:root {
  color-scheme: light dark;
  --bg-gradient-start: #0f172a;
  --bg-gradient-end: #1e293b;
  --surface: rgba(15, 23, 42, 0.75);
  --surface-strong: rgba(15, 23, 42, 0.95);
  --header-bg: rgba(15, 23, 42, 0.85);
  --header-offset: 0px;
  --input-bg: rgba(15, 23, 42, 0.6);
  --text: #e2e8f0;
  --text-muted: rgba(226, 232, 240, 0.7);
  --text-subtle: rgba(226, 232, 240, 0.75);
  --accent: #38bdf8;
  --accent-dark: #0ea5e9;
  --border: rgba(148, 163, 184, 0.4);
  --button-bg: rgba(148, 163, 184, 0.12);
  --button-bg-hover: rgba(148, 163, 184, 0.2);
  --button-border-hover: rgba(148, 163, 184, 0.3);
  --overlay: rgba(15, 23, 42, 0.75);
  --shadow: rgba(15, 23, 42, 0.4);
  --surface-shadow: rgba(15, 23, 42, 0.45);
  --strong-shadow: rgba(15, 23, 42, 0.7);
  --drive-menu-label-bg: rgba(15, 23, 42, 0.55);
  --drive-menu-label-border: rgba(148, 163, 184, 0.4);
  --drive-menu-button-bg: rgba(15, 23, 42, 0.45);
  --drive-menu-button-border: rgba(148, 163, 184, 0.28);
  --drive-menu-icon-bg-disabled: rgba(15, 23, 42, 0.35);
  --drive-menu-button-disabled-bg: rgba(15, 23, 42, 0.25);
  --drive-menu-button-disabled-border: rgba(148, 163, 184, 0.22);
  --drive-menu-surface: linear-gradient(140deg, rgba(15, 23, 42, 0.92), rgba(30, 41, 59, 0.72));
  --drive-menu-border: rgba(148, 163, 184, 0.45);
  --drive-menu-glow: radial-gradient(circle at top, rgba(56, 189, 248, 0.22), transparent 55%);
  --drive-menu-divider: linear-gradient(180deg, transparent, rgba(148, 163, 184, 0.45), transparent);
  --drive-menu-icon-bg: rgba(14, 23, 42, 0.6);
  --drive-menu-icon-shadow: rgba(15, 23, 42, 0.35);
  --drive-menu-icon-shadow-hover: rgba(15, 23, 42, 0.4);
  --editor-bg: linear-gradient(170deg, rgba(15, 23, 42, 0.92), rgba(30, 41, 59, 0.82));
  --editor-border: rgba(148, 163, 184, 0.45);
  --editor-shadow: 0 24px 55px var(--strong-shadow);
  --table-border: rgba(148, 163, 184, 0.2);
  --row-hover: rgba(56, 189, 248, 0.15);
  --row-selected: rgba(56, 189, 248, 0.25);
  --breadcrumb-text: rgba(226, 232, 240, 0.7);
  --breadcrumb-separator: rgba(148, 163, 184, 0.6);
  --breadcrumb-disabled: rgba(226, 232, 240, 0.6);
  --danger-bg: rgba(248, 113, 113, 0.18);
  --danger-border: rgba(248, 113, 113, 0.35);
  --danger-text: #fecaca;
  --legal-intro-bg: rgba(15, 23, 42, 0.6);
  --font-sans: 'Inter', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: linear-gradient(160deg, var(--bg-gradient-start), var(--bg-gradient-end));
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 12px var(--shadow);
}

header .inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: stretch;
}

.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.app-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-mark {
  display: inline-flex;
  width: 2.75rem;
  height: 2.75rem;
  align-items: center;
  justify-content: center;
  border-radius: 0.9rem;
  box-shadow: 0 12px 24px var(--shadow);
  overflow: hidden;
}

.brand-mark img {
  display: block;
  width: 100%;
  height: 100%;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.9rem;
  border: 1px solid var(--border);
  background: var(--button-bg);
  color: var(--text);
  box-shadow: 0 12px 24px var(--surface-shadow);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease,
    box-shadow 0.2s ease;
  cursor: pointer;
}

.theme-toggle:hover {
  background: var(--button-bg-hover);
  border-color: var(--button-border-hover);
  transform: translateY(-1px);
  box-shadow: 0 16px 28px var(--surface-shadow);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.theme-toggle i {
  font-size: 1.1rem;
}

.theme-toggle[data-theme='dark'] i {
  color: var(--accent);
}

.theme-toggle[data-theme='light'] i {
  color: #facc15;
}

h1 {
  font-size: 1.9rem;
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.toolbar-row {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  align-items: stretch;
}

.mobile-toolbar-toggle {
  display: none;
  align-self: flex-end;
  align-items: center;
  gap: 0.4rem;
  border-radius: 0.65rem;
  border: 1px solid var(--border);
  background: var(--button-bg);
  color: var(--text);
  padding: 0.45rem 0.75rem;
  font-size: 0.85rem;
  line-height: 1.2;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.mobile-toolbar-toggle:hover {
  background: var(--button-bg-hover);
  border-color: var(--button-border-hover);
  transform: translateY(-1px);
}

.mobile-toolbar-toggle:active {
  transform: translateY(0);
}

.mobile-toolbar-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.mobile-toolbar-chevron {
  transition: transform 0.2s ease;
}

.mobile-toolbar-toggle[aria-expanded='true'] .mobile-toolbar-chevron {
  transform: rotate(180deg);
}

.toolbar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.toolbar-row > .toolbar-surface {
  flex: 0 0 100%;
  width: 100%;
}

.toolbar.formatting {
  justify-content: flex-start;
  align-items: center;
  position: relative;
}

.file-menu {
  position: relative;
  display: flex;
  align-items: stretch;
  margin-right: 0.5rem;
}

.file-menu-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding-inline: 0.85rem 0.9rem;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.file-menu-toggle:hover {
  transform: translateY(-1px);
}

.file-menu-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.file-menu-toggle-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 0.55rem;
  background: rgba(56, 189, 248, 0.18);
  color: var(--accent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.file-menu-caret {
  font-size: 0.7rem;
  opacity: 0.85;
  transition: transform 0.2s ease;
}

.file-menu[data-open='true'] .file-menu-caret {
  transform: rotate(180deg);
}

.file-menu-dropdown {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 1.25rem;
  margin-top: 0.35rem;
  border-radius: 1rem;
}

.file-menu-dropdown.toolbar.drive-actions {
  flex-direction: row;
  align-items: stretch;
  row-gap: 1.25rem;
  column-gap: 1.5rem;
}

.file-menu-dropdown[hidden] {
  display: none !important;
}

.file-menu-dropdown .drive-menu-header {
  flex: 1 1 100%;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  margin-bottom: 0.35rem;
}


.file-menu-dropdown .drive-menu-grid {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}



.toolbar.drive-actions {
  flex-direction: column;
  align-items: stretch;
  gap: 0.75rem;
  padding: 0.75rem;
  background: var(--drive-menu-surface);
  border: 1px solid var(--drive-menu-border);
  box-shadow: 0 20px 48px var(--surface-shadow);
  position: relative;
  overflow: hidden;
}

.toolbar.drive-actions::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--drive-menu-glow);
  pointer-events: none;
  opacity: 0.9;
}

.toolbar.drive-actions > * {
  position: relative;
  z-index: 1;
}

.toolbar.drive-actions .drive-menu-label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.65rem;
  border-radius: 0.65rem;
  background: var(--drive-menu-label-bg);
  border: 1px solid var(--drive-menu-label-border);
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.toolbar.drive-actions .drive-menu-label i {
  font-size: 0.85rem;
  opacity: 0.85;
}

.toolbar.drive-actions .drive-menu-grid {
  gap: 0.5rem;
}

.toolbar.drive-actions .drive-button {
  gap: 0.45rem;
  padding: 0.55rem 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: var(--drive-menu-button-bg);
  border: 1px solid var(--drive-menu-button-border);
  border-radius: 0.7rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 10px 20px rgba(15, 23, 42, 0.35);
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.toolbar.drive-actions .drive-button:hover {
  background: rgba(56, 189, 248, 0.18);
  border-color: rgba(56, 189, 248, 0.55);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 14px 28px rgba(15, 23, 42, 0.4);
}

.toolbar.drive-actions .drive-button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.toolbar.drive-actions .drive-button.primary {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.88), rgba(14, 165, 233, 0.92));
  border-color: rgba(14, 165, 233, 0.85);
  color: #0f172a;
  box-shadow: 0 22px 40px rgba(56, 189, 248, 0.45);
}

.toolbar.drive-actions .drive-button.primary:hover {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.96), rgba(14, 165, 233, 0.98));
  box-shadow: 0 26px 46px rgba(56, 189, 248, 0.52);
}

.toolbar.drive-actions .drive-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 0.7rem;
  background: var(--drive-menu-icon-bg);
  color: var(--accent);
  font-size: 0.95rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 6px 16px var(--drive-menu-icon-shadow);
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.toolbar.drive-actions .drive-button:hover .drive-icon {
  background: rgba(56, 189, 248, 0.2);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), 0 12px 20px var(--drive-menu-icon-shadow-hover);
}

.toolbar.drive-actions .drive-button.primary .drive-icon {
  background: rgba(255, 255, 255, 0.86);
  color: #0f172a;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45), 0 12px 22px rgba(15, 23, 42, 0.32);
}

.toolbar.drive-actions .drive-button.primary:hover .drive-icon {
  background: rgba(255, 255, 255, 0.92);
}

.toolbar.drive-actions .drive-button:disabled {
  background: var(--drive-menu-button-disabled-bg);
  border-color: var(--drive-menu-button-disabled-border);
  box-shadow: none;
}

.toolbar.drive-actions .drive-button:disabled .drive-icon {
  opacity: 0.65;
  background: var(--drive-menu-icon-bg-disabled);
}

@media (max-width: 720px) {
  .file-menu {
    width: 100%;
  }

  .file-menu-toggle {
    width: 100%;
    justify-content: center;
  }

  .file-menu-dropdown {
    margin-top: 0.5rem;
  }

  .file-menu-dropdown .drive-menu-grid {
    row-gap: 0.75rem;
  }

  header .inner {
    padding: 0.9rem 1.1rem 1.05rem;
    gap: 0.75rem;
  }

  .brand-row {
    flex-wrap: wrap;
    row-gap: 0.75rem;
  }

  .app-brand h1 {
    font-size: 1.5rem;
  }

  .toolbar-surface {
    padding: 0.5rem;
  }

  .toolbar.formatting {
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    gap: 0.4rem;
    scroll-snap-type: x proximity;
    padding-bottom: 0.25rem;
    margin: 0 -0.25rem;
    padding-left: 0.25rem;
    padding-right: 0.25rem;
  }

  .toolbar.formatting > * {
    flex: 0 0 auto;
    scroll-snap-align: start;
  }

  .toolbar.formatting::-webkit-scrollbar {
    display: none;
  }

  .mobile-toolbar-toggle {
    display: inline-flex;
  }

  #formatting-toolbar[hidden] {
    display: none;
  }

  .toolbar button,
  .toolbar .secondary-button {
    padding: 0.45rem 0.6rem;
    font-size: 0.8rem;
  }

  .toolbar .icon-button {
    width: 2.25rem;
    height: 2.25rem;
  }

  .toolbar .icon-button > :is(svg, i) {
    width: 1.1rem;
    height: 1.1rem;
  }

  .toolbar .icon-button > i {
    font-size: 1rem;
  }

  .toolbar .mode-toggle {
    padding: 0.45rem 0.7rem;
    gap: 0.3rem;
  }

  .toolbar .mode-toggle .button-label {
    font-size: 0.78rem;
  }

  .editor-container {
    margin: 1rem auto 2.25rem;
    padding: 0 1rem 2.25rem;
  }

  .file-title {
    margin-bottom: 0.6rem;
  }

  .file-title input {
    padding: 0.65rem 0.85rem;
    font-size: 1rem;
  }

  .editor {
    padding: 1rem;
    min-height: 55vh;
    font-size: 0.95rem;
    line-height: 1.55;
    overflow-y: visible;
  }

  .status-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .status-bar span {
    margin-right: 0;
  }

  .status-bar > div {
    width: 100%;
    justify-content: space-between;
    gap: 0.75rem;
  }
}

.toolbar-surface {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 0.6rem;
  box-shadow: 0 14px 32px var(--surface-shadow);
}

.toolbar button,
.toolbar .secondary-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--button-bg);
  border: 1px solid transparent;
  color: var(--text);
  padding: 0.5rem 0.75rem;
  border-radius: 0.65rem;
  cursor: pointer;
  font-size: 0.85rem;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.toolbar .icon-button {
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
}

.toolbar .icon-button > :is(svg, i) {
  width: 1.35rem;
  height: 1.35rem;
}

.toolbar .icon-button > i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  line-height: 1;
}

.toolbar .icon-button.heading-button > .heading-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.35rem;
  height: 1.35rem;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
}

.toolbar .mode-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.85rem;
}

.toolbar .mode-toggle > :is(svg, i) {
  width: 1.2rem;
  height: 1.2rem;
}

.toolbar .mode-toggle > i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
  line-height: 1;
}

.toolbar .mode-toggle .button-label {
  font-weight: 600;
  letter-spacing: 0.03em;
}

.button-label {
  font-size: 0.85rem;
}

.toolbar button:hover,
.toolbar .secondary-button:hover {
  background: var(--button-bg-hover);
  border-color: var(--button-border-hover);
  transform: translateY(-1px);
}

.toolbar button:active,
.toolbar .secondary-button:active {
  transform: translateY(0);
}

.toolbar button.primary {
  background: var(--accent);
  color: #0f172a;
  font-weight: 600;
}

.toolbar button.primary:hover {
  background: var(--accent-dark);
}

.toolbar button:disabled,
.toolbar .secondary-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

main {
  flex: 1;
  width: 100%;
}

.editor-container {
  max-width: 1200px;
  margin: 1.5rem auto;
  padding: 0 1.5rem 3rem;
}

body.touch-editor header .inner {
  padding: 0.75rem 1rem 0.9rem;
  gap: 0.65rem;
}

body.touch-editor .brand-row {
  gap: 0.6rem;
}

body.touch-editor .app-brand {
  gap: 0.6rem;
}

body.touch-editor .brand-mark {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.75rem;
}

body.touch-editor .app-brand h1 {
  font-size: 1.45rem;
}

body.touch-editor .toolbar-surface {
  padding: 0.45rem;
  box-shadow: 0 10px 24px var(--surface-shadow);
}

body.touch-editor .toolbar-row {
  gap: 0.65rem;
}

body.touch-editor .editor-container {
  margin: 0.9rem auto 2.25rem;
  padding: 0 1.1rem 2.5rem;
}

body.touch-editor .editor {
  padding: 0.9rem 1rem;
  min-height: 50vh;
  font-size: 0.98rem;
  line-height: 1.55;
}

body.touch-editor .status-bar {
  gap: 0.6rem;
}

body.touch-editor .status-bar > div {
  gap: 0.6rem;
}

.editor-layout {
  display: block;
}

.editor-content {
  min-width: 0;
}

.file-title {
  margin-bottom: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.file-title input {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 0.85rem;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.file-title input::placeholder {
  color: var(--text-muted);
}

.file-title input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.18);
}

.toc {
  display: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1rem;
  box-shadow: 0 10px 30px var(--surface-shadow);
}

.toc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.toc-header h2 {
  margin: 0;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.toc-list li {
  margin: 0;
}

.toc-list a {
  display: block;
  padding: 0.35rem 0.5rem;
  border-radius: 0.5rem;
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  line-height: 1.4;
  transition: background 0.2s ease, color 0.2s ease;
}

.toc-list a:hover,
.toc-list a:focus-visible {
  background: var(--button-bg-hover);
  color: var(--accent);
  outline: none;
}

.toc-level-2 {
  padding-left: 0.75rem;
}

.toc-level-3 {
  padding-left: 1.2rem;
}

.toc-level-4 {
  padding-left: 1.65rem;
}

.toc-level-5 {
  padding-left: 2.1rem;
}

.toc-level-6 {
  padding-left: 2.55rem;
}

.toc-empty {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.editor-wrapper {
  display: block;
}

.editor-surface {
  position: relative;
  min-width: 0;
}

.editor {
  width: 100%;
  min-height: 60vh;
  padding: 1.25rem 1.5rem;
  border-radius: 1.1rem;
  background: var(--editor-bg);
  color: var(--text);
  border: 1px solid var(--editor-border);
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.6;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05), var(--editor-shadow);
  backdrop-filter: blur(4px);
  outline: none;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-word;
  caret-color: var(--accent);
  cursor: text;
  position: relative;
  z-index: 0;
}

.editor.html-mode {
  font-family: var(--font-mono);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
  overflow-x: hidden;
  tab-size: 2;
}

.editor:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.editor-line {
  margin: 0;
  padding: 0;
  font-size: 1rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  scroll-margin-top: var(--header-offset);
}

.editor-line.is-empty {
  min-height: 1rem;
}

.editor-line-break {
  display: block;
  height: 0.35rem;
  line-height: 0;
  font-size: 0;
  pointer-events: none;
  user-select: none;
}

.editor-line.heading-1 {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.3;
}

.editor-line.heading-2 {
  font-size: 1.45rem;
  font-weight: 650;
  line-height: 1.35;
}

.editor-line.heading-3 {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.4;
}

.editor-line.heading-4 {
  font-size: 1.15rem;
  font-weight: 600;
}

.editor-line.heading-5 {
  font-size: 1.05rem;
  font-weight: 600;
}

.editor-line.heading-6 {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.editor .md-strong {
  font-weight: 700;
}

.editor .md-em {
  font-style: italic;
}

.editor .md-strike {
  text-decoration: line-through;
}

.status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.5rem;
  padding: 0.85rem 1.25rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  box-shadow: 0 14px 32px var(--surface-shadow);
  backdrop-filter: blur(6px);
}

.status-bar span {
  margin-right: 1.25rem;
}

.status-bar > div {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.file-indicator {
  font-weight: 600;
}

@media (min-width: 1024px) {
  .file-menu-dropdown .drive-menu-header {
    margin-bottom: 0.5rem;
  }

  .file-menu-dropdown .drive-menu-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(8.75rem, 1fr));
    column-gap: 1rem;
    row-gap: 1.25rem;
    align-items: stretch;
  }

  .file-menu-dropdown .drive-menu-grid .drive-button {
    width: 100%;
  }

  .editor-layout {
    display: grid;
    grid-template-columns: minmax(220px, 260px) minmax(0, 1fr);
    gap: 1.75rem;
    align-items: start;
  }

  .toc {
    display: block;
    position: sticky;
    top: calc(var(--header-offset) + 1.5rem);
    max-height: calc(100vh - var(--header-offset) - 2.5rem);
    overflow: auto;
    align-self: start;
  }
}

#status-message {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-subtle);
  min-height: 1.2rem;
}

#status-message.status-success {
  color: #86efac;
}

#drive-dialog {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  display: none;
  place-items: center;
  padding: 1.5rem;
  z-index: 100;
}

#drive-dialog.active {
  display: grid;
}

#drive-dialog .dialog-content {
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.5rem;
  width: min(500px, 100%);
  box-shadow: 0 20px 40px var(--strong-shadow);
}

.dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.dialog-header h2 {
  margin: 0;
  font-size: 1.1rem;
}

#drive-dialog-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  border: 1px solid transparent;
  background: var(--button-bg);
  color: var(--text);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

#drive-dialog-close:hover {
  background: var(--button-bg-hover);
  border-color: var(--button-border-hover);
  transform: translateY(-1px);
}

#drive-dialog-close:active {
  transform: translateY(0);
}

#drive-dialog-close:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.dialog-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.cloud-config-card {
  position: relative;
  display: flex;
  gap: 1rem;
  padding: 1.15rem 1.3rem;
  border-radius: 1rem;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.92), rgba(30, 64, 175, 0.65));
  box-shadow: 0 18px 36px var(--surface-shadow);
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.cloud-config-card::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  background: radial-gradient(circle at 0% 0%, rgba(56, 189, 248, 0.35), transparent 60%);
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.cloud-config-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 44px var(--strong-shadow);
  border-color: rgba(56, 189, 248, 0.55);
}

.cloud-config-card:hover::after {
  opacity: 1;
}

.cloud-config-card .cloud-card-icon {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 0.9rem;
  background: rgba(56, 189, 248, 0.18);
  color: var(--accent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 12px 24px rgba(15, 23, 42, 0.45);
  font-size: 1.3rem;
}

.cloud-config-card .cloud-card-content {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.cloud-card-eyebrow {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(226, 232, 240, 0.75);
}

.cloud-card-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
}

.cloud-card-message {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-subtle);
}

.cloud-card-links {
  margin-top: 0.25rem;
}

.cloud-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.65rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.45);
  background: rgba(15, 23, 42, 0.35);
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.cloud-card-link:hover,
.cloud-card-link:focus-visible {
  background: rgba(56, 189, 248, 0.2);
  border-color: rgba(56, 189, 248, 0.6);
  color: #f8fafc;
}

.cloud-card-link:focus-visible {
  outline: 2px solid rgba(56, 189, 248, 0.5);
  outline-offset: 2px;
}

.cloud-config-card.configured {
  border-color: rgba(134, 239, 172, 0.6);
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.92), rgba(21, 128, 61, 0.6));
}

.cloud-config-card.configured::after {
  background: radial-gradient(circle at 0% 0%, rgba(134, 239, 172, 0.4), transparent 55%);
}

.cloud-config-card.configured .cloud-card-icon {
  background: rgba(134, 239, 172, 0.2);
  color: #86efac;
}

.cloud-config-card.configured .cloud-card-title {
  color: #bbf7d0;
}

.cloud-config-card.configured .cloud-card-message {
  color: rgba(226, 232, 240, 0.85);
}

.cloud-config-card.configured .cloud-card-link {
  border-color: rgba(134, 239, 172, 0.6);
}

.cloud-config-card.configured .cloud-card-link:hover,
.cloud-config-card.configured .cloud-card-link:focus-visible {
  background: rgba(134, 239, 172, 0.25);
  border-color: rgba(134, 239, 172, 0.8);
  color: #0f172a;
}

.dialog-body label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.85rem;
}

.dialog-body input {
  padding: 0.5rem 0.65rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
}

.dialog-body input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.dialog-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

.dialog-footer button {
  padding: 0.45rem 0.8rem;
  border-radius: 0.5rem;
  border: 1px solid transparent;
  background: var(--button-bg);
  color: var(--text);
  cursor: pointer;
}

.dialog-footer button.primary {
  background: var(--accent);
  color: #0f172a;
  font-weight: 600;
}

.drive-files {
  max-height: 200px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  background: var(--surface);
}

.drive-files table {
  width: 100%;
  border-collapse: collapse;
}

.drive-files th,
.drive-files td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--table-border);
  text-align: left;
}

.drive-files tr:hover {
  background: var(--row-hover);
  cursor: pointer;
}

.drive-controls {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.drive-controls .toolbar {
  gap: 0.5rem;
}

.drive-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.85rem;
  color: var(--breadcrumb-text);
}

.drive-breadcrumbs button {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  padding: 0;
  font: inherit;
}

.drive-breadcrumbs button:hover {
  text-decoration: underline;
}

.drive-breadcrumbs button:disabled {
  color: var(--breadcrumb-disabled);
  cursor: default;
  text-decoration: none;
}

.drive-breadcrumbs .separator {
  color: var(--breadcrumb-separator);
  margin: 0 0.15rem;
}

.drive-files .entry-name {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.drive-files .entry-icon {
  font-size: 0.95rem;
}

.drive-files tr.folder-row td {
  font-weight: 600;
}

.drive-files tr.selected {
  background: var(--row-selected);
}

.drive-save-controls {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

/* Footer */

.site-footer {
  margin-top: auto;
  background: var(--surface-strong);
  border-top: 1px solid var(--border);
  box-shadow: 0 -8px 24px var(--shadow);
}

.site-footer .inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  text-align: center;
}

.site-footer p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.footer-nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-nav a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
  text-decoration: underline;
}

@media (min-width: 768px) {
  .site-footer .inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* Legal pages */

body.legal-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header.legal-header {
  position: static;
  top: auto;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 12px var(--shadow);
}

header.legal-header .inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.1rem 1.75rem;
}

.legal-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.legal-header-bar .brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: 1.2rem;
  letter-spacing: 0.02em;
}

.legal-header-bar .brand-link:hover,
.legal-header-bar .brand-link:focus-visible {
  color: var(--accent);
}

.legal-header-bar .brand-link .brand-name {
  display: inline-flex;
  flex-direction: column;
  gap: 0.2rem;
}

.legal-header-bar .brand-link .brand-name span {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.legal-header-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.legal-header-links a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 0.25rem 0;
}

.legal-header-links a:hover,
.legal-header-links a:focus-visible {
  text-decoration: underline;
}

.legal-header-links a[aria-current='page'] {
  color: #ffffff;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
}

.legal-main {
  flex: 1;
  width: 100%;
  padding: 2.5rem 1.25rem 4rem;
  display: flex;
  justify-content: center;
}

.legal-content {
  width: min(100%, 900px);
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  padding: 2.5rem;
  box-shadow: 0 22px 48px var(--surface-shadow);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.legal-content > header {
  position: static;
  top: auto;
  z-index: auto;
  backdrop-filter: none;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.legal-content h1 {
  margin: 0 0 1rem;
  padding-bottom: 0.35rem;
  font-size: 2.15rem;
  letter-spacing: 0.02em;
}

.legal-content h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.4rem;
}

.legal-content p {
  margin: 0;
  color: var(--text-subtle);
  line-height: 1.7;
}

.legal-content section {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.legal-content ul,
.legal-content ol {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.5rem;
  color: var(--text-subtle);
}

.legal-content li {
  margin: 0;
}

.legal-content strong {
  color: var(--accent);
}

.legal-content .legal-intro {
  padding: 1.25rem;
  border-radius: 0.9rem;
  background: var(--legal-intro-bg);
}

.legal-meta {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.legal-callout {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  color: var(--text-subtle);
}

.legal-contact {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.legal-contact a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.legal-contact a:hover,
.legal-contact a:focus-visible {
  text-decoration: underline;
}

@media (max-width: 640px) {
  header.legal-header .inner {
    padding: 1rem 1.25rem;
  }

  .legal-content {
    padding: 1.75rem;
  }

  .legal-content h1 {
    font-size: 1.85rem;
  }

  .legal-content h2 {
    font-size: 1.25rem;
  }
}

.drive-save-controls input {
  flex: 1;
}

.drive-save-controls button {
  white-space: nowrap;
  border-radius: 0.5rem;
  border: 1px solid transparent;
  padding: 0.45rem 0.75rem;
  background: var(--button-bg);
  color: var(--text);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.drive-save-controls button:hover {
  background: var(--button-bg-hover);
  border-color: var(--button-border-hover);
  transform: translateY(-1px);
}

.drive-save-controls button:active {
  transform: translateY(0);
}

.drive-save-controls button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.drive-save-controls button.primary {
  background: var(--accent);
  color: #0f172a;
  font-weight: 600;
}

.drive-save-controls button.primary:hover {
  background: var(--accent-dark);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.alert {
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  color: var(--danger-text);
  font-size: 0.85rem;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --bg-gradient-start: #f8fafc;
    --bg-gradient-end: #e2e8f0;
    --surface: #ffffff;
    --surface-strong: #ffffff;
    --header-bg: rgba(248, 250, 252, 0.85);
    --input-bg: rgba(255, 255, 255, 0.95);
    --text: #0f172a;
    --text-muted: rgba(15, 23, 42, 0.6);
    --text-subtle: rgba(15, 23, 42, 0.7);
    --border: rgba(15, 23, 42, 0.12);
    --button-bg: #f8fafc;
    --button-bg-hover: #e2e8f0;
    --button-border-hover: rgba(148, 163, 184, 0.35);
    --overlay: rgba(15, 23, 42, 0.3);
    --shadow: rgba(15, 23, 42, 0.08);
    --surface-shadow: rgba(15, 23, 42, 0.1);
    --strong-shadow: rgba(15, 23, 42, 0.12);
    --drive-menu-label-bg: rgba(148, 163, 184, 0.18);
    --drive-menu-label-border: rgba(148, 163, 184, 0.35);
    --drive-menu-button-bg: rgba(148, 163, 184, 0.12);
    --drive-menu-button-border: rgba(148, 163, 184, 0.28);
    --drive-menu-icon-bg-disabled: rgba(148, 163, 184, 0.2);
    --drive-menu-button-disabled-bg: rgba(148, 163, 184, 0.16);
    --drive-menu-button-disabled-border: rgba(148, 163, 184, 0.24);
    --drive-menu-surface: rgba(255, 255, 255, 0.95);
    --drive-menu-border: rgba(148, 163, 184, 0.22);
    --drive-menu-glow: radial-gradient(circle at top, rgba(148, 163, 184, 0.12), transparent 55%);
    --drive-menu-divider: linear-gradient(180deg, transparent, rgba(148, 163, 184, 0.28), transparent);
    --drive-menu-icon-bg: rgba(226, 232, 240, 0.85);
    --drive-menu-icon-shadow: rgba(15, 23, 42, 0.16);
    --drive-menu-icon-shadow-hover: rgba(15, 23, 42, 0.22);
    --editor-bg: #ffffff;
    --editor-border: rgba(15, 23, 42, 0.12);
    --editor-shadow: 0 18px 44px rgba(15, 23, 42, 0.1);
    --table-border: rgba(15, 23, 42, 0.08);
    --row-hover: rgba(56, 189, 248, 0.12);
    --row-selected: rgba(56, 189, 248, 0.18);
    --breadcrumb-text: rgba(15, 23, 42, 0.65);
    --breadcrumb-separator: rgba(15, 23, 42, 0.35);
    --breadcrumb-disabled: rgba(15, 23, 42, 0.4);
    --danger-bg: rgba(248, 113, 113, 0.15);
    --danger-border: rgba(248, 113, 113, 0.3);
    --danger-text: #b91c1c;
    --legal-intro-bg: rgba(15, 23, 42, 0.05);
  }

}

:root[data-theme='dark'] {
  color-scheme: dark;
}

:root[data-theme='light'] {
  color-scheme: light;
  --bg-gradient-start: #f8fafc;
  --bg-gradient-end: #e2e8f0;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --header-bg: rgba(248, 250, 252, 0.85);
  --input-bg: rgba(255, 255, 255, 0.95);
  --text: #0f172a;
  --text-muted: rgba(15, 23, 42, 0.6);
  --text-subtle: rgba(15, 23, 42, 0.7);
  --border: rgba(15, 23, 42, 0.12);
  --button-bg: #f8fafc;
  --button-bg-hover: #e2e8f0;
  --button-border-hover: rgba(148, 163, 184, 0.35);
  --overlay: rgba(15, 23, 42, 0.3);
  --shadow: rgba(15, 23, 42, 0.08);
  --surface-shadow: rgba(15, 23, 42, 0.1);
  --strong-shadow: rgba(15, 23, 42, 0.12);
  --drive-menu-label-bg: rgba(148, 163, 184, 0.18);
  --drive-menu-label-border: rgba(148, 163, 184, 0.35);
  --drive-menu-button-bg: rgba(148, 163, 184, 0.12);
  --drive-menu-button-border: rgba(148, 163, 184, 0.28);
  --drive-menu-icon-bg-disabled: rgba(148, 163, 184, 0.2);
  --drive-menu-button-disabled-bg: rgba(148, 163, 184, 0.16);
  --drive-menu-button-disabled-border: rgba(148, 163, 184, 0.24);
  --drive-menu-surface: rgba(255, 255, 255, 0.95);
  --drive-menu-border: rgba(148, 163, 184, 0.22);
  --drive-menu-glow: radial-gradient(circle at top, rgba(148, 163, 184, 0.12), transparent 55%);
  --drive-menu-divider: linear-gradient(180deg, transparent, rgba(148, 163, 184, 0.28), transparent);
  --drive-menu-icon-bg: rgba(226, 232, 240, 0.85);
  --drive-menu-icon-shadow: rgba(15, 23, 42, 0.16);
  --drive-menu-icon-shadow-hover: rgba(15, 23, 42, 0.22);
  --editor-bg: #ffffff;
  --editor-border: rgba(15, 23, 42, 0.12);
  --editor-shadow: 0 18px 44px rgba(15, 23, 42, 0.1);
  --table-border: rgba(15, 23, 42, 0.08);
  --row-hover: rgba(56, 189, 248, 0.12);
  --row-selected: rgba(56, 189, 248, 0.18);
  --breadcrumb-text: rgba(15, 23, 42, 0.65);
  --breadcrumb-separator: rgba(15, 23, 42, 0.35);
  --breadcrumb-disabled: rgba(15, 23, 42, 0.4);
  --danger-bg: rgba(248, 113, 113, 0.15);
  --danger-border: rgba(248, 113, 113, 0.3);
  --danger-text: #b91c1c;
  --legal-intro-bg: rgba(15, 23, 42, 0.05);
}

@media (max-width: 768px) {
  header .inner {
    flex-direction: column;
    align-items: stretch;
  }

  .brand-row {
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
  }

  .theme-toggle {
    align-self: center;
  }

  h1 {
    text-align: center;
  }

  .toolbar {
    justify-content: center;
  }

  .toolbar.drive-actions {
    justify-content: flex-start;
  }

  .status-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}