/* New Build London — blueprint blue / graphite / lime, grid paper */
:root {
  --blue: #2457c5;
  --blue-d: #173f97;
  --graph: #22262e;
  --lime: #b5e61d;
  --paper: #f7f8fa;
  --grid: rgba(36, 87, 197, .07);
  --line: #d9dee7;
  --muted: #5b6372;
  --head: "Archivo", "Arial Narrow", sans-serif;
  --body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0; font-family: var(--body); color: var(--graph); font-size: 1.04rem; line-height: 1.72;
  background-color: var(--paper);
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 28px 28px;
}
img { max-width: 100%; height: auto; }
a { color: var(--blue); text-underline-offset: 3px; }
a:hover { color: var(--blue-d); }
h1, h2, h3 { font-family: var(--head); line-height: 1.15; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; margin: .2rem 0 1rem; }
h2 { font-size: clamp(1.35rem, 3vw, 1.75rem); font-weight: 800; margin: 2.4rem 0 .7rem; padding-top: .9rem; border-top: 2px solid var(--graph); }
h3 { font-size: 1.12rem; font-weight: 700; margin: 1.5rem 0 .4rem; }
p, ul, ol { margin: 0 0 1rem; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 10px; top: 10px; background: #fff; padding: 8px; z-index: 9; }

/* frame: rail + main */
.frame { display: block; }
.rail { background: var(--graph); color: #d6dbe4; padding: 14px 16px; }
.rail-logo img { height: 36px; width: auto; display: block; }
.rail nav { margin-top: 10px; overflow-x: auto; }
.rail-h { display: none; }
.rail-nav { list-style: none; margin: 0; padding: 0; display: flex; gap: 14px; white-space: nowrap; }
.rail-nav a { color: #d6dbe4; text-decoration: none; font-size: .9rem; padding: 4px 0; display: inline-block; }
.rail-nav a[aria-current] { color: var(--lime); }
.rail-cta { display: none; }
@media (min-width: 1000px) {
  .frame { display: grid; grid-template-columns: 280px 1fr; min-height: 100vh; }
  .rail { position: sticky; top: 0; height: 100vh; overflow-y: auto; padding: 28px 24px; }
  .rail nav { overflow: visible; margin-top: 30px; }
  .rail-h { display: block; font-family: var(--head); text-transform: uppercase; letter-spacing: .12em; font-size: .75rem; color: #8a93a3; margin-bottom: 8px; }
  .rail-nav { display: block; counter-reset: r; white-space: normal; }
  .rail-nav li { counter-increment: r; }
  .rail-nav a { display: block; padding: 7px 0 7px 34px; position: relative; border-bottom: 1px solid rgba(255,255,255,.07); }
  .rail-nav a::before { content: counter(r, decimal-leading-zero); position: absolute; left: 0; color: #6f7a8c; font-family: var(--head); font-size: .8rem; top: 9px; }
  .rail-nav a:hover { color: #fff; }
  .rail-nav a[aria-current]::before { color: var(--lime); }
  .rail-cta { display: block; margin-top: 28px; background: var(--lime); color: var(--graph); font-weight: 600; text-decoration: none; padding: 14px 16px; border-radius: 4px; font-size: .92rem; line-height: 1.4; }
  .rail-cta:hover { background: #fff; color: var(--graph); }
}
.main-col { min-width: 0; }
main { width: min(820px, 100% - 32px); margin: 0 auto; padding: 8px 0 40px; }
@media (min-width: 1000px) { main { margin: 0 0 0 56px; } }

.crumbs { font-size: .85rem; color: var(--muted); padding-top: 22px; }
.crumbs a { color: var(--muted); }
.crumbs .sep { margin: 0 5px; }

.eyebrow { font-family: var(--head); text-transform: uppercase; letter-spacing: .14em; font-size: .78rem; color: var(--blue); margin: 26px 0 0; }
.dek { font-size: 1.15rem; color: #3d4452; }
.stamp { display: inline-block; font-size: .8rem; color: var(--muted); border: 1px dashed var(--muted); padding: 2px 8px; border-radius: 3px; margin-bottom: 1.2rem; }

.spec { background: #fff; border: 2px solid var(--graph); padding: 18px 22px; margin: 22px 0; box-shadow: 6px 6px 0 var(--blue); }
.spec h2, .spec h3 { margin-top: 0; border: 0; padding: 0; }
.spec ul { margin-bottom: 0; }
.flag { background: #fff; border-left: 6px solid var(--lime); padding: 14px 18px; margin: 20px 0; }
.flag.red { border-left-color: #e0442c; }
.flag p:last-child { margin: 0; }
.qa h3::before { content: "Q. "; color: var(--blue); }

.grid2 { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin: 18px 0; }
.cell { background: #fff; border: 1px solid var(--line); padding: 16px 18px; text-decoration: none; color: var(--graph); display: block; }
a.cell:hover { border-color: var(--blue); color: var(--graph); }
.cell b { font-family: var(--head); display: block; margin-bottom: .2rem; }
.cell span { color: var(--muted); font-size: .94rem; }

.tbl { overflow-x: auto; margin: 16px 0; }
table { width: 100%; border-collapse: collapse; background: #fff; font-size: .94rem; }
th, td { padding: 10px 12px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: var(--graph); color: #fff; font-family: var(--head); font-weight: 700; }
.todo { background: #fff3a8; padding: 0 4px; }

.btn { display: inline-block; background: var(--blue); color: #fff; text-decoration: none; padding: 12px 20px; font-weight: 600; border-radius: 4px; }
.btn:hover { background: var(--blue-d); color: #fff; }
.btn.alt { background: var(--graph); }

details.faq { background: #fff; border: 1px solid var(--line); margin: 10px 0; }
details.faq summary { cursor: pointer; padding: 14px 18px; font-weight: 600; list-style: none; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::before { content: "+"; display: inline-block; width: 22px; color: var(--blue); font-weight: 700; }
details.faq[open] summary::before { content: "−"; }
details.faq > div { padding: 0 18px 8px 40px; }

.agent { background: var(--graph); color: #dfe4ec; padding: 28px; margin: 40px 0 10px; position: relative; }
.agent::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 8px; background: var(--lime); }
.agent h2 { color: #fff; border: 0; padding: 0; margin: 0 0 .6rem; }
.agent .eyebrow { color: var(--lime); margin: 0 0 .3rem; }
.agent .btn { background: var(--lime); color: var(--graph); }
.agent .btn:hover { background: #fff; }

.foot { border-top: 2px solid var(--graph); margin: 30px 0 0; padding: 24px 16px 30px; font-size: .9rem; color: var(--muted); background: #fff; }
.foot p { width: min(820px, 100%); margin: 0 auto .7rem; }
@media (min-width: 1000px) { .foot { padding-left: 56px; } .foot p { margin-left: 0; } }
.copy { font-size: .82rem; }

.agent-line{display:block;font-size:.72rem;line-height:1.4;opacity:.85}