:root {
  --ink: #1C2128;
  --paper: #EDEEE7;
  --surface: #F8F8F3;
  --steel: #5B6470;
  --steel-faint: #A9AEA0;
  --signal: #A8672A;
  --signal-soft: #E4D2B8;
  --pressure: #3F6270;
  --pressure-soft: #DCE6E8;
  --border: rgba(28,33,40,0.14);
  --border-strong: rgba(28,33,40,0.24);
  --font-display: Georgia, 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #EDEAE0;
    --paper: #14171C;
    --surface: #1B1F26;
    --steel: #9AA1AC;
    --steel-faint: #6B727C;
    --signal: #DDA362;
    --signal-soft: #3A2E1E;
    --pressure: #7FA6B4;
    --pressure-soft: #202E32;
    --border: rgba(237,234,224,0.14);
    --border-strong: rgba(237,234,224,0.26);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.shell { max-width: 780px; margin: 0 auto; padding: 0 1.5rem; }
.shell-wide { max-width: 900px; margin: 0 auto; padding: 0 1.5rem; }

/* ---------- Navigation ---------- */
.nav {
  border-bottom: 1px solid var(--border);
  background: var(--paper);
}
.nav-inner {
  max-width: 900px; margin: 0 auto; padding: 0.9rem 1.5rem;
  display: flex; align-items: baseline; gap: 1.5rem; flex-wrap: wrap;
}
.nav-brand {
  font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--ink); text-decoration: none; font-weight: 500;
}
.nav-links { display: flex; gap: 1.1rem; flex-wrap: wrap; margin-left: auto; }
.nav-links a {
  font-family: var(--font-mono); font-size: 12.5px; color: var(--steel);
  text-decoration: none; letter-spacing: 0.02em;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--signal); }

/* ---------- Typografie ---------- */
.eyebrow {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.09em;
  text-transform: uppercase; color: var(--steel); display: block; margin-bottom: 0.4rem;
}
h1 {
  font-family: var(--font-display); font-weight: 700; font-style: italic;
  font-size: clamp(1.9rem, 4.6vw, 2.7rem); line-height: 1.12;
  margin: 0.5rem 0 1rem; text-wrap: balance;
}
h2 {
  font-family: var(--font-display); font-weight: 700; font-style: italic;
  font-size: clamp(1.35rem, 3vw, 1.7rem); margin: 0.5rem 0 1rem; text-wrap: balance;
}
h3 {
  font-family: var(--font-body); font-weight: 500; font-size: 1.05rem;
  margin: 1.6rem 0 0.5rem;
}
p { max-width: 64ch; margin: 0 0 1rem; }
.lead { color: var(--steel); font-size: 1.05rem; max-width: 58ch; }
a { color: var(--signal); }

header.page { padding: 3.5rem 0 1rem; }
section.block { padding: 2.8rem 0; border-top: 1px solid var(--border); }

/* ---------- Tabellen ---------- */
.table-wrap { overflow-x: auto; margin: 1.2rem 0; }
table {
  border-collapse: collapse; width: 100%; font-size: 14px;
  font-variant-numeric: tabular-nums;
}
th, td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; vertical-align: top; }
th { background: var(--surface); font-weight: 500; font-size: 13px; }
td code, th code { font-family: var(--font-mono); font-size: 12.5px; }

/* ---------- Bausteine ---------- */
.grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px; background: var(--border); border: 1px solid var(--border); margin: 1.5rem 0;
}
.grid > div { background: var(--surface); padding: 1.2rem 1.3rem; }
.grid .k {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--signal); display: block; margin-bottom: 0.5rem;
}
.grid p { margin: 0; color: var(--steel); font-size: 0.95rem; max-width: none; }

.steps { margin: 1.5rem 0 0; }
.step {
  display: grid; grid-template-columns: 48px 1fr; gap: 1.1rem;
  padding: 1.3rem 0; border-top: 1px solid var(--border);
}
.step:first-child { border-top: none; }
.step .num { font-family: var(--font-mono); font-size: 13px; color: var(--signal); padding-top: 0.2rem; }
.step h3 { margin: 0 0 0.3rem; font-size: 1.02rem; }
.step .when {
  font-family: var(--font-mono); font-size: 11px; color: var(--steel-faint);
  text-transform: uppercase; letter-spacing: 0.05em; margin-left: 0.5rem;
}
.step p { margin: 0; color: var(--steel); font-size: 0.97rem; max-width: 56ch; }

.callout {
  background: var(--signal-soft); border-radius: 6px; padding: 1.3rem 1.5rem; margin: 1.5rem 0;
}
.callout p { color: var(--ink); max-width: none; }
.callout p:last-child { margin-bottom: 0; }
.callout .label {
  display: block; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.07em;
  text-transform: uppercase; color: var(--signal); margin-bottom: 0.6rem;
}

.note {
  border-left: 3px solid var(--pressure); background: var(--pressure-soft);
  border-radius: 0 6px 6px 0; padding: 1.1rem 1.4rem; margin: 1.5rem 0;
}
.note p, .note ul { color: var(--ink); max-width: none; }
.note p:last-child, .note ul:last-child { margin-bottom: 0; }
.note ul { margin: 0; padding-left: 1.2rem; }
.note li { margin-bottom: 0.45rem; font-size: 0.98rem; }
.note li:last-child { margin-bottom: 0; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; margin: 1.5rem 0; }
.card {
  border: 1px solid var(--border); border-radius: 6px; padding: 1.3rem 1.4rem;
  background: var(--surface); text-decoration: none; color: var(--ink); display: block;
  transition: border-color 0.15s ease;
}
.card:hover { border-color: var(--signal); }
.card .date {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.05em;
  color: var(--signal); display: block; margin-bottom: 0.5rem;
}
.card strong { display: block; font-weight: 500; margin-bottom: 0.35rem; }
.card span.desc { color: var(--steel); font-size: 0.93rem; }

.cta {
  display: inline-flex; align-items: center; gap: 0.5rem; margin-top: 0.6rem;
  font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.02em;
  color: var(--ink); text-decoration: none; border: 1px solid var(--border-strong);
  border-radius: 3px; padding: 0.6rem 1rem; background: var(--surface);
  transition: border-color 0.15s ease;
}
.cta:hover { border-color: var(--signal); }
.cta:focus-visible { outline: 2px solid var(--signal); outline-offset: 2px; }

.diagram { margin: 1.8rem 0; overflow-x: auto; }
.diagram svg { display: block; min-width: 560px; width: 100%; height: auto; }

.meta {
  font-family: var(--font-mono); font-size: 11.5px; line-height: 1.75;
  color: var(--steel-faint); max-width: 68ch;
}

.status-line {
  display: flex; gap: 0.6rem; align-items: baseline; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 12px; color: var(--steel);
  margin: 0 0 1.5rem;
}
.status-line .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--signal); display: inline-block;
}

footer.site {
  border-top: 1px solid var(--border); padding: 2rem 0 3rem; margin-top: 2rem;
}
footer.site .meta a { color: var(--steel); }

@media (max-width: 560px) {
  .step { grid-template-columns: 32px 1fr; gap: 0.7rem; }
  .nav-links { margin-left: 0; gap: 0.9rem; }
}