.btn-primary {
  background: var(--accent); color: var(--text-on-accent);
  border-radius: var(--radius-sm);
  padding: 7px 16px; font-weight: 600; font-size: 13px;
  transition: background .15s;
}
.btn-primary:hover { background: var(--accent-hover); }

.btn-ghost {
  background: transparent; color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 7px 14px; font-size: 13px;
  transition: background .15s;
}
.btn-ghost:hover { background: var(--bg-hover); }

.btn-icon {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: background .1s, color .1s;
}
.btn-icon:hover { background: var(--bg-hover); color: var(--text); }

.btn-full { width: 100%; justify-content: center; }

.hidden { display: none !important; }

/* User menu / avatar */
.user-menu { position: relative; display: flex; align-items: center; gap: 8px; cursor: pointer; }
.avatar {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700;
  text-transform: uppercase;
}
.dropdown {
  position: absolute; top: 36px; right: 0;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  min-width: 160px;
  z-index: 200;
  padding: 4px;
}
.dropdown button {
  width: 100%; text-align: left;
  padding: 8px 12px; font-size: 13px;
  border-radius: var(--radius-sm);
  color: var(--text);
}
.dropdown button:hover { background: var(--bg-hover); }
.dropdown hr { border: none; border-top: 1px solid var(--border); margin: 4px 0; }

/* Toast */
#toast-container {
  position: fixed; bottom: 20px; right: 20px;
  display: flex; flex-direction: column; gap: 8px; z-index: 9999;
}
.toast {
  padding: 10px 16px;
  border-radius: var(--radius);
  color: white; font-size: 13px;
  box-shadow: var(--shadow-md);
  animation: slideIn .2s ease;
}
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.info { background: var(--accent); }
@keyframes slideIn {
  from { transform: translateX(60px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Folder loading */
.folder-loading { padding: 12px 10px; color: var(--text-muted); font-size: 13px; }

/* Contact view */
.contacts-view { padding: 24px; max-width: 760px; margin: 0 auto; }
.contacts-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.contacts-header h2 { font-size: 18px; font-weight: 700; }
.contact-list { display: flex; flex-direction: column; gap: 1px; }
.contact-item {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 16px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 4px;
}
.contact-avatar {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--accent-light);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 14px;
  flex-shrink: 0;
}
.contact-info { flex: 1; }
.contact-name { font-weight: 600; font-size: 14px; }
.contact-email { font-size: 12px; color: var(--text-muted); }
.contact-actions { display: flex; gap: 4px; }

/* Settings view */
.settings-view { padding: 28px 28px 60px; max-width: 800px; margin: 0 auto; }
.settings-view h2 { font-size: 20px; font-weight: 700; margin-bottom: 28px; }
.settings-section {
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.settings-section:last-of-type { border-bottom: none; }
.settings-section h3 {
  font-size: 11px; text-transform: uppercase; letter-spacing: .8px;
  color: var(--text-muted); margin-bottom: 16px; font-weight: 600;
}
.settings-row { display: flex; gap: 20px; flex-wrap: wrap; }
.settings-row .form-group { flex: 1; min-width: 160px; }
.settings-actions { display: flex; align-items: center; gap: 16px; margin-top: 8px; }
.settings-save-hint { font-size: 13px; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 5px; color: var(--text-secondary); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  transition: border-color .15s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--accent);
}
.form-group textarea { resize: vertical; min-height: 80px; }
.sig-hint { font-size: 13px; color: var(--text-muted); margin-bottom: 14px; }

/* ── Signature Editor ──────────────────────────────────────────────────── */
.sig-section { max-width: 100%; }
.sig-editor-wrap {
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-panel);
  margin-bottom: 16px;
}
.sig-toolbar {
  display: flex; align-items: center; flex-wrap: wrap; gap: 2px;
  padding: 6px 8px;
  background: var(--bg-hover);
  border-bottom: 1px solid var(--border);
}
.sig-sep {
  width: 1px; height: 18px;
  background: var(--border);
  margin: 0 4px; flex-shrink: 0;
}
.sig-btn {
  min-width: 28px; height: 28px; padding: 0 5px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 5px;
  font-size: 13px; font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer; border: none; background: none;
  transition: background .1s, color .1s;
  position: relative;
}
.sig-btn:hover { background: var(--bg-active); color: var(--text); }
.sig-btn.active { background: var(--accent-light); color: var(--accent); }
.sig-color-label, .sig-img-label { cursor: pointer; }
.sig-select {
  height: 28px;
  padding: 0 6px;
  font-size: 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text);
  cursor: pointer;
  outline: none;
}
.sig-select-sm { width: 52px; }
.sig-editor {
  min-height: 180px;
  max-height: 400px;
  overflow-y: auto;
  padding: 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  outline: none;
  background: var(--bg-panel);
}
.sig-editor:empty::before {
  content: attr(data-placeholder);
  color: var(--text-muted);
  pointer-events: none;
}
.sig-editor img {
  max-width: 100%;
  cursor: pointer;
  outline: 2px solid transparent;
  transition: outline .1s;
}
.sig-editor img:hover { outline-color: var(--accent); }
.sig-editor a { color: var(--accent); text-decoration: underline; }

/* Preview */
.sig-preview-wrap {
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.sig-preview-label {
  padding: 8px 14px;
  font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .6px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
}
.sig-preview {
  padding: 16px;
  font-size: 14px; line-height: 1.6;
  min-height: 60px;
  background: #fff;
  color: #333;
}
[data-theme="dark"] .sig-preview { background: #1a1d2e; color: #e8eaf6; }

/* Search results */
.search-header { padding: 12px 16px; border-bottom: 1px solid var(--border-light); font-size: 13px; color: var(--text-muted); }

.error-msg { color: var(--danger); font-size: 13px; padding: 8px 0; }

/* ── Bulk toolbar ────────────────────────────────────────────────────────────*/
.bulk-toolbar {
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
  padding: 6px 12px;
  background: var(--accent-light);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}
.bulk-count { font-weight: 600; color: var(--accent); margin-right: 4px; }
.btn-sm {
  padding: 4px 10px; font-size: 12px; font-weight: 500;
  border-radius: var(--radius-sm);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer; transition: background .1s;
}
.btn-sm:hover { background: var(--bg-hover); color: var(--text); }
.btn-accent { background: var(--accent); color: white; border-color: var(--accent); }
.btn-accent:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-danger { background: var(--danger); color: white; border-color: var(--danger); }
.btn-danger:hover { opacity: .88; }
.btn-danger-sm { padding: 2px 7px; font-size: 11px; background: transparent; border: none; color: var(--danger); cursor: pointer; }
.btn-danger-sm:hover { background: #fee2e2; border-radius: 4px; }
.btn-ghost-sm { background: transparent; border: 1px solid var(--border); color: var(--text-muted); }

/* ── Label chips ─────────────────────────────────────────────────────────────*/
.label-chip {
  display: inline-flex; align-items: center;
  padding: 2px 7px; border-radius: 20px;
  font-size: 11px; font-weight: 600;
  border: 1px solid transparent;
  white-space: nowrap;
}
.label-chip-lg {
  padding: 3px 10px; font-size: 12px;
  margin: 2px 4px 2px 0;
}
.msg-labels { display: flex; flex-wrap: wrap; gap: 3px; }

/* ── Thread view ─────────────────────────────────────────────────────────────*/
.thread-item { cursor: pointer; }
.thread-msg-header { display: flex; align-items: center; gap: 8px; }
.thread-count {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 20px; height: 20px; padding: 0 4px;
  background: var(--accent); color: white;
  border-radius: 10px; font-size: 11px; font-weight: 700;
}
.thread-messages { padding: 4px 0 4px 24px; }
.thread-msg-row {
  display: flex; gap: 10px; align-items: baseline;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer; font-size: 13px;
}
.thread-msg-row:hover { background: var(--bg-hover); }
.thread-msg-from { font-weight: 600; min-width: 120px; color: var(--text); }
.thread-msg-subject { flex: 1; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.thread-msg-date { font-size: 11px; color: var(--text-muted); white-space: nowrap; }

/* ── Snooze picker ───────────────────────────────────────────────────────────*/
.snooze-picker {
  display: flex; align-items: center; flex-wrap: wrap; gap: 6px;
  padding: 10px 16px;
  background: var(--bg-hover);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}
.snooze-label { font-weight: 600; color: var(--text-secondary); }
.snooze-opt {
  padding: 4px 10px; border-radius: 20px;
  background: var(--bg-panel); border: 1px solid var(--border);
  color: var(--text-secondary); font-size: 12px; cursor: pointer;
  transition: background .1s;
}
.snooze-opt:hover, .snooze-opt.active {
  background: var(--accent-light); color: var(--accent); border-color: var(--accent);
}
#snooze-custom {
  padding: 4px 8px; font-size: 12px;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text); outline: none;
}

/* ── Label picker ────────────────────────────────────────────────────────────*/
.label-picker {
  padding: 12px 16px;
  background: var(--bg-hover);
  border-bottom: 1px solid var(--border);
  font-size: 13px; max-width: 360px;
}
.label-picker-inner { display: flex; flex-direction: column; gap: 4px; margin-bottom: 8px; }
.label-toggle-row {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 8px; border-radius: var(--radius-sm);
  cursor: pointer;
}
.label-toggle-row:hover { background: var(--bg-active); }
.label-dot {
  width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0;
}

/* ── Read receipt banner ─────────────────────────────────────────────────────*/
.receipt-banner {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px;
  background: #fffbeb; border-bottom: 1px solid #fde68a;
  font-size: 13px; color: #92400e;
}
[data-theme="dark"] .receipt-banner { background: #2d2607; border-color: #5c4a00; color: #fde68a; }

/* ── Undo send bar ───────────────────────────────────────────────────────────*/
.undo-send-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 16px;
  background: #f0f9ff; border-top: 1px solid #bae6fd;
  font-size: 13px; color: #0369a1;
}
[data-theme="dark"] .undo-send-bar { background: #0c2a3e; border-color: #1e4d6a; color: #7dd3fc; }

/* ── Compose receipt row ─────────────────────────────────────────────────────*/
.compose-receipt-row {
  padding: 4px 16px 8px;
  border-top: 1px solid var(--border);
}

/* ── Reader action buttons ───────────────────────────────────────────────────*/
.reader-actions { display: flex; flex-wrap: wrap; gap: 6px; padding: 8px 16px; border-bottom: 1px solid var(--border); }
.reader-labels { display: flex; flex-wrap: wrap; gap: 4px; min-height: 4px; margin-top: 4px; }

/* ── Filters UI ──────────────────────────────────────────────────────────────*/
.filter-row {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 12px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius); margin-bottom: 6px;
}
.filter-row-main { flex: 1; min-width: 0; }
.filter-name { font-weight: 600; font-size: 13px; color: var(--text); display: block; margin-bottom: 2px; }
.filter-desc { font-size: 12px; color: var(--text-secondary); }
.filter-row-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.filter-form { background: var(--bg-hover); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px; margin-top: 12px; }
.filter-form-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; align-items: center; }
.filter-form-row:last-child { margin-bottom: 0; }
.filter-select {
  padding: 6px 10px; font-size: 12px;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text); outline: none;
  cursor: pointer;
}
.filter-input {
  padding: 6px 10px; font-size: 12px;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text); outline: none; flex: 1;
}
.filter-input:focus, .filter-select:focus { border-color: var(--accent); }

/* Toggle switch */
.filter-toggle { position: relative; display: inline-block; width: 32px; height: 18px; cursor: pointer; }
.filter-toggle input { opacity: 0; width: 0; height: 0; }
.toggle-track {
  position: absolute; inset: 0;
  background: var(--border); border-radius: 9px;
  transition: background .2s;
}
.filter-toggle input:checked + .toggle-track { background: var(--accent); }
.toggle-track::after {
  content: '';
  position: absolute; left: 2px; top: 2px;
  width: 14px; height: 14px; border-radius: 50%;
  background: white; transition: left .2s;
}
.filter-toggle input:checked + .toggle-track::after { left: 16px; }

/* Thread toggle button active state */
#thread-toggle-btn.active { background: var(--accent-light); color: var(--accent); }

/* ── Notification settings ───────────────────────────────────────────────────*/
.notif-settings { display: flex; flex-direction: column; gap: 12px; }
.notif-row {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 12px 14px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.notif-label { font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 2px; }
.notif-hint { font-size: 12px; color: var(--text-muted); }