/* Public site. Tokens come from fonts.css. One bold element: the routing board in the hero. */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.6 var(--text);
  font-feature-settings: "kern", "liga";
}
a { color: var(--signal-ink); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--signal); outline-offset: 3px; border-radius: 2px; }

.wrap { width: min(1180px, 100% - 2.5rem); margin-inline: auto; }

/* Header */
.site-head { padding-block: 1.5rem; }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.head-tools { display: flex; align-items: center; gap: 0.75rem; }
.theme-toggle {
  display: inline-grid; place-items: center;
  width: 2.1rem; height: 2.1rem; padding: 0;
  border: 1px solid var(--line); border-radius: 999px;
  background: transparent; color: var(--ink-soft); cursor: pointer;
}
.theme-toggle:hover { color: var(--ink); background: var(--surface); }
.theme-toggle .icon { width: 1.05rem; height: 1.05rem; }
.wordmark {
  font: 600 1.15rem/1 var(--display);
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}
.wordmark span { color: var(--signal); }
.lang { display: flex; gap: 0.25rem; font-size: 0.95rem; }
.lang a, .lang strong { padding: 0.3rem 0.6rem; border-radius: 999px; text-decoration: none; }
.lang strong { background: var(--ink); color: var(--paper); font-weight: 500; }
.lang a { color: var(--ink-soft); }
.lang a:hover { color: var(--ink); background: var(--surface); }

/* Hero */
.hero { padding-block: clamp(2.5rem, 7vw, 6rem) clamp(2rem, 4vw, 3.5rem); }
.hero h1 {
  margin: 0;
  max-width: 17ch;
  font: 700 clamp(2.3rem, 5.6vw, 4.6rem)/1.04 var(--display);
  letter-spacing: -0.035em;
  text-wrap: balance;
}
.hero .lead {
  margin: 1.75rem 0 0;
  max-width: 58ch;
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
  line-height: 1.55;
  color: var(--ink-soft);
}

/* Routing board: sources -> checks -> channel, one row per channel, real data */
.board {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  border-top: 2px solid var(--ink);
}
.board-head, .route {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr) minmax(0, 0.8fr);
  gap: 0 2rem;
}
.board-head {
  padding: 0.75rem 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
}
.route {
  position: relative;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--line);
  align-items: center;
}
.route-sources { display: flex; flex-wrap: wrap; gap: 0.4rem; min-width: 0; }
.route:last-child { border-bottom: 2px solid var(--ink); }
.chip {
  display: inline-block;
  padding: 0.22rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: 0.88rem;
  max-width: 100%;
  overflow-wrap: anywhere;
}
.chip-more { border-style: dashed; color: var(--ink-soft); background: transparent; }
.route-checks {
  position: relative;
  display: flex;
  gap: 0.35rem;
  align-items: center;
  font-size: 0.9rem;
  color: var(--ink-soft);
}
/* the signal line runs through the middle column into the channel */
.route-checks::before {
  content: "";
  position: absolute;
  left: -2rem; right: -2rem; top: 50%;
  border-top: 2px solid var(--signal);
  z-index: 0;
}
.step {
  position: relative;
  z-index: 1;
  padding: 0.25rem 0.55rem;
  background: var(--paper);
  border: 2px solid var(--signal);
  border-radius: 6px;
  color: var(--signal-ink);
  font-weight: 500;
  white-space: nowrap;
}
.step-you { background: var(--signal); color: var(--on-signal); }
.route-channel { position: relative; z-index: 1; }
.route-channel a {
  display: block;
  font: 600 1.15rem/1.2 var(--display);
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--ink);
}
.route-channel a:hover { color: var(--signal-ink); }
.route-channel small { display: block; margin-top: 0.3rem; color: var(--ink-soft); font-size: 0.88rem; }

/* Content sections from the CMS */
.section {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  gap: 1.5rem 3rem;
  padding-block: clamp(2.5rem, 5vw, 4rem);
  border-top: 1px solid var(--line);
}
.section h2 {
  margin: 0;
  font: 600 clamp(1.35rem, 2.2vw, 1.75rem)/1.2 var(--display);
  letter-spacing: -0.02em;
}
.prose { max-width: 66ch; }
.prose > :first-child { margin-top: 0; }
.prose p { margin: 0 0 1rem; }
.prose ul { list-style: none; margin: 0; padding: 0; }
.prose ul > li { padding: 0.9rem 0; border-bottom: 1px solid var(--line); }
.prose ul > li:first-child { padding-top: 0; }
.prose ul > li:last-child { border-bottom: 0; }
.prose ol { margin: 0; padding: 0; list-style: none; counter-reset: step; }
.prose ol > li {
  counter-increment: step;
  position: relative;
  padding: 0 0 1.1rem 3rem;
}
.prose ol > li::before {
  content: counter(step);
  position: absolute;
  left: 0; top: -0.1rem;
  width: 2rem; height: 2rem;
  display: grid; place-items: center;
  border: 2px solid var(--signal);
  border-radius: 50%;
  font: 600 0.9rem/1 var(--display);
  color: var(--signal-ink);
}
.prose strong { font-weight: 600; }
.prose table { border-collapse: collapse; width: 100%; }
.prose th, .prose td { text-align: left; padding: 0.5rem 0.75rem 0.5rem 0; border-bottom: 1px solid var(--line); }
.prose blockquote { margin: 0 0 1rem; padding-left: 1rem; border-left: 3px solid var(--signal); color: var(--ink-soft); }
.prose code { font-size: 0.92em; background: var(--surface); padding: 0.1em 0.3em; border-radius: 4px; }

/* Plain pages */
.page { padding-block: clamp(2rem, 5vw, 4rem); }
.page h1 { margin: 0 0 1.5rem; font: 700 clamp(2rem, 4vw, 3rem)/1.1 var(--display); letter-spacing: -0.03em; max-width: 22ch; }
.page .prose h2 { font: 600 1.4rem/1.25 var(--display); margin: 2.2rem 0 0.8rem; }

/* Footer */
.site-foot { margin-top: 2rem; padding-block: 2rem 3rem; border-top: 2px solid var(--ink); font-size: 0.92rem; color: var(--ink-soft); }
.site-foot .wrap { display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; }
.site-foot nav { display: flex; flex-wrap: wrap; gap: 1rem; }
.site-foot a { color: var(--ink-soft); }

/* Error page */
.error { padding-block: 6rem; }
.error h1 { font: 700 clamp(2rem, 5vw, 3.5rem)/1.1 var(--display); margin: 0 0 1rem; }

@media (max-width: 820px) {
  .board-head { display: none; }
  .route { grid-template-columns: 1fr; gap: 0.9rem; }
  .route-checks::before { left: 0; right: 0; }
  .section { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: no-preference) {
  .route-checks::before { transform-origin: left; animation: wire 0.9s ease-out both; }
  .route:nth-child(3) .route-checks::before { animation-delay: 0.15s; }
  .route:nth-child(4) .route-checks::before { animation-delay: 0.3s; }
  @keyframes wire { from { transform: scaleX(0); } to { transform: scaleX(1); } }
}