:root{
  --ink:#1f2a24; --ink-soft:#55645b; --dim:#78857d;
  --paper:#f5f5f0; --panel:#ffffff; --line:#dcded6;
  --green:#2c6e49; --green-deep:#1d4f34; --green-pale:#eef4ea;
  --font-sans:'Zen Kaku Gothic New','Hiragino Kaku Gothic ProN','Yu Gothic',sans-serif;
  --font-serif:'Zen Old Mincho','Hiragino Mincho ProN',serif;
  --bg:var(--paper); --ink2:var(--ink-soft); --ink3:var(--dim);
  --line2:#eceee6; --accent:var(--green); --code:#eef4ea;
  --shadow:0 1px 2px rgba(31,42,36,.05), 0 8px 24px -16px rgba(31,42,36,.22);
  --maxw:1120px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--paper); color:var(--ink);
  font-family:var(--font-sans);
  font-size:15px; line-height:1.75;
  overflow-wrap:break-word; word-break:normal; line-break:auto;
}
a{color:var(--green)}
main{max-width:var(--maxw); margin:0 auto; padding:24px 20px 56px}
h1,h2,h3,h4{line-height:1.45; letter-spacing:.005em}

/* header — 流山データアトラス / 流山マップと同じ帯 */
.header{
  display:flex; align-items:center; gap:16px 24px; flex-wrap:wrap;
  padding:12px 24px; padding-top:max(12px, env(safe-area-inset-top));
  background:var(--green-deep); color:#f2f5ee;
}
.brand{
  font-family:var(--font-serif); font-size:clamp(16px,2.2vw,20px); font-weight:700;
  letter-spacing:.03em; color:#f2f5ee; text-decoration:none; flex:1 1 auto;
  min-width:0; overflow-wrap:normal; word-break:keep-all;
}
.brand small{
  display:block; font-family:var(--font-sans); font-size:10.5px; font-weight:400;
  letter-spacing:.18em; opacity:.78;
}
.nav{display:flex; gap:6px}
.nav-link{
  color:#dfe8dc; text-decoration:none; padding:6px 12px; border-radius:7px; font-size:13.5px;
}
.nav-link:hover{background:rgba(255,255,255,.12)}
.nav-link.active{background:rgba(255,255,255,.16); color:#fff; font-weight:700}

/* hero */
.hero{padding:56px 0 32px; max-width:900px}
.hero.narrow{max-width:760px}
.kicker{margin:0 0 12px; font-size:13px; letter-spacing:.14em; color:var(--green-deep); font-weight:700}
.hero h1{margin:0 0 20px; font-size:clamp(26px,4vw,36px); font-weight:700; letter-spacing:.02em;
  font-family:var(--font-serif); color:var(--green-deep)}
.lede{margin:0; color:var(--ink2); font-size:16px; max-width:42em}
.lede a{color:var(--accent)}

.stats{display:grid; grid-template-columns:repeat(auto-fit,minmax(min(180px,100%),1fr)); gap:1px; margin-top:36px;
  background:var(--line); border:1px solid var(--line); border-radius:12px; overflow:hidden}
.stat{background:var(--panel); padding:16px 18px}
.stat-v{font-size:19px; font-weight:700; letter-spacing:-.01em}
.stat-l{font-size:13px; color:var(--ink2); margin-top:2px}
.stat-n{font-size:11.5px; color:var(--ink3); line-height:1.6; margin-top:6px}

/* filters */
.filters{display:flex; flex-wrap:wrap; align-items:center; gap:12px 24px; padding:18px 0 22px;
  border-top:1px solid var(--line); border-bottom:1px solid var(--line); margin-top:8px}
.filter-row{display:flex; align-items:center; gap:10px; flex-wrap:wrap}
.filter-lbl{font-size:12px; color:var(--ink3); letter-spacing:.08em}
.chips{display:flex; flex-wrap:wrap; gap:6px}
.chip{font:inherit; font-size:12.5px; line-height:1.4; padding:4px 11px; border-radius:999px; cursor:pointer;
  border:1px solid var(--line); background:var(--panel); color:var(--ink2)}
.chip:hover{border-color:var(--ink3)}
.chip.on{background:var(--c,var(--accent)); border-color:var(--c,var(--accent)); color:#fff}
.filter-count{margin:0 0 0 auto; font-size:12.5px; color:var(--ink3)}

/* grid */
.grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(min(330px,100%),1fr)); gap:14px; padding:28px 0}
.card{display:flex; flex-direction:column; background:var(--panel); border:1px solid var(--line);
  border-radius:14px; text-decoration:none; overflow:hidden; box-shadow:var(--shadow);
  transition:transform .14s ease, border-color .14s ease}
.card:hover{transform:translateY(-2px); border-color:var(--c)}
.card-head{display:flex; align-items:center; gap:10px; padding:12px 16px 0}
.card-id{font-size:11.5px; font-weight:700; letter-spacing:.1em; color:var(--c)}
.card-theme{font-size:11.5px; padding:2px 9px; border-radius:999px; color:var(--c);
  background:color-mix(in srgb, var(--c) 12%, transparent); border:1px solid color-mix(in srgb, var(--c) 30%, transparent)}
.card-theme.big{font-size:12.5px; padding:3px 12px; display:inline-block}
.card-body{display:flex; gap:14px; padding:12px 16px 14px; flex:1}
.card-ico{color:var(--c); flex:0 0 auto; opacity:.9}
.card h3{margin:0 0 8px; font-size:16.5px; font-weight:700; line-height:1.55}
.card-catch{margin:0; font-size:13px; color:var(--ink2); line-height:1.75}
.card-foot{display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap;
  padding:10px 16px; border-top:1px solid var(--line2); background:color-mix(in srgb,var(--c) 4%, transparent)}
.badges{display:flex; gap:5px}
.badge{font-size:10.5px; color:var(--ink3); border:1px solid var(--line); border-radius:4px; padding:1px 6px}
.meters{display:flex; align-items:center; gap:6px}
.meter-lbl{font-size:10.5px; color:var(--ink3)}
.meter{display:inline-flex; gap:2.5px; align-items:center; margin-right:4px}
.meter .dot{width:6px; height:6px; border-radius:50%; background:var(--line); display:block}
.meter .dot.on{background:var(--c,var(--accent))}

/* backlog */
.backlog{padding-top:20px; border-top:1px solid var(--line)}
.backlog h2{font-size:18px; margin:24px 0 4px}
.sub{color:var(--ink2); font-size:13.5px; margin:0 0 16px; max-width:76ch}
.sub a{color:var(--accent)}
.backlog-list{list-style:none; padding:0; margin:0; display:grid; grid-template-columns:repeat(auto-fill,minmax(min(300px,100%),1fr)); gap:1px;
  background:var(--line); border:1px solid var(--line); border-radius:12px; overflow:hidden}
.backlog-list li{background:var(--panel); padding:14px 16px; display:flex; flex-direction:column; gap:5px}
.backlog-list strong{font-size:14px}
.backlog-list span{font-size:12.5px; color:var(--ink2); line-height:1.7}

/* issue page */
.crumbs{font-size:12.5px; color:var(--ink3); padding:24px 0 0}
.crumbs a{color:var(--ink2); text-decoration:none}
.crumbs a:hover{color:var(--accent)}
.crumbs span{margin:0 6px}
.issue{max-width:900px; margin:0 auto}
.issue-head{padding:18px 0 30px; border-bottom:1px solid var(--line)}
.issue-head h1{margin:14px 0 14px; font-size:clamp(22px,3.6vw,32px); font-weight:700; letter-spacing:.02em;
  font-family:var(--font-serif); color:var(--green-deep)}
.issue-catch{margin:0; font-size:15.5px; color:var(--ink2); max-width:40em;
  border-left:3px solid var(--c); padding-left:14px}
.block{padding:38px 0; border-bottom:1px solid var(--line2)}
.block:last-of-type{border-bottom:none}
.block h2{display:flex; align-items:center; gap:10px; margin:0 0 18px; font-size:18px; font-weight:700}
.block h2 .n{display:inline-flex; align-items:center; justify-content:center; width:24px; height:24px;
  border-radius:6px; background:var(--c,var(--accent)); color:#fff; font-size:12px; font-weight:700; flex:0 0 auto}
.block h4{margin:22px 0 8px; font-size:13.5px; color:var(--ink2)}
.block.two{display:grid; grid-template-columns:1fr 1fr; gap:40px}
@media(max-width:760px){.block.two{grid-template-columns:1fr; gap:8px}}

.persona{display:flex; gap:16px; align-items:flex-start; background:var(--panel);
  border:1px solid var(--line); border-radius:12px; padding:18px 20px}
.persona-ico{color:var(--c); flex:0 0 auto}
.persona-label{font-weight:700; font-size:14.5px; margin-bottom:4px}
.persona p{margin:0; font-size:14px; color:var(--ink2)}
.pain{display:grid; grid-template-columns:1fr 1fr; gap:1px; margin:14px 0 0;
  background:var(--line); border:1px solid var(--line); border-radius:12px; overflow:hidden}
.pain>div{background:var(--panel); padding:14px 16px; min-width:0}
.pain dt{font-size:11.5px; letter-spacing:.08em; color:var(--c); font-weight:700; margin-bottom:4px}
.pain dd{margin:0; font-size:13.5px; color:var(--ink2); line-height:1.8}
@media(max-width:700px){.pain{grid-template-columns:1fr}}

/* scene svg */
.scene-wrap{background:var(--panel); border:1px solid var(--line); border-radius:14px; padding:16px; overflow-x:auto; -webkit-overflow-scrolling:touch}
.scene{width:100%; min-width:640px; height:auto; display:block}
.scene{--sc:var(--c,var(--accent))}
.scene .pnl-bg{fill:color-mix(in srgb, var(--sc) 5%, var(--panel)); stroke:var(--line)}
.scene .pnl-wall .pnl-bg{fill:color-mix(in srgb, var(--sc) 10%, var(--panel)); stroke:color-mix(in srgb,var(--sc) 35%,transparent); stroke-dasharray:5 4}
.scene .pnl-tab{fill:var(--sc); opacity:.92}
.scene .pnl-tablabel{fill:#fff; font-size:12.5px; font-weight:700;
  font-family:"Hiragino Kaku Gothic ProN","Noto Sans JP",system-ui,sans-serif}
.scene .pnl-icon{color:var(--sc)}
.scene .pnl-icon use{stroke:currentColor; fill:none}
.scene .pnl-text{fill:var(--ink2); font-size:13.5px;
  font-family:"Hiragino Kaku Gothic ProN","Noto Sans JP",system-ui,sans-serif}
.scene .arrow path{stroke:var(--ink3); stroke-width:2; fill:none; stroke-linecap:round; stroke-linejoin:round}

/* stories */
.stories{list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px}
.story{display:grid; grid-template-columns:1fr 1fr 1fr; gap:1px; background:var(--line);
  border:1px solid var(--line); border-radius:12px; overflow:hidden}
@media(max-width:760px){.story{grid-template-columns:1fr}}
.story-part{background:var(--panel); padding:13px 16px; font-size:13.5px; color:var(--ink); line-height:1.75}
.story-k{display:block; font-size:11px; letter-spacing:.09em; color:var(--c); font-weight:700; margin-bottom:3px}

/* evidence */
.evidence{display:grid; grid-template-columns:repeat(auto-fit,minmax(min(280px,100%),1fr)); gap:18px}
.ev-col h3{display:flex; align-items:center; gap:8px; margin:0 0 10px; font-size:13.5px; font-weight:700; color:var(--ink2)}
.ev-tag{font-size:10.5px; padding:2px 8px; border-radius:999px; color:#fff; letter-spacing:.04em}
.t-od{background:#0e7490}.t-council{background:#7c3aed}.t-voice{background:#b45309}
.ev-list{list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:8px}
.ev-list li{background:var(--panel); border:1px solid var(--line); border-radius:10px; padding:11px 13px}
.ev-name{font-size:13px; font-weight:700; line-height:1.6}
.ev-yr{font-weight:400; font-size:11.5px; color:var(--ink3); margin-left:4px}
.ev-cat{font-size:11px; color:var(--ink3); margin-top:2px}
.ev-fact{font-size:12.5px; color:var(--ink2); margin-top:6px; line-height:1.75}
.voices{list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:8px}
.voices li{background:var(--panel); border:1px solid var(--line); border-radius:10px; padding:11px 13px}
.voices blockquote{margin:0; font-size:12.5px; line-height:1.8; color:var(--ink); position:relative; padding-left:12px;
  border-left:2px solid color-mix(in srgb,var(--c) 45%, transparent)}
.voices cite{display:block; margin-top:6px; font-size:11px; color:var(--ink3); font-style:normal}

/* flow */
.flow{display:flex; align-items:stretch; gap:10px; flex-wrap:wrap}
.flow-step{flex:1 1 220px; background:var(--panel); border:1px solid var(--line); border-radius:12px; padding:13px 15px}
.flow-lbl{font-size:11px; letter-spacing:.09em; color:var(--c); font-weight:700; margin-bottom:8px}
.flow-chips{display:flex; flex-wrap:wrap; gap:5px}
.flow-chip{font-size:11.5px; border:1px solid var(--line); border-radius:5px; padding:2px 7px; color:var(--ink2); line-height:1.6}
.flow-form{font-size:14px; font-weight:700}
.flow-who{font-size:12.5px; color:var(--ink2); line-height:1.75}
.flow-arrow{display:flex; align-items:center; color:var(--ink3); font-size:18px}
@media(max-width:760px){.flow-arrow{transform:rotate(90deg); justify-content:center; width:100%}}
.features{margin:18px 0 0; padding-left:20px; font-size:13.5px; color:var(--ink2)}
.features li{margin:6px 0; line-height:1.8}

.kpi,.missing{margin:0; padding-left:20px; font-size:13.5px; color:var(--ink2)}
.kpi li,.missing li{margin:7px 0; line-height:1.8}
.feas{display:flex; flex-direction:column; gap:8px; background:var(--panel); border:1px solid var(--line);
  border-radius:10px; padding:13px 15px}
.feas-row{display:flex; align-items:center; gap:10px; font-size:13px}
.feas-row>span:first-child{width:88px; color:var(--ink2); font-size:12.5px}
.feas-row em{font-style:normal; color:var(--ink3); font-size:12px}
.feas-row .meter .dot{width:9px; height:9px}

.prevnext{display:grid; grid-template-columns:1fr 1fr; gap:12px; padding:32px 0 0; border-top:1px solid var(--line)}
.pn{display:block; text-decoration:none; background:var(--panel); border:1px solid var(--line);
  border-radius:12px; padding:13px 16px; font-size:13.5px; line-height:1.6}
.pn:hover{border-color:var(--accent)}
.pn span{display:block; font-size:11px; color:var(--ink3); letter-spacing:.08em; margin-bottom:3px}
.pn.next{text-align:right}
@media(max-width:600px){.prevnext{grid-template-columns:1fr}.pn.next{text-align:left}}

/* tables & misc */
.tpl{width:100%; border-collapse:collapse; font-size:13.5px; background:var(--panel);
  border:1px solid var(--line); border-radius:12px; overflow:hidden; display:table}
.tpl th,.tpl td{text-align:left; padding:11px 14px; border-bottom:1px solid var(--line2); vertical-align:top}
.tpl thead th{font-size:11.5px; letter-spacing:.07em; color:var(--ink3); background:color-mix(in srgb,var(--accent) 5%,transparent)}
.tpl tbody tr:last-child td{border-bottom:none}
.tpl td.num,.tpl th.num{text-align:right; font-variant-numeric:tabular-nums}
.tn{color:var(--accent); font-weight:700; width:28px}
.tname{font-weight:700; white-space:nowrap}
.tkey code{font-size:11.5px}
code{background:var(--code); border-radius:4px; padding:1px 5px; font-size:12.5px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.code{background:var(--code); border:1px solid var(--line); border-radius:10px; padding:14px 16px;
  overflow-x:auto; font-size:12px; line-height:1.7; color:var(--ink2);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.iconset{display:flex; flex-wrap:wrap; gap:6px; margin-top:18px}
.ic{display:inline-flex; align-items:center; gap:6px; border:1px solid var(--line); border-radius:8px;
  padding:5px 9px; background:var(--panel); color:var(--accent)}
.ic .lbl{color:var(--ink3); font-size:11.5px; padding:0; white-space:nowrap}
.usedlist{list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:1px;
  background:var(--line); border:1px solid var(--line); border-radius:12px; overflow:hidden}
.usedlist li{background:var(--panel); padding:10px 14px; display:flex; align-items:center; gap:8px; flex-wrap:wrap; font-size:13px}
.ds{flex:1 1 auto}
.pill{font-size:11px; text-decoration:none; border:1px solid var(--line); border-radius:999px;
  padding:1px 9px; color:var(--ink2)}
.pill:hover{border-color:var(--accent); color:var(--accent)}
.notes{list-style:disc; padding-left:20px}
.notes li{margin:6px 0}

.foot{
  border-top:1px solid var(--line);
  padding:16px 20px calc(16px + env(safe-area-inset-bottom));
  color:var(--dim); font-size:12px; line-height:1.85; text-align:center;
}
.foot p{margin:0 0 6px}
.foot a{color:var(--green)}
@media(max-width:700px){
  .header{padding:10px 14px; padding-top:max(10px, env(safe-area-inset-top)); gap:8px 12px}
  .brand{font-size:16px; flex-basis:100%; letter-spacing:.02em}
  .brand small{letter-spacing:.08em; font-size:10px}
  .nav{flex:1 1 auto; flex-wrap:wrap; width:100%}
  .nav-link{padding:8px 10px; font-size:12.5px}
  main{padding:18px 14px 44px}
  .hero{padding:28px 0 20px}
  .hero h1,.issue-head h1{font-size:1.45rem; letter-spacing:.01em}
  .lede,.issue-catch,.sub{max-width:none; font-size:15px}
  .pain{grid-template-columns:1fr}
  .story{grid-template-columns:1fr}
  .block.two{grid-template-columns:1fr; gap:8px}
  .tname{white-space:normal}
  .tpl th,.tpl td{padding:10px}
  .feas-row{flex-wrap:wrap}
  .feas-row>span:first-child{width:auto}
  .scene-wrap{margin-inline:-14px; padding:12px 14px; border-radius:0; border-left:none; border-right:none}
  .card-foot{align-items:flex-start}
  .filter-count{margin-left:0}
}