/* ── Sidebar ─────────────────────────────────────────── */
#sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  background: var(--sidebar); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; height: 100vh; overflow: hidden;
  transition: transform .3s var(--ease), width .3s var(--ease);
  position: relative; z-index: 10;
}
#sidebar.collapsed { width: 0; transform: translateX(-100%); }

.sb-head     { padding: 16px 12px 12px; display: flex; flex-direction: column; gap: 10px; }
.sb-logo     { display: flex; align-items: center; gap: 9px; padding: 4px 8px; }
.sb-logo-mark {
  width: 26px; height: 26px; border-radius: 8px;
  background: var(--bg3);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.sb-logo-mark img { width: 100%; height: 100%; object-fit: contain; }
.sb-logo-name { font-size: 14px; font-weight: 600; color: var(--text); }

.btn-new {
  display: flex; align-items: center; gap: 9px;
  padding: 9px 12px; background: var(--accent-glow);
  border: 1px solid rgba(59,130,246,.25);
  border-radius: var(--radius); color: var(--accent2);
  font-family: var(--font); font-size: 13px; font-weight: 500;
  cursor: pointer; flex: 1; transition: background .2s, border-color .2s;
}
.btn-new:hover { background: rgba(59,130,246,.25); border-color: rgba(59,130,246,.4); }

.sb-btns {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-agents {
  display: flex; align-items: center; gap: 9px;
  padding: 9px 12px; background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text2);
  font-family: var(--font); font-size: 13px; font-weight: 500;
  cursor: pointer; flex: 1; transition: background .2s, border-color .2s, color .2s;
}
.btn-agents:hover {
  background: var(--bg3);
  border-color: var(--border2);
  color: var(--text);
}

.sb-section {
  padding: 10px 12px 4px;
  font-size: 10.5px; font-weight: 600; letter-spacing: .08em;
  text-transform: uppercase; color: var(--text3);
}

/* Chat List */
.chat-list { flex: 1; overflow-y: auto; padding: 2px 8px 8px; }
.chat-list::-webkit-scrollbar       { width: 3px; }
.chat-list::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

.chat-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px; border-radius: var(--radius-sm);
  cursor: pointer; transition: background .15s; position: relative;
}
.chat-item:hover   { background: var(--bg3); }
.chat-item.active  { background: var(--accent-glow); border: 1px solid rgba(59,130,246,.2); }
.ci-icon           { flex-shrink: 0; color: var(--text3); }
.chat-item.active .ci-icon { color: var(--accent2); }
.ci-title {
  flex: 1; font-size: 13px; color: var(--text2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.chat-item.active .ci-title { color: var(--accent2); font-weight: 500; }
.ci-menu-btn {
  background: none; border: none; cursor: pointer;
  color: var(--text3); padding: 4px; border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s, color .15s; flex-shrink: 0;
  position: relative;
}
.ci-menu-btn:hover { background: var(--bg4); color: var(--text); }

/* Chat Item Dropdown Menu */
.ci-dropdown {
  position: absolute; right: 0; top: 100%;
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: 0 8px 32px rgba(0,0,0,.3);
  padding: 6px; min-width: 140px; z-index: 100;
  opacity: 0; visibility: hidden; transform: translateY(-4px);
  transition: all 0.15s ease;
}
.ci-dropdown.show {
  opacity: 1; visibility: visible; transform: translateY(4px);
}
.ci-dropdown-item {
  display: flex; align-items: center; gap: 8px;
  width: 100%; padding: 8px 10px; border: none; background: none;
  border-radius: var(--radius-sm); cursor: pointer;
  font-family: var(--font); font-size: 13px; color: var(--text);
  transition: background .15s;
}
.ci-dropdown-item:hover { background: var(--bg3); }
.ci-dropdown-item svg { flex-shrink: 0; color: var(--text2); }
.ci-dropdown-danger { color: var(--danger); }
.ci-dropdown-danger svg { color: var(--danger); }
.ci-dropdown-danger:hover { background: rgba(248,113,113,.1); }

/* Sidebar Bottom */
.sb-bottom {
  padding: 6px 8px 10px; border-top: 1px solid var(--border);
  padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px));
  display: flex; flex-direction: column; gap: 1px; flex-shrink: 0;
}
.sb-btn {
  display: flex; align-items: center; gap: 9px;
  padding: 9px 10px; background: none; border: none; border-radius: var(--radius-sm);
  cursor: pointer; font-family: var(--font); font-size: 13px;
  color: var(--text2); width: 100%; transition: background .15s, color .15s;
}
.sb-btn:hover { background: var(--bg3); color: var(--text); }
.sb-btn .sb-badge {
  margin-left: auto; background: var(--accent-glow); color: var(--accent2);
  border-radius: 10px; font-size: 11px; font-weight: 600;
  padding: 1px 7px; min-width: 20px; text-align: center;
}

/* Pollinations credit in sidebar */
.sb-pollinations-credit { margin: 8px 10px 8px; padding-top: 10px; border-top: 1px solid rgba(255,255,255,.05); }
.sb-pollen-link {
  display: flex; align-items: center; gap: 10px; text-decoration: none;
  border-radius: 10px; padding: 10px 12px;
  border: 1px solid rgba(255,120,20,.35); background: rgba(255,100,10,.05);
  transition: background .15s, border-color .2s; width: 100%; box-sizing: border-box;
}
.sb-pollen-link:hover   { background: rgba(255,100,10,.1); border-color: rgba(255,120,20,.65); }
.sb-pollen-logo         { display: block; flex-shrink: 0; filter: invert(60%) sepia(80%) saturate(300%) hue-rotate(5deg) brightness(1.2); opacity: .9; }
.sb-pollen-text         { display: flex; flex-direction: column; gap: 1px; flex: 1; }
.sb-pollen-built        { font-size: 10.5px; color: rgba(255,255,255,.55); letter-spacing: .03em; }
.sb-pollen-name         { font-size: 13px; font-weight: 600; color: rgba(255,140,30,.95); letter-spacing: .02em; }

/* Sidebar overlay (mobile) */
#sb-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 9; display: none; }
#sb-overlay.visible { display: block; }

/* Light theme overrides */
[data-theme="light"] .sb-btn           { color: var(--text2); }
[data-theme="light"] .sb-btn:hover     { background: var(--bg4); color: var(--text); }
[data-theme="light"] .ci-title         { color: var(--text2); }
[data-theme="light"] .btn-new          { background: rgba(37,99,235,.10); border-color: rgba(37,99,235,.28); color: var(--accent); }
[data-theme="light"] .btn-agents       { background: transparent; border-color: var(--border); color: var(--text2); }
[data-theme="light"] .btn-agents:hover { background: var(--bg4); border-color: var(--border2); color: var(--text); }
[data-theme="light"] .chat-item.active { background: rgba(37,99,235,.10); border-color: rgba(37,99,235,.22); }
[data-theme="light"] .sb-pollen-link   { border-color: rgba(180,100,0,.3); background: rgba(255,140,0,.07); }
[data-theme="light"] .sb-pollen-name   { color: rgba(150,75,0,.95); }
[data-theme="light"] .sb-pollen-built  { color: rgba(0,0,0,.5); }
[data-theme="light"] .ci-menu-btn:hover { background: var(--bg4); }
[data-theme="light"] .ci-dropdown { background: var(--bg2); border-color: var(--border); }
[data-theme="light"] .ci-dropdown-item:hover { background: var(--bg4); }