.ip-intro {
  position: relative;
  overflow-x: clip;
  background:
    linear-gradient(180deg, var(--color-bg-deep), var(--color-bg));
  border-bottom: 1px solid var(--color-border);
}

.ip-intro::after {
  position: absolute;
  right: var(--gutter);
  bottom: 0;
  left: var(--gutter);
  height: 1px;
  content: "";
  background: linear-gradient(90deg, var(--color-transparent), var(--color-accent), var(--color-transparent));
}

.ip-intro h1 {
  max-width: 780px;
}

.ip-intro .lead {
  margin-bottom: 0;
}

.ip-result-section {
  padding-top: clamp(48px, 7vw, 88px);
}

.ip-console {
  position: relative;
  max-width: 1040px;
  margin-inline: auto;
  padding: clamp(24px, 5vw, 48px);
  overflow: hidden;
  background:
    linear-gradient(135deg, var(--color-white-faint), var(--color-transparent)),
    var(--color-panel);
  border: 1px solid var(--color-border-bright);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-panel);
}

.ip-console::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: clamp(18px, 4vw, 38px);
  width: 1px;
  content: "";
  background: linear-gradient(var(--color-transparent), var(--color-accent-line), var(--color-transparent));
}

.ip-console-head {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding-left: clamp(14px, 3vw, 26px);
}

.ip-console-head h2 {
  margin-bottom: 0;
}

.lookup-pulse {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  background: var(--color-accent);
  border-radius: var(--radius-pill);
  box-shadow: 0 0 0 4px var(--color-accent-glass);
  animation: lookup-pulse var(--duration-pulse) ease-in-out infinite;
}

.lookup-state-success {
  color: var(--color-success);
  border-color: var(--color-success);
}

.lookup-state-success .lookup-pulse {
  background: var(--color-success);
  box-shadow: 0 0 0 4px var(--color-success-glass);
}

.lookup-state-error {
  color: var(--color-error);
  border-color: var(--color-error);
}

.lookup-state-error .lookup-pulse {
  background: var(--color-error);
  box-shadow: 0 0 0 4px var(--color-error-glass);
  animation: none;
}

.ip-result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 34px;
  margin-left: clamp(14px, 3vw, 26px);
  background: var(--color-bg-deep);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.ip-result-item {
  min-width: 0;
  min-height: 132px;
  margin: 0;
  padding: 22px;
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.ip-result-item:nth-child(even) {
  border-right: 0;
}

.ip-result-item:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.ip-result-item dt {
  margin-bottom: 16px;
  color: var(--color-text-dim);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 620;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.result-value {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--color-text);
  font-size: clamp(17px, 2.2vw, 22px);
  font-weight: 650;
  line-height: 1.4;
}

.result-ip {
  color: var(--color-accent-soft);
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.5vw, 34px);
  letter-spacing: -0.02em;
}

.result-value.is-muted {
  color: var(--color-text-dim);
  font-size: 17px;
  font-weight: 540;
}

.result-value.is-safe {
  color: var(--color-success);
}

.result-value.is-warn {
  color: var(--color-warn);
}

.ip-console-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
  margin-left: clamp(14px, 3vw, 26px);
}

.copy-feedback {
  min-height: 1.6em;
  margin: 10px 0 0 clamp(14px, 3vw, 26px);
  color: var(--color-text-dim);
  font-size: 13px;
}

.copy-buffer {
  position: fixed;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  opacity: 0;
  border: 0;
  pointer-events: none;
}

.explain-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.5fr);
  gap: clamp(42px, 8vw, 110px);
  align-items: start;
}

.explain-heading {
  position: sticky;
  top: var(--toc-offset);
}

.explain-flow {
  border-top: 1px solid var(--color-border);
}

.explain-entry {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: clamp(18px, 4vw, 34px);
  padding-top: 30px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--color-border);
}

.explain-marker {
  display: inline-flex;
  width: 58px;
  height: 34px;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-soft);
  background: var(--color-accent-glass);
  border: 1px solid var(--color-accent-line);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
}

.explain-entry h3 {
  margin-bottom: 8px;
  font-size: 22px;
}

.explain-entry p {
  margin-bottom: 0;
}

.dns-layout {
  max-width: 1060px;
  margin-inline: auto;
}

.dns-procedure {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  border-top: 1px solid var(--color-border-bright);
  border-left: 1px solid var(--color-border);
}

.dns-step {
  position: relative;
  min-width: 0;
  padding: clamp(24px, 4vw, 38px);
  background: var(--color-panel);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.dns-step::before {
  position: absolute;
  top: -1px;
  left: clamp(24px, 4vw, 38px);
  width: 48px;
  height: 2px;
  content: "";
  background: var(--color-accent);
}

.dns-step h3 {
  font-size: 21px;
}

.dns-step p {
  margin-bottom: 0;
}

.privacy-note {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 24px;
  padding: clamp(24px, 5vw, 42px);
  background:
    linear-gradient(110deg, var(--color-success-glass), var(--color-transparent)),
    var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.privacy-symbol {
  display: grid;
  width: 52px;
  height: 52px;
  flex: 0 0 auto;
  place-items: center;
  color: var(--color-success);
  background: var(--color-success-glass);
  border: 1px solid var(--color-success);
  border-radius: var(--radius-md);
}

.privacy-symbol svg {
  width: 28px;
  height: 28px;
}

.privacy-note h2 {
  margin-bottom: 10px;
  font-size: clamp(26px, 3vw, 36px);
}

.privacy-note p:last-child {
  margin-bottom: 0;
}

@keyframes lookup-pulse {
  0%,
  100% {
    opacity: 0.45;
    transform: scale(0.82);
  }

  50% {
    opacity: 1;
    transform: scale(1);
  }
}

@media (max-width: 768px) {
  .ip-console-head {
    flex-direction: column;
    gap: 14px;
  }

  .ip-result-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .ip-result-item,
  .ip-result-item:nth-child(even),
  .ip-result-item:nth-last-child(-n + 2) {
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .ip-result-item:last-child {
    border-bottom: 0;
  }

  .explain-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }

  .explain-heading {
    position: static;
  }

  .dns-procedure {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 520px) {
  .ip-console {
    padding-inline: 18px;
    border-radius: var(--radius-lg);
  }

  .ip-console::before {
    left: 18px;
  }

  .ip-console-head,
  .ip-result-grid,
  .ip-console-actions {
    margin-left: 9px;
  }

  .copy-feedback {
    margin-left: 9px;
  }

  .ip-result-item {
    min-height: 116px;
    padding: 19px;
  }

  .ip-console-actions .button {
    width: 100%;
  }

  .explain-entry {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .privacy-note {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .lookup-pulse {
    animation: none;
  }
}