@import url('https://fonts.googleapis.com/css2?family=Archivo+Black&family=IBM+Plex+Mono:wght@500;600&family=IBM+Plex+Sans:wght@400;500;600;700&display=swap');

:root {
  --brand-violet: #8b5cf6;
  --brand-violet-light: #a78bfa;
  --brand-violet-deep: #7c3aed;
  --brand-night: #120e2c;
  --brand-cream: #f4f0e7;
  --brand-paper: #fffdf7;
  --brand-muted: #655f78;
  --brand-line: rgba(18, 14, 44, .2);
  --brand-display: "Archivo Black", Impact, sans-serif;
  --brand-body: "IBM Plex Sans", sans-serif;
  --brand-mono: "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0 !important;
  min-height: 100vh;
  color: var(--brand-night) !important;
  background:
    linear-gradient(rgba(124, 58, 237, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 58, 237, .045) 1px, transparent 1px),
    var(--brand-cream) !important;
  background-size: 32px 32px !important;
  font-family: var(--brand-body) !important;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--brand-violet-deep) !important; }
a:hover { color: var(--brand-night) !important; }
p, li, dd, td { color: var(--brand-night) !important; }
h1, h2, h3, h4, h5, h6, strong, b {
  color: var(--brand-night) !important;
}

/* Shared site shell */
.header {
  margin: 0 !important;
  padding: 0 !important;
  background: var(--brand-cream) !important;
  border-bottom: 2px solid var(--brand-night) !important;
}
.header .container {
  width: min(1240px, calc(100% - 40px)) !important;
  max-width: 1240px !important;
  min-height: 84px;
  margin: 0 auto !important;
  padding: 0 !important;
  display: flex !important;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}
.site-title {
  display: inline-flex !important;
  align-items: center;
  gap: 12px;
  margin: 0 !important;
  color: var(--brand-night) !important;
  font: 24px/1 var(--brand-display) !important;
  letter-spacing: -.04em !important;
  text-transform: uppercase;
  white-space: nowrap;
}
.site-title::before {
  content: "";
  width: 47px;
  aspect-ratio: 1;
  flex: 0 0 auto;
  background: url('/favicon.svg') center / contain no-repeat;
  filter: drop-shadow(4px 4px 0 var(--brand-night));
  transform: rotate(-3deg);
}
.site-title strong { color: var(--brand-violet-deep) !important; font: inherit; }
.nav { display: flex !important; align-items: center; justify-content: flex-end; gap: clamp(18px, 3vw, 38px) !important; }
.nav-link {
  color: var(--brand-night) !important;
  font: 600 11px/1 var(--brand-mono) !important;
  letter-spacing: .08em !important;
  text-transform: uppercase;
}
.nav-link::after { height: 2px !important; bottom: -7px !important; background: var(--brand-violet) !important; }
.nav-link:hover { color: var(--brand-violet-deep) !important; }
.nav-link:last-child[href*="youtube"] {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
  color: white !important;
  background: var(--brand-violet) !important;
  border: 2px solid var(--brand-night);
  box-shadow: 3px 3px 0 var(--brand-night);
}
.nav-link:last-child[href*="youtube"]::after { display: none; }

.main, main, section, article, .article-header, .article-content,
[class*="section"], [class*="content"], [class*="container"] {
  background-color: transparent !important;
}
.main { min-height: calc(100vh - 180px); padding: 0 !important; }

.footer {
  margin: 80px 0 0 !important;
  padding: 40px 0 48px !important;
  color: var(--brand-cream) !important;
  background: var(--brand-night) !important;
  border: 0 !important;
}
.footer .container { width: min(1240px, calc(100% - 40px)) !important; max-width: 1240px !important; margin: 0 auto !important; padding: 0 !important; }
.footer p, .footer a { color: #bdb5d5 !important; font: 500 12px/1.4 var(--brand-mono) !important; }
.footer a[style] {
  padding: 12px 18px !important;
  color: white !important;
  background: var(--brand-violet) !important;
  border: 2px solid var(--brand-cream);
  border-radius: 0 !important;
  box-shadow: 3px 3px 0 var(--brand-cream);
  text-transform: uppercase;
}

/* Editorial page headers */
.about-section > .container, .contact-section > .container, .privacy-section > .container {
  width: min(1080px, calc(100% - 40px)) !important;
  max-width: 1080px !important;
  margin: 0 auto !important;
  padding: clamp(70px, 9vw, 116px) 0 !important;
}
.about-header, .contact-header, .privacy-header {
  position: relative;
  margin: 0 0 52px !important;
  padding: 0 0 30px !important;
  text-align: left !important;
  border-bottom: 3px solid var(--brand-night);
}
.about-header::before, .contact-header::before, .privacy-header::before {
  content: "PROMPT CHAMPS / FIELD NOTES";
  display: block;
  margin-bottom: 22px;
  color: var(--brand-violet-deep);
  font: 600 11px/1 var(--brand-mono);
  letter-spacing: .12em;
}
.about-title, .contact-title, .privacy-title {
  max-width: 900px;
  margin: 0 !important;
  color: var(--brand-night) !important;
  font: clamp(48px, 8vw, 88px)/.92 var(--brand-display) !important;
  letter-spacing: -.065em !important;
  text-transform: uppercase;
}
.about-subtitle, .contact-subtitle, .privacy-date {
  max-width: 700px;
  margin: 24px 0 0 !important;
  color: var(--brand-muted) !important;
  font: 20px/1.5 var(--brand-body) !important;
}

.about-content, .contact-content { display: grid !important; grid-template-columns: repeat(2, 1fr); gap: 22px !important; max-width: none !important; }
.about-section-content, .contact-section-content, .privacy-section-content {
  margin: 0 !important;
  padding: clamp(26px, 4vw, 38px) !important;
  background: var(--brand-paper) !important;
  border: 2px solid var(--brand-night) !important;
  box-shadow: 6px 6px 0 var(--brand-violet) !important;
}
.about-section-content h2, .contact-section-content h2, .privacy-section-content h2 {
  margin: 0 0 18px !important;
  font: 25px/1.08 var(--brand-display) !important;
  letter-spacing: -.035em;
  text-transform: uppercase;
}
.about-section-content p, .contact-section-content p, .privacy-section-content p,
.about-section-content li, .privacy-section-content li { font-size: 16px !important; line-height: 1.65 !important; }
.about-section-content ul, .privacy-section-content ul { padding-left: 22px !important; }
.privacy-content { display: grid !important; gap: 22px; max-width: none !important; }
.privacy-section-content { display: grid; grid-template-columns: minmax(230px, .65fr) minmax(0, 1.35fr); column-gap: 38px; }
.privacy-section-content h2 { grid-row: 1 / span 5; }

.cta-button, .contact-btn, .capture-btn, .email-btn-submit, #copyBtn, .action-btn.primary {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px !important;
  color: white !important;
  background: var(--brand-violet) !important;
  border: 2px solid var(--brand-night) !important;
  border-radius: 0 !important;
  box-shadow: 4px 4px 0 var(--brand-night) !important;
  font: 600 12px/1 var(--brand-mono) !important;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.cta-button:hover, .contact-btn:hover, .capture-btn:hover { background: var(--brand-violet-deep) !important; transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--brand-night) !important; }
.contact-btn svg { color: white !important; }
.email-modal { background: rgba(18, 14, 44, .82) !important; backdrop-filter: blur(8px); }
.email-modal-content {
  color: var(--brand-night) !important;
  background: var(--brand-paper) !important;
  border: 3px solid var(--brand-night) !important;
  border-radius: 0 !important;
  box-shadow: 9px 9px 0 var(--brand-violet) !important;
}
.email-modal-content h3, .email-modal-content p { color: var(--brand-night) !important; }
.math-problem, .email-address { color: var(--brand-violet-deep) !important; }
.email-input, .code-input, #nlMathAnswer {
  color: var(--brand-night) !important;
  background: white !important;
  border: 2px solid var(--brand-night) !important;
  border-radius: 0 !important;
}

/* Newsletter */
.capture-section { padding: clamp(70px, 9vw, 116px) 20px !important; }
.capture-container {
  max-width: 900px !important;
  padding: clamp(38px, 7vw, 76px) !important;
  background: var(--brand-paper) !important;
  border: 3px solid var(--brand-night) !important;
  border-radius: 0 !important;
  box-shadow: 10px 10px 0 var(--brand-violet) !important;
  text-align: left !important;
}
.capture-badge {
  display: inline-block !important;
  padding: 9px 12px !important;
  color: white !important;
  background: var(--brand-violet-deep) !important;
  border: 2px solid var(--brand-night) !important;
  border-radius: 0 !important;
  font: 600 11px/1 var(--brand-mono) !important;
  letter-spacing: .1em;
  text-transform: uppercase;
  transform: rotate(-2deg);
}
.capture-title {
  max-width: 760px;
  margin: 26px 0 18px !important;
  color: var(--brand-night) !important;
  font: clamp(48px, 8vw, 82px)/.92 var(--brand-display) !important;
  letter-spacing: -.06em !important;
  text-transform: uppercase;
}
.capture-subtitle { max-width: 700px !important; margin: 0 0 36px !important; color: var(--brand-muted) !important; font-size: 20px !important; }
.benefit-text, .benefit-text strong, .code-instructions p, .timeline-content,
.benefits-title, .actions-title, .success-title { color: var(--brand-night) !important; }
.success-subtitle { color: var(--brand-muted) !important; }
.benefits-list { display: grid !important; gap: 0 !important; margin: 30px 0 !important; padding: 0 !important; border-top: 2px solid var(--brand-night); }
.benefit-item { display: grid !important; grid-template-columns: 36px 1fr; gap: 15px !important; padding: 18px 0 !important; border-bottom: 1px solid var(--brand-line) !important; }
.benefit-icon { color: var(--brand-violet-deep) !important; background: transparent !important; font-family: var(--brand-display); }
.email-capture-form {
  margin-top: 32px !important;
  padding: 28px !important;
  background: #eee8fb !important;
  border: 2px solid var(--brand-night) !important;
  border-radius: 0 !important;
}
.email-input-group, .code-input-group { gap: 10px !important; }
.email-input, .code-input { min-height: 54px !important; padding: 0 16px !important; }
#nlMathProblem { color: var(--brand-night) !important; font-family: var(--brand-mono) !important; }
.social-proof-text, .guarantee-text { color: var(--brand-muted) !important; }
.guarantee { background: transparent !important; border: 0 !important; }

/* Article index */
.articles-hero {
  width: min(1240px, calc(100% - 40px)) !important;
  max-width: 1240px !important;
  margin: 0 auto !important;
  padding: clamp(70px, 9vw, 116px) 0 58px !important;
  text-align: left !important;
  border-bottom: 3px solid var(--brand-night);
}
.articles-hero::before { content: "PROMPT CHAMPS / DEEP DIVES"; display: block; margin-bottom: 22px; color: var(--brand-violet-deep); font: 600 11px var(--brand-mono); letter-spacing: .12em; }
.articles-hero h1 { margin: 0 !important; font: clamp(52px, 9vw, 96px)/.9 var(--brand-display) !important; letter-spacing: -.065em !important; text-transform: uppercase; }
.articles-hero p { max-width: 720px !important; margin: 26px 0 0 !important; color: var(--brand-muted) !important; font-size: 20px !important; }
.content-tabs { width: min(1240px, calc(100% - 40px)) !important; margin: 0 auto !important; border: 0 !important; }
.tabs-container { max-width: none !important; margin: 0 !important; padding: 26px 0 !important; }
.tab-link { color: var(--brand-night) !important; font: 600 12px var(--brand-mono) !important; text-transform: uppercase; }
.tab-link.active { color: var(--brand-violet-deep) !important; border-color: var(--brand-violet) !important; }
.content-container { width: min(1240px, calc(100% - 40px)) !important; max-width: 1240px !important; margin: 0 auto !important; padding: 24px 0 80px !important; }
.articles-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 620px)) !important; }
.article-card {
  overflow: visible !important;
  color: var(--brand-night) !important;
  background: var(--brand-paper) !important;
  border: 3px solid var(--brand-night) !important;
  border-radius: 0 !important;
  box-shadow: 8px 8px 0 var(--brand-violet) !important;
}
.article-card:hover { transform: translate(-2px, -2px) !important; box-shadow: 11px 11px 0 var(--brand-violet) !important; }
.article-image { min-height: 220px !important; display: flex !important; align-items: end !important; padding: 24px !important; color: white !important; background: var(--brand-night) !important; font: 600 12px var(--brand-mono) !important; letter-spacing: .1em; text-transform: uppercase; }
.article-card .article-content { padding: 32px !important; background: var(--brand-paper) !important; }
.article-category { color: var(--brand-violet-deep) !important; font: 600 11px var(--brand-mono) !important; letter-spacing: .08em; text-transform: uppercase; }
.article-card .article-title { margin: 14px 0 !important; font: 30px/1.08 var(--brand-display) !important; letter-spacing: -.04em !important; text-transform: uppercase; }
.article-card .article-title { color: var(--brand-night) !important; }
.article-excerpt { color: var(--brand-muted) !important; }

/* Long-form article */
body > .article-header {
  max-width: none !important;
  margin: 0 !important;
  padding: clamp(70px, 9vw, 116px) 20px 64px !important;
  border-bottom: 3px solid var(--brand-night) !important;
}
body > .article-header .article-meta { display: block !important; width: min(980px, 100%) !important; max-width: 980px !important; margin: 0 auto !important; }
.article-top-line { display: flex !important; align-items: center; justify-content: space-between; gap: 24px; border-color: var(--brand-night) !important; }
.article-meta-compact { display: flex !important; gap: 18px !important; }
body > .article-header .article-title { margin: 30px 0 0 !important; color: var(--brand-night) !important; font: clamp(46px, 7vw, 82px)/.96 var(--brand-display) !important; letter-spacing: -.055em !important; text-transform: uppercase; }
body > .article-content {
  width: min(760px, calc(100% - 40px)) !important;
  max-width: 760px !important;
  margin: 0 auto !important;
  padding: clamp(55px, 8vw, 90px) 0 !important;
  background: transparent !important;
  font-family: var(--brand-body) !important;
}
body > .article-content p, body > .article-content li { color: var(--brand-night) !important; font-size: 19px !important; line-height: 1.72 !important; }
body > .article-content h2 { margin: 68px 0 20px !important; font: 38px/1.05 var(--brand-display) !important; letter-spacing: -.045em; text-transform: uppercase; }
body > .article-content h3 { font: 26px/1.15 var(--brand-display) !important; text-transform: uppercase; }
.timeline-moment, .comparison-box, .quote-box, .regional-card, .stats-highlight {
  background: var(--brand-paper) !important;
  border: 2px solid var(--brand-night) !important;
  border-radius: 0 !important;
  box-shadow: 5px 5px 0 var(--brand-violet) !important;
}
.regional-grid { gap: 16px !important; }
.term, .big-number { color: var(--brand-violet-deep) !important; }
.stats-highlight { color: var(--brand-night) !important; }
.quote-box { border-left: 8px solid var(--brand-violet) !important; }
.back-to-articles a { font: 600 12px var(--brand-mono) !important; letter-spacing: .06em; text-transform: uppercase; }

@media (max-width: 760px) {
  .header { background: var(--brand-cream) !important; backdrop-filter: none; }
  .header .container { width: calc(100% - 28px) !important; min-height: 74px; }
  .site-title { font-size: 19px !important; }
  .site-title::before { width: 42px; }
  .nav { display: none !important; }
  .about-section > .container, .contact-section > .container, .privacy-section > .container { width: calc(100% - 28px) !important; }
  .about-title, .contact-title, .privacy-title { font-size: clamp(42px, 13vw, 64px) !important; }
  .about-content, .contact-content { grid-template-columns: 1fr; }
  .privacy-section-content { display: block; }
  .privacy-section-content h2 { margin-bottom: 18px !important; }
  .capture-section { padding-inline: 14px !important; }
  .capture-container { padding: 34px 24px !important; box-shadow: 6px 6px 0 var(--brand-violet) !important; }
  .capture-title { font-size: clamp(41px, 13vw, 60px) !important; }
  .email-capture-form { padding: 20px 16px !important; }
  .email-input-group, .code-input-group { display: grid !important; grid-template-columns: 1fr !important; }
  .articles-hero, .content-tabs, .content-container { width: calc(100% - 28px) !important; }
  .articles-hero h1 { font-size: clamp(47px, 14vw, 68px) !important; }
  body > .article-content { width: calc(100% - 28px) !important; }
  body > .article-header { padding-inline: 14px !important; }
  body > .article-header .article-title { font-size: clamp(39px, 11vw, 58px) !important; }
  body > .article-content h2 { font-size: 31px !important; }
  .footer .container { width: calc(100% - 28px) !important; }
}

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