/* Research section: hub and long-form papers. Builds on home.css tokens (--green, --mint, --line, cards). */

.ptag { color:var(--green); font-weight:500; font-size:15px }
.links a[aria-current="page"] { color:var(--ink); font-weight:500 }

/* Hub */
.hub-hero { padding:clamp(56px,8vw,96px) 0 0 }
.hub-hero h1 { margin-top:10px; max-width:820px; font-size:clamp(38px,5vw,60px); line-height:1.05; letter-spacing:-.035em }
.hub-hero .dek { margin-top:20px; max-width:680px; color:var(--body); font-size:clamp(17px,1.5vw,19px) }
.hub-list { padding-top:clamp(40px,5vw,56px) }
.rcards { display:grid; gap:20px }
.rcard { display:grid; grid-template-columns:200px minmax(0,1fr); gap:32px; align-items:center; padding:20px; background:var(--card); border:1px solid var(--line); border-radius:var(--r-lg) }
.rcover img, .cover img { width:100%; height:auto; border-radius:10px; box-shadow:0 18px 40px -24px rgba(21,26,24,.5) }
.rcard h2 { margin-top:6px; font-size:clamp(22px,2.2vw,28px); line-height:1.2 }
.rcard h2 a { text-decoration:none } .rcard h2 a:hover { color:var(--green) }
.rcard p:not(.ptag):not(.meta):not(.rlinks) { margin-top:10px; color:var(--body); max-width:640px }
.meta { margin-top:10px; color:var(--muted); font-size:14px }
.rlinks { display:flex; flex-wrap:wrap; align-items:center; gap:10px 20px; margin-top:16px }
.dl { color:var(--green); font-weight:500; font-size:15px; text-underline-offset:4px }
.short { margin-top:32px; text-align:center; color:var(--body) } .short a { color:var(--green); font-weight:500 }

/* Paper hero */
.paper-hero { padding:clamp(40px,6vw,72px) 0 clamp(40px,5vw,56px); border-bottom:1px solid var(--line) }
.paper-hero-in { display:grid; grid-template-columns:minmax(0,1fr) 260px; gap:48px; align-items:center }
.crumbs { display:flex; gap:8px; margin-bottom:18px; color:var(--muted); font-size:14px } .crumbs a { color:var(--muted) } .crumbs a:hover { color:var(--ink) }
.paper-hero h1 { margin-top:8px; font-size:clamp(32px,4.2vw,52px); line-height:1.08; letter-spacing:-.03em }
.paper-hero .dek { margin-top:18px; max-width:680px; color:var(--body); font-size:clamp(17px,1.5vw,19px) }
.paper-hero .ctas { justify-content:flex-start; margin-top:28px }
.sz { margin-left:8px; font-size:13px; opacity:.8; font-weight:400 }
.cover { display:block }

/* Body: sticky contents beside the prose */
.paper-body { display:grid; grid-template-columns:220px minmax(0,1fr); gap:56px; align-items:start; padding-top:clamp(40px,5vw,56px) }
.toc { position:sticky; top:96px; font-size:14.5px }
.toc p { margin-bottom:10px; color:var(--muted); font-weight:500 }
.toc ol { display:grid; gap:2px; border-left:1px solid var(--line) }
.toc a { display:block; padding:6px 0 6px 14px; margin-left:-1px; border-left:2px solid transparent; color:var(--body); text-decoration:none; line-height:1.35 }
.toc a:hover { color:var(--ink) } .toc a.on { border-left-color:var(--green); color:var(--ink); font-weight:500 }
.toc-dl { display:inline-block; margin-top:18px; color:var(--green); font-weight:500; text-underline-offset:4px }

.prose { max-width:760px; min-width:0 }
.art-sec { padding-bottom:clamp(48px,6vw,72px); scroll-margin-top:96px }
.art-sec + .art-sec { padding-top:clamp(40px,5vw,56px); border-top:1px solid var(--line) }
.art-sec > h2 { margin-top:8px; font-size:clamp(26px,2.8vw,34px); line-height:1.15 }
.art-sec h3 { margin-top:36px; font-size:21px }
.art-sec h4 { font:600 17px/1.35 var(--head) }
.art-sec > p, .art-sec > .dots, .art-sec > .nums { margin-top:16px; color:#2f3633; font-size:17.5px; line-height:1.7 }
.art-sec .plead { margin:20px 0 0; max-width:none; color:var(--ink); font-size:clamp(19px,1.8vw,21px); line-height:1.55 }
.art-sec strong { font-weight:600; color:var(--ink) }
sup a { color:var(--green); font-size:11px; font-weight:600; text-decoration:none; padding:0 1px } sup a:hover { text-decoration:underline }
.dots { display:grid; gap:10px } .dots li { position:relative; padding-left:20px } .dots li::before { content:''; position:absolute; left:2px; top:.72em; width:7px; height:7px; border-radius:50%; background:var(--green) }
.nums { display:grid; gap:14px; counter-reset:n } .nums li { position:relative; padding-left:44px; counter-increment:n } .nums li::before { content:counter(n); position:absolute; left:0; top:2px; display:grid; place-items:center; width:28px; height:28px; border-radius:50%; background:var(--green); color:#fff; font:600 13px/1 var(--sans) }

.pq { margin:36px 0 0; padding:0 }
.pq p { font:500 clamp(19px,1.9vw,23px)/1.4 var(--head); letter-spacing:-.012em; color:var(--ink) }
.pq footer { margin-top:10px; color:var(--muted); font-size:14px }

.stats { display:grid; grid-template-columns:repeat(auto-fit,minmax(min(100%,210px),1fr)); gap:14px; margin-top:28px }
.stats li { padding:20px 22px; background:var(--card); border:1px solid var(--line); border-radius:var(--r-md) }
.stats b { display:block; font:500 clamp(28px,3vw,36px)/1.1 var(--head); letter-spacing:-.02em; color:var(--green) }
.stats li.hot b { color:#a2412e }
.stats span { display:block; margin-top:8px; color:var(--body); font-size:15px; line-height:1.55 }

.cards { display:grid; grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr)); gap:14px; margin-top:28px }
.cards li { padding:20px 22px; background:var(--card); border:1px solid var(--line); border-radius:var(--r-md) }
.cards p { margin-top:8px; color:var(--body); font-size:15.5px; line-height:1.6 }

.callout { margin-top:28px; padding:22px 24px; border-radius:var(--r-md); background:var(--mint) }
.callout.sand { background:var(--sand) } .callout.mint { background:var(--mint) }
.callout p { margin-top:8px; color:#2f3633; font-size:16px; line-height:1.65 }

.illus { display:inline-block; padding:3px 9px; border-radius:999px; background:#f9ece8; color:#8a3a2b; font:600 11.5px/1.4 var(--sans); letter-spacing:.06em; text-transform:uppercase; vertical-align:2px }
.illus-note { margin-top:24px !important; color:var(--body) !important; font-size:15px !important }

.chain { display:flex; flex-wrap:wrap; gap:8px; margin-top:24px }
.chain li { position:relative; padding:9px 14px; border:1px solid var(--line); border-radius:999px; background:var(--card); font-size:14.5px }
.chain li.hot { background:#f9ece8; border-color:#ecc9bf; color:#7e3326 }
.chain li + li::before { content:'→'; position:absolute; left:-15px; top:50%; transform:translate(-50%,-50%); color:var(--muted); font-size:12px }
.chain li + li { margin-left:14px }

/* Charts */
.chart { margin:28px 0 0; padding:20px 22px; background:var(--card); border:1px solid var(--line); border-radius:var(--r-md) }
.chart figcaption strong { display:block; font:600 16.5px/1.35 var(--head) } .chart figcaption span { display:block; margin-top:2px; color:var(--muted); font-size:14px }
.bars { display:grid; gap:10px; margin-top:16px }
.bars li { display:grid; grid-template-columns:minmax(0,190px) minmax(0,1fr) auto; gap:12px; align-items:center; font-size:14.5px }
.bl { color:var(--body) }
.bt { height:22px; background:#f1efe9; border-radius:6px; overflow:hidden } .bt i { display:block; height:100%; border-radius:6px; background:var(--green) } .bt i.hot { background:#a2412e }
.bars b { min-width:64px; text-align:right; font-weight:600; font-variant-numeric:tabular-nums }
.stacked li { grid-template-columns:90px minmax(0,1fr) }
.stack { display:flex; height:30px; border-radius:6px; overflow:hidden } .stack i { display:grid; place-items:center; height:100%; color:#fff; font:600 12px/1 var(--sans); font-style:normal }
.c1 { background:#a2412e } .c2 { background:#d39a8a; color:var(--ink) !important } .c3 { background:var(--green) } .c4 { background:#9ccbb4; color:var(--ink) !important } .c5 { background:#d9d4c9; color:var(--ink) !important }
.legend { display:flex; flex-wrap:wrap; gap:6px 18px; margin-top:14px; font-size:13.5px; color:var(--body) } .legend li { display:flex; align-items:center; gap:6px } .legend i { width:11px; height:11px; border-radius:3px }
.csrc { margin-top:14px; color:var(--muted); font-size:13px }

/* Tables */
.tbl-wrap { margin-top:28px; overflow-x:auto; border:1px solid var(--line); border-radius:var(--r-md); background:var(--card) }
.tbl-wrap:focus-visible { outline:2px solid var(--green); outline-offset:2px }
table { width:100%; border-collapse:collapse; font-size:15px; line-height:1.5 }
caption { padding:16px 18px 4px; text-align:left; font:600 16.5px/1.35 var(--head); color:var(--ink) }
thead th { padding:12px 16px; background:var(--green); color:#fff; font-weight:600; text-align:left; font-size:14px; white-space:nowrap }
caption + thead th { border-top:1px solid var(--line) }
tbody th, tbody td { padding:11px 16px; border-top:1px solid var(--line); text-align:left; vertical-align:top }
tbody th { font-weight:500; color:var(--ink) } tbody td { color:var(--body) }
tbody tr.total th, tbody tr.total td { background:var(--mint); color:var(--ink); font-weight:600 }
.tnote { margin-top:10px !important; color:var(--muted) !important; font-size:14px !important; line-height:1.55 !important }

/* Demo cards inside the general paper */
.demo-card { margin:28px 0 0; padding:18px 20px; background:var(--card); border:1px solid var(--line); border-radius:var(--r-md); box-shadow:0 18px 40px -30px rgba(13,92,69,.45) }
.dc-head { display:flex; justify-content:space-between; align-items:center; gap:12px; color:var(--muted); font-size:13px; font-weight:500; letter-spacing:.06em; text-transform:uppercase }
.dc-q { margin-top:14px; padding:12px 14px; border-radius:12px; background:var(--sand); font-weight:500 }
.dc-a p { margin-top:12px; color:#2f3633 }
.dc-src { padding-top:12px; border-top:1px dashed var(--line); color:var(--muted); font-size:13.5px; line-height:1.7 } .dc-src b { color:var(--green); font-size:11.5px; letter-spacing:.08em; text-transform:uppercase; margin-right:6px }
.dchat .m { max-width:86%; margin-top:10px; padding:10px 13px; border-radius:14px 14px 14px 4px; background:var(--mint); font-size:15px }
.dchat .m.you { margin-left:auto; border-radius:14px 14px 4px 14px; background:var(--sand) }
.dc-enq { margin-top:12px; padding:12px 14px; border-radius:10px; background:var(--mint) } .dc-enq dt { color:var(--green); font-size:12px; font-weight:600; letter-spacing:.08em; text-transform:uppercase } .dc-enq dd { display:flex; gap:16px; margin:6px 0 0; font-size:14.5px } .dc-enq dd span { min-width:70px; color:var(--body) }

/* Readiness checklist */
.checklist { display:grid; margin-top:24px; border-top:1px solid var(--line) }
.checklist li { border-bottom:1px solid var(--line) }
.checklist label { display:flex; gap:14px; align-items:flex-start; padding:14px 4px; cursor:pointer }
.checklist input { flex:none; width:22px; height:22px; margin:2px 0 0; accent-color:var(--green) }
.checklist strong { display:block; font-weight:500 } .checklist small { display:block; margin-top:2px; color:var(--muted); font-size:14px }
.score { margin-top:14px !important; font-weight:600 !important; color:var(--green) !important }

/* Sources */
.sourcelist { display:grid; gap:12px; margin-top:20px; font-size:14.5px; line-height:1.6 }
.sourcelist li { display:grid; grid-template-columns:30px minmax(0,1fr); gap:6px; scroll-margin-top:110px }
.sourcelist li span { color:var(--green); font-weight:600 } .sourcelist p { color:var(--body) } .sourcelist a { color:var(--green); white-space:nowrap }
.sourcelist li:target { background:var(--mint); border-radius:8px }
.sources .dots { margin-top:14px; font-size:15px; color:var(--body) }
.more-papers { margin-top:28px; text-align:center; color:var(--body) } .more-papers a { color:var(--green); font-weight:500 }

@media (max-width:960px) {
  .paper-body { grid-template-columns:minmax(0,1fr) } .toc { position:static; padding:16px 18px; background:var(--card); border:1px solid var(--line); border-radius:var(--r-md) }
  .paper-hero-in { grid-template-columns:minmax(0,1fr) 180px; gap:28px }
}
@media (max-width:640px) {
  .paper-hero-in, .rcard { grid-template-columns:minmax(0,1fr) } .rcover { max-width:150px } .paper-hero .cover { display:none }
  .bars li { grid-template-columns:minmax(0,1fr) auto; } .bars li .bl { grid-column:1 / -1 } .bars li .bt { grid-column:1 / 2 }
  .stacked li { grid-template-columns:minmax(0,1fr) } .art-sec > p, .art-sec > .dots, .art-sec > .nums { font-size:17px }
  .chain li + li { margin-left:0 } .chain li + li::before { display:none }
}
@media print { .nav, .toc, .foot, .sec-end, .paper-hero .ctas { display:none } .paper-body { display:block } }