/* Green Submissions — article pages. Shares the design system of the landing page. */
:root{
  --bg:#ffffff; --surface:#f3f6f2; --surface-2:#eef2ec; --ink:#15201a; --slate:#586158;
  --green:#1f4c31; --green-2:#2c6a43; --green-ink:#eaf1e9; --line:#e0e5df; --line-2:#cdd5cb;
  --gold:#8a6d34; --pill:#e7efe6; --shadow:0 1px 2px rgba(21,32,26,.05),0 18px 40px -24px rgba(21,32,26,.28);
  --serif:'IBM Plex Serif',Georgia,'Times New Roman',serif;
  --sans:'IBM Plex Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,'SF Mono',Menlo,Consolas,monospace;
  --wrap:1140px; --col:680px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:clip}
a{color:var(--green)}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.15;letter-spacing:-.01em;margin:0}
p{margin:0}
img{max-width:100%;height:auto}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 clamp(20px,5vw,44px)}
.eyebrow{font-family:var(--mono);font-size:.72rem;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:var(--green-2)}
:focus-visible{outline:2px solid var(--green-2);outline-offset:3px;border-radius:2px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5em;font-weight:600;font-size:.98rem;text-decoration:none;
  padding:.72em 1.25em;border-radius:7px;border:1px solid transparent;cursor:pointer;transition:background .16s,border-color .16s,color .16s}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-2)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--green-2);color:var(--green)}

/* header */
.site-head{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line)}
.site-head .wrap{display:flex;align-items:center;gap:1.5rem;height:66px}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:600;font-size:1.02rem;color:var(--ink);letter-spacing:-.01em;text-decoration:none}
.brand .mark{width:30px;height:30px;flex:none;border-radius:7px;background:var(--green);display:grid;place-items:center}
.brand .mark svg{width:17px;height:17px}
.nav{margin-left:auto;display:flex;align-items:center;gap:1.6rem}
.nav a.navlink{font-size:.92rem;font-weight:500;color:var(--slate);text-decoration:none}
.nav a.navlink:hover{color:var(--ink)}

/* article head */
.art-head{border-bottom:1px solid var(--line);
  background:radial-gradient(120% 120% at 100% -10%,rgba(44,106,67,.06),transparent 60%)}
.art-head .wrap{padding-top:clamp(2.6rem,5vw,4rem);padding-bottom:clamp(2rem,4vw,3rem);max-width:calc(var(--col) + 8vw)}
.crumbs{font-size:.85rem;color:var(--slate);margin-bottom:1.4rem}
.crumbs a{color:var(--slate);text-decoration:none}
.crumbs a:hover{color:var(--green)}
.art-head h1{font-size:clamp(2rem,4vw,3rem);margin:.9rem 0 0}
.standfirst{color:var(--slate);font-size:1.16rem;line-height:1.6;margin-top:1.2rem}
.byline{margin-top:1.8rem;display:flex;flex-wrap:wrap;gap:.4rem 1.2rem;font-family:var(--mono);font-size:.74rem;
  letter-spacing:.04em;color:var(--slate)}

/* article body */
.art{padding:clamp(2.6rem,5vw,4rem) 0 clamp(3rem,6vw,5rem)}
.art .wrap{max-width:calc(var(--col) + 8vw)}
.art .col{max-width:var(--col)}
.art .col > * + *{margin-top:1.35rem}
.art p{font-size:1.06rem;line-height:1.72}
.art h2{font-size:1.62rem;margin-top:3rem}
.art h3{font-size:1.2rem;font-family:var(--sans);font-weight:600;letter-spacing:0;margin-top:2.2rem}
.art ul,.art ol{padding-left:1.15rem;color:var(--ink)}
.art li{margin:.55rem 0;font-size:1.04rem;line-height:1.66}
.art li::marker{color:var(--green-2)}
.art strong{font-weight:600}
.art a{text-decoration:underline;text-underline-offset:2px;text-decoration-color:var(--line-2)}
.art a:hover{text-decoration-color:var(--green)}

/* pull line — the blunt bit. also used on blockquote, so margins must be reset. */
.pull{border-left:3px solid var(--green);padding:.2rem 0 .2rem 1.3rem;margin:2.4rem 0;
  font-family:var(--serif);font-size:1.42rem;line-height:1.32;color:var(--ink);letter-spacing:-.01em}
blockquote.pull{font-style:normal}

/* inline code */
code{font-family:var(--mono);font-size:.88em;background:var(--surface-2);border:1px solid var(--line);
  border-radius:4px;padding:.1em .35em;word-break:break-word}
.sources code{background:#fff}

.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* figure / evidence */
.fig{margin:2.4rem 0}
.fig img{width:100%;border:1px solid var(--line-2);border-radius:9px;box-shadow:var(--shadow);display:block}
.fig figcaption{margin-top:.7rem;font-size:.86rem;color:var(--slate);line-height:1.5}
.fig figcaption a{color:var(--slate)}

/* numbers table */
.tbl{margin:2.2rem 0;border:1px solid var(--line);border-radius:9px;overflow-x:auto}
.tbl table{width:100%;border-collapse:collapse;font-size:.95rem;min-width:460px}
.tbl th,.tbl td{padding:.8rem 1rem;text-align:left;border-bottom:1px solid var(--line)}
.tbl thead th{background:var(--surface);font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--slate);font-weight:500}
.tbl tbody tr:last-child td{border-bottom:none}
.tbl td.num{font-family:var(--mono);font-size:.9rem;white-space:nowrap}
.tbl tr.total td{background:var(--surface-2);font-weight:600}

/* sources box */
.sources{margin-top:3.4rem;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:1.6rem 1.7rem}
.sources h2{font-size:1.1rem;font-family:var(--sans);font-weight:600;letter-spacing:0;margin:0 0 .5rem}
.sources p{font-size:.9rem;color:var(--slate);line-height:1.6}
.sources ul{margin:.9rem 0 0;padding-left:1.1rem}
.sources li{font-size:.9rem;color:var(--slate);margin:.45rem 0;line-height:1.55}
.sources a{color:var(--green)}

/* next steps / cta */
.cta-band{background:var(--green);color:#fff;padding:clamp(2.6rem,5vw,3.6rem) 0;margin-top:3.4rem}
.cta-band .wrap{max-width:calc(var(--col) + 8vw)}
.cta-band h2{color:#fff;font-size:1.7rem}
.cta-band p{color:#c9dccd;margin-top:.9rem;max-width:34em}
.cta-band .btns{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.8rem}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.35)}
.cta-band .btn-ghost:hover{border-color:#fff;color:#fff}

/* read next */
.next{padding:clamp(2.6rem,5vw,4rem) 0;border-top:1px solid var(--line);background:var(--surface)}
.next h2{font-size:1.3rem;margin-bottom:1.6rem}
.next-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
.next-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:1.3rem 1.4rem;text-decoration:none;display:block}
.next-card:hover{border-color:var(--green-2)}
.next-card h3{font-size:1.06rem;font-family:var(--sans);font-weight:600;letter-spacing:0;color:var(--ink)}
.next-card p{margin-top:.4rem;font-size:.9rem;color:var(--slate);line-height:1.55}

/* hub */
.hub-list{display:grid;gap:1.2rem;margin-top:2.6rem}
.hub-item{background:#fff;border:1px solid var(--line);border-radius:11px;padding:1.6rem 1.7rem;
  text-decoration:none;display:block;box-shadow:var(--shadow)}
.hub-item:hover{border-color:var(--green-2)}
.hub-item h2{font-size:1.34rem;color:var(--ink)}
.hub-item p{margin-top:.6rem;color:var(--slate);font-size:1rem;line-height:1.6}
.hub-item .meta{margin-top:.9rem;font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;color:var(--green-2);text-transform:uppercase}

/* footer */
.site-foot{background:#12231a;color:#c9d6cc;padding:clamp(2.8rem,5vw,4rem) 0 2rem;margin-top:0}
.site-foot .brand{color:#fff}
.foot-top{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:2rem}
.foot-blurb{margin-top:1rem;font-size:.9rem;color:#8fa596;max-width:32em;line-height:1.6}
.foot-col h4{font-family:var(--sans);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:#7d9384;
  margin:0 0 .9rem;font-weight:600}
.foot-col a{display:block;color:#c9d6cc;text-decoration:none;font-size:.92rem;margin:.45rem 0}
.foot-col a:hover{color:#fff}
.foot-bottom{margin-top:2.4rem;padding-top:1.4rem;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.82rem;color:#7d9384}
.foot-bottom a{color:#b9c8bd}

@media (max-width:900px){
  .foot-top{grid-template-columns:1fr 1fr}
  .next-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  .nav a.navlink{display:none}
  .foot-top{grid-template-columns:1fr}
  .pull{font-size:1.24rem}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}