/* Screen-only presentation: authored paper layouts and PDF engines are unchanged. */
@media screen {
  .skillr-sheet {
    margin: 0;
    background: #f4f7fb;
    color: #203047;
    font-family: "Segoe UI", Arial, Helvetica, sans-serif;
    line-height: 1.6;
    letter-spacing: 0;
  }

  .skillr-sheet .resource-sheet-shell {
    box-sizing: border-box;
    width: 100%;
    max-width: 980px;
    margin-inline: auto;
    padding: 20px 24px 40px;
  }

  .skillr-sheet .lesson-support,
  .skillr-sheet .resource-sheet-breadcrumb {
    box-sizing: border-box;
    max-width: 932px;
    margin: 16px auto;
    border-radius: 8px;
  }

  .skillr-sheet .resource-sheet-header {
    margin: 16px 0 24px;
    padding: 24px 0;
    border: 0;
    border-bottom: 2px solid #d7e3f2;
    border-radius: 0;
    background: transparent;
    color: #203047;
    box-shadow: none;
    text-align: left;
  }

  .skillr-sheet .resource-sheet-header h1 {
    max-width: 38ch;
    margin: 8px 0 12px;
    color: #173968;
    font-size: 1.875rem;
    line-height: 1.25;
    letter-spacing: 0;
    overflow-wrap: break-word;
    text-wrap: balance;
  }

  .skillr-sheet .resource-sheet-header > p {
    max-width: 75ch;
    line-height: 1.6;
  }

  .skillr-sheet .resource-sheet-header :is(.eyebrow, .hw-kicker, .k) {
    color: #173968;
    font-size: .875rem;
    letter-spacing: 0;
  }

  .skillr-sheet .resource-sheet-controls {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: stretch;
    gap: 8px;
    margin: 16px 0;
    padding: 0;
  }

  .skillr-sheet .resource-sheet-controls > :is(a, button),
  .skillr-sheet .resource-sheet-header > :is(a.button, button) {
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 0;
    min-height: 44px;
    max-width: 100%;
    padding: 10px 14px;
    border: 1px solid #d7e3f2;
    border-radius: 8px;
    background: #fff;
    color: #173968;
    font: 700 .9375rem/1.4 "Segoe UI", Arial, Helvetica, sans-serif;
    text-align: center;
    text-decoration: none;
    white-space: normal;
    overflow-wrap: anywhere;
    box-shadow: none;
    cursor: pointer;
  }

  .skillr-sheet .resource-sheet-header > :is(a.button, button) {
    margin: 8px 8px 0 0;
  }

  .skillr-sheet .resource-sheet-controls > button,
  .skillr-sheet .resource-sheet-header > button {
    border-color: #2457d6;
    background: #2457d6;
    color: #fff;
  }

  .skillr-sheet .resource-sheet-controls > :is(a, button):hover,
  .skillr-sheet .resource-sheet-header > :is(a.button, button):hover {
    border-color: #2457d6;
    background: #eaf1ff;
    color: #173968;
    transform: none;
  }

  .skillr-sheet :is(a, button, summary):focus-visible {
    outline: 3px solid #2457d6;
    outline-offset: 3px;
  }

  .skillr-sheet .resource-sheet-header :is(.brandbar, .worksheet-print-tip) {
    border-color: #d7e3f2;
    border-radius: 8px;
    background: #fff;
    color: #203047;
  }

  .skillr-sheet .resource-sheet-header :is(.brandmark, .brandmark span, .brandbar small) {
    color: #173968;
  }

  .skillr-sheet .worksheet-meta span {
    border-color: #d7e3f2;
    border-radius: 8px;
    background: #fff;
    color: #203047;
  }

  .skillr-sheet .resource-sheet-header :is(.hw-meta, .meta, .m) {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
  }

  .skillr-sheet .resource-sheet-header :is(.hw-meta, .meta, .m) > div {
    min-width: 0;
    padding: 12px;
    border: 0;
    border-radius: 0;
    border-left: 3px solid #d7e3f2;
    background: transparent;
    overflow-wrap: break-word;
  }

  .skillr-sheet :is(.hw-brand, .skillr-homework-brand) {
    border-radius: 8px;
    box-shadow: none;
  }

  .skillr-sheet .resource-sheet-section {
    margin: 16px 0;
    padding: 20px;
    border: 1px solid #d7e3f2;
    border-radius: 8px;
    background: #fff;
    box-shadow: none;
  }

  .skillr-sheet .resource-sheet-section > h2 {
    margin-top: 0;
    color: #173968;
    font-size: 1.375rem;
    line-height: 1.4;
    letter-spacing: 0;
    overflow-wrap: break-word;
  }
}

@media screen and (max-width: 640px) {
  .skillr-sheet .resource-sheet-shell {
    padding: 12px 16px 28px;
  }

  .skillr-sheet > :is(.lesson-support, .resource-sheet-breadcrumb) {
    margin-inline: 16px;
  }

  .skillr-sheet .resource-sheet-header {
    padding: 16px 0;
  }

  .skillr-sheet .resource-sheet-header h1 {
    font-size: 1.5rem;
  }

  .skillr-sheet .resource-sheet-header :is(.hw-meta, .meta, .m) {
    grid-template-columns: minmax(0, 1fr);
  }

  .skillr-sheet .resource-sheet-section {
    padding: 16px;
  }
}