/* Years From Creation, one scroll: a dark panel so the era colors stand out. */
.bgcs,.cs-pop{--bg:#070b1a;--panel:#0f1530;--paper:#141c3a;--ink:#f2f4fb;--muted:#a6afc8;--line:#253055;--display:"Alegreya SC",Georgia,serif;--body:"Alegreya Sans","Segoe UI",system-ui,sans-serif;color-scheme:dark}
.bgcs[lang="ko"],.cs-pop[lang="ko"]{--display:"Noto Serif KR","Alegreya SC",serif;--body:"Noto Sans KR","Alegreya Sans",system-ui,sans-serif}
.bgcs *,.bgcs *::before,.bgcs *::after,.cs-pop *{box-sizing:border-box}
.bgcs{background:var(--bg);color:var(--ink);font:400 17px/1.5 var(--body);border-radius:22px;padding:24px max(16px,2.2vw) 22px;display:grid;gap:14px;grid-template-columns:minmax(0,1fr);margin:0 0 32px;width:min(1400px,calc(100vw - 48px));position:relative;left:50%;transform:translateX(-50%)}
.bgcs .cs-lead{margin:0;color:var(--muted);max-width:72ch}
.bgcs .cs-hint{display:flex;align-items:center;gap:12px;margin:0;justify-self:start;background:rgba(255,196,0,.12);border:2px solid #ffc400;border-radius:14px;padding:10px 16px;font-weight:800;line-height:1.35}
.bgcs .cs-hint svg{width:30px;height:30px;flex:none;color:#ffc400;animation:cstap 1.6s ease-in-out infinite}
.bgcs .cs-hint svg path{fill:none!important;stroke:currentColor!important;stroke-width:1.8px!important;stroke-linecap:round;stroke-linejoin:round}
@keyframes cstap{50%{transform:translateY(-4px)}}
.bgcs .cs-nav{display:flex;flex-wrap:wrap;gap:8px}
.bgcs .cs-pill{display:inline-flex;align-items:center;gap:8px;border:2px solid var(--c);background:transparent;color:var(--ink);border-radius:999px;padding:6px 14px 6px 6px;font:800 15px/1.1 var(--body);cursor:pointer;margin:0;text-transform:none;letter-spacing:0;box-shadow:none}
.bgcs .cs-pill i{font-style:normal;display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--c);color:#0a0f22;font-size:14px}
.bgcs .cs-pill.on,.bgcs .cs-pill:hover{background:var(--c);color:#0a0f22}
.bgcs .cs-pill.on i,.bgcs .cs-pill:hover i{background:#0a0f22;color:var(--c)}
.bgcs .cs-pill:focus-visible,.bgcs .cs-link:focus-visible,.bgcs .cs-bar:focus-visible,.bgcs .cs-ev:focus-visible,.bgcs .cs-scroll:focus-visible{outline:3px solid #fff;outline-offset:2px}
.bgcs .cs-mini{position:relative;display:flex;height:14px;border-radius:7px;overflow:hidden;cursor:pointer;gap:2px}
.bgcs .cs-mini span{display:block;height:100%}
.bgcs .cs-win{position:absolute;top:-1px;bottom:-1px;border:3px solid #fff;border-radius:7px;box-shadow:0 0 0 2px rgba(0,0,0,.6);pointer-events:none;transition:left .1s}
.bgcs .cs-wrap{position:relative}
.bgcs .cs-scroll{overflow-x:auto;overflow-y:hidden;border-radius:16px;background:var(--panel);border:1px solid var(--line);cursor:grab;scrollbar-color:#4a5788 transparent;overscroll-behavior-x:contain}
.bgcs .cs-scroll.dragging{cursor:grabbing;user-select:none}
.bgcs .cs-track{position:relative}
.bgcs .cs-arrow{position:absolute;top:50%;z-index:5;transform:translateY(-50%);width:46px;height:46px;border-radius:50%;border:2px solid #fff;background:rgba(7,11,26,.85);color:#fff;font:700 30px/1 var(--body);cursor:pointer;padding:0 0 4px;margin:0;box-shadow:0 6px 18px rgba(0,0,0,.5)}
.bgcs .cs-arrow.l{left:-8px}.bgcs .cs-arrow.r{right:-8px}
.bgcs .cs-arrow:disabled{opacity:.25;cursor:default}
.bgcs .cs-band{position:absolute;top:0;height:104px;padding:12px 16px;background:linear-gradient(180deg,var(--c),color-mix(in srgb,var(--c) 70%,#000));color:#0a0f22;border-right:3px solid var(--panel)}
.bgcs .cs-bin{position:sticky;left:16px;display:flex;flex-wrap:wrap;align-items:center;gap:8px 22px;height:100%;max-width:100%;width:max-content}
.bgcs .cs-bh{display:flex;align-items:center;gap:12px;min-width:0}
.bgcs .cs-n{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:#0a0f22;color:var(--c);font:800 22px/1 var(--display);flex:none}
.bgcs .cs-band h3{margin:0;font:800 24px/1.05 var(--display);color:#0a0f22}
.bgcs .cs-band p{margin:2px 0 0;font-size:14px;font-weight:700;color:#0a0f22;opacity:.85}
.bgcs .cs-links{display:flex;flex-wrap:wrap;gap:6px}
.bgcs .cs-link{display:inline-flex;align-items:center;gap:5px;background:#0a0f22;color:#fff!important;text-decoration:none!important;font:800 14px/1 var(--body);padding:8px 12px;border-radius:999px;white-space:nowrap;border:0}
.bgcs .cs-link:hover{background:#fff;color:#0a0f22!important}
.bgcs .cs-tint{position:absolute;bottom:0;background:linear-gradient(180deg,color-mix(in srgb,var(--c) 14%,transparent),transparent 60%);pointer-events:none}
.bgcs .cs-grid{position:absolute;width:0;border-left:1px solid rgba(255,255,255,.06);pointer-events:none}
.bgcs .cs-grid.major{border-left-color:rgba(255,255,255,.16)}
.bgcs .cs-tick{position:absolute;bottom:6px;transform:translateX(-50%);text-align:center;line-height:1.1;white-space:nowrap;font-variant-numeric:tabular-nums}
.bgcs .cs-tick b{display:block;font-size:13px;color:var(--ink)}
.bgcs .cs-tick span{display:block;font-size:11px;color:var(--muted)}
.bgcs .cs-tick:not(.major) b{color:var(--muted);font-weight:700}
.bgcs .cs-evl{position:absolute;width:0;border-left:2px dashed var(--c);opacity:.7;pointer-events:none}
.bgcs .cs-ev{position:absolute;height:22px;border-radius:11px;border:2px solid var(--c);background:var(--bg);color:var(--ink);font:800 12.5px/18px var(--body);padding:0 6px;white-space:nowrap;overflow:hidden;cursor:pointer;margin:0;text-transform:none;letter-spacing:0;box-shadow:none;z-index:2}
.bgcs .cs-ev:hover{background:var(--c);color:#0a0f22}
.bgcs .cs-bar{position:absolute;height:28px;border:0;border-radius:8px;background:var(--c);color:#0a0f22;padding:0;margin:0;cursor:pointer;font:800 14px/28px var(--body);text-align:left;text-transform:none;letter-spacing:0;box-shadow:0 0 0 0 transparent;transition:transform .12s,box-shadow .12s;z-index:1}
.bgcs .cs-bar span{position:absolute;left:8px;top:0;white-space:nowrap;pointer-events:none}
.bgcs .cs-bar.out span{left:calc(100% + 6px);color:var(--c)}
.bgcs .cs-bar:hover,.bgcs .cs-bar:focus-visible{transform:translateY(-2px);box-shadow:0 0 0 3px var(--panel),0 0 0 5px var(--c),0 8px 20px -6px var(--c);z-index:3}
.bgcs .cs-bar.k-est{background:repeating-linear-gradient(135deg,var(--c) 0 8px,color-mix(in srgb,var(--c) 55%,#000) 8px 14px)}
.bgcs .cs-bar.k-period{background:color-mix(in srgb,var(--c) 35%,transparent);border:2px dashed var(--c);color:var(--ink);line-height:24px}
.bgcs .cs-bar.k-period span{top:0}
.bgcs .cs-bar.k-focus{box-shadow:0 0 0 2px #fff,0 0 16px var(--c)}
.bgcs .cs-bar.k-prophecy{background:linear-gradient(90deg,var(--c),#ff8ad8);color:#1a0020}
.bgcs .cs-next{position:absolute;top:110px;width:240px;padding:16px;border-radius:16px;border:2px solid #ffd24a;background:rgba(255,210,74,.12);color:var(--ink)!important;text-decoration:none!important;display:flex;flex-direction:column;gap:6px}
.bgcs .cs-next b{font:800 20px/1.1 var(--display);color:#ffd24a}
.bgcs .cs-next span{font-size:14px;color:var(--muted)}
.bgcs .cs-next:hover{background:rgba(255,210,74,.25)}
.bgcs .cs-legend{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:14px;font-weight:700;color:var(--muted)}
.bgcs .cs-legend span{display:inline-flex;align-items:center;gap:7px}
.bgcs .cs-legend i{width:22px;height:12px;border-radius:3px;display:inline-block}
.bgcs .cs-legend i.hatch{background:repeating-linear-gradient(135deg,#ccc 0 4px,#555 4px 7px)}
.bgcs .cs-legend i.per{border:2px dashed #ccc;background:rgba(255,255,255,.15)}
.bgcs .cs-legend i.foc{background:#ccc;box-shadow:0 0 0 2px #fff,0 0 8px #fff}
.bgcs .cs-legend i.pro{background:linear-gradient(90deg,#e83cff,#ff8ad8)}
.bgcs .cs-note{margin:0;font-size:14px;color:var(--muted)}
/* pop-up */
.cs-pop{position:fixed;z-index:100000;width:min(340px,calc(100vw - 24px));background:var(--paper);color:var(--ink);font:400 15px/1.45 var(--body);border-radius:14px;padding:14px 16px 16px;box-shadow:0 18px 50px -12px rgba(0,0,0,.6),0 0 0 2px var(--c);pointer-events:none;border-top:8px solid var(--c);text-align:left}
.cs-pop[hidden]{display:none!important}
.cs-pop.pinned,.cs-pop.sheet{pointer-events:auto}
.cs-pop .era{font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--c)}
.cs-pop h4{margin:2px 0 4px;font:800 22px/1.15 var(--display);color:var(--ink)}
.cs-pop .yr{font-weight:800;font-variant-numeric:tabular-nums}
.cs-pop .bc{color:var(--muted);font-weight:700;font-size:14px}
.cs-pop p{margin:8px 0 0}
.cs-pop .kd{margin-top:8px;font-size:13px;color:var(--muted)}
.cs-pop .x{display:none;position:absolute;top:8px;right:8px;width:34px;height:34px;border-radius:50%;border:0;background:rgba(255,255,255,.12);color:#fff;font-size:20px;cursor:pointer;padding:0}
.cs-pop.pinned .x,.cs-pop.sheet .x{display:block}
.cs-pop.sheet{left:12px!important;right:12px;bottom:calc(12px + env(safe-area-inset-bottom,0px));top:auto!important;width:auto}
@media (max-width:700px){.bgcs{width:calc(100vw - 24px);border-radius:16px}.bgcs .cs-arrow{display:none}.bgcs .cs-nav{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px}.bgcs .cs-pill{font-size:13px;white-space:nowrap;flex:none}
.bgcs .cs-band{padding:8px 10px}.bgcs .cs-bin{max-width:calc(100vw - 80px);gap:6px 10px;align-content:center}.bgcs .cs-band h3{font-size:18px}.bgcs .cs-band p{display:none}.bgcs .cs-n{width:30px;height:30px;font-size:16px}.bgcs .cs-link{font-size:12px;padding:6px 9px}}
@media (prefers-reduced-motion:reduce){.bgcs .cs-hint svg{animation:none}.bgcs .cs-bar{transition:none}}