/* ============================================
   ALIEN-OPERATIONS.AI — Sidebar HUD
   Concept 3 hybrid: persistent right-side panel
   ============================================ */

/* Mobile: thin top status bar */
.hud-mobile-bar {
  display: flex;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: calc(var(--z-nav) - 2);
  height: 28px;
  background: rgba(10, 10, 10, 0.9);
  border-bottom: 1px solid rgba(57, 255, 20, 0.1);
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--alien-green);
  padding: 0 1rem;
}

.hud-mobile-bar .hud-pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--alien-green);
  box-shadow: 0 0 6px var(--alien-green);
  animation: hud-blink 2s ease-in-out infinite;
}

@media (min-width: 1024px) {
  .hud-mobile-bar { display: none; }

  .site-nav { top: 0; }
}

/* Bump nav down on mobile to make room for status bar */
@media (max-width: 1023px) {
  .site-nav { top: 28px; }

  .main-content { padding-top: 28px; }
}

/* Desktop: full sidebar */
.hud-sidebar {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: var(--sidebar-width);
  z-index: var(--z-sidebar);
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-left: 1px solid rgba(57, 255, 20, 0.15);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  overflow: hidden;
  padding: 1rem 0.75rem;
  flex-direction: column;
}

@media (min-width: 1024px) {
  .hud-sidebar { display: flex; }
}

/* Status panel */
.hud-status {
  border: 1px solid rgba(57, 255, 20, 0.2);
  background: rgba(57, 255, 20, 0.03);
  padding: 0.6rem;
  margin-bottom: 0.75rem;
  position: relative;
}

.hud-status-dot {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--alien-green);
  animation: hud-blink 2s ease-in-out infinite;
}

.hud-status-line {
  display: flex;
  justify-content: space-between;
  padding: 0.15rem 0;
}

.hud-status-label {
  color: var(--text-dim);
}

.hud-status-value {
  color: var(--alien-green);
}

.hud-status-value.amber {
  color: var(--hud-amber);
}

/* Connection indicator */
.hud-connection {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.6rem;
  border: 1px solid rgba(57, 255, 20, 0.15);
  margin-bottom: 0.75rem;
  color: var(--alien-green);
  font-size: 0.55rem;
}

.hud-connection-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--alien-green);
  box-shadow: 0 0 8px var(--alien-green);
  animation: hud-blink 3s ease-in-out infinite;
}

/* Uplink log */
.hud-log-header {
  color: var(--scan-teal);
  padding-bottom: 0.35rem;
  margin-bottom: 0.35rem;
  border-bottom: 1px solid rgba(0, 255, 208, 0.15);
  font-size: 0.6rem;
}

.hud-log {
  flex: 1;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  mask-image: linear-gradient(to bottom, black 60%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 60%, transparent 100%);
}

.hud-log-entry {
  color: var(--text-dim);
  line-height: 1.4;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hud-log-entry.visible {
  opacity: 1;
  transform: translateY(0);
}

.hud-log-entry.green {
  color: var(--alien-green);
}

.hud-log-entry.amber {
  color: var(--hud-amber);
}

.hud-log-entry.teal {
  color: var(--scan-teal);
}

/* Section indicator at bottom of sidebar */
.hud-section-indicator {
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(57, 255, 20, 0.1);
}

.hud-section-label {
  color: var(--text-dim);
  font-size: 0.5rem;
  margin-bottom: 0.2rem;
}

.hud-section-name {
  color: var(--alien-green);
  font-size: 0.65rem;
  text-shadow: 0 0 6px var(--glow-green);
}

/* Scan progress bar */
.hud-scan-bar {
  margin-top: 0.5rem;
  height: 2px;
  background: var(--surface);
  position: relative;
  overflow: hidden;
}

.hud-scan-bar-fill {
  height: 100%;
  background: var(--alien-green);
  box-shadow: 0 0 6px var(--alien-green);
  width: 0%;
  transition: width 0.5s ease;
}

@keyframes hud-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .hud-mobile-bar, .hud-sidebar { display: none; }
}