/* ═══════════════════════════════════════════════════════════
   ZIM — MAIN CSS  (v2 redesign)
   Modern, clean, uncluttered layout
════════════════════════════════════════════════════════════ */

/* ─── Design Tokens ─────────────────────────────────────── */
:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-full: 9999px;

  --transition-fast: 130ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 220ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 300ms cubic-bezier(0.34, 1.56, 0.64, 1);

  --sidebar-width: 268px;
  --topbar-height: 44px;
  --chat-header-height: 50px;

  --shadow-xs: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.18);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.24);
}

/* ─── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── Scrollbar ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-thumb-hover); }

/* ─── App Shell ──────────────────────────────────────────── */
.app-container {
  display: flex;
  height: 100vh;
  overflow: hidden;
  position: relative;
}

/* ═══════════════════════════════════════════════════════════
   SIDEBAR
════════════════════════════════════════════════════════════ */
.sidebar {
  width: var(--sidebar-width);
  min-width: 220px;
  max-width: 380px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 10;
  flex-shrink: 0;
  transition: width var(--transition-normal);
}

/* Resize handle */
.sidebar-resize-handle {
  position: absolute;
  top: 0; right: -3px;
  width: 6px; height: 100%;
  cursor: col-resize;
  z-index: 20;
}
.sidebar-resize-handle:hover { background: var(--accent-primary); opacity: 0.25; }

/* ─── Brand ──────────────────────────────────────────────── */
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 16px 16px 12px;
  color: var(--text-primary);
  flex-shrink: 0;
}
.brand-logo {
  color: var(--accent-primary);
  display: flex;
  align-items: center;
}
.brand-name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}
.brand-version {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-tertiary);
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
}
.sidebar-collapse-btn {
  margin-left: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px; height: 24px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  opacity: 0;
}
.sidebar:hover .sidebar-collapse-btn { opacity: 1; }
.sidebar-collapse-btn:hover { background: var(--bg-hover); color: var(--text-primary); }

/* ─── Mode Switcher ──────────────────────────────────────── */
.mode-switcher {
  display: flex;
  gap: 3px;
  padding: 0 12px;
  margin-bottom: 10px;
  flex-shrink: 0;
}
.mode-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 10px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font-sans);
  transition: all var(--transition-fast);
}
.mode-btn:hover { background: var(--bg-hover); color: var(--text-secondary); }
.mode-btn.active {
  background: var(--accent-code-bg);
  color: var(--accent-primary);
}
.mode-btn.active[data-mode="cowork"] {
  background: var(--accent-cowork-bg);
  color: var(--accent-cowork);
}

/* ─── Actions Bar ────────────────────────────────────────── */
.sidebar-actions-bar {
  padding: 0 12px 8px;
  flex-shrink: 0;
}
.new-chat-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  width: 100%;
  padding: 8px 12px;
  background: var(--accent-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.new-chat-btn:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.new-chat-btn:active { transform: translateY(0); }

/* ─── Search ─────────────────────────────────────────────── */
.sidebar-search-wrap {
  position: relative;
  padding: 0 12px 8px;
  flex-shrink: 0;
}
.search-icon {
  position: absolute;
  left: 22px;
  top: 50%;
  transform: translateY(-60%);
  color: var(--text-tertiary);
  pointer-events: none;
}
.sidebar-search {
  width: 100%;
  padding: 7px 10px 7px 30px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 12px;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color var(--transition-fast);
}
.sidebar-search:focus { border-color: var(--accent-primary); }
.sidebar-search::placeholder { color: var(--text-placeholder); }

/* ─── Conversation List ──────────────────────────────────── */
.conversation-list {
  flex: 1;
  overflow-y: auto;
  padding: 2px 8px;
}
.conv-group-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 8px 8px 4px;
}
.conversation-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
  position: relative;
  group: true;
}
.conversation-item:hover { background: var(--bg-hover); }
.conversation-item.active { background: var(--bg-active); }
.conversation-item.active .conv-title { color: var(--text-primary); }
.conv-title {
  flex: 1;
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.4;
}
.conv-time {
  font-size: 10px;
  color: var(--text-tertiary);
  flex-shrink: 0;
}
.conv-delete {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0;
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 3px 5px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  line-height: 1;
  transition: all var(--transition-fast);
}
.conversation-item:hover .conv-delete { opacity: 1; }
.conv-delete:hover { color: var(--danger); background: var(--danger-bg); }

/* ─── Sidebar Nav (bottom) ───────────────────────────────── */
.sidebar-nav {
  display: flex;
  gap: 2px;
  padding: 8px 8px 4px;
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
}
.sidebar-nav-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 7px 6px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 10px;
  font-weight: 500;
  font-family: var(--font-sans);
  transition: all var(--transition-fast);
}
.sidebar-nav-btn:hover { background: var(--bg-hover); color: var(--text-secondary); }
.sidebar-nav-btn.active { background: var(--bg-active); color: var(--accent-primary); }

/* ─── Sidebar Footer ─────────────────────────────────────── */
.sidebar-footer {
  padding: 8px 14px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.session-stats {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: var(--text-tertiary);
}
.stat-item {
  display: flex;
  align-items: center;
  gap: 3px;
}
.stat-sep { opacity: 0.4; }
.connection-status {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
}
.status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--danger);
  flex-shrink: 0;
}
.status-dot.connected { background: var(--success); }
.status-dot.connecting { background: var(--warning); animation: pulse 1.5s infinite; }
.status-text { color: var(--text-tertiary); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ═══════════════════════════════════════════════════════════
   SLIDE-OVER PANELS (Settings / Integrations)
════════════════════════════════════════════════════════════ */
.slide-panel {
  position: fixed;
  top: 0; bottom: 0;
  left: 0;
  width: 100%;
  max-width: 360px;
  background: var(--bg-panel);
  border-right: 1px solid var(--border-primary);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transform: translateX(-100%);
  transition: transform var(--transition-normal);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.slide-panel.open {
  transform: translateX(0);
}
.slide-panel-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.35);
  z-index: 40;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}
.slide-panel-backdrop.visible {
  opacity: 1;
  pointer-events: all;
}
.slide-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}
.slide-panel-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.slide-panel-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px; height: 28px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.slide-panel-close:hover { background: var(--bg-hover); color: var(--text-primary); }
.slide-panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
}
.slide-panel-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.5;
}

/* ─── Settings Sections ──────────────────────────────────── */
.settings-section {
  margin-bottom: 20px;
  padding: 14px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}
.settings-section-header {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 12px;
}
.settings-save-bar {
  padding-top: 4px;
  padding-bottom: 8px;
}
.settings-save-bar .btn-primary {
  width: 100%;
  justify-content: center;
  padding: 10px;
}
.form-inline-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

/* ─── Toggle Switch ──────────────────────────────────────── */
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.toggle-row:last-child { border-bottom: none; padding-bottom: 0; }
.toggle-row:first-of-type { padding-top: 0; }
.toggle-info { display: flex; flex-direction: column; gap: 1px; }
.toggle-label { font-size: 13px; font-weight: 500; color: var(--text-primary); }
.toggle-desc { font-size: 11px; color: var(--text-tertiary); }
.toggle-switch { position: relative; display: inline-flex; flex-shrink: 0; cursor: pointer; }
.toggle-switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.toggle-track {
  display: block;
  width: 36px; height: 20px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-primary);
  transition: all var(--transition-fast);
  position: relative;
}
.toggle-track::after {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 14px; height: 14px;
  background: var(--text-tertiary);
  border-radius: 50%;
  transition: all var(--transition-fast);
}
.toggle-switch input:checked + .toggle-track {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}
.toggle-switch input:checked + .toggle-track::after {
  transform: translateX(16px);
  background: #fff;
}

/* ─── Theme Picker ───────────────────────────────────────── */
.theme-picker {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.theme-swatch {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 8px 4px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 10px;
  font-weight: 500;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  transition: all var(--transition-fast);
}
.theme-swatch:hover { border-color: var(--border-hover); color: var(--text-primary); }
.theme-swatch.active { border-color: var(--accent-primary); color: var(--accent-primary); }
.swatch-preview {
  width: 32px; height: 20px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.08);
}
.dark-preview { background: linear-gradient(135deg, #1a1b2e 50%, #6c8cff 100%); }
.midnight-preview { background: linear-gradient(135deg, #0c0e18 50%, #58a6ff 100%); }
.light-preview { background: linear-gradient(135deg, #ffffff 50%, #4f6df5 100%); border-color: rgba(0,0,0,0.1); }
.solarized-preview { background: linear-gradient(135deg, #002b36 50%, #268bd2 100%); }

/* ─── Integration Cards ──────────────────────────────────── */
.integration-section-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin: 16px 0 8px;
}
.integration-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: 8px;
  transition: border-color var(--transition-fast);
}
.integration-card:not(.disabled):hover { border-color: var(--border-hover); }
.integration-card.disabled { opacity: 0.5; }
.integration-card.connected { border-color: var(--success); background: rgba(110,231,160,0.04); }
.integration-card-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.integration-card-icon.github { background: rgba(255,255,255,0.06); color: var(--text-primary); }
.integration-card-icon.figma { background: rgba(242,78,30,0.1); }
.integration-card-icon.slack { background: rgba(74,21,75,0.15); }
.integration-card-icon.linear { background: rgba(94,106,210,0.15); }
.integration-card-info { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.integration-card-name { font-size: 13px; font-weight: 600; color: var(--text-primary); }
.integration-card-desc { font-size: 11px; color: var(--text-tertiary); }
.integration-card-btn {
  padding: 5px 12px;
  border-radius: var(--radius-md);
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font-sans);
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}
.btn-connect {
  background: var(--accent-primary);
  color: #fff;
}
.btn-connect:hover { background: var(--accent-hover); }
.btn-disconnect {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-primary);
}
.btn-disconnect:hover { background: var(--danger-bg); color: var(--danger); border-color: var(--danger); }
.int-badge {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}
.int-badge.disconnected { background: var(--bg-tertiary); color: var(--text-tertiary); }
.int-badge.connected { background: rgba(110,231,160,0.12); color: var(--success); }
.int-badge.soon { background: var(--bg-tertiary); color: var(--text-tertiary); }

/* ═══════════════════════════════════════════════════════════
   MAIN CONTENT
════════════════════════════════════════════════════════════ */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

/* ─── Topbar ─────────────────────────────────────────────── */
.topbar {
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  background: var(--bg-topbar);
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
  gap: 6px;
}
.topbar-left {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow: hidden;
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.topbar-divider {
  width: 1px;
  height: 18px;
  background: var(--border-subtle);
  margin: 0 4px;
  flex-shrink: 0;
}
.topbar-workspace {
  font-size: 11px;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 240px;
}

/* ─── Tool Buttons ───────────────────────────────────────── */
.tool-group {
  display: flex;
  align-items: center;
  gap: 2px;
}
.tool-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font-sans);
  transition: all var(--transition-fast);
  white-space: nowrap;
  flex-shrink: 0;
}
.tool-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.tool-btn.active { background: var(--accent-code-bg); color: var(--accent-primary); }

/* Multi-Agent button — highlighted */
.tool-btn-multi-agent {
  background: var(--accent-multi-bg);
  color: var(--accent-multi);
  border: 1px solid var(--accent-multi-border);
  position: relative;
}
.tool-btn-multi-agent:hover {
  background: var(--accent-multi);
  color: #fff;
  border-color: var(--accent-multi);
}
.tool-btn-badge {
  font-size: 9px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: var(--radius-full);
  background: var(--accent-multi);
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.4;
}
.tool-btn-multi-agent:hover .tool-btn-badge { background: rgba(255,255,255,0.25); }

/* Integration buttons in topbar */
.tool-btn-integration { position: relative; }
.int-dot {
  position: absolute;
  top: 3px; right: 3px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--success);
  border: 1.5px solid var(--bg-topbar);
  display: none;
}
.int-dot.visible { display: block; }

/* ─── Content Area ───────────────────────────────────────── */
.content-area {
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* ═══════════════════════════════════════════════════════════
   CHAT
════════════════════════════════════════════════════════════ */
.chat-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

/* ─── Chat Header ────────────────────────────────────────── */
.chat-header {
  height: var(--chat-header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-primary);
  flex-shrink: 0;
}
.chat-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.chat-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 300px;
}
.chat-model-pill {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-tertiary);
  background: var(--bg-tertiary);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  flex-shrink: 0;
}
.chat-agent-badge {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(110,231,160,0.1);
  color: var(--success);
  flex-shrink: 0;
}
.chat-header-right {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
.hdr-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font-sans);
  transition: all var(--transition-fast);
}
.hdr-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.hdr-btn-danger:hover { background: var(--danger-bg); color: var(--danger); }

/* ─── Messages ───────────────────────────────────────────── */
.messages-container {
  flex: 1;
  overflow-y: auto;
  padding: 24px 24px 8px;
  position: relative;
}

/* Scroll to bottom */
.scroll-to-bottom-btn {
  position: absolute;
  bottom: 110px; right: 28px;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-md);
}
.scroll-to-bottom-btn:hover { background: var(--accent-primary); color: #fff; border-color: var(--accent-primary); }
.scroll-to-bottom-btn.hidden { display: none; }

/* ─── Welcome Screen ─────────────────────────────────────── */
.welcome-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100%;
  text-align: center;
  padding: 40px 24px;
  position: relative;
}
.welcome-glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 400px; height: 300px;
  background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.welcome-logo {
  color: var(--accent-primary);
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}
.welcome-screen h1 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: -0.03em;
  position: relative;
  z-index: 1;
}
.welcome-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  max-width: 420px;
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

/* Feature pills */
.welcome-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-bottom: 28px;
  max-width: 520px;
  position: relative;
  z-index: 1;
}
.welcome-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
}
.welcome-pill-new {
  background: var(--accent-multi-bg);
  border-color: var(--accent-multi-border);
  color: var(--accent-multi);
}
.welcome-pill-figma {
  background: rgba(242,78,30,0.08);
  border-color: rgba(242,78,30,0.2);
  color: #f24e1e;
}
.welcome-pill-github {
  background: rgba(255,255,255,0.04);
  border-color: var(--border-subtle);
  color: var(--text-secondary);
}

/* Suggestions */
.welcome-suggestions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  max-width: 600px;
  width: 100%;
  position: relative;
  z-index: 1;
}
.suggestion-chip {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}
.suggestion-chip:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* ─── Input Area ─────────────────────────────────────────── */
.input-area {
  padding: 10px 20px 14px;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
}
.input-wrapper {
  background: var(--bg-input);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: 10px 12px 8px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.input-wrapper:focus-within {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.message-input {
  display: block;
  width: 100%;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.55;
  resize: none;
  outline: none;
  min-height: 24px;
  max-height: 200px;
}
.message-input::placeholder { color: var(--text-placeholder); }
.input-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  gap: 8px;
}
.input-toolbar-left, .input-toolbar-right {
  display: flex;
  align-items: center;
  gap: 4px;
}
.input-tool-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px; height: 28px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.input-tool-btn:hover { background: var(--bg-hover); color: var(--text-secondary); }
.input-hint {
  font-size: 10px;
  color: var(--text-tertiary);
  text-align: center;
  margin-top: 6px;
}

/* ═══════════════════════════════════════════════════════════
   FORM ELEMENTS
════════════════════════════════════════════════════════════ */
.form-group {
  margin-bottom: 12px;
}
.form-group:last-child { margin-bottom: 0; }
.form-group label {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 5px;
  letter-spacing: 0.01em;
}
.form-input, .form-select {
  width: 100%;
  padding: 8px 10px;
  background: var(--bg-input);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color var(--transition-fast);
}
.form-input:focus, .form-select:focus { border-color: var(--accent-primary); }
.form-select { cursor: pointer; }
.form-range {
  width: 100%;
  margin-top: 4px;
  accent-color: var(--accent-primary);
}
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.test-result {
  margin-top: 8px;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
}
.test-result.success { background: rgba(110,231,160,0.1); color: var(--success); }
.test-result.error { background: var(--danger-bg); color: var(--danger); }

/* ═══════════════════════════════════════════════════════════
   BUTTONS
════════════════════════════════════════════════════════════ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--accent-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.btn-secondary:hover { background: var(--bg-hover); border-color: var(--border-hover); }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-danger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--danger);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.btn-icon:hover { background: var(--bg-hover); color: var(--text-primary); }

/* Send / Stop */
.send-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--accent-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.send-btn:hover { background: var(--accent-hover); }
.stop-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--danger);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
}

/* ═══════════════════════════════════════════════════════════
   MULTI-AGENT MODAL
════════════════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
  animation: fadeIn 0.15s ease;
}
.modal-overlay.hidden { display: none; }
.modal-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-xl);
  animation: slideUp 0.2s var(--transition-spring);
  overflow: hidden;
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.modal-card-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border-subtle);
}
.modal-card-icon {
  width: 42px; height: 42px;
  border-radius: var(--radius-md);
  background: var(--accent-multi-bg);
  color: var(--accent-multi);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--accent-multi-border);
}
.modal-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 2px;
}
.modal-card-subtitle {
  font-size: 12px;
  color: var(--text-secondary);
}
.modal-close-btn {
  margin-left: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px; height: 28px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}
.modal-close-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.modal-card-body { padding: 16px 20px 20px; }
.agent-config-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}
.agent-config-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}
.agent-config-card:hover { border-color: var(--border-hover); }
.agent-config-icon { font-size: 20px; width: 32px; text-align: center; flex-shrink: 0; }
.agent-config-info { flex: 1; display: flex; flex-direction: column; gap: 1px; }
.agent-config-name { font-size: 13px; font-weight: 600; color: var(--text-primary); }
.agent-config-desc { font-size: 11px; color: var(--text-tertiary); }
.modal-card-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}
.modal-card-actions .btn-primary { padding: 9px 20px; }
.modal-card-actions .btn-secondary { padding: 9px 16px; }

/* ═══════════════════════════════════════════════════════════
   UTILITIES
════════════════════════════════════════════════════════════ */
.hidden { display: none !important; }

/* AWS Config Prompt */
.aws-config-prompt {
  position: relative;
  z-index: 1;
  margin-top: 24px;
}
.aws-prompt-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  text-align: center;
  max-width: 360px;
}
.aws-prompt-icon {
  color: var(--accent-primary);
  margin-bottom: 12px;
}
.aws-prompt-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.aws-prompt-card p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.5;
}

/* File Explorer Config Prompt */
.file-tree-config-prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 16px;
  text-align: center;
}
.config-prompt-icon {
  color: var(--text-tertiary);
  margin-bottom: 12px;
}
.file-tree-config-prompt p {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 14px;
  line-height: 1.5;
}
.file-tree-empty {
  padding: 20px;
  text-align: center;
  color: var(--text-tertiary);
  font-size: 12px;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ─── Message Mode Badges ────────────────────────────────── */
.message-mode-badge {
  display: inline-flex;
  align-items: center;
  margin-left: 6px;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  vertical-align: middle;
}
.message-mode-badge.mode-code {
  background: var(--accent-code-bg, rgba(108,140,255,0.12));
  color: var(--accent-primary, #6c8cff);
}
.message-mode-badge.mode-cowork {
  background: var(--accent-cowork-bg, rgba(180,142,255,0.12));
  color: var(--accent-cowork, #b48eff);
}
.message-mode-badge.mode-amazon-q {
  background: rgba(245,158,11,0.12);
  color: #f59e0b;
}


@media (max-width: 900px) {
  .welcome-suggestions { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .sidebar {
    position: absolute;
    left: -100%;
    top: 0; bottom: 0;
    z-index: 100;
    transition: left var(--transition-normal);
  }
  .sidebar.open { left: 0; }
  .welcome-suggestions { grid-template-columns: 1fr 1fr; }
  .tool-btn span { display: none; }
  .tool-btn { padding: 5px 8px; }
}
@media (max-width: 480px) {
  .welcome-suggestions { grid-template-columns: 1fr; }
  .welcome-pills { gap: 4px; }
}

/* ═══════════════════════════════════════════════════════════
   DEMO MODE
════════════════════════════════════════════════════════════ */

.demo-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 32px;
  background: linear-gradient(90deg, #f59e0b, #d97706);
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: 12px;
  font-weight: 600;
  z-index: 10001;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
}

.demo-badge {
  background: #000;
  color: #f59e0b;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.05em;
}

.demo-timer-label {
  font-variant-numeric: tabular-nums;
}

#demo-timer {
  font-weight: 800;
  font-family: var(--font-mono);
}

.demo-note {
  font-size: 11px;
  opacity: 0.8;
}

.demo-exit-btn {
  background: rgba(0,0,0,0.2);
  border: none;
  color: #000;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.demo-exit-btn:hover {
  background: rgba(0,0,0,0.3);
}

/* Adjust app when demo banner is visible */
body:has(.demo-banner) .app-container {
  margin-top: 32px;
  height: calc(100vh - 32px);
}

body:has(.demo-banner) .slide-panel {
  top: 32px;
  height: calc(100vh - 32px);
}

.demo-data-notice {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  margin-bottom: 14px;
  font-size: 12px;
  color: #f59e0b;
  text-align: center;
}

/* Demo Modal */
.demo-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10002;
  padding: 20px;
  animation: fadeIn 0.15s ease;
}

.demo-modal {
  background: var(--bg-panel);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-xl);
  animation: slideUp 0.2s var(--transition-spring);
  overflow: hidden;
}

.demo-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.demo-modal-header h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.demo-modal-content {
  padding: 20px;
}

.demo-activate-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.demo-activate-form p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

.demo-activate-form input {
  padding: 12px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 15px;
  text-align: center;
  letter-spacing: 0.1em;
  font-weight: 600;
  font-family: var(--font-mono);
  outline: none;
  transition: border-color var(--transition-fast);
}

.demo-activate-form input:focus {
  border-color: var(--accent-primary);
}

.demo-activate-form input::placeholder {
  color: var(--text-placeholder);
  letter-spacing: normal;
  font-weight: normal;
  font-family: var(--font-sans);
}

.demo-activate-error {
  color: var(--danger);
  font-size: 12px;
  text-align: center;
}

.demo-restriction,
.demo-expired,
.demo-exit-confirm {
  text-align: center;
  padding: 10px 0;
}

.demo-restriction p,
.demo-expired p,
.demo-exit-confirm p {
  margin: 0 0 14px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.demo-restriction p:first-child {
  font-size: 15px;
  color: var(--text-primary);
}

.demo-exit-buttons {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 8px;
}

/* Demo activation button in sidebar */
.demo-activate-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  padding: 8px 12px;
  background: linear-gradient(90deg, #f59e0b, #d97706);
  color: #000;
  border: none;
  border-radius: var(--radius-md);
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: 8px;
}

.demo-activate-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}