.pbv-timeline{width:100%;max-width:960px;margin:0 auto;color:#0f172a}.pbv-timeline-header{margin-bottom:1.5rem;text-align:center}@media (min-width: 768px){.pbv-timeline-header{margin-bottom:2rem;text-align:center}}.pbv-timeline-title{font-size:clamp(1.75rem,3vw,2.5rem);font-weight:700;margin-top:.75rem}.pbv-timeline-desc{color:#475569;max-width:640px}.pbv-filter-chips{display:flex;flex-wrap:wrap;gap:.65rem;margin:1.5rem 0 2rem;justify-content:center}.pbv-chip{border:1px solid #d0d7e7;background:#fffc;border-radius:999px;padding:.35rem 1.1rem;font-size:.9rem;cursor:pointer;color:#334155;transition:all .2s ease}.pbv-chip:hover{border-color:#94a3b8;color:#0f172a}.pbv-chip-active{background:#0f172a;color:#fff;border-color:#0f172a;box-shadow:0 10px 25px #0f172a40}.pbv-timeline-vertical{position:relative;padding-left:3rem}.pbv-timeline-axis{position:absolute;top:0;bottom:0;left:.65rem;width:2px;background:linear-gradient(180deg,#d7e3ff,#c3dafe,#bdd9ff)}.pbv-era-card{--card-bg: linear-gradient(145deg, #fdfefe, #f3f8ff);--card-border: #d9e2ef;--accent: #94a3b8;border-radius:20px;border:1px solid var(--card-border);background:var(--card-bg);margin-bottom:1.75rem;box-shadow:0 15px 35px #0f172a14;overflow:hidden;position:relative;transition:transform .2s ease,box-shadow .2s ease}.pbv-era-card:before{content:"";position:absolute;left:-2.25rem;top:32px;width:14px;height:14px;border-radius:999px;background:var(--accent);box-shadow:0 0 0 6px #f8fbff}.pbv-era-card.is-open{transform:translateY(-2px);box-shadow:0 18px 40px #0f172a1f}.pbv-era-card[data-theme=indigo]{--card-bg: linear-gradient(135deg, #eef2ff, #e0e7ff);--card-border: #c7d2fe;--accent: #6366f1}.pbv-era-card[data-theme=mint]{--card-bg: linear-gradient(135deg, #ecfdf5, #d1fae5);--card-border: #a7f3d0;--accent: #10b981}.pbv-era-card[data-theme=sunset]{--card-bg: linear-gradient(135deg, #fff7ed, #ffedd5);--card-border: #fed7aa;--accent: #fb923c}.pbv-era-card[data-theme=neutral]{--card-bg: linear-gradient(135deg, #f8fafc, #e2e8f0);--card-border: #cbd5f5;--accent: #0ea5e9}.pbv-era-header{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1.25rem 1.5rem;cursor:pointer;background:#fff6}.pbv-era-header:focus-visible{outline:3px solid rgba(15,23,42,.25);outline-offset:2px}.pbv-era-name{font-size:1.15rem;font-weight:600;margin-bottom:.15rem}.pbv-era-range{font-size:.9rem;letter-spacing:.08em;text-transform:uppercase;color:#475569}.pbv-era-toggle{width:32px;height:32px;border-radius:999px;border:1px solid rgba(15,23,42,.1);display:grid;place-items:center;transition:background .2s ease,transform .2s ease}.pbv-era-toggle:before{content:"";border-left:6px solid transparent;border-right:6px solid transparent;border-top:8px solid #0f172a;display:block;transition:transform .2s ease}.pbv-era-card.is-open .pbv-era-toggle{background:#0f172a}.pbv-era-card.is-open .pbv-era-toggle:before{border-top-color:#fff;transform:rotate(180deg)}.pbv-era-body{padding:0 1.5rem 1.5rem}.pbv-era-summary{font-size:.95rem;color:#334155;margin:0 0 .75rem}.pbv-era-tags{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:1rem}.pbv-era-tags span{background:#0f172a14;color:#0f172a;border-radius:999px;padding:.15rem .65rem;font-size:.75rem;letter-spacing:.04em;text-transform:uppercase}.pbv-era-events{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.9rem}.pbv-event-row{background:#ffffffbf;border:1px solid rgba(148,163,184,.4);border-radius:14px;padding:.9rem 1rem;box-shadow:inset 0 1px #fff9}.pbv-event-content{display:flex;gap:1rem;align-items:flex-start}.pbv-event-date{font-family:JetBrains Mono,SFMono-Regular,Consolas,monospace;font-size:.95rem;color:#0f172a;min-width:3.5rem;letter-spacing:.06em}.pbv-event-text{flex:1}.pbv-event-title{font-weight:600;margin-bottom:.15rem}.pbv-event-notes{color:#475569;font-size:.9rem;margin:0}:root[data-theme=dark] .pbv-timeline{color:var(--text-color)}:root[data-theme=dark] .pbv-timeline-desc{color:var(--muted-text)}:root[data-theme=dark] .pbv-chip{border-color:#334155;background:#0f172ab3;color:var(--muted-text)}:root[data-theme=dark] .pbv-chip:hover{border-color:#64748b;color:var(--text-color)}:root[data-theme=dark] .pbv-chip-active{background:#e2e8f0;color:#0f172a;border-color:#e2e8f0;box-shadow:0 10px 25px #00000059}:root[data-theme=dark] .pbv-timeline-axis{background:linear-gradient(180deg,#1f2a44,#334155,#1f2a44)}:root[data-theme=dark] .pbv-era-card{--card-bg: linear-gradient(135deg, #111c2e, #0f172a);--card-border: #1f2a44;--accent: #60a5fa;box-shadow:0 18px 40px #00000059}:root[data-theme=dark] .pbv-era-card:before{box-shadow:0 0 0 6px #0b1220}:root[data-theme=dark] .pbv-era-header{background:#0f172a99}:root[data-theme=dark] .pbv-era-header:focus-visible{outline-color:#e2e8f066}:root[data-theme=dark] .pbv-era-range{color:var(--muted-text)}:root[data-theme=dark] .pbv-era-toggle{border-color:#334155}:root[data-theme=dark] .pbv-era-toggle:before{border-top-color:#e2e8f0}:root[data-theme=dark] .pbv-era-card.is-open .pbv-era-toggle{background:#e2e8f0}:root[data-theme=dark] .pbv-era-card.is-open .pbv-era-toggle:before{border-top-color:#0f172a}:root[data-theme=dark] .pbv-era-summary{color:var(--muted-text)}:root[data-theme=dark] .pbv-era-tags span{background:#94a3b833;color:var(--muted-text)}:root[data-theme=dark] .pbv-event-row{background:#0f172a99;border-color:#1f2a44;box-shadow:inset 0 1px #94a3b814}:root[data-theme=dark] .pbv-event-date{color:var(--text-color)}:root[data-theme=dark] .pbv-event-notes{color:var(--muted-text)}