.parallel-hero {
  min-height: 52vh;
  padding: 0 5vw 4rem;
  background:
    radial-gradient(circle at 76% 22%, rgba(95, 209, 200, 0.12), transparent 34%),
    radial-gradient(circle at 28% 38%, rgba(244, 184, 96, 0.10), transparent 35%),
    #081014;
}

.parallel-intro {
  max-width: 900px;
  padding-top: 6rem;
}

.parallel-intro h1 {
  margin: 0.25rem 0 1.5rem;
  font-size: clamp(3rem, 8vw, 7rem);
  line-height: 0.92;
  letter-spacing: -0.055em;
}

.parallel-intro em {
  color: #5fd1c8;
  font-style: normal;
}

.parallel-main {
  display: grid;
  gap: 2rem;
  padding: 3rem 5vw 5rem;
}

.parallel-controls form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem;
  align-items: end;
  margin-top: 2rem;
}

.parallel-controls label {
  display: grid;
  gap: 0.55rem;
  color: #d8dde7;
  font: 0.83rem ui-monospace, SFMono-Regular, Menlo, monospace;
}

.parallel-controls select,
.parallel-controls input,
.parallel-controls button,
.parallel-results button {
  width: 100%;
}

.parallel-controls select {
  min-height: 2.7rem;
  padding: 0.6rem 0.8rem;
  border: 1px solid #2b3b47;
  border-radius: 0.35rem;
  background: #0a1117;
  color: #e5e9ef;
}

.parallel-controls button,
.parallel-results button {
  min-height: 2.8rem;
  padding: 0.65rem 1rem;
  border: 1px solid #5fd1c8;
  border-radius: 0.35rem;
  background: #102229;
  color: #dffffb;
  cursor: pointer;
  font-weight: 700;
}

.parallel-controls button:disabled,
.parallel-results button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.parallel-message,
.adapter {
  margin: 1.4rem 0 0;
  color: #aeb7c4;
}

.result-heading {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}

.result-heading button {
  width: auto;
}

.parallel-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 0.8rem;
  margin-top: 1.6rem;
}

.parallel-metrics div {
  padding: 1rem;
  border: 1px solid #23313b;
  border-radius: 0.45rem;
  background: #091017;
}

.parallel-metrics dt {
  color: #8d9aa8;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.parallel-metrics dd {
  margin: 0.45rem 0 0;
  color: #edf3f7;
  font: 0.92rem ui-monospace, SFMono-Regular, Menlo, monospace;
  overflow-wrap: anywhere;
}

.parallel-explanation pre {
  overflow-x: auto;
  margin-top: 1.5rem;
  padding: 1.4rem;
  border: 1px solid #263641;
  border-radius: 0.5rem;
  background: #070c11;
}

#status[data-kind="pass"] {
  color: #5fd1c8;
}

#status[data-kind="fail"] {
  color: #f08a7d;
}

#status[data-kind="fallback"] {
  color: #f4b860;
}

@media (max-width: 720px) {
  .parallel-hero,
  .parallel-main {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .result-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .result-heading button {
    width: 100%;
  }
}