:root {
  color-scheme: dark;
  --bg: #101211;
  --surface: #171a19;
  --surface-2: #202522;
  --line: #2d332f;
  --text: #f5f5f0;
  --muted: #9ca39c;
  --green: #70c69a;
  --blue: #5aa7ff;
  --yellow: #f2bc54;
  --red: #e66b64;
  --purple: #b48be6;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px 1fr;
  background: var(--bg);
  color: var(--text);
  zoom: 0.8;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

body.sidebar-collapsed {
  grid-template-columns: 1fr;
  grid-template-rows: 52px 1fr;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 24px 18px;
  border-right: 1px solid var(--line);
  background: #121513;
}

.sidebar-toggle {
  width: 100%;
  min-height: 38px;
  margin: -10px 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text);
}

body.sidebar-collapsed .sidebar {
  position: sticky;
  z-index: 10;
  top: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  height: 52px;
  padding: 8px 14px;
  border-right: 0;
  border-bottom: 1px solid var(--line);
}

body.sidebar-collapsed .brand div,
body.sidebar-collapsed .sidebar-card span,
body.sidebar-collapsed .sidebar-card strong,
body.sidebar-collapsed .sidebar-card small {
  font-size: 0;
}

body.sidebar-collapsed .brand {
  display: flex;
  flex: 0 0 auto;
  justify-content: center;
  margin-bottom: 0;
}

body.sidebar-collapsed .brand-mark {
  width: 34px;
  height: 34px;
}

body.sidebar-collapsed .sidebar-toggle {
  flex: 0 0 auto;
  width: 38px;
  height: 34px;
  min-height: 34px;
  margin: 0;
}

body.sidebar-collapsed .nav {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 0;
}

body.sidebar-collapsed .nav-item {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: auto;
  height: 34px;
  min-height: 34px;
  padding: 0 10px;
  color: var(--text);
  border-color: transparent;
  background: transparent;
  font-size: 0.9rem;
  font-weight: 700;
}

body.sidebar-collapsed .nav-item::before {
  content: none;
}

body.sidebar-collapsed .nav-item.active {
  background: transparent;
  border-color: transparent;
  color: var(--green);
}

body.sidebar-collapsed .nav-item.active::before {
  content: none;
}

body.sidebar-collapsed .nav-item:hover {
  background: var(--surface-2);
  border-color: var(--line);
}

body.sidebar-collapsed .sidebar-card {
  display: none;
}

body.sidebar-collapsed .app {
  grid-row: 2;
  padding-top: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--green);
  color: #08120d;
  font-weight: 900;
}

.brand strong,
.brand small {
  display: block;
}

.brand small,
.eyebrow,
.panel p,
.metric span,
.metric small,
.sidebar-card span,
.sidebar-card small {
  color: var(--muted);
}

.nav {
  display: grid;
  gap: 6px;
}

.nav-item,
.ghost-button,
.danger-button,
form button {
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--text);
  background: transparent;
  min-height: 42px;
  padding: 0 14px;
}

.nav-item {
  text-align: left;
}

.nav-item:hover,
.nav-item.active {
  background: var(--surface-2);
  border-color: var(--line);
}

.sidebar-card {
  margin-top: 28px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.sidebar-card strong {
  display: block;
  margin: 6px 0 10px;
}

.progress {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: #303630;
}

.progress span {
  display: block;
  width: 0%;
  height: 100%;
  background: var(--green);
  transition: width 180ms ease;
}

.app {
  min-width: 0;
  padding: 28px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 4px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1;
}

h2 {
  margin-bottom: 4px;
  font-size: 1.05rem;
}

.top-actions {
  display: flex;
  align-items: end;
  gap: 10px;
  flex-shrink: 0;
}

.action-menu {
  position: relative;
}

.action-menu summary {
  display: inline-grid;
  min-height: 42px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text);
  padding: 0 14px;
  list-style: none;
  cursor: pointer;
  font-weight: 800;
}

.action-menu summary::-webkit-details-marker {
  display: none;
}

.action-menu[open] summary {
  border-color: var(--blue);
}

.action-menu-panel {
  position: absolute;
  z-index: 20;
  top: calc(100% + 8px);
  right: 0;
  display: grid;
  gap: 8px;
  width: min(320px, calc(100vw - 32px));
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
  overflow: hidden;
}

.cloud-auth {
  display: grid;
  gap: 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.cloud-auth strong {
  font-size: 0.9rem;
}

.cloud-auth small {
  color: var(--muted);
  line-height: 1.35;
}

.cloud-auth input {
  width: 100%;
  min-height: 38px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
}

.cloud-auth-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.cloud-auth-actions .hidden {
  display: none;
}

.action-menu-panel button {
  width: 100%;
  white-space: nowrap;
}

.import-box {
  display: grid;
  gap: 8px;
}

.import-box select {
  width: 100%;
  min-height: 38px;
}

.import-label {
  display: grid;
  min-height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text);
  cursor: pointer;
  font-weight: 800;
}

.import-label input {
  display: none;
}

.filter-control {
  display: grid;
  gap: 6px;
  min-width: 180px;
  color: var(--muted);
  font-size: 0.82rem;
}

input,
select,
textarea {
  min-height: 48px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #111412;
  color: var(--text);
  padding: 9px 11px;
  outline: none;
}

textarea {
  min-height: 104px;
  resize: vertical;
}

.file-field {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.82rem;
}

.file-field input {
  padding: 8px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--blue);
}

.ghost-button {
  background: var(--surface-2);
  border-color: var(--line);
}

.ghost-button.active {
  border-color: var(--blue);
  color: #d8ecff;
}

.danger-button {
  background: rgba(230, 107, 100, 0.14);
  border-color: rgba(230, 107, 100, 0.28);
}

.hidden {
  display: none !important;
}

body.edit-mode [data-edit-key],
body.edit-mode .nav-item {
  outline: 1px dashed rgba(90, 167, 255, 0.7);
  outline-offset: 3px;
  cursor: text;
}

body.edit-mode [data-edit-block] {
  cursor: grab;
  position: relative;
}

body.edit-mode [data-edit-block]::after {
  content: "arraste";
  position: absolute;
  top: 8px;
  right: 8px;
  border-radius: 999px;
  padding: 3px 8px;
  background: rgba(90, 167, 255, 0.16);
  color: #cfe6ff;
  font-size: 0.72rem;
  font-weight: 800;
}

[data-edit-block].dragging {
  opacity: 0.55;
}

[data-edit-block].drag-over {
  outline: 2px solid var(--blue);
  outline-offset: 4px;
}

[data-edit-record] {
  cursor: pointer;
}

[data-edit-record]:hover {
  outline: 1px dashed rgba(112, 198, 154, 0.55);
  outline-offset: 2px;
}

[data-edit-record].inline-editing {
  display: inline-block;
  min-width: 48px;
  border-radius: 5px;
  background: rgba(90, 167, 255, 0.14);
  outline: 2px solid var(--blue);
  outline-offset: 2px;
  padding: 2px 4px;
  cursor: text;
}

form button {
  background: var(--blue);
  color: #07111d;
  font-weight: 800;
  min-height: 48px;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.metric,
.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.metric {
  padding: 18px;
}

.metric strong {
  display: block;
  margin: 8px 0;
  font-size: 2rem;
}

.metric-input {
  max-width: 120px;
  min-height: 34px;
  margin-top: 10px;
  padding: 6px 8px;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 12px;
}

.dashboard-filter-bar {
  display: flex;
  justify-content: flex-end;
  margin: -6px 0 12px;
}

.dashboard-filter-bar .filter-control {
  min-width: 220px;
}

.wide {
  grid-column: 1 / -1;
}

.panel {
  padding: 18px;
  min-width: 0;
}

.panel-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.panel-head p {
  margin-bottom: 0;
  font-size: 0.9rem;
}

.panel-head select {
  width: auto;
}

.chart-controls {
  display: flex;
  gap: 10px;
  align-items: center;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(140px, 1fr));
  align-items: stretch;
  gap: 10px;
  margin-bottom: 16px;
}

.form-grid textarea {
  grid-column: span 2;
}

.planner-form {
  grid-template-columns: 160px 1fr 1.4fr 160px;
  align-items: end;
}

.planner-form button[type="submit"] {
  justify-self: center;
  width: min(100%, 150px);
}

.planner-builder {
  max-width: 760px;
  margin-bottom: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: var(--surface);
}

.planner-builder.calendar-popover {
  position: absolute;
  top: 0;
  left: calc(100% + 12px);
  z-index: 40;
  width: 420px;
  max-width: none;
  margin: 0;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.42);
}

.calendar-day:nth-child(7n) .planner-builder.calendar-popover,
.calendar-day:nth-child(7n - 1) .planner-builder.calendar-popover,
.calendar-day:nth-child(7n - 2) .planner-builder.calendar-popover {
  right: calc(100% + 12px);
  left: auto;
}

.planner-builder-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.planner-type-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(150px, 1fr));
  gap: 8px;
}

.planner-type-card {
  display: grid;
  min-height: 94px;
  place-items: center;
  align-content: center;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-weight: 900;
}

.planner-type-card:hover {
  border-color: var(--green);
  background: rgba(112, 198, 154, 0.08);
}

.planner-type-card img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  filter: invert(1);
}

.planner-builder-form {
  display: grid;
  grid-template-columns: minmax(150px, 1fr) minmax(150px, 1fr);
  gap: 10px;
}

.planner-builder-form.mock-block-form {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

.planner-builder-form select[multiple] {
  min-height: 86px;
}

.planner-builder-form button[type="submit"] {
  min-width: 0;
  width: 100%;
  min-height: 44px;
}

.planner-builder-form input[name="date"],
.planner-builder-form.mock-block-form select[name="examDay"] {
  grid-column: 1 / -1;
}

.planner-builder-form > select:first-of-type,
.new-material-fields {
  grid-column: 1 / -1;
}

.new-material-fields {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.035);
}

.new-material-fields summary {
  cursor: pointer;
  color: var(--muted);
  font-weight: 800;
}

.new-material-fields[open] {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.new-material-fields[open] summary {
  grid-column: 1 / -1;
}

.new-material-fields select,
.new-material-fields input {
  min-width: 0;
}

.time-form {
  grid-template-columns: 160px 1fr 180px 150px;
}

.study-timer-grid {
  display: grid;
  gap: 10px;
  margin: 12px 0 16px;
}

.study-timer-card {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) 150px auto;
  align-items: center;
  gap: 14px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #131715;
}

.study-timer-card.active {
  border-color: rgba(112, 198, 154, 0.62);
  background: rgba(112, 198, 154, 0.08);
}

.study-timer-main {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.subject-dot {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  border-radius: 999px;
}

.study-timer-main strong,
.study-timer-main small,
.study-timer-time strong,
.study-timer-time small {
  display: block;
}

.study-timer-main small,
.study-timer-time small {
  color: var(--muted);
  font-size: 0.82rem;
}

.study-timer-time strong {
  font-size: 1.35rem;
}

.study-timer-actions {
  display: flex;
  gap: 8px;
}

.study-timer-actions .ghost-button {
  min-width: 96px;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.focus-screen {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  grid-template-rows: auto auto minmax(170px, 1fr) auto;
  min-height: 100vh;
  padding: 22px clamp(18px, 5vw, 42px) 34px;
  background: #0d0f0e;
  color: var(--text);
  overflow: auto;
}

.focus-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.focus-chip {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  border-radius: 7px;
  padding: 0 10px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-weight: 800;
}

.focus-icon-button {
  display: grid;
  width: 42px;
  height: 42px;
  min-height: 42px;
  place-items: center;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  font-size: 1.5rem;
}

.focus-center {
  align-self: center;
  display: grid;
  justify-items: center;
  gap: 14px;
  padding: clamp(28px, 5vh, 58px) 0 clamp(20px, 4vh, 38px);
}

.focus-center > span {
  color: #d9ded8;
  font-weight: 700;
}

.focus-center > strong {
  font-size: clamp(4rem, 16vw, 8rem);
  line-height: 0.92;
  letter-spacing: 0;
}

.focus-stats {
  display: flex;
  justify-content: center;
  gap: clamp(34px, 9vw, 72px);
  text-align: center;
}

.focus-stats small,
.focus-stats span {
  display: block;
}

.focus-stats small {
  color: #777d78;
  font-weight: 800;
}

.focus-stats span {
  margin-top: 4px;
  color: #a6aca7;
}

.focus-bottom {
  display: grid;
  justify-items: center;
  gap: 14px;
}

.focus-control-button {
  display: grid;
  width: 68px;
  height: 68px;
  min-height: 68px;
  place-items: center;
  border: 0;
  border-radius: 999px;
  background: #f2f2ef;
  color: #161817;
  font-size: 1.35rem;
  font-weight: 900;
}

.focus-finish-button {
  min-height: 46px;
  border: 1px solid rgba(230, 107, 100, 0.34);
  border-radius: 999px;
  padding: 0 22px;
  background: rgba(230, 107, 100, 0.12);
  color: #ffd7d4;
  font-weight: 900;
}

.focus-study-panel {
  align-self: start;
  justify-self: center;
  display: grid;
  width: min(1100px, 100%);
  grid-template-columns: minmax(320px, 1fr) minmax(360px, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.focus-panel-card {
  min-width: 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.035);
}

.focus-panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.focus-panel-head strong,
.focus-panel-head span,
.focus-panel-head small {
  display: block;
}

.focus-panel-head strong {
  font-size: 0.98rem;
}

.focus-panel-head span,
.focus-panel-head small {
  color: var(--muted);
  font-size: 0.82rem;
}

.focus-todo-list {
  display: grid;
  max-height: 260px;
  gap: 8px;
  overflow: auto;
  padding-right: 3px;
}

.focus-todo-picker {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  margin-bottom: 10px;
}

.focus-todo-picker select {
  min-width: 0;
}

.focus-todo-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 8px;
  padding: 9px 10px;
  background: rgba(0, 0, 0, 0.18);
}

.focus-todo-item input {
  width: 16px;
  height: 16px;
}

.focus-todo-item strong,
.focus-todo-item small {
  display: block;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.focus-todo-item small {
  color: var(--muted);
  font-size: 0.78rem;
}

.focus-todo-item em {
  border-radius: 999px;
  padding: 3px 8px;
  background: rgba(112, 198, 154, 0.12);
  color: var(--green);
  font-size: 0.72rem;
  font-style: normal;
  font-weight: 800;
}

.focus-todo-item.done {
  opacity: 0.66;
}

.focus-todo-item.done strong {
  text-decoration: line-through;
}

.focus-question-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 8px;
}

.focus-question-form input {
  min-width: 0;
  width: 100%;
}

.focus-question-form input[name="name"],
.focus-question-form input[name="content"] {
  grid-column: span 1;
}

.focus-question-form button {
  min-width: 0;
  width: 100%;
}

.focus-empty {
  margin: 8px 0 2px;
  color: var(--muted);
  text-align: center;
}

body.focus-open {
  overflow: hidden;
}

.timeline-head {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 14px;
  margin: 2px 0 14px;
}

.timeline-head strong {
  font-size: 1.35rem;
}

.timeline-title {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.timeline-title span {
  border-radius: 7px;
  padding: 3px 8px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-size: 0.86rem;
  white-space: nowrap;
}

.timeline-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.timeline-controls .ghost-button {
  min-width: 38px;
  min-height: 38px;
  padding: 0 10px;
}

.timeline-controls input {
  width: 150px;
  min-height: 38px;
  padding: 7px 9px;
}

.timeline-head small {
  color: var(--muted);
  text-align: right;
  white-space: nowrap;
}

.study-day-timeline-scroll {
  max-height: 714px;
  overflow-y: auto;
  overflow-x: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #101211;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025);
}

.study-day-timeline {
  position: relative;
  min-height: 1008px;
}

.timeline-hour {
  position: relative;
  height: 42px;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.055);
}

.timeline-hour:last-child {
  border-bottom: 0;
}

.timeline-hour span {
  position: absolute;
  top: 10px;
  left: 14px;
  color: #7f877f;
  font-size: 0.78rem;
  font-weight: 800;
}

.timeline-block {
  position: absolute;
  left: 82px;
  right: 16px;
  display: flex;
  align-items: center;
  min-height: 66px;
  border-left: 10px solid var(--block-color);
  border-radius: 8px;
  padding: 10px 42px 10px 14px;
  background: rgba(255, 255, 255, 0.055);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.14);
  overflow: hidden;
}

.timeline-block-copy {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.timeline-block.active {
  outline: 1px solid rgba(90, 167, 255, 0.38);
  background: rgba(90, 167, 255, 0.08);
}

.timeline-block strong {
  font-size: 0.95rem;
  line-height: 1.15;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.timeline-block span {
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.15;
}

.timeline-block small {
  color: #7f877f;
  font-size: 0.78rem;
  line-height: 1.15;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.timeline-block .icon-button {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 24px;
  height: 24px;
  min-height: 24px;
}

.timeline-now {
  position: absolute;
  z-index: 2;
  left: 0;
  right: 0;
  border-top: 1px solid var(--blue);
}

.timeline-now span {
  position: absolute;
  top: -10px;
  left: 0;
  border-radius: 4px;
  padding: 2px 5px;
  background: var(--blue);
  color: #07111d;
  font-size: 0.72rem;
  font-weight: 900;
}

.timeline-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 0.95rem;
}

.manual-study-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.manual-study-list article {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #131715;
}

.mock-form {
  grid-template-columns: repeat(6, minmax(100px, 1fr));
  grid-template-areas:
    "date name name target target correct"
    "total humanities languages nature math essay"
    ". . submit submit . .";
}

.mock-form input[name="date"] {
  grid-area: date;
}

.mock-form input[name="name"] {
  grid-area: name;
}

.mock-form select[name="mockTarget"] {
  grid-area: target;
}

.mock-form input[name="correct"] {
  grid-area: correct;
}

.mock-form input[name="totalQuestions"] {
  grid-area: total;
}

.mock-form input[name="languages"] {
  grid-area: languages;
}

.mock-form input[name="humanities"] {
  grid-area: humanities;
}

.mock-form input[name="nature"] {
  grid-area: nature;
}

.mock-form input[name="math"] {
  grid-area: math;
}

.mock-form input[name="essayScore"] {
  grid-area: essay;
}

.mock-form button[type="submit"] {
  grid-area: submit;
  justify-self: center;
  width: min(100%, 220px);
}

.mock-section {
  display: grid;
  gap: 10px;
  margin-top: 26px;
}

.mock-section h2 {
  margin: 0;
  font-size: 1.25rem;
}

.mock-section table {
  min-width: 880px;
}

.essay-form {
  grid-template-columns: repeat(5, minmax(90px, 1fr));
  grid-template-areas:
    "date theme theme score image"
    "c1 c2 c3 c4 c5"
    ". . submit . .";
}

.essay-form input[name="date"] {
  grid-area: date;
}

.essay-form input[name="theme"] {
  grid-area: theme;
}

.essay-form input[name="score"] {
  grid-area: score;
}

.essay-form .file-field {
  grid-area: image;
}

.essay-form input[name="c1"] {
  grid-area: c1;
}

.essay-form input[name="c2"] {
  grid-area: c2;
}

.essay-form input[name="c3"] {
  grid-area: c3;
}

.essay-form input[name="c4"] {
  grid-area: c4;
}

.essay-form input[name="c5"] {
  grid-area: c5;
}

.essay-form button[type="submit"] {
  grid-area: submit;
  justify-self: center;
  width: min(100%, 220px);
}

.error-panel-controls {
  display: flex;
  align-items: end;
  gap: 10px;
}

.error-form {
  grid-template-columns: repeat(6, minmax(90px, 1fr));
  grid-template-areas:
    "date subject content content source source"
    "header header header header image resolution"
    "a a b b c c"
    "d d e e correct marked"
    "reason reason reason fix fix fix"
    ". . submit submit . .";
  align-items: stretch;
  gap: 9px;
}

.error-form input[name="date"] {
  grid-area: date;
}

.error-form select[name="subject"] {
  grid-area: subject;
}

.error-form input[name="content"] {
  grid-area: content;
}

.error-form input[name="source"] {
  grid-area: source;
}

.error-form textarea[name="questionHeader"] {
  grid-area: header;
}

.error-form .file-field {
  grid-area: image;
}

.error-form .resolution-file {
  grid-area: resolution;
}

.error-form input[name="alternativeA"] {
  grid-area: a;
}

.error-form input[name="alternativeB"] {
  grid-area: b;
}

.error-form input[name="alternativeC"] {
  grid-area: c;
}

.error-form input[name="alternativeD"] {
  grid-area: d;
}

.error-form input[name="alternativeE"] {
  grid-area: e;
}

.error-form select[name="correctAnswer"] {
  grid-area: correct;
}

.error-form select[name="markedAnswer"] {
  grid-area: marked;
}

.error-form .check-field {
  grid-area: done;
}

.error-form textarea[name="reason"] {
  grid-area: reason;
}

.error-form textarea[name="fix"] {
  grid-area: fix;
}

.error-form button[type="submit"] {
  grid-area: submit;
  justify-self: center;
  width: min(100%, 220px);
  min-height: 46px;
}

.error-form textarea,
.error-form .file-field {
  min-height: 96px;
}

.error-form input[name^="alternative"],
.error-form select[name="correctAnswer"],
.error-form select[name="markedAnswer"],
.error-form .check-field {
  min-height: 42px;
}

.error-form .file-field {
  align-content: start;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #111412;
  padding: 10px;
}

.error-form .file-field input {
  display: none;
}

.paste-image-field {
  display: grid;
  place-items: center;
  gap: 5px;
  cursor: pointer;
  text-align: center;
}

.paste-image-field:focus-visible {
  border-color: var(--blue);
}

.paste-image-field span::after {
  content: " · Ctrl+V";
  color: var(--muted);
  font-size: 0.78rem;
}

.file-field-icon {
  width: 34px;
  height: 34px;
  filter: invert(1);
  opacity: 0.82;
}

.paste-image-field.has-pasted-image {
  border-color: rgba(112, 198, 154, 0.62);
  background: rgba(112, 198, 154, 0.08);
}

.check-field {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #111412;
  color: var(--muted);
  padding: 9px 11px;
}

.check-field input {
  width: auto;
  min-height: auto;
}

.form-image-edit {
  margin-top: 4px;
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.calendar-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 8px 0 12px;
}

.calendar-toolbar > div {
  display: flex;
  gap: 8px;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(120px, 1fr));
  overflow: visible;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 16px;
}

.task-board-section {
  margin: 12px 0 18px;
}

.compact-head {
  margin-bottom: 10px;
}

.task-board {
  display: grid;
  grid-template-columns: repeat(4, minmax(170px, 1fr));
  gap: 12px;
}

.task-column {
  min-height: 132px;
  padding: 10px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
}

.task-column.todo {
  background: rgba(230, 107, 100, 0.1);
}

.task-column.doing {
  background: rgba(242, 188, 84, 0.08);
}

.task-column.done {
  background: rgba(112, 198, 154, 0.08);
}

.task-column.later {
  background: rgba(232, 137, 119, 0.07);
}

.task-column-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.task-column-head span {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  border-radius: 4px;
  padding: 0 8px;
  background: rgba(255, 255, 255, 0.18);
  font-weight: 800;
  font-size: 0.84rem;
}

.task-column-head strong {
  color: var(--green);
  font-size: 0.85rem;
}

.task-dropzone {
  display: grid;
  gap: 8px;
  min-height: 78px;
  border-radius: 6px;
}

.task-dropzone.drag-over {
  outline: 1px dashed var(--blue);
  outline-offset: 4px;
}

.task-card {
  display: grid;
  gap: 8px;
  padding: 12px;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.08);
}

.task-card.dragging {
  opacity: 0.55;
}

.task-card small {
  color: var(--muted);
}

.task-card label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
}

.calendar-weekday,
.calendar-day {
  min-width: 120px;
  border-right: 1px solid var(--line);
}

.calendar-weekday:nth-child(7n),
.calendar-day:nth-child(7n) {
  border-right: 0;
}

.calendar-weekday {
  padding: 10px;
  color: var(--muted);
  font-size: 0.82rem;
  text-align: center;
  background: #131715;
}

.calendar-day {
  position: relative;
  min-height: 150px;
  padding: 8px;
  border-top: 1px solid var(--line);
  background: #111412;
  overflow: visible;
}

.calendar-day.builder-open {
  outline: 1px dashed var(--line);
  outline-offset: -4px;
  background: #171a18;
}

.calendar-day.drag-over {
  outline: 2px solid var(--blue);
  outline-offset: -3px;
  background: rgba(90, 167, 255, 0.1);
}

.calendar-day.muted {
  background: #0f1110;
  color: #616760;
}

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

.collapsible-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--line);
  border-bottom: 0;
  border-radius: var(--radius) var(--radius) 0 0;
  background: var(--surface);
}

.collapse-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 12px;
  border: 0;
  background: transparent;
  color: var(--text);
  font-weight: 900;
}

.collapse-caret {
  display: inline-grid;
  width: 16px;
  place-items: center;
}

.collapsible-section.collapsed .collapsible-body {
  display: none;
}

.collapsible-section.collapsed .collapsible-head {
  border-bottom: 1px solid var(--line);
  border-radius: var(--radius);
}

.calendar-day-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.day-number {
  display: block;
  font-weight: 800;
}

.calendar-add-block {
  display: grid;
  width: 26px;
  height: 26px;
  min-height: 26px;
  place-items: center;
  border: 1px dashed var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-weight: 900;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.calendar-day:hover .calendar-add-block,
.calendar-day.builder-open .calendar-add-block {
  opacity: 1;
  pointer-events: auto;
}

.calendar-add-block:hover {
  border-color: var(--green);
  color: var(--text);
}

.calendar-card {
  display: grid;
  gap: 6px;
  width: 100%;
  margin-bottom: 7px;
  padding: 8px;
  border: 0;
  border-radius: 7px;
  color: var(--text);
  text-align: left;
  background: rgba(112, 198, 154, 0.18);
}

.calendar-card.pending {
  background: rgba(230, 107, 100, 0.26);
}

.calendar-card.overdue {
  background: rgba(230, 107, 100, 0.36);
}

.calendar-card.done {
  background: rgba(112, 198, 154, 0.22);
}

.calendar-card strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.status-badge {
  display: inline-flex;
  width: fit-content;
  min-height: 22px;
  align-items: center;
  border-radius: 999px;
  padding: 0 8px;
  background: rgba(255, 255, 255, 0.18);
  font-size: 0.78rem;
}

table {
  width: 100%;
  min-width: 780px;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 11px 12px;
  text-align: left;
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
}

tr:last-child td {
  border-bottom: 0;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border-radius: 6px;
  padding: 0 9px;
  background: rgba(90, 167, 255, 0.18);
  color: #cfe6ff;
  font-weight: 700;
  font-size: 0.86rem;
}

.pill.green {
  background: rgba(112, 198, 154, 0.18);
  color: #c7f4db;
}

.pill.yellow {
  background: rgba(242, 188, 84, 0.2);
  color: #ffe2a7;
}

.pill.red {
  background: rgba(230, 107, 100, 0.18);
  color: #ffc1bd;
}

.icon-button {
  display: inline-grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
}

.list {
  display: grid;
  gap: 10px;
}

.list.compact {
  gap: 8px;
}

.item {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #131715;
}

.item-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.item small {
  display: block;
  color: var(--muted);
}

.inline-item {
  grid-template-columns: 1fr auto;
  align-items: center;
}

.error-gallery {
  display: grid;
  grid-template-columns: repeat(5, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.subject-card {
  position: relative;
  overflow: hidden;
  min-height: 166px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text);
  text-align: left;
}

.add-subject-card {
  display: grid;
  place-items: center;
  min-height: 166px;
  border-style: dashed;
  color: var(--muted);
  font-weight: 800;
}

.add-subject-card:hover {
  border-color: var(--blue);
  color: var(--text);
  background: var(--surface);
}

.card-delete-button {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 2;
  display: grid;
  width: 30px;
  height: 30px;
  min-height: 30px;
  place-items: center;
  padding: 0;
  border: 1px solid rgba(230, 107, 100, 0.42);
  border-radius: 999px;
  background: rgba(23, 26, 25, 0.86);
  color: #ffd7d4;
  font-weight: 900;
  opacity: 0;
  transition:
    opacity 160ms ease,
    transform 160ms ease,
    border-color 160ms ease;
}

.subject-card:hover .card-delete-button,
.card-delete-button:focus-visible {
  opacity: 1;
}

.card-delete-button:hover {
  border-color: var(--red);
  transform: scale(1.04);
}

.subject-card-main {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
}

.subject-card.active {
  border-color: var(--blue);
}

.subject-cover {
  height: 110px;
  background-position: center;
  background-size: cover;
  background:
    radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.22), transparent 28%),
    linear-gradient(135deg, #213b53, #171a19);
}

.subject-cover.fisica {
  background: radial-gradient(circle at 55% 45%, #ff7ac8, transparent 22%), linear-gradient(135deg, #301934, #1d3557);
}

.subject-cover.biologia {
  background: radial-gradient(circle at 50% 50%, #f2bc54, transparent 16%), linear-gradient(135deg, #15241c, #3d2e18);
}

.subject-cover.quimica {
  background: linear-gradient(135deg, #244c3a, #16315a 50%, #7a4427);
}

.subject-cover.matematica {
  background: radial-gradient(circle, transparent 28%, #f5f5f0 29%, transparent 30%), #050706;
}

.subject-cover.historia {
  background: linear-gradient(135deg, #52321f, #1d3557);
}

.subject-cover.geografia {
  background: radial-gradient(circle at 25% 30%, #f2bc54, transparent 8%), radial-gradient(circle at 70% 60%, #70c69a, transparent 12%), #111412;
}

.subject-cover.linguagens {
  background: linear-gradient(135deg, #5d4434, #1b1a17);
}

.subject-cover.redacao {
  background: linear-gradient(135deg, #26354a, #6b4b36);
}

.subject-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 11px 12px;
}

.mini-file {
  display: block;
  margin: 0 12px 10px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.82rem;
  text-align: center;
}

.mini-file input {
  display: none;
}

.subject-errors {
  display: none;
  margin-bottom: 16px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.subject-errors.active {
  display: block;
}

.subject-hero {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 6px;
  min-height: 130px;
  margin-bottom: 14px;
  padding: 20px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, #213b53, #171a19);
}

.subject-back {
  order: 0;
  width: fit-content;
}

.error-subject-page {
  display: grid;
  gap: 12px;
  max-width: 860px;
  margin-bottom: 18px;
}

.error-subject-cover {
  min-height: 180px;
  margin: -18px -18px 0;
  background:
    radial-gradient(circle at 50% 35%, rgba(255, 122, 200, 0.75), transparent 22%),
    linear-gradient(135deg, #301934, #1d3557);
  background-position: center;
  background-size: cover;
}

.error-subject-title {
  display: grid;
  gap: 6px;
  padding: 6px 0 10px;
}

.error-subject-title span {
  font-size: 2.4rem;
}

.error-subject-title h3,
.error-content-title h3 {
  margin: 0;
  font-size: 2rem;
}

.error-content-card {
  display: grid;
  grid-template-rows: 1fr auto;
  min-height: 164px;
  overflow: hidden;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text);
  text-align: left;
}

.error-content-body {
  display: grid;
  align-items: center;
  padding: 18px;
  background: #2a2c2b;
}

.error-content-body strong {
  font-size: 1.08rem;
  line-height: 1.35;
}

.error-content-card span {
  padding: 10px 12px;
  background: #242725;
  color: var(--muted);
  font-weight: 800;
}

.error-content-page {
  display: grid;
  gap: 16px;
  max-width: 760px;
}

.error-content-title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.error-accordion {
  display: grid;
  gap: 12px;
}

.error-accordion-item {
  display: grid;
  gap: 10px;
}

.error-accordion-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border: 0;
  background: transparent;
  color: var(--text);
  font-size: 1.15rem;
  font-weight: 900;
  text-align: left;
}

.error-accordion-item.open {
  padding: 14px;
  border-radius: var(--radius);
  background: #1a2a3a;
}

.error-accordion-body {
  display: grid;
  gap: 10px;
  color: #d8e2ec;
}

.error-alternatives {
  display: grid;
  gap: 8px;
}

.error-alternatives p,
.error-answer-grid p {
  margin: 0;
}

.error-answer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.error-image-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.error-image-actions input {
  display: none;
}

.image-edit-button {
  display: grid;
  width: 42px;
  height: 42px;
  min-height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  padding: 8px;
}

.image-edit-button img {
  width: 100%;
  height: 100%;
  filter: invert(1);
}

.subject-hero h3 {
  margin: 0;
  font-size: 2rem;
}

.error-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(180px, 1fr));
  gap: 12px;
}

.split-page .error-card-grid {
  grid-template-columns: repeat(2, minmax(240px, 1fr));
  gap: 14px;
}

.error-note-card {
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
}

.content-error-group {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.content-error-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.content-error-head h4 {
  margin: 0;
  font-size: 1rem;
}

.subject-study-grid,
.cycle-page {
  display: grid;
  gap: 16px;
}

.study-page-head,
.cycle-page-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
}

.study-page-head h2,
.cycle-page-head h2 {
  margin: 0;
  font-size: 1.6rem;
  text-transform: uppercase;
}

.split-page {
  display: grid;
  grid-template-columns: minmax(520px, 1.5fr) minmax(280px, 0.8fr);
  gap: 48px;
  min-height: 520px;
}

.split-main {
  display: grid;
  align-content: start;
  gap: 20px;
}

.split-main > .ghost-button {
  width: fit-content;
}

.split-aside {
  display: grid;
  align-content: start;
  gap: 8px;
  padding-top: 6px;
}

.split-aside h2 {
  margin: 0;
  font-size: 1.9rem;
  line-height: 1.15;
  text-transform: uppercase;
}

.split-aside small {
  color: var(--muted);
}

.page-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.import-inline {
  display: inline-grid;
  place-items: center;
  cursor: pointer;
}

.import-inline input {
  display: none;
}

.study-gallery {
  display: grid;
  grid-template-columns: repeat(5, minmax(180px, 1fr));
  gap: 12px;
}

.cycle-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(240px, 1fr));
  gap: 14px;
  max-width: 900px;
}

.cycle-card-wrap,
.add-card {
  min-height: 205px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text);
  text-align: left;
}

.cycle-card-wrap {
  position: relative;
}

.cycle-card {
  display: grid;
  grid-template-rows: 1fr auto;
  width: 100%;
  min-height: 205px;
  border: 0;
  border-radius: 0;
  padding: 0;
}

.cycle-card-body {
  padding: 34px 14px;
  background: #2a2c2b;
}

.cycle-preview {
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  border-radius: 4px;
  padding: 4px 8px;
  background: rgba(112, 198, 154, 0.18);
  color: #cde8d8;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cycle-card strong {
  padding: 10px 12px;
  background: #242725;
}

.add-card {
  display: grid;
  place-items: center;
  color: var(--muted);
  background: transparent;
  text-align: center;
}

.cycle-card-wrap:hover .card-delete-button {
  opacity: 1;
}

.inline-create {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto;
  gap: 12px;
  max-width: 650px;
}

.inline-create button {
  border: 0;
  border-radius: var(--radius);
  background: var(--blue);
  color: #07111d;
  font-weight: 800;
}

.add-lesson-form {
  grid-template-columns: minmax(180px, 1fr) minmax(240px, 1.5fr) auto;
  max-width: 760px;
}

.lesson-group {
  display: grid;
  gap: 10px;
  max-width: 900px;
}

.lesson-group.dragging {
  opacity: 0.48;
}

.lesson-group.drag-over {
  border-radius: var(--radius);
  outline: 2px solid var(--blue);
  outline-offset: 6px;
}

.lesson-group-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
}

.lesson-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 900;
  text-align: left;
}

.lesson-caret {
  display: inline-grid;
  width: 16px;
  place-items: center;
  color: var(--text);
}

.lesson-drag-handle {
  display: inline-grid;
  width: 22px;
  place-items: center;
  color: var(--muted);
  cursor: grab;
  font-size: 0.95rem;
}

.lesson-group.collapsed .lesson-group-body {
  display: none;
}

.lesson-group.collapsed .lesson-group-head .ghost-button {
  display: none;
}

.lesson-table {
  min-width: 720px;
}

.lesson-table:focus {
  outline: 2px solid var(--blue);
  outline-offset: -2px;
}

.lesson-table th:not(:first-child),
.lesson-table td:not(:first-child) {
  text-align: center;
}

.attachment {
  display: inline-block;
  width: fit-content;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text);
}

.attachment img {
  display: block;
  width: min(260px, 100%);
  max-height: 180px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.table-thumb {
  display: block;
  width: 52px;
  height: 38px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.image-thumb-button {
  display: inline-block;
  padding: 0;
  border: 0;
  background: transparent;
}

.image-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 56px 28px 28px;
  background: rgba(0, 0, 0, 0.82);
}

.image-modal img {
  max-width: min(100%, 1100px);
  max-height: calc(100vh - 92px);
  border-radius: var(--radius);
  object-fit: contain;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

.image-modal-close {
  position: absolute;
  top: 16px;
  left: 16px;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text);
  font-size: 1.4rem;
  line-height: 1;
}

.image-editor-modal {
  position: fixed;
  inset: 0;
  z-index: 130;
  display: grid;
  place-items: center;
  padding: 22px;
  background: rgba(0, 0, 0, 0.84);
}

.image-editor-card {
  display: grid;
  gap: 12px;
  width: min(920px, 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 14px;
}

.image-editor-head,
.image-editor-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.image-editor-card canvas {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #101211;
  touch-action: none;
}

.image-editor-controls {
  flex-wrap: wrap;
}

.image-editor-controls label {
  display: grid;
  gap: 5px;
  min-width: 180px;
  color: var(--muted);
  font-size: 0.82rem;
}

.image-editor-controls input {
  min-height: 34px;
}

.image-editor-controls button[data-editor-action="apply"] {
  min-height: 42px;
  border: 0;
  border-radius: var(--radius);
  background: var(--blue);
  color: #07111d;
  padding: 0 14px;
  font-weight: 900;
}

body.modal-open {
  overflow: hidden;
}

.breakdown {
  display: grid;
  gap: 12px;
}

.subject-row {
  display: grid;
  grid-template-columns: 110px 1fr auto;
  gap: 10px;
  align-items: center;
}

.subject-bar {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: #303630;
}

.subject-bar span {
  display: block;
  height: 100%;
  background: var(--yellow);
}

.empty {
  color: var(--muted);
  padding: 12px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
}

.chart-row {
  margin: 4px 0 16px;
}

canvas {
  width: 100%;
  max-width: 100%;
}

@media (max-width: 980px) {
  body {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .topbar,
  .panel-head {
    align-items: stretch;
    flex-direction: column;
  }

  .metrics-grid,
  .dashboard-grid,
  .form-grid,
  .task-board,
  .error-gallery,
  .error-card-grid,
  .split-page,
  .subject-study-grid,
  .study-gallery,
  .cycle-gallery,
  .inline-create,
  .add-lesson-form {
    grid-template-columns: 1fr;
  }

  .error-form {
    grid-template-areas:
      "date"
      "subject"
      "content"
      "source"
      "header"
      "image"
      "resolution"
      "a"
      "b"
      "c"
      "d"
      "e"
      "correct"
      "marked"
      "done"
      "reason"
      "fix"
      "submit";
  }

  .error-panel-controls,
  .error-content-title {
    align-items: stretch;
    flex-direction: column;
  }

  .error-answer-grid {
    grid-template-columns: 1fr;
  }

  .mock-form {
    grid-template-areas:
      "date"
      "name"
      "target"
      "correct"
      "total"
      "humanities"
      "languages"
      "nature"
      "math"
      "essay"
      "submit";
  }

  .essay-form {
    grid-template-areas:
      "date"
      "theme"
      "score"
      "image"
      "c1"
      "c2"
      "c3"
      "c4"
      "c5"
      "submit";
  }

  body.sidebar-collapsed {
    grid-template-columns: 1fr;
    grid-template-rows: 52px 1fr;
  }

  body.sidebar-collapsed .sidebar {
    position: sticky;
    overflow-x: auto;
  }

  .form-grid textarea {
    grid-column: auto;
  }

  .time-form,
  .study-timer-card,
  .planner-builder-form,
  .planner-builder-form.mock-block-form {
    grid-template-columns: 1fr;
  }

  .planner-type-grid {
    grid-template-columns: 1fr;
  }

  .planner-builder.calendar-popover {
    position: static;
    width: 100%;
    margin-top: 10px;
    box-shadow: none;
  }

  .study-timer-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .timeline-block {
    left: 64px;
    right: 10px;
  }

  .focus-screen {
    padding: 18px 18px 28px;
  }

  .focus-study-panel,
  .focus-todo-picker,
  .focus-question-form {
    grid-template-columns: 1fr;
  }

  .focus-question-form input[name="name"],
  .focus-question-form input[name="content"] {
    grid-column: auto;
  }

  .focus-todo-list {
    max-height: 220px;
  }

  .timeline-head {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .timeline-head small {
    text-align: left;
  }

  .timeline-controls {
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr) 38px auto;
  }

  .timeline-controls input {
    width: 100%;
  }
}

@media (max-width: 560px) {
  .app,
  .sidebar {
    padding: 18px;
  }

  .nav {
    grid-template-columns: 1fr 1fr;
  }

  .top-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

}

/* ========================================
   RESPONSIVE DESIGN - MOBILE & TABLET
   ======================================== */

/* Tablet (768px - 1024px) */
@media (max-width: 1024px) {
  body {
    zoom: 0.9;
    grid-template-columns: 240px 1fr;
  }

  .sidebar {
    width: 240px;
    padding: 20px 16px;
  }

  .main {
    padding: 20px 16px;
  }

  .task-board {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .task-column {
    min-height: 200px;
  }

  .calendar-grid {
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
  }

  .calendar-day {
    min-height: 60px;
    padding: 4px;
  }

  .form-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

/* Mobile Large (480px - 767px) */
@media (max-width: 767px) {
  body {
    zoom: 1;
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
    overflow-x: hidden;
  }

  body.sidebar-collapsed {
    grid-template-rows: 52px 1fr;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    transform: translateX(-100%);
    width: min(88vw, 300px);
    height: 100vh;
    z-index: 1100;
    transition: transform 0.25s ease;
    background: var(--bg);
    border-right: 1px solid var(--line);
    box-shadow: 2px 0 18px rgba(0, 0, 0, 0.35);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    opacity: 0;
    visibility: hidden;
    z-index: 1050;
    transition: opacity 0.25s ease, visibility 0.25s ease;
  }

  .sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
  }

  .sidebar-toggle {
    display: flex;
    position: fixed;
    top: 12px;
    left: 12px;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    z-index: 1110;
    border-radius: 50%;
    background: var(--surface);
    border: 1px solid var(--line);
    font-size: 20px;
    color: var(--text);
  }

  .main {
    padding: 16px 12px;
    margin-top: 60px;
  }

  .nav {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }

  .nav-item {
    padding: 12px 8px;
    font-size: 14px;
  }

  .top-actions {
    flex-direction: column;
    gap: 12px;
  }

  .top-actions > * {
    width: 100%;
  }

  .dashboard-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .subject-card {
    padding: 16px;
  }

  .task-board {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .task-column {
    min-height: 180px;
  }

  .task-card {
    padding: 12px;
    font-size: 14px;
  }

  .calendar-grid {
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
  }

  .calendar-day {
    min-height: 50px;
    padding: 2px;
    font-size: 12px;
  }

  .form-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .table-responsive table {
    min-width: 600px;
  }

  .modal {
    margin: 20px;
    max-height: calc(100vh - 40px);
    overflow-y: auto;
  }

  .panel {
    margin-bottom: 20px;
  }

  .collapsible-section {
    margin-bottom: 16px;
  }

  .focus-todo-list {
    gap: 8px;
  }

  .focus-todo-item {
    padding: 12px;
    font-size: 14px;
  }

  .chart-container {
    height: 250px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .stat-card {
    padding: 16px;
  }

  .stat-value {
    font-size: 24px;
  }

  .stat-label {
    font-size: 12px;
  }
}

/* Mobile Small (320px - 479px) */
@media (max-width: 479px) {
  body {
    zoom: 1;
  }

  .sidebar {
    width: 100vw;
  }

  .main {
    padding: 12px 8px;
    margin-top: 60px;
  }

  .nav {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
  }

  .nav-item {
    padding: 10px 6px;
    font-size: 13px;
    min-height: 44px;
  }

  .page-title {
    font-size: 20px;
    margin-bottom: 16px;
  }

  .dashboard-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .subject-card {
    padding: 12px;
  }

  .subject-cover {
    height: 80px;
  }

  .subject-card-footer {
    padding: 8px 12px;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .task-board {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .task-column {
    min-height: 150px;
  }

  .task-column-head {
    padding: 8px;
    font-size: 14px;
  }

  .task-card {
    padding: 10px;
    font-size: 13px;
  }

  .calendar-grid {
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
  }

  .calendar-day {
    min-height: 40px;
    padding: 2px;
    font-size: 11px;
  }

  .calendar-day-number {
    font-size: 12px;
  }

  .form-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-group {
    margin-bottom: 12px;
  }

  .btn {
    padding: 12px 16px;
    font-size: 14px;
    min-height: 44px;
  }

  .btn-small {
    padding: 8px 12px;
    font-size: 13px;
  }

  .input, .select, .textarea {
    padding: 12px;
    font-size: 16px; /* Prevent zoom on iOS */
    min-height: 44px;
  }

  .table-responsive table {
    min-width: 500px;
    font-size: 12px;
  }

  .modal {
    margin: 10px;
    max-height: calc(100vh - 20px);
  }

  .modal-content {
    padding: 16px;
  }

  .panel {
    margin-bottom: 16px;
  }

  .panel-header {
    padding: 12px 16px;
  }

  .panel-title {
    font-size: 16px;
  }

  .collapsible-section {
    margin-bottom: 12px;
  }

  .collapse-toggle {
    padding: 10px 12px;
    font-size: 14px;
  }

  .focus-todo-list {
    gap: 6px;
  }

  .focus-todo-item {
    padding: 10px;
    font-size: 13px;
  }

  .chart-container {
    height: 200px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .stat-card {
    padding: 12px;
    text-align: center;
  }

  .stat-value {
    font-size: 20px;
  }

  .stat-label {
    font-size: 11px;
  }

  .progress-bar {
    height: 8px;
  }

  .badge {
    padding: 4px 8px;
    font-size: 11px;
  }

  .icon-button {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }

  .mini-file {
    margin: 0 0 8px;
    padding: 8px;
    font-size: 12px;
  }
}

/* Touch-friendly interactions */
@media (hover: none) and (pointer: coarse) {
  .btn, .icon-button, .nav-item {
    min-height: 44px;
    min-width: 44px;
  }

  .task-card {
    min-height: 60px;
  }

  .subject-card {
    min-height: 120px;
  }

  .calendar-day {
    min-height: 44px;
  }

  .form-group {
    margin-bottom: 16px;
  }

  .input:focus, .select:focus, .textarea:focus {
    outline: 2px solid var(--blue);
    outline-offset: 2px;
  }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .sidebar, .main {
    border-width: 0.5px;
  }

  .task-card, .subject-card {
    border-width: 0.5px;
  }
}

/* Landscape orientation on mobile */
@media (max-height: 500px) and (orientation: landscape) {
  .sidebar {
    position: absolute;
    width: 200px;
  }

  body {
    grid-template-columns: 200px 1fr;
  }

  .main {
    margin-top: 0;
  }

  .sidebar-toggle {
    display: none;
  }
}