/* Pathway Spine Section (Tight Spacing) */
.pathway-spine { max-width: 780px; margin: 0 auto; position: relative; }
.pathway-node { display: grid; grid-template-columns: 56px 1fr; gap: 18px; position: relative; padding-bottom: 16px; }
.node-marker { display: flex; flex-direction: column; align-items: center; position: relative; }
.node-num { width: 40px; height: 40px; border-radius: var(--radius-full); background: var(--navy); border: 1px solid var(--border-card); display: flex; align-items: center; justify-content: center; font-family: var(--font-mono); font-weight: 700; font-size: 12.5px; color: var(--grey-faint); z-index: 2; }
.node-num.active, .node-num.target { border-color: var(--orange); color: var(--orange); background: rgba(230, 140, 16, 0.12); box-shadow: 0 0 16px var(--orange-glow-sm); }
.node-line { position: absolute; top: 40px; bottom: 0; width: 2px; background: repeating-linear-gradient(to bottom, rgba(255, 254, 247, 0.2) 0 4px, transparent 4px 8px); }
.node-content { background: var(--surface-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 16px 20px; transition: all var(--transition-normal); }
.node-content:hover { border-color: var(--border-card-hover); transform: translateY(-2px); }
.node-tag { font-family: var(--font-mono); font-size: 10px; font-weight: 700; color: var(--grey-faint); text-transform: uppercase; letter-spacing: 0.08em; display: inline-flex; align-items: center; gap: 6px; }
.node-tag.accent { color: var(--orange); }
.node-title { font-size: 16px; font-weight: 700; color: var(--white); margin: 4px 0 6px; }
.node-desc { font-size: 13px; color: var(--grey-subtle); line-height: 1.5; margin-bottom: 10px; }
.node-meta { display: flex; gap: 8px; flex-wrap: wrap; }
.meta-pill { font-family: var(--font-mono); font-size: 10px; background: rgba(255, 254, 247, 0.04); border: 1px solid var(--border-subtle); padding: 3px 8px; border-radius: var(--radius-xs); color: var(--grey-subtle); display: inline-flex; align-items: center; gap: 4px; }
.meta-pill.accent-pill { border-color: rgba(230, 140, 16, 0.3); color: var(--orange-light); background: rgba(230, 140, 16, 0.08); }