/* RESPONSIVE */

@media (max-width: 1100px) {

  .subjects-grid,
  .custom-flashcards-grid {
    grid-template-columns:
      repeat(2, 1fr);
  }

  .hero-dashboard-card {
    grid-template-columns:
      1fr 240px;
  }

  .subject-content-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {

  :root {
    --sidebar: 0px;
  }

  .sidebar {
    width: 244px;

    transform:
      translateX(-102%);

    box-shadow:
      20px 0 50px
      rgba(0,0,0,.08);

    transition:
      transform .22s ease;
  }

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

  .main-area {
    margin-left: 0;
  }

  .mobile-header {
    height: 62px;

    display: grid;

    grid-template-columns:
      40px 1fr 40px;

    align-items: center;

    padding: 0 18px;

    background: white;

    border-bottom:
      1px solid var(--border);
  }

  .mobile-header-brand {
    justify-self: center;

    display: flex;
    align-items: center;
    gap: 8px;

    font-size: 13px;
  }

  .mobile-header > .avatar {
    justify-self: end;
  }

  .page {
    width:
      min(
        100% - 34px,
        1000px
      );

    padding:
      35px 0 70px;
  }

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

  .auth-page {
    grid-template-columns: 1fr;
  }

  .auth-brand-panel {
    display: none;
  }

  .auth-form-panel {
    min-height: 100vh;

    padding:
      35px 22px;
  }

  .mobile-auth-logo {
    display: flex;
    align-items: center;
    gap: 10px;

    margin-bottom: 45px;
  }
}

@media (max-width: 700px) {

  .page-header,
  .subject-header,
  .flashcard-tab-header,
  .analysis-toolbar {
    flex-direction: column;
  }

  .page-header {
    display: flex;
  }

  .page-header .button {
    width: 100%;
  }

  .hero-dashboard-card {
    grid-template-columns: 1fr;

    min-height: auto;

    padding:
      28px 25px;
  }

  .hero-visual {
    display: none;
  }

  .metric-grid,
  .subject-metrics {
    grid-template-columns:
      repeat(2, 1fr);
  }

  .subjects-grid,
  .custom-flashcards-grid,
  .concept-grid {
    grid-template-columns: 1fr;
  }

  .study-summary {
    display: grid;

    grid-template-columns:
      repeat(3, 1fr);

    gap: 20px;

    padding: 22px;
  }

  .study-summary-main {
    grid-column: 1 / -1;

    min-width: 0;
  }

  .study-summary-divider {
    display: none;
  }

  .study-summary-stat {
    min-width: 0;
  }

  .subject-header-main {
    align-items: flex-start;
  }

  .subject-header-actions {
    width: 100%;
  }

  .subject-header-actions .button {
    flex: 1 1 120px;
  }

  .subject-tabs {
    width: 100%;

    overflow-x: auto;
  }

  .subject-tab {
    flex:
      0 0 auto;
  }

  .upload-panel {
    grid-template-columns:
      40px 1fr;
  }

  .upload-panel
  .upload-button {
    grid-column: 1 / -1;

    width: 100%;
  }

  .document-row {
    grid-template-columns:
      34px 1fr;

    align-items: start;
  }

  .document-actions {
    grid-column: 2;

    margin-top: 5px;
  }

  .session-header {
    padding:
      0 16px;
  }

  .session-stage {
    padding:
      22px 15px;
  }

  .session-card {
    min-height: 330px;

    padding:
      30px 22px;
  }

  .session-rating {
    grid-template-columns:
      repeat(2, 1fr);
  }

  .session-question {
    padding: 22px;
  }
}

@media (max-width: 430px) {

  .metric-grid,
  .subject-metrics {
    grid-template-columns: 1fr 1fr;
  }

  .metric-card {
    padding: 17px;
  }

  .study-summary {
    grid-template-columns:
      repeat(3, 1fr);
  }

  .subject-big-icon {
    width: 48px;
    height: 48px;

    flex-basis: 48px;
  }
}