/* ICT, CS and Digital PD Day: a plain procedure page. No scroll effects.
   Site palette: near-black ground, flat teal accent, no glow, no gradients. */

:root {
  --bg: #0a0a0c;
  --surface: #111417;
  --surface-2: #0f1a1c;
  --ink: #f5f5f7;
  --ink-soft: #a3b5b3;
  --ink-mute: #6f7f7d;
  --accent: #1ac9c9;
  --accent-ink: #0a0a0c;
  --hairline: rgba(255,255,255,0.09);
  --hairline-teal: rgba(26,201,201,0.28);
  --font-display: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-text: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --ink-teal: #1ac9c9;   /* set up once */
  --ink-mint: #beebd5;   /* the one input per unit */
  --ink-sage: #8db091;   /* written by the pipeline */
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --bar-h: 56px;
  --toc-w: 15.5rem;
  --measure: 72ch;
  --r: 6px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--bar-h) + 1rem); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--font-text); font-size: 1rem; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--accent); }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
code { font-family: var(--font-mono); font-size: 0.86em; }
p code, li code {
  background: var(--surface); border: 1px solid var(--hairline); border-radius: 4px;
  padding: 0.1em 0.4em; color: var(--ink); overflow-wrap: anywhere;
}

/* ----------------------------------------------------------------- bar -- */
.bar {
  position: fixed; inset: 0 0 auto 0; height: var(--bar-h); z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0 1.5rem; background: rgba(10,10,12,0.94); border-bottom: 1px solid var(--hairline);
}
.bar__mark { color: var(--ink); text-decoration: none; font-weight: 600; letter-spacing: 0.01em; white-space: nowrap; }
.bar__mark small {
  margin-left: 0.8rem; font-family: var(--font-mono); font-weight: 400; font-size: 0.62rem;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-soft);
}
.bar__nav { display: flex; gap: 1.4rem; }
.bar__nav a {
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-soft); text-decoration: none;
}
.bar__nav a:hover { color: var(--accent); }

/* -------------------------------------------------------------- layout -- */
.layout {
  display: grid; grid-template-columns: var(--toc-w) minmax(0, 1fr); gap: 3rem;
  max-width: 82rem; margin: 0 auto; padding: calc(var(--bar-h) + 2.5rem) 1.5rem 4rem;
}
.toc { position: sticky; top: calc(var(--bar-h) + 1.5rem); align-self: start; }
.toc__h {
  margin: 0 0 0.8rem; font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--ink-mute);
}
.toc__list { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--hairline); }
.toc__list li { margin: 0; }
.toc__list a {
  display: block; padding: 0.42rem 0 0.42rem 1rem; margin-left: -1px; border-left: 1px solid transparent;
  color: var(--ink-soft); text-decoration: none; font-size: 0.86rem; line-height: 1.35;
}
.toc__list a:hover { color: var(--ink); }
.toc__list a.is-current { color: var(--ink); border-left-color: var(--accent); }

.doc { min-width: 0; }
.doc > * { max-width: var(--measure); }
.doc > .sec { max-width: none; }
.sec > * { max-width: var(--measure); }
.sec > .skillfile, .sec > .tree, .sec > .tblwrap, .sec > .two, .sec > .withfig, .sec > .story { max-width: none; }

/* --------------------------------------------------------------- title -- */
.eyebrow {
  margin: 0 0 0.9rem; font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--accent);
}
h1 { margin: 0; font-family: var(--font-display); font-weight: 500; font-size: clamp(2.4rem, 1.6rem + 2.6vw, 3.8rem); line-height: 1.06; }
.title__sub { margin: 1.2rem 0 0; font-size: 1.12rem; line-height: 1.55; color: var(--ink); }
.title__how { margin: 1rem 0 0; color: var(--ink-soft); }

/* ------------------------------------------------------------ sections -- */
.sec { margin-top: 4rem; padding-top: 2.5rem; border-top: 1px solid var(--hairline); }
h2 {
  margin: 0 0 1.4rem; font-family: var(--font-display); font-weight: 500; font-size: clamp(2rem, 1.4rem + 2vw, 3rem); line-height: 1.08;
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.3rem 0.9rem;
}
.sec__n {
  font-family: var(--font-mono); font-weight: 500; font-size: 0.72rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--accent); padding: 0.25rem 0.55rem; border: 1px solid var(--hairline-teal);
  border-radius: 4px; align-self: center;
}
.sec__skill { font-family: var(--font-mono); font-weight: 400; font-size: 0.78rem; color: var(--ink-soft); letter-spacing: 0.02em; }
h3 { margin: 2.2rem 0 0.7rem; font-size: 1.05rem; font-weight: 700; letter-spacing: 0.005em; }
h3:first-of-type { margin-top: 0.4rem; }
h2 + h3 { margin-top: 0.4rem; }
p { margin: 0 0 1rem; }
.sec p, .sec li { color: var(--ink-soft); overflow-wrap: anywhere; }
.sec li::marker { color: var(--ink-mute); }
.sec b, .sec strong { color: var(--ink); font-weight: 600; }
.produces { color: var(--ink) !important; padding: 0.9rem 1.1rem; border-left: 2px solid var(--accent); background: var(--surface); border-radius: 0 var(--r) var(--r) 0; }
ul, ol { margin: 0 0 1rem; padding-left: 1.3rem; }
li + li { margin-top: 0.35rem; }
ol.steps { padding-left: 0; list-style: none; counter-reset: step; }
ol.steps li { position: relative; padding-left: 2.4rem; counter-increment: step; overflow-wrap: anywhere; }
ol.steps li + li { margin-top: 0.7rem; }
ol.steps li::before {
  content: counter(step); position: absolute; left: 0; top: 0.12em;
  width: 1.6rem; height: 1.6rem; border: 1px solid var(--hairline-teal); border-radius: 50%;
  display: grid; place-items: center; font-family: var(--font-mono); font-size: 0.7rem; color: var(--accent);
}

/* --------------------------------------------------------------- panels -- */
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 1.4rem 0 0.5rem; }
.panel {
  border: 1px solid var(--hairline); border-radius: var(--r); background: var(--surface); padding: 1.1rem 1.3rem;
}
.panel--files { background: var(--surface-2); border-color: var(--hairline-teal); }
.panel__h {
  margin: 0 0 0.8rem; font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink-soft);
}
.panel--files .panel__h { color: var(--accent); }
.panel ol { margin: 0; padding-left: 1.2rem; }
.files { list-style: none; margin: 0; padding: 0; font-family: var(--font-mono); font-size: 0.7rem; line-height: 1.7; }
.files li { color: var(--ink) !important; overflow-wrap: anywhere; margin: 0; }
.files li::before { content: "\2514\2500 "; color: var(--accent); }
.files .dir { color: var(--ink-soft) !important; }
.files .dir::before { content: ""; }

.withfig { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2rem; align-items: start; }
.fig { margin: 1.2rem 0; }
.fig img { border: 1px solid var(--hairline); border-radius: var(--r); background: #0d1012; }
.fig figcaption { margin-top: 0.5rem; font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.06em; color: var(--ink-mute); }
.fig--small { margin: 0; width: 233px; }
.fig--wide { margin: 1.6rem 0; }
.pre--cap { max-height: 30rem; margin: 0; }
.two--code { margin-top: 0.4rem; align-items: start; }
.two--code .fig { margin: 0; min-width: 0; }
.sec > .fig--wide { max-width: none; }
.two--figs { margin-top: 0; align-items: start; }
.two--figs .fig { margin: 0; }

/* ---------------------------------------------------------------- inputs -- */
.inputs { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem 2rem; margin: 1.2rem 0 1.8rem; }
.inputs div { margin: 0; border-top: 1px solid var(--hairline); padding-top: 0.8rem; }
.inputs dt { margin: 0 0 0.3rem; font-weight: 700; color: var(--ink); }
.inputs dd { margin: 0; color: var(--ink-soft); font-size: 0.93rem; line-height: 1.55; }

.rule {
  margin: 1.4rem 0 0; padding: 1rem 1.2rem; border: 1px solid var(--hairline); border-left: 2px solid var(--accent);
  border-radius: 0 var(--r) var(--r) 0; background: var(--surface);
}
.rule p { margin: 0; color: var(--ink) !important; }
.rule__k { margin: 0 0 0.4rem !important; font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-soft) !important; }

/* ------------------------------------------------------------ code blocks -- */
pre {
  margin: 0; font-family: var(--font-mono); font-size: 0.78rem; line-height: 1.55; color: var(--ink);
  background: var(--surface); border: 1px solid var(--hairline); border-radius: var(--r);
  padding: 1rem 1.2rem; overflow: auto; tab-size: 4;
}
pre code { font-size: inherit; }
.tree { white-space: pre; margin: 1rem 0 1.4rem; }
.skillfile { margin: 1rem 0 2rem; border: 1px solid var(--hairline-teal); border-radius: var(--r); background: var(--surface-2); overflow: hidden; }
.skillfile__bar {
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; padding: 0.6rem 1.1rem;
  border-bottom: 1px solid var(--hairline); font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.04em;
}
.skillfile__path { color: var(--accent); overflow-wrap: anywhere; }
.skillfile__meta { color: var(--ink-mute); }
.skillfile__btn {
  margin-left: auto; font: inherit; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.62rem;
  color: var(--ink); background: transparent; border: 1px solid var(--hairline-teal); border-radius: 4px;
  padding: 0.3rem 0.7rem; cursor: pointer;
}
.skillfile__btn:hover { border-color: var(--accent); color: var(--accent); }
.skillfile__pre {
  border: 0; border-radius: 0; background: transparent; max-height: 34rem; white-space: pre-wrap; overflow-wrap: anywhere;
}
.skillfile.is-open .skillfile__pre { max-height: none; }
.skillfile__note { margin: 0; padding: 0.6rem 1.1rem; border-top: 1px solid var(--hairline); font-size: 0.82rem; color: var(--ink-mute) !important; }

/* ---------------------------------------------------------------- tables -- */
.tblwrap { margin: 1rem 0 1.6rem; overflow-x: auto; }
.tbl { width: 100%; border-collapse: collapse; margin: 0; font-size: 0.9rem; min-width: 36rem; }
.tbl th, .tbl td { text-align: left; vertical-align: top; padding: 0.65rem 0.8rem; border-top: 1px solid var(--hairline); }
.tbl th { font-family: var(--font-mono); font-weight: 500; font-size: 0.64rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-soft); border-top: 0; }
.tbl td { color: var(--ink-soft); }
.tbl td:first-child { color: var(--ink); font-family: var(--font-mono); font-size: 0.8rem; white-space: nowrap; }
.tbl__total td { color: var(--ink); border-top: 1px solid var(--hairline-teal); }
.tbl__total td:nth-child(3) { font-weight: 700; }

/* --------------------------------------------------------------- stories -- */
.story { display: grid; grid-template-columns: minmax(0, 1fr) minmax(16rem, 22rem); gap: 2rem; align-items: start; margin-top: 2rem; padding-top: 1.6rem; border-top: 1px solid var(--hairline); }
.story h3 { margin-top: 0; font-family: var(--font-display); font-weight: 500; font-size: 1.9rem; line-height: 1.05; }
.story .q { color: var(--ink) !important; font-style: italic; font-family: var(--font-display); font-size: 1.3rem; line-height: 1.3; }
.story .fig { margin: 0; }
.story .fig img { max-height: 30rem; width: auto; }

.handover { list-style: none; padding: 0; }
.handover li { padding: 0.8rem 0; border-top: 1px solid var(--hairline); margin: 0; }

.prompt { margin: 1.2rem 0 0; padding: 1rem 1.2rem; border: 1px solid var(--hairline-teal); border-radius: var(--r); background: var(--surface-2); }
.prompt p { margin: 0; color: var(--ink) !important; font-family: var(--font-mono); font-size: 0.86rem; line-height: 1.6; }
.prompt__k { margin: 0 0 0.4rem !important; font-size: 0.62rem !important; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent) !important; }

.foot { margin-top: 4rem; padding-top: 1.4rem; border-top: 1px solid var(--hairline); display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap; font-size: 0.82rem; }
.foot p { margin: 0; color: var(--ink-mute) !important; }
.foot .mark { color: var(--ink); font-weight: 600; }

/* --------------------------------------------------------------- narrow -- */
@media (max-width: 960px) {
  .layout { grid-template-columns: minmax(0, 1fr); gap: 2rem; padding-top: calc(var(--bar-h) + 1.5rem); }
  .toc { position: static; }
  .toc__list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; border-left: 0; }
  .toc__list a { border-left: 0; padding-left: 0; }
  .bar__mark small { display: none; }
  .two, .withfig, .inputs, .story { grid-template-columns: minmax(0, 1fr); }
  .fig--small { width: auto; max-width: 233px; }
  .story .fig img { max-height: none; }
  .skillfile__pre { max-height: 26rem; }
}
@media (max-width: 600px) {
  .layout { padding-inline: 1rem; }
  .toc__list { grid-template-columns: 1fr; }
  .bar { padding-inline: 1rem; }
  .bar__nav { gap: 1rem; }
}
@media print {
  .bar, .toc, .skillfile__btn { display: none; }
  .layout { padding-top: 0; grid-template-columns: 1fr; }
  body { background: #fff; color: #000; }
  .skillfile__pre { max-height: none; }
}

/* ------------------------------------------------------------------ slide -- */
/* Phase 4 opens on the slide SD asked to keep: serif title left, coloured tree right. */
.sec--slide > .slide { max-width: none; }
.slide {
  display: grid; grid-template-columns: minmax(0, 33fr) minmax(0, 67fr); gap: 2.5rem; align-items: center;
  padding: 2rem 0 2.5rem; margin-bottom: 2rem; border-bottom: 1px solid var(--hairline);
}
.slide__title { margin: 0; display: block; }
.slide__id { margin: 0.6rem 0 0; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.08em; color: var(--ink-soft) !important; }
.slide__id b { color: var(--accent); font-weight: 500; margin-right: 0.6em; }
.slide__text { margin: 1.6rem 0 0; font-size: 1.12rem; line-height: 1.5; color: var(--ink) !important; }
.slide__text + .slide__text { margin-top: 1rem; font-size: 1rem; color: var(--ink-soft) !important; }
.ctree {
  list-style: none; margin: 0; padding: 0; font-family: var(--font-mono);
  font-size: 0.66rem; line-height: 1.45; color: var(--ink);
  overflow-x: auto;
}
.ctree li { white-space: pre; margin: 0; color: var(--ink) !important; }
.ctree .b { color: var(--ink-soft); }
.ctree .d { color: var(--ink); }
.ctree .s { color: var(--ink-teal); }
.ctree .i { color: var(--ink-mint); }
.ctree .o { color: var(--ink-sage); }
.ctree .t { color: var(--ink-soft); }
.legend {
  display: flex; gap: 1.6rem; flex-wrap: wrap; margin: 1.2rem 0 0; padding: 0; list-style: none;
  font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.08em; text-transform: uppercase;
}
.legend li { color: var(--ink-soft) !important; margin: 0; }
.legend li::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 0.6em; vertical-align: middle; background: var(--c); }
.legend .s::before { --c: var(--ink-teal); } .legend .i::before { --c: var(--ink-mint); } .legend .o::before { --c: var(--ink-sage); }
@media (max-width: 960px) {
  .slide { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; }
  .slide__right { min-width: 0; }
}

/* ------------------------------------------------------- deck button -- */
.deckbtn {
  display: block; margin: 1.6rem 0 0.4rem; max-width: 640px; text-decoration: none;
  border: 1px solid var(--hairline-teal); border-radius: var(--r); overflow: hidden; background: #0d1012;
  transition: border-color .2s, transform .2s;
}
.deckbtn img { display: block; width: 100%; height: auto; border: 0; border-radius: 0; }
.deckbtn__cap {
  display: flex; justify-content: space-between; align-items: center; padding: 0.7rem 1rem;
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent);
  border-top: 1px solid var(--hairline);
}
.deckbtn:hover { border-color: var(--accent); transform: translateY(-2px); }
.deckbtn:hover .deckbtn__cap { background: var(--accent); color: var(--accent-ink); }