@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --body-background-color: #0a0a0b;
  --body-text-color: #e8e6e3;
  --card-background-color: #111113;
  --card-border-color: #1a1a1d;
  --nav-background-color: #0a0a0b;
  --nav-border-bottom-color: #1a1a1d;
  --nav-current-border-bottom-color: #c9434d;
  --up-border-left-color: #3d3d3f;
  --down-border-left-color: #c9434d;
  --degraded-border-left-color: #c98a43;
  --down-background-color: #1a1014;
  --down-color-color: #c9434d;
  --degraded-color-color: #c98a43;
  --up-color-color: #e8e6e3;
  --tag-color: #e8e6e3;
  --tag-up-background-color: #3d3d3f;
  --tag-down-background-color: #c9434d;
  --tag-degraded-background-color: #c98a43;
  --change-background-color: #c98a43;
  --code-color: #c9434d;
  --code-background-color: #111113;
  --error-button-border-color: #c9434d;
  --error-button-background-color: #111113;
  --error-button-color: #c9434d;
  --submit-button-background-color: #c9434d;
  --submit-button-color: #0a0a0b;
  --submit-button-border-color: #c9434d;
  --graph-opacity: 0.85;
  --graph-filter: brightness(0.8) saturate(0.5) hue-rotate(140deg);
}

body {
  background: #0a0a0b;
  position: relative;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(201, 67, 77, 0.10) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  opacity: 0.025;
  pointer-events: none;
  z-index: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)'/%3E%3C/svg%3E");
  background-repeat: repeat;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'JetBrains Mono', monospace;
}
h2 {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 1.1rem;
  font-weight: 500;
}
h4 {
  font-weight: 500;
}

article {
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
article.link:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.6);
}

/* Graph: move background-image into a pseudo-element so we can filter it without affecting text */
article.graph {
  position: relative;
  background-image: none !important;
}
article.graph::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--background);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: right center;
  filter: brightness(0.7) saturate(0.4) hue-rotate(140deg);
  opacity: 0.75;
  border-radius: inherit;
  pointer-events: none;
}
article.graph > * {
  position: relative;
  z-index: 1;
}

.tag {
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  border-radius: 3px;
  font-size: 65%;
}

nav {
  border-bottom-width: 2px;
}
nav a {
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.05em;
  transition: color 0.2s ease, opacity 0.2s ease;
}
nav a:hover {
  opacity: 0.7;
}

form label {
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: color 0.2s ease;
}

.data {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
}

a {
  transition: opacity 0.2s ease, text-decoration-color 0.2s ease;
}
a:hover {
  text-decoration-color: #c9434d;
}

footer {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  opacity: 0.4;
}
footer a {
  text-decoration-color: rgba(232, 230, 227, 0.2);
}
footer a:hover {
  text-decoration-color: rgba(232, 230, 227, 0.5);
}