:root {
  --trace-bg: #020607;
  --trace-panel: rgba(3, 11, 13, 0.9);
  --trace-panel-soft: rgba(5, 16, 18, 0.72);
  --trace-cyan: #5be3ff;
  --trace-cyan-soft: #b9f5ff;
  --trace-cyan-dim: rgba(91, 227, 255, 0.18);
  --trace-amber: #e5bd72;
  --trace-amber-soft: #f2d69d;
  --trace-green: #8ee89e;
  --trace-muted: #789296;
  --trace-border: rgba(91, 227, 255, 0.18);
  --trace-grid: rgba(91, 227, 255, 0.045);
}

body[data-observer-id="traceroute-to-nowhere"] {
  background:
    radial-gradient(circle at 50% -10%, rgba(91, 227, 255, 0.08), transparent 32rem),
    #010405;
}

body[data-observer-id="traceroute-to-nowhere"] .content {
  max-width: 1480px;
}

.trace-page {
  min-height: 100vh;
}

.trace-topbar {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin: 1.7rem 0 2.8rem;
}

.trace-back {
  border: 1px solid rgba(91, 227, 255, 0.24);
  color: var(--trace-cyan);
  display: inline-block;
  font-size: 0.67rem;
  letter-spacing: 0.06em;
  padding: 0.42rem 0.64rem;
  text-decoration: none;
  text-transform: uppercase;
}

.trace-back:hover,
.trace-back:focus-visible {
  background: rgba(91, 227, 255, 0.07);
  border-color: rgba(91, 227, 255, 0.58);
}

.trace-language {
  align-items: center;
  background: rgba(3, 10, 12, 0.9);
  border: 1px solid rgba(91, 227, 255, 0.22);
  display: inline-flex;
  font-size: 0.66rem;
  gap: 0.48rem;
  letter-spacing: 0.08em;
  padding: 0.38rem 0.58rem;
}

.trace-language a {
  color: var(--trace-muted);
  text-decoration: none;
}

.trace-language a[aria-current="page"] {
  color: var(--trace-cyan);
}

.trace-language a:hover,
.trace-language a:focus-visible {
  color: var(--trace-cyan-soft);
}

.trace-hero {
  border-bottom: 1px solid var(--trace-border);
  display: grid;
  gap: 1.4rem;
  grid-template-columns: minmax(0, 1fr) auto;
  margin-bottom: 2.4rem;
  padding: 0 0 1.5rem;
}

.trace-eyebrow,
.trace-section-index,
.trace-terminal-label {
  color: var(--trace-cyan);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.trace-hero h1 {
  color: #e5fbff;
  font-size: clamp(2rem, 5.4vw, 4.9rem);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.96;
  margin: 0.55rem 0 0.9rem;
  text-shadow: 0 0 28px rgba(91, 227, 255, 0.14);
}

.trace-hero-copy {
  color: #9db2b6;
  font-size: clamp(0.78rem, 1.4vw, 0.94rem);
  line-height: 1.7;
  margin: 0;
  max-width: 72ch;
}

.trace-hero-mark {
  align-items: center;
  border: 1px solid rgba(229, 189, 114, 0.26);
  display: flex;
  justify-content: center;
  min-height: 118px;
  min-width: 190px;
  overflow: hidden;
  position: relative;
}

.trace-hero-mark::before,
.trace-hero-mark::after {
  content: "";
  position: absolute;
}

.trace-hero-mark::before {
  background: linear-gradient(90deg, transparent, rgba(91, 227, 255, 0.22), transparent);
  height: 1px;
  left: 0;
  right: 0;
  top: 50%;
}

.trace-hero-mark::after {
  animation: trace-hero-scan 3.6s linear infinite;
  background: linear-gradient(90deg, transparent, var(--trace-cyan), transparent);
  height: 1px;
  left: -55%;
  top: 50%;
  width: 45%;
}

.trace-hero-mark strong {
  color: var(--trace-amber-soft);
  font-size: 2.4rem;
  font-weight: 300;
  letter-spacing: 0.08em;
  position: relative;
  text-shadow: 0 0 18px rgba(229, 189, 114, 0.35);
  z-index: 2;
}

@keyframes trace-hero-scan {
  to { transform: translateX(450%); }
}

.trace-loading {
  border-left: 2px solid var(--trace-cyan);
  color: var(--trace-muted);
  margin: 2rem 0;
  padding: 0.7rem 0.9rem;
}

.trace-shell {
  display: grid;
  gap: 1.4rem;
}

.trace-section {
  background:
    linear-gradient(180deg, rgba(91, 227, 255, 0.018), transparent 42%),
    var(--trace-panel);
  border: 1px solid var(--trace-border);
  position: relative;
}

.trace-section::before {
  background: linear-gradient(90deg, var(--trace-cyan), transparent 70%);
  content: "";
  height: 1px;
  left: 0;
  opacity: 0.68;
  position: absolute;
  top: -1px;
  width: min(340px, 42%);
}

.trace-section-inner {
  padding: clamp(1rem, 2.5vw, 1.7rem);
}

.trace-section-head {
  align-items: end;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}

.trace-section-head h2 {
  color: var(--trace-cyan-soft);
  font-size: clamp(1.12rem, 2.1vw, 1.55rem);
  font-weight: 400;
  letter-spacing: 0.035em;
  margin: 0.22rem 0 0;
}

.trace-section-head p {
  color: var(--trace-muted);
  font-size: 0.62rem;
  line-height: 1.55;
  margin: 0;
  max-width: 48ch;
  text-align: right;
}

.trace-current-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(230px, 0.72fr) minmax(0, 2fr);
}

.trace-readout {
  background:
    repeating-linear-gradient(0deg, transparent 0 25px, rgba(91, 227, 255, 0.025) 25px 26px),
    rgba(2, 8, 9, 0.85);
  border: 1px solid rgba(91, 227, 255, 0.15);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 340px;
  padding: 1.2rem;
}

.trace-primary-label {
  color: var(--trace-muted);
  font-size: 0.62rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.trace-primary-value {
  color: #e2fbff;
  display: block;
  font-size: clamp(4.2rem, 10vw, 8.7rem);
  font-weight: 300;
  letter-spacing: -0.08em;
  line-height: 0.8;
  margin: 1.2rem 0 0.8rem;
  text-shadow: 0 0 30px rgba(91, 227, 255, 0.22);
}

.trace-primary-unit {
  color: var(--trace-cyan);
  font-size: 0.64rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.trace-updated {
  border-top: 1px solid rgba(91, 227, 255, 0.11);
  color: #9eb5b9;
  font-size: 0.63rem;
  line-height: 1.55;
  margin: 1.2rem 0 0;
  padding-top: 0.8rem;
}

.trace-array {
  background:
    linear-gradient(var(--trace-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--trace-grid) 1px, transparent 1px),
    #020708;
  background-size: 38px 38px;
  border: 1px solid rgba(91, 227, 255, 0.15);
  min-height: 340px;
  overflow: hidden;
  padding: 1rem;
  position: relative;
}

.trace-array::after {
  background: linear-gradient(180deg, transparent, rgba(229, 189, 114, 0.16), transparent);
  bottom: 0;
  content: "";
  position: absolute;
  right: 16%;
  top: 0;
  width: 1px;
}

.trace-array-labels {
  display: grid;
  grid-template-columns: 90px 1fr 120px;
  margin-bottom: 0.55rem;
  position: relative;
  z-index: 2;
}

.trace-array-labels span {
  color: var(--trace-muted);
  font-size: 0.5rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.trace-array-labels span:nth-child(2) { text-align: center; }
.trace-array-labels span:nth-child(3) { color: var(--trace-amber); text-align: right; }

.trace-lanes {
  display: grid;
  gap: 0.52rem;
  position: relative;
  z-index: 2;
}

.trace-lane {
  align-items: center;
  display: grid;
  gap: 0.55rem;
  grid-template-columns: 74px minmax(0, 1fr) 96px;
  min-height: 30px;
}

.trace-lane-id {
  color: #9eb5b9;
  font-size: 0.58rem;
  letter-spacing: 0.08em;
}

.trace-lane-track {
  background: rgba(91, 227, 255, 0.055);
  height: 1px;
  overflow: visible;
  position: relative;
}

.trace-lane-track::before {
  background: linear-gradient(90deg, rgba(91, 227, 255, 0.05), rgba(91, 227, 255, 0.56) 72%, rgba(229, 189, 114, 0.46));
  content: "";
  inset: 0;
  position: absolute;
}

.trace-lane-pulse {
  animation: trace-pulse 3.2s linear infinite;
  animation-delay: calc(var(--lane-index) * -0.31s);
  background: var(--trace-cyan-soft);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--trace-cyan), 0 0 14px rgba(91, 227, 255, 0.5);
  height: 5px;
  left: 0;
  position: absolute;
  top: -2px;
  width: 5px;
}

.trace-lane-track::after {
  border: 1px solid rgba(229, 189, 114, 0.72);
  border-radius: 50%;
  content: "";
  height: 7px;
  position: absolute;
  right: -4px;
  top: -4px;
  width: 7px;
}

.trace-lane-end {
  color: var(--trace-amber-soft);
  font-size: 0.5rem;
  letter-spacing: 0.08em;
  text-align: right;
  text-transform: uppercase;
}

@keyframes trace-pulse {
  0% { opacity: 0; transform: translateX(0); }
  8% { opacity: 1; }
  82% { opacity: 1; }
  100% { opacity: 0; transform: translateX(var(--pulse-distance, 420px)); }
}

.trace-boundary {
  align-items: center;
  background: linear-gradient(90deg, rgba(229, 189, 114, 0.02), rgba(229, 189, 114, 0.08));
  border-left: 1px solid rgba(229, 189, 114, 0.3);
  bottom: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  pointer-events: none;
  position: absolute;
  right: 0;
  top: 0;
  width: 16%;
  z-index: 1;
}

.trace-boundary strong {
  color: rgba(242, 214, 157, 0.85);
  font-size: clamp(1.6rem, 4vw, 3.2rem);
  font-weight: 300;
}

.trace-boundary span {
  color: rgba(229, 189, 114, 0.55);
  font-size: 0.44rem;
  letter-spacing: 0.13em;
  margin-top: 0.5rem;
  text-align: center;
  text-transform: uppercase;
}

.trace-array-note {
  color: var(--trace-muted);
  font-size: 0.54rem;
  line-height: 1.5;
  margin: 0.8rem 0 0;
}

.trace-facts {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 1rem;
}

.trace-fact {
  background: var(--trace-panel-soft);
  border-left: 1px solid rgba(91, 227, 255, 0.22);
  min-width: 0;
  padding: 0.72rem;
}

.trace-fact span {
  color: var(--trace-muted);
  display: block;
  font-size: 0.5rem;
  letter-spacing: 0.08em;
  margin-bottom: 0.3rem;
  text-transform: uppercase;
}

.trace-fact strong {
  color: #d5eef2;
  display: block;
  font-size: 0.72rem;
  font-weight: 400;
  overflow-wrap: anywhere;
}

.trace-fact.is-unknown {
  border-left-color: rgba(229, 189, 114, 0.48);
}

.trace-fact.is-unknown strong { color: var(--trace-amber-soft); }

.trace-history-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 2fr) minmax(230px, 0.72fr);
}

.trace-carrier {
  background:
    linear-gradient(180deg, rgba(91, 227, 255, 0.025), transparent),
    #020708;
  border: 1px solid rgba(91, 227, 255, 0.14);
  min-height: 260px;
  overflow: hidden;
  padding: 1rem;
  position: relative;
}

.trace-carrier::before {
  background: linear-gradient(90deg, transparent, rgba(91, 227, 255, 0.11), transparent);
  content: "";
  height: 100%;
  left: 50%;
  position: absolute;
  top: 0;
  width: 1px;
}

.trace-carrier-range {
  align-items: center;
  display: flex;
  gap: 0.6rem;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.trace-carrier-range span {
  color: var(--trace-muted);
  font-size: 0.53rem;
}

.trace-carrier-strip {
  align-items: end;
  display: grid;
  gap: 2px;
  grid-auto-flow: column;
  grid-auto-columns: minmax(2px, 1fr);
  height: 126px;
  overflow: hidden;
  position: relative;
}

.trace-carrier-point {
  background: rgba(91, 227, 255, 0.72);
  box-shadow: 0 0 5px rgba(91, 227, 255, 0.22);
  height: var(--carrier-height, 58%);
  min-width: 2px;
  opacity: var(--carrier-opacity, 0.75);
}

.trace-carrier-point.is-gap {
  background: repeating-linear-gradient(135deg, rgba(229, 189, 114, 0.36) 0 2px, transparent 2px 4px);
  box-shadow: none;
  height: 22%;
}

.trace-carrier-line {
  border-top: 1px dashed rgba(91, 227, 255, 0.18);
  bottom: 28%;
  left: 0;
  position: absolute;
  right: 0;
}

.trace-carrier-caption {
  color: var(--trace-muted);
  font-size: 0.56rem;
  line-height: 1.55;
  margin: 0.9rem 0 0;
}

.trace-history-stats {
  display: grid;
  gap: 0.55rem;
}

.trace-history-stat {
  background: rgba(91, 227, 255, 0.018);
  border: 1px solid rgba(91, 227, 255, 0.1);
  padding: 0.72rem 0.8rem;
}

.trace-history-stat span {
  color: var(--trace-muted);
  display: block;
  font-size: 0.5rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.trace-history-stat strong {
  color: var(--trace-cyan-soft);
  display: block;
  font-size: 1.25rem;
  font-weight: 300;
  margin-top: 0.25rem;
}

.trace-history-summary {
  border-left: 2px solid var(--trace-cyan);
  color: #9fb6ba;
  font-size: 0.63rem;
  line-height: 1.6;
  margin: 0.85rem 0 0;
  padding-left: 0.7rem;
}

.trace-evidence-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.trace-evidence-card {
  background: rgba(2, 8, 9, 0.8);
  border: 1px solid rgba(91, 227, 255, 0.13);
  min-height: 190px;
  padding: 1rem;
}

.trace-evidence-card[data-kind="derived"] { border-color: rgba(142, 232, 158, 0.22); }
.trace-evidence-card[data-kind="unknown"] { border-color: rgba(229, 189, 114, 0.28); }

.trace-evidence-card h2 {
  color: var(--trace-cyan-soft);
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  margin: 0 0 0.8rem;
  text-transform: uppercase;
}

.trace-evidence-card[data-kind="derived"] h2 { color: var(--trace-green); }
.trace-evidence-card[data-kind="unknown"] h2 { color: var(--trace-amber-soft); }

.trace-evidence-card ul {
  color: #99afb3;
  font-size: 0.63rem;
  line-height: 1.65;
  margin: 0;
  padding-left: 1.15rem;
}

.trace-method-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.trace-method-block {
  border-top: 1px solid rgba(91, 227, 255, 0.14);
  padding-top: 0.9rem;
}

.trace-method-block h2 {
  color: var(--trace-cyan-soft);
  font-size: 0.9rem;
  font-weight: 400;
  margin: 0 0 0.65rem;
}

.trace-method-block p,
.trace-method-block li {
  color: #96adb1;
  font-size: 0.63rem;
  line-height: 1.7;
}

.trace-method-block p { margin: 0; }
.trace-method-block ul { margin: 0; padding-left: 1.1rem; }

.trace-source-link {
  color: var(--trace-cyan);
  text-decoration: none;
}

.trace-source-link:hover,
.trace-source-link:focus-visible { text-decoration: underline; }

.trace-archive {
  border-top: 1px solid rgba(91, 227, 255, 0.12);
  margin-top: 1rem;
  padding-top: 0.9rem;
}

.trace-archive summary {
  color: var(--trace-cyan);
  cursor: pointer;
  font-size: 0.64rem;
}

.trace-history-table-wrap {
  margin-top: 0.8rem;
  overflow-x: auto;
}

.trace-history-table {
  border-collapse: collapse;
  min-width: 32rem;
  width: 100%;
}

.trace-history-table th,
.trace-history-table td {
  border-bottom: 1px solid rgba(91, 227, 255, 0.1);
  font-size: 0.6rem;
  padding: 0.55rem;
  text-align: left;
}

.trace-history-table th {
  color: var(--trace-muted);
  font-weight: 400;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.trace-history-table td { color: #b7cdd1; }

.trace-footer-terminal {
  margin-top: 2.6rem;
}

@media (max-width: 1000px) {
  .trace-current-grid,
  .trace-history-grid {
    grid-template-columns: 1fr;
  }

  .trace-readout { min-height: 230px; }
  .trace-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .trace-topbar { align-items: flex-start; flex-direction: column; margin-top: 1rem; }
  .trace-hero { grid-template-columns: 1fr; }
  .trace-hero-mark { min-height: 92px; min-width: 0; }
  .trace-section-head { align-items: flex-start; flex-direction: column; }
  .trace-section-head p { text-align: left; }
  .trace-array-labels { grid-template-columns: 64px 1fr 72px; }
  .trace-lane { grid-template-columns: 52px minmax(0, 1fr) 64px; }
  .trace-lane-end { font-size: 0.42rem; }
  .trace-boundary { width: 19%; }
  .trace-array::after { right: 19%; }
  .trace-evidence-grid,
  .trace-method-grid { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .trace-facts { grid-template-columns: 1fr; }
  .trace-array { padding: 0.7rem; }
  .trace-array-labels span:nth-child(2) { display: none; }
  .trace-array-labels { grid-template-columns: 1fr auto; }
  .trace-lane { grid-template-columns: 44px minmax(0, 1fr) 56px; gap: 0.35rem; }
  .trace-lane-id { font-size: 0.49rem; }
  .trace-primary-value { font-size: 5rem; }
}

@media (prefers-reduced-motion: reduce) {
  .trace-hero-mark::after,
  .trace-lane-pulse { animation: none; }
  .trace-lane-pulse { left: 72%; opacity: 0.8; }
}