/**
 * Signal Desk — AI-curated OSINT / independent research feed
 */

.signal-desk {
  --signal-accent: var(--ratio-accent);
  --signal-warn: var(--memoria-accent);
  --signal-alert: var(--imaginatio-accent);
}

.signal-desk .page-intro {
  position: relative;
  max-width: 48rem;
}

.signal-masthead {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 1.75rem;
  padding: 1.5rem 0 1.75rem;
  border-bottom: 1px solid var(--color-panel-outline);
}

.signal-masthead__brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0;
  background: linear-gradient(
    120deg,
    var(--color-text) 0%,
    color-mix(in srgb, var(--signal-accent) 75%, var(--color-text)) 55%,
    var(--color-text) 100%
  );
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: signal-brand-shift 14s ease-in-out infinite;
}

@keyframes signal-brand-shift {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

.signal-masthead__row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  align-items: center;
}

.signal-handle {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--signal-accent);
  letter-spacing: 0.04em;
}

.signal-status {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.signal-status__dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--cipher-accent);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--cipher-accent) 55%, transparent);
  animation: signal-pulse 2.4s ease-out infinite;
}

@keyframes signal-pulse {
  0% {
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--cipher-accent) 45%, transparent);
  }
  70% {
    box-shadow: 0 0 0 0.55rem transparent;
  }
  100% {
    box-shadow: 0 0 0 0 transparent;
  }
}

.signal-lede {
  margin: 0;
  max-width: 40rem;
  color: color-mix(in srgb, var(--color-text) 88%, var(--color-muted));
  font-size: 1.05rem;
}

.signal-layout {
  display: grid;
  gap: 2rem;
}

@media (min-width: 960px) {
  .signal-layout {
    grid-template-columns: minmax(0, 1fr) 17.5rem;
    align-items: start;
  }
}

.signal-toolbar {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.signal-search {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--color-panel-outline);
  border-radius: 0.55rem;
  background: color-mix(in srgb, var(--color-surface) 92%, transparent);
  color: var(--color-text);
  font: inherit;
}

.signal-search:focus {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.signal-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.signal-filters .filter-button {
  font-size: 0.82rem;
}

.signal-count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-muted);
  letter-spacing: 0.04em;
}

.signal-feed {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.signal-post {
  position: relative;
  padding: 1.25rem 1.2rem 1.35rem;
  border: 1px solid var(--color-panel-outline);
  border-radius: 0.2rem;
  background:
    linear-gradient(
      165deg,
      color-mix(in srgb, var(--color-surface) 94%, var(--signal-accent)) 0%,
      var(--color-surface) 42%
    );
  opacity: 0;
  transform: translateY(0.7rem);
  animation: signal-post-in 0.55s ease forwards;
}

.signal-post:nth-child(1) {
  animation-delay: 0.05s;
}
.signal-post:nth-child(2) {
  animation-delay: 0.1s;
}
.signal-post:nth-child(3) {
  animation-delay: 0.15s;
}
.signal-post:nth-child(4) {
  animation-delay: 0.2s;
}
.signal-post:nth-child(5) {
  animation-delay: 0.25s;
}
.signal-post:nth-child(6) {
  animation-delay: 0.3s;
}
.signal-post:nth-child(7) {
  animation-delay: 0.35s;
}

@keyframes signal-post-in {
  to {
    opacity: 1;
    transform: none;
  }
}

.signal-post__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.75rem;
  align-items: center;
  margin-bottom: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.signal-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.18rem 0.45rem;
  border: 1px solid color-mix(in srgb, var(--signal-accent) 35%, var(--color-panel-outline));
  border-radius: 0.2rem;
  color: var(--signal-accent);
  background: color-mix(in srgb, var(--signal-accent) 10%, transparent);
}

.signal-chip--confidence {
  border-color: color-mix(in srgb, var(--signal-warn) 40%, var(--color-panel-outline));
  color: var(--signal-warn);
  background: color-mix(in srgb, var(--signal-warn) 10%, transparent);
}

.signal-post h2 {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.4vw, 1.55rem);
  line-height: 1.25;
  margin: 0 0 0.65rem;
  letter-spacing: -0.02em;
}

.signal-post__lede {
  margin: 0 0 1rem;
  color: color-mix(in srgb, var(--color-text) 90%, var(--color-muted));
}

.signal-section-label {
  margin: 0 0 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.signal-post__assessment,
.signal-post__questions {
  margin: 0 0 1rem;
  padding-left: 1.1rem;
}

.signal-post__assessment li,
.signal-post__questions li {
  margin-bottom: 0.45rem;
}

.signal-claims {
  display: grid;
  gap: 0.55rem;
  margin: 0 0 1rem;
}

.signal-claim {
  padding: 0.65rem 0.75rem;
  border-left: 2px solid color-mix(in srgb, var(--signal-accent) 55%, transparent);
  background: color-mix(in srgb, var(--color-bg) 55%, transparent);
}

.signal-claim__status {
  display: block;
  margin-bottom: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--signal-warn);
}

.signal-claim p {
  margin: 0;
  font-size: 0.95rem;
}

.signal-claim__notes {
  margin-top: 0.35rem !important;
  color: var(--color-muted);
  font-size: 0.88rem !important;
}

.signal-sources {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.signal-sources a {
  font-size: 0.92rem;
}

.signal-tier {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-right: 0.35rem;
}

.signal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.signal-tags li {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--color-muted);
  padding: 0.15rem 0.4rem;
  border: 1px solid var(--color-panel-outline);
  border-radius: 0.15rem;
}

.signal-rail {
  display: grid;
  gap: 1rem;
}

.signal-panel {
  padding: 1rem 1rem 1.1rem;
  border: 1px solid var(--color-panel-outline);
  border-radius: 0.2rem;
  background: color-mix(in srgb, var(--color-surface) 90%, transparent);
}

.signal-panel h3 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: -0.01em;
}

.signal-panel p,
.signal-panel li {
  font-size: 0.88rem;
  color: color-mix(in srgb, var(--color-text) 88%, var(--color-muted));
}

.signal-panel ol,
.signal-panel ul {
  margin: 0;
  padding-left: 1.1rem;
}

.signal-desk-stat {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid color-mix(in srgb, var(--color-panel-outline) 70%, transparent);
  font-size: 0.86rem;
}

.signal-desk-stat:last-child {
  border-bottom: 0;
}

.signal-desk-stat strong {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--signal-accent);
}

.signal-seed-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.signal-seed-list a {
  font-size: 0.84rem;
  line-height: 1.35;
}

.signal-seed-list span {
  display: block;
  margin-top: 0.15rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.signal-empty {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--color-muted);
  border: 1px dashed var(--color-panel-outline);
}

@media (prefers-reduced-motion: reduce) {
  .signal-masthead__brand,
  .signal-status__dot,
  .signal-post {
    animation: none;
  }

  .signal-post {
    opacity: 1;
    transform: none;
  }
}