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

/* ── Theme Variables ─────────────────────────────────────────────────────────
   Each [data-theme] block overrides only the variables that change.
   All components reference only var(--*) so switching theme is instant.     */

:root {
  /* DARK (default) */
  --bg:           #101114;
  --bg-rgb:       16,17,20;
  --bg-surface:   #1a1c21;
  --bg-elevated:  #23262d;
  --bg-tool:      #17191e;
  --border:       rgba(255,255,255,.1);
  --border-focus: rgba(10,132,255,.5);
  --text:         #eef0f5;
  --text-muted:   #a2a7b4;
  --text-user:    #fff;
  --accent:       #4da3ff;
  --user-bg:      #0a84ff;
  --ai-bg:        #23262d;
  --success:      #30d158;
  --error:        #ff453a;
  --warning:      #ffd60a;
  --hljs-theme: url('https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/github-dark.min.css');
  /* sizes */
  --radius:       18px;
  --radius-sm:    10px;
  --header-h:     52px;
  --footer-h:     62px;
  --font-mono:    'JetBrains Mono', 'Fira Code', 'Cascadia Code', ui-monospace, monospace;
  --font-size:    16px;
}

[data-theme="light"] {
  --bg:           #f2f4f8;
  --bg-rgb:       242,244,248;
  --bg-surface:   #ffffff;
  --bg-elevated:  #e7ebf3;
  --bg-tool:      #f5f7fb;
  --border:       rgba(17,24,39,.12);
  --border-focus: rgba(0,122,255,.4);
  --text:         #1c1f27;
  --text-muted:   #667085;
  --text-user:    #fff;
  --accent:       #007aff;
  --user-bg:      #007aff;
  --ai-bg:        #ffffff;
  --success:      #34c759;
  --error:        #ff3b30;
  --warning:      #ff9f0a;
}

[data-theme="oled"] {
  --bg:           #07080a;
  --bg-rgb:       7,8,10;
  --bg-surface:   #111318;
  --bg-elevated:  #1a1d24;
  --bg-tool:      #0d1015;
  --border:       rgba(255,255,255,.08);
  --text:         #f7f9fc;
  --text-muted:   #8c93a3;
  --accent:       #4da3ff;
  --user-bg:      #0a84ff;
  --ai-bg:        #1a1d24;
}

[data-theme="dracula"] {
  --bg:           #252734;
  --bg-rgb:       37,39,52;
  --bg-surface:   #313446;
  --bg-elevated:  #3b3f56;
  --bg-tool:      #232634;
  --border:       rgba(163,176,255,.22);
  --text:         #f8f8f2;
  --text-muted:   #9aa4d6;
  --accent:       #c6a8ff;
  --user-bg:      #7380bc;
  --ai-bg:        #3b3f56;
  --success:      #50fa7b;
  --error:        #ff6b6b;
  --warning:      #ffb86c;
}

[data-theme="nord"] {
  --bg:           #343b48;
  --bg-rgb:       52,59,72;
  --bg-surface:   #424b5c;
  --bg-elevated:  #4b5568;
  --bg-tool:      #313845;
  --border:       rgba(216,222,233,.14);
  --text:         #eef2f7;
  --text-muted:   #a6b2c8;
  --accent:       #90c7d8;
  --user-bg:      #6489b7;
  --ai-bg:        #4b5568;
  --success:      #a3be8c;
  --error:        #d16f78;
  --warning:      #ebcb8b;
}

[data-theme="catppuccin"] {
  --bg:           #252639;
  --bg-rgb:       37,38,57;
  --bg-surface:   #2f3147;
  --bg-elevated:  #3a3d57;
  --bg-tool:      #23253a;
  --border:       rgba(205,214,244,.12);
  --text:         #d8def8;
  --text-muted:   #b4bcda;
  --accent:       #d5b4ff;
  --user-bg:      #8cb8ff;
  --ai-bg:        #3a3d57;
  --success:      #a6e3a1;
  --error:        #f4a0b7;
  --warning:      #f9e2af;
}

/* ── Font sizes ──────────────────────────────────────────────────────────────── */
[data-font="sm"] { --font-size: 14px; }
[data-font="md"] { --font-size: 16px; }
[data-font="lg"] { --font-size: 18px; }

/* ── Base ────────────────────────────────────────────────────────────────────── */
html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: var(--font-size);
  line-height: 1.5;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background .25s, color .25s;
}

/* ── Layout ──────────────────────────────────────────────────────────────────── */
#header {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--header-h);
  padding: 0 10px;
  padding-top: env(safe-area-inset-top);
  background: rgba(var(--bg-rgb, 10,10,11),.88);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  gap: 6px;
  z-index: 100;
}

#messages {
  position: fixed;
  top: var(--header-h);
  bottom: var(--footer-h);
  left: 0; right: 0;
  overflow-y: auto;
  padding: 16px 12px 8px;
  display: flex; flex-direction: column; gap: 6px;
  scroll-behavior: smooth;
}

.attachments {
  position: fixed;
  bottom: var(--footer-h);
  left: 0; right: 0;
  padding: 8px 12px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  display: flex; gap: 8px; flex-wrap: wrap;
  z-index: 99;
}
.attachments.hidden { display: none; }

#footer {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  padding: 8px 8px;
  padding-bottom: calc(8px + env(safe-area-inset-bottom));
  background: rgba(var(--bg-rgb, 10,10,11),.88);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-top: 1px solid var(--border);
  display: flex; align-items: flex-end; gap: 6px;
  z-index: 100;
}

/* ── Header ──────────────────────────────────────────────────────────────────── */
.header-left, .header-right {
  display: flex; align-items: center; gap: 6px;
  flex-shrink: 0;
}
.header-center {
  flex: 1; min-width: 0;
  display: flex; align-items: center; justify-content: center;
}
.header-title {
  font-size: 17px; font-weight: 700; letter-spacing: -.3px;
  color: var(--text);
}

.status-dot {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
  transition: background .3s;
}
.status-dot.connected    { background: var(--success); }
.status-dot.connecting   { background: var(--warning); animation: pulse 1s infinite; }
.status-dot.disconnected { background: var(--error); }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.3} }

/* ── Model chip ──────────────────────────────────────────────────────────────── */
.model-chip {
  display: flex; align-items: center; gap: 5px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 10px 5px 12px;
  cursor: pointer; color: var(--text);
  font-size: 12.5px; font-weight: 500;
  max-width: 220px; min-width: 80px;
  overflow: hidden;
  transition: background .15s, border-color .15s;
  white-space: nowrap;
}
.model-chip:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.15); }
#model-chip-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.chip-think {
  font-size: 10px; font-weight: 700; letter-spacing: .4px; text-transform: uppercase;
  background: rgba(10,132,255,.18); color: var(--accent);
  border-radius: 6px; padding: 1px 5px; flex-shrink: 0;
}
.chip-think.hidden { display: none; }
.chip-chevron { width: 12px; height: 12px; flex-shrink: 0; color: var(--text-muted); }

/* ── Buttons ──────────────────────────────────────────────────────────────────── */
.icon-btn {
  background: none; border: none; cursor: pointer;
  font-size: 18px; padding: 4px 5px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  transition: background .15s, color .15s;
  line-height: 1; flex-shrink: 0;
}
.icon-btn:hover { background: rgba(255,255,255,.08); color: var(--text); }
.icon-btn.active { color: var(--accent); }

.send-btn, .stop-btn {
  width: 36px; height: 36px;
  border-radius: 50%; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: opacity .15s, transform .1s;
}
.send-btn { background: var(--accent); color: #fff; }
.send-btn svg { width: 15px; height: 15px; }
.send-btn:hover { opacity: .85; }
.send-btn:active { transform: scale(.92); }
.send-btn:disabled { opacity: .35; cursor: default; }
.stop-btn { background: var(--error); color: #fff; }
.stop-btn svg { width: 15px; height: 15px; }
.stop-btn.hidden { display: none; }

/* ── Input ────────────────────────────────────────────────────────────────────── */
.input-wrap { flex: 1; min-width: 0; }
#input {
  width: 100%; min-height: 36px; max-height: 180px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 18px;
  color: var(--text);
  font-size: var(--font-size); line-height: 1.4;
  padding: 8px 14px;
  resize: none; outline: none;
  font-family: inherit;
  transition: border-color .15s, background .15s;
  overflow-y: auto; display: block;
}
#input:focus { border-color: var(--border-focus); }
#input::placeholder { color: var(--text-muted); }

/* ── Panel overlay (shared) ──────────────────────────────────────────────────── */
.panel-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 150;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}
.panel-overlay.hidden { display: none; }

/* ── Drop panels (model + settings) ─────────────────────────────────────────── */
.drop-panel {
  position: fixed;
  top: var(--header-h);
  left: 50%; transform: translateX(-50%);
  width: min(500px, calc(100vw - 16px));
  max-height: calc(100dvh - var(--header-h) - 24px);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
  z-index: 160;
  display: flex; flex-direction: column;
  overflow: hidden;
  animation: panelIn .18s ease;
}
.drop-panel.hidden { display: none; }

#sessions-panel {
  top: 0;
  left: 0;
  bottom: 0;
  transform: none;
  width: min(380px, calc(100vw - 18px));
  max-height: 100dvh;
  border-top: none;
  border-left: none;
  border-radius: 0 var(--radius) var(--radius) 0;
  animation: drawerIn .18s ease;
}
#sessions-panel .panel-header {
  padding-top: calc(12px + env(safe-area-inset-top));
}
@keyframes drawerIn {
  from { opacity: 0; transform: translateX(-14px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes panelIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-8px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 14px 10px; border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.panel-title { font-size: 14px; font-weight: 600; color: var(--text); }
.panel-close {
  background: none; border: none; cursor: pointer; font-size: 16px;
  color: var(--text-muted); padding: 2px 6px; border-radius: 6px;
  transition: background .15s; line-height: 1;
}
.panel-close:hover { background: rgba(255,255,255,.08); color: var(--text); }

.panel-section-label {
  font-size: 10px; font-weight: 700; letter-spacing: .8px; text-transform: uppercase;
  color: var(--text-muted); padding: 10px 14px 5px; flex-shrink: 0;
}

/* ── Collapsible model panel sections ────────────────────────────────────────── */
.panel-section-group {
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
.panel-section-group:first-of-type { border-top: none; }
.panel-section-toggle {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 14px 10px;
  background: none; border: none; cursor: pointer;
  color: var(--text); font-size: 12px; font-weight: 700;
  letter-spacing: .8px; text-transform: uppercase;
}
.panel-section-toggle:hover { background: rgba(255,255,255,.03); }
.section-chevron {
  color: var(--text-muted);
  transition: transform .18s ease;
  font-size: 12px;
}
.panel-section-group.collapsed .section-chevron { transform: rotate(-90deg); }
.panel-section-body { padding-bottom: 10px; }
.panel-section-group.collapsed .panel-section-body { display: none; }
.panel-search-wrap { padding: 0 14px 10px; }
.panel-search-input {
  width: 100%;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 13px;
  outline: none;
}
.panel-search-input:focus { border-color: var(--border-focus); }
.panel-search-input::placeholder { color: var(--text-muted); }
.panel-search-wrap-top { padding-top: 12px; }
.panel-actions-row {
  display: flex;
  gap: 8px;
  padding: 0 14px 12px;
}
.panel-primary-btn {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.panel-primary-btn:hover { opacity: .9; }
.sessions-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 0 14px 14px;
  overflow-y: auto;
  min-height: 120px;
}
.session-item {
  width: 100%;
  text-align: left;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px 10px 10px;
  cursor: pointer;
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 10px;
  position: relative;
}
.session-item:hover { border-color: rgba(255,255,255,.18); }
.session-item.active {
  border-color: var(--accent);
  background: rgba(10,132,255,.1);
}
.session-item.needs-attention {
  border-color: rgba(255,214,10,.48);
  box-shadow: 0 0 0 1px rgba(255,214,10,.12) inset;
}
.session-item.latest-update:not(.active):not(.needs-attention) {
  border-color: rgba(77,163,255,.35);
}
.session-marker {
  width: 4px;
  align-self: stretch;
  border-radius: 999px;
  background: transparent;
  flex-shrink: 0;
}
.session-marker.marker-attention { background: var(--warning); }
.session-marker.marker-latest { background: var(--accent); }
.session-item-main { min-width: 0; flex: 1; }
.session-item-topline {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.session-item-title {
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
}
.session-item-time {
  font-size: 10px;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}
.session-item-subtitle {
  margin-top: 3px;
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.session-item-flags {
  margin-top: 7px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}
.session-flag {
  font-size: 9px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: .35px;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 3px 6px;
  background: rgba(255,255,255,.06);
  color: var(--text-muted);
}
.flag-current { background: rgba(10,132,255,.16); color: var(--accent); }
.flag-progress { background: rgba(48,209,88,.16); color: var(--success); }
.flag-attention { background: rgba(255,214,10,.18); color: var(--warning); }
.flag-latest { background: rgba(77,163,255,.14); color: var(--accent); }
.session-item-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  font-size: 10px;
  color: var(--text-muted);
  flex-shrink: 0;
  min-width: 62px;
}
.session-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--text-muted);
  display: inline-block;
}
.session-item-meta.status-complete .session-status-dot { background: var(--success); }
.session-item-meta.status-in_progress .session-status-dot { background: var(--warning); animation: pulse 1s infinite; }
.session-item-meta.status-waiting .session-status-dot { background: var(--warning); }
.session-item-meta.status-idle .session-status-dot { background: var(--text-muted); }

/* ── Provider tabs ───────────────────────────────────────────────────────────── */
.provider-tabs {
  display: flex; flex-wrap: wrap; gap: 6px;
  padding: 2px 14px 10px; flex-shrink: 0;
}
.provider-tab {
  padding: 5px 12px; border-radius: 12px;
  font-size: 12px; font-weight: 500;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-muted);
  cursor: pointer; white-space: nowrap; transition: all .15s;
}
.provider-tab:hover { color: var(--text); border-color: rgba(255,255,255,.15); }
.provider-tab.active {
  background: var(--accent); border-color: var(--accent);
  color: #fff; font-weight: 600;
}

/* ── Model list ──────────────────────────────────────────────────────────────── */
.model-list {
  flex: 1; overflow-y: auto;
  padding: 2px 8px 8px;
  display: flex; flex-direction: column; gap: 2px;
  min-height: 80px; max-height: 240px;
}
.model-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: 10px; cursor: pointer;
  border: 1px solid transparent; transition: background .12s;
}
.model-item:hover { background: rgba(255,255,255,.05); }
.model-item.active {
  background: rgba(10,132,255,.1); border-color: rgba(10,132,255,.25);
}
.model-item.no-auth { opacity: .4; cursor: not-allowed; }
.model-info { flex: 1; min-width: 0; }
.model-name { font-size: 13px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.model-id   { font-size: 11px; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.model-badge {
  font-size: 10px; font-weight: 700; padding: 2px 6px;
  border-radius: 5px; flex-shrink: 0; text-transform: uppercase; letter-spacing: .3px;
}
.badge-think  { background: rgba(10,132,255,.12); color: var(--accent); }
.badge-noauth { background: rgba(255,255,255,.05); color: var(--text-muted); }
.model-check  { color: var(--accent); font-size: 15px; flex-shrink: 0; font-weight: 700; }
.model-no-auth-tip {
  font-size: 12px; color: var(--text-muted);
  text-align: center; padding: 12px;
}

/* ── Thinking levels ─────────────────────────────────────────────────────────── */
#thinking-section { flex-shrink: 0; border-top: 1px solid var(--border); }
#thinking-section .panel-section-toggle { padding-bottom: 8px; }
.thinking-levels { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 14px 14px; }
.think-btn {
  padding: 5px 14px; border-radius: 12px; border: 1px solid var(--border);
  background: var(--bg-elevated); color: var(--text-muted);
  font-size: 12px; font-weight: 500; cursor: pointer; transition: all .15s; text-transform: capitalize;
}
.think-btn:hover { color: var(--text); border-color: rgba(255,255,255,.15); }
.think-btn.active {
  background: rgba(10,132,255,.12); border-color: var(--accent);
  color: var(--accent); font-weight: 600;
}

/* ── Settings panel internals ────────────────────────────────────────────────── */
#settings-panel { overflow-y: auto; }

.theme-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px;
  padding: 4px 14px 12px;
}
.theme-swatch {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 10px 6px;
  border-radius: 10px; border: 2px solid var(--border);
  background: var(--bg-elevated); cursor: pointer; transition: all .15s;
  font-size: 12px; color: var(--text-muted);
}
.theme-swatch:hover { border-color: rgba(255,255,255,.2); color: var(--text); }
.theme-swatch.active { border-color: var(--accent); color: var(--accent); }

.swatch-preview {
  width: 40px; height: 24px; border-radius: 6px; display: block;
  border: 1px solid rgba(255,255,255,.1);
}
.sw-dark       { background: linear-gradient(135deg, #0a0a0b 50%, #0a84ff 50%); }
.sw-light      { background: linear-gradient(135deg, #f2f2f7 50%, #007aff 50%); }
.sw-oled       { background: linear-gradient(135deg, #000 50%, #0a84ff 50%); }
.sw-dracula    { background: linear-gradient(135deg, #282a36 50%, #bd93f9 50%); }
.sw-nord       { background: linear-gradient(135deg, #2e3440 50%, #88c0d0 50%); }
.sw-catppuccin { background: linear-gradient(135deg, #1e1e2e 50%, #cba6f7 50%); }

.font-size-row {
  display: flex; gap: 8px; padding: 4px 14px 12px;
}
.size-btn {
  flex: 1; padding: 8px 4px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg-elevated);
  color: var(--text-muted); cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  transition: all .15s;
}
.size-btn:hover { color: var(--text); border-color: rgba(255,255,255,.15); }
.size-btn.active { border-color: var(--accent); color: var(--accent); background: rgba(10,132,255,.1); }
.size-btn[data-size="sm"] { font-size: 14px; }
.size-btn[data-size="md"] { font-size: 17px; }
.size-btn[data-size="lg"] { font-size: 21px; }
.size-label { font-size: 10px; font-weight: 600; letter-spacing: .3px; }

.toggle-list { padding: 2px 14px 12px; display: flex; flex-direction: column; gap: 0; }
.toggle-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 0; border-bottom: 1px solid var(--border); cursor: pointer;
}
.toggle-row:last-child { border-bottom: none; }
.toggle-label { font-size: 13.5px; color: var(--text); }
.toggle-check { display: none; }
.toggle-track {
  width: 44px; height: 26px; border-radius: 13px;
  background: var(--border); position: relative;
  transition: background .2s; flex-shrink: 0;
}
.toggle-check:checked + .toggle-track { background: var(--accent); }
.toggle-thumb {
  position: absolute; top: 3px; left: 3px;
  width: 20px; height: 20px; border-radius: 50%; background: #fff;
  transition: left .2s; box-shadow: 0 1px 4px rgba(0,0,0,.3);
}
.toggle-check:checked + .toggle-track .toggle-thumb { left: 21px; }

.shortcuts-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 6px;
  padding: 4px 14px 14px;
}
.shortcut-row { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--text-muted); }
kbd {
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: 5px; padding: 2px 6px; font-size: 11px; font-family: inherit;
  color: var(--text); white-space: nowrap; flex-shrink: 0;
}

/* ── Quick Tasks Panel ───────────────────────────────────────────────────────── */
.tasks-panel {
  position: fixed;
  bottom: var(--footer-h);
  left: 0; right: 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  z-index: 98;
  animation: slideUp .15s ease;
  max-height: 200px;
  display: flex; flex-direction: column;
}
.tasks-panel.hidden { display: none; }
@keyframes slideUp {
  from { opacity:0; transform: translateY(8px); }
  to   { opacity:1; transform: translateY(0); }
}
.tasks-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 12px 6px; flex-shrink: 0;
}
.tasks-title { font-size: 11px; font-weight: 700; letter-spacing: .6px; text-transform: uppercase; color: var(--text-muted); }
.tasks-close {
  background: none; border: none; cursor: pointer; font-size: 14px;
  color: var(--text-muted); padding: 2px 5px; border-radius: 4px;
}
.tasks-close:hover { color: var(--text); }
.tasks-grid {
  display: flex; flex-wrap: wrap; gap: 6px;
  padding: 2px 12px 10px;
  overflow-y: auto;
}
.task-chip {
  display: flex; align-items: center; gap: 5px;
  padding: 5px 11px; border-radius: 14px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  font-size: 12.5px; color: var(--text); cursor: pointer;
  transition: all .12s; white-space: nowrap;
}
.task-chip:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ── Messages ────────────────────────────────────────────────────────────────── */
.msg-row {
  display: flex; max-width: 100%;
}
.msg-row.user      { justify-content: flex-end; }
.msg-row.assistant { justify-content: flex-start; }
.msg-row.system    { justify-content: center; }

.msg-outer { display: flex; flex-direction: column; max-width: min(75%, 600px); gap: 3px; }
.msg-row.user .msg-outer { align-items: flex-end; }
.msg-row.assistant .msg-outer { align-items: flex-start; }

.bubble {
  padding: 10px 14px;
  border-radius: var(--radius);
  word-break: break-word; overflow-wrap: anywhere;
}
body.compact-mode .bubble { padding: 7px 12px; }

.msg-row.user .bubble {
  background: var(--user-bg); color: var(--text-user);
  border-bottom-right-radius: 4px;
}
.msg-row.assistant .bubble {
  background: var(--ai-bg); color: var(--text);
  border-bottom-left-radius: 4px;
}
.msg-row.assistant .bubble:empty,
.msg-row.assistant .bubble:empty + .msg-actions { display: none; }

/* Message action bar (copy, retry, timestamp) */
.msg-actions {
  display: flex; align-items: center; gap: 4px;
  opacity: 0; transition: opacity .15s;
}
.msg-outer:hover .msg-actions,
body.show-timestamps .msg-actions { opacity: 1; }
.msg-action-btn {
  background: none; border: none; cursor: pointer;
  font-size: 12px; padding: 2px 6px; border-radius: 6px;
  color: var(--text-muted); transition: background .12s, color .12s;
  display: flex; align-items: center; gap: 3px; white-space: nowrap;
}
.msg-action-btn:hover { background: var(--bg-elevated); color: var(--text); }
.msg-timestamp {
  display: none;
  font-size: 10px; color: var(--text-muted);
  padding: 0 4px;
}
body.show-timestamps .msg-timestamp { display: block !important; }

/* User bubble images/files */
.bubble img.msg-img { max-width: 100%; border-radius: 10px; margin-top: 6px; display: block; }
.bubble .file-pill {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(0,0,0,.2); border-radius: 8px;
  padding: 4px 10px; font-size: 13px; margin-top: 6px;
}

/* System messages */
.system-msg {
  font-size: 12px; color: var(--text-muted);
  padding: 2px 10px; background: rgba(255,255,255,.04);
  border-radius: 20px;
}

/* ── Streaming cursor ─────────────────────────────────────────────────────────── */
.streaming-cursor::after {
  content: '▋'; animation: blink .7s step-start infinite;
  color: var(--accent); margin-left: 1px;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

body.hide-thinking .thinking-block { display: none !important; }
body.hide-intermediate .tool-block,
body.hide-intermediate .msg-row.system { display: none !important; }

/* ── Thinking block ───────────────────────────────────────────────────────────── */
.thinking-block {
  margin-bottom: 8px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); overflow: hidden;
}
.thinking-toggle {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 10px; cursor: pointer;
  font-size: 12px; color: var(--text-muted);
  background: rgba(255,255,255,.03); user-select: none;
}
.thinking-toggle:hover { background: rgba(255,255,255,.06); }
.thinking-content {
  padding: 8px 12px; font-size: 13px; color: var(--text-muted);
  font-style: italic; line-height: 1.55; white-space: pre-wrap;
  display: none; border-top: 1px solid var(--border);
}
.thinking-block.open .thinking-content { display: block; }
.thinking-chevron { transition: transform .2s; }
.thinking-block.open .thinking-chevron { transform: rotate(90deg); }

/* ── Tool block ───────────────────────────────────────────────────────────────── */
.tool-block {
  width: 100%; border: 1px solid var(--border);
  border-radius: var(--radius-sm); background: var(--bg-tool);
  overflow: hidden; font-family: var(--font-mono); font-size: 12.5px; margin: 4px 0;
}
.tool-header {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 12px; cursor: pointer;
  background: rgba(255,255,255,.03); user-select: none;
  border-bottom: 1px solid var(--border);
}
.tool-header:hover { background: rgba(255,255,255,.06); }
.tool-icon { font-size: 14px; flex-shrink: 0; }
.tool-name { font-weight: 600; color: var(--text-muted); font-size: 11px; text-transform: uppercase; letter-spacing: .5px; }
.tool-label { color: var(--text); font-size: 12px; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tool-status { font-size: 12px; margin-left: auto; flex-shrink: 0; }
.tool-chevron { color: var(--text-muted); transition: transform .2s; font-size: 10px; flex-shrink: 0; }
.tool-block.open .tool-chevron { transform: rotate(90deg); }
.tool-body { display: none; padding: 10px 12px; }
.tool-block.open .tool-body { display: block; }
.tool-input { color: #a8d8a8; margin-bottom: 6px; white-space: pre-wrap; word-break: break-all; }
.tool-input::before { content: '$ '; color: var(--text-muted); }
.tool-output {
  color: var(--text); white-space: pre-wrap; word-break: break-all;
  max-height: 300px; overflow-y: auto;
  padding-top: 6px; border-top: 1px solid var(--border); line-height: 1.45;
}
.tool-output.error { color: var(--error); }

/* ── Markdown ─────────────────────────────────────────────────────────────────── */
.md { line-height: 1.65; font-size: var(--font-size); }
.md > *:first-child { margin-top: 0; }
.md > *:last-child  { margin-bottom: 0; }
.md h1,.md h2,.md h3,.md h4 { font-weight: 600; margin: 14px 0 6px; line-height: 1.3; }
.md h1 { font-size: 1.3em; } .md h2 { font-size: 1.15em; }
.md h3 { font-size: 1.05em; } .md h4 { font-size: 1em; }
.md p  { margin: 6px 0; }
.md ul,.md ol { margin: 6px 0; padding-left: 22px; }
.md li { margin: 3px 0; }
.md blockquote {
  border-left: 3px solid var(--accent); margin: 8px 0; padding: 4px 12px;
  color: var(--text-muted); background: rgba(10,132,255,.06);
  border-radius: 0 6px 6px 0;
}
.md strong { font-weight: 700; } .md em { font-style: italic; }
.md code {
  font-family: var(--font-mono); font-size: .875em;
  background: rgba(255,255,255,.1); padding: 1px 5px; border-radius: 4px;
}
.md pre { margin: 8px 0; border-radius: var(--radius-sm); overflow: hidden; background: #0d1117; border: 1px solid var(--border); }
.md pre .code-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 12px; background: rgba(255,255,255,.04); border-bottom: 1px solid var(--border);
}
.md pre .code-lang { font-size: 11px; color: var(--text-muted); font-family: var(--font-mono); }
.md pre .copy-btn {
  font-size: 11px; padding: 2px 8px; border: 1px solid var(--border);
  border-radius: 4px; background: none; cursor: pointer; color: var(--text-muted);
  font-family: inherit; transition: background .15s, color .15s;
}
.md pre .copy-btn:hover { background: rgba(255,255,255,.08); color: var(--text); }
.md pre code {
  display: block; overflow-x: auto; padding: 14px; background: none;
  font-size: 12.5px; line-height: 1.55; border-radius: 0;
}
.md table { border-collapse: collapse; width: 100%; margin: 8px 0; font-size: 13px; display: block; overflow-x: auto; }
.md th { background: rgba(255,255,255,.08); font-weight: 600; }
.md th,.md td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; }
.md tr:nth-child(even) td { background: rgba(255,255,255,.03); }
.md a { color: var(--accent); text-decoration: none; }
.md a:hover { text-decoration: underline; }
.md hr { border: none; border-top: 1px solid var(--border); margin: 12px 0; }

/* Light theme: dark code blocks stay dark */
[data-theme="light"] .md pre { background: #1e1e2e; }
[data-theme="light"] .md code { background: rgba(0,0,0,.08); color: #1c1c1e; }

/* ── Attachment chip ─────────────────────────────────────────────────────────── */
.attach-chip {
  display: flex; align-items: center; gap: 6px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: 8px; padding: 4px 8px; font-size: 12.5px; max-width: 160px;
}
.attach-chip img { width: 32px; height: 32px; object-fit: cover; border-radius: 4px; }
.attach-chip .chip-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.attach-chip .chip-remove {
  background: none; border: none; cursor: pointer; color: var(--text-muted);
  font-size: 16px; line-height: 1; padding: 0 2px; flex-shrink: 0;
}
.attach-chip .chip-remove:hover { color: var(--error); }

/* ── Toast ────────────────────────────────────────────────────────────────────── */
#toast {
  position: fixed; bottom: calc(var(--footer-h) + 16px); left: 50%;
  transform: translateX(-50%);
  background: var(--bg-elevated); color: var(--text);
  border: 1px solid var(--border);
  padding: 8px 18px; border-radius: 20px;
  font-size: 13.5px; z-index: 300;
  opacity: 0; pointer-events: none; transition: opacity .3s;
  white-space: nowrap; max-width: calc(100vw - 32px);
  box-shadow: 0 4px 20px rgba(0,0,0,.3);
}
#toast.visible { opacity: 1; }
#toast.toast-error { background: var(--error); color: #fff; border-color: var(--error); }
#toast.toast-ok    { background: var(--success); color: #fff; border-color: var(--success); }

/* ── Empty state ──────────────────────────────────────────────────────────────── */
#empty-state {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 14px;
  height: 100%; color: var(--text-muted); text-align: center; padding: 24px;
  pointer-events: none;
}
#empty-state .logo { font-size: 52px; }
#empty-state h2 { font-size: 20px; font-weight: 700; color: var(--text); }
#empty-state p  { font-size: 14px; max-width: 300px; line-height: 1.6; }
#empty-state .empty-hints {
  display: flex; flex-wrap: wrap; gap: 6px;
  justify-content: center; max-width: 340px;
  pointer-events: all;
}
.empty-hint-chip {
  padding: 6px 12px; border-radius: 12px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  font-size: 12.5px; color: var(--text-muted); cursor: pointer;
  transition: all .15s;
}
.empty-hint-chip:hover { color: var(--text); border-color: var(--accent); }

/* ── Scrollbar ────────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,.12); border-radius: 3px; }

/* ── Mobile ───────────────────────────────────────────────────────────────────── */
@media (max-width: 500px) {
  .bubble { max-width: 88%; }
  .msg-outer { max-width: 88%; }
  #messages { padding: 12px 8px; }
  .shortcuts-grid { grid-template-columns: 1fr; }
  .theme-grid { grid-template-columns: repeat(3, 1fr); }
  .header-title { display: none; }
}

/* ── Persistent left session sidebar ───────────────────────────────────────── */
body.sessions-sidebar-open #sessions-panel {
  position: fixed;
  left: 0;
  top: var(--header-h);
  bottom: 0;
  transform: none;
  width: 320px;
  max-height: none;
  height: calc(100dvh - var(--header-h));
  border-top: none;
  border-left: none;
  border-bottom: none;
  border-radius: 0;
  display: flex;
  flex-direction: column;
  z-index: 90;
}
body.sessions-sidebar-open #sessions-panel .panel-header { padding-top: 12px; }
body.sessions-sidebar-open #sessions-overlay { display: none !important; }
body.sessions-sidebar-open #messages { left: 320px; }
body.sessions-sidebar-open #footer { left: 320px; }
body.sessions-sidebar-open #header { left: 320px; }
body.sessions-sidebar-open .sessions-list { flex: 1; max-height: none; }
.session-rename-btn,
.session-archive-btn,
.session-delete-btn {
  border: none;
  background: transparent;
  color: var(--text-muted);
  border-radius: 8px;
  padding: 4px 6px;
  cursor: pointer;
  opacity: .85;
  flex-shrink: 0;
}
.session-rename-btn:hover,
.session-archive-btn:hover,
.session-delete-btn:hover { background: rgba(255,255,255,.08); color: var(--text); }
@media (max-width: 859px) {
  body.sessions-sidebar-open #messages,
  body.sessions-sidebar-open #footer,
  body.sessions-sidebar-open #header { left: 0; }
  body.sessions-sidebar-open #sessions-panel.hidden { display: none; }
  body.sessions-sidebar-open #sessions-panel {
    top: 0;
    height: 100dvh;
    width: min(340px, calc(100vw - 32px));
    z-index: 180;
    border-right: 1px solid var(--border);
    border-radius: 0 var(--radius) var(--radius) 0;
  }
  body.sessions-sidebar-open #sessions-panel .panel-header { padding-top: calc(12px + env(safe-area-inset-top)); }
}
body.sessions-sidebar-open #sessions-panel {
  top: 0;
  height: 100dvh;
}
body.sessions-sidebar-open #sessions-panel .panel-header { padding-top: calc(12px + env(safe-area-inset-top)); }

/* ── Header session title + multi-column chats ─────────────────────────────── */
.session-title-header {
  max-width: min(52vw, 720px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 700;
  color: var(--text);
}
.header-right .model-chip { margin-right: 4px; }
.sessions-toolbar { padding: 8px 0 10px; }
.session-column-btn {
  border: none;
  background: rgba(77,163,255,.12);
  color: var(--accent);
  border-radius: 8px;
  padding: 4px 8px;
  cursor: pointer;
  font-weight: 800;
  flex-shrink: 0;
}
.session-column-btn:hover { background: rgba(77,163,255,.22); }
.columns-view {
  position: fixed;
  top: var(--header-h);
  bottom: 0;
  left: 0;
  right: 0;
  overflow-x: auto;
  overflow-y: hidden;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(360px, 1fr);
  gap: 10px;
  padding: 10px;
  background: var(--bg);
}
.columns-view.hidden { display: none; }
body.sessions-sidebar-open .columns-view { left: 320px; }
.chat-column {
  min-width: 320px;
  resize: horizontal;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-surface);
  display: flex;
  flex-direction: column;
}
.chat-column-head {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}
.chat-column-head strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chat-column-actions { display: flex; gap: 4px; }
.chat-column-messages {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.column-msg {
  max-width: 92%;
  padding: 9px 11px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}
.column-msg.user { align-self: flex-end; background: var(--user-bg); color: var(--text-user); }
.column-msg.assistant { align-self: flex-start; background: var(--ai-bg); color: var(--text); }
.column-empty { color: var(--text-muted); text-align: center; margin-top: 24px; }
.chat-column-attachments {
  padding: 6px 8px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.column-attach-chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 8px;
  font-size: 12px;
  color: var(--text-muted);
  cursor: pointer;
}
.chat-column-input {
  border-top: 1px solid var(--border);
  padding: 8px;
  display: flex;
  gap: 6px;
  align-items: flex-end;
}
.chat-column-input textarea {
  flex: 1;
  min-height: 36px;
  max-height: 120px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--text);
  padding: 8px 10px;
  resize: vertical;
  font-family: inherit;
}
.chat-column-input .send-btn { width: 34px; height: 34px; }
@media (max-width: 859px) {
  body.sessions-sidebar-open .columns-view { left: 0; }
  .columns-view { grid-auto-columns: minmax(300px, 92vw); }
  .header-right .model-chip { max-width: 140px; }
  .session-title-header { max-width: 34vw; }
}
.hidden { display: none !important; }

/* ── Clear selection/focus/theme indicators ───────────────────────────────── */
.header-left { cursor: pointer; border-radius: 10px; padding: 4px 6px; }
.header-left:hover { background: rgba(255,255,255,.08); }
.session-item.in-columns {
  border-color: rgba(77,163,255,.75);
  background: rgba(77,163,255,.14);
  box-shadow: 0 0 0 1px rgba(77,163,255,.20) inset;
}
.session-item.focused-column {
  outline: 2px solid var(--warning);
  outline-offset: 1px;
}
.session-marker.marker-column { background: var(--accent); }
.session-theme-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  align-self: center;
  border: 1px solid rgba(255,255,255,.35);
  flex-shrink: 0;
}
.theme-dark { background: #23262d; }
.theme-light { background: #ffffff; }
.theme-oled { background: #050505; }
.theme-dracula { background: #3b3f56; }
.theme-nord { background: #4b5568; }
.theme-catppuccin { background: #3a3d57; }
.session-column-btn { min-width: 76px; }
.chat-column.focused {
  border-color: var(--warning);
  box-shadow: 0 0 0 2px rgba(255,214,10,.25) inset;
}
.column-theme-select {
  max-width: 106px;
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px 6px;
}
.column-theme-dark { --bg-surface:#1a1c21; --bg-elevated:#23262d; --ai-bg:#23262d; --text:#eef0f5; --text-muted:#a2a7b4; --border:rgba(255,255,255,.10); }
.column-theme-light { --bg-surface:#ffffff; --bg-elevated:#e7ebf3; --ai-bg:#ffffff; --text:#1c1f27; --text-muted:#667085; --border:rgba(17,24,39,.12); }
.column-theme-oled { --bg-surface:#111318; --bg-elevated:#1a1d24; --ai-bg:#1a1d24; --text:#f7f9fc; --text-muted:#8c93a3; --border:rgba(255,255,255,.08); }
.column-theme-dracula { --bg-surface:#313446; --bg-elevated:#3b3f56; --ai-bg:#3b3f56; --text:#f8f8f2; --text-muted:#9aa4d6; --border:rgba(163,176,255,.22); }
.column-theme-nord { --bg-surface:#424b5c; --bg-elevated:#4b5568; --ai-bg:#4b5568; --text:#eef2f7; --text-muted:#a6b2c8; --border:rgba(216,222,233,.14); }
.column-theme-catppuccin { --bg-surface:#2f3147; --bg-elevated:#3a3d57; --ai-bg:#3a3d57; --text:#d8def8; --text-muted:#b4bcda; --border:rgba(205,214,244,.12); }
body:not(.sessions-sidebar-open) #sessions-panel { display: none !important; }
body:not(.sessions-sidebar-open) #messages,
body:not(.sessions-sidebar-open) #footer,
body:not(.sessions-sidebar-open) #header,
body:not(.sessions-sidebar-open) .columns-view { left: 0 !important; }

/* ── Compact intuitive session navigator overhaul ─────────────────────────── */
.sessions-toolbar.compact {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 2px 8px;
  background: var(--bg-surface);
}
.session-tool-btn {
  width: 32px;
  height: 30px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--bg-elevated);
  color: var(--text);
  cursor: pointer;
  font-weight: 800;
}
.session-tool-btn.active { color: var(--accent); border-color: var(--accent); background: rgba(77,163,255,.14); }
.session-toolbar-hint { margin-left: auto; color: var(--text-muted); font-size: 11px; }
.session-item {
  align-items: flex-start !important;
  gap: 7px !important;
  padding: 8px 8px 8px 7px !important;
  min-height: 76px;
  overflow: hidden;
}
.session-item-main { display: flex; flex-direction: column; gap: 3px; }
.session-item-topline.compact { display: flex; align-items: center; gap: 5px; min-width: 0; }
.session-item-title {
  flex: 1;
  min-width: 0;
  font-size: 13px !important;
  font-weight: 750;
  line-height: 1.15;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.session-item-subtitle {
  font-size: 11.5px !important;
  line-height: 1.25;
  -webkit-line-clamp: 1 !important;
  color: var(--text-muted);
}
.session-item-bottom { display: flex; align-items: center; gap: 7px; min-width: 0; color: var(--text-muted); font-size: 10px; }
.session-item-bottom .session-item-time { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.session-item-meta { min-width: auto !important; flex-direction: row !important; align-items: center !important; gap: 3px !important; }
.session-message-count { white-space: nowrap; }
.session-column-btn,
.session-rename-btn,
.session-archive-btn,
.session-delete-btn {
  width: 24px !important;
  min-width: 24px !important;
  height: 24px !important;
  padding: 0 !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  line-height: 1;
}
.session-column-btn { border-radius: 7px !important; }
.session-rename-btn,
.session-archive-btn,
.session-delete-btn { border-radius: 7px !important; }
.session-archive-btn:hover { background: rgba(255,214,10,.16); color: var(--warning); }
.session-delete-btn:hover { background: rgba(255,69,58,.14); color: var(--error); }
.session-item-flags { min-height: 16px; }
.session-flag.flag-column { background: rgba(77,163,255,.16); color: var(--accent); }
.session-flag.flag-complete { background: rgba(48,209,88,.16); color: var(--success); }
.session-complete-ribbon {
  position: absolute;
  top: 7px;
  right: -23px;
  transform: rotate(35deg);
  background: rgba(48,209,88,.22);
  color: var(--success);
  border: 1px solid rgba(48,209,88,.26);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .4px;
  padding: 2px 28px;
  pointer-events: none;
}
.chat-column-head { gap: 10px; }
.chat-column-head strong { flex: 1; font-size: 14px; }
.chat-column-actions { align-items: center; }
.column-model-select {
  max-width: 150px;
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px 6px;
  font-size: 11px;
}
.column-theme-select {
  width: 34px !important;
  max-width: 34px !important;
  overflow: hidden;
  padding: 4px !important;
  color: transparent;
  text-shadow: 0 0 0 var(--text);
}
.column-theme-select::before { content: '🎨'; }
.column-msg { position: relative; padding-top: 18px !important; }
.column-msg-time {
  position: absolute;
  top: 4px;
  left: 10px;
  font-size: 9px;
  color: var(--text-muted);
  opacity: .85;
}
.column-msg-copy {
  position: absolute;
  top: 3px;
  right: 6px;
  border: 0;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 11px;
}
.column-msg-copy:hover { color: var(--text); }
.chat-column-input textarea { max-height: 33vh !important; }
/* Hide older verbose new-session row; compact + in toolbar is canonical. */
.panel-actions-row { display: none !important; }
.session-order-btn {
  width: 20px;
  min-width: 20px;
  height: 24px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  border-radius: 7px;
  cursor: pointer;
  padding: 0;
  font-size: 11px;
}
.session-order-btn:hover { color: var(--text); background: rgba(255,255,255,.08); }
.column-model-select {
  width: 170px;
  max-width: 170px;
}