:root {
  color-scheme: light dark;
  --paper: #f5f2ec;
  --paper-raised: #fbf9f5;
  --paper-muted: #ece7de;
  --ink: #1a1612;
  --ink-soft: #625c55;
  --hairline: #d8d0c5;
  --control-border: #90867b;
  --accent: #9c5d34;
  --accent-soft: #f1dfd0;
  --good: #39705a;
  --good-soft: #dce9e1;
  --wrong: #b04b4a;
  --wrong-soft: #f2dedd;
  --tone-label: #fff;
  --shadow: 0 18px 55px rgb(45 36 27 / 10%);
  --sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: Iowan Old Style, Baskerville, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  min-height: 100%;
  background: var(--paper);
  -webkit-text-size-adjust: 100%;
}

body {
  min-width: 320px;
  min-height: 100dvh;
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.45;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

button {
  color: inherit;
  font: inherit;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.site-shell {
  position: relative;
  min-height: 100dvh;
  overflow: clip;
}

.site-shell::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  border-left: 1px solid color-mix(in srgb, var(--hairline) 62%, transparent);
  border-right: 1px solid color-mix(in srgb, var(--hairline) 62%, transparent);
  content: "";
  pointer-events: none;
  margin-inline: max(15px, calc((100vw - 720px) / 2));
}

.site-header {
  position: relative;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: min(100%, 720px);
  min-height: 68px;
  margin-inline: auto;
  padding: calc(10px + env(safe-area-inset-top)) 22px 10px;
  border-bottom: 1px solid var(--hairline);
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(18px);
}

.wordmark {
  display: inline-flex;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  color: var(--ink);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .18em;
  text-decoration: none;
}

.edition-mark {
  color: var(--ink-soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
}

.connection-dot {
  justify-self: end;
  width: 9px;
  height: 9px;
  border: 1px solid var(--paper);
  border-radius: 999px;
  background: var(--good);
  box-shadow: 0 0 0 1px var(--hairline);
}

.connection-dot.offline {
  background: var(--wrong);
}

.app {
  width: min(100%, 720px);
  min-height: calc(100dvh - 68px);
  margin-inline: auto;
}

.source-footer {
  width: min(100%, 720px);
  margin-inline: auto;
  padding: 20px 22px calc(24px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--hairline);
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.55;
}

.source-footer p {
  max-width: 600px;
  margin: 0;
}

.source-footer a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, currentColor 45%, transparent);
  text-underline-offset: 3px;
}

.screen {
  display: flex;
  min-height: calc(100dvh - 68px);
  flex-direction: column;
  padding: 34px 22px calc(32px + env(safe-area-inset-bottom));
}

.screen.centered {
  justify-content: center;
}

.eyebrow {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.landing {
  justify-content: space-between;
  gap: 40px;
}

.landing-copy {
  padding-top: clamp(18px, 8vh, 88px);
}

.challenge-score {
  display: flex;
  align-items: baseline;
  margin: 18px 0 14px;
  font-family: var(--serif);
  font-size: clamp(74px, 24vw, 144px);
  font-weight: 600;
  letter-spacing: -.07em;
  line-height: .86;
}

.challenge-score small {
  margin-left: 13px;
  color: var(--ink-soft);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .12em;
}

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

.landing h1,
.level-gate h1,
.error-state h1 {
  max-width: 600px;
  margin-bottom: 14px;
  font-family: var(--serif);
  font-size: clamp(38px, 10vw, 62px);
  font-weight: 500;
  letter-spacing: -.045em;
  line-height: .98;
}

.lede {
  max-width: 520px;
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: clamp(16px, 4.7vw, 19px);
}

.level-note {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--hairline);
  color: var(--ink-soft);
  font-size: 14px;
}

.level-note strong {
  color: var(--ink);
}

.seven-mark {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  width: 100%;
  margin: 28px 0 20px;
}

.seven-mark span,
.progress-track span {
  height: 5px;
  border-radius: 999px;
  background: var(--hairline);
}

.seven-mark span:first-child,
.progress-track span.done,
.progress-track span.current {
  background: var(--accent);
}

.primary-button,
.secondary-button,
.text-button {
  min-height: 54px;
  border: 0;
  border-radius: 16px;
  cursor: pointer;
  font-weight: 750;
}

.primary-button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  padding: 15px 20px;
  background: var(--ink);
  color: var(--paper);
  box-shadow: var(--shadow);
  text-decoration: none;
}

.primary-button:disabled {
  cursor: not-allowed;
  opacity: .55;
}

.secondary-button {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--control-border);
  background: var(--paper-raised);
  color: var(--ink);
}

.store-link {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.text-button {
  min-height: 44px;
  padding: 8px 4px;
  background: transparent;
  color: var(--ink-soft);
}

.microcopy {
  margin: 12px 0 0;
  color: var(--ink-soft);
  font-size: 12px;
  text-align: center;
}

.progress-header {
  position: sticky;
  top: 0;
  z-index: 4;
  padding: 18px 22px 12px;
  background: color-mix(in srgb, var(--paper) 94%, transparent);
  backdrop-filter: blur(15px);
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 11px;
  color: var(--ink-soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.progress-track {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 5px;
}

.question-screen {
  min-height: calc(100dvh - 68px);
  padding-bottom: calc(24px + env(safe-area-inset-bottom));
}

.question-body {
  display: flex;
  min-height: calc(100dvh - 145px);
  flex-direction: column;
  padding: 28px 22px 22px;
}

.question-kind {
  margin-bottom: 13px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.question-prompt {
  margin-bottom: 30px;
  font-family: var(--serif);
  font-size: clamp(31px, 8vw, 46px);
  font-weight: 500;
  letter-spacing: -.035em;
  line-height: 1.08;
}

.choices {
  display: grid;
  gap: 10px;
}

.choice {
  display: grid;
  grid-template-columns: 32px 1fr 24px;
  gap: 11px;
  align-items: center;
  width: 100%;
  min-height: 68px;
  padding: 13px 15px;
  border: 1px solid var(--control-border);
  border-radius: 17px;
  background: var(--paper-raised);
  cursor: pointer;
  text-align: left;
  transition: border-color 140ms ease, background-color 140ms ease, transform 140ms ease;
}

.choice:not(:disabled):active {
  transform: scale(.988);
}

.choice-letter {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  color: var(--ink-soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  font-weight: 750;
  text-transform: uppercase;
}

.choice-text {
  font-size: 16px;
  font-weight: 620;
  line-height: 1.32;
}

.choice-icon {
  color: transparent;
  font-size: 18px;
  font-weight: 900;
  text-align: center;
}

.choice[data-state="correct"] {
  border-color: var(--good);
  background: var(--good-soft);
}

.choice[data-state="correct"] .choice-letter {
  border-color: var(--good);
  background: var(--good);
  color: var(--tone-label);
}

.choice[data-state="correct"] .choice-icon {
  color: var(--good);
}

.choice[data-state="wrong"] {
  border-color: var(--wrong);
  background: var(--wrong-soft);
}

.choice[data-state="wrong"] .choice-letter {
  border-color: var(--wrong);
  background: var(--wrong);
  color: var(--tone-label);
}

.choice[data-state="wrong"] .choice-icon {
  color: var(--wrong);
}

.choice[data-state="muted"] {
  opacity: .62;
}

.reveal {
  margin-top: 19px;
  padding: 18px;
  border-left: 3px solid var(--accent);
  background: var(--paper-muted);
}

.reveal strong {
  display: block;
  margin-bottom: 5px;
  font-size: 14px;
}

.reveal p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.question-action {
  margin-top: auto;
  padding-top: 24px;
}

.result-screen {
  gap: 34px;
  padding-top: 45px;
}

.result-hero {
  text-align: center;
}

.result-score {
  margin: 13px 0 4px;
  font-family: var(--serif);
  font-size: clamp(100px, 30vw, 178px);
  font-weight: 500;
  letter-spacing: -.08em;
  line-height: .92;
}

.result-badges {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 17px 0;
}

.badge {
  padding: 6px 10px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--paper-raised);
  color: var(--ink-soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.result-message {
  max-width: 560px;
  margin: 0 auto;
  font-family: var(--serif);
  font-size: clamp(25px, 7vw, 37px);
  font-weight: 500;
  letter-spacing: -.025em;
  line-height: 1.12;
}

.sync-state {
  margin: 18px auto 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.sync-state.error {
  color: var(--wrong);
}

.comparison-card,
.own-level-card,
.store-card {
  padding: 20px;
  border: 1px solid var(--hairline);
  background: var(--paper-raised);
}

.comparison-card {
  border-left: 4px solid var(--accent);
}

.comparison-card h2,
.own-level-card h2,
.store-card h2,
.review h2 {
  margin-bottom: 8px;
  font-family: var(--serif);
  font-size: 27px;
  font-weight: 550;
  letter-spacing: -.025em;
}

.comparison-card p,
.own-level-card p,
.store-card p {
  margin-bottom: 17px;
  color: var(--ink-soft);
}

.result-actions {
  display: grid;
  gap: 10px;
}

.review {
  padding-top: 8px;
}

.review-list {
  display: grid;
  gap: 11px;
}

.review-card {
  padding: 17px;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  background: var(--paper-raised);
}

.review-topline {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 9px;
}

.review-status {
  color: var(--good);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.review-status.wrong {
  color: var(--wrong);
}

.report-button {
  min-height: 44px;
  padding: 8px 2px;
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 12px;
}

.review-prompt {
  margin-bottom: 12px;
  font-weight: 720;
}

.review-answer {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 9px;
  margin: 7px 0;
  font-size: 14px;
}

.review-answer dt {
  color: var(--ink-soft);
  font-weight: 700;
}

.review-answer dd {
  margin: 0;
}

.review-explanation {
  margin: 12px 0 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.level-list {
  display: grid;
  gap: 9px;
  margin-top: 28px;
}

.level-option {
  display: grid;
  grid-template-columns: 48px 1fr 22px;
  gap: 13px;
  align-items: center;
  width: 100%;
  min-height: 76px;
  padding: 13px 15px;
  border: 1px solid var(--control-border);
  border-radius: 16px;
  background: var(--paper-raised);
  cursor: pointer;
  text-align: left;
}

.level-code {
  display: grid;
  gap: 7px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  font-weight: 850;
}

.level-code i {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2px;
  width: 42px;
}

.level-code b {
  width: 6px;
  height: 15px;
  border-radius: 99px;
  background: var(--hairline);
}

.level-code b.filled {
  background: var(--accent);
}

.level-copy strong,
.level-copy small {
  display: block;
}

.level-copy small {
  margin-top: 2px;
  color: var(--ink-soft);
  font-size: 12px;
}

.loading-state,
.error-state {
  display: flex;
  min-height: calc(100dvh - 68px);
  flex-direction: column;
  justify-content: center;
  padding: 32px 22px calc(32px + env(safe-area-inset-bottom));
}

.loading-state h1 {
  max-width: 520px;
  margin: 15px 0 25px;
  font-family: var(--serif);
  font-size: clamp(36px, 10vw, 58px);
  font-weight: 500;
  letter-spacing: -.04em;
  line-height: 1;
}

.loading-rule {
  width: 90px;
  height: 3px;
  overflow: hidden;
  background: var(--hairline);
}

.loading-rule::after {
  display: block;
  width: 45%;
  height: 100%;
  background: var(--accent);
  content: "";
  animation: loading 1s ease-in-out infinite alternate;
}

.error-state p {
  max-width: 500px;
  color: var(--ink-soft);
}

.error-state .primary-button {
  max-width: 320px;
  margin-top: 18px;
}

.report-dialog {
  width: min(calc(100% - 32px), 480px);
  padding: 24px;
  border: 1px solid var(--hairline);
  border-radius: 22px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--shadow);
}

.report-dialog::backdrop {
  background: rgb(20 17 13 / 56%);
  backdrop-filter: blur(4px);
}

.report-dialog h2 {
  margin: 10px 38px 20px 0;
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 550;
}

.dialog-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 999px;
  background: var(--paper-muted);
  cursor: pointer;
  font-size: 25px;
}

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

.report-options button {
  min-height: 50px;
  padding: 11px 13px;
  border: 1px solid var(--control-border);
  border-radius: 12px;
  background: var(--paper-raised);
  cursor: pointer;
  text-align: left;
}

.toast {
  position: fixed;
  right: 16px;
  bottom: calc(16px + env(safe-area-inset-bottom));
  left: 16px;
  z-index: 50;
  width: fit-content;
  max-width: calc(100% - 32px);
  margin-inline: auto;
  padding: 11px 16px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  box-shadow: var(--shadow);
  font-size: 13px;
  font-weight: 700;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.noscript {
  position: fixed;
  inset: auto 16px 16px;
  z-index: 100;
  padding: 16px;
  background: var(--wrong-soft);
  color: var(--ink);
}

@keyframes loading {
  from { transform: translateX(0); }
  to { transform: translateX(120%); }
}

@media (min-width: 620px) {
  .screen {
    padding-inline: 52px;
  }

  .question-body {
    padding-inline: 52px;
  }

  .progress-header {
    padding-inline: 52px;
  }

  .result-actions {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 350px) {
  .site-header,
  .screen,
  .question-body,
  .progress-header {
    padding-right: 16px;
    padding-left: 16px;
  }

  .choice {
    grid-template-columns: 29px 1fr 20px;
    padding-inline: 12px;
  }

  .question-prompt {
    font-size: 29px;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #14110d;
    --paper-raised: #1d1915;
    --paper-muted: #27211b;
    --ink: #f5f2ec;
    --ink-soft: #aaa39a;
    --hairline: #39332c;
    --control-border: #6f665c;
    --accent: #d89561;
    --accent-soft: #38291f;
    --good: #76ad91;
    --good-soft: #1c3027;
    --wrong: #df7774;
    --wrong-soft: #3a2322;
    --tone-label: #14110d;
    --shadow: 0 18px 55px rgb(0 0 0 / 28%);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}