/* =============================================================================
   Fellowship-Site, Bildschirm-Stylesheet. Marke "Stephan Gensch".
   Palette und Typo wie Docs/doc.css und Decks/css/stephan-gensch.css:
     Type:    Space Grotesk (Display), Inter (Body), JetBrains Mono (Kicker/Code)
     Palette: Lime "Signal" #A3E635/#84CC16, text-safe #3F6212
              Apricot "Warmth" #F8B07A/#F97316, text-safe #C2410C
              Coal/Zinc "Ink" #1A1A1E + Zinc-Skala
   Regel: ein Lime-Fokus pro Ansicht, nie kleine Lime-Schrift auf Weiss
          (dafuer #3F6212). Fonts sind lokal, keine externen Anfragen.
   ============================================================================= */

@font-face { font-family: 'Space Grotesk'; src: url('/assets/fonts/SpaceGrotesk.ttf') format('truetype'); font-weight: 300 700; font-style: normal; font-display: swap; }
@font-face { font-family: 'Inter'; src: url('/assets/fonts/Inter.ttf') format('truetype'); font-weight: 100 900; font-style: normal; font-display: swap; }
@font-face { font-family: 'JetBrains Mono'; src: url('/assets/fonts/JetBrainsMono.ttf') format('truetype'); font-weight: 100 800; font-style: normal; font-display: swap; }

:root {
  --display: 'Space Grotesk', ui-sans-serif, system-ui, sans-serif;
  --body: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --lime: #84CC16;
  --lime-bright: #A3E635;
  --lime-ink: #3F6212;
  --apricot: #F8B07A;
  --orange-ink: #C2410C;

  /* Light (Default) */
  --bg: #FFFFFF;
  --surface: #FAFAFA;
  --surface-2: #F4F4F5;
  --text: #1A1A1E;
  --muted: #52525B;
  --line: #E4E4E7;
  --link: #3F6212;
  --accent: #84CC16;
  --code: #C2410C;
  --header-bg: rgba(255, 255, 255, 0.86);
  --shadow: 0 1px 2px rgba(24, 24, 27, 0.04), 0 8px 24px rgba(24, 24, 27, 0.06);
  --maxw: 1280px;
  --sidebar-w: 264px;
}

:root[data-theme='dark'] {
  --bg: #1A1A1E;
  --surface: #212127;
  --surface-2: #27272A;
  --text: #FAFAFA;
  --muted: #A1A1AA;
  --line: #3A3A42;
  --link: #A3E635;
  --accent: #A3E635;
  --code: #F8B07A;
  --header-bg: rgba(26, 26, 30, 0.86);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 32px rgba(0, 0, 0, 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #1A1A1E; --surface: #212127; --surface-2: #27272A;
    --text: #FAFAFA; --muted: #A1A1AA; --line: #3A3A42;
    --link: #A3E635; --accent: #A3E635; --code: #F8B07A;
    --header-bg: rgba(26, 26, 30, 0.86);
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 12px 32px rgba(0,0,0,.4);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: var(--link); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
img, svg { max-width: 100%; }

/* ---- Header ---------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 14px;
  height: 60px; padding: 0 20px;
  background: var(--header-bg);
  backdrop-filter: saturate(150%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--text); margin-right: auto; }
.brand-mark svg { width: 34px; height: 34px; display: block; border-radius: 9px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-kicker { font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--lime-ink); }
:root[data-theme='dark'] .brand-kicker { color: var(--lime-bright); }
@media (prefers-color-scheme: dark) { :root:not([data-theme='light']) .brand-kicker { color: var(--lime-bright); } }
.brand-title { font-family: var(--display); font-weight: 600; font-size: 18px; letter-spacing: -0.01em; }

.theme-toggle, .nav-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 9px;
  background: var(--surface); color: var(--text); cursor: pointer; padding: 0;
}
.theme-toggle:hover, .nav-toggle:hover { border-color: var(--muted); }
.theme-toggle .i-moon { display: none; }
:root[data-theme='dark'] .theme-toggle .i-sun { display: none; }
:root[data-theme='dark'] .theme-toggle .i-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .theme-toggle .i-sun { display: none; }
  :root:not([data-theme='light']) .theme-toggle .i-moon { display: block; }
}
.nav-toggle { display: none; flex-direction: column; gap: 4px; }
.nav-toggle span { width: 18px; height: 2px; background: currentColor; border-radius: 2px; }

/* ---- Layout ---------------------------------------------------------------- */
.layout { display: flex; max-width: var(--maxw); margin: 0 auto; align-items: flex-start; }
.sidebar {
  position: sticky; top: 60px; align-self: flex-start;
  width: var(--sidebar-w); flex: 0 0 var(--sidebar-w);
  height: calc(100vh - 60px); overflow-y: auto;
  padding: 24px 12px 40px 20px; border-right: 1px solid var(--line);
}
.nav-section { margin-bottom: 18px; }
.nav-section-title { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin: 0 0 6px 8px; }
.sidebar ul { list-style: none; margin: 0; padding: 0; }
.nav-item {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 10px; border-radius: 8px;
  font-size: 14.5px; color: var(--text); text-decoration: none;
  border-left: 2px solid transparent;
}
.nav-item:hover { background: var(--surface-2); }
.nav-item.is-current { background: var(--surface-2); border-left-color: var(--accent); font-weight: 600; }
.nav-badge {
  margin-left: auto; font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.06em;
  padding: 1px 5px; border-radius: 5px; color: var(--muted); border: 1px solid var(--line);
}

.content { flex: 1 1 auto; min-width: 0; padding: 20px 40px 80px; }
.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 210px; gap: 40px; }
@media (max-width: 1080px) { .content-grid { grid-template-columns: minmax(0, 1fr); } .toc { display: none; } }

.breadcrumb { font-family: var(--mono); font-size: 12px; color: var(--muted); margin-bottom: 8px; }
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--link); }
.crumb-sep { margin: 0 7px; opacity: 0.5; }

/* ---- TOC ------------------------------------------------------------------- */
.toc { position: sticky; top: 84px; align-self: start; max-height: calc(100vh - 110px); overflow-y: auto; font-size: 13.5px; }
.toc-title { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin: 4px 0 8px; }
.toc ul { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--line); }
.toc li { margin: 0; }
.toc a { display: block; padding: 3px 0 3px 12px; color: var(--muted); text-decoration: none; border-left: 2px solid transparent; margin-left: -1px; }
.toc a:hover { color: var(--link); border-left-color: var(--accent); }
.toc-l3 a { padding-left: 24px; font-size: 12.5px; }

/* ---- Prose ----------------------------------------------------------------- */
.prose { max-width: 46rem; }
.prose > *:first-child { margin-top: 0; }
.prose h1 { font-family: var(--display); font-weight: 700; font-size: 2.1rem; line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 0.5em; }
.prose h1::after { content: ''; display: block; width: 56px; height: 4px; border-radius: 2px; background: var(--lime-bright); margin-top: 0.5rem; }
.prose h2 { font-family: var(--display); font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; margin: 2.2em 0 0.6em; padding-bottom: 0.3rem; border-bottom: 1px solid var(--line); }
.prose h3 { font-family: var(--display); font-weight: 600; font-size: 1.2rem; margin: 1.8em 0 0.5em; }
.prose h4 { font-family: var(--display); font-weight: 600; font-size: 1.03rem; margin: 1.5em 0 0.4em; }
.prose p { margin: 0 0 1.1em; }
.prose a { color: var(--link); font-weight: 500; }
.prose strong { font-weight: 600; }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1.1em; }
.prose li { margin: 0.3em 0; }
.prose ul li::marker { color: var(--accent); }
.prose blockquote {
  margin: 1.4em 0; padding: 0.6em 1.1em; border-left: 3px solid var(--lime-bright);
  background: var(--surface); border-radius: 0 8px 8px 0; color: var(--text);
}
.prose blockquote p:last-child { margin-bottom: 0; }
.prose code { font-family: var(--mono); font-size: 0.86em; color: var(--code); background: var(--surface-2); padding: 0.12em 0.36em; border-radius: 5px; }
.prose pre { background: var(--surface-2); border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; overflow-x: auto; margin: 1.3em 0; }
.prose pre code { background: none; color: var(--text); padding: 0; font-size: 0.83em; }
.prose hr { border: none; border-top: 1px solid var(--line); margin: 2.4em 0; }
.prose img { border-radius: 10px; border: 1px solid var(--line); background: #fff; }

.heading-anchor { color: var(--muted); text-decoration: none; margin-left: 0.4em; opacity: 0; font-weight: 400; }
.prose h2:hover .heading-anchor, .prose h3:hover .heading-anchor, .prose h4:hover .heading-anchor { opacity: 0.6; }
.ref-internal { color: var(--muted); border-bottom: 1px dotted var(--line); cursor: help; }

/* Tabellen */
.table-wrap { overflow-x: auto; margin: 1.4em 0; border: 1px solid var(--line); border-radius: 10px; }
.prose table { border-collapse: collapse; width: 100%; font-size: 14px; }
.prose th, .prose td { padding: 8px 12px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose thead th { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); border-bottom: 2px solid var(--lime-bright); white-space: nowrap; }
.prose tbody tr:last-child td { border-bottom: none; }
.prose tbody tr:hover { background: var(--surface); }

.kicker { font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--lime-ink); margin: 0 0 0.4em; }
:root[data-theme='dark'] .kicker { color: var(--lime-bright); }
.lede { font-size: 1.2rem; color: var(--muted); line-height: 1.55; margin-bottom: 1.6em; }
.note { padding: 12px 16px; border-radius: 10px; background: var(--surface); border: 1px solid var(--line); margin: 1.4em 0; }
.note-warn { border-color: var(--apricot); background: color-mix(in srgb, var(--apricot) 12%, var(--bg)); }

/* ---- Landing --------------------------------------------------------------- */
.landing { max-width: var(--maxw); margin: 0 auto; padding: 0 40px 80px; }
.hero { display: flex; gap: 48px; align-items: center; padding: 64px 0 44px; }
.hero-text { flex: 1 1 auto; max-width: 40rem; min-width: 0; }
.hero-portrait { flex: 0 0 clamp(180px, 22vw, 280px); margin: 0; }
.hero-portrait img { width: 100%; height: auto; aspect-ratio: 1155 / 1593; object-fit: cover; border-radius: 18px; border: 1px solid var(--line); box-shadow: var(--shadow); }
@media (max-width: 760px) {
  .hero { flex-direction: column-reverse; align-items: flex-start; gap: 24px; padding-top: 40px; }
  .hero-portrait { flex-basis: auto; width: 168px; }
}

/* Portrait auf der Ueber-Seite */
.about-portrait { float: right; width: clamp(160px, 32%, 240px); margin: 0.2rem 0 1rem 1.6rem; }
.about-portrait img { width: 100%; height: auto; border-radius: 14px; border: 1px solid var(--line); box-shadow: var(--shadow); display: block; }
.about-portrait figcaption { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; color: var(--muted); text-align: center; margin-top: 7px; }
@media (max-width: 640px) { .about-portrait { float: none; width: 200px; margin: 0 0 1.2rem; } }
.hero-kicker { font-family: var(--mono); font-size: 13px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--lime-ink); margin: 0 0 1rem; }
:root[data-theme='dark'] .hero-kicker { color: var(--lime-bright); }
@media (prefers-color-scheme: dark) { :root:not([data-theme='light']) .hero-kicker { color: var(--lime-bright); } }
.hero-title { font-family: var(--display); font-weight: 700; font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.08; letter-spacing: -0.025em; margin: 0 0 0.6rem; }
.hero-tagline { font-family: var(--display); font-weight: 500; font-size: clamp(1.1rem, 2.4vw, 1.5rem); color: var(--text); margin: 0 0 1.2rem; }
.hero-lede { font-size: 1.12rem; color: var(--muted); line-height: 1.6; margin: 0; }
.hero-cursor { margin-top: 1.6rem; }
.cursor-block { display: inline-block; width: 12px; height: 26px; background: var(--lime-bright); border-radius: 2px; animation: blink 1.15s steps(2, start) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.card { border: 1px solid var(--line); border-radius: 14px; padding: 22px 22px 18px; background: var(--surface); transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s; }
.card:hover { border-color: var(--muted); box-shadow: var(--shadow); transform: translateY(-2px); }
.card h2 { font-family: var(--display); font-size: 1.18rem; font-weight: 600; margin: 0 0 0.5rem; }
.card h2 a { color: var(--text); text-decoration: none; }
.card h2 a:hover { color: var(--link); }
.card-blurb { color: var(--muted); font-size: 0.95rem; line-height: 1.55; margin: 0 0 1rem; }
.card-links { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); padding-top: 12px; }
.card-links li { margin: 0; }
.card-links a { display: flex; align-items: center; gap: 8px; padding: 5px 0; font-size: 0.92rem; color: var(--text); text-decoration: none; }
.card-links a:hover { color: var(--link); }
.card-badge { font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.06em; padding: 1px 5px; border-radius: 5px; color: var(--muted); border: 1px solid var(--line); }

/* ---- Footer ---------------------------------------------------------------- */
.site-footer {
  max-width: var(--maxw); margin: 0 auto; padding: 36px 40px 56px;
  border-top: 1px solid var(--line); display: grid; gap: 18px;
  grid-template-columns: 1fr auto; align-items: start; margin-top: 40px;
}
.footer-wordmark svg { height: 26px; width: auto; color: var(--text); }
.footer-note { color: var(--muted); font-size: 0.86rem; max-width: 44rem; margin: 12px 0 0; line-height: 1.55; }
.footer-links { display: flex; gap: 18px; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: 0.9rem; }
.footer-links a:hover { color: var(--link); }
.footer-copy { grid-column: 1 / -1; color: var(--muted); font-family: var(--mono); font-size: 12px; margin: 0; }

.nav-scrim { display: none; }

/* ---- Responsive ------------------------------------------------------------ */
@media (max-width: 860px) {
  body { font-size: 16px; }
  .nav-toggle { display: inline-flex; }
  .content { padding: 20px 22px 64px; }
  .landing, .site-footer { padding-left: 22px; padding-right: 22px; }
  .site-footer { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; top: 60px; left: 0; z-index: 45;
    height: calc(100vh - 60px); background: var(--bg);
    transform: translateX(-100%); transition: transform 0.22s ease;
    box-shadow: var(--shadow);
  }
  body.nav-open .sidebar { transform: translateX(0); }
  body.nav-open .nav-scrim { display: block; position: fixed; inset: 60px 0 0 0; z-index: 44; background: rgba(0, 0, 0, 0.4); }
}