/* ============================================
   CLAUDE-LIKE RESPONSIVE SIDEBAR
   Using custom design tokens
   ============================================ */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap");

:root {
  --sb-bg: #0f172a;
  --sb-bg-hover: rgba(255, 255, 255, 0.06);
  --sb-bg-active: rgba(0, 115, 230, 0.22);
  --sb-border: rgba(255, 255, 255, 0.07);
  --sb-text: #e2e8f0;
  --sb-text-muted: #64748b;
  --sb-accent: #0073e6;
  --sb-accent-soft: rgba(0, 115, 230, 0.18);
  --sb-new-hover: rgba(0, 115, 230, 0.15);
  --sb-radius: 9px;
  --sb-font: "Inter", "SF Pro Text", system-ui, sans-serif;
  --sb-transition: 0.24s cubic-bezier(0.165, 0.85, 0.45, 1);
  --sb-expanded-width: 280px;
  --sb-collapsed-width: 64px;
  --sb-icon-size: 20px;
}

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

/* ════════════════════════════════════════════
   WORKSPACE LAYOUT
   ════════════════════════════════════════════ */
.doc-workspace {
  display: flex;
  height: 90vh;
  position: relative;
  overflow: hidden;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  font-family: var(--sb-font);
}

/* ════════════════════════════════════════════
   SIDEBAR
   ════════════════════════════════════════════ */
.doc-sidebar {
  width: var(--sb-expanded-width);
  min-width: var(--sb-expanded-width);
  background: var(--sb-bg);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow: hidden;
  position: relative;
  z-index: 100;
  border-right: 1px solid var(--sb-border);
  transition:
    width var(--sb-transition),
    min-width var(--sb-transition);
}

/* ── Collapsed (icon-rail) desktop ── */
.doc-sidebar.collapsed {
  width: var(--sb-collapsed-width);
  min-width: var(--sb-collapsed-width);
}

/* Hide list and label when collapsed */
.doc-sidebar.collapsed ul,
.doc-sidebar.collapsed .sidebar-section-label {
  display: none !important;
}

/* ════════════════════════════════════════════
   SIDEBAR HEADER
   ════════════════════════════════════════════ */
.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 12px 10px;
  flex-shrink: 0;
  gap: 8px;
}

.sidebar-logo {
  font-size: 14px;
  font-weight: 600;
  color: var(--sb-text);
  letter-spacing: -0.2px;
  white-space: nowrap;
  overflow: hidden;
  opacity: 1;
  transition:
    opacity var(--sb-transition),
    width var(--sb-transition);
  flex: 1;
}

.doc-sidebar.collapsed .sidebar-logo {
  opacity: 0;
  width: 0;
}

/* Close / Collapse button */
.sidebar-close-btn {
  width: 34px;
  height: 34px;
  border-radius: var(--sb-radius);
  border: none;
  background: transparent;
  color: var(--sb-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition:
    background var(--sb-transition),
    color var(--sb-transition),
    transform var(--sb-transition);
  margin-left: auto;
}

.sidebar-close-btn:hover {
  background: var(--sb-bg-hover);
  color: var(--sb-text);
}

/* Rotate arrow when collapsed so it points right */
.doc-sidebar.collapsed .sidebar-close-btn {
  transform: rotate(180deg);
  display: none;
}
.doc-sidebar.collapsed .sidebar-logo {
  display: none;
}
.doc-sidebar.collapsed #doc-search-input {
  display: none;
}
.sidebar-close-btn svg {
  width: var(--sb-icon-size);
  height: var(--sb-icon-size);
}

/* ════════════════════════════════════════════
   NEW DOCUMENT BUTTON
   ════════════════════════════════════════════ */
.new-chat-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 2px 10px 10px;
  padding: 9px 11px;
  border-radius: var(--sb-radius);
  background: var(--sb-accent-soft);
  border: 1px solid rgba(0, 115, 230, 0.25);
  color: #93c5fd;
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--sb-font);
  transition:
    background var(--sb-transition),
    border-color var(--sb-transition),
    color var(--sb-transition),
    padding var(--sb-transition),
    margin var(--sb-transition);
  white-space: nowrap;
  overflow: hidden;
  min-width: 0;
}

.new-chat-btn:hover {
  background: var(--sb-new-hover);
  border-color: rgba(0, 115, 230, 0.45);
  color: #bfdbfe;
}

.new-chat-btn svg {
  width: var(--sb-icon-size);
  height: var(--sb-icon-size);
  flex-shrink: 0;
  color: var(--sb-accent);
}

/* Hide label text when collapsed */
.new-chat-btn .btn-label {
  overflow: hidden;
  opacity: 1;
  max-width: 200px;
  transition:
    opacity var(--sb-transition),
    max-width var(--sb-transition);
  white-space: nowrap;
}

.doc-sidebar.collapsed .new-chat-btn .btn-label {
  opacity: 0;
  max-width: 0;
}

/* Center icon when collapsed */
.doc-sidebar.collapsed .new-chat-btn {
  justify-content: flex-end;
  display: flex;
  padding: 5px;
  margin: 10px 7px 3px;
}

.sidebar-section-label {
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sb-text-muted);
  padding: 6px 14px 4px;
  white-space: nowrap;
  overflow: hidden;
  opacity: 1;
  transition: opacity var(--sb-transition);
}

.doc-sidebar.collapsed .sidebar-section-label {
  opacity: 0;
}
.doc-sidebar.collapsed .search-icon-btn {
  display: none;
}

.search-area {
  padding: 6px 10px 7px;
  flex-shrink: 0;
  overflow: hidden;
  transition:
    opacity var(--sb-transition),
    max-height var(--sb-transition),
    padding var(--sb-transition);
  max-height: 60px;
  opacity: 1;
}
.doc-sidebar.collapsed .search-area {
  padding: 7px 8px 12px !important;
}
.doc-sidebar.collapsed .search-box {
  padding: 10px 14px;
  cursor: pointer;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius);
  padding: 10px 16px;
  transition:
    border-color var(--sb-transition),
    background var(--sb-transition),
    box-shadow var(--sb-transition);
  cursor: text;
}
.doc-sidebar.collapsed .sidebar-section-label {
  display: none;
}
.search-box:focus-within {
  border-color: rgba(0, 115, 230, 0.55);
  background: rgba(0, 115, 230, 0.07);
  box-shadow: 0 0 0 3px rgba(0, 115, 230, 0.12);
}

.search-icon {
  color: var(--sb-text-muted);
  display: flex;
  align-items: center;
  flex-shrink: 0;
  transition: color var(--sb-transition);
}

.search-box:focus-within .search-icon {
  color: var(--sb-accent);
}

#doc-search-input {
  flex: 1 !important;
  background: transparent !important;
  border: none !important;
  outline: none !important;
  color: var(--sb-text) !important;
  font-size: 12.5px !important;
  font-family: var(--sb-font) !important;
  min-width: 0 !important;
  padding: 0 !important;
  caret-color: var(--sb-accent) !important;
}

#doc-search-input::placeholder {
  color: var(--sb-text-muted) !important;
  font-size: 12px !important;
}

.search-clear {
  background: transparent;
  border: none;
  color: var(--sb-text-muted);
  cursor: pointer;
  font-size: 11px;
  padding: 0;
  line-height: 1;
  display: none; /* shown via JS when input has value */
  border-radius: 3px;
  transition: color var(--sb-transition);
  flex-shrink: 0;
}

.search-clear:hover {
  color: var(--sb-text);
}
.search-clear.visible {
  display: flex;
  align-items: center;
}

.search-icon-btn {
  display: none; /* only visible in collapsed mode */
  width: 36px;
  height: 36px;
  margin: 0 auto 8px;
  align-items: center;
  justify-content: center;
  border-radius: var(--sb-radius);
  background: transparent;
  border: none;
  color: var(--sb-text-muted);
  cursor: pointer;
  transition:
    background var(--sb-transition),
    color var(--sb-transition);
}

.search-icon-btn:hover {
  background: var(--sb-bg-hover);
  color: var(--sb-text);
}

.search-icon-btn svg {
  width: 15px;
  height: 15px;
}

.search-no-results {
  display: none;
  padding: 14px 14px;
  color: var(--sb-text-muted);
  font-size: 12px;
  font-family: var(--sb-font);
  text-align: center;
  line-height: 1.5;
}

.search-no-results.visible {
  display: block;
}

/* Hide no-results when collapsed */
.doc-sidebar.collapsed .search-no-results {
  display: none !important;
}

/* Highlight matched text in doc titles */
.doc-title mark {
  background: rgba(0, 115, 230, 0.3);
  color: #93c5fd;
  border-radius: 2px;
  padding: 0 1px;
}

.doc-sidebar ul {
  list-style: none;
  padding: 0 6px;
  margin: 0;
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  min-height: unset;
  max-height: unset;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.08) transparent;
}

.doc-sidebar ul::-webkit-scrollbar {
  width: 4px;
}
.doc-sidebar ul::-webkit-scrollbar-track {
  background: transparent;
}
.doc-sidebar ul::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

.doc-sidebar li {
  margin-bottom: 1px;
  position: relative;
}

/* ── Doc Link Wrapper ── */
.doc-link-wrapper {
  display: flex;
  align-items: center;
  border-radius: var(--sb-radius);
  transition: background var(--sb-transition);
  position: relative;
  overflow: visible;
  padding-right: 2px;
}

.doc-link-wrapper:hover {
  background: var(--sb-bg-hover);
}

.doc-link-wrapper:has(.doc-link.active) {
  background: var(--sb-bg-active);
}

/* Accent left bar for active item */
.doc-link-wrapper:has(.doc-link.active)::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20%;
  height: 60%;
  width: 3px;
  background: var(--sb-accent);
  border-radius: 0 3px 3px 0;
}

.doc-title-container {
  flex: 1;
  min-width: 0;
}

/* Doc item icon — always visible, used as identifier in collapsed mode */
.doc-item-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--sb-text-muted);
  transition: color var(--sb-transition);
  margin-left: 2px;
}

.doc-link-wrapper:hover .doc-item-icon,
.doc-link-wrapper:has(.doc-link.active) .doc-item-icon {
  color: var(--sb-text);
}

.doc-item-icon svg {
  width: 15px;
  height: 15px;
}

/* ── Doc Link ── */
.doc-link {
  display: block;
  padding: 0px 0px 0px 2px;
  text-decoration: none;
  color: var(--sb-text);
  font-size: 13px;
  font-family: var(--sb-font);
  background: none;
  border-radius: var(--sb-radius);
  transition:
    color var(--sb-transition),
    opacity var(--sb-transition);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.doc-link:hover {
  color: #f1f5f9;
  background: none;
}
.doc-link.active {
  color: #f1f5f9;
  font-weight: 500;
  background: none;
}

/* Fade out + no clicks when collapsed */
.doc-sidebar.collapsed .doc-title-container {
  opacity: 0;
  pointer-events: none;
  width: 0;
  overflow: hidden;
  transition:
    opacity var(--sb-transition),
    width var(--sb-transition);
}

.doc-title {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  /*text-overflow: ellipsis;*/
  max-width: 180px;
  color: white;
}

.doc-date {
  display: block;
  font-size: 10px;
  color: var(--sb-text-muted);
  margin-top: 1px;
}

/* ── Three-dot Menu ── */
.doc-menu {
  flex-shrink: 0;

  transition: opacity var(--sb-transition);
}

.doc-menu-dot {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  cursor: pointer;
  color: var(--sb-text-muted);
  font-size: 16px;
  opacity: 0;
  line-height: 1;
  transition:
    opacity var(--sb-transition),
    background var(--sb-transition),
    color var(--sb-transition);
}

.doc-link-wrapper:hover .doc-menu-dot {
  opacity: 1;
}

.doc-menu-dot:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--sb-text);
}

/* Hide three-dot when collapsed */
.doc-sidebar.collapsed .doc-menu {
  display: none;
}
.doc-sidebar.collapsed .sidebar-header {
  display: none;
}
/* Make rail take full height and center the icon vertically if needed */
.doc-sidebar.collapsed .doc-icons-rail {
  justify-content: center !important;

  margin: 3px 6px 4px;
  border-radius: var(--sb-radius);
  background: var(--sb-accent-soft);
  border: 1px solid rgba(0, 115, 230, 0.25);
  display: flex !important;
  flex-direction: column;
  align-items: center;
  height: 35px !important;
  cursor: pointer;
}

/* Hide rail when not collapsed */
.doc-sidebar:not(.collapsed) .doc-icons-rail {
  display: none !important;
}

/* History button – exact same size & feel as search-icon-btn and collapsed new-chat-btn */
.history-icon-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--sb-radius);
  background: transparent;
  border: none;
  color: var(--sb-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    background var(--sb-transition),
    color var(--sb-transition),
    transform 0.18s ease;
}

.history-icon-btn:hover {
  /* background: var(--sb-bg-hover); */
  color: var(--sb-text);
  transform: scale(1.08);
}

.history-icon-btn:active {
  transform: scale(0.96);
}

/* Icon inside button – same as search icon */
.history-icon-btn svg {
  width: 20px; /* slightly larger than search (15px) but still balanced */
  height: 20px;
}

/* Optional: active state (if you want to highlight when flyout is open) */
.history-icon-btn.active,
.history-icon-btn[aria-expanded="true"] {
  background: var(--sb-bg-active);
  color: var(--sb-accent);
}
/* ── Context Menu (fixed positioned, never clipped) ── */
.doc-menu-modal {
  display: none;
  position: fixed;
  width: 148px;
  background: #1e293b;
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius);
  box-shadow:
    0 8px 28px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(255, 255, 255, 0.04);
  z-index: 9999;
  padding: 4px 0;
}

.doc-menu-modal span {
  display: block;
}

.doc-menu-modal span a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  color: #cbd5e1;
  text-decoration: none;
  font-size: 13px;
  font-family: var(--sb-font);
  transition:
    background var(--sb-transition),
    color var(--sb-transition);
}

.doc-menu-modal span a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #f1f5f9;
}

.doc-menu-modal span .rename-doc::before {
  content: "✎";
  font-size: 15px;
  opacity: 0.7;
}

.doc-menu-modal span .delete-doc {
  color: #f87171;
}
.doc-menu-modal span .delete-doc:hover {
  background: rgba(239, 68, 68, 0.1) !important;
  color: #fca5a5 !important;
}
.doc-menu-modal span .delete-doc::before {
  content: "🗑";
}

/* ════════════════════════════════════════════
   USER INFO
   ════════════════════════════════════════════ */
.user-info {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-top: 1px solid var(--sb-border);
  background: rgba(0, 0, 0, 0.15);
  overflow: hidden;
  transition: padding var(--sb-transition);
  margin-top: auto;
}

.doc-sidebar.collapsed .user-info {
  padding: 10px 8px;
  justify-content: center;
}

.user-avatar img {
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.12);
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.user-details {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  opacity: 1;
  transition:
    opacity var(--sb-transition),
    max-width var(--sb-transition);
  max-width: 200px;
}

.doc-sidebar.collapsed .user-details {
  opacity: 0;
  max-width: 0;
  pointer-events: none;
}

.user-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 6px;
}

.user-name {
  font-weight: 500;
  font-size: 13px;
  color: var(--sb-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-family: var(--sb-font);
}

.remaining-balance {
  font-size: 11px;
  color: var(--sb-text-muted);
  white-space: nowrap;
  font-family: var(--sb-font);
}

.remaining-balance strong {
  color: #93c5fd;
  font-weight: 500;
}

.upgrade-btn {
  background: rgba(0, 115, 230, 0.2);
  color: #93c5fd;
  font-size: 10px;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: 6px;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid rgba(0, 115, 230, 0.25);
  transition:
    background var(--sb-transition),
    color var(--sb-transition);
  flex-shrink: 0;
  font-family: var(--sb-font);
}

.upgrade-btn:hover {
  background: rgba(0, 115, 230, 0.35);
  color: #bfdbfe;
}

/* ════════════════════════════════════════════
   OPEN TOGGLE BUTTON
   ════════════════════════════════════════════ */
.sidebar-toggle-btn {
  position: sticky;
  top: 0px;
  left: 5px;
  width: 34px;
  height: 34px;
  border-radius: var(--sb-radius);
  border: 1px solid #e2e8f0;
  background: royalblue !important;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
  transition:
    background 0.15s,
    color 0.15s,
    box-shadow 0.15s,
    opacity var(--sb-transition);
  opacity: 0;
  pointer-events: none;
}
.sidebar-toggle-btn.scrolled {
  top: 0px;
}
.sidebar-toggle-btn.visible {
  opacity: 1;
  pointer-events: auto;
}

.sidebar-toggle-btn:hover {
  background: #f8fafc;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.sidebar-toggle-btn svg {
  width: var(--sb-icon-size);
  height: var(--sb-icon-size);
}

/* Hide old WP buttons */
#sidebar-toggle,
#close-sidebar {
  display: none !important;
}

/* ════════════════════════════════════════════
   MAIN CONTENT
   ════════════════════════════════════════════ */
.doc-content {
  flex: 1;
  overflow-y: auto;
  padding: 10px;
  position: relative;
  min-width: 0;
  background: #f8fafc;
}

.doc-content::-webkit-scrollbar {
  width: 6px;
}
.doc-content::-webkit-scrollbar-track {
  background: transparent;
}
.doc-content::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

/* Dark overlay — mobile only */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 99;
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  animation: fadeOverlay 0.2s ease;
}

@keyframes fadeOverlay {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.sidebar-overlay.active {
  display: block;
}

/* ════════════════════════════════════════════
   DELETE MODAL
   ════════════════════════════════════════════ */
#delete-confirmation-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  z-index: 10000;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}

#delete-confirmation-modal .modal-content {
  background: #1e293b;
  border: 1px solid var(--sb-border);
  padding: 26px 24px;
  border-radius: 12px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.55);
  color: #cbd5e1;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  min-width: 300px;
  max-width: 90vw;
  font-family: var(--sb-font);
  animation: modalPop 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalPop {
  from {
    opacity: 0;
    transform: translate(-50%, -54%) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}

#delete-confirmation-modal .modal-content span {
  color: #f1f5f9;
  display: block;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

#delete-confirmation-modal .modal-content p {
  font-size: 14px !important;
  line-height: 1.55;
  color: #94a3b8;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 20px;
}

#cancel-delete {
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.06);
  color: #cbd5e1;
  cursor: pointer;
  font-size: 13px;
  font-family: var(--sb-font);
  transition:
    background 0.15s,
    color 0.15s;
}

#cancel-delete:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #f1f5f9;
}

#confirm-delete {
  padding: 8px 16px;
  border: none;
  border-radius: 7px;
  background: #ef4444;
  color: white;
  cursor: pointer;
  font-size: 13px;
  font-family: var(--sb-font);
  font-weight: 500;
  transition: background 0.15s;
}

#confirm-delete:hover {
  background: #dc2626;
}

body.no-scroll {
  overflow: hidden;
}

/* ════════════════════════════════════════════
   BUTTON BOX
   ════════════════════════════════════════════ */
.button_box {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* ════════════════════════════════════════════
   THEME PICKER
   ════════════════════════════════════════════ */
.theme-picker {
  position: relative;
  display: inline-block;
}

.theme-trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 7px 12px;
  font-weight: 500;
  font-size: 13px;
  font-family: var(--sb-font);
  cursor: pointer;
  color: #334155;
  transition: background 0.15s;
}

.theme-trigger:hover {
  background: #e2e8f0;
}

.theme-menu {
  position: absolute;
  top: 110%;
  right: 0;
  z-index: 9999;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
  padding: 10px;
  display: none;
  min-width: 300px;
  max-height: 480px;
  overflow-y: auto;
}

.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(88px, 1fr));
  gap: 8px;
  margin-top: 8px;
}

.theme-item {
  border: 1px solid #e2e8f0;
  border-radius: 7px;
  padding: 6px;
  text-align: center;
  cursor: pointer;
  font-size: 12px;
  transition:
    background 0.15s,
    border-color 0.15s;
}

.theme-item:hover {
  background: #f8fafc;
  border-color: #94a3b8;
}

.theme-label {
  text-transform: none;
  color: #334155;
  display: flex;
  align-items: center;
  gap: 5px;
}

/* ════════════════════════════════════════════
   UI ERROR BOX
   ════════════════════════════════════════════ */
#uiErrorBox {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  min-width: 300px;
  max-width: 90vw;
  padding: 14px 28px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  font-family: var(--sb-font);
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.35s ease,
    top 0.35s ease;
}

#uiErrorBox:not(.hidden) {
  opacity: 1;
  pointer-events: auto;
}
#uiErrorBox.error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}
#uiErrorBox.success {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #bbf7d0;
}
#uiErrorBox.warning {
  background: #fffbeb;
  color: #92400e;
  border: 1px solid #fde68a;
}

/* ════════════════════════════════════════════
   RESPONSIVE — TABLET
   ════════════════════════════════════════════ */
@media (max-width: 1024px) and (min-width: 769px) {
  :root {
    --sb-expanded-width: 240px;
  }
}

/* ════════════════════════════════════════════
   RESPONSIVE — MOBILE ≤768px
   ════════════════════════════════════════════ */
@media (max-width: 768px) {
  .doc-sidebar {
    position: fixed;
    top: 0px;
    left: 0;
    height: 100dvh;
    width: 270px !important;
    min-width: 270px !important;
    transform: translateX(-100%);
    z-index: 1000;
    border-right: none;
    box-shadow: none;
    transition:
      transform var(--sb-transition),
      box-shadow var(--sb-transition);
  }

  .doc-sidebar.mobile-open {
    transform: translateX(0);
    box-shadow: 6px 0 32px rgba(0, 0, 0, 0.35);
  }

  .doc-sidebar.collapsed {
    width: 270px !important;
    min-width: 270px !important;
  }

  .sidebar-toggle-btn {
    display: flex !important;
    opacity: 1 !important;
    pointer-events: auto !important;
  }

  .doc-content {
    padding-top: 10px;
  }
  .button_box {
    flex-wrap: wrap;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .doc-content {
    padding: 10px 12px 16px;
  }

  .button_box {
    flex-direction: column;
    align-items: stretch;
    margin-top: 4px;
  }

  button#downloadBtn,
  button#saveDocBtn {
    text-align: center;
  }

  .theme-menu {
    right: auto;
    left: 0;
    min-width: 260px;
  }
}

/* ── Icons rail (collapsed mode only) ── */
.doc-icons-rail {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  overflow-y: auto;
  height: 100%;
  scrollbar-width: none;
}

.doc-icons-rail::-webkit-scrollbar {
  display: none;
}

.doc-icon-item {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: var(--sb-text-muted);
  cursor: pointer;
  transition: all var(--sb-transition);
  position: relative;
}

.doc-icon-item:hover,
.doc-icon-item.active {
  background: var(--sb-bg-hover);
  color: var(--sb-text);
}

.doc-icon-item.active::after {
  content: "";
  position: absolute;
  right: -2px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 28px;
  background: var(--sb-accent);
  border-radius: 2px;
}

.doc-icon-item svg {
  width: 20px;
  height: 20px;
}

.history-flyout {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95); /* start slightly smaller + centered */
  width: 165vw;
  max-width: 600px; /* wider than before for better list readability */
  height: 85vh;
  max-height: 780px;
  background: var(--sb-bg);
  border: 1px solid var(--sb-border);
  border-radius: 16px;
  box-shadow:
    0 25px 80px rgba(0, 0, 0, 0.65),
    0 0 0 1px rgba(255, 255, 255, 0.1);
  z-index: 10001; /* higher than backdrop (9997) */
  opacity: 0;
  pointer-events: none;
  transition: all 0.32s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Visible state */
.history-flyout.visible {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  pointer-events: auto;
}

/* Make sure inner content can scroll if needed */
.history-flyout .flyout-content {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch; /* smooth scrolling on iOS */
}

/* Backdrop (should already exist) – ensure z-index is lower */
.flyout-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7); /* slightly darker for contrast */
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 9997; /* below flyout */
  opacity: 0;
  transition: opacity 0.32s ease;
  pointer-events: none;
}

.flyout-backdrop.visible {
  opacity: 1;
  pointer-events: auto;
}

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

.flyout-close {
  background: none;
  border: none;
  color: var(--sb-text-muted);
  font-size: 20px;
  cursor: pointer;
}

.flyout-search-container {
  padding: 12px 16px;
  border-bottom: 1px solid var(--sb-border);
  position: relative;
}

#flyout-search {
  width: 100%;
  padding: 9px 36px 9px 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius);
  color: var(--sb-text);
  font-size: 13px;
}

#flyout-clear {
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--sb-text-muted);
  font-size: 16px;
  cursor: pointer;
  display: none;
}

.flyout-content {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}

.flyout-item {
  display: flex;
  flex-direction: column;
  padding: 10px 16px;
  color: var(--sb-text);
  cursor: pointer;
  transition: background 0.18s;
}

.flyout-item:hover,
.flyout-item.active {
  background: var(--sb-bg-hover);
}

.flyout-item-title {
  font-size: 13.5px;
  font-weight: 500;
}

.flyout-item-date {
  font-size: 11px;
  color: var(--sb-text-muted);
  margin-top: 3px;
}

.flyout-no-results {
  padding: 40px 20px;
  text-align: center;
  color: var(--sb-text-muted);
  font-size: 13px;
}