* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-dark: #0a0a0f;
  --card-bg: rgba(26, 26, 46, 0.9);
  --primary: #6366f1;
  --secondary: #22d3ee;
  --success: #10b981;
  --danger: #ef4444;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
}

body {
  font-family: 'Space Grotesk', sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  overflow: hidden;
}

.app-container {
  width: 100vw;
  height: 100vh;
  position: relative;
}

.map-container {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.header-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: linear-gradient(to bottom, rgba(10, 10, 15, 0.95), transparent);
  backdrop-filter: blur(10px);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 20px;
}

.app-title {
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.online-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--card-bg);
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.current-user-info {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: var(--card-bg);
  border-radius: 20px;
}

.user-memoji {
  font-size: 1.5rem;
}

.user-location {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.sidebar-toggle {
  width: 44px;
  height: 44px;
  background: var(--card-bg);
  border: none;
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 1.2rem;
  cursor: pointer;
  transition: all 0.3s;
}

.sidebar-toggle:hover {
  background: var(--primary);
}

/* User Markers */
.user-marker {
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.3s;
}

.user-marker:hover {
  transform: scale(1.1);
  z-index: 1000;
}

.marker-pulse {
  position: absolute;
  width: 60px;
  height: 60px;
  background: rgba(99, 102, 241, 0.3);
  border-radius: 50%;
  animation: marker-pulse 2s infinite;
}

.marker-pulse.current {
  background: rgba(34, 211, 238, 0.3);
}

@keyframes marker-pulse {
  0% { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(1.5); opacity: 0; }
}

.marker-avatar {
  width: 48px;
  height: 48px;
  background: var(--card-bg);
  border: 3px solid var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  position: relative;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.marker-avatar.current {
  border-color: var(--secondary);
  box-shadow: 0 4px 20px rgba(34, 211, 238, 0.4);
}

.marker-online {
  position: absolute;
  top: 0;
  right: 0;
  width: 12px;
  height: 12px;
  background: var(--success);
  border: 2px solid var(--bg-dark);
  border-radius: 50%;
}

.marker-label {
  margin-top: 4px;
  padding: 4px 8px;
  background: var(--card-bg);
  border-radius: 8px;
  font-size: 0.7rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* Sidebar */
.user-sidebar {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 320px;
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  z-index: 200;
  padding: 20px;
  overflow-y: auto;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-header h2 {
  font-size: 1.2rem;
}

.sidebar-header button {
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.2rem;
}

.user-list-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: rgba(255,255,255,0.05);
  border-radius: 12px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: all 0.3s;
}

.user-list-item:hover {
  background: rgba(99, 102, 241, 0.2);
}

.list-memoji {
  font-size: 2rem;
}

.user-details {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.user-name {
  font-weight: 600;
  font-size: 0.9rem;
}

.user-loc {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.call-btn-small {
  padding: 8px 12px;
  background: var(--primary);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s;
}

.call-btn-small:hover {
  background: var(--secondary);
}

/* Modals */
.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(10px);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.location-modal {
  background: var(--card-bg);
  border-radius: 24px;
  padding: 40px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  animation: modalIn 0.4s ease;
}

@keyframes modalIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-icon {
  font-size: 4rem;
  margin-bottom: 20px;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.location-modal h2 {
  font-size: 1.8rem;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.location-modal p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}

.memoji-picker {
  margin-bottom: 24px;
}

.picker-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.memoji-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}

.memoji-option {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.05);
  border: 2px solid transparent;
  border-radius: 12px;
  font-size: 1.5rem;
  cursor: pointer;
  transition: all 0.3s;
}

.memoji-option:hover {
  background: rgba(255,255,255,0.1);
}

.memoji-option.selected {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.2);
}

.modal-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.btn-primary {
  padding: 16px 32px;
  background: linear-gradient(135deg, var(--primary), #8b5cf6);
  border: none;
  border-radius: 12px;
  color: white;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s;
  font-family: inherit;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
  padding: 14px 28px;
  background: transparent;
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 12px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.3s;
  font-family: inherit;
}

.btn-secondary:hover {
  border-color: var(--secondary);
  color: var(--secondary);
}

/* Call Modal */
.call-modal {
  background: var(--card-bg);
  border-radius: 24px;
  width: 100%;
  max-width: 600px;
  overflow: hidden;
  animation: modalIn 0.4s ease;
}

.call-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  background: rgba(0,0,0,0.3);
}

.caller-info {
  display: flex;
  align-items: center;
  gap: 16px;
}

.caller-memoji {
  font-size: 3rem;
  background: rgba(255,255,255,0.1);
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.caller-details {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.caller-status {
  font-weight: 600;
  font-size: 1.1rem;
}

.caller-location {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.caller-time {
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.close-call {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.1);
  border: none;
  border-radius: 50%;
  color: var(--text-primary);
  font-size: 1.2rem;
  cursor: pointer;
  transition: all 0.3s;
}

.close-call:hover {
  background: var(--danger);
}

.distance-badge {
  text-align: center;
  padding: 12px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(34, 211, 238, 0.2));
  font-size: 0.9rem;
  color: var(--secondary);
}

.video-container {
  aspect-ratio: 16/9;
  background: #000;
}

.video-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.audio-visualizer {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 3px;
  height: 40px;
  padding: 10px;
  background: rgba(0,0,0,0.3);
}

.audio-bar {
  width: 4px;
  background: linear-gradient(to top, var(--primary), var(--secondary));
  border-radius: 2px;
  transition: height 0.1s ease;
}

.call-controls {
  display: flex;
  justify-content: center;
  gap: 16px;
  padding: 20px;
}

.control-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px 24px;
  background: rgba(255,255,255,0.1);
  border: none;
  border-radius: 16px;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.3s;
  font-family: inherit;
}

.control-btn:hover {
  background: rgba(255,255,255,0.2);
}

.control-btn.active {
  background: rgba(99, 102, 241, 0.3);
}

.control-btn.end-call {
  background: var(--danger);
}

.control-btn.end-call:hover {
  background: #dc2626;
}

.control-btn span {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.connection-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: rgba(0,0,0,0.2);
}

.status-dot {
  width: 8px;
  height: 8px;
  background: #f59e0b;
  border-radius: 50%;
}

.status-dot.connected {
  background: var(--success);
}

/* Footer */
.footer-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  background: linear-gradient(to top, rgba(10, 10, 15, 0.95), transparent);
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.3s;
}

.footer-link:hover {
  color: var(--primary);
}

.connection-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .header-overlay {
    padding: 12px 16px;
  }
  
  .app-title {
    font-size: 1.3rem;
  }
  
  .online-badge {
    font-size: 0.75rem;
    padding: 6px 10px;
  }
  
  .current-user-info {
    display: none;
  }
  
  .user-sidebar {
    width: 100%;
  }
  
  .location-modal, .call-modal {
    margin: 10px;
    max-width: calc(100% - 20px);
  }
  
  .memoji-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .call-controls {
    gap: 10px;
    padding: 12px;
  }
  
  .control-btn {
    padding: 12px 16px;
  }
  
  .marker-avatar {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }
}