@font-face{font-family:Vazirmatn;src:url('../fonts/vazirmatn-fa-arabic.woff2') format('woff2');font-style:normal;font-weight:400 700;font-display:swap;unicode-range:U+0600-06FF,U+0750-077F,U+08A0-08FF,U+2000-206F,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:Vazirmatn;src:url('../fonts/vazirmatn-latin.woff2') format('woff2');font-style:normal;font-weight:400 700;font-display:swap;unicode-range:U+0000-024F}
@font-face{font-family:'JetBrains Mono';src:url('../fonts/jetbrains-mono-latin-regular.woff2') format('woff2');font-style:normal;font-weight:400;font-display:swap}
:root{--background:#191816;--surface:#22201d;--text:#f3eee3;--muted:#bcb4a8;--border:#454039;--accent:#f28b58;--link:#f28b58;--code-background:#141311;--hover:#302c26;--subtle:#aaa193;--on-accent:#191816;--focus:#f28b58;color-scheme:dark;--s1:4px;--s2:8px;--s3:12px;--s4:16px;--s6:24px;--s8:32px;--s12:48px;--s16:64px;--s24:96px;--r1:8px;--r2:12px;--r3:16px;--pill:999px;--sans:Vazirmatn,Tahoma,sans-serif;--mono:'JetBrains Mono',monospace;}
:root[data-theme=light]{--background:#f3eee3;--surface:#faf7f0;--text:#111111;--muted:#625d55;--border:#d8d0c3;--accent:#d9541e;--link:#b63e12;--code-background:#e9e2d6;--hover:#e9e3d7;--subtle:#7b7368;--on-accent:#ffffff;--focus:#b63e12;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--background);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.9;-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit;color:inherit}button,a,input{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}a,button{ -webkit-tap-highlight-color:transparent}a:hover{color:var(--link)}:focus-visible{outline:2px solid var(--focus);outline-offset:5px}::selection{background:var(--link);color:var(--on-accent)}[hidden]{display:none!important}.shell{width:min(1200px,calc(100% - 96px));margin-inline:auto}.screen-reader-text,.skip-link:not(:focus){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:focus{position:fixed;inset-block-start:12px;inset-inline-start:12px;z-index:100000;background:var(--surface);padding:12px 24px;border:1px solid var(--focus);border-radius:var(--r1)}.icon{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;vertical-align:middle}.svg-sprite{position:absolute;width:0;height:0;overflow:hidden}.site-header{height:112px;display:flex;align-items:center;justify-content:space-between;border-block-end:1px solid var(--border)}.brand{display:flex;align-items:center;gap:24px}.brand>svg{width:110px;height:36px;display:block}.brand-caption{font-size:13px;color:var(--muted);padding-inline-start:24px;border-inline-start:1px solid var(--border)}.header-actions{display:flex;align-items:center;gap:24px;font-size:13px}.archive-link{display:flex;align-items:center;gap:12px}.archive-link .icon{width:16px}.header-divider{height:16px;border-inline-start:1px solid var(--border)}.mode-toggle{border:0;background:none;padding:10px 0;display:flex;align-items:center;gap:8px;color:var(--muted);min-width:74px;justify-content:center}.mode-toggle:hover{color:var(--text)}.mode-toggle .icon{width:18px;height:18px}.eyebrow{font-size:12px;font-weight:500;line-height:1.8;color:var(--muted);margin:0 0 20px;display:flex;align-items:center;gap:10px}.eyebrow>span{width:5px;height:5px;border-radius:50%;background:var(--accent)}h1,h2,h3,p{overflow-wrap:anywhere}h1,h2,h3{font-weight:600;margin-block-start:0}.search-box{display:flex;align-items:center;gap:16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r2);padding:10px 20px;min-height:72px;transition:border-color 160ms}.search-box:focus-within{border-color:var(--focus);outline:1px solid var(--focus);outline-offset:0}.search-box>.icon{color:var(--muted);width:24px;height:24px}.search-box input{border:0;outline:0;background:none;min-width:0;width:100%;font-size:17px;padding:8px 0;line-height:1.8}.search-box input::placeholder{color:var(--muted);opacity:1}.search-box input::-webkit-search-cancel-button{cursor:pointer}.search-submit{border:0;border-inline-start:1px solid var(--border);background:none;padding:8px 20px 8px 0;color:var(--muted);display:flex;align-items:center;min-height:40px}.search-submit:hover{color:var(--link)}.section-heading{display:flex;justify-content:space-between;align-items:center;margin-block-end:20px}.section-heading h2{font-size:19px;display:flex;align-items:center;gap:12px;margin:0}.note-count{font-size:12px;color:var(--muted);font-weight:400;border:1px solid var(--border);border-radius:var(--pill);padding:1px 9px;line-height:1.7}.section-aside{color:var(--muted);font-size:12px}.category-chips{display:flex;gap:8px;flex-wrap:wrap;padding-block-end:28px}.category-chips a{font-size:12px;line-height:1.8;padding:7px 13px;border:1px solid var(--border);border-radius:var(--pill);white-space:nowrap;transition:background 160ms,border-color 160ms}.category-chips a:hover{background:var(--hover);color:var(--text)}.category-chips a[aria-current=true]{color:var(--link);border-color:var(--link);background:var(--surface)}.note-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.note-card{display:flex;flex-direction:column;min-width:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--r2);padding:24px;transition:border-color 160ms,transform 160ms;min-height:286px}.note-card:hover{border-color:var(--subtle);transform:translateY(-2px)}.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-block-end:20px;font-size:11px}.category-label{color:var(--muted)}.level{display:flex;align-items:center;gap:5px;white-space:nowrap;color:var(--muted);font-size:11px}.level .icon{width:14px;height:14px;stroke-width:2}.level[data-level=basic] .icon{opacity:.65}.level[data-level=intermediate] .icon{opacity:.8}.card-title{font-size:20px;line-height:1.8;font-weight:600;margin:0 0 12px;letter-spacing:-.35px}.card-title a{display:block}.card-title a:hover{color:var(--link)}.card-summary{font-size:16px;line-height:2;color:var(--muted);margin:0 0 24px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.command-line{display:flex;align-items:center;gap:8px;min-height:42px;border:1px solid var(--border);border-radius:6px;padding:4px 6px 4px 12px;background:var(--code-background);margin-block:auto 16px}.command-line code{font:11px/1.8 var(--mono);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0;flex:1}.copy-button{display:flex;align-items:center;justify-content:center;width:30px;height:30px;border:0;background:none;flex-shrink:0;color:var(--muted);border-radius:4px}.copy-button:hover{background:var(--surface);color:var(--text)}.copy-button .icon{width:15px;height:15px}.card-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-block-start:auto;padding-block-start:4px}.card-tags{display:flex;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:11px;line-height:1.8}.card-tags a:before{content:'#';color:var(--subtle);margin-inline-end:2px}.sample-marker{font-size:10px;color:var(--muted);white-space:nowrap}.pagination{display:flex;justify-content:center;align-items:center;gap:8px;margin-block:40px 0;font-size:13px}.pagination a,.pagination span,.pagination button{display:flex;align-items:center;justify-content:center;min-width:36px;min-height:36px;padding:4px 12px;border:1px solid var(--border);border-radius:var(--r1);background:none}.pagination .current{color:var(--link);border-color:var(--link);background:var(--surface)}.pagination .dots{border:0}.pagination a:hover,.pagination button:hover{background:var(--hover)}.pagination button:disabled{opacity:.4;cursor:default}.results-status:not(.screen-reader-text){font-size:13px;color:var(--muted);margin-block:0 20px}.empty-state{text-align:center;padding:64px 24px;border:1px dashed var(--border);border-radius:var(--r2);color:var(--muted)}.empty-state>.icon{width:32px;height:32px;margin-block-end:16px}.empty-state h3{font-size:20px;color:var(--text);margin:0 0 8px}.empty-state p{margin:0;font-size:14px}.footer-mark{width:5px;height:5px;background:var(--accent)}.archive-main{padding-block-start:64px;min-height:55vh}.archive-heading{margin-block-end:40px}.archive-heading h1{font-size:32px;line-height:1.6;margin:0 0 16px}.archive-heading p{color:var(--muted);max-width:760px}.archive-main>.search-box{margin-block-end:32px}.reading-shell{width:min(760px,calc(100% - 48px));margin-inline:auto;padding-block-start:64px;min-height:55vh}.article-heading h1{font-size:36px;line-height:1.65;letter-spacing:-.7px;margin:28px 0 16px}.back-link{display:inline-flex;align-items:center;gap:10px;color:var(--muted);font-size:13px}.back-link .icon{transform:rotate(180deg);width:16px}.article-meta{font-size:13px;color:var(--muted)}.article-meta a{color:var(--link)}.short-answer{border-inline-start:3px solid var(--accent);border-radius:var(--r1);padding:24px;background:var(--surface);margin-block:32px}.short-answer .eyebrow{margin-block-end:8px}.short-answer p{margin:0;font-size:17px}.prose{font-size:18px;line-height:1.95;overflow-wrap:anywhere}.prose h2{font-size:25px;line-height:1.6;margin-block:40px 16px}.prose h3{font-size:21px;margin-block:32px 12px}.prose a{color:var(--link);text-decoration:underline;text-underline-offset:4px}.prose pre{direction:ltr;text-align:left;font:13px/1.8 var(--mono);background:var(--code-background);border:1px solid var(--border);border-radius:var(--r1);padding:20px;overflow-x:auto;max-width:100%}.prose code{font-family:var(--mono);font-size:.82em;unicode-bidi:isolate}.prose pre code{font-size:inherit}.prose p{margin-block:0 24px}.prose ul,.prose ol{padding-inline-start:24px}.prose img{max-width:100%;height:auto}.prose blockquote{margin-inline:0;border-inline-start:2px solid var(--border);padding-inline:24px;color:var(--muted)}.prose table{border-collapse:collapse;width:100%;font-size:14px}.prose th,.prose td{padding:12px;border:1px solid var(--border)}.error-page>h1{font-size:36px}.error-page>.search-box{margin-block:32px}.error-page>p{color:var(--muted)}
@media(min-width:1440px){.note-card{min-height:302px}}
@media(max-width:1050px){.shell{width:calc(100% - 64px)}.note-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.category-chips{gap:7px}.note-card{min-height:280px}.brand-caption{display:none}}
@media(max-width:650px){.shell{width:calc(100% - 40px)}.site-header{height:84px}.brand>svg{width:96px;height:32px}.header-actions{gap:14px}.header-divider{display:none}.archive-link{font-size:12px;gap:6px}.mode-toggle{min-width:24px;padding:12px 2px}.mode-toggle [data-mode-label]{display:none}.search-box{min-height:62px;padding:8px 14px;gap:10px}.search-box input{font-size:14px}.search-box>.icon{width:20px;height:20px}.search-submit{padding:6px 12px 6px 0}.section-heading{margin-block-end:16px}.section-heading h2{font-size:17px}.section-aside{display:none}.category-chips{flex-wrap:nowrap;overflow-x:auto;padding-block:2px 20px;scrollbar-width:thin;scrollbar-color:var(--border) transparent}.category-chips a{font-size:11px;padding:6px 11px}.note-grid{grid-template-columns:minmax(0,1fr);gap:14px}.note-card{padding:22px;min-height:260px}.card-title{font-size:19px}.card-summary{font-size:13px}.card-meta{margin-block-end:16px}.card-tags{font-size:11px}.command-line code{font-size:10px}.reading-shell{width:calc(100% - 40px);padding-block-start:40px}.article-heading h1{font-size:29px}.prose{font-size:17px}.short-answer{padding:20px}.short-answer p{font-size:16px}.archive-main{padding-block-start:40px}.archive-heading h1{font-size:27px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}.note-card:hover{transform:none}}

/* Keep the command baseline aligned even when titles wrap. */
.command-line+.card-bottom{margin-block-start:0}
@media(max-width:1050px){.category-chips{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:thin;scrollbar-color:var(--border) transparent;padding-block-start:2px}}

/* Search-first landing: keep the notebook just inside the first viewport. */
.home-header{height:80px;border:0;justify-content:flex-end}.home-header .header-actions{font-size:12px;color:var(--muted)}
.search-landing{min-height:60svh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding-block:24px 80px}
.landing-wordmark{width:clamp(230px,25vw,330px);margin:0 0 44px;line-height:0;font-weight:400}.landing-wordmark>svg{display:block;width:100%;height:auto}
.discovery{position:relative;width:100%;max-width:680px;margin:0;z-index:5}.discovery .search-box{border-radius:var(--r3);min-height:68px}.discovery .search-box:focus-within{outline:1px solid var(--focus);border-color:var(--focus)}
.input-shortcut{font:11px var(--mono);border:1px solid var(--border);color:var(--muted);border-radius:4px;padding:1px 6px}.search-box:focus-within .input-shortcut{visibility:hidden}
/* Keep metadata visually subordinate while preserving every action. */
.note-card .card-tags a:before{content:none}.note-card .card-tags{gap:12px;font-size:10px}.note-card .level .icon{display:none}.note-card .card-meta{margin-block-end:16px}.note-card .command-line{background:var(--code-background);border-color:var(--border)}
.site-footer{margin-block-start:72px;padding-block:32px;border-block-start:1px solid var(--border);color:var(--muted);font-size:11px}.footer-identity{display:flex;width:fit-content;align-items:center;gap:2px;margin:0 auto 28px;line-height:1}.footer-identity>svg{width:58px;height:auto}.footer-identity>span{font:11px var(--mono);white-space:nowrap}.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:24px}.footer-bottom p{display:flex;align-items:center;gap:10px;margin:0}.footer-bottom>a{display:flex;gap:7px;align-items:center}.footer-bottom .icon{width:14px;height:14px}
@media(max-width:650px){.home-header{height:72px}.search-landing{padding-block:16px 64px}.landing-wordmark{width:230px;margin-block-end:32px}.discovery .search-box{min-height:62px}.input-shortcut{display:none}.site-footer{margin-block-start:44px;padding-block:28px}.footer-bottom{flex-direction:column;gap:14px}.footer-identity{margin-block-end:24px}}

/* Server-rendered private panel affordance; anonymous markup omits it. */
.writer-panel-link{display:inline-flex;align-items:center;justify-content:center;min-width:36px;min-height:36px;color:var(--muted)}.writer-panel-link .icon{width:18px;height:18px}.writer-panel-link:hover{color:var(--link)}

.rights-line{font-size:10px;line-height:2;color:var(--muted);max-width:680px;margin:18px auto 0;text-align:center}.note-share{display:flex;align-items:center;flex-wrap:wrap;gap:14px;border-top:1px solid var(--border);margin-top:40px;padding-top:24px;font-size:11px;color:var(--muted)}.note-share button{display:inline-flex;align-items:center;gap:8px;background:none;border:0;padding:6px;color:inherit;font:inherit}.note-share button:hover{color:var(--link)}.note-share .icon{width:17px;height:17px}.short-link{font:11px var(--mono);overflow-wrap:anywhere}.author-title{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.author-title h1{margin:0}.author-socials{display:inline-flex;align-items:center;gap:12px}.author-socials a{display:inline-flex;color:var(--muted);padding:5px}.author-socials a:hover{color:var(--link)}.author-socials .icon{width:17px;height:17px}.author-bio{font-size:15px;color:var(--muted);max-width:640px}.note-section-callout{border-inline-start:2px solid var(--accent);padding-inline-start:20px}.note-error{direction:ltr;text-align:left;font-family:var(--mono)}

.site-footer .footer-identity{margin-block-end:8px}.site-footer .rights-line{font:10px/1.8 var(--mono);opacity:.45;letter-spacing:.025em;text-align:center;margin:0 auto 28px}

.related-notes{margin-top:48px;padding-top:32px;border-top:1px solid var(--border)}.related-notes>h2{font-size:18px}.related-notes .note-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.card-summary mark{background:color-mix(in srgb,var(--accent) 22%,transparent);color:var(--text);border-radius:2px;padding:0 .05em}@media(max-width:650px){.related-notes .note-grid{grid-template-columns:1fr}}