/* Lumos Network — 2026 edition stylesheet.
   Palette: warm paper, burnt sienna accent, olive secondary.
   Separation is by rule and border, not by shadow. */

:root {
  --paper:      #FAF6EF;
  --paper-deep: #F2EADC;
  --surface:    #FFFFFF;
  --ink:        #241F19;
  --ink-soft:   #4B4237;
  --rule:       #DFD4C0;
  --rule-firm:  #BFAF93;
  --accent:     #8F3512;
  --accent-bg:  #F7E9DE;
  --olive:      #41601C;
  --olive-bg:   #ECF0E1;
  --radius:     4px;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.68 var(--sans);
  overflow-wrap: break-word;
}

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 600; line-height: 1.22; margin: 0 0 .5em; }
h1 { font-size: clamp(1.9rem, 1.3rem + 2.4vw, 2.8rem); letter-spacing: -.01em; }
h2 { font-size: clamp(1.4rem, 1.1rem + 1.2vw, 1.85rem); margin-top: 2.2em; }
h3 { font-size: 1.22rem; margin-top: 1.8em; }
h4 { font-size: 1.05rem; margin-top: 1.5em; font-family: var(--sans); font-weight: 700; }
p, ul, ol, dl, table { margin: 0 0 1.15em; }
li { margin-bottom: .45em; }
strong { font-weight: 650; }

a { color: var(--accent); text-decoration: underline; text-underline-offset: .15em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--olive); outline-offset: 2px; border-radius: 2px; }

.wrap { width: min(100% - 2rem, 1140px); margin-inline: auto; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--paper); padding: .7rem 1.1rem; z-index: 50;
}
.skip:focus { left: .5rem; top: .5rem; }

/* ---------- masthead ---------- */
.masthead { background: var(--paper-deep); border-bottom: 1px solid var(--rule-firm); }
.masthead-in { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; padding: .85rem 0; }
.brand { display: flex; align-items: center; gap: .65rem; text-decoration: none; color: var(--ink); margin-right: auto; }
.brand-mark {
  display: grid; place-items: center; width: 40px; height: 40px; flex: none;
  background: var(--accent); color: var(--paper); border-radius: var(--radius);
  font-family: var(--serif); font-weight: 700; font-size: 1.15rem; letter-spacing: .02em;
}
.brand-text { display: flex; flex-direction: column; }
.brand-name { font-family: var(--serif); font-size: 1.28rem; font-weight: 600; letter-spacing: .01em; }
.brand-sub { font-size: .76rem; color: var(--ink-soft); letter-spacing: .06em; text-transform: uppercase; }

.nav-btn {
  font: inherit; font-size: .95rem; background: var(--surface); color: var(--ink);
  border: 1px solid var(--rule-firm); border-radius: var(--radius); padding: .45rem .9rem; cursor: pointer;
}
.primary-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .15rem 1.25rem; }
.primary-nav li { margin: 0; }
.primary-nav a {
  display: block; padding: .3rem 0; font-size: .95rem; color: var(--ink-soft);
  text-decoration: none; border-bottom: 2px solid transparent;
}
.primary-nav a:hover { color: var(--accent); border-bottom-color: var(--rule-firm); }
.primary-nav a[aria-current="page"] { color: var(--accent); border-bottom-color: var(--accent); }

@media (max-width: 860px) {
  .primary-nav { flex-basis: 100%; display: none; }
  .primary-nav.is-open { display: block; }
  .primary-nav ul { flex-direction: column; gap: 0; border-top: 1px solid var(--rule); padding-top: .4rem; }
  .primary-nav a { padding: .6rem 0; border-bottom: 1px solid var(--rule); }
}
@media (min-width: 861px) { .nav-btn { display: none; } }

/* ---------- layout ---------- */
.band { padding: 2.4rem 0; border-bottom: 1px solid var(--rule); }
.band-tint { background: var(--paper-deep); }
.band:last-of-type { border-bottom: 0; }

.grid-side { display: grid; gap: 2.5rem; align-items: start; }
@media (min-width: 1000px) { .grid-side { grid-template-columns: minmax(0,1fr) 288px; } }
.col-main > :first-child { margin-top: 0; }
.prose { max-width: 72ch; }

.aside-stack { display: grid; gap: 1.25rem; position: sticky; top: 1rem; }
@media (max-width: 999px) { .aside-stack { position: static; } }
.aside-box { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--radius); padding: 1rem 1.1rem; font-size: .95rem; }
.aside-box h2, .aside-box h3 { margin: 0 0 .6rem; font-size: 1rem; font-family: var(--sans); font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-soft); }
.aside-box ul, .aside-box ol { margin: 0; padding-left: 1.1rem; }
.aside-box li { margin-bottom: .4em; }
.aside-box p:last-child { margin-bottom: 0; }
.toc-nav ol { list-style: decimal; }

/* ---------- hero ---------- */
.hero { background: var(--paper-deep); border-bottom: 1px solid var(--rule-firm); padding: 2.6rem 0 2.2rem; }
.hero-card {
  background: var(--surface); border: 1px solid var(--rule-firm);
  border-left: 5px solid var(--accent); border-radius: var(--radius); padding: 1.6rem 1.5rem;
}
.edition-tag {
  display: inline-block; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent); border: 1px solid var(--accent); border-radius: 2px; padding: .2rem .55rem; margin-bottom: .9rem;
}
.hero-lede { font-size: 1.14rem; max-width: 68ch; }
.keypoints { list-style: none; margin: 1.5rem 0 0; padding: 0; display: grid; gap: 1px; background: var(--rule); border: 1px solid var(--rule); border-radius: var(--radius); overflow: hidden; }
@media (min-width: 720px) { .keypoints { grid-template-columns: repeat(4, 1fr); } }
.keypoints li { margin: 0; background: var(--surface); padding: .9rem 1rem; font-size: .93rem; }
.keypoints b { display: block; font-family: var(--sans); font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: .3rem; }

/* ---------- disclosure ---------- */
.disclosure {
  background: var(--accent-bg); border: 1px solid #DFBFA6; border-radius: var(--radius);
  padding: 1.3rem 1.4rem; margin: 0 0 1.8rem;
}
.disclosure h2 { margin: 0 0 .5rem; font-size: 1.2rem; }
.disclosure p { margin-bottom: .8rem; }
.disclosure p:last-child { margin-bottom: 0; }

.paid { border: 1px solid var(--rule-firm); border-radius: var(--radius); background: var(--surface); padding: 1.1rem 1.2rem; margin: 1.6rem 0; }
.paid-note { margin: 0 0 .8rem; font-size: .97rem; color: var(--ink-soft); }
.paid-act { margin: 0; }
.paid-link {
  display: inline-block; background: var(--accent); color: #FFFFFF; text-decoration: none;
  padding: .7rem 1.2rem; border-radius: var(--radius); font-weight: 600;
}
.paid-link:hover { background: #7A2C0D; text-decoration: underline; }

/* ---------- blocks ---------- */
.callout { border-left: 4px solid var(--olive); background: var(--olive-bg); padding: 1rem 1.2rem; border-radius: 0 var(--radius) var(--radius) 0; margin: 1.6rem 0; }
.callout h3 { margin-top: 0; font-size: 1.05rem; font-family: var(--sans); font-weight: 700; }
.callout :last-child { margin-bottom: 0; }

.watch { border: 1px dashed var(--rule-firm); background: var(--surface); padding: 1rem 1.2rem; border-radius: var(--radius); margin: 1.6rem 0; }
.watch h3 { margin-top: 0; font-size: 1.05rem; font-family: var(--sans); font-weight: 700; }
.watch :last-child { margin-bottom: 0; }

.method-box { background: var(--surface); border: 1px solid var(--rule-firm); border-top: 4px solid var(--olive); border-radius: var(--radius); padding: 1.2rem 1.3rem; margin: 1.8rem 0; }
.method-box h3 { margin-top: 0; }
.method-box :last-child { margin-bottom: 0; }

.quick { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--radius); padding: 1rem 1.2rem; margin: 1.5rem 0; }
.quick h3 { margin-top: 0; font-family: var(--sans); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-soft); }
.quick :last-child { margin-bottom: 0; }

.steps { counter-reset: step; list-style: none; padding: 0; margin: 1.4rem 0; }
.steps > li { counter-increment: step; position: relative; padding-left: 2.6rem; margin-bottom: 1.1rem; }
.steps > li::before {
  content: counter(step); position: absolute; left: 0; top: .1rem;
  width: 1.9rem; height: 1.9rem; display: grid; place-items: center;
  background: var(--olive); color: #FFFFFF; border-radius: 50%; font-size: .9rem; font-weight: 700;
}
.steps h3 { margin: 0 0 .3rem; font-size: 1.05rem; font-family: var(--sans); font-weight: 700; }

.checklist { list-style: none; padding: 0; margin: 1.3rem 0; }
.checklist li { position: relative; padding-left: 1.8rem; margin-bottom: .7em; }
.checklist li::before { content: ""; position: absolute; left: 0; top: .42em; width: .85rem; height: .85rem; border: 2px solid var(--accent); border-radius: 2px; }

dl.defs { margin: 1.3rem 0; }
dl.defs dt { font-weight: 700; margin-top: 1rem; }
dl.defs dd { margin: .25rem 0 0; color: var(--ink-soft); }

.table-scroll { overflow-x: auto; margin: 1.5rem 0; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: .95rem; margin: 0; }
caption { text-align: left; padding: .8rem 1rem; font-size: .9rem; color: var(--ink-soft); border-bottom: 1px solid var(--rule); }
th, td { text-align: left; padding: .75rem 1rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
thead th { background: var(--paper-deep); font-size: .82rem; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-soft); }
tbody tr:last-child td { border-bottom: 0; }

.cards { display: grid; gap: 1.1rem; margin: 1.5rem 0; }
@media (min-width: 700px) { .cards { grid-template-columns: repeat(2, 1fr); } }
.card { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--radius); padding: 1.1rem 1.2rem; }
.card h3 { margin-top: 0; font-size: 1.08rem; }
.card :last-child { margin-bottom: 0; }

.plusminus { display: grid; gap: 1.1rem; margin: 1.5rem 0; }
@media (min-width: 700px) { .plusminus { grid-template-columns: 1fr 1fr; } }
.pm { border: 1px solid var(--rule); border-radius: var(--radius); padding: 1rem 1.2rem; background: var(--surface); }
.pm.is-for { border-top: 4px solid var(--olive); }
.pm.is-against { border-top: 4px solid var(--accent); }
.pm h3 { margin-top: 0; font-size: 1rem; font-family: var(--sans); font-weight: 700; }
.pm ul { margin-bottom: 0; padding-left: 1.1rem; }

.timeline { list-style: none; padding: 0; margin: 1.4rem 0; border-left: 2px solid var(--rule-firm); }
.timeline li { position: relative; padding: 0 0 1.2rem 1.4rem; margin: 0; }
.timeline li::before { content: ""; position: absolute; left: -.43rem; top: .55em; width: .7rem; height: .7rem; background: var(--accent); border-radius: 50%; }
.timeline b { display: block; font-size: .85rem; letter-spacing: .05em; text-transform: uppercase; color: var(--ink-soft); }

.acc { border: 1px solid var(--rule); border-radius: var(--radius); background: var(--surface); margin: 1.4rem 0; }
.acc-item + .acc-item { border-top: 1px solid var(--rule); }
.acc-btn {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem; width: 100%;
  font: inherit; font-weight: 600; text-align: left; background: none; border: 0;
  padding: .95rem 1.1rem; cursor: pointer; color: var(--ink);
}
.acc-btn::after { content: "+"; font-size: 1.3rem; line-height: 1; color: var(--accent); }
.acc-btn[aria-expanded="true"]::after { content: "\2212"; }
.acc-panel { padding: 0 1.1rem 1rem; }
.acc-panel :last-child { margin-bottom: 0; }
.acc-panel[hidden] { display: none; }

.qa { border-top: 1px solid var(--rule); padding-top: 1.4rem; margin-top: 1.8rem; }
.qa h3 { margin-top: 0; }

.linklist { list-style: none; padding: 0; }
.linklist li { border-bottom: 1px solid var(--rule); padding: .8rem 0; margin: 0; }
.linklist a { font-weight: 600; }
.linklist span { display: block; color: var(--ink-soft); font-size: .95rem; }

.lede { font-size: 1.12rem; max-width: 68ch; }
.meta-line { font-size: .9rem; color: var(--ink-soft); border-bottom: 1px solid var(--rule); padding-bottom: .9rem; margin-bottom: 1.6rem; }
.crumbs { font-size: .88rem; color: var(--ink-soft); padding: .9rem 0 0; }
.crumbs a { color: var(--ink-soft); }

/* ---------- footer ---------- */
.colophon { background: var(--ink); color: #E8E0D4; padding: 2.4rem 0 2.8rem; font-size: .95rem; }
.colophon a { color: #F0C9AE; }
.colophon p { margin: 0 0 .35rem; max-width: 74ch; }
.colo-site { font-family: var(--serif); font-size: 1.3rem; color: #FAF6EF; margin-bottom: .6rem; }
.colo-links { margin-top: 1rem; }
.colo-tm { margin-top: 1rem; color: #C9BEAE; font-size: .88rem; }
.colo-rev { margin-top: 1rem; color: #C9BEAE; font-size: .88rem; }

/* ---------- legal pages ---------- */
.legal { max-width: 74ch; }
.legal .eff { background: var(--surface); border: 1px solid var(--rule-firm); border-radius: var(--radius); padding: .8rem 1rem; font-weight: 600; }
.legal h2 { font-size: 1.3rem; }
.legal ol > li { margin-bottom: .6em; }