/* ===================================================================
   HOMECO — Design System
   Deep Slate Navy + Bio-Anchor Blue + Hydrogen Gradient, on Ice White.
   Newsreader (editorial serif) for statement type, Archivo (grotesk)
   for everything else. Built for an "active longevity" audience:
   high contrast, generous touch targets, calm motion.
=================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,400;0,500;0,600;0,700;0,800;1,600&display=swap');

/* ---------- Tokens ---------- */
:root{
  --ice: #F4F8FA;
  --white: #FFFFFF;
  --charcoal: #333333;
  --navy: #2C5270;
  --bio-anchor: #1D4461;
  --hydro-start: #0055A5;
  --hydro-end: #00A8E8;
  --hydro-gradient: linear-gradient(115deg, var(--hydro-start), var(--hydro-end));

  --navy-10: rgba(44,82,112,0.08);
  --navy-20: rgba(44,82,112,0.16);
  --bio-anchor-90: rgba(29,68,97,0.94);
  --cyan-glow: rgba(0,168,232,0.35);

  --font-display: 'Plus Jakarta Sans', 'Helvetica Neue', Arial, sans-serif;
  --font-sans: 'Plus Jakarta Sans', 'Helvetica Neue', Arial, sans-serif;

  --container: 1240px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  --radius-sm: 12px;
  --radius-md: 22px;
  --radius-lg: 32px;
  --radius-xl: 42px;

  --ease: cubic-bezier(.22,.61,.36,1);
  --dur-fast: .25s;
  --dur-med: .6s;
  --dur-slow: 1.1s;

  --shadow-card: 0 20px 60px -30px rgba(29,68,97,0.35);
  --shadow-lift: 0 30px 80px -25px rgba(29,68,97,0.45);
}

/* ---------- Reset ---------- */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; overflow-x: hidden; }
body{
  margin: 0;
  overflow-x: hidden;
  background: var(--ice);
  color: var(--charcoal);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family: inherit; }
h1,h2,h3,h4,p,figure{ margin: 0; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible{
  outline: 3px solid var(--hydro-end);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Type ---------- */
.eyebrow{
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--hydro-start);
}
.eyebrow--light{ color: var(--hydro-end); }

h1, .h1{
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.02;
  font-size: clamp(2.7rem, 5.8vw, 4.9rem);
  color: var(--navy);
}
h2, .h2{
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.08;
  font-size: clamp(2rem, 3.8vw, 3.2rem);
  color: var(--navy);
}
h3, .h3{
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.18;
  font-size: clamp(1.4rem, 2vw, 1.85rem);
  color: var(--navy);
}
em, .accent-italic{
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 800;
  background: var(--hydro-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede{
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
  line-height: 1.55;
  color: var(--bio-anchor);
  max-width: 46ch;
}
.body-copy{ max-width: 62ch; color: var(--charcoal); }
.body-copy p + p{ margin-top: 1.1em; }

/* ---------- Layout ---------- */
.container{
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
section{ padding-block: clamp(4rem, 8vw, 7.5rem); }
.section-tight{ padding-block: clamp(2.5rem, 5vw, 4rem); }

.stack{ display:flex; flex-direction:column; }
.grid-2{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
@media (max-width: 860px){
  .grid-2{ grid-template-columns: 1fr; }
}

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  min-height: 52px;
  padding: 0.9em 1.9em;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
  white-space: nowrap;
}
.btn-primary{
  background: var(--hydro-gradient);
  color: var(--white);
  box-shadow: 0 14px 34px -12px rgba(0,85,165,0.55);
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 18px 40px -12px rgba(0,85,165,0.65); }
.btn-ghost{
  background: transparent;
  border-color: var(--navy-20);
  color: var(--navy);
}
.btn-ghost:hover{ background: var(--navy-10); }
.btn-on-dark{
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.35);
  color: var(--white);
  backdrop-filter: blur(6px);
}
.btn-on-dark:hover{ background: rgba(255,255,255,0.16); }
.btn-block{ width: 100%; }

/* ---------- Nav ---------- */
.nav{
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--ice);
  border-bottom: 1px solid rgba(44,82,112,0.08);
}
.nav .container{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}
.nav__logo img{ height: 30px; width: auto; }
.nav__links{
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2.2rem);
}
.nav__links a{
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--bio-anchor);
  position: relative;
  padding-block: 6px;
}
.nav__links a[aria-current="page"]{ color: var(--navy); }
.nav__links a::after{
  content:"";
  position:absolute; left:0; right:0; bottom:0;
  height: 2px;
  background: var(--hydro-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-fast) var(--ease);
}
.nav__links a:hover::after{ transform: scaleX(1); }
.nav__cta{ display:flex; align-items:center; gap: 1.4rem; }
.nav__toggle{ display:none; }

@media (max-width: 900px){
  .nav__links{
    position: fixed;
    inset: 84px 0 0 0;
    z-index: 500;
    background: var(--ice);
    isolation: isolate;
    flex-direction: column;
    justify-content: flex-start;
    padding: 2.5rem var(--gutter);
    gap: 1.6rem;
    transform: translateX(100%);
    transition: transform var(--dur-med) var(--ease);
  }
  .nav__links.is-open{ transform: translateX(0); }
  .nav__links a{ font-size: 1.3rem; }
  .nav__toggle{
    display: inline-flex;
    width: 44px; height: 44px;
    align-items: center; justify-content: center;
    background: none; border: none; cursor: pointer;
  }
  .nav__toggle span, .nav__toggle span::before, .nav__toggle span::after{
    content:""; display:block; width: 22px; height: 2px; background: var(--navy);
    position: relative; transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
  }
  .nav__toggle span::before{ position:absolute; top:-7px; }
  .nav__toggle span::after{ position:absolute; top:7px; }
  .nav--open .nav__toggle span{ background: transparent; }
  .nav--open .nav__toggle span::before{ transform: translateY(7px) rotate(45deg); }
  .nav--open .nav__toggle span::after{ transform: translateY(-7px) rotate(-45deg); }
}

/* ---------- Footer ---------- */
.footer{
  background: var(--bio-anchor);
  color: rgba(255,255,255,0.82);
  padding-block: clamp(3.5rem, 6vw, 5rem) 2.5rem;
}
.footer h4{ color: var(--white); font-family: var(--font-sans); font-size: 0.95rem; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 1.1rem; }
.footer__grid{
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.14);
}
.footer__links li + li{ margin-top: 0.65rem; }
.footer__links a{ text-decoration:none; color: rgba(255,255,255,0.75); font-size: 0.95rem; }
.footer__links a:hover{ color: var(--white); }
.footer__bottom{
  display:flex; justify-content: space-between; align-items:center;
  padding-top: 1.75rem; font-size: 0.85rem; color: rgba(255,255,255,0.55); flex-wrap: wrap; gap: 1rem;
}
.footer__logo{ height: 26px; margin-bottom: 1rem; }
@media (max-width: 760px){
  .footer__grid{ grid-template-columns: 1fr 1fr; }
}

/* ---------- Free ebook ---------- */
.ebook{ background: var(--white); }
.ebook__cover{
  max-width: 340px;
  margin-inline: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lift);
}
.ebook__cover img{ display:block; width:100%; border-radius: var(--radius-md); }
.ebook__form{ margin-top: 2rem; max-width: 480px; }
.ebook__download{ margin-top: 1.5rem; }

/* ---------- Hero / Bubble field ---------- */
.hero{
  position: relative;
  overflow: hidden;
  padding-top: clamp(3.5rem, 8vw, 6rem);
  background:
    radial-gradient(60% 55% at 78% 8%, rgba(0,168,232,0.16), transparent 65%),
    linear-gradient(180deg, #EAF3F8 0%, var(--ice) 60%);
}
.hero__stage{
  position: relative;
  min-height: min(88vh, 780px);
  display: grid;
  align-items: center;
}
.hero__bubbles{
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.hero__bubbles canvas{ width: 100%; height: 100%; display:block; }
.hero__content{
  position: relative;
  z-index: 2;
  max-width: 760px;
}
.hero__content h1{ margin-top: 1.1rem; }
.hero__sub{
  margin-top: 1.6rem;
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  color: var(--bio-anchor);
  max-width: 52ch;
}
.hero__actions{ display:flex; gap: 1rem; margin-top: 2.4rem; flex-wrap: wrap; }
.hero__trust{
  margin-top: 3rem;
  display:flex; gap: clamp(1.5rem, 4vw, 3rem); flex-wrap: wrap;
}
.hero__trust div{ font-family: var(--font-sans); }
.hero__trust strong{
  display:block; font-family: var(--font-display); font-size: 1.7rem; color: var(--navy);
}
.hero__trust span{ font-size: 0.85rem; color: var(--bio-anchor); }

/* ---------- Dark science strip ---------- */
.science{
  background: var(--bio-anchor);
  color: rgba(255,255,255,0.92);
  position: relative;
  overflow: hidden;
}
.science::before{
  content:"";
  position:absolute; inset: -20% -10%;
  background: radial-gradient(45% 55% at 15% 20%, var(--cyan-glow), transparent 70%),
              radial-gradient(40% 50% at 90% 80%, rgba(0,85,165,0.4), transparent 70%);
  filter: blur(10px);
  pointer-events: none;
}
.science .eyebrow{ color: var(--hydro-end); }
.science h2{ color: var(--white); }
.science .lede{ color: rgba(255,255,255,0.78); }

.stat-row{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3.5rem;
  position: relative;
  z-index: 1;
}
.stat{
  border-top: 1px solid rgba(255,255,255,0.2);
  padding-top: 1.4rem;
}
.stat strong{
  display:block;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3rem);
  color: var(--white);
}
.stat span{ font-size: 0.9rem; color: rgba(255,255,255,0.65); }
@media (max-width: 760px){ .stat-row{ grid-template-columns: 1fr; gap: 1.75rem; } }

.icon-grid{
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.25rem;
  margin-top: 4rem;
  position: relative;
  z-index: 1;
}
.icon-grid__item{
  text-align:center;
  background: linear-gradient(160deg, rgba(255,255,255,0.14), rgba(255,255,255,0.04));
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-md);
  padding: 1.75rem 1rem 1.5rem;
  backdrop-filter: blur(6px);
  transition: transform var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.icon-grid__item:hover{ transform: translateY(-4px); background: linear-gradient(160deg, rgba(255,255,255,0.2), rgba(255,255,255,0.06)); }
.icon-grid__item img{ width: 56px; height: 56px; margin-inline:auto; margin-bottom: 1rem; }
.icon-grid__item span{ font-size: 0.88rem; color: rgba(255,255,255,0.9); font-weight: 700; }
@media (max-width: 900px){ .icon-grid{ grid-template-columns: repeat(2, 1fr); } }

/* ---------- Reveal-on-scroll ---------- */
[data-reveal]{
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}
[data-reveal].is-visible{ opacity: 1; transform: translateY(0); }
[data-reveal-children] > *{
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-med) var(--ease), transform var(--dur-med) var(--ease);
}
[data-reveal-children].is-visible > *{ opacity: 1; transform: translateY(0); }
[data-reveal-children].is-visible > *:nth-child(1){ transition-delay: 0ms; }
[data-reveal-children].is-visible > *:nth-child(2){ transition-delay: 90ms; }
[data-reveal-children].is-visible > *:nth-child(3){ transition-delay: 180ms; }
[data-reveal-children].is-visible > *:nth-child(4){ transition-delay: 270ms; }
[data-reveal-children].is-visible > *:nth-child(5){ transition-delay: 360ms; }

.stat strong[data-count]{ font-variant-numeric: tabular-nums; }

/* ---------- Product cards ---------- */
.product-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin-top: 3.5rem;
}
@media (max-width: 980px){ .product-grid{ grid-template-columns: 1fr; } }

.product-card{
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display:flex; flex-direction:column;
  transition: transform var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease);
}
.product-card:hover{ transform: translateY(-6px); box-shadow: var(--shadow-lift); }
.product-card__media{
  aspect-ratio: 4/3.4;
  overflow: hidden;
  background: linear-gradient(160deg, #eef2f4, #e3e9ec);
  display:flex; align-items:center; justify-content:center;
  padding: 1.5rem;
}
.product-card__media img{ width: 100%; height: 100%; object-fit: contain; }
.product-card__body{ padding: 1.75rem 1.75rem 2rem; display:flex; flex-direction:column; gap: 0.9rem; flex:1; }
.product-card__body h3{ margin: 0; }
.product-card__body p{ color: var(--bio-anchor); font-size: 0.98rem; flex: 1; }
.product-card__tags{ display:flex; gap: 0.5rem; flex-wrap:wrap; }
.tag{
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase;
  background: var(--navy-10); color: var(--navy); padding: 0.35em 0.75em; border-radius: 999px;
}

/* ---------- Testimonials ---------- */
.testimonial-row{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin-top: 3rem;
}
@media (max-width: 980px){ .testimonial-row{ grid-template-columns: 1fr; } }
.testimonial{
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-card);
}
.testimonial p{ font-family: var(--font-display); font-size: 1.15rem; color: var(--navy); line-height:1.5; }
.testimonial__meta{ display:flex; align-items:center; gap: 0.8rem; margin-top: 1.4rem; }
.testimonial__meta img{ width: 44px; height: 44px; border-radius: 50%; object-fit: cover; }
.testimonial__meta strong{ display:block; font-size: 0.95rem; color: var(--navy); }
.testimonial__meta span{ font-size: 0.82rem; color: var(--bio-anchor); }

/* ---------- Final CTA band ---------- */
.cta-band{
  background: var(--navy);
  background-image: radial-gradient(60% 120% at 100% 0%, rgba(0,168,232,0.35), transparent 60%);
  color: var(--white);
  text-align: center;
}
.cta-band h2{ color: var(--white); }
.cta-band .lede{ color: rgba(255,255,255,0.8); margin-inline:auto; }
.cta-band .hero__actions{ justify-content:center; }

/* ---------- Forms ---------- */
.form-card{
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 4vw, 3rem);
  box-shadow: var(--shadow-card);
}
.field{ margin-bottom: 1.4rem; }
.field label{
  display:block; font-weight: 600; font-size: 0.92rem; color: var(--navy); margin-bottom: 0.5rem;
}
.field input, .field select, .field textarea{
  width: 100%;
  min-height: 52px;
  padding: 0.85em 1em;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--navy-20);
  background: var(--ice);
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--charcoal);
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.field textarea{ min-height: 120px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus{
  outline: none; border-color: var(--hydro-end); background: var(--white);
}
.field-row{ display:grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }
@media (max-width: 620px){ .field-row{ grid-template-columns: 1fr; } }
.form-note{ font-size: 0.85rem; color: var(--bio-anchor); margin-top: 1rem; }

/* ---------- Product detail ---------- */
.product-hero__media{
  background: linear-gradient(160deg, #eef2f4, #e3e9ec);
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3.6;
  overflow: hidden;
  display:flex; align-items:center; justify-content:center;
  padding: 2rem;
  box-shadow: var(--shadow-card);
}
.product-hero__media img{ width: 100%; height: 100%; object-fit: contain; }
.product-hero__media--dark{ background: linear-gradient(160deg, var(--navy), var(--bio-anchor)); }

.feature-list{ display:flex; flex-direction:column; gap: 2rem; margin-top: 2.5rem; }
.feature-row{ display:flex; gap: 1.25rem; align-items:flex-start; }
.feature-row__icon{
  flex: none; width: 52px; height: 52px; border-radius: 50%;
  background: var(--navy-10);
  display:flex; align-items:center; justify-content:center;
  font-family: var(--font-display); font-size: 1.2rem; color: var(--navy);
}
.feature-row h4{ font-family: var(--font-sans); font-weight: 700; color: var(--navy); margin-bottom: 0.35rem; }
.feature-row p{ color: var(--charcoal); font-size: 0.98rem; }

.cross-sell{
  display:grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; margin-top: 2rem;
}
@media (max-width: 700px){ .cross-sell{ grid-template-columns: 1fr; } }
.cross-sell a{
  display:flex; align-items:center; gap: 1rem;
  background: var(--white); border-radius: var(--radius-md); padding: 1.1rem 1.3rem;
  text-decoration:none; box-shadow: var(--shadow-card);
  transition: transform var(--dur-fast) var(--ease);
}
.cross-sell a:hover{ transform: translateY(-3px); }
.cross-sell img{ width: 56px; height: 56px; object-fit: contain; flex: none; }
.cross-sell strong{ display:block; color: var(--navy); font-size: 1rem; }
.cross-sell span{ color: var(--bio-anchor); font-size: 0.85rem; }

.checklist{
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.checklist li{
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  font-size: 1.02rem;
  color: var(--charcoal);
  line-height: 1.45;
}
.checklist .check{
  flex: none;
  width: 24px; height: 24px;
  margin-top: 0.2rem;
  border-radius: 50%;
  background: var(--hydro-gradient);
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}

.placeholder-note{
  display:inline-flex; align-items:center; gap: 0.5rem;
  background: rgba(0,168,232,0.12); color: var(--hydro-start);
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.03em;
  padding: 0.4em 0.85em; border-radius: 999px; margin-top: 1rem;
}

/* ---------- Utility ---------- */
.text-center{ text-align:center; }
.mx-auto{ margin-inline:auto; }
.mt-1{ margin-top: 1rem; } .mt-2{ margin-top: 2rem; } .mt-3{ margin-top: 3rem; }
.section-head{ max-width: 640px; }
.section-head.text-center{ margin-inline:auto; }
.divider{ height: 1px; background: var(--navy-20); border:none; margin-block: 3rem; }
.pill-list{ display:flex; gap: 0.6rem; flex-wrap:wrap; }
.skip-link{
  position:absolute; left:-9999px; top:0; background: var(--navy); color:var(--white);
  padding: 1rem 1.4rem; z-index: 1000; border-radius: 0 0 8px 0;
}
.skip-link:focus{ left:0; }