/* ============================================================
   WISSENSSPEICHER · Design-System v1.0 (FREEZE-KANDIDAT)
   Konzept: "Zwei Fäden, ein Knoten" — Geld × Zeit = €/h
   Geld-Faden: blau (Rechenkette GuV→BAB→MSS→Kalkulation)
   Zeit-Faden: grün (OEE-Kaskade: geplante Zeit→h_prod)
   Basis-Tokens identisch mit Hauptseite + Artikeln
   ============================================================ */
:root {
  --ink:#0a0f1a; --ink-80:#1a2236; --ink-60:#334155; --ink-40:#64748b;
  --ink-20:#94a3b8; --ink-10:#e2e8f0; --paper:#fafbfd; --white:#fff;
  --geld:#2563eb; --geld-v:#3b82f6; --geld-s:rgba(59,130,246,.10);
  --zeit:#10b981; --zeit-s:rgba(16,185,129,.09);
  --amber:#f59e0b; --amber-s:rgba(245,158,11,.09);
  --display:'Playfair Display',Georgia,serif;
  --sans:'Source Sans 3',system-ui,sans-serif;
  --mono:'JetBrains Mono',monospace;
}
@font-face{font-family:'Playfair Display';src:url('../fonts/playfair-display-v37-latin-regular.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Playfair Display';src:url('../fonts/playfair-display-v37-latin-500.woff2') format('woff2');font-weight:500;font-display:swap}
@font-face{font-family:'Source Sans 3';src:url('../fonts/source-sans-3-v18-latin-regular.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Source Sans 3';src:url('../fonts/source-sans-3-v18-latin-600.woff2') format('woff2');font-weight:600;font-display:swap}
@font-face{font-family:'JetBrains Mono';src:url('../fonts/jetbrains-mono-v20-latin-regular.woff2') format('woff2');font-weight:400;font-display:swap}

*{margin:0;padding:0;box-sizing:border-box}
body{font-family:var(--sans);color:var(--ink-80);background:var(--paper);line-height:1.7;font-size:1.04rem}
main{max-width:860px;margin:0 auto;padding:2.4rem 1.4rem 4rem}
h2{font-family:var(--display);font-weight:500;font-size:1.5rem;color:var(--ink);margin:2.6rem 0 .9rem}
h3{font-size:1.06rem;font-weight:600;color:var(--ink);margin:1.9rem 0 .5rem}
p{margin-bottom:1.05rem}
strong{color:var(--ink)}
a{color:var(--geld)}

/* ---------- Topbar ---------- */
.topbar{background:var(--ink);padding:.85rem 0;position:sticky;top:0;z-index:20}
.topbar-inner{max-width:860px;margin:0 auto;padding:0 1.4rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.topbar a{color:#fff;text-decoration:none;font-weight:600;font-size:.94rem}
.topbar .crumb{color:var(--ink-20);font-size:.82rem;font-weight:400}
.topbar .crumb a{color:var(--ink-20);font-weight:400}

/* ---------- SIGNATUR 1: Schriftfeld (Zeichnungskopf) ---------- */
.schriftfeld{background:linear-gradient(160deg,var(--ink) 0%,var(--ink-80) 100%);color:#fff;
  border-bottom:3px solid var(--geld)}
.schriftfeld-inner{max-width:860px;margin:0 auto;padding:2.2rem 1.4rem 0}
.sf-meta{display:flex;flex-wrap:wrap;gap:.5rem 2rem;font-family:var(--mono);font-size:.7rem;
  letter-spacing:.1em;text-transform:uppercase;color:var(--ink-20);padding-bottom:1rem;
  border-bottom:1px solid rgba(255,255,255,.09)}
.sf-meta b{color:var(--geld-v);font-weight:400}
.schriftfeld h1{font-family:var(--display);font-weight:500;font-size:clamp(1.8rem,4.4vw,2.5rem);
  line-height:1.16;margin:1.2rem 0 .5rem}
.sf-sub{color:var(--ink-20);font-size:1.08rem;max-width:640px;margin-bottom:1.6rem}
/* Werteleiste: die Kernzahlen des Kapitels als Zeichnungs-Stückliste */
.sf-werte{display:flex;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.09)}
.sf-wert{padding:.85rem 1.6rem .95rem 0;margin-right:1.6rem}
.sf-wert .w{font-family:var(--mono);font-size:1.25rem;color:#fff}
.sf-wert .l{font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-40)}
.sf-wert.zeit .w{color:var(--zeit)}
.sf-wert.geld .w{color:var(--geld-v)}

/* ---------- SIGNATUR 2: Rechenketten-Navigation (Geld-Faden) ---------- */
.kette{display:flex;align-items:center;gap:0;overflow-x:auto;padding:1.1rem 0 .3rem;
  font-family:var(--mono);font-size:.72rem;letter-spacing:.04em}
.kette a{display:flex;align-items:center;gap:0;text-decoration:none;color:var(--ink-40);white-space:nowrap}
.kette .glied{padding:.35rem .7rem;border:1px solid var(--ink-10);border-radius:999px;background:#fff}
.kette a.aktiv .glied{background:var(--geld);border-color:var(--geld);color:#fff;font-weight:600}
.kette a.zeit-glied .glied{border-color:var(--zeit);color:var(--zeit)}
.kette .faden{width:22px;height:1px;background:var(--ink-10);flex-shrink:0}
.kette a.aktiv + .faden,.kette .faden.voll{background:var(--geld)}
/* Der Knoten: wo Zeit- und Geld-Faden sich treffen */
.knoten{width:9px;height:9px;border-radius:50%;background:#fff;border:2.5px solid var(--geld);
  box-shadow:0 0 0 2.5px var(--zeit);flex-shrink:0;margin:0 6px}

/* ---------- SIGNATUR 3: Zeitkaskade (OEE, Zeit-Faden) ---------- */
.kaskade{margin:1.7rem 0 2rem;font-family:var(--mono);font-size:.78rem}
.kaskade-zeile{display:flex;align-items:center;gap:.7rem;margin-bottom:.45rem}
.kaskade-label{width:198px;flex-shrink:0;text-align:right;color:var(--ink-60);line-height:1.3}
.kaskade-balken{height:22px;border-radius:3px;position:relative;min-width:3px}
.kaskade-balken.brutto{background:var(--ink-10)}
.kaskade-balken.verlust{background:var(--amber);opacity:.75}
.kaskade-balken.prod{background:var(--zeit)}
.kaskade-wert{color:var(--ink);white-space:nowrap}
.kaskade-fuss{margin-top:.6rem;padding-left:calc(198px + .7rem);color:var(--ink-40);font-size:.72rem}

/* ---------- Maßlinien-Divider ---------- */
.masslinie{display:flex;align-items:center;gap:.8rem;margin:2.8rem 0;color:var(--ink-40);
  font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase}
.masslinie::before,.masslinie::after{content:'';flex:1;height:1px;background:var(--ink-10);position:relative}
.masslinie::before{border-left:1px solid var(--ink-20);height:9px;background:
  linear-gradient(to bottom,transparent 4px,var(--ink-10) 4px,var(--ink-10) 5px,transparent 5px)}
.masslinie::after{border-right:1px solid var(--ink-20);height:9px;background:
  linear-gradient(to bottom,transparent 4px,var(--ink-10) 4px,var(--ink-10) 5px,transparent 5px)}

/* ---------- Schritt-Marker ---------- */
.schritt{display:flex;align-items:baseline;gap:.8rem;margin:2.4rem 0 .8rem}
.schritt .nr{font-family:var(--mono);font-size:.72rem;color:var(--geld);border:1px solid var(--geld);
  border-radius:3px;padding:.15rem .5rem;white-space:nowrap}
.schritt h3{margin:0}

/* ---------- Kastentypen (5) ---------- */
.k{border-left:3px solid;border-radius:0 8px 8px 0;padding:1.1rem 1.3rem;margin:1.6rem 0}
.k p:last-child{margin-bottom:0}
.k .kt{font-weight:600;color:var(--ink);display:block;margin-bottom:.35rem}
.k-erkenntnis{background:var(--zeit-s);border-color:var(--zeit)}
.k-warnung{background:var(--amber-s);border-color:var(--amber)}
.k-beispiel{background:var(--geld-s);border-color:var(--geld)}
.k-praxis{background:#fff;border-color:var(--ink-20);border:1px solid var(--ink-10);border-left:3px solid var(--ink-60)}
.k-formel{background:var(--ink);border-color:var(--geld);color:var(--ink-10);
  font-family:var(--mono);font-size:.92rem;line-height:1.9}
.k-formel .kt{color:var(--ink-20);font-family:var(--sans)}
.k-formel b{color:#fff;font-weight:400}
.k-formel .erg{color:var(--zeit)}

/* ---------- BAB-Tabellen ---------- */
table{width:100%;border-collapse:collapse;margin:1.4rem 0;font-size:.92rem}
caption{caption-side:top;text-align:left;font-family:var(--mono);font-size:.68rem;
  letter-spacing:.1em;text-transform:uppercase;color:var(--ink-40);padding-bottom:.5rem}
th{text-align:left;font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink-40);border-bottom:2px solid var(--ink-80);
  padding:.45rem .6rem;font-weight:400}
td{padding:.5rem .6rem;border-bottom:1px solid var(--ink-10);vertical-align:top}
td.z,th.z{text-align:right;font-family:var(--mono);font-variant-numeric:tabular-nums;white-space:nowrap}
tr.summe td{border-top:2px solid var(--ink-80);border-bottom:3px double var(--ink-80);
  font-weight:600;color:var(--ink);background:var(--geld-s)}
tr.summe td.z{font-family:var(--mono);font-weight:400}
td .quelle{display:block;font-size:.76rem;color:var(--ink-40)}
.tab-scroll{overflow-x:auto}

/* ---------- KPI-Chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin:1rem 0 1.4rem}
.chip{font-family:var(--mono);font-size:.76rem;padding:.3rem .7rem;border-radius:999px;
  border:1px solid var(--ink-10);background:#fff;color:var(--ink-60)}
.chip b{color:var(--ink);font-weight:400}
.chip.zeit{border-color:var(--zeit);color:var(--zeit)}
.chip.geld{border-color:var(--geld);color:var(--geld)}

/* ---------- Checkliste ---------- */
.check{list-style:none;margin:1.2rem 0}
.check li{display:flex;gap:.7rem;padding:.5rem 0;border-bottom:1px solid var(--ink-10);align-items:baseline}
.check .nr{font-family:var(--mono);font-size:.72rem;color:var(--ink-40);width:2rem;flex-shrink:0}
.check .q{margin-left:auto;font-size:.78rem;color:var(--ink-40);font-style:italic;white-space:nowrap}

/* ---------- Kapitel-Fußnavigation ---------- */
.kap-nav{display:flex;justify-content:space-between;gap:1rem;margin-top:3.4rem;
  padding-top:1.4rem;border-top:1px solid var(--ink-10)}
.kap-nav a{text-decoration:none;color:var(--ink-60);max-width:46%}
.kap-nav .dir{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-40)}
.kap-nav .t{font-weight:600;color:var(--ink)}

.footer{background:var(--ink);color:var(--ink-20);padding:1.5rem 0;font-size:.84rem;margin-top:2rem}
.footer-inner{max-width:860px;margin:0 auto;padding:0 1.4rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.6rem}
.footer a{color:var(--ink-20)}

/* ---------- Print: Kalkulatoren drucken Kapitel ---------- */
@media print{
  .topbar,.kap-nav,.footer{display:none}
  body{background:#fff;font-size:10.5pt}
  .schriftfeld{background:#fff!important;color:#000;border-bottom:2px solid #000}
  .schriftfeld h1,.sf-wert .w{color:#000}
  .sf-sub,.sf-meta{color:#444}
  .k{break-inside:avoid}
  table{break-inside:avoid;font-size:9.5pt}
  .k-formel{background:#f2f2f2;color:#000}
  .k-formel b,.k-formel .erg{color:#000}
  a{color:inherit;text-decoration:none}
}
@media (max-width:640px){
  .kaskade-label{width:110px;font-size:.68rem}
  .sf-wert{margin-right:1rem;padding-right:1rem}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}