:root{--bg:#F3EDE6;--ink:#1A140F;--ink2:#6B5E52;--line:rgba(26,20,15,.10);--coral:#FF6B3D;--green:#1FAE4B;--red:#E0352B;
--glass:rgba(255,255,255,.58);--glass2:rgba(255,255,255,.38);--r:28px}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:'Inter Tight',system-ui,-apple-system,sans-serif;color:var(--ink);background:var(--bg);min-height:100vh;line-height:1.45;-webkit-font-smoothing:antialiased}
.bgfx{position:fixed;inset:0;z-index:-1;overflow:hidden;background:linear-gradient(180deg,#F6F0E9,#EDE3D8)}
.bgfx i{position:absolute;border-radius:50%;filter:blur(70px);opacity:.75}
.bgfx i:nth-child(1){width:420px;height:420px;background:#E9B48E;top:-120px;left:-120px}
.bgfx i:nth-child(2){width:380px;height:380px;background:#C9A58A;top:30%;right:-160px}
.bgfx i:nth-child(3){width:360px;height:360px;background:#FFC7A6;bottom:-140px;left:10%}
.wrap{max-width:640px;margin:0 auto;padding:20px 16px 56px}
.top{display:flex;align-items:center;gap:12px;padding:10px 6px 22px}
.av{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#FFB35C,#FF6B3D);display:grid;place-items:center;color:#fff;font-weight:800;font-size:17px;box-shadow:inset 0 2px 0 rgba(255,255,255,.6)}
.top b{display:block;font-size:17px;letter-spacing:-.01em}.top small{color:var(--ink2);font-size:13px}
.top a.f{margin-left:auto}
.g{background:linear-gradient(165deg,rgba(255,255,255,.72),var(--glass) 50%,rgba(255,255,255,.62));backdrop-filter:blur(22px) saturate(1.4);-webkit-backdrop-filter:blur(22px) saturate(1.4);
 border-radius:var(--r);box-shadow:0 24px 60px -28px rgba(70,40,15,.45),inset 0 1.5px 0 #fff,inset 0 0 0 1px rgba(255,255,255,.6);padding:22px;margin-bottom:14px;position:relative}
.kick{font:600 12px/1 'JetBrains Mono',ui-monospace,monospace;letter-spacing:.08em;text-transform:uppercase;color:var(--ink2)}
h1{font-size:clamp(32px,8vw,44px);line-height:1.02;letter-spacing:-.035em;font-weight:800;margin:10px 0 10px}
h1 em,.ser{font-family:'Instrument Serif',serif;font-style:italic;font-weight:400;letter-spacing:-.01em;color:#C4532B}
h2{font-size:21px;letter-spacing:-.02em;font-weight:750;margin-bottom:10px;display:flex;align-items:center;gap:10px}
p.lead{color:var(--ink2);font-size:16px}
.n{width:28px;height:28px;border-radius:9px;background:var(--ink);color:#fff;display:inline-grid;place-items:center;font:700 13px/1 'JetBrains Mono',monospace;flex:none}
.msg{background:#E7FBD9;border-radius:20px 20px 20px 6px;padding:14px 16px;font-size:16px;white-space:pre-wrap;margin:8px 0 10px;box-shadow:0 8px 20px -14px rgba(0,60,20,.5)}
.msg.plain{background:rgba(255,255,255,.75)}
.btn{text-decoration:none;appearance:none;border:0;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 18px;border-radius:999px;font:700 15px/1 'Inter Tight',sans-serif;
 background:#fff;color:var(--ink);box-shadow:0 10px 24px -12px rgba(40,24,8,.55),inset 0 -2px 5px rgba(0,0,0,.06),inset 0 1.5px 0 #fff;transition:transform .15s}
.btn:active{transform:scale(.96)}.btn.dk{background:var(--ink);color:#fff;box-shadow:0 10px 24px -12px rgba(0,0,0,.6)}
.btn.ok{background:var(--green);color:#fff}
ul.ck{list-style:none}ul.ck li{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);font-size:16px}ul.ck li:last-child{border:0}
ul.ck li:before{content:'';flex:none;width:22px;height:22px;margin-top:1px;border-radius:50%;background:var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12.5 4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/14px no-repeat}
ul.x li:before{background:var(--red) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round'%3E%3Cpath d='M7 7l10 10M17 7 7 17'/%3E%3C/svg%3E") center/12px no-repeat}
.tag{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:6px 12px;font-weight:700;font-size:13px;background:rgba(255,255,255,.7)}
.tag.r{background:rgba(224,53,43,.12);color:var(--red)}.tag.g{background:rgba(31,174,75,.14);color:#15893A}
.cta{background:var(--ink);color:#FFF8EF}.cta p{color:rgba(255,248,239,.7)}.cta h2{color:#fff}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.logo{width:34px;height:34px;border-radius:11px;background:#fff;display:grid;place-items:center;box-shadow:inset 0 1px 0 #fff,0 6px 14px -8px rgba(0,0,0,.4)}.logo img{width:20px;height:20px;object-fit:contain}
a{color:inherit}
.grid{display:grid;gap:12px}
.kit{display:flex;align-items:center;gap:14px;text-decoration:none;padding:18px}
.kit b{display:block;font-size:18px;letter-spacing:-.02em}.kit small{color:var(--ink2);font-size:14px}.kit .go{margin-left:auto;font-size:22px;opacity:.4}
.foot{text-align:center;color:var(--ink2);font-size:13px;margin-top:22px}
/* calculator */
.fields{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.fld{background:rgba(255,255,255,.7);border-radius:18px;padding:10px 14px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.8)}
.fld label{display:block;font-size:12.5px;color:var(--ink2);font-weight:600}
.fld .in{display:flex;align-items:baseline;gap:4px}.fld .in span{color:var(--ink2);font-weight:700}
.fld input{width:100%;border:0;background:transparent;font:750 22px/1.3 'Inter Tight',sans-serif;color:var(--ink);outline:none;padding:2px 0}
.res{display:grid;gap:4px}.rl{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px dashed var(--line);font-size:15.5px}.rl b{font-family:'JetBrains Mono',monospace;font-weight:600}
.big{font-size:54px;font-weight:900;letter-spacing:-.05em;line-height:1}
.verdict{border-radius:18px;padding:12px 14px;font-weight:700;margin-top:12px}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(80px);background:var(--ink);color:#fff;padding:12px 18px;border-radius:999px;font-weight:700;transition:transform .3s,opacity .3s;z-index:9;opacity:0;pointer-events:none}
.toast.on{transform:translateX(-50%) translateY(0);opacity:1}
@media (max-width:380px){.fields{grid-template-columns:1fr}}