/* ============================================================
   DNA WATER — functional hydration — stylesheet
   Bright product footage drawn to <canvas>; captions sit over a
   berry-tinted bottom scrim for contrast. No image URLs here.
   ============================================================ */

:root{
  --berry:#e11d5b;
  --berry-deep:#8a0b34;
  --pink:#ff5c8a;
  --cream:#fff6f4;
  --ink:#2a1016;
  --line:rgba(255,255,255,.22);
  --head:'Poppins', 'Segoe UI', sans-serif;
  --body:'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --wrap:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--body);background:#f5dbe1;color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:clip}
img,canvas{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 34px}

/* ---------- Nav ---------- */
header{position:fixed;top:0;left:0;right:0;z-index:50}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;padding:0 34px;
  background:rgba(255,246,244,.72);backdrop-filter:blur(14px);border-bottom:1px solid rgba(138,11,52,.10)}
.logo{font-family:var(--head);font-weight:700;letter-spacing:.16em;text-transform:uppercase;font-size:1.05rem;color:var(--ink)}
.logo b{color:var(--berry)}
.nav-links{display:flex;align-items:center;gap:20px}
.nav-links a{font-family:var(--head);font-weight:500;font-size:.78rem;letter-spacing:.03em;color:#6d4650;
  position:relative;padding:6px 0;transition:color .25s;white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--berry);transition:right .3s ease}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--berry)}
.nav-links a.active::after{right:0}
.btn{display:inline-block;font-family:var(--head);font-weight:600;font-size:.8rem;letter-spacing:.03em;
  padding:11px 24px;border-radius:100px;border:1.5px solid var(--berry);color:var(--berry);background:transparent;
  cursor:pointer;transition:all .25s ease}
.btn:hover{background:var(--berry);color:#fff}
.btn-solid{background:var(--berry);color:#fff}
.btn-solid:hover{background:var(--berry-deep);border-color:var(--berry-deep)}
.nav .btn{padding:9px 22px}
.menu-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.menu-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.3s}

/* ---------- Scrolly stage ---------- */
.scrolly{position:relative;height:460vh}
.sticky{position:sticky;top:0;height:100vh;overflow:hidden;background:#f3c9d2}
.stage-fallback{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.stage-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.veil{position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(to top, rgba(45,8,22,.84) 0%, rgba(45,8,22,.34) 30%, rgba(45,8,22,0) 56%),
    linear-gradient(to bottom, rgba(45,8,22,.30) 0%, rgba(45,8,22,0) 15%);
}
/* invisible scroll anchors — nav jumps land the scrub on each phase */
.anchor{position:absolute;left:0;width:1px;height:1px;pointer-events:none}

/* ---------- Captions ---------- */
.cap{position:absolute;left:0;right:0;bottom:0;z-index:3;padding-bottom:13vh;color:#fff}
.cap .accent{width:54px;height:4px;border-radius:4px;background:linear-gradient(90deg,var(--berry),var(--pink));margin-bottom:22px}
.eyebrow{font-family:var(--head);font-weight:600;letter-spacing:.28em;text-transform:uppercase;font-size:.78rem;color:var(--pink);display:block;margin-bottom:.8em}
.cap h2{font-family:var(--head);font-weight:700;line-height:1.02;letter-spacing:-.015em;
  font-size:clamp(2.6rem,7vw,5.4rem);margin-bottom:.32em;text-shadow:0 2px 30px rgba(0,0,0,.35)}
.cap h2 .hl{color:var(--pink)}
.cap p{font-size:clamp(1rem,1.35vw,1.2rem);color:rgba(255,255,255,.9);max-width:54ch;font-weight:300}
.cap .stat{margin-top:22px;font-family:var(--head);letter-spacing:.06em;font-size:.82rem;color:rgba(255,255,255,.92)}
.cap .stat b{color:var(--pink);font-weight:600}
.cap .cta{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}

/* JS-driven reveal */
.js .cap{opacity:0;transform:translateY(30px);transition:opacity .9s ease, transform .9s ease}
.js .cap.on{opacity:1;transform:none}
html:not(.js) .cap ~ .cap{display:none}

/* progress rail */
.rail{position:absolute;right:30px;top:50%;transform:translateY(-50%);z-index:4;width:3px;height:150px;background:rgba(255,255,255,.3);border-radius:3px;overflow:hidden}
.rail i{position:absolute;left:0;top:0;width:100%;height:0%;background:linear-gradient(var(--pink),var(--berry));border-radius:3px}
html:not(.js) .rail{display:none}

.scroll-hint{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);z-index:4;
  font-family:var(--head);font-size:.7rem;letter-spacing:.3em;text-transform:uppercase;color:rgba(255,255,255,.85);
  display:flex;flex-direction:column;align-items:center;gap:9px;transition:opacity .5s ease}
.scroll-hint i{width:1px;height:42px;background:linear-gradient(#fff,transparent);animation:pulse 2s ease infinite}
html:not(.js) .scroll-hint{display:none}
@keyframes pulse{0%,100%{opacity:.3;transform:scaleY(.6)}50%{opacity:1;transform:scaleY(1)}}

/* ---------- Footer ---------- */
footer{background:var(--berry-deep);color:var(--cream);padding:66px 0 44px;text-align:center}
footer .big{font-family:var(--head);font-weight:700;letter-spacing:-.01em;font-size:clamp(1.9rem,5vw,3.4rem)}
footer .big span{color:var(--pink)}
footer .flavors{margin-top:14px;font-family:var(--head);font-weight:500;letter-spacing:.04em;color:rgba(255,255,255,.75);font-size:.92rem}
footer .foot-cta{margin-top:30px}
footer .fine{margin-top:34px;font-size:.76rem;color:rgba(255,255,255,.5);letter-spacing:.03em}

/* ---------- Responsive ---------- */
@media (max-width:1000px){
  .nav-links{position:fixed;inset:72px 0 auto 0;flex-direction:column;gap:0;align-items:stretch;
    background:rgba(255,246,244,.97);backdrop-filter:blur(16px);padding:14px 34px 24px;
    border-bottom:1px solid rgba(138,11,52,.12);transform:translateY(-130%);transition:transform .4s ease}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:14px 0;border-bottom:1px solid rgba(138,11,52,.10)}
  .nav-links .btn{margin-top:14px;text-align:center}
  .menu-toggle{display:block}
  .rail{display:none}
  .cap p{max-width:none}
  .nav{padding:0 20px}
  .wrap{padding:0 20px}
}

/* ============================================================
   Content sections below the scroll hero (light theme)
   ============================================================ */
.section{padding:clamp(64px,9vw,112px) 0;position:relative}
.section.cream{background:var(--cream)}
.section.plain{background:#ffffff}
.wrap-narrow{max-width:760px}
#nutrition,#benefits,#flavors,#reviews,#pricing,#faq{scroll-margin-top:86px}

/* section reveal (content below hero) */
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease, transform .8s ease}
.js .reveal.in{opacity:1;transform:none}

/* section heads */
.lead-wrap{max-width:660px;margin:0 auto clamp(40px,6vw,64px);text-align:center}
.eyebrow-d{font-family:var(--head);font-weight:600;letter-spacing:.24em;text-transform:uppercase;font-size:.75rem;color:var(--berry);display:block;margin-bottom:.9em}
.sec-h2{font-family:var(--head);font-weight:700;line-height:1.05;letter-spacing:-.02em;color:var(--ink);font-size:clamp(2rem,4.4vw,3.2rem)}
.sec-h2 .hl-d{color:var(--berry)}
.lead{margin-top:16px;color:#6d4650;font-weight:300;font-size:clamp(1rem,1.3vw,1.12rem)}

/* shared card look */
.nutri-card,.benefit-card,.flavor-card,.review-card,.price-card,.faq{
  background:#fff;border:1px solid rgba(138,11,52,.10);border-radius:18px;
  box-shadow:0 12px 32px -20px rgba(138,11,52,.4)}
.section.plain .nutri-card,.section.plain .benefit-card,.section.plain .review-card,
.section.plain .price-card,.section.plain .faq{background:var(--cream)}
.nutri-card,.benefit-card,.flavor-card,.review-card,.price-card{transition:transform .3s ease, box-shadow .3s ease}
.nutri-card:hover,.benefit-card:hover,.flavor-card:hover,.review-card:hover,.price-card:hover{
  transform:translateY(-5px);box-shadow:0 24px 46px -24px rgba(138,11,52,.5)}

/* nutrition */
.nutri-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.nutri-card{padding:34px 26px;text-align:center}
.nutri-card .ico{display:inline-flex;width:54px;height:54px;align-items:center;justify-content:center;border-radius:50%;
  background:linear-gradient(135deg,rgba(225,29,91,.12),rgba(255,92,138,.14));color:var(--berry);margin-bottom:16px}
.nutri-card .ico svg{width:26px;height:26px}
.nutri-card .num{display:block;font-family:var(--head);font-weight:700;font-size:2.2rem;line-height:1;color:var(--ink)}
.nutri-card .num small{font-size:.5em;font-weight:600;color:#6d4650}
.nutri-card .unit{display:block;font-family:var(--head);font-weight:500;font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;color:var(--berry);margin-top:8px}
.nutri-card .note{margin-top:12px;font-size:.9rem;color:#6d4650;font-weight:300}
.nutri-fine{text-align:center;margin-top:30px;font-size:.78rem;color:#9a7d84}

/* benefits */
.benefit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.benefit-card{padding:34px 26px}
.benefit-card .b-ico{display:inline-flex;width:54px;height:54px;align-items:center;justify-content:center;border-radius:14px;
  background:linear-gradient(135deg,var(--berry),var(--pink));color:#fff;margin-bottom:18px}
.benefit-card .b-ico svg{width:26px;height:26px}
.benefit-card h3{font-family:var(--head);font-weight:600;font-size:1.15rem;color:var(--ink);margin-bottom:8px}
.benefit-card p{font-size:.92rem;color:#6d4650;font-weight:300}

/* flavors */
.flavor-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.flavor-card{padding:26px;display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.flavor-card .chip{width:100%;height:104px;border-radius:12px;background:linear-gradient(135deg,var(--c1,#ff5c8a),var(--c2,#e11d5b))}
.flavor-tag{font-family:var(--head);font-weight:600;font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--berry)}
.flavor-tag.muted{color:#9a7d84}
.flavor-card h3{font-family:var(--head);font-weight:600;font-size:1.3rem;color:var(--ink)}
.flavor-card p{font-size:.92rem;color:#6d4650;font-weight:300;flex:1}
.flavor-card .btn{align-self:stretch;text-align:center}
.flavor-card.featured{border-color:rgba(225,29,91,.42);box-shadow:0 20px 44px -22px rgba(225,29,91,.55)}
.btn.is-disabled{opacity:.5;pointer-events:none;border-style:dashed}

/* reviews */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review-card{padding:30px 28px}
.review-card .stars{display:flex;gap:3px;color:#f5b53f;margin-bottom:16px}
.review-card .stars svg{width:18px;height:18px}
.review-card .quote{font-size:1rem;color:var(--ink);font-weight:400;line-height:1.55}
.review-card .reviewer{display:flex;align-items:center;gap:12px;margin-top:20px}
.review-card .avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:var(--head);font-weight:600;color:#fff;background:linear-gradient(135deg,var(--berry),var(--pink))}
.review-card .reviewer b{display:block;font-size:.92rem;color:var(--ink)}
.review-card .reviewer small{color:#9a7d84;font-size:.78rem}

/* pricing */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.price-card{padding:38px 30px;display:flex;flex-direction:column;position:relative}
.price-card h3{font-family:var(--head);font-weight:600;font-size:1.15rem;color:var(--ink)}
.price-card .price{display:flex;align-items:baseline;gap:6px;margin:14px 0 4px}
.price-card .amt{font-family:var(--head);font-weight:700;font-size:2.6rem;color:var(--berry);line-height:1}
.price-card .per{font-size:.9rem;color:#9a7d84}
.price-card .price-sub{font-size:.9rem;color:#6d4650;font-weight:300;min-height:2.8em}
.price-card .price-sub b{color:var(--ink);font-weight:600}
.price-card .price-list{list-style:none;margin:18px 0 26px;display:flex;flex-direction:column;gap:11px}
.price-card .price-list li{position:relative;padding-left:28px;font-size:.92rem;color:#4a2a30}
.price-card .price-list li::before{content:"";position:absolute;left:2px;top:.28em;width:12px;height:7px;
  border-left:2px solid var(--berry);border-bottom:2px solid var(--berry);transform:rotate(-45deg)}
.price-card .btn{margin-top:auto;text-align:center}
.price-card.featured{border-color:var(--berry);box-shadow:0 24px 50px -22px rgba(225,29,91,.6);transform:translateY(-8px)}
.price-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--berry);color:#fff;
  font-family:var(--head);font-weight:600;font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;padding:6px 16px;border-radius:100px;white-space:nowrap}

/* faq */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq{overflow:hidden}
.faq summary{list-style:none;cursor:pointer;padding:20px 24px;font-family:var(--head);font-weight:500;font-size:1.02rem;color:var(--ink);
  display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq-mark{position:relative;width:16px;height:16px;flex:none}
.faq-mark::before,.faq-mark::after{content:"";position:absolute;background:var(--berry);border-radius:2px;transition:transform .3s ease}
.faq-mark::before{top:7px;left:0;width:16px;height:2px}
.faq-mark::after{left:7px;top:0;width:2px;height:16px}
.faq[open] .faq-mark::after{transform:scaleY(0)}
.faq-body{padding:0 24px 22px;color:#6d4650;font-weight:300;font-size:.95rem}
.faq-body p{max-width:62ch}
.faq-body em{color:var(--berry);font-style:italic}

/* back-to-top */
.to-top{position:fixed;right:24px;bottom:24px;z-index:70;width:50px;height:50px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  background:var(--berry);color:#fff;border:0;box-shadow:0 12px 28px -8px rgba(225,29,91,.65);
  opacity:0;transform:translateY(16px) scale(.9);pointer-events:none;
  transition:opacity .3s ease, transform .3s ease, background .25s ease}
.to-top svg{width:22px;height:22px}
.to-top:hover{background:var(--berry-deep)}
.to-top.show{opacity:1;transform:none;pointer-events:auto}

/* ---------- Content responsive ---------- */
@media (max-width:900px){
  .benefit-grid{grid-template-columns:repeat(2,1fr)}
  .nutri-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:720px){
  .flavor-grid,.review-grid,.price-grid{grid-template-columns:1fr}
  .price-card.featured{transform:none}
}
@media (max-width:560px){
  .nutri-grid,.benefit-grid{grid-template-columns:1fr}
  .to-top{right:16px;bottom:16px;width:44px;height:44px}
  .to-top svg{width:20px;height:20px}
}