/* ==========================================================================
   Top Bar — full-width bar above everything (forms reverse-ㄱ with icon strip)
   ========================================================================== */

#top-bar {
  flex-shrink: 0;
  height: 32px;
  background: var(--sidebar-bg);
  display: flex;
  align-items: center;
  padding: calc(var(--safe-top) + 0px) 0 0;
  position: relative;
  gap: 8px;
}

/* --- Update banner --- */
.top-bar-update {
  display: flex;
  align-items: center;
}

.top-bar-update-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: color-mix(in srgb, #3b82f6 12%, transparent);
  color: #3b82f6;
  border: none;
  border-radius: 10px;
  padding: 2px 10px;
  font-family: inherit;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  line-height: 1;
  transition: background 0.15s;
}

.top-bar-update-btn .lucide { width: 12px; height: 12px; }
.top-bar-update-btn:hover { background: color-mix(in srgb, #3b82f6 20%, transparent); }

/* --- Top bar actions (right-aligned group) --- */
.top-bar-actions {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 2px;
}

.top-bar-actions button {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  border-radius: 6px;
  color: var(--text-dimmer);
  cursor: pointer;
  padding: 3px;
  transition: color 0.15s, background 0.15s;
}

.top-bar-actions button .lucide { width: 14px; height: 14px; }
.top-bar-actions button:hover { color: var(--text-secondary); background: rgba(var(--overlay-rgb),0.06); }

#server-settings-btn.active { color: var(--text); }

/* --- Theme toggle pill switch (light/dark) --- */
.theme-toggle {
  display: flex;
  align-items: center;
  cursor: pointer;
  -webkit-app-region: no-drag;
}

.theme-toggle input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.theme-toggle-track {
  position: relative;
  width: 46px;
  height: 22px;
  border-radius: 11px;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 4px;
  box-sizing: border-box;
  transition: background 0.3s;
}

.theme-toggle-track:hover {
  background: var(--border-subtle);
}
.dark-theme .theme-toggle-track:hover {
  background: var(--text-dimmer);
}

.theme-toggle-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  z-index: 2;
  position: relative;
  transition: color 0.25s;
}

.theme-toggle-icon .lucide {
  width: 11px;
  height: 11px;
}

.theme-toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: left 0.25s cubic-bezier(0.4, 0, 0.2, 1), background 0.25s;
  z-index: 1;
}

/* Dark mode (unchecked) — thumb LEFT on moon */
.theme-toggle-moon { color: var(--bg); }           /* dark icon on lighter thumb */
.theme-toggle-sun { color: var(--text-muted); }    /* light icon on dark track */

/* Light mode (checked) — thumb RIGHT on sun */
.theme-toggle input:checked ~ .theme-toggle-track .theme-toggle-thumb {
  left: 24px;
  background: var(--bg-alt);
}

.theme-toggle input:checked ~ .theme-toggle-track .theme-toggle-moon {
  color: var(--text-muted);   /* darker icon on light track */
}

.theme-toggle input:checked ~ .theme-toggle-track .theme-toggle-sun {
  color: var(--text-dimmer);  /* darker icon on light thumb */
}

/* ==========================================================================
   Title Bar — split into sidebar-column and main-column sections
   ========================================================================== */

/* --- Sidebar section (inside #sidebar-column) --- */
.title-bar-sidebar {
  flex-shrink: 0;
  height: 48px;
  display: flex;
  align-items: center;
  padding: 0 10px;
  background: var(--sidebar-bg);
  border-bottom: 1px solid var(--border-subtle);
  gap: 6px;
}

.sidebar-presence {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  margin-left: auto;
}

.sidebar-presence-avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--sidebar-bg);
  background: var(--bg-alt);
  margin-left: -6px;
  cursor: default;
}

.sidebar-presence-avatar:first-child {
  margin-left: 0;
}

.sidebar-presence-more {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--sidebar-bg);
  background: var(--bg-alt);
  margin-left: -6px;
  font-size: 9px;
  font-weight: 700;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.title-bar-project-dropdown {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  min-width: 0;
  background: none;
  border: none;
  padding: 4px 8px;
  margin: -4px -8px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s;
  font-family: inherit;
}

.title-bar-project-dropdown:hover {
  background: rgba(var(--overlay-rgb), 0.06);
}

.title-bar-project-icon {
  display: none;
  font-size: 18px;
  line-height: 1;
  flex-shrink: 0;
}

.title-bar-project-icon.has-icon {
  display: inline-flex;
  align-items: center;
}

.title-bar-project-icon .emoji {
  width: 18px;
  height: 18px;
  vertical-align: middle;
  filter:
    drop-shadow(1px 0 0 rgba(0,0,0,0.25))
    drop-shadow(-1px 0 0 rgba(0,0,0,0.25))
    drop-shadow(0 1px 0 rgba(0,0,0,0.25))
    drop-shadow(0 -1px 0 rgba(0,0,0,0.25))
    drop-shadow(0 0 4px rgba(255,255,255,0.35));
}

.title-bar-project-name {
  font-family: "Pretendard", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 17px;
  font-weight: 800;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

.title-bar-chevron {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--text-secondary);
  transition: transform 0.2s;
}

.title-bar-project-dropdown.open .title-bar-chevron {
  transform: rotate(180deg);
}

.project-rename-input {
  width: 100%;
  font-family: "Pretendard", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 17px;
  font-weight: 800;
  color: var(--text);
  background: var(--bg-alt);
  border: 1px solid var(--accent);
  border-radius: 4px;
  padding: 1px 4px;
  outline: none;
  min-width: 0;
}

/* --- Content section (inside #main-column) --- */
.title-bar-content {
  flex-shrink: 0;
  height: 48px;
  display: flex;
  align-items: center;
  padding: 0 16px;
  min-width: 0;
  border-bottom: 1px solid var(--border-subtle);
  overflow: visible;
}

.title-bar-content #header-left {
  display: flex;
  align-items: center;
  overflow: hidden;
  min-width: 0;
  flex: 1;
}

.title-bar-content .status {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
  flex: 1;
  flex-shrink: 0;
  overflow: visible;
}

/* --- Mobile --- */
@media (max-width: 768px) {
  #top-bar {
    display: none !important;
  }

  #sidebar-column {
    width: 0 !important;
    min-width: 0 !important;
    overflow: visible;
  }
}

/* ==========================================================================
   Header Indicators (Context Bar, Rate Limit, Fast Mode)
   ========================================================================== */

/* --- Context bar --- */
.header-context {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: 80px;
  cursor: default;
  position: relative;
}

.header-context-bar {
  flex: 1;
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.header-context-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.3s ease, background 0.3s ease;
}

.header-context-fill.warn { background: var(--warning); }
.header-context-fill.danger { background: var(--error); }

.header-context-label {
  font-family: "Roboto Mono", monospace;
  font-size: 10px;
  color: var(--text-dimmer);
  white-space: nowrap;
}

/* --- Context usage popover --- */
.context-usage-popover {
  position: absolute;
  top: calc(100% + 10px);
  right: -12px;
  width: 320px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  font-size: 12px;
  color: var(--text-secondary);
  box-shadow: 0 4px 16px rgba(var(--shadow-rgb), 0.4);
  z-index: 200;
  animation: ctx-popover-in 0.12s ease-out;
  line-height: 1.5;
}

.context-usage-popover.hidden { display: none; }

@keyframes ctx-popover-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Header */
.ctx-pop-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 12px;
}

.ctx-pop-model {
  font-size: 12px;
  color: var(--text-muted);
  font-family: "Roboto Mono", monospace;
}

.ctx-pop-pct {
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  font-family: "Roboto Mono", monospace;
  letter-spacing: -0.5px;
}

.ctx-pop-tokens {
  font-size: 11px;
  color: var(--text-muted);
  font-family: "Roboto Mono", monospace;
  margin-left: 6px;
  font-weight: 400;
}

/* Stacked category bar */
.ctx-cat-bar {
  display: flex;
  height: 10px;
  border-radius: 5px;
  overflow: hidden;
  background: var(--border);
  margin-bottom: 12px;
  gap: 1px;
}

.ctx-cat-bar > div {
  height: 100%;
  min-width: 3px;
  transition: width 0.3s ease;
  border-radius: 2px;
}

/* Category legend */
.ctx-cat-legend {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin-bottom: 4px;
}

.ctx-cat-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  font-size: 12px;
  padding: 3px 0;
  border-radius: 4px;
  transition: background 0.1s ease;
}

.ctx-cat-item:hover {
  background: rgba(var(--overlay-rgb), 0.03);
}

.ctx-emoji {
  display: inline-block;
  filter: grayscale(1);
  font-size: 12px;
  transition: filter 0.15s ease;
}

.ctx-cat-item:hover .ctx-emoji,
.ctx-pop-row:hover .ctx-emoji,
.ctx-pop-note .ctx-emoji {
  filter: grayscale(0);
}

.ctx-cat-name {
  color: var(--text-secondary);
}

.ctx-cat-value {
  font-family: "Roboto Mono", monospace;
  color: var(--text-muted);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

/* Sections */
.ctx-pop-divider {
  border: none;
  height: 1px;
  background: var(--border-subtle);
  margin: 10px 0;
}

.ctx-pop-section-label {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.8px;
  margin-bottom: 6px;
  font-weight: 500;
}

.ctx-pop-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  padding: 3px 0;
  border-radius: 4px;
  transition: background 0.1s ease;
}

.ctx-pop-row:hover {
  background: rgba(var(--overlay-rgb), 0.03);
}

.ctx-pop-row-label {
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-right: 12px;
}

.ctx-pop-row-value {
  font-family: "Roboto Mono", monospace;
  color: var(--text-muted);
  font-size: 11px;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

.ctx-pop-note {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 10px;
  text-align: center;
  padding: 4px 8px;
  background: var(--border-subtle);
  border-radius: 4px;
  font-family: "Roboto Mono", monospace;
}

@media (max-width: 400px) {
  .context-usage-popover {
    width: 260px;
    right: -8px;
  }
}

/* --- Shared pill style for rate limit & fast mode --- */
.header-rate-limit,
.header-fast-mode {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
  user-select: none;
}

.header-rate-limit .lucide,
.header-fast-mode .lucide {
  width: 12px;
  height: 12px;
}

.header-pill-text {
  line-height: 1;
}

/* Rate limit wrapper for popover positioning */
.header-rate-limit-wrap {
  position: relative;
  display: inline-flex;
  overflow: visible;
}

/* Rate limit states */
.header-rate-limit.warning {
  background: color-mix(in srgb, var(--warning) 12%, transparent);
  color: var(--warning);
}

.header-rate-limit.rejected {
  background: color-mix(in srgb, var(--error) 12%, transparent);
  color: var(--error);
}

/* Rate limit external link icon */
.rate-limit-link {
  display: inline-flex;
  align-items: center;
  color: inherit;
  opacity: 0.6;
  margin-left: 2px;
  transition: opacity 0.15s;
}

.rate-limit-link:hover {
  opacity: 1;
}

.rate-limit-link .lucide {
  width: 10px;
  height: 10px;
}

/* Rate limit popover */
.rate-limit-popover {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  background: color-mix(in srgb, var(--warning) 15%, var(--bg));
  color: var(--warning);
  border: 1px solid color-mix(in srgb, var(--warning) 25%, transparent);
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
  animation: popover-in 0.2s ease-out;
  z-index: 100;
  pointer-events: none;
}

.rate-limit-popover.rejected {
  background: color-mix(in srgb, var(--error) 15%, var(--bg));
  color: var(--error);
  border-color: color-mix(in srgb, var(--error) 25%, transparent);
}

.rate-limit-popover.fade-out {
  opacity: 0;
  transition: opacity 0.3s;
}

@keyframes popover-in {
  from { opacity: 0; transform: translateX(-50%) translateY(-4px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Fast mode states */
.header-fast-mode.cooldown {
  background: color-mix(in srgb, var(--warning) 12%, transparent);
  color: var(--warning);
}

.header-fast-mode.active {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
}

/* Hide pills on very narrow screens */
@media (max-width: 400px) {
  .header-pill-text { display: none; }
  .header-rate-limit,
  .header-fast-mode { padding: 3px; }
  .rate-limit-popover { font-size: 11px; padding: 6px 10px; }
  .header-context { width: 50px; }
}