.dlt-wrap,.dlt-wrap *{box-sizing:border-box}.dlt-wrap{--dlt-green:#059b8a;--dlt-green-dark:#057568;--dlt-bg:#f7fbfa;--dlt-border:#dbe9e6;--dlt-text:#172421;--dlt-muted:#66736f;--dlt-card:#ffffff;width:100%;margin:24px auto;color:var(--dlt-text);font-family:Vazir,Tahoma,Arial,sans-serif;line-height:1.8}.dlt-card{min-height:560px;border:1px solid var(--dlt-border);border-radius:24px;background:var(--dlt-card);padding:24px;box-shadow:0 12px 35px rgb(10 40 35/.06)}.dlt-card-head{display:flex;justify-content:space-between;gap:16px;border-bottom:1px solid var(--dlt-border);padding-bottom:16px;margin-bottom:18px}.dlt-card h3{margin:0 0 6px;font-size:22px;color:var(--dlt-text)}.dlt-card p{margin:0;color:var(--dlt-muted)}.dlt-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.dlt-field{display:grid;gap:7px}.dlt-field label{font-size:13px;font-weight:800;color:var(--dlt-text)}.dlt-field label b{color:#b42318;margin-right:4px}.dlt-field input,.dlt-field select{width:100%;min-height:46px;border:1px solid var(--dlt-border);border-radius:14px;padding:9px 12px;background:#fff;color:var(--dlt-text);font-family:inherit;font-size:14px;outline:0}.dlt-field input:focus,.dlt-field select:focus{border-color:var(--dlt-green);box-shadow:0 0 0 3px rgb(5 155 138/.12)}.dlt-actions{grid-column:1/-1;display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}.dlt-actions button{border:0;border-radius:14px;min-height:46px;padding:10px 18px;font-family:inherit;font-weight:800;cursor:pointer}.dlt-actions button[type=submit]{color:#fff;background:var(--dlt-green)}.dlt-actions .dlt-reset{color:var(--dlt-green-dark);background:rgb(5 155 138/.1)}.dlt-result{display:none;margin-top:22px;border:1px solid var(--dlt-border);border-radius:22px;padding:18px;background:var(--dlt-bg)}@media (max-width:640px){.dlt-wrap{margin:16px auto}.dlt-card{border-radius:20px;padding:16px}.dlt-form{grid-template-columns:1fr}.dlt-card-head{display:block}}.dlt-tool-code{display:inline-flex;align-self:flex-start;direction:ltr;color:var(--dlt-green-dark);background:rgb(5 155 138/.09);border:1px solid rgb(5 155 138/.17);padding:3px 9px;border-radius:999px;font-size:11px;font-weight:800;letter-spacing:.02em;margin-bottom:10px}.dlt-single-wrap{max-width:920px}.dlt-single-card{min-height:auto}.dlt-single-card .dlt-card-head{display:block}.dlt-single-card h2.dlt-tool-title{margin:0 0 6px;font-size:clamp(23px,3vw,34px);color:var(--dlt-text)}.dlt-back-link{display:inline-flex;align-items:center;margin-bottom:12px;color:var(--dlt-green-dark);background:rgb(5 155 138/.09);border:1px solid rgb(5 155 138/.17);border-radius:999px;padding:7px 13px;font-size:13px;font-weight:800;text-decoration:none!important}.dlt-method-box{margin:22px 0 0;padding:18px 20px;border:1px solid rgb(15 118 110/.16);border-radius:18px;background:linear-gradient(180deg,rgb(240 253 250/.82),rgb(255 255 255/.96));box-shadow:0 12px 28px rgb(15 23 42/.05)}.dlt-method-box h3{margin:0 0 10px;font-size:1.12rem;color:#0f766e}.dlt-formula,.dlt-method-box p{margin:0 0 12px;color:#334155;line-height:2}.dlt-formula{margin:12px 0;padding:12px 14px;border-radius:14px;background:#f8fafc;border:1px dashed rgb(15 118 110/.25);color:#0f172a;font-weight:700}.dlt-method-box ol,.dlt-method-box ul{margin:10px 20px 0 0;padding:0;color:#334155;line-height:2}.dlt-method-notes{color:#64748b!important}@media screen{body{direction:rtl;unicode-bidi:embed}}