:root {
  --body-background-color: #070b16;
  --body-text-color: #e8eefc;

  --card-background-color: #101827;
  --card-border-color: #22304a;

  --nav-background-color: #0b1020;
  --nav-border-bottom-color: #1b2540;
  --nav-current-border-bottom-color: #7c3aed;

  --up-border-left-color: #22c55e;
  --down-border-left-color: #ef4444;
  --degraded-border-left-color: #f59e0b;

  --down-background-color: #2a1016;
  --degraded-background-color: #2a210d;
  --up-background-color: #0f2418;

  --tag-color: #ffffff;
  --tag-up-background-color: #16a34a;
  --tag-down-background-color: #dc2626;
  --tag-degraded-background-color: #d97706;

  --change-background-color: #7c3aed;

  --error-button-border-color: #6d28d9;
  --error-button-background-color: #7c3aed;
  --error-button-color: #ffffff;

  --submit-button-border-color: #2563eb;
  --submit-button-background-color: #3b82f6;
  --submit-button-color: #ffffff;

  --graph-opacity: 0.95;
  --graph-filter: none;
}

/* Background */
body {
  background:
    radial-gradient(circle at top left, rgba(124, 58, 237, 0.25), transparent 35%),
    radial-gradient(circle at top right, rgba(37, 99, 235, 0.22), transparent 30%),
    linear-gradient(180deg, #070b16 0%, #0b1020 100%);
  color: var(--body-text-color);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* Navigation */
nav {
  background: rgba(11, 16, 32, 0.88) !important;
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--nav-border-bottom-color) !important;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

nav a {
  color: #c7d2fe !important;
  transition: color 0.2s ease, border-color 0.2s ease;
}

nav a:hover {
  color: #ffffff !important;
}

nav a[aria-current="page"],
nav .active {
  border-bottom-color: #7c3aed !important;
  color: #ffffff !important;
}

/* Main layout */
main {
  max-width: 1180px;
}

/* Headings */
h1, h2, h3 {
  color: #ffffff;
  letter-spacing: -0.03em;
}

h1 {
  background: linear-gradient(90deg, #ffffff, #a5b4fc, #60a5fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Cards */
article,
.card,
section > div {
  border-radius: 18px !important;
  background: linear-gradient(180deg, rgba(16, 24, 39, 0.96), rgba(10, 15, 30, 0.96)) !important;
  border: 1px solid rgba(99, 102, 241, 0.2) !important;
  box-shadow:
    0 20px 45px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

/* Status cards hover */
article:hover,
.card:hover {
  border-color: rgba(124, 58, 237, 0.55) !important;
  box-shadow:
    0 24px 60px rgba(0, 0, 0, 0.45),
    0 0 30px rgba(124, 58, 237, 0.12);
  transform: translateY(-1px);
  transition: all 0.2s ease;
}

/* Links */
a {
  color: #60a5fa;
}

a:hover {
  color: #93c5fd;
}

/* Buttons */
button,
.button,
input[type="submit"] {
  border-radius: 12px !important;
  background: linear-gradient(135deg, #2563eb, #7c3aed) !important;
  border: 1px solid rgba(255, 255, 255, 0.14) !important;
  color: #ffffff !important;
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.28);
}

button:hover,
.button:hover,
input[type="submit"]:hover {
  filter: brightness(1.12);
  box-shadow: 0 14px 35px rgba(124, 58, 237, 0.35);
}

/* Status tags */
.tag,
.badge {
  border-radius: 999px !important;
  font-weight: 700;
  letter-spacing: 0.02em;
}

/* Graphs */
canvas,
svg {
  filter: drop-shadow(0 0 10px rgba(96, 165, 250, 0.12));
}

/* Incidents / history */
.change {
  border-radius: 12px !important;
  background: rgba(124, 58, 237, 0.18) !important;
}

/* Tables */
table {
  border-radius: 16px;
  overflow: hidden;
}

th {
  background: #0f172a !important;
  color: #c7d2fe !important;
}

td {
  border-color: #1e293b !important;
}

/* Footer */
footer {
  color: #94a3b8;
  border-top: 1px solid #1e293b;
}

/* Mobile polish */
@media (max-width: 768px) {
  body {
    background:
      radial-gradient(circle at top, rgba(124, 58, 237, 0.22), transparent 35%),
      #070b16;
  }

  article,
  .card,
  section > div {
    border-radius: 14px !important;
  }

  h1 {
    font-size: 2rem;
  }
}