/* ══════════════════════════════════════════
   Neural Metropolis Hub — Cyberpunk UI v2
   ══════════════════════════════════════════ */

:root {
  --nm-bg: #0a0a1a;
  --nm-panel-bg: rgba(10, 10, 26, 0.85);
  --nm-accent: #7b68ee;
  --nm-accent-bright: #9d8fff;
  --nm-accent-dim: #4a3aaa;
  --nm-neon-cyan: #00f0ff;
  --nm-neon-green: #00ff6a;
  --nm-text: rgba(255, 255, 255, 0.85);
  --nm-text-dim: rgba(255, 255, 255, 0.5);
  --nm-text-muted: rgba(255, 255, 255, 0.25);
  --nm-border: rgba(123, 104, 238, 0.2);
  --nm-border-bright: rgba(123, 104, 238, 0.4);
  --nm-glass-bg: rgba(10, 10, 26, 0.6);
  --nm-font-heading: 'Orbitron', sans-serif;
  --nm-font-body: 'Rajdhani', sans-serif;
  --panel-width: 380px;
  --header-height: 48px;
  --nav-height: 56px;
}

/* ── Global text style ── */
body {
  font-family: var(--nm-font-body);
  color: var(--nm-text);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  -webkit-font-smoothing: antialiased;
}

/* ══════════════════════════
   LOADING SCREEN
   ══════════════════════════ */
#loading-screen {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: var(--nm-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s ease;
}
#loading-screen.fade-out {
  opacity: 0;
  pointer-events: none;
}

.loading-logo-wrap {
  position: relative;
  width: 80px;
  height: 80px;
  margin-bottom: 24px;
}
.loading-logo {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 2px solid var(--nm-accent);
  box-shadow: 0 0 20px rgba(123, 104, 238, 0.4);
}
.loading-logo-ring {
  position: absolute;
  inset: 0;
  border: 2px solid transparent;
  border-top-color: var(--nm-accent);
  border-right-color: var(--nm-neon-cyan);
  border-radius: 50%;
  animation: spin-ring 1.5s linear infinite;
}
@keyframes spin-ring {
  to { transform: rotate(360deg); }
}

.loading-title {
  font-family: var(--nm-font-heading);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: 0.35em;
  color: var(--nm-text);
  margin-bottom: 8px;
}
.loading-subtitle {
  font-family: var(--nm-font-body);
  font-size: 0.75rem;
  color: var(--nm-text-dim);
  letter-spacing: 0.2em;
  margin-bottom: 20px;
}

#loading-bar-bg {
  width: 200px;
  height: 2px;
  background: rgba(123, 104, 238, 0.15);
  border-radius: 1px;
  overflow: hidden;
}
#loading-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--nm-accent), var(--nm-neon-cyan));
  border-radius: 1px;
  transition: width 0.3s ease;
  box-shadow: 0 0 8px var(--nm-accent);
}

/* ══════════════════════════
   HEADER BAR
   ══════════════════════════ */
#header-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(123, 104, 238, 0.15);
  box-shadow: 0 1px 20px rgba(123, 104, 238, 0.05);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.header-logo {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid var(--nm-accent-dim);
  box-shadow: 0 0 10px rgba(123, 104, 238, 0.3);
}
.header-title {
  font-family: var(--nm-font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--nm-text);
}

.header-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
#header-datetime {
  font-family: var(--nm-font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--nm-text-dim);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.header-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--nm-font-body);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--nm-neon-green);
  letter-spacing: 0.12em;
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}
.status-dot--online {
  background: var(--nm-neon-green);
  box-shadow: 0 0 6px var(--nm-neon-green), 0 0 12px rgba(0, 255, 106, 0.3);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.header-agents {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--nm-font-body);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--nm-text-dim);
  letter-spacing: 0.1em;
}
.agents-icon {
  font-size: 0.8rem;
}

/* ══════════════════════════
   BOTTOM NAVIGATION BAR
   ══════════════════════════ */
#bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding: 0 8px;
  background: rgba(10, 10, 26, 0.65);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(123, 104, 238, 0.12);
}

.nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 6px 12px;
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  transition: all 0.2s ease;
  border-radius: 8px;
}
.nav-btn:hover {
  background: rgba(123, 104, 238, 0.08);
}
.nav-icon {
  font-size: 1.2rem;
  line-height: 1;
}
.nav-label {
  font-family: var(--nm-font-body);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--nm-text-dim);
  text-transform: uppercase;
  transition: color 0.2s ease;
}

/* Active nav button */
.nav-btn.active .nav-label {
  color: var(--nm-accent-bright);
}
.nav-btn.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: var(--nm-accent);
  box-shadow: 0 0 10px var(--nm-accent), 0 0 20px rgba(123, 104, 238, 0.4);
}

/* ══════════════════════════
   PANEL OVERLAY
   ══════════════════════════ */
#panel-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 900;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
#panel-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

/* ══════════════════════════
   SIDE PANEL
   ══════════════════════════ */
#side-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: var(--panel-width);
  height: 100%;
  background: var(--nm-panel-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-left: 1px solid var(--nm-border);
  z-index: 950;
  transform: translateX(100%);
  transition: transform 0.3s ease-out;
  display: flex;
  flex-direction: column;
  font-family: var(--nm-font-body);
  color: var(--nm-text);
}
#side-panel.open {
  transform: translateX(0);
}

/* Panel header */
#panel-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--nm-border);
  flex-shrink: 0;
  min-height: 52px;
}
.panel-agent-info {
  display: flex;
  align-items: center;
  gap: 10px;
}
.panel-agent-orb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--nm-accent);
  box-shadow: 0 0 8px currentColor;
  flex-shrink: 0;
}
.panel-agent-name {
  font-family: var(--nm-font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--nm-text);
}

#panel-close {
  background: none;
  border: 1px solid var(--nm-border);
  color: var(--nm-text-dim);
  font-size: 0.9rem;
  width: 30px;
  height: 30px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  font-family: var(--nm-font-body);
}
#panel-close:hover {
  color: #ff4466;
  border-color: rgba(255, 68, 102, 0.4);
  background: rgba(255, 68, 102, 0.08);
}

/* Panel content area */
#panel-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}

/* ── Panel inner sections ── */
.panel-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--nm-border);
  flex-wrap: wrap;
}
.panel-header h2 {
  font-family: var(--nm-font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--nm-text);
  margin: 0;
}

.panel-status {
  font-family: var(--nm-font-body);
  font-size: 0.65rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.panel-status--active {
  background: rgba(0, 255, 106, 0.1);
  color: var(--nm-neon-green);
  border: 1px solid rgba(0, 255, 106, 0.2);
}
.panel-status--idle {
  background: rgba(123, 104, 238, 0.1);
  color: var(--nm-accent);
  border: 1px solid var(--nm-border);
}
.panel-status--off {
  background: rgba(100, 100, 100, 0.1);
  color: rgba(255, 255, 255, 0.3);
  border: 1px solid rgba(100, 100, 100, 0.2);
}

.panel-flux-label {
  font-size: 0.75rem;
  color: var(--nm-accent);
  letter-spacing: 0.08em;
}

.panel-section {
  margin-bottom: 18px;
}
.panel-section h3 {
  font-family: var(--nm-font-heading);
  font-size: 0.65rem;
  color: var(--nm-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 8px;
}
.panel-section p {
  font-size: 0.85rem;
  line-height: 1.6;
  margin: 0;
  text-transform: none;
}

/* Conversation zone */
.panel-conversation {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--nm-border);
  border-radius: 10px;
  padding: 14px;
  min-height: 120px;
  max-height: 55vh;
  overflow-y: auto;
}

/* Chat bubbles */
.chat-bubble {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: 12px;
  margin-bottom: 8px;
  font-size: 0.8rem;
  line-height: 1.5;
  text-transform: none;
  letter-spacing: 0.02em;
}
.chat-bubble--agent {
  background: rgba(123, 104, 238, 0.12);
  border: 1px solid rgba(123, 104, 238, 0.15);
  border-radius: 12px 12px 12px 4px;
  color: var(--nm-text);
  margin-right: auto;
}
.chat-bubble--user {
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.12);
  border-radius: 12px 12px 4px 12px;
  color: var(--nm-text);
  margin-left: auto;
}
.chat-bubble-meta {
  font-size: 0.6rem;
  color: var(--nm-text-muted);
  margin-top: 4px;
  letter-spacing: 0.08em;
}

.panel-placeholder {
  color: var(--nm-text-dim);
  font-size: 0.78rem;
  font-style: italic;
  text-transform: none;
}

/* ── Custom scrollbar ── */
#panel-content::-webkit-scrollbar,
.panel-conversation::-webkit-scrollbar {
  width: 4px;
}
#panel-content::-webkit-scrollbar-track,
.panel-conversation::-webkit-scrollbar-track {
  background: transparent;
}
#panel-content::-webkit-scrollbar-thumb,
.panel-conversation::-webkit-scrollbar-thumb {
  background: var(--nm-accent-dim);
  border-radius: 2px;
}
#panel-content::-webkit-scrollbar-thumb:hover,
.panel-conversation::-webkit-scrollbar-thumb:hover {
  background: var(--nm-accent);
}

/* Firefox scrollbar */
#panel-content,
.panel-conversation {
  scrollbar-width: thin;
  scrollbar-color: var(--nm-accent-dim) transparent;
}

/* ══════════════════════════
   AUDIO PROMPT
   ══════════════════════════ */
#audio-prompt {
  position: fixed;
  bottom: calc(var(--nav-height) + 12px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 99;
  background: var(--nm-glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--nm-border);
  color: var(--nm-text-dim);
  font-family: var(--nm-font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  padding: 8px 20px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
}
#audio-prompt:hover {
  color: var(--nm-accent-bright);
  border-color: var(--nm-border-bright);
  box-shadow: 0 0 15px rgba(123, 104, 238, 0.15);
}

/* ══════════════════════════
   MOBILE
   ══════════════════════════ */
@media (max-width: 768px) {
  #side-panel {
    width: 100%;
    border-left: none;
    border-top: 1px solid var(--nm-border);
  }

  .header-title {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
  }

  .header-center {
    display: none;
  }

  .nav-label {
    font-size: 0.5rem;
  }
  .nav-btn {
    padding: 6px 6px;
  }
}

@media (max-width: 400px) {
  .header-agents {
    display: none;
  }
}

/* ══════════════════════════
   UTILITY ANIMATIONS
   ══════════════════════════ */
@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes slide-up {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}