.sp-error-page {
  --er-bg: #f8fafc;
  --er-text: #18263e;
  --er-muted: #8190a6;
  --er-line: #e4eaf2;
  box-sizing: border-box;
  min-height: 100dvh;
  padding: 32px max(24px, calc((100vw - 1120px) /2));
  color: var(--er-text);
  font:
    14px/1.6 Onest,
    sans-serif;
  background:
    radial-gradient(ellipse at 15% 45%, #edf3ff, transparent 50%), var(--er-bg);
  display: flex;
  flex-direction: column;
}
body:has(.sp-error-page) {
  margin: 0;
}
[data-theme='dark'] .sp-error-page {
  --er-bg: #101a29;
  --er-text: #ecf2fc;
  --er-muted: #91a4bf;
  --er-line: #283950;
  background:
    radial-gradient(ellipse at 15% 45%, #172d4d, transparent 55%), var(--er-bg);
}
.sp-error-page * {
  box-sizing: border-box;
}
.sp-error-page header,
.sp-error-page footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.sp-error-page header > a {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--er-text);
  text-decoration: none;
}
.sp-error-page header strong {
  font-size: 23px;
  letter-spacing: -1px;
}
.sp-error-page header > span,
.sp-error-page footer {
  font-size: 11px;
  color: var(--er-muted);
}
.sp-error-page section {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 80px;
  align-items: center;
  flex: 1;
  padding: 80px 0;
  min-height: 540px;
}
.sp-error-number {
  font-size: clamp(110px, 17vw, 220px);
  line-height: 1;
  font-weight: 600;
  letter-spacing: -0.08em;
  color: #326bff;
}
.sp-error-label {
  font-size: 9px;
  color: var(--er-muted);
  letter-spacing: 2px;
}
.sp-error-page h1 {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -1px;
  margin: 18px 0;
}
.sp-error-page p {
  color: var(--er-muted);
  max-width: 430px;
  margin: 0 0 30px;
  font-size: 14px;
}
.sp-error-page nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.sp-error-page nav a,
.sp-error-page nav button {
  font: inherit;
  font-size: 12px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  padding: 11px 17px;
  border: 1px solid var(--er-line);
  border-radius: 7px;
  color: var(--er-text);
  background: transparent;
  cursor: pointer;
}
.sp-error-page nav .primary {
  background: #326bff;
  border-color: #326bff;
  color: #fff;
}
.sp-error-page :focus-visible {
  outline: 2px solid #326bff;
  outline-offset: 4px;
}
.sp-error-page footer {
  border-top: 1px solid var(--er-line);
  padding-top: 20px;
}
@media (max-width: 700px) {
  .sp-error-page {
    padding: 24px;
  }
  .sp-error-page section {
    grid-template-columns: 1fr;
    gap: 35px;
    padding: 65px 0;
    min-height: 0;
  }
  .sp-error-number {
    font-size: 135px;
  }
  .sp-error-page h1 {
    font-size: 30px;
  }
  .sp-error-page footer {
    margin-top: 30px;
  }
}