/* ==========================================================
   iocast — editorial / swiss
   Flat colour only. No gradients, no glows, no shadows.
   ========================================================== */
:root{
  --paper:#f2f1ec;
  --ink:#121212;
  --ink-2:#4a4a46;
  --ink-3:#8a8983;
  --rule:#d6d4cc;
  --rule-strong:#121212;
  --tint:#e8e7e0;
  --signal:#ff4d00;          /* single accent */
  --on-signal:#121212;
  --code:#121212;
  --code-ink:#f2f1ec;

  --sans:"Inter Tight","Inter","Helvetica Neue","Segoe UI",Arial,sans-serif;
  --mono:"JetBrains Mono","IBM Plex Mono","Cascadia Code",ui-monospace,Consolas,monospace;
  --max:1360px;
  --gut:clamp(20px,4vw,56px);
  color-scheme:light;
}
html[data-theme=dark]{
  --paper:#111110;
  --ink:#ecebe6;
  --ink-2:#a9a8a1;
  --ink-3:#6c6b66;
  --rule:#2a2a27;
  --rule-strong:#ecebe6;
  --tint:#1a1a18;
  --code:#1a1a18;
  --code-ink:#ecebe6;
  color-scheme:dark;
}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased;font-feature-settings:"ss01","cv11"}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
img{max-width:100%;height:auto;display:block}
::selection{background:var(--signal);color:var(--on-signal)}
:focus-visible{outline:2px solid var(--signal);outline-offset:2px}
h1,h2,h3{margin:0;font-weight:600}
.mono{font-family:var(--mono);font-size:.78rem;letter-spacing:0;text-transform:uppercase}
kbd{font-family:var(--mono);font-size:.7rem;padding:1px 5px;border:1px solid var(--rule);color:var(--ink-3)}
.wrap{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:var(--gut)}
.skip{position:fixed;left:8px;top:-60px;z-index:99;background:var(--signal);color:var(--on-signal);padding:8px 12px}
.skip:focus{top:8px}
.label{margin:0;font-family:var(--mono);font-size:.75rem;font-weight:500;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-3)}
.label.link{color:var(--ink)}
.label.link:hover{color:var(--signal)}
.accent{color:var(--signal)}

/* ---------- header ---------- */
.top{position:sticky;top:0;z-index:40;background:var(--paper);border-bottom:1px solid var(--rule-strong)}
.top-row{display:flex;align-items:center;gap:32px;height:60px}
.logo{font-weight:700;font-size:1.15rem;letter-spacing:-.03em}
.logo-dot{color:var(--signal)}
.menu{display:flex;gap:28px}
.menu a{font-size:.95rem;position:relative;padding:4px 0}
.menu a::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--signal);transform:scaleX(0);transform-origin:left;transition:transform .25s ease}
.menu a:hover::after,.menu a[aria-current=page]::after{transform:scaleX(1)}
.tools{margin-left:auto;display:flex;align-items:stretch;height:100%}
.tool{display:flex;align-items:center;gap:10px;padding:0 16px;border:0;border-left:1px solid var(--rule);background:none;cursor:pointer;font-family:var(--mono);font-size:.75rem;text-transform:uppercase;transition:background .15s,color .15s}
.tool:last-child{border-right:1px solid var(--rule)}
.tool:hover{background:var(--ink);color:var(--paper)}
.tool:hover kbd{color:inherit;border-color:currentColor}
.search-btn{min-width:180px;justify-content:space-between}
.theme-label::before{content:"Dark"}
html[data-theme=dark] .theme-label::before{content:"Light"}
.menu-btn{display:none}

/* ---------- intro ---------- */
.intro{padding-top:clamp(48px,9vw,120px);padding-bottom:clamp(40px,6vw,80px);border-bottom:1px solid var(--rule)}
.display{margin:20px 0 0;font-size:clamp(3.2rem,11vw,10.5rem);line-height:.88;letter-spacing:-.065em;font-weight:600}
.intro-foot{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:end;margin-top:clamp(40px,6vw,80px)}
.intro-text{margin:0;max-width:34ch;font-size:1.25rem;line-height:1.4;color:var(--ink-2)}
.stats{display:flex;margin:0;border-top:1px solid var(--rule-strong)}
.stats div{padding:12px 28px 0 0;margin-right:28px;border-right:1px solid var(--rule)}
.stats div:last-child{border-right:0;margin-right:0}
.stats dt{font-family:var(--mono);font-size:.7rem;text-transform:uppercase;color:var(--ink-3)}
.stats dd{margin:4px 0 0;font-size:2.4rem;font-weight:600;letter-spacing:-.04em;line-height:1}

/* ---------- blocks ---------- */
.block{padding-top:clamp(56px,8vw,112px)}
.block-end{padding-bottom:clamp(64px,9vw,128px)}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:var(--gut);padding-bottom:clamp(64px,9vw,128px)}
.block-head{display:flex;justify-content:space-between;align-items:baseline;padding-bottom:12px;border-bottom:1px solid var(--rule-strong)}

/* ---------- project index ---------- */
.index{list-style:none;margin:0;padding:0}
.index li{border-bottom:1px solid var(--rule)}
.index-row{display:grid;grid-template-columns:56px minmax(0,1.1fr) minmax(0,1.3fr) 140px 32px;gap:24px;align-items:center;padding:28px 0;transition:background .15s,color .15s,padding .25s ease}
.index-no{color:var(--ink-3)}
.index-title{font-size:clamp(1.8rem,3.6vw,3rem);font-weight:600;letter-spacing:-.045em;line-height:1}
.index-desc{color:var(--ink-2);font-size:.98rem;max-width:44ch}
.index-tag{color:var(--ink-3);text-align:right}
.index-arrow{font-size:1.5rem;text-align:right;transition:transform .25s ease}
.index-row:hover{background:var(--ink);color:var(--paper);padding-inline:20px}
.index-row:hover .index-desc,.index-row:hover .index-no,.index-row:hover .index-tag{color:inherit;opacity:.7}
.index-row:hover .index-arrow{color:var(--signal);transform:translateX(4px)}

/* ---------- simple lists ---------- */
.list{list-style:none;margin:0;padding:0}
.list li{border-bottom:1px solid var(--rule)}
.list-row{display:grid;grid-template-columns:110px 1fr;gap:16px;align-items:baseline;padding:16px 0;font-size:1.1rem;letter-spacing:-.01em}
.list-row .mono{color:var(--ink-3)}
.list-row:hover span:last-child{color:var(--signal)}

/* ---------- page header ---------- */
.page-head{padding-top:clamp(48px,8vw,104px);padding-bottom:clamp(32px,5vw,56px)}
.display-sm{margin:16px 0 0;font-size:clamp(3rem,8vw,7rem);line-height:.9;letter-spacing:-.06em}
.page-lede{margin:24px 0 0;max-width:44ch;font-size:1.2rem;line-height:1.45;color:var(--ink-2)}

/* ---------- blog list ---------- */
.posts{list-style:none;margin:0;padding:0;border-top:1px solid var(--rule-strong)}
.posts li{border-bottom:1px solid var(--rule)}
.post{display:grid;grid-template-columns:140px 1fr 80px;gap:24px;align-items:baseline;padding:28px 0}
.post time,.post-read{color:var(--ink-3)}
.post-read{text-align:right}
.post-main{display:flex;flex-direction:column;gap:6px}
.post-title{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:600;letter-spacing:-.035em;line-height:1.1}
.post-desc{color:var(--ink-2);max-width:60ch}
.post:hover .post-title{text-decoration:underline;text-decoration-color:var(--signal);text-decoration-thickness:3px;text-underline-offset:5px}
.pager{display:flex;justify-content:space-between;padding-top:32px}
.pager a:hover{color:var(--signal)}

/* ---------- cheatsheet tiles ---------- */
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));border-top:1px solid var(--rule-strong);border-left:1px solid var(--rule)}
.tile{display:flex;flex-direction:column;gap:10px;min-height:240px;padding:24px;border-right:1px solid var(--rule);border-bottom:1px solid var(--rule);transition:background .15s,color .15s}
.tile-no{color:var(--ink-3)}
.tile-title{margin-top:auto;font-size:1.6rem;font-weight:600;letter-spacing:-.035em;line-height:1.05}
.tile-desc{color:var(--ink-2);font-size:.95rem}
.tile-go{color:var(--ink-3)}
.tile:hover{background:var(--signal);color:var(--on-signal)}
.tile:hover .tile-no,.tile:hover .tile-desc,.tile:hover .tile-go{color:inherit}

/* ---------- article ---------- */
.progress{position:fixed;top:60px;left:0;right:0;height:2px;z-index:41;pointer-events:none}
.progress span{display:block;height:100%;width:0;background:var(--signal)}
.article{display:grid;grid-template-columns:220px minmax(0,720px);gap:clamp(32px,6vw,96px);padding-top:clamp(48px,7vw,96px);padding-bottom:clamp(64px,9vw,128px)}
.article-meta{position:sticky;top:96px;align-self:start;display:flex;flex-direction:column;gap:24px}
.article-meta dl{display:grid;grid-template-columns:auto 1fr;gap:8px 16px;margin:0;padding-top:16px;border-top:1px solid var(--rule-strong)}
.article-meta dt{color:var(--ink-3)}
.article-meta dd{margin:0}
.back{color:var(--ink-3)}
.back:hover{color:var(--signal)}
.btn{display:inline-flex;justify-content:center;padding:14px 16px;background:var(--ink);color:var(--paper);border:1px solid var(--ink);transition:background .15s,color .15s,border-color .15s}
.btn:hover{background:var(--signal);border-color:var(--signal);color:var(--on-signal)}
.article-title{font-size:clamp(2.4rem,5.5vw,4.5rem);line-height:.95;letter-spacing:-.055em}

.prose{margin-top:48px;font-size:1.1rem;line-height:1.75;color:var(--ink)}
.prose>*+*{margin-top:1.2em}
.prose h2{margin-top:2.4em;padding-top:16px;border-top:1px solid var(--rule-strong);font-size:1.6rem;letter-spacing:-.03em}
.prose h3{margin-top:2em;font-size:1.25rem;letter-spacing:-.02em}
.prose a{text-decoration:underline;text-decoration-color:var(--signal);text-decoration-thickness:2px;text-underline-offset:3px}
.prose a:hover{background:var(--signal);color:var(--on-signal);text-decoration:none}
.prose ul,.prose ol{padding-left:1.2em}
.prose li::marker{color:var(--signal)}
.prose blockquote{margin:1.6em 0;padding:0 0 0 20px;border-left:3px solid var(--signal);font-size:1.25rem;line-height:1.5}
.prose :not(pre)>code{font-family:var(--mono);font-size:.85em;padding:.1em .35em;background:var(--tint)}
.prose pre{position:relative;font-family:var(--mono);font-size:.88rem;line-height:1.7;padding:20px 22px;background:var(--code)!important;color:var(--code-ink);overflow-x:auto}
.prose pre code{font-family:inherit}
.copy-btn{position:absolute;top:0;right:0;padding:6px 12px;border:0;background:var(--signal);color:var(--on-signal);font-family:var(--mono);font-size:.7rem;text-transform:uppercase;cursor:pointer;opacity:0;transition:opacity .15s}
.prose pre:hover .copy-btn,.copy-btn:focus-visible{opacity:1}
.prose table{width:100%;border-collapse:collapse;font-size:.95rem}
.prose th,.prose td{padding:10px 12px 10px 0;border-bottom:1px solid var(--rule);text-align:left}
.prose th{font-family:var(--mono);font-size:.72rem;text-transform:uppercase;color:var(--ink-3);border-bottom-color:var(--rule-strong)}
.prose hr{border:0;border-top:1px solid var(--rule)}

/* ---------- project logos and screenshots ---------- */
.project-head{display:flex;align-items:center;gap:clamp(16px,2.5vw,28px)}
.project-logo{flex:none;width:clamp(56px,7vw,96px);height:auto;aspect-ratio:1}
.index-title{display:flex;align-items:center;gap:16px}
.index-logo{flex:none;width:clamp(32px,3.4vw,48px);height:auto;aspect-ratio:1}
.shot{margin:2em 0}
.shot a{display:block;border:1px solid var(--rule-strong);background:var(--tint)}
.prose .shot a:hover{background:var(--tint)}
.shot img{width:100%}
.shot figcaption{margin-top:10px;color:var(--ink-3);text-transform:none}
.shot-cover{margin:40px 0 0}
.shot a[data-viewer]{cursor:zoom-in}

/* ---------- image viewer ---------- */
.viewer{width:100vw;height:100vh;max-width:none;max-height:none;margin:0;padding:clamp(48px,6vw,72px) var(--gut) var(--gut);border:0;background:transparent;color:#ecebe6;cursor:zoom-out}
.viewer[open]{display:flex;align-items:center;justify-content:center}
.viewer::backdrop{background:rgba(10,10,10,.88)}
.viewer-fig{margin:0;display:flex;flex-direction:column;align-items:center;gap:12px;max-width:100%;max-height:100%}
.viewer-fig img{display:block;max-width:100%;max-height:calc(100vh - 160px);width:auto;height:auto;object-fit:contain;border:1px solid #2a2a27;cursor:default}
.viewer-fig figcaption{text-transform:none;color:#a9a8a1;text-align:center;max-width:80ch}
.viewer-close{position:fixed;top:16px;right:16px;display:flex;align-items:center;gap:10px;padding:8px 12px;border:1px solid #ecebe6;background:none;color:#ecebe6;cursor:pointer}
.viewer-close:hover{background:#ecebe6;color:#111110}
.viewer-close kbd{color:inherit;border-color:currentColor}
.giallo-l{display:inline-block;min-height:1lh;width:100%}
.giallo-ln{display:inline-block;user-select:none;margin-right:.4em;padding:.4em;min-width:3ch;text-align:right;opacity:.6}

/* ---------- table of contents ---------- */
.toc{padding-top:16px;border-top:1px solid var(--rule-strong)}
.toc summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;color:var(--ink-3)}
.toc summary::-webkit-details-marker{display:none}
.toc summary::after{content:"+"}
.toc[open] summary::after{content:"−"}
.toc ol{list-style:none;margin:0;padding:0;text-transform:none;font-family:var(--sans);font-size:.88rem;letter-spacing:0}
.toc>ol{margin-top:12px;counter-reset:toc}
.toc>ol>li{counter-increment:toc}
.toc a{display:grid;grid-template-columns:28px 1fr;padding:6px 0 6px 10px;margin-left:-12px;border-left:2px solid transparent;color:var(--ink-2);line-height:1.3;transition:color .15s,border-color .15s}
.toc>ol>li>a::before{content:counter(toc,decimal-leading-zero);font-family:var(--mono);font-size:.7rem;color:var(--ink-3);padding-top:2px}
.toc ol ol a{grid-template-columns:1fr;padding-left:38px;font-size:.82rem}
.toc a:hover{color:var(--ink)}
.toc a.active{color:var(--ink);border-left-color:var(--signal)}
.toc>ol>li>a.active::before{color:var(--signal)}
.article-meta{max-height:calc(100vh - 120px);overflow-y:auto;scrollbar-width:thin}
.prose h2,.prose h3{scroll-margin-top:84px}
.prose .zola-anchor{color:inherit;text-decoration:none}
.prose .zola-anchor:hover{background:none;color:var(--signal)}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--rule-strong);padding:clamp(40px,6vw,72px) 0 28px}
.foot-big{margin:0;font-size:clamp(2rem,8.5vw,7.5rem);font-weight:700;letter-spacing:-.075em;line-height:.8}
.foot-row{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-top:32px;padding-top:16px;border-top:1px solid var(--rule)}
.foot-row .mono{color:var(--ink-3)}
.foot-links{display:flex;gap:24px;font-family:var(--mono);font-size:.78rem;text-transform:uppercase}
.foot-links a:hover{color:var(--signal)}

/* ---------- search palette ---------- */
.palette{width:min(680px,100% - 24px);max-height:min(560px,80vh);margin:10vh auto auto;padding:0;border:1px solid var(--rule-strong);background:var(--paper);color:var(--ink)}
.palette[open]{display:flex;flex-direction:column}
.palette::backdrop{background:rgba(18,18,18,.55)}
html[data-theme=dark] .palette::backdrop{background:rgba(0,0,0,.7)}
.palette-input{display:flex;align-items:center;gap:14px;padding:18px 20px;border-bottom:1px solid var(--rule-strong)}
.prompt{color:var(--signal);font-size:1.1rem}
.palette-input input{flex:1;border:0;background:none;outline:none;font-size:1.25rem;letter-spacing:-.01em}
.palette-input input::-webkit-search-cancel-button{display:none}
.palette-results{flex:1;overflow-y:auto}
.palette-results:empty{display:none}
.result{display:grid;grid-template-columns:96px 1fr;gap:4px 16px;padding:14px 20px;border-bottom:1px solid var(--rule)}
.result-type{grid-row:span 2;font-family:var(--mono);font-size:.7rem;text-transform:uppercase;color:var(--ink-3);padding-top:4px}
.result strong{font-weight:600;letter-spacing:-.01em}
.result .desc{color:var(--ink-2);font-size:.9rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.result mark{background:none;color:inherit;box-shadow:inset 0 -.45em 0 color-mix(in srgb,var(--signal) 45%,transparent)}
.result[aria-selected=true]{background:var(--ink);color:var(--paper)}
.result[aria-selected=true] .desc,.result[aria-selected=true] .result-type{color:inherit;opacity:.7}
.no-results{margin:0;padding:24px 20px;color:var(--ink-3)}
.palette-foot{display:flex;justify-content:space-between;margin:0;padding:10px 20px;color:var(--ink-3);border-top:1px solid var(--rule)}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .index-row{grid-template-columns:44px 1fr 32px}
  .index-desc,.index-tag{grid-column:2}
  .index-tag{text-align:left}
  .index-arrow{grid-column:3;grid-row:1}
  .two-col{grid-template-columns:1fr;gap:56px}
  .article{grid-template-columns:minmax(0,1fr)}
  .article-meta{position:static;max-height:none;overflow:visible}
  .search-btn{min-width:0}
  .search-btn span{display:none}
}
@media (max-width:720px){
  body{font-size:16px}
  .menu-btn{display:flex}
  .menu{position:fixed;top:60px;left:0;right:0;flex-direction:column;gap:0;background:var(--paper);border-bottom:1px solid var(--rule-strong);display:none}
  .menu.open{display:flex}
  .menu a{padding:18px var(--gut);border-top:1px solid var(--rule);font-size:1.4rem;letter-spacing:-.03em}
  .menu a::after{display:none}
  .tool{padding:0 12px}
  .intro-foot{grid-template-columns:1fr}
  .post{grid-template-columns:1fr}
  .post-read{display:none}
  .list-row{grid-template-columns:1fr;gap:2px}
  .result{grid-template-columns:1fr}
  .result-type{grid-row:auto;padding:0}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}