:root {
  --bg:          #024530;
  --bg2:         #013826;
  --bg3:         rgba(0,0,0,0.22);
  --bg4:         rgba(0,0,0,0.28);
  --text:        #e8f5e0;
  --text2:       #a0c8a0;
  --text3:       #5a8a6a;
  --accent:      #6ee87e;
  --accent2:     #3a9e5a;
  --accent3:     #0a7050;
  --amber:       #f0b84a;
  --amber2:      #d4a030;
  --amber3:      rgba(200,136,42,0.12);
  --border:      #0a6040;
  --border2:     rgba(10,96,64,0.5);
  --pmc-bg:      #0d2b20;
  --pmc-text:    #5ecfa0;
  --arxiv-bg:    #0d2038;
  --arxiv-text:  #6aabea;
  --book-bg:     #2a1f40;
  --book-text:   #b48ef0;
  --cs-bg:       #3a2a10;
  --cs-text:     #d4a847;
}

.back-link {
  display: inline-block; font-family: 'Lora',Georgia,serif; font-size: 0.75rem;
  color: #00e5e5; letter-spacing: 0.08em; text-transform: uppercase;
  text-decoration: none; border-bottom: 1px solid #00e5e5; padding-bottom: 2px;
  transition: opacity 0.2s;
}
.back-link:hover { opacity: 0.7; }

.page { max-width: 820px; margin: 0 auto; padding: 7rem 2rem 6rem; }

.page-tag { font-family: 'Lora',Georgia,serif; font-size: 0.68rem; color: var(--amber2); letter-spacing: 0.25em; text-transform: uppercase; margin-bottom: 1rem; display: flex; align-items: center; gap: 10px; }
.page-tag::before { content: ''; display: inline-block; width: 24px; height: 1px; background: var(--amber2); }

.page h1 { font-size: clamp(2rem, 4vw, 2.8rem); margin-bottom: 1rem; }

.subtitle { font-size: 1.05rem; color: var(--text2); max-width: 900px; margin-bottom: 1.5rem; line-height: 1.8; }

.intro-box { margin-bottom: 3.5rem; padding: 1.2rem 1.5rem; border-left: 3px solid var(--amber2); background: var(--amber3); font-size: 0.95rem; color: var(--text2); line-height: 1.75; }
.intro-box strong { color: var(--text); }

/* WISSENSPFAD */
.path-section { margin-bottom: 4rem; }
.path-label { font-family: 'Lora',Georgia,serif; font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--amber2); margin-bottom: 1.5rem; }

.path-chain { display: flex; align-items: flex-start; gap: 0; position: relative; padding-bottom: 0.5rem; }
.path-node { display: flex; flex-direction: column; align-items: center; flex: 1; position: relative; cursor: pointer; min-width: 0; }
.path-node:not(:last-child)::after { content: ''; position: absolute; top: 14px; left: 50%; right: -50%; height: 1px; background: var(--border); z-index: 0; transition: background 0.3s; }
.path-node.passed:not(:last-child)::after { background: var(--accent3); }

.path-node-circle { width: 28px; height: 28px; border-radius: 50%; border: 2px solid var(--border); background: var(--bg3); display: flex; align-items: center; justify-content: center; font-family: 'JetBrains Mono',monospace; font-size: 0.6rem; color: var(--text3); position: relative; z-index: 1; transition: all 0.25s; flex-shrink: 0; }
.path-node.active .path-node-circle { border-color: var(--accent3); color: var(--accent); background: rgba(10,112,80,0.3); }
.path-node.amber .path-node-circle { border-color: var(--amber2); color: var(--amber); background: var(--amber3); }
.path-node.current .path-node-circle { border-color: var(--accent); color: #fff; background: var(--accent3); box-shadow: 0 0 0 3px rgba(110,232,126,0.2); }
.path-node.amber.current .path-node-circle { border-color: var(--amber); color: #fff; background: rgba(212,160,48,0.4); box-shadow: 0 0 0 3px rgba(240,184,74,0.2); }
.path-node-label { font-family: 'JetBrains Mono',monospace; font-size: 0.58rem; letter-spacing: 0.04em; color: var(--text3); text-align: center; margin-top: 6px; line-height: 1.3; max-width: 72px; transition: color 0.25s; white-space: normal; }
.path-node.active .path-node-label { color: var(--text2); }
.path-node.amber .path-node-label { color: var(--amber2); }
.path-node.current .path-node-label { color: var(--accent); }
.path-node.amber.current .path-node-label { color: var(--amber); }
.path-node:hover .path-node-circle { border-color: var(--accent); }
.path-node:hover .path-node-label { color: var(--accent); }

.path-accordion { display: none; }
.path-accordion-item { border: 1px solid var(--border); margin-bottom: 4px; background: var(--bg3); transition: border-color 0.2s; }
.path-accordion-item.amber { border-color: var(--amber2); }
.path-accordion-item.active-acc { border-color: var(--accent3); }
.path-accordion-header { display: flex; align-items: center; gap: 12px; padding: 0.75rem 1rem; cursor: pointer; font-family: 'JetBrains Mono',monospace; font-size: 0.72rem; letter-spacing: 0.06em; color: var(--text2); user-select: none; }
.path-accordion-item.amber .path-accordion-header { color: var(--amber); }
.path-accordion-item.active-acc .path-accordion-header { color: var(--accent); }
.path-accordion-num { width: 22px; height: 22px; border-radius: 50%; border: 1px solid var(--border); background: var(--bg); display: flex; align-items: center; justify-content: center; font-size: 0.58rem; color: var(--text3); flex-shrink: 0; }
.path-accordion-item.amber .path-accordion-num { border-color: var(--amber2); color: var(--amber); }
.path-accordion-item.active-acc .path-accordion-num { border-color: var(--accent); color: var(--accent); background: rgba(10,112,80,0.3); }
.path-accordion-chevron { margin-left: auto; font-size: 0.8rem; color: var(--text3); transition: transform 0.25s; }
.path-accordion-item.open .path-accordion-chevron { transform: rotate(180deg); }
.path-accordion-body { display: none; padding: 0 1rem 1rem; font-size: 0.85rem; color: var(--text2); line-height: 1.7; }
.path-accordion-item.open .path-accordion-body { display: block; }
.path-accordion-body a.acc-scroll-link { display: inline-block; margin-top: 0.75rem; font-family: 'JetBrains Mono',monospace; font-size: 0.65rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); border-bottom: 1px solid var(--accent3); padding-bottom: 1px; cursor: pointer; }
.path-accordion-item.amber .path-accordion-body a.acc-scroll-link { color: var(--amber); border-bottom-color: var(--amber2); }

@media (max-width: 900px) {
  .path-chain { display: none; }
  .path-accordion { display: block; }
}

/* TIMELINE */
.timeline { position: relative; padding-left: 36px; }
.timeline::before { content: ''; position: absolute; left: 10px; top: 12px; bottom: 12px; width: 1px; background: linear-gradient(to bottom, var(--accent3), var(--border2) 85%, transparent); }

.station { margin-bottom: 4rem; position: relative; }
.station-dot { position: absolute; left: -30px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--bg); border: 2px solid var(--accent3); }
.station-dot.amber { border-color: var(--amber2); }
.station-dot.dim   { border-color: var(--text3); }
.station.in-view .station-dot { background: var(--accent3); border-color: var(--accent); }
.station.in-view .station-dot.amber { background: rgba(212,160,48,0.3); border-color: var(--amber); }

.station-header { margin-bottom: 1.25rem; }
.station-step { font-family: 'Lora',Georgia,serif; font-size: 0.68rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.4rem; }
.station-step.amber { color: var(--amber); }
.station-step.dim   { color: var(--text3); }
.station-title { font-family: 'Playfair Display',serif; font-size: 1.4rem; font-weight: 400; color: #ffffff; line-height: 1.25; margin-bottom: 0.5rem; }
.station-desc { font-size: 0.95rem; color: var(--text2); max-width: 580px; line-height: 1.75; }

.station.highlight .station-title { animation: stationPulse 1.2s ease-out; }
@keyframes stationPulse {
  0%   { color: var(--amber); text-shadow: 0 0 18px rgba(240,184,74,0.6); }
  60%  { color: var(--amber); text-shadow: 0 0 8px rgba(240,184,74,0.3); }
  100% { color: #ffffff; text-shadow: none; }
}

/* REF CARDS */
.ref { display: flex; gap: 14px; align-items: flex-start; padding: 14px 16px; border: 1px solid var(--border); background: var(--bg3); margin-bottom: 8px; transition: border-color 0.15s, background 0.15s; cursor: pointer; }
.ref:hover { border-color: var(--accent3); background: var(--bg4); }
.ref-num { font-family: 'JetBrains Mono',monospace; font-size: 0.7rem; color: var(--text3); min-width: 20px; padding-top: 2px; }
.ref-body { flex: 1; min-width: 0; }
.ref-title { font-size: 0.95rem; font-weight: 500; color: var(--text); margin-bottom: 3px; line-height: 1.45; font-family: 'Lora',Georgia,serif; }
.ref-meta { font-size: 0.8rem; color: var(--text2); line-height: 1.55; font-family: 'JetBrains Mono',monospace; }
.ref-badge { font-family: 'JetBrains Mono',monospace; font-size: 0.65rem; letter-spacing: 0.06em; text-transform: uppercase; padding: 3px 8px; white-space: nowrap; align-self: center; }
.ref-badge.pmc   { background: var(--pmc-bg);   color: var(--pmc-text);  }
.ref-badge.arxiv { background: var(--arxiv-bg);  color: var(--arxiv-text);}
.ref-badge.book  { background: var(--book-bg);   color: var(--book-text); }
.ref-badge.cs    { background: var(--cs-bg);     color: var(--cs-text);   }
.ev-badge { font-family: 'JetBrains Mono',monospace; font-size: 0.6rem; letter-spacing: 0.04em; padding: 1px 5px; border-radius: 3px; white-space: nowrap; border: 1px solid; margin-top: 4px; display: inline-block; }
.ev-badge.p   { color: #5ecfa0; border-color: #5ecfa0; background: rgba(94,207,160,0.1); }
.ev-badge.r   { color: #6aabea; border-color: #6aabea; background: rgba(106,171,234,0.1); }
.ev-badge.c   { color: var(--amber); border-color: var(--amber); background: var(--amber3); }
.ev-badge.b   { color: #b48ef0; border-color: #b48ef0; background: rgba(180,142,240,0.1); }
.ev-badge.pre { color: var(--text3); border-color: var(--text3); background: rgba(90,138,106,0.1); }
.ev-badge.pop { color: var(--cs-text); border-color: var(--cs-text); background: rgba(212,168,71,0.1); }
.ref-relevanz { font-size: 0.82rem; color: var(--accent); margin-top: 6px; padding-top: 6px; border-top: 1px solid rgba(10,112,80,0.25); line-height: 1.6; }
.ref-relevanz::before { content: '→ OMN: '; color: var(--accent2); font-weight: 500; font-family: 'JetBrains Mono',monospace; font-size: 0.72rem; }
.ref-relevanz.amber { color: var(--amber); border-top-color: rgba(212,160,48,0.25); }
.ref-relevanz.amber::before { color: var(--amber2); }
.ref-hypothesis { font-size: 0.82rem; color: var(--amber); margin-top: 6px; padding-top: 6px; border-top: 1px solid rgba(212,160,48,0.25); line-height: 1.6; font-style: italic; }
.ref-hypothesis::before { content: '→ OMN-Forschungsfrage: '; color: var(--amber2); font-weight: 500; font-style: normal; font-family: 'JetBrains Mono',monospace; font-size: 0.72rem; }
.ref-ext { font-family: 'JetBrains Mono',monospace; font-size: 0.9rem; color: var(--text3); align-self: center; flex-shrink: 0; }
.ref:hover .ref-ext { color: var(--accent); }

.page-footer { margin-top: 5rem; padding-top: 1.5rem; border-top: 1px solid var(--border); font-family: 'JetBrains Mono',monospace; font-size: 0.7rem; color: var(--text3); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.page-footer a { color: var(--accent); }

@media (max-width: 900px) {
  .page { padding: 5.5rem 1.25rem 4rem; }
  .page h1 { font-size: 1.7rem; }
  .ref-badge { display: none; }
}

.qn-1 { height:1.5rem; }
.qn-2 { scroll-margin-top:110px; }