:root{--bg:#f7f8fa;--card:#fff;--text:#1f2933;--muted:#616e7c;--line:#e4e7eb;--brand:#0f766e;--brand-d:#115e59}@media (prefers-color-scheme:dark){:root{--bg:#10151a;--card:#182026;--text:#e6ebef;--muted:#9aa5b1;--line:#2b353d;--brand:#14b8a6;--brand-d:#2dd4bf}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Cairo,system-ui,Segoe UI,Tahoma,sans-serif;line-height:1.8}a{color:var(--brand);text-decoration:none}.container{max-width:880px;margin:0 auto;padding:16px}.header{border-bottom:1px solid var(--line);background:var(--card)}.header .container{display:flex;justify-content:space-between;align-items:center}.logo{font-weight:800;font-size:1.2rem}h1{font-size:1.6rem;margin:.5rem 0}h2{font-size:1.2rem;margin:1.5rem 0 .5rem}.lead{color:var(--muted);margin:0 0 1rem}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:24px}textarea{width:100%;min-height:150px;padding:10px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--text);font:inherit;resize:vertical}.btn{display:inline-block;margin:8px 0 0 8px;padding:8px 18px;border:0;border-radius:8px;background:var(--brand);color:#fff;font:inherit;cursor:pointer}.btn:hover{background:var(--brand-d)}.btn.alt{background:transparent;color:var(--brand);border:1px solid var(--brand)}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));grid-gap:12px;gap:12px}.tool{display:block;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px;color:var(--text)}.tool:hover{border-color:var(--brand)}.tool b{display:block;color:var(--brand)}.tool span{color:var(--muted);font-size:.9rem}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));grid-gap:10px;gap:10px;margin-top:12px}.stat{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:8px;text-align:center}.stat b{font-size:1.4rem;color:var(--brand)}.opts label,.stat b{display:block}details{border-bottom:1px solid var(--line);padding:8px 0}summary{cursor:pointer;font-weight:600}.footer{color:var(--muted);text-align:center;padding:24px;font-size:.9rem}.related a{margin-left:12px}input[type=date],input[type=number],input[type=text],select{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--text);font:inherit}label{display:block;font-size:.9rem;color:var(--muted);margin-bottom:2px}.opts label{color:var(--text)}.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));grid-gap:10px;gap:10px;margin-bottom:10px}.tabs{display:flex;gap:6px;margin-bottom:12px}.tab{flex:1 1;padding:8px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--text);font:inherit;cursor:pointer}.tab.on{background:var(--brand);color:#fff;border-color:var(--brand)}.result{background:var(--bg);border:1px dashed var(--brand);border-radius:8px;padding:12px;font-size:1.1rem}.note{color:var(--muted);font-size:.9rem;margin:8px 0 0}.err{color:#c0392b;margin-top:8px}.btn:disabled{opacity:.5;cursor:not-allowed}.cert-wrap{overflow-x:auto;margin-bottom:8px}.cert-print{background:#fff;color:#1f2933;border:10px double;padding:10px;min-width:640px;aspect-ratio:1.414/1;direction:rtl}.cert-inner{border:2px solid;height:100%;padding:28px 36px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px}.cert-org{font-size:1.2rem;font-weight:600;color:#52606d}.cert-title{font-size:2.4rem;font-weight:800;margin:6px 0}.cert-lead{font-size:1.15rem}.cert-name{font-size:2rem;font-weight:800;border-bottom:2px dotted #9aa5b1;padding:0 30px 4px;min-width:50%}.cert-reason{font-size:1.1rem;max-width:80%}.cert-foot{margin-top:auto;width:100%;display:flex;justify-content:space-between;align-items:flex-end;font-size:1rem}.cert-sign{text-align:center;min-width:180px;border-top:1px solid #9aa5b1;padding-top:4px;font-weight:600}.cert-role{font-weight:400;font-size:.9rem;color:#52606d}@page{size:A4 landscape;margin:0}@media print{body *{visibility:hidden}.cert-print,.cert-print *{visibility:visible}.cert-print{position:fixed;inset:0;margin:0;min-width:0;width:100vw;height:100vh;aspect-ratio:auto;border-width:14px}}