:root {
  --red: oklch(50% 0.14 45);
  --red-dark: oklch(43% 0.13 45);
  --red-light: oklch(95% 0.025 45);
  --teal: oklch(43% 0.10 195);
  --teal-light: oklch(93% 0.04 195);
  --background: oklch(93% 0.005 250);
  --white: #fff;
  --ink-900: oklch(18% 0.012 258);
  --ink-700: oklch(32% 0.010 258);
  --ink-500: oklch(50% 0.008 258);
  --ink-400: oklch(62% 0.007 258);
  --ink-200: oklch(88% 0.005 258);
  --ink-100: oklch(95% 0.004 55);
  --serif: "Libre Baskerville", Georgia, serif;
  --sans: "Source Sans 3", system-ui, sans-serif;
  --page-pad: clamp(20px, 5vw, 56px);
  --max-width: 980px;
  --section-space: clamp(48px, 6vw, 76px);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 18px;
}

body {
  background: var(--background);
  color: var(--ink-900);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

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

.wrap {
  width: min(var(--max-width), calc(100% - var(--page-pad) * 2));
  margin: 0 auto;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--ink-200);
  background: rgb(255 255 255 / 96%);
  backdrop-filter: blur(8px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1100px, calc(100% - var(--page-pad) * 2));
  min-height: 60px;
  margin: 0 auto;
}

.brand {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 700;
}

.brand-sub {
  margin-top: 3px;
  color: var(--ink-400);
  font-size: 0.6rem;
  letter-spacing: 0.04em;
}

.back-link {
  color: var(--red);
  font-size: 0.82rem;
  font-weight: 600;
}

.back-link::before {
  content: "← ";
}

.back-link:hover {
  color: var(--red-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-header {
  border-top: 4px solid var(--red);
  background: var(--white);
  padding: clamp(44px, 7vw, 76px) var(--page-pad) clamp(34px, 5vw, 54px);
}

.eye {
  margin-bottom: 9px;
  color: var(--red);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  font-family: var(--serif);
  line-height: 1.2;
}

.page-header h1 {
  margin-bottom: 14px;
  font-size: clamp(2rem, 4vw, 3rem);
}

.lead {
  max-width: 740px;
  color: var(--ink-500);
  font-size: clamp(0.98rem, 1.3vw, 1.1rem);
  font-weight: 300;
  line-height: 1.78;
}

.exam-overview {
  border-top: 1px solid var(--ink-200);
  border-bottom: 1px solid var(--ink-200);
  background: var(--white);
  padding: 25px var(--page-pad);
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.overview-item {
  display: flex;
  flex-direction: column;
  border-left: 3px solid var(--red);
  padding-left: 13px;
}

.overview-label {
  color: var(--ink-400);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.overview-item strong {
  margin-top: 2px;
  font-family: var(--serif);
  font-size: 0.96rem;
}

.section {
  padding: var(--section-space) var(--page-pad);
}

.white-section {
  background: var(--white);
}

.muted-section {
  border-top: 1px solid var(--ink-200);
  background: var(--background);
}

.section-heading,
.results-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 30px;
}

.section-heading h2,
.results-heading h2,
.submission h2 {
  font-size: clamp(1.55rem, 3vw, 2.1rem);
}

.section-progress {
  flex: 0 0 auto;
  border: 1px solid var(--ink-200);
  border-radius: 2px;
  padding: 5px 10px;
  color: var(--ink-500);
  font-size: 0.75rem;
  font-weight: 600;
}

.section-intro {
  max-width: 720px;
  margin: -12px 0 30px;
  color: var(--ink-500);
  line-height: 1.72;
}

.question-block + .question-block {
  margin-top: 44px;
}

.question-block > h3 {
  margin-bottom: 15px;
  border-bottom: 1px solid var(--ink-200);
  padding-bottom: 8px;
  font-size: 1.08rem;
}

.mc-question {
  min-width: 0;
  border: 0;
  border-bottom: 1px solid var(--ink-200);
  padding: 23px 0 27px;
}

.mc-question:first-of-type {
  padding-top: 9px;
}

.mc-question legend {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  margin-bottom: 14px;
  color: var(--ink-900);
  font-weight: 600;
  line-height: 1.5;
}

.question-number {
  display: inline-flex;
  flex: 0 0 30px;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 2px;
  background: var(--red);
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 600;
}

.options {
  display: grid;
  gap: 8px;
  margin-left: 42px;
}

.option {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  border: 1px solid var(--ink-200);
  border-radius: 2px;
  padding: 11px 13px;
  color: var(--ink-700);
  cursor: pointer;
  transition: border-color 0.14s, background 0.14s;
}

.option:hover {
  border-color: var(--ink-400);
}

.option:has(input:checked) {
  border-color: var(--red);
  background: var(--red-light);
  color: var(--ink-900);
}

.option input {
  width: 17px;
  height: 17px;
  margin-top: 4px;
  accent-color: var(--red);
}

.mc-question:disabled .option,
textarea:disabled {
  cursor: default;
  opacity: 0.82;
}

.open-question-list,
.open-feedback-list {
  display: grid;
  gap: 22px;
}

.open-question,
.open-feedback {
  border: 1px solid var(--ink-200);
  background: var(--white);
  padding: clamp(20px, 4vw, 30px);
}

.open-question-heading,
.feedback-title {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 19px;
}

.open-question-heading {
  justify-content: flex-start;
}

.question-kicker {
  margin-bottom: 3px;
  color: var(--red);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.open-question h3,
.open-feedback h3 {
  font-size: 1.08rem;
}

.scenario {
  margin-bottom: 19px;
  border-left: 3px solid var(--teal);
  background: var(--teal-light);
  padding: 14px 17px;
}

.scenario span {
  display: block;
  margin-bottom: 4px;
  color: var(--teal);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.scenario p {
  color: var(--ink-700);
  font-size: 0.92rem;
  line-height: 1.68;
}

.part-answer-list {
  display: grid;
  gap: 22px;
}

.part-answer + .part-answer {
  border-top: 1px solid var(--ink-200);
  padding-top: 22px;
}

.part-prompt {
  margin-bottom: 12px;
  color: var(--ink-700);
  font-size: 0.92rem;
  line-height: 1.58;
}

.part-prompt strong {
  color: var(--ink-900);
}

.answer-label {
  display: block;
  margin-bottom: 7px;
  color: var(--ink-900);
  font-size: 0.82rem;
  font-weight: 600;
}

textarea {
  display: block;
  width: 100%;
  resize: vertical;
  border: 1px solid var(--ink-200);
  border-radius: 2px;
  background: var(--white);
  padding: 13px 14px;
  color: var(--ink-900);
  font-size: 0.92rem;
  line-height: 1.58;
  outline: none;
  transition: border-color 0.14s, box-shadow 0.14s;
}

textarea:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px var(--red-light);
}

textarea::placeholder {
  color: var(--ink-400);
}

.character-count {
  margin-top: 6px;
  color: var(--ink-400);
  font-size: 0.72rem;
  text-align: right;
}

.character-count.near-limit {
  color: var(--red);
  font-weight: 600;
}

.submission {
  background: var(--ink-900);
  color: var(--white);
  padding: clamp(38px, 6vw, 58px) var(--page-pad);
}

.submission-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 38px;
}

.submission h2 {
  margin-bottom: 8px;
}

.submission p:not(.eye):not(.form-message) {
  max-width: 590px;
  color: rgb(255 255 255 / 70%);
  font-size: 0.92rem;
  line-height: 1.68;
}

.inline-policy-link {
  color: var(--white);
  text-decoration: underline;
  text-decoration-color: rgb(255 255 255 / 45%);
  text-underline-offset: 3px;
}

.inline-policy-link:hover {
  text-decoration-color: var(--white);
}

.submission-actions {
  display: flex;
  max-width: 360px;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.form-message {
  flex-basis: 100%;
  border-left: 3px solid var(--red);
  background: rgb(255 255 255 / 9%);
  padding: 10px 12px;
  color: var(--white);
  font-size: 0.8rem;
  line-height: 1.5;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1.5px solid transparent;
  border-radius: 2px;
  padding: 10px 19px;
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.14s, border-color 0.14s, color 0.14s;
}

.button:disabled {
  cursor: wait;
  opacity: 0.68;
}

.primary-button {
  border-color: var(--red);
  background: var(--red);
  color: var(--white);
}

.primary-button:hover:not(:disabled) {
  border-color: var(--red-dark);
  background: var(--red-dark);
}

.secondary-button {
  border-color: var(--ink-200);
  background: transparent;
  color: var(--ink-700);
}

.secondary-button:hover {
  border-color: var(--ink-500);
}

.light-button {
  border-color: var(--white);
  background: var(--white);
  color: var(--ink-900);
}

.light-button:hover {
  border-color: var(--red);
  background: var(--red);
  color: var(--white);
}

.ghost-dark-button {
  border-color: rgb(255 255 255 / 35%);
  background: transparent;
  color: var(--white);
}

.ghost-dark-button:hover {
  border-color: var(--white);
}

.results-section {
  border-bottom: 1px solid var(--ink-200);
  background: var(--white);
  outline: none;
}

.grade-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 98px;
  border-left: 3px solid var(--red);
  background: var(--red-light);
  padding: 10px 16px;
}

.grade-badge span {
  color: var(--red);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.grade-badge strong {
  font-family: var(--serif);
  font-size: 1.65rem;
}

.score-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.score-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--ink-200);
  padding: 16px 18px;
}

.score-card span {
  color: var(--ink-500);
  font-size: 0.75rem;
}

.score-card strong {
  margin-top: 2px;
  font-family: var(--serif);
  font-size: 1.14rem;
}

.total-card {
  border-color: var(--teal);
  background: var(--teal-light);
}

.feedback-note {
  margin-bottom: 25px;
  color: var(--ink-500);
  font-size: 0.82rem;
}

.result-details,
.model-answer {
  border: 1px solid var(--ink-200);
}

.result-details {
  margin-bottom: 26px;
}

.result-details > summary,
.model-answer > summary {
  padding: 13px 16px;
  color: var(--ink-700);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
}

.result-details[open] > summary,
.model-answer[open] > summary {
  border-bottom: 1px solid var(--ink-200);
}

.mc-review-list {
  padding: 0 18px;
}

.mc-review {
  border-bottom: 1px solid var(--ink-200);
  padding: 18px 0;
}

.mc-review:last-child {
  border-bottom: 0;
}

.review-title {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 6px;
}

.review-title span {
  border-radius: 2px;
  padding: 2px 7px;
  background: var(--teal-light);
  color: var(--teal);
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.incorrect .review-title span {
  background: var(--red-light);
  color: var(--red);
}

.review-title strong,
.mc-review p {
  font-size: 0.84rem;
}

.answer-line {
  margin-top: 7px;
  color: var(--ink-700);
}

.submitted-answer,
.submitted-open-answers {
  margin-top: 13px;
  border-left: 3px solid var(--teal);
  background: var(--teal-light);
  padding: 11px 14px;
}

.submitted-answer > span {
  display: block;
  margin-bottom: 3px;
  color: var(--teal);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.submitted-answer > p {
  color: var(--ink-900);
  font-size: 0.84rem;
  font-weight: 600;
}

.rationale {
  margin-top: 4px;
  color: var(--ink-500);
}

.feedback-title > strong {
  flex: 0 0 auto;
  color: var(--red);
  font-family: var(--serif);
  font-size: 1.05rem;
}

.criteria-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 20px;
}

.submitted-open-answers {
  margin: 0 0 20px;
}

.submitted-part + .submitted-part {
  margin-top: 13px;
  border-top: 1px solid rgb(0 109 119 / 18%);
  padding-top: 13px;
}

.submitted-part-label {
  margin-bottom: 5px;
  color: var(--ink-700);
  font-size: 0.78rem;
  line-height: 1.5;
}

.submitted-part-text {
  color: var(--ink-900);
  font-size: 0.86rem;
  line-height: 1.65;
  white-space: pre-wrap;
}

.criterion {
  display: flex;
  flex-direction: column;
  border-left: 2px solid var(--teal);
  background: var(--teal-light);
  padding: 9px 11px;
}

.criterion span {
  color: var(--ink-500);
  font-size: 0.7rem;
}

.criterion strong {
  font-size: 0.86rem;
}

.feedback-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  margin-bottom: 20px;
}

.open-feedback h4 {
  margin-bottom: 6px;
  color: var(--ink-900);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.open-feedback ul {
  margin-left: 18px;
  color: var(--ink-700);
  font-size: 0.84rem;
}

.open-feedback li + li {
  margin-top: 5px;
}

.full-credit-note {
  border-left: 3px solid var(--teal);
  background: var(--teal-light);
  padding: 12px 15px;
}

.full-credit-note p {
  color: var(--ink-700);
  font-size: 0.84rem;
  line-height: 1.6;
}

.why-box {
  margin-bottom: 16px;
  border-left: 3px solid var(--red);
  background: var(--red-light);
  padding: 12px 15px;
}

.why-box p,
.model-answer p {
  color: var(--ink-700);
  font-size: 0.86rem;
  line-height: 1.65;
}

.model-answer p {
  padding: 15px 16px;
}

.results-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

footer {
  background: var(--ink-900);
  padding: 22px var(--page-pad);
  color: rgb(255 255 255 / 38%);
  font-size: 0.76rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 20px;
}

footer a:hover {
  color: rgb(255 255 255 / 75%);
}

.legal-page {
  min-height: calc(100vh - 160px);
  padding: var(--section-space) var(--page-pad);
}

.legal-content {
  max-width: 800px;
}

.legal-summary {
  margin-bottom: 34px;
  border-left: 3px solid var(--teal);
  background: var(--teal-light);
  padding: 18px 21px;
  color: var(--ink-700);
}

.legal-section + .legal-section {
  margin-top: 34px;
  border-top: 1px solid var(--ink-200);
  padding-top: 34px;
}

.legal-section h2 {
  margin-bottom: 12px;
  font-size: 1.35rem;
}

.legal-section h3 {
  margin: 22px 0 7px;
  font-size: 1rem;
}

.legal-section p,
.legal-section li {
  color: var(--ink-700);
  line-height: 1.72;
}

.legal-section p + p {
  margin-top: 11px;
}

.legal-section ul {
  margin: 10px 0 0 22px;
}

.legal-section li + li {
  margin-top: 7px;
}

.legal-section a {
  color: var(--red);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.legal-section code {
  font-size: 0.86em;
}

.legal-meta {
  margin-top: 42px;
  color: var(--ink-500);
  font-size: 0.8rem;
}

@media (max-width: 760px) {
  .overview-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .submission-inner {
    grid-template-columns: 1fr;
  }

  .submission-actions {
    max-width: none;
    justify-content: flex-start;
  }

  .criteria-grid,
  .score-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 580px) {
  .brand-sub {
    display: none;
  }

  .back-link {
    font-size: 0.75rem;
  }

  .section-heading,
  .results-heading {
    align-items: flex-start;
  }

  .options {
    margin-left: 0;
  }

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

  .footer-inner {
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 420px) {
  .overview-grid {
    grid-template-columns: 1fr;
  }

  .section-heading {
    flex-direction: column;
    gap: 10px;
  }

  .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}