:root {
  --ink: #1d2327;
  --ink-2: #4a5359;
  --muted: #6d767c;
  --line: #dfe3e6;
  --bg: #f6f5f1;
  --card: #ffffff;
  --accent: #e8961e;
  --accent-dark: #b86d06;
  --blue: #1f4e9c;
  --green: #1a9a7a;
  --red: #c0392b;
  --amber: #d9912a;
  --good-bg: #dff1e8;
  --mid-bg: #fcefd2;
  --bad-bg: #f8dcd8;
  --radius: 12px;
  --maxw: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 64px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.65 "Source Sans 3", "Segoe UI", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); }
h1, h2, h3, h4 { font-family: "Source Serif 4", Georgia, serif; line-height: 1.25; margin: 0 0 .5em; }
h2 { font-size: 2rem; }
h3 { font-size: 1.3rem; margin-top: 1.8em; }
p { margin: 0 0 1em; }

/* Navigation */
.top-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(29, 35, 39, .96);
  backdrop-filter: blur(6px);
}
.top-nav .inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 16px;
  display: flex; align-items: center; gap: 18px; height: 56px;
}
.top-nav .brand { color: #fff; font-weight: 700; white-space: nowrap; text-decoration: none; }
.top-nav .brand span { color: var(--accent); }
.top-nav ul { list-style: none; display: flex; gap: 4px; margin: 0; padding: 0; overflow-x: auto; scrollbar-width: none; }
.top-nav ul::-webkit-scrollbar { display: none; }
.top-nav a.lnk {
  color: #cfd5d9; text-decoration: none; font-size: .9rem; padding: 6px 10px; border-radius: 6px; white-space: nowrap;
}
.top-nav a.lnk:hover, .top-nav a.lnk.is-active { background: rgba(255,255,255,.1); color: #fff; }

/* Hero */
.hero { background: #1d2327; color: #fff; }
.hero .inner {
  max-width: var(--maxw); margin: 0 auto; padding: 56px 16px 48px;
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: center;
}
.hero .kicker { color: var(--accent); font-weight: 700; letter-spacing: .06em; text-transform: uppercase; font-size: .8rem; }
.hero h1 { font-size: 2.7rem; margin: .2em 0 .4em; }
.hero p.lead { color: #cfd5d9; font-size: 1.1rem; }
.hero dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 18px; margin: 24px 0 0; font-size: .95rem; }
.hero dt { color: #9aa4aa; }
.hero dd { margin: 0; }
.hero figure { margin: 0; border-radius: var(--radius); overflow: hidden; box-shadow: 0 12px 40px rgba(0,0,0,.4); }
.hero figure img { background: #fff; }
.version-note {
  margin-top: 22px; padding: 10px 14px; border-left: 3px solid var(--accent);
  background: rgba(232, 150, 30, .1); font-size: .92rem; color: #e9ecee;
}

/* Layout */
main { max-width: var(--maxw); margin: 0 auto; padding: 0 16px 64px; }
section.chapter { padding-top: 56px; }
.section-card { background: var(--card); border-radius: var(--radius); padding: 40px 44px; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
.kicker { color: var(--accent-dark); font-weight: 700; letter-spacing: .06em; text-transform: uppercase; font-size: .8rem; margin: 0 0 .4em; }
.lead { font-size: 1.12rem; color: var(--ink-2); }

/* KPI */
.metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin: 26px 0 30px; }
.metric { border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; background: #fbfbfa; }
.metric .value { font-size: 1.85rem; font-weight: 700; font-family: "Source Serif 4", Georgia, serif; line-height: 1.15; }
.metric .unit { font-size: 1rem; font-weight: 600; color: var(--ink-2); }
.metric .label { color: var(--ink-2); font-size: .92rem; margin-top: 4px; }
.metric.good { border-left: 4px solid var(--green); }
.metric.bad { border-left: 4px solid var(--red); }
.metric.neutral { border-left: 4px solid var(--blue); }

/* Figures */
figure.fig { margin: 28px 0; }
figure.fig img { border: 1px solid var(--line); border-radius: 8px; background: #fff; cursor: zoom-in; width: 100%; }
figure.fig figcaption { font-size: .88rem; color: var(--muted); margin-top: 8px; }
figure.fig figcaption b { color: var(--ink-2); }
.dl { font-size: .85rem; margin-left: 6px; white-space: nowrap; }

/* Boxes */
.box { border-radius: 10px; padding: 16px 20px; margin: 22px 0; }
.box h4 { font-family: inherit; font-size: 1rem; margin: 0 0 .4em; }
.box p:last-child, .box ul:last-child { margin-bottom: 0; }
.box.info { background: #eef3fb; border-left: 4px solid var(--blue); }
.box.warn { background: #fdf3e3; border-left: 4px solid var(--amber); }
.box.fix { background: #eaf6f0; border-left: 4px solid var(--green); }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.two-col .box { margin: 0; }

ul.clean { padding-left: 1.2em; }
ul.clean li { margin-bottom: .45em; }

/* Tables */
.table-wrap { overflow-x: auto; margin: 22px 0; border: 1px solid var(--line); border-radius: 10px; }
table { border-collapse: collapse; width: 100%; font-size: .93rem; background: #fff; }
caption { caption-side: top; text-align: left; font-weight: 700; padding: 12px 14px 4px; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
thead th { background: #f1f2ef; font-size: .85rem; color: var(--ink-2); }
tbody tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.pill { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: .82rem; font-weight: 700; white-space: nowrap; }
.pill.good { background: var(--good-bg); color: #16704f; }
.pill.mid { background: var(--mid-bg); color: #8a5a06; }
.pill.bad { background: var(--bad-bg); color: #9b2a1f; }
.pill.na { background: #eceeef; color: #5a6268; }

/* SWOT */
.swot { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 24px 0; }
.swot > div { border-radius: 10px; padding: 16px 20px; }
.swot h4 { font-family: inherit; margin: 0 0 .5em; }
.swot ul { margin: 0; padding-left: 1.1em; font-size: .95rem; }
.swot .s { background: var(--good-bg); } .swot .w { background: var(--bad-bg); }
.swot .o { background: #e3edfa; } .swot .t { background: var(--mid-bg); }

/* Kurzfassung */
.findings { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 12px; }
.findings li { background: #fbfbfa; border: 1px solid var(--line); border-radius: 10px; padding: 14px 18px; }
.findings li b { display: block; margin-bottom: 2px; }

details { margin: 18px 0; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
details summary { cursor: pointer; padding: 12px 16px; font-weight: 700; }
details > div { padding: 0 18px 14px; font-size: .93rem; }
details ol, details ul { padding-left: 1.2em; }

/* Lightbox */
.lightbox { position: fixed; inset: 0; background: rgba(10, 12, 14, .92); display: none; align-items: center; justify-content: center; z-index: 100; padding: 16px; cursor: zoom-out; }
.lightbox.open { display: flex; }
.lightbox img { max-width: 100%; max-height: 100%; object-fit: contain; background: #fff; border-radius: 6px; }

footer { text-align: center; color: var(--muted); font-size: .85rem; padding: 30px 16px 50px; }

@media (max-width: 900px) {
  .hero .inner { grid-template-columns: 1fr; padding-top: 36px; }
  .hero h1 { font-size: 2.1rem; }
  .section-card { padding: 26px 20px; }
  .two-col, .swot { grid-template-columns: 1fr; }
  h2 { font-size: 1.6rem; }
  body { font-size: 16px; }
}
@media print {
  .top-nav, .lightbox { display: none !important; }
  body { background: #fff; }
  .section-card { box-shadow: none; padding: 0; }
  figure.fig { break-inside: avoid; }
}

/* Diskrete Leiste für weitere Fassungen (Archiv, Entwürfe) */
.meta-bar { background: #15191c; border-bottom: 1px solid rgba(255,255,255,.05); }
.meta-bar .mb-inner {
  max-width: var(--maxw, 1180px); margin: 0 auto; padding: 4px 16px;
  display: flex; flex-wrap: wrap; justify-content: flex-end; align-items: center; gap: 6px;
  font: 12px/1.4 "Source Sans 3", "Segoe UI", Arial, sans-serif;
}
.meta-bar .mb-note { color: #6f797f; margin-right: auto; }
.meta-bar .mb-btn {
  color: #8b959b; text-decoration: none; padding: 1px 8px;
  border: 1px solid rgba(255,255,255,.1); border-radius: 999px; white-space: nowrap;
}
.meta-bar a.mb-btn:hover { color: #e3e7ea; border-color: rgba(255,255,255,.28); }
.meta-bar .mb-btn.is-current { color: #c9cfd3; border-color: rgba(255,255,255,.22); }
@media print { .meta-bar { display: none; } }

/* Interaktive Geländebegehung */
.begehung { margin: 22px 0 28px; }
.begehung-map { height: 540px; border: 1px solid var(--line); border-radius: 8px; background: #dfe3e6; z-index: 0; }
.begehung-bar { display: flex; gap: 12px; align-items: center; margin-top: 10px; }
.begehung-start { flex: none; font: 600 .95rem inherit; font-family: inherit; color: #fff; background: var(--accent-dark); border: 0; border-radius: 8px; padding: 10px 14px; cursor: pointer; }
.begehung-start:hover { background: var(--accent); }
.begehung-strip { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 4px; }
.begehung-strip button { position: relative; flex: none; padding: 0; border: 2px solid transparent; border-radius: 6px; background: none; cursor: pointer; line-height: 0; }
.begehung-strip button img { width: 74px; height: 56px; object-fit: cover; border-radius: 4px; }
.begehung-strip button span { position: absolute; left: 3px; top: 3px; font: 700 .7rem/1 sans-serif; color: #fff; background: rgba(0,0,0,.6); border-radius: 3px; padding: 2px 4px; }
.begehung-strip button.is-active, .begehung-strip button:hover { border-color: var(--accent); }
.begehung-note { font-size: .85rem; color: var(--muted); margin-top: 8px; }
.cam-icon { background: none; border: 0; }
.cam-icon svg { overflow: visible; cursor: pointer; }
.cam-icon .cone { fill: rgba(232,150,30,.28); stroke: none; }
.cam-icon .arrow { fill: #e8961e; stroke: #fff; stroke-width: 1.2; }
.cam-icon .dot { fill: #1d2327; stroke: #fff; stroke-width: 2.2; }
.cam-icon .glyph rect { fill: #fff; }
.cam-icon .glyph .lens { fill: #1d2327; }
.cam-icon .num { font: 700 11px/1 sans-serif; fill: #fff; stroke: #1d2327; stroke-width: 3px; paint-order: stroke; }
.cam-icon:hover .dot, .cam-icon.is-active .dot { fill: var(--accent-dark); }
.cam-icon.is-active .cone { fill: rgba(232,150,30,.5); }
.begehung-viewer { position: fixed; inset: 0; z-index: 2000; display: none; align-items: center; justify-content: center; background: rgba(15,18,20,.86); padding: 16px; }
.begehung-viewer.open { display: flex; }
.bv-box { position: relative; width: min(1100px, 100%); max-height: 100%; display: flex; flex-direction: column; background: #111; border-radius: 10px; overflow: hidden; }
.bv-stage { position: relative; display: flex; align-items: center; justify-content: center; min-height: 0; }
.bv-stage img { max-width: 100%; max-height: calc(100vh - 170px); object-fit: contain; display: block; }
.bv-prev, .bv-next { position: absolute; top: 50%; transform: translateY(-50%); width: 46px; height: 64px; border: 0; border-radius: 8px; background: rgba(0,0,0,.45); color: #fff; font-size: 2.2rem; cursor: pointer; }
.bv-prev { left: 8px; } .bv-next { right: 8px; }
.bv-prev:hover, .bv-next:hover { background: rgba(0,0,0,.7); }
.bv-close { position: absolute; right: 8px; top: 8px; z-index: 2; width: 38px; height: 38px; border: 0; border-radius: 50%; background: rgba(0,0,0,.55); color: #fff; font-size: 1.6rem; line-height: 1; cursor: pointer; }
.bv-text { padding: 12px 16px 14px; color: #e9ecee; background: #1d2327; }
.bv-text p { margin: 0; }
.bv-title { font-weight: 700; font-size: 1.05rem; }
.bv-meta { font-size: .82rem; color: #f0b25a; margin: 2px 0 4px !important; }
.bv-desc { font-size: .92rem; color: #cfd5d9; }
@media (max-width: 700px) {
  .begehung-map { height: 420px; }
  .begehung-bar { flex-direction: column; align-items: stretch; }
  .bv-prev, .bv-next { width: 38px; height: 52px; font-size: 1.8rem; }
}
@media print { .begehung, .begehung-viewer, #begehung + p { display: none; } }