:root {
  --note-quiz-primary: #5b3cc4;
  --note-quiz-primary-deep: #3f268e;
  --note-quiz-soft: #f0edff;
  --note-quiz-ink: #251c3b;
}

html {
  min-height: 100%;
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

body {
  min-height: 100vh;
  color: var(--note-quiz-ink);
  background:
    radial-gradient(circle at top right, rgb(91 60 196 / 10%), transparent 34rem),
    #faf9ff;
}

.container {
  max-width: 1080px;
}

a {
  text-underline-offset: 2px;
}

.navbar-brand {
  color: var(--note-quiz-ink);
}

.brand-mark {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border-radius: 0.8rem;
  color: white;
  background: var(--note-quiz-primary);
  font-size: 0.9rem;
  font-weight: 800;
}

.btn-primary {
  border-color: var(--note-quiz-primary);
  background: var(--note-quiz-primary);
}

.btn-primary:hover,
.btn-primary:focus {
  border-color: var(--note-quiz-primary-deep);
  background: var(--note-quiz-primary-deep);
}

.btn-outline-primary {
  color: var(--note-quiz-primary);
  border-color: var(--note-quiz-primary);
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  border-color: var(--note-quiz-primary);
  background: var(--note-quiz-primary);
}

.btn-link,
.eyebrow {
  color: var(--note-quiz-primary);
}

.eyebrow {
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(18rem, 0.75fr);
  gap: clamp(2rem, 7vw, 6rem);
  align-items: center;
  min-height: calc(100vh - 7rem);
  padding-block: 4rem;
}

.hero h1 {
  max-width: 14ch;
  margin-bottom: 1.25rem;
  font-size: clamp(2.6rem, 7vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.hero-copy {
  max-width: 39rem;
  margin-bottom: 1.75rem;
  color: var(--bs-secondary-color);
  font-size: 1.12rem;
}

.feature-card,
.access-card {
  border: 1px solid rgb(91 60 196 / 18%);
  border-radius: 1.25rem;
  background: rgb(255 255 255 / 88%);
  box-shadow: 0 1.5rem 4rem rgb(63 38 142 / 12%);
}

.feature-card {
  padding: 1.5rem;
}

.workflow-list {
  display: grid;
  gap: 1.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.workflow-list li {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
}

.workflow-list > li > span {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 50%;
  color: var(--note-quiz-primary-deep);
  background: var(--note-quiz-soft);
  font-weight: 800;
}

.workflow-list strong,
.workflow-list small {
  display: block;
}

.workflow-list small {
  margin-top: 0.15rem;
  color: var(--bs-secondary-color);
  line-height: 1.4;
}

.access-gate {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 2rem 0;
}

.access-card {
  width: min(100%, 26rem);
  padding: 2rem;
}

.app-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding-block: 1rem;
}

.build-version,
.build-version a,
.build-version code {
  color: var(--bs-secondary-color);
  font-size: 0.75rem;
}

.build-version a {
  text-decoration: none;
}

.build-version a:hover {
  text-decoration: underline;
}

.app-footer form {
  margin: 0;
}

.page-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 3.5rem 2rem;
}

.page-heading h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.compact-heading {
  padding-bottom: 1.5rem;
}

.breadcrumb-nav {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  padding-top: 1.5rem;
  color: var(--bs-secondary-color);
  font-size: 0.9rem;
}

.category-pill,
.status-badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.category-pill {
  padding: 0.35rem 0.65rem;
  color: var(--note-quiz-primary-deep);
  background: var(--note-quiz-soft);
}

.study-set-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  gap: 1rem;
  padding-bottom: 4rem;
}

.study-set-card {
  display: grid;
  gap: 1.1rem;
  padding: 1.25rem;
  border: 1px solid rgb(91 60 196 / 15%);
  border-radius: 1rem;
  color: inherit;
  background: #fff;
  box-shadow: 0 0.5rem 1.8rem rgb(63 38 142 / 5%);
  text-decoration: none;
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.study-set-card:hover {
  color: inherit;
  box-shadow: 0 1rem 2.5rem rgb(63 38 142 / 12%);
  transform: translateY(-2px);
}

.study-set-card time {
  color: var(--bs-secondary-color);
  font-size: 0.82rem;
}

.study-set-card h2 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 750;
}

.set-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.8rem;
  color: var(--bs-secondary-color);
  font-size: 0.82rem;
}

.empty-state {
  padding: 4rem 1rem;
  border: 1px dashed rgb(91 60 196 / 32%);
  border-radius: 1.25rem;
  background: rgb(255 255 255 / 70%);
  text-align: center;
}

.empty-state p {
  max-width: 34rem;
  margin-right: auto;
  margin-left: auto;
  color: var(--bs-secondary-color);
}

.empty-icon {
  display: grid;
  width: 3.5rem;
  height: 3.5rem;
  margin: 0 auto 1rem;
  place-items: center;
  border-radius: 1rem;
  color: #fff;
  background: var(--note-quiz-primary);
  font-weight: 800;
}

.compact-empty-state {
  padding: 2rem 1rem;
}

.form-card,
.danger-zone {
  padding: clamp(1.25rem, 4vw, 2rem);
  border: 1px solid rgb(91 60 196 / 14%);
  border-radius: 1.25rem;
  background: #fff;
  box-shadow: 0 0.75rem 2rem rgb(63 38 142 / 6%);
}

.quiz-history-list {
  display: grid;
  gap: 0.65rem;
}

.quiz-history-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--bs-border-color);
  border-radius: 0.75rem;
  color: inherit;
  background: #fff;
  text-decoration: none;
}

.quiz-history-list a:hover {
  border-color: rgb(91 60 196 / 55%);
}

.quiz-history-list span {
  color: var(--bs-secondary-color);
  font-size: 0.82rem;
  text-align: right;
}

.drop-zone {
  display: grid;
  min-height: 15rem;
  place-items: center;
  align-content: center;
  gap: 0.45rem;
  margin-top: 1.5rem;
  padding: 1.5rem;
  border: 2px dashed rgb(91 60 196 / 38%);
  border-radius: 1rem;
  background: var(--note-quiz-soft);
  cursor: pointer;
  text-align: center;
  transition: border-color 150ms ease, background 150ms ease;
}

.drop-zone:hover,
.drop-zone:focus,
.drop-zone.is-dragging {
  border-color: var(--note-quiz-primary);
  outline: none;
  background: #e6e0ff;
}

.drop-zone.has-files {
  border-style: solid;
}

.drop-zone input[type="file"] {
  max-width: 30rem;
  margin-top: 0.5rem;
}

.drop-zone-icon {
  color: var(--note-quiz-primary);
  font-size: 2rem;
  font-weight: 800;
}

.compact-drop-zone {
  min-height: 9rem;
  margin-top: 1rem;
}

.selected-file-list {
  max-height: 12rem;
  margin: 1rem 0 0;
  padding-left: 1.5rem;
  overflow-y: auto;
  color: var(--bs-secondary-color);
  font-size: 0.82rem;
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.status-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.status-summary span {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--bs-border-color);
  border-radius: 0.65rem;
  background: #fff;
}

.note-image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr));
  gap: 1rem;
}

.note-image-card {
  overflow: hidden;
  border: 1px solid var(--bs-border-color);
  border-radius: 1rem;
  color: inherit;
  background: #fff;
  text-decoration: none;
}

.note-image-card:hover {
  color: inherit;
  border-color: rgb(91 60 196 / 55%);
  box-shadow: 0 0.75rem 2rem rgb(63 38 142 / 10%);
}

.note-thumbnail {
  position: relative;
  height: 15rem;
  overflow: hidden;
  background: #eeecf2;
}

.note-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.page-number,
.question-number {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--note-quiz-primary);
  font-weight: 800;
}

.page-number {
  position: absolute;
  top: 0.65rem;
  left: 0.65rem;
  box-shadow: 0 0.2rem 0.8rem rgb(0 0 0 / 20%);
}

.note-image-meta {
  display: grid;
  gap: 0.65rem;
  padding: 0.9rem;
}

.note-image-meta > strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.note-image-meta > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.status-badge {
  padding: 0.3rem 0.55rem;
  color: #3d4852;
  background: #e9ecef;
}

.status-ready {
  color: #146c43;
  background: #d1e7dd;
}

.status-needs_review {
  color: #775a00;
  background: #fff3cd;
}

.status-processing {
  color: #055160;
  background: #cff4fc;
}

.status-failed {
  color: #842029;
  background: #f8d7da;
}

.danger-zone {
  border-color: rgb(220 53 69 / 22%);
  box-shadow: none;
}

.danger-zone p {
  color: var(--bs-secondary-color);
}

.note-review-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(22rem, 0.85fr);
  gap: 1.5rem;
  align-items: start;
}

.source-image-panel,
.transcription-panel {
  overflow: hidden;
  border: 1px solid var(--bs-border-color);
  border-radius: 1rem;
  background: #fff;
}

.source-image-panel {
  position: sticky;
  top: 1rem;
  display: grid;
  max-height: calc(100vh - 2rem);
  overflow: auto;
  place-items: start center;
  background: #e8e6ec;
}

.source-image-panel img {
  width: 100%;
  height: auto;
}

.transcription-panel {
  padding: 1.25rem;
}

.quiz-settings-form .form-check {
  padding: 0.6rem 0.75rem 0.6rem 2.25rem;
  border-bottom: 1px solid var(--bs-border-color);
}

.quiz-question-list {
  display: grid;
  gap: 1.25rem;
}

.quiz-question {
  padding: clamp(1.2rem, 4vw, 2rem);
  border: 1px solid rgb(91 60 196 / 16%);
  border-radius: 1.25rem;
  background: #fff;
  box-shadow: 0 0.75rem 2rem rgb(63 38 142 / 6%);
  break-inside: avoid;
}

.quiz-question > header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.quiz-question h2 {
  margin-bottom: 1.25rem;
  font-size: 1.25rem;
  line-height: 1.45;
}

.choice-list {
  display: grid;
  gap: 0.65rem;
  padding-left: 2rem;
}

.choice-list li {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--bs-border-color);
  border-radius: 0.6rem;
}

.answer-line {
  width: min(100%, 32rem);
  height: 2rem;
  border-bottom: 2px solid #9ba2a8;
}

.written-lines {
  height: 8rem;
  background: repeating-linear-gradient(
    transparent 0,
    transparent 1.8rem,
    #d8dbe0 1.85rem,
    transparent 1.9rem
  );
}

.answer-key {
  margin-top: 1.5rem;
  border-radius: 0.7rem;
  background: #f5f3fc;
}

.answer-key summary {
  padding: 0.75rem 1rem;
  color: var(--note-quiz-primary-deep);
  cursor: pointer;
  font-weight: 700;
}

.answer-key > div {
  padding: 0 1rem 1rem;
}

.source-link {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  margin-top: 1rem;
  font-size: 0.86rem;
  font-weight: 700;
  text-decoration: none;
}

.source-link span {
  color: var(--bs-secondary-color);
  font-size: 0.78rem;
  font-weight: 400;
}

@media print {
  .navbar,
  .breadcrumb-nav,
  .quiz-heading .btn,
  .app-footer,
  .source-link,
  .quiz-question-list + div {
    display: none !important;
  }

  body {
    background: #fff;
  }

  .quiz-question {
    border-color: #aaa;
    box-shadow: none;
  }

  .answer-key:not([open]) {
    display: none;
  }
}

@media (max-width: 767.98px) {
  .container {
    padding-right: 1rem;
    padding-left: 1rem;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-block: 3rem;
  }

  .hero h1 {
    font-size: clamp(2.6rem, 14vw, 4rem);
  }

  .page-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 1rem;
    padding-block: 2.5rem 1.5rem;
  }

  .set-heading {
    align-items: flex-start;
  }

  .note-review-layout {
    grid-template-columns: 1fr;
  }

  .source-image-panel {
    position: static;
    max-height: 70vh;
  }

  .quiz-history-list a {
    align-items: flex-start;
    flex-direction: column;
  }

  .quiz-history-list span {
    text-align: left;
  }
}