/* RTTYDX — visual system v2.0 tokens and components.
   Ink and paper do most of the work; oxide marks priority. */

@font-face { font-family: "DejaVu Sans Mono"; src: url("../fonts/DejaVuSansMono.063b161088ca.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "DejaVu Sans Mono"; src: url("../fonts/DejaVuSansMono-Bold.dcf1bef39872.woff2") format("woff2"); font-weight: 700; font-display: swap; }

:root {
  /* Brand palette */
  --paper: #F2EDE2;
  --ink: #242521;
  --oxide: #B74732;
  --olive: #777A5B;
  --ochre: #B48B54;
  --stone: #C9C0B2;
  /* Text-safe variants (WCAG AA on paper) */
  --oxide-text: #A23D2A;
  --olive-text: #5E6147;
  --ochre-text: #7D5C2E;
  --muted: #5C5A52;
  /* Roles */
  --bg: var(--paper);
  --fg: var(--ink);
  --rule: var(--stone);
  --rule-strong: var(--ink);
  --surface: #EAE4D7;
  --accent: var(--oxide);
  --accent-text: var(--oxide-text);
  --on-accent: var(--paper);
  --bar: var(--ink);
  --bar-empty: var(--stone);
  --focus: var(--oxide);

  --font: "Lato", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "DejaVu Sans Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --u: 8px;
  --max: 1440px;
  --read: 68ch;
  --gutter: 16px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #1C1D1A; --fg: #E9E3D6; --rule: #4A4740; --rule-strong: #E9E3D6; --surface: #24251F;
    --accent: #D06650; --accent-text: #E07A62; --on-accent: #1C1D1A;
    --olive-text: #A7AA86; --ochre-text: #D2A869; --muted: #A9A497;
    --olive: #A7AA86; --ochre: #D2A869; --bar: #E9E3D6; --bar-empty: #3A3934; --focus: #E07A62;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #1C1D1A; --fg: #E9E3D6; --rule: #4A4740; --rule-strong: #E9E3D6; --surface: #24251F;
  --accent: #D06650; --accent-text: #E07A62; --on-accent: #1C1D1A;
  --olive-text: #A7AA86; --ochre-text: #D2A869; --muted: #A9A497;
  --olive: #A7AA86; --ochre: #D2A869; --bar: #E9E3D6; --bar-empty: #3A3934; --focus: #E07A62;
  color-scheme: dark;
}

@media (min-width: 720px) { :root { --gutter: 24px; } }
@media (min-width: 1100px) { :root { --gutter: 40px; } }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 400 1rem/1.5 var(--font);
  font-variant-numeric: tabular-nums;
  min-height: 100vh; display: flex; flex-direction: column;
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; scroll-behavior: auto !important; } }

a { color: inherit; text-decoration-color: var(--rule); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-color: currentColor; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
img, svg { max-width: 100%; }
h1, h2, h3 { line-height: 1.15; margin: 0; }
p { margin: 0 0 calc(var(--u) * 2); }
.skip { position: absolute; left: -999px; top: 0; background: var(--fg); color: var(--bg); padding: var(--u); }
.skip:focus { left: var(--u); z-index: 10; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.mono, .call, .freq, .utc { font-family: var(--mono); }
.call { font-weight: 700; text-transform: uppercase; letter-spacing: 0.02em; white-space: nowrap; }
.call a { text-decoration: none; }
.call a:hover { text-decoration: underline; }
.freq { white-space: nowrap; }
.muted { color: var(--muted); }
.small { font-size: 0.875rem; }
.eyebrow { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin: 0 0 var(--u); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------------------------------------------------------------- header */
.site-header { border-bottom: 2px solid var(--rule-strong); }
.site-header .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: var(--u) calc(var(--u) * 3); padding-top: calc(var(--u) * 1.5); padding-bottom: calc(var(--u) * 1.5); }
.wordmark { font-weight: 900; font-size: 1.5rem; letter-spacing: 0.04em; text-decoration: none; line-height: 1; display: inline-flex; gap: 0.18em; }
.wordmark span { color: var(--accent); }
.nav { display: flex; flex-wrap: wrap; gap: var(--u) calc(var(--u) * 2.5); order: 3; width: 100%; }
.nav a { font-size: 0.8125rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; text-decoration: none; padding: 6px 0; border-bottom: 2px solid transparent; }
.nav a[aria-current="page"] { border-bottom-color: var(--accent); }
.nav a:hover { border-bottom-color: var(--rule); }
.header-tools { margin-left: auto; display: flex; align-items: center; gap: calc(var(--u) * 2); }
.utc { font-size: 0.875rem; white-space: nowrap; }
.search input { font: inherit; font-size: 0.875rem; width: 11rem; padding: 6px 10px; border: 1px solid var(--rule); background: transparent; color: var(--fg); border-radius: 0; }
.search input:focus { border-color: var(--fg); outline: none; }
.account { font-size: 0.875rem; white-space: nowrap; }
.theme-toggle { font: inherit; font-size: 0.75rem; background: none; border: 1px solid var(--rule); color: var(--fg); padding: 4px 8px; min-height: 28px; cursor: pointer; }
@media (min-width: 960px) {
  .nav { order: 0; width: auto; }
}
@media (max-width: 559px) {
  .search { order: 4; width: 100%; }
  .search input { width: 100%; }
  .header-tools { gap: var(--u); }
}

/* ---------------------------------------------------------------- layout */
main { flex: 1; padding-bottom: calc(var(--u) * 8); }
.section { padding-top: calc(var(--u) * 6); }
.section-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--u) calc(var(--u) * 2); border-top: 2px solid var(--rule-strong); padding-top: calc(var(--u) * 1.5); margin-bottom: calc(var(--u) * 2); }
.section-head h2 { font-size: 1rem; font-weight: 900; letter-spacing: 0.12em; text-transform: uppercase; }
.section-head .more { margin-left: auto; font-size: 0.875rem; }
.grid { display: grid; gap: calc(var(--u) * 5) calc(var(--u) * 6); grid-template-columns: minmax(0, 1fr); }
.grid > * { min-width: 0; }
@media (min-width: 900px) {
  .grid { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .grid > * { grid-column: span 12; }
  .span-4 { grid-column: span 4 !important; }
  .span-5 { grid-column: span 5 !important; }
  .span-6 { grid-column: span 6 !important; }
  .span-7 { grid-column: span 7 !important; }
  .span-8 { grid-column: span 8 !important; }
}
.page-head { padding-top: calc(var(--u) * 5); }
.page-head h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); font-weight: 900; letter-spacing: -0.01em; }
.page-head p { max-width: var(--read); margin-top: calc(var(--u) * 1.5); color: var(--muted); font-size: 1.0625rem; }
.prose { max-width: var(--read); }
.prose h2 { font-size: 1.25rem; margin: calc(var(--u) * 4) 0 var(--u); }

/* ---------------------------------------------------------------- hero */
.hero { padding-top: calc(var(--u) * 6); }
.hero h1 { font-size: clamp(2rem, 5.2vw, 4rem); font-weight: 900; letter-spacing: -0.02em; line-height: 1.02; max-width: 14ch; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lede { font-size: 1.125rem; max-width: 48ch; margin-top: calc(var(--u) * 2.5); color: var(--muted); }
.hero .ita2 { display: block; margin-top: calc(var(--u) * 4); fill: var(--fg); }
.figures { display: flex; flex-wrap: wrap; gap: calc(var(--u) * 3) calc(var(--u) * 5); margin: calc(var(--u) * 4) 0 0; padding: 0; }
.figures div { margin: 0; }
.figures dt { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.figures dd { margin: 0; font-family: var(--mono); font-size: clamp(2rem, 4vw, 2.75rem); font-weight: 700; line-height: 1.1; }
.cta-row { display: flex; flex-wrap: wrap; gap: calc(var(--u) * 1.5); margin-top: calc(var(--u) * 4); }

/* ---------------------------------------------------------------- band bars */
.bands { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.bands li { display: grid; grid-template-columns: 3.5rem 1fr 3rem; align-items: center; gap: calc(var(--u) * 1.5); }
.bands a { text-decoration: none; display: contents; }
.bands .label { font-family: var(--mono); font-size: 0.875rem; }
.bands .track { height: 16px; background: repeating-linear-gradient(90deg, var(--bar-empty) 0 2px, transparent 2px 8px); position: relative; }
.bands .fill { position: absolute; inset: 0 auto 0 0; background: var(--bar); min-width: 0; }
.bands .n { font-family: var(--mono); font-size: 0.875rem; text-align: right; }
.bands li.zero .label, .bands li.zero .n { color: var(--muted); }
.bands-caption { margin-top: calc(var(--u) * 1.5); }

/* ---------------------------------------------------------------- buttons & forms */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 40px; padding: 8px 18px; font: 700 0.875rem/1 var(--font); letter-spacing: 0.08em; text-transform: uppercase; text-decoration: none; border: 2px solid var(--fg); background: transparent; color: var(--fg); cursor: pointer; border-radius: 0; }
.btn:hover { background: var(--surface); }
.btn--primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn--primary:hover { background: var(--accent-text); border-color: var(--accent-text); }
.btn--ink { background: var(--fg); color: var(--bg); }
.btn--ink:hover { background: var(--fg); opacity: 0.88; }
.btn--quiet { border-color: var(--rule); font-weight: 400; text-transform: none; letter-spacing: 0; }
.btn--small { min-height: 28px; padding: 4px 10px; font-size: 0.75rem; }
.linkbtn { background: none; border: 0; padding: 0; font: inherit; color: inherit; text-decoration: underline; text-decoration-color: var(--rule); text-underline-offset: 3px; cursor: pointer; }

form.stack { max-width: 40rem; display: grid; gap: calc(var(--u) * 2.5); }
.field label { display: block; font-weight: 700; font-size: 0.875rem; margin-bottom: 4px; }
.field input[type=text], .field input[type=email], .field input[type=password], .field input[type=url], .field input[type=number],
.field input[type=date], .field input[type=datetime-local], .field select, .field textarea {
  width: 100%; font: inherit; color: var(--fg); background: var(--bg); border: 1px solid var(--muted); padding: 10px 12px; border-radius: 0; min-height: 44px;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--focus); outline-offset: 0; border-color: var(--fg); }
.field .help { font-size: 0.8125rem; color: var(--muted); margin-top: 4px; }
.field .errors { color: var(--accent-text); font-size: 0.875rem; margin: 4px 0 0; padding: 0; list-style: none; font-weight: 700; }
.field--check { display: flex; gap: var(--u); align-items: flex-start; }
.field--check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--accent); }
.field--check label { font-weight: 400; font-size: 1rem; margin: 0; }
.form-errors { border-left: 4px solid var(--accent); padding: var(--u) calc(var(--u) * 2); color: var(--accent-text); font-weight: 700; }
fieldset { border: 0; padding: 0; margin: 0; }
legend { font-weight: 900; letter-spacing: 0.1em; text-transform: uppercase; font-size: 0.875rem; margin-bottom: var(--u); padding: 0; }

.messages { list-style: none; margin: calc(var(--u) * 3) 0 0; padding: 0; }
.messages li { border-left: 4px solid var(--fg); padding: var(--u) calc(var(--u) * 2); background: var(--surface); }
.messages li.error { border-color: var(--accent); }
.messages li + li { margin-top: var(--u); }

/* ---------------------------------------------------------------- tables */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.data { width: 100%; border-collapse: collapse; font-size: 0.9375rem; }
.data th { text-align: left; font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); padding: 6px 12px 6px 0; border-bottom: 1px solid var(--rule-strong); white-space: nowrap; }
.data td { padding: 9px 12px 9px 0; border-bottom: 1px solid var(--rule); vertical-align: baseline; }
.data tr:last-child td { border-bottom: 0; }
.data .num { text-align: right; }
.data th.num { text-align: right; }
.data th button { font: inherit; letter-spacing: inherit; text-transform: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
.data th[aria-sort] button::after { content: " ↓"; }
.data th[aria-sort="ascending"] button::after { content: " ↑"; }
.data tr.rare td:first-child { box-shadow: inset 3px 0 0 var(--accent); padding-left: 10px; }
.data .entity { min-width: 9rem; padding-left: 12px; }
@media (max-width: 559px) { .data .status { min-width: 0; } }
.empty { padding: calc(var(--u) * 3) 0; color: var(--muted); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
@media (max-width: 719px) { .hide-sm { display: none; } }

/* ---------------------------------------------------------------- status */
.status { display: inline-block; min-width: 6.5em; text-align: center; padding: 2px 6px; font: 700 0.6875rem/1.4 var(--font); letter-spacing: 0.1em; text-transform: uppercase; border: 1px solid; white-space: nowrap; }
.status--planned { color: var(--olive-text); border-color: var(--olive); }
.status--reported { color: var(--ochre-text); border-color: var(--ochre); border-left-width: 4px; }
.status--verified { color: var(--bg); background: var(--fg); border-color: var(--fg); }
.status--pending { color: var(--muted); border-style: dashed; border-color: var(--muted); }
.status--rejected { color: var(--accent-text); border-color: var(--accent); }
.status--live { color: var(--on-accent); background: var(--accent); border-color: var(--accent); }
.legend { display: flex; flex-wrap: wrap; gap: var(--u) calc(var(--u) * 3); font-size: 0.8125rem; color: var(--muted); margin-top: calc(var(--u) * 1.5); }

/* ---------------------------------------------------------------- lists */
.rows { list-style: none; margin: 0; padding: 0; }
.rows > li { border-bottom: 1px solid var(--rule); padding: calc(var(--u) * 1.5) 0; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px calc(var(--u) * 2); align-items: baseline; }
.rows > li:first-child { padding-top: 0; }
.rows .title { font-weight: 700; }
.rows .meta { grid-column: 1 / -1; font-size: 0.875rem; color: var(--muted); }
.rows .when { font-family: var(--mono); font-size: 0.875rem; white-space: nowrap; text-align: right; }
.activation-line { display: flex; flex-wrap: wrap; gap: 4px calc(var(--u) * 1.5); align-items: baseline; }
.activation-line .call { font-size: 1.125rem; }
.band-tags { font-family: var(--mono); font-size: 0.8125rem; color: var(--muted); }

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 calc(var(--u) * 2); padding: 0; list-style: none; }
.chips a { display: inline-flex; align-items: center; min-height: 32px; padding: 4px 10px; font-family: var(--mono); font-size: 0.8125rem; border: 1px solid var(--rule); text-decoration: none; }
.chips a[aria-current="true"] { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.chips a:hover { border-color: var(--fg); }
.toolbar { display: flex; flex-wrap: wrap; gap: var(--u) calc(var(--u) * 3); align-items: center; justify-content: space-between; margin-bottom: var(--u); }

.wanted-list { list-style: none; margin: 0; padding: 0; counter-reset: w; }
.wanted-list li { display: grid; grid-template-columns: 2rem minmax(0, 1fr) auto; gap: calc(var(--u) * 1.5); padding: 8px 0; border-bottom: 1px solid var(--rule); align-items: baseline; }
.wanted-list .rank { font-family: var(--mono); color: var(--muted); font-size: 0.875rem; }
.wanted-list .n { font-family: var(--mono); font-size: 0.875rem; }

.callout { border-left: 4px solid var(--accent); padding: calc(var(--u) * 2) calc(var(--u) * 3); background: var(--surface); }
.callout h3 { font-size: 1.125rem; margin-bottom: var(--u); }
.why { display: grid; gap: calc(var(--u) * 3); grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); counter-reset: why; }
.why > div { border-top: 1px solid var(--rule-strong); padding-top: calc(var(--u) * 1.5); }
.why h3 { font-size: 1rem; margin-bottom: var(--u); }
.why h3::before { counter-increment: why; content: "0" counter(why); font-family: var(--mono); font-weight: 400; color: var(--accent-text); margin-right: var(--u); }
.why p { color: var(--muted); font-size: 0.9375rem; }

dl.facts { display: grid; grid-template-columns: max-content 1fr; gap: var(--u) calc(var(--u) * 3); margin: 0; }
dl.facts dt { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); padding-top: 3px; }
dl.facts dd { margin: 0; }

.entity-picker .filter { max-width: 24rem; margin-bottom: calc(var(--u) * 3); }
.entity-picker fieldset { margin-bottom: calc(var(--u) * 4); }
.entity-picker .cols { columns: 16rem auto; column-gap: calc(var(--u) * 4); }
.entity-picker label { display: flex; gap: var(--u); align-items: baseline; padding: 4px 0; break-inside: avoid; min-height: 28px; cursor: pointer; }
.entity-picker input { width: 18px; height: 18px; accent-color: var(--accent); flex: none; transform: translateY(3px); }
.entity-picker .pfx { font-family: var(--mono); font-size: 0.8125rem; color: var(--muted); }
.sticky-save { position: sticky; bottom: 0; background: var(--bg); border-top: 2px solid var(--rule-strong); padding: calc(var(--u) * 1.5) 0; display: flex; gap: calc(var(--u) * 2); align-items: center; }

/* ---------------------------------------------------------------- footer */
.site-footer { border-top: 2px solid var(--rule-strong); padding: calc(var(--u) * 4) 0 calc(var(--u) * 5); font-size: 0.875rem; color: var(--muted); }
.site-footer .wrap { display: grid; gap: calc(var(--u) * 2); }
.site-footer .ita2 { fill: var(--fg); }
.site-footer a { color: var(--fg); }
.footer-links { display: flex; flex-wrap: wrap; gap: var(--u) calc(var(--u) * 3); }