:root{--bg: #fafbfe;--bg-elev: #fff;--surface: #f0f3fa;--surface-2: #eaf0fb;--surface-3: #dee6f6;--border: #dfe5ef;--border-strong: #becadd;--text: #17243b;--text-muted: #56647a;--text-faint: #63718a;--accent: #3155d9;--accent-strong: #2443b5;--accent-soft: #e8edff;--accent-ink: #fff;--danger: #aa3046;--font-sans: "Manrope", "IBM Plex Sans Arabic", sans-serif;--font-display: var(--font-sans);--font-arabic: "IBM Plex Sans Arabic", sans-serif;--font-mono: ui-monospace, monospace;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.375rem;--text-2xl: clamp(1.5rem, 3vw, 2.25rem);--text-3xl: clamp(2rem, 4vw, 3.2rem);--leading-tight: 1.08;--leading-snug: 1.25;--leading-body: 1.75;--tracking-tight: -.045em;--tracking-mono: 0;--container: 1180px;--container-narrow: 800px;--gutter: clamp(1.25rem, 5vw, 4rem);--section-y: clamp(4rem, 8vw, 7rem);--nav-h: 88px;--radius-sm: 8px;--radius: 16px;--radius-lg: 28px;--ease: cubic-bezier(.22, 1, .36, 1);--dur: .18s;--z-nav: 100;--z-preloader: 200;color-scheme:light}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 24px);-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:1rem;line-height:1.75;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,p,ul,ol,figure,blockquote,dl,dd{margin:0}ul,ol{padding:0;list-style:none}img,svg,video{display:block;max-width:100%;height:auto}button,input,textarea,select{font:inherit;color:inherit}button{cursor:pointer;border:0;background:none;padding:0}a{color:inherit;text-decoration:none}a,button{-webkit-tap-highlight-color:transparent}a:hover{color:var(--accent)}::selection{background:#cdd8ff;color:var(--text)}:focus-visible{outline:3px solid var(--accent);outline-offset:5px;border-radius:3px}h1,h2,h3,h4{font-weight:650;letter-spacing:var(--tracking-tight);line-height:1.2}h2{font-size:var(--text-3xl)}h3{font-size:1.5rem}.container,.content-block{width:min(100%,var(--container));margin-inline:auto;padding-inline:var(--gutter)}.content-block{padding-block:var(--section-y)}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:2rem;margin-bottom:2.5rem}.section-heading p{max-width:35ch;color:var(--text-muted);font-size:.95rem}.section-heading h2{max-width:17ch}.lead{font-size:var(--text-lg);line-height:1.8;color:var(--text-muted);max-width:57ch}.muted{color:var(--text-muted)}.mono{font-size:var(--text-sm)}.btn{display:inline-flex;justify-content:center;align-items:center;gap:.8rem;min-height:48px;padding:.8rem 1.5rem;border:1px solid var(--border-strong);border-radius:50px;font-size:.875rem;font-weight:650;transition:background var(--dur),color var(--dur)}.btn:hover{background:var(--surface-2);color:var(--accent)}.btn--primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn--primary:hover{background:var(--accent-strong);color:#fff}.btn svg,.link-arrow svg{width:18px;height:18px;flex:none}.link-arrow{display:inline-flex;align-items:center;gap:.65rem;font-size:.875rem;font-weight:650;color:var(--accent)}.link-arrow:hover{text-decoration:underline;text-underline-offset:5px}.chip{display:inline-flex;padding:.25rem .7rem;background:var(--surface);border-radius:6px;font-size:.75rem;color:var(--text-muted)}.readout{display:grid;gap:.25rem}.readout__label{color:var(--text-muted);font-size:.8rem}.readout__value{font-size:.95rem}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:1rem;left:1rem;z-index:300;background:#fff;padding:.7rem 1rem;border-radius:8px;transform:translateY(-160%)}.skip-link:focus{transform:none}.prose{color:var(--text-muted);font-size:1.0625rem;line-height:1.85;overflow-wrap:anywhere}.prose>*+*{margin-top:1.25em}.prose h1,.prose h2,.prose h3,.prose h4,.prose strong{color:var(--text)}.prose h2{font-size:1.8rem;margin-top:2.5em}.prose h3{font-size:1.3rem;margin-top:1.8em}.prose h4{font-size:1.1rem}.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:4px}.prose ul,.prose ol{padding-inline-start:1.4em}.prose ul{list-style:disc}.prose ol{list-style:decimal}.prose li+li{margin-top:.5em}.prose blockquote{border-inline-start:3px solid var(--accent);padding-inline-start:1.2rem}.prose pre{overflow-x:auto;padding:1.2rem;background:var(--surface);border-radius:10px}.prose code{font-family:var(--font-mono);font-size:.85em;background:var(--surface);padding:.15em .35em;border-radius:4px}.prose pre code{padding:0}.prose img{border-radius:12px}.prose table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse}.prose td,.prose th{padding:.7rem;border-bottom:1px solid var(--border);text-align:start}.prose hr{border:0;border-top:1px solid var(--border);margin-block:2rem}.prose--no-lead-heading>h2:first-child{display:none}.prose--no-lead-heading>h2:first-child+*{margin-top:0}:lang(ar),[dir=rtl] .prose{font-family:var(--font-arabic);letter-spacing:0;line-height:1.95}@media (max-width: 650px){:root{--nav-h: 72px}.section-heading{display:block}.section-heading p{margin-top:1rem}}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}