:root {
  color-scheme: dark;
  --ink: #0b1012;
  --panel: #121a1d;
  --panel-strong: #182327;
  --panel-soft: rgba(247, 247, 241, 0.06);
  --paper: #f7f7f1;
  --muted: #a9b8b8;
  --line: rgba(247, 247, 241, 0.16);
  --cyan: #64e3d1;
  --gold: #ffd166;
  --red: #ff7a7a;
  --green: #9dff8f;
  --blue: #9bbcff;
  --radius: 8px;
  --shadow: 0 24px 88px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    linear-gradient(rgba(247, 247, 241, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(247, 247, 241, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 82% 6%, rgba(100, 227, 209, 0.18), transparent 34rem),
    radial-gradient(circle at 8% 34%, rgba(255, 209, 102, 0.12), transparent 28rem),
    linear-gradient(135deg, #091012 0%, #10191d 52%, #151312 100%);
  background-size:
    32px 32px,
    32px 32px,
    auto,
    auto,
    auto;
  color: var(--paper);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

button,
input {
  border: 1px solid var(--line);
  border-radius: 7px;
  font: inherit;
}

button {
  color: var(--paper);
  background: rgba(247, 247, 241, 0.07);
  cursor: pointer;
}

button:disabled {
  cursor: default;
  opacity: 0.72;
}

button:hover,
button:focus-visible,
a:hover,
a:focus-visible,
input:focus-visible {
  outline: 2px solid rgba(100, 227, 209, 0.48);
  outline-offset: 2px;
}

.quiz-shell {
  width: min(1620px, 100%);
  margin: 0 auto;
  padding: 18px clamp(14px, 2.6vw, 44px) 60px;
}

.quiz-topbar,
.source-panel,
.control-strip,
.progress-panel,
.question-meta,
.score-row {
  display: flex;
  align-items: center;
}

.quiz-topbar {
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 18px;
}

.quiz-topbar.site-topbar--customer[data-site-header] .site-topbar__nav {
  display: grid !important;
  width: min(880px, 100%);
  flex: 1 1 auto;
  justify-items: end;
  gap: 8px;
  overflow: visible;
}

.quiz-topbar.site-topbar--customer[data-site-header] .site-secondary-links {
  display: flex !important;
  max-width: 100%;
  flex-wrap: wrap;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.quiz-topbar.site-topbar--customer[data-site-header] .site-secondary-links::-webkit-scrollbar {
  display: none;
}

.quiz-topbar.site-topbar--customer[data-site-header] .site-secondary-links a {
  min-height: 34px !important;
  border-color: rgba(247, 247, 241, 0.18) !important;
  padding: 5px 9px !important;
  color: var(--paper) !important;
  background: rgba(11, 16, 18, 0.58) !important;
}

.brand-link {
  font-weight: 950;
}

.quiz-topbar nav,
.source-panel {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.quiz-topbar nav a,
.source-panel a {
  min-width: 82px;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 9px 12px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  text-align: center;
  background: rgba(11, 16, 18, 0.58);
}

.source-panel {
  justify-content: flex-start;
  margin: 12px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 520px);
  gap: 24px;
  align-items: end;
  padding: 20px 0 12px;
  border-top: 1px solid var(--line);
}

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

h1 {
  max-width: 980px;
  margin-bottom: 10px;
  font-size: clamp(2.25rem, 4.6vw, 4.05rem);
  line-height: 0.94;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(1.35rem, 2vw, 2.1rem);
  line-height: 1.05;
  letter-spacing: 0;
}

.hero-copy p,
.domain-card p,
.remediation-plan p,
.answer-feedback,
.answer-options strong {
  color: var(--muted);
  line-height: 1.55;
}

.hero-copy > p {
  max-width: 920px;
  margin-bottom: 16px;
}

.lab-label,
.section-label {
  display: block;
  margin-bottom: 8px;
  color: var(--gold);
  font-size: 0.74rem;
  font-weight: 950;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.boundary-strip,
.hero-proof,
.control-strip,
.progress-panel,
.quiz-card,
.score-panel,
.domain-card,
.plan-section {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 26, 29, 0.88);
  box-shadow: var(--shadow);
}

.boundary-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  width: fit-content;
  padding: 10px 12px;
}

.boundary-strip strong {
  color: var(--green);
}

.boundary-strip span {
  color: var(--muted);
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  overflow: hidden;
  background: var(--line);
}

.hero-proof div {
  min-width: 0;
  padding: 14px;
  background:
    linear-gradient(135deg, rgba(100, 227, 209, 0.14), rgba(255, 209, 102, 0.08)),
    rgba(18, 26, 29, 0.98);
}

.hero-proof span,
.score-row span,
.domain-card span,
.domain-card em,
.question-meta span,
.answer-feedback small,
.remediation-plan span {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
}

.hero-proof strong {
  display: block;
  margin-top: 8px;
  overflow-wrap: anywhere;
  font-size: 1.16rem;
  line-height: 1.1;
}

.control-strip {
  display: grid;
  grid-template-columns: minmax(190px, 0.9fr) minmax(140px, 0.45fr) minmax(260px, auto);
  gap: 12px;
  align-items: end;
  margin: 16px 0;
  padding: 12px;
}

.control-strip label,
.progress-panel label {
  display: grid;
  gap: 7px;
}

.control-strip label span,
.progress-panel label span,
.progress-identity span {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
}

input {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  color: var(--paper);
  background: rgba(11, 16, 18, 0.82);
}

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

.progress-panel {
  display: grid;
  grid-template-columns: minmax(160px, 0.48fr) minmax(150px, 0.42fr) minmax(160px, 0.42fr) minmax(320px, auto) minmax(190px, 0.52fr);
  gap: 12px;
  align-items: end;
  margin: 0 0 16px;
  padding: 12px;
  background:
    linear-gradient(135deg, rgba(155, 188, 255, 0.12), rgba(100, 227, 209, 0.06)),
    rgba(18, 26, 29, 0.9);
}

.progress-identity {
  display: grid;
  gap: 7px;
  align-self: center;
  min-width: 0;
}

.progress-identity strong {
  overflow-wrap: anywhere;
  font-size: 0.96rem;
}

.progress-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.progress-status {
  grid-column: 1 / -1;
  min-height: 20px;
  margin: -2px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.leaderboard-card {
  display: grid;
  align-self: stretch;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 9px;
  background: rgba(11, 16, 18, 0.5);
}

.leaderboard-card > span {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 950;
  text-transform: uppercase;
}

.leaderboard-list {
  display: grid;
  gap: 5px;
  min-height: 48px;
  margin: 6px 0 0;
  padding: 0;
  list-style: none;
}

.leaderboard-list li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) auto;
  gap: 7px;
  align-items: center;
  min-width: 0;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 850;
}

.leaderboard-list strong,
.leaderboard-list em,
.leaderboard-list span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.leaderboard-list strong {
  color: var(--paper);
}

.leaderboard-list em {
  color: var(--cyan);
  font-style: normal;
  text-align: right;
}

.leaderboard-list .leaderboard-empty {
  grid-template-columns: 1fr;
}

.progress-status[data-tone="good"] {
  color: var(--green);
}

.progress-status[data-tone="bad"] {
  color: var(--red);
}

.control-strip button,
.progress-panel button,
.score-panel button {
  min-height: 44px;
  padding: 10px 14px;
  font-size: 0.82rem;
  font-weight: 900;
}

#fresh-button,
#copy-receipt-button,
#save-progress-button {
  color: var(--ink);
  background: var(--green);
}

#resume-progress-button {
  color: var(--ink);
  background: var(--blue);
}

#sign-out-progress-button {
  color: var(--muted);
  background: rgba(11, 16, 18, 0.62);
}

#next-button[data-state="ready"] {
  color: var(--ink);
  background: var(--cyan);
}

#next-button[data-state="complete"] {
  color: var(--ink);
  background: var(--gold);
  opacity: 1;
}

#next-button[data-state="waiting"] {
  color: var(--muted);
  background: rgba(11, 16, 18, 0.62);
}

.quiz-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
  gap: 14px;
  align-items: start;
}

.quiz-card,
.score-panel,
.plan-section {
  padding: 16px;
}

.quiz-card[data-question-state="answered"],
.quiz-card[data-question-state="complete"] {
  border-color: rgba(100, 227, 209, 0.42);
}

.quiz-card[data-question-state="complete"] {
  background:
    linear-gradient(135deg, rgba(255, 209, 102, 0.12), rgba(100, 227, 209, 0.08)),
    rgba(18, 26, 29, 0.94);
}

.question-meta {
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.question-meta strong {
  color: var(--cyan);
  font-size: 0.86rem;
}

.quiz-card h2 {
  max-width: 1040px;
  margin-bottom: 14px;
}

.answer-options {
  display: grid;
  gap: 10px;
}

.answer-options button {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  width: 100%;
  min-height: 58px;
  padding: 10px;
  text-align: left;
}

.answer-options button:disabled {
  cursor: default;
  opacity: 1;
}

.answer-options button span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 7px;
  color: var(--ink);
  font-weight: 950;
  background: var(--paper);
}

.answer-options button.selected,
.answer-options button[aria-pressed="true"] {
  border-color: rgba(100, 227, 209, 0.74);
  background: rgba(100, 227, 209, 0.1);
}

.answer-options button.correct {
  border-color: rgba(157, 255, 143, 0.64);
  background: rgba(157, 255, 143, 0.12);
}

.answer-options button.wrong {
  border-color: rgba(255, 122, 122, 0.7);
  background: rgba(255, 122, 122, 0.1);
}

.answer-options button.correct span,
.answer-options button.wrong span {
  color: var(--ink);
}

.answer-options button.correct span {
  background: var(--green);
}

.answer-options button.wrong span {
  background: var(--red);
}

.answer-feedback {
  min-height: 86px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.answer-feedback strong {
  color: var(--paper);
}

.answer-feedback p {
  margin-bottom: 8px;
}

.score-panel {
  display: grid;
  gap: 12px;
  background: rgba(24, 35, 39, 0.94);
}

.score-meter {
  display: grid;
  min-height: 170px;
  place-items: center;
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 50% 30%, rgba(100, 227, 209, 0.24), transparent 60%),
    rgba(11, 16, 18, 0.8);
}

.score-meter span {
  font-size: clamp(3.6rem, 8vw, 6.2rem);
  font-weight: 950;
  line-height: 0.9;
}

.score-meter strong {
  color: var(--muted);
  text-transform: uppercase;
}

.score-row {
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}

.score-row strong {
  overflow-wrap: anywhere;
  text-align: right;
}

.receipt-panel {
  min-height: 164px;
  max-height: 220px;
  overflow: auto;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  color: var(--paper);
  background: var(--panel-soft);
  font:
    800 0.78rem/1.48 ui-monospace,
    SFMono-Regular,
    Menlo,
    Monaco,
    Consolas,
    "Liberation Mono",
    monospace;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.domain-section,
.plan-section {
  margin-top: 16px;
}

.section-intro {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 12px;
}

.domain-mix {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.domain-card {
  min-width: 0;
  padding: 13px;
}

.domain-card strong {
  display: block;
  margin: 4px 0 8px;
  color: var(--cyan);
  font-size: 1.75rem;
}

.domain-card p {
  min-height: 74px;
  margin-bottom: 10px;
  font-size: 0.88rem;
}

.domain-card em {
  display: block;
  font-style: normal;
}

.remediation-plan {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.remediation-plan li {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: rgba(11, 16, 18, 0.58);
}

.remediation-plan strong,
.remediation-plan span,
.remediation-plan a {
  display: block;
}

.remediation-plan strong {
  margin-bottom: 8px;
}

.remediation-plan a {
  color: var(--cyan);
  font-size: 0.82rem;
  font-weight: 900;
}

@media (max-width: 980px) {
  .hero-grid,
  .quiz-layout {
    grid-template-columns: 1fr;
  }

  .progress-panel {
    grid-template-columns: minmax(150px, 0.8fr) minmax(150px, 1fr) minmax(280px, 1.4fr);
  }

  .progress-panel label:nth-of-type(2) {
    grid-column: span 2;
  }

  .progress-actions {
    grid-column: 1 / -1;
  }

  .leaderboard-card {
    grid-column: 1 / -1;
  }

  .domain-mix,
  .remediation-plan {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .quiz-shell {
    padding-inline: 12px;
  }

  .quiz-topbar.site-topbar--customer[data-site-header] {
    display: grid !important;
    grid-template-columns: 1fr;
  }

  .quiz-topbar.site-topbar--customer[data-site-header] .site-topbar__nav {
    width: 100% !important;
    justify-items: stretch;
  }

  .quiz-topbar.site-topbar--customer[data-site-header] .site-primary-links,
  .quiz-topbar.site-topbar--customer[data-site-header] .site-secondary-links {
    display: flex !important;
    width: 100% !important;
    flex-wrap: nowrap !important;
    justify-content: flex-start;
    overflow-x: auto !important;
  }

  .quiz-topbar.site-topbar--customer[data-site-header] .site-primary-links a,
  .quiz-topbar.site-topbar--customer[data-site-header] .site-secondary-links a {
    flex: 0 0 auto;
    min-height: 44px !important;
  }

  .quiz-topbar,
  .section-intro {
    display: grid;
    align-items: start;
  }

  .quiz-topbar nav,
  .source-panel {
    justify-content: start;
  }

  .control-strip,
  .control-actions,
  .progress-panel,
  .progress-actions,
  .domain-mix,
  .remediation-plan {
    grid-template-columns: 1fr;
  }

  .hero-proof {
    display: none;
  }

  .progress-panel label:nth-of-type(2),
  .progress-actions,
  .leaderboard-card {
    grid-column: auto;
  }

  .answer-options button {
    grid-template-columns: 30px minmax(0, 1fr);
  }
}

.ace-plan {
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid rgba(100, 227, 209, 0.26);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(100, 227, 209, 0.12), rgba(155, 188, 255, 0.08)),
    rgba(11, 16, 18, 0.72);
  color: var(--paper);
}

.ace-plan strong {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--font-display);
  font-size: 1rem;
}

.ace-plan p {
  margin: 0 0 0.75rem;
  color: var(--muted);
}

.readiness-gate {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 0.85rem;
  padding: 0.78rem;
  border: 1px solid rgba(100, 227, 209, 0.22);
  border-radius: var(--radius);
  background: rgba(247, 247, 241, 0.06);
}

.readiness-gate[data-state="exam-ready"] {
  border-color: rgba(157, 255, 143, 0.42);
  background: rgba(157, 255, 143, 0.12);
}

.readiness-gate span,
.readiness-gate small {
  font-size: 0.74rem;
  font-weight: 950;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.readiness-gate p {
  margin: 0;
}

.readiness-gate small {
  color: var(--muted);
  letter-spacing: 0.04em;
}

.ace-plan ul {
  margin: 0;
  padding-left: 1.1rem;
}

.ace-plan li + li {
  margin-top: 0.35rem;
}