/* ═══════════════════════════════════════════════
   Chronicle Atlas — 共通構造スタイルシート
   全サブプロジェクト共通。配色（テーマカラー・勢力色）は含まない。
   配色は各 <name>/theme.css（:root変数）と、勢力色はJSがインラインstyleで適用する。
   ═══════════════════════════════════════════════ */

*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--font,'Noto Sans JP','Segoe UI',sans-serif);background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden}
a{color:var(--gold);text-decoration:none}
button{font-family:inherit;cursor:pointer}
::selection{background:var(--gold);color:#fff}
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--surface-3);border-radius:3px}

/* ─ Header ─ */
.sticky-header{position:sticky;top:0;z-index:100;background:linear-gradient(180deg,var(--bg) 60%,transparent);padding:10px 20px 6px;backdrop-filter:blur(12px)}
.header-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.header-row h1{font-size:1.35rem;color:var(--gold);white-space:nowrap;font-weight:700}
.header-row h1 span{font-size:.78rem;color:var(--text-dim);margin-left:8px;font-weight:400}
.back-to-atlas{color:var(--text-dim);text-decoration:none;font-size:.85rem;padding:4px 10px;border:1px solid var(--border-subtle);border-radius:6px;transition:.2s;flex-shrink:0}
.back-to-atlas:hover{color:var(--gold);border-color:var(--gold)}
.header-actions{margin-left:auto;display:flex;gap:6px}
.btn{background:var(--surface-2);border:1px solid var(--border-subtle);color:var(--text-dim);padding:5px 12px;border-radius:6px;cursor:pointer;font-size:.82rem;transition:.2s}
.btn:hover,.btn.active{background:var(--surface-3);color:var(--gold);border-color:var(--gold)}

/* ─ Era Nav ─ */
.era-nav{display:flex;gap:4px;overflow-x:auto;padding:8px 0 4px;scrollbar-width:none}
.era-nav::-webkit-scrollbar{display:none}
.era-tab{white-space:nowrap;padding:5px 14px;border-radius:999px;font-size:.82rem;color:var(--text-dim);cursor:pointer;border:1px solid transparent;transition:.2s;flex-shrink:0;user-select:none}
.era-tab:hover{color:var(--text);background:var(--surface-2)}
.era-tab.active{background:var(--gold-dim);color:var(--gold);border-color:var(--gold);font-weight:700}

/* ─ Controls Row ─ */
.controls-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center;padding:4px 0}
.controls-row>div{display:flex;gap:4px;flex-wrap:wrap}
.filter-btn{background:none;border:1px solid var(--border-subtle);color:var(--text-dim);padding:3px 10px;border-radius:999px;font-size:.78rem;cursor:pointer;transition:.2s;white-space:nowrap}
.filter-btn:hover{color:var(--text);border-color:var(--text-dim)}
.filter-btn.active{background:var(--gold-dim);color:var(--gold);border-color:var(--gold)}
.search-box{margin-left:auto}
.search-box input{background:var(--surface-2);border:1px solid var(--border-subtle);color:var(--text);padding:4px 12px;border-radius:6px;font-size:.82rem;width:180px;transition:border .2s}
.search-box input:focus{outline:none;border-color:var(--gold)}

/* ─ Main Layout: sidebar(fixed) | timeline(flex) | map(fixed) ─ */
.main-layout{display:flex;height:calc(100vh - 140px);overflow:hidden}
.sidebar{width:260px;min-width:260px;background:var(--surface);border-right:1px solid var(--border-subtle);overflow-y:auto;flex-shrink:0;scrollbar-width:thin;scrollbar-color:var(--surface-3) transparent}
.sidebar::-webkit-scrollbar{width:4px}
.sidebar::-webkit-scrollbar-thumb{background:var(--surface-3);border-radius:2px}
.sidebar-overlay{display:none}
.content-area{flex:1;display:flex;gap:0;min-width:0;overflow:hidden}
.timeline-column{flex:1;min-width:0;padding:8px 18px 40px;overflow-y:auto}

/* sidebar internals */
.sidebar-clear-bar{display:none;align-items:center;justify-content:space-between;padding:5px 8px;margin-bottom:6px;background:var(--gold-dim);border:1px solid var(--gold);border-radius:6px;font-size:.78rem;color:var(--gold);position:sticky;top:0;z-index:10}
.sidebar-group-toggle{display:flex;gap:6px;padding:6px 8px 2px}
.sidebar-group-toggle .filter-btn{flex:1;text-align:center}
.sidebar-field-filter{display:flex;align-items:center;justify-content:space-between;gap:6px;padding:6px 8px;margin-bottom:4px}
.sidebar-field-filter label{font-size:.78rem;color:var(--text-dim)}
.sidebar-field-filter select{background:var(--surface-2);color:var(--text);border:1px solid var(--border-subtle);border-radius:6px;padding:3px 6px;font-size:.78rem;font-family:inherit;cursor:pointer}
.sidebar-field-filter select:hover{border-color:var(--text-dim)}
.clear-char-filter{background:none;border:none;color:var(--gold);cursor:pointer;font-size:.78rem}
.sidebar-section{margin-bottom:2px;border-bottom:1px solid var(--border-subtle)}
.sidebar-header{display:flex;justify-content:space-between;align-items:center;padding:8px;cursor:pointer;font-size:.85rem;font-weight:700;color:var(--text-dim);border-radius:4px;transition:.15s;user-select:none}
.sidebar-header:hover{background:var(--surface-2);color:var(--text)}
.sidebar-header.collapsed .arrow{transform:rotate(-90deg)}
.sidebar-header .arrow{transition:transform .2s;font-size:.7rem}
.sidebar-list{padding:0 0 6px}
.sidebar-list.hidden{display:none}
.sidebar-char{display:flex;align-items:center;gap:6px;padding:4px 8px 4px 16px;font-size:.83rem;cursor:pointer;border-radius:4px;transition:.15s;color:var(--text-dim)}
.sidebar-char:hover{background:var(--surface-2);color:var(--text)}
.sidebar-char.selected{background:var(--gold-dim);color:var(--gold)}
.sidebar-char .dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.sidebar-char .name-block{flex:1 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sidebar-char .reading{font-size:.72rem;color:var(--text-dim)}
.sidebar-char .axis-label{flex:0 0 auto;white-space:nowrap;margin-left:auto;padding-left:8px;font-size:.68rem;color:var(--text-dim);opacity:.75}

/* ─ Sticky Territory Map ─ */
.map-column{width:480px;flex-shrink:0;padding:8px 0 8px 8px;overflow-y:auto;overflow-x:hidden;scrollbar-width:thin;scrollbar-color:var(--surface-3) transparent}
.map-column::-webkit-scrollbar{width:4px}
.map-column::-webkit-scrollbar-thumb{background:var(--surface-3);border-radius:2px}

.map-panel{background:var(--surface);border:1px solid var(--border-subtle);border-radius:8px 0 0 8px;padding:14px 12px;position:sticky;top:110px}
.map-title{font-size:1.1rem;color:var(--gold);margin-bottom:12px;display:flex;align-items:center;gap:6px;flex-wrap:wrap;font-weight:700}
.map-title .map-year-badge{background:var(--gold-dim);border:1px solid var(--gold);padding:2px 10px;border-radius:999px;font-size:.78rem;font-weight:400}
.map-container{display:flex;flex-direction:column;gap:10px;width:100%;max-width:100%}
.map-grid{display:grid;gap:3px;width:100%;max-width:100%}
.map-cell{border-radius:4px;padding:10px 4px;text-align:center;font-size:.92rem;line-height:1.3;transition:background .4s,border-color .4s;border:2px solid transparent;cursor:default;overflow:hidden;min-width:0;word-break:break-all}
.map-cell.map-empty{background:rgba(255,255,255,.02);border-color:rgba(255,255,255,.03);cursor:default}
.map-cell.changed{animation:cellPulse .6s ease-out}
@keyframes cellPulse{0%{box-shadow:inset 0 0 12px rgba(255,255,200,.5)}100%{box-shadow:none}}
.map-cell .cell-name{font-weight:700;margin-bottom:2px;font-size:1rem}
.map-cell .cell-lord{font-size:.82rem;opacity:.85;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.map-legend{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:.88rem}
.map-legend-item{display:flex;align-items:center;gap:8px}
.map-legend-swatch{width:14px;height:14px;border-radius:3px;flex-shrink:0}

/* ─ Timeline: flat（デフォルト。カード縦積み） ─ */
.timeline{display:flex;flex-direction:column;gap:10px}
.no-results{text-align:center;color:var(--text-dim);padding:40px 0;font-size:.95rem}
.event-card{background:var(--surface);border:1px solid var(--border-subtle);border-radius:8px;padding:14px 16px;cursor:pointer;transition:border .2s,box-shadow .2s}
.event-card:hover{border-color:var(--gold);box-shadow:0 0 12px rgba(201,168,76,.08)}
.event-card.active-event{border-color:var(--gold);box-shadow:0 0 16px rgba(201,168,76,.15)}
.event-year{display:block;font-size:.78rem;color:var(--gold);margin-bottom:4px;font-weight:600}
.event-top{display:flex;align-items:center;gap:6px;margin-bottom:6px;flex-wrap:wrap}
.event-icon{font-size:1rem}
.event-title{font-weight:700;font-size:1rem;flex:1}
.event-cat{font-size:.72rem;color:var(--text-dim);background:var(--surface-2);padding:2px 8px;border-radius:999px;white-space:nowrap}
.event-source{font-size:.68rem;padding:1px 8px;border-radius:999px;white-space:nowrap}
.event-source.history-only{background:rgba(201,168,76,.18);color:var(--gold);border:1px solid var(--gold)}
.event-source.disputed{background:none;color:var(--text-dim);border:1px dashed var(--text-dim)}
.event-year.uncertain{border-bottom:1px dashed var(--text-dim);padding-bottom:1px;cursor:help}
.event-desc{font-size:.85rem;color:var(--text-dim);line-height:1.6;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.event-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:6px}
.event-location{font-size:.78rem;color:var(--text-dim)}
.event-chars{display:flex;flex-wrap:wrap;gap:4px}

/* ─ Footer note（AI生成の告知＋/about/への導線。本文の邪魔をしないよう小さく低コントラストに） ─ */
.footer-note{margin-top:18px;padding:10px 2px 4px;font-size:.72rem;color:var(--text-dim);opacity:.65;line-height:1.6}
.footer-note a{color:var(--text-dim);text-decoration:underline}
.footer-note a:hover{color:var(--gold)}

/* ─ 章セクション（eraPhasesごとの見出し。h1(ページ)→h2(章)→h3(出来事)の階層を作る） ─ */
.era-section{display:flex;flex-direction:column;gap:10px}
.era-section-title{font-size:.95rem;color:var(--gold);font-weight:700;padding-bottom:4px;border-bottom:1px solid var(--border-subtle)}

/* ─ Timeline: rail（左レール+年ドット型）。meta.layoutStyle="rail" のタイムラインのみ ─ */
body[data-layout="rail"] .timeline{position:relative;padding-left:90px;display:block}
body[data-layout="rail"] .era-section{display:block}
body[data-layout="rail"] .era-section-title{margin:28px 0 14px;padding-bottom:6px}
body[data-layout="rail"] .era-section:first-child .era-section-title{margin-top:0}
body[data-layout="rail"] .timeline::before{content:'';position:absolute;left:68px;top:0;bottom:0;width:2px;background:var(--border,var(--border-subtle))}
body[data-layout="rail"] .event-card{position:relative;margin-bottom:22px;padding:18px 22px;transition:border .2s,box-shadow .2s}
body[data-layout="rail"] .event-card:hover{box-shadow:0 4px 20px rgba(0,0,0,.4)}
body[data-layout="rail"] .event-year{position:absolute;left:-84px;top:20px;width:60px;text-align:right;margin-bottom:0}
body[data-layout="rail"] .event-year::after{content:'';position:absolute;right:-14px;top:50%;transform:translateY(-50%);width:9px;height:9px;border-radius:50%;background:var(--gold);border:2px solid var(--bg)}
body[data-layout="rail"] .event-card.active-event .event-year::after{background:#fff;box-shadow:0 0 8px var(--gold)}
body[data-layout="rail"] .event-desc{-webkit-line-clamp:2}
@media(max-width:900px){
  body[data-layout="rail"] .timeline{padding-left:55px}
  body[data-layout="rail"] .event-year{left:-50px;width:40px;font-size:.75rem}
  body[data-layout="rail"] .timeline::before{left:36px}
}
@media(max-width:768px){
  body[data-layout="rail"] .timeline{padding-left:46px}
  body[data-layout="rail"] .timeline::before{left:30px}
  body[data-layout="rail"] .event-year{left:-42px;width:35px;font-size:.72rem}
  body[data-layout="rail"] .event-year::after{right:-12px;width:7px;height:7px}
}
@media(max-width:480px){
  body[data-layout="rail"] .timeline{padding-left:38px}
  body[data-layout="rail"] .timeline::before{left:24px}
  body[data-layout="rail"] .event-year{left:-35px;width:30px;font-size:.68rem}
  body[data-layout="rail"] .event-year::after{right:-10px;width:6px;height:6px}
}

/* ─ Tags（勢力色はJSがインラインstyleで適用） ─ */
.tag{display:inline-block;padding:2px 8px;border-radius:4px;font-size:.78rem;cursor:pointer;transition:.15s;border:1px solid transparent}
.tag:hover{filter:brightness(1.2)}
.tag-event{background:var(--surface-2);color:var(--text-dim);border-color:var(--border-subtle)}
.tag-event:hover{color:var(--gold);border-color:var(--gold)}

/* ─ Modals ─ */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:200;display:none;align-items:center;justify-content:center;padding:20px;backdrop-filter:blur(4px)}
.modal-overlay.active{display:flex}
.modal{background:var(--surface);border:1px solid var(--border-subtle);border-radius:12px;max-width:640px;width:100%;max-height:85vh;overflow-y:auto;padding:24px;position:relative;animation:modalIn .2s ease-out}
@keyframes modalIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.modal-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:16px}
.modal-head h2{font-size:1.2rem;color:var(--gold)}
.modal-head .sub{font-size:.82rem;color:var(--text-dim);margin-top:4px}
.modal-head-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}
.modal-close{background:none;border:none;color:var(--text-dim);font-size:1.4rem;cursor:pointer;padding:2px 6px;border-radius:4px;transition:.15s;line-height:1}
.modal-close:hover{color:var(--text);background:var(--surface-2)}
.modal-section{margin-bottom:16px}
.modal-section h3{font-size:.92rem;color:var(--gold);margin-bottom:8px;border-bottom:1px solid var(--border-subtle);padding-bottom:4px}
.modal-section p{font-size:.88rem;color:var(--text-dim);line-height:1.7}
.trivia-box{background:var(--surface-2);border-left:3px solid var(--gold);padding:10px 14px;border-radius:0 6px 6px 0}
.trivia-box p{font-size:.84rem;line-height:1.6}
.char-events-grid{display:flex;flex-wrap:wrap;gap:4px}
.char-header-info{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.char-life{font-size:.78rem;color:var(--text-dim)}
.reading-line{font-size:.78rem;color:var(--text-dim);margin-top:2px}

/* Wikipedia Link */
.wiki-link{display:inline-flex;align-items:center;gap:4px;color:var(--text-dim);text-decoration:none;font-size:.82rem;padding:4px 10px;border:1px solid var(--border-subtle);border-radius:6px;transition:.2s;white-space:nowrap}
.wiki-link:hover{color:#fff;border-color:#fff;background:rgba(255,255,255,.08)}
.wiki-link svg{width:14px;height:14px;fill:currentColor;flex-shrink:0}

/* ═══ Responsive ═══ */
@media(max-width:1200px){
  .main-layout{flex-direction:column;height:auto;overflow:visible}
  .content-area{flex-direction:column;overflow:visible}
  .sidebar{width:200px}
  .map-column{width:100%;flex-shrink:1;padding:12px;overflow-y:visible}
  .map-panel{position:static}
  .timeline-column{padding:8px 14px 30px;overflow-y:visible}
  .map-cell{padding:8px 3px;font-size:.82rem}
  .map-cell .cell-name{font-size:.88rem}
  .map-cell .cell-lord{font-size:.74rem}
}
@media(max-width:900px){
  .sticky-header{padding:8px 12px 4px}
  .header-row h1{font-size:1.1rem}
  .sidebar{position:fixed;left:0;top:0;bottom:0;width:260px;z-index:150;background:var(--bg);transform:translateX(-100%);transition:transform .3s;padding-top:60px}
  .sidebar.mobile-open{transform:translateX(0)}
  .sidebar-overlay{display:block;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:140;opacity:0;pointer-events:none;transition:opacity .3s}
  .sidebar-overlay.active{opacity:1;pointer-events:auto}
  .timeline-column{padding:8px 10px 30px}
  .map-panel{border-radius:8px;padding:10px}
  .map-title{font-size:.95rem;margin-bottom:8px}
  .map-grid{gap:2px}
  .map-cell{padding:6px 2px;font-size:.75rem;border-radius:3px}
  .map-cell .cell-name{font-size:.8rem;margin-bottom:1px}
  .map-cell .cell-lord{font-size:.68rem}
  .map-legend{gap:4px 10px;font-size:.78rem}
  .map-legend-swatch{width:11px;height:11px}
  .controls-row{gap:4px}
  .filter-btn{padding:2px 7px;font-size:.72rem}
  .search-box input{width:140px;font-size:.78rem}
  .era-tab{padding:4px 10px;font-size:.76rem}
  .modal{padding:16px;max-width:95vw}
}
@media(max-width:480px){
  .header-row h1{font-size:.95rem}
  .header-row h1 span{display:none}
  .btn{padding:4px 8px;font-size:.75rem}
  .event-card{padding:10px 12px}
  .event-title{font-size:.9rem}
  .event-desc{font-size:.8rem}
  .map-cell{padding:4px 1px;font-size:.68rem}
  .map-cell .cell-name{font-size:.72rem}
  .map-cell .cell-lord{font-size:.62rem}
}

/* ─ Touch-friendly: disable hover transforms on touch devices ─ */
@media(hover:none){
  .event-card:hover{box-shadow:none;border-color:var(--border-subtle)}
  .sidebar-char:hover:not(.selected){background:transparent;color:var(--text-dim)}
  .filter-btn:hover:not(.active){color:var(--text-dim);border-color:var(--border-subtle);background:transparent}
  .filter-btn.active{color:var(--gold);border-color:var(--gold);background:var(--gold-dim)}
  .era-tab:hover:not(.active){color:var(--text-dim);background:transparent}
  .tag:hover{filter:none}
}