/* VITAFLOW design system v2 — premium light biotech */
:root{
  --brand:#0e7c6b; --brand2:#12a58c; --blue:#1a6fc4; --violet:#7c4dbe;
  --ink:#0d1f1a; --mut:#54655f; --bg:#f4faf7; --card:#ffffff;
  --line:#dfeae5; --warn:#a3541a; --danger:#a32d2d; --ok:#2f7d43;
  --r:18px;
  --shadow:0 1px 2px rgba(13,31,26,.05),0 10px 30px -8px rgba(13,31,26,.10);
  --shadow2:0 2px 6px rgba(13,31,26,.07),0 24px 48px -12px rgba(14,124,107,.18);
  --grad:linear-gradient(120deg,var(--brand) 0%,var(--brand2) 55%,var(--blue) 130%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.66 -apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);
  background:
    radial-gradient(900px 480px at 85% -140px, rgba(18,165,140,.14), transparent 65%),
    radial-gradient(760px 420px at -10% 12%, rgba(26,111,196,.10), transparent 62%),
    radial-gradient(680px 420px at 108% 46%, rgba(124,77,190,.07), transparent 60%),
    var(--bg);
  background-attachment:fixed;
}
h1,h2,h3{font-family:Georgia,"Times New Roman",serif;font-weight:600;line-height:1.22;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(30px,5.2vw,50px)} h2{font-size:clamp(22px,3.5vw,31px);margin-top:1.7em} h3{font-size:19px}
p{margin:.4em 0 1em} a{color:var(--brand)} .mut{color:var(--mut)} .small{font-size:14px}
code{background:#eaf3ef;border-radius:6px;padding:1px 7px;font-size:13.5px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.wrap{max-width:1060px;margin:0 auto;padding:0 20px}

/* nav */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:22px;padding:13px 20px;
  margin:0 auto;flex-wrap:wrap;background:rgba(255,255,255,.72);
  backdrop-filter:blur(14px) saturate(1.4);-webkit-backdrop-filter:blur(14px) saturate(1.4);
  border-bottom:1px solid rgba(223,234,229,.8)}
.nav .logo{font-family:Georgia,serif;font-size:22px;font-weight:700;color:var(--ink);text-decoration:none;letter-spacing:.05em}
.nav .logo b{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav a{text-decoration:none;color:var(--ink);font-size:15.5px}
.nav a:hover,.nav a.on{color:var(--brand)}
.nav .cta{margin-left:auto}

/* hero */
.hero{position:relative;padding:74px 0 36px}
.hero[data-fx]{min-height:340px}
.hero .fxc{position:absolute;inset:-40px -20px 0 -20px;z-index:0;pointer-events:none;opacity:.9}
.hero>*{position:relative;z-index:1}
.hero .kicker{display:inline-block;color:var(--brand);font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  font-size:12.5px;background:rgba(18,165,140,.10);border:1px solid rgba(18,165,140,.25);
  border-radius:999px;padding:5px 14px;margin-bottom:14px}
.hero p.lead{font-size:19.5px;max-width:44em;color:var(--mut)}

/* buttons */
.btn{display:inline-block;background:var(--grad);color:#fff;border:none;border-radius:999px;
  padding:13px 28px;font-size:16px;font-weight:650;text-decoration:none;cursor:pointer;
  box-shadow:0 6px 18px -6px rgba(14,124,107,.55);transition:transform .18s,box-shadow .18s,filter .18s}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 26px -8px rgba(14,124,107,.6);filter:brightness(1.05)}
.btn:active{transform:translateY(0)}
.btn.sec{background:rgba(255,255,255,.8);color:var(--brand);border:1.5px solid var(--brand);box-shadow:none}
.btn.sec:hover{background:#eef8f4}
.btn.sm{padding:8px 18px;font-size:14px}
.btnrow{display:flex;gap:14px;flex-wrap:wrap;margin:20px 0;align-items:center}

/* layout blocks */
.grid{display:grid;gap:18px} @media(min-width:760px){.grid.c2{grid-template-columns:1fr 1fr}.grid.c3{grid-template-columns:1fr 1fr 1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;
  box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s,border-color .22s;
  transform-style:preserve-3d;will-change:transform}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow2);border-color:rgba(18,165,140,.35)}
.card h3{margin-top:0}
.badge{display:inline-block;background:#e2f3ee;color:var(--brand);border-radius:999px;padding:3px 12px;font-size:13px;font-weight:650}
.badge.warn{background:#f9ecdd;color:var(--warn)} .badge.blue{background:#e3edf9;color:var(--blue)}
.badge.danger{background:#f9e3e3;color:var(--danger)} .badge.ok{background:#e4f2e7;color:var(--ok)}
.steps{counter-reset:s;display:grid;gap:12px;margin:20px 0;padding:0;list-style:none}
.steps li{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:15px 18px 15px 62px;position:relative;
  box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.steps li:hover{transform:translateX(4px);box-shadow:var(--shadow2)}
.steps li::before{counter-increment:s;content:counter(s);position:absolute;left:16px;top:14px;width:30px;height:30px;
  border-radius:50%;background:var(--grad);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-size:14px;box-shadow:0 4px 10px -3px rgba(14,124,107,.5)}
table{border-collapse:collapse;width:100%;background:var(--card);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow)}
th,td{padding:11px 15px;text-align:left;border-bottom:1px solid var(--line);font-size:15px}
th{background:#ecf5f1;font-weight:650}
tr:last-child td{border-bottom:none}
.bar{height:10px;border-radius:6px;background:#e6efeb;overflow:hidden;margin-top:6px}
.bar i{display:block;height:100%;background:var(--grad);border-radius:6px;transition:width 1s cubic-bezier(.2,.8,.2,1)}
.foot{margin:72px auto 0;padding:28px 20px 44px;border-top:1px solid var(--line);color:var(--mut);font-size:13.5px}

/* forms */
input,textarea,select{width:100%;padding:12px 15px;border:1.5px solid var(--line);border-radius:12px;font:inherit;background:#fff;
  transition:border-color .15s,box-shadow .15s}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,165,140,.14)}
label{font-weight:650;font-size:14px;display:block;margin:14px 0 6px}
label.chk{display:flex;gap:10px;align-items:flex-start;font-weight:400;margin:10px 0}
label.chk input{width:auto;margin-top:4px}
.note{background:#fdf6ec;border:1px solid #f0dfc0;border-radius:var(--r);padding:14px 18px;font-size:14.5px}
.note.demo{background:#eef3fb;border-color:#cfdff5}

/* journey */
.jhead{background:linear-gradient(115deg,var(--brand),color-mix(in srgb,var(--brand) 55%,#0b2c3a));color:#fff;padding:13px 20px;
  box-shadow:0 4px 18px -8px rgba(13,31,26,.4)}
.jhead .in{max-width:760px;margin:0 auto;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.jhead .bname{font-family:Georgia,serif;font-size:19px;font-weight:700}
.jhead .co{opacity:.85;font-size:13px}
.jhead .demo{margin-left:auto;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.25);border-radius:999px;padding:2px 12px;font-size:12.5px}
.jprog{max-width:760px;margin:16px auto 0;padding:0 20px}
.jprog .bar{height:7px;background:#e2ece8}
.jprog .bar i{background:linear-gradient(90deg,var(--brand),var(--brand2));box-shadow:0 0 10px rgba(18,165,140,.5)}
.jprog .small{margin-top:4px}
.jbody{max-width:760px;margin:0 auto;padding:10px 20px}
.chat{display:flex;flex-direction:column;gap:10px;margin:16px 0}
.msg{max-width:85%;padding:12px 17px;border-radius:18px;font-size:15px;box-shadow:var(--shadow)}
.msg.ai{background:var(--card);border:1px solid var(--line);border-bottom-left-radius:5px}
.msg.me{background:linear-gradient(120deg,var(--brand),var(--brand2));color:#fff;align-self:flex-end;border-bottom-right-radius:5px}
.result{display:flex;align-items:center;gap:14px;padding:13px 0;border-bottom:1px solid var(--line)}
.result:last-child{border:none}
.result .nm{flex:1 1 40%} .result .val{font-weight:700;font-size:18px;white-space:nowrap}
.range{flex:1 1 40%;min-width:140px}
.range .track{position:relative;height:8px;border-radius:5px;background:linear-gradient(90deg,#eab7b7 0 30%,#bfe3c8 30% 100%)}
.range .dot{position:absolute;top:-4px;width:16px;height:16px;border-radius:50%;background:var(--ink);border:2.5px solid #fff;
  box-shadow:0 1px 6px rgba(0,0,0,.4);transform:translateX(-50%)}
.sku{display:flex;justify-content:space-between;gap:14px;align-items:baseline;padding:13px 0;border-bottom:1px solid var(--line)}
.sku:last-child{border-bottom:none}

/* tabs, kpi */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}
.tabs button{border:1.5px solid var(--line);background:rgba(255,255,255,.85);border-radius:999px;padding:9px 20px;
  font:inherit;font-size:14.5px;cursor:pointer;transition:all .16s}
.tabs button:hover{border-color:var(--brand)}
.tabs button.on{background:var(--grad);border-color:transparent;color:#fff;box-shadow:0 5px 14px -5px rgba(14,124,107,.55)}
.tabpane{display:none}.tabpane.on{display:block}
.kpi{display:flex;gap:16px;flex-wrap:wrap;margin:14px 0}
.kpi .k{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px 20px;min-width:150px;
  box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.kpi .k:hover{transform:translateY(-3px);box-shadow:var(--shadow2)}
.kpi .k b{font-size:23px;display:block;font-family:Georgia,serif}

/* reveal on scroll (fx.js добавляет .on) */
.rv{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.8,.2,1)}
.rv.on{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  .rv{opacity:1;transform:none;transition:none}
  .card,.steps li,.btn,.kpi .k{transition:none}
}
@media(max-width:600px){.result{flex-wrap:wrap}.range{flex-basis:100%}.hero{padding-top:48px}}