:root{
  --navy:#152A4E; --navy-2:#0F1F3A; --blue:#2E6DB4; --blue-2:#3E86D6;
  --green:#3E9B63; --leaf:#5FB87E; --green-dark:#2C7A4B;
  --cream:#F5F8F2; --ice:#EAF1F8; --ice-2:#F3F7FC;
  --ink:#182234; --muted:#57657C; --line:#DCE6F0;
  --gold:#DFA43A; --ok:#2C7A4B; --warn:#B4531A; --danger:#C0392B;
  --white:#fff; --radius:16px; --shadow:0 14px 40px rgba(21,42,78,.10);
  --shadow-sm:0 6px 18px rgba(21,42,78,.08); --maxw:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Figtree",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--white);line-height:1.65;font-size:17px}
h1,h2,h3,h4{font-family:"Fraunces","Georgia",serif;line-height:1.16;color:var(--navy);margin:0 0 .5em;font-weight:600;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.4vw,3.15rem)}
h2{font-size:clamp(1.55rem,3vw,2.3rem)}
h3{font-size:1.24rem}
p{margin:0 0 1rem}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.section{padding:64px 0}
.section.tint{background:var(--ice-2)}
.section.cream{background:var(--cream)}
.section.ice{background:linear-gradient(180deg,var(--ice),#fff)}
.center{text-align:center}
.lead{font-size:1.12rem;color:var(--muted);max-width:760px;margin:0 auto 1.2rem}
.eyebrow{display:inline-block;font-family:"Figtree",sans-serif;font-weight:700;font-size:.76rem;letter-spacing:.14em;text-transform:uppercase;color:var(--green-dark);background:#E7F3EC;border:1px solid #CDE7D6;padding:6px 14px;border-radius:999px;margin-bottom:14px}

/* buttons */
.syn-btn{display:inline-block;background:linear-gradient(135deg,var(--green),var(--leaf));color:#fff!important;font-family:"Figtree",sans-serif;font-weight:700;font-size:1.02rem;padding:15px 34px;border-radius:999px;box-shadow:0 10px 26px rgba(62,155,99,.30);border:none;cursor:pointer;transition:transform .15s,box-shadow .15s;text-align:center}
.syn-btn:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(62,155,99,.42);text-decoration:none;color:#fff!important}
.syn-btn.blue{background:linear-gradient(135deg,var(--blue),var(--blue-2));box-shadow:0 10px 26px rgba(46,109,180,.30)}
.syn-btn.gold{background:linear-gradient(135deg,#EAB64A,var(--gold));color:#3a2a06!important;box-shadow:0 10px 26px rgba(223,164,58,.34)}
.syn-btn.big{font-size:1.14rem;padding:18px 46px}
.syn-btn.ghost{background:#fff;color:var(--navy)!important;border:2px solid var(--line);box-shadow:none}
.btn-sub{font-size:.82rem;color:var(--muted);margin-top:9px}

/* header/nav */
.syn-head{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(9px);border-bottom:1px solid var(--line)}
.syn-nav{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;max-width:var(--maxw);margin:0 auto}
.syn-brand{display:flex;align-items:center;gap:11px;font-family:"Fraunces",serif;font-weight:600;font-size:1.3rem;color:var(--navy)}
.syn-brand:hover{text-decoration:none}
.syn-logo{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--navy),var(--green));display:flex;align-items:center;justify-content:center;color:#fff;font-size:19px;flex:none}
.syn-brand small{display:block;font-family:"Figtree",sans-serif;font-weight:600;font-size:.58rem;letter-spacing:.16em;color:var(--green-dark);text-transform:uppercase}
.syn-links{display:flex;align-items:center;gap:7px}
.syn-links a:not(.syn-btn){color:var(--navy);font-weight:600;font-size:.94rem;padding:8px 12px;border-radius:9px}
.syn-links a:not(.syn-btn):hover{background:var(--ice);text-decoration:none}
.syn-links .syn-btn{color:#fff;opacity:1;padding:11px 22px;font-size:.94rem}
.syn-burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.syn-burger span{width:25px;height:3px;background:var(--navy);border-radius:3px}

/* hero */
.syn-hero{background:radial-gradient(1000px 500px at 80% -10%,#e2eeff 0,rgba(255,255,255,0) 60%),linear-gradient(180deg,#fff,var(--cream));overflow:hidden}
.syn-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;padding:56px 0 64px}
.syn-hero-title{font-size:clamp(2.1rem,4.6vw,3.3rem)}
.syn-hero-title .g{color:var(--green)}
.syn-hero-rest .lead{margin-left:0;text-align:left}
.syn-trust-row{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin:18px 0}
.syn-trust-row img{height:50px;width:auto}
.syn-hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:8px}
.syn-hero-shot{position:relative;text-align:center}
.syn-hero-shot>img{margin:0 auto;filter:drop-shadow(0 24px 40px rgba(21,42,78,.22));max-width:92%}
.syn-mini-flags{display:flex;gap:9px;flex-wrap:wrap;margin-top:14px}
.syn-flag{font-size:.76rem;font-weight:700;color:var(--navy);background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 13px}
.syn-flag.warn{background:#FFF3E9;border-color:#F1CFA9;color:#8a4b18}

/* signature 4-layer widget */
.syn-widget{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:18px 18px 14px;max-width:440px;margin:16px auto 0}
.syn-widget h4{font-size:.95rem;margin:0 0 12px;color:var(--navy);font-family:"Figtree",sans-serif;font-weight:700}
.syn-layer{display:flex;align-items:center;gap:10px;margin-bottom:9px}
.syn-layer .lb{flex:none;width:112px;font-size:.72rem;font-weight:700;color:var(--navy)}
.syn-track{flex:1;height:12px;background:var(--ice);border-radius:999px;overflow:hidden}
.syn-fill{height:100%;width:0;border-radius:999px;transition:width 1.1s ease}
.syn-fill.f1{background:linear-gradient(90deg,var(--green),var(--leaf))}
.syn-fill.f2{background:linear-gradient(90deg,var(--blue),var(--blue-2))}
.syn-fill.f3{background:linear-gradient(90deg,#C98BD0,#B36BC0)}
.syn-fill.f4{background:linear-gradient(90deg,var(--gold),#EAB64A)}
.syn-widget.on .f1{width:82%}
.syn-widget.on .f2{width:68%;transition-delay:.25s}
.syn-widget.on .f3{width:74%;transition-delay:.5s}
.syn-widget.on .f4{width:60%;transition-delay:.75s}
.syn-widget p{font-size:.72rem;color:var(--muted);margin:10px 0 0;line-height:1.5}

/* badges */
.syn-badges{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.syn-badge{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 14px;text-align:center;box-shadow:var(--shadow-sm)}
.syn-badge img{height:62px;width:auto;margin:0 auto 10px}
.syn-badge b{display:block;font-family:"Figtree",sans-serif;font-weight:700;color:var(--navy);font-size:.96rem}
.syn-badge span{font-size:.78rem;color:var(--muted)}

/* split / cards */
.syn-split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.syn-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm)}
.syn-points{list-style:none;padding:0;margin:0;display:grid;gap:14px}
.syn-points li{display:flex;gap:13px;align-items:flex-start}
.syn-points .tick{flex:none;width:26px;height:26px;border-radius:50%;background:#E7F3EC;color:var(--green-dark);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.9rem;margin-top:2px}
.syn-points b{color:var(--navy)}

/* how it works */
.syn-how{background:linear-gradient(180deg,var(--navy),var(--navy-2));color:#d5e2f4}
.syn-how h2,.syn-how h3{color:#fff}
.syn-how .eyebrow{background:rgba(255,255,255,.1);color:#bfe6cd;border-color:rgba(255,255,255,.18)}
.syn-how .lead{color:#bccbe6}
.syn-info-shot{border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,.14);box-shadow:0 20px 46px rgba(0,0,0,.34);margin:8px 0 34px;background:#fff}
.syn-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.syn-step{background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:22px 18px}
.syn-step .n{width:40px;height:40px;border-radius:11px;background:linear-gradient(135deg,var(--green),var(--leaf));color:#fff;font-family:"Fraunces",serif;font-weight:700;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.syn-step h3{font-size:1.05rem;margin-bottom:5px}
.syn-step p{font-size:.9rem;color:#b8c8e3;margin:0}

/* layers explainer */
.syn-layers{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.syn-lcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);border-top:4px solid var(--green)}
.syn-lcard:nth-child(2){border-top-color:var(--blue)}
.syn-lcard:nth-child(3){border-top-color:#B36BC0}
.syn-lcard:nth-child(4){border-top-color:var(--gold)}
.syn-lcard h3{font-size:1.05rem}
.syn-lcard p{font-size:.9rem;color:var(--muted);margin:0}
.syn-lcard .ings{font-size:.8rem;color:var(--navy);font-weight:600;margin-top:8px}

/* reviews */
.syn-reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.syn-review{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm)}
.syn-review .who{display:flex;align-items:center;gap:13px;margin-bottom:12px}
.syn-review .who img{width:54px;height:54px;border-radius:50%;object-fit:cover;flex:none}
.syn-review .who b{display:block;color:var(--navy);font-family:"Figtree",sans-serif;font-weight:700;font-size:.98rem}
.syn-review .who span{font-size:.78rem;color:var(--muted)}
.syn-stars{color:var(--gold);font-size:.95rem;letter-spacing:2px;margin-bottom:8px}
.syn-review p{font-size:.95rem;margin:0}
.syn-review .tag{display:inline-block;margin-top:12px;font-size:.72rem;color:var(--muted);background:var(--ice);border-radius:999px;padding:3px 11px}

/* pricing */
.syn-pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.syn-plan{position:relative;background:#fff;border:1.6px solid var(--line);border-radius:20px;padding:28px 24px;display:flex;flex-direction:column;box-shadow:var(--shadow-sm)}
.syn-plan.feat{border-color:var(--green);box-shadow:0 20px 46px rgba(62,155,99,.20);transform:translateY(-6px)}
.syn-plan .ribbon{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--green),var(--leaf));color:#fff;font-family:"Figtree",sans-serif;font-weight:700;font-size:.72rem;letter-spacing:.05em;padding:5px 16px;border-radius:999px;white-space:nowrap}
.syn-plan img{height:140px;width:auto;margin:6px auto 14px;object-fit:contain}
.syn-plan h3{text-align:center;margin-bottom:2px}
.syn-plan .per{text-align:center;color:var(--muted);font-size:.86rem;margin-bottom:12px}
.syn-plan .price{text-align:center;font-family:"Fraunces",serif;font-size:2.1rem;font-weight:600;color:var(--navy);line-height:1}
.syn-plan .price small{display:block;font-size:.8rem;color:var(--muted);font-weight:500;margin-top:4px;font-family:"Figtree",sans-serif}
.syn-plan ul{list-style:none;padding:0;margin:16px 0 20px;display:grid;gap:9px}
.syn-plan ul li{font-size:.9rem;padding-left:24px;position:relative;color:#33405c}
.syn-plan ul li:before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:800}
.syn-plan .syn-btn{margin-top:auto;width:100%}

/* bonuses */
.syn-bonus{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.syn-bonus figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;text-align:center;box-shadow:var(--shadow-sm)}
.syn-bonus img{height:150px;width:auto;margin:0 auto 12px;border-radius:8px}
.syn-bonus figcaption{font-size:.86rem;font-weight:700;color:var(--navy);font-family:"Figtree",sans-serif}

/* guarantee */
.syn-guarantee{display:grid;grid-template-columns:170px 1fr;gap:28px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm)}
.syn-guarantee img{width:100%;max-width:170px}

/* FAQ */
.syn-faq{max-width:820px;margin:0 auto}
.syn-q{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
.syn-q button{width:100%;text-align:left;background:none;border:none;padding:17px 20px;font-family:"Figtree",sans-serif;font-weight:700;font-size:1rem;color:var(--navy);cursor:pointer;display:flex;justify-content:space-between;gap:14px;align-items:center}
.syn-q .a{max-height:0;overflow:hidden;transition:max-height .32s ease;padding:0 20px}
.syn-q .a p{padding:2px 0 18px;margin:0;color:var(--muted);font-size:.95rem}
.syn-q.open .a{max-height:520px}
.syn-q .ic{flex:none;transition:transform .3s;color:var(--green)}
.syn-q.open .ic{transform:rotate(45deg)}

/* notices */
.syn-notice{background:#FFF7EC;border:1px solid #F1D9AE;border-left:4px solid var(--gold);border-radius:12px;padding:16px 18px;font-size:.9rem;color:#6a4d1c}
.syn-notice b{color:#5a3f12}
.syn-notice.blue{background:var(--ice);border-color:var(--line);border-left-color:var(--blue);color:#2a3a5c}
.syn-notice.blue b{color:var(--navy)}
.syn-notice.green{background:#EAF6EE;border-color:#CDE7D6;border-left-color:var(--green);color:#245038}
.syn-notice.green b{color:var(--green-dark)}
.syn-notice.danger{background:#FDEEEC;border-color:#F3C7C1;border-left-color:var(--danger);color:#7d2a20}
.syn-notice.danger b{color:#6a2018}
.syn-flagline{font-size:.82rem;color:var(--warn);font-weight:700;margin-top:8px}

/* allergen banner */
.syn-allergen{display:flex;gap:14px;align-items:flex-start;background:#FDEEEC;border:1px solid #F3C7C1;border-radius:14px;padding:18px 20px}
.syn-allergen .ic{flex:none;width:40px;height:40px;border-radius:10px;background:var(--danger);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800}
.syn-allergen p{margin:0;font-size:.92rem;color:#7d2a20}
.syn-allergen b{color:#6a2018}

/* references */
.syn-refs{font-size:.82rem;color:var(--muted);max-width:900px;margin:0 auto}
.syn-refs ol{padding-left:20px;display:grid;gap:6px}
.syn-refs a{word-break:break-word}

/* blog */
.syn-posts{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.syn-post{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column}
.syn-post .k{font-size:.74rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--green-dark);margin-bottom:9px}
.syn-post h3{font-size:1.1rem}
.syn-post p{font-size:.9rem;color:var(--muted)}
.syn-post a{margin-top:auto;font-weight:700;font-family:"Figtree",sans-serif;font-size:.9rem}

/* final CTA */
.syn-final{background:linear-gradient(135deg,var(--navy),var(--green-dark));color:#fff;border-radius:24px;padding:52px 40px;text-align:center;box-shadow:var(--shadow)}
.syn-final h2{color:#fff}
.syn-final .lead{color:#d3ebdd}
.syn-final .syn-btn{background:#fff;color:var(--green-dark)!important;box-shadow:0 12px 30px rgba(0,0,0,.22)}

/* footer */
.syn-foot{background:var(--navy-2);color:#a9bbdc;font-size:.9rem;padding:52px 0 30px}
.syn-foot h4{color:#fff;font-size:1rem;margin-bottom:14px;font-family:"Figtree",sans-serif;font-weight:700}
.syn-foot a{color:#bccde8}
.syn-foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:34px;margin-bottom:30px}
.syn-foot-links{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.syn-foot .disc{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;font-size:.8rem;color:#8fa2c6;line-height:1.7}
.syn-foot .disc p{margin:0 0 10px}

/* page hero */
.syn-page-hero{background:linear-gradient(180deg,var(--ice),#fff);padding:44px 0 26px;border-bottom:1px solid var(--line)}
.syn-crumb{font-size:.82rem;color:var(--muted);margin-bottom:10px}
.syn-crumb a{color:var(--blue)}
.prose p{margin:0 0 1.1rem}
.prose h2{margin-top:1.8rem}
.prose h3{margin-top:1.3rem}
.prose ul{padding-left:20px;display:grid;gap:8px;margin:0 0 1.2rem}
.prose table{width:100%;border-collapse:collapse;margin:0 0 1.2rem;font-size:.92rem}
.prose th,.prose td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.prose th{background:var(--ice);font-family:"Figtree",sans-serif}

/* responsive */
@media(max-width:900px){
  .syn-hero-grid{grid-template-columns:1fr;gap:26px;padding:34px 0 40px}
  .syn-hero-copy{display:contents}
  .syn-hero-shot{order:1}
  .syn-hero-title{order:2}
  .syn-hero-rest{order:3}
  .syn-split{grid-template-columns:1fr;gap:26px}
  .syn-steps{grid-template-columns:1fr 1fr}
  .syn-layers{grid-template-columns:1fr 1fr}
  .syn-reviews{grid-template-columns:1fr}
  .syn-pricing{grid-template-columns:1fr;gap:30px}
  .syn-plan.feat{transform:none}
  .syn-bonus{grid-template-columns:1fr}
  .syn-badges{grid-template-columns:1fr 1fr}
  .syn-posts{grid-template-columns:1fr}
  .syn-guarantee{grid-template-columns:1fr;text-align:center}
  .syn-guarantee img{margin:0 auto}
  .syn-foot-grid{grid-template-columns:1fr}
  .syn-links{display:none;position:absolute;top:62px;left:0;right:0;flex-direction:column;background:#fff;border-bottom:1px solid var(--line);padding:14px 20px;gap:4px;align-items:stretch}
  .syn-links.show{display:flex}
  .syn-links a:not(.syn-btn){padding:12px}
  .syn-links .syn-btn{text-align:center;margin-top:6px}
  .syn-burger{display:flex}
}
@media(max-width:560px){
  .syn-steps{grid-template-columns:1fr}
  .syn-layers{grid-template-columns:1fr}
  .syn-badges{grid-template-columns:1fr 1fr}
  .section{padding:46px 0}
}