:root{
  --navy:#0c244a; --navy-2:#13335f; --ink:#14213a; --muted:#5b6578; --bg:#f4f6f9; --card:#fff; --line:#dfe4ec;
  --yellow:#f4e400; --red:#e0412b; --radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Cairo",system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px}
img{max-width:100%;display:block}
a{color:inherit}
.container{width:min(1140px,100% - 32px);margin-inline:auto}

/* header */
.site-header{background:var(--navy);position:sticky;top:0;z-index:20}
.bar{display:flex;align-items:center;gap:20px;min-height:68px}
.brand img{height:30px;width:auto}
.nav{display:flex;gap:4px;margin-inline-start:auto;flex-wrap:wrap}
.nav a{color:#fff;text-decoration:none;padding:8px 12px;border-radius:8px;font-weight:600;font-size:15px;opacity:.9}
.nav a:hover,.nav a.active{background:rgba(255,255,255,.12);opacity:1}
.nav a.cta{background:var(--yellow);color:var(--navy);opacity:1}
.lang-switch{display:flex;gap:4px}
.lang-switch button{background:transparent;border:1px solid rgba(255,255,255,.35);color:#fff;border-radius:8px;padding:4px 10px;font:inherit;font-size:14px;cursor:pointer}
.lang-switch button.on{background:#fff;color:var(--navy);border-color:#fff}
.menu-toggle{display:none;background:none;border:0;padding:8px;cursor:pointer;margin-inline-start:auto}
.menu-toggle span{display:block;width:24px;height:2px;background:#fff;margin:5px 0}

/* hero */
.hero{background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;padding:72px 0 80px}
.hero h1{font-size:clamp(28px,4.4vw,48px);line-height:1.25;margin:0 0 16px;max-width:760px;font-weight:800}
.hero p{font-size:18px;max-width:640px;opacity:.9;margin:0 0 28px}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;border:0;border-radius:10px;padding:12px 24px;font:inherit;font-weight:700;text-decoration:none;cursor:pointer;background:var(--yellow);color:var(--navy)}
.btn:hover{filter:brightness(.95)}
.btn.ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.6)}
.btn.dark{background:var(--navy);color:#fff}

/* sections */
.section{padding:56px 0}
.section h2{font-size:28px;margin:0 0 24px;font-weight:800}
.page-title{background:var(--navy);color:#fff;padding:40px 0}
.page-title h1{margin:0 0 6px;font-size:34px;font-weight:800}
.page-title p{margin:0;opacity:.85;max-width:680px}
.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;text-decoration:none;transition:box-shadow .15s,transform .15s}
.card:hover{box-shadow:0 10px 28px rgba(12,36,74,.12);transform:translateY(-2px)}
.card .thumb{aspect-ratio:4/3;background:#e9edf3;overflow:hidden}
.card .thumb img{width:100%;height:100%;object-fit:cover;object-position:top}
.card .body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:6px;flex:1}
.card h3{margin:0;font-size:18px;line-height:1.35}
.card .tag{color:var(--muted);font-size:14px}
.card .meta{margin-top:auto;display:flex;justify-content:space-between;align-items:center;padding-top:10px;color:var(--navy);font-weight:700;font-size:14px}
.code{display:inline-block;font-weight:800;font-size:13px;padding:2px 10px;border-radius:6px;letter-spacing:.04em;direction:ltr}
.code.yellow{background:var(--yellow);color:var(--navy)} .code.red{background:var(--red);color:#fff}
.why{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.why div{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.why h3{margin:0 0 6px;color:var(--navy)}
.why p{margin:0;color:var(--muted)}
.band{background:var(--navy);color:#fff;border-radius:var(--radius);padding:36px;display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.band h2{margin:0 0 6px;font-size:26px} .band p{margin:0;opacity:.85;max-width:560px}

/* product detail */
.detail{display:grid;gap:36px;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);align-items:start}
.detail .pic{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.detail h1{margin:6px 0 4px;font-size:32px;line-height:1.3}
.facts{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0 20px}
.facts span{background:#fff;border:1px solid var(--line);border-radius:8px;padding:4px 12px;font-size:14px}
.detail h2{font-size:20px;margin:26px 0 8px}
.detail ol,.detail ul{padding-inline-start:22px;margin:0}
.detail li{margin-bottom:6px}
.safety{margin-top:24px;padding:14px 16px;border-radius:10px;background:#fff7d6;border:1px solid #efd96a;font-size:14px}
.back{display:inline-block;margin-bottom:16px;color:var(--navy);font-weight:700;text-decoration:none}

/* forms */
.form{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:grid;gap:16px;grid-template-columns:1fr 1fr}
.form .full{grid-column:1/-1}
.field label{display:block;font-weight:600;margin-bottom:4px;font-size:15px}
.field input,.field select,.field textarea{width:100%;font:inherit;padding:10px 12px;border:1px solid #c7cfdb;border-radius:8px;background:#fff;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--navy);outline-offset:1px}
.checks{display:grid;gap:8px;grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}
.checks label{display:flex;gap:8px;align-items:center;font-weight:500;background:#f4f6f9;border:1px solid var(--line);border-radius:8px;padding:8px 12px;cursor:pointer}
.checks input{width:auto}
.notice{grid-column:1/-1;padding:12px 14px;border-radius:8px;font-weight:600}
.notice.ok{background:#e3f6e8;color:#14612c} .notice.err{background:#fde8e6;color:#8f2418}
.two{display:grid;gap:32px;grid-template-columns:minmax(0,1fr) minmax(0,1.6fr);align-items:start}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.panel h2{margin:0 0 12px;font-size:20px}
.panel ul{margin:0;padding-inline-start:20px}
.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:16px}
.contact-list b{display:block;color:var(--muted);font-size:13px;font-weight:600}
.contact-list a{font-size:18px;font-weight:700;color:var(--navy);text-decoration:none}
.ltr{direction:ltr;unicode-bidi:embed;display:inline-block}

/* footer */
.site-footer{background:var(--navy);color:#cfd8e8;padding:32px 0;margin-top:40px;font-size:14px}
.site-footer .row{display:flex;gap:16px;justify-content:space-between;flex-wrap:wrap;align-items:center}
.site-footer img{height:24px;width:auto}

@media (max-width:860px){
  .menu-toggle{display:block}
  .nav{display:none;position:absolute;inset-inline:0;top:68px;background:var(--navy);flex-direction:column;padding:8px 16px 16px;margin:0}
  .nav.open{display:flex}
  .bar{flex-wrap:wrap}
  .lang-switch{order:3}
  .detail,.two{grid-template-columns:1fr}
  .form{grid-template-columns:1fr;padding:20px}
  .hero{padding:48px 0 56px}
}

/* chat */
.chat{position:fixed;inset-inline-end:16px;bottom:16px;z-index:30}
.chat-fab{background:var(--yellow);color:var(--navy);border:0;border-radius:999px;padding:12px 20px;font:inherit;font-weight:700;cursor:pointer;box-shadow:0 6px 20px rgba(12,36,74,.3)}
.chat-box{width:min(360px,100vw - 32px);height:min(480px,100dvh - 32px);background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 12px 40px rgba(12,36,74,.28);display:flex;flex-direction:column;overflow:hidden}
.chat-box[hidden],.chat-fab[hidden],.chat-in[hidden]{display:none}
.chat-head{background:var(--navy);color:#fff;padding:12px 16px;display:flex;justify-content:space-between;align-items:center}
.chat-head button{background:none;border:0;color:#fff;font-size:24px;cursor:pointer;line-height:1}
.chat-log{flex:1;overflow:auto;padding:14px;display:flex;flex-direction:column;gap:10px;background:#f4f6f9}
.msg{max-width:85%;padding:9px 13px;border-radius:14px;font-size:15px;line-height:1.5}
.msg.bot{background:#fff;border:1px solid var(--line);align-self:flex-start}
.msg.me{background:var(--navy);color:#fff;align-self:flex-end}
.msg a{color:var(--navy);font-weight:700}.msg a.btn{color:#fff}
.opts{display:grid;gap:6px;margin-top:8px}
.opts button{font:inherit;border:1px solid var(--navy);background:#fff;color:var(--navy);border-radius:10px;padding:8px 10px;cursor:pointer;font-weight:600}
.opts button:hover{background:var(--navy);color:#fff}
.chat-in{display:flex;gap:8px;padding:10px;border-top:1px solid var(--line)}
.chat-in input{flex:1;min-width:0;font:inherit;padding:9px 12px;border:1px solid #c7cfdb;border-radius:8px}
.chat-in .btn{padding:8px 16px}

/* whatsapp */
.wa-fab{position:fixed;inset-inline-start:16px;bottom:16px;z-index:30;display:flex;align-items:center;gap:8px;background:#25d366;color:#fff;text-decoration:none;font-weight:700;border-radius:999px;padding:12px 18px;box-shadow:0 6px 20px rgba(0,0,0,.25)}
.wa-fab svg{width:22px;height:22px;fill:#fff}
.btn.wa{background:#25d366;color:#fff}
@media (max-width:520px){.wa-fab span{display:none}.wa-fab{padding:14px}}