/* HeartFlow Landing — V5.3 (Cloudflare Pages) */
:root{
  --max: 1120px;
  --gutter: clamp(18px, 4vw, 38px);
  --sectionPad: clamp(22px, 3.4vw, 30px);
  --radius: 22px;
  --radiusSm: 16px;

  --bg: #f6f7fb;
  --surface: rgba(255,255,255,0.72);
  --surface2: rgba(255,255,255,0.9);
  --text: #0b1220;
  --muted: rgba(11,18,32,0.72);
  --border: rgba(11,18,32,0.10);

  /* Product accents (inspired by label colors) */
  --a1: #163D9A; /* blue */
  --a2: #2D6CFF; /* vivid blue */
  --a3: #F3C66C; /* soft gold */

  /* Modern pastels */
  --p1: #CDEBFF;
  --p2: #FFE4C9;
  --p3: #E9E2FF;

  --g1: radial-gradient(1200px 800px at 20% 15%, rgba(45,108,255,0.22), transparent 60%),
        radial-gradient(900px 700px at 85% 20%, rgba(243,198,108,0.18), transparent 55%),
        radial-gradient(900px 700px at 50% 90%, rgba(233,226,255,0.22), transparent 60%),
        linear-gradient(180deg, rgba(255,255,255,0.0), rgba(255,255,255,0.0));
  --g2: linear-gradient(90deg, rgba(22,61,154,0.85), rgba(45,108,255,0.65));
  --ctaGrad: linear-gradient(90deg, rgba(45,108,255,0.95), rgba(243,198,108,0.95));
  --shadow: 0 12px 40px rgba(11,18,32,0.12);
  --shadowSm: 0 10px 26px rgba(11,18,32,0.10);

  --focus: 0 0 0 3px rgba(45,108,255,0.35), 0 0 0 6px rgba(243,198,108,0.18);
  --noise: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.12'/%3E%3C/svg%3E");
}

:root[data-theme="dark"]{
  --bg: #070b14;
  --surface: rgba(14,20,34,0.68);
  --surface2: rgba(14,20,34,0.92);
  --text: #EAF0FF;
  --muted: rgba(234,240,255,0.72);
  --border: rgba(234,240,255,0.12);
  --shadow: 0 18px 60px rgba(0,0,0,0.42);
  --shadowSm: 0 14px 36px rgba(0,0,0,0.34);
  --g1: radial-gradient(1200px 800px at 20% 15%, rgba(45,108,255,0.28), transparent 60%),
        radial-gradient(900px 700px at 85% 20%, rgba(243,198,108,0.18), transparent 55%),
        radial-gradient(900px 700px at 50% 90%, rgba(233,226,255,0.22), transparent 60%),
        linear-gradient(180deg, rgba(7,11,20,0.0), rgba(7,11,20,0.0));
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
html{ overflow-x:hidden; overflow-x:clip; scroll-behavior:smooth; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color: var(--text);
  background: var(--bg);
  background-image: var(--g1), var(--noise);
  background-blend-mode: screen;
  line-height:1.5;
  overflow-x:hidden;
  overflow-x:clip;
}
img{ max-width:100%; height:auto; display:block; }
a{ color:inherit; text-decoration:none; }
a:hover{ text-decoration:underline; text-underline-offset: 3px; }
:focus-visible{ outline:none; box-shadow: var(--focus); border-radius: 10px; }

.container{
  max-width: var(--max);
  margin-inline:auto;
  padding-inline: var(--gutter);
}
.section{
  padding-block: var(--sectionPad);
  position:relative;
}
.section.is-full{
  min-height: 100svh;
  display:flex;
  align-items:center;
}
.section + .section{ border-top: 1px solid rgba(255,255,255,0.0); }

.small{ font-size: 0.95rem; color: var(--muted); }
.kicker{
  display:inline-flex;
  gap:10px;
  align-items:center;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.35);
  backdrop-filter: blur(8px);
  box-shadow: 0 10px 30px rgba(11,18,32,0.08);
}
:root[data-theme="dark"] .kicker{ background: rgba(0,0,0,0.22); }

h1,h2,h3{ letter-spacing: -0.02em; line-height:1.15; margin:0 0 12px 0; }
h1{ font-size: clamp(2.1rem, 4.8vw, 3.35rem); }
h2{ font-size: clamp(1.6rem, 3.1vw, 2.15rem); }
h3{ font-size: 1.1rem; margin-bottom: 8px; }
p{ margin: 0 0 12px 0; color: var(--muted); }
ul{ margin: 10px 0 0 0; padding-left: 18px; color: var(--muted); }

header.site-header{
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(12px);
  background: rgba(255,255,255,0.55);
  border-bottom: 1px solid var(--border);
}
:root[data-theme="dark"] header.site-header{
  background: rgba(7,11,20,0.55);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-block: 12px;
  gap: 12px;
}
.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  min-width: 170px;
}
.brand svg{ width: 30px; height: 30px; }
.brand .wordmark{
  display:flex;
  flex-direction:column;
  line-height:1.05;
}
.brand .wordmark strong{ font-weight: 750; letter-spacing:-0.03em; }
.brand .wordmark span{ font-size: 0.82rem; color: var(--muted); }

.nav-desktop{
  display:flex;
  align-items:center;
  gap: 18px;
  font-size: 0.95rem;
}
.nav-desktop a{ opacity: 0.85; }
.nav-desktop a:hover{ opacity: 1; text-decoration:none; }

.header-actions{
  display:flex;
  align-items:center;
  gap: 10px;
}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.40);
  backdrop-filter: blur(8px);
  cursor:pointer;
}
:root[data-theme="dark"] .icon-btn{ background: var(--surface); }
.icon-btn:hover{ box-shadow: var(--shadowSm); }

.btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding: 12px 16px;
  border-radius: 16px;
  font-weight: 680;
  letter-spacing: -0.01em;
  cursor:pointer;
  border: 0;
  color: #061025;
  background: rgba(255,255,255,0.90);
  box-shadow: var(--shadowSm);
  transition: transform 160ms ease, box-shadow 160ms ease, filter 160ms ease;
}
.btn:hover{ transform: translateY(-1px); box-shadow: var(--shadow); }
.btn:active{ transform: translateY(0px) scale(0.99); }
.btn.primary{
  background: var(--ctaGrad);
  color: #081225;
}
.btn.ghost{
  background: rgba(255,255,255,0.42);
  border: 1px solid var(--border);
  color: var(--text);
}
:root[data-theme="dark"] .btn.ghost{ background: rgba(0,0,0,0.25); }

.btn .shine{
  position:absolute;
  inset:-1px;
  border-radius: inherit;
  pointer-events:none;
  background: linear-gradient(135deg, rgba(255,255,255,0.0), rgba(255,255,255,0.35), rgba(255,255,255,0.0));
  opacity:0;
  transition: opacity 180ms ease;
}
.btn:hover .shine{ opacity: 0.55; }

.progress{
  height: 2px;
  background: linear-gradient(90deg, rgba(45,108,255,0.9), rgba(243,198,108,0.9));
  width: 0%;
  opacity: 0.85;
}

.hero-grid{
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(18px, 3.4vw, 34px);
  align-items: start;
}
.hero-card{
  padding: clamp(18px, 3.2vw, 28px);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap: 12px;
  margin-top: 16px;
}
.hero-bullets{
  margin-top: 14px;
  padding-left: 18px;
}
.hero-media{
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadowSm);
  padding: 18px;
  overflow:hidden;
}
.hero-media .imgwrap{
  display:grid;
  place-items:center;
  aspect-ratio: 1 / 1;
}
.hero-media img{ object-fit: contain; width:100%; height:100%; }

.grid-3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.card{
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadowSm);
  padding: 18px;
  display:flex;
  flex-direction:column;
  align-items:stretch;
  min-height: 220px;
}
.card .icon{
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display:grid;
  place-items:center;
  background: rgba(45,108,255,0.12);
  border: 1px solid rgba(45,108,255,0.18);
  margin-bottom: 12px;
}
.card p{ margin-bottom: 0; }

.experience{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(18px, 3.4vw, 32px);
  align-items:start;
}
.sticky-media{
  position: sticky;
  top: 92px; /* below header */
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  overflow:hidden;
  min-height: 520px;
}
.media-stack{
  position:relative;
  height: 520px;
}

.media-stack picture{
  position:absolute;
  inset:0;
  margin:0;
  width:100%;
  height:100%;
  opacity:0;
  transform: scale(1.02);
  transition: opacity 420ms ease, transform 520ms ease;
}
.media-stack picture.is-active{ opacity:1; transform: scale(1.0); }
.media-stack picture img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit: cover;
}

.steps{
  display:flex;
  flex-direction:column;
  gap: 16px;
}
.step{
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadowSm);
  padding: 18px;
}
.step.is-active{
  border-color: rgba(45,108,255,0.35);
  box-shadow: var(--shadow);
}
.step h3{ margin:0 0 6px 0; }
.step p{ margin:0; }

.ingredients-grid{
  display:grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}
.ing{
  border-radius: var(--radiusSm);
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(10px);
  padding: 14px;
  box-shadow: var(--shadowSm);
  display:flex;
  flex-direction:column;
  gap: 10px;
}
.ing .thumb{
  border-radius: 14px;
  overflow:hidden;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.45);
  aspect-ratio: 4 / 3;
  display:grid;
  place-items:center;
}
:root[data-theme="dark"] .ing .thumb{ background: rgba(0,0,0,0.24); }
.ing .thumb img{ width:100%; height:100%; object-fit:cover; }
.ing p{ font-size: 0.94rem; margin:0; }

.pricing{
  display:grid;
  grid-template-columns: repeat(3,1fr);
  gap: 16px;
}
.plan{
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadowSm);
  padding: 18px;
  display:flex;
  flex-direction:column;
  align-items:stretch;
  position:relative;
  overflow:hidden;
}
.plan .tag{
  font-size: 0.85rem;
  color: var(--muted);
  display:flex;
  justify-content:space-between;
  gap:10px;
  align-items:center;
}
.plan .badge{
  font-size: 0.78rem;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(45,108,255,0.25);
  background: rgba(45,108,255,0.10);
  color: var(--text);
}
.plan .product{
  margin-top: 10px;
  border-radius: var(--radiusSm);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.40);
  display:grid;
  place-items:center;
  padding: 10px;
  aspect-ratio: 4/3;
}
:root[data-theme="dark"] .plan .product{ background: rgba(0,0,0,0.22); }
.plan .product img{ width:100%; height:100%; object-fit: contain; }
.plan h3{ margin-top: 12px; }
.plan .price{
  font-size: 1.05rem;
  color: var(--text);
  font-weight: 760;
  margin-top: 2px;
}
.plan .sub{
  font-size: 0.9rem;
  color: var(--muted);
  margin-top: 6px;
}
.plan__cta{
  margin-top:auto;
  padding-top: 14px;
  display:flex;
  flex-direction:column;
  gap: 10px;
}
.plan__cta .note{
  font-size: 0.86rem;
  color: var(--muted);
  text-align:center;
}

.guarantee-wrap{
  display:grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 18px;
  align-items:center;
}
.guarantee-badge{
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadowSm);
  padding: 18px;
  display:grid;
  place-items:center;
}
.guarantee-badge img{ width:min(260px, 100%); height:auto; object-fit:contain; }

.guarantee-badge picture{ width:100%; display:grid; place-items:center; }
.guarantee-badge img{ margin-inline:auto; }

.bonus-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.bonus{
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadowSm);
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.bonus .media{ aspect-ratio: 16/10; overflow:hidden; }
.bonus .media img{ width:100%; height:100%; object-fit:cover; }
.bonus .body{ padding: 16px; }

.faq{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.accordion{
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadowSm);
  overflow:hidden;
}
.acc-btn{
  width:100%;
  text-align:left;
  padding: 16px;
  background: transparent;
  border: 0;
  cursor:pointer;
  color: var(--text);
  display:flex;
  justify-content:space-between;
  gap: 14px;
  font-weight: 700;
}
.acc-btn span{ opacity: 0.86; }
.acc-panel{
  padding: 0 16px 16px 16px;
  display:none;
}
.acc-panel[hidden]{ display:none; }
.acc-panel p{ margin:0; }

footer{
  border-top: 1px solid var(--border);
  padding-block: 22px;
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
  align-items:start;
}
.footer-links{
  display:flex;
  flex-wrap:wrap;
  gap: 10px 14px;
  font-size: 0.95rem;
}
.footer-links a{ opacity:0.85; }
.footer-links a:hover{ opacity:1; text-decoration:none; }
.lang-inline{
  margin-top: 10px;
  font-size: 0.95rem;
  color: var(--muted);
}
.lang-inline a{ text-decoration: underline; text-underline-offset: 3px; }

.lang-switch{
  position:relative;
}
.popover{
  position:absolute;
  top: 46px;
  right: 0;
  min-width: 220px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface2);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  padding: 10px;
  display:none;
  z-index: 1400;
}
.popover.is-open{ display:block; }
.popover a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 10px 10px;
  border-radius: 12px;
  text-decoration:none;
  opacity:1;
}
.popover a:hover{ background: rgba(45,108,255,0.10); }
.popover a[aria-current="true"]{ background: rgba(243,198,108,0.16); }

.mobile-only{ display:none; }
.desktop-only{ display:flex; }

.menu-btn{
  display:none;
}

.mobile-drawer{
  position: fixed;
  inset: 0;
  z-index: 2200;
  display:none;
}
.mobile-drawer.is-open{ display:block; }
.drawer-backdrop{
  position:absolute;
  inset:0;
  background: rgba(0,0,0,0.45);
}
.drawer-panel{
  position:absolute;
  inset: 0 0 auto 0;
  margin: 12px;
  border-radius: 22px;
  border: 1px solid var(--border);
  background: var(--surface2);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
  padding: 14px;
  max-height: calc(100svh - 24px);
  overflow:auto;
}
.drawer-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.drawer-nav{
  display:flex;
  flex-direction:column;
  padding-top: 10px;
  gap: 4px;
}
.drawer-nav a{
  padding: 12px 10px;
  border-radius: 14px;
  text-decoration:none;
}
.drawer-nav a:hover{ background: rgba(45,108,255,0.10); }

.floating-cta{
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  z-index: 950;
  display:none;
}
.floating-cta .bar{
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--surface2);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
  padding: 10px;
  display:flex;
  gap: 10px;
  align-items:center;
  justify-content:space-between;
}
.floating-cta .bar .hint{
  font-size: 0.92rem;
  color: var(--muted);
  line-height:1.2;
}

[data-reveal]{
  opacity:0;
  transform: translateY(14px);
  transition: opacity 520ms ease, transform 520ms ease;
}
[data-reveal].is-visible{
  opacity:1;
  transform: translateY(0px);
}

@media (max-width: 900px){
  .hero-grid{ grid-template-columns: 1fr; }
  .experience{ grid-template-columns: 1fr; }
  .sticky-media{ top: 78px; min-height: 360px; }
  .media-stack{ height: 360px; }
  .grid-3{ grid-template-columns: 1fr; }
  .ingredients-grid{ grid-template-columns: 1fr 1fr; }
  .pricing{ grid-template-columns: 1fr; }
  .bonus-grid{ grid-template-columns: 1fr; }
  .faq{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; }
  .nav-desktop{ display:none; }
  .desktop-only{ display:none; }
  .mobile-only{ display:flex; }
  .menu-btn{ display:inline-flex; }
  .section.is-full{ min-height: auto; padding-top: var(--sectionPad); padding-bottom: var(--sectionPad); }
  .container{ text-align:center; }
  .hero-actions{ justify-content:center; }
  .plan__cta .note{ text-align:center; }
  .floating-cta{ display:block; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}