.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.grid-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(0,255,65,0.04) 0%, transparent 60%);
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: repeating-linear-gradient(
    0deg,
    var(--scan-line) 0px,
    var(--scan-line) 1px,
    transparent 1px,
    transparent 3px
  ), rgba(2, 12, 4, 0.97);
  border-bottom: 1px solid rgba(0,255,65,0.3);
  padding: 0 2rem;
  backdrop-filter: blur(4px);
  animation: flicker 15s infinite, scanroll 30s linear infinite;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  gap: 1rem;
}

.logo {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--phosphor);
  text-shadow: 0 0 20px var(--phosphor), 0 0 40px rgba(0,255,65,0.4);
  letter-spacing: 0.05em;
  line-height: 1;
  text-decoration: none;
}

.logo span {
  color: var(--amber);
  text-shadow: 0 0 20px var(--amber);
}

.header-subtitle {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: rgba(0,255,65,0.35);
  margin-top: 2px;
}

.header-meta {
  font-size: 0.95rem;
  color: var(--phosphor-dim);
  text-align: right;
  line-height: 1.8;
  letter-spacing: 0.08em;
  font-family: var(--font-display);
}

.status-dot {
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--phosphor);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--phosphor);
  animation: blink 1.2s infinite;
  margin-right: 4px;
  vertical-align: middle;
}

.main-layout {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1rem;
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 2rem;
  align-items: start;
}

footer {
  border-top: 1px solid rgba(0,255,65,0.15);
  padding: 1.5rem;
  text-align: center;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: rgba(0,255,65,0.25);
  line-height: 2;
}

.empty-state {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--phosphor-dim);
  font-size: 0.95rem;
  letter-spacing: 0.15em;
  line-height: 2.5;
}

.page-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  text-shadow: 0 0 12px var(--phosphor);
  margin-bottom: 1.5rem;
}

.page-subtitle {
  font-size: 0.75rem;
  color: var(--phosphor-dim);
  letter-spacing: 0.15em;
}

.flash-notice {
  border: 1px solid rgba(0,255,65,0.3);
  padding: 0.6rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  color: var(--phosphor);
  letter-spacing: 0.1em;
  background: rgba(0,255,65,0.05);
}

.content-wrap {
  max-width: var(--max-width);
  margin: 2rem auto;
  padding: 0 1rem;
}

@media (max-width: 700px) {
  .main-layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
}