:root {
  font-family: "Segoe UI", Arial, sans-serif;
  color: #1d293b;
  background: #fff;
  font-size: 16px;
  line-height: 1.6;
  --line: #e2e7ef;
  --muted: #627086;
  --accent: #2855a0;
  --accent-dark: #1b417d;
  --light: #f6f8fb;
  --correct: #236441;
  --wrong: #ad3535;
}
* { box-sizing: border-box; }
body { margin: 0; }
a { color: var(--accent); text-underline-offset: 3px; }
button, input, select, textarea { font: inherit; }
button, a, input, select, summary { -webkit-tap-highlight-color: transparent; }
button {
  cursor: pointer;
  border: 1px solid #cfd7e3;
  border-radius: 8px;
  background: #fff;
  color: #25354c;
  padding: 10px 17px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  transition: background .15s, border-color .15s;
}
button:hover { background: var(--light); border-color: #aab9cf; }
button:disabled { opacity: .45; cursor: default; }
.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.learning-feedback { margin-top: 18px; padding: 16px 18px; border: 1px solid #a7d4b6; border-radius: 8px; background: #f1faf4; color: #205c39; }
.learning-feedback.is-wrong { border-color: #e4c69b; background: #fff9ee; color: #755220; }
.learning-feedback[hidden] { display: none; }
.learning-feedback p { margin: 8px 0 0; }
.option:has(input:disabled) { cursor: default; }
.quiet { border-color: transparent; color: var(--muted); padding: 7px 9px; background: transparent; }
.quiet:hover { border-color: transparent; color: var(--accent); }
.danger { color: var(--wrong); }
:focus-visible { outline: 3px solid #89afea; outline-offset: 3px; }
input[type=text], input[type=search], select {
  border: 1px solid #c8d2df;
  border-radius: 8px;
  background: #fff;
  padding: 11px 13px;
  color: #1d293b;
  max-width: 100%;
}
input[type=text]:focus, input[type=search]:focus, select:focus { border-color: var(--accent); }
input[type=radio], input[type=checkbox] {
  accent-color: var(--accent);
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
}
label { cursor: pointer; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: 36px; letter-spacing: -.9px; line-height: 1.25; font-weight: 650; margin-bottom: 14px; }
h2 { font-size: 21px; line-height: 1.4; font-weight: 650; margin-bottom: 16px; letter-spacing: -.3px; }
h3 { font-size: 17px; font-weight: 650; margin-bottom: 8px; }
p { margin-bottom: 16px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.eyebrow { font-size: 13px; font-weight: 500; color: var(--muted); margin-bottom: 12px; }
.site-header { border-bottom: 1px solid var(--line); }
.header-inner {
  max-width: 1180px;
  margin: auto;
  min-height: 80px;
  padding: 16px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 13px; font-size: 20px; font-weight: 650; color: #1d293b; text-decoration: none; white-space: nowrap; }
.brand-icon { width: 29px; height: 29px; color: var(--accent); }
nav { display: flex; gap: 6px; }
nav a { color: var(--muted); font-size: 14px; font-weight: 500; text-decoration: none; padding: 9px 17px; border-radius: 7px; }
nav a:hover { color: var(--accent); background: var(--light); }
nav a[aria-current=page] { color: var(--accent); background: #eef3fb; font-weight: 600; }
main { max-width: 1180px; margin: auto; padding: 46px 28px 64px; min-height: calc(100vh - 164px); }
.site-footer { max-width: 1124px; border-top: 1px solid var(--line); padding: 22px 0; margin: 0 auto; display: flex; justify-content: space-between; gap: 18px; color: var(--muted); font-size: 12px; }
.intro { max-width: 780px; margin-bottom: 36px; }
.intro > p:last-child { color: var(--muted); margin-bottom: 0; }
.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.section-heading h2, .section-heading p { margin: 0; }
.bank-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.bank-card {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  background: #fff;
  box-shadow: 0 3px 12px #1b365408;
  transition: border-color .15s, box-shadow .15s;
}
.bank-card:hover { border-color: #bccbe0; box-shadow: 0 5px 18px #1b365410; }
.bank-card-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 20px; }
.bank-kicker { color: var(--muted); font-size: 11px; font-weight: 650; letter-spacing: 1.4px; margin: 0; }
.question-count { color: #4f6382; background: #f1f4f9; border-radius: 5px; padding: 3px 9px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.bank-title { font-size: 25px; letter-spacing: -.5px; margin: 0 0 5px; color: #1d293b; }
.bank-sub { color: var(--muted); font-size: 14px; margin-bottom: 23px; }
.bank-parts { border-top: 1px solid var(--line); padding-top: 17px; margin: 0 0 22px; font-size: 14px; }
.bank-parts > div { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 5px 0; }
.bank-parts dt { color: var(--muted); }
.bank-parts dd { margin: 0; font-weight: 600; font-variant-numeric: tabular-nums; }
.bank-start { width: 100%; display: flex; align-items: center; justify-content: space-between; padding: 11px 15px; }
.bank-start > span:last-child { font-size: 18px; font-weight: 400; line-height: 1; }
.library-note { color: var(--muted); font-size: 13px; margin: 20px 0 0; }
.resume {
  border: 1px solid #d3e0f2;
  border-radius: 12px;
  background: #f6f9fe;
  padding: 20px 24px;
  margin: 0 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.resume-copy { min-width: 0; overflow-wrap: anywhere; }
.resume-copy strong { display: block; font-size: 18px; font-weight: 650; margin-bottom: 4px; }
.resume-copy p { margin-bottom: 0; }
.resume-label { font-size: 10px; font-weight: 700; letter-spacing: 1px; color: var(--accent); margin-bottom: 5px !important; }
.resume-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.section-block { margin-top: 36px; }
.toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin: 22px 0; }
.toolbar .spacer { flex: 1; }
.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: 10px; max-width: 100%; }
table { width: 100%; border-collapse: collapse; text-align: left; font-size: 14px; }
th { font-size: 12px; color: var(--muted); font-weight: 600; background: var(--light); white-space: nowrap; }
td, th { padding: 16px 20px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
.note { border-left: 3px solid #9baecc; border-radius: 0 6px 6px 0; background: var(--light); padding: 12px 15px; margin: 16px 0; font-size: 14px; }
.setup { max-width: 560px; }
.field { display: block; margin: 18px 0; }
.field > span { display: block; font-size: 14px; font-weight: 600; margin-bottom: 7px; }
.field input, .field select { width: 100%; }
.actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 26px; flex-wrap: wrap; }
.error { color: var(--wrong); font-size: 14px; }
.error:empty { display: none; }
.success { color: var(--correct); }
dialog { width: min(590px, calc(100% - 32px)); border: 1px solid var(--line); border-radius: 14px; padding: 30px; color: #1d293b; max-height: 90vh; overflow: auto; box-shadow: 0 18px 70px #12244226; }
dialog::backdrop { background: #1c2a415c; }
dialog h2 { padding-right: 26px; font-size: 24px; }
.close-dialog { position: absolute; top: 16px; right: 16px; font-size: 23px; font-weight: 400; line-height: 1; padding: 5px 9px; color: var(--muted); border-color: transparent; }
.exam-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.exam-heading h1 { font-size: 28px; margin-bottom: 12px; }
.exam-heading .eyebrow { margin-bottom: 7px; }
.exam-meta { display: flex; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
.exam-meta p { margin-bottom: 12px; max-width: 100%; overflow-wrap: anywhere; }
#elapsed { font-variant-numeric: tabular-nums; }
.exam-bar { position: sticky; top: 0; background: #fff; z-index: 5; padding: 12px 0 0; margin: 10px 0 0; }
.tab-row { display: flex; gap: 4px; align-items: center; padding: 5px; border: 1px solid var(--line); background: var(--light); border-radius: 10px; margin-bottom: 10px; }
.tab-row button { border: 1px solid transparent; padding: 10px 16px; background: transparent; color: var(--muted); font-size: 13px; font-weight: 500; }
.tab-row button[aria-selected=true] { color: var(--accent); border-color: #d9e2ef; background: #fff; font-weight: 600; box-shadow: 0 1px 3px #23374f08; }
.progress-track { height: 3px; background: #edf1f7; border-radius: 3px; overflow: hidden; }
.progress-value { height: 100%; background: var(--accent); transition: width .15s; }
.exam-layout { display: grid; grid-template-columns: minmax(0, 1fr) 216px; gap: 28px; margin-top: 24px; }
.exam-layout > section { min-width: 0; }
.question { padding: 24px; margin: 0 0 18px; border: 1px solid var(--line); border-radius: 12px; background: #fff; scroll-margin-top: 100px; }
.question-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 13px; color: var(--muted); margin-bottom: 15px; }
.question-top strong { font-size: 14px; color: var(--accent); font-weight: 650; }
.question-top .quiet { font-size: 12px; font-weight: 500; }
.question-prompt { font-size: 17px; line-height: 1.75; margin: 0 0 20px; white-space: pre-line; overflow-wrap: anywhere; }
.options { display: grid; gap: 9px; border: 0; padding: 0; margin: 0; min-width: 0; }
.options legend { padding: 0 0 9px; font-size: 12px; }
.option { display: flex; align-items: flex-start; gap: 12px; padding: 12px 15px; border: 1px solid var(--line); border-radius: 8px; font-size: 16px; line-height: 1.6; }
.option:hover { background: var(--light); border-color: #bacbe3; }
.option:has(input:checked) { border-color: #80a3d7; background: #f0f5fd; }
.option.learn-correct, .option.learn-correct:has(input:checked) { border-color: #73ad87; background: #f1faf4; }
.option.learn-wrong, .option.learn-wrong:has(input:checked) { border-color: #d79b9b; background: #fff4f4; }
.option input { margin-top: 4px; }
.option-letter { font-weight: 650; margin-right: 8px; color: #455875; }
.option:has(input:checked) .option-letter { color: var(--accent); }
.question figure, .review-question figure { margin: 14px 0 20px; }
.question figure img, .review-question figure img { display: block; max-width: 100%; height: auto; max-height: 420px; object-fit: contain; object-position: left; }
.question .table-wrap { margin: 14px 0 20px; }
.question table { font-size: 13px; }
.question td, .question th { padding: 9px 12px; }
.short-field { display: flex; align-items: center; gap: 12px; max-width: 380px; margin: 7px 0 10px; }
.short-field input { width: 220px; }
.fill-fields { display: flex; flex-wrap: wrap; gap: 12px; }
.fill-field { display: flex; flex-direction: column; gap: 5px; min-width: 0; width: 210px; max-width: 100%; font-size: 13px; color: var(--muted); }
.fill-field input { width: 100%; color: #1d293b; }
.question textarea { display: block; width: 100%; min-height: 100px; resize: vertical; border: 1px solid #c8d2df; border-radius: 8px; background: #fff; color: #1d293b; padding: 12px 14px; margin-top: 7px; line-height: 1.65; }
.part-select { display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--muted); margin-bottom: 12px; }
.part-select span { white-space: nowrap; }
.part-select select { flex: 1; min-width: 0; font-weight: 600; color: var(--accent); }
.part-instruction { font-size: 14px; color: var(--muted); margin: 0 0 18px; }
.tf-row { border-top: 1px solid var(--line); padding: 15px 0; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px; align-items: start; }
.tf-row:last-child { padding-bottom: 0; }
.tf-text { font-size: 16px; overflow-wrap: anywhere; }
.tf-choices { display: flex; gap: 7px; }
.tf-choice { display: flex; align-items: center; gap: 7px; font-size: 13px; padding: 7px 9px; border: 1px solid #d8e0ea; border-radius: 6px; white-space: nowrap; }
.tf-choice:has(input:checked) { border-color: #80a3d7; background: #f0f5fd; color: var(--accent); }
.tf-choice input { margin: 0; width: 16px; height: 16px; flex-basis: 16px; }
.navigator { align-self: start; position: sticky; top: 100px; font-size: 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--light); padding: 18px; }
.navigator h3 { font-size: 14px; margin-bottom: 15px; }
.number-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 7px; }
.number-grid button { padding: 7px 0; min-height: 37px; font-size: 12px; font-weight: 500; background: #fff; }
.number-grid button.answered { background: #e8f0fc; border-color: #9ab5db; color: #204b8c; font-weight: 600; }
.number-grid button.partial { border-color: #9aaac0; border-style: dashed; }
.number-grid button.flagged::after { content: '•'; color: #94611b; padding-left: 2px; }
.legend { display: flex; align-items: center; gap: 7px; margin-top: 12px; color: var(--muted); }
.legend i { display: inline-block; width: 10px; height: 10px; border: 1px solid #9ab5db; background: #e8f0fc; border-radius: 2px; }
.legend i.empty { background: #fff; border-color: #cfd7e3; }
.navigator > p { font-size: 12px; margin: 12px 0; }
.navigator > button { font-size: 12px; padding: 7px 0; text-align: left; }
.part-actions { display: flex; justify-content: space-between; margin-top: 24px; gap: 12px; }
.score-summary { display: flex; gap: 35px; align-items: center; margin: 28px 0 24px; border: 1px solid #dae4f2; border-radius: 12px; background: #f5f8fd; padding: 26px 28px; }
.score-big { font-size: 58px; letter-spacing: -2px; line-height: 1.1; font-weight: 650; color: var(--accent); white-space: nowrap; font-variant-numeric: tabular-nums; }
.score-big span { font-size: 20px; letter-spacing: 0; font-weight: 400; color: var(--muted); }
.score-summary p { margin: 3px 0; font-size: 15px; }
.score-summary p.small { font-size: 13px; }
.result-table td:last-child { font-weight: 650; color: var(--accent); }
.review-controls { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin: 22px 0 16px; }
.review-question { padding: 24px; margin: 0 0 16px; border: 1px solid var(--line); border-radius: 10px; }
.review-question .question-prompt { font-size: 16px; }
.answer-line { font-size: 14px; margin: 5px 0; }
.explanation { font-size: 14px; background: var(--light); border-radius: 7px; padding: 13px 15px; margin: 14px 0 0; white-space: pre-line; }
.badge { border: 1px solid #d1d9e4; border-radius: 5px; font-size: 12px; padding: 3px 9px; color: var(--muted); white-space: nowrap; }
.badge.correct { border-color: #c3dfcf; background: #f0f8f3; color: var(--correct); }
.badge.wrong { border-color: #edcccc; background: #fdf3f3; color: var(--wrong); }
.badge.pending { border-color: #dfd3b1; background: #faf7ef; color: #77602a; }
details { margin: 16px 0; }
summary { cursor: pointer; font-weight: 600; font-size: 13px; color: #455875; }
details[open] > summary { margin-bottom: 12px; }
.empty-state { padding: 40px 24px; border: 1px dashed #cbd5e2; border-radius: 10px; color: var(--muted); text-align: center; }
.toast { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); max-width: calc(100% - 32px); background: #25354c; color: #fff; padding: 12px 20px; border-radius: 9px; font-size: 14px; box-shadow: 0 4px 20px #152c4826; z-index: 20; }
.skip-link { position: absolute; top: -100px; left: 20px; background: #fff; padding: 10px; z-index: 25; }
.skip-link:focus { top: 10px; }
.topic-table td, .topic-table th { padding: 12px 18px; }
.history-name { font-weight: 650; margin-bottom: 4px; }
.history-table td:last-child { white-space: nowrap; }
button[aria-pressed=true] { color: var(--accent); font-weight: 650; background: #eef3fb; }
.compact-score { font-variant-numeric: tabular-nums; font-weight: 600; }
.storage-warning { font-size: 14px; color: var(--wrong); margin: 16px 0; }
.essay-open { display: block; text-align: center; font-size: 13px; margin-top: 14px; text-decoration: none; }
.essay-open:hover, .result-essay-link:hover { text-decoration: underline; }
.result-essay-link { display: inline-block; font-size: 14px; text-decoration: none; }
main[data-view=essay] { max-width: 1060px; }
.essay-subjects { display: flex; gap: 8px; flex-wrap: wrap; margin: -10px 0 30px; }
.essay-subjects a { text-decoration: none; border: 1px solid var(--line); border-radius: 8px; padding: 9px 20px; font-size: 14px; color: var(--muted); }
.essay-subjects a[aria-current=page] { color: var(--accent); border-color: #b4c8e7; background: #f0f5fd; font-weight: 600; }
.essay-heading { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.essay-heading h2, .essay-heading p { margin-bottom: 10px; }
.essay-score-note { font-size: 13px; color: var(--muted); max-width: 850px; }
.essay-tools { margin: 20px 0 26px; }
.essay-question { padding: 26px; border: 1px solid var(--line); border-radius: 12px; margin-bottom: 22px; }
.essay-question .question-top { align-items: flex-start; }
.essay-question .question-top h2 { font-size: 19px; margin: 0; color: #1d293b; }
.essay-question .question-prompt { font-size: 16px; }
.essay-question figure { margin: 12px 0 20px; }
.essay-question figure img { display: block; width: 440px; max-width: 100%; height: auto; }
.essay-solution { margin-bottom: 0; }
.essay-solution > summary { color: var(--accent); padding: 12px 0 0; border-top: 1px solid var(--line); font-size: 14px; }
.essay-step { border-top: 1px solid var(--line); padding-top: 20px; margin-top: 22px; }
.essay-step:first-of-type { border-top: 0; margin-top: 18px; padding-top: 0; }
.essay-step-heading { display: flex; gap: 16px; align-items: baseline; justify-content: space-between; margin-bottom: 10px; }
.essay-step-heading h3 { font-size: 16px; margin: 0; }
.step-points { color: var(--accent); white-space: nowrap; font-size: 13px; font-weight: 600; font-variant-numeric: tabular-nums; }
.essay-paragraph { font-size: 15px; margin-bottom: 12px; white-space: pre-line; overflow-wrap: anywhere; }
.essay-paragraph:last-child { margin-bottom: 0; }
.orbital-diagram { background: var(--light); border: 1px solid var(--line); border-radius: 8px; padding: 15px 18px; margin: 14px 0; break-inside: avoid; }
.orbital-diagram h4 { font-size: 14px; font-weight: 600; margin: 0 0 5px; }
.electron-configuration { font-size: 16px; margin-bottom: 13px; overflow-wrap: anywhere; }
.orbital-groups { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 12px; margin-bottom: 12px; }
.orbital-group { display: flex; flex-direction: column; gap: 5px; align-items: center; }
.orbital-boxes { display: flex; }
.orbital-box { width: 30px; height: 32px; background: #fff; border: 1px solid #8396b1; margin-left: -1px; font-family: "Segoe UI", Arial, sans-serif; font-size: 20px; line-height: 29px; text-align: center; }
.orbital-box:first-child { margin-left: 0; }
.orbital-label { font-size: 12px; color: var(--muted); }
.orbital-diagram > p:last-child { margin-bottom: 0; }
.essay-table td, .essay-table th { padding: 11px 14px; }
.essay-supplement { background: var(--light); border-radius: 8px; padding: 13px 16px; margin: 20px 0; }
.essay-supplement summary { font-size: 14px; }
.essay-conclusion { border-left: 3px solid var(--accent); background: #f4f7fc; padding: 14px 17px; margin-top: 24px; font-size: 14px; }
.essay-conclusion strong { display: block; color: var(--accent); margin-bottom: 5px; }
.essay-conclusion p { margin: 0; overflow-wrap: anywhere; }

@media (max-width: 900px) {
  .bank-grid { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .bank-card { padding: 22px; }
  .bank-card-top { margin-bottom: 12px; }
  .bank-sub { margin-bottom: 16px; }
  .bank-parts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-bottom: 18px; }
  .bank-parts > div { flex-direction: column; align-items: flex-start; gap: 4px; }
  .bank-parts dt { font-size: 12px; }
  .bank-parts dd { font-size: 17px; }
}
@media (max-width: 800px) {
  .header-inner { padding: 16px 22px; }
  main { padding: 32px 22px 48px; }
  .site-footer { margin: 0 22px; }
  .exam-layout { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .navigator { position: static; padding: 16px; order: -1; }
  .number-grid { grid-template-columns: repeat(auto-fill, minmax(36px, 1fr)); }
  .navigator .legend { display: inline-flex; margin-right: 14px; }
  .navigator h3 { margin-bottom: 12px; }
  .navigator > p { margin-bottom: 3px; }
  .tab-row { overflow-x: auto; }
  .tab-row button { white-space: nowrap; padding: 10px 12px; }
  .exam-heading h1 { font-size: 25px; }
  .exam-meta { gap: 10px; }
  .tf-row { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .tf-choices { justify-content: flex-end; }
  .score-summary { gap: 24px; }
  .resume { align-items: flex-start; flex-direction: column; gap: 14px; }
  .resume-actions { width: 100%; }
  .result-table { min-width: 550px; }
  .history-table { min-width: 610px; }
}
@media (max-width: 540px) {
  .part-select { align-items: flex-start; flex-direction: column; gap: 5px; }
  .part-select select { width: 100%; font-size: 12px; }
  .header-inner { padding: 15px 18px; flex-wrap: wrap; gap: 12px; }
  .brand { font-size: 19px; }
  .brand-icon { width: 25px; height: 25px; }
  nav { width: 100%; gap: 5px; }
  nav a { flex: 1; text-align: center; padding: 8px 12px; }
  main { padding: 28px 18px 40px; }
  .site-footer { margin: 0 18px; flex-direction: column; gap: 4px; }
  .intro { margin-bottom: 28px; }
  h1 { font-size: 30px; letter-spacing: -.6px; }
  h2 { font-size: 20px; }
  .bank-card { padding: 20px; }
  .bank-title { font-size: 24px; }
  .library-note { font-size: 12px; }
  .section-heading { gap: 10px; }
  .section-heading > p { font-size: 12px; }
  .resume { padding: 18px 20px; }
  .exam-heading { align-items: flex-start; gap: 10px; }
  .exam-heading h1 { font-size: 22px; }
  .exam-heading > button { padding: 9px 12px; white-space: nowrap; }
  .exam-heading .eyebrow { font-size: 12px; }
  .exam-meta { font-size: 12px; gap: 0 12px; }
  .question, .review-question { padding: 18px; }
  .question-prompt { font-size: 16px; }
  .option { padding: 11px 12px; font-size: 15px; }
  .question-top { gap: 6px; }
  .tab-row button { font-size: 12px; }
  .short-field input { width: 175px; }
  .score-summary { align-items: flex-start; flex-direction: column; gap: 13px; padding: 23px; }
  .score-big { font-size: 52px; }
  dialog { padding: 25px 21px; }
  dialog h2 { font-size: 22px; }
  .toolbar { gap: 8px; }
  .toolbar input[type=search] { width: 100%; }
  .toolbar .spacer { display: none; }
  td, th { padding: 14px 16px; }
  .review-controls select { width: 100%; }
  .essay-question { padding: 18px; }
  .essay-heading { flex-direction: column; align-items: flex-start; gap: 0; }
  .essay-step-heading { align-items: flex-start; gap: 10px; }
  .orbital-diagram { padding: 13px; }
  .orbital-groups { gap: 10px; }
  .essay-subjects a { flex: 1; text-align: center; padding: 9px 10px; white-space: nowrap; }
  .essay-table { min-width: 410px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; }
}
@media print {
  .site-header, .site-footer, .toolbar, .review-controls, .tab-row, .actions, .toast, dialog, .navigator, .part-actions, .essay-subjects, .result-essay-link { display: none !important; }
  main { max-width: none; padding: 0; }
  .review-question { break-inside: avoid; }
  body { font-size: 12px; }
  .score-big { font-size: 28px; }
  .question-prompt { font-size: 14px !important; }
  a { color: #1d293b; }
  .table-wrap { overflow: visible; }
  .essay-question { border: 0; padding: 0; margin: 0 0 28px; }
  .essay-question .question-top { break-after: avoid; }
  .essay-step-heading { break-after: avoid; }
  .essay-step, .essay-paragraph, .essay-conclusion { font-size: 12px; }
  .essay-solution > summary, .essay-supplement > summary { display: none; }
  .essay-table { min-width: 0; }
}