.signalcheck,
.signalcheck * {
  box-sizing: border-box;
}

.signalcheck {
  --sc-bg: #041813;
  --sc-panel: rgba(8, 34, 27, 0.84);
  --sc-panel-strong: #071f19;
  --sc-line: rgba(151, 255, 218, 0.16);
  --sc-line-strong: rgba(151, 255, 218, 0.28);
  --sc-text: #effff8;
  --sc-muted: #a0c7ba;
  --sc-aqua: #43e4be;
  --sc-lime: #b9ff5a;
  --sc-orange: #ffb56b;
  position: relative;
  isolation: isolate;
  width: min(100%, 1160px);
  margin: 32px auto;
  overflow: hidden;
  border: 1px solid var(--sc-line);
  border-radius: 30px;
  background:
    radial-gradient(circle at 18% 2%, rgba(67, 228, 190, 0.12), transparent 28%),
    radial-gradient(circle at 93% 15%, rgba(185, 255, 90, 0.06), transparent 27%),
    var(--sc-bg);
  color: var(--sc-text);
  box-shadow: 0 30px 90px rgba(0, 16, 12, 0.34);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

.signalcheck button,
.signalcheck output {
  font: inherit;
}

.signalcheck p,
.signalcheck h2,
.signalcheck h3,
.signalcheck ol,
.signalcheck dl,
.signalcheck dd,
.signalcheck dt {
  margin: 0;
}

.signalcheck [hidden] {
  display: none !important;
}

.signalcheck__glow {
  position: absolute;
  z-index: -1;
  top: -160px;
  left: 18%;
  width: 430px;
  height: 330px;
  border-radius: 999px;
  background: rgba(67, 228, 190, 0.12);
  filter: blur(90px);
  pointer-events: none;
}

.signalcheck__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 25px 32px;
  border-bottom: 1px solid var(--sc-line);
}

.signalcheck__brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--sc-text);
  font-size: 15px;
  font-weight: 760;
  letter-spacing: -0.01em;
}

.signalcheck__brand-mark {
  display: inline-flex;
  align-items: flex-end;
  gap: 3px;
  width: 25px;
  height: 25px;
  padding: 5px;
  border: 1px solid rgba(67, 228, 190, 0.34);
  border-radius: 8px;
  background: rgba(67, 228, 190, 0.1);
}

.signalcheck__brand-mark i {
  display: block;
  width: 3px;
  border-radius: 5px;
  background: var(--sc-aqua);
}

.signalcheck__brand-mark i:nth-child(1) { height: 5px; }
.signalcheck__brand-mark i:nth-child(2) { height: 9px; }
.signalcheck__brand-mark i:nth-child(3) { height: 13px; }

.signalcheck__status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
  padding: 6px 12px;
  border: 1px solid var(--sc-line);
  border-radius: 999px;
  color: var(--sc-muted);
  background: rgba(255, 255, 255, 0.018);
  font-size: 12px;
}

.signalcheck__status-chip span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #6f9387;
}

.signalcheck__status-chip b {
  font-weight: 650;
}

.signalcheck__status-chip.is-running span {
  background: var(--sc-aqua);
  box-shadow: 0 0 0 5px rgba(67, 228, 190, 0.12);
  animation: signalcheck-pulse 1.5s ease-in-out infinite;
}

.signalcheck__intro {
  max-width: 730px;
  padding: 48px 48px 30px;
}

.signalcheck__eyebrow,
.signalcheck__results-heading > div > p {
  color: var(--sc-aqua) !important;
  font-size: 11px !important;
  font-weight: 780 !important;
  line-height: 1.3 !important;
  letter-spacing: 0.16em !important;
  text-transform: uppercase;
}

.signalcheck__intro h2 {
  margin-top: 12px;
  color: var(--sc-text);
  font-size: clamp(32px, 5vw, 58px);
  font-weight: 750;
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.signalcheck__intro > p:last-child {
  max-width: 620px;
  margin-top: 16px;
  color: var(--sc-muted);
  font-size: 16px;
  line-height: 1.65;
}

.signalcheck__grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.78fr) minmax(480px, 1.22fr);
  gap: 18px;
  padding: 0 32px 32px;
}

.signalcheck__meter-panel,
.signalcheck__results-panel {
  min-width: 0;
  border: 1px solid var(--sc-line);
  border-radius: 24px;
  background: var(--sc-panel);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.025);
  backdrop-filter: blur(12px);
}

.signalcheck__meter-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 34px 30px 30px;
}

.signalcheck__gauge {
  --sc-gauge-angle: 3deg;
  position: relative;
  display: grid;
  place-items: center;
  width: min(100%, 290px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: conic-gradient(from 225deg, var(--sc-aqua) 0 var(--sc-gauge-angle), rgba(118, 178, 158, 0.12) var(--sc-gauge-angle) 270deg, transparent 270deg 360deg);
  transform: rotate(0.001deg);
  transition: background 180ms ease;
}

.signalcheck__gauge::before {
  content: "";
  position: absolute;
  inset: 11px;
  border-radius: 50%;
  background: var(--sc-panel-strong);
  box-shadow: inset 0 0 0 1px rgba(151, 255, 218, 0.08), 0 15px 50px rgba(0, 0, 0, 0.2);
}

.signalcheck__gauge::after {
  content: "";
  position: absolute;
  right: 7.5%;
  bottom: 13%;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(185, 255, 90, 0.28), transparent 66%);
  filter: blur(4px);
  opacity: 0.72;
}

.signalcheck__gauge-face {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 72%;
  text-align: center;
}

.signalcheck__gauge-label {
  min-height: 32px;
  color: var(--sc-aqua);
  font-size: 12px;
  font-weight: 700;
}

.signalcheck__gauge strong {
  display: block;
  max-width: 100%;
  overflow: hidden;
  color: var(--sc-text);
  font-size: clamp(42px, 7vw, 66px);
  font-variant-numeric: tabular-nums;
  font-weight: 720;
  line-height: 1;
  letter-spacing: -0.06em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.signalcheck__gauge-unit {
  margin-top: 10px;
  color: var(--sc-muted);
  font-size: 13px;
}

.signalcheck__steps {
  display: grid;
  grid-template-columns: repeat(3, auto);
  align-items: center;
  justify-content: center;
  gap: 14px;
  width: 100%;
  padding: 0;
  margin-top: 19px !important;
  color: var(--sc-muted);
  font-size: 12px;
  list-style: none;
}

.signalcheck__steps li {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.signalcheck__steps li + li::before {
  content: "";
  width: 26px;
  height: 1px;
  margin-right: 2px;
  background: var(--sc-line-strong);
}

.signalcheck__steps li > span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(160, 199, 186, 0.35);
}

.signalcheck__steps li.is-current,
.signalcheck__steps li.is-complete {
  color: var(--sc-aqua);
}

.signalcheck__steps li.is-current > span {
  background: var(--sc-aqua);
  box-shadow: 0 0 0 5px rgba(67, 228, 190, 0.09);
}

.signalcheck__steps li.is-complete > span {
  background: var(--sc-lime);
}

.signalcheck__button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100%, 270px);
  min-height: 58px;
  margin: 27px 0 0;
  padding: 8px 10px 8px 20px;
  border: 2px solid #e9ffd7;
  border-radius: 999px;
  outline: 2px solid transparent;
  outline-offset: 3px;
  color: #062017;
  background: var(--sc-lime);
  box-shadow: 0 9px 24px rgba(185, 255, 90, 0.13), inset 0 -2px rgba(0, 0, 0, 0.08);
  cursor: pointer;
  font-size: 14px;
  font-weight: 780;
  line-height: 1.2;
  text-align: left;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
  -webkit-appearance: none;
  appearance: none;
}

.signalcheck__button:hover {
  color: #062017;
  background: #c8ff7c;
  box-shadow: 0 12px 30px rgba(185, 255, 90, 0.2), inset 0 -2px rgba(0, 0, 0, 0.08);
  transform: translateY(-1px);
}

.signalcheck__button:focus-visible {
  outline-color: var(--sc-aqua);
}

.signalcheck__button.is-cancel {
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--sc-text);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: none;
}

.signalcheck__button-icon {
  display: grid;
  flex: 0 0 38px;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(6, 32, 23, 0.11);
  font-size: 22px;
  font-weight: 500;
}

.signalcheck__button.is-cancel .signalcheck__button-icon {
  background: rgba(255, 255, 255, 0.08);
}

.signalcheck__live-status {
  min-height: 20px;
  margin-top: 13px !important;
  color: var(--sc-muted);
  font-size: 11px;
  text-align: center;
}

.signalcheck__usage {
  margin-top: 6px !important;
  color: var(--sc-muted);
  font-size: 11px;
  text-align: center;
}

.signalcheck__results-panel {
  padding: 31px;
}

.signalcheck__results-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.signalcheck__results-heading h3 {
  margin-top: 8px;
  color: var(--sc-text);
  font-size: clamp(22px, 3vw, 29px);
  font-weight: 720;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.signalcheck__results-heading > span {
  flex: 0 0 auto;
  padding: 7px 10px;
  border: 1px solid var(--sc-line);
  border-radius: 999px;
  color: var(--sc-aqua);
  font-size: 11px;
}

.signalcheck__metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 30px;
}

.signalcheck__metric {
  min-width: 0;
  min-height: 163px;
  padding: 20px 18px;
  border: 1px solid var(--sc-line);
  border-radius: 18px;
  background: rgba(0, 12, 9, 0.18);
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.signalcheck__metric.is-active {
  border-color: rgba(67, 228, 190, 0.28);
  background: rgba(67, 228, 190, 0.035);
  transform: translateY(-1px);
}

.signalcheck__metric-icon {
  display: grid;
  place-items: center;
  width: 31px;
  height: 31px;
  border-radius: 10px;
  color: var(--sc-aqua);
  background: rgba(67, 228, 190, 0.1);
  font-size: 20px;
  font-weight: 500;
  line-height: 1;
}

.signalcheck__metric-icon--ping {
  font-size: 28px;
}

.signalcheck__metric > p {
  margin-top: 18px !important;
  color: var(--sc-aqua);
  font-size: 12px;
}

.signalcheck__metric > div {
  display: flex;
  align-items: baseline;
  gap: 5px;
  min-width: 0;
  margin-top: 7px;
}

.signalcheck__metric output {
  overflow: hidden;
  color: var(--sc-text);
  font-size: clamp(25px, 3.2vw, 35px);
  font-variant-numeric: tabular-nums;
  font-weight: 720;
  line-height: 1;
  letter-spacing: -0.045em;
  text-overflow: ellipsis;
}

.signalcheck__metric > div span {
  color: var(--sc-muted);
  font-size: 11px;
}

.signalcheck__notice {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  margin-top: 17px;
  padding: 15px 16px;
  border: 1px solid rgba(67, 228, 190, 0.25);
  border-radius: 15px;
  background: rgba(67, 228, 190, 0.06);
}

.signalcheck__notice.is-error {
  border-color: rgba(255, 181, 107, 0.28);
  background: rgba(255, 181, 107, 0.07);
}

.signalcheck__notice.is-neutral {
  border-color: var(--sc-line-strong);
  background: rgba(160, 199, 186, 0.05);
}

.signalcheck__notice-mark {
  display: grid;
  flex: 0 0 28px;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  color: #052019;
  background: var(--sc-aqua);
  font-size: 14px;
  font-weight: 850;
}

.signalcheck__notice.is-error .signalcheck__notice-mark {
  background: var(--sc-orange);
}

.signalcheck__notice.is-neutral .signalcheck__notice-mark {
  color: var(--sc-text);
  background: rgba(160, 199, 186, 0.16);
}

.signalcheck__notice strong {
  display: block;
  color: var(--sc-text);
  font-size: 12px;
  line-height: 1.4;
}

.signalcheck__notice p {
  margin-top: 3px !important;
  color: var(--sc-muted);
  font-size: 12px;
  line-height: 1.5;
}

.signalcheck__details {
  margin-top: 23px !important;
  border-top: 1px solid var(--sc-line);
}

.signalcheck__details > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 44px;
  border-bottom: 1px solid var(--sc-line);
  color: var(--sc-muted);
  font-size: 12px;
}

.signalcheck__details dt,
.signalcheck__details dd {
  min-width: 0;
  font-weight: 500;
}

.signalcheck__details dd {
  color: var(--sc-aqua);
  text-align: right;
}

.signalcheck__footnote {
  padding: 0 33px 28px;
  color: var(--sc-muted);
  font-size: 11px;
  line-height: 1.55;
  text-align: right;
}

@keyframes signalcheck-pulse {
  0%, 100% { opacity: 0.65; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1); }
}

@media (max-width: 980px) {
  .signalcheck {
    border-radius: 24px;
  }

  .signalcheck__intro {
    padding-right: 32px;
    padding-left: 32px;
  }

  .signalcheck__grid {
    grid-template-columns: 1fr;
  }

  .signalcheck__meter-panel {
    padding-top: 28px;
  }

  .signalcheck__gauge {
    width: min(100%, 270px);
  }
}

@media (max-width: 620px) {
  .signalcheck {
    margin: 18px auto;
    border-radius: 19px;
  }

  .signalcheck__header {
    padding: 18px;
  }

  .signalcheck__status-chip {
    padding-inline: 9px;
  }

  .signalcheck__intro {
    padding: 35px 20px 24px;
  }

  .signalcheck__intro > p:last-child {
    font-size: 14px;
  }

  .signalcheck__grid {
    gap: 13px;
    padding: 0 12px 20px;
  }

  .signalcheck__meter-panel,
  .signalcheck__results-panel {
    border-radius: 18px;
  }

  .signalcheck__meter-panel {
    padding: 25px 14px 24px;
  }

  .signalcheck__gauge {
    width: min(100%, 245px);
  }

  .signalcheck__steps {
    gap: 8px;
  }

  .signalcheck__steps li + li::before {
    width: 12px;
  }

  .signalcheck__results-panel {
    padding: 24px 17px;
  }

  .signalcheck__results-heading {
    align-items: flex-end;
  }

  .signalcheck__results-heading > span {
    display: none;
  }

  .signalcheck__metrics {
    grid-template-columns: 1fr;
    margin-top: 22px;
  }

  .signalcheck__metric {
    display: grid;
    grid-template-columns: 36px 1fr auto;
    align-items: center;
    gap: 10px;
    min-height: 76px;
    padding: 13px 14px;
  }

  .signalcheck__metric > p {
    margin-top: 0 !important;
  }

  .signalcheck__metric > div {
    justify-content: flex-end;
    margin-top: 0;
  }

  .signalcheck__metric output {
    font-size: 26px;
  }

  .signalcheck__details > div {
    align-items: flex-start;
    padding: 12px 0;
  }

  .signalcheck__footnote {
    padding: 0 18px 22px;
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  .signalcheck *,
  .signalcheck *::before,
  .signalcheck *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (forced-colors: active) {
  .signalcheck,
  .signalcheck__meter-panel,
  .signalcheck__results-panel,
  .signalcheck__metric,
  .signalcheck__notice {
    border-color: CanvasText;
  }

  .signalcheck__button {
    border-color: ButtonText;
  }
}