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

:root {
  --bg-primary:   #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary:  #1c2333;
  --bg-input:     #1c2333;
  --bg-user-msg:  #1a3a5c;
  --bg-bot-msg:   #161b22;
  --bg-hover:     #21262d;
  --text-primary: #e6edf3;
  --text-secondary:#8b949e;
  --accent:       #58a6ff;
  --accent-hover: #79c0ff;
  --border:       #30363d;
  --danger:       #f85149;
  --radius:       8px;
  --sidebar-w:    260px;
  --topbar-h:     52px;
  --input-h:      64px;
  --font:         -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  --font-mono:    'Fira Code', 'Cascadia Code', 'JetBrains Mono', monospace;
}

/* ── Light Theme ────────────────────────────────────────────── */
[data-theme="light"] {
  --bg-primary:    #ffffff;
  --bg-secondary:  #f6f8fa;
  --bg-tertiary:   #eef1f5;
  --bg-input:      #eef1f5;
  --bg-user-msg:   #dbeafe;
  --bg-bot-msg:    #f6f8fa;
  --bg-hover:      #e2e6eb;
  --text-primary:  #1f2328;
  --text-secondary:#656d76;
  --accent:        #0969da;
  --accent-hover:  #0550ae;
  --border:        #d1d9e0;
  --danger:        #cf222e;
}

html, body { height: 100%; height: 100dvh; font-family: var(--font); background: var(--bg-primary); color: var(--text-primary); overflow: hidden; }
body { display: flex; -webkit-tap-highlight-color: transparent; }

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ── Sidebar ────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w); min-width: var(--sidebar-w);
  background: var(--bg-secondary); border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  transition: margin-left .25s, transform .25s ease;
}
.sidebar.collapsed { margin-left: calc(var(--sidebar-w) * -1); }

/* Sidebar backdrop — only used on mobile, stays hidden on desktop */
.sidebar-backdrop { display: none; }

.sidebar-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px; border-bottom: 1px solid var(--border);
}
.sidebar-header h2 { font-size: 16px; font-weight: 600; }

.sidebar-conversations {
  flex: 1; overflow-y: auto; padding: 8px;
}

.conv-item {
  padding: 10px 12px; border-radius: var(--radius); cursor: pointer;
  font-size: 13px; color: var(--text-secondary); white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis; margin-bottom: 2px;
  display: flex; align-items: center; justify-content: space-between;
}
.conv-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.conv-item.active { background: var(--bg-tertiary); color: var(--text-primary); }
.conv-item .conv-delete { opacity: 0; cursor: pointer; background: none; border: none; color: var(--danger); font-size: 14px; }
.conv-item:hover .conv-delete { opacity: 1; }

.sidebar-footer {
  display: flex; gap: 8px; padding: 12px 16px;
  border-top: 1px solid var(--border);
}

/* ── Bot Links Row ──────────────────────────────────────────── */
.sidebar-bot-links {
  display: flex; gap: 6px; padding: 8px 16px;
  border-top: 1px solid var(--border);
}
.bot-link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 10px; border-radius: var(--radius);
  background: var(--bg-tertiary); border: 1px solid var(--border);
  color: var(--text-secondary); text-decoration: none;
  font-size: 12px; font-weight: 500;
  transition: background .15s, color .15s, border-color .15s;
  flex: 1; justify-content: center;
}
.bot-link:hover { background: var(--bg-hover); color: var(--text-primary); border-color: var(--accent); }
.bot-link svg { flex-shrink: 0; }
.bot-link-support {
  background: rgba(88,101,242,.15); border-color: rgba(88,101,242,.3);
  color: #7983f5;
}
.bot-link-support:hover { background: rgba(88,101,242,.25); color: #fff; border-color: #5865F2; }

/* ── Theme Toggle ───────────────────────────────────────────── */
.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  background: none; border: none; color: var(--text-secondary);
  font-size: 18px; cursor: pointer; padding: 4px 6px; border-radius: 4px;
  transition: color .15s, background .15s;
}
.theme-toggle:hover { color: var(--text-primary); background: var(--bg-hover); }
.theme-toggle .icon-sun,
.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* ── Main ───────────────────────────────────────────────────── */
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; width: 0; height: 100%; overflow: hidden; }

.topbar {
  height: var(--topbar-h); display: flex; align-items: center;
  gap: 12px; padding: 0 16px; border-bottom: 1px solid var(--border);
  background: var(--bg-secondary); flex-shrink: 0;
}
.topbar-title { flex: 1; font-size: 14px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.model-select {
  background: var(--bg-tertiary); color: var(--text-primary);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 6px 10px; font-size: 13px; cursor: pointer;
}

/* ── Messages ───────────────────────────────────────────────── */
.messages {
  flex: 1; overflow-y: auto; padding: 24px 0;
}

.empty-state {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; height: 100%; opacity: .5;
}
.empty-state h1 { font-size: 36px; margin-bottom: 8px; }

.message {
  padding: 16px 24px; max-width: 820px; margin: 0 auto; width: 100%;
  animation: fadeIn .2s ease;
}
.message.user { background: var(--bg-user-msg); border-radius: var(--radius); margin-bottom: 4px; }
.message.assistant { background: transparent; margin-bottom: 4px; }

.message-role {
  font-size: 12px; font-weight: 600; text-transform: uppercase;
  color: var(--accent); margin-bottom: 6px;
}
.message-content { line-height: 1.6; font-size: 15px; word-wrap: break-word; }
.message-content p { margin-bottom: 10px; }
.message-content p:last-child { margin-bottom: 0; }
.message-content ul, .message-content ol { margin: 8px 0 8px 20px; }
.message-content a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(88,166,255,.4);
  text-underline-offset: 2px;
  transition: color .15s, text-decoration-color .15s;
  word-break: break-all;
}
.message-content a:hover {
  color: var(--accent-hover);
  text-decoration-color: var(--accent-hover);
}
.message-content a:visited { color: #bc8cff; text-decoration-color: rgba(188,140,255,.4); }
.message-content code { background: var(--bg-tertiary); padding: 2px 6px; border-radius: 4px; font-family: var(--font-mono); font-size: 13px; }
.message-content pre { margin: 12px 0; border-radius: var(--radius); overflow: hidden; position: relative; }
.message-content pre code { display: block; padding: 16px; background: var(--bg-tertiary); overflow-x: auto; font-size: 13px; }

.code-header {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg-hover); padding: 6px 12px; font-size: 12px;
  color: var(--text-secondary); border-bottom: 1px solid var(--border);
}
.code-header .copy-btn { position: static; }
.code-actions { display: flex; gap: 6px; align-items: center; }

.copy-btn {
  position: absolute; top: 8px; right: 8px;
  background: var(--bg-hover); color: var(--text-secondary); border: 1px solid var(--border);
  border-radius: 4px; padding: 4px 8px; font-size: 11px; cursor: pointer;
}
.copy-btn:hover { color: var(--text-primary); }

/* ── Message Actions (Gemini-style copy / regenerate) ──────── */
.message-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 10px;
  padding-top: 4px;
}
.msg-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  cursor: pointer;
  transition: background .15s, color .15s;
}
.msg-action-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.msg-action-btn.copied {
  color: #3fb950;
}

.preview-btn {
  background: var(--accent); color: #fff; border: none;
  border-radius: 4px; padding: 4px 10px; font-size: 11px;
  cursor: pointer; font-weight: 500; transition: background .2s;
}
.preview-btn:hover { background: var(--accent-hover); }

/* ── HTML Preview Overlay ───────────────────────────────────── */
.html-preview-overlay {
  position: fixed; inset: 0; z-index: 2000;
  display: flex; flex-direction: column;
  background: var(--bg-primary);
  animation: fadeIn .2s ease;
}
.html-preview-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  font-size: 14px; font-weight: 600;
  color: var(--text-primary);
}
.html-preview-actions { display: flex; gap: 8px; }
.html-preview-btn {
  background: var(--bg-hover); color: var(--text-primary);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 6px 14px; font-size: 13px; cursor: pointer;
  transition: background .2s;
}
.html-preview-btn:hover { background: var(--bg-tertiary); }
.html-preview-close { background: var(--danger); color: #fff; border-color: var(--danger); }
.html-preview-close:hover { background: #e5453d; }
.html-preview-frame {
  flex: 1; border: none; width: 100%;
  background: #fff;
}

/* Typing indicator */
.typing-indicator span { display: inline-block; width: 8px; height: 8px; margin: 0 2px; background: var(--accent); border-radius: 50%; animation: bounce .6s infinite alternate; }
.typing-indicator span:nth-child(2) { animation-delay: .2s; }
.typing-indicator span:nth-child(3) { animation-delay: .4s; }

@keyframes bounce { to { opacity: .3; transform: translateY(-4px); } }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } }

/* ── Input Area ─────────────────────────────────────────────── */
.input-area {
  padding: 12px 24px 20px; border-top: 1px solid var(--border);
  background: var(--bg-secondary); flex-shrink: 0;
}

.input-wrapper {
  max-width: 820px; margin: 0 auto; display: flex;
  align-items: flex-end; gap: 8px;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 8px 12px;
}

.input-wrapper textarea {
  flex: 1; resize: none; border: none; outline: none;
  background: transparent; color: var(--text-primary);
  font-family: var(--font); font-size: 15px; line-height: 1.5;
  max-height: 200px; padding: 4px 0;
}

.btn-send, .btn-stop {
  width: 36px; height: 36px; border-radius: 50%; border: none;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 16px; flex-shrink: 0;
}
.btn-send { background: var(--accent); color: #fff; }
.btn-send:hover { background: var(--accent-hover); }
.btn-send:disabled { opacity: .4; cursor: not-allowed; }
.btn-stop { background: var(--danger); color: #fff; }

/* ── Buttons ────────────────────────────────────────────────── */
.btn-icon {
  background: none; border: none; color: var(--text-secondary);
  font-size: 18px; cursor: pointer; padding: 4px 6px; border-radius: 4px;
}
.btn-icon:hover { color: var(--text-primary); background: var(--bg-hover); }

/* ── Settings Dialog ────────────────────────────────────────── */
.settings-dialog {
  background: var(--bg-secondary); color: var(--text-primary);
  border: 1px solid var(--border); border-radius: 12px;
  padding: 24px; width: 420px; max-width: 90vw;
}
.settings-dialog::backdrop { background: rgba(0,0,0,.6); }
.settings-dialog h3 { margin-bottom: 16px; }
.settings-dialog label { display: block; margin-bottom: 14px; font-size: 13px; color: var(--text-secondary); }
.settings-dialog input, .settings-dialog textarea {
  display: block; width: 100%; margin-top: 6px;
  background: var(--bg-input); color: var(--text-primary);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 8px 10px; font-family: var(--font); font-size: 14px;
}
.dialog-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 8px; }
.btn-primary, .btn-secondary {
  padding: 8px 18px; border-radius: var(--radius); border: none;
  font-size: 14px; cursor: pointer;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-hover); color: var(--text-primary); }

/* ── Utilities ──────────────────────────────────────────────── */
.hidden { display: none !important; }

/* ── Login Screen ───────────────────────────────────────────── */
.login-screen {
  position: fixed; inset: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-primary);
}

.login-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px 40px;
  width: 420px; max-width: 90vw;
  text-align: center;
  animation: fadeIn .3s ease;
}

.login-logo {
  font-size: 64px;
  margin-bottom: 12px;
  line-height: 1;
}

.login-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.login-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

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

.login-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.login-input {
  width: 100%;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 44px 12px 14px;
  font-family: var(--font-mono);
  font-size: 14px;
  outline: none;
  transition: border-color .2s;
}

.login-input:focus {
  border-color: var(--accent);
}

.login-input::placeholder {
  color: var(--text-secondary);
  opacity: .6;
}

.login-toggle-visibility {
  position: absolute;
  right: 10px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 16px;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}

.login-toggle-visibility:hover {
  color: var(--text-primary);
}

.login-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s;
}

.login-btn:hover {
  background: var(--accent-hover);
}

.login-btn:disabled {
  opacity: .5;
  cursor: not-allowed;
}

.login-btn.loading {
  position: relative;
  color: transparent;
}

.login-btn.loading::after {
  content: '';
  position: absolute;
  left: 50%; top: 50%;
  width: 18px; height: 18px;
  margin: -9px 0 0 -9px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.login-error {
  color: var(--danger);
  font-size: 13px;
  padding: 8px 12px;
  background: rgba(248,81,73,.1);
  border: 1px solid rgba(248,81,73,.3);
  border-radius: var(--radius);
  animation: shake .4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-6px); }
  40%, 80% { transform: translateX(6px); }
}

/* ── API Key Stats Panel ────────────────────────────────────── */
.key-stats-panel {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: var(--bg-tertiary);
  font-size: 12px;
}

.stats-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.stats-label {
  font-weight: 600;
  font-size: 13px;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 160px;
}

.stats-admin-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(88, 166, 255, 0.15);
  color: var(--accent);
  letter-spacing: 0.5px;
}

.stats-usage-bar {
  height: 6px;
  background: var(--bg-primary);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 6px;
}

.stats-usage-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.4s ease, background 0.3s ease;
  min-width: 0;
}

.stats-usage-fill.warning {
  background: #d29922;
}

.stats-usage-fill.danger {
  background: var(--danger);
}

.stats-usage-text {
  color: var(--text-secondary);
  font-size: 11px;
  margin-bottom: 6px;
}

.stats-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.stats-remaining {
  color: var(--text-secondary);
  font-size: 11px;
}

.stats-expiry {
  color: var(--text-secondary);
  font-size: 11px;
  text-align: right;
}

.stats-expired {
  color: var(--danger);
  font-weight: 600;
}

.stats-expiring-soon {
  color: #d29922;
  font-weight: 600;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  :root {
    --sidebar-w: 280px;
    --topbar-h: 48px;
  }

  body { position: relative; overflow: visible; overscroll-behavior-y: auto; }
  html { overflow: visible; overscroll-behavior-y: auto; }

  /* Prevent double-tap zoom on interactive elements */
  button, select, input, textarea, .conv-item { touch-action: manipulation; }

  /* ── Mobile Sidebar: full-height overlay ─────────────── */
  .sidebar {
    position: fixed; z-index: 200; height: 100dvh;
    width: var(--sidebar-w); min-width: 0;
    top: 0; left: 0;
    transform: translateX(0);
    transition: transform .25s ease;
    box-shadow: 4px 0 24px rgba(0,0,0,.5);
  }
  .sidebar.collapsed { transform: translateX(-100%); box-shadow: none; margin-left: 0; }

  /* Backdrop when sidebar is open */
  .sidebar-backdrop {
    display: block;
    position: fixed; inset: 0; z-index: 199;
    background: rgba(0,0,0,.45);
    opacity: 1; transition: opacity .25s ease;
    -webkit-tap-highlight-color: transparent;
  }
  .sidebar-backdrop.hidden { opacity: 0; pointer-events: none; }

  /* Main takes full width on mobile */
  .main { width: 100%; min-width: 100%; }

  /* ── Topbar ───────────────────────────────────────────── */
  .topbar { padding: 0 10px; gap: 8px; }
  .topbar-title { font-size: 13px; }
  .model-select { font-size: 12px; padding: 5px 8px; max-width: 120px; }

  /* ── Messages ─────────────────────────────────────────── */
  .messages { padding: 12px 0; }
  .message {
    padding: 10px 14px; max-width: 100%;
    font-size: 14px;
  }
  .message-content { font-size: 14px; line-height: 1.55; }
  .message-content pre code { font-size: 12px; padding: 12px; }
  .message-content code { font-size: 12px; }
  .message-role { font-size: 11px; }

  .empty-state h1 { font-size: 28px; }
  .empty-state p { font-size: 14px; }

  /* Code blocks: horizontal scroll on small screens */
  .message-content pre { margin: 8px -14px; border-radius: 0; }
  .message-content pre code { border-radius: 0; }

  .code-header { font-size: 11px; padding: 5px 10px; }
  .copy-btn, .preview-btn { font-size: 10px; padding: 3px 7px; }

  /* ── Input Area ───────────────────────────────────────── */
  .input-area {
    padding: 8px 10px 10px;
    padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px));
    flex-shrink: 0;
  }
  .input-wrapper {
    max-width: 100%; padding: 6px 10px; gap: 6px;
  }
  .input-wrapper textarea { font-size: 14px; max-height: 120px; }

  .btn-send, .btn-stop { width: 34px; height: 34px; font-size: 14px; }

  /* ── Settings Dialog ──────────────────────────────────── */
  .settings-dialog {
    width: calc(100vw - 32px); max-width: calc(100vw - 32px);
    padding: 20px 16px; border-radius: 10px;
    margin: auto;
  }

  /* ── Login Card ───────────────────────────────────────── */
  .login-card {
    padding: 32px 24px; width: calc(100vw - 32px);
    border-radius: 12px;
  }
  .login-logo { font-size: 48px; }
  .login-title { font-size: 20px; }
  .login-subtitle { font-size: 13px; margin-bottom: 20px; }
  .login-input { font-size: 13px; padding: 10px 40px 10px 12px; }
  .login-btn { font-size: 14px; padding: 10px; }

  /* ── HTML Preview ─────────────────────────────────────── */
  .html-preview-toolbar { padding: 8px 12px; font-size: 13px; }
  .html-preview-btn { padding: 6px 10px; font-size: 12px; }

  /* ── Sidebar footer buttons — larger touch targets ──── */
  .sidebar-footer { padding: 10px 14px; }
  .btn-icon { font-size: 20px; padding: 8px; min-width: 40px; min-height: 40px;
    display: flex; align-items: center; justify-content: center; }

  /* ── Conversation items — taller for touch ────────────── */
  .conv-item { padding: 12px 14px; font-size: 14px; }
  .conv-item .conv-delete { opacity: 1; font-size: 16px; padding: 4px 8px; }
}

/* ── Extra small screens (≤ 400px) ──────────────────────────── */
@media (max-width: 400px) {
  :root { --sidebar-w: 260px; }
  .login-card { padding: 24px 16px; }
  .login-title { font-size: 18px; }
  .message { padding: 8px 10px; }
  .input-area { padding: 6px 8px 10px; }
  .topbar-title { max-width: 120px; }
}

/* ── Tool Call / Tool Result blocks ────────────────────────── */
.tool-call-block,
.tool-result-block {
  margin: 10px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-tertiary);
}

.tool-call-block summary,
.tool-result-block summary {
  padding: 8px 12px;
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  list-style: none;
}

.tool-call-block summary::-webkit-details-marker,
.tool-result-block summary::-webkit-details-marker {
  display: none;
}

.tool-call-block summary::before {
  content: '▶';
  font-size: 10px;
  transition: transform 0.2s;
}
.tool-call-block[open] summary::before {
  transform: rotate(90deg);
}

.tool-result-block summary::before {
  content: '▶';
  font-size: 10px;
  transition: transform 0.2s;
}
.tool-result-block[open] summary::before {
  transform: rotate(90deg);
}

.tool-badge {
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  background: #388bfd33;
  color: var(--accent);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.tool-badge.result {
  background: #2ea04333;
  color: #3fb950;
}

.tool-call-args {
  margin: 0;
  padding: 10px 12px;
  background: var(--bg-primary);
  border-radius: 0;
  font-size: 12px;
  overflow-x: auto;
}

.tool-call-args code {
  background: none;
  padding: 0;
  font-size: 12px;
  color: var(--text-primary);
}

.tool-result-content {
  padding: 10px 12px;
  font-size: 13px;
  max-height: 400px;
  overflow-y: auto;
}

.tool-result-content pre {
  margin: 6px 0;
  font-size: 11px;
}

/* ── Tools group (button + toggle) ──────────────────────────── */
.tools-group {
  display: flex; align-items: center;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--bg-tertiary);
  flex-shrink: 0;
  overflow: hidden;
  transition: border-color .15s;
}

.tools-group:hover { border-color: var(--accent); }

/* "/" menu button (left half) */
.tools-group-btn {
  display: flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  background: none; border: none;
  color: var(--text-secondary);
  font-size: 15px; font-weight: 700;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: color .15s, background .15s;
}

.tools-group-btn:hover {
  color: var(--accent);
  background: rgba(88,166,255,.1);
}

.tools-group-icon { line-height: 1; }

/* divider between button and toggle */
.tools-group-toggle {
  display: flex; align-items: center;
  padding: 0 8px 0 0;
  cursor: pointer;
  position: relative;
  user-select: none;
}

.tools-group-toggle::before {
  content: '';
  width: 1px; height: 16px;
  background: var(--border);
  margin-right: 8px;
  flex-shrink: 0;
}

.tools-group-toggle input { display: none; }

/* mini toggle switch */
.tools-group-switch {
  width: 26px; height: 14px;
  background: var(--border);
  border-radius: 7px;
  position: relative;
  transition: background .2s;
  flex-shrink: 0;
}

.tools-group-switch::after {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 10px; height: 10px;
  background: var(--text-secondary);
  border-radius: 50%;
  transition: transform .2s, background .2s;
}

.tools-group-toggle input:checked + .tools-group-switch {
  background: var(--accent);
}

.tools-group-toggle input:checked + .tools-group-switch::after {
  transform: translateX(12px);
  background: #fff;
}

/* ── SweetAlert2 overrides (prevent body height clobber) ───── */
body.swal2-shown { height: 100% !important; height: 100dvh !important; }

/* ── Tool Picker (inside Swal popup) ───────────────────────── */
.tool-picker {
  display: flex; flex-direction: column; gap: 8px;
  max-height: 520px; overflow-y: auto; padding: 4px 0;
}

.tool-pick-btn {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg-tertiary);
  cursor: pointer; text-align: left;
  font-family: inherit; font-size: inherit; color: inherit;
  transition: border-color .15s, background .15s;
}
.tool-pick-btn:hover {
  border-color: var(--accent);
  background: var(--bg-hover);
}

.tool-pick-icon {
  font-size: 1.5rem; width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px; flex-shrink: 0;
}

.tool-pick-info {
  flex: 1; min-width: 0;
  display: flex; flex-direction: column; gap: 2px;
}

.tool-pick-name {
  color: var(--text-primary); font-weight: 600; font-size: .9rem;
}

.tool-pick-desc {
  color: var(--text-secondary); font-size: .78rem;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.tool-pick-tags {
  color: var(--text-secondary); font-size: .7rem;
  background: var(--bg-secondary); padding: 3px 8px;
  border-radius: 4px; flex-shrink: 0; white-space: nowrap;
}

/* ── Tool Form (inside Swal popup) ─────────────────────────── */
.tool-form { text-align: left; }

.tool-form-desc {
  color: var(--text-secondary); font-size: .82rem;
  margin: 0 0 16px; line-height: 1.4;
}

.tool-form-field { margin-bottom: 14px; }

.tool-form-label {
  display: block; color: var(--text-primary);
  font-weight: 600; font-size: .85rem; margin-bottom: 4px;
}

.tool-form-req { color: var(--danger); margin-left: 2px; }

.tool-form-hint {
  display: block; color: var(--text-secondary);
  font-size: .73rem; margin-bottom: 6px;
}

.tool-form-input {
  width: 100%; padding: 8px 10px;
  border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg-primary); color: var(--text-primary);
  font-size: .85rem; font-family: inherit;
  outline: none; box-sizing: border-box;
  transition: border-color .2s;
}
.tool-form-input:focus { border-color: var(--accent); }
.tool-form-input::placeholder { color: var(--text-secondary); opacity: .5; }
select.tool-form-input { cursor: pointer; }

.tool-form-error {
  border-color: var(--danger) !important;
  animation: shake .4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-4px); }
  40%, 80% { transform: translateX(4px); }
}

/* ── SweetAlert2 mobile overrides ──────────────────────────── */
@media (max-width: 600px) {
  .swal2-popup.swal-dark-popup {
    width: 100vw !important;
    max-width: 100vw !important;
    min-height: 100dvh !important;
    margin: 0 !important;
    border-radius: 0 !important;
    padding: 16px !important;
    box-sizing: border-box;
  }
  .swal2-container { padding: 0 !important; }
  .swal2-popup .swal2-title { font-size: 1.15rem !important; }
  .tool-picker { max-height: 60dvh; }
  .tool-pick-name { font-size: .82rem; }
  .tool-pick-desc { font-size: .7rem; }
}