:root {
  --ink: #182026;
  --muted: #60707b;
  --line: #d8e0e6;
  --paper: #ffffff;
  --surface: #f4f7f8;
  --panel: #eef3f4;
  --accent: #0f6b68;
  --accent-dark: #084b4a;
  --gold: #a66b00;
  --danger: #a83232;
  --success: #1f7a4d;
  --focus: #263f8f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

button,
input,
select {
  font: inherit;
}

button,
select,
input {
  border: 1px solid var(--line);
  border-radius: 8px;
}

button {
  min-height: 40px;
  padding: 0 14px;
  color: var(--ink);
  background: #fff;
  cursor: pointer;
}

button:hover {
  border-color: var(--accent);
}

button:focus-visible,
select:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--focus), transparent 72%);
  outline-offset: 2px;
}

button.primary {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

button.primary:hover {
  background: var(--accent-dark);
}

button.wide {
  width: 100%;
}

.app-header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  padding: 28px 32px;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(8, 55, 60, .92), rgba(22, 80, 74, .78)),
    repeating-linear-gradient(135deg, rgba(255,255,255,.08) 0 2px, transparent 2px 18px);
}

.app-header h1 {
  margin: 4px 0 0;
  font-size: 40px;
  line-height: 1;
  letter-spacing: 0;
}

.eyebrow {
  margin: 0;
  color: #d8ecea;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.header-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.header-stats span {
  min-width: 98px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, .3);
  border-radius: 8px;
  background: rgba(255, 255, 255, .1);
}

.header-stats strong {
  display: block;
  font-size: 22px;
}

.site-nav {
  display: flex;
  gap: 8px;
  padding: 12px 32px 0;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.nav-button {
  border-color: transparent;
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  background: transparent;
}

.nav-button.active {
  color: var(--accent-dark);
  background: var(--surface);
  border-color: var(--line);
  border-bottom-color: var(--surface);
  font-weight: 700;
}

.app-shell {
  width: min(1240px, calc(100% - 44px));
  margin: 0 auto;
  padding: 22px 0 40px;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.generator-intro,
.official-links,
.paper,
.page-header,
.result-list,
.database-filters,
.saved-list {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.generator-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, .9fr);
  gap: 22px;
  align-items: start;
  padding: 24px;
}

.generator-intro h2,
.page-header h2,
.database-filters h2 {
  margin: 0 0 8px;
}

.generator-intro p,
.page-header p {
  margin: 0;
  color: var(--muted);
}

.structure-list {
  display: grid;
  gap: 9px;
}

.structure-list span {
  padding: 10px 12px;
  background: #f8fbfb;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.generator-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.generator-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 100%;
  padding: 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.generator-card h3 {
  margin: 0;
  font-size: 20px;
}

.generator-card p {
  margin: 0;
  color: var(--muted);
}

.generator-card button {
  margin-top: auto;
}

label,
legend {
  display: block;
  margin: 10px 0 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

select,
input[type="search"],
input[type="number"] {
  width: 100%;
  min-height: 40px;
  padding: 8px 10px;
  background: #fff;
}

fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

.check-grid {
  display: grid;
  gap: 7px;
}

.check-grid.compact {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.check-item {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 30px;
}

.check-item input {
  width: 18px;
  height: 18px;
  margin: 0;
}

.check-item label {
  margin: 0;
  color: var(--ink);
  font-weight: 400;
}

.conditional-row {
  display: none;
}

.conditional-row.visible {
  display: block;
}

.official-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  align-items: center;
  margin-top: 16px;
  padding: 16px;
}

.official-links h2 {
  flex-basis: 100%;
  margin: 0;
  font-size: 18px;
}

.official-links a {
  color: var(--accent-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.paper {
  padding: 28px;
}

.paper-title {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 18px;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--ink);
}

.paper-title h2 {
  margin: 0;
  font-size: 28px;
}

.paper-title p {
  margin: 6px 0 0;
  color: var(--muted);
}

.paper-meta {
  color: var(--muted);
  text-align: right;
}

.section-block {
  margin-top: 30px;
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: baseline;
  padding: 11px 12px;
  margin: 0 0 14px;
  color: #fff;
  background: var(--ink);
  border-radius: 8px;
}

.section-heading h3 {
  margin: 0;
  font-size: 18px;
}

.section-instructions {
  margin: 0 0 16px;
  color: var(--muted);
}

.part-heading {
  margin: 18px 0 10px;
  color: var(--accent-dark);
  font-size: 17px;
}

.question-card {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.question-topline {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 8px;
}

.question-id {
  font-weight: 700;
}

.question-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 8px;
  color: var(--muted);
  background: var(--panel);
  border-radius: 8px;
  font-size: 12px;
}

.prompt,
.stimulus,
.sample-answer,
.notes {
  white-space: pre-wrap;
}

.stimulus {
  padding: 12px;
  margin: 12px 0;
  background: #f7f4ed;
  border-left: 4px solid var(--gold);
}

.mcq-block {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.mcq-options {
  display: grid;
  gap: 8px;
}

.mcq-option {
  display: grid;
  grid-template-columns: 18px 28px 1fr;
  gap: 8px;
  align-items: start;
  margin: 0;
  color: var(--ink);
  font-weight: 400;
}

.mcq-option input {
  margin-top: 3px;
}

.option-label {
  font-weight: 700;
}

.check-answer {
  justify-self: start;
}

.answer-feedback {
  min-height: 24px;
  margin: 0;
  font-weight: 700;
}

.answer-feedback.correct {
  color: var(--success);
}

.answer-feedback.incorrect,
.answer-feedback.warning {
  color: var(--danger);
}

.sub-question {
  padding: 12px;
  margin-top: 12px;
  background: #fafafa;
  border: 1px solid var(--line);
  border-radius: 8px;
}

details {
  margin-top: 12px;
}

summary {
  color: var(--accent-dark);
  cursor: pointer;
  font-weight: 700;
}

.criteria-band {
  margin-top: 10px;
  padding: 10px 12px;
  background: #f8fbfb;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.criteria-band h5 {
  margin: 0 0 6px;
  font-size: 14px;
}

.criteria-band ul {
  margin: 0;
  padding-left: 20px;
}

#bank-view {
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 16px;
}

#bank-view.active {
  display: grid;
}

.database-filters {
  align-self: start;
  position: sticky;
  top: 12px;
  padding: 16px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 12px;
  padding: 16px;
}

#result-count {
  margin: 4px 0 0;
  color: var(--muted);
}

.result-list {
  padding: 4px 20px;
}

.saved-list {
  display: grid;
  gap: 10px;
  padding: 12px;
}

.saved-card {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 14px;
  background: #f9fbfb;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.saved-card h3 {
  margin: 0;
  font-size: 17px;
}

.saved-card p {
  margin: 4px 0 0;
  color: var(--muted);
}

.saved-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.empty-state {
  padding: 24px;
  color: var(--muted);
  text-align: center;
}

.empty-state h2 {
  margin: 0 0 6px;
  color: var(--ink);
}

.empty-state p {
  margin: 0;
}

@media (max-width: 980px) {
  .generator-intro,
  .generator-grid,
  #bank-view.active {
    grid-template-columns: 1fr;
  }

  .database-filters {
    position: static;
  }
}

@media (max-width: 720px) {
  .app-header {
    align-items: start;
    flex-direction: column;
    padding: 22px;
  }

  .site-nav {
    flex-wrap: wrap;
    padding: 10px 14px;
  }

  .nav-button {
    border-radius: 8px;
  }

  .app-shell {
    width: calc(100% - 28px);
    padding-top: 14px;
  }

  .paper {
    padding: 18px;
  }

  .paper-title,
  .question-topline,
  .page-header,
  .saved-card {
    flex-direction: column;
    align-items: stretch;
  }

  .paper-meta {
    text-align: left;
  }

  .question-tags {
    justify-content: flex-start;
  }

  .check-grid.compact {
    grid-template-columns: 1fr;
  }
}