:root {
  --bg: #111111;
  --panel: #1a1a1a;
  --panel-2: #202020;
  --card: #ffffff;
  --border: #353535;
  --border-soft: #4a4a4a;
  --text: #f5f5f5;
  --text-muted: #b5b5b5;
  --text-strong: #111111;
  --button: #ffffff;
  --button-text: #111111;
  --button-muted: #2c2c2c;
  --button-muted-text: #f5f5f5;
  --danger: #d4d4d4;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
  --radius: 16px;
 }

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: linear-gradient(180deg, #0f0f0f 0%, #191919 100%) !important;
  color: var(--text) !important;
  font-family: "Inter", "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

[hidden] {
  display: none !important;
}

.visually-hidden-file-input {
  position: fixed;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.chakra-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 24px;
}

.chakra-stack {
  display: flex;
  gap: 1rem;
}

.chakra-heading,
.chakra-text,
.chakra-form-label,
.lesson-title,
.mobile-lesson-title,
.lesson-plan-title,
.mobile-plan-title,
.lesson-meta-item strong,
.info-value,
.info-group label {
  color: inherit !important;
}

.chakra-header {
  background: var(--panel) !important;
  border: 1px solid var(--border) !important;
  border-radius: 24px !important;
  box-shadow: var(--shadow) !important;
  margin-bottom: 24px;
}

.chakra-header .chakra-heading,
.chakra-header .chakra-text,
.chakra-header #userEmail {
  color: var(--text) !important;
}

.chakra-box,
.auth-section,
.chakra-modal__content,
.modal-content,
.mobile-day-view,
.mobile-lessons,
.range-clear-panel,
.admin-panel {
  background: var(--panel) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  box-shadow: var(--shadow) !important;
  color: var(--text) !important;
}

.auth-section {
  min-height: calc(100vh - 180px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-section > .chakra-stack,
#rangeClearPanel,
#mobileDayView,
main > .chakra-box,
.lesson-info-section,
.modal-footer,
.modal-body,
.modal-header,
.chakra-modal__header,
.chakra-modal__body {
  background: transparent !important;
  color: var(--text) !important;
}

.main-section {
  margin-top: 12px;
}

.chakra-button,
.btn,
.filter-btn,
.mobile-nav-btn,
.native-toolbar-btn,
.editor-toolbar button,
button,
a.chakra-button {
  appearance: none;
  border: 1px solid #8a8a93 !important;
  background: #2a2a2f !important;
  color: #ffffff !important;
  border-radius: 12px !important;
  padding: 10px 16px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
}

.chakra-button:hover,
.btn:hover,
.filter-btn:hover,
.mobile-nav-btn:hover,
.native-toolbar-btn:hover,
.editor-toolbar button:hover,
button:hover,
a.chakra-button:hover {
  background: #111111 !important;
  border-color: #ffffff !important;
  color: #ffffff !important;
}

.chakra-button:active,
.btn:active,
button:active,
a.chakra-button:active {
  transform: translateY(1px);
}

.chakra-button--primary,
.chakra-button--nav,
#saveLessonBtn,
#uploadBtn,
#addLessonBtn,
#adminPageLink {
  background: #ffffff !important;
  color: #111111 !important;
  border-color: #ffffff !important;
}

.chakra-button--secondary,
#closeModalBtn,
#logoutBtn,
.chakra-button--filter,
.filter-btn {
  background: #ffffff !important;
  color: #111111 !important;
  border-color: #d4d4d8 !important;
}

.chakra-button--danger,
#deleteLessonBtn,
#clearRangeBtn,
#clearRangeToggleBtn {
  background: #111111 !important;
  color: #ffffff !important;
  border-color: #111111 !important;
}

.chakra-button--filter.active,
.filter-btn.active,
[data-filter].active,
#viewToggleBtn.active {
  background: #111111 !important;
  color: #ffffff !important;
  border-color: #111111 !important;
}

.chakra-button--google {
  width: 100%;
  background: #ffffff !important;
  color: #111111 !important;
  border-color: #d4d4d8 !important;
}

.icon-only-button {
  width: 42px;
  min-width: 42px;
  padding: 10px !important;
  flex: 0 0 42px;
}

.icon-only-button i {
  font-size: 1rem;
  line-height: 1;
}

.chakra-button--toolbar,
.editor-toolbar button,
.native-toolbar-btn {
  background: #ffffff !important;
  color: #111111 !important;
  border: 1px solid #a1a1aa !important;
}

.chakra-button--toolbar:hover,
.editor-toolbar button:hover,
.native-toolbar-btn:hover {
  background: #111111 !important;
  color: #ffffff !important;
  border-color: #111111 !important;
}

.modal-footer .chakra-button,
.modal-footer .btn,
#quickTextCancel,
#quickTextSave,
#editLessonBtn,
#viewLessonBtn {
  min-width: 100px;
}

.chakra-input,
.chakra-textarea,
input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--border-soft) !important;
  background: #171717 !important;
  color: var(--text) !important;
  border-radius: 12px !important;
  padding: 12px 14px;
  font: inherit;
  box-shadow: none !important;
}

.chakra-input::placeholder,
.chakra-textarea::placeholder,
input::placeholder,
textarea::placeholder {
  color: var(--text-muted);
}

.chakra-input:focus,
.chakra-textarea:focus,
input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: #cfcfcf !important;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.08) !important;
}

.calendar-grid-container {
  width: 100%;
  overflow-x: auto;
}

.calendar-grid {
  display: grid;
  grid-template-columns: 72px repeat(5, minmax(180px, 1fr));
  grid-auto-rows: 56px;
  gap: 1px;
  min-width: 980px;
  padding: 1px;
  background: var(--border);
  border-radius: 18px !important;
  overflow: hidden;
}

.calendar-grid .calendar-header,
.calendar-grid .calendar-time,
.calendar-grid .calendar-cell {
  background: var(--panel-2);
}

.calendar-grid .calendar-header {
  padding: 14px 10px;
  font-weight: 700;
  text-align: center;
  color: var(--text);
}

.calendar-grid .calendar-time {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 12px;
  color: var(--text-muted);
  font-size: 13px;
}

.calendar-grid .calendar-cell {
  position: relative;
  min-height: 56px;
}

.calendar-todo-cell {
  display: flex;
  flex-direction: column;
  height: 200px !important;
  min-height: 200px !important;
  max-height: 200px !important;
  overflow: hidden !important;
  background: #f7f7f9;
  padding: 10px;
}

.calendar-todo-cell .todo-section {
  height: 100% !important;
  min-height: 100% !important;
  max-height: 100% !important;
  overflow: hidden !important;
}

.calendar-todo-cell .todo-list {
  min-height: 100% !important;
  max-height: 100% !important;
}

.calendar-todo-cell .todo-add-row {
  flex: 0 0 auto;
}

.calendar-todo-cell .todo-editor {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid #c9c9cf;
  background: #ffffff;
  color: #111111;
  font: inherit;
}

.calendar-todo-cell .todo-editor:focus {
  outline: none;
  border-color: #111111;
  box-shadow: 0 0 0 2px rgba(17, 17, 17, 0.12);
}

.calendar-todo-cell .todo-item {
  cursor: grab;
}

.calendar-todo-cell .todo-item.dragging {
  opacity: 0.6;
}

.calendar-todo-label {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12px;
  font-weight: 700;
  color: #111111;
}

.calendar-grid .calendar-event,
.lesson-card,
.mobile-lesson-card,
.lesson-in-slot {
  background: var(--card) !important;
  color: var(--text-strong) !important;
  border: 1px solid #d6d6d6 !important;
  border-left: none !important;
  border-radius: 14px !important;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.12) !important;
}

.calendar-grid .calendar-event {
  position: absolute;
  left: 6px;
  right: 6px;
  top: 6px;
  bottom: 6px;
  padding: 10px 12px;
  overflow: hidden;
  cursor: pointer;
}

.calendar-event-content {
  padding-right: 24px;
}

.calendar-grid .calendar-event:hover,
.lesson-card:hover,
.mobile-lesson-card:hover,
.lesson-in-slot:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.16) !important;
}

.lesson-card,
.mobile-lesson-card {
  padding: 14px 16px;
  position: relative;
}

.lesson-card-delete {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 28px;
  min-width: 28px;
  height: 28px;
  min-height: 28px;
  padding: 0 !important;
  border-radius: 999px !important;
  background: #111111 !important;
  color: #ffffff !important;
  border: 1px solid #111111 !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  z-index: 3;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: scale(0.92);
  transition: opacity 0.16s ease, transform 0.16s ease, background 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.show-delete-action .lesson-card-delete {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: scale(1);
}

.show-delete-action {
  box-shadow: 0 0 0 2px rgba(17, 17, 17, 0.12), 0 12px 24px rgba(0, 0, 0, 0.16) !important;
}

.lesson-card-delete:hover {
  background: #ffffff !important;
  color: #111111 !important;
  border-color: #a1a1aa !important;
}

.calendar-event-delete {
  top: 8px;
  right: 8px;
}

.mobile-lesson-delete {
  top: 12px;
  right: 12px;
}

.lesson-card-header,
.lesson-meta-item,
.lesson-actions,
.admin-panel-controls,
.members-list,
.range-clear-controls,
.filter-buttons,
.filter-btn-group,
.resources-list,
.mobile-lessons-content,
.mobile-time-group {
  display: flex;
  gap: 10px;
}

.lesson-card-header,
.lesson-actions,
.admin-panel-controls,
.range-clear-controls,
.filter-buttons,
.filter-btn-group {
  flex-wrap: wrap;
}

.lesson-card-header {
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 8px;
}

.lesson-meta,
.mobile-lesson-meta,
.members-list,
.resources-list,
.mobile-lessons-content,
.mobile-time-group {
  flex-direction: column;
}

.lesson-meta,
.mobile-lesson-meta,
.member-meta,
.range-clear-hint,
.auth-note,
.user-email,
.day-date,
.mobile-plan-title,
.lesson-plan-title,
.empty-state,
.loading,
.mobile-lesson-status,
.lesson-status {
  color: var(--text-muted) !important;
}

.lesson-badge,
.lesson-status,
.mobile-lesson-status {
  display: inline-flex;
  align-items: center;
  padding: 4px 8px;
  border-radius: 999px;
  background: #efefef;
  color: #111111 !important;
  font-size: 12px;
  font-weight: 600;
}

.empty-state,
.loading {
  padding: 48px 20px;
  text-align: center;
}

.mobile-day-nav,
.week-navigation,
.filter-controls,
.filter-controls-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

#mobileDayView {
  display: none !important;
}

.mobile-day-display,
.week-display,
.day-display {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text) !important;
}

.mobile-time-header,
.time-header,
.day-column-header {
  background: var(--panel-2) !important;
  color: var(--text) !important;
  border: 1px solid var(--border) !important;
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.62);
  z-index: 999;
}

.modal.show {
  display: flex;
}

.chakra-modal__content,
.modal-content {
  width: min(960px, 100%);
  max-height: calc(100vh - 48px);
  overflow: auto;
}

.modal-large {
  width: min(1100px, 100%);
}

.chakra-modal__header,
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border) !important;
}

.chakra-modal__body,
.modal-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 20px 24px;
  border-top: 1px solid var(--border) !important;
}

.close,
.chakra-modal__close {
  font-size: 28px;
  line-height: 1;
  color: var(--text-muted) !important;
  background: transparent !important;
  border: 0 !important;
  padding: 0;
}

.lesson-info-section,
.info-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.info-group,
.chakra-form-control,
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

.editor-toolbar button,
.native-toolbar-btn {
  min-width: 40px;
  padding: 8px 12px;
}

.resource-item,
.member-item,
.todo-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 14px;
  background: var(--panel-2) !important;
  border: 1px solid var(--border) !important;
  border-radius: 12px !important;
  color: var(--text) !important;
}

.todo-section,
.mobile-todo-panel {
  background: var(--panel) !important;
  border: 1px solid var(--border) !important;
  border-radius: 16px !important;
  color: var(--text) !important;
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  display: none;
  padding: 14px 18px;
  border-radius: 12px;
  background: #ffffff;
  color: #111111;
  box-shadow: var(--shadow);
  z-index: 1100;
}

.toast.show {
  display: block;
}

@media (max-width: 768px) {
  .chakra-container {
    padding: 16px;
  }

  .desktop-todo-panel {
    display: none !important;
  }

}

@media (min-width: 769px) {
  .desktop-todo-panel {
    display: block;
  }
}

@media (max-width: 640px) {

  .chakra-header .chakra-stack,
  .week-navigation,
  .filter-controls,
  .filter-controls-row,
  .mobile-day-nav,
  .range-clear-controls,
  .modal-footer,
  .lesson-info-section,
  .info-row {
    flex-direction: column !important;
    align-items: stretch !important;
  }

  .calendar-grid {
    min-width: 760px;
  }
}

@media (max-width: 640px) {
  #mobileDayView {
    display: block !important;
  }

  .chakra-container {
    padding: 12px;
  }

  .auth-section {
    min-height: auto;
    padding: 8px 0 20px;
  }

  .modal {
    padding: 12px;
  }

  .chakra-modal__body,
  .modal-body,
  .chakra-modal__header,
  .modal-header,
  .modal-footer {
    padding-left: 16px;
    padding-right: 16px;
  }
}