/* ============================================================
   DUSTON GEL — warming joint & muscle gel
   Design language: "massaged warmth" — warm orange + rust +
   charcoal + cream. Focused centered stack hero on a warm clay
   gradient, tactile inset cards, cozy heat-glow (glow, not flames).
   Serif headings for warmth, rounded comfortable type.
   Archetype: hero-stack (layout in archetypes.css).
   ============================================================ */
:root{
  --ink:#2e231b; --ink2:#4c3d30; --muted:#6c5c4d;
  --accent:#c4572e; --accent-d:#a34422; --accent-l:#f7ddc8;
  --rust:#8a3f20; --charcoal:#3a3127; --cream:#f5e9d8;
  --clay:#d96a3d;
  --bg:#f2e6d3; --card:#fffaf1; --line:#e2d2b6;
  --grad:linear-gradient(145deg,#e07b45 0%,#c4572e 48%,#a34422 100%);
  --glow:radial-gradient(circle at 50% 58%,rgba(217,106,61,.34),rgba(217,106,61,.08) 58%,transparent 72%);
  --font:'Segoe UI',system-ui,-apple-system,sans-serif;
  --font-head:Georgia,'Palatino Linotype','Times New Roman',serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{max-width:100%;overflow-x:hidden}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.68;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--accent-d);text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 22px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:var(--card);border-bottom:2px solid var(--clay)}
.header-in{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{font-family:var(--font-head);font-weight:700;font-size:1.35rem;letter-spacing:-.01em;color:var(--rust)}
.brand b{color:var(--accent)}
.nav{display:flex;gap:28px;align-items:center}
.nav a{color:var(--ink2);font-weight:600;font-size:.95rem;transition:color .15s}
.nav a:hover{color:var(--accent)}
.cta-btn{display:inline-block;background:var(--grad);color:#fff;font-weight:800;padding:13px 26px;border-radius:999px;font-size:.96rem;transition:transform .15s,box-shadow .15s,filter .15s;box-shadow:0 9px 22px rgba(180,74,30,.35);line-height:1}
.cta-btn:hover{transform:translateY(-2px);filter:brightness(1.07);color:#fff;box-shadow:0 13px 28px rgba(180,74,30,.42)}
.cta-btn:focus-visible,.nav a:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}

/* ---------- Hero (focused centered stack, warm clay) ---------- */
.hero{background:
  radial-gradient(circle at 50% 30%,rgba(224,123,69,.22),transparent 52%),
  linear-gradient(180deg,#f6dfc4 0%,#e8b98f 58%,var(--bg) 100%);
  border-bottom:1px solid var(--line)}
.hero-stack h1{font-family:var(--font-head);font-weight:700;letter-spacing:-.015em;color:var(--ink)}
.hero-stack h1 span{color:var(--rust)}
.eyebrow{display:inline-block;background:rgba(255,250,241,.85);border:1px solid var(--clay);color:var(--rust);font-weight:800;font-size:.74rem;text-transform:uppercase;letter-spacing:.13em;padding:6px 16px;border-radius:999px;margin-bottom:16px}
.hero-copy .lead{color:var(--ink2);font-size:1.12rem;max-width:52ch}
/* heat glow behind the product */
.hero-stack .hero-visual::before{content:"";position:absolute;inset:0;margin:auto;width:min(340px,64vw);aspect-ratio:1;border-radius:50%;background:var(--glow);z-index:0}
.hero-stack .hero-visual .hero-prod{position:relative;z-index:1;border-radius:26px;filter:drop-shadow(0 26px 42px rgba(140,58,24,.32))}
/* tactile chips: warm clay chips, rounded */
.quick-chips li{background:var(--card);border:1px solid var(--clay);color:var(--rust);padding:9px 18px;border-radius:999px;font-weight:800;font-size:.86rem;box-shadow:0 5px 14px rgba(138,63,32,.16),inset 0 1px 0 rgba(255,255,255,.7)}
.float-card{background:var(--card);border:1px solid var(--clay);border-radius:999px;color:var(--rust);font-weight:800;box-shadow:0 12px 26px rgba(58,49,39,.16);padding:12px 20px}

/* ---------- Sections ---------- */
section{padding:74px 0}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-head .kicker{color:var(--accent);font-weight:800;text-transform:uppercase;letter-spacing:.12em;font-size:.74rem;margin-bottom:10px}
.sec-head h2{font-family:var(--font-head);font-size:clamp(1.8rem,3.4vw,2.4rem);line-height:1.22;letter-spacing:-.01em;font-weight:700;color:var(--ink)}
.sec-head p{color:var(--ink2);margin-top:14px;font-size:1.04rem}

/* Benefits — tactile inset cards (warm clay tint) */
.ben-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ben-card{background:linear-gradient(145deg,var(--card),#fdf3e2);border:1px solid var(--line);border-radius:24px;padding:30px;box-shadow:inset 0 1px 0 rgba(255,255,255,.8),0 14px 26px rgba(122,84,44,.12);transition:transform .2s,box-shadow .2s}
.ben-card:hover{transform:translateY(-5px);box-shadow:inset 0 1px 0 rgba(255,255,255,.8),0 20px 36px rgba(122,84,44,.2)}
.ben-card .ic{width:54px;height:54px;border-radius:18px;background:linear-gradient(145deg,var(--accent-l),#f7cfae);display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:var(--accent-d)}
.ben-card h3{font-size:1.14rem;font-weight:800;margin-bottom:8px}
.ben-card p{color:var(--muted);font-size:.95rem}

/* How — cozy numbered warmth steps */
.how{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.how-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.step{position:relative;padding-left:60px}
.step .num{position:absolute;left:0;top:0;width:42px;height:42px;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;font-size:.95rem;display:flex;align-items:center;justify-content:center;box-shadow:0 7px 14px rgba(138,63,32,.28)}
.step h3{font-size:1.06rem;font-weight:800;margin-bottom:6px}
.step p{color:var(--muted);font-size:.93rem}

/* Ingredients */
.ing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ing-card{background:var(--card);border-radius:20px;padding:26px;border:1px solid var(--line);box-shadow:inset 4px 0 0 var(--clay)}
.ing-card:hover{box-shadow:inset 4px 0 0 var(--accent)}
.ing-card h3{font-size:1.02rem;font-weight:800;margin-bottom:6px;color:var(--rust)}
.ing-card p{color:var(--muted);font-size:.9rem}

/* About split */
.split{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.split .sec-head{margin-bottom:0}
.split h2{font-family:var(--font-head);font-size:clamp(1.7rem,3vw,2.2rem);font-weight:700;color:var(--ink)}
.split .lead{color:var(--ink2);margin:16px 0;max-width:52ch}
.checklist{list-style:none;margin:20px 0}
.checklist li{display:flex;gap:10px;align-items:flex-start;margin-bottom:14px;font-weight:600;color:var(--ink2)}
.checklist svg{flex:none;width:20px;height:20px;margin-top:3px;color:var(--accent)}

/* Quote band — warm clay */
.quote{background:linear-gradient(120deg,#a34422,#d96a3d 60%,#e07b45);color:#fff5ea}
.quote .wrap{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center}
.quote h2{font-family:var(--font-head);font-size:1.8rem;font-weight:700}
.quote p{color:#f7e0cd;margin-top:12px;max-width:54ch}
.quote .cta-btn{background:var(--charcoal);color:#fff0df;box-shadow:0 8px 20px rgba(0,0,0,.24)}

/* FAQ */
.faq-box{max-width:800px;margin:0 auto}
details{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:8px;margin-bottom:12px}
summary{cursor:pointer;font-weight:800;padding:16px 18px;list-style:none;display:flex;justify-content:space-between;align-items:center}
summary::after{content:"+";font-size:1.3rem;color:var(--accent);font-weight:800}
details[open] summary::after{content:"–"}
details .a{padding:0 18px 18px;color:var(--ink2);font-size:.95rem}

/* CTA band */
.cta-band{background:radial-gradient(circle at 20% 20%,rgba(224,123,69,.3),transparent 50%),linear-gradient(135deg,#2c231a,#3a3127);color:#fff3e6}
.cta-band h2{font-family:var(--font-head);font-size:clamp(1.9rem,3.6vw,2.6rem);font-weight:700;max-width:22ch}
.cta-band p{color:#dccbb4;margin:16px 0 26px;max-width:54ch;font-size:1.05rem}
.cta-band .cta-btn{font-size:1.1rem;padding:16px 34px;background:var(--grad);color:#fff}

/* ---------- Footer ---------- */
.site-footer{background:#241c14;color:#d4c4ae;padding:52px 0 30px;font-size:.9rem}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px;margin-bottom:34px;align-items:start}
.site-footer h4{color:#fff;font-size:.95rem;margin-bottom:14px;font-weight:700}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:8px}
.site-footer a{color:#d4c4ae}
.site-footer a:hover{color:#fff}
.site-footer .ft-brand p{max-width:38ch;opacity:.85}
.site-footer .ft-buy{display:inline-block;background:var(--grad);color:#fff !important;font-weight:800;padding:9px 18px;border-radius:999px;margin-bottom:6px;box-shadow:0 4px 12px rgba(0,0,0,.28)}
.site-footer .ft-buy:hover{filter:brightness(1.08);color:#fff}
.lang-block{margin-bottom:30px}
.lang-label{color:#fff;font-weight:700;font-size:.9rem;margin-bottom:12px}
.lang-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.lang-link{display:inline-flex;align-items:center;gap:7px;background:#3a2d1e;border:1px solid #5c4730;border-radius:999px;padding:7px 13px;color:#e2d2bd;font-size:.85rem;font-weight:600;min-height:62px}
.lang-link:hover{background:#543f28;color:#fff}
.lang-link.active{background:var(--grad);border-color:transparent;color:#fff}
.lang-link img{display:inline-block;vertical-align:middle;margin-right:6px;border-radius:2px;flex:none;box-shadow:0 0 0 1px rgba(0,0,0,.08)}
.footer-bot{border-top:1px solid #4a3925;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .ben-grid,.how-grid,.ing-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:14px}
}
@media (max-width:720px){
  .site-header{position:static}
  .header-in{height:auto;flex-wrap:wrap;flex-direction:column;gap:10px;padding:12px 14px}
  .nav{flex-wrap:wrap;justify-content:center;row-gap:8px}
  .ben-grid,.how-grid,.ing-grid{grid-template-columns:1fr}
  .quote .wrap{grid-template-columns:1fr;text-align:center}
  .quote .cta-btn{justify-self:center}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer .lang-list{grid-template-columns:1fr 1fr;gap:8px}
  .cta-btn{min-height:52px;padding:0 22px;display:inline-flex;align-items:center;justify-content:center}
}
@media (max-width:640px){
  .site-header .wrap{flex-wrap:wrap;gap:10px;padding:14px}
  .nav .cta-btn{order:9;width:100%;justify-content:center}
  .sec-head h2{font-size:1.6rem}
  .hero-stack h1,.hero-stack h1 span{font-size:1.9rem}
  .hero-copy .lead{font-size:1.02rem}
}
@media (max-width:460px){
  .lang-link{min-height:54px;font-size:.8rem;padding:6px 10px}
  .footer-grid>div{padding:0}
  .footer-bot{flex-direction:column;align-items:center;text-align:center}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}