:root{
  --paper:#fcfcfa; --ink:#16201b; --soft:#fbfaf6; --card:#ffffff; --rule:#e4e7e0;
  --leaf:#16a34a; --leaf-deep:#0f7a37; --leaf-tint:#eaf6ee; --quill:#5d6b62;
  --gain:#15803d; --loss:#b3261e; --amber:#b8772a;
  --serif:'Fraunces','Bitter',Georgia,'Times New Roman',serif;
  --sans:'Inter',system-ui,-apple-system,Segoe UI,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.68;
  -webkit-font-smoothing:antialiased;font-size:17px}
.ftsd-shell{max-width:1000px;margin:0 auto;padding:0 22px}
a{color:var(--leaf-deep);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{font-family:var(--serif);line-height:1.18;letter-spacing:-.008em;font-weight:600}
h2{font-size:clamp(1.4rem,2.6vw,1.95rem);margin:0 0 .5em;color:#14241b}
h3{font-size:1.12rem;margin:1.5em 0 .35em;color:#15291d}
.ftsd-dim{color:var(--quill)}
.ftsd-band{padding:46px 0}
.ftsd-band + .ftsd-band{border-top:1px solid var(--rule)}
.ftsd-eyebrow{font-family:var(--sans);font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--leaf-deep);font-weight:700;margin-bottom:13px}
/* masthead */
.ftsd-top{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding:14px 22px;background:rgba(252,252,250,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--rule)}
.ftsd-brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:600;
  color:#14241b;font-size:1.04rem;letter-spacing:-.01em}
.ftsd-brand svg{width:26px;height:26px;flex:0 0 auto}
.ftsd-links{display:flex;gap:21px;list-style:none;margin:0;padding:0;font-size:.92rem;align-items:center}
.ftsd-links a{color:#3a463f;font-weight:500}
.ftsd-links a:hover{color:var(--leaf-deep);text-decoration:none}
.ftsd-go{background:var(--leaf);color:#fff!important;padding:8px 15px;border-radius:999px;
  font-weight:600;font-size:.86rem}
.ftsd-go:hover{background:var(--leaf-deep);text-decoration:none}
.ftsd-burger{display:none;background:none;border:0;cursor:pointer;width:30px;height:24px}
.ftsd-burger span{display:block;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}
.ftsd-drawer{display:none;flex-direction:column;gap:2px;padding:8px 22px 18px;
  border-bottom:1px solid var(--rule);background:var(--card)}
.ftsd-drawer a{color:var(--ink);padding:10px 0;border-bottom:1px solid var(--rule);font-size:.98rem}
.ftsd-drawer.open{display:flex}
/* hero */
.ftsd-hero{padding:62px 0 44px}
.ftsd-kick{font-family:var(--sans);font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--leaf-deep);font-weight:700}
.ftsd-hero h1{font-size:clamp(2.05rem,4.6vw,3.15rem);margin:.3em 0 .28em;color:#13231a;max-width:18ch}
.ftsd-standfirst{font-size:1.16rem;color:#37433c;max-width:60ch}
.ftsd-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px;font-size:.84rem}
.ftsd-pill{background:var(--leaf-tint);border:1px solid #d2e8d8;border-radius:999px;padding:7px 13px;color:#235e38}
.ftsd-pill b{color:var(--leaf-deep);font-weight:700}
.ftsd-cta{display:inline-block;margin-top:28px;background:var(--leaf);color:#fff;font-weight:600;
  padding:13px 24px;border-radius:999px;font-size:.96rem}
.ftsd-cta:hover{background:var(--leaf-deep);text-decoration:none}
.ftsd-cta.ghost{background:transparent;color:var(--leaf-deep);border:1.5px solid var(--leaf)}
.ftsd-cta.ghost:hover{background:var(--leaf-tint)}
/* blocks */
.ftsd-lede{font-size:1.08rem;color:#39453e}
.ftsd-slab{background:var(--card);border:1px solid var(--rule);border-radius:16px;padding:26px 28px;margin:20px 0;
  box-shadow:0 1px 0 rgba(20,40,30,.03)}
.ftsd-slab.feature{border-color:#cfe8d6;background:linear-gradient(180deg,#fbfffc,#ffffff)}
.ftsd-cols{display:grid;gap:17px}
@media(min-width:720px){.ftsd-c3{grid-template-columns:repeat(3,1fr)}.ftsd-c2{grid-template-columns:1fr 1fr}}
.ftsd-tile{background:var(--card);border:1px solid var(--rule);border-radius:13px;padding:20px 21px}
.ftsd-tile h3{margin-top:0}
.ftsd-stamp{font-family:var(--sans);font-size:.7rem;letter-spacing:.13em;text-transform:uppercase;
  color:var(--leaf-deep);font-weight:700}
ul.ftsd-checks{list-style:none;padding:0;margin:16px 0}
ul.ftsd-checks li{padding:10px 0 10px 30px;position:relative;border-bottom:1px solid var(--rule);color:#33403a}
ul.ftsd-checks li:before{content:"";position:absolute;left:4px;top:16px;width:11px;height:11px;border-radius:3px;
  background:var(--leaf-tint);border:1.5px solid var(--leaf)}
.ftsd-scroll{overflow-x:auto;margin:20px 0}
table{border-collapse:collapse;width:100%;font-size:.92rem;min-width:520px}
caption{caption-side:top;text-align:left;font-size:.8rem;color:var(--quill);margin-bottom:9px}
th,td{padding:12px 14px;border-bottom:1px solid var(--rule);text-align:left}
th{font-family:var(--sans);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--quill);font-weight:700}
tr:nth-child(even) td{background:var(--soft)}
td .ftsd-up{color:var(--gain);font-weight:600}
.ftsd-trail{font-size:.8rem;color:var(--quill);padding:18px 0 0}
.ftsd-trail a{color:var(--quill)}
.ftsd-trail .ftsd-div{opacity:.5;margin:0 6px}
.ftsd-verdict{font-size:1.12rem;color:#37433c;max-width:62ch;margin:.4em 0 0}
.ftsd-aside{font-size:.92rem;color:#41504a;background:var(--leaf-tint);border-left:3px solid var(--leaf);
  border-radius:0 10px 10px 0;padding:12px 18px;margin:18px 0}
.ftsd-prose h3{color:var(--leaf-deep)}
.ftsd-prose p{margin:.7em 0}
/* free-book bridge callout - the property's signature block */
.ftsd-bookcard{display:grid;gap:18px;align-items:center;background:linear-gradient(135deg,#0f7a37,#16a34a);
  color:#f3fbf5;border-radius:18px;padding:28px 30px;margin:24px 0}
@media(min-width:680px){.ftsd-bookcard{grid-template-columns:auto 1fr}}
.ftsd-bookcard .ftsd-spine{width:96px;height:128px;border-radius:6px 10px 10px 6px;background:#fbfaf2;
  box-shadow:0 8px 22px rgba(0,0,0,.22);position:relative;overflow:hidden}
.ftsd-bookcard .ftsd-spine:before{content:"";position:absolute;left:0;top:0;bottom:0;width:9px;background:#0d6e31}
.ftsd-bookcard .ftsd-spine em{position:absolute;inset:18px 12px 12px 20px;font-style:normal;font-family:var(--serif);
  font-size:.62rem;line-height:1.3;color:#1a2c20}
.ftsd-bookcard h2{color:#fff;margin-top:0}
.ftsd-bookcard p{color:#e4f4e8;margin:.5em 0}
.ftsd-bookcard .ftsd-cta{background:#fff;color:var(--leaf-deep);margin-top:14px}
.ftsd-bookcard .ftsd-cta:hover{background:#eafff0}
/* footer */
.ftsd-foot{border-top:1px solid var(--rule);background:var(--soft);margin-top:34px;padding:42px 0 30px}
.ftsd-foot .ftsd-grid{display:grid;gap:24px}
@media(min-width:720px){.ftsd-foot .ftsd-grid{grid-template-columns:2fr 1fr 1fr 1fr}}
.ftsd-foot a{color:#46544d;display:block;padding:3px 0}
.ftsd-foot a:hover{color:var(--leaf-deep)}
.ftsd-foot .ftsd-cap{color:#13231a;font-family:var(--sans);font-size:.76rem;letter-spacing:.1em;
  text-transform:uppercase;font-weight:700;margin-bottom:9px}
.ftsd-smallprint{color:#73807a;font-size:.82rem;margin-top:26px;border-top:1px solid var(--rule);padding-top:18px}
/* worked walkthrough block - numbered, framed, distinct from .ftsd-aside */
.ftsd-runthrough{background:#fbfdfb;border:1px solid #d8eadd;border-radius:14px;padding:22px 24px;margin:22px 0}
.ftsd-runthrough .ftsd-stamp{margin-bottom:12px;display:block}
.ftsd-runthrough ol{margin:0;padding-left:22px}
.ftsd-runthrough ol li{padding:7px 0;color:#33403a}
.ftsd-runthrough ol li b{color:#14241b}
code,.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.86em;
  background:#f0f4ef;border:1px solid var(--rule);border-radius:4px;padding:1px 6px;color:#1d3a26;word-break:break-word}
/* inline diagram frame (light) */
figure.ftsd-plate{margin:26px 0;background:var(--card);border:1px solid var(--rule);border-radius:16px;padding:20px 20px 12px}
figure.ftsd-plate svg{display:block;width:100%;height:auto;max-width:780px;margin:0 auto}
figure.ftsd-plate figcaption{font-size:.82rem;color:var(--quill);text-align:center;margin-top:12px}
.ftsd-plate .ftsd-p-box{fill:#ffffff;stroke:#cfe8d6;stroke-width:1.3}
.ftsd-plate .ftsd-p-edge{stroke:var(--leaf);stroke-width:1.8;fill:none}
.ftsd-plate .ftsd-p-h{font-family:'Inter',sans-serif;font-size:11.5px;fill:#14241b;font-weight:700}
.ftsd-plate .ftsd-p-t{font-family:'Inter',sans-serif;font-size:9.5px;fill:#5d6b62}
.ftsd-plate .ftsd-p-ax{font-family:'Inter',sans-serif;font-size:10px;fill:#5d6b62}
.ftsd-plate .ftsd-p-yes{fill:#15803d;font-family:'Inter',sans-serif;font-size:13px;font-weight:700}
.ftsd-plate .ftsd-p-no{fill:#b3261e;font-family:'Inter',sans-serif;font-size:13px;font-weight:700}
/* next-reads block at foot of a leaf page */
.ftsd-nextreads{margin:32px 0 0;border-top:1px solid var(--rule);padding-top:22px}
.ftsd-nextreads .ftsd-cap{font-family:var(--sans);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--leaf-deep);font-weight:700;margin-bottom:13px}
.ftsd-nextreads .ftsd-set{display:grid;gap:11px}
@media(min-width:620px){.ftsd-nextreads .ftsd-set{grid-template-columns:1fr 1fr}}
.ftsd-nextreads a.read{display:block;border:1px solid var(--rule);border-radius:11px;padding:14px 16px;
  background:var(--card);color:var(--ink)}
.ftsd-nextreads a.read:hover{border-color:#cfe8d6;background:#fbfffc;text-decoration:none}
.ftsd-nextreads a.read b{color:var(--leaf-deep);display:block;font-size:.96rem}
.ftsd-nextreads a.read span{color:var(--quill);font-size:.85rem}
.ftsd-gradecell{font-family:ui-monospace,Menlo,monospace;color:var(--leaf-deep);font-weight:600}
@media(max-width:719px){.ftsd-links{display:none}.ftsd-burger{display:block}}

/* a11y + responsive polish */
:focus-visible{outline:2px solid var(--leaf-deep);outline-offset:3px;border-radius:3px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.01ms !important;transition-duration:.01ms !important}}
@media(max-width:719px){table{min-width:0}th,td{padding:9px 11px}}