:root {
  color-scheme: dark;
  --rain-color: 114, 255, 210;
  --body-color: #d8fff1;
  --muted-color: #b7c7d8;
  --accent-color: #72ffd2;
  --panel-border: rgba(120, 255, 210, 0.25);
  --panel-bg: rgba(5, 10, 16, 0.78);
  --panel-shadow: rgba(0, 255, 180, 0.08);
  --link-border: rgba(114, 255, 210, 0.35);
  --link-bg: rgba(114, 255, 210, 0.04);
  --link-bg-hover: rgba(114, 255, 210, 0.12);
  --link-dash: rgba(114, 255, 210, 0.6);
  --bg-one: rgba(90, 160, 255, 0.16);
  --bg-two: rgba(0, 255, 180, 0.12);
  --field-one: rgba(90, 160, 255, 0.18);
  --field-two: rgba(0, 255, 180, 0.14);
  --field-line: rgba(114, 255, 210, 0.08);
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 30% 20%, var(--bg-one), transparent 30%),
    radial-gradient(circle at 70% 80%, var(--bg-two), transparent 28%),
    #0b0f14;
  color: var(--body-color);
  font-family: "Courier New", Courier, monospace;
}

body::after {
  content: "";
  position: fixed;
  inset: -20%;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(circle at 22% 28%, var(--field-one), transparent 18%),
    radial-gradient(circle at 78% 72%, var(--field-two), transparent 20%),
    linear-gradient(115deg, transparent 35%, var(--field-line), transparent 55%);
  filter: blur(8px);
  opacity: 0.85;
  animation: pulse-field 18s ease-in-out infinite alternate;
}

.page-50x {
  --rain-color: 255, 180, 180;
  --body-color: #ffecec;
  --muted-color: #d8c3c3;
  --accent-color: #ffb4b4;
  --panel-border: rgba(255, 150, 150, 0.28);
  --panel-bg: rgba(12, 6, 8, 0.80);
  --panel-shadow: rgba(255, 120, 120, 0.08);
  --link-border: rgba(255, 180, 180, 0.35);
  --link-bg: rgba(255, 180, 180, 0.04);
  --link-bg-hover: rgba(255, 180, 180, 0.12);
  --link-dash: rgba(255, 180, 180, 0.6);
  --bg-one: rgba(255, 120, 120, 0.14);
  --bg-two: rgba(0, 255, 180, 0.10);
  --field-one: rgba(255, 120, 120, 0.16);
  --field-two: rgba(0, 255, 180, 0.10);
  --field-line: rgba(255, 180, 180, 0.08);
}

.page-404 {
  --rain-color: 255, 220, 120;
  --body-color: #fff8dc;
  --muted-color: #d8cfa6;
  --accent-color: #ffd86b;
  --panel-border: rgba(255, 216, 107, 0.30);
  --panel-bg: rgba(14, 11, 4, 0.80);
  --panel-shadow: rgba(255, 200, 80, 0.08);
  --link-border: rgba(255, 216, 107, 0.38);
  --link-bg: rgba(255, 216, 107, 0.05);
  --link-bg-hover: rgba(255, 216, 107, 0.13);
  --link-dash: rgba(255, 216, 107, 0.62);
  --bg-one: rgba(255, 200, 70, 0.14);
  --bg-two: rgba(0, 255, 180, 0.08);
  --field-one: rgba(255, 200, 70, 0.16);
  --field-two: rgba(0, 255, 180, 0.08);
  --field-line: rgba(255, 216, 107, 0.08);
}

.matrix-bg {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.58;
  mix-blend-mode: screen;
}

main {
  padding: 32px;
  max-width: 960px;
  width: calc(100% - 48px);
  position: relative;
  z-index: 1;
}

.panel {
  border: 1px solid var(--panel-border);
  border-radius: 18px;
  padding: 40px;
  background: var(--panel-bg);
  box-shadow: 0 0 60px var(--panel-shadow);
}

.logo {
  max-width: 760px;
  width: 100%;
}

.logo svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.logo-main {
  font-family: "Courier New", Courier, monospace;
  font-size: 72px;
  font-weight: 700;
  letter-spacing: 0.04em;
  fill: var(--accent-color);
  filter: drop-shadow(0 0 10px rgba(var(--rain-color), 0.45));
}

.logo-sub {
  font-family: "Courier New", Courier, monospace;
  font-size: 18px;
  letter-spacing: 0.45em;
  fill: var(--accent-color);
}

.caption,
.code {
  margin-top: 32px;
  color: var(--body-color);
  font-size: 15px;
  letter-spacing: 0.06em;
}

.code {
  margin-top: 36px;
  color: var(--accent-color);
  font-size: 22px;
  letter-spacing: 0.28em;
}

.message {
  margin-top: 18px;
  color: var(--body-color);
  font-size: 15px;
  line-height: 1.7;
  letter-spacing: 0.04em;
}

.note {
  margin-top: 10px;
  color: var(--muted-color);
  font-size: 14px;
}

.code + .message + .note {
  margin-top: 12px;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.links a {
  display: inline-block;
  padding: 9px 14px;
  border: 1px solid var(--link-border);
  border-radius: 999px;
  color: var(--accent-color);
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.04em;
  background: var(--link-bg);
}

.links a:hover {
  background: var(--link-bg-hover);
}

.status {
  display: inline-block;
  margin-top: 24px;
  padding: 7px 12px;
  border: 1px solid var(--link-border);
  border-radius: 999px;
  color: var(--accent-color);
  font-size: 12px;
}

a {
  color: var(--accent-color);
  text-decoration: none;
  border-bottom: 1px dashed var(--link-dash);
}

@keyframes pulse-field {
  from { transform: translate3d(-2%, -1%, 0) scale(1); }
  to { transform: translate3d(2%, 1%, 0) scale(1.08); }
}

@media (prefers-reduced-motion: reduce) {
  body::after {
    animation: none;
  }

  .matrix-bg {
    display: none;
  }
}