/* ============================================================
   SwissDent — modern oral-care (enamel support & daily freshness).
   Design language: "SWISS PRECISION" — white + navy + icy cyan,
   generous whitespace, hairline grid, sharp clean geometry.
   Cover archetype. A high-end hygiene brand: minimal, exact,
   clinical-clean but never a supplement template.
   ============================================================ */
:root{
  --ink:#0d2140;          /* navy ink */
  --ink2:#244a75;
  --muted:#5a728c;
  --accent:#0b63c2;       /* icy steel blue */
  --accent-d:#084c96;
  --cyan:#29b8e6;
  --ice:#eaf6fc;
  --bg:#ffffff;
  --soft:#f5f9fc;
  --card:#ffffff;
  --line:#dbe7f0;
  --grad:linear-gradient(90deg,#0b63c2 0%,#29b8e6 100%);
  --btn:linear-gradient(90deg,#0a4f9e 0%,#0b63c2 100%);
  --glow:rgba(11,99,194,.20);
  --font:'Helvetica Neue','Segoe UI',system-ui,-apple-system,Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
html[lang^="ar"]{direction:rtl}
html[lang^="ar"] body{text-align:right}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.62;-webkit-font-smoothing:antialiased;letter-spacing:.01em}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}
h1,h2,h3{line-height:1.14;letter-spacing:-.01em;font-weight:700}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---- header: precise, hairline navy ---- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.93);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-in{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:70px}
.brand{font-weight:800;letter-spacing:.06em;font-size:1.22rem;color:var(--ink);text-transform:uppercase}
.brand b{color:var(--accent);font-weight:800}
.nav{display:flex;align-items:center;gap:26px}
.nav a{color:var(--ink2);font-weight:600;font-size:.88rem;text-transform:uppercase;letter-spacing:.05em;padding-bottom:4px;border-bottom:2px solid transparent;transition:.15s}
.nav a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.cta-btn{display:inline-block;background:var(--btn);color:#fff;font-weight:700;text-transform:uppercase;letter-spacing:.05em;font-size:.86rem;padding:.9rem 1.7rem;border-radius:2px;box-shadow:0 12px 24px -12px rgba(11,99,194,.55);transition:transform .15s ease,box-shadow .15s ease}
.cta-btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px -12px rgba(11,99,194,.65)}
.nav .cta-btn{color:#fff;padding:.6rem 1.2rem}

/* ---- hero: cover archetype, airy white Swiss minimal ---- */
.hero.hero-cover{background:linear-gradient(180deg,#f5f9fc 0%,#ffffff 100%);color:var(--ink)}
.hero-cover .wrap{position:relative}
.eyebrow{display:inline-block;color:var(--accent);font-weight:700;letter-spacing:.2em;text-transform:uppercase;font-size:.7rem;padding:.3rem 0;border-bottom:2px solid var(--accent)}
.hero-cover h1{font-size:clamp(2.2rem,5vw,3.5rem);color:var(--ink)}
.hero-cover .lead{color:var(--muted)}
.hero-cover .hot{color:var(--accent);font-weight:700;font-size:.88rem;letter-spacing:.03em;margin-top:16px}
.hero-cover .hero-visual.cover>div{position:relative;display:flex;align-items:center;justify-content:center}
/* soft icy glow + fine concentric precision rings behind product */
.hero-cover .hero-visual.cover>div::before{content:"";position:absolute;top:50%;left:50%;translate:-50% -50%;width:min(360px,62%);aspect-ratio:1;border-radius:50%;pointer-events:none;background:radial-gradient(circle,rgba(41,184,230,.32) 0%,rgba(41,184,230,.08) 55%,rgba(41,184,230,0) 74%)}
.hero-cover .hero-visual.cover>div::after{content:"";position:absolute;top:50%;left:50%;translate:-50% -50%;width:min(330px,56%);aspect-ratio:1;border-radius:50%;pointer-events:none;border:1px solid rgba(11,99,194,.2);box-shadow:0 0 0 20px rgba(11,99,194,.04),0 0 0 40px rgba(11,99,194,.03)}
.hero-cover .hero-visual.cover>div .hero-prod{width:min(300px,34vw);filter:drop-shadow(0 32px 46px rgba(26,74,112,.32))}
.hero-actions .cta-btn{font-size:.95rem;padding:.95rem 1.9rem}
/* precise clean float-cards */
.float-card{background:#fff;border:1px solid var(--line);border-radius:2px;box-shadow:0 14px 30px -20px rgba(11,99,194,.4);font-size:.8rem;font-weight:700;color:var(--ink2);letter-spacing:.02em;border-left:3px solid var(--cyan)}

/* ---- sections: precise grid + hairline dividers ---- */
section{padding:70px 24px}
.sec-head{max-width:720px;margin:0 auto 42px;text-align:center}
.kicker{color:var(--accent);font-weight:700;letter-spacing:.2em;text-transform:uppercase;font-size:.7rem;margin-bottom:10px}
.sec-head h2{font-size:clamp(1.6rem,2.8vw,2.3rem);color:var(--ink);margin-bottom:12px}
.sec-head h2::after{content:"";display:block;width:44px;height:3px;background:var(--grad);margin:14px auto 0}
.sec-head p{color:var(--muted);font-size:1rem;max-width:60ch;margin:0 auto}
section#about{background:var(--soft);border-top:1px solid var(--line)}
section#ingredients{background:#fff}
section#benefits{background:var(--soft);border-top:1px solid var(--line)}
section#how{background:#fff}
section#faq{background:var(--soft);border-top:1px solid var(--line)}

.ben-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ben-card{background:var(--card);border:1px solid var(--line);border-radius:2px;padding:26px 22px 24px;box-shadow:0 14px 28px -24px rgba(11,99,194,.35);position:relative;overflow:hidden}
.ben-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}
.ben-card .ic{width:46px;height:46px;border-radius:2px;background:var(--ice);border:1px solid var(--line);display:grid;place-items:center;margin-bottom:16px}
.ben-card .ic svg{width:22px;height:22px;color:var(--accent)}
.ben-card h3{font-size:1.05rem;color:var(--ink);margin-bottom:8px}
.ben-card p{color:var(--muted);font-size:.92rem}

.how-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.step{background:var(--card);border:1px solid var(--line);border-radius:2px;padding:28px 22px;box-shadow:0 14px 28px -24px rgba(11,99,194,.35)}
.step .num{width:46px;height:46px;border-radius:2px;background:var(--btn);color:#fff;display:grid;place-items:center;font-weight:800;font-size:1.05rem;margin-bottom:16px}
.step h3{font-size:1.05rem;color:var(--ink);margin-bottom:8px}
.step p{color:var(--muted);font-size:.92rem}

.ing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}
.ing-card{background:#fff;border:1px solid var(--line);border-radius:2px;padding:18px;box-shadow:0 12px 24px -26px rgba(11,99,194,.5);border-top:2px solid var(--cyan)}
.ing-card h3{font-size:.98rem;color:var(--ink);margin-bottom:6px}
.ing-card p{color:var(--muted);font-size:.88rem}

/* split (about) */
#about .split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;background:linear-gradient(120deg,#0b3a6b,#0b63c2);border-radius:2px;padding:48px;color:#eaf6fc;box-shadow:0 24px 46px -28px rgba(11,99,194,.7)}
#about .split .kicker{color:#8fd8f4}
#about .split h2{color:#fff;font-size:clamp(1.4rem,2.4vw,1.9rem);margin-bottom:12px}
#about .split p.lead{color:#cfe7f8;font-size:1rem}
.checklist{list-style:none;margin:0 0 24px}
.checklist li{display:flex;align-items:flex-start;gap:12px;color:#eaf6fc;font-weight:600;padding:9px 0;border-bottom:1px solid rgba(255,255,255,.18);font-size:.95rem}
.checklist svg{flex:none;width:20px;height:20px;color:#8fd8f4;margin-top:3px}

/* quote */
.quote{background:var(--ice);color:var(--ink);text-align:center}
.quote h2{font-size:clamp(1.6rem,2.7vw,2.2rem);max-width:660px;margin:0 auto 14px}
.quote p{color:var(--accent);max-width:600px;margin:0 auto 28px;font-size:1rem}
.quote .cta-btn{background:var(--btn);color:#fff}

/* faq */
.faq-box{max-width:780px;margin:0 auto}
details{background:#fff;border:1px solid var(--line);border-radius:2px;margin-bottom:12px;box-shadow:0 10px 22px -24px rgba(11,99,194,.5);overflow:hidden}
summary{list-style:none;padding:18px 46px 18px 20px;font-weight:700;color:var(--ink);cursor:pointer;position:relative;letter-spacing:.01em}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);color:var(--accent);font-size:1.3rem;font-weight:700}
details[open] summary::after{content:"−"}
details .a{padding:0 20px 18px;color:var(--muted);font-size:.95rem}

/* cta band */
.cta-band{background:var(--btn);color:#fff;text-align:center;position:relative;overflow:hidden}
.cta-band .wrap{position:relative}
.cta-band h2{font-size:clamp(1.6rem,3vw,2.3rem);margin-bottom:12px}
.cta-band p{color:#eaf6fc;max-width:620px;margin:0 auto 28px}
.cta-band .cta-btn{background:#fff;color:var(--accent);border-radius:2px;box-shadow:0 16px 30px -14px rgba(4,30,60,.5)}

/* simple subpages */
.simple{background:#fff;padding:64px 24px}
.simple .wrap{max-width:820px}
.simple .sec-head h1{color:var(--ink);font-size:clamp(1.7rem,3vw,2.3rem);margin-bottom:8px}
.simple .sec-head h1::after{content:"";display:block;width:44px;height:3px;background:var(--grad);margin:14px auto 0}
.simple p{color:var(--muted);margin-bottom:14px}
.simple .tip{background:var(--ice);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:2px;padding:16px 18px;color:var(--accent);font-size:.95rem;margin:18px 0}
.cta-wrapper{text-align:center;margin-top:28px}
.simple h2{font-size:1.3rem;color:var(--ink);margin:26px 0 12px}

/* footer */
.site-footer{background:#081d36;color:#cfe0ee;padding:54px 24px 30px}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-bottom:30px}
.site-footer h4{color:#fff;font-size:.84rem;margin-bottom:12px;text-transform:uppercase;letter-spacing:.12em}
.site-footer p{font-size:.86rem;color:#a9c4da}
.site-footer ul{list-style:none;display:flex;flex-direction:column}
.site-footer li{margin-bottom:8px}
.site-footer a{color:#c3d9ea;font-size:.9rem}
.site-footer a:hover{color:#6fd3f5}
.ft-buy{display:inline-block;background:var(--btn);color:#fff !important;font-weight:700;padding:9px 18px;border-radius:2px;margin-bottom:6px;box-shadow:0 4px 14px rgba(0,0,0,.3)}
.ft-buy:hover{filter:brightness(1.08);color:#fff}
.footer-grid{align-items:start}
.ft-brand p{max-width:38ch;opacity:.9}
.footer-bot{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;color:#8fb1c9;font-size:.82rem;text-align:center}
.lang-block{margin-bottom:28px}
.lang-label{color:#a9c4da;font-size:.8rem;text-transform:uppercase;letter-spacing:.12em;margin-bottom:12px}
.lang-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.lang-link{display:flex;align-items:center;gap:10px;min-height:56px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.16);color:#e6f2fa;padding:.45rem .7rem;border-radius:2px;font-size:.86rem;transition:.15s;overflow:hidden}
.lang-link:hover{background:rgba(41,184,230,.14);border-color:var(--cyan)}
.lang-link.active{background:var(--btn);color:#fff;border-color:var(--cyan);font-weight:700}
.lang-link img{display:inline-block;vertical-align:middle;width:22px;height:15px;object-fit:cover;flex:none;border-radius:2px}
.lang-link span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* focus states */
a:focus-visible,summary:focus-visible{outline:3px solid rgba(41,184,230,.6);outline-offset:2px;border-radius:3px}
.cta-btn:focus-visible{outline:3px solid rgba(8,76,150,.6);outline-offset:3px}

/* responsive */
@media (max-width:960px){.ben-grid,.how-grid{grid-template-columns:1fr 1fr}#about .split{grid-template-columns:1fr;padding:34px}}
@media (max-width:720px){
  .site-header{position:static}
  .header-in{flex-direction:column;gap:10px;padding:12px 14px;height:auto;flex-wrap:wrap}
  .nav{flex-wrap:wrap;justify-content:center;row-gap:8px}
  .ben-grid,.how-grid,.ing-grid{grid-template-columns:1fr}
  #about .split{grid-template-columns:1fr;gap:14px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  section{padding:52px 18px}
  .hero-cover .hero-visual.cover>div .hero-prod{width:min(200px,55vw)}
}
@media (max-width:640px){
  .sec-head h2{font-size:1.6rem}
  .hero-cover h1{font-size:2rem}
  .lang-list{grid-template-columns:1fr 1fr}
  .float-card{font-size:.72rem;padding:8px 10px}
}
@media (max-width:460px){
  .lang-link{min-height:52px;font-size:.8rem;padding:6px 10px}
  .footer-bot{text-align:center}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}