/* AI-AMCe project site.
   Layout concept: an engineering schematic. The logo banner opens the page, white in light mode and navy in
   dark mode, the closed-loop diagram sits on a grey panel, and mono type carries data and dates. */
:root {
  --paper: #f6f8fb;
  --surface: #ffffff;
  --ink: #12233d;
  --muted: #55657d;
  --rule: #d8e0ea;
  --accent: #1568b3;
  --accent-soft: #e6edfd;
  --signal: #ffcc00;
  --band: #ffffff;
  --band-2: #123f8c;
  --band-ink: #0a2545;
  --band-muted: #44546c;
  --band-art: url("../img/network.svg");
  --panel: #e3e7ec;
  --tile: #ffffff;
  --tile-dark: #12233d;
  --wp1: #55657d;
  --wp2: #1d4ed8;
  --wp3: #7c3aed;
  --wp4: #0f766e;
  --wp5: #b45309;
  --font-display: "Avenir Next", "Segoe UI Variable Display", "Segoe UI", Roboto, "Helvetica Neue", "Liberation Sans", Arial, sans-serif;
  --font-body: "Segoe UI", Roboto, "Helvetica Neue", "Liberation Sans", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --wrap: 72rem;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0c1524; --surface: #131f33; --ink: #e8eef8; --muted: #a2b1c7; --rule: #27364e;
    --accent: #5aaff0; --accent-soft: #1b2c4d; --band: #0a2545; --band-2: #143a7e;
    --band-ink: #ffffff; --band-muted: #c4d3ee; --band-art: url("../img/network-dark.svg");
    --panel: #242b36;
    --wp1: #a2b1c7; --wp2: #8db0ff; --wp3: #b99bff; --wp4: #4fd1c0; --wp5: #f0ae5a;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0c1524; --surface: #131f33; --ink: #e8eef8; --muted: #a2b1c7; --rule: #27364e;
  --accent: #5aaff0; --accent-soft: #1b2c4d; --band: #0a2545; --band-2: #143a7e;
  --band-ink: #ffffff; --band-muted: #c4d3ee; --band-art: url("../img/network-dark.svg");
  --panel: #242b36;
  --wp1: #a2b1c7; --wp2: #8db0ff; --wp3: #b99bff; --wp4: #4fd1c0; --wp5: #f0ae5a;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 5rem; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 1.0625rem/1.65 var(--font-body);
}
img, svg { max-width: 100%; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.18; text-wrap: balance; margin: 0; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3vw, 2.15rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 650; }
p { margin: 0; }
a { color: var(--accent); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--signal); outline-offset: 2px; border-radius: 2px; }

.wrap {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; z-index: 30; background: var(--surface); padding: 8px 12px; }

.eyebrow {
  font: 600 0.78rem/1.4 var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.lede { font-size: 1.2rem; line-height: 1.55; max-width: 44rem; }
.prose { max-width: 42rem; display: grid; gap: 1rem; align-content: start; }
.muted { color: var(--muted); }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: var(--surface);
  border-bottom: 1px solid var(--rule);
}
.site-header .wrap {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 0.25rem 1.5rem; padding-block: 0.65rem;
}
.brand img { display: block; width: auto; height: 1.2rem; }
.nav { display: flex; flex-wrap: wrap; gap: 0.1rem 0.25rem; }
.nav a {
  color: var(--ink); text-decoration: none; font-size: 0.97rem; font-weight: 500;
  padding: 0.35rem 0.6rem; border-radius: 4px;
}
.nav a:hover { background: var(--accent-soft); }
.nav a[aria-current="page"] { color: var(--accent); background: var(--accent-soft); font-weight: 650; }

/* Same colour as the logo banner's background in each mode, so the two join without an edge */
.band { color: var(--band-ink); background-color: var(--band); }
.band .eyebrow { color: var(--band-muted); }
.band a { color: inherit; }
.hero-banner { font-size: 0; }
.hero-banner img { display: block; width: 100%; max-width: 2000px; height: clamp(16rem, 40vw, 34rem); margin-inline: auto; object-fit: cover; }
.hero-text { display: grid; gap: 1rem; justify-items: center; text-align: center; padding-block: 0 clamp(2.5rem, 5vw, 4rem); }
.hero .lede { color: var(--band-muted); }
.page-head { background: var(--band) var(--band-art) center / cover no-repeat; border-bottom: 1px solid var(--rule); }
.page-head .wrap { display: grid; gap: 0.75rem; padding-block: clamp(2rem, 4vw, 3rem); }
.page-head h1 { font-size: clamp(1.9rem, 3.8vw, 2.8rem); }
.page-head .lede { color: var(--band-muted); }

/* Closed-loop diagram */
.schematic { background: var(--panel); }
.schematic .wrap { display: grid; gap: 2rem; padding-block: clamp(2rem, 4vw, 3rem); }
.loop { display: block; width: 100%; height: auto; }
.loop-tall { display: none; max-width: 22rem; margin-inline: auto; }
.loop text { font-family: var(--font-body); fill: var(--band-ink); }
.loop .t-title { font: 650 17px var(--font-display); fill: #fff; }
.loop .t-sub { font-size: 12.5px; fill: #fff; }
.loop .t-sig { font: 500 12.5px var(--font-mono); fill: var(--accent); }
.loop .block { fill: var(--band-2); stroke: rgba(255,255,255,0.45); stroke-width: 1.2; }
/* Fixed values, not --wp tokens: those lighten in dark mode and the white text needs these. */
.loop .step-diagnose .block { fill: #0f766e; }
.loop .step-classify .block { fill: #7c3aed; }
.loop .step-recommend .block { fill: var(--signal); stroke: none; }
.loop .step-recommend text { fill: #12233d; }
.loop .step-learn .block { fill: #b45309; }
.loop .step-validate .block { fill: #1d4ed8; }
.loop .wire { fill: none; stroke: var(--muted); stroke-width: 1.6; }
.loop .fb { stroke: var(--accent); stroke-dasharray: 6 5; }
.loop .head { fill: var(--muted); }
.loop .head-fb { fill: var(--accent); }
.loop .pulse { fill: var(--accent); animation: travel 11s linear infinite; }
.loop-wide .pulse { offset-path: path("M0,104 H986 V224 H62 V122"); }
.loop-tall .pulse { offset-path: path("M30,0 V60 H176 V444 H30 V78"); }
@keyframes travel { from { offset-distance: 0%; } to { offset-distance: 100%; } }
@media (prefers-reduced-motion: reduce) {
  .loop .pulse { animation: none; display: none; }
  html { scroll-behavior: auto; }
}

/* EU acknowledgement */
/* The official file, scaled only: the EU rules do not allow changes to the emblem or its text. */
.eu-mark img { display: block; width: auto; height: 3rem; }

/* Sections */
.section { padding-block: clamp(2.5rem, 5vw, 4rem); }
.section + .section { border-top: 1px solid var(--rule); }
.section-head { display: grid; gap: 0.5rem; margin-bottom: 1.75rem; max-width: 46rem; }
.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2.5rem 3.5rem; }
.split > * { min-width: 0; }

/* Facts ribbon */
.facts { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0; margin: 0; }
.facts div { padding: 1.25rem 1rem; border-left: 1px solid var(--rule); }
.facts div:first-child { border-left: 0; padding-left: 0; }
.facts dt { font: 700 clamp(1.6rem, 3vw, 2.2rem)/1.1 var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.facts dd { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.95rem; }

/* Logos */
.logos { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 0.75rem; list-style: none; margin: 0; padding: 0; }
.logos li { min-width: 0; display: grid; gap: 0.5rem; align-content: start; }
.logo-tile {
  display: grid; place-items: center;
  height: 8rem; padding: 0.9rem;
  background: var(--tile);
  border: 1px solid var(--rule); border-radius: 6px;
}
a.logo-tile:hover { border-color: var(--accent); }
.logo-tile.reversed { background: var(--tile-dark); border-color: var(--tile-dark); }
.logo-tile img { display: block; width: 100%; height: 6.2rem; object-fit: contain; }
.logos .where { font-size: 0.86rem; line-height: 1.35; color: var(--muted); }
.logos .where b { display: block; color: var(--ink); font-weight: 650; }

/* Partner list */
.partners { display: grid; gap: 0; list-style: none; margin: 0; padding: 0; }
.partner {
  display: grid; grid-template-columns: 11rem minmax(0, 1fr); gap: 1.75rem;
  padding-block: 1.75rem; border-top: 1px solid var(--rule);
}
.partner:first-child { border-top: 0; padding-top: 0; }
.partner .body { display: grid; gap: 0.4rem; min-width: 0; align-content: start; }
.tags { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.tag {
  font: 600 0.74rem/1 var(--font-mono);
  padding: 0.3rem 0.45rem; border-radius: 3px;
  background: var(--accent-soft); color: var(--accent);
}
.tag.wp1 { color: var(--wp1); } .tag.wp2 { color: var(--wp2); } .tag.wp3 { color: var(--wp3); }
.tag.wp4 { color: var(--wp4); } .tag.wp5 { color: var(--wp5); }

/* Tables */
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.98rem; }
th, td { text-align: left; padding: 0.6rem 0.9rem 0.6rem 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font: 600 0.76rem/1.3 var(--font-mono); letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); }

/* Work packages: a real sequence */
.wps { display: grid; gap: 0; list-style: none; margin: 0; padding: 0; }
.wp { display: grid; grid-template-columns: 4.5rem minmax(0, 1fr) 10rem; gap: 1rem; padding-block: 1.1rem; border-top: 1px solid var(--rule); }
.wp:first-child { border-top: 0; }
.wp .id { font: 700 1.05rem/1.5 var(--font-mono); }
.wp .lead { font-size: 0.92rem; color: var(--muted); }
.wp p { color: var(--muted); font-size: 0.98rem; }
.wp-1 .id { color: var(--wp1); } .wp-2 .id { color: var(--wp2); } .wp-3 .id { color: var(--wp3); }
.wp-4 .id { color: var(--wp4); } .wp-5 .id { color: var(--wp5); }

/* Exercise record */
.record { background: var(--surface); border: 1px solid var(--rule); border-radius: 6px; padding: 1.25rem 1.4rem; }
.record h3 { margin-top: 0.2rem; }
.record dl { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 0.35rem 1.25rem; margin: 1rem 0 0; font-size: 0.95rem; }
.record dt { font-family: var(--font-mono); font-size: 0.82rem; color: var(--muted); padding-top: 0.15rem; }
.record dd { margin: 0; }

.ticks { display: grid; gap: 0.55rem; padding: 0; margin: 0; list-style: none; }
.ticks li { padding-left: 1.2rem; position: relative; }
.ticks li::before { content: ""; position: absolute; left: 0; top: 0.68em; width: 0.5rem; height: 2px; background: var(--accent); }

/* Status */
.status { font: 600 0.72rem/1 var(--font-mono); padding: 0.28rem 0.42rem; border-radius: 3px; white-space: nowrap; }
.status.done { color: var(--wp4); background: var(--accent-soft); }
.status.active { color: #12233d; background: var(--signal); }
.status.upcoming { color: var(--muted); border: 1px solid var(--rule); }

/* Milestone rail */
.rail { list-style: none; margin: 0; padding: 0; display: grid; }
.rail li {
  display: grid; grid-template-columns: 8.5rem 1.5rem minmax(0, 1fr); gap: 0 0.75rem;
  padding-bottom: 1.15rem; position: relative;
}
.rail .when { font: 500 0.88rem/1.5 var(--font-mono); color: var(--muted); font-variant-numeric: tabular-nums; }
.rail .dot { position: relative; display: block; }
.rail .dot::before {
  content: ""; position: absolute; left: 50%; top: 0.35rem; width: 0.8rem; height: 0.8rem;
  transform: translateX(-50%); border-radius: 50%;
  background: var(--paper); border: 2px solid var(--c, var(--accent)); z-index: 1;
}
.rail li.done .dot::before { background: var(--c, var(--accent)); }
.rail li.active .dot::before { background: var(--signal); }
.rail .dot::after { content: ""; position: absolute; left: 50%; top: 0.4rem; bottom: -1.6rem; width: 2px; transform: translateX(-50%); background: var(--rule); }
.rail li:last-child .dot::after { display: none; }
.rail .what { display: grid; gap: 0.15rem; min-width: 0; }
.rail .what b { font-weight: 650; }
.rail .what span { color: var(--muted); font-size: 0.93rem; }
.year-mark { font: 700 1.05rem var(--font-mono); padding: 0.4rem 0 0.8rem; }

/* Gantt */
.gantt-scroll { overflow-x: auto; background: var(--surface); border: 1px solid var(--rule); border-radius: 6px; }
.gantt { --label: 19rem; position: relative; min-width: 56rem; font-size: 0.86rem; }
.gantt-years { display: grid; grid-template-columns: var(--label) minmax(0, 1fr); border-bottom: 1px solid var(--rule); }
.gantt-years .ruler { position: relative; height: 2rem; }
.gantt-years .y { position: absolute; top: 0; bottom: 0; padding: 0.4rem 0 0 0.35rem; border-left: 1px solid var(--rule); font: 600 0.8rem var(--font-mono); color: var(--muted); }
.gantt-group { padding: 0.55rem 0.8rem 0.25rem; font-weight: 650; font-family: var(--font-display); }
.gantt-group.wp-2 { color: var(--wp2); } .gantt-group.wp-3 { color: var(--wp3); }
.gantt-group.wp-4 { color: var(--wp4); } .gantt-group.wp-5 { color: var(--wp5); }
.gantt-row { display: grid; grid-template-columns: var(--label) minmax(0, 1fr); align-items: center; }
.gantt-row .name { padding: 0.3rem 0.8rem; line-height: 1.3; min-width: 0; }
.gantt-row .name small { display: block; font: 0.74rem var(--font-mono); color: var(--muted); }
.gantt-row .track { position: relative; height: 1.9rem; }
.gantt-row .bar { position: absolute; top: 0.5rem; height: 0.9rem; min-width: 7px; border-radius: 2px; background: var(--c); }
.gantt-row.upcoming .bar { opacity: 0.55; }
.gantt-row.active .bar { outline: 2px solid var(--signal); outline-offset: 1px; }
.gantt-guide { position: absolute; top: 2rem; bottom: 0; width: 1px; background: var(--rule); pointer-events: none; }
.gantt-today { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--signal); pointer-events: none; }
.gantt-today span { position: absolute; top: 0.3rem; left: 5px; font: 700 0.72rem var(--font-mono); background: var(--signal); color: #12233d; padding: 0.1rem 0.3rem; border-radius: 2px; }

/* Targets */
.targets { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.5rem; margin: 0; }
.targets dt { font: 700 1.7rem/1.15 var(--font-mono); font-variant-numeric: tabular-nums; }
.targets dd { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.95rem; }

/* Output groups */
.outputs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2.25rem 3.5rem; }
.outputs > * { min-width: 0; display: grid; gap: 0.7rem; align-content: start; }

/* News */
.post { display: grid; grid-template-columns: 8.5rem minmax(0, 1fr); gap: 0.75rem 1.5rem; }
.post + .post { margin-top: 2rem; padding-top: 2rem; border-top: 1px solid var(--rule); }
.post time { font: 500 0.88rem/1.7 var(--font-mono); color: var(--muted); }
.post .prose { min-width: 0; }
.post figure { margin: 0; }
.post figure img { display: block; width: 100%; height: auto; border-radius: 4px; }
.post figcaption { margin-top: 0.4rem; font-size: 0.88rem; color: var(--muted); }

/* Footer */
.site-footer { background: var(--surface); border-top: 1px solid var(--rule); font-size: 0.92rem; }
.site-footer .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: 1.5rem 3rem; padding-block: 2.25rem; }
.site-footer .disclaimer { color: var(--muted); line-height: 1.55; }
.site-footer .meta { grid-column: 1 / -1; color: var(--muted); border-top: 1px solid var(--rule); padding-top: 1rem; font-size: 0.85rem; }

/* Responsive */
@media (max-width: 62rem) {
  .logos { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .facts { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .facts div:nth-child(4) { border-left: 0; padding-left: 0; }
  .targets { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 46rem) {
  body { font-size: 1rem; }
  .split, .outputs { grid-template-columns: minmax(0, 1fr); }
  .loop-wide { display: none; }
  .loop-tall { display: block; }
  .partner { grid-template-columns: minmax(0, 1fr); gap: 0.9rem; }
  .partner .logo-tile { max-width: 13rem; }
  .wp { grid-template-columns: 3.5rem minmax(0, 1fr); }
  .wp .lead { grid-column: 2; }
  .post { grid-template-columns: minmax(0, 1fr); }
  .site-footer .wrap { grid-template-columns: minmax(0, 1fr); }
  .site-header { position: static; }
}
@media (max-width: 30rem) {
  .brand img { height: 1.15rem; }
  .logos { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts div, .facts div:nth-child(4) { border-left: 0; padding: 0.9rem 0.75rem 0.9rem 0; }
  .rail li { grid-template-columns: 1.5rem minmax(0, 1fr); gap: 0 0.6rem; }
  .rail .when { grid-column: 2; grid-row: 1; }
  .rail .dot { grid-column: 1; grid-row: 1 / span 2; }
  .rail .what { grid-column: 2; grid-row: 2; }
}