:root {
  color: #172033;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f2f6fb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #f2f6fb;
}

a {
  color: inherit;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid rgb(53 102 168 / 35%);
  outline-offset: 3px;
}

.login-body {
  background:
    radial-gradient(circle at top left, rgb(67 119 188 / 18%), transparent 38%),
    #f2f6fb;
}

.login-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.login-card,
.panel {
  border: 1px solid #dce5f0;
  border-radius: 18px;
  background: #ffffff;
  box-shadow: 0 18px 48px rgb(31 55 87 / 10%);
}

.login-card {
  width: min(100%, 420px);
  padding: 40px;
}

.eyebrow {
  margin: 0 0 8px;
  color: #3566a8;
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(2rem, 5vw, 2.75rem);
  letter-spacing: -0.04em;
}

h2 {
  font-size: 1.15rem;
}

.intro,
.page-intro {
  color: #5b687b;
  line-height: 1.55;
}

.intro {
  margin: 12px 0 28px;
}

.form-stack {
  display: grid;
  gap: 12px;
}

label {
  color: #344157;
  font-size: 0.9rem;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid #c9d5e3;
  border-radius: 8px;
  color: #172033;
  background: #ffffff;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: #3566a8;
  outline: 3px solid rgb(53 102 168 / 18%);
}

.primary-button {
  min-height: 46px;
  padding: 11px 18px;
  border: 0;
  border-radius: 8px;
  color: #ffffff;
  background: #285b9c;
  cursor: pointer;
  font-weight: 750;
}

.primary-button:hover {
  background: #204b82;
}

.secondary-button {
  min-height: 38px;
  padding: 8px 13px;
  border: 1px solid #c9d5e3;
  border-radius: 8px;
  color: #285b9c;
  background: #ffffff;
  cursor: pointer;
  font-weight: 750;
}

.secondary-button:hover {
  border-color: #9eb8d8;
  background: #f5f8fb;
}

.align-start {
  justify-self: start;
}

.notice,
.form-note {
  color: #718096;
  font-size: 0.82rem;
  line-height: 1.45;
}

.form-error {
  padding: 11px 12px;
  border: 1px solid #e6b4b4;
  border-radius: 8px;
  color: #8a2525;
  background: #fff1f1;
  font-size: 0.88rem;
}

.form-success {
  margin: 22px 0 0;
  padding: 11px 12px;
  border: 1px solid #a9d8bd;
  border-radius: 8px;
  color: #17653c;
  background: #ecf9f1;
  font-size: 0.88rem;
}

.test-status-message {
  margin-bottom: 24px;
}

.field-error {
  margin: -5px 0 2px;
  color: #a02727;
  font-size: 0.8rem;
}

.field-error[hidden] {
  display: none;
}

.notice a {
  color: #285b9c;
  font-weight: 700;
}

.primary-button:disabled {
  cursor: not-allowed;
  opacity: 0.7;
}

.primary-button.is-loading:disabled {
  cursor: wait;
}
.notice {
  margin: 20px 0 0;
  text-align: center;
}

.form-note {
  margin: 0;
}

.app-shell {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  height: 100vh;
  padding: 30px 22px;
  color: #f7f9fc;
  background: #172b47;
}

.sidebar-eyebrow {
  color: #9ab9df;
}

.brand {
  font-size: 1.35rem;
  font-weight: 800;
  text-decoration: none;
}

.main-nav {
  display: grid;
  gap: 7px;
  margin-top: 46px;
}

.main-nav a,
.sign-out-link {
  border-radius: 8px;
  color: #c9d7e8;
  font-size: 0.94rem;
  font-weight: 650;
  text-decoration: none;
}

.main-nav a {
  padding: 12px 14px;
}

.main-nav a:hover,
.main-nav a.active {
  color: #ffffff;
  background: #29496f;
}

.sign-out-link {
  margin-top: auto;
  padding: 10px 4px;
}

.sign-out-link:hover {
  color: #ffffff;
}

.sign-out-form {
  margin-top: auto;
}

.sign-out-form .sign-out-link {
  border: 0;
  background: transparent;
  cursor: pointer;
}

.page-content {
  width: min(100%, 1400px);
  padding: 48px;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}

.submission-summary-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.export-dialog {
  width: min(92vw, 440px);
  max-height: 90vh;
  overflow: auto;
  padding: 24px;
  border: 1px solid #dce5f0;
  border-radius: 12px;
  box-shadow: 0 18px 48px rgb(31 55 87 / 24%);
}

.export-dialog::backdrop {
  background: rgb(15 23 42 / 55%);
}

.export-dialog h2 {
  margin: 0 0 8px;
}

.export-dialog fieldset {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 12px 0;
  border: 0;
}

.export-dialog fieldset[hidden] {
  display: none;
}

.export-dialog .export-options-unavailable .export-option {
  opacity: 0.45;
  cursor: not-allowed;
}

.export-dialog legend {
  color: #344157;
  font-weight: 750;
}

.export-option {
  display: flex;
  align-items: center;
  gap: 9px;
  cursor: pointer;
}

.export-option input {
  width: auto;
  min-height: auto;
  margin: 0;
  padding: 0;
}

.export-dialog-actions {
  justify-content: flex-end;
  margin-top: 8px;
}

.secondary-button.export-disabled,
.secondary-button.export-disabled:hover {
  display: inline-flex;
  align-items: center;
  color: #7f8a99;
  background: #edf1f5;
  border-color: #dce3eb;
  cursor: not-allowed;
}

.grading-edit-link {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  text-decoration: none;
}

.grading-question-list,
.grading-criteria {
  display: grid;
  gap: 18px;
}

.grading-question-card {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.grading-question-card h2 {
  margin-top: 0;
}

.grading-question-card p {
  margin-bottom: 10px;
}

.grading-issues {
  margin: 12px 0;
  padding-left: 20px;
  color: #8a2525;
}

.grading-editor {
  max-width: 900px;
}

.test-import-dialog {
  width: min(92vw, 700px);
  max-height: 90vh;
  overflow: auto;
  border: 1px solid #dce5f0;
  border-radius: 12px;
}

.test-import-dialog::backdrop {
  background: rgb(15 23 42 / 55%);
}

.test-import-dialog h2 {
  margin-top: 0;
}

.test-import-dialog > .form-note {
  margin-bottom: 18px;
}

.test-code-panel {
  margin-bottom: 32px;
}

.test-code-panel h2 {
  margin-top: 0;
}

.test-code-form {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 12px;
}

.test-code-form > div {
  width: min(100%, 260px);
}

.test-code-message {
  margin: 12px 0 0;
}

.test-code-error {
  color: #8a2525;
}

.test-access-code code {
  font-weight: 700;
  letter-spacing: 0.08em;
  user-select: all;
}

.grading-criterion-row {
  display: grid;
  gap: 12px;
  padding: 18px;
  border: 1px solid #dce5f0;
  border-radius: 12px;
}

.grading-criterion-row[hidden] {
  display: none;
}

.criterion-add-button {
  display: block;
  margin-top: 18px;
}

.grading-criterion-numbers {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 16px;
}

.grading-criterion-numbers input[type="number"] {
  width: 100px;
}

.grading-criterion-numbers input[type="checkbox"] {
  width: auto;
  min-height: auto;
}

.grading-export-error {
  max-width: 800px;
}

.test-creator-questions,
.test-creator-existing {
  margin-top: 32px;
}

.question-drag-handle {
  cursor: grab;
  touch-action: none;
  user-select: none;
}

.question-drag-handle:active {
  cursor: grabbing;
}

.grading-question-card.is-dragging {
  opacity: 0.55;
}

.question-order-number {
  color: #718096;
}

.test-creator-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.delete-test-link {
  color: #8a2525;
  border-color: #e6b4b4;
}


.question-option-row {
  display: grid;
  gap: 10px;
  padding: 16px;
  border: 1px solid #dce5f0;
  border-radius: 12px;
}

.question-option-row[hidden],
[data-free-text-section][hidden],
[data-multiple-choice-section][hidden],
[data-grading-free-text][hidden] {
  display: none;
}

.option-remove-button {
  justify-self: start;
  padding: 2px 0;
  border: 0;
  color: #8a2525;
  background: transparent;
  cursor: pointer;
  font-size: 0.82rem;
}

.option-add-button {
  margin-top: 12px;
}

.page-intro {
  margin: 12px 0 0;
}

.user-summary,
.profile-heading {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-summary {
  padding: 10px 14px;
  border: 1px solid #dce5f0;
  border-radius: 12px;
  background: #ffffff;
}

.user-summary div {
  display: grid;
  gap: 2px;
}

.user-summary span:last-child,
.profile-heading p {
  margin: 0;
  color: #718096;
  font-size: 0.82rem;
}

.avatar {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 50%;
  color: #ffffff;
  background: #3566a8;
  font-size: 0.8rem;
  font-weight: 800;
}

.large-avatar {
  width: 58px;
  height: 58px;
  font-size: 1rem;
}

.section-heading,
.card-topline,
.question-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.section-heading {
  margin-bottom: 18px;
}

.section-heading h2,
.question-heading h2 {
  margin: 0;
}

.section-heading span,
.card-topline,
.question-heading span {
  color: #718096;
  font-size: 0.82rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.test-card {
  min-height: 235px;
  border: 1px solid #dce5f0;
  border-radius: 15px;
  background: #ffffff;
  box-shadow: 0 8px 24px rgb(31 55 87 / 6%);
  overflow: hidden;
  transition: border-color 150ms ease, transform 150ms ease;
}

.test-card-link {
  display: block;
  min-height: 235px;
  padding: 22px;
  transition: border-color 150ms ease, transform 150ms ease;
  text-decoration: none;
}

.test-card:hover {
  border-color: #9eb8d8;
  transform: translateY(-3px);
}

.test-card h3 {
  margin: 42px 0 10px;
  font-size: 1.2rem;
  line-height: 1.35;
}

.test-card-actions {
  padding: 0 22px 22px;
}

.test-card-actions .secondary-button {
  width: 100%;
}

.card-button-link {
  display: grid;
  width: 100%;
  place-items: center;
  text-align: center;
  text-decoration: none;
}

.test-card p {
  color: #718096;
}

.status {
  padding: 4px 8px;
  border-radius: 999px;
  font-weight: 750;
}

.status-active {
  color: #17653c;
  background: #dff5e9;
}

.status-completed {
  color: #59687b;
  background: #edf1f5;
}

.status-submitted {
  color: #4b5563;
  background: #e5e7eb;
}

.status-reopened {
  color: #8a5a13;
  background: #fff3d6;
}

.card-action {
  display: inline-block;
  margin-top: 18px;
  color: #285b9c;
  font-size: 0.9rem;
  font-weight: 750;
}

.test-card-submitted,
.test-card-inactive {
  background: #f3f4f6;
}

.test-card-submitted h3,
.test-card-submitted p,
.test-card-inactive h3,
.test-card-inactive p {
  color: #6b7280;
}

.back-link {
  display: inline-block;
  margin-bottom: 22px;
  color: #3566a8;
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.timer-card {
  min-width: 155px;
  padding: 16px 20px;
  border: 1px solid #dce5f0;
  border-radius: 12px;
  background: #ffffff;
  text-align: right;
}

.timer-card span {
  display: block;
  margin-bottom: 5px;
  color: #718096;
  font-size: 0.8rem;
}

.timer-card strong {
  font-size: 1.35rem;
}

.test-header-actions {
  display: grid;
  justify-items: end;
  gap: 12px;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(230px, 0.75fr);
  gap: 24px;
}

.panel {
  padding: 28px;
}

.narrow-panel {
  max-width: 850px;
}

.question-block {
  padding-bottom: 26px;
  border-bottom: 1px solid #e2e9f1;
}

.question-block p {
  color: #46556a;
  line-height: 1.6;
}

.question-block label {
  display: block;
  margin-bottom: 8px;
}

.choice-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  border: 0;
}

.choice-list legend {
  margin-bottom: 8px;
  color: #344157;
  font-size: 0.9rem;
  font-weight: 700;
}

.choice-option {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 11px 12px;
  border: 1px solid #dce5f0;
  border-radius: 8px;
  background: #f8fafc;
  cursor: pointer;
}

.choice-option input {
  width: auto;
  min-height: auto;
}

.detail-panel {
  align-self: start;
}

.results-publish-bar,
.graded-test-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 22px 0;
}

.graded-test-header h3,
.graded-test-header p {
  margin: 6px 0;
}

.result-total,
.result-points {
  color: #17345b;
  font-weight: 750;
  white-space: nowrap;
}

.result-total-card {
  display: grid;
  gap: 6px;
  padding: 16px 22px;
  border-radius: 12px;
  background: #eaf3ff;
}

.result-total-card strong {
  font-size: 1.5rem;
}

.graded-question h4 {
  margin: 0;
  font-size: 1.1rem;
}

.graded-question h5 {
  margin: 16px 0 8px;
  font-size: 0.9rem;
}

.graded-choice {
  cursor: default;
}

.graded-choice-selected {
  border-color: #9eb8d8;
  background: #eaf3ff;
}

.graded-choice small {
  margin-left: auto;
  color: #3566a8;
}

.result-feedback {
  margin-top: 16px;
  padding: 14px 18px;
  border-left: 3px solid #9eb8d8;
  border-radius: 6px;
  background: #f3f7fc;
}

.result-feedback h5 {
  margin-top: 0;
}

.result-feedback p:last-child {
  margin-bottom: 0;
}

.teacher-comment {
  border-left-color: #76a98b;
  background: #f1f8f4;
}

.result-review-details {
  margin-top: 18px;
}

.result-criterion {
  padding: 12px 0;
  border-top: 1px solid #e2e9f1;
}

.detail-panel dl {
  display: grid;
  gap: 0;
  margin-bottom: 0;
}

.detail-panel dt {
  padding-top: 15px;
  border-top: 1px solid #e2e9f1;
  color: #718096;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.detail-panel dd {
  margin: 4px 0 15px;
  font-weight: 650;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.field-row div {
  display: grid;
  gap: 8px;
}

.question-placeholder {
  padding: 22px;
  border: 1px dashed #b9c9dc;
  border-radius: 10px;
  color: #59687b;
  background: #f8fafc;
}

.question-placeholder p {
  margin: 5px 0 0;
  font-size: 0.9rem;
}

.profile-heading {
  padding-bottom: 24px;
  border-bottom: 1px solid #e2e9f1;
}

.profile-heading h2 {
  margin: 0 0 4px;
}

.account-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  margin: 28px 0;
}

.account-form {
  margin-top: 28px;
}

.read-only-details {
  margin: 14px 0 8px;
  padding: 20px 0;
  border-top: 1px solid #e2e9f1;
  border-bottom: 1px solid #e2e9f1;
}

.account-details div {
  display: grid;
  gap: 6px;
}

.account-details dt {
  color: #718096;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.account-details dd {
  margin: 0;
  font-weight: 650;
}

.empty-state {
  color: #718096;
}

.submission-list {
  display: grid;
  gap: 20px;
}

.submission-card {
  display: block;
}

.submission-meta,
.submission-entry-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.answer-meta {
  color: #718096;
  font-size: 0.84rem;
}

.submission-summary {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  cursor: pointer;
  list-style: none;
}

.submission-summary > span:first-child {
  min-width: 0;
  overflow-wrap: anywhere;
}

.submission-summary::-webkit-details-marker {
  display: none;
}

.submission-summary::before {
  content: "+";
  display: grid;
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  place-items: center;
  border-radius: 50%;
  color: #ffffff;
  background: #285b9c;
  font-weight: 800;
}

.submission-card[open] .submission-summary::before {
  content: "-";
}

.student-submission-summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  cursor: pointer;
  list-style: none;
}

.student-submission-summary::-webkit-details-marker {
  display: none;
}

.student-submission-summary::before {
  content: "+";
  display: grid;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  place-items: center;
  border-radius: 50%;
  color: #285b9c;
  background: #e7eef8;
  font-weight: 800;
}

.submission-entry[open] .student-submission-summary::before {
  content: "-";
}

.student-submission-summary span:first-child {
  display: grid;
  gap: 5px;
}

.student-submission-summary small {
  color: #718096;
  font-size: 0.84rem;
}

.student-submission-detail {
  display: grid;
  gap: 20px;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid #e2e9f1;
}

.submission-summary > span:first-child {
  display: grid;
  gap: 6px;
}

.submission-summary small {
  color: #718096;
  font-size: 0.84rem;
}

.submission-meta {
  margin: 0;
  padding: 16px 0;
  border-top: 1px solid #e2e9f1;
  border-bottom: 1px solid #e2e9f1;
}

.student-submission-detail .submission-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
}

.submission-meta dt {
  color: #718096;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.submission-meta dd {
  margin: 5px 0 0;
  font-weight: 650;
}

.answer-list {
  display: grid;
  gap: 18px;
}

.answer-list section {
  padding: 16px;
  border-radius: 10px;
  background: #f8fafc;
}

.answer-list h3,
.answer-list h4,
.answer-list p:last-child {
  margin-bottom: 0;
}

.inline-form {
  margin: 0;
}

.reopen-duration-field {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  color: #59687b;
  font-size: 0.82rem;
}

.reopen-duration-field input {
  width: 72px;
  min-height: 38px;
}

.test-submission-groups {
  display: grid;
  gap: 18px;
  margin-top: 22px;
}

.submission-entry {
  padding: 18px;
  border: 1px solid #e2e9f1;
  border-radius: 12px;
  background: #ffffff;
}

.submission-reopened {
  background: #fffaf0;
}

.submission-entry-header h3,
.submission-entry-header p {
  margin-bottom: 4px;
}

.submission-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.submission-actions .inline-form {
  display: flex;
  align-items: center;
  gap: 10px;
}

.full-test-review section {
  display: grid;
  gap: 12px;
}

.student-answer-display {
  min-height: 44px;
  padding: 11px 12px;
  border: 1px solid #c9d5e3;
  border-radius: 8px;
  background: #ffffff;
  color: #172033;
  white-space: pre-wrap;
}

@media (max-width: 850px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    display: block;
    height: auto;
    padding: 18px;
  }

  .main-nav {
    display: flex;
    gap: 4px;
    margin-top: 18px;
    overflow-x: auto;
  }

  .main-nav a {
    flex: 0 0 auto;
  }

  .sign-out-form {
    display: inline-block;
    margin-top: 12px;
  }

  .page-content {
    padding: 30px 20px;
  }

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

@media (max-width: 600px) {
  .submission-summary {
    grid-template-columns: 26px minmax(0, 1fr);
  }

  .submission-summary-actions {
    grid-column: 1 / -1;
    justify-self: end;
  }

  .login-card {
    padding: 28px 22px;
  }

  .page-header {
    display: grid;
  }

  .user-summary {
    justify-self: start;
  }

  .field-row,
  .account-details {
    grid-template-columns: 1fr;
  }

  .timer-card {
    justify-self: start;
    text-align: left;
  }
}

@media print {
  :root,
  body {
    background: #ffffff;
    color: #000000;
  }

  .sidebar,
  .back-link,
  .print-action,
  [data-export-open],
  .primary-button,
  .sign-out-form {
    display: none !important;
  }

  .app-shell {
    display: block;
  }

  .page-content {
    width: 100%;
    padding: 0;
  }

  .page-header,
  .content-grid {
    display: block;
  }

  .panel,
  .login-card {
    border: 1px solid #c9d5e3;
    box-shadow: none;
  }

  .detail-panel {
    margin-top: 20px;
  }

  input,
  textarea,
  select {
    border-color: #8a97a8;
    color: #000000;
    background: #ffffff;
  }

  .choice-option {
    break-inside: avoid;
  }

  .question-block,
  .answer-list section {
    break-inside: avoid;
  }

}