/* ============================================================
   CARDIOX — steady-heart premium theme
   Palette: deep crimson + soft ivory + warm slate
   Type: high-contrast serif display (Cardo/Georgia) on ivory
   Motif: ECG/pulse line, softly rounded cards, generous whitespace.
   Distinct from: orange/teal athletic, navy/sage clinical,
   cream/amber apothecary, emerald/charcoal luxury.
   Mobile-first (320px), no horizontal scroll.
   ============================================================ */

:root{
  --crimson:#9c1d28;
  --crimson-2:#c2363f;
  --crimson-deep:#6f1220;
  --ink:#31353c;           /* warm slate */
  --ink-soft:#5b616b;
  --ivory:#faf6f1;         /* soft ivory bg */
  --ivory-2:#f3ece4;
  --ivory-3:#f7f0e9;
  --line:#e9ddd2;
  --white:#ffffff;
  --serif:"Georgia","Times New Roman",serif;
  --sans:"Trebuchet MS","Segoe UI",system-ui,Arial,sans-serif;
  --radius:18px;
  --shadow:0 14px 40px -22px rgba(108,29,36,.28);
  --maxw:1100px;
  --pulse-grad:linear-gradient(90deg,var(--crimson-2),var(--crimson));
}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--ivory);color:var(--ink);
  font-family:var(--sans);line-height:1.7;font-size:1rem;
  overflow-x:hidden;
}
img,svg{max-width:100%;height:auto}
a{color:var(--crimson)}
h1,h2,h3,h4{font-family:var(--serif);line-height:1.18;font-weight:700;color:var(--crimson-deep);margin:0 0 .5rem}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 1.15rem}
section{scroll-margin-top:70px}
.eyebrow,.kicker{letter-spacing:.14em;text-transform:uppercase;font-weight:700;font-size:.72rem;color:var(--crimson);font-family:var(--sans)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(250,246,241,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header-in{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:64px}
.brand{font-family:var(--serif);font-weight:700;font-size:1.4rem;color:var(--crimson-deep);letter-spacing:.02em;display:flex;align-items:center;gap:.5rem}
.brand::before{content:"";width:12px;height:12px;border-radius:50%;background:var(--pulse-grad);box-shadow:0 0 0 4px rgba(194,54,63,.15)}
.nav{display:flex;align-items:center;gap:.4rem}
.nav a{color:var(--ink-soft);text-decoration:none;font-size:.92rem;font-weight:600;padding:.5rem .7rem;border-radius:10px;transition:.18s}
.nav a:hover{color:var(--crimson);background:var(--ivory-3)}
.nav a.cta-btn{margin-left:.3rem}

/* ---------- buttons ---------- */
.cta-btn{
  display:inline-block;background:var(--pulse-grad);color:#fff!important;
  text-decoration:none!important;font-weight:700;font-size:.98rem;
  padding:.78rem 1.5rem;border-radius:999px;border:none;cursor:pointer;
  box-shadow:0 12px 26px -14px rgba(156,29,40,.65);transition:.18s;
  text-align:center;font-family:var(--sans);
}
.cta-btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(156,29,40,.75)}
.cta-btn:active{transform:translateY(0)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:
  radial-gradient(1200px 520px at 115% -20%,rgba(194,54,63,.12),transparent 60%),
  radial-gradient(900px 480px at -10% 115%,rgba(156,29,40,.10),transparent 55%),var(--ivory)}
.hero-in{display:grid;grid-template-columns:1fr;gap:2rem;padding-top:3rem;padding-bottom:3rem;align-items:center}
.hero-copy{max-width:100%}
.eyebrow{display:inline-block;margin-bottom:.9rem;padding:.35rem .8rem;border:1px solid rgba(156,29,40,.28);border-radius:999px;background:rgba(194,54,63,.07)}
.hero h1{font-size:2.15rem;margin-bottom:1rem}
.hero .lead{font-size:1.1rem;color:var(--ink-soft);margin:0 0 1.1rem}
.hot{display:inline-block;color:var(--crimson);font-weight:700;background:var(--ivory-2);border:1px dashed var(--crimson-2);padding:.55rem .95rem;border-radius:12px;margin:0 0 1.4rem;font-size:.95rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-bottom:1.4rem}
.trust-row{display:flex;flex-wrap:wrap;gap:.45rem;list-style:none;margin:0;padding:0}
.trust-row span{display:inline-flex;align-items:center;gap:.4rem;background:var(--white);border:1px solid var(--line);border-radius:999px;padding:.42rem .85rem;font-size:.83rem;font-weight:600;color:var(--ink)}
.trust-row svg{width:14px;height:14px;stroke:var(--crimson)}
.hero-visual{display:flex;justify-content:center}
.hero-visual svg{width:min(300px,80vw);height:auto}

/* ---------- section shell ---------- */
.sec-head{max-width:760px;margin-bottom:2rem}
.sec-head h2{font-size:1.75rem;margin:.35rem 0 .5rem}
.sec-head p{margin:0;color:var(--ink-soft)}

/* ---------- benefits ---------- */
section#benefits,section#ingredients{background:var(--ivory)}
.ben-grid{display:grid;grid-template-columns:1fr;gap:1.1rem}
.ben-card{background:var(--white);border:1px solid var(--line);border-top:4px solid var(--crimson);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow);transition:.18s}
.ben-card:hover{transform:translateY(-4px)}
.ben-card .ic{width:46px;height:46px;border-radius:14px;background:var(--ivory-3);display:flex;align-items:center;justify-content:center;margin-bottom:.9rem}
.ben-card .ic svg{width:22px;height:22px;stroke:var(--crimson)}
.ben-card h3{font-size:1.15rem;margin-bottom:.4rem}
.ben-card p{margin:0;color:var(--ink-soft);font-size:.95rem}

/* ---------- how ---------- */
section#how{background:var(--ivory-2);border-block:1px solid var(--line)}
.how-grid{display:grid;grid-template-columns:1fr;gap:1.1rem}
.step{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;display:flex;flex-direction:column;gap:.3rem;box-shadow:var(--shadow)}
.step .num{width:40px;height:40px;border-radius:50%;background:var(--pulse-grad);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:1.05rem;margin-bottom:.35rem}
.step h3{font-size:1.1rem;margin-bottom:.3rem}
.step p{margin:0;color:var(--ink-soft);font-size:.95rem}

/* ---------- ingredients ---------- */
.ing-grid{display:grid;grid-template-columns:1fr;gap:1.1rem}
.ing-card{background:var(--ivory-3);border:1px solid var(--line);border-left:4px solid var(--crimson);border-radius:14px;padding:1.35rem 1.4rem}
.ing-card h3{font-size:1.12rem;margin-bottom:.35rem}
.ing-card p{margin:0;color:var(--ink-soft);font-size:.95rem}

/* ---------- about split ---------- */
section#about{background:var(--white);border-block:1px solid var(--line)}
.split{display:grid;grid-template-columns:1fr;gap:1.5rem;align-items:center}
.checklist{list-style:none;margin:0 0 1.4rem;padding:0;display:grid;gap:.8rem}
.checklist li{display:flex;align-items:center;gap:.6rem;color:var(--ink);font-weight:600;font-size:.98rem}
.checklist svg{width:20px;height:20px;stroke:var(--crimson);flex:none}
.split .cta-btn{margin-top:.4rem}

/* ---------- quote ---------- */
.quote{background:linear-gradient(135deg,var(--crimson-deep),var(--crimson));color:#fdf6f2}
.quote .wrap{text-align:center;padding:3rem 1.15rem}
.quote h2{color:#fff;font-size:1.7rem;max-width:760px;margin:0 auto .8rem}
.quote p{max-width:680px;margin:0 auto 1.4rem;color:#f3ded8;font-size:1.05rem}
.quote .cta-btn{background:#fff;color:var(--crimson-deep)!important;box-shadow:none}

/* ---------- faq ---------- */
section#faq{background:var(--ivory)}
.faq-box{max-width:820px;display:grid;gap:.8rem}
.faq-box details{background:var(--white);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.faq-box summary{cursor:pointer;padding:1.1rem 1.25rem;font-weight:700;color:var(--crimson-deep);font-family:var(--serif);font-size:1.05rem;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem;position:relative}
.faq-box summary::-webkit-details-marker{display:none}
.faq-box summary::after{content:"+";font-family:var(--sans);font-size:1.5rem;color:var(--crimson);line-height:1;transition:.18s}
.faq-box details[open] summary::after{content:"−";color:var(--crimson-deep)}
.faq-box .a{padding:0 1.25rem 1.15rem;color:var(--ink-soft);font-size:.97rem}

/* ---------- cta band ---------- */
.cta-band{background:var(--ivory-2);border-top:1px solid var(--line);text-align:center}
.cta-band .wrap{padding:3rem 1.15rem}
.cta-band h2{font-size:1.7rem;max-width:700px;margin:0 auto .6rem}
.cta-band p{color:var(--ink-soft);max-width:620px;margin:0 auto 1.5rem;font-size:1.03rem}

/* ---------- footer ---------- */
.site-footer{background:var(--crimson-deep);color:#f5ddd7;font-size:.92rem}
.site-footer .wrap{padding:2.4rem 1.15rem 1.6rem}
.lang-block{display:flex;flex-direction:column;gap:.7rem;margin-bottom:1.8rem;padding-bottom:1.2rem;border-bottom:1px solid rgba(255,255,255,.16)}
.lang-label{font-weight:700;letter-spacing:.1em;text-transform:uppercase;font-size:.74rem;color:#f0c6c0}
.lang-list{display:flex;flex-wrap:wrap;gap:.5rem}
.lang-link{display:inline-flex;align-items:center;gap:.4rem;color:#f5ddd7;text-decoration:none;padding:.42rem .8rem;border-radius:999px;border:1px solid rgba(255,255,255,.24);transition:.18s}
.lang-link:hover{background:rgba(255,255,255,.1)}
.lang-link.active{background:#fff;color:var(--crimson-deep);font-weight:700;border-color:#fff}
.footer-grid{display:grid;grid-template-columns:1fr;gap:1.6rem}
.footer-grid h4{color:#fff;font-size:1.02rem;margin-bottom:.6rem}
.footer-grid p{margin:0;color:#ecc2bb}
.footer-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:.45rem}
.footer-grid a{color:#f5ddd7;text-decoration:none}
.footer-grid a:hover{color:#fff;text-decoration:underline}
.footer-bot{margin-top:1.6rem;padding-top:1rem;border-top:1px solid rgba(255,255,255,.16);font-size:.82rem;color:#ecc2bb}

/* ---------- sub pages / utility ---------- */
.simple{background:var(--white);min-height:60vh}
.simple .wrap{max-width:820px;padding-top:2.6rem;padding-bottom:3.5rem}
.simple .sec-head h1{font-size:1.9rem}
.simple p{color:var(--ink-soft);margin:0 0 1.2rem}
.cta-wrapper{text-align:center;margin-top:1.8rem}
.tip{margin-top:1.4rem;background:var(--ivory-3);border-left:4px solid var(--crimson);border-radius:12px;padding:1rem 1.2rem;color:var(--ink-soft);font-size:.95rem}

/* ---------- nav toggle (mobile) ---------- */
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;padding:.45rem .6rem;cursor:pointer;color:var(--crimson-deep);font-size:1.2rem;line-height:1}

/* ---------- responsive / mobile-first ---------- */
@media(min-width:560px){
  .ben-grid{grid-template-columns:repeat(2,1fr)}
}
@media(min-width:720px){
  .how-grid{grid-template-columns:repeat(3,1fr)}
  .ing-grid{grid-template-columns:repeat(2,1fr)}
  .ing-card:nth-child(5n){grid-column:1/-1}
}
@media(min-width:880px){
  .hero h1{font-size:2.7rem}
  .hero-in{grid-template-columns:1.05fr .95fr;gap:3rem;padding-top:4rem;padding-bottom:4rem}
  .split{grid-template-columns:1.05fr .95fr;gap:3rem}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:2rem}
}
@media(max-width:720px){
  .nav-toggle{display:inline-flex}
  .nav{position:fixed;top:64px;right:0;left:0;background:var(--ivory);flex-direction:column;align-items:stretch;padding:0;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow);
    max-height:0;overflow:hidden;transition:max-height .28s ease}
  .nav.open{max-height:calc(100vh - 64px);overflow:auto;padding:.6rem 1rem 1rem}
  .nav a{padding:.85rem .9rem}
  .nav a.cta-btn{margin:.5rem 0 0;text-align:center}
}

/* RTL safety (none of these markets are Arabic, but keep the toggle robust) */
html[lang^="ar"]{direction:rtl}
html[lang^="ar"] body{text-align:right}