.drive-page {
  padding-bottom: 72px;
}
.drive-dashboard {
  padding: 26px;
}
.drive-meter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.drive-meter strong {
  display: block;
  font-size: 27px;
  margin-top: 5px;
}
.drive-meter small,
.drive-row small {
  display: block;
  color: var(--muted);
}
.drive-meter progress {
  width: min(430px, 48%);
  height: 10px;
  accent-color: var(--accent);
}
.drive-divider {
  height: 1px;
  background: var(--line);
  margin: 25px 0;
}
.drive-upload-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 15px;
}
.drive-upload-heading h2 {
  margin: 0;
}
.drive-upload-heading p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 13px;
}
.drive-upload-heading > span {
  color: var(--muted);
  font-size: 12px;
}
.drive-upload-grid {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(210px, 280px) auto;
  align-items: stretch;
  gap: 12px;
}
.drive-file-picker,
.drive-destination {
  min-height: 68px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #081521;
}
.drive-file-picker {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 12px 15px;
  cursor: pointer;
  min-width: 0;
}
.drive-file-picker:hover,
.drive-file-picker.dragging {
  border-color: var(--accent);
  background: #0b1c2b;
}
.drive-file-picker.has-file {
  border-color: #9ef0cb66;
}
.upload-symbol {
  width: 39px;
  height: 39px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 10px;
  background: #73d8ff14;
  color: var(--accent);
  font-size: 26px;
}
.drive-file-picker > span:last-of-type {
  display: grid;
  min-width: 0;
}
.drive-file-picker small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--muted);
  max-width: 100%;
}
.drive-destination {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 10px;
  padding: 11px 13px;
}
.drive-destination > span {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}
.drive-destination select {
  margin: 0;
  min-width: 0;
}
.drive-upload-button {
  min-width: 130px;
}
.drive-browser-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 22px 0 12px;
}
.drive-browser-head > span {
  color: var(--muted);
  font-size: 13px;
}
.drive-tabs {
  display: flex;
  gap: 8px;
  overflow: auto;
}
.drive-tabs button,
.lesson-nav button {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  padding: 0.72rem 1rem;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
}
.drive-tabs button.active,
.lesson-nav button.active {
  background: var(--accent);
  color: #07111c;
}
.file-browser {
  padding: 5px 22px;
}
.drive-row {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  align-items: center;
  gap: 15px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}
.drive-row:last-child {
  border-bottom: 0;
}
.file-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: #73d8ff10;
  border: 1px solid #73d8ff24;
  color: var(--accent);
  font-size: 15px;
  font-weight: 800;
}
.drive-file-info {
  min-width: 0;
}
.drive-file-info strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.drive-file-info small {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 4px;
}
.drive-row .actions {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.drive-row .button {
  padding: 8px 12px;
}
.learning-layout,
.lesson-actions {
  display: flex;
  gap: 1rem;
}
.learning-layout {
  align-items: flex-start;
}
.lesson-nav {
  width: 280px;
  position: sticky;
  top: 90px;
}
.lesson-nav button {
  width: 100%;
  text-align: left;
  margin: 0.3rem 0;
  border-radius: 10px;
}
.lesson-nav progress {
  width: 100%;
  margin-top: 1rem;
}
.lesson-content {
  flex: 1;
  min-height: 520px;
}
.lesson-content pre {
  padding: 1rem;
  overflow: auto;
  border-radius: 12px;
  background: #07111c;
}
.lesson-actions {
  margin-top: 2rem;
  flex-direction: column;
}
.permission-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
}
.permission-grid label {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}
.admin-drive-list {
  max-height: 420px;
  overflow: auto;
}
@media (max-width: 800px) {
  .drive-upload-grid {
    grid-template-columns: 1fr 1fr;
  }
  .drive-file-picker {
    grid-column: 1/-1;
  }
  .drive-upload-button {
    min-height: 54px;
  }
  .drive-row {
    grid-template-columns: 44px minmax(0, 1fr);
  }
  .drive-row .actions {
    grid-column: 2;
    justify-content: flex-start;
  }
  .learning-layout {
    display: block;
  }
  .lesson-nav {
    width: auto;
    position: static;
    margin-bottom: 1rem;
  }
  .drive-meter {
    align-items: flex-start;
    flex-direction: column;
  }
  .drive-meter progress {
    width: 100%;
  }
}
@media (max-width: 520px) {
  .drive-dashboard {
    padding: 19px;
  }
  .drive-upload-heading {
    align-items: flex-start;
    flex-direction: column;
  }
  .drive-upload-grid {
    grid-template-columns: 1fr;
  }
  .drive-file-picker {
    grid-column: auto;
  }
  .drive-destination {
    min-height: 64px;
  }
  .drive-upload-button {
    width: 100%;
  }
  .drive-browser-head {
    align-items: flex-end;
  }
  .file-browser {
    padding: 4px 15px;
  }
  .drive-row {
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 11px;
  }
  .file-icon {
    width: 38px;
    height: 38px;
  }
  .drive-row .actions {
    grid-column: 1/-1;
  }
  .drive-row .actions .button {
    flex: 1;
  }
  .drive-file-info strong {
    white-space: normal;
    word-break: break-word;
  }
}