {
  .nb-form { flex-direction: column !important; }
  .nb-form input { width: 100% !important; box-sizing: border-box; }
  .nb-form button { width: 100% !important; }
  .event-row { grid-template-columns: 1fr !important; gap: 16px !important; }
  .event-date { flex-direction: row !important; align-items: baseline !important; gap: 10px !important; }
  .event-cta { justify-self: start !important; }
}

/* labs sticky category chips sit below the fixed nav */
.labs-chipnav { position: sticky; top: 63px; z-index: 900; }