/* Targeted visual fixes, 2026-07-30. */

.lesson-card h2 {
  background: none !important;
  -webkit-background-clip: border-box !important;
  background-clip: border-box !important;
  color: #121b39 !important;
  -webkit-text-fill-color: #121b39 !important;
}

.lessons-hero .lessons-ai-note {
  max-width: 980px;
  margin-top: 8px;
  border: 1px solid rgba(91, 131, 241, 0.12);
  border-radius: 22px;
  background: #eef3ff;
  color: #1f4bb8;
  padding: 16px 18px;
  box-shadow: none;
  font-size: clamp(13px, 1vw, 15px);
  font-weight: 700;
  line-height: 1.55;
}

.lessons-actions .logout-pill {
  box-sizing: border-box !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
  line-height: 1 !important;
}

.lessons-actions .logout-pill,
.trainer-menu button.trainer-chip,
.vocab-close {
  box-sizing: border-box !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  height: 52px !important;
  min-height: 52px !important;
  width: 138px !important;
  min-width: 138px !important;
  border: 2px solid #e1e6f2 !important;
  border-radius: 20px !important;
  background: #ffffff !important;
  color: #121b39 !important;
  padding: 0 18px !important;
  font-size: 14px !important;
  font-weight: 800 !important;
  line-height: 1 !important;
  white-space: nowrap !important;
}

.lessons-actions .logout-pill,
.trainer-menu button.trainer-chip,
.vocab-close {
  transition:
    transform 130ms ease,
    border-color 130ms ease,
    background-color 130ms ease,
    box-shadow 130ms ease !important;
}

.lessons-actions .logout-pill:active,
.trainer-menu button.trainer-chip:active,
.vocab-close:active {
  transform: translateY(1px) scale(0.97) !important;
  border-color: #cfd8ea !important;
  background-color: #f7f9ff !important;
  box-shadow: inset 0 2px 8px rgba(18, 27, 57, 0.06) !important;
}

.lessons-actions .remaining-pill {
  font-weight: 800 !important;
}

body.vocab-open {
  overflow: hidden !important;
  overscroll-behavior: none !important;
}

html,
body {
  --app-solid-bg: #1e2b53;
  background: #ffffff !important;
  background-color: #ffffff !important;
}

html.login-screen,
body.login-screen {
  background: var(--app-solid-bg) !important;
  background-color: var(--app-solid-bg) !important;
}

body::before {
  display: none !important;
  background: none !important;
  content: none !important;
  pointer-events: none !important;
}

.app {
  background: #ffffff !important;
  background-color: #ffffff !important;
}

body.login-screen .app,
body.login-screen .login-flow,
body.login-screen .intro-screen {
  background: var(--app-solid-bg) !important;
  background-color: var(--app-solid-bg) !important;
}

.lessons-page,
.trainer-screen {
  background: #ffffff !important;
  background-color: #ffffff !important;
}

.trainer-progress-grid.single {
  grid-template-columns: minmax(0, 1fr) !important;
}

.trainer-progress-grid.single .trainer-progress-label {
  letter-spacing: 0 !important;
  text-transform: none !important;
}

.app {
  position: relative !important;
  z-index: 1 !important;
}

.login-flow,
.intro-screen {
  min-height: 100vh !important;
  min-height: 100svh !important;
}

.intro-screen {
  overflow: visible !important;
}

.intro-screen::before {
  display: none !important;
  background: none !important;
  content: none !important;
  filter: none !important;
  opacity: 0 !important;
}

.intro-inner {
  position: relative !important;
  z-index: 1 !important;
}

.login-form-card {
  box-shadow: none !important;
  -webkit-backdrop-filter: none !important;
  backdrop-filter: none !important;
}

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

@keyframes vocabCardIn {
  from {
    opacity: 0;
    filter: blur(2px);
    transform: translateY(44px) scale(0.92);
  }
  to {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0) scale(1);
  }
}

@keyframes trainerSwipeBackOut {
  from {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
  to {
    opacity: 0.98;
    transform: translate3d(-100%, 0, 0);
  }
}

.trainer-screen.swipe-leaving {
  pointer-events: none !important;
  will-change: transform, opacity;
  animation: trainerSwipeBackOut 180ms cubic-bezier(0.22, 0.85, 0.28, 1) both !important;
}

.trainer-screen.swipe-dragging {
  transition: none !important;
  will-change: transform, opacity;
}

.trainer-screen.swipe-settle {
  transition:
    transform 180ms cubic-bezier(0.22, 0.85, 0.28, 1),
    opacity 180ms ease !important;
  will-change: transform, opacity;
}

.trainer-vocab-panel.collapsed {
  display: none !important;
}

.trainer-vocab-panel:not(.collapsed) {
  position: fixed !important;
  inset: 0 !important;
  z-index: 100 !important;
  display: grid !important;
  width: auto !important;
  height: auto !important;
  margin: 0 !important;
  place-items: center !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: rgba(18, 27, 57, 0.28) !important;
  padding: 34px !important;
  backdrop-filter: blur(10px);
  animation: vocabOverlayIn 260ms ease-out both;
}

.vocab-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.vocab-card {
  position: relative;
  z-index: 1;
  display: flex;
  width: min(780px, calc(100vw - 68px));
  max-height: min(760px, calc(100vh - 68px));
  flex-direction: column;
  gap: 18px;
  overflow: hidden;
  border: 1px solid #dfe4ef;
  border-radius: 30px;
  background: #f6f7fb;
  box-shadow: 0 28px 80px rgba(20, 24, 36, 0.2);
  padding: 24px;
  animation: vocabCardIn 360ms cubic-bezier(0.18, 0.9, 0.24, 1) both;
}

.vocab-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.vocab-head h2 {
  margin: 0 0 6px;
  color: #121b39;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.05;
}

.vocab-head .vocab-note {
  margin: 0;
}

.vocab-close {
  flex: 0 0 auto;
}

.trainer-vocab-panel:not(.collapsed) .trainer-word-list {
  display: grid !important;
  grid-template-columns: 1fr !important;
  align-content: start !important;
  gap: 12px !important;
  flex: 1 1 auto !important;
  min-height: 0 !important;
  max-height: none !important;
  overflow: auto !important;
}

.trainer-vocab-panel:not(.collapsed) .trainer-word-list .word {
  display: grid !important;
  grid-template-columns: 1fr !important;
  align-items: center !important;
  height: auto !important;
  min-height: 60px !important;
  max-height: none !important;
  overflow: hidden !important;
  padding: 12px 18px !important;
  line-height: normal !important;
}

.trainer-vocab-panel:not(.collapsed) .trainer-word-list .word-title {
  display: grid !important;
  grid-template-columns: minmax(180px, 0.86fr) minmax(0, 1.14fr) !important;
  align-items: center !important;
  gap: 22px !important;
  width: 100% !important;
  min-width: 0 !important;
  line-height: normal !important;
}

.trainer-vocab-panel:not(.collapsed) .trainer-word-list .word-main,
.trainer-vocab-panel:not(.collapsed) .trainer-word-list .word strong,
.trainer-vocab-panel:not(.collapsed) .trainer-word-list .word small {
  display: block !important;
  width: 100% !important;
  min-width: 0 !important;
  margin: 0 !important;
  position: static !important;
  inset: auto !important;
  transform: none !important;
  overflow-wrap: anywhere !important;
  white-space: normal !important;
}

.trainer-vocab-panel:not(.collapsed) .trainer-word-list .word-main,
.trainer-vocab-panel:not(.collapsed) .trainer-word-list .word strong {
  color: #263149;
  font-size: 16px !important;
  font-weight: 650 !important;
  line-height: 1.18 !important;
}

.trainer-vocab-panel:not(.collapsed) .trainer-word-list .word small {
  color: #8d96aa;
  font-size: 13px !important;
  font-weight: 500 !important;
  line-height: 1.28 !important;
}

.trainer-vocab-panel:not(.collapsed) .trainer-word-list .word.known .word-main,
.trainer-vocab-panel:not(.collapsed) .trainer-word-list .word.known strong {
  color: #fff;
}

.trainer-vocab-panel:not(.collapsed) .trainer-word-list .word.known small {
  color: rgba(255, 255, 255, 0.82);
}

@media (prefers-reduced-motion: reduce) {
  .trainer-vocab-panel:not(.collapsed),
  .trainer-vocab-panel:not(.collapsed) .vocab-card,
  .trainer-screen.swipe-leaving,
  .trainer-screen.swipe-dragging,
  .trainer-screen.swipe-settle {
    animation: none !important;
    transition: none !important;
  }
}

@media (min-width: 761px) {
  .lessons-actions .remaining-pill,
  .lessons-actions .logout-pill {
    height: 52px !important;
    min-height: 52px !important;
    border-radius: 20px !important;
    padding: 0 22px !important;
    font-size: 14px !important;
    font-weight: 800 !important;
    line-height: 1 !important;
  }

  .lessons-actions .logout-pill {
    width: 138px !important;
    min-width: 138px !important;
  }
}

@media (min-width: 900px) {
  .lessons-hero .lessons-ai-note {
    max-width: none;
    width: 100%;
  }

  .trainer-screen .dialog-stage .dialog-list {
    width: 100%;
    max-width: 1120px;
    margin-right: auto;
    margin-left: auto;
  }

  .trainer-screen .dialog-stage .dialog-message {
    width: min(760px, 86%);
    max-width: none;
  }

  .trainer-screen .dialog-stage .dialog-message.student {
    align-self: flex-end;
  }

  .trainer-screen .dialog-stage .dialog-message:not(.student) {
    align-self: flex-start;
  }
}

@media (max-width: 760px) {
  .lessons-actions {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    gap: 12px !important;
  }

  .lessons-actions .remaining-pill {
    box-sizing: border-box !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    height: 42px !important;
    min-height: 42px !important;
    border: 2px solid #e1e6f2 !important;
    border-radius: 17px !important;
    padding: 0 14px !important;
    color: #121b39 !important;
    font-size: 12px !important;
    font-weight: 800 !important;
    line-height: 1 !important;
    white-space: nowrap !important;
  }

  .trainer-vocab-panel:not(.collapsed) {
    box-sizing: border-box !important;
    display: flex !important;
    flex-direction: column !important;
    top: 0 !important;
    right: 0 !important;
    bottom: auto !important;
    left: 0 !important;
    align-content: normal !important;
    height: 100vh !important;
    height: 100svh !important;
    overflow: hidden !important;
    overflow-x: hidden !important;
    padding: max(14px, env(safe-area-inset-top)) 14px max(14px, env(safe-area-inset-bottom)) !important;
    place-items: stretch !important;
    touch-action: pan-y;
  }

  .vocab-card {
    box-sizing: border-box !important;
    display: flex !important;
    flex-direction: column !important;
    flex: 1 1 auto !important;
    width: 100% !important;
    height: auto !important;
    max-height: none !important;
    min-height: 0 !important;
    overflow: hidden !important;
    border-radius: 28px;
    padding: 18px;
  }

  .vocab-head {
    flex: 0 0 auto;
    gap: 12px;
  }

  .vocab-head h2 {
    font-size: 24px;
  }

  .vocab-close {
    height: 42px !important;
    min-height: 42px !important;
    width: 122px !important;
    min-width: 122px !important;
    border-radius: 17px !important;
    padding: 0 12px !important;
    font-size: 12px !important;
  }

  .trainer-vocab-panel {
    gap: 14px;
    padding: 16px;
  }

  .trainer-vocab-panel:not(.collapsed) .trainer-word-list {
    display: flex !important;
    flex-direction: column !important;
    flex-wrap: nowrap !important;
    align-content: normal !important;
    gap: 10px !important;
    flex: 1 1 auto !important;
    height: auto !important;
    min-height: 0 !important;
    max-height: none !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    position: relative !important;
    z-index: 2 !important;
    pointer-events: auto !important;
    touch-action: pan-y;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    padding-right: 2px !important;
    padding-bottom: max(10px, env(safe-area-inset-bottom)) !important;
  }

  .trainer-vocab-panel:not(.collapsed) .trainer-word-list .word {
    position: relative !important;
    flex: 0 0 auto !important;
    display: block !important;
    box-sizing: border-box !important;
    width: 100% !important;
    height: auto !important;
    min-height: 0 !important;
    max-height: none !important;
    margin: 0 !important;
    overflow: hidden !important;
    border-radius: 20px;
    padding: 11px 14px 12px !important;
    text-align: left !important;
    line-height: normal !important;
    vertical-align: top !important;
    white-space: normal !important;
    transform: none !important;
    transition:
      background-color 90ms ease,
      border-color 90ms ease,
      color 90ms ease !important;
  }

  .trainer-vocab-panel:not(.collapsed) .trainer-word-list .word:active {
    transform: none !important;
  }

  .trainer-vocab-panel:not(.collapsed) .trainer-word-list .word-title {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) !important;
    gap: 4px !important;
    box-sizing: border-box !important;
    width: 100% !important;
    min-width: 0 !important;
    line-height: normal !important;
    white-space: normal !important;
  }

  .trainer-vocab-panel:not(.collapsed) .trainer-word-list .word-main,
  .trainer-vocab-panel:not(.collapsed) .trainer-word-list .word strong {
    display: block !important;
    position: static !important;
    margin: 0 !important;
    color: #263149;
    font-size: 13.5px !important;
    font-weight: 600 !important;
    line-height: 1.22 !important;
    overflow-wrap: anywhere;
    white-space: normal !important;
  }

  .trainer-vocab-panel:not(.collapsed) .trainer-word-list .word small {
    display: block !important;
    position: static !important;
    margin: 0 !important;
    color: #8d96aa;
    font-size: 10.75px !important;
    font-weight: 500 !important;
    line-height: 1.32 !important;
    overflow-wrap: anywhere;
    white-space: normal !important;
  }

  .trainer-vocab-panel:not(.collapsed) .trainer-word-list .word.known .word-main,
  .trainer-vocab-panel:not(.collapsed) .trainer-word-list .word.known strong {
    color: #fff;
  }

  .trainer-vocab-panel:not(.collapsed) .trainer-word-list .word.known small {
    color: rgba(255, 255, 255, 0.82);
  }

  .lessons-actions .logout-pill {
    height: 42px !important;
    min-height: 42px !important;
    width: 122px !important;
    min-width: 122px !important;
    border-radius: 17px !important;
    padding: 0 12px !important;
    font-size: 12px !important;
    font-weight: 800 !important;
    margin-left: auto !important;
  }

  .trainer-menu button.trainer-chip {
    height: 42px !important;
    min-height: 42px !important;
    width: 122px !important;
    min-width: 122px !important;
    border-radius: 17px !important;
    padding: 0 12px !important;
    font-size: 12px !important;
  }
}

/* 2026-08-08: mobile level control and low-height desktop trainer layout. */
@media (max-width: 760px) {
  .trainer-menu {
    grid-template-columns: 42px minmax(0, 1fr) auto auto !important;
    gap: 6px !important;
  }

  .trainer-menu .icon-button {
    order: 1 !important;
  }

  .trainer-menu .trainer-title {
    min-width: 0 !important;
    order: 2 !important;
  }

  .trainer-menu .trainer-title h1 {
    font-size: clamp(18px, 5.4vw, 21px) !important;
    overflow-wrap: anywhere;
  }

  .trainer-menu button.trainer-chip[data-action="toggle-vocab"] {
    gap: 5px !important;
    order: 3 !important;
    width: 104px !important;
    min-width: 104px !important;
    max-width: 104px !important;
    padding: 0 8px !important;
  }

  .trainer-menu .trainer-level {
    box-sizing: border-box !important;
    display: inline-flex !important;
    order: 4 !important;
    width: 64px !important;
    min-width: 64px !important;
    max-width: 64px !important;
    height: 42px !important;
    min-height: 42px !important;
    overflow: hidden !important;
    padding: 0 !important;
  }

  .trainer-menu .trainer-level .select {
    width: 100% !important;
    min-width: 0 !important;
    height: 100% !important;
    padding: 0 18px 0 8px !important;
    background-position:
      calc(100% - 13px) 50%,
      calc(100% - 8px) 50%,
      0 0 !important;
    background-size:
      6px 6px,
      6px 6px,
      100% 100% !important;
    font-size: 12px !important;
  }
}

@media (max-width: 380px) {
  .trainer-menu {
    gap: 5px !important;
  }

  .trainer-menu button.trainer-chip[data-action="toggle-vocab"] {
    width: 96px !important;
    min-width: 96px !important;
    max-width: 96px !important;
    padding: 0 7px !important;
  }

  .trainer-menu .trainer-level {
    width: 60px !important;
    min-width: 60px !important;
    max-width: 60px !important;
  }
}

@media (min-width: 761px) {
  .trainer-screen {
    height: auto !important;
    min-height: 100vh !important;
    min-height: 100svh !important;
    overflow-x: hidden !important;
    overflow-y: auto !important;
  }

  .trainer-device {
    height: max(720px, min(940px, calc(100vh - 68px))) !important;
    height: max(720px, min(940px, calc(100svh - 68px))) !important;
    min-height: 720px !important;
  }

  .trainer-screen .dialog-stage {
    min-height: 320px !important;
  }
}

@media (min-width: 761px) and (max-height: 760px) {
  .trainer-screen {
    padding-top: 16px !important;
    padding-bottom: 16px !important;
  }

  .trainer-device {
    height: 690px !important;
    min-height: 690px !important;
  }

  .trainer-screen .dialog-stage {
    min-height: 280px !important;
  }
}