body {
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow: hidden;
  height: 100vh;
  height: 100dvh;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
  background: rgba(0, 245, 255, 0.2);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 245, 255, 0.4);
}

/* App container */
#app {
  width: 100%;
  height: 100vh;
  height: 100dvh;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(0, 245, 255, 0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(255, 45, 149, 0.03) 0%, transparent 50%),
    var(--bg-primary);
}

/* Scanline overlay effect */
#app::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.05) 2px,
    rgba(0, 0, 0, 0.05) 4px
  );
  pointer-events: none;
  z-index: 1000;
}

/* Selection color */
::selection {
  background: rgba(0, 245, 255, 0.3);
  color: white;
}

/* Language Selector */
#lang-selector {
  position: fixed;
  top: var(--sp-md);
  right: var(--sp-md);
  z-index: 100;
  display: flex;
  align-items: center;
  gap: var(--sp-xs);
  background: var(--bg-card);
  padding: var(--sp-xs) var(--sp-sm);
  border-radius: 4px;
  border: var(--border-subtle);
}

.lang-btn {
  font-family: var(--font-primary);
  font-size: 12px;
  padding: 2px 6px;
  border-radius: 3px;
  color: var(--text-secondary);
  transition: all var(--t-fast);
}

.lang-btn:hover {
  color: var(--neon-cyan);
}

.lang-btn.active {
  color: var(--neon-cyan);
  text-shadow: var(--glow-cyan);
  background: rgba(0, 245, 255, 0.1);
}

.lang-divider {
  color: var(--text-dim);
  font-size: 12px;
}