:root {
  --ink: #132a38;
  --ink-soft: #49616e;
  --navy: #10364a;
  --navy-deep: #0b2939;
  --cream: #f4f1e9;
  --paper: #fffdf8;
  --white: #ffffff;
  --yellow: #f4ca38;
  --yellow-soft: #fff3b7;
  --line: #d8ddd9;
  --line-dark: rgba(255,255,255,.17);
  --green: #3f8b69;
  --red: #c45145;
  --gray: #a7b0b2;
  --shadow: 0 24px 70px rgba(17, 42, 56, .12);
  --header-h: 82px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 28px);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--cream);
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

button, input { font: inherit; }
button { color: inherit; }

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 200;
  padding: 12px 16px;
  color: var(--white);
  background: var(--navy);
}

.skip-link:focus { top: 16px; }

.reading-progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 150;
  height: 3px;
  background: transparent;
}

.reading-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--yellow);
  transition: width .12s linear;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  color: var(--ink);
  background: rgba(244, 241, 233, .9);
  border-bottom: 1px solid rgba(19, 42, 56, .13);
  backdrop-filter: blur(18px);
}

.header-inner {
  width: min(1480px, calc(100% - 48px));
  height: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 36px;
}

.brand {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  text-align: left;
}

.brand-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  color: var(--navy-deep);
  background: var(--yellow);
  border: 1px solid rgba(16, 54, 74, .18);
  border-radius: 50%;
  font-weight: 700;
  letter-spacing: -.05em;
}

.brand-copy { display: grid; line-height: 1.1; }
.brand-copy strong { font-size: 15px; }
.brand-copy small { margin-top: 5px; color: var(--ink-soft); font-size: 12px; }

.header-links {
  justify-self: center;
  display: flex;
  align-items: center;
  gap: 32px;
}

.header-links button {
  appearance: none;
  padding: 10px 0;
  border: 0;
  border-bottom: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  color: var(--ink-soft);
  font-size: 14px;
}

.header-links button:hover,
.header-links button:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.search-trigger {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-width: 150px;
  padding: 10px 12px;
  border: 1px solid rgba(19, 42, 56, .18);
  border-radius: 4px;
  background: rgba(255,255,255,.35);
  cursor: pointer;
  color: var(--ink-soft);
  font-size: 13px;
}

.search-trigger svg,
.search-dialog svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

.search-trigger kbd {
  margin-left: auto;
  padding: 2px 6px;
  border-radius: 3px;
  background: rgba(19,42,56,.08);
  font-family: inherit;
  font-size: 10px;
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 21px;
  height: 1px;
  margin: 6px auto;
  background: currentColor;
}

.page-layout {
  width: min(1480px, calc(100% - 48px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  gap: 46px;
}

.chapter-rail {
  position: sticky;
  top: calc(var(--header-h) + 30px);
  align-self: start;
  height: calc(100vh - var(--header-h) - 54px);
  padding: 8px 26px 20px 0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(19, 42, 56, .13);
}

.rail-head {
  margin-bottom: 18px;
  color: #294b5c;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

#side-nav {
  display: grid;
  gap: 4px;
  min-width: 0;
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-width: thin;
}

.side-link {
  appearance: none;
  position: relative;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  column-gap: 6px;
  align-items: start;
  width: 100%;
  min-height: 44px;
  padding: 11px 10px 10px 24px;
  border: 0;
  background: transparent;
  cursor: pointer;
  text-align: left;
  white-space: normal;
  overflow-wrap: break-word;
  color: #385564;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.35;
  transition: color .2s ease, transform .2s ease;
}

.side-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 21px;
  width: 11px;
  height: 1px;
  background: #718a96;
  transition: width .25s ease, background .25s ease;
}

.side-link:hover { color: var(--ink); transform: translateX(3px); }
.side-link.active { color: #0b2939; font-weight: 700; }
.side-link.active::before { width: 15px; height: 2px; background: var(--yellow); }
.side-link .side-index { color: #4f6a77; font-size: 12px; line-height: 1.7; }
.side-link .side-link-label { min-width: 0; }

.rail-foot {
  margin-top: auto;
  color: #687f8a;
  font-size: 12px;
}

main { min-width: 0; }

.hero {
  padding: 100px 0 110px;
  display: grid;
  grid-template-columns: minmax(300px, .78fr) minmax(560px, 1.22fr);
  gap: 64px;
  align-items: start;
}

.hero-copy { padding-top: 28px; }
.eyebrow, .section-label {
  display: block;
  margin-bottom: 18px;
  color: #657984;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 650px;
  margin: 0;
  font-size: clamp(48px, 5vw, 76px);
  line-height: .99;
  letter-spacing: -.055em;
  font-weight: 700;
}

.hero h1 em {
  position: relative;
  color: var(--navy);
  font-family: inherit;
  font-style: normal;
  font-weight: 400;
}

.hero h1 em::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -3px;
  height: 8px;
  z-index: -1;
  background: var(--yellow);
  transform: rotate(-1deg);
}

.hero-copy > p {
  max-width: 570px;
  margin: 34px 0 0;
  color: var(--ink-soft);
  font-size: 19px;
  line-height: 1.6;
}

.role-guide {
  min-height: 590px;
  padding: 36px 40px 40px;
  color: var(--white);
  background: var(--navy);
  box-shadow: var(--shadow);
}

.role-guide .section-label { color: rgba(255,255,255,.58); margin-bottom: 10px; }
.role-guide-head {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line-dark);
}

.role-guide h2 {
  margin: 0;
  font-size: 28px;
  letter-spacing: -.03em;
}

.route-time {
  flex: none;
  margin-top: 5px;
  padding: 6px 10px;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 999px;
  color: rgba(255,255,255,.72);
  font-size: 11px;
}

.role-tabs {
  display: flex;
  gap: 28px;
  padding: 24px 0 0;
}

.role-tab {
  appearance: none;
  padding: 0 0 10px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  cursor: pointer;
  color: rgba(255,255,255,.55);
  font-weight: 600;
}

.role-tab:hover { color: var(--white); }
.role-tab[aria-selected="true"] { color: var(--white); border-bottom-color: var(--yellow); }

.role-route { animation: route-in .35s ease both; }

.route-title {
  margin: 28px 0 5px;
  color: var(--yellow);
  font-size: 13px;
  font-weight: 700;
}

.route-steps { counter-reset: route; margin: 12px 0 24px; }
.route-step {
  position: relative;
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(255,255,255,.1);
  color: rgba(255,255,255,.84);
  font-size: 14px;
}

.route-step::before {
  counter-increment: route;
  content: "0" counter(route);
  color: var(--yellow);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
}

.route-action {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 0 5px;
  border: 0;
  border-bottom: 1px solid var(--yellow);
  color: var(--white);
  background: transparent;
  cursor: pointer;
  font-weight: 700;
}

.route-action::after { content: "→"; color: var(--yellow); transition: transform .2s ease; }
.route-action:hover::after { transform: translateX(5px); }

.working-rule {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 28px;
  padding: 26px 0;
  border-top: 1px solid rgba(19,42,56,.22);
  border-bottom: 1px solid rgba(19,42,56,.22);
}

.working-rule span {
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.working-rule p { margin: 0; max-width: 850px; font-size: 20px; line-height: 1.45; }

.status-section {
  margin: 0 0 130px;
  padding: 82px 64px 72px;
  background: var(--paper);
  border: 1px solid rgba(19,42,56,.1);
}

.section-intro {
  max-width: 760px;
  margin-bottom: 48px;
}

.section-intro h2 {
  margin: 0;
  font-size: clamp(38px, 4vw, 58px);
  line-height: 1.04;
  letter-spacing: -.045em;
}

.section-intro p {
  max-width: 650px;
  margin: 22px 0 0;
  color: var(--ink-soft);
  font-size: 18px;
}

.signal-legend {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.signal-legend > div {
  min-height: 145px;
  padding: 27px 24px 24px;
  border-right: 1px solid var(--line);
}

.signal-legend > div:first-child { padding-left: 0; }
.signal-legend > div:last-child { border-right: 0; }
.signal-legend strong { display: block; margin-top: 18px; font-size: 15px; }
.signal-legend p { margin: 6px 0 0; color: var(--ink-soft); font-size: 13px; }

.signal {
  display: block;
  width: 35px;
  height: 4px;
  background: var(--gray);
}

.signal.green { background: var(--green); }
.signal.yellow { background: var(--yellow); }
.signal.red { background: var(--red); }
.signal.empty { background: transparent; border-top: 1px dashed var(--gray); }

.status-accordion { margin-top: 36px; }

.status-group {
  border-bottom: 1px solid var(--line);
}

.status-group summary {
  list-style: none;
  position: relative;
  padding: 22px 52px 22px 0;
  cursor: pointer;
  font-size: 19px;
  font-weight: 600;
}

.status-group summary::-webkit-details-marker { display: none; }
.status-group summary::before,
.status-group summary::after {
  content: "";
  position: absolute;
  right: 2px;
  top: 50%;
  width: 17px;
  height: 1px;
  background: var(--ink);
  transition: transform .25s ease;
}
.status-group summary::after { transform: rotate(90deg); }
.status-group[open] summary::after { transform: rotate(0); }

.status-list {
  display: grid;
  gap: 0;
  padding: 0 0 28px;
}

.status-row {
  display: grid;
  grid-template-columns: minmax(180px, 250px) 1fr;
  gap: 28px;
  padding: 16px 0;
  border-top: 1px solid rgba(216,221,217,.65);
}

.status-row strong { font-size: 14px; }
.status-row p { margin: 0; color: var(--ink-soft); font-size: 14px; }

.report-sections { padding-bottom: 60px; }
.report-sections > .section-intro { margin-bottom: 80px; }

.guide-section {
  padding: 82px 0 110px;
  border-top: 1px solid rgba(19,42,56,.24);
}

.guide-heading {
  display: grid;
  grid-template-columns: 92px minmax(0, 750px);
  gap: 24px;
  margin-bottom: 54px;
}

.chapter-number {
  width: 60px;
  padding-top: 8px;
  color: #73858d;
  border-top: 3px solid var(--yellow);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
}

.guide-heading .section-label { margin-bottom: 10px; }
.guide-heading h2 {
  margin: 0;
  font-size: clamp(38px, 4vw, 58px);
  line-height: 1.05;
  letter-spacing: -.04em;
}

.guide-heading p {
  max-width: 650px;
  margin: 17px 0 0;
  color: var(--ink-soft);
  font-size: 17px;
}

.guide-content { display: grid; gap: 34px; }

.instruction-flow {
  display: grid;
  grid-template-columns: minmax(220px, .36fr) minmax(0, 1fr);
  gap: 50px;
  padding: 38px 0 40px;
  border-top: 1px solid rgba(19,42,56,.14);
  border-bottom: 1px solid rgba(19,42,56,.14);
}

.instruction-flow h3 {
  margin: 0;
  font-size: 23px;
  line-height: 1.25;
  letter-spacing: -.025em;
}

.flow-note {
  margin: 12px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.step-list { counter-reset: instruction; }

.step-item {
  position: relative;
  counter-increment: instruction;
  padding: 0 0 22px 50px;
  color: #273e4a;
  font-size: 16px;
}

.step-item:last-child { padding-bottom: 0; }
.step-item::before {
  content: counter(instruction);
  position: absolute;
  left: 0;
  top: -2px;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  color: var(--navy);
  background: var(--yellow);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
}

.step-item::after {
  content: "";
  position: absolute;
  left: 13px;
  top: 29px;
  bottom: 2px;
  width: 1px;
  background: rgba(19,42,56,.18);
}

.step-item:last-child::after { display: none; }
.step-item strong { color: var(--ink); }

.figure-card {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: #e9ebe8;
  border: 1px solid rgba(19,42,56,.14);
}

.figure-button {
  appearance: none;
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: #e9ebe8;
  cursor: zoom-in;
  overflow: hidden;
}

.figure-button img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform .55s cubic-bezier(.2,.75,.2,1), filter .35s ease;
}

.figure-button::after {
  content: "Открыть крупно  ↗";
  position: absolute;
  right: 18px;
  bottom: 18px;
  padding: 9px 13px;
  color: var(--white);
  background: rgba(11,41,57,.9);
  opacity: 0;
  transform: translateY(5px);
  transition: opacity .25s ease, transform .25s ease;
  font-size: 12px;
}

.figure-button:hover img { transform: scale(1.012); filter: saturate(1.03); }
.figure-button:hover::after { opacity: 1; transform: translateY(0); }

.figure-caption {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  padding: 20px 24px 22px;
  color: var(--ink-soft);
  background: var(--paper);
  border-top: 1px solid rgba(19,42,56,.12);
  font-size: 13px;
}

.figure-caption strong { display: block; margin-bottom: 4px; color: var(--ink); font-size: 15px; }
.privacy-note { white-space: nowrap; color: #7b898f; font-size: 11px; }

.plain-note {
  display: grid;
  grid-template-columns: minmax(180px, 250px) 1fr;
  gap: 32px;
  padding: 24px 0;
  border-top: 1px solid rgba(19,42,56,.14);
  border-bottom: 1px solid rgba(19,42,56,.14);
}

.plain-note h3 { margin: 0; font-size: 16px; }
.plain-note p, .plain-note ul { margin: 0; color: var(--ink-soft); }
.plain-note ul { padding-left: 18px; }
.plain-note li + li { margin-top: 7px; }
.plain-note.warning h3 { color: #9f3e34; }
.plain-note.accent h3 { color: #2f7758; }

.section-statuses {
  border-top: 1px solid rgba(19,42,56,.2);
  border-bottom: 1px solid rgba(19,42,56,.2);
}

.section-statuses summary {
  list-style: none;
  position: relative;
  padding: 23px 52px 23px 0;
  cursor: pointer;
  font-size: 17px;
  font-weight: 700;
}
.section-statuses summary::-webkit-details-marker { display: none; }
.section-statuses summary::after {
  content: "Открыть +";
  position: absolute;
  right: 0;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 600;
}
.section-statuses[open] summary::after { content: "Свернуть −"; }
.section-statuses .status-list { padding-bottom: 24px; }

.search-dialog {
  width: min(760px, calc(100% - 36px));
  max-height: min(720px, calc(100vh - 48px));
  padding: 0;
  border: 0;
  background: var(--paper);
  box-shadow: 0 30px 100px rgba(0,0,0,.3);
}

.search-dialog::backdrop { background: rgba(7,24,33,.72); backdrop-filter: blur(5px); }

.search-dialog-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  padding: 18px;
  border-bottom: 1px solid var(--line);
}

.search-dialog-head label {
  display: grid;
  grid-template-columns: 24px 1fr;
  align-items: center;
  gap: 10px;
}

.search-dialog-head input {
  width: 100%;
  padding: 9px 0;
  border: 0;
  outline: 0;
  background: transparent;
  font-size: 17px;
}

#search-close {
  width: 42px;
  height: 42px;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-size: 26px;
}

.search-results { padding: 10px 18px 22px; overflow-y: auto; }
.search-results > p { padding: 16px; color: var(--ink-soft); }
.result-item {
  appearance: none;
  width: 100%;
  display: grid;
  gap: 3px;
  padding: 16px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  text-align: left;
}
.result-item:hover { background: #f4f1e9; }
.result-item strong { font-size: 15px; }
.result-item span { color: var(--ink-soft); font-size: 13px; }

.lightbox {
  width: min(1460px, calc(100% - 40px));
  max-width: none;
  max-height: calc(100vh - 40px);
  padding: 0;
  border: 0;
  background: #0a202c;
  box-shadow: 0 30px 100px rgba(0,0,0,.45);
}
.lightbox::backdrop { background: rgba(3,14,20,.88); }
.lightbox-close {
  position: fixed;
  right: 28px;
  top: 20px;
  z-index: 2;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,.4);
  border-radius: 50%;
  color: white;
  background: rgba(3,14,20,.72);
  cursor: pointer;
  font-size: 26px;
}
.lightbox-body { overflow: auto; max-height: calc(100vh - 40px); }
.lightbox img { display: block; width: 100%; height: auto; }
.lightbox-caption { padding: 16px 20px 20px; color: rgba(255,255,255,.78); font-size: 13px; }

.footer {
  margin-top: 20px;
  padding: 42px 0 54px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(19,42,56,.2);
}
.footer div { display: flex; align-items: center; gap: 16px; }
.footer strong { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%; background: var(--yellow); }
.footer span { color: var(--ink-soft); font-size: 13px; }
.footer button {
  appearance: none;
  padding: 8px 0;
  border: 0;
  border-bottom: 1px solid currentColor;
  background: transparent;
  cursor: pointer;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s ease, transform .7s cubic-bezier(.2,.75,.2,1);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@keyframes route-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 1320px) {
  .header-links { display: none; }
  .header-inner { grid-template-columns: auto 1fr auto; }
  .menu-button { display: block; }
  .page-layout { grid-template-columns: 1fr; }
  .chapter-rail {
    position: fixed;
    top: var(--header-h);
    left: 0;
    bottom: 0;
    z-index: 95;
    width: min(380px, 92vw);
    height: auto;
    padding: 28px;
    color: var(--white);
    background: var(--navy-deep);
    border: 0;
    transform: translateX(-105%);
    transition: transform .28s ease;
  }
  .menu-open .chapter-rail { transform: translateX(0); }
  .menu-open { overflow: hidden; }
  .chapter-rail .rail-head, .chapter-rail .rail-foot { color: rgba(255,255,255,.68); }
  .chapter-rail .side-link .side-index { color: rgba(255,255,255,.62); }
  .chapter-rail .side-link { color: rgba(255,255,255,.86); }
  .chapter-rail .side-link.active { color: white; }
  .drawer-backdrop {
    position: fixed;
    inset: var(--header-h) 0 0;
    z-index: 90;
    background: rgba(4,20,28,.62);
  }
  .hero { grid-template-columns: 1fr; }
  .hero-copy > p { max-width: 720px; }
  .role-guide { min-height: 0; }
}

@media (max-width: 760px) {
  :root { --header-h: 70px; }
  .header-inner, .page-layout { width: min(100% - 28px, 1480px); gap: 0; }
  .brand-copy small, .search-trigger span, .search-trigger kbd { display: none; }
  .search-trigger { min-width: 44px; width: 44px; height: 42px; justify-content: center; padding: 0; }
  .hero { padding: 60px 0 76px; gap: 42px; }
  .hero-copy { padding-top: 0; }
  .hero h1 { font-size: clamp(44px, 14vw, 62px); }
  .hero-copy > p { font-size: 17px; }
  .role-guide { margin: 0 -14px; padding: 28px 22px 30px; }
  .role-guide-head { display: block; }
  .route-time { display: inline-block; margin-top: 14px; }
  .role-tabs { gap: 18px; overflow-x: auto; }
  .role-tab { white-space: nowrap; font-size: 14px; }
  .working-rule { grid-template-columns: 1fr; gap: 10px; }
  .working-rule p { font-size: 18px; }
  .status-section { margin: 0 -14px 90px; padding: 58px 22px 54px; }
  .signal-legend { grid-template-columns: 1fr 1fr; }
  .signal-legend > div { min-height: 135px; border-bottom: 1px solid var(--line); }
  .signal-legend > div:nth-child(2) { border-right: 0; }
  .signal-legend > div:first-child { padding-left: 24px; }
  .status-row, .plain-note { grid-template-columns: 1fr; gap: 6px; }
  .guide-section { padding: 62px 0 82px; }
  .guide-heading { grid-template-columns: 52px 1fr; gap: 14px; }
  .chapter-number { width: 42px; }
  .instruction-flow { grid-template-columns: 1fr; gap: 26px; }
  .figure-caption { grid-template-columns: 1fr; }
  .privacy-note { white-space: normal; }
  .footer { display: grid; gap: 24px; }
  .footer div { align-items: flex-start; }
}

@media (max-width: 460px) {
  .chapter-rail { width: 100vw; padding: 24px 20px; }
  .brand-copy strong { font-size: 13px; }
  .brand-mark { width: 40px; height: 40px; }
  .signal-legend { grid-template-columns: 1fr; }
  .signal-legend > div, .signal-legend > div:nth-child(2) { border-right: 0; }
  .guide-heading { grid-template-columns: 1fr; }
  .chapter-number { margin-bottom: 4px; }
}