/* 未来史の星図。螺旋の盤と短冊の記録で、年・場所・出来事をたどる。本文はJSONから描く。 */
.atlas-page { --paper: #07080f; --surface: #0e101b; --ink: #ece4d2; --muted: #8f8b9c; --accent: #d9b779; --line: #262738; background: var(--paper); color: var(--ink); }
.atlas-page::before { content: ''; position: fixed; inset: 0; z-index: 0; pointer-events: none; background: radial-gradient(ellipse at 38% 45%, #1b1f3a55, transparent 60%), radial-gradient(ellipse at 90% 10%, #3a2a1a33, transparent 45%); }
.atlas-page::after { content: ''; position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: .5; mix-blend-mode: soft-light; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E"); }
.atlas-page .masthead { position: relative; z-index: 2; padding: 18px 4vw; border-bottom: 1px solid #d9b77922; }
.atlas-page .brand { font: 17px/1.4 var(--serif); letter-spacing: .3em; text-decoration: none; }
.atlas-page .brand::before { content: '✶'; color: var(--accent); font-size: 15px; letter-spacing: 0; }
.atlas-page .masthead-actions a { font-size: 13px; letter-spacing: .2em; color: var(--muted); }
.atlas-page .masthead-actions a:hover { color: var(--ink); }
.atlas-page .masthead-actions a:first-child { display: none; }
.atlas-page .home { position: relative; z-index: 1; max-width: none; padding: 0; margin: 0; }
.atlas-page .footer { position: relative; z-index: 1; max-width: none; margin: 0; padding: 14px 4vw; font-size: 12px; letter-spacing: .12em; border-top: 1px solid #d9b77922; }
.atlas-page .footer a { text-decoration: none; }
.atlas-page .archive-hero, .atlas-page .archive-stats, .atlas-page .era-explorer { display: none; }
.atlas-page .library { max-width: 1400px; margin: auto; padding: 3rem 4vw; }

.sky { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) 420px; height: calc(100svh - 62px); min-height: 640px; }
.sky-chart { position: relative; min-width: 0; overflow: hidden; }
.sky-chart canvas { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; display: block; touch-action: none; cursor: grab; }
/* 面影。針の年に近い絵が盤の奥に薄く浮かび、年を進めると切れ目なく入れ替わる。 */
.sky-backdrop { position: absolute; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.sky-backdrop img { position: absolute; inset: -4%; width: 108%; height: 108%; object-fit: cover; opacity: 0; filter: saturate(.5) brightness(.6) contrast(1.05) blur(1.2px); -webkit-mask-image: radial-gradient(ellipse 72% 72% at 50% 50%, #000 18%, transparent 76%); mask-image: radial-gradient(ellipse 72% 72% at 50% 50%, #000 18%, transparent 76%); transition: opacity 1.8s ease; }
.sky-backdrop-caption { position: absolute; z-index: 2; left: 4vw; top: 24px; display: flex; flex-direction: column; align-items: flex-start; gap: 1px; width: auto; height: auto; max-width: 300px; padding: 6px 12px 6px 10px; border: 0; border-left: 1px solid #d9b77966; background: transparent; color: var(--ink); text-align: left; transition: opacity 1.2s ease, border-color .3s; }
.sky-backdrop-caption:hover { border-color: var(--accent); }
.sky-backdrop-kicker { font: 10.5px ui-monospace, monospace; letter-spacing: .28em; color: var(--accent); }
.sky-backdrop-caption span:not(.sky-backdrop-kicker) { font: 11px ui-monospace, monospace; letter-spacing: .12em; color: var(--muted); }
.sky-backdrop-caption strong { font: 13.5px/1.6 var(--serif); font-weight: 400; letter-spacing: .06em; }
.chart-status { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); margin: 0; font-size: 13px; color: var(--muted); }
.chart-tools { position: absolute; z-index: 2; left: 4vw; bottom: 26px; display: flex; gap: 6px; }
.chart-zoom { position: absolute; z-index: 2; right: 24px; top: 24px; display: flex; gap: 6px; }
.chart-zoom button[data-chart-zoom] { width: 34px; padding: 0; font-size: 16px; }
.chart-tools button, .chart-zoom button, .petition button { width: auto; height: 34px; padding: 0 13px; border: 1px solid #d9b77938; border-radius: 2px; background: #07080fb0; color: #bdb6a6; font-size: 12.5px; letter-spacing: .08em; backdrop-filter: blur(8px); transition: color .2s, border-color .2s; }
.chart-tools button:hover, .chart-zoom button:hover, .petition button:hover { color: var(--ink); border-color: var(--accent); }
.chart-tools button[aria-pressed="true"] { color: var(--accent); }
.chart-tools [data-lines][aria-pressed="false"] { text-decoration: line-through; color: var(--muted); }
.sky-tooltip { position: absolute; z-index: 3; left: 0; top: 0; max-width: 240px; padding: 10px 14px; border: 1px solid #d9b77966; border-left-width: 3px; background: #07080fee; backdrop-filter: blur(10px); pointer-events: none; box-shadow: 0 12px 40px #0009; }
.sky-tooltip-picture { display: block; width: calc(100% + 28px); margin: -10px -14px 9px; aspect-ratio: 3 / 2; object-fit: cover; filter: saturate(.8); }
.sky-tooltip span { display: block; font: 11px/1.6 ui-monospace, monospace; letter-spacing: .1em; color: var(--accent); }
.sky-tooltip strong { display: block; margin-top: 4px; font: 15px/1.7 var(--serif); font-weight: 400; }
.petition { position: absolute; z-index: 2; right: 24px; bottom: 26px; display: flex; align-items: center; gap: 16px; }
.petition-reply { font: 14px/1.6 var(--serif); letter-spacing: .12em; color: var(--ink); min-height: 1.6em; }
.petition-reply:not(:empty) { animation: reply-appear 1.2s ease-out both; }
@keyframes reply-appear { from { opacity: 0; letter-spacing: .4em; } to { opacity: 1; letter-spacing: .12em; } }
.sky-nojs { position: absolute; left: 4vw; bottom: 80px; z-index: 2; font-size: 13px; color: var(--muted); }

.ledger { position: relative; z-index: 1; display: flex; flex-direction: column; min-height: 0; padding: 26px 28px 0; border-left: 1px solid #d9b77926; background: linear-gradient(180deg, #0b0d18f2, #07080ff8); overflow-y: auto; scrollbar-width: thin; scrollbar-color: #3a3b4f transparent; }
.ledger-kicker { font: 11px/1.6 ui-monospace, monospace; letter-spacing: .28em; color: var(--accent); }
.year-control { display: flex; align-items: baseline; gap: 6px; margin-top: 6px; }
.year-control input { width: 4.2ch; padding: 0; border: 0; border-bottom: 1px solid transparent; background: transparent; color: var(--ink); font: 300 62px/1.1 Georgia, "Times New Roman", serif; letter-spacing: -.04em; appearance: textfield; }
.year-control input::-webkit-inner-spin-button { appearance: none; }
.year-control input:focus { outline: 0; border-bottom-color: var(--accent); }
.year-unit { font: 14px var(--serif); color: var(--muted); }
.play { margin-left: auto; width: 36px; height: 36px; border-radius: 50%; border: 1px solid #d9b77955; color: var(--accent); font-size: 11px; align-self: center; }
.play[aria-pressed="true"] { background: #d9b77922; }
.era-title { margin: 2px 0 12px; font: 15px/1.7 var(--serif); letter-spacing: .05em; }
.time-modes { display: flex; gap: 14px; }
.time-modes button { width: auto; height: auto; padding: 4px 0; border: 0; border-bottom: 1px solid transparent; font-size: 12.5px; letter-spacing: .1em; color: var(--muted); }
.time-modes button[aria-pressed="true"] { color: var(--ink); border-bottom-color: var(--accent); }
.ledger input[type="range"] { width: 100%; height: 2px; margin: 16px 0 8px; padding: 0; border: 0; appearance: none; background: linear-gradient(to right, var(--accent) var(--position, 0%), #2c2d40 var(--position, 0%)); }
.ledger input[type="range"]::-webkit-slider-thumb { appearance: none; width: 12px; height: 12px; border-radius: 50%; background: var(--ink); box-shadow: 0 0 12px #ece4d288; }
.ledger input[type="range"]::-moz-range-thumb { width: 10px; height: 10px; border: 0; border-radius: 50%; background: var(--ink); }
.chapters { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; }
.chapters button { flex: 1 0 auto; width: auto; height: 28px; padding: 0 5px; border: 0; border-top: 1px solid #2c2d40; font: 11px ui-monospace, monospace; color: var(--muted); }
.chapters button[aria-current="true"] { color: var(--ink); border-top-color: var(--accent); }
.chapters button:hover { color: var(--ink); }
.ledger-label { margin: 0 0 6px; font: 11px/1.6 ui-monospace, monospace; letter-spacing: .28em; color: var(--muted); }
.lamps, .legend { margin-top: 22px; }
.lamp-row, .legend-row { display: flex; flex-wrap: wrap; gap: 4px 6px; }
.lamp, .legend-item { display: inline-flex; align-items: center; gap: 7px; width: auto; height: 30px; padding: 0 10px 0 8px; border: 1px solid transparent; border-radius: 15px; font-size: 12.5px; color: #bdb6a6; transition: color .2s, border-color .2s, background .2s; }
.lamp small { font: 10.5px ui-monospace, monospace; color: var(--muted); }
.lamp-light { width: 7px; height: 7px; border-radius: 50%; background: #3b3c52; box-shadow: none; transition: background .3s, box-shadow .3s; }
.lamp[style*="--depth: 1"] { margin-left: 4px; } .lamp[style*="--depth: 2"] { margin-left: 8px; }
.lamp:hover, .legend-item:hover { color: var(--ink); border-color: #d9b77944; }
.lamp[aria-pressed="true"] { color: var(--ink); background: #d9b77914; border-color: #d9b77966; }
.lamp[aria-pressed="true"] .lamp-light { background: var(--accent); box-shadow: 0 0 10px var(--accent), 0 0 22px #d9b77966; }
.lamp.is-empty { opacity: .45; }
.legend-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--star); box-shadow: 0 0 8px var(--star); opacity: .8; }
.legend-item[aria-pressed="true"] { color: var(--ink); border-color: var(--star); background: color-mix(in srgb, var(--star) 12%, transparent); }
.ledger-search { margin-top: 20px; }
.ledger-search input { width: 100%; padding: 8px 0; border: 0; border-bottom: 1px solid #2c2d40; border-radius: 0; background: transparent; font-size: 13.5px; color: var(--ink); }
.ledger-search input:focus { outline: 0; border-bottom-color: var(--accent); }
.ledger-heading { display: flex; align-items: baseline; gap: 12px; margin-top: 24px; }
.ledger-heading .eyebrow { margin: 0; font-size: 11px; letter-spacing: .28em; }
.ledger-heading h2 { margin: 0; font: 17px/1.5 var(--serif); font-weight: 400; letter-spacing: .06em; }
.records-count { margin-left: auto; font: 300 26px/1 Georgia, serif; color: var(--muted); }
.result-context { margin: 6px 0 0; font-size: 11.5px; color: var(--muted); letter-spacing: .05em; }
.tanzaku { flex: 0 0 auto; display: flex; gap: 8px; margin-top: 12px; padding: 10px 0 16px; overflow-x: auto; overscroll-behavior-x: contain; scrollbar-width: thin; scrollbar-color: #3a3b4f transparent; }
.tanzaku:focus-visible { outline-offset: -2px; }
.strip { position: relative; isolation: isolate; overflow: hidden; flex: 0 0 66px; width: 66px; height: 292px; display: flex; flex-direction: row; align-items: center; gap: 10px; padding: 14px 0 12px; writing-mode: vertical-rl; text-orientation: mixed; border: 0; border-top: 2px solid var(--star); border-radius: 2px 2px 0 0; background: linear-gradient(180deg, color-mix(in srgb, var(--star) 12%, #10121f), #0b0c16 70%); color: var(--ink); text-align: start; transition: transform .35s cubic-bezier(.16, 1, .3, 1), box-shadow .35s; }
.strip:hover, .strip:focus-visible { transform: translateY(-6px); box-shadow: 0 14px 30px #0008, 0 0 0 1px color-mix(in srgb, var(--star) 45%, transparent); }
/* 絵のある短冊は、下のほうに絵を薄く透かす。触れると絵が浮かぶ。 */
.strip.has-picture::before { content: ''; position: absolute; inset: 0; z-index: -1; background: var(--picture) center / cover no-repeat; opacity: .22; filter: saturate(.7); -webkit-mask-image: linear-gradient(to top, #000 15%, transparent 80%); mask-image: linear-gradient(to top, #000 15%, transparent 80%); transition: opacity .4s; }
.strip.has-picture:hover::before, .strip.has-picture:focus-visible::before { opacity: .55; }
.ledger-pictures { flex: 0 0 auto; margin-top: 2px; padding-bottom: 14px; }
.picture-row { display: flex; gap: 10px; overflow-x: auto; padding-bottom: 6px; scrollbar-width: thin; scrollbar-color: #3a3b4f transparent; }
.picture-card { position: relative; flex: 0 0 150px; width: 150px; height: auto; padding: 0; border: 1px solid #d9b77933; border-radius: 2px; background: #0b0c16; color: var(--ink); text-align: left; overflow: hidden; transition: border-color .3s, transform .35s cubic-bezier(.16, 1, .3, 1); }
.picture-card img { display: block; width: 100%; aspect-ratio: 3 / 2; object-fit: cover; filter: saturate(.75) brightness(.85); transition: filter .4s, transform .8s ease; }
.picture-card:hover, .picture-card:focus-visible { border-color: var(--star); transform: translateY(-3px); }
.picture-card:hover img, .picture-card:focus-visible img { filter: none; transform: scale(1.04); }
.picture-card-year { display: block; padding: 6px 8px 0; font: 10.5px ui-monospace, monospace; letter-spacing: .12em; color: color-mix(in srgb, var(--star) 80%, #fff); }
.picture-card-title { display: -webkit-box; padding: 0 8px 8px; font: 12.5px/1.6 var(--serif); letter-spacing: .04em; overflow: hidden; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.strip-year { flex: 0 0 auto; font: 11px ui-monospace, monospace; letter-spacing: .12em; color: color-mix(in srgb, var(--star) 80%, #fff); white-space: nowrap; }
.strip-title { flex: 1 1 auto; min-height: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font: 15px/1.5 var(--serif); letter-spacing: .1em; }
.strip-place { flex: 0 0 auto; max-height: 70px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 10.5px; letter-spacing: .08em; color: var(--muted); }
.ledger-empty { padding: 20px 0; font-size: 13px; color: var(--muted); }
.ledger-empty button { display: block; width: auto; height: auto; margin-top: 8px; padding: 6px 0; border: 0; font-size: 12.5px; color: var(--accent); }
.ledger-footer { display: flex; justify-content: space-between; margin-top: auto; padding: 14px 0 18px; border-top: 1px solid #d9b77926; font-size: 12.5px; letter-spacing: .12em; text-decoration: none; color: #bdb6a6; }
.ledger-footer:hover { color: var(--ink); }

/* 記録紙。年と場所を掲げ、本文と星のつながりを並べる。 */
.event-dialog { width: min(1180px, calc(100vw - 2rem)); max-width: none; max-height: calc(100dvh - 3rem); padding: 0; border: 1px solid #d9b77955; border-radius: 0; color: var(--ink); background: #0a0b15; overflow-y: auto; overscroll-behavior: contain; box-shadow: 0 30px 160px #000c; --star: #d9b779; }
.event-dialog::backdrop { background: #03040abf; backdrop-filter: blur(10px); }
.event-dialog[open] { display: grid; grid-template-columns: minmax(300px, .95fr) minmax(380px, 1.15fr); animation: record-open .4s ease both; }
@keyframes record-open { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.dialog-close { position: absolute; right: 12px; top: 12px; z-index: 2; width: 34px; height: 34px; border: 1px solid #d9b77944; border-radius: 50%; background: #0a0b15cc; color: var(--ink); font-size: 18px; line-height: 1; }
.detail-visual { position: relative; overflow: hidden; grid-column: 1; padding: 34px 34px 22px; border-bottom: 1px solid #d9b77926; background: radial-gradient(ellipse at 10% 120%, color-mix(in srgb, var(--star) 22%, transparent), transparent 60%); }
.detail-visual .eyebrow { margin: 0; font: 11px ui-monospace, monospace; letter-spacing: .28em; color: var(--accent); }
.detail-visual > span:first-of-type { display: block; margin-top: 10px; font: 300 56px/1.2 Georgia, serif; letter-spacing: -.03em; }
.detail-visual-caption { font-size: 12.5px; letter-spacing: .12em; color: var(--muted); }
/* 見出し絵。年と場所の面に絵を敷き、押すと大きく見える。 */
.detail-visual.has-picture { display: flex; flex-direction: column; justify-content: flex-end; min-height: 320px; }
.detail-visual.has-picture > .eyebrow, .detail-visual.has-picture > span, .detail-visual.has-picture > .detail-picture-caption { position: relative; z-index: 1; pointer-events: none; }
.detail-picture { position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; padding: 0; border: 0; background: #000; cursor: zoom-in; }
.detail-picture img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.8) brightness(.9); transition: transform 1.2s ease, filter .6s; }
.detail-picture::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, #0a0b1522 0%, #0a0b15b8 62%, #0a0b15 100%); transition: background .6s; }
.detail-picture:hover img, .detail-picture:focus-visible img { filter: none; transform: scale(1.03); }
.detail-picture-hint { position: absolute; left: 12px; top: 12px; z-index: 1; padding: 3px 9px; border: 1px solid #d9b77955; background: #0a0b15aa; font-size: 10.5px; letter-spacing: .12em; color: #bdb6a6; opacity: 0; transition: opacity .3s; }
.detail-picture:hover .detail-picture-hint, .detail-picture:focus-visible .detail-picture-hint { opacity: 1; }
.detail-picture-caption { margin: 10px 0 0; font: 12.5px/1.8 var(--serif); color: #d8d0bf; }
.detail-visual.is-expanded { min-height: min(70dvh, 640px); }
.detail-visual.is-expanded .detail-picture { cursor: zoom-out; }
.detail-visual.is-expanded .detail-picture img { object-fit: contain; filter: none; transform: none; }
.detail-visual.is-expanded .detail-picture::after { background: linear-gradient(180deg, transparent 60%, #0a0b15e6 100%); }
.detail-copy { grid-column: 1; padding: 22px 34px 30px; }
.detail-copy h2 { margin: 0 0 12px; font: 24px/1.7 var(--serif); font-weight: 400; letter-spacing: .04em; }
.detail-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.detail-tags span { padding: 2px 10px; border: 1px solid color-mix(in srgb, var(--star) 50%, transparent); border-radius: 12px; font-size: 11px; letter-spacing: .1em; color: color-mix(in srgb, var(--star) 85%, #fff); }
.detail-summary { margin: 22px 0; font: 15.5px/2.2 var(--serif); color: #d8d0bf; }
.detail-links { display: flex; flex-wrap: wrap; gap: 10px; font-size: 13px; }
.detail-source { display: inline-block; padding: 8px 16px; background: var(--accent); color: #14120c; text-decoration: none; letter-spacing: .1em; }
.detail-copy figure { margin: 1rem 0; } .detail-copy figcaption { font-size: 12px; color: var(--muted); }
.related-events .eyebrow { margin: 20px 0 4px; font-size: 11px; letter-spacing: .28em; }
.related-events button { display: block; width: 100%; height: auto; padding: 8px 0; border: 0; border-bottom: 1px solid #262738; text-align: left; font: 13.5px/1.7 var(--serif); color: var(--ink); }
.detail-navigation { display: flex; justify-content: space-between; align-items: center; margin-top: 24px; padding-top: 14px; border-top: 1px solid #262738; }
.detail-navigation button { width: auto; height: auto; border: 0; padding: 4px 0; font-size: 12.5px; letter-spacing: .1em; color: #bdb6a6; }
.detail-navigation > span { font: 11px ui-monospace, monospace; letter-spacing: .12em; color: var(--muted); }
.event-graph { grid-column: 2; grid-row: 1 / 3; min-width: 0; padding: 34px 26px; border-left: 1px solid #d9b77926; background: radial-gradient(ellipse at 50% 30%, #1b1f3a44, transparent 70%); }
.event-graph h3 { margin: 0 0 8px; font: 15px/1.6 var(--serif); font-weight: 400; letter-spacing: .12em; color: var(--accent); }
.event-graph p { margin: 0 0 12px; font-size: 12px; line-height: 1.8; color: var(--muted); }
.event-graph-scroll { overflow: auto; max-height: 65dvh; scrollbar-width: thin; scrollbar-color: #3a3b4f transparent; }
.event-graph svg { display: block; width: 100%; min-width: 540px; }
.event-graph-edge { fill: none; stroke: #b89c6a; stroke-width: 1.2; }
.event-graph-relation { fill: #cbb48c; font: 10px system-ui; }
.event-graph-node { cursor: pointer; }
.event-graph-node rect { fill: #0f1120; stroke: #4a4c66; }
.event-graph-node text { fill: var(--ink); font: 13px var(--serif); }
.event-graph-node[data-selected="true"] rect { stroke: var(--accent); fill: #221d12; }
.event-graph-node:hover rect, .event-graph-node:focus rect { stroke: var(--ink); stroke-width: 2; }
.event-dialog .glossary-tooltip { border-color: var(--accent); background: #0f1120f5; }

.motion-paused *, .motion-paused *::before, .motion-paused *::after { animation: none !important; transition: none !important; }
@media (prefers-reduced-motion: reduce) { .sky *, .event-dialog { animation: none !important; transition: none !important; } }

@media (max-width: 1180px) { .sky { grid-template-columns: minmax(0, 1fr) 360px; } .ledger { padding-inline: 20px; } }
@media (max-width: 900px) {
  .sky { display: block; height: auto; min-height: 0; }
  .sky-chart { height: min(100vw, 72svh); min-height: 360px; }
  .sky-chart canvas { touch-action: pan-y; }
  .chart-tools { left: 5vw; bottom: 12px; }
  .petition { right: 5vw; bottom: 12px; }
  .ledger { border-left: 0; border-top: 1px solid #d9b77926; padding: 22px 5vw 0; overflow: visible; }
  .year-control input { font-size: 48px; }
  .strip { height: 250px; flex-basis: 60px; width: 60px; }
  .event-dialog[open] { display: flex; flex-direction: column; }
  .event-graph { order: 3; border-left: 0; border-top: 1px solid #d9b77926; padding: 20px 5vw; }
  .event-graph-scroll { max-height: 260px; }
  .event-graph svg { min-width: 0; height: auto !important; min-height: 150px; }
  .detail-visual, .detail-copy { padding-inline: 5vw; }
  .detail-visual.has-picture { min-height: 240px; }
  .sky-backdrop-caption { left: 5vw; top: auto; bottom: 98px; max-width: 70vw; }
  .detail-visual > span:first-of-type { font-size: 44px; }
}
@media (max-width: 900px) { .petition { right: 5vw; bottom: 12px; } .chart-tools { bottom: 54px; } }