/* fsdsp56k README page: a long read in the splash's theme, dark and light */
body { background: var(--bg); }
:root[data-theme="dark"] body { background: radial-gradient(1200px 500px at 70% -10%, rgba(48, 185, 219, .10), transparent 60%), var(--bg); }

.topbar { position: sticky; top: 0; z-index: 40; border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
          background: color-mix(in srgb, var(--bg) 82%, transparent); }
.topbar .in { max-width: 1320px; margin: 0 auto; padding: 0 24px; height: 58px; display: flex; align-items: center; gap: 18px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--fg); text-decoration: none !important; }
.brand img { width: 28px; height: 28px; border-radius: 6px; }
.brand img.wordmark { width: auto; height: 26px; border-radius: 0; }
.brand .sub { font: 500 13px/1 var(--f-body); color: var(--dim); margin-left: 4px; }
.topbar .right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.topbar .right > a { font: 500 14px/1 var(--f-body); color: var(--fg-2); }
.toc-toggle { display: none; }

.layout { max-width: 1320px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: 250px minmax(0, 820px); justify-content: center; gap: 64px; }
aside.toc { position: sticky; top: 58px; align-self: start; max-height: calc(100vh - 58px); overflow: auto; padding: 34px 0 120px; scrollbar-width: thin; }
.toc h2 { margin: 0 0 12px; font: 600 calc(11.5px * var(--mono-scale) / .92)/1 var(--f-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--dim); }
.toc ol { list-style: none; margin: 0; padding: 0; }
.toc li a { display: block; padding: 5px 10px 5px 12px; border-left: 2px solid var(--line); color: var(--fg-2); font-size: 14px; line-height: 1.35; }
.toc li a:hover { color: var(--fg); text-decoration: none; border-left-color: var(--line-2); }
.toc li li a { padding-left: 26px; font-size: 13.2px; color: var(--dim); }
.toc li a.active { color: var(--cyan-2); border-left-color: var(--cyan-2); background: linear-gradient(90deg, rgba(48, 185, 219, .10), transparent); }
:root[data-theme="light"] .toc li a.active { color: var(--cyan); border-left-color: var(--cyan); }
.toc li a.within { color: var(--fg); border-left-color: color-mix(in srgb, var(--cyan-2) 45%, var(--line)); }
.dock-slot { display: flex; }
.toc .toc-meta { margin-top: 24px; display: grid; gap: 8px; }
.toc .toc-meta .chips .chip { padding: 6px 10px; }

article.doc { min-width: 0; width: 100%; max-width: 820px; padding: 40px 0 140px; }
.banner { display: block; width: 100%; height: auto; border-radius: 14px; box-shadow: var(--shadow); }
.doc-hero { margin-bottom: 30px; }
.doc-title { margin: 0; }
.doc-hero .lead { font-size: 20px; line-height: 1.55; color: var(--fg); margin: 26px 0 0; }
.doc-hero .badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.badge { font: 500 calc(12px * var(--mono-scale) / .92)/1 var(--f-mono); padding: 6px 9px; border-radius: 6px; border: 1px solid var(--line-2); color: var(--fg-2); background: var(--panel); }
.badge b { color: var(--cyan-2); font-weight: 600; }
:root[data-theme="light"] .badge b { color: var(--cyan); }

.doc h2 { margin: 72px 0 0; padding-top: 18px; font-family: var(--f-display); font-weight: var(--display-weight); letter-spacing: var(--display-track);
          font-size: calc(36px * var(--display-scale)); line-height: 1.1; color: var(--fg); scroll-margin-top: 70px; position: relative; }
.doc h2::before { content: ""; position: absolute; top: 0; left: 0; width: 44px; height: 3px; border-radius: 2px; background: linear-gradient(90deg, var(--cyan-2), var(--yellow)); }
.doc h3 { margin: 44px 0 0; font-family: var(--f-display); font-weight: var(--display-weight); letter-spacing: var(--display-track);
          font-size: calc(23px * var(--display-scale)); line-height: 1.2; color: var(--fg); scroll-margin-top: 70px; }
.doc h4 { margin: 28px 0 0; font: 600 16px/1.3 var(--f-body); color: var(--fg); scroll-margin-top: 70px; }
.doc h2 .anchor, .doc h3 .anchor { margin-left: 10px; color: var(--dim); opacity: 0; font-weight: 400; font-size: .7em; text-decoration: none; }
.doc h2:hover .anchor, .doc h3:hover .anchor { opacity: 1; }
/* the mark comes from CSS, so a heading's text is only its words (the art drops the anchors' text) */
.doc h2 .anchor::before, .doc h3 .anchor::before { content: '#'; }
.doc p, .doc li { color: var(--fg-2); }
.doc p { margin: 16px 0 0; }
.doc strong { color: var(--fg); font-weight: 600; }
.doc ul, .doc ol { margin: 14px 0 0; padding-left: 22px; }
.doc li { margin: 8px 0 0; }
.doc li::marker { color: var(--cyan); }
.doc :not(pre) > code { padding: .12em .38em; border-radius: 5px; background: color-mix(in srgb, var(--cyan) 12%, var(--panel)); color: var(--fg); border: 1px solid color-mix(in srgb, var(--cyan) 18%, transparent); white-space: nowrap; }
.doc pre.code, .doc .code-head { margin-top: 20px; }
.doc .code-head + pre.code { margin-top: 0; }
.doc hr { border: 0; height: 1px; background: var(--line); margin: 40px 0; }

.questions { list-style: none; padding: 0 !important; display: grid; gap: 10px; margin-top: 18px !important; }
.questions li { margin: 0; padding: 14px 16px 14px 46px; position: relative; border-radius: 10px; border: 1px solid var(--line); background: var(--panel); color: var(--fg); }
.questions li::before { content: "?"; position: absolute; left: 14px; top: 13px; width: 20px; height: 20px; display: grid; place-items: center; border-radius: 5px;
                        font: 700 12px/1 var(--f-mono); color: #04121a; background: var(--yellow); }
.features { list-style: none; padding: 0 !important; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 18px !important; }
.features li { margin: 0; padding: 16px 18px; border-radius: 12px; border: 1px solid var(--line); background: var(--panel); font-size: 15px; line-height: 1.55; }
.features li strong { display: block; margin-bottom: 4px; font-size: 16px; }

/* tables */
.table-wrap { margin-top: 20px; overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
th, td { text-align: left; vertical-align: top; padding: 11px 14px; border-top: 1px solid var(--line); color: var(--fg-2); }
thead th { border-top: 0; font: 600 calc(11.5px * var(--mono-scale) / .92)/1.2 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--dim); background: var(--panel-2); }
td code { white-space: nowrap; }
table.cmds td { vertical-align: middle; }
table.cmds td.card { width: 1%; padding: 8px 10px; }
table.cmds td.card img { display: block; width: 210px; height: auto; border-radius: 8px; transition: transform .15s, box-shadow .15s; }
table.cmds td.card a:hover img { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(48, 185, 219, .25); }
table.cmds td.name a { font: 600 calc(14.5px * var(--mono-scale) / .92)/1.3 var(--f-mono); color: var(--fg); white-space: nowrap; }
table.cmds td.name a:hover { color: var(--cyan-2); }
.sketch-tag { display: inline-block; margin-left: 6px; font: 500 calc(10.5px * var(--mono-scale) / .92)/1 var(--f-mono); color: var(--amber); border: 1px dashed currentColor; border-radius: 5px; padding: 2px 5px; vertical-align: 2px; }
.ratio { font-family: var(--f-mono); color: var(--amber); }

/* per-command sections */
.cmd-section { margin-top: 26px; padding: 22px 24px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); scroll-margin-top: 70px; }
.cmd-section:target { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(48, 185, 219, .15); }
.cmd-section header { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.cmd-section header img { width: 190px; height: auto; border-radius: 8px; }
.cmd-section h3 { margin: 0; font-family: var(--f-mono); font-size: calc(21px * var(--mono-scale) / .92); letter-spacing: 0; }
.cmd-section h3 .grp { color: var(--orange); }
.cmd-section .synopsis { margin-top: 14px; }
.cmd-section .synopsis pre.code { margin: 0; padding: 12px 16px; font-size: calc(13px * var(--mono-scale) / .92); }
.todo { margin-top: 14px; padding: 12px 14px; border-radius: 10px; border: 1px dashed color-mix(in srgb, var(--amber) 60%, transparent);
        background: color-mix(in srgb, var(--amber) 7%, transparent); color: var(--fg-2); font-size: 14px; }
.todo b { font: 700 calc(11px * var(--mono-scale) / .92)/1 var(--f-mono); color: #1a1000; background: var(--amber); border-radius: 4px; padding: 3px 6px; margin-right: 8px; letter-spacing: .06em; }
.cmd-section h4 { margin-top: 18px; font-size: 14px; text-transform: uppercase; letter-spacing: .1em; color: var(--dim); font-family: var(--f-mono); }

/* diagrams */
.pipeline { margin-top: 22px; padding: 22px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); display: grid; gap: 16px; }
.lane { display: flex; flex-wrap: wrap; align-items: stretch; gap: 8px; }
.lane .lane-label { width: 100%; font: 600 calc(11px * var(--mono-scale) / .92)/1 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--dim); }
.node { flex: 1 1 0; min-width: 0; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line-2); background: var(--panel-2); position: relative; }
.node b { display: block; font: 600 14px/1.25 var(--f-body); color: var(--fg); }
.node span { display: block; margin-top: 4px; font: 400 calc(12px * var(--mono-scale) / .92)/1.35 var(--f-mono); color: var(--dim); }
.node.src { border-color: var(--cyan); }
.node.grade { border-color: var(--green); background: color-mix(in srgb, var(--green) 8%, var(--panel-2)); }
.node.out { border-color: var(--amber); }
.arrow { flex: 0 0 auto; align-self: center; color: var(--cyan); font: 700 16px/1 var(--f-mono); }
.arrow.dashed { color: var(--dim); }

.workset { margin-top: 22px; display: grid; grid-template-columns: 1fr 1.5fr 1fr; gap: 14px; align-items: stretch; }
.ws-box { padding: 16px; border-radius: 12px; border: 1px solid var(--line-2); background: var(--panel); }
.ws-box h5 { margin: 0 0 10px; font: 600 calc(11.5px * var(--mono-scale) / .92)/1 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--dim); }
.ws-box p { margin: 0; font-size: 14px; }
.memmap { display: grid; gap: 6px; }
.memmap div { display: flex; justify-content: space-between; gap: 10px; padding: 9px 12px; border-radius: 8px; font: 500 calc(12.5px * var(--mono-scale) / .92)/1.3 var(--f-mono); color: var(--fg); }
.memmap .p { background: color-mix(in srgb, var(--yellow) 16%, transparent); border: 1px solid color-mix(in srgb, var(--yellow) 40%, transparent); }
.memmap .s { background: color-mix(in srgb, var(--cyan) 16%, transparent); border: 1px solid color-mix(in srgb, var(--cyan) 40%, transparent); min-height: 70px; }
.memmap .x { background: color-mix(in srgb, var(--blue) 18%, transparent); border: 1px solid color-mix(in srgb, var(--blue) 45%, transparent); }
.memmap em { font-style: normal; color: var(--dim); }

.credits-list { list-style: none; padding: 0 !important; display: grid; gap: 12px; }
.credits-list li { margin: 0; padding: 16px 18px; border-radius: 12px; border: 1px solid var(--line); background: var(--panel); }
.credits-list li strong { display: block; margin-bottom: 4px; }

.doc-foot { margin-top: 80px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--dim); font-size: 14px; }

@media (max-width: 1080px) {
  .layout { grid-template-columns: minmax(0, 1fr); gap: 0; }
  aside.toc { position: fixed; z-index: 45; top: 58px; left: 0; right: 0; max-height: calc(100vh - 58px); padding: 18px 20px 30px;
              background: var(--bg); border-bottom: 1px solid var(--line); box-shadow: var(--shadow); display: none; }
  aside.toc.open { display: block; }
  .toc-toggle { display: inline-flex; }
  article.doc { margin: 0 auto; }
}
@media (max-width: 760px) {
  .topbar .in, .layout { padding: 0 16px; }
  .topbar .right > a.hide-sm, .brand .sub { display: none; }
  article.doc { padding-top: 22px; }
  .doc-hero .lead { font-size: 18px; }
  .doc h2 { font-size: calc(29px * var(--display-scale)); margin-top: 56px; }
  .features { grid-template-columns: minmax(0, 1fr); }
  .workset { grid-template-columns: minmax(0, 1fr); }
  .topbar .right > .chips { display: none; }
  table.cmds thead { display: none; }
  table.cmds tr { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; border-top: 1px solid var(--line); }
  table.cmds tr:first-child { border-top: 0; }
  table.cmds td { border-top: 0; padding: 8px 12px; }
  table.cmds td:nth-child(3) { grid-column: 1 / -1; padding-top: 0; }
  table.cmds td.card { width: auto; }
  table.cmds td.card img { width: 150px; }
  .cmd-section { padding: 18px 16px; }
  .cmd-section header img { width: 100%; max-width: 300px; }
  .lane { flex-direction: column; }
  .arrow { transform: rotate(90deg); }
}
[id] { scroll-margin-top: 70px; }