/* =====================================================================
   AUTOMATION & OBSERVATORY — shared workspace design system
   ---------------------------------------------------------------------
   One stylesheet for the hub + all section pages. The workspace identity
   is GREEN (--brand, constant everywhere: nav, footer, focus). Each
   section page overrides only --accent / --accent-wash (its crop colour)
   in a small inline <style> block; everything else is inherited.
   Light + dark, both driven by tokens. No external fonts or CDNs.
   ===================================================================== */

:root {
  /* neutrals — warm paper with a faint green bias (chosen, not default) */
  --bg:#F7FAF6; --bg-2:#EEF3EA; --surface:#FFFFFF; --surface-2:#F4F8F1;
  --line:#DDE7D8; --line-2:#C7D6BF;
  --ink:#182019; --ink-2:#4C5A4E; --ink-3:#7C8A7E;

  /* workspace brand green — constant on every page */
  --brand:#1F9E6A; --brand-2:#147A52; --brand-wash:#E2F3EA;

  /* section accent — defaults to brand; pages override these two + wash */
  --accent:var(--brand); --accent-wash:var(--brand-wash);

  /* semantics */
  --good:#1C8A66; --warn:#C4881A; --bad:#C23B3F;

  --mono:ui-monospace,"SF Mono","JetBrains Mono","Cascadia Code",Menlo,Consolas,monospace;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --maxw:1120px; --r:14px;
  --shadow:0 1px 2px rgba(20,40,25,.05),0 10px 30px rgba(20,40,25,.06);
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0A0F0B; --bg-2:#0D130E; --surface:#121A14; --surface-2:#16211A;
    --line:#22301F; --line-2:#33472F;
    --ink:#E8F0E6; --ink-2:#A2B0A4; --ink-3:#6B7A6D;
    --brand:#45C88C; --brand-2:#38B47C; --brand-wash:#0F2A1E;
    --accent:var(--brand); --accent-wash:var(--brand-wash);
    --good:#43C79E; --warn:#E0A83C; --bad:#F0686C;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 14px 42px rgba(0,0,0,.4);
    color-scheme:dark;
  }
}
/* explicit toggle overrides — must win in both directions */
:root[data-theme="light"]{
  --bg:#F7FAF6;--bg-2:#EEF3EA;--surface:#FFFFFF;--surface-2:#F4F8F1;--line:#DDE7D8;--line-2:#C7D6BF;
  --ink:#182019;--ink-2:#4C5A4E;--ink-3:#7C8A7E;--brand:#1F9E6A;--brand-2:#147A52;--brand-wash:#E2F3EA;
  --good:#1C8A66;--warn:#C4881A;--bad:#C23B3F;color-scheme:light;
}
:root[data-theme="dark"]{
  --bg:#0A0F0B;--bg-2:#0D130E;--surface:#121A14;--surface-2:#16211A;--line:#22301F;--line-2:#33472F;
  --ink:#E8F0E6;--ink-2:#A2B0A4;--ink-3:#6B7A6D;--brand:#45C88C;--brand-2:#38B47C;--brand-wash:#0F2A1E;
  --good:#43C79E;--warn:#E0A83C;--bad:#F0686C;color-scheme:dark;
}

*{box-sizing:border-box}
@media (prefers-reduced-motion: reduce){*{animation:none!important;transition:none!important}html{scroll-behavior:auto}}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-size:16px}
::selection{background:var(--accent-wash)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
a{color:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;text-wrap:balance}
img{max-width:100%}

/* ---------- top nav (workspace-wide) ---------- */
nav.bar{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);background:color-mix(in srgb,var(--bg) 82%,transparent);border-bottom:1px solid var(--line)}
nav.bar .wrap{display:flex;align-items:center;gap:16px;height:58px}
.brand{font-family:var(--mono);font-weight:700;font-size:13.5px;letter-spacing:.01em;display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--ink);white-space:nowrap}
.brand .beacon{width:9px;height:9px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 0 color-mix(in srgb,var(--brand) 55%,transparent);animation:pulse 2.6s infinite;flex:none}
@keyframes pulse{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--brand) 55%,transparent)}70%{box-shadow:0 0 0 7px transparent}100%{box-shadow:0 0 0 0 transparent}}
.links{display:flex;gap:2px;margin-left:auto;flex-wrap:wrap}
.links a{font-family:var(--mono);font-size:12.5px;letter-spacing:.02em;color:var(--ink-2);text-decoration:none;padding:7px 11px;border-radius:8px}
.links a:hover{color:var(--ink);background:var(--surface-2)}
.links a[aria-current="page"]{color:var(--accent);background:var(--accent-wash)}
.toggle{font-family:var(--mono);font-size:12px;cursor:pointer;border:1px solid var(--line-2);background:var(--surface);color:var(--ink-2);padding:7px 12px;border-radius:8px}
.toggle:hover{color:var(--ink);border-color:var(--accent)}
.toggle:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media (max-width:900px){.links a{padding:6px 8px}.brand span.full{display:none}}

/* ---------- hero ---------- */
.hero{padding:66px 0 30px}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);font-weight:600;display:inline-flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent);opacity:.7}
.codechip{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);background:var(--accent-wash);border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);border-radius:999px;padding:6px 13px}
.hero h1{font-size:clamp(34px,5.6vw,56px);font-weight:800;line-height:1.04;margin-top:20px}
.hero h1 .hl{color:var(--accent)}
.lede{color:var(--ink-2);font-size:18px;max-width:62ch;margin-top:16px}
.hero-rule{height:3px;width:100%;background:linear-gradient(90deg,var(--accent),transparent);margin-top:30px;border-radius:2px}

/* ---------- section scaffolding ---------- */
section{padding:56px 0;border-top:1px solid var(--line)}
section:first-of-type{border-top:none}
.lab{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:700;display:flex;align-items:center;gap:9px;margin-bottom:20px}
.lab::before{content:"";width:16px;height:1px;background:var(--accent)}
h2.title{font-size:clamp(24px,3.4vw,34px);font-weight:800}
.sec-head{max-width:66ch}
.sec-head p{color:var(--ink-2);font-size:16.5px;margin-top:12px}

/* ---------- cards & bookmark tiles ---------- */
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow)}
.card h3{font-size:17px;margin-bottom:6px}
.card p{color:var(--ink-2);font-size:14px;margin:6px 0 0}

/* clickable bookmark tile */
a.tile{display:flex;flex-direction:column;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px;box-shadow:var(--shadow);text-decoration:none;color:inherit;transition:transform .14s ease,border-color .14s ease}
a.tile:hover{transform:translateY(-3px);border-color:var(--accent)}
a.tile .ic{font-size:22px;line-height:1}
a.tile .tt{font-weight:700;font-size:15.5px;display:flex;align-items:center;gap:8px}
a.tile .dd{color:var(--ink-2);font-size:13px}
a.tile .meta{margin-top:auto;font-family:var(--mono);font-size:11.5px;color:var(--ink-3);display:flex;align-items:center;gap:6px;padding-top:8px}
a.tile .go{color:var(--accent);font-family:var(--mono);font-size:12px;font-weight:600;margin-top:auto;padding-top:8px}

/* big section-portal tile (hub) — uses each section's own colour via inline --sec */
a.portal{position:relative;overflow:hidden;border-top:3px solid var(--sec,var(--brand))}
a.portal:hover{border-color:var(--sec,var(--brand))}
a.portal .crop{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--sec,var(--brand));font-weight:700}
a.portal .ic{font-size:30px}
a.portal .go{color:var(--sec,var(--brand))}

/* pills / badges */
.pill{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:11px;letter-spacing:.04em;font-weight:600;padding:4px 10px;border-radius:999px;text-transform:uppercase}
.pill.accent{background:var(--accent-wash);color:var(--accent)}
.pill.good{background:color-mix(in srgb,var(--good) 15%,transparent);color:var(--good)}
.pill.warn{background:color-mix(in srgb,var(--warn) 15%,transparent);color:var(--warn)}
.pill.bad{background:color-mix(in srgb,var(--bad) 15%,transparent);color:var(--bad)}
.pill.mut{background:var(--surface-2);color:var(--ink-3);border:1px solid var(--line)}
.dot{width:8px;height:8px;border-radius:50%;background:currentColor}

/* group header on the hub bookmark board */
.board-group{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);font-weight:700;margin:34px 0 14px;display:flex;align-items:center;gap:10px}
.board-group::after{content:"";flex:1;height:1px;background:var(--line)}

/* lists */
ul.clean{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:8px}
ul.clean li{font-size:14px;color:var(--ink-2);padding-left:22px;position:relative;line-height:1.5}
ul.clean li::before{content:"→";position:absolute;left:0;color:var(--accent);font-family:var(--mono)}
ul.clean li b{color:var(--ink)}

/* code + mono */
code,.m{font-family:var(--mono);font-size:.92em}
.codeblock{background:#0b120d;border:1px solid var(--line-2);border-radius:12px;padding:16px 18px;font-family:var(--mono);font-size:13px;color:#dfeadf;overflow-x:auto;line-height:1.85}
.codeblock .c{color:#5bd39a}.codeblock .d{color:#7c8a7e}.codeblock .k{color:#e0a83c}
.mono-path{font-family:var(--mono);font-size:12.5px;color:var(--accent);background:var(--accent-wash);padding:2px 7px;border-radius:6px}

/* simple table */
.wrap-x{overflow-x:auto}
table.data{width:100%;border-collapse:collapse;font-size:13.5px}
table.data th,table.data td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
table.data thead th{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);font-weight:600}
table.data tr:last-child td{border-bottom:none}
table.data code{color:var(--accent)}

/* KPI strip */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.kpis>div{background:var(--surface);padding:18px 16px}
.kpis .n{font-family:var(--mono);font-size:24px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums;color:var(--accent)}
.kpis .l{font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);margin-top:5px}
@media (max-width:720px){.kpis{grid-template-columns:repeat(2,1fr)}}

.mt8{margin-top:8px}.mt16{margin-top:16px}.mt24{margin-top:24px}.mt40{margin-top:40px}
.note{font-family:var(--mono);font-size:12px;color:var(--ink-3);margin-top:16px;line-height:1.7}
.note b{color:var(--ink-2)}

/* ---------- footer (workspace-wide) ---------- */
footer.site{border-top:3px solid var(--brand);margin-top:20px;padding:34px 0 60px;color:var(--ink-3);font-family:var(--mono);font-size:12.5px;background:var(--surface-2)}
footer.site .row{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;align-items:center}
footer.site a{color:var(--brand);text-decoration:none}
footer.site a:hover{text-decoration:underline}
footer.site .back{display:inline-flex;align-items:center;gap:7px;font-weight:700}
footer.site .fine{margin-top:14px;color:var(--ink-3);max-width:82ch;line-height:1.7}