:root {
  color-scheme: light;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #f4f6f8;
  color: #111827;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  min-height: 100vh;
}
a {
  color: inherit;
  text-decoration: none;
}
.site-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand {
  max-width: 520px;
}
.logo {
  font-size: 1.25rem;
  font-weight: 700;
}
.tagline {
  margin: 0.5rem 0 0;
  color: #4b5563;
}
.site-nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}
.site-nav a {
  color: #111827;
  font-weight: 500;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.25rem;
  border-radius: 999px;
  background: #1f2937;
  color: white;
  border: none;
  cursor: pointer;
  transition: background 0.2s ease;
}
.button:hover {
  background: #111827;
}
.secondary {
  background: transparent;
  border: 1px solid #1f2937;
  color: #1f2937;
}
main {
  padding: 2rem;
}
.hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2rem;
  align-items: start;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: #2563eb;
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
}
.hero h1 {
  margin: 0;
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 1.05;
}
.hero p {
  margin: 1.25rem 0;
  max-width: 34rem;
  color: #4b5563;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.hero-stats {
  display: grid;
  gap: 1rem;
}
.stat-card {
  background: #111827;
  color: white;
  padding: 1.5rem;
  border-radius: 1rem;
}
.stat-value {
  display: block;
  font-size: 2rem;
  font-weight: 700;
}
.stat-label {
  margin-top: 0.5rem;
  color: #d1d5db;
}
.persona-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  margin: 3rem 0;
}
.persona-card {
  background: white;
  padding: 1.75rem;
  border-radius: 1rem;
  border: 1px solid #e5e7eb;
}
.persona-card h2 {
  margin-top: 0;
}
.persona-card ul {
  list-style: disc;
  padding-left: 1.25rem;
  margin: 1rem 0 0;
}
.overview {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}
.overview-list {
  display: grid;
  gap: 1rem;
}
.overview-list > div {
  background: white;
  padding: 1.25rem;
  border-radius: 1rem;
  border: 1px solid #e5e7eb;
}
.quiz-preview {
  margin: 3rem 0;
}
.quiz-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 1rem;
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.testimonial-banner {
  background: #111827;
  color: white;
  padding: 2rem;
  border-radius: 1rem;
  margin: 3rem 0;
}
.testimonial-banner p {
  margin: 0 0 0.75rem;
}
.testimonial-banner span {
  color: #9ca3af;
}
.content-page {
  max-width: 900px;
  margin: 0 auto;
}
.press-grid,
.author-cards {
  display: grid;
  gap: 1.5rem;
  margin: 2rem 0;
}
.press-card,
.author-card {
  padding: 1.5rem;
  background: white;
  border-radius: 1rem;
  border: 1px solid #e5e7eb;
}
.press-card h2,
.author-card h2 {
  margin-top: 0;
}
.media-logos .logo-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}
.logo-grid span {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f8fafc;
  height: 80px;
  border-radius: 0.75rem;
  font-weight: 700;
  color: #111827;
}
.author-photo {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: #1f2937;
  color: white;
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  margin-bottom: 1rem;
}
.author-role {
  color: #2563eb;
  margin: 0.25rem 0 1rem;
}
.author-bio {
  background: white;
  padding: 1.5rem;
  border-radius: 1rem;
  border: 1px solid #e5e7eb;
  margin-bottom: 1.5rem;
}
.quiz-page .quiz-form {
  max-width: 700px;
  background: white;
  padding: 1.75rem;
  border-radius: 1rem;
  border: 1px solid #e5e7eb;
}
.step {
  margin-bottom: 1.5rem;
}
.step h2 {
  margin-bottom: 1rem;
}
label {
  display: block;
  margin-bottom: 0.75rem;
  color: #374151;
}
input[type="text"],
input[type="email"] {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid #d1d5db;
  border-radius: 0.75rem;
  font-size: 1rem;
  margin-top: 0.5rem;
}
.quiz-navigation {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
}
.quiz-result {
  max-width: 700px;
  margin-top: 1.5rem;
  padding: 1.5rem;
  background: #ecfdf5;
  border: 1px solid #10b981;
  border-radius: 1rem;
}
.site-footer {
  background: #111827;
  color: #d1d5db;
  padding: 2rem;
  margin-top: 2rem;
}
.site-footer nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 1rem 0;
}
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }
}
.article-content {
  max-width: 900px;
  margin: 0 auto;
}
.article-header {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 2px solid #e5e7eb;
}
.article-header h1 {
  margin: 0 0 1.5rem;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}
.article-meta {
  display: flex;
  gap: 1rem;
}
.author-byline {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.author-photo-small {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #1f2937;
  color: white;
  display: grid;
  place-items: center;
  font-weight: 700;
  flex-shrink: 0;
}
.author-byline strong {
  display: block;
  margin-bottom: 0.25rem;
}
.author-byline p {
  margin: 0 0 0.25rem;
  color: #2563eb;
  font-size: 0.9rem;
}
.author-byline time {
  color: #4b5563;
  font-size: 0.9rem;
}
.article-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #374151;
  margin-bottom: 2rem;
}
.article-body h2 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-size: 1.6rem;
}
.article-body p {
  margin-bottom: 1rem;
}
.article-body ul {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}
.article-body li {
  margin-bottom: 0.75rem;
}
.article-body table {
  font-size: 0.95rem;
}
.article-body th {
  background: #f3f4f6;
  font-weight: 700;
}
.article-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 2px solid #e5e7eb;
}
.author-card-full {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem;
  background: #f9fafb;
  border-radius: 1rem;
}
.author-card-full h3 {
  margin: 0 0 0.25rem;
}
.author-card-full .author-role {
  color: #2563eb;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}.thought-leadership {
  margin: 3rem 0;
}
.thought-leadership h2 {
  margin-bottom: 1rem;
}
.article-card,
.article-preview {
  background: white;
  padding: 1.5rem;
  border-radius: 1rem;
  border: 1px solid #e5e7eb;
  margin-bottom: 1.5rem;
}
.article-card h3,
.article-preview h3 {
  margin-top: 0;
}
.article-card a,
.article-preview a {
  color: #2563eb;
}
.author-credit {
  color: #4b5563;
  font-size: 0.9rem;
  margin: 1rem 0 0;
}
.read-more {
  display: inline-block;
  margin-top: 0.75rem;
  color: #2563eb;
  font-weight: 600;
}
.featured-article {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid #e5e7eb;
}@media (max-width: 720px) {
  .site-header {
    padding: 1rem;
  }
  .site-nav {
    width: 100%;
    justify-content: space-between;
  }
  .persona-grid,
  .press-grid,
  .author-cards,
  .media-logos .logo-grid {
    grid-template-columns: 1fr;
  }
  .quiz-navigation {
    flex-direction: column;
    align-items: stretch;
  }
  .article-body {
    font-size: 1rem;
  }
  .author-card-full {
    flex-direction: column;
  }
}