/* ============================================================
   The Soil First Initiative. One stylesheet for every page.
   Register: institutional. A serif for what is said, a quiet sans for
   everything that labels, navigates or measures. One deep green, one
   water blue, red only for failure data. No fills, no shadows, no radius.
   The soil core mark (topsoil, subsoil, water) is the only ornament.
   ============================================================ */
:root{
  --paper:#F4F3EE;--paper2:#EAE9E2;--white:#FFFFFF;
  --ink:#101A15;--ink2:#3F4A44;--mute:#79827B;
  --green:#1E4D38;--green2:#153A29;
  --water:#2F6273;--earth:#6B573D;
  --red:#9A3B2C;--amber:#9A6B2A;
  --deep:#0F1F18;--deep2:#15291F;--on:#EDEFE9;--on2:#B7C0B8;--sage:#A9C4B3;
  --rule:rgba(16,26,21,.16);--hair:rgba(16,26,21,.09);
  --fd:"Newsreader",Georgia,"Times New Roman",serif;
  --fs:"Inter",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --surface:var(--paper);--mkw:var(--water);
  /* names the older pages still refer to */
  --bg:var(--paper);--band:var(--paper2);--panel:var(--white);--panel2:var(--paper);
  --acc:var(--green);--acc-dark:var(--green2);--lime:var(--sage);--lime-br:var(--sage);--ochre:var(--amber);
  --dark:var(--deep);--dark2:var(--deep2);--onink:var(--on);--onink2:var(--on2);
  --hairline:var(--hair);--r:0;--r-s:0;--fc:var(--fs);--fb:var(--fs);
}
*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--paper);scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:var(--fs);font-weight:400;font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
::selection{background:rgba(30,77,56,.18)}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--green);outline-offset:3px}
img,svg{max-width:100%;display:block}
b,strong{font-weight:600}
.wrap{max-width:1320px;margin:0 auto;padding:0 clamp(20px,4vw,48px)}
section{scroll-margin-top:90px}

/* ---------- header ---------- */
header.site{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(244,243,238,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--rule)}
.nav{max-width:1320px;margin:0 auto;padding:0 clamp(20px,4vw,48px);height:76px;display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;font-family:var(--fs);font-weight:600;font-size:13px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink)}
.brand .mk,.fmk .mk{width:22px;height:22px;color:var(--ink);flex:none}
.brand img{height:44px;width:auto;flex:none}
.nav-links{display:flex;gap:30px;margin-left:auto;align-items:center}
.nav-links a{font-size:14.5px;font-weight:500;color:var(--ink2);transition:color .2s;white-space:nowrap}
.nav-links a:hover{color:var(--green)}
.nav-links a.here{color:var(--ink);box-shadow:inset 0 -1px 0 var(--ink)}
.nav-cta,.nav-links a.nav-cta{display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:500;color:var(--ink);border:1px solid var(--ink);padding:10px 16px;transition:background-color .2s,color .2s}
.nav-cta .ar{transition:transform .2s}
.nav-cta:hover,.nav-links a.nav-cta:hover{background:var(--ink);color:var(--paper)}
.nav-cta:hover .ar{transform:translateX(3px)}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--rule);color:var(--ink);width:44px;height:44px;font-size:20px;cursor:pointer}
@media (max-width:1080px){
  .nav-links{display:none;position:fixed;top:76px;left:0;right:0;background:var(--paper);flex-direction:column;gap:0;padding:8px 0 20px;border-bottom:1px solid var(--rule)}
  .nav-links.open{display:flex}
  .nav-links a{padding:13px clamp(20px,4vw,48px);width:100%}
  .nav-links a.here{box-shadow:none}
  .nav-cta,.nav-links a.nav-cta{margin:14px clamp(20px,4vw,48px) 0;width:auto;justify-content:center}
  .burger{display:block}
  .brand img{height:38px}
}

/* ---------- type ---------- */
.kicker{display:inline-flex;align-items:center;gap:12px;font-family:var(--fs);font-weight:600;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--green)}
.kicker::before{content:"";width:22px;height:1px;background:currentColor;flex:none}
h1{font-family:var(--fd);font-weight:400;font-size:clamp(44px,6.2vw,84px);line-height:1.02;letter-spacing:-.018em;margin-top:22px;max-width:16ch;font-feature-settings:"kern"}
h1 .hl{color:inherit}
h2{font-family:var(--fd);font-weight:400;font-size:clamp(32px,4vw,54px);line-height:1.06;letter-spacing:-.015em;margin-top:18px;max-width:22ch}
h3{font-family:var(--fs);font-weight:600;font-size:18px;letter-spacing:-.005em;line-height:1.3}
.lead{max-width:60ch;margin-top:22px;font-size:19px;color:var(--ink2);line-height:1.6}
.srcnote{font-size:13.5px;color:var(--mute);margin-top:28px;max-width:78ch;line-height:1.55}

/* ---------- hero ---------- */
.hero{position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);min-height:min(88vh,860px);padding-top:76px;border-bottom:1px solid var(--rule)}
.hero-text{align-self:center;padding:clamp(56px,8vh,96px) clamp(28px,4vw,64px) clamp(56px,8vh,96px) max(clamp(20px,4vw,48px),calc((100vw - 1320px)/2 + 48px))}
.hero .kicker{color:var(--ink2)}
.hero h1{color:var(--ink);text-shadow:none}
.hero-sub{max-width:52ch;margin-top:26px;font-size:19px;line-height:1.6;color:var(--ink2);text-shadow:none}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:38px}
.hero-media{position:relative;background:var(--deep);min-height:460px;overflow:hidden}
.hero-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-media .shade{display:none}
.hero-media figcaption{position:absolute;left:0;right:0;bottom:0;padding:14px clamp(20px,3vw,32px);font-size:12px;letter-spacing:.06em;color:rgba(255,255,255,.75);background:linear-gradient(to top,rgba(15,31,24,.55),rgba(15,31,24,0))}
.badge{display:none}
@media (max-width:900px){
  .hero{grid-template-columns:1fr;min-height:0}
  .hero-media{order:-1;min-height:0;height:52vw;max-height:420px}
  .hero-text{padding:40px clamp(20px,4vw,48px) 52px}
}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 24px;cursor:pointer;border:1px solid var(--green);font-family:var(--fs);font-weight:500;font-size:15px;letter-spacing:.01em;color:var(--paper);background:var(--green);transition:background-color .2s,border-color .2s,color .2s}
.btn::after{display:none}
.btn:hover{background:var(--green2);border-color:var(--green2)}
.btn.ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn .ar{font-family:var(--fs)}
section.blk.dark .btn.ghost{border-color:var(--on);color:var(--on)}
section.blk.dark .btn.ghost:hover{background:var(--on);color:var(--deep)}

/* ---------- credentials strip ---------- */
.cred{background:var(--paper);border-bottom:1px solid var(--rule)}
.cred .row{display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding-top:0;padding-bottom:0}
.cred .ci{font-size:14px;line-height:1.45;color:var(--mute);padding:22px 28px 22px 0;border-right:1px solid var(--rule);margin-right:28px}
.cred .ci:last-child{border-right:0;margin-right:0}
.cred .ci b{color:var(--ink);font-weight:500}
.cred .dot{display:none}
@media (max-width:900px){.cred .row{grid-template-columns:1fr 1fr}.cred .ci:nth-child(2){border-right:0}}
@media (max-width:560px){.cred .row{grid-template-columns:1fr}.cred .ci{border-right:0;margin-right:0;border-bottom:1px solid var(--hair);padding:14px 0}.cred .ci:last-child{border-bottom:0}}

/* ---------- sections ---------- */
section.blk{padding:clamp(80px,11vh,136px) 0;border-bottom:1px solid var(--rule);--surface:var(--paper)}
section.blk.alt{background:var(--paper2);--surface:var(--paper2)}
section.blk.dark{background:var(--deep);color:var(--on);border-bottom-color:rgba(255,255,255,.12);--surface:var(--deep);--mkw:#7FB0BF}
section.blk.dark h1,section.blk.dark h2{color:var(--on)}
section.blk.dark .lead{color:var(--on2)}
section.blk.dark .kicker{color:var(--sage)}
section.blk.dark .srcnote{color:rgba(255,255,255,.5)}
section.blk.dark a.inl,section.blk.dark .lead a{color:var(--sage);text-decoration:underline;text-underline-offset:3px}

/* figures: the number in the serif, the label beneath in the sans */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:52px;border-top:1px solid var(--ink)}
.stat{padding:26px 32px 30px 0;border-bottom:1px solid var(--hair)}
.stat .n{font-family:var(--fd);font-weight:400;font-size:clamp(46px,5.2vw,76px);line-height:1;letter-spacing:-.02em;color:var(--ink);font-variant-numeric:lining-nums}
.stat .l{color:var(--ink2);margin-top:12px;font-size:15px;line-height:1.5;max-width:30ch}

/* two column with a plate */
.two{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center;margin-top:8px}
.plate{background:var(--white);border:1px solid var(--rule);padding:28px}
.figcap{font-size:14px;color:var(--ink2);margin-top:14px;line-height:1.5}
.figcap b{color:var(--ink)}

/* steps, a real sequence */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:56px;border-top:1px solid var(--ink)}
.step{padding:26px 32px 8px 0;counter-increment:step}
.step .si{width:28px;height:28px;color:var(--ink);margin-bottom:22px;stroke-width:1.4}
.step h3{margin-bottom:10px}
.step p{color:var(--ink2);font-size:15.5px;line-height:1.55}

/* the lattice: cards drawn by their shared hairlines, not by fills or shadows */
.grid,.vgrid,.proofgrid,.acards{display:grid;gap:0;border-top:1px solid var(--rule);border-left:1px solid var(--rule);margin-top:52px}
.grid{grid-template-columns:repeat(3,1fr)}
.vgrid{grid-template-columns:repeat(4,1fr)}
.proofgrid{grid-template-columns:repeat(3,1fr)}
.acards{grid-template-columns:repeat(3,1fr)}
.ben,.vc,.pf,.ac{background:var(--surface);padding:32px 30px 34px;border:0;border-right:1px solid var(--rule);border-bottom:1px solid var(--rule);border-radius:0;box-shadow:none;transition:background-color .25s}
.ben:hover,.vc:hover,.ac:hover{transform:none;box-shadow:none;background:var(--white)}
section.blk.dark .ben:hover{background:var(--deep2)}
.ben .bi{width:26px;height:26px;color:var(--green);margin-bottom:22px}
.ben h3{margin-bottom:10px;color:var(--ink)}
section.blk.dark .ben h3{color:var(--on)}
.ben p{color:var(--ink2);font-size:15.5px;line-height:1.6}
section.blk.dark .ben p{color:var(--on2)}
.vc .vn{font-family:var(--fd);font-weight:400;font-size:clamp(34px,3.4vw,50px);line-height:1;letter-spacing:-.02em;color:var(--ink)}
.vc .vt{font-weight:600;color:var(--ink);margin:16px 0 8px;font-size:16px}
.vc p{color:var(--ink2);font-size:15px;line-height:1.55}
.pf{text-align:left;padding:34px 30px 36px}
.pf .n{font-family:var(--fd);font-weight:400;font-size:clamp(38px,4.4vw,60px);line-height:1;letter-spacing:-.02em;color:var(--ink);text-transform:none}
.pf .l{color:var(--ink2);margin-top:14px;font-size:15px;line-height:1.55}

/* gallery */
.shots{display:grid;grid-template-columns:1.2fr 1fr;gap:2px;background:var(--rule);border:1px solid var(--rule);margin-top:52px}
.shots figure{position:relative;overflow:hidden;background:var(--deep);margin:0}
.shots img{width:100%;height:100%;object-fit:cover;transition:transform .8s ease}
.shots figure:hover img{transform:scale(1.02)}
.shots figure.tall{grid-row:span 2}
.shots figcaption{position:absolute;left:0;right:0;bottom:0;padding:44px 22px 16px;color:#fff;font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;background:linear-gradient(to top,rgba(15,31,24,.8),rgba(15,31,24,0))}

/* partners, promise, banner */
.partners{display:flex;align-items:center;gap:36px;flex-wrap:wrap;margin-top:34px}
.partners img{height:44px;background:#fff;border:1px solid var(--rule);padding:7px 12px}
.partners .plab{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--mute);margin-bottom:9px}
.promise{background:var(--deep);padding:34px 32px 36px;box-shadow:none;border-radius:0;--mkw:#7FB0BF}
.promise .pt{font-family:var(--fd);font-weight:400;font-size:26px;letter-spacing:-.01em;color:var(--on);margin-bottom:12px}
.promise p{color:var(--on2);font-size:16.5px;line-height:1.65}
.banner{position:relative;min-height:420px;background-size:cover;background-position:center;border-bottom:1px solid var(--rule)}
.banner .shade{position:absolute;inset:0;background:linear-gradient(to right,rgba(15,31,24,.88),rgba(15,31,24,.35))}
.banner .inner{position:relative;padding:clamp(80px,12vh,128px) clamp(20px,4vw,48px)}
.banner h2{color:var(--on)}
.banner p{color:var(--on2);font-size:19px;max-width:50ch;margin-top:18px}
.banner .kicker{color:var(--sage)}

/* contact */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;margin-top:8px}
form{display:grid;gap:18px}
form .btn{justify-self:start}
label{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink2);font-weight:600}
input,textarea,select{font-family:var(--fs);font-size:16px;padding:14px 16px;border:1px solid var(--rule);background:var(--white);color:var(--ink);width:100%;margin-top:8px;transition:border-color .2s;border-radius:0;-webkit-appearance:none;appearance:none}
select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23101A15' stroke-width='1.6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:40px}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--ink)}
.cdetail p{margin:12px 0;color:var(--ink2)}
.cdetail b{color:var(--ink);text-transform:uppercase;letter-spacing:.1em;font-size:12px;font-weight:600;margin-right:10px}

/* footer */
footer{padding:64px 0 36px;background:var(--deep);color:var(--on2);--mkw:#7FB0BF}
footer .frow{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:flex-end}
footer .fmk{display:flex;align-items:center;gap:12px;color:var(--on);font-weight:600;text-transform:uppercase;letter-spacing:.18em;font-size:13px}
footer .fmk .mk{color:var(--on)}
footer .fmk img{height:60px;width:auto}
footer .fstrap{margin-top:16px;max-width:46ch;color:var(--on2);font-size:15.5px}
footer .flogos{display:flex;align-items:center;gap:18px}
footer .flogos img{height:38px;background:#fff;padding:6px 10px}
footer .fnav{display:flex;flex-wrap:wrap;gap:12px 28px;font-size:14.5px;padding-bottom:6px}
footer .fnav a{color:var(--on2);transition:color .2s}
footer .fnav a:hover{color:var(--on)}
footer small{display:block;margin-top:36px;color:rgba(255,255,255,.45);font-size:13px;border-top:1px solid rgba(255,255,255,.12);padding-top:20px;line-height:1.6}
footer small a{color:var(--on2);text-decoration:underline;text-underline-offset:3px}

/* the soil core, as a band: topsoil, subsoil, water */
.soilband{height:6px;background:linear-gradient(to bottom,var(--green) 0 34%,var(--earth) 34% 67%,var(--water) 67% 100%);opacity:1}

/* reveals */
.js .rv{opacity:0;transform:translateY(10px);transition:opacity .6s ease,transform .6s ease}
.js .rv.in{opacity:1;transform:none}
.scroll-progress{display:none}
@media (prefers-reduced-motion:reduce){.js .rv{opacity:1;transform:none;transition:none}.shots img{transition:none}}
@media (max-width:900px){
  .two,.contact{grid-template-columns:1fr;gap:40px}
  .steps,.vgrid{grid-template-columns:repeat(2,1fr)}
  .grid,.proofgrid,.stats,.acards{grid-template-columns:1fr}
  .stat{padding-right:0}
  .step{padding-right:20px}
  .shots{grid-template-columns:1fr}.shots figure.tall{grid-row:auto}
}
@media (max-width:560px){.vgrid,.steps{grid-template-columns:1fr}}


/* ---------- rivers: photo bands and the hero film ---------- */
.riverband{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--rule);border-bottom:1px solid var(--rule)}
.riverband figure{position:relative;margin:0;aspect-ratio:4/3;overflow:hidden;background:var(--deep)}
.riverband img{width:100%;height:100%;object-fit:cover;display:block}
.riverband figcaption,.wideband figcaption{position:absolute;left:0;right:0;bottom:0;padding:44px 22px 16px;color:#fff;font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;background:linear-gradient(to top,rgba(15,31,24,.8),rgba(15,31,24,0))}
@media (max-width:900px){.riverband{grid-template-columns:1fr}.riverband figure{aspect-ratio:16/10}}
.wideband{position:relative;margin:0;height:clamp(320px,52vh,600px);overflow:hidden;background:var(--deep);border-bottom:1px solid var(--rule)}
.wideband img{width:100%;height:100%;object-fit:cover;display:block}
.wideband figcaption{padding-left:clamp(20px,4vw,48px);padding-right:clamp(20px,4vw,48px)}
.hero-media video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
@media (max-width:900px),(prefers-reduced-motion:reduce){.hero-media video{display:none}}

/* ---------- the two fields, stage by stage (eight boxes down the page) ---------- */
.stages{list-style:none;margin:56px 0 0;padding:0;display:grid;gap:20px}
.stage{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:0;background:var(--white);border:1px solid var(--rule)}
.stfig{margin:0;padding:0;background:var(--white);border-right:1px solid var(--rule);display:flex;align-items:center}
.stfig svg{display:block;width:100%;height:auto}
.sttext{padding:clamp(24px,3vw,44px) clamp(22px,3vw,48px) clamp(28px,3vw,48px);display:flex;flex-direction:column;justify-content:center}
.stn{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--green);font-weight:600}
.sttext h3{font-family:var(--fd);font-weight:400;font-size:clamp(24px,2.5vw,34px);line-height:1.15;letter-spacing:-.01em;margin-top:14px;max-width:20ch;color:var(--ink)}
.sttext p{color:var(--ink2);font-size:16.5px;line-height:1.6;margin-top:14px;max-width:46ch}
@media (max-width:860px){
  .stage{grid-template-columns:1fr}
  .stfig{border-right:0;border-bottom:1px solid var(--rule)}
  .sttext{padding:22px 22px 26px}
  .sttext h3{font-size:24px}
  .sttext p{font-size:15.5px}
}

/* ---------- evidence page ---------- */
.figband{background:var(--deep2);color:var(--on);padding:clamp(40px,6vh,64px) 0;border-bottom:1px solid rgba(255,255,255,.12)}
.figgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.fg{border-left:1px solid rgba(255,255,255,.18);padding:4px 28px 4px 22px;display:flex;flex-direction:column}
.fg:first-child{border-left:0;padding-left:0}
.fg .n{font-family:var(--fd);font-weight:400;font-size:clamp(40px,4.6vw,66px);line-height:1;letter-spacing:-.02em;color:var(--on)}
.fg .l{margin-top:12px;font-size:15px;line-height:1.5;color:var(--on2)}
.fg .s{margin-top:auto;padding-top:16px;font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.45)}
@media(max-width:900px){.figgrid{grid-template-columns:repeat(2,1fr);row-gap:28px}.fg:nth-child(3){border-left:0;padding-left:0}}
@media(max-width:560px){.figgrid{grid-template-columns:1fr}.fg{border-left:0;padding-left:0}}

/* data tables */
.dt{width:100%;border-collapse:collapse;margin-top:44px;font-size:15.5px}
.dt th{text-align:left;font-weight:600;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--mute);padding:0 14px 12px 0;border-bottom:1px solid var(--ink)}
.dark .dt th{color:rgba(255,255,255,.5);border-bottom-color:rgba(255,255,255,.5)}
.dt td{padding:16px 14px 16px 0;border-bottom:1px solid var(--hair);vertical-align:top;line-height:1.5;color:var(--ink2)}
.dark .dt td{border-bottom-color:rgba(255,255,255,.12);color:var(--on2)}
.dt td.fig{font-family:var(--fd);font-weight:400;font-size:26px;letter-spacing:-.01em;white-space:nowrap;color:var(--ink);width:1%;padding-right:28px;line-height:1.1}
.dark .dt td.fig{color:var(--on)}
.dt td.fig.warn{color:var(--amber)}
.dt td.fig.ok{color:var(--green)}
.dark .dt td.fig.ok{color:var(--sage)}
.dt td.fig.bad{color:var(--red)}
.dark .dt td.fig.bad{color:#D98977}
.dt.oc th:first-child,.dt.oc td:first-child{width:30%}
.dt.oc td.fig{width:auto}
.dt.oc td:nth-child(2){min-width:240px}
.dt td b{font-weight:600;color:var(--ink)}
.dark .dt td b{color:var(--on)}
.dt td.src{font-size:12.5px;color:var(--mute);white-space:nowrap;text-align:right}
.dark .dt td.src{color:rgba(255,255,255,.45)}
@media(max-width:760px){.dt td.src,.dt th:last-child{display:none}.dt td.fig{font-size:21px;padding-right:14px}}

/* bars */
.bars{margin-top:44px}
.barw{margin-bottom:22px}
.barw .bl{display:flex;justify-content:space-between;gap:16px;font-size:15px;margin-bottom:8px;color:var(--ink2)}
.barw .bl b{font-family:var(--fd);font-size:20px;color:var(--ink);font-weight:400}
.barw .tr{height:10px;background:rgba(16,26,21,.08);overflow:hidden}
.barw .fl{height:100%;background:var(--amber)}
.barw .fl.good{background:var(--green)}
.barw .fl.bad{background:var(--red)}

/* claim and answer */
.pair{display:grid;grid-template-columns:1fr 1fr;gap:1px;margin-top:28px;background:var(--rule);border:1px solid var(--rule)}
.dark .pair{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.16)}
.pc{padding:28px 28px 30px;background:var(--surface)}
.pc.ans{background:var(--white)}
.dark .pc.ans{background:var(--deep2)}
.pc .tag{font-weight:600;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:14px;color:var(--mute)}
.dark .pc .tag{color:rgba(255,255,255,.5)}
.pc.ans .tag{color:var(--green)}
.dark .pc.ans .tag{color:var(--sage)}
.pc p{font-size:16.5px;line-height:1.6;color:var(--ink2)}
.dark .pc p{color:var(--on2)}
.pc .who{margin-top:16px;font-size:13px;letter-spacing:.04em;color:var(--mute)}
.dark .pc .who{color:rgba(255,255,255,.45)}
@media(max-width:820px){.pair{grid-template-columns:1fr}}

/* quote */
.qt{margin-top:48px;padding:6px 0 6px 32px;border-left:2px solid var(--green);background:transparent;box-shadow:none;border-radius:0}
.dark .qt{border-left-color:var(--sage);background:transparent}
.qt p{font-family:var(--fd);font-weight:400;font-style:italic;font-size:clamp(23px,2.7vw,34px);line-height:1.3;letter-spacing:-.01em;color:var(--ink)}
.dark .qt p{color:var(--on)}
.qt cite{display:block;margin-top:18px;font-style:normal;font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--mute);font-family:var(--fs)}
.dark .qt cite{color:rgba(255,255,255,.5)}

/* sources */
.srcwrap{background:var(--paper2)}
.reflist{columns:2;column-gap:56px;margin-top:36px}
@media(max-width:820px){.reflist{columns:1}}
.reflist div{break-inside:avoid;margin-bottom:16px;font-size:14.5px;line-height:1.55;padding-left:36px;position:relative;color:var(--ink2)}
.reflist div b{position:absolute;left:0;top:1px;font-weight:600;font-size:13px;color:var(--green)}
.reflist a{word-break:break-word;color:var(--green);border-bottom:1px solid rgba(30,77,56,.3)}
.reflist a:hover{border-bottom-color:var(--green)}
sup.r{font-family:var(--fs);font-weight:600;font-size:11px;color:var(--green);vertical-align:super;margin-left:2px;line-height:0}
.dark sup.r{color:var(--sage)}
.dt td.src sup.r{color:inherit}
a sup.r:hover{text-decoration:underline}

/* ---------- articles ---------- */
.artwrap{max-width:1180px;margin:0 auto;padding:0 clamp(18px,4vw,44px)}
.artgrid{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:64px;align-items:start}
@media(max-width:1000px){.artgrid{grid-template-columns:1fr;gap:0}.artside{display:none}}
.artside{position:sticky;top:100px;font-size:14.5px}
.artside .lab,.artrefs .lab{font-weight:600;font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--mute);padding-bottom:10px;border-bottom:1px solid var(--rule);margin-bottom:14px}
.artside a{display:block;padding:7px 0;color:var(--ink2);line-height:1.4}
.artside a:hover{color:var(--green)}
.artbody{max-width:68ch}
.artbody h2{font-size:clamp(26px,3vw,36px);margin-top:60px;margin-bottom:6px}
.artbody h3{font-size:19px;margin-top:36px;margin-bottom:8px}
.artbody p{margin-top:16px;font-size:17.5px;line-height:1.7;color:var(--ink2)}
.artbody p.big{font-family:var(--fd);font-size:24px;line-height:1.4;color:var(--ink);letter-spacing:-.01em}
.artbody ul{margin:18px 0 0 22px}
.artbody li{margin-bottom:11px;font-size:17.5px;line-height:1.6;color:var(--ink2)}
.artbody strong{color:var(--ink);font-weight:600}
.artbody a{color:var(--green);text-decoration:underline;text-underline-offset:3px}
a:has(> sup.r){text-decoration:none}
.artbody .dt{margin:28px 0 32px}
.artbody .qt{margin:32px 0}
.artmeta{font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--mute);margin-top:28px;padding-top:16px;border-top:1px solid var(--rule)}
.standfirst{font-family:var(--fd);font-size:23px;line-height:1.45;color:var(--ink2);margin-top:22px;max-width:60ch;letter-spacing:-.005em}
/* timeline */
.tl{margin-top:40px;border-left:1px solid var(--rule)}
.tl .ev{position:relative;padding:0 0 28px 32px}
.tl .ev::before{content:"";position:absolute;left:-5px;top:9px;width:9px;height:9px;border-radius:50%;background:var(--amber)}
.tl .ev.fail::before{background:var(--red)}
.tl .ev.ok::before{background:var(--green)}
.tl .yr{font-family:var(--fd);font-size:22px;color:var(--ink);line-height:1}
.tl .ti{font-weight:600;color:var(--ink);margin-top:6px;font-size:16.5px}
.tl .tx{color:var(--ink2);font-size:15.5px;line-height:1.55;margin-top:5px}
/* callout */
.call{margin-top:36px;padding:26px 28px;background:var(--white);border:1px solid var(--rule);border-left:2px solid var(--green)}
.call .cl{font-weight:600;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--green);margin-bottom:10px}
.call p{margin-top:0;font-size:16.5px}
.call.warn{border-left-color:var(--amber)}
.call.warn .cl{color:var(--amber)}
/* article cards on the hub */
.ac{display:block;padding:30px 28px 32px}
.ac .k{font-weight:600;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--green);margin-bottom:14px}
.ac h3{font-family:var(--fd);font-weight:400;font-size:24px;line-height:1.2;margin-bottom:12px;color:var(--ink);letter-spacing:-.01em}
.ac p{font-size:15.5px;line-height:1.55;color:var(--ink2)}
.ac .go{margin-top:18px;font-size:14px;color:var(--ink);text-decoration:underline;text-underline-offset:3px}
/* sources on the article */
.artrefs{margin-top:64px;padding-top:28px;border-top:1px solid var(--ink)}
.artrefs .lab{border-bottom:0;padding-bottom:0;margin-bottom:18px}
.artrefs div{margin-bottom:13px;font-size:14.5px;line-height:1.5;padding-left:32px;position:relative;color:var(--ink2)}
.artrefs div b{position:absolute;left:0;top:0;font-weight:600;font-size:13px;color:var(--green)}
.artrefs a{color:var(--green);border-bottom:1px solid rgba(30,77,56,.3);word-break:break-word;font-size:13.5px;text-decoration:none}
.artrefs a:hover{border-bottom-color:var(--green)}

/* ---------- section strip ---------- */
.secstrip{position:sticky;top:76px;z-index:40;background:var(--paper);border-bottom:1px solid var(--rule)}
.secstrip .in{max-width:1320px;margin:0 auto;padding:0 clamp(20px,4vw,48px);display:flex;gap:0;overflow-x:auto;scrollbar-width:none}
.secstrip .in::-webkit-scrollbar{display:none}
.secstrip a{flex:none;padding:14px 18px 14px 0;margin-right:18px;font-size:12.5px;font-weight:500;letter-spacing:.04em;color:var(--mute);white-space:nowrap;border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.secstrip a:hover{color:var(--ink)}
.secstrip a.on{color:var(--ink);border-bottom-color:var(--ink)}
@media(max-width:700px){.secstrip a{padding:12px 12px 12px 0;margin-right:10px;font-size:12px}.secstrip::after{content:"";position:absolute;top:0;right:0;bottom:1px;width:44px;background:linear-gradient(to right,rgba(244,243,238,0),var(--paper));pointer-events:none}}