:root{--g:#1F6B57;--g-d:#17513f;--g-soft:#e9f2ee;--ink:#17201d;--mut:#5d6964;--line:#e3e1da;--paper:#fbfaf7;--card:#fff;--warn:#8a4b0f;--warn-bg:#fdf3e4;--err:#a3271c;--r:12px;--font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
p,li,.hint,.lead{text-wrap:pretty}
h1,h2,h3{text-wrap:balance}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--paper);line-height:1.65;font-size:16px}
a{color:var(--g)}
img{max-width:100%}
h1,h2,h3{line-height:1.25;margin:0 0 .5em;letter-spacing:-.01em}
p{margin:0 0 1em}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.narrow{max-width:720px}
/* nav */
.nav{position:sticky;top:0;z-index:20;background:rgba(251,250,247,.94);border-bottom:1px solid var(--line);backdrop-filter:saturate(1.4) blur(6px)}
.nav .wrap{display:flex;align-items:center;gap:16px;min-height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.1rem;color:var(--ink);text-decoration:none;min-height:44px}
.nav .links a.btn{color:#fff;padding:8px 16px}
footer.site a{display:inline-block;padding:10px 2px}
.brand img{width:32px;height:32px;border-radius:8px}
.nav .links{display:flex;gap:18px;margin-left:auto;align-items:center}
.nav .links a{color:var(--ink);text-decoration:none;font-size:.95rem;padding:10px 2px}
.nav .links a:hover{color:var(--g)}
.nav .links .hide-s{display:none}
@media(min-width:760px){.nav .links .hide-s{display:inline}}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 20px;border-radius:10px;border:1px solid var(--g);background:var(--g);color:#fff;font:inherit;font-weight:600;text-decoration:none;cursor:pointer;line-height:1.2}
.btn:hover{background:var(--g-d)}
.btn.ghost{background:transparent;color:var(--g)}
.btn.ghost:hover{background:var(--g-soft)}
.btn.small{min-height:40px;padding:6px 14px;font-size:.92rem}
.btn.danger{background:var(--err);border-color:var(--err)}
.btn[disabled]{opacity:.55;cursor:default}
.nav .btn{min-height:42px;padding:8px 16px}
.linkbtn{background:none;border:0;padding:8px 0;color:var(--g);font:inherit;text-decoration:underline;cursor:pointer;min-height:40px}
/* hero */
.hero{padding:56px 0 64px}
.hero .grid{display:grid;gap:48px}
@media(min-width:960px){.hero .grid{grid-template-columns:1fr 1.05fr;align-items:center}.hero{padding:88px 0 96px}}
.hero h1{font-size:clamp(2rem,5.4vw,3.1rem);font-weight:800}
.hero .sub{font-size:1.12rem;color:var(--mut);max-width:34em}
.cta{display:flex;flex-wrap:wrap;align-items:center;gap:14px 18px;margin-top:28px}
.cta .note{color:var(--mut);font-size:.95rem}
.eyebrow{display:inline-block;font-size:.85rem;font-weight:600;color:var(--g);background:var(--g-soft);padding:4px 12px;border-radius:99px;margin-bottom:18px}
/* product screen */
.screen{background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:0 1px 2px rgba(0,0,0,.04),0 18px 40px -24px rgba(23,32,29,.35);overflow:hidden}
.screen .bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line);font-size:.85rem;color:var(--mut)}
.screen .bar i{width:9px;height:9px;border-radius:50%;background:#e2ded5;display:inline-block}
.screen .bar span{margin-left:8px}
.screen .body{padding:20px}
.sample{font-size:.75rem;font-weight:600;color:var(--warn);background:var(--warn-bg);border-radius:99px;padding:2px 10px;margin-left:auto}
.party-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 14px;margin-bottom:14px}
.party-head h3,.party-head .title{margin:0;font-size:1.1rem;font-weight:700}
.party-head .meta{color:var(--mut);font-size:.9rem}
.progress{height:8px;border-radius:99px;background:var(--g-soft);overflow:hidden;margin:6px 0 16px}
.progress b{display:block;height:100%;background:var(--g);border-radius:99px}
.diet{border-left:4px solid #d9932f;padding:4px 0 4px 14px;margin-bottom:18px;font-size:.93rem}
.diet strong{display:block;font-size:.9rem;color:var(--warn);margin-bottom:4px}
.diet ul{margin:0;padding-left:18px}
.counts{display:grid;gap:14px}
@media(min-width:560px){.counts{grid-template-columns:repeat(3,1fr)}}
.counts h4,.counts .ch{margin:0 0 6px;font-size:.9rem;font-weight:700;color:var(--mut)}
.counts ol{list-style:none;margin:0;padding:0}
.counts li{display:flex;gap:10px;padding:5px 0;border-bottom:1px dashed var(--line);font-size:.93rem}
.counts li b{min-width:1.6em;text-align:right;color:var(--g)}
.who{width:100%;border-collapse:collapse;font-size:.9rem;margin-top:16px}
.who th,.who td{text-align:left;padding:7px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.who th{font-size:.85rem;color:var(--mut);font-weight:600}
.tablewrap{overflow-x:auto}
/* sections */
section{padding:56px 0}
@media(min-width:960px){section{padding:80px 0}}
section h2{font-size:clamp(1.5rem,3.6vw,2.1rem);font-weight:800}
.lead{color:var(--mut);font-size:1.06rem;max-width:40em;margin-bottom:36px}
.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.steps{list-style:none;margin:0;padding:0;display:grid;gap:18px;counter-reset:s}
@media(min-width:760px){.steps{grid-template-columns:repeat(3,1fr)}}
.steps li{counter-increment:s;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.steps li::before{content:counter(s);display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--g);color:#fff;font-weight:700;margin-bottom:14px}
.steps li p{margin:0;font-weight:600;font-size:1.05rem}
.feats{display:grid;gap:18px}
@media(min-width:760px){.feats{grid-template-columns:1fr 1fr}}
.feat{border:1px solid var(--line);border-radius:var(--r);padding:26px;background:var(--paper)}
.feat svg{width:30px;height:30px;color:var(--g);margin-bottom:10px}
.feat h3{font-size:1.1rem}
.feat p{margin:0;color:var(--mut)}
.price{max-width:480px;border:2px solid var(--g);border-radius:18px;padding:32px;background:#fff}
.price .amt{font-size:3rem;font-weight:800;line-height:1}
.price .amt small{font-size:1rem;font-weight:500;color:var(--mut)}
.price ul{padding-left:0;list-style:none;margin:22px 0 26px}
.price li{padding:6px 0 6px 28px;position:relative}
.price li::before{content:"";position:absolute;left:4px;top:12px;width:12px;height:7px;border-left:2px solid var(--g);border-bottom:2px solid var(--g);transform:rotate(-45deg)}
.faq details{border-bottom:1px solid var(--line);padding:4px 0}
.faq summary{cursor:pointer;font-weight:600;padding:14px 0;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::after{content:"+";color:var(--g);font-size:1.3rem;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--mut);margin:0 0 16px}
.band{background:var(--g);color:#fff;text-align:center}
.band h2{color:#fff}
.band p{opacity:.9}
.band .btn{background:#fff;color:var(--g);border-color:#fff}
.band .btn:hover{background:var(--g-soft)}
/* demo */
.demo{display:grid;gap:24px}
@media(min-width:960px){.demo{grid-template-columns:1fr 340px 1fr;align-items:start}}
.demo textarea{min-height:170px}
.phone{border:10px solid var(--ink);border-radius:30px;background:#fff;padding:18px 16px;max-width:340px;width:100%;margin:0 auto}
.phone h4{margin:0 0 4px}
.muted{color:var(--mut)}
.small{font-size:.88rem}
/* footer */
footer.site{padding:40px 0 48px;border-top:1px solid var(--line);font-size:.92rem;color:var(--mut)}
footer.site .wrap{display:flex;flex-wrap:wrap;gap:12px 28px;align-items:center}
footer.site a{color:var(--mut)}
footer.site .syng-legal-links a{display:inline-block;padding:8px 2px}
/* forms */
label{display:block;font-weight:600;font-size:.95rem;margin:0 0 6px}
input[type=text],input[type=email],input[type=password],input[type=date],input[type=number],textarea,select{width:100%;font:inherit;font-size:16px;padding:11px 13px;border:1px solid #cfcbc1;border-radius:10px;background:#fff;color:var(--ink)}
input:focus,textarea:focus,select:focus{outline:2px solid var(--g);outline-offset:1px;border-color:var(--g)}
.field{margin-bottom:16px}
.hint{font-size:.86rem;color:var(--mut);margin-top:4px}
.msg{padding:10px 14px;border-radius:10px;margin:12px 0;font-size:.95rem}
.msg.err{background:#fbeceb;color:var(--err)}
.msg.ok{background:var(--g-soft);color:var(--g-d)}
.msg.warn{background:var(--warn-bg);color:var(--warn)}
.msg:empty{display:none}
/* auth */
.auth{max-width:440px;margin:56px auto 72px;padding:0 20px}
.auth .card{padding:28px}
.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;margin-bottom:22px}
.card h2{font-size:1.25rem}
/* app */
.app{padding:32px 0 64px}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.row.between{justify-content:space-between}
.grid2{display:grid;gap:0 16px}
@media(min-width:640px){.grid2{grid-template-columns:1fr 1fr}}
.plist{list-style:none;margin:0;padding:0}
.plist li{border-top:1px solid var(--line)}
.plist a{display:grid;grid-template-columns:1fr auto;gap:4px 14px;padding:14px 4px;color:var(--ink);text-decoration:none}
.plist a:hover{background:var(--paper)}
.plist .st{font-size:.8rem;font-weight:600;padding:2px 10px;border-radius:99px;background:var(--g-soft);color:var(--g-d);align-self:center}
.plist .st.lock{background:#eee;color:#555}
.course-edit{border:1px solid var(--line);border-radius:10px;padding:14px;margin-bottom:12px;background:var(--paper)}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0 12px}
.chips span{background:var(--g-soft);color:var(--g-d);border-radius:99px;padding:3px 12px;font-size:.9rem}
.linkbox{display:flex;gap:8px;flex-wrap:wrap}
.linkbox input{flex:1 1 260px}
.banner{border-radius:12px;padding:12px 16px;margin-bottom:20px;display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between}
.choice{display:flex;gap:12px;align-items:center;border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:8px;cursor:pointer;font-weight:500;background:#fff;min-height:48px}
.choice:has(input:checked){border-color:var(--g);background:var(--g-soft)}
.choice input{width:20px;height:20px;accent-color:var(--g);margin:0}
fieldset{border:0;padding:0;margin:0 0 18px}
legend{font-weight:700;font-size:1rem;color:var(--ink);margin-bottom:8px;padding:0}
.hidden{display:none!important}
.guest{max-width:520px;margin:0 auto;padding:28px 18px 56px}
@media print{.noprint,.nav,footer.site{display:none!important}body{background:#fff;font-size:12pt}.screen,.card{box-shadow:none;border:0;padding:0}}
@media (prefers-reduced-motion:no-preference){.btn{transition:background .15s}}