.ot-conv{
  --ink:#12161F; --ink-70:#3C4353; --ink-60:#5A6273; --ink-30:#9AA1AF;
  --line:#D9DDE3; --hair:#E8EAEE; --paper:#FFF; --wash:#F4F5F7;
  --ok:#0B6B45; --mevsim:#2F7A52; --focus:#1C5CFF;
  --gut:clamp(14px,3vw,28px);
  background:var(--wash);color:var(--ink);
  font-family:"Barlow",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;line-height:1.55;padding:18px 0 56px
}
.ot-conv *{box-sizing:border-box;border-radius:0}
.ot-conv a{color:inherit;text-decoration:none}
.ot-conv button,.ot-conv input{font:inherit;color:inherit}
.ot-conv :focus-visible{outline:2px solid var(--focus);outline-offset:2px}
.ot-conv [hidden]{display:none!important}
.ot-conv__crumb{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:13px;color:var(--ink-60);margin:0 0 18px}
.ot-conv__crumb a:hover{color:var(--ink);text-decoration:underline}
.ot-conv__hero{background:var(--paper);border:1px solid var(--line);padding:28px 28px 24px;margin-bottom:16px}
.ot-conv__kicker{margin:0 0 6px;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-60)}
.ot-conv__hero h1{margin:0 0 10px;font-size:var(--ot-page-title,26px);font-weight:600;letter-spacing:-.02em;line-height:1.15}
.ot-conv__hero p{margin:0;max-width:68ch;color:var(--ink-70);font-size:15.5px;line-height:1.6}
.ot-conv-board{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:16px;margin-bottom:28px;align-items:stretch}
.ot-conv-form,.ot-conv-result{background:var(--paper);border:1px solid var(--line);min-width:0}
.ot-conv-tabs{display:flex;border-bottom:1px solid var(--line)}
.ot-conv-tabs button{flex:1;height:48px;background:transparent;border:0;border-right:1px solid var(--line);font-weight:600;font-size:14.5px;color:var(--ink-60);cursor:pointer}
.ot-conv-tabs button:last-child{border-right:0}
.ot-conv-tabs button[aria-selected="true"]{color:var(--ink);box-shadow:inset 0 -2px 0 var(--ink);background:var(--paper)}
.ot-conv-tabs button:hover{background:var(--wash);color:var(--ink)}
.ot-conv-panel{padding:22px 22px 24px;display:flex;flex-direction:column;gap:14px}
.ot-conv-lead{margin:0;font-size:14px;color:var(--ink-60);line-height:1.5}
.ot-conv-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.ot-conv-form label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:500;color:var(--ink-70);min-width:0}
.ot-conv-form input{height:46px;border:1px solid var(--line);padding:0 12px;background:var(--paper);width:100%}
.ot-conv-form input:hover{border-color:var(--ink-30)}
.ot-conv-form input:focus{border-color:var(--ink);outline:none}
.ot-conv-optional{grid-column:1/-1}
.ot-conv-form button[type=submit]{height:46px;background:var(--ink);color:#fff;border:0;font-weight:600;font-size:15px;cursor:pointer}
.ot-conv-form button[type=submit]:hover{background:#000}
.ot-conv-result{padding:22px;display:flex;flex-direction:column;gap:12px}
.ot-conv-empty{margin:auto;color:var(--ink-60);text-align:center;max-width:28ch}
.ot-conv-size{font-family:"Barlow Semi Condensed",sans-serif;font-size:28px;font-weight:700;letter-spacing:.02em;margin:0}
.ot-conv-size--sub{font-size:20px;margin-top:4px}
.ot-conv-rows{display:grid;gap:0;border:1px solid var(--line)}
.ot-conv-rows div{display:grid;grid-template-columns:1fr auto;gap:12px;padding:11px 14px;border-bottom:1px solid var(--hair);align-items:baseline}
.ot-conv-rows div:last-child{border-bottom:0}
.ot-conv-rows span{color:var(--ink-60);font-size:13.5px}
.ot-conv-rows strong{font-size:16px;font-variant-numeric:tabular-nums}
.ot-conv-diff{border:1px solid var(--line);background:var(--wash);padding:12px 14px;font-size:13.5px;line-height:1.5;color:var(--ink-70)}
.ot-conv-diff b{color:var(--ink)}
.ot-conv-shop{display:inline-flex;align-items:center;justify-content:center;gap:8px;margin-top:auto;background:var(--ink);color:#fff;padding:12px 14px;font-weight:600;font-size:14.5px}
.ot-conv-shop:hover{background:#000}
.ot-conv__guide,.ot-conv__formula{background:var(--paper);border:1px solid var(--line);padding:24px;margin-bottom:16px}
.ot-conv h2{margin:0 0 10px;font-size:20px;font-weight:600}
.ot-conv__guide>p,.ot-conv__formula p{margin:0 0 16px;color:var(--ink-70)}
.ot-conv__sidewall{display:flex;align-items:baseline;justify-content:center;gap:8px;flex-wrap:wrap;background:var(--ink);color:#fff;padding:18px 16px;margin:0 0 8px;font-family:"Barlow Semi Condensed",sans-serif;letter-spacing:.04em}
.ot-conv__sidewall span{font-size:18px;font-weight:600;color:rgba(255,255,255,.55)}
.ot-conv__sidewall strong{font-size:32px;font-weight:700}
.ot-conv__sidewall em{font-size:18px;font-style:normal;font-weight:600;color:#9FDBBF;margin-left:6px}
.ot-conv__sidewall-cap{margin:0 0 16px!important;font-size:13px;color:var(--ink-60)!important}
.ot-conv__facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.ot-conv__facts>div{border:1px solid var(--line);padding:16px;background:var(--wash)}
.ot-conv__facts span{display:block;font-family:"Barlow Semi Condensed",sans-serif;font-size:28px;font-weight:700;letter-spacing:.02em;margin-bottom:4px}
.ot-conv__facts strong{display:block;font-size:14.5px;margin-bottom:6px}
.ot-conv__facts p{margin:0;font-size:13.5px;color:var(--ink-60);line-height:1.5}
.ot-conv__formula ol{margin:0 0 14px;padding-left:18px;color:var(--ink-70);display:grid;gap:8px}
.ot-conv__note{display:flex;gap:12px;align-items:flex-start;border:1px solid var(--ok);background:#E7F3EE;color:var(--ok);padding:16px 18px;margin-bottom:18px}
.ot-conv__note svg{flex:none;margin-top:2px}
.ot-conv__note strong{display:block;margin-bottom:4px;color:var(--ink)}
.ot-conv__note p{margin:0;font-size:13.5px;line-height:1.55;color:var(--ink-70)}
.ot-conv__cta{display:flex;flex-wrap:wrap;gap:10px}
.ot-conv a.ot-conv__btn,.ot-conv__btn{display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:#fff;padding:12px 16px;font-weight:600;font-size:14.5px}
.ot-conv a.ot-conv__btn:hover,.ot-conv__btn:hover{background:#000;color:#fff}
.ot-conv a.ot-conv__btn--ghost,.ot-conv__btn--ghost{background:var(--paper);color:var(--ink);border:1px solid var(--line)}
.ot-conv a.ot-conv__btn--ghost:hover,.ot-conv__btn--ghost:hover{background:var(--wash);border-color:var(--ink);color:var(--ink)}
@media(max-width:900px){
  .ot-conv-board,.ot-conv__facts{grid-template-columns:1fr}
  .ot-conv-fields{grid-template-columns:1fr}
  .ot-conv__hero,.ot-conv-panel,.ot-conv-result,.ot-conv__guide,.ot-conv__formula{padding:18px}
}
@media(prefers-reduced-motion:reduce){.ot-conv *{transition:none!important}}