/* ════════════════════════════════════════════════════════════════════════════
   SPEED.CSS — /speed/ page styles
   Depends on shared.css for variables, nav, footer, animations.
   ════════════════════════════════════════════════════════════════════════════ */

/* ── Accent colours for each metric ──────────────────────────────────────── */
:root {
  --speed-dl:     var(--term-green);
  --speed-ul:     var(--term-data);
  --speed-ping:   var(--color-success);
  --speed-jitter: #a899c4;
}

/* ── Gauge row ───────────────────────────────────────────────────────────── */
.gauge-row {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

/* ── Individual gauge ────────────────────────────────────────────────────── */
.gauge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.625rem;
  width: 9.5rem;
}

.gauge-svg {
  width: 9.5rem;
  height: 9.5rem;
  overflow: visible;
}

/* Background track ring */
.gauge-track {
  fill: none;
  stroke: var(--border);
  stroke-width: 7;
  /* 270-degree arc: r=64, circumference=402.1, arc=301.6, gap=100.5 */
  stroke-dasharray: 301.6 100.5;
  transform: rotate(135deg);
  transform-origin: center;
  transition: stroke var(--transition);
}

/* Filled arc */
.gauge-fill {
  fill: none;
  stroke-width: 7;
  stroke-linecap: round;
  stroke-dasharray: 301.6 100.5;
  stroke-dashoffset: 301.6;
  /* starts empty */
  transform: rotate(135deg);
  transform-origin: center;
  transition: stroke-dashoffset 0.4s ease, stroke var(--transition);
}

.gauge-fill.dl {
  stroke: var(--speed-dl);
}

.gauge-fill.ul {
  stroke: var(--speed-ul);
}

.gauge-fill.ping {
  stroke: var(--speed-ping);
}

.gauge-fill.jitter {
  stroke: var(--speed-jitter);
}

/* Center value overlay */
.gauge-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  pointer-events: none;
}

/* Wrapper to allow absolute positioning of center over SVG */
.gauge-wrap {
  position: relative;
  width: 9.5rem;
  height: 9.5rem;
}

.gauge-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.375rem;
  font-weight: 400;
  color: var(--text);
  letter-spacing: -0.02em;
  line-height: 1.1;
  transition: color var(--transition);
}

.gauge-unit {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--text-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: 0.125rem;
}

.gauge-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
  transition: color var(--transition);
}

/* Active state — label takes metric colour */
.gauge.active .gauge-label {
  color: var(--text);
}

/* ── Run button ──────────────────────────────────────────────────────────── */
.run-btn-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.875rem;
}

#btn-run {
  font-family: var(--font-mono);
  font-size: 0.78125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: none;
  border: var(--border-w) solid var(--border-strong);
  color: var(--text-muted);
  padding: 0.6875rem 2.25rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition),
    background var(--transition);
}

#btn-run:hover:not(:disabled) {
  color: var(--text);
  border-color: var(--text-muted);
  background: var(--bg-raised);
}

#btn-run:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.phase-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-faint);
  letter-spacing: 0.06em;
  min-height: 1.4em;
}

/* Phase label pulse while running */
@keyframes pulse-text {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.4;
  }
}

.phase-label.running {
  animation: pulse-text 1.4s ease-in-out infinite;
  color: var(--text-muted);
}

.phase-label.complete {
  color: var(--speed-dl);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: pop-in 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes pop-in {
  0% {
    transform: scale(0.9);
    opacity: 0;
  }

  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* ── Divider ─────────────────────────────────────────────────────────────── */
.speed-divider {
  border: none;
  border-top: var(--border-w) solid var(--border);
  margin: 3rem 0;
}

/* ── Detail cards grid ───────────────────────────────────────────────────── */
.details-section {
  opacity: 0;
  transform: translateY(0.625rem);
  transition: opacity 0.4s ease, transform 0.4s ease;
  pointer-events: none;
}

.details-section.visible {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.details-heading {
  font-family: var(--font-mono);
  font-size: 0.65625rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 1.125rem;
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11.5625rem, 1fr));
  gap: 0.75rem;
}

.detail-card {
  background: var(--bg-raised);
  border: var(--border-w) solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.125rem;
  transition: border-color var(--transition), background var(--transition);
}

.detail-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  display: block;
  margin-bottom: 0.375rem;
}

.detail-value {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  color: var(--text);
  display: block;
  word-break: break-all;
}

.detail-na {
  color: var(--text-faint);
  font-size: 0.75rem;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 40rem) {
  .gauge-row {
    gap: 1.25rem;
  }

  .gauge,
  .gauge-wrap,
  .gauge-svg {
    width: 8.125rem;
    height: 8.125rem;
  }

  .gauge-value {
    font-size: 1.1875rem;
  }

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

@media (max-width: 25rem) {
  .gauge-row {
    gap: 0.875rem;
  }

  .gauge,
  .gauge-wrap,
  .gauge-svg {
    width: 7.25rem;
    height: 7.25rem;
  }

  .gauge-value {
    font-size: 1.0625rem;
  }
}

/* ── Specific classes for no-inline styles ───────────────────────────────── */
.speed-ip-wrap {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin-bottom: 0;
  text-align: center;
  transition: max-height 0.4s ease, opacity 0.4s ease, margin-bottom 0.4s ease;
}

.speed-ip-wrap.visible {
  max-height: 2rem;
  opacity: 1;
  margin-bottom: 1rem;
}

.speed-ip-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-faint);
}

.speed-ip-value {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.cli-section-wrap {
  margin-top: 2rem;
}

.detail-card--wide {
  max-width: 32.5rem;
}

.detail-card--wide+.detail-card--wide {
  margin-top: 0.625rem;
}

.cli-value {
  font-size: 0.75rem;
  margin-top: 0.5rem;
  display: block;
  line-height: 2;
}

.cli-comment {
  color: var(--text-faint);
}

.cli-footnote {
  margin-top: 0.875rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-faint);
}

.cli-footnote a {
  color: inherit;
}