:root {
  color-scheme: light;
  --md-primary: #00639b;
  --md-primary-container: #d0e4ff;
  --md-on-primary: #ffffff;
  --md-surface: #f8fbff;
  --md-surface-container: #ecf1f8;
  --md-outline: #bec8d4;
  --md-text: #17212b;
  --md-text-muted: #4a5b70;
  --md-shadow-1: 0 1px 2px rgba(11, 29, 49, 0.08), 0 2px 8px rgba(11, 29, 49, 0.06);
  --md-shadow-2: 0 8px 26px rgba(18, 40, 65, 0.1);
  --bs-primary: var(--md-primary);
  --bs-primary-rgb: 0, 99, 155;
}

* {
  font-family: "Roboto Flex", "Segoe UI", sans-serif;
}

.material-symbols-outlined {
  display: inline-block;
  font-family: "Material Symbols Outlined";
  font-size: 1.15rem;
  font-style: normal;
  font-weight: normal;
  letter-spacing: normal;
  line-height: 1;
  text-transform: none;
  white-space: nowrap;
  word-wrap: normal;
}

body.app-shell {
  position: relative;
  background:
    radial-gradient(circle at 12% 10%, rgba(208, 228, 255, 0.8), transparent 28%),
    radial-gradient(circle at 85% 2%, rgba(228, 236, 255, 0.9), transparent 36%),
    linear-gradient(180deg, #f4f8ff 0%, var(--md-surface) 55%, #eef3fb 100%);
  color: var(--md-text);
  min-height: 100vh;
}

.md-appbar {
  background: rgba(248, 251, 255, 0.88);
  border-bottom: 1px solid var(--md-outline);
  backdrop-filter: blur(12px);
}

.md-appbar .navbar-brand,
.md-appbar .material-symbols-outlined {
  color: var(--md-primary);
}

.md-brand-logo {
  display: block;
  height: 44px;
  max-width: 100%;
  width: auto;
}

.md-appbar .navbar-toggler {
  border-color: var(--md-outline);
}

.md-appbar .navbar-toggler-icon {
  filter: saturate(0) brightness(0.2);
}

.md-nav-link {
  border-radius: 999px;
  color: var(--md-text-muted);
  font-weight: 560;
  margin-right: 0.3rem;
  padding: 0.42rem 0.9rem;
}

.md-nav-link:hover,
.md-nav-link:focus {
  background: var(--md-primary-container);
  color: #003456;
}

.md-user-name {
  color: var(--md-text-muted);
  font-size: 0.92rem;
  font-weight: 560;
}

.card {
  border: 1px solid rgba(190, 200, 212, 0.45);
  border-radius: 1.4rem;
  box-shadow: var(--md-shadow-1);
}

.card-header {
  border-radius: 1.4rem 1.4rem 0 0;
}

.stat-card {
  min-height: 140px;
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.95), rgba(236, 241, 248, 0.88));
}

.btn {
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.015em;
}

.btn-icon {
  height: 2rem;
  padding: 0;
  width: 2rem;
}

.btn-icon svg {
  flex: 0 0 auto;
  height: 1rem;
  width: 1rem;
}

.list-actions {
  row-gap: 0.35rem;
}

.btn-primary {
  background: linear-gradient(120deg, #00639b, #115e95);
  border-color: transparent;
  box-shadow: 0 6px 14px rgba(0, 99, 155, 0.26);
}

.btn-primary:hover,
.btn-primary:focus {
  background: linear-gradient(120deg, #005889, #0e557f);
}

.btn-outline-primary {
  border-color: rgba(0, 99, 155, 0.45);
  color: #004d79;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background: var(--md-primary-container);
  border-color: rgba(0, 99, 155, 0.1);
  color: #003a5c;
}

.table > :not(caption) > * > * {
  padding: 0.95rem 0.8rem;
}

.table-hover tbody tr:hover {
  background: rgba(208, 228, 255, 0.32);
}

.table-sort-button {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: 999px;
  color: inherit;
  cursor: pointer;
  display: inline-flex;
  font: inherit;
  font-weight: 600;
  gap: 0.4rem;
  padding: 0.15rem 0.5rem;
  transition: background-color 150ms ease, color 150ms ease;
}

.table-sort-button:hover,
.table-sort-button:focus-visible {
  background: var(--md-primary-container);
  color: #003a5c;
  outline: none;
}

.table-sort-button .sort-indicator::before {
  color: var(--md-text-muted);
  content: "↕";
  display: inline-block;
  font-size: 0.78rem;
  line-height: 1;
  transform: translateY(-1px);
}

.table-sort-button.is-active[data-sort-direction="asc"] .sort-indicator::before {
  color: var(--md-primary);
  content: "↑";
}

.table-sort-button.is-active[data-sort-direction="desc"] .sort-indicator::before {
  color: var(--md-primary);
  content: "↓";
}

.vocabulary-audio-player {
  max-width: 18rem;
  width: 100%;
}

.vocabulary-audio-player--compact {
  max-width: 12rem;
}

.vocabulary-mobile-recall {
  align-items: center;
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.vocabulary-mobile-recall__label {
  margin-right: 0;
}

.learning-verb-actions .btn {
  box-shadow: none;
  font-size: 0.96rem;
  min-height: 2.55rem;
  padding: 0.5rem 1rem;
}

.learning-verb-actions .btn-outline-primary {
  background: rgba(255, 255, 255, 0.72);
}

.learning-verb-actions .btn-primary {
  background: linear-gradient(120deg, #0b679f, #0d5f91);
}

#vocabulary-create-form {
  scroll-margin-top: 6rem;
}

.badge.text-bg-light {
  background-color: #dde9f8 !important;
  color: #21425d !important;
}

.dashboard-hero {
  background: linear-gradient(125deg, rgba(255, 255, 255, 0.9), rgba(226, 238, 254, 0.72));
  border: 1px solid rgba(190, 200, 212, 0.45);
  border-radius: 1.6rem;
  box-shadow: var(--md-shadow-2);
  padding: 1.25rem 1.35rem;
}

.material-idea-grid .card {
  background: linear-gradient(150deg, #ffffff, #f4f8ff);
}

.material-idea-grid h3 {
  color: #003e64;
  font-size: 1.05rem;
}

.material-idea-grid p {
  color: var(--md-text-muted);
  font-size: 0.95rem;
}

.idea-chip {
  background: var(--md-primary-container);
  border-radius: 999px;
  color: #003a5b;
  display: inline-flex;
  font-size: 0.82rem;
  font-weight: 640;
  padding: 0.26rem 0.7rem;
}

.password-strength {
  background: #dde5ef;
  border-radius: 999px;
  height: 0.45rem;
  overflow: hidden;
}

.password-strength__bar {
  background: #9aa8bb;
  border-radius: inherit;
  height: 100%;
  transition: width 150ms ease, background-color 150ms ease;
  width: 0;
}

.password-strength__bar.is-weak {
  background: #c34848;
}

.password-strength__bar.is-medium {
  background: #c6872a;
}

.password-strength__bar.is-strong {
  background: #21824b;
}

.learning-mode-toolbar {
  align-items: end;
  display: grid;
  gap: 0.6rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.learning-mode-field {
  min-width: 0;
}

.learning-mode-label {
  margin-bottom: 0.35rem;
}

.learning-mode-action .btn {
  white-space: nowrap;
}

.learning-answer-actions {
  align-items: center;
}

.learning-edit-inline {
  white-space: nowrap;
}

.learning-audio-block {
  align-items: flex-start;
  background: rgba(208, 228, 255, 0.28);
  border: 1px solid rgba(190, 200, 212, 0.55);
  border-radius: 0.9rem;
  display: inline-flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.55rem 0.7rem;
}

.verb-coach-card {
  margin-left: auto;
  margin-right: auto;
  max-width: 960px;
}

.verb-coach-card .card-body {
  padding: 1.1rem 1.2rem;
}

.verb-coach-toolbar .form-label {
  margin-bottom: 0.35rem;
}

.verb-coach-toolbar-inline {
  align-items: end;
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.coach-session-anchor {
  scroll-margin-top: 6.5rem;
}

.verb-coach-repeat-wrap {
  align-items: center;
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  margin: 0;
  min-height: 3rem;
  padding: 0;
}

.verb-coach-repeat-wrap .form-check-input {
  cursor: pointer;
  height: 1.35rem;
  margin-top: 0;
  width: 2.35rem;
}

.verb-coach-repeat-wrap .form-check-label {
  cursor: pointer;
  font-weight: 600;
  white-space: nowrap;
}

.verb-coach-self-actions {
  display: grid;
  gap: 0.55rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.verb-coach-self-actions > :first-child {
  grid-column: 1 / -1;
}

.verbs-table {
  font-size: 0.93rem;
}

.verbs-table thead th {
  background: var(--md-surface);
  position: sticky;
  top: 0;
  z-index: 4;
}

.verbs-table .verbs-actions-col {
  background: var(--md-surface);
  position: sticky;
  right: 0;
  z-index: 2;
}

.verbs-table thead .verbs-actions-col {
  z-index: 3;
}

.verbs-table tbody .verbs-actions-col {
  box-shadow: -8px 0 10px -10px rgba(23, 33, 43, 0.45);
  white-space: nowrap;
}

.verbs-language-dialog {
  margin: 0 auto;
  max-width: 780px;
}

.language-select-btn {
  background: rgba(255, 255, 255, 0.92);
  border: 2px solid rgba(0, 99, 155, 0.45);
  border-radius: 999px;
  color: #005889;
  height: 2.4rem;
  width: 2.4rem;
}

.language-select-btn:hover,
.language-select-btn:focus {
  background: #eaf4ff;
  border-color: #00639b;
  color: #004d79;
}

.language-select-btn.is-selected {
  background: rgba(25, 135, 84, 0.12);
  border-color: #198754;
  color: #157347;
}

.language-manage-btn {
  border-color: rgba(0, 99, 155, 0.45);
  color: #004d79;
  height: 2.1rem;
  width: 2.1rem;
}

.language-manage-btn:hover,
.language-manage-btn:focus {
  background: var(--md-primary-container);
  border-color: rgba(0, 99, 155, 0.1);
  color: #003a5c;
}

.language-manage-btn.is-selected {
  background: rgba(255, 255, 255, 0.92);
  border-color: rgba(255, 255, 255, 0.65);
  color: #003a5c;
}

.verb-coach-self-actions .btn {
  min-height: 2.8rem;
}

@media (max-width: 992px) {
  .verb-coach-toolbar-inline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .verb-coach-toolbar-inline {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 992px) {
  .verb-coach-header {
    align-items: stretch !important;
    flex-direction: column;
  }

  .verb-coach-header .btn {
    width: 100%;
  }

  .verb-coach-card .h4 {
    font-size: 1.75rem;
    line-height: 1.2;
  }
}

@media (max-width: 768px) {
  .verb-coach-card .card-body {
    padding: 0.95rem 0.9rem;
  }

  .verb-coach-toolbar {
    row-gap: 0.7rem;
  }

  .verb-coach-toolbar .btn {
    min-height: 3rem;
  }

  .verb-coach-card .h4 {
    font-size: 1.55rem;
  }

  .verb-coach-repeat-wrap {
    min-height: 3.2rem;
  }
}

@media (min-width: 992px) {
  .verb-coach-self-actions {
    display: flex;
  }
}

@media (max-width: 1024px) {
  .invite-users-table table {
    min-width: 48rem;
  }

  .invite-actions-cell {
    min-width: 13.5rem;
  }

  .invite-user-actions {
    align-items: stretch;
    flex-direction: column;
    gap: 0.55rem !important;
    min-width: 12.5rem;
    width: 100%;
  }

  .invite-user-actions form {
    width: 100%;
  }

  .invite-user-action-btn {
    border-width: 2px;
    min-height: 3.05rem;
    padding: 0.72rem 1rem;
    font-size: 1.03rem;
    font-weight: 700;
    line-height: 1.2;
    width: 100%;
  }

  .invite-user-actions .text-secondary.small {
    display: block;
    text-align: center;
    width: 100%;
  }
}

@media (max-width: 768px) {
  .invite-users-table table {
    min-width: 42rem;
  }

  .invite-user-action-btn {
    min-height: 3.2rem;
    font-size: 1.06rem;
  }
}

@media (pointer: coarse) {
  .invite-user-action-btn {
    min-height: 3.25rem;
    touch-action: manipulation;
  }
}

@media (max-width: 1024px) {
  .list-actions {
    gap: 0.45rem !important;
  }

  .list-action-btn.btn-icon {
    border-width: 2px;
    height: 2.6rem;
    width: 2.6rem;
  }

  .list-action-btn.btn-icon svg {
    height: 1.2rem;
    width: 1.2rem;
  }
}

@media (max-width: 768px) {
  .list-actions-mobile {
    gap: 0.55rem !important;
  }

  .list-action-btn.btn-icon {
    border-width: 2px;
    box-shadow: 0 4px 10px rgba(0, 65, 101, 0.12);
    height: 3rem;
    width: 3rem;
  }

  .list-action-btn.btn-icon svg {
    height: 1.32rem;
    width: 1.32rem;
  }
}

@media (pointer: coarse) and (max-width: 900px) {
  .list-action-btn.btn-icon {
    height: 3.2rem;
    width: 3.2rem;
  }

  .list-action-btn.btn-icon svg {
    height: 1.42rem;
    width: 1.42rem;
  }
}

.learning-audio-block__label {
  color: var(--md-text-muted);
  font-size: 0.8rem;
  font-weight: 620;
}

.learning-audio-controls {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.learning-audio-toggle {
  min-width: 7rem;
}

.learning-audio-status {
  color: var(--md-text-muted);
  font-size: 0.86rem;
  font-weight: 560;
}

.learning-start-card {
  max-width: 900px;
}

.learning-session-card {
  max-width: 900px;
}

.learning-session-card .h3 {
  font-size: 1.85rem;
  margin-bottom: 0.25rem;
}

.learning-session-card .h4 {
  font-size: 1.7rem;
  line-height: 1.25;
}

.learning-session-card .text-secondary {
  margin-bottom: 0.2rem;
}

.learning-hint-pill {
  align-items: center;
  background: linear-gradient(120deg, rgba(208, 228, 255, 0.5), rgba(235, 243, 255, 0.75));
  border: 1px solid rgba(0, 99, 155, 0.2);
  border-radius: 0.9rem;
  color: #1f364d;
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0.32rem 0.55rem;
}

.learning-hint-pill__label {
  background: rgba(0, 99, 155, 0.12);
  border-radius: 999px;
  color: #004a74;
  font-size: 0.78rem;
  font-weight: 680;
  letter-spacing: 0.01em;
  padding: 0.08rem 0.45rem;
}

.learning-hint-pill__text {
  font-size: 0.93rem;
  font-weight: 520;
  line-height: 1.35;
}

.learning-session-badge {
  font-size: 0.78rem;
  padding: 0.3rem 0.55rem;
}

.learning-session-card .learning-mode-toolbar {
  gap: 0.35rem;
}

.learning-session-card .form-select {
  min-height: calc(1.55em + 0.45rem + calc(var(--bs-border-width) * 2));
  padding: 0.28rem 0.55rem;
}

.learning-session-card .btn-lg {
  font-size: 1.02rem;
  padding: 0.38rem 0.9rem;
}

.learning-session-card .learning-answer-actions {
  gap: 0.35rem !important;
}

.learning-session-card .learning-answer-actions .btn {
  min-height: 2.3rem;
}

.learning-session-card [data-recognition-options] {
  margin-bottom: 0.6rem !important;
}

.learning-session-card [data-recognition-choice] {
  padding-bottom: 0.5rem !important;
  padding-top: 0.5rem !important;
}

.recognition-choice-wrong {
  background: #f3b5bc !important;
  border-color: #b21f2d !important;
  color: #5d0f17 !important;
}

.recognition-choice-wrong:hover,
.recognition-choice-wrong:focus,
.recognition-choice-wrong:active,
.recognition-choice-wrong:disabled {
  background: #f3b5bc !important;
  border-color: #b21f2d !important;
  color: #5d0f17 !important;
  opacity: 1;
}

.vocabulary-editor-card {
  max-width: none;
}

.vocabulary-create-dialog {
  background: #ffffff;
  border: 1px solid rgba(190, 200, 212, 0.85);
  border-radius: 1rem;
  box-shadow: 0 24px 60px rgba(0, 25, 48, 0.28);
  max-height: calc(100vh - 2rem);
  padding: 0;
  width: min(1080px, calc(100% - 1.5rem));
}

.vocabulary-create-dialog::backdrop {
  background: rgba(0, 28, 49, 0.45);
}

.vocabulary-create-dialog__header {
  border-bottom: 1px solid rgba(190, 200, 212, 0.45);
}

.vocabulary-editor-form .form-label {
  margin-bottom: 0.3rem;
}

.vocabulary-editor-form .form-control,
.vocabulary-editor-form .form-select {
  min-height: calc(1.9em + 0.45rem + calc(var(--bs-border-width) * 2));
  padding: 0.35rem 0.55rem;
}

.vocabulary-search-inline {
  align-items: center;
  display: flex;
  gap: 0.65rem;
}

.vocabulary-search-inline .form-label {
  flex: 0 0 auto;
}

.vocabulary-search-inline .form-control {
  flex: 1 1 auto;
}

.audio-recorder {
  background: rgba(208, 228, 255, 0.2);
  border: 1px solid rgba(190, 200, 212, 0.55);
  border-radius: 0.85rem;
  padding: 0.55rem;
}

.audio-recorder-preview {
  max-width: 18rem;
  width: 100%;
}

.audio-recorder-level {
  background: #d7e0ed;
  border-radius: 999px;
  height: 0.42rem;
  overflow: hidden;
}

.audio-recorder-level-fill {
  background: linear-gradient(90deg, #4aa55a 0%, #f0b332 65%, #d14848 100%);
  border-radius: inherit;
  display: block;
  height: 100%;
  transition: width 70ms linear;
  width: 0;
}

.help-page-card {
  max-width: 980px;
}

.help-page-alert {
  border-radius: 0.9rem;
}

.help-content {
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(190, 200, 212, 0.45);
  border-radius: 1rem;
  line-height: 1.55;
  padding: 1rem 1.05rem;
}

.help-content h1,
.help-content h2,
.help-content h3 {
  color: #003e64;
  margin-top: 1.15rem;
}

.help-content h1 {
  font-size: 1.45rem;
}

.help-content h2 {
  font-size: 1.2rem;
}

.help-content h3 {
  font-size: 1.08rem;
}

.help-content h1:first-child,
.help-content h2:first-child,
.help-content h3:first-child {
  margin-top: 0;
}

.help-content p {
  margin-bottom: 0.7rem;
}

.help-content ul,
.help-content ol {
  margin-bottom: 0.85rem;
  padding-left: 1.2rem;
}

.help-content li {
  margin-bottom: 0.35rem;
}

@media (max-width: 1024px) {
  .learning-initial-placement-hint {
    display: none;
  }
}

@media (max-width: 576px) {
  .learning-session-card {
    max-width: 100%;
  }

  .vocabulary-create-dialog {
    max-height: calc(100vh - 0.75rem);
    width: calc(100% - 0.5rem);
  }

  .learning-session-card .card-body {
    padding: 0.8rem !important;
  }

  .vocabulary-search-inline {
    align-items: stretch;
    flex-direction: column;
    gap: 0.35rem;
  }

  .vocabulary-mobile-recall {
    column-gap: 0.3rem;
    font-size: 0.86rem;
    row-gap: 0.2rem;
  }

  .vocabulary-mobile-recall .badge {
    font-size: 0.74rem;
  }

  .learning-session-card .btn-lg {
    font-size: 0.95rem;
  }

  .learning-session-card .h3 {
    font-size: 1.65rem;
  }

  .learning-session-card .h4 {
    font-size: 1.45rem;
  }

  .learning-hint-pill {
    width: 100%;
  }

  .learning-mode-toolbar {
    align-items: center;
    gap: 0.45rem;
  }

  .learning-mode-label {
    display: none;
  }

  .learning-mode-toolbar .form-select {
    font-size: 0.95rem;
    min-height: 2.35rem;
    padding-bottom: 0.4rem;
    padding-top: 0.4rem;
  }

  .learning-mode-action .btn {
    font-size: 0.95rem;
    min-height: 2.35rem;
    padding: 0.42rem 0.75rem;
  }

  .learning-answer-actions .btn {
    font-size: 0.95rem;
    min-height: 2.3rem;
    padding: 0.42rem 0.8rem;
  }

  .learning-edit-inline {
    padding-left: 0.7rem;
    padding-right: 0.7rem;
  }

  .help-content {
    font-size: 0.97rem;
    padding: 0.85rem 0.8rem;
  }

  .help-content h1 {
    font-size: 1.28rem;
  }

  .help-content h2 {
    font-size: 1.12rem;
  }
}