:root {
  /* Portfolio-style blues (meetrb-adjacent, not card-brand literal) */
  --accent-primary: #1a5588;
  --accent-primary-deep: #0c2440;
  --accent-primary-tint: #e8f1f9;
  --accent-yellow: #f5d547;
  --accent-coral: #e85d4c;
  --bg-page: #f7f7f5;
  --ink-main: #0a0a0a;
  --ink-muted: #3d3d3d;
  --border-strong: #0a0a0a;
  --radius-soft: 6px;
  --shadow-offset: 4px;
  --font-sans: "Source Sans 3", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Libre Baskerville", Georgia, "Times New Roman", serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  background: var(--bg-page);
  color: var(--ink-main);
  font-size: 1.02rem;
  line-height: 1.55;
}

img {
  max-width: 100%;
  display: block;
}

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

main {
  display: block;
}

.site-header {
  border-bottom: 3px solid var(--border-strong);
  background: white;
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

a.brand-pill {
  text-decoration: none;
  color: white;
}

.brand-pill {
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 2px solid var(--border-strong);
  background: var(--accent-primary);
  color: white;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.8rem;
  display: inline-block;
}

a.brand-pill:hover {
  filter: brightness(1.06);
}

a.brand-pill:focus-visible {
  outline: 3px solid var(--accent-primary);
  outline-offset: 2px;
}

.brand-tagline {
  font-size: 0.8rem;
  color: var(--ink-muted);
  font-family: var(--font-mono);
}

.header-cta {
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-soft);
  background: var(--accent-yellow);
  border: 2px solid var(--border-strong);
  color: var(--ink-main);
  font-weight: 600;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.75rem;
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--border-strong);
}

.header-cta:hover,
.header-cta:focus-visible {
  transform: translate(-1px, -1px);
  box-shadow: calc(var(--shadow-offset) + 1px) calc(var(--shadow-offset) + 1px) 0
    var(--border-strong);
}

.page {
  max-width: 1040px;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 3.25rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 2.1fr) minmax(0, 1.4fr);
  gap: 1.75rem;
  border: 3px solid var(--border-strong);
  background: var(--accent-primary-tint);
  padding: 2rem 1.85rem;
  position: relative;
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--border-strong);
}

.hero::before {
  content: "Introduction";
  position: absolute;
  inset-inline: 1.2rem;
  top: -0.9rem;
  padding: 0.2rem 0.55rem;
  background: var(--accent-yellow);
  border: 2px solid var(--border-strong);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: none;
  letter-spacing: 0.04em;
  font-weight: 600;
}

.hero-copy h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.8vw, 2.75rem);
  font-weight: 700;
  margin: 0 0 0.85rem;
  text-transform: none;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.hero-subtitle {
  margin: 0 0 1.35rem;
  max-width: 36rem;
  color: var(--ink-muted);
  line-height: 1.65;
}

.hero-cta-row {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.25rem;
}

.hero-linkedin {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.hero-linkedin:hover,
.hero-linkedin:focus-visible {
  color: var(--accent-primary-deep);
}

.hero-aside {
  display: flex;
  align-items: stretch;
}

.hero-stats-block {
  border: 3px solid var(--border-strong);
  background: white;
  padding: 1.15rem 1.2rem;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.stats-heading {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin: 0;
  color: var(--ink-muted);
}

.stats-list {
  list-style: square;
  padding-left: 1.2rem;
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.55;
}

.stats-list li + li {
  margin-top: 0.25rem;
}

.quiz-shell {
  display: grid;
  gap: 1.5rem;
  align-items: flex-start;
}

.quiz-card,
.result-card {
  border: 3px solid var(--border-strong);
  background: white;
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--border-strong);
  padding: 1.65rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.quiz-header {
  border-bottom: 2px solid var(--border-strong);
  padding-bottom: 0.8rem;
}

.quiz-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 0.25rem;
  color: var(--ink-muted);
}

.quiz-header h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.45rem);
  font-weight: 700;
  line-height: 1.35;
  text-transform: none;
  letter-spacing: -0.01em;
}

.quiz-header h2 {
  margin: 0;
  font-size: 1.3rem;
}

.quiz-form {
  margin: 0;
}

.quiz-options {
  display: grid;
  gap: 0.6rem;
}

.quiz-option {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-soft);
  border: 2px solid var(--border-strong);
  cursor: pointer;
  background: #fdfdfd;
  transition: background 0.08s ease-out, transform 0.08s ease-out, box-shadow 0.08s ease-out;
}

.quiz-option:hover {
  background: var(--accent-primary-tint);
}

.quiz-option input {
  margin-top: 0.15rem;
}

.quiz-option-label {
  font-weight: 600;
}

.quiz-option-help {
  margin-top: 0.08rem;
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.quiz-option.selected {
  background: var(--accent-yellow);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--border-strong);
  transform: translate(-1px, -1px);
}

.quiz-footer {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.quiz-footer-spacer {
  flex: 1;
}

.btn {
  border-radius: var(--radius-soft);
  border: 2px solid var(--border-strong);
  padding: 0.55rem 1.05rem;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  cursor: pointer;
  background: white;
  color: var(--ink-main);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--border-strong);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent-primary);
  color: white;
}

.btn-ghost {
  background: #fdfdfd;
}

.btn-full {
  width: 100%;
  justify-content: center;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

.btn:not(:disabled):hover,
.btn:not(:disabled):focus-visible {
  transform: translate(-1px, -1px);
  box-shadow: calc(var(--shadow-offset) + 1px) calc(var(--shadow-offset) + 1px) 0
    var(--border-strong);
}

.result-header {
  border-bottom: 2px solid var(--border-strong);
  padding-bottom: 0.8rem;
}

.result-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 0.25rem;
  color: var(--ink-muted);
}

.result-heading {
  font-family: var(--font-display);
  margin: 0;
  font-size: clamp(1.45rem, 3vw, 1.75rem);
  font-weight: 700;
  text-transform: none;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.result-body {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  font-size: 0.97rem;
  line-height: 1.45;
}

.result-body > .result-pill {
  margin-bottom: 0.35rem;
}

.result-text {
  margin: 0;
  color: var(--ink-muted);
}

.result-text strong {
  color: var(--ink-main);
  font-weight: 600;
}

.result-callout {
  margin-top: 0.5rem;
  padding: 0.85rem 1rem 0.95rem;
  border: 2px solid var(--border-strong);
  border-left: 5px solid var(--accent-yellow);
  background: var(--accent-primary-tint);
  box-shadow: 3px 3px 0 var(--border-strong);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.result-callout-intro {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--ink-muted);
  line-height: 1.35;
}

.result-callout-verdict {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--ink-main);
}

.result-footer {
  margin-top: 0.65rem;
  padding-top: 0.85rem;
  border-top: 2px solid var(--border-strong);
  display: grid;
  gap: 0.55rem;
}

.result-pill {
  display: inline-block;
  align-self: flex-start;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  border: 2px solid var(--border-strong);
  background: var(--accent-coral);
  color: #050505;
  font-size: 0.74rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.footnote {
  border: 3px solid var(--border-strong);
  padding: 1.15rem 1.35rem;
  background: var(--accent-primary-deep);
  color: #f2f2f0;
  font-size: 0.92rem;
  line-height: 1.65;
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--border-strong);
}

.footnote strong {
  color: var(--accent-yellow);
}

/* Fun fact sits inside .quiz-card, below the nav buttons */
.quiz-card .fun-fact {
  margin-top: 1.25rem;
  padding: 1rem 1.1rem;
  border: 2px solid var(--border-strong);
  background: var(--accent-primary-tint);
  box-shadow: 3px 3px 0 var(--border-strong);
}

.fun-fact-heading {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin: 0 0 0.65rem;
  color: var(--ink-main);
}

.fun-fact-body {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--ink-muted);
}

.fun-fact-body a {
  color: var(--accent-primary);
  font-weight: 600;
}

.visually-hidden {
  border: 0;
  clip: rect(0 0 0 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
}

@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-cta-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr);
    padding: 1.4rem 1.1rem;
  }

  .quiz-card,
  .result-card {
    padding: 1.25rem 1.2rem;
  }

  .quiz-footer {
    flex-wrap: wrap;
  }

  .quiz-footer-spacer {
    display: none;
  }
}