:root{color-scheme:dark;--bg:#131313;--panel:#1c1c1c;--line:#363636;--text:#f2f2f3;--muted:#b8bbc1;--accent:#9ecaff;font-family:Inter,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);line-height:1.65}html[lang=ar]{font-family:Cairo,Arial,sans-serif}button,input,select{font:inherit}button,a,input,select{outline-offset:4px} :focus-visible{outline:2px solid var(--accent)}a{color:inherit;text-decoration:none}button{cursor:pointer}header{border-bottom:1px solid var(--line);padding:18px max(24px,calc((100vw - 1200px)/2));display:flex;justify-content:space-between;gap:20px;align-items:center}.brand{font-size:25px;font-weight:900;letter-spacing:-2px}.brand span{color:var(--accent)}header nav{display:flex;gap:22px;font-size:13px}.wrap{max-width:1200px;margin:auto;padding:44px 24px 70px}.eyebrow{color:var(--accent);font-size:12px;letter-spacing:.13em}h1{font-size:clamp(30px,5vw,58px);line-height:1.2;letter-spacing:-.04em;margin:12px 0 20px}h1 span{color:var(--accent)}h2{font-size:20px;line-height:1.5;margin:0 0 18px}p{color:var(--muted);margin:0 0 16px}.intro{max-width:740px}.layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,1fr);gap:28px;margin-top:36px;align-items:start}.block{border-top:1px solid var(--line);padding:26px 0}fieldset{margin:0;padding:0;border:0}legend{font-size:20px;font-weight:700;margin-bottom:18px}.step{color:var(--accent);font-size:12px;margin-inline-end:12px}.systems{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.system{position:relative;cursor:pointer}.system input{position:absolute;top:12px;inset-inline-end:12px;accent-color:var(--accent)}.system span{display:block;border:1px solid var(--line);border-radius:8px;padding:30px 12px 16px;min-height:122px}.system b{display:block;font-size:14px}.system small{color:var(--muted);font-size:11px;display:block;margin-top:7px}.system input:checked+span{background:#9ecaff0e;border-color:var(--accent)}.system input:focus-visible+span{outline:2px solid var(--accent)}.helper{font-size:12px;margin:14px 0 0}.note{padding:14px 16px;background:#9ecaff0a;border-inline-start:2px solid var(--accent);font-size:13px;margin:18px 0 0}.controls{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:20px}.controls button{background:transparent;border:1px solid var(--line);border-radius:30px;color:var(--text);padding:7px 13px;font-size:12px}.controls button:hover{border-color:var(--accent)}.select{display:flex;gap:16px;justify-content:space-between;align-items:center;margin-bottom:16px}.select select{max-width:60%;padding:10px;border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:6px}.counts{display:grid;grid-template-columns:1fr 1fr;gap:12px}.count{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px;border:1px solid var(--line);border-radius:7px;font-size:13px}.count input{width:62px;min-height:40px;border:1px solid #555;background:#131313;color:white;border-radius:4px;padding:6px;text-align:center}.count small{color:var(--muted);display:block;font-size:11px}.check{display:flex;gap:10px;align-items:start;font-size:13px;margin:15px 0}.check input{margin-top:7px;accent-color:var(--accent)}aside{position:sticky;top:24px;border:1px solid #4b515a;border-radius:12px;background:linear-gradient(140deg,#20252a,#1b1b1b 65%);padding:25px}.result-label{font-size:13px;color:var(--accent);margin:18px 0 0}.total{font-size:clamp(30px,4vw,43px);font-weight:700;letter-spacing:-.035em;line-height:1.3;margin:8px 0}.currency{font-size:13px;color:var(--muted)}.summary{font-size:12px;line-height:1.9}.money-row{display:flex;justify-content:space-between;gap:15px;font-size:13px;padding:9px 0;border-bottom:1px solid var(--line)}.money-row span:last-child{white-space:nowrap}.missing{background:#c8963710;border:1px solid #8a693a;border-radius:6px;padding:12px;font-size:12px;margin-top:18px;color:#f3d6a3}.missing ul{padding-inline-start:20px;margin:7px 0 0}.missing p{color:inherit;margin:0}.cta{display:block;text-align:center;background:var(--accent);color:#131313;font-weight:700;border-radius:6px;padding:15px;margin-top:20px;font-size:14px}.cta:hover{background:#b8d9ff}.caption{font-size:11px;text-align:center;margin-top:10px}.details{margin-top:18px;border-top:1px solid var(--line);padding-top:16px;font-size:12px}.details summary{cursor:pointer}.details ul{padding-inline-start:18px}.details li{margin:8px 0}.error{color:#ffc3ad;font-size:12px}.reset{border:0;background:none;color:var(--muted);text-decoration:underline;padding:10px 0}.disclaimer{font-size:11px;margin-top:20px}.footer{border-top:1px solid var(--line);padding-top:24px;margin-top:24px;font-size:12px;display:flex;justify-content:space-between;gap:20px}[hidden]{display:none!important}html[lang=ar] h1{letter-spacing:0}html[lang=ar] .eyebrow{letter-spacing:.03em}@media(max-width:850px){.layout{grid-template-columns:1fr}aside{position:static}.wrap{padding-top:28px}.systems{grid-template-columns:repeat(3,1fr)}}@media(max-width:470px){.systems{grid-template-columns:repeat(2,1fr)}.counts{grid-template-columns:1fr}.wrap{padding-inline:18px}header{padding:15px 18px}.select{display:block}.select select{display:block;max-width:100%;width:100%;margin-top:10px}aside{padding:20px}.footer{display:block}.total{font-size:36px}}