/* ═══════════════════════════════════════════════════════════
   ECLYSS WEB — DASHBOARD LAYOUT
   ═══════════════════════════════════════════════════════════ */

.dashboard {
  display: flex;
  height: 100vh;
  overflow: hidden;
  background: var(--bg-primary);
}

/* ── Sidebar ─────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-subtle);
  overflow: hidden;
  transition: width var(--transition-slow);
  z-index: var(--z-sticky);
}

/* Sidebar header */
.sidebar__header {
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--sp-md);
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.sidebar__brand {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  text-decoration: none;
}

.sidebar__brand-logo {
  width: 30px; height: 30px;
  border-radius: 8px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 800;
  color: white;
  flex-shrink: 0;
}

.sidebar__brand-name {
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.4px;
  color: var(--text-primary);
}

.sidebar__header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Search bar */
.sidebar__search {
  padding: var(--sp-sm) var(--sp-md);
  flex-shrink: 0;
}

.search-input {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 8px 12px;
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
}

.search-input:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.10);
}

.search-input__icon { color: var(--text-tertiary); font-size: 14px; flex-shrink: 0; }
.search-input__field {
  flex: 1;
  background: none;
  outline: none;
  font-size: var(--text-sm);
  color: var(--text-primary);
  caret-color: var(--accent-glow);
}
.search-input__field::placeholder { color: var(--text-tertiary); }

/* Conversation tabs */
.sidebar__tabs {
  display: flex;
  padding: 0 var(--sp-md);
  gap: var(--sp-xs);
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.sidebar__tab {
  padding: 10px var(--sp-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-tertiary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.sidebar__tab:hover { color: var(--text-secondary); }
.sidebar__tab--active {
  color: var(--text-accent);
  border-bottom-color: var(--accent);
}

/* Conversation list */
.sidebar__list {
  flex: 1;
  overflow-y: auto;
  padding: var(--sp-xs) 0;
}

/* Conversation item */
.conv-item {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  padding: 10px var(--sp-md);
  cursor: pointer;
  transition: background var(--transition-fast);
  position: relative;
  border-radius: 0;
  text-decoration: none;
  color: inherit;
}

.conv-item:hover { background: var(--bg-hover); }
.conv-item--active { background: var(--bg-active); }
.conv-item--active::before {
  content: '';
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 3px;
  background: var(--gradient);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.conv-item__avatar { position: relative; flex-shrink: 0; }
.conv-item__body   { flex: 1; overflow: hidden; }
.conv-item__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2px;
}

.conv-item__name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  truncate: true;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 160px;
}

.conv-item__time {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.conv-item__preview {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-xs);
}

.conv-item__last-msg {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.conv-item__last-msg--unread { color: var(--text-primary); font-weight: 500; }
.conv-item--unread .conv-item__name { color: var(--text-primary); }
.conv-item--unread .conv-item__time { color: var(--accent-glow); }

/* ── Sidebar user card ───────────────────────────────────── */
.sidebar__user {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  padding: var(--sp-sm) var(--sp-md);
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.sidebar__user:hover { background: var(--bg-hover); }

.sidebar__user-info { flex: 1; overflow: hidden; }
.sidebar__user-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sidebar__user-status { font-size: var(--text-xs); color: var(--success); font-weight: 500; }
.sidebar__user-actions { display: flex; gap: 4px; }

/* ── Main panel ──────────────────────────────────────────── */
.main-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-primary);
}

/* Empty state */
.empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-md);
  animation: fadeIn 0.3s ease;
}

.empty-state__icon {
  width: 80px; height: 80px;
  border-radius: var(--radius-2xl);
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
}

.empty-state__title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.empty-state__subtitle {
  font-size: var(--text-md);
  color: var(--text-secondary);
  text-align: center;
  max-width: 280px;
  line-height: 1.6;
}

/* ── Group info panel ────────────────────────────────────── */
.info-panel {
  width: 280px;
  min-width: 280px;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  transition: width var(--transition-slow);
}

.info-panel.hidden {
  width: 0;
  min-width: 0;
  overflow: hidden;
}

.info-panel__header {
  padding: var(--sp-lg);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.info-panel__title {
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.3px;
}

.info-panel__section {
  padding: var(--sp-md) var(--sp-lg);
  border-bottom: 1px solid var(--border-subtle);
}

.info-panel__section-title {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: var(--sp-sm);
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 1100px) {
  .info-panel { display: none; }
}

@media (max-width: 750px) {
  .sidebar { position: absolute; left: 0; top: 0; bottom: 0; z-index: var(--z-overlay); }
  .sidebar.collapsed { transform: translateX(-100%); }
  .main-panel { width: 100%; }
}