/*! tailwindcss v4.1.3 | MIT License | https://tailwindcss.com */
@layer properties;
@layer theme, base, components, utilities;
@layer theme {
  :root, :host {
    --font-sans: ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol',
    'Noto Color Emoji';
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New',
    monospace;
    --container-sm: 24rem;
    --container-lg: 32rem;
    --container-xl: 36rem;
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --tracking-tight: -0.025em;
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --default-transition-duration: 150ms;
    --default-transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    --default-font-family: var(--font-sans);
    --default-mono-font-family: var(--font-mono);
    --color-bg: #f6f4ef;
    --color-surface: #ffffff;
    --color-border: #e0dbd3;
    --color-text-main: #1a1a1a;
    --color-text-muted: #5c5c5c;
    --color-primary: #c45c26;
    --color-primary-hover: #9a4520;
    --color-primary-fg: #ffffff;
    --color-success-bg: #e8f5e9;
    --color-error-bg: #fdecea;
    --color-info-bg: #e8f0fe;
    --color-warning-bg: #fff8e1;
    --color-alert-tint: #fdecea;
  }
}
@layer base {
  *, ::after, ::before, ::backdrop, ::file-selector-button {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    border: 0 solid;
  }
  html, :host {
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
    tab-size: 4;
    font-family: var(--default-font-family, ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji');
    font-feature-settings: var(--default-font-feature-settings, normal);
    font-variation-settings: var(--default-font-variation-settings, normal);
    -webkit-tap-highlight-color: transparent;
  }
  hr {
    height: 0;
    color: inherit;
    border-top-width: 1px;
  }
  abbr:where([title]) {
    -webkit-text-decoration: underline dotted;
    text-decoration: underline dotted;
  }
  h1, h2, h3, h4, h5, h6 {
    font-size: inherit;
    font-weight: inherit;
  }
  a {
    color: inherit;
    -webkit-text-decoration: inherit;
    text-decoration: inherit;
  }
  b, strong {
    font-weight: bolder;
  }
  code, kbd, samp, pre {
    font-family: var(--default-mono-font-family, ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace);
    font-feature-settings: var(--default-mono-font-feature-settings, normal);
    font-variation-settings: var(--default-mono-font-variation-settings, normal);
    font-size: 1em;
  }
  small {
    font-size: 80%;
  }
  sub, sup {
    font-size: 75%;
    line-height: 0;
    position: relative;
    vertical-align: baseline;
  }
  sub {
    bottom: -0.25em;
  }
  sup {
    top: -0.5em;
  }
  table {
    text-indent: 0;
    border-color: inherit;
    border-collapse: collapse;
  }
  :-moz-focusring {
    outline: auto;
  }
  progress {
    vertical-align: baseline;
  }
  summary {
    display: list-item;
  }
  ol, ul, menu {
    list-style: none;
  }
  img, svg, video, canvas, audio, iframe, embed, object {
    display: block;
    vertical-align: middle;
  }
  img, video {
    max-width: 100%;
    height: auto;
  }
  button, input, select, optgroup, textarea, ::file-selector-button {
    font: inherit;
    font-feature-settings: inherit;
    font-variation-settings: inherit;
    letter-spacing: inherit;
    color: inherit;
    border-radius: 0;
    background-color: transparent;
    opacity: 1;
  }
  :where(select:is([multiple], [size])) optgroup {
    font-weight: bolder;
  }
  :where(select:is([multiple], [size])) optgroup option {
    padding-inline-start: 20px;
  }
  ::file-selector-button {
    margin-inline-end: 4px;
  }
  ::placeholder {
    opacity: 1;
  }
  @supports (not (-webkit-appearance: -apple-pay-button))  or (contain-intrinsic-size: 1px) {
    ::placeholder {
      color: currentcolor;
      @supports (color: color-mix(in lab, red, red)) {
        color: color-mix(in oklab, currentcolor 50%, transparent);
      }
    }
  }
  textarea {
    resize: vertical;
  }
  ::-webkit-search-decoration {
    -webkit-appearance: none;
  }
  ::-webkit-date-and-time-value {
    min-height: 1lh;
    text-align: inherit;
  }
  ::-webkit-datetime-edit {
    display: inline-flex;
  }
  ::-webkit-datetime-edit-fields-wrapper {
    padding: 0;
  }
  ::-webkit-datetime-edit, ::-webkit-datetime-edit-year-field, ::-webkit-datetime-edit-month-field, ::-webkit-datetime-edit-day-field, ::-webkit-datetime-edit-hour-field, ::-webkit-datetime-edit-minute-field, ::-webkit-datetime-edit-second-field, ::-webkit-datetime-edit-millisecond-field, ::-webkit-datetime-edit-meridiem-field {
    padding-block: 0;
  }
  :-moz-ui-invalid {
    box-shadow: none;
  }
  button, input:where([type='button'], [type='reset'], [type='submit']), ::file-selector-button {
    appearance: button;
  }
  ::-webkit-inner-spin-button, ::-webkit-outer-spin-button {
    height: auto;
  }
  [hidden]:where(:not([hidden='until-found'])) {
    display: none !important;
  }
}
@layer utilities {
  .invisible {
    visibility: hidden;
  }
  .visible {
    visibility: visible;
  }
  .fixed {
    position: fixed;
  }
  .relative {
    position: relative;
  }
  .static {
    position: static;
  }
  .sticky {
    position: sticky;
  }
  .container {
    width: 100%;
    @media (width >= 640px) {
      max-width: 640px;
    }
    @media (width >= 48rem) {
      max-width: 48rem;
    }
    @media (width >= 64rem) {
      max-width: 64rem;
    }
    @media (width >= 80rem) {
      max-width: 80rem;
    }
    @media (width >= 96rem) {
      max-width: 96rem;
    }
  }
  .block {
    display: block;
  }
  .contents {
    display: contents;
  }
  .grid {
    display: grid;
  }
  .hidden {
    display: none;
  }
  .inline {
    display: inline;
  }
  .inline-flex {
    display: inline-flex;
  }
  .table {
    display: table;
  }
  .grow {
    flex-grow: 1;
  }
  .transform {
    transform: var(--tw-rotate-x) var(--tw-rotate-y) var(--tw-rotate-z) var(--tw-skew-x) var(--tw-skew-y);
  }
  .resize {
    resize: both;
  }
  .border {
    border-style: var(--tw-border-style);
    border-width: 1px;
  }
  .uppercase {
    text-transform: uppercase;
  }
  .outline {
    outline-style: var(--tw-outline-style);
    outline-width: 1px;
  }
  .blur {
    --tw-blur: blur(8px);
    filter: var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,);
  }
  .filter {
    filter: var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,);
  }
  .\[file\:1\] {
    file: 1;
  }
  .\[file\:2\] {
    file: 2;
  }
  .\[file\:3\] {
    file: 3;
  }
  .\[file\:6\] {
    file: 6;
  }
  .\[file\:13\] {
    file: 13;
  }
  .\[file\:15\] {
    file: 15;
  }
  .\[web\:23\] {
    web: 23;
  }
  .\[web\:24\] {
    web: 24;
  }
  .\[web\:29\] {
    web: 29;
  }
  .\[web\:33\] {
    web: 33;
  }
  .\[web\:34\] {
    web: 34;
  }
  .\[web\:35\] {
    web: 35;
  }
}
@layer base {
  :root {
    --bg: var(--color-bg);
    --card: var(--color-surface);
    --border: var(--color-border);
    --text: var(--color-text-main);
    --muted: var(--color-text-muted);
    --primary: var(--color-primary);
    --primary-dark: var(--color-primary-hover);
    --success-bg: var(--color-success-bg);
    --error-bg: var(--color-error-bg);
    --info-bg: var(--color-info-bg);
  }
  * {
    box-sizing: border-box;
  }
  body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--color-bg);
    color: var(--color-text-main);
    line-height: 1.5;
    font-size: 16px;
  }
  input, select, textarea {
    font-size: max(16px, 1em);
  }
  h1, h2, h3 {
    margin-top: 0;
  }
}
@layer components {
  * {
    box-sizing: border-box;
  }
  body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--color-bg);
    color: var(--color-text-main);
    line-height: 1.5;
    font-size: 16px;
  }
  input, select, textarea {
    font-size: max(16px, 1em);
  }
  .container {
    max-width: 900px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
  }
  .container-wide {
    max-width: 1100px;
  }
  .site-header {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    margin-bottom: 1rem;
  }
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
  }
  .logo {
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    font-size: 1.25rem;
  }
  .logo-block {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    text-decoration: none;
  }
  .logo-title {
    font-weight: 700;
    color: var(--primary);
    font-size: 1.25rem;
  }
  .logo-subtitle {
    font-weight: 500;
    color: var(--muted);
    font-size: 0.75rem;
  }
  .site-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
  }
  .site-nav a {
    color: var(--text);
    text-decoration: none;
    padding: 0.35rem 0;
  }
  .site-nav a:hover {
    color: var(--primary);
  }
  .nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.5rem;
    cursor: pointer;
  }
  .nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text);
  }
  .user-menu {
    position: relative;
  }
  .user-menu-trigger {
    display: inline-flex;
    align-items: center;
    background: none;
    border: none;
    font: inherit;
    cursor: pointer;
    color: var(--muted);
    font-size: 0.9rem;
    padding: 0.35rem 0;
  }
  .user-menu-trigger::after {
    content: " ▾";
    font-size: 0.75rem;
  }
  .user-menu-panel {
    position: absolute;
    right: 0;
    top: calc(100% + 0.35rem);
    min-width: 10rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    padding: 0.35rem 0;
    z-index: 100;
  }
  .user-menu-panel[hidden] {
    display: none;
  }
  .user-menu-list {
    list-style: none;
    margin: 0;
    padding: 0;
  }
  .user-menu-list li {
    margin: 0;
    padding: 0;
  }
  .user-menu-list form {
    display: block;
    width: 100%;
    margin: 0;
    padding: 0;
  }
  .user-menu-item {
    display: block;
    width: 100%;
    box-sizing: border-box;
    margin: 0;
    padding: 0.5rem 1rem;
    background: none;
    border: none;
    text-align: left;
    font: inherit;
    line-height: inherit;
    color: var(--text);
    cursor: pointer;
    appearance: none;
  }
  .user-menu-item:hover {
    background: var(--bg);
    color: var(--primary);
  }
  .settings-list {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.5rem 1.5rem;
    margin: 0 0 1.5rem;
  }
  .settings-list dt {
    font-weight: 600;
    color: var(--muted);
  }
  .settings-list dd {
    margin: 0;
  }
  .card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1rem;
  }
  .login-card {
    max-width: 480px;
    margin: 2rem auto;
  }
  h1, h2, h3 {
    margin-top: 0;
  }
  .hint, .muted {
    color: var(--muted);
    font-size: 0.95rem;
  }
  .optional {
    font-weight: normal;
    color: var(--muted);
    font-size: 0.85rem;
  }
  .form label {
    display: block;
    margin: 1rem 0 0.35rem;
    font-weight: 600;
  }
  .form input[type="text"], .form input[type="email"], .form input[type="password"], .form input[type="file"], .form input[type="datetime-local"], .form select, .form textarea {
    width: 100%;
    max-width: 100%;
    padding: 0.65rem 0.75rem;
    font-size: 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
  }
  .form textarea {
    min-height: 4.5rem;
    line-height: 1.5;
    resize: vertical;
    field-sizing: content;
  }
  .invite-code-input {
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: ui-monospace, monospace;
  }
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    margin-top: 1.25rem;
    padding: 0.65rem 1.25rem;
    font: inherit;
    font-size: 1rem;
    line-height: 1.2;
    border: 1px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
  }
  .btn-auto {
    width: auto;
  }
  .btn-primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
  }
  .btn-primary:hover, .btn--primary:hover, a.btn-primary:hover, a.btn--primary:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: #fff;
    -webkit-text-fill-color: #fff;
  }
  .btn--primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
  }
  .login-card .btn-primary {
    width: 100%;
  }
  .btn-secondary {
    background: var(--color-surface);
    color: var(--color-primary);
    border-color: var(--color-primary);
    width: auto;
  }
  .btn-secondary:hover {
    background: var(--color-bg);
  }
  .btn-ghost {
    background: transparent;
    color: var(--color-text-muted);
    border-color: var(--color-border);
  }
  .btn-ghost:hover {
    background: var(--color-bg);
    color: var(--color-text-main);
  }
  .btn-ghost.btn-destructive {
    color: #b42318;
  }
  .btn-ghost.btn-destructive:hover {
    color: #912018;
    background: var(--color-error-bg);
  }
  .app-empty {
    text-align: center;
    padding: 2rem 1rem;
    margin-top: 1rem;
    border: 1px dashed var(--border);
    border-radius: 10px;
    background: var(--bg);
  }
  .app-empty .app-action-group {
    justify-content: center;
    margin-top: 1rem;
  }
  .app-empty .btn {
    min-height: 44px;
  }
  .app-action-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: stretch;
  }
  .app-action-group .btn, .app-action-group .inline-form {
    margin-top: 0;
  }
  .app-action-group .btn {
    min-height: 44px;
  }
  .app-back {
    margin: 0 0 0.5rem;
  }
  .app-back .btn {
    margin-top: 0;
    padding-left: 0;
  }
  .auth-link {
    margin-top: 1.25rem;
    text-align: center;
    color: var(--muted);
  }
  .auth-link a {
    color: var(--primary);
  }
  .flash-messages {
    list-style: none;
    padding: 0;
    margin: 0 0 1rem;
  }
  .flash {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    color: var(--color-text-main);
  }
  .flash-success, .flash.info {
    background: var(--color-success-bg);
  }
  .flash-error, .flash.error {
    background: var(--color-error-bg);
  }
  .flash-warning {
    background: var(--color-warning-bg);
  }
  .form-errors, .field-error {
    color: #b42318;
    font-size: 0.9rem;
  }
  .form-errors {
    list-style: none;
    padding: 0.75rem;
    background: var(--error-bg);
    border-radius: 8px;
  }
  .field-error {
    margin: 0.25rem 0 0;
  }
  .info-box {
    background: var(--info-bg);
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
  }
  .help-block {
    background: var(--info-bg);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    margin: 0.75rem 0 1rem;
    font-size: 0.95rem;
    color: var(--muted);
  }
  .help-block p {
    margin: 0;
  }
  .help-block ol {
    margin: 0.35rem 0 0;
    padding-left: 1.25rem;
  }
  .help-block li + li {
    margin-top: 0.25rem;
  }
  .help-block strong {
    color: var(--text);
  }
  .confirm-backdrop {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1000;
    padding: 1rem;
  }
  .confirm-backdrop.is-visible {
    display: flex;
  }
  .confirm-modal {
    width: 100%;
    max-width: 90%;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: 1.5rem;
    border-radius: 8px;
    color: var(--color-text-main);
  }
  .confirm-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 700;
  }
  .confirm-body {
    margin: 0.75rem 0 0;
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.4;
  }
  .confirm-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.75rem;
  }
  .confirm-actions .btn {
    width: 100%;
    margin-top: 0;
  }
  .confirm-modal--danger {
    border-color: #b42318;
  }
  .confirm-modal--danger .confirm-title {
    color: #b42318;
  }
  .invite-code {
    font-size: 1.1rem;
    letter-spacing: 0.08em;
    background: var(--card);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
  }
  .link-list {
    padding-left: 1.25rem;
  }
  .app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
  }
  .app-card {
    display: block;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    text-decoration: none;
    color: inherit;
    background: var(--bg);
    min-height: 44px;
  }
  .app-card:hover {
    border-color: var(--primary);
  }
  .app-card h3 {
    margin: 0 0 0.35rem;
    color: var(--primary);
  }
  .app-card p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--muted);
  }
  .coming-soon-badge {
    display: inline-block;
    background: var(--info-bg);
    color: var(--primary-dark);
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
  }
  .lexicon-word-type {
    color: var(--muted);
    font-weight: 500;
    font-size: 0.95rem;
    margin-left: 0.35rem;
  }
  .filter-form {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: flex-end;
    margin: 1rem 0;
  }
  .filter-form label {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 0.25rem;
  }
  .filter-form input, .filter-form select {
    min-height: 44px;
    font-size: 16px;
  }
  .action-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
    margin: 0.75rem 0 1rem;
  }
  .lexicon-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-top: 1rem;
  }
  .lexicon-word-table {
    width: 100%;
    min-width: 480px;
    border-collapse: collapse;
  }
  .lexicon-word-table thead th {
    position: sticky;
    top: 0;
    z-index: 1;
    background: var(--card);
    border-bottom: 2px solid var(--border);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--muted);
    padding: 0.6rem 0.5rem;
    text-align: left;
  }
  .lexicon-word-table tbody td {
    padding: 0.65rem 0.5rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
  }
  .lexicon-word-table .lexicon-col-vi {
    font-weight: 600;
  }
  .lexicon-word-table .lexicon-col-type {
    color: var(--muted);
    white-space: nowrap;
  }
  .lexicon-word-table .lexicon-col-en {
    color: var(--text);
  }
  .lexicon-word-table .lexicon-actions {
    white-space: nowrap;
  }
  .lexicon-sort-link {
    color: inherit;
    text-decoration: none;
  }
  .lexicon-sort-link:hover {
    text-decoration: underline;
  }
  .lexicon-col-check {
    width: 2rem;
    text-align: center;
  }
  .lexicon-bulk-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
    margin: 0.75rem 0 1rem;
  }
  .lexicon-duplicate-badge {
    display: inline-block;
    margin-left: 0.35rem;
    padding: 0.1rem 0.4rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 4px;
    background: #fef3c7;
    color: #92400e;
    vertical-align: middle;
  }
  .filter-form .filter-checkbox {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin: 0;
    white-space: nowrap;
  }
  .filter-form .filter-checkbox input {
    width: auto;
    min-height: auto;
  }
  .lexicon-entry-details summary {
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--accent, #2563eb);
  }
  .lexicon-entry-details-body {
    margin-top: 0.5rem;
    font-size: 0.9rem;
  }
  .lexicon-entry-details-body p {
    margin: 0.35rem 0;
  }
  .lexicon-entry-details-body audio {
    max-width: 100%;
  }
  .lexicon-picker-list ul.lexicon-entry-picker {
    list-style: none;
    padding: 0;
    margin: 0;
  }
  .lexicon-picker-list ul.lexicon-entry-picker li {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    background: var(--card);
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
  }
  .lexicon-picker-list ul.lexicon-entry-picker li label {
    margin: 0;
    flex: 1;
    font-weight: normal;
    cursor: pointer;
  }
  .lexicon-picker-list ul.lexicon-entry-picker li input {
    flex-shrink: 0;
    width: 1.1rem;
    height: 1.1rem;
    margin-top: 0.15rem;
  }
  .tag-list {
    margin: 0.5rem 0 0;
  }
  .entry-meta {
    font-size: 0.85rem;
    margin: 0.5rem 0 0;
  }
  .inline-form {
    display: inline;
  }
  .link-button {
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
    font: inherit;
    padding: 0;
    text-decoration: underline;
  }
  .data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
  }
  .data-table th, .data-table td {
    border: 1px solid var(--border);
    padding: 0.5rem;
    text-align: left;
  }
  .status-badge-ok {
    background: var(--success-bg);
  }
  @media (max-width: 640px) {
    .container {
      padding: 1rem;
    }
    .nav-toggle {
      display: flex;
    }
    .site-nav {
      display: none;
      width: 100%;
      flex-direction: column;
      align-items: flex-start;
      padding: 0.5rem 0 1rem;
      border-top: 1px solid var(--border);
    }
    .site-nav.is-open {
      display: flex;
    }
    .user-menu {
      width: 100%;
    }
    .user-menu-panel {
      position: static;
      box-shadow: none;
      border: none;
      padding-left: 0;
    }
    .login-card {
      margin: 1rem auto;
      padding: 1.25rem;
    }
    .app-grid {
      grid-template-columns: 1fr;
    }
    .app-action-group {
      flex-direction: column;
      align-items: stretch;
    }
    .app-action-group > .btn {
      width: 100%;
    }
  }
}
@layer components {
  .person-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
  }
  .person-card-header h3 {
    margin: 0;
    flex: 1;
  }
  .user-local-time {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.15rem;
    color: var(--muted);
    white-space: nowrap;
    text-align: right;
  }
  .user-local-time-label {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--muted);
    opacity: 0.85;
  }
  .user-local-time-value {
    font-size: 0.85rem;
  }
  button.dashboard-stat-chip.count-toggle {
    text-decoration: none;
  }
  button.dashboard-stat-chip.count-toggle:hover {
    text-decoration: none;
  }
  .status-panel {
    margin: 0.75rem 0 0;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
  }
  .dashboard-stat-panels .status-panel:last-child {
    margin-bottom: 0;
  }
  .status-panel.is-hidden {
    display: none;
  }
  .status-panel h3 {
    margin: 0 0 0.5rem;
    font-size: 1rem;
  }
  .status-panel .hint {
    margin: 0 0 0.5rem;
  }
  .status-badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-left: 0.25rem;
  }
  .status-badge-overdue {
    background: var(--color-error-bg);
    color: var(--color-text-main);
  }
  .learner-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
  }
  .learner-card {
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg);
  }
  .learner-card.is-open {
    border-color: var(--primary);
    background: var(--info-bg);
  }
  .learner-card h3 {
    margin: 0;
  }
  .learner-toggle {
    background: none;
    border: none;
    padding: 0;
    font: inherit;
    font-weight: 600;
    color: var(--primary);
    cursor: pointer;
    text-align: left;
  }
  .learner-toggle:hover {
    text-decoration: underline;
  }
  .learner-card-counts {
    margin: 0.35rem 0 0.5rem;
    font-size: 0.9rem;
    color: var(--muted);
  }
  .learner-details {
    margin-top: 0.75rem;
    padding: 0 0.25rem 0.25rem;
  }
  .learner-details.is-hidden {
    display: none;
  }
  .tutor-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
  }
  .tutor-card {
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg);
  }
  .tutor-card.is-open {
    border-color: var(--primary);
    background: var(--info-bg);
  }
  .tutor-card h3 {
    margin: 0;
  }
  .tutor-toggle {
    background: none;
    border: none;
    padding: 0;
    font: inherit;
    font-weight: 600;
    color: var(--primary);
    cursor: pointer;
    text-align: left;
  }
  .tutor-toggle:hover {
    text-decoration: underline;
  }
  .tutor-card-counts {
    margin: 0.35rem 0 0;
    font-size: 0.9rem;
    color: var(--muted);
  }
  .tutor-details {
    margin-top: 0.75rem;
    padding: 0 0.25rem 0.25rem;
  }
  .tutor-details.is-hidden {
    display: none;
  }
  .dashboard-count-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem 0.35rem;
  }
  .dashboard-count-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--muted);
    margin-right: 0.15rem;
  }
  .dashboard-card-actions {
    margin: 0.75rem 0 0;
  }
  .dashboard-card-actions .btn {
    margin-top: 0;
    width: auto;
  }
  .dashboard-card-stats {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.75rem;
  }
  .dashboard-stat-section {
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
  }
  .dashboard-stat-section-title {
    margin: 0 0 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--muted);
  }
  .dashboard-stat-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.35rem;
    padding: 0.25rem;
    border-radius: 8px;
    background: var(--bg);
  }
  .dashboard-stat-chip {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.15rem;
    min-height: 44px;
    padding: 0.5rem 0.35rem;
    border: 1px solid transparent;
    border-bottom: 2px solid transparent;
    border-radius: 8px;
    background: var(--bg);
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    font: inherit;
  }
  button.dashboard-stat-chip {
    width: 100%;
  }
  .dashboard-stat-chip:hover {
    border-color: var(--primary);
    background: var(--info-bg);
  }
  .dashboard-stat-chip.is-active {
    border-color: var(--border);
    border-bottom-color: var(--primary);
    background: var(--card);
    color: var(--primary);
    font-weight: 600;
  }
  .dashboard-stat-chip.is-active .dashboard-stat-label {
    color: var(--primary);
    font-weight: 600;
  }
  .dashboard-stat-chip.is-active .dashboard-stat-value {
    color: var(--primary);
  }
  .dashboard-stat-panels .status-panel:not(.is-hidden) {
    border-top-left-radius: 0;
  }
  .dashboard-stat-chip-alert {
    border-color: var(--color-primary);
    background: var(--color-alert-tint);
  }
  .dashboard-stat-chip-alert .dashboard-stat-value {
    color: var(--color-text-main);
    font-weight: 700;
  }
  .dashboard-stat-chip-alert .dashboard-stat-label {
    color: var(--color-text-muted);
  }
  .dashboard-stat-chip-link .dashboard-stat-label {
    color: var(--primary);
  }
  .dashboard-stat-value {
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.1;
    color: var(--text);
  }
  .dashboard-stat-label {
    font-size: 0.7rem;
    font-weight: 500;
    text-align: center;
    line-height: 1.2;
    color: var(--muted);
  }
  @media (max-width: 640px) {
    .dashboard-card-actions-sticky {
      position: sticky;
      top: 0;
      z-index: 2;
      margin: 0.5rem -1rem 0.75rem;
      padding: 0.5rem 1rem;
      background: var(--bg);
      border-bottom: 1px solid var(--border);
    }
    .learner-card.is-open .dashboard-card-actions-sticky, .tutor-card.is-open .dashboard-card-actions-sticky {
      background: var(--info-bg);
    }
    .dashboard-card-actions {
      flex-direction: column;
      align-items: stretch;
    }
    .dashboard-card-actions .btn {
      width: 100%;
      text-align: center;
    }
    .dashboard-stat-row {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .dashboard-stat-row .dashboard-stat-chip:last-child:nth-child(odd) {
      grid-column: 1 / -1;
    }
  }
  .study-now__intro {
    margin-bottom: var(--space-3, 0.75rem);
  }
  .study-now__lead {
    margin: 0.35rem 0 0;
  }
  .study-now__option-head {
    margin-bottom: var(--space-3, 0.75rem);
  }
  .study-now__label {
    margin: 0;
    font-size: 1.05rem;
  }
  .study-now__blurb {
    margin: 0.35rem 0 0;
    font-size: 0.95rem;
  }
  .study-now__summary {
    margin: 0.5rem 0 0;
    font-size: 0.85rem;
  }
  .study-session__list {
    list-style: none;
    margin: 0;
    padding: 0;
  }
}
@layer components {
  .settings-hub .hint {
    margin-bottom: 1rem;
  }
  .settings-hub-title {
    margin: 0 0 0.35rem;
    font-size: 1.1rem;
  }
  .settings-hub .app-grid {
    margin-top: 0.5rem;
  }
  .settings-section-view {
    margin-top: 0.5rem;
  }
  .settings-section-header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.5rem 1rem;
    margin-bottom: 1rem;
  }
  .settings-section-header h2 {
    margin: 0;
  }
  .settings-section-header p {
    margin: 0;
  }
  .settings-section {
    margin-bottom: 0;
  }
  .settings-dashboard-link {
    margin-top: 2rem;
    margin-bottom: 0;
  }
  .settings-logout {
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: var(--border-default);
  }
  .settings-block__hint {
    margin: 0 0 var(--space-2);
    font-size: var(--text-xs);
  }
  .settings-group {
    background: var(--color-surface);
    border: var(--border-default);
    border-radius: var(--radius-xl);
    overflow: clip;
  }
  .settings-group__row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-height: 56px;
    padding: var(--space-3) var(--space-4);
    color: var(--color-text);
    text-decoration: none;
    background: transparent;
    border: 0;
    width: 100%;
    box-sizing: border-box;
  }
  .settings-group__row + .settings-group__row, .settings-group__footer {
    border-top: var(--border-default);
  }
  .settings-group__row:hover:not(.settings-group__row--static):not(.settings-group__row--toggle) {
    background: var(--color-surface-alt);
  }
  .settings-group__row--static {
    cursor: default;
  }
  .settings-group__icon {
    flex: 0 0 auto;
    color: var(--color-text-muted);
  }
  .settings-group__label {
    flex: 0 0 auto;
    font-size: 15px;
    font-weight: var(--weight-semibold);
    color: var(--color-text);
  }
  .settings-group__text {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
  }
  .settings-group__text .settings-group__label {
    flex: none;
  }
  .settings-group__meta {
    font-size: 12px;
    color: var(--color-text-muted);
  }
  .settings-group__value {
    margin-left: auto;
    font-size: 14px;
    color: var(--color-text-muted);
    text-align: right;
    max-width: 55%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .settings-group__chev {
    flex: 0 0 auto;
    color: var(--color-text-subtle);
  }
  .settings-group__row--toggle .settings-group__label, .settings-group__row--toggle .settings-group__text {
    flex: 1 1 auto;
  }
  .settings-group__footer {
    padding: var(--space-3) var(--space-4);
  }
  .settings-switch {
    position: relative;
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
    margin-left: auto;
    cursor: pointer;
  }
  .settings-switch__input {
    position: absolute;
    opacity: 0;
    width: 1px;
    height: 1px;
    margin: 0;
  }
  .settings-switch__track {
    width: 44px;
    height: 26px;
    border-radius: 999px;
    background: var(--color-border);
    position: relative;
    transition: background 0.15s ease;
  }
  .settings-switch__track::after {
    content: "";
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    border-radius: 999px;
    background: #fff;
    box-shadow: var(--shadow-xs);
    transition: transform 0.15s ease;
  }
  .settings-switch__input:checked + .settings-switch__track {
    background: var(--color-success);
  }
  .settings-switch__input:checked + .settings-switch__track::after {
    transform: translateX(18px);
  }
  .settings-switch__input:focus-visible + .settings-switch__track {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
  }
  .settings-signout {
    margin-top: var(--space-2);
  }
  .settings-signout__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    width: 100%;
    min-height: 48px;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-pill);
    border: var(--border-default);
    background: var(--color-surface);
    color: var(--color-danger);
    font: inherit;
    font-size: 15px;
    font-weight: var(--weight-medium);
    cursor: pointer;
  }
  .settings-signout__btn:hover {
    background: var(--color-danger-soft);
  }
  .language-picker, .native-language-picker {
    position: relative;
  }
  .language-picker__list, .native-language-picker__list {
    position: absolute;
    z-index: 20;
    left: 0;
    right: 0;
    top: calc(100% + 4px);
    margin: 0;
    padding: var(--space-1);
    max-height: 240px;
    overflow-y: auto;
    list-style: none;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md, 0 8px 24px rgba(0, 0, 0, 0.08));
  }
  .language-picker__list[hidden], .native-language-picker__list[hidden] {
    display: none;
  }
  .language-picker__list li, .native-language-picker__list li {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--color-text);
  }
  .language-picker__list li[hidden], .native-language-picker__list li[hidden] {
    display: none;
  }
  .language-picker__list li:hover, .language-picker__list li.is-active, .native-language-picker__list li:hover, .native-language-picker__list li.is-active {
    background: var(--color-surface-alt, var(--color-bg));
  }
  @media (max-width: 640px) {
    .settings-section-header {
      flex-direction: column;
      align-items: flex-start;
    }
  }
}
@layer components {
  .landing-main {
    max-width: 1100px;
  }
  .landing-hero {
    text-align: center;
    padding: 2rem 0 2.5rem;
  }
  .landing-eyebrow {
    margin: 0 0 0.35rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
  }
  .landing-status-line {
    margin: 0 0 0.75rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--muted);
  }
  .landing-hero h1 {
    margin: 0 0 1rem;
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    line-height: 1.2;
  }
  .landing-lead {
    margin: 0 auto 1.75rem;
    max-width: 42rem;
    color: var(--muted);
    font-size: 1.05rem;
  }
  .landing-cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
  }
  .landing-btn {
    margin-top: 0;
    min-height: 44px;
    min-width: 10rem;
    width: auto;
  }
  .landing-section {
    margin: 2.5rem 0;
  }
  .landing-section h2 {
    margin-bottom: 1.25rem;
    font-size: 1.35rem;
  }
  .landing-status-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }
  .landing-status-chip {
    margin: 0;
    padding: 0.85rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--card);
  }
  .landing-status-chip strong {
    display: block;
    margin-bottom: 0.2rem;
    font-size: 0.95rem;
    color: var(--text);
  }
  .landing-status-chip span {
    display: block;
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.4;
  }
  .landing-status-chip-live {
    border-color: var(--primary);
    background: var(--success-bg);
  }
  .landing-status-chip-live strong {
    color: var(--primary-dark);
  }
  .landing-status-chip-next {
    border-color: #d97706;
    background: #fffbeb;
  }
  .landing-status-chip-next strong {
    color: #92400e;
  }
  .landing-status-chip-soon {
    background: var(--bg);
  }
  .landing-role-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
  .landing-role-card {
    margin-bottom: 0;
  }
  .landing-role-card h3 {
    color: var(--primary);
    margin-bottom: 0.5rem;
  }
  .landing-role-card p {
    margin: 0;
    color: var(--muted);
  }
  .landing-feature-grid {
    margin-top: 0;
  }
  .landing-feature-card {
    position: relative;
    padding-bottom: 2.5rem;
  }
  .landing-feature-card .coming-soon-badge {
    position: absolute;
    right: 1rem;
    bottom: 1rem;
  }
  .landing-badge-available {
    background: var(--success-bg);
    color: var(--primary-dark);
    border: 1px solid var(--primary);
  }
  .landing-badge-next {
    background: #fffbeb;
    color: #92400e;
    border: 1px solid #d97706;
  }
  .landing-steps {
    list-style: none;
    margin: 0;
    padding: 0;
    counter-reset: landing-step;
  }
  .landing-steps li {
    counter-increment: landing-step;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.25rem 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
  }
  .landing-steps li:last-child {
    border-bottom: none;
  }
  .landing-steps li::before {
    content: counter(landing-step);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-weight: 700;
    font-size: 0.95rem;
    grid-row: span 2;
    align-self: start;
    margin-top: 0.1rem;
  }
  .landing-steps strong {
    display: block;
  }
  .landing-steps span {
    color: var(--muted);
    font-size: 0.95rem;
  }
  .landing-footer {
    text-align: center;
    padding: 1.5rem 0 2rem;
    color: var(--muted);
    font-size: 0.95rem;
  }
  .landing-footer a {
    color: var(--primary);
    text-decoration: none;
  }
  .landing-footer a:hover {
    text-decoration: underline;
  }
  .landing-footer-sep {
    margin: 0 0.5rem;
  }
  .landing-footer-links {
    margin: 0;
  }
  .landing-footnote {
    margin: 1.25rem auto 0;
    max-width: 36rem;
    font-size: 0.85rem;
    color: var(--muted);
  }
  .landing-copyright {
    margin: 0.75rem 0 0;
    font-size: 0.85rem;
    color: var(--muted);
  }
  @media (max-width: 640px) {
    .landing-hero {
      padding: 1.25rem 0 2rem;
      text-align: left;
    }
    .landing-cta-group {
      flex-direction: column;
      align-items: stretch;
    }
    .landing-btn {
      width: 100%;
      text-align: center;
    }
    .landing-role-grid {
      grid-template-columns: 1fr;
    }
    .landing-status-list {
      grid-template-columns: 1fr;
    }
  }
}
@layer components {
  .flashcards-due-banner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    margin: 1rem 0;
  }
  .flashcards-tutor-section {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
  }
  .flashcards-tutor-section h2 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
  }
  .flashcards-deck-list {
    list-style: none;
    padding: 0;
    margin: 0;
  }
  .flashcards-deck-item {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
  }
  .flashcards-deck-info {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
  }
  .flashcards-review {
    max-width: 32rem;
    margin-left: auto;
    margin-right: auto;
  }
  .flashcard {
    perspective: 1000px;
    margin: 1.5rem 0;
    min-height: 14rem;
    cursor: pointer;
  }
  .flashcard-inner {
    position: relative;
    width: 100%;
    min-height: 14rem;
    transition: transform 0.4s;
    transform-style: preserve-3d;
  }
  .flashcard.is-flipped .flashcard-inner {
    transform: rotateY(180deg);
  }
  .flashcard-face {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    border: 2px solid var(--color-primary);
    border-radius: 12px;
    padding: 1.25rem;
    background: var(--color-surface);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
  }
  .flashcard-back {
    transform: rotateY(180deg);
  }
  .flashcard-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin: 0 0 0.5rem;
  }
  .flashcard-text {
    font-size: 1.75rem;
    line-height: 1.3;
    margin: 0;
    word-break: break-word;
  }
  .flashcard-meta, .flashcard-example, .flashcard-notes {
    margin: 0.75rem 0 0;
    font-size: 1rem;
  }
  .flashcard-hint {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--color-text-muted);
  }
  .flashcards-rating-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin: 1.5rem 0;
  }
  .flashcards-rating-grid form {
    margin: 0;
  }
  .flashcards-rate {
    width: 100%;
    min-height: 44px;
    font-size: 1rem;
    padding: 0.75rem 1rem;
  }
  .flashcards-rate-again {
    background: #b91c1c;
    border-color: #b91c1c;
  }
  .flashcards-rate-hard {
    background: #c45c26;
    border-color: #c45c26;
  }
  .flashcards-rate-good {
    background: #15803d;
    border-color: #15803d;
  }
  .flashcards-rate-easy {
    background: #1d4ed8;
    border-color: #1d4ed8;
  }
  .flashcards-deck-picker {
    border: none;
    padding: 0;
    margin: 1rem 0;
  }
  .flashcards-deck-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    cursor: pointer;
  }
  .flashcards-filter-form {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
  }
  .flashcards-filter-form select {
    font-size: 16px;
    min-height: 44px;
    padding: 0.5rem;
  }
  @media (max-width: 640px) {
    .flashcard-text {
      font-size: 1.5rem;
    }
  }
}
@layer components {
  .exercise-block {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
    background: var(--bg);
  }
  .status-banner {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    margin: 0.5rem 0;
  }
  .status-banner--draft {
    background: var(--bg);
    color: var(--muted);
    border: 1px solid var(--border);
  }
  .status-banner--submitted {
    background: var(--info-bg);
    color: var(--primary-dark);
  }
  .status-banner--graded {
    background: #e8f5e9;
    color: #2e7d32;
  }
  .status-banner--revision {
    background: #fff3e0;
    color: #e65100;
  }
  .media-autosave-warning {
    color: #e65100;
    font-weight: 600;
    margin: 0.25rem 0 0.5rem;
  }
  .media-autosave-warning.is-hidden, .media-autosave-warning[hidden] {
    display: none;
  }
  .exercise-block.is-removed {
    opacity: 0.5;
  }
  .exercise-image {
    max-width: 100%;
    border-radius: 8px;
  }
  .exercise-type-commentary {
    margin: 0.25rem 0 0.75rem;
  }
  .delete-label {
    display: block;
    margin-top: 0.75rem;
    font-weight: normal;
  }
  .is-hidden {
    display: none;
  }
  #add-exercise {
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
  }
  .existing-media-fieldset {
    border: none;
    margin: 0 0 1rem;
    padding: 0;
  }
  .existing-media-fieldset legend {
    font-weight: 600;
    margin-bottom: 0.35rem;
  }
  .existing-media-fieldset ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }
  .existing-media-fieldset li {
    margin: 0.35rem 0;
  }
  .grading-fieldset {
    border: none;
    margin: 1rem 0 0.5rem;
    padding: 0;
  }
  .grading-fieldset legend {
    font-weight: 600;
    margin-bottom: 0.35rem;
  }
  .grading-form .grading-fieldset .grading-correctness-options {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
  }
  .grading-form .grading-fieldset .grading-correctness-options > div {
    margin: 0;
  }
  .grading-form .grading-fieldset .grading-correctness-options label {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin: 0;
    padding: 0.4rem 0.85rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    cursor: pointer;
    font-weight: 500;
  }
  .grading-form .grading-fieldset .grading-correctness-options label:has(input:checked) {
    border-color: var(--accent, #2563eb);
    background: var(--accent, #2563eb);
    @supports (color: color-mix(in lab, red, red)) {
      background: color-mix(in srgb, var(--accent, #2563eb) 10%, var(--card));
    }
  }
  .grading-controls .grading-detail-fields {
    display: none;
    margin-top: 0.75rem;
  }
  .grading-controls:has(input[value="false"]:checked) .grading-detail-fields {
    display: block;
  }
  .grading-detail-fields label {
    display: block;
    margin: 1rem 0 0.35rem;
    font-weight: 600;
  }
  .grading-exercise {
    margin-top: 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
  }
  .grading-exercise + .grading-exercise {
    margin-top: 0.75rem;
  }
  .grading-exercise-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 1rem;
    cursor: pointer;
    list-style: none;
    font-weight: 600;
  }
  .grading-exercise-summary::-webkit-details-marker {
    display: none;
  }
  .grading-exercise-summary::before {
    content: "▸";
    margin-right: 0.5rem;
    color: var(--muted);
    transition: transform 0.15s ease;
  }
  .grading-exercise[open] > .grading-exercise-summary::before {
    transform: rotate(90deg);
  }
  .grading-exercise-title {
    flex: 1;
    min-width: 0;
  }
  .grading-exercise-progress {
    flex-shrink: 0;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--muted);
  }
  .grading-exercise-body {
    padding: 0 1rem 1rem;
    border-top: 1px solid var(--border);
  }
  .grading-help {
    margin: 0.75rem 0 1rem;
    font-size: 0.9rem;
  }
  .grading-help summary {
    cursor: pointer;
    color: var(--primary);
    font-weight: 600;
  }
  .grading-help-table {
    width: 100%;
    margin-top: 0.75rem;
    border-collapse: collapse;
    font-size: 0.85rem;
  }
  .grading-help-table th, .grading-help-table td {
    padding: 0.5rem 0.65rem;
    border: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
  }
  .grading-help-table th {
    background: var(--bg);
    font-weight: 600;
  }
  .grading-actions-sticky {
    position: sticky;
    bottom: 0;
    z-index: 10;
    padding: 1rem 0;
    background: var(--card);
    border-top: 1px solid var(--border);
    margin-top: 0;
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.06);
  }
  .grading-footer {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }
  .grading-primary-actions, .grading-secondary-actions {
    margin-top: 0;
  }
  .grading-actions-bar {
    display: flex;
    gap: 0.75rem;
    align-items: stretch;
  }
  .grading-actions-bar > .btn {
    flex: 1 1 0;
    min-width: 0;
    width: auto;
    text-align: center;
  }
  .grading-secondary-actions .delete-assignment-control {
    margin-top: 0;
  }
  @media (max-width: 640px) {
    .card--grading {
      padding-bottom: calc(4.5rem + env(safe-area-inset-bottom));
    }
    .grading-footer .app-action-group, .grading-footer .grading-secondary-actions form {
      flex-direction: column;
      align-items: stretch;
      width: 100%;
    }
    .grading-footer .btn, .grading-footer .app-action-group .inline-form {
      width: 100%;
    }
    .grading-footer .grading-secondary-actions form .btn {
      width: 100%;
    }
    .grading-footer .delete-assignment-trigger {
      width: 100%;
    }
    .grading-actions-bar {
      flex-direction: column;
    }
    .grading-actions-sticky {
      margin-left: -1.5rem;
      margin-right: -1.5rem;
      margin-bottom: -1.5rem;
      padding: 0.75rem 1.5rem calc(0.75rem + env(safe-area-inset-bottom));
    }
    .grading-form .grading-fieldset .grading-correctness-options {
      flex-direction: column;
      gap: 0.5rem;
    }
    .grading-form .grading-fieldset .grading-correctness-options label {
      width: 100%;
      min-height: 44px;
      justify-content: center;
    }
    .grading-help-table thead {
      display: none;
    }
    .grading-help-table tr {
      display: block;
      margin-bottom: 0.75rem;
      border: 1px solid var(--border);
      border-radius: 8px;
      overflow: hidden;
    }
    .grading-help-table td {
      display: block;
      border: none;
      border-bottom: 1px solid var(--border);
    }
    .grading-help-table td:last-child {
      border-bottom: none;
    }
    .grading-help-table td:first-child {
      background: var(--bg);
      font-weight: 600;
    }
    .grading-exercise-summary {
      flex-wrap: wrap;
      row-gap: 0.35rem;
    }
    .grading-exercise-progress {
      flex-basis: 100%;
      padding-left: 1.25rem;
    }
  }
  .grading-actions-sticky .assignment-actions {
    margin-top: 0;
  }
  .grading-form textarea {
    width: 100%;
    padding: 0.65rem 0.75rem;
    font-size: 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
    margin-top: 0.35rem;
  }
  .improvement-notes-field {
    margin-top: 0.75rem;
  }
  .submission-answer {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
  }
  .submission-answer h4 {
    margin: 0 0 0.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--muted);
  }
  .assignment-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    margin-top: 1rem;
  }
  .assignment-actions .delete-assignment-control {
    margin-top: 0;
  }
  .delete-assignment-control {
    margin-top: 1.5rem;
  }
  .delete-assignment-confirm {
    margin-top: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--error-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
  }
  .delete-assignment-confirm-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    margin-top: 0.75rem;
  }
  .delete-assignment-confirm .delete-assignment-form {
    margin-top: 0;
  }
  .delete-assignment-confirm-actions .btn-secondary {
    margin-top: 0;
  }
  .btn-delete {
    background: var(--error-bg);
    color: var(--primary-dark);
    border: 1px solid var(--border);
    width: auto;
    display: inline-block;
    padding: 0.65rem 1.25rem;
    font-size: 1rem;
    border-radius: 8px;
    cursor: pointer;
  }
  .btn-delete:hover {
    opacity: 0.9;
  }
  .feedback-box {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    background: var(--info-bg);
    border-radius: 8px;
  }
  .status-badge-correct {
    background: var(--info-bg);
    color: var(--primary-dark);
    border: 1px solid var(--primary);
  }
  .status-badge-incorrect {
    background: var(--error-bg);
    color: var(--primary-dark);
  }
  .exercise-block .status-badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
  }
  .skip-exercise-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    font-weight: normal;
    cursor: pointer;
  }
  .skip-exercise-hint {
    margin-top: 0.25rem;
    margin-bottom: 0;
  }
  .exercise-block.is-skipped {
    opacity: 0.75;
  }
  .worksheet-intro {
    white-space: pre-wrap;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 1rem;
  }
  .worksheet-example-box {
    margin: 0.75rem 0 1rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-left: 4px solid var(--accent, #c9a227);
    border-radius: 6px;
    background: rgba(201, 162, 39, 0.08);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--example-text, #5c5346);
  }
  .worksheet-example-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--accent, #c9a227);
    margin-bottom: 0.35rem;
  }
  .worksheet-example-content {
    white-space: pre-wrap;
    line-height: 1.6;
    font-size: 0.95rem;
  }
  .worksheet-word-bank {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0.75rem 0 1rem;
  }
  .worksheet-word-chip {
    display: inline-block;
    padding: 0.25rem 0.65rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface, #f5f5f5);
    font-size: 0.9rem;
  }
  .worksheet-row-with-image {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.75rem 1rem;
    align-items: start;
    margin-bottom: 0.75rem;
  }
  .worksheet-row-content {
    min-width: 0;
  }
  .worksheet-row-image {
    flex-shrink: 0;
  }
  .worksheet-item-image {
    max-width: 5rem;
    max-height: 3.5rem;
    object-fit: contain;
  }
  .tutor-worksheet-panel {
    margin: 0.75rem 0 1rem;
  }
  .tutor-worksheet-live-preview {
    margin-bottom: 1rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--surface, #fafafa);
  }
  .tutor-worksheet-live-preview h4 {
    margin: 0 0 0.5rem;
    font-size: 0.95rem;
  }
  .tutor-worksheet-rows-panel {
    margin-top: 0.75rem;
  }
  .tutor-worksheet-rows-panel summary {
    cursor: pointer;
    font-weight: 600;
    margin-bottom: 0.5rem;
  }
  .worksheet-row-image-field {
    margin-top: 0.5rem;
  }
  .worksheet-row-current-image img {
    max-width: 5rem;
    margin: 0.35rem 0;
  }
  @media (max-width: 640px) {
    .worksheet-row-with-image {
      grid-template-columns: 1fr;
    }
    .worksheet-row-image {
      order: -1;
    }
    .worksheet-item-image {
      max-width: 4rem;
    }
  }
  .worksheet-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  .worksheet-point-card {
    background: var(--card);
    @supports (color: color-mix(in lab, red, red)) {
      background: color-mix(in srgb, var(--card) 94%, var(--border));
    }
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.875rem 1rem;
  }
  .worksheet-item {
    padding: 0;
  }
  .worksheet-item-prompt {
    white-space: pre-wrap;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.95rem;
    margin: 0 0 0.5rem;
  }
  .worksheet-item-input {
    width: 100%;
    padding: 0.65rem 0.75rem;
    font-size: 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
  }
  .worksheet-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }
  .worksheet-group-stem {
    margin-bottom: 0.25rem;
  }
  .worksheet-blank-line {
    border-top: none;
    padding-top: 0;
    padding-left: 1rem;
  }
  .worksheet-arrow-blank-line {
    padding-left: 1rem;
    margin-bottom: 0.35rem;
  }
  .worksheet-arrow-blank-line .worksheet-inline-blank-placeholder {
    display: inline-block;
    min-width: 3rem;
    border-bottom: 2px solid #888;
    color: transparent;
    user-select: none;
  }
  .worksheet-blank-prompt {
    white-space: pre-wrap;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.9rem;
    color: var(--muted);
    margin-bottom: 0.35rem;
  }
  .worksheet-inline-line {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0;
    white-space: normal;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.95rem;
    line-height: 1.8;
    margin: 0 0 0.75rem;
  }
  .worksheet-inline-prefix, .worksheet-inline-suffix {
    display: inline;
    color: var(--muted);
  }
  .worksheet-inline-input {
    display: inline-block;
    vertical-align: baseline;
    min-width: 6ch;
    width: auto;
    max-width: 100%;
    padding: 0 0.1rem 0.1rem;
    margin: 0;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--muted);
    border: none;
    border-radius: 0;
    border-bottom: 1px dashed var(--border);
    background: transparent;
    outline: none;
  }
  .form input.worksheet-inline-input, .worksheet-inline-line .worksheet-inline-input {
    width: auto;
    max-width: 100%;
    flex: 0 0 auto;
    field-sizing: content;
    padding: 0 0.1rem 0.1rem;
    border: none;
    border-bottom: 1px dashed var(--border);
    border-radius: 0;
    background: transparent;
    font-size: 0.95rem;
  }
  .worksheet-inline-input::placeholder {
    color: var(--muted);
    opacity: 1;
  }
  .worksheet-inline-input:not(:placeholder-shown) {
    font-family: "Segoe UI", system-ui, sans-serif;
    font-weight: 600;
    color: var(--accent, #2563eb);
    background: var(--accent, #2563eb);
    @supports (color: color-mix(in lab, red, red)) {
      background: color-mix(in srgb, var(--accent, #2563eb) 12%, transparent);
    }
    padding: 0.1rem 0.35rem;
    border-bottom: none;
    border-radius: 4px;
  }
  .worksheet-inline-input:focus {
    border-bottom-color: var(--accent, #2563eb);
  }
  .worksheet-inline-input:not(:placeholder-shown):focus {
    outline: 1px solid var(--accent, #2563eb);
    @supports (color: color-mix(in lab, red, red)) {
      outline: 1px solid color-mix(in srgb, var(--accent, #2563eb) 35%, transparent);
    }
    outline-offset: 2px;
  }
  .worksheet-inline-answer {
    display: inline;
    font-family: "Segoe UI", system-ui, sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--accent, #2563eb);
    background: var(--accent, #2563eb);
    @supports (color: color-mix(in lab, red, red)) {
      background: color-mix(in srgb, var(--accent, #2563eb) 12%, transparent);
    }
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
  }
  .worksheet-inline-answer-empty {
    color: var(--muted);
    font-weight: 400;
    background: transparent;
  }
  .worksheet-inline-group {
    margin-top: 0;
    padding-top: 0;
  }
  .worksheet-inline-grade-item {
    margin-left: 0.5rem;
    padding-left: 0.75rem;
    border-left: 2px solid var(--border);
  }
  .worksheet-inline-feedback {
    margin: 0.35rem 0 0.75rem 0.5rem;
  }
  .grading-item {
    margin-top: 1rem;
  }
  .assignment-summary-field {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
  }
  .assignment-summary-feedback {
    margin-bottom: 1rem;
  }
  .audio-recorder {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
    margin: 0.5rem 0;
  }
  .audio-recorder audio {
    width: 100%;
    margin-top: 0.5rem;
  }
  .homework-form-card {
    padding: var(--space-6);
    border: var(--border-default);
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xs);
  }
  .homework-form-card > .field + .field {
    margin-top: var(--space-4);
  }
  .assign-to {
    border: 0;
    padding: 0;
    margin: 0;
    min-width: 0;
  }
  .assign-to__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
  }
  .assign-to__header .form-label {
    margin-bottom: 0;
  }
  .assign-to__select-all {
    background: none;
    border: none;
    padding: 0;
    font: inherit;
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-primary);
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
  }
  .assign-to__select-all:hover {
    color: var(--color-primary-hover);
  }
  .learner-pick-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
  }
  .learner-pick-row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-height: 56px;
    padding: var(--space-2) var(--space-4);
    border: var(--border-default);
    border-radius: var(--radius-pill);
    background: var(--color-surface);
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-standard), border-color var(--duration-fast) var(--ease-standard);
  }
  .learner-pick-row:hover {
    background: var(--color-surface-alt);
  }
  .learner-pick-row--selected, .learner-pick-row:has(input:checked) {
    background: var(--color-primary-soft);
    border-color: color-mix(in srgb, #c45c26 35%, #e0dbd3);
    @supports (color: color-mix(in lab, red, red)) {
      border-color: color-mix(in srgb, var(--color-primary) 35%, var(--color-border));
    }
  }
  .learner-pick-row input[type="checkbox"] {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
  .learner-pick-row__check {
    flex: 0 0 24px;
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    background: transparent;
    position: relative;
  }
  .learner-pick-row input:checked + .learner-pick-row__check {
    background: var(--color-primary);
    border-color: var(--color-primary);
  }
  .learner-pick-row input:checked + .learner-pick-row__check::after {
    content: "";
    position: absolute;
    left: 6px;
    top: 2px;
    width: 6px;
    height: 11px;
    border: solid var(--color-primary-fg);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
  }
  .learner-pick-row__avatar {
    flex: 0 0 40px;
    width: 40px;
    height: 40px;
    font-size: var(--text-base);
    background: var(--color-surface-alt);
    color: var(--color-text);
  }
  .learner-pick-row__name {
    flex: 1;
    min-width: 0;
    font-size: var(--text-base);
    font-weight: var(--weight-medium);
  }
  .prior-attempt {
    margin-bottom: 1rem;
    padding: 0.75rem;
    border-left: 3px solid var(--border);
    background: var(--surface-muted, #f8f8f8);
  }
  .template-picker-list {
    margin: 0.5rem 0 0;
    padding-left: 1.25rem;
  }
  .inline-form {
    display: inline;
  }
  .btn-link {
    background: none;
    border: none;
    color: inherit;
    text-decoration: underline;
    cursor: pointer;
    padding: 0;
    font: inherit;
  }
  .visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
  .exercises-section__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
  }
  .exercises-section__header .section-title {
    margin-bottom: 0;
  }
  .exercises-section__count {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    white-space: nowrap;
  }
  .exercise-authoring-block {
    margin: var(--space-4) 0;
  }
  .exercise-authoring-block.is-removed {
    display: none;
  }
  .exercise-card {
    padding: var(--space-4);
    border: var(--border-default);
    border-radius: var(--radius-xl);
    background: var(--color-surface);
    box-shadow: var(--shadow-xs);
  }
  .exercise-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
  }
  .exercise-card__identity {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-width: 0;
  }
  .exercise-card__icon {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-surface-alt);
    color: var(--color-text-muted);
    flex: 0 0 36px;
  }
  .exercise-card__meta {
    margin: 0;
    font-size: 11px;
    letter-spacing: var(--tracking-caps);
    text-transform: uppercase;
    font-weight: var(--weight-semibold);
    color: var(--color-text-muted);
  }
  .exercise-card__delete {
    flex: 0 0 auto;
    color: var(--color-text-muted);
    background: transparent;
  }
  .exercise-card__delete .i-sm {
    width: 18px;
    height: 18px;
  }
  .exercise-card__delete:hover {
    color: var(--color-danger);
    background: var(--color-danger-soft);
  }
  .exercise-card .exercise-prompt-field {
    margin-top: 0;
  }
  .exercise-card .exercise-media-field {
    margin-top: var(--space-3);
  }
  .exercise-type-adder {
    margin-top: var(--space-4);
    padding: var(--space-3);
    border: var(--border-default);
    border-radius: var(--radius-xl);
    background: var(--color-surface-alt);
  }
  .exercise-type-picker__primary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-2);
  }
  .exercise-type-picker__secondary {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2);
  }
  .exercise-type-picker__option {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    min-height: 56px;
    padding: var(--space-2) var(--space-2);
    border: var(--border-default);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    box-shadow: var(--shadow-xs);
    color: var(--color-text);
    font: inherit;
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-standard), border-color var(--duration-fast) var(--ease-standard);
  }
  .exercise-type-picker__option .i {
    width: 18px;
    height: 18px;
  }
  .exercise-type-picker__option:hover {
    background: var(--color-surface-alt);
  }
  .exercise-type-picker__option:active {
    transform: scale(0.98);
  }
  .exercise-type-more__label {
    margin: var(--space-3) 0 var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-primary);
  }
  .template-callout {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    border: 1px dashed var(--color-border-strong);
    border-radius: var(--radius-lg);
    background: var(--color-surface-alt);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
  }
  .template-callout a {
    color: var(--color-primary);
    font-weight: var(--weight-semibold);
    text-decoration: underline;
  }
  .template-callout a:hover {
    color: var(--color-primary-hover);
  }
  .assignment-form-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding-top: var(--space-4);
    border-top: var(--border-default);
  }
  .assignment-form-footer .btn--primary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
  }
  @media (max-width: 640px) {
    .exercise-type-picker__primary {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    .exercise-type-picker__secondary {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .exercise-type-picker__option span {
      font-size: 10px;
      line-height: 1.2;
    }
  }
  .homework-hub-actions {
    margin: 1rem 0 1.5rem;
  }
  .homework-action-queue {
    margin: 1.5rem 0;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
  }
  .homework-action-queue h2 {
    margin: 0 0 0.75rem;
    font-size: 1rem;
  }
  .homework-action-queue-alert {
    border-color: var(--primary);
    background: var(--info-bg);
  }
  .homework-hub .form-actions {
    margin-top: 1.5rem;
  }
}
@layer components {
  .visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
  .lexicon-page > h1:first-child {
    margin-top: 0;
  }
  .lexicon-page-header, .lexicon-hub-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.75rem;
    align-items: flex-start;
    margin-bottom: 1rem;
  }
  .lexicon-page-header-main h1 {
    margin: 0 0 0.35rem;
  }
  .lexicon-page-header-main .help-block {
    margin-bottom: 0;
  }
  .lexicon-page-toolbar {
    margin-bottom: 1rem;
  }
  .lexicon-back {
    margin: 0 0 0.5rem;
  }
  .lexicon-back .btn {
    margin-top: 0;
    padding-left: 0;
  }
  .lexicon-section {
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border);
  }
  .lexicon-page > .lexicon-section:first-of-type, .lexicon-detail-panel > .lexicon-section-actions {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
  }
  .lexicon-section-summary {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
  }
  .lexicon-section-title {
    margin: 0 0 0.75rem;
    font-size: 1.1rem;
  }
  .lexicon-section-title-sm {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
  }
  .lexicon-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    align-items: center;
  }
  .lexicon-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    font-size: 0.8rem;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--muted);
    line-height: 1.3;
  }
  .lexicon-chip-warn, .lexicon-stat-chip-warn {
    background: var(--color-alert-tint);
    border-color: #e8c4a8;
    color: var(--color-text-main);
  }
  .lexicon-chip-tag, .tag-badge {
    font-size: 0.75rem;
  }
  .lexicon-chip-tone, .lexicon-tone-badge {
    font-size: 0.75rem;
    font-weight: 600;
  }
  .lexicon-chip-type, .lexicon-word-card-type {
    font-size: 0.75rem;
    text-transform: lowercase;
    color: var(--muted);
  }
  .lexicon-chip-owner-mine, .lexicon-owner-badge-mine {
    margin-top: 0.35rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text);
  }
  .lexicon-chip-owner-tutor, .lexicon-owner-badge-tutor {
    margin-top: 0.35rem;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--color-info-bg);
  }
  .lexicon-meta-dl, .lexicon-detail-dl {
    margin: 0.75rem 0;
  }
  .lexicon-meta-dl dt, .lexicon-detail-dl dt {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--muted);
    margin-top: 0.5rem;
  }
  .lexicon-meta-dl dt:first-child, .lexicon-detail-dl dt:first-child {
    margin-top: 0;
  }
  .lexicon-meta-dl dd, .lexicon-detail-dl dd {
    margin: 0.15rem 0 0;
  }
  .lexicon-detail-example {
    margin: 0.5rem 0 0;
    padding: 0.65rem 0.85rem;
    border-left: 3px solid var(--accent, #2563eb);
    background: var(--surface-muted, #f5f7fa);
    font-size: 0.95rem;
  }
  .lexicon-detail-audio audio {
    width: 100%;
    max-width: 320px;
  }
  .lexicon-action-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: stretch;
  }
  .lexicon-action-group .btn, .lexicon-action-group .inline-form {
    margin-top: 0;
  }
  .lexicon-action-group-study {
    padding: 0.75rem;
    border-radius: 10px;
    background: var(--bg);
    border: 1px solid var(--border);
  }
  .lexicon-action-group-manage {
    margin-top: 0.5rem;
  }
  .lexicon-action-group-destructive {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px dashed var(--border);
  }
  .lexicon-btn-destructive {
    color: #b42318;
  }
  .lexicon-action-group-form {
    margin-top: 1.25rem;
  }
  .lexicon-form-section.lexicon-section {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
  }
  .lexicon-form-section + .lexicon-form-section {
    margin-top: 0;
  }
  .lexicon-empty {
    text-align: center;
    padding: 2rem 1rem;
    margin-top: 1rem;
    border: 1px dashed var(--border);
    border-radius: 10px;
    background: var(--bg);
  }
  .lexicon-empty .lexicon-action-group {
    justify-content: center;
    margin-top: 1rem;
  }
  .lexicon-empty .btn {
    min-height: 44px;
  }
  .lexicon-form-section-optional legend .optional {
    font-weight: normal;
    font-size: 0.9rem;
  }
  .lexicon-chip.lexicon-status-review, .lexicon-status-badge.lexicon-status-review {
    border-color: #c4d4e8;
    color: #3d5a80;
  }
  .lexicon-chip.lexicon-status-mastered, .lexicon-status-badge.lexicon-status-mastered {
    border-color: #c8e6c9;
    color: #2e6b32;
  }
  .lexicon-chip.lexicon-status-learning, .lexicon-status-badge.lexicon-status-learning {
    border-color: #e8dfc4;
    color: #7a6520;
  }
  .lexicon-practice-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.25rem;
  }
  .lexicon-practice-form input, .lexicon-practice-form select, .lexicon-practice-form textarea {
    width: 100%;
    min-height: 44px;
    font-size: 16px;
    margin-bottom: 0.75rem;
  }
  .lexicon-practice-form.lexicon-action-group-study {
    display: block;
  }
  .lexicon-section-filters {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
  }
  .lexicon-review-filter label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.25rem;
  }
  .lexicon-review-filter select {
    width: 100%;
    min-height: 44px;
    font-size: 16px;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
  }
  .lexicon-review-list {
    list-style: none;
    padding: 0;
    margin: 0.75rem 0 0;
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    background: var(--card);
  }
  .lexicon-review-item {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
  }
  .lexicon-review-item:last-child {
    border-bottom: none;
  }
  .lexicon-form-section-optional {
    background: var(--bg);
  }
  .btn-compact {
    min-height: 36px;
    padding: 0.35rem 0.65rem;
    font-size: 0.85rem;
  }
  .lexicon-analytics-card > .lexicon-section-title {
    margin-top: 0;
  }
  @media (max-width: 640px) {
    .lexicon-action-group-form, .lexicon-action-group-study, .lexicon-empty .lexicon-action-group {
      flex-direction: column;
    }
    .lexicon-action-group-form .btn, .lexicon-action-group-study .btn, .lexicon-empty .lexicon-action-group .btn {
      width: 100%;
      text-align: center;
    }
  }
  .lexicon-bank-toolbar {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin: 0 0 1rem;
  }
  .lexicon-bank-toolbar-primary {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
  .lexicon-bank-toolbar-primary .btn-primary {
    width: 100%;
    margin-top: 0;
    text-align: center;
  }
  .lexicon-bank-more summary {
    cursor: pointer;
    list-style: none;
    margin-top: 0;
  }
  .lexicon-bank-more summary::-webkit-details-marker {
    display: none;
  }
  .lexicon-bank-more summary .btn {
    width: 100%;
    margin-top: 0;
  }
  .lexicon-bank-more-menu {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.5rem;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
  }
  .lexicon-bank-more-menu .btn {
    width: 100%;
    margin-top: 0;
    text-align: center;
  }
  .lexicon-bank-search {
    margin: 0 0 1rem;
  }
  .lexicon-bank-search-row {
    display: flex;
    gap: 0.5rem;
    align-items: stretch;
  }
  .lexicon-bank-search-row input[type="search"] {
    flex: 1;
    min-width: 0;
    min-height: 44px;
    font-size: 16px;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
  }
  .lexicon-bank-search-row .btn {
    margin-top: 0;
    flex-shrink: 0;
    min-height: 44px;
  }
  .lexicon-bank-filters-details {
    margin-top: 0.75rem;
  }
  .lexicon-bank-filters-details > summary {
    cursor: pointer;
    font-weight: 600;
    padding: 0.5rem 0;
    list-style: none;
  }
  .lexicon-bank-filters-details > summary::-webkit-details-marker {
    display: none;
  }
  .lexicon-bank-filters-body {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 0.75rem 0;
  }
  .lexicon-bank-filters-body label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
  }
  .lexicon-bank-filters-body select {
    width: 100%;
    min-height: 44px;
    font-size: 16px;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
  }
  .lexicon-bank-filters-body .filter-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-height: 44px;
    font-weight: normal;
  }
  .lexicon-bank-filters-body .filter-checkbox input {
    width: 1.1rem;
    height: 1.1rem;
  }
  .lexicon-bank-filters-body .btn {
    margin-top: 0;
    width: 100%;
  }
  .lexicon-bank-active-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 1rem;
  }
  .lexicon-bank-filter-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.65rem;
    font-size: 0.85rem;
    border-radius: 999px;
    background: var(--color-info-bg);
    color: var(--color-text-main);
    text-decoration: none;
    border: 1px solid var(--border);
  }
  .lexicon-bank-filter-chip:hover {
    text-decoration: line-through;
  }
  .lexicon-bank-clear-filters {
    font-size: 0.85rem;
    color: var(--primary);
  }
  .lexicon-bank-sort-mobile {
    margin-bottom: 1rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: flex-end;
  }
  .lexicon-bank-sort-mobile > label:first-of-type {
    width: 100%;
  }
  .lexicon-bank-sort-mobile select {
    flex: 1;
    min-width: 0;
    min-height: 44px;
    font-size: 16px;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
  }
  @media (max-width: 640px) {
    .lexicon-bulk-toolbar {
      flex-direction: column;
      align-items: stretch;
    }
    .lexicon-bulk-toolbar select, .lexicon-bulk-toolbar input[type="text"] {
      width: 100%;
      min-height: 44px;
      font-size: 16px;
    }
    .lexicon-bulk-toolbar .btn {
      width: 100%;
      margin-top: 0;
    }
  }
  .lexicon-bank-card-view {
    display: block;
  }
  .lexicon-bank-table-view {
    display: none;
  }
  .lexicon-word-card-list {
    list-style: none;
    padding: 0;
    margin: 0;
  }
  .lexicon-word-card {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 0.75rem;
    background: var(--card);
  }
  .lexicon-word-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.35rem;
  }
  .lexicon-word-card-title {
    flex: 1;
    min-width: 0;
  }
  .lexicon-word-card-vi {
    font-weight: 700;
    font-size: 1.05rem;
    word-break: break-word;
  }
  .lexicon-word-card-type {
    display: inline-block;
    margin-top: 0.25rem;
    padding: 0.1rem 0.45rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 4px;
    background: var(--bg);
    color: var(--muted);
  }
  .lexicon-word-card-check {
    flex-shrink: 0;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .lexicon-word-card-check input {
    width: 1.25rem;
    height: 1.25rem;
  }
  .lexicon-word-card-en {
    color: var(--text);
    word-break: break-word;
    margin-bottom: 0.5rem;
  }
  .lexicon-word-card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
  }
  .lexicon-word-card-actions a, .lexicon-word-card-actions .link-button {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    padding: 0 0.25rem;
  }
  .lexicon-bank-bulk-mobile {
    margin-bottom: 1rem;
  }
  @media (min-width: 641px) {
    .lexicon-bank-toolbar {
      flex-direction: row;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
    }
    .lexicon-bank-toolbar-primary {
      flex-direction: row;
      align-items: center;
      flex: 1;
    }
    .lexicon-bank-toolbar-primary .btn-primary {
      width: auto;
    }
    .lexicon-bank-more > summary {
      display: none;
    }
    .lexicon-bank-more-menu {
      flex-direction: row;
      flex-wrap: wrap;
      align-items: center;
      border: none;
      padding: 0;
      margin: 0;
      background: transparent;
      gap: 0.5rem;
    }
    .lexicon-bank-more-menu .btn {
      width: auto;
    }
    .lexicon-bank-search-row input[type="search"] {
      max-width: 24rem;
    }
    .lexicon-bank-filters-details > summary {
      display: none;
    }
    .lexicon-bank-filters-body {
      flex-direction: row;
      flex-wrap: wrap;
      align-items: flex-end;
      gap: 0.75rem;
    }
    .lexicon-bank-filters-body > div {
      flex: 0 1 auto;
    }
    .lexicon-bank-filters-body select {
      width: auto;
      min-width: 8rem;
    }
    .lexicon-bank-filters-body .btn {
      width: auto;
    }
    .lexicon-bank-sort-mobile {
      display: none;
    }
    .lexicon-bank-card-view {
      display: none;
    }
    .lexicon-bank-table-view {
      display: block;
    }
    .lexicon-bank-bulk-mobile {
      display: none;
    }
  }
  .lexicon-learner-bank .lexicon-bank-table-view {
    display: none;
  }
  .lexicon-learner-bank .lexicon-bank-card-view {
    display: block;
  }
  .lexicon-learner-bank .lexicon-hub-detail {
    display: none;
  }
  .lexicon-learner-bank .lexicon-hub-layout-explore {
    display: block;
  }
  .lexicon-learner-bank .lexicon-bank-toolbar-primary .btn-primary, .lexicon-learner-bank .lexicon-bank-toolbar-primary .btn--primary {
    width: 100%;
  }
  .lexicon-learner-bank .lexicon-bank-toolbar-primary .btn-secondary, .lexicon-learner-bank .lexicon-bank-toolbar-primary .btn--secondary {
    width: 100%;
  }
  .lexicon-tutor-bank .lexicon-bank-toolbar-primary .btn-primary, .lexicon-tutor-bank .lexicon-bank-toolbar-primary .btn--primary {
    width: 100%;
  }
  .lexicon-tutor-bank .lexicon-bank-toolbar-primary .btn-secondary, .lexicon-tutor-bank .lexicon-bank-toolbar-primary .btn--secondary {
    width: 100%;
  }
  .app-main .lexicon-card.lexicon-page {
    margin: 0;
    box-shadow: var(--shadow-xs);
  }
  .app-main .lexicon-card.lexicon-page > .lexicon-page-toolbar:first-child, .app-main .lexicon-card.lexicon-page > .lexicon-hub-layout:first-child {
    margin-top: 0;
  }
  .app-main .stack-4 > .lexicon-card + .lexicon-card {
    margin-top: var(--space-4);
  }
  .lexicon-owner-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0.75rem 0 0;
  }
  .lexicon-owner-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.35rem 0.85rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--text);
    text-decoration: none;
  }
  .lexicon-owner-chip.is-active {
    background: var(--color-info-bg);
    border-color: var(--primary);
    color: var(--primary);
  }
  .lexicon-owner-badge {
    display: inline-block;
    margin-top: 0.35rem;
    padding: 0.15rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 999px;
    border: 1px solid var(--border);
  }
  .lexicon-owner-badge-mine {
    background: var(--bg);
    color: var(--text);
  }
  .lexicon-owner-badge-tutor {
    background: var(--color-info-bg);
    color: var(--muted);
  }
  .lexicon-word-card-learner .lexicon-word-card-en {
    margin-bottom: 0.25rem;
  }
  .lexicon-word-card-details {
    margin-top: 0.65rem;
  }
  .lexicon-word-card-details > summary {
    cursor: pointer;
    list-style: none;
    min-height: 44px;
    display: flex;
    align-items: center;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--primary);
  }
  .lexicon-word-card-details > summary::-webkit-details-marker {
    display: none;
  }
  .lexicon-word-card-details-body {
    padding-top: 0.5rem;
  }
  .lexicon-word-card-details .lexicon-word-card-actions {
    border-top: none;
    padding-top: 0;
    margin-top: 0.75rem;
  }
  .lexicon-choose-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }
  .lexicon-choose-card {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem;
    background: var(--card);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }
  .lexicon-choose-card-title {
    margin: 0;
    font-size: 1.1rem;
  }
  .lexicon-choose-card-meta {
    margin: 0.25rem 0 0;
  }
  .lexicon-choose-card-action {
    width: 100%;
    margin-top: 0;
    text-align: center;
    min-height: 44px;
  }
  .lexicon-word-card-romanization {
    font-size: 0.95rem;
    color: var(--muted, #666);
    margin-bottom: 0.35rem;
  }
  .lexicon-word-card-example {
    margin: 0.75rem 0;
    padding: 0.65rem 0.85rem;
    border-left: 3px solid var(--accent, #2563eb);
    background: var(--surface-muted, #f5f7fa);
    font-size: 0.95rem;
  }
  .lexicon-word-card-audio audio {
    width: 100%;
    max-width: 280px;
  }
  .lexicon-study-page .lexicon-study-steps {
    list-style: none;
    margin: 1rem 0;
    padding: 0;
    display: grid;
    gap: 0.5rem;
  }
  .lexicon-study-step {
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--border, #dde3ea);
    border-radius: 8px;
    font-size: 0.95rem;
  }
  .lexicon-study-step-done {
    opacity: 0.7;
    background: var(--surface-muted, #f5f7fa);
  }
  .lexicon-study-step-label {
    display: inline-block;
    font-weight: 600;
    margin-right: 0.35rem;
  }
  .lexicon-study-instructions {
    font-size: 1rem;
    margin: 0.75rem 0;
  }
  .lexicon-tone-reference {
    margin-bottom: 1rem;
  }
  .lexicon-study-card-list {
    list-style: none;
    margin: 1rem 0 0;
    padding: 0;
    display: grid;
    gap: 0.85rem;
  }
  .lexicon-study-card {
    padding: 1rem;
    border: 1px solid var(--border, #dde3ea);
    border-radius: 10px;
    background: #fff;
  }
  .lexicon-study-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.5rem;
  }
  .lexicon-study-card-vi {
    font-size: 1.35rem;
    font-weight: 600;
    line-height: 1.3;
  }
  .lexicon-tone-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.15rem 0.45rem;
    border-radius: 999px;
    background: var(--surface-muted, #eef2f7);
    color: var(--muted, #555);
    white-space: nowrap;
  }
  .lexicon-study-card-romanization {
    margin-top: 0.25rem;
    color: var(--muted, #666);
    font-size: 0.95rem;
  }
  .lexicon-study-card-en {
    margin-top: 0.35rem;
    font-size: 1.05rem;
  }
  .lexicon-study-card-example {
    margin: 0.75rem 0 0;
    padding: 0.65rem 0.85rem;
    border-left: 3px solid var(--accent, #2563eb);
    background: var(--surface-muted, #f5f7fa);
    font-size: 0.95rem;
  }
  .lexicon-study-card-audio {
    margin-top: 0.75rem;
  }
  .lexicon-study-card-audio audio {
    width: 100%;
    max-width: 320px;
  }
  .lexicon-study-card-notes {
    margin: 0.65rem 0 0;
    font-size: 0.9rem;
  }
  .lexicon-study-success-banner {
    margin: 1rem 0;
    padding: 1rem;
    border-radius: 10px;
    background: var(--color-success-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text-main);
  }
  .lexicon-study-success-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
  }
  .lexicon-study-actions {
    margin-top: 1.25rem;
  }
  .lexicon-hub-layout {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
  }
  .lexicon-hub-list {
    min-width: 0;
  }
  .lexicon-hub-detail {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem;
    background: var(--bg);
  }
  .lexicon-detail-empty {
    padding: 2rem 1rem;
    text-align: center;
  }
  .lexicon-bank-filters-visible {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.65rem;
    margin-top: 0.75rem;
  }
  .lexicon-bank-filters-visible label {
    font-size: 0.85rem;
    font-weight: 600;
  }
  .lexicon-bank-filters-visible select {
    width: 100%;
    min-height: 40px;
    font-size: 16px;
  }
  .lexicon-entry-row-wrap {
    display: flex;
    align-items: stretch;
    border-bottom: 1px solid var(--border);
  }
  .lexicon-entry-row-wrap:last-child {
    border-bottom: none;
  }
  .lexicon-entry-row-wrap.is-selected .lexicon-entry-row {
    background: var(--bg);
  }
  .lexicon-entry-check {
    display: flex;
    align-items: center;
    padding: 0 0.5rem 0 0.75rem;
    flex-shrink: 0;
  }
  .lexicon-entry-row {
    flex: 1;
    border-bottom: none;
  }
  .lexicon-entry-list .lexicon-entry-row-wrap .lexicon-entry-row {
    border-bottom: none;
  }
  .lexicon-entry-list {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    background: var(--card);
  }
  .lexicon-entry-row {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.65rem 0.85rem;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    color: inherit;
    transition: background 0.12s ease;
  }
  .lexicon-entry-row:last-child {
    border-bottom: none;
  }
  .lexicon-entry-row:hover, .lexicon-entry-row.is-selected {
    background: var(--bg);
  }
  .lexicon-entry-row-main {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
  }
  .lexicon-entry-row-vi {
    font-weight: 600;
  }
  .lexicon-entry-row-gloss {
    font-size: 0.9rem;
    color: var(--muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .lexicon-entry-row-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.35rem;
    flex-shrink: 0;
  }
  .lexicon-lesson-badge {
    font-size: 0.75rem;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--muted);
    max-width: 6rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .lexicon-status-badge {
    font-size: 0.75rem;
    padding: 0.1rem 0.45rem;
    border-radius: 4px;
    border: 1px solid var(--border);
    color: var(--muted);
  }
  .lexicon-status-review {
    border-color: #c4d4e8;
    color: #3d5a80;
  }
  .lexicon-status-mastered {
    border-color: #c8e6c9;
    color: #2e6b32;
  }
  .lexicon-status-learning {
    border-color: #e8dfc4;
    color: #7a6520;
  }
  .lexicon-due-marker {
    color: var(--primary);
    font-size: 0.7rem;
  }
  .lexicon-difficult-marker {
    color: #9a4520;
    font-weight: 700;
  }
  .lexicon-detail-panel h2, .lexicon-detail-title {
    margin: 0 0 0.35rem;
    font-size: 1.35rem;
  }
  .lexicon-form-section {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.75rem 1rem 1rem;
    margin-bottom: 1rem;
  }
  .lexicon-form-section legend {
    font-weight: 600;
    padding: 0 0.25rem;
  }
  .lexicon-analytics-card .lexicon-analytics-block {
    margin-top: 0;
  }
  .lexicon-entry-picker-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
  }
  .lexicon-entry-picker-list li {
    padding: 0.35rem 0;
    border-bottom: 1px solid var(--border);
  }
  @media (min-width: 900px) {
    .lexicon-hub-layout {
      flex-direction: row;
      align-items: flex-start;
    }
    .lexicon-hub-list {
      flex: 1 1 55%;
    }
    .lexicon-hub-detail {
      flex: 1 1 45%;
      position: sticky;
      top: 1rem;
      max-height: calc(100vh - 6rem);
      overflow-y: auto;
    }
    .lexicon-bank-filters-visible {
      grid-template-columns: repeat(3, 1fr);
    }
    .lexicon-bank-toolbar-primary {
      flex-direction: row;
    }
    .lexicon-bank-toolbar-primary .btn-primary {
      width: auto;
    }
  }
  @media (max-width: 899px) {
    .lexicon-hub-detail {
      display: none;
    }
    .lexicon-entry-row {
      cursor: pointer;
    }
  }
}
.admin-worksheet-editor {
  max-width: 52rem;
  margin: 1.5rem 0;
  color: var(--body-fg);
  --card: var(--darkened-bg);
  --border: var(--border-color);
  --muted: var(--body-fg);
  --text: var(--body-fg);
  --color-surface: var(--darkened-bg);
  --color-text-main: var(--body-fg);
  --color-text-muted: var(--body-fg);
}
.admin-worksheet-editor h2 {
  font-size: 1.1rem;
  margin: 0 0 0.75rem;
  color: var(--body-fg);
}
.admin-worksheet-editor .admin-worksheet-meta {
  margin-bottom: 1rem;
  color: var(--body-quiet-color);
}
.admin-worksheet-editor .admin-worksheet-meta p {
  margin: 0.25rem 0;
}
.admin-worksheet-editor .admin-worksheet-meta strong {
  color: var(--body-fg);
}
.admin-worksheet-editor .admin-worksheet-intro label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--body-fg);
}
.admin-worksheet-editor .admin-worksheet-intro textarea {
  width: 100%;
  min-height: 5rem;
  font-family: inherit;
  margin-bottom: 1.25rem;
}
.admin-worksheet-editor textarea, .admin-worksheet-editor input[type="text"] {
  background: var(--body-bg);
  color: var(--body-fg);
  border: 1px solid var(--border-color);
}
.admin-worksheet-editor .admin-worksheet-rows {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.admin-worksheet-editor .admin-worksheet-row {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  background: var(--darkened-bg);
  color: var(--body-fg);
}
.admin-worksheet-editor .admin-worksheet-row-preview {
  margin-bottom: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px dashed var(--border-color);
  color: var(--body-fg);
  --card: var(--darkened-bg);
  --border: var(--border-color);
  --muted: var(--body-fg);
  --text: var(--body-fg);
}
.admin-worksheet-editor .admin-worksheet-row-preview .worksheet-point-card, .admin-worksheet-editor .admin-worksheet-row-preview .worksheet-group.worksheet-point-card {
  background: var(--darkened-bg);
  background-color: var(--darkened-bg);
  border-color: var(--border-color);
  color: var(--body-fg);
}
.admin-worksheet-editor .admin-worksheet-row-preview :is( .worksheet-item-prompt, .worksheet-group-stem, .worksheet-blank-prompt, .worksheet-inline-line, .worksheet-inline-prefix, .worksheet-inline-suffix, p ) {
  color: var(--body-fg);
}
.admin-worksheet-editor .admin-worksheet-row-preview .worksheet-inline-blank-placeholder {
  display: inline-block;
  min-width: 5rem;
  border-bottom: 2px solid var(--body-quiet-color);
  color: transparent;
  user-select: none;
}
.admin-worksheet-editor .admin-worksheet-row-edit label, .admin-worksheet-editor .admin-worksheet-blank-line label {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
  color: var(--body-fg);
}
.admin-worksheet-editor .admin-worksheet-row-edit strong, .admin-worksheet-editor .admin-worksheet-row-edit p {
  color: var(--body-fg);
}
.admin-worksheet-editor .admin-worksheet-row-edit textarea, .admin-worksheet-editor .admin-worksheet-row-edit input[type="text"] {
  width: 100%;
  font-family: inherit;
  margin-bottom: 0.5rem;
}
.admin-worksheet-editor .admin-worksheet-row-actions {
  margin-top: 0.5rem;
}
.admin-worksheet-editor .admin-worksheet-row-actions button {
  font-size: 0.85rem;
}
.admin-worksheet-editor .admin-worksheet-toolbar {
  margin: 1rem 0;
}
.admin-worksheet-editor .admin-worksheet-toolbar button {
  margin-right: 0.5rem;
}
.admin-worksheet-editor .admin-worksheet-hint {
  color: var(--body-quiet-color);
  font-size: 0.85rem;
  margin: 0.5rem 0 1rem;
}
.admin-worksheet-editor .admin-worksheet-blank-line {
  margin-left: 1rem;
}
.admin-worksheet-editor .admin-worksheet-blank-line + .admin-worksheet-blank-line {
  margin-top: 0.35rem;
}
@property --tw-rotate-x {
  syntax: "*";
  inherits: false;
  initial-value: rotateX(0);
}
@property --tw-rotate-y {
  syntax: "*";
  inherits: false;
  initial-value: rotateY(0);
}
@property --tw-rotate-z {
  syntax: "*";
  inherits: false;
  initial-value: rotateZ(0);
}
@property --tw-skew-x {
  syntax: "*";
  inherits: false;
  initial-value: skewX(0);
}
@property --tw-skew-y {
  syntax: "*";
  inherits: false;
  initial-value: skewY(0);
}
@property --tw-border-style {
  syntax: "*";
  inherits: false;
  initial-value: solid;
}
@property --tw-outline-style {
  syntax: "*";
  inherits: false;
  initial-value: solid;
}
@property --tw-blur {
  syntax: "*";
  inherits: false;
}
@property --tw-brightness {
  syntax: "*";
  inherits: false;
}
@property --tw-contrast {
  syntax: "*";
  inherits: false;
}
@property --tw-grayscale {
  syntax: "*";
  inherits: false;
}
@property --tw-hue-rotate {
  syntax: "*";
  inherits: false;
}
@property --tw-invert {
  syntax: "*";
  inherits: false;
}
@property --tw-opacity {
  syntax: "*";
  inherits: false;
}
@property --tw-saturate {
  syntax: "*";
  inherits: false;
}
@property --tw-sepia {
  syntax: "*";
  inherits: false;
}
@property --tw-drop-shadow {
  syntax: "*";
  inherits: false;
}
@property --tw-drop-shadow-color {
  syntax: "*";
  inherits: false;
}
@property --tw-drop-shadow-alpha {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 100%;
}
@property --tw-drop-shadow-size {
  syntax: "*";
  inherits: false;
}
@layer properties {
  @supports ((-webkit-hyphens: none) and (not (margin-trim: inline))) or ((-moz-orient: inline) and (not (color:rgb(from red r g b)))) {
    *, ::before, ::after, ::backdrop {
      --tw-rotate-x: rotateX(0);
      --tw-rotate-y: rotateY(0);
      --tw-rotate-z: rotateZ(0);
      --tw-skew-x: skewX(0);
      --tw-skew-y: skewY(0);
      --tw-border-style: solid;
      --tw-outline-style: solid;
      --tw-blur: initial;
      --tw-brightness: initial;
      --tw-contrast: initial;
      --tw-grayscale: initial;
      --tw-hue-rotate: initial;
      --tw-invert: initial;
      --tw-opacity: initial;
      --tw-saturate: initial;
      --tw-sepia: initial;
      --tw-drop-shadow: initial;
      --tw-drop-shadow-color: initial;
      --tw-drop-shadow-alpha: 100%;
      --tw-drop-shadow-size: initial;
    }
  }
}