/* AhmadOS: a 1-bit desktop, deliberately single-theme (ink on paper).
   "Invert colours" in Control Panel is the dark mode. Colour exists only inside All Intelligence. */
:root{
  --ink:#000; --paper:#fff; --grey:#808080;
  --ai-1:#ff5e3a; --ai-2:#ffbe0b; --ai-3:#14b8a6; --ai-4:#7c5cff;  /* All Intelligence only */
  --ui:"Pixelify Sans","Courier New",monospace;
  --read:"Literata",Georgia,"Times New Roman",serif;
  --hand:"Dancing Script","Brush Script MT",cursive;
  --menu-h:26px;
  color-scheme:light;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{height:100%;margin:0;background:var(--paper);color:var(--ink)}
body{font:15px/1.35 var(--ui);overflow:hidden;-webkit-font-smoothing:none;user-select:none;-webkit-user-select:none}
html.invert body{filter:invert(1)}
html.invert .rbody img,html.invert .colour .px-colour,html.invert .px-colour{filter:invert(1)}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
:focus-visible{outline:2px dotted var(--ink);outline-offset:2px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- boot ---------- */
.boot{position:fixed;inset:0;z-index:1000;background:var(--paper);display:grid;place-items:center;cursor:pointer}
.boot svg{width:min(78vw,620px);height:auto;overflow:visible}
.boot text{font:700 150px var(--hand);fill:transparent;stroke:var(--ink);stroke-width:2.4;stroke-dasharray:1400;stroke-dashoffset:1400;
  animation:write 2.6s ease-in-out forwards, ink .6s 2.3s ease forwards}
@keyframes write{to{stroke-dashoffset:0}}
@keyframes ink{to{fill:var(--ink)}}
.boot .hint{position:absolute;bottom:calc(28px + env(safe-area-inset-bottom,0px));left:0;right:0;text-align:center;font-size:14px;opacity:0;animation:fadein .5s 3s forwards}
@keyframes fadein{to{opacity:1}}
.boot.out{animation:dissolve .45s steps(6) forwards}
@keyframes dissolve{to{opacity:0;visibility:hidden}}
@media (prefers-reduced-motion:reduce){.boot text{animation:none;stroke-dashoffset:0;fill:var(--ink)}.boot .hint{animation:none;opacity:1}.boot.out{animation:none;opacity:0;visibility:hidden}}

/* ---------- menu bar ---------- */
.menubar{position:fixed;top:0;left:0;right:0;height:calc(var(--menu-h) + env(safe-area-inset-top,0px));padding-top:env(safe-area-inset-top,0px);
  padding-left:max(8px,env(safe-area-inset-left,0px));padding-right:max(10px,env(safe-area-inset-right,0px));
  background:var(--paper);border-bottom:2px solid var(--ink);display:flex;align-items:stretch;z-index:500}
.menubar>.m{position:relative}
.menubar>.m>button{height:var(--menu-h);padding:0 11px;font-weight:600;font-size:16px}
.menubar>.m>button[aria-expanded="true"]{background:var(--ink);color:var(--paper)}
.glyph{display:inline-grid;place-items:center;width:17px;height:17px;border:2px solid currentColor;font-size:12px;line-height:1;font-weight:700}
.menubar .right{margin-left:auto;display:flex;align-items:center;gap:14px;font-size:15px}
.menubar .right .glyph{width:15px;height:15px;font-size:10px}
.dropdown{position:absolute;top:var(--menu-h);left:0;min-width:220px;background:var(--paper);border:2px solid var(--ink);box-shadow:3px 3px 0 var(--ink);padding:3px 0;z-index:600}
.dropdown button{display:flex;width:100%;justify-content:space-between;gap:24px;padding:3px 16px;text-align:left;font-size:15px;white-space:nowrap}
.dropdown button:hover,.dropdown button:focus-visible{background:var(--ink);color:var(--paper);outline:none}
.dropdown button[disabled]{color:var(--grey);cursor:default;background:none}
.dropdown button .k{opacity:.8}
.dropdown hr{border:0;border-top:2px dotted var(--ink);margin:3px 0}
.dropdown .check::before{content:"✓ ";} .dropdown .nocheck::before{content:"\00a0\00a0 ";}

/* ---------- desktop ---------- */
.desktop{position:fixed;left:0;right:0;bottom:0;top:calc(var(--menu-h) + 2px + env(safe-area-inset-top,0px));overflow:hidden;background:var(--paper)}
.wallpaper{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:30% 75%;image-rendering:pixelated;image-rendering:crisp-edges}
.desktop.night .wallpaper,.desktop.night .live{filter:invert(1)}
.speaker{display:grid;place-items:center;width:22px;height:22px}
.speaker img{width:16px;height:16px;image-rendering:pixelated}
.pocket .home{pointer-events:none}
.pocket .home .app,.pocket .home .dock{pointer-events:auto}
.desktop.kicking .home .app,.desktop.kicking .home .dock{pointer-events:none}
.kickhint{position:absolute;left:12px;right:12px;top:12px;z-index:5;display:flex;align-items:center;gap:10px;justify-content:space-between;background:var(--paper);border:2px solid var(--ink);box-shadow:3px 3px 0 var(--ink);padding:8px 12px;font-size:15px}
.desktop.kicking .home{opacity:0;pointer-events:none;transition:opacity .3s}
.pen{position:absolute;pointer-events:none;image-rendering:pixelated;image-rendering:crisp-edges}
.wallpaper.swap{animation:dissolve-in .5s steps(5)}
@keyframes dissolve-in{from{opacity:.2}to{opacity:1}}
.icon{position:absolute;width:108px;display:flex;flex-direction:column;align-items:center;gap:3px;text-align:center;touch-action:none}
.icon img{width:48px;height:48px;image-rendering:pixelated}
.icon span{background:var(--paper);padding:0 4px;font-size:13px;line-height:1.25;max-width:106px;overflow-wrap:anywhere}
.icon.sel img{filter:invert(1)}
.icon.sel span{background:var(--ink);color:var(--paper)}
.icon.alias span{font-style:italic}

/* ---------- windows ---------- */
.win{position:absolute;background:var(--paper);border:2px solid var(--ink);box-shadow:2px 2px 0 var(--ink);display:flex;flex-direction:column;min-width:240px;min-height:150px;max-width:100%}
.titlebar{position:relative;flex:none;height:24px;border-bottom:2px solid var(--ink);display:flex;align-items:center;justify-content:center;cursor:grab;touch-action:none;
  background:repeating-linear-gradient(to bottom,var(--paper) 0 3px,var(--ink) 3px 4px);background-clip:content-box;padding:4px 3px}
.win:not(.front) .titlebar{background:var(--paper)}
.titlebar h2{margin:0;font:600 15px/24px var(--ui);background:var(--paper);padding:0 10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:72%}
.titlebar .close{position:absolute;left:8px;top:50%;width:14px;height:14px;margin-top:-7px;background:var(--paper);border:2px solid var(--ink)}
.win:not(.front) .titlebar .close{visibility:hidden}
.titlebar .close:active{background:var(--ink)}
.winfo{flex:none;display:flex;justify-content:space-between;gap:10px;padding:2px 10px;border-bottom:1px solid var(--ink);font-size:13px}
.wbody{flex:1;overflow:auto;position:relative;min-height:0;user-select:text;-webkit-user-select:text}
.grow{position:absolute;right:0;bottom:0;width:16px;height:16px;cursor:nwse-resize;border-left:2px solid var(--ink);border-top:2px solid var(--ink);background:var(--paper);touch-action:none}
.grow::after{content:"";position:absolute;right:2px;bottom:2px;width:7px;height:7px;border:1.5px solid var(--ink)}

/* folder contents */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:10px 6px;padding:12px 10px 22px}
.entry{display:flex;flex-direction:column;align-items:center;gap:4px;padding:2px;text-align:center;font-size:13.5px;line-height:1.25}
.entry img{width:48px;height:48px;image-rendering:pixelated}
.entry span{padding:0 3px;overflow-wrap:anywhere;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.entry.alias span{font-style:italic}
.entry.sel img{filter:invert(1)} .entry.sel span{background:var(--ink);color:var(--paper)}
.list{width:100%;border-collapse:collapse;font-size:14px}
.list th{position:sticky;top:0;background:var(--paper);text-align:left;font-weight:600;border-bottom:2px solid var(--ink);padding:4px 10px}
.list td{padding:3px 10px;border-bottom:1px dotted var(--ink);vertical-align:top}
.list td:last-child,.list th:last-child{white-space:nowrap;font-variant-numeric:tabular-nums}
.list tr.sel td{background:var(--ink);color:var(--paper)}
.list img{width:16px;height:16px;image-rendering:pixelated;vertical-align:-3px;margin-right:6px}
.list tr.alias td:first-child{font-style:italic}

/* All Intelligence: the one place colour lives */
.win.colour{border-color:var(--ink)}
.win.colour .titlebar{background:linear-gradient(90deg,var(--ai-1),var(--ai-2),var(--ai-3),var(--ai-4));background-clip:content-box}
.ai-intro{padding:14px 18px 4px;font-size:14px;max-width:60ch}
.ai-pair{display:flex;justify-content:center;gap:28px;flex-wrap:wrap;padding:12px 16px 24px}
.ai-pair .entry img{width:96px;height:96px}
.ai-pair .entry span{font-size:16px;font-weight:600}

/* dialogs, info, find, about */
.dialog{position:fixed;inset:0;z-index:900;display:grid;place-items:center;background:rgba(0,0,0,0)}
.dialog .box{background:var(--paper);border:2px solid var(--ink);box-shadow:4px 4px 0 var(--ink);outline:1px solid var(--ink);outline-offset:-6px;padding:20px 22px 16px;max-width:min(420px,calc(100vw - 32px));display:grid;grid-template-columns:auto 1fr;gap:14px 16px}
.dialog .box img{width:48px;height:48px;image-rendering:pixelated}
.dialog .box p{margin:0;font-size:15px;line-height:1.4}
.dialog .box .act{grid-column:1/-1;display:flex;justify-content:flex-end}
.btn{border:2px solid var(--ink);border-radius:10px;padding:3px 18px;background:var(--paper);font-weight:600;min-width:72px}
.btn.default{box-shadow:0 0 0 2px var(--paper),0 0 0 4px var(--ink)}
.btn:active{background:var(--ink);color:var(--paper)}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;padding:14px 16px;font-size:14px}
.kv dt{font-weight:600;text-align:right} .kv dd{margin:0;overflow-wrap:anywhere}
.find{padding:12px}
.find input{width:100%;font:15px var(--ui);border:2px solid var(--ink);padding:5px 8px;background:var(--paper);color:var(--ink);border-radius:0;user-select:text}
.find ul{list-style:none;margin:10px 0 0;padding:0}
.find li button{display:block;width:100%;text-align:left;padding:4px 6px;border-bottom:1px dotted var(--ink);font-size:14px}
.find li button:hover,.find li button:focus-visible{background:var(--ink);color:var(--paper);outline:none}
.find .yr{float:right;font-variant-numeric:tabular-nums}
.about{display:grid;grid-template-columns:120px minmax(0,1fr);gap:18px;padding:18px}
.about .portrait{width:120px;align-self:start;border:2px solid var(--ink);box-shadow:2px 2px 0 var(--ink);background:var(--paper);line-height:0}
.about .portrait img{width:100%;height:auto;image-rendering:pixelated;image-rendering:crisp-edges}
html.invert .about .portrait img{filter:invert(1)}
.about h3{margin:0 0 4px;font-size:22px}
.about .tag{margin:0 0 12px;font-size:15px}
.about p{margin:0 0 10px;font:15px/1.5 var(--read);user-select:text}
.about .specs{font-size:13.5px;border-top:2px dotted var(--ink);padding-top:8px;margin-top:6px;display:grid;grid-template-columns:auto 1fr;gap:3px 12px}
.about .specs b{text-align:right}
.about .draft{font-size:12px;border:1.5px dashed var(--ink);padding:3px 6px;display:inline-block;margin-bottom:8px}
.soon{padding:22px;text-align:center;font-size:15px}
.soon img{width:64px;height:64px;image-rendering:pixelated;display:block;margin:0 auto 10px}
.soon p{margin:6px auto;max-width:36ch}
.cp{padding:14px 16px;display:grid;gap:12px;font-size:15px}
.cp fieldset{border:2px solid var(--ink);padding:8px 12px;margin:0}
.cp legend{padding:0 6px;font-weight:600}
.cp label{display:flex;align-items:center;gap:8px;padding:2px 0;cursor:pointer}
.cp input{accent-color:var(--ink)}

/* ---------- reader: plain, no wallpaper ---------- */
.reader{position:fixed;left:0;right:0;bottom:0;top:calc(var(--menu-h) + 2px + env(safe-area-inset-top,0px));z-index:400;background:var(--paper);display:flex;flex-direction:column}
.rbar{flex:none;display:flex;align-items:center;gap:8px;padding:6px max(12px,env(safe-area-inset-left,0px));border-bottom:2px solid var(--ink);font-size:14px}
.rbar .path{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:center}
.rbar .btn{padding:2px 12px;min-width:0;font-size:14px;border-radius:8px}
.rbody{flex:1;overflow:auto;user-select:text;-webkit-user-select:text;padding:28px max(18px,env(safe-area-inset-left,0px)) 80px}
.rbody article{max-width:66ch;margin:0 auto;font:var(--rsize,18px)/1.65 var(--read)}
.rbody .eyebrow{font:14px var(--ui);margin:0 0 6px;letter-spacing:.02em}
.rbody h1{font:600 clamp(26px,4.4vw,38px)/1.15 var(--ui);margin:0 0 22px;text-wrap:balance}
.rbody h2,.rbody h3{font-family:var(--ui);font-weight:600;line-height:1.2;margin:1.6em 0 .5em}
.rbody img{max-width:100%;height:auto;display:block;margin:14px auto;border:2px solid var(--ink)}  /* photos keep their colour: the OS is 1-bit, memories are not */
.rbody figure{margin:18px 0}
.rbody figcaption{font:13.5px var(--ui);text-align:center}
.rbody a{color:inherit}
.rbody .prose,.rbody .prose *{text-align:left!important}
.rbody .prose [style*="font-size"]{font-size:inherit!important}
.rbody .standfirst{font-size:1.12em;font-style:italic}
.rbody .video a{display:inline-block;border:2px solid var(--ink);padding:6px 12px;text-decoration:none;font:600 15px var(--ui)}
.rbody .video a:hover{background:var(--ink);color:var(--paper)}
.rbody .yt{position:relative;aspect-ratio:16/9;border:2px solid var(--ink);margin:1.2em 0;background:#000}
.rbody .yt iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.rbody .yt-gone{border:2px dashed var(--ink);padding:10px 14px;font:15px var(--ui)}
.rbody blockquote{border-left:4px solid var(--ink);margin:1em 0;padding:.1em 1em}
.rbody table{border-collapse:collapse;display:block;overflow-x:auto}
.rbody td,.rbody th{border:1px solid var(--ink);padding:4px 8px}
.rbody .story-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px}
.rbody .endnote{margin-top:3em;border-top:2px dotted var(--ink);padding-top:10px;font:13.5px var(--ui)}

/* shut down */
.shutdown{position:fixed;inset:0;z-index:1000;background:#000;color:#fff;display:grid;place-items:center;text-align:center;cursor:pointer}
.shutdown h2{font:700 64px var(--hand);margin:0 0 10px}
.shutdown p{font:15px var(--ui);margin:0}

/* ---------- AhmadOS Pocket (phones) ---------- */
.pocket .desktop .icon{display:none}
.home{position:absolute;inset:0;display:flex;flex-direction:column;padding:16px max(14px,env(safe-area-inset-left,0px)) 0}
.home .apps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px 6px}
.home .app{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:12.5px;text-align:center}
.home .app img{width:56px;height:56px;image-rendering:pixelated;background:var(--paper);border:2px solid var(--ink);border-radius:14px;padding:6px}
.home .app span{background:var(--paper);padding:0 3px;line-height:1.2}
.home .dock{margin-top:auto;margin-bottom:calc(14px + env(safe-area-inset-bottom,0px));background:var(--paper);border:2px solid var(--ink);border-radius:18px;padding:10px 6px 8px;display:grid;grid-template-columns:repeat(4,1fr);box-shadow:3px 3px 0 var(--ink)}
.screen{position:fixed;left:0;right:0;bottom:0;top:calc(var(--menu-h) + 2px + env(safe-area-inset-top,0px));z-index:300;background:var(--paper);display:flex;flex-direction:column}
.sbar{flex:none;display:flex;align-items:center;gap:10px;padding:8px max(12px,env(safe-area-inset-left,0px));border-bottom:2px solid var(--ink)}
.sbar h2{margin:0;font-size:17px;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sbar .back{font-weight:600;font-size:16px;padding:2px 6px}
.sbody{flex:1;overflow:auto;padding-bottom:env(safe-area-inset-bottom,0px)}
.rows{list-style:none;margin:0;padding:0}
.rows li button{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:10px max(14px,env(safe-area-inset-left,0px));border-bottom:1px dotted var(--ink);font-size:15px}
.rows li button:active{background:var(--ink);color:var(--paper)}
.rows img{width:32px;height:32px;image-rendering:pixelated;flex:none}
.rows .t{flex:1;min-width:0} .rows .alias .t{font-style:italic}
.rows .m{font-size:13px;white-space:nowrap;font-variant-numeric:tabular-nums}
.screen.colour .sbar{background:linear-gradient(90deg,var(--ai-1),var(--ai-2),var(--ai-3),var(--ai-4))}
.screen.colour .sbar h2,.screen.colour .sbar .back{background:var(--paper);padding:0 6px;flex:none}
.pocket .menubar>.m>button{padding:0 7px;font-size:15px}
.pocket .dropdown{min-width:200px}
.pocket .dropdown button{padding:8px 16px;font-size:16px}
.sheet{position:fixed;inset:0;z-index:700;background:rgba(0,0,0,.25);display:flex;align-items:flex-end}
.sheet .panel{width:100%;max-height:80%;overflow:auto;background:var(--paper);border-top:2px solid var(--ink);padding:8px 0 calc(12px + env(safe-area-inset-bottom,0px))}
.sheet h3{margin:10px 16px 4px;font-size:13px;letter-spacing:.06em;text-transform:uppercase}
.sheet button{display:block;width:100%;text-align:left;padding:9px 16px;font-size:16px}
.sheet button:active{background:var(--ink);color:var(--paper)}
.sheet button[disabled]{color:var(--grey)}