:root {
  --c-blau:      #0C005E;
  --c-rot:       #6D001A;
  --c-beige:     #FBF9F7;
  --c-hellblau:  #D7E3F2;
  --c-blau-tief: #070038;
  --c-rot-tief:  #48000F;

  --color-navy: var(--c-blau);
  --color-navy-dark: var(--c-blau-tief);
  --color-bordeaux: var(--c-rot);
  --color-bordeaux-dark: var(--c-rot-tief);

  --w-accent: var(--c-rot);   --w-accent-rgb: 109,0,26;   --w-on-accent: var(--c-beige);
  --w-ink:    var(--c-blau);  --w-ink-rgb: 12,0,94;
  --w-border: rgba(12,0,94,.40);
  --w-paper:  var(--c-beige);
  --w-surface: rgba(215,227,242,.50);
  --w-text:   rgba(12,0,94,.78);
  --w-muted:  rgba(12,0,94,.62);
  --w-chip:   rgba(215,227,242,.75);

  --nav-h: 5rem;

  --font-body:  "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-label: "Aldrich", "Inter", sans-serif;
}

html, body { margin: 0; padding: 0; }
.warm-site {
  font-family: var(--font-body);
  background: var(--w-paper);
  color: var(--w-ink);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.warm-site *, .warm-site *::before, .warm-site *::after { box-sizing: border-box; margin: 0; padding: 0; }
.warm-site a { text-decoration: none; color: inherit; }
.warm-site img { display: block; max-width: 100%; }
.w-container { max-width: 80rem; margin: 0 auto; padding: 0 2.5rem; width: 100%; }

.rt-skip {
  position: absolute; left: -9999px; top: 0; z-index: 300;
  background: var(--w-ink); color: var(--c-beige);
  padding: .75rem 1.25rem; font-size: .75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .1em;
}
.rt-skip:focus { left: 1rem; top: 1rem; }
.warm-site .rt-skip, .warm-site .rt-skip:focus { color: var(--c-beige); }
.warm-site a:focus-visible, .warm-site button:focus-visible {
  outline: 2px solid var(--w-accent); outline-offset: 3px;
}

.warm-nav {
  position: sticky; top: 0; z-index: 200;
  background: var(--w-paper); border-bottom: 1px solid var(--w-border);
}
.warm-nav-inner {
  max-width: 80rem; margin: 0 auto; padding: 0 2.5rem;
  height: var(--nav-h); display: flex; align-items: center; justify-content: space-between;
}
.warm-nav-logo { display: flex; align-items: center; gap: 0.75rem; }
.warm-nav-logo-img { height: 2.5rem; width: auto; flex-shrink: 0; }
.warm-nav-links { display: flex; align-items: center; gap: 2rem; }
.warm-nav-link { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 600; color: var(--w-ink); transition: color .2s; }
.warm-nav-link:hover { color: var(--w-accent); }
.warm-site .warm-nav-btn {
  padding: 0.75rem 1.75rem; border-radius: 2px; color: var(--c-beige);
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 700;
  transition: background .2s, box-shadow .2s, transform .2s;
}
.warm-site .warm-nav-btn:hover { transform: translateY(-1px); }
.warm-site .warm-nav-btn--navy { background: var(--color-navy); }
.warm-site .warm-nav-btn--navy:hover { background: var(--color-navy-dark); box-shadow: 0 8px 18px rgba(12,0,94,.32); }
.warm-site .warm-nav-btn--red { background: var(--color-bordeaux); }
.warm-site .warm-nav-btn--red:hover { background: var(--color-bordeaux-dark); box-shadow: 0 8px 18px rgba(var(--w-accent-rgb),.34); }
@media (max-width: 1024px) { .warm-nav-links { gap: 1.25rem; } .warm-site .warm-nav-btn { padding: 0.7rem 1.15rem; } }
@media (max-width: 768px) { .warm-nav-links { display: none; } }

.rt-hero { padding: 5rem 0 3.5rem; border-bottom: 1px solid var(--w-border); }
.rt-back {
  display: inline-block; margin-bottom: 2rem;
  font-size: .75rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .1em; color: var(--w-muted); transition: color .2s;
}
.rt-back:hover { color: var(--w-accent); }
.warm-section-kicker {
  display: block; font-family: var(--font-label);
  font-size: .625rem; text-transform: uppercase; letter-spacing: .2em;
  font-weight: 400; color: var(--w-accent); margin-bottom: 1rem;
}
.rt-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 300;
  color: var(--w-ink); letter-spacing: -.02em; line-height: 1.15;
}
.rt-hero h1 em { font-style: italic; color: var(--w-accent); }
.rt-hero-desc { margin-top: 1.25rem; max-width: 42rem; font-size: 1rem; line-height: 1.7; color: var(--w-text); }
.rt-stand { margin-top: 1.5rem; font-size: .6875rem; text-transform: uppercase; letter-spacing: .15em; font-weight: 700; color: var(--w-muted); }

.rt-toc { margin: 3rem 0 2.5rem; padding: 1.5rem 0 .5rem; border-top: 1px solid var(--w-border); }
.rt-toc h2 { font-family: var(--font-label); font-size: .625rem; text-transform: uppercase; letter-spacing: .2em; font-weight: 400; color: var(--w-muted); margin-bottom: 1.25rem; }
.rt-toc ol { list-style: none; counter-reset: toc; display: grid; grid-template-columns: repeat(2, 1fr); gap: .75rem 2rem; }
@media (max-width: 700px) { .rt-toc ol { grid-template-columns: 1fr; } }
.rt-toc li { counter-increment: toc; font-size: .875rem; line-height: 1.5; }
.rt-toc li::before {
  content: counter(toc, decimal-leading-zero) " ";
  font-family: var(--font-body);
  font-size: .6875rem; font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--w-accent); margin-right: .5rem;
}
.rt-toc a { color: var(--w-text); border-bottom: 1px solid transparent; transition: color .2s, border-color .2s; }
.rt-toc a:hover { color: var(--w-accent); border-bottom-color: var(--w-accent); }

.rt-body { padding: 4rem 0 6rem; }
.rt-prose { max-width: 78ch; }
.rt-prose section + section { margin-top: 3.5rem; }
.rt-prose h2 {
  font-size: 1.375rem; font-weight: 600; color: var(--w-ink);
  letter-spacing: -.01em; margin-bottom: 1.25rem;
  padding-top: 1.25rem; border-top: 1px solid var(--w-border);
}
.rt-prose h2 .rt-num {
  font-family: var(--font-body);
  font-size: .8125rem; font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--w-accent); margin-right: .625rem; vertical-align: .12em;
}
.rt-prose h3 { font-size: 1rem; font-weight: 700; color: var(--w-ink); margin: 2rem 0 .75rem; }
.rt-prose p { font-size: .9375rem; line-height: 1.75; color: var(--w-text); margin-bottom: 1rem; }
.rt-prose ul, .rt-prose ol { margin: 0 0 1.25rem 1.25rem; }
.rt-prose li { font-size: .9375rem; line-height: 1.75; color: var(--w-text); margin-bottom: .5rem; }
.rt-prose strong { font-weight: 600; color: var(--w-ink); }
.rt-prose em { font-style: italic; }
.rt-prose a:not(.rt-toc a) { color: var(--w-accent); border-bottom: 1px solid rgba(var(--w-accent-rgb), .35); transition: border-color .2s; }
.rt-prose a:hover { border-bottom-color: var(--w-accent); }
.rt-prose address { font-style: normal; }

.rt-dl { display: grid; grid-template-columns: 14rem 1fr; gap: .875rem 2rem; margin-bottom: 1.5rem; }
@media (max-width: 640px) { .rt-dl { grid-template-columns: 1fr; gap: .25rem 0; } .rt-dl dd { margin-bottom: 1rem; } }
.rt-dl dt { font-family: var(--font-label); font-size: .6875rem; text-transform: uppercase; letter-spacing: .12em; color: var(--w-muted); padding-top: .2em; }
.rt-dl dd { font-size: .9375rem; line-height: 1.7; color: var(--w-text); }

.rt-note { padding: 1.25rem 0 0; border-top: 1px solid var(--w-border); margin: 2rem 0 1.75rem; }
.rt-note p:last-child { margin-bottom: 0; }
.rt-note-label { display: block; font-family: var(--font-label); font-size: .625rem; text-transform: uppercase; letter-spacing: .2em; color: var(--w-accent); margin-bottom: .75rem; }

.rt-todo {
  padding: 1.5rem 1.75rem; margin: 1.75rem 0;
  background: rgba(var(--w-accent-rgb), .06);
  border: 1px dashed var(--w-accent);
}
.rt-todo p:last-child { margin-bottom: 0; }
.rt-todo-label { display: block; font-family: var(--font-label); font-size: .625rem; text-transform: uppercase; letter-spacing: .2em; color: var(--w-accent); margin-bottom: .75rem; }
.rt-todo code { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: .875em; background: var(--w-chip); padding: .1em .4em; border-radius: 2px; }

.rt-table-wrap { overflow-x: auto; margin: 1.5rem 0; }
.rt-table { border-collapse: collapse; width: 100%; min-width: 34rem; }
.rt-table th, .rt-table td { text-align: left; padding: .875rem 1rem; border-bottom: 1px solid var(--w-border); font-size: .875rem; line-height: 1.6; vertical-align: top; }
.rt-table th { font-family: var(--font-label); font-size: .625rem; text-transform: uppercase; letter-spacing: .15em; font-weight: 400; color: var(--w-muted); }
.rt-table td { color: var(--w-text); }
.rt-table tr:last-child td { border-bottom: none; }

.warm-footer { background: var(--w-paper); border-top: 1px solid var(--w-border); padding: 5rem 2.5rem 3rem; }
.warm-footer-inner { max-width: 80rem; margin: 0 auto; }
.warm-footer-bottom { padding-top: 3rem; border-top: 1px solid var(--w-border); display: flex; flex-direction: column; gap: 1.5rem; align-items: center; }
@media (min-width: 768px) { .warm-footer-bottom { flex-direction: row; justify-content: space-between; } }
.warm-footer-copy { font-size: 0.625rem; text-transform: uppercase; font-weight: 700; color: var(--w-muted); letter-spacing: .2em; }
.warm-footer-links { display: flex; gap: 2rem; flex-wrap: wrap; justify-content: center; }
.warm-footer-links a { font-size: 0.625rem; text-transform: uppercase; font-weight: 700; color: var(--w-muted); letter-spacing: .2em; transition: color .2s; }
.warm-footer-links a:hover { color: var(--w-accent); }
.warm-footer-links a[aria-current="page"] { color: var(--w-ink); }