/* ─── CSS Variables (overrideable via Style Settings plugin) ────────────────── */
:root {
  --gpt-color-openai:   #10a37f;
  --gpt-color-claude:   #7c3aed;
  --gpt-color-ollama:   #475569;
  --gpt-color-web:      #2563eb;
  --gpt-color-learn:    #f59e0b;
  --gpt-color-error:    #e74c3c;
  --gpt-color-ok-text:  #065f46;
  --gpt-color-err-text: #991b1b;
}

/* ─── Root containers ────────────────────────────────────────────────────────── */
.gpt-chat-root,
.gpt-history-root,
.gpt-projects-root {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--background-primary);
  overflow: hidden;
}

/* ─── Headers ────────────────────────────────────────────────────────────────── */
.gpt-header,
.gpt-history-header,
.gpt-projects-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--background-modifier-border);
  background: var(--background-secondary);
  flex-shrink: 0;
}
.gpt-header-icon  { font-size: 15px; color: var(--gpt-color-openai); }
.gpt-header-title {
  font-size: 13px; font-weight: 700; flex: 1;
  letter-spacing: .03em; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap;
}

/* ─── Provider selector ─────────────────────────────────────────────────────── */
.gpt-provider-selector {
  display: flex; align-items: center; gap: 5px;
  padding: 3px 8px; border-radius: 8px;
  border: 1px solid var(--background-modifier-border);
  background: var(--background-primary); color: var(--text-normal);
  cursor: pointer; font-size: 12px; font-weight: 700;
  flex: 0 0 auto; min-width: 86px; max-width: 112px;
  transition: background .15s, border-color .15s, color .15s;
  white-space: nowrap; overflow: hidden;
}
.gpt-provider-selector:hover {
  background: var(--background-modifier-hover);
}
.gpt-provider-selector--openai { border-color: color-mix(in srgb, var(--gpt-color-openai) 45%, var(--background-modifier-border)); }
.gpt-provider-selector--claude { border-color: color-mix(in srgb, var(--gpt-color-claude) 45%, var(--background-modifier-border)); }
.gpt-provider-selector--ollama { border-color: color-mix(in srgb, var(--gpt-color-ollama) 45%, var(--background-modifier-border)); }
.gpt-provider-icon { font-size: 13px; flex-shrink: 0; }
.gpt-provider-label { overflow: hidden; text-overflow: ellipsis; flex: 1; text-align: left; }
.gpt-provider-arrow { flex-shrink: 0; opacity: .55; transition: opacity .15s; }
.gpt-provider-selector:hover .gpt-provider-arrow { opacity: 1; }

/* ─── Model selector ─────────────────────────────────────────────────────────── */
.gpt-model-selector {
  display: flex; align-items: center; gap: 5px;
  padding: 3px 9px 3px 7px; border-radius: 8px;
  border: 1px solid var(--background-modifier-border);
  background: var(--background-secondary); color: var(--text-normal);
  cursor: pointer; font-size: 12px; font-weight: 600;
  flex: 1 1 120px; min-width: 96px; max-width: 220px;
  transition: background .15s, border-color .15s;
  white-space: nowrap; overflow: hidden;
}
.gpt-model-selector:hover {
  background: var(--background-modifier-hover);
  border-color: var(--interactive-accent);
}
.gpt-ms-icon  { font-size: 13px; flex-shrink: 0; }
.gpt-ms-label { overflow: hidden; text-overflow: ellipsis; flex: 1; text-align: left; }
.gpt-ms-arrow { flex-shrink: 0; opacity: .5; transition: opacity .15s; }
.gpt-model-selector:hover .gpt-ms-arrow { opacity: 1; }

/* ─── Model picker dropdown ──────────────────────────────────────────────────── */
.gpt-model-picker {
  position: fixed; z-index: 9999;
  background: var(--background-primary);
  border: 1px solid var(--background-modifier-border);
  border-radius: 10px; box-shadow: 0 8px 32px rgba(0,0,0,.25);
  padding: 6px; min-width: 220px; max-height: 420px; overflow-y: auto;
}
.gpt-provider-picker { min-width: 190px; }
.gpt-mp-header {
  font-size: 11px; font-weight: 700; color: var(--text-muted);
  padding: 4px 8px 6px; letter-spacing: .04em;
}
.gpt-mp-row {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; padding: 6px 8px; border-radius: 6px;
  border: none; background: transparent; cursor: pointer;
  text-align: left; gap: 4px; transition: background .12s;
}
.gpt-mp-row:hover       { background: var(--background-modifier-hover); }
.gpt-mp-row--active     { background: color-mix(in srgb, var(--interactive-accent) 12%, transparent); }
.gpt-mp-row--active:hover { background: color-mix(in srgb, var(--interactive-accent) 18%, transparent); }
.gpt-mp-row-left  { display: flex; flex-direction: column; gap: 1px; flex: 1; min-width: 0; }
.gpt-mp-row-name  { font-size: 12px; font-weight: 600; color: var(--text-normal); }
.gpt-mp-row-desc  { font-size: 10px; color: var(--text-muted); }
.gpt-mp-row-check { font-size: 12px; color: var(--interactive-accent); font-weight: 700; flex-shrink: 0; }
.gpt-mp-divider   { height: 1px; background: var(--background-modifier-border); margin: 4px 0; }
.gpt-provider-row { justify-content: flex-start; gap: 8px; }
.gpt-provider-row-icon { font-size: 14px; width: 18px; text-align: center; flex-shrink: 0; }

/* ─── Badges & buttons ───────────────────────────────────────────────────────── */
.gpt-rag-badge {
  font-size: 9px; font-weight: 700; padding: 2px 6px;
  border-radius: 10px; background: var(--gpt-color-openai);
  color: #fff; letter-spacing: .05em; flex-shrink: 0;
}
.gpt-icon-btn {
  background: none; border: none; cursor: pointer;
  color: var(--text-muted); padding: 4px; border-radius: 5px;
  display: flex; align-items: center; transition: all .15s;
}
.gpt-icon-btn:hover { background: var(--background-modifier-hover); color: var(--text-normal); }
.gpt-clear-btn, .gpt-pill-btn {
  font-size: 11px; padding: 3px 10px; border-radius: 20px;
  border: 1px solid var(--background-modifier-border);
  background: transparent; color: var(--text-muted);
  cursor: pointer; transition: all .2s; flex-shrink: 0;
}
.gpt-clear-btn:hover, .gpt-pill-btn:hover {
  background: var(--background-modifier-hover);
  color: var(--text-normal);
}

/* ─── Mode bar ───────────────────────────────────────────────────────────────── */
.gpt-mode-bar {
  display: flex; gap: 5px; padding: 7px 12px;
  border-bottom: 1px solid var(--background-modifier-border);
  background: var(--background-secondary); flex-shrink: 0;
}
.gpt-mode-btn {
  flex: 1; padding: 5px 3px; font-size: 11px; border-radius: 7px;
  border: 1px solid var(--background-modifier-border);
  background: transparent; color: var(--text-muted);
  cursor: pointer; transition: all .2s; white-space: nowrap;
}
.gpt-mode-btn:hover { background: var(--background-modifier-hover); color: var(--text-normal); }
.gpt-mode-btn.gpt-mode-btn--active {
  background: var(--interactive-accent);
  color: #fff;
  border-color: var(--interactive-accent);
  font-weight: 600;
}

/* ─── Context bars ───────────────────────────────────────────────────────────── */
.gpt-rag-status {
  padding: 6px 14px; font-size: 11px;
  flex-shrink: 0; border-bottom: 1px solid var(--background-modifier-border);
}
.gpt-rag-indexing {
  background: color-mix(in srgb, var(--gpt-color-learn) 12%, var(--background-secondary));
  color: #92400e;
}
.gpt-rag-ready {
  background: color-mix(in srgb, var(--gpt-color-openai) 12%, var(--background-secondary));
  color: var(--gpt-color-ok-text);
}
.gpt-manual-bar {
  display: flex; align-items: center; gap: 6px;
  padding: 5px 12px;
  background: color-mix(in srgb, #6366f1 10%, var(--background-secondary));
  border-bottom: 1px solid color-mix(in srgb, #6366f1 20%, transparent);
  font-size: 11px; flex-shrink: 0;
}
.gpt-project-bar {
  display: flex; align-items: center; gap: 6px;
  padding: 5px 12px; border-bottom: 1px solid transparent;
  font-size: 11px; flex-shrink: 0;
}
.gpt-project-bar-label {
  color: var(--text-muted); flex: 1; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap;
  font-size: 11px; font-weight: 600;
}
.gpt-chat-root .gpt-ctx-hidden,
.gpt-history-root .gpt-ctx-hidden,
.gpt-projects-root .gpt-ctx-hidden { display: none; }
.gpt-ctx-list    { color: var(--text-muted); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 11px; }
.gpt-ctx-clear   { background: none; border: none; cursor: pointer; color: var(--text-muted); padding: 0 2px; font-size: 13px; line-height: 1; }

/* ─── Chat messages ──────────────────────────────────────────────────────────── */
.gpt-messages {
  flex: 1; overflow-y: auto; padding: 14px;
  display: flex; flex-direction: column; gap: 10px;
  scrollbar-width: thin;
}
.gpt-welcome {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; height: 100%;
  color: var(--text-muted); text-align: center; gap: 6px;
}
.gpt-welcome-icon { font-size: 28px; color: var(--gpt-color-openai); opacity: .5; }
.gpt-welcome-hint { font-size: 11px; opacity: .6; }

.gpt-msg           { display: flex; flex-direction: column; gap: 2px; }
.gpt-msg-user      { align-items: flex-end; }
.gpt-msg-assistant { align-items: flex-start; }
.gpt-bubble {
  max-width: 88%; padding: 10px 14px;
  border-radius: 14px; font-size: 13px;
  line-height: 1.6; word-break: break-word;
}
.gpt-msg-user .gpt-bubble {
  background: var(--gpt-color-openai); color: #fff;
  border-bottom-right-radius: 4px;
}
.gpt-msg-assistant .gpt-bubble {
  background: var(--background-secondary);
  border: 1px solid var(--background-modifier-border);
  border-bottom-left-radius: 4px; color: var(--text-normal);
}

/* ─── Message footer ─────────────────────────────────────────────────────────── */
.gpt-msg-footer {
  display: flex; align-items: center;
  justify-content: space-between; padding: 0 4px; margin-top: 2px;
}
.gpt-msg-user .gpt-msg-footer { flex-direction: row-reverse; }
.gpt-msg-label {
  font-size: 10px; color: var(--text-faint);
  text-transform: uppercase; letter-spacing: .05em;
}
.gpt-copy-btn {
  display: flex; align-items: center; background: none;
  border: none; cursor: pointer; color: var(--text-faint);
  padding: 3px 5px; border-radius: 5px;
  transition: all .15s; opacity: 0;
}
.gpt-msg:hover .gpt-copy-btn  { opacity: 1; }
.gpt-copy-btn:hover { background: var(--background-modifier-hover); color: var(--text-normal); }
.gpt-msg-content   { user-select: text; -webkit-user-select: text; cursor: text; }
.gpt-msg-interrupted { font-size: 10px; color: var(--text-faint); margin-top: 6px; font-style: italic; }
.gpt-msg-error-line  { color: var(--gpt-color-error); font-weight: 600; }
.gpt-msg-error-detail { font-size: 10px; color: var(--text-faint); margin-top: 6px; }
.gpt-bubble .gpt-error { color: var(--gpt-color-error); }

/* ─── Loading dots ───────────────────────────────────────────────────────────── */
.gpt-loading .gpt-msg-content { display: none; }
.gpt-dots { display: flex; gap: 4px; padding: 4px 2px; align-items: center; }
.gpt-dots span {
  width: 6px; height: 6px; background: var(--text-muted);
  border-radius: 50%; animation: gpt-bounce 1.2s infinite ease-in-out;
}
.gpt-dots span:nth-child(2) { animation-delay: .2s; }
.gpt-dots span:nth-child(3) { animation-delay: .4s; }
@keyframes gpt-bounce {
  0%, 80%, 100% { transform: scale(.7); opacity: .4; }
  40%           { transform: scale(1);  opacity: 1;  }
}

/* ─── Web search indicator ───────────────────────────────────────────────────── */
.gpt-websearch-indicator {
  display: flex; align-items: center; gap: 5px;
  font-size: 11px; color: var(--gpt-color-web);
  padding: 4px 2px; animation: gpt-pulse-web 1.5s ease-in-out infinite;
}
@keyframes gpt-pulse-web { 0%, 100% { opacity: .5; } 50% { opacity: 1; } }

/* ─── Code blocks ────────────────────────────────────────────────────────────── */
.gpt-code-block {
  border: 1px solid var(--background-modifier-border);
  border-radius: 8px; overflow: hidden; margin: 8px 0;
}
.gpt-code-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 5px 10px;
  background: color-mix(in srgb, var(--background-modifier-border) 50%, var(--background-secondary));
  border-bottom: 1px solid var(--background-modifier-border); min-height: 28px;
}
.gpt-code-lang {
  font-size: 10px; font-weight: 700; color: var(--text-faint);
  text-transform: uppercase; letter-spacing: .08em;
  font-family: var(--font-monospace);
}
.gpt-code-copy {
  display: flex; align-items: center; gap: 4px;
  padding: 3px 9px; font-size: 11px; border-radius: 5px;
  border: 1px solid var(--background-modifier-border);
  background: var(--background-secondary); color: var(--text-muted);
  cursor: pointer; transition: all .15s;
  font-family: var(--font-interface); margin-left: auto; line-height: 1;
}
.gpt-code-copy:hover { background: var(--background-modifier-hover); color: var(--text-normal); }
.gpt-code-copy.gpt-code-copy--ok {
  color: var(--gpt-color-openai);
  border-color: var(--gpt-color-openai);
  background: color-mix(in srgb, var(--gpt-color-openai) 10%, var(--background-secondary));
}
.gpt-bubble pre  { background: var(--background-primary); border-radius: 0; padding: 10px 12px; overflow-x: auto; margin: 0; font-size: 12px; }
.gpt-bubble code { font-family: var(--font-monospace); font-size: 12px; }
.gpt-bubble h1, .gpt-bubble h2, .gpt-bubble h3 { margin: 8px 0 4px; line-height: 1.3; }
.gpt-bubble ul { padding-left: 18px; margin: 4px 0; }
.gpt-bubble li { margin: 2px 0; }
.gpt-bubble ol { padding-left: 18px; margin: 4px 0; }
.gpt-bubble ol li { margin: 2px 0; }
.gpt-bubble s   { opacity: .65; }

/* ─── RAG sources ────────────────────────────────────────────────────────────── */
.gpt-rag-sources {
  font-size: 11px; padding: 2px 6px 6px;
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 4px; max-width: 88%;
}
.gpt-rag-src-icon  { font-size: 12px; }
.gpt-rag-src-label { color: var(--text-muted); font-weight: 600; font-size: 10px; }
.gpt-rag-src-chip  {
  background: color-mix(in srgb, var(--gpt-color-openai) 12%, var(--background-secondary));
  color: var(--gpt-color-openai); padding: 1px 7px; border-radius: 10px;
  font-size: 10px; font-weight: 500;
  border: 1px solid color-mix(in srgb, var(--gpt-color-openai) 25%, transparent);
}

/* ─── Input area ─────────────────────────────────────────────────────────────── */
.gpt-input-area {
  padding: 10px 12px 12px;
  border-top: 1px solid var(--background-modifier-border);
  background: var(--background-secondary); flex-shrink: 0;
}
.gpt-tool-row { display: flex; gap: 5px; margin-bottom: 7px; flex-wrap: wrap; }
.gpt-tool-btn {
  display: flex; align-items: center; gap: 4px;
  padding: 4px 9px; font-size: 11px; border-radius: 6px;
  border: 1px solid var(--background-modifier-border);
  background: transparent; color: var(--text-muted);
  cursor: pointer; transition: all .2s; white-space: nowrap;
}
.gpt-tool-btn:hover { background: var(--background-modifier-hover); color: var(--text-normal); }

/* Active states for tool buttons */
.gpt-tool-btn.gpt-rag-btn--active {
  background: color-mix(in srgb, var(--gpt-color-openai) 15%, var(--background-secondary));
  color: var(--gpt-color-openai);
  border-color: var(--gpt-color-openai);
  font-weight: 600;
}
.gpt-tool-btn.gpt-websearch-btn--active {
  background: color-mix(in srgb, var(--gpt-color-web) 15%, var(--background-secondary));
  color: var(--gpt-color-web);
  border-color: var(--gpt-color-web);
  font-weight: 600;
}
.gpt-tool-btn.gpt-learn-btn--active {
  background: color-mix(in srgb, var(--gpt-color-learn) 15%, var(--background-secondary));
  color: #b45309;
  border-color: var(--gpt-color-learn);
  font-weight: 600;
}
.gpt-tool-btn.gpt-code-btn--active {
  background: color-mix(in srgb, var(--gpt-color-claude) 15%, var(--background-secondary));
  color: var(--gpt-color-claude);
  border-color: var(--gpt-color-claude);
  font-weight: 600;
}

/* Textarea & send buttons */
.gpt-input {
  width: 100%; padding: 9px 12px; border-radius: 10px;
  border: 1px solid var(--background-modifier-border);
  background: var(--background-primary); color: var(--text-normal);
  font-size: 13px; resize: none; outline: none;
  transition: border-color .2s; box-sizing: border-box;
  font-family: var(--font-interface);
}
.gpt-input:focus { border-color: var(--gpt-color-openai); }
.gpt-btn-row { display: flex; align-items: center; gap: 6px; margin-top: 7px; }
.gpt-mode-label {
  font-size: 10px; color: var(--text-faint); flex: 1;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; cursor: help;
}
.gpt-send-btn {
  padding: 6px 18px; border-radius: 20px; border: none;
  background: var(--gpt-color-openai); color: #fff;
  font-size: 12px; font-weight: 700; cursor: pointer;
  transition: opacity .2s, transform .1s;
}
.gpt-send-btn:hover    { opacity: .85; }
.gpt-send-btn:active   { transform: scale(.97); }
.gpt-send-btn:disabled { opacity: .45; cursor: not-allowed; }
.gpt-stop-btn {
  padding: 6px 18px; border-radius: 20px; border: none;
  background: var(--gpt-color-error); color: #fff;
  font-size: 12px; font-weight: 700; cursor: pointer;
  transition: opacity .2s; animation: gpt-pulse-stop 1.2s ease-in-out infinite;
}
.gpt-stop-btn:hover { opacity: .85; }
@keyframes gpt-pulse-stop { 0%, 100% { opacity: .85; } 50% { opacity: 1; } }
.gpt-action-btn {
  display: flex; align-items: center; background: none;
  border: 1px solid var(--background-modifier-border);
  cursor: pointer; color: var(--text-faint);
  padding: 4px 7px; border-radius: 8px; transition: all .15s;
}
.gpt-action-btn:hover { background: var(--background-modifier-hover); color: var(--text-normal); border-color: var(--text-faint); }
.gpt-link { color: var(--interactive-accent); text-decoration: underline; text-underline-offset: 2px; }
.gpt-link:hover { opacity: .8; }
.gpt-cursor {
  display: inline-block; width: 2px; height: 14px;
  background: var(--text-normal); margin-left: 1px;
  vertical-align: middle; animation: gpt-blink .7s step-end infinite;
}
@keyframes gpt-blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ─── Modal overlay ──────────────────────────────────────────────────────────── */
.gpt-modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.55);
  display: flex; align-items: center; justify-content: center; z-index: 9999;
}
.gpt-modal-box {
  background: var(--background-primary); border-radius: 12px; padding: 20px;
  width: 400px; max-width: 92vw;
  display: flex; flex-direction: column; gap: 10px;
  border: 1px solid var(--background-modifier-border);
  box-shadow: 0 8px 32px rgba(0,0,0,.3);
}
.gpt-modal-title { margin: 0; font-size: 13px; font-weight: 600; }
.gpt-modal-input {
  width: 100%; padding: 8px 12px; border-radius: 8px; box-sizing: border-box;
  border: 1px solid var(--background-modifier-border);
  background: var(--background-secondary); color: var(--text-normal);
  font-size: 13px; outline: none;
}
.gpt-modal-input:focus { border-color: var(--gpt-color-openai); }
.gpt-modal-input.gpt-modal-input-error { border-color: var(--color-red, var(--gpt-color-error)); }
.gpt-modal-list {
  max-height: 260px; overflow-y: auto;
  display: flex; flex-direction: column; gap: 3px;
  border: 1px solid var(--background-modifier-border);
  border-radius: 8px; padding: 6px;
}
.gpt-modal-row {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 6px; border-radius: 6px; cursor: pointer;
  font-size: 12px; color: var(--text-normal);
}
.gpt-modal-row:hover { background: var(--background-modifier-hover); }
.gpt-modal-row-label { font-size: 12px; }
.gpt-modal-more { font-size: 11px; color: var(--text-faint); padding: 4px 6px; }
.gpt-modal-btns    { display: flex; gap: 8px; justify-content: flex-end; margin-top: 2px; }
.gpt-modal-cancel  { padding: 7px 16px; border-radius: 8px; cursor: pointer; background: transparent; border: 1px solid var(--background-modifier-border); color: var(--text-normal); font-size: 12px; }
.gpt-modal-ok      { padding: 7px 16px; border-radius: 8px; cursor: pointer; background: var(--gpt-color-openai); color: #fff; border: none; font-weight: 700; font-size: 12px; }
.gpt-modal-cancel:hover { background: var(--background-modifier-hover); }
.gpt-modal-ok:hover     { opacity: .87; }
.gpt-modal-prompt-label { font-size: 11px; font-weight: 600; color: var(--text-muted); margin-top: 8px; display: flex; align-items: center; gap: 4px; }
.gpt-modal-prompt-hint  { font-size: 10px; color: var(--text-faint); margin-top: 2px; }
.gpt-modal-prompt-area  { margin-top: 4px; min-height: 80px; resize: vertical; font-size: 12px; line-height: 1.5; }

/* ─── Quiz ───────────────────────────────────────────────────────────────────── */
.gpt-quiz-title {
  font-size: 14px; font-weight: 700; margin-bottom: 12px;
  color: var(--text-normal); padding: 2px 0;
}
.gpt-quiz-card {
  background: var(--background-secondary);
  border: 1px solid var(--background-modifier-border);
  border-radius: 12px; padding: 14px 16px; margin-bottom: 12px;
}
.gpt-quiz-qnum  { font-size: 10px; font-weight: 600; color: var(--text-faint); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 6px; }
.gpt-quiz-qtext { font-size: 13px; font-weight: 600; color: var(--text-normal); margin-bottom: 12px; line-height: 1.5; }
.gpt-quiz-opts  { display: flex; flex-direction: column; gap: 7px; }
.gpt-quiz-opt {
  padding: 9px 14px; border-radius: 8px;
  border: 1.5px solid var(--background-modifier-border);
  background: var(--background-primary); color: var(--text-normal);
  font-size: 12px; text-align: left; cursor: pointer;
  transition: all .15s; font-family: var(--font-interface);
}
.gpt-quiz-opt:hover:not(:disabled) {
  border-color: var(--interactive-accent);
  background: color-mix(in srgb, var(--interactive-accent) 8%, var(--background-primary));
}
.gpt-quiz-opt.gpt-quiz-opt--correct {
  border-color: var(--gpt-color-openai);
  background: color-mix(in srgb, var(--gpt-color-openai) 12%, var(--background-primary));
  color: var(--gpt-color-ok-text); font-weight: 600;
}
.gpt-quiz-opt.gpt-quiz-opt--wrong {
  border-color: var(--gpt-color-error);
  background: color-mix(in srgb, var(--gpt-color-error) 10%, var(--background-primary));
  color: var(--gpt-color-err-text);
}
.gpt-quiz-opt:disabled { cursor: default; }
.gpt-quiz-fb { margin-top: 10px; padding: 9px 12px; border-radius: 8px; font-size: 12px; line-height: 1.5; }
.gpt-quiz-fb--ok  {
  background: color-mix(in srgb, var(--gpt-color-openai) 12%, var(--background-primary));
  color: var(--gpt-color-ok-text);
  border: 1px solid color-mix(in srgb, var(--gpt-color-openai) 25%, transparent);
}
.gpt-quiz-fb--err {
  background: color-mix(in srgb, var(--gpt-color-error) 10%, var(--background-primary));
  color: var(--gpt-color-err-text);
  border: 1px solid color-mix(in srgb, var(--gpt-color-error) 20%, transparent);
}
.gpt-quiz-input {
  width: 100%; padding: 8px 12px; border-radius: 8px;
  border: 1.5px solid var(--background-modifier-border);
  background: var(--background-primary); color: var(--text-normal);
  font-size: 12px; resize: none; outline: none; box-sizing: border-box;
  font-family: var(--font-interface); transition: border-color .15s; margin-bottom: 8px;
}
.gpt-quiz-input:focus { border-color: var(--interactive-accent); }
.gpt-quiz-check {
  padding: 6px 16px; border-radius: 8px; border: none;
  background: var(--interactive-accent); color: #fff;
  font-size: 12px; font-weight: 600; cursor: pointer; transition: opacity .15s;
}
.gpt-quiz-check:hover    { opacity: .85; }
.gpt-quiz-check:disabled { opacity: .45; cursor: not-allowed; }

/* ─── History view ───────────────────────────────────────────────────────────── */
.gpt-history-list {
  flex: 1; overflow-y: auto; padding: 8px;
  display: flex; flex-direction: column; gap: 4px; scrollbar-width: thin;
}
.gpt-history-item {
  padding: 9px 11px; border-radius: 8px; cursor: pointer;
  border: 1px solid transparent; background: var(--background-secondary);
  transition: all .15s;
}
.gpt-history-item--active {
  border-color: var(--interactive-accent);
  background: color-mix(in srgb, var(--interactive-accent) 10%, var(--background-secondary));
}
.gpt-history-item:hover:not(.gpt-history-item--active) { background: var(--background-modifier-hover); }
.gpt-history-item:hover .gpt-history-item-del,
.gpt-projects-card:hover .gpt-projects-icon-btn { opacity: 1; }
.gpt-history-item-top     { display: flex; align-items: center; justify-content: space-between; gap: 6px; }
.gpt-history-item-title   { font-size: 12px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; color: var(--text-normal); }
.gpt-history-item-del,
.gpt-projects-icon-btn    { background: none; border: none; cursor: pointer; color: var(--text-faint); padding: 2px; border-radius: 3px; opacity: 0; transition: opacity .15s; flex-shrink: 0; }
.gpt-history-item-date    { font-size: 10px; color: var(--text-faint); margin-top: 2px; }
.gpt-history-item-preview { font-size: 11px; color: var(--text-muted); margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gpt-history-empty        { color: var(--text-muted); font-size: 12px; text-align: center; margin-top: 24px; line-height: 1.6; }
.gpt-history-empty-hint   { color: var(--text-faint); font-size: 11px; text-align: center; margin-top: 6px; white-space: pre-line; }
.gpt-projects-shortcut {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 14px; border-bottom: 1px solid var(--background-modifier-border);
  cursor: pointer; transition: background .15s; flex-shrink: 0;
}
.gpt-projects-shortcut:hover         { background: var(--background-modifier-hover); }
.gpt-projects-shortcut-label         { font-size: 12px; font-weight: 600; flex: 1; color: var(--text-normal); }
.gpt-projects-shortcut-badge {
  font-size: 10px; padding: 1px 7px; border-radius: 10px;
  background: color-mix(in srgb, var(--gpt-color-claude) 15%, var(--background-secondary));
  color: var(--gpt-color-claude); font-weight: 700;
}
.gpt-projects-shortcut-arrow { font-size: 16px; color: var(--text-faint); font-weight: 300; }

/* ─── Projects view ──────────────────────────────────────────────────────────── */
.gpt-projects-list { flex: 1; overflow-y: auto; padding: 8px; display: flex; flex-direction: column; gap: 6px; scrollbar-width: thin; }
.gpt-projects-active-bar { display: flex; align-items: center; gap: 8px; padding: 8px 14px; border-bottom: 1px solid color-mix(in srgb, var(--gpt-project-color, var(--interactive-accent)) 25%, transparent); background: color-mix(in srgb, var(--gpt-project-color, var(--interactive-accent)) 12%, var(--background-secondary)); flex-shrink: 0; font-size: 11px; }
.gpt-projects-active-dot  { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; background: var(--gpt-project-color, var(--interactive-accent)); }
.gpt-projects-active-name { font-size: 11px; font-weight: 600; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gpt-projects-empty       { color: var(--text-muted); font-size: 12px; text-align: center; margin-top: 24px; padding: 0 12px; line-height: 1.6; }
.gpt-projects-empty-hint  { font-size: 11px; opacity: .7; margin-top: 4px; }
.gpt-projects-card        { padding: 11px 13px; border-radius: 10px; cursor: pointer; border: 2px solid transparent; background: var(--background-secondary); transition: all .15s; }
.gpt-projects-card:hover  { background: var(--background-modifier-hover); }
.gpt-projects-card--active { border-color: var(--gpt-project-color, var(--interactive-accent)); background: color-mix(in srgb, var(--gpt-project-color, var(--interactive-accent)) 8%, var(--background-secondary)); }
.gpt-projects-card-top    { display: flex; align-items: center; gap: 8px; }
.gpt-projects-card-dot    { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; background: var(--gpt-project-color, var(--interactive-accent)); }
.gpt-projects-card-name   { font-size: 12px; font-weight: 700; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-normal); }
.gpt-projects-card-badge  { font-size: 10px; padding: 1px 7px; border-radius: 10px; font-weight: 600; flex-shrink: 0; background: color-mix(in srgb, var(--gpt-project-color, var(--interactive-accent)) 15%, var(--background-primary)); color: var(--gpt-project-color, var(--interactive-accent)); }
.gpt-projects-card-desc   { font-size: 11px; color: var(--text-muted); margin-top: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gpt-projects-card-prompt-tag { display: inline-flex; align-items: center; gap: 4px; margin-top: 4px; padding: 2px 8px; border-radius: 10px; font-size: 10px; font-weight: 600; border: 1px solid color-mix(in srgb, var(--gpt-project-color, var(--interactive-accent)) 20%, transparent); background: color-mix(in srgb, var(--gpt-project-color, var(--interactive-accent)) 10%, var(--background-primary)); color: var(--gpt-project-color, var(--interactive-accent)); }
.gpt-projects-card-chats      { margin-top: 8px; display: flex; flex-direction: column; gap: 3px; }
.gpt-projects-card-chat       { display: flex; align-items: center; gap: 6px; padding: 4px 8px; border-radius: 6px; font-size: 11px; color: var(--text-muted); cursor: pointer; transition: background .1s; }
.gpt-projects-card-chat:hover { background: var(--background-modifier-hover); }
.gpt-projects-card-chat-icon  { flex-shrink: 0; opacity: .6; }
.gpt-projects-card-chat-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gpt-projects-card-chat-date  { font-size: 9px; color: var(--text-faint); flex-shrink: 0; }
.gpt-projects-card-chat-del {
  display: none; flex-shrink: 0; padding: 2px 4px;
  border: none; background: transparent; color: var(--text-faint);
  cursor: pointer; border-radius: 4px; line-height: 1;
  transition: color .12s, background .12s;
}
.gpt-projects-card-chat-del:hover { color: var(--gpt-color-error); background: color-mix(in srgb, var(--gpt-color-error) 12%, transparent); }
.gpt-projects-card-chat:hover .gpt-projects-card-chat-del { display: flex; align-items: center; }
.gpt-projects-card-more { font-size: 10px; color: var(--text-faint); padding: 2px 8px; }

/* ─── Fallback modal ─────────────────────────────────────────────────────────── */
.gpt-fallback-modal h2    { margin: 0 0 12px; font-size: 18px; }
.gpt-fallback-desc        { font-size: 13px; line-height: 1.55; color: var(--text-normal); }
.gpt-fallback-desc p      { margin: 8px 0; }
.gpt-fallback-hint {
  padding: 10px 12px; margin: 10px 0;
  background: color-mix(in srgb, var(--gpt-color-learn) 10%, var(--background-secondary));
  border: 1px solid color-mix(in srgb, var(--gpt-color-learn) 30%, transparent);
  border-radius: 6px; font-size: 12px; line-height: 1.55;
}
.gpt-fallback-err { padding: 8px 10px; margin: 10px 0; background: var(--background-secondary); border-radius: 6px; font-size: 11px; color: var(--text-muted); font-family: var(--font-monospace); word-break: break-word; }
.gpt-fallback-err code    { background: transparent; padding: 0; color: var(--color-red, var(--gpt-color-error)); }
.gpt-fallback-check       { display: flex; align-items: center; gap: 6px; margin: 14px 0 8px; font-size: 12px; color: var(--text-muted); }
.gpt-fallback-check input[type=checkbox] { margin: 0; }
.gpt-fallback-check label { cursor: pointer; }
.gpt-fallback-buttons     { display: flex; gap: 8px; justify-content: flex-end; margin-top: 14px; }
.gpt-fallback-buttons button {
  padding: 6px 14px; font-size: 13px; border-radius: 6px; cursor: pointer;
  border: 1px solid var(--background-modifier-border);
  background: var(--background-secondary); color: var(--text-normal); transition: background .15s;
}
.gpt-fallback-buttons button:hover     { background: var(--background-modifier-hover); }
.gpt-fallback-buttons button.mod-cta   { background: var(--interactive-accent); color: var(--text-on-accent); border-color: var(--interactive-accent); }
.gpt-fallback-buttons button.mod-cta:hover { background: var(--interactive-accent-hover, var(--interactive-accent)); }

/* ─── Settings tab ───────────────────────────────────────────────────────────── */
.gpt-settings-warning {
  padding: 8px 12px; margin-bottom: 14px; border-radius: 6px;
  background: color-mix(in srgb, var(--gpt-color-learn) 10%, var(--background-secondary));
  border: 1px solid color-mix(in srgb, var(--gpt-color-learn) 30%, transparent);
  font-size: 12px; color: var(--text-muted);
}
.gpt-settings-note {
  font-size: 11px; color: var(--text-muted);
  margin: -8px 0 12px; padding: 0 12px;
}
.gpt-settings-rag-status {
  padding: 8px 12px; margin: 8px 0; border-radius: 6px;
  background: var(--background-secondary); font-size: 12px; color: var(--text-muted);
}
.gpt-settings-storage-info {
  padding: 10px 14px; margin-bottom: 14px; border-radius: 6px;
  font-size: 12px; line-height: 1.6;
  border: 1px solid var(--background-modifier-border);
}
.gpt-settings-input-compact {
  width: 90px;
  max-width: 100%;
}
.gpt-settings-input-full {
  width: 100%;
}
.gpt-settings-storage-path {
  font-size: 11px;
  word-break: break-all;
}