:root{
  --text:#111;
  --muted:#6b7280;
  --line:#e5e7eb;
  --card:#ffffff;
  --bg:#ffffff;
  --max: 1100px;

  --shadow-soft: 0 10px 28px rgba(0,0,0,.06);
  --radius: 18px;

  --head:#dbeafe;
}

*{ box-sizing:border-box; }

body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.5;
}

/* top nav */
.topbar{
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,.04);
}

.topbar-inner{
  max-width: var(--max);
  margin: 0 auto;
  padding: 22px 22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
}

.brand{
  font-weight:800;
  font-size:42px;
  letter-spacing:-.03em;
  color:#111;
  text-decoration:none;
}

.nav{
  display:flex;
  gap: 28px;
  font-size: 14px;
}

.nav a{
  color:#111;
  text-decoration:none;
  opacity:.85;
  font-weight:500;
  padding: 8px 10px;
  border-radius: 10px;
}

.nav a:hover{ opacity:1; }

.nav a.is-active{
  opacity:1;
  background:#f3f4f6;
}

/* page wrapper */
.u-main{
  max-width: var(--max);
  margin: 0 auto;
  padding: 20px 22px 60px;
}

/* page header */
.u-page-head{
  text-align:center;
  padding: 26px 0 10px;
}

.u-page-title{
  margin:0;
  font-size:44px;
  letter-spacing:-0.03em;
}

.u-page-subtitle{
  margin: 6px auto 0;
  max-width: 760px;
  font-size:12px;
  color: var(--muted);
}

/* sections */
.u-section{
  padding: 22px 0 0;
}

.u-h2{
  margin: 10px 0 12px;
  font-size: 30px;
  letter-spacing: -0.02em;
}

.u-h3{
  margin: 0 0 10px;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.u-copy{
  max-width: 860px;
}

.u-copy p{
  margin: 0 0 16px;
  color:#4b5563;
  font-size: 13px;
  line-height: 1.85;
}

.u-copy p:last-child{
  margin-bottom:0;
}

/* cards */
.u-card{
  border: 1px solid rgba(0,0,0,.06);
  border-radius: 16px;
  background: var(--card);
  box-shadow: var(--shadow-soft);
  padding: 18px;
}

/* table */
.u-table-wrap{
  width:100%;
  overflow-x:auto;
  border: 1px solid rgba(0,0,0,.06);
  border-radius: 16px;
  background:#fff;
  box-shadow: var(--shadow-soft);
}

.u-table{
  width:100%;
  min-width: 950px;
  border-collapse: collapse;
  background:#fff;
}

.u-table th{
  background: var(--head);
  font-size: 12px;
  font-weight: 700;
  text-align:center;
  padding: 12px 10px;
  border: 1px solid rgba(0,0,0,.06);
  line-height: 1.5;
}

.u-table td{
  border: 1px solid rgba(0,0,0,.06);
  padding: 12px 10px;
  font-size: 12px;
  line-height: 1.7;
  vertical-align: top;
  color:#374151;
}

.u-rowlabel{
  width: 220px;
  font-weight: 700;
  color:#111;
}

.u-center{
  text-align:center;
  vertical-align: middle;
}

/* who/how cards */
.u-card-row{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  max-width: 760px;
  margin: 0 0 18px;
}

.u-mini-card{
  border: 1px solid rgba(0,0,0,.06);
  border-radius: 16px;
  background: var(--card);
  box-shadow: var(--shadow-soft);
  padding: 18px;
}

.u-card-icon{
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display:grid;
  place-items:center;
  background:#f3f4f6;
  border: 1px solid rgba(0,0,0,.06);
  margin-bottom: 10px;
}

.u-icon{
  width:18px;
  height:18px;
  color:#111;
}

.u-mini-card h4{
  margin: 0 0 8px;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.u-mini-card p{
  margin:0;
  color:#4b5563;
  font-size: 13px;
  line-height: 1.85;
}

/* figjam image */
.u-figjam{
  margin: 18px 0 0;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,.06);
  background: #ffffff;
  max-width: 900px;
}

.u-figjam img{
  width:100%;
  height:auto;
  display:block;
}

.u-figjam-caption{
  padding: 10px 12px;
  font-size: 12px;
  color: var(--muted);
  background:#fff;
  border-top: 1px solid rgba(0,0,0,.06);
}

/* insights */
.u-insights{
  display:grid;
  gap: 18px;
  max-width: 860px;
}

.u-insight{
  border: 1px solid rgba(0,0,0,.06);
  border-radius: 16px;
  background: var(--card);
  box-shadow: var(--shadow-soft);
  padding: 18px;
}

.u-insight-title{
  margin: 0 0 10px;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.u-insight-body{
  margin: 0 0 10px;
  color:#4b5563;
  font-size: 13px;
  line-height: 1.85;
}

.u-evidence-list{
  margin: 0 0 12px 18px;
  padding:0;
}

.u-evidence-list li{
  margin-bottom: 8px;
  color:#4b5563;
  font-size: 13px;
  line-height: 1.85;
}

.u-quote{
  margin: 12px 0 12px;
  padding: 14px 16px;
  border-left: 3px solid rgba(0,0,0,.12);
  background: #fafafa;
  border-radius: 10px;
}

.u-quote p{
  margin: 0;
  font-weight: 800;
  color:#111;
  font-size: 14px;
  line-height: 1.55;
}

.u-insight-foot{
  margin: 0 0 10px;
  color:#6b7280;
  font-size: 13px;
  line-height: 1.85;
}

.u-design-link{
  margin:0;
  color:#374151;
  font-size: 13px;
  line-height: 1.85;
}

/* footer */
.foot{
  padding: 30px 0 10px;
}

.foot-muted{
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

/* responsive */
@media (max-width: 980px){
  .brand{ font-size: 36px; }
  .u-page-title{ font-size: 36px; }
  .u-h2{ font-size: 26px; }
  .u-card-row{ grid-template-columns: 1fr; }
}

@media (max-width: 520px){
  .nav{ gap: 14px; }
  .brand{ font-size: 32px; }
}