:root {
  --bg: #0b0d10;
  --panel: #11151a;
  --panel-soft: #151a20;
  --border: #242c35;
  --border-strong: #313b46;
  --text: #edf2f7;
  --muted: #97a4b2;
  --accent: #d7e6f7;
  --accent-bg: #1a2734;
  --accent-bg-hover: #22313f;
  --error: #ea7a7a;
  --ok: #7fd0a2;
  --warn: #e6c26c;
  --focus: #f4d06f;
  --control-min: 44px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(180deg, #0b0d10 0%, #0e1216 100%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.dynamic-labs-shell {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 18px;
  padding: 12px 24px;
  background: rgba(11, 13, 16, 0.96);
  border-bottom: 1px solid var(--border);
}

.dynamic-labs-skip-link {
  position: absolute;
  left: 12px;
  top: 8px;
  z-index: 50;
  padding: 8px 10px;
  border: 1px solid var(--focus);
  background: var(--bg);
  color: var(--text);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-120%);
}

.dynamic-labs-skip-link:focus-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.dynamic-labs-brand {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 10px;
  min-width: 0;
}

.dynamic-labs-logo {
  color: var(--accent);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
}

.dynamic-labs-role {
  padding: 2px 6px;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.dynamic-labs-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  min-width: 0;
  max-width: 100%;
}

.dynamic-labs-nav a,
.dynamic-labs-nav button {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 7px 9px;
  border: 1px solid transparent;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font: inherit;
  text-decoration: none;
  white-space: nowrap;
}

.dynamic-labs-nav-form {
  margin: 0;
}

.dynamic-labs-nav button {
  cursor: pointer;
}

.dynamic-labs-nav a:hover,
.dynamic-labs-nav a:focus-visible,
.dynamic-labs-nav button:hover,
.dynamic-labs-nav button:focus-visible,
.dynamic-labs-nav a[aria-current="page"] {
  border-color: var(--border);
  background: var(--accent-bg);
  color: var(--accent);
}

.dynamic-labs-nav a:focus-visible,
.dynamic-labs-nav button:focus-visible {
  outline: none;
}

main {
  width: min(100%, 1920px);
  margin: 0 auto;
  padding: 24px;
}

main:focus {
  outline: none;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

h1 {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 22px;
}

h2 {
  margin: 24px 0 10px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

h3 {
  margin: 18px 0 8px;
  color: var(--accent);
  font-size: 15px;
}

p {
  margin: 8px 0;
}

a {
  color: var(--accent);
}

a:hover {
  color: var(--text);
}

section,
article,
details {
  margin: 14px 0;
  padding: 16px;
  border: 1px solid var(--border);
  background: var(--panel);
}

summary {
  cursor: pointer;
  color: var(--accent);
  min-height: 32px;
}

ul,
ol {
  padding-left: 22px;
}

li {
  margin: 8px 0;
}

.quiz-question-item {
  padding: 4px 0;
}

.quiz-question-incomplete {
  padding: 12px;
  border: 1px solid rgba(234, 122, 122, 0.65);
  background: rgba(234, 122, 122, 0.08);
}

.quiz-question-incomplete h2,
.quiz-question-error {
  color: var(--error);
}

.quiz-question-error {
  font-size: 13px;
  font-weight: 600;
}

.quiz-answer-options {
  display: grid;
  gap: 8px;
  margin: 10px 0 4px;
}

.quiz-answer-option-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
  min-height: 38px;
  padding: 9px 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  letter-spacing: 0;
  text-transform: none;
}

.quiz-answer-option-row:has(input[type="radio"]:checked),
.quiz-answer-option-row:has(input[type="checkbox"]:checked) {
  border-color: var(--border-strong);
  background: var(--accent-bg);
}

.quiz-answer-option-row:has(input[type="radio"]:focus-visible),
.quiz-answer-option-row:has(input[type="checkbox"]:focus-visible) {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.quiz-answer-option-text {
  min-width: 0;
}

dl {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 8px 14px;
}

.workflow-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin: 12px 0;
  padding: 0;
  list-style-position: inside;
}

.workflow-steps li {
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

.workflow-steps strong {
  color: var(--accent);
}

.workflow-steps p {
  margin: 8px 0 0;
}

.workflow-steps a + a {
  margin-left: 8px;
}

dt {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

dd {
  margin: 0;
  min-width: 0;
}

form {
  display: grid;
  align-items: start;
  gap: 10px;
  max-width: 780px;
  margin: 10px 0;
}

.dynamic-labs-instructor + main form {
  max-width: 1200px;
}

.dynamic-labs-instructor + main form.roster-inline-form {
  max-width: none;
}

fieldset {
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--border);
}

legend {
  padding: 0 6px;
  color: var(--accent);
  font-weight: 700;
}

form.roster-inline-form {
  display: inline-flex;
  max-width: none;
  margin: 0;
}

label {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

label > span,
label small,
fieldset small {
  letter-spacing: 0;
  text-transform: none;
}

input:not([type="radio"]):not([type="checkbox"]),
textarea,
select {
  width: 100%;
  max-width: 100%;
  min-height: var(--control-min);
  padding: 10px;
  border: 1px solid var(--border-strong);
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

textarea {
  min-height: 96px;
  resize: vertical;
}

input[type="radio"],
input[type="checkbox"] {
  inline-size: 1rem;
  block-size: 1rem;
  margin: 0.2rem 0 0;
  accent-color: var(--accent);
  flex: 0 0 auto;
}

button,
input[type="submit"],
input[type="button"] {
  width: fit-content;
  max-width: 100%;
  min-height: var(--control-min);
  padding: 10px 13px;
  border: 1px solid var(--border-strong);
  background: var(--accent-bg);
  color: var(--accent);
  cursor: pointer;
  font: inherit;
}

button:hover,
input[type="submit"]:hover,
input[type="button"]:hover {
  background: var(--accent-bg-hover);
}

.roster-delete-button {
  min-width: var(--control-min);
  min-height: var(--control-min);
  padding: 6px 10px;
}

.roster-bulk-fieldset,
.template-checkbox-fieldset {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--border);
}

.roster-checkbox-row,
.template-checkbox-row,
.retirement-target-options label {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  width: 100%;
  min-height: var(--control-min);
  padding: 8px 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  letter-spacing: 0;
  text-transform: none;
}

.template-checkbox-row {
  border-color: transparent;
  background: transparent;
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

table {
  display: block;
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  -webkit-overflow-scrolling: touch;
}

table:focus,
table:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

thead,
tbody,
tr {
  width: 100%;
}

th,
td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
  max-width: 56ch;
}

th {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.table-column-compact,
.table-action-link {
  white-space: nowrap;
}

.table-column-compact {
  width: 1%;
}

.roster-time-column {
  max-width: 18ch;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

code,
pre {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--accent);
}

code {
  padding: 2px 5px;
  overflow-wrap: anywhere;
}

pre {
  max-width: 100%;
  overflow-x: auto;
  padding: 12px;
}

[role="alert"] {
  padding: 9px 10px;
  border: 1px solid rgba(234, 122, 122, 0.55);
  background: rgba(234, 122, 122, 0.1);
  color: var(--error);
}

[role="status"] {
  color: var(--ok);
}

.retirement-target-menu {
  padding: 0;
  border-color: var(--border-strong);
}

.retirement-target-menu > summary {
  display: flex;
  align-items: center;
  padding: 10px 12px;
}

.retirement-target-menu > div {
  display: grid;
  gap: 10px;
  padding: 12px;
  border-top: 1px solid var(--border);
}

.retirement-target-menu > div > div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.retirement-target-menu button {
  min-height: 36px;
  padding: 8px 10px;
}

.retirement-target-options {
  display: grid;
  gap: 8px;
  max-height: 18rem;
  overflow: auto;
  padding: 2px;
}

.retirement-target-options label {
  align-items: center;
  justify-content: space-between;
}

.retirement-target-options span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.retirement-target-options small {
  color: var(--muted);
  white-space: nowrap;
}

.template-bank-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0;
}

.template-bank-actions button {
  min-height: 36px;
  padding: 8px 10px;
}

.template-source-controls {
  display: grid;
  gap: 0.65rem;
  min-width: 22rem;
}

.template-source-controls label {
  display: grid;
  gap: 0.25rem;
}

.template-source-override-panel {
  display: grid;
  gap: 0.65rem;
}

.template-validation-summary {
  margin: 0 0 12px;
}

.template-validation-summary ul {
  margin: 0;
  padding-left: 1.2rem;
}

.template-row-invalid {
  outline: 2px solid rgba(234, 122, 122, 0.72);
  outline-offset: -2px;
}

.template-row-error {
  color: var(--error);
  margin: 8px 0 0;
}

.template-field-invalid,
[aria-invalid="true"] {
  border-color: var(--error);
  box-shadow: 0 0 0 1px rgba(234, 122, 122, 0.55);
}

.availability-editor {
  display: grid;
  gap: 12px;
  margin: 0;
}

.availability-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.availability-field {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--border);
  background: var(--bg);
}

.availability-field-invalid {
  border-color: rgba(234, 122, 122, 0.72);
  box-shadow: 0 0 0 1px rgba(234, 122, 122, 0.45);
}

.availability-time-row,
.availability-actions {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.availability-actions button {
  width: 100%;
  min-height: 38px;
  padding: 8px 10px;
}

.server-clock {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.server-clock output {
  color: var(--accent);
}

.availability-calendar {
  position: absolute;
  z-index: 30;
  top: calc(100% - 8px);
  left: 12px;
  width: min(22rem, calc(100vw - 32px));
  padding: 10px;
  border: 1px solid var(--border-strong);
  background: var(--panel);
  box-shadow: 0 18px 48px rgb(0 0 0 / 35%);
}

.availability-calendar-header {
  display: grid;
  align-items: center;
  gap: 8px;
  grid-template-columns: auto 1fr auto;
  margin-bottom: 8px;
  text-align: center;
}

.availability-calendar-header button,
.availability-calendar-grid button {
  min-height: 32px;
  padding: 5px 8px;
}

.availability-calendar-grid {
  display: grid;
  gap: 4px;
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.availability-calendar-grid span {
  min-height: 28px;
  padding: 5px 0;
  color: var(--muted);
  font-size: 11px;
  text-align: center;
  text-transform: uppercase;
}

.availability-calendar-grid button {
  width: 100%;
}

.snapshot-option-list {
  display: grid;
  gap: 8px;
  padding-left: 0;
  list-style: none;
}

.snapshot-option {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  min-height: 38px;
  padding: 9px 10px;
  border: 1px solid var(--border);
  background: var(--bg);
}

.snapshot-option-text {
  min-width: 0;
}

.snapshot-option-correct {
  border-color: rgba(127, 208, 162, 0.85);
  background: rgba(127, 208, 162, 0.08);
  box-shadow: 0 0 0 1px rgba(127, 208, 162, 0.35);
}

.snapshot-correct-label {
  margin-left: auto;
  color: var(--ok);
  white-space: nowrap;
}

.quiz-result-options {
  display: grid;
  gap: 8px;
  padding-left: 0;
  list-style: none;
}

.quiz-result-option,
.quiz-result-response {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  min-height: 38px;
  padding: 9px 10px;
  border: 1px solid var(--border);
  background: var(--bg);
}

.quiz-result-option-text {
  min-width: 0;
}

.quiz-result-option-correct,
.quiz-result-response-correct {
  border-color: rgba(127, 208, 162, 0.85);
  background: rgba(127, 208, 162, 0.08);
  box-shadow: 0 0 0 1px rgba(127, 208, 162, 0.35);
}

.quiz-result-option-selected-incorrect,
.quiz-result-response-incorrect {
  border-color: rgba(234, 122, 122, 0.9);
  background: rgba(234, 122, 122, 0.08);
  box-shadow: 0 0 0 1px rgba(234, 122, 122, 0.35);
}

.quiz-result-option-label {
  margin-left: auto;
  white-space: nowrap;
}

.quiz-result-correct-label {
  color: var(--ok);
}

.quiz-result-incorrect-label {
  color: var(--error);
}

.tag-chip-widget {
  display: grid;
  gap: 0.5rem;
}

.tag-chip-widget > label {
  min-width: 0;
}

.tag-chip-widget > button {
  justify-self: start;
  min-height: 34px;
  padding: 7px 10px;
}

.tag-chip-list {
  display: grid;
  gap: 0.45rem;
}

.tag-chip-empty {
  color: var(--muted);
  margin: 0;
}

.tag-chip-row {
  align-items: center;
  display: grid;
  gap: 0.45rem;
  grid-template-columns: minmax(8rem, 1fr) auto minmax(7rem, 9rem);
}

.tag-chip {
  align-items: center;
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  display: inline-flex;
  min-height: 32px;
  min-width: 0;
  overflow-wrap: anywhere;
  padding: 5px 10px;
}

.tag-chip-row > button {
  min-height: 32px;
  min-width: 32px;
  padding: 5px 8px;
}

.tag-chip-row label {
  display: grid;
  gap: 0.2rem;
}

.tag-chip-row input {
  min-width: 0;
}

.criteria-json-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.token-autocomplete-menu {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 18px 48px rgb(0 0 0 / 35%);
  display: grid;
  gap: 0.15rem;
  margin-top: 0.25rem;
  max-height: 14rem;
  overflow: auto;
  padding: 0.3rem;
  position: absolute;
  width: min(24rem, 90vw);
  z-index: 20;
}

.token-autocomplete-menu button {
  background: transparent;
  border: 0;
  border-radius: 6px;
  color: var(--text);
  justify-content: flex-start;
  min-height: 2rem;
  padding: 0.35rem 0.5rem;
  text-align: left;
}

.token-autocomplete-menu button:hover,
.token-autocomplete-menu button:focus {
  background: var(--panel-soft);
}

.quiz-timer {
  max-width: 360px;
}

.quiz-timer-topbar {
  position: sticky;
  top: 64px;
  z-index: 19;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px 18px;
  width: 100%;
  max-width: none;
  margin: 0 0 16px;
  padding: 10px 14px;
  border: 1px solid var(--border-strong);
  background: rgba(17, 21, 26, 0.98);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.22);
}

.quiz-timer-topbar h2,
.quiz-timer-topbar p {
  margin: 0;
}

.quiz-timer-topbar h2 {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

.quiz-timer-topbar p {
  color: var(--muted);
  font-size: 12px;
}

.quiz-timer output {
  display: inline-block;
  min-width: 7ch;
  color: var(--accent);
  font-size: 28px;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.quiz-timer-expired output {
  color: var(--error);
  font-size: 18px;
}

.quiz-save-toast {
  position: fixed;
  top: 72px;
  right: 18px;
  z-index: 40;
  min-width: 108px;
  max-width: min(260px, calc(100vw - 24px));
  padding: 10px 12px;
  border: 1px solid rgba(127, 208, 162, 0.55);
  background: rgba(17, 21, 26, 0.98);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
  color: var(--ok);
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.quiz-save-toast-visible {
  opacity: 1;
  transform: translateY(0);
}

.quiz-save-toast-error {
  border-color: rgba(234, 122, 122, 0.65);
  color: var(--error);
}

button:disabled,
input[type="submit"]:disabled,
input[type="button"]:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 18px 0;
}

@media (max-width: 760px) {
  .dynamic-labs-shell {
    position: static;
    padding: 10px 12px;
  }

  .dynamic-labs-brand,
  .dynamic-labs-nav {
    width: 100%;
  }

  .dynamic-labs-nav {
    align-items: stretch;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .dynamic-labs-nav a,
  .dynamic-labs-nav button {
    flex: 0 0 auto;
    min-height: var(--control-min);
  }

  main {
    padding: 14px 12px 24px;
  }

  section,
  article,
  details {
    padding: 12px;
  }

  dl {
    grid-template-columns: 1fr;
  }

  table {
    border: 1px solid var(--border);
  }

  th,
  td {
    min-width: 10rem;
  }

  button,
  input[type="submit"],
  input[type="button"] {
    width: 100%;
  }

  form.roster-inline-form button,
  .retirement-target-menu button,
  .availability-actions button,
  .availability-calendar button {
    width: auto;
  }

  .retirement-target-menu > div > div {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .retirement-target-options label {
    align-items: flex-start;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
  }

  .retirement-target-options small {
    grid-column: 2;
    white-space: normal;
  }

  .quiz-save-toast {
    top: 12px;
    right: 12px;
  }

  .quiz-timer-topbar {
    top: 0;
    align-items: flex-start;
    display: grid;
    grid-template-columns: 1fr auto;
  }

  .quiz-timer-topbar p {
    grid-column: 1 / -1;
  }

  .availability-time-row,
  .availability-actions {
    grid-template-columns: 1fr;
  }

  .snapshot-option {
    display: grid;
  }

  .snapshot-correct-label {
    margin-left: 0;
  }
}

@media print {
  html {
    color-scheme: light;
  }

  body {
    background: #fff;
    color: #111;
  }

  .dynamic-labs-shell {
    position: static;
    border-bottom: 1px solid #bbb;
    background: #fff;
    color: #111;
  }

  .dynamic-labs-logo,
  h1,
  h3,
  a {
    color: #111;
  }

  .dynamic-labs-nav {
    display: none;
  }

  main {
    width: 100%;
    padding: 12px 0;
  }

  section,
  article,
  details {
    break-inside: avoid;
    border-color: #ccc;
    background: #fff;
  }
}