:root{
  --green:#22c55e;
  --green-deep:#0f7a4f;
  --green-glow:rgba(34,197,94,0.28);
  --blue:#38bdf8;
  --blue-glow:rgba(56,189,248,0.25);
  --home-bg-1:#f3fbf6;
  --home-bg-2:#eef6ff;
  --home-surface:rgba(255,255,255,0.75);
  --home-border:rgba(15,122,79,0.18);
  --home-text:#132018;
  --home-text-muted:#4f6157;
  --light-bg:#f7f8f7;
  --light-surface:#ffffff;
  --light-border:#e2e6e3;
  --light-text:#161c19;
  --light-text-muted:#5b665f;
  --accent:#0f7a4f;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,'Segoe UI',Roboto,Arial,sans-serif}
a{text-decoration:none}
img{max-width:100%;display:block}

/* ---- shared nav ---- */
.nav{display:flex;justify-content:space-between;align-items:center;padding:24px 64px}
.nav .brand{font-size:19px;font-weight:600}
.nav .brand span{color:var(--green-deep)}
.nav .links{display:flex;gap:28px;font-size:14px}
.nav .cta{padding:9px 18px;border-radius:8px;font-size:13px;font-weight:500;white-space:nowrap}

/* ---- home theme: light + fancy hero ---- */
body.theme-home{
  color:var(--home-text);
  background:linear-gradient(160deg,var(--home-bg-1) 0%,var(--home-bg-2) 55%,#fdf9f0 100%);
}
.theme-home .nav{border-bottom:1px solid var(--home-border)}
.theme-home .nav .links a{color:var(--home-text-muted)}
.theme-home .nav .cta{background:linear-gradient(120deg,var(--green-deep),#0ea86e);color:#fff;box-shadow:0 6px 22px var(--green-glow)}
.theme-home footer{padding:24px 64px;font-size:12px;color:#7a8c81;text-align:center;border-top:1px solid var(--home-border)}

.hero{position:relative;padding:72px 64px 40px;display:flex;flex-direction:column;align-items:center;overflow:hidden;text-align:center}
.hero .hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;pointer-events:none;filter:invert(1) hue-rotate(180deg) saturate(1.3);mix-blend-mode:multiply;opacity:.5}
.hero .hero-wash{position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse at 50% 38%,rgba(243,251,246,.82) 0%,rgba(243,251,246,.55) 45%,rgba(238,246,255,.15) 100%)}
@media (prefers-reduced-motion:reduce){.hero .hero-video{display:none}}
.hero .glow-bg{position:absolute;top:-160px;left:50%;transform:translateX(-50%);width:1000px;height:600px;background:radial-gradient(circle,var(--green-glow) 0%,rgba(34,197,94,0) 60%),radial-gradient(circle at 70% 40%,var(--blue-glow) 0%,rgba(56,189,248,0) 55%);pointer-events:none}
.hero .eyebrow{font-size:13px;letter-spacing:2px;color:var(--green-deep);margin-bottom:16px;position:relative;font-weight:600}
.hero h1{font-size:44px;font-weight:700;max-width:780px;line-height:1.25;margin:0 0 16px;position:relative;color:var(--home-text)}
.hero h1 .hl{background:linear-gradient(120deg,var(--green-deep),#2dd4bf);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:16px;color:var(--home-text-muted);max-width:540px;line-height:1.6;margin:0 0 56px;position:relative}

.bubble-field{position:relative;width:680px;max-width:100%;height:480px;margin:0 auto}
.bubble-core{position:absolute;left:250px;top:150px;width:180px;height:180px;border-radius:50%;background:rgba(255,255,255,0.8);backdrop-filter:blur(6px);border:1px solid rgba(15,122,79,0.35);box-shadow:0 8px 40px rgba(34,197,94,0.28),inset 0 0 30px rgba(34,197,94,0.08);display:flex;align-items:center;justify-content:center;text-align:center}
.bubble-core span{font-size:19px;font-weight:700;background:linear-gradient(120deg,var(--green-deep),#0ea86e);-webkit-background-clip:text;background-clip:text;color:transparent}
.bubble{position:absolute;width:100px;height:100px;border-radius:50%;background:rgba(255,255,255,0.85);backdrop-filter:blur(4px);border:1px solid rgba(56,189,248,0.4);box-shadow:0 6px 20px rgba(56,189,248,0.18);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:0 8px;transition:box-shadow .2s,border-color .2s,transform .2s}
.bubble:hover{box-shadow:0 8px 28px rgba(56,189,248,0.32);border-color:rgba(56,189,248,0.7);transform:translateY(-2px)}
.bubble svg{stroke:#0284c7}
.bubble span{font-size:11px;font-weight:600;color:#0c4a6e;text-align:center;line-height:1.2}
.bubble.external{border-color:rgba(15,122,79,0.4);box-shadow:0 6px 20px var(--green-glow)}
.bubble.external svg{stroke:var(--green-deep)}
.bubble.external span{color:var(--green-deep)}
.bubble.external:hover{box-shadow:0 8px 28px rgba(34,197,94,0.35)}

.video-strip{padding:60px 64px 20px;text-align:center}
.video-strip .eyebrow{font-size:12px;letter-spacing:2px;color:var(--green-deep);margin-bottom:12px;font-weight:600}
.video-strip h2{font-size:28px;margin:0 0 12px;color:var(--home-text)}
.video-strip p{max-width:620px;margin:0 auto 28px;font-size:15px;line-height:1.6;color:var(--home-text-muted)}
.video-card{width:100%;max-width:980px;border-radius:14px;border:1px solid var(--home-border);box-shadow:0 18px 50px rgba(15,122,79,.18);background:#04070d}
.module-strip{padding:60px 64px;border-top:1px solid var(--home-border);background:rgba(255,255,255,0.5)}
.module-strip .eyebrow{font-size:12px;letter-spacing:2px;color:var(--green-deep);text-align:center;margin-bottom:12px;font-weight:600}
.module-strip h2{font-size:24px;font-weight:700;text-align:center;margin:0 0 36px}
.module-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;max-width:1100px;margin:0 auto}
.module-card{background:rgba(255,255,255,0.85);border:1px solid var(--home-border);border-radius:12px;padding:22px 18px;transition:border-color .2s,box-shadow .2s,transform .2s}
.module-card:hover{border-color:rgba(34,197,94,0.4);box-shadow:0 8px 24px rgba(34,197,94,0.15);transform:translateY(-2px)}
.module-card .name{font-size:14px;font-weight:600;margin-bottom:6px;color:var(--home-text)}
.module-card .desc{font-size:12px;color:var(--home-text-muted);line-height:1.5}

/* ---- light (serious subpages) theme ---- */
body.theme-light{background:var(--light-bg);color:var(--light-text)}
.theme-light .nav{border-bottom:1px solid var(--light-border);background:var(--light-surface)}
.theme-light .nav .links a{color:var(--light-text-muted)}
.theme-light .nav .cta{background:var(--accent);color:#fff}
.theme-light footer{padding:24px 64px;font-size:12px;color:#8a9490;text-align:center;border-top:1px solid var(--light-border)}

.page-hero{padding:56px 64px 40px;max-width:840px}
.page-hero .eyebrow{font-size:12px;letter-spacing:2px;color:var(--accent);margin-bottom:14px}
.page-hero h1{font-size:32px;font-weight:600;margin:0 0 16px;line-height:1.3}
.page-hero p{font-size:16px;color:var(--light-text-muted);line-height:1.65;margin:0}

.section{padding:0 64px 56px;max-width:840px}
.section h2{font-size:19px;font-weight:600;margin:0 0 14px}
.section p{font-size:15px;color:var(--light-text-muted);line-height:1.7;margin:0 0 12px}
.section ul{padding-left:20px;margin:0}
.section li{font-size:15px;color:var(--light-text-muted);line-height:1.8}

.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;max-width:840px;margin:0 64px 56px}
.info-card{background:var(--light-surface);border:1px solid var(--light-border);border-radius:10px;padding:20px}
.info-card .k{font-size:13px;font-weight:600;margin-bottom:6px}
.info-card .v{font-size:13px;color:var(--light-text-muted);line-height:1.5}

.placeholder{background:#fef7e8;border:1px solid #f2dfae;color:#7a5b12;font-size:13px;padding:12px 16px;border-radius:8px;max-width:840px;margin:0 64px 40px}

.back-link{display:inline-block;margin:32px 64px 0;font-size:14px;color:var(--accent)}

/* ---- Defence: Erklaervideo (heller Hintergrund passt zur Seite) ---- */
.defence-video{max-width:840px;margin:0 64px 56px}
.defence-video video{display:block;width:100%;border:1px solid var(--light-border);border-radius:12px;background:#fff;box-shadow:0 10px 30px rgba(22,28,25,0.08)}
.defence-video .caption{font-size:12px;color:var(--light-text-muted);margin:10px 0 0}
@media (max-width:768px){.defence-video{margin:0 20px 40px}}

/* ---------- Umschaltleiste: BESS-Plattform | Wiki | Video-Wiki (gemeinsam fuer die drei Seiten) ---------- */
.sitebar{position:sticky;top:0;z-index:31;height:34px;background:#0b1f17;color:#cfe8dc;border-bottom:1px solid rgba(34,197,94,.35);font-family:-apple-system,'Segoe UI',Roboto,Arial,sans-serif;line-height:1.2}
.sitebar .in{max-width:1040px;height:100%;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px}
.sitebar .lbl{opacity:.7;letter-spacing:.06em;text-transform:uppercase;font-size:11px;white-space:nowrap}
.sitebar nav{display:flex;gap:4px}
.sitebar a{color:#cfe8dc;padding:4px 12px;border-radius:999px;white-space:nowrap;text-decoration:none}
.sitebar a:hover{background:rgba(255,255,255,.1);text-decoration:none}
.sitebar a[aria-current="page"]{background:#22c55e;color:#052e1a;font-weight:700}
@media (max-width:560px){.sitebar .lbl{display:none}.sitebar .in{justify-content:center}.sitebar a{padding:4px 9px}}