/* The guide follows the platform's CU tokens and the approved Figma blocks. */
.signal-guide {
  --guide-green-line: #b7dfc5;
  --guide-red-line: #eab7b7;
  width: min(var(--cu-page, 1060px), calc(100% - 48px));
  margin: 0 auto;
  padding: 48px 0 56px;
  color: var(--cu-ink, #111318);
  font-family: var(--cu-font);
  font-size: 15px;
  line-height: 1.65;
}
.signal-guide *, .signal-guide *::before, .signal-guide *::after { box-sizing: border-box; }
.signal-guide p, .signal-guide h1, .signal-guide h2, .signal-guide h3,
.signal-guide ul, .signal-guide ol, .signal-guide figure { margin: 0; }
.signal-guide a:focus-visible { outline: 3px solid var(--cu-blue); outline-offset: 4px; border-radius: 4px; }
.signal-guide__intro { padding: 0 0 32px; }
.signal-guide__intro .signal-guide__button { margin-top: 20px; }
.signal-guide__eyebrow { color: var(--cu-blue); font-size: 12px; font-weight: 600; letter-spacing: .03em; margin-bottom: 10px !important; }
.signal-guide h1 { font-size: clamp(28px, 3.4vw, 38px); font-weight: 700; letter-spacing: -.035em; line-height: 1.18; }
.signal-guide__lead { color: #59616e; font-size: 16px; line-height: 1.65; margin-top: 16px !important; }
.signal-guide__sections { min-width: 0; display: flex; flex-direction: column; gap: 18px; }
.signal-guide__section { padding: 30px; border: 1px solid #eceef2; border-radius: var(--cu-r, 12px); background: #fff; scroll-margin-top: 28px; }
.signal-guide__section-heading { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.signal-guide__number { display: grid; place-items: center; flex: 0 0 30px; height: 30px; background: var(--cu-surface); border-radius: 8px; color: #6b7280; font-size: 11px; font-weight: 600; font-variant-numeric: tabular-nums; }
.signal-guide h2 { font-size: 22px; line-height: 1.3; font-weight: 650; letter-spacing: -.025em; }
.signal-guide h3 { font-size: 15px; line-height: 1.4; font-weight: 600; letter-spacing: -.018em; }
.signal-guide strong { font-weight: 600; }
.signal-guide__text { color: #454d59; }
.signal-guide__text + .signal-guide__text { margin-top: 14px; }
.signal-guide__comparison { display: grid; grid-template-columns: .91fr 1.03fr; grid-template-rows: auto repeat(3, minmax(40px, auto)); gap: 14px 18px; margin-top: 24px; }
.signal-guide__examples { display: grid; grid-row: span 4; grid-template-rows: subgrid; padding: 16px; border: 1px solid; border-radius: 10px; }
.signal-guide__examples--yes { border-color: var(--guide-green-line); }
.signal-guide__examples--no { border-color: var(--guide-red-line); }
.signal-guide__examples h3 { align-self: start; }
.signal-guide__examples ul { list-style: none; padding: 0; display: contents; }
.signal-guide__examples li { display: flex; align-items: center; gap: 10px; min-height: 40px; }
.signal-guide__examples img { flex: 0 0 20px; max-width: none; }
.signal-guide__examples p { font-size: 13px; line-height: 1.5; }
.signal-guide__examples p span { white-space: normal; }
.signal-guide__note { padding: 16px; margin-top: 16px; border-radius: 10px; background: #f6f7f8; font-size: 13px; line-height: 1.6; color: #454d59; }
.signal-guide__note p + p { margin-top: 4px; }
.signal-guide__rules { list-style: none; padding: 0; display: grid; gap: 14px; margin-top: 20px !important; color: #454d59; }
.signal-guide__rules li { padding-left: 18px; position: relative; }
.signal-guide__rules li::before { content: ""; position: absolute; left: 0; top: 10px; width: 5px; height: 5px; border-radius: 50%; background: #87909e; }
.signal-guide__rules strong { color: var(--cu-ink); }
.signal-guide__warning { background: #fff4c7; border-left: 5px solid #da4646; border-radius: 12px; padding: 22px 24px; margin-top: 24px; color: #493e2b; }
.signal-guide__warning h3 { color: #332b1c; margin-bottom: 12px; }
.signal-guide__warning p { font-size: 14px; line-height: 1.6; }
.signal-guide__warning .signal-guide__warning-footnote { color: #62533b; font-size: 13px; margin-top: 12px; }
.signal-guide__tag { margin-left: auto; color: #51749e; background: #f1f6ff; border-radius: 6px; padding: 3px 8px; font-size: 11px; white-space: nowrap; }
.signal-guide__ending { padding: 14px 0; display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.signal-guide__ending p { width: 100%; font-weight: 600; }
.signal-guide .signal-guide__button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 11px 18px; border-radius: 8px; background: var(--cu-blue); color: #fff; font-size: 13px; font-weight: 600; text-decoration: none; }
.signal-guide .signal-guide__button:hover { background: var(--cu-blue-dk); text-decoration: none; }
.signal-guide__top-link { margin-left: auto; color: var(--cu-muted); font-size: 12px; }

/* Centered status diagrams reuse the original Figma arrow assets. */
.signal-flow { margin-top: 24px !important; }
.signal-flow figcaption { color: #6b7280; font-size: 12px; font-weight: 500; margin-bottom: 16px; text-align: center; }
.signal-flow__diagram { display: grid; grid-template-columns: 180px 32px 250px 32px 132px; grid-template-areas: "collecting forward working split outcomes"; width: 626px; margin: 0 auto; align-items: center; position: relative; }
.signal-flow__state { padding: 16px; border: 1px solid; border-radius: 10px; min-width: 0; }
.signal-guide .signal-flow__state h3 { font-size: 16px; line-height: 22px; color: #232931; }
.signal-flow__state p { font-size: 12px; line-height: 17px; color: #3b424b; margin-top: 8px; }
.signal-flow__state--collecting { grid-area: collecting; min-height: 149px; background: #f6f8fa; border-color: #dce1e7; }
.signal-flow__state--working { grid-area: working; min-height: 149px; background: #fff7ea; border-color: #e9cca1; }
.signal-flow__outcomes { grid-area: outcomes; display: grid; gap: 16px; text-align: center; }
.signal-flow__state--done { background: #f0faf3; border-color: var(--guide-green-line); }
.signal-flow__state--rejected { background: #fff4f4; border-color: var(--guide-red-line); }
.signal-flow__connector { width: 32px; height: 149px; }
.signal-flow__connector img { width: 32px; height: 149px; max-width: none; display: block; }
.signal-flow__connector--forward { grid-area: forward; }
.signal-flow__connector--outcomes { grid-area: split; }
.signal-flow--lms .signal-flow__diagram { grid-template-areas: "collecting forward working split outcomes" ". . optional . ."; row-gap: 44px; }
.signal-flow__optional { grid-area: optional; }
.signal-flow__state--participants { min-height: 98px; background: #f1f6ff; border-color: #bdd1ef; }
.signal-flow__branch-label { position: absolute; left: 40px; top: 177px; width: 156px; font-size: 12px; line-height: 17px; color: #51749e; }
.signal-flow__mobile-label, .signal-flow__optional-arrow { display: none; }
.signal-flow__branch-art { position: absolute; top: 0; left: 0; width: 626px; height: 291px; overflow: hidden; pointer-events: none; }
.signal-flow__branch-art img { position: absolute; top: 0; left: 0; width: 677px; height: 291px; max-width: none; }

@media (max-width: 1050px) {
  .signal-guide__section { padding: 28px; }
}

/* Phone layouts keep all text readable and express the same optional route. */
@media (max-width: 800px) {
  .signal-guide { width: calc(100% - 32px); padding-top: 28px; }
  .signal-guide__section { padding: 22px; }
  .signal-guide__comparison { gap: 14px; }
  .signal-guide__examples { display: grid; grid-row: span 4; grid-template-rows: subgrid; padding: 14px; }
  .signal-guide__examples p { font-size: 14px; }
  .signal-flow__diagram, .signal-flow--lms .signal-flow__diagram { width: 100%; grid-template-columns: minmax(0, 1fr); grid-template-areas: "collecting" "forward" "working" "split" "outcomes"; row-gap: 0; }
  .signal-flow--lms .signal-flow__diagram { grid-template-areas: "collecting" "optional" "forward" "working" "split" "outcomes"; }
  .signal-flow__state--collecting, .signal-flow__state--working, .signal-flow__state--participants { min-height: 0; }
  .signal-flow__state p { font-size: 14px; line-height: 1.6; }
  .signal-flow__connector { width: 100%; height: 32px; position: relative; }
  .signal-flow__connector img, .signal-flow__branch-art { display: none; }
  .signal-flow__connector::before { content: ""; position: absolute; height: 28px; width: 1px; background: #8a939f; left: 50%; top: 0; }
  .signal-flow__connector::after { content: ""; position: absolute; width: 7px; height: 7px; border-right: 1.5px solid #8a939f; border-bottom: 1.5px solid #8a939f; transform: rotate(45deg); left: calc(50% - 3px); bottom: 4px; }
  .signal-flow__outcomes { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .signal-flow__connector--outcomes { height: 40px; }
  .signal-flow__connector--outcomes::before { top: 0; height: 17px; }
  .signal-flow__connector--outcomes::after { width: 50%; height: 22px; top: 16px; left: 25%; transform: none; border-top: 1px solid #8a939f; border-left: 1px solid #8a939f; border-right: 1px solid #8a939f; border-bottom: 0; }
  .signal-flow__optional { margin: 0 0 0 8px; padding: 16px 0 0 20px; }
  .signal-flow__branch-label::before { content: ""; position: absolute; left: -20px; top: -16px; height: calc(100% + 26px); border-left: 1px dashed #6e94c3; }
  .signal-flow__state--participants { position: relative; }
  .signal-flow__state--participants::before { content: ""; position: absolute; left: -21px; top: -1px; height: calc(50% + 1px); border-left: 1px dashed #6e94c3; }
  .signal-flow__state--participants::after { content: ""; position: absolute; left: -21px; top: 50%; width: 20px; border-top: 1px dashed #6e94c3; }
  .signal-flow__optional-arrow { display: block; position: absolute; left: -7px; top: calc(50% - 3px); width: 7px; height: 7px; border-top: 1.5px solid #6e94c3; border-right: 1.5px solid #6e94c3; transform: rotate(45deg); }
  .signal-flow__branch-label { position: relative; left: auto; top: auto; width: auto; font-size: 13px; line-height: 1.5; margin-bottom: 10px !important; }
  .signal-flow__mobile-label { display: block; font-size: 11px; font-weight: 600; margin-bottom: 3px; }
}

@media (max-width: 540px) {
  .signal-guide { width: calc(100% - 24px); padding: 26px 0 36px; font-size: 15px; }
  .signal-guide__intro { padding: 0 6px 22px; }
  .signal-guide__lead { font-size: 15px; }
  .signal-guide__desktop-break { display: none; }
  .signal-guide__section { padding: 20px 16px; scroll-margin-top: 16px; }
  .signal-guide__section-heading { gap: 9px; flex-wrap: wrap; margin-bottom: 16px; }
  .signal-guide h2 { font-size: 20px; }
  .signal-guide__comparison { grid-template-columns: minmax(0, 1fr); grid-template-rows: none; margin-top: 20px; }
  .signal-guide__examples { display: block; grid-row: auto; }
  .signal-guide__examples h3 { min-height: 0; margin-bottom: 14px; }
  .signal-guide__examples ul { display: grid; gap: 16px; }
  .signal-guide__examples li { min-height: 0; }
  .signal-guide__examples img { align-self: flex-start; margin-top: 2px; }
  .signal-guide__note { font-size: 14px; }
  .signal-guide__warning { padding: 18px 16px; }
  .signal-guide__tag { margin-left: auto; }
  .signal-guide__ending { padding: 12px 6px; }
  .signal-guide .signal-guide__button { font-size: 14px; }
  .signal-flow__state { padding: 16px; }
  .signal-guide .signal-flow__state h3 { font-size: 16px; }
  .signal-flow__outcomes .signal-flow__state { padding: 14px 10px; text-align: center; }
}

@media print {
  .signal-guide__ending, .main-bar, footer { display: none !important; }
  .signal-guide { width: 100%; padding: 0; }
  .signal-guide__section { break-inside: avoid; }
}