body {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--cmds-w);
  grid-template-rows: auto auto auto 1fr auto;
  grid-template-areas:
    'header header header'
    'upper  upper  upper'
    'vrinfo vrinfo vrinfo'
    'sidebar room   cmds'
    'footer footer footer';
  min-height: 100vh;
}

.header {
  grid-area: header;
}

.toast-notifications {
  grid-area: header;
}

.site-footer {
  grid-area: footer;
}

#virtual-room {
  display: contents;
}

.upper-menu {
  grid-area: upper;
  position: relative;
  z-index: 10;
  height: var(--upper-menu-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 0 var(--space-5);
  background: var(--bg-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.upper-menu .information {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  min-width: 0;
}

.upper-menu .information p {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-tertiary);
  white-space: nowrap;
}

.upper-menu .information p span {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
}

.upper-menu .information p:has(#status) span {
  color: var(--success);
}

.upper-menu .actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.action-button {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border-default);
  background: var(--bg-inset);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: border-color var(--fast) var(--ease), color var(--fast) var(--ease),
    background var(--fast) var(--ease);
}

.action-button:hover {
  border-color: var(--accent-soft-border);
  color: var(--accent);
}

.action-button.is-muted {
  background: var(--danger-soft);
  border-color: rgba(255, 71, 71, 0.25);
  color: var(--danger);
}

.sidebar {
  grid-area: sidebar;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: var(--space-4);
  border-right: 1px solid var(--border-subtle);
  overflow-y: auto;
}

.sidebar h1 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  color: var(--text-secondary);
  padding: 0 var(--space-2) var(--space-3);
}

.online-users-count {
  font-weight: 400;
  color: var(--text-tertiary);
}

.online-users-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.online-user-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background var(--fast) var(--ease);
}

.online-user-item:hover {
  background: var(--bg-inset);
}

.online-user-avatar-wrap {
  position: relative;
  flex-shrink: 0;
}

.online-user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--bg-elevated);
}

.presence-dot {
  position: absolute;
  bottom: -1px;
  right: -1px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--success);
  border: 2px solid var(--bg-void);
}

.presence-dot.away {
  background: var(--accent);
}

.online-user-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.3;
}

.online-user-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.online-user-sub {
  font-size: 0.72rem;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.vr-info {
  grid-area: vrinfo;
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-evenly;
  gap: var(--space-4);
  height: var(--upper-menu-h);
  padding: 0 var(--space-5);
  background: var(--bg-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

#vr-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

#vr-users,
#vr-id {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

#vr-id {
  font-variant-numeric: tabular-nums;
  color: var(--text-tertiary);
}

.vr-users {
  grid-area: room;
  display: grid;
  align-content: start;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: var(--space-3);
  min-height: 0;
  min-width: 0;
  padding: var(--space-5);
  overflow-y: auto;
}

.vr-user-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--bg-surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color var(--fast) var(--ease), transform var(--fast) var(--ease);
}

.vr-user-card:hover {
  border-color: var(--border-strong);
}

.vr-user-avatar-wrap {
  position: relative;
  flex-shrink: 0;
}

.vr-user-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--bg-elevated);
}

.vr-user-speaking {
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 2px solid var(--success);
  opacity: 0;
  transition: opacity var(--fast) var(--ease);
}

.vr-user-card.is-speaking .vr-user-speaking {
  opacity: 1;
}

.vr-user-details {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.vr-user-realname {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.vr-user-nick {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.72rem;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.vr-user-nick .roblox-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 13px;
  height: 13px;
  border-radius: 3px;
  background: var(--bg-inset);
  border: 1px solid var(--border-default);
  font-size: 0.55rem;
  font-weight: 800;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.ingame-cmds {
  grid-area: cmds;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: var(--space-4);
  border-left: 1px solid var(--border-subtle);
  overflow-y: auto;
}

.ingame-cmds h1 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  color: var(--text-secondary);
  padding: 0 var(--space-2) var(--space-3);
}

#cmds {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cmd-item {
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  background: var(--bg-inset);
  border: 1px solid transparent;
  transition: border-color var(--fast) var(--ease);
}

.cmd-item:hover {
  border-color: var(--border-default);
}

.cmd-name {
  display: block;
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
}

.cmd-desc {
  display: block;
  margin-top: 3px;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  line-height: 1.4;
}

@media (max-width: 1180px) {
  body {
    grid-template-columns: 240px minmax(0, 1fr) 260px;
  }
}

@media (max-width: 900px) {
  body {
    grid-template-columns: 1fr;
    grid-template-areas:
      'header'
      'upper'
      'vrinfo'
      'room'
      'sidebar'
      'cmds'
      'footer';
  }

  .vr-info {
    height: auto;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2) var(--space-4);
    padding: var(--space-3) var(--space-4);
  }

  .burger-menu {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-h);
    right: 0;
    left: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-3);
    background: var(--bg-elevated);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-default);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--normal) var(--ease), transform var(--normal) var(--ease), visibility var(--normal);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-menu > a {
    padding: 10px 8px;
    border-radius: var(--radius-sm);
  }

  .nav-menu > a:hover {
    background: var(--bg-inset);
  }

  .sidebar,
  .ingame-cmds {
    border: none;
    border-top: 1px solid var(--border-subtle);
    max-height: 320px;
  }

  .upper-menu {
    height: auto;
    flex-wrap: wrap;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
  }

  .upper-menu .information {
    gap: var(--space-3);
    flex-wrap: wrap;
  }
}

@media (max-width: 520px) {
  .vr-users {
    padding: var(--space-4);
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}