:root{--bg:#f5f7f6;--paper:#fff;--ink:#142019;--muted:#5e6d65;--line:#dce3df;--green:#16945f;--green-dark:#0e6d45;--blue:#315fa8;--coral:#c85647;--yellow:#f2c94c;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:88px}body{margin:0;background:var(--bg);color:var(--ink);font:15.5px/1.65 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;letter-spacing:0}a{color:inherit}button,a{font:inherit}.ar{display:none}html[lang=ar]{direction:rtl}html[lang=ar] .en{display:none!important}html[lang=ar] .ar{display:revert}html[lang=ar] body{font-family:"Noto Sans Arabic",Tahoma,Arial,sans-serif}
.guide-top{height:68px;position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:28px;padding:0 clamp(16px,4vw,48px);background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.guide-brand{display:flex;align-items:center;gap:9px;text-decoration:none;font-size:18px}.guide-brand img{border-radius:7px}.guide-top nav{display:flex;align-items:center;gap:22px;flex:1}.guide-top nav a{text-decoration:none;color:var(--muted);font-size:13.5px;font-weight:650}.guide-top nav a:hover{color:var(--ink)}.guide-actions{display:flex;align-items:center;gap:8px}.guide-actions button,.guide-actions a{min-height:40px;border-radius:7px;padding:9px 13px;border:1px solid var(--line);background:var(--paper);font-weight:700;text-decoration:none;cursor:pointer}.guide-actions .primary{background:var(--ink);border-color:var(--ink);color:#fff}
.guide-shell{width:min(1220px,100%);margin:0 auto;display:grid;grid-template-columns:210px minmax(0,820px);gap:clamp(32px,6vw,88px);padding:46px 28px 100px}.guide-shell aside{position:sticky;top:104px;align-self:start;display:flex;flex-direction:column;border-inline-start:2px solid var(--line)}.aside-label{margin:0 0 12px;padding-inline-start:16px;color:var(--muted);font-size:12px;font-weight:800;text-transform:uppercase}.guide-shell aside a{display:flex;align-items:center;gap:10px;min-height:42px;padding:8px 14px;text-decoration:none;color:var(--muted);border-inline-start:2px solid transparent;margin-inline-start:-2px}.guide-shell aside a:hover{color:var(--ink);border-color:var(--green)}.guide-shell aside b{font-size:11px;color:var(--green)}main{min-width:0}section{padding:62px 0;border-bottom:1px solid var(--line)}section:first-child{padding-top:22px}.eyebrow,.section-no{margin:0 0 12px;color:var(--green-dark);font-size:12px;font-weight:850;text-transform:uppercase}.intro h1{max-width:780px;margin:0;font-size:48px;line-height:1.08;letter-spacing:0}.lead{max-width:720px;margin:22px 0 0;color:var(--muted);font-size:19px;line-height:1.6}.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:38px;border-block:1px solid var(--line)}.principles div{display:flex;align-items:center;gap:12px;padding:18px 14px;border-inline-end:1px solid var(--line);font-weight:750}.principles div:last-child{border:0}.principles b{display:grid;place-items:center;width:28px;height:28px;background:var(--ink);color:var(--paper);border-radius:50%;font-size:12px}h2{margin:0 0 14px;font-size:30px;line-height:1.2;letter-spacing:0}h3{letter-spacing:0}section>p:not(.section-no):not(.source-note){max-width:760px;color:var(--muted)}
.code-panel{position:relative;margin:26px 0;background:#101512;color:#e9f2ed;border-radius:8px;overflow:hidden}.code-panel pre{margin:0;padding:24px 24px 70px;white-space:pre-wrap;overflow-wrap:anywhere;font:13px/1.7 ui-monospace,SFMono-Regular,Menlo,monospace;direction:ltr;text-align:left}.code-panel pre.ar{direction:rtl;text-align:right}.copy-btn{position:absolute;bottom:16px;inset-inline-end:16px;min-height:38px;padding:8px 13px;border:1px solid #3a4b42;border-radius:6px;background:#1e2a24;color:#fff;font-weight:750;cursor:pointer}.do-dont{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:8px;overflow:hidden}.do-dont>div{padding:20px}.do-dont>div+div{border-inline-start:1px solid var(--line)}.do-dont h3{margin:0 0 6px;color:var(--green-dark);font-size:15px}.do-dont>div+div h3{color:var(--coral)}.do-dont p{margin:0;color:var(--muted)}
.model-table,.price-table{margin:28px 0;border-block:1px solid var(--line)}.model-table>div,.price-table>div{display:grid;grid-template-columns:1.25fr 1fr 1.3fr;gap:14px;align-items:center;min-height:56px;padding:10px 12px;border-bottom:1px solid var(--line)}.model-table>div:last-child,.price-table>div:last-child{border:0}.model-table .table-head,.price-table .table-head{min-height:42px;background:#edf1ef;color:var(--muted);font-size:11px;font-weight:850;text-transform:uppercase}.model-table code{font-size:12px;overflow-wrap:anywhere;color:var(--blue)}.steps{list-style:none;margin:28px 0;padding:0;border-top:1px solid var(--line)}.steps li{display:grid;grid-template-columns:34px 1fr;gap:10px;align-items:start;padding:14px 4px;border-bottom:1px solid var(--line)}.steps b{color:var(--green)}.source-note{font-size:12px;color:var(--muted)}.source-note a{color:var(--blue)}
.price-table>div{grid-template-columns:1.4fr 1fr .8fr}.price-table b{color:var(--green-dark)}.money-flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:12px;align-items:center;margin:30px 0}.money-flow>div{min-height:106px;display:flex;flex-direction:column;justify-content:center;padding:18px;border:1px solid var(--line);border-radius:8px;background:var(--paper)}.money-flow b{font-size:26px;color:var(--green-dark)}.money-flow span:not(.flow-arrow){color:var(--muted);font-size:13px}.flow-arrow{color:var(--green);font-size:22px}.notice{border-inline-start:4px solid var(--yellow);padding:16px 18px;background:#fff9df}.notice p{margin:5px 0 0;color:#675d32}.example-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:26px}.example-card{display:flex;align-items:center;gap:14px;min-width:0;padding:14px;border:1px solid var(--line);border-radius:8px;background:var(--paper);text-decoration:none}.example-card:hover{border-color:var(--green)}.example-card img{width:62px;height:62px;object-fit:cover;border-radius:8px;background:#e7ece9}.example-card span{min-width:0}.example-card b,.example-card small{display:block}.example-card small{margin-top:3px;color:var(--muted);line-height:1.4}
.install-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:26px 0}.install-grid>div{padding:20px;border-top:3px solid var(--blue);background:var(--paper)}.install-grid>div+div{border-color:var(--coral)}.install-grid h3{margin:0 0 10px}.install-grid ol{margin:0;padding-inline-start:20px;color:var(--muted)}.check-title{margin:38px 0 12px}.checklist{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:0 24px}.checklist li{position:relative;padding:12px 0 12px 28px;border-bottom:1px solid var(--line);color:var(--muted)}html[dir=rtl] .checklist li{padding:12px 28px 12px 0}.checklist li:before{content:"✓";position:absolute;inset-inline-start:3px;color:var(--green);font-weight:900}.final-cta{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-top:44px;padding:26px;background:var(--ink);color:var(--paper);border-radius:8px}.final-cta p{max-width:560px;margin:6px 0 0;color:#b9c7bf}.final-cta a{flex:none;padding:11px 16px;border-radius:6px;background:var(--paper);color:var(--ink);font-weight:800;text-decoration:none}#copyToast{position:fixed;z-index:40;bottom:24px;left:50%;transform:translate(-50%,20px);padding:10px 14px;border-radius:7px;background:#101512;color:#fff;opacity:0;pointer-events:none;transition:.2s}#copyToast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:900px){.guide-top nav{display:none}.guide-shell{display:block;padding:24px 18px 80px}.guide-shell aside{position:static;overflow-x:auto;flex-direction:row;border:0;border-bottom:1px solid var(--line);margin:0 -18px;padding:0 18px 12px}.aside-label{display:none}.guide-shell aside a{flex:none;border:0;margin:0;padding:8px 12px}.guide-shell aside a b{display:none}section{padding:48px 0}.intro h1{font-size:38px}.principles{grid-template-columns:1fr}.principles div{border-inline-end:0;border-bottom:1px solid var(--line)}.principles div:last-child{border:0}}
@media(max-width:620px){.guide-top{height:62px;padding:0 12px;gap:10px}.guide-brand strong{display:none}.guide-actions .primary{display:none}.intro h1{font-size:33px}.lead{font-size:17px}.do-dont,.example-grid,.install-grid,.checklist{grid-template-columns:1fr}.do-dont>div+div{border-inline-start:0;border-top:1px solid var(--line)}.model-table>div,.price-table>div{grid-template-columns:1fr;gap:4px;padding:14px 8px}.table-head{display:none!important}.money-flow{grid-template-columns:1fr}.flow-arrow{transform:rotate(90deg);text-align:center}.final-cta{align-items:flex-start;flex-direction:column}.final-cta a{width:100%;text-align:center}}
@media(prefers-color-scheme:dark){:root{--bg:#0d120f;--paper:#141b17;--ink:#edf4f0;--muted:#a1afa7;--line:#2a352f;--green:#34d28c;--green-dark:#52dfa0;--blue:#83aaf0;--coral:#ed8d80;--yellow:#d6ad3b;color-scheme:dark}.guide-top{background:rgba(13,18,15,.96)}.guide-actions button{background:var(--paper);color:var(--ink)}.guide-actions .primary{background:#edf4f0;color:#101512;border-color:#edf4f0}.model-table .table-head,.price-table .table-head{background:#18221c}.notice{background:#2b2717}.notice p{color:#d3c785}.final-cta{background:#1a241e}.final-cta a{background:#edf4f0;color:#101512}}