/* ============================================
   NATIVE VIRAL LOOP — GLOBAL DESIGN SYSTEM
   Extracted from shared styles across all pages
   ============================================ */

/* RESET */
*{margin:0;padding:0;box-sizing:border-box}

/* CUSTOM PROPERTIES */
:root{
  --yellow:#FFF300;
  --black:#000;
  --white:#FFF;
  --indigo:#4643E8;
  --text:#FFF;
}

/* HTML & BODY */
html{scroll-behavior:smooth}

body{
  font-family:'IBM Plex Mono',monospace;
  background:#FFF;
  color:#000;
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* TYPOGRAPHY */
h1, h2, h3, h4, h5, h6{
  font-family:'Space Grotesk',sans-serif;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:-0.03em;
}

h1{
  font-size:clamp(3rem,7vw,5rem);
  line-height:0.95;
  letter-spacing:-0.05em;
  color:#000;
  padding-bottom:8px;
}
.brand-label{
  font-size:0.85rem;
  line-height:1;
  letter-spacing:0.06em;
  color:#FFF;
  background:#000;
  display:block;
  width:fit-content;
  padding:8px 14px;
  font-weight:700;
  font-family:'Space Grotesk',sans-serif;
  text-transform:uppercase;
  margin-top:0;
  margin-bottom:16px;
}

h2{
  font-size:clamp(1.8rem,3.5vw,2.6rem);
  font-weight:700;
  letter-spacing:-0.04em;
  line-height:1.1;
  margin-bottom:16px;
}

h3{
  font-size:1.1rem;
  font-weight:700;
  color:#000;
  text-transform:uppercase;
  letter-spacing:0.06em;
  margin-bottom:20px;
  margin-top:48px;
}

p{margin-bottom:14px;color:#000;font-family:'IBM Plex Mono',monospace}
strong{color:#000;font-weight:700}

mark{
  background:#000;
  color:#FFF300;
  padding:2px 6px;
  font-weight:700;
}
h1 mark{
  display:inline-block;
  padding:2px 8px 6px;
  margin-bottom:12px;
}

/* LAYOUT */
.pw{max-width:900px;margin:0 auto;padding:0 28px}

/* FULL-WIDTH BANDS */
.band{
  position:relative;z-index:1;
  padding:64px 28px;
}
.band .bw{max-width:900px;margin:0 auto}
.band-yellow{background:#FFF300;color:#000}
.band-black{background:#000;color:#FFF}
.band-white{background:#FFF;color:#000}
.band-indigo{background:#4643E8;color:#FFF}
@media(max-width:640px){.band{padding:40px 20px}}

/* HERO */
.hero{
  padding:100px 0 24px;
  position:relative;
}
.hero-header{
  display:flex;align-items:center;gap:28px;margin-bottom:28px;flex-wrap:wrap;
}
.hero .label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  background:#000;
  border:3px solid #000;
  font-size:0.75rem;
  font-weight:700;
  color:#FFF300;
  letter-spacing:0.02em;
  text-transform:uppercase;
  font-family:'Space Grotesk',sans-serif;
  text-decoration:none;
}
.hero .label .dot{
  width:7px;height:7px;background:#FFF300;
  animation:pulse 2s ease infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.3}}

.hero h1{
  font-size:clamp(3rem,7vw,5rem);
  font-weight:700;
  line-height:0.95;
  letter-spacing:-0.05em;
  color:#000;
  padding-bottom:8px;
  text-transform:uppercase;
}
.hero .sub{
  margin-top:24px;
  font-size:1.2rem;
  font-weight:400;
  color:#000;
  max-width:560px;
  line-height:1.65;
  font-family:'IBM Plex Mono',monospace;
}

/* SITE NAVIGATION */
.site-nav{
  display:flex;gap:4px;
}
.nav-link{
  padding:8px 16px;
  font-size:0.72rem;
  font-weight:700;
  color:#000;
  background:#FFF;
  border:2px solid #000;
  text-decoration:none;
  font-family:'Space Grotesk',sans-serif;
  letter-spacing:0.02em;
  text-transform:uppercase;
  transition:all 0.2s;
}
.nav-link:hover{background:#FFF300;color:#000}
.nav-link.active{background:#000;color:#FFF300}
@media(max-width:640px){
  .hero-header{flex-direction:column;align-items:flex-start}
  .site-nav{flex-wrap:wrap}
}

/* BREADCRUMBS */
.breadcrumbs{font-family:"IBM Plex Mono",monospace;font-size:0.82rem;color:#666;margin-top:8px;margin-bottom:32px;padding:8px 0}
.breadcrumbs a{color:#000;text-decoration:none;font-weight:600;padding:4px 2px}
.breadcrumbs a:hover{
  color:#4643E8;
}
.breadcrumbs .sep{
  margin:0 8px;
  color:#999;
}

/* GLASS / CARD */
.glass{
  background:#FFF;
  border:3px solid #000;
  padding:32px;
  margin-bottom:16px;
  transition:all 0.2s;
}
.glass:hover{
  background:#FFF300;
}

/* SIDE-BY-SIDE */
.duo{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-bottom:16px;
}
@media(max-width:640px){.duo{grid-template-columns:1fr}}

.duo .glass .card-tag{
  font-size:0.7rem;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;
  margin-bottom:12px;display:inline-block;padding:4px 12px;border:2px solid #000;
  font-family:'Space Grotesk',sans-serif;
}
.duo .glass h4{
  font-size:1.2rem;font-weight:700;letter-spacing:-0.02em;margin-bottom:8px;color:#000;
  text-transform:uppercase;font-family:'Space Grotesk',sans-serif;
}

/* CARD TAGS */
.card-tag{
  font-size:0.7rem;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;
  display:inline-block;padding:4px 12px;border:2px solid #000;
  font-family:'Space Grotesk',sans-serif;
}
.tag-purple{background:#4643E8;color:#FFF;border-color:#000}
.tag-green{background:#000;color:#FFF300;border-color:#000}
.tag-pink{background:#000;color:#FFF;border-color:#000}
.tag-framework{background:#4643E8;color:#FFF;border-color:#000}
.tag-tool{background:#000;color:#FFF300;border-color:#000}
.tag-pillar{background:#4643E8;color:#FFF;border-color:#000}
.tag-examples{background:#000;color:#FFF300;border-color:#000}
.tag-guide{background:#000;color:#FFF;border-color:#000}
.tag-metrics{background:#4643E8;color:#FFF;border-color:#000}
.tag-wom{background:#000;color:#FFF;border-color:#000}
.tag-default{background:#000;color:#FFF;border-color:#000}

/* ARTICLE CARDS */
.article-card{
  display:block;
  background:#FFF;
  border:3px solid #000;
  padding:32px;
  text-decoration:none;
  color:#000;
  transition:all 0.2s;
}
.article-card:hover{
  background:#FFF300;
}

.article-card.featured{
  grid-column:1 / -1;
  background:#FFF300;
  border:3px solid #000;
}
.article-card.featured:hover{
  background:#000;
  color:#FFF300;
}
.article-card.featured:hover .card-title{color:#FFF300}
.article-card.featured:hover .card-desc{color:#FFF}
.article-card.featured:hover .card-meta{color:#FFF}

.article-card.coming-soon{
  opacity:0.55;
  border-color:#666;
  cursor:default;
}
.article-card.coming-soon:hover{
  background:#FFF;
}

.articles-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin:0 0 16px;
}
@media(max-width:640px){.articles-grid{grid-template-columns:1fr}}

/* CARD INTERNALS */
.card-header{
  display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap;
}

.card-title{
  font-size:1.2rem;font-weight:700;letter-spacing:-0.02em;margin-bottom:8px;color:#000;
  text-transform:uppercase;font-family:'Space Grotesk',sans-serif;
  line-height:1.2;
}
.article-card.featured .card-title{
  font-size:clamp(1.4rem,3vw,1.8rem);
}

.card-desc{
  font-size:0.88rem;color:#000;line-height:1.6;
  font-family:'IBM Plex Mono',monospace;
  margin-bottom:12px;
}

.card-meta{
  font-size:0.75rem;color:#000;font-weight:600;
  font-family:'Space Grotesk',sans-serif;
  text-transform:uppercase;
  letter-spacing:0.04em;
}

.card-status{
  font-size:0.65rem;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;
  display:inline-block;padding:4px 12px;
  font-family:'Space Grotesk',sans-serif;
}
.status-available{background:#FFF300;color:#000;border:2px solid #000}
.status-soon{background:#000;color:#FFF;border:2px solid #000}

/* SECTION LABEL */
.section-label{
  font-size:0.72rem;font-weight:700;text-transform:uppercase;
  letter-spacing:0.08em;color:#000;margin:48px 0 20px;
  font-family:'Space Grotesk',sans-serif;
  padding:8px 0;
  border-bottom:3px solid #000;
}

/* EXAMPLE ROWS */
.ex-row{
  display:flex;gap:16px;align-items:flex-start;
  padding:20px 0;
  border-bottom:2px solid #000;
}
.ex-row:last-child{border-bottom:none}
.ex-logo{
  width:44px;height:44px;border:2px solid #000;
  background:#FFF;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:0.72rem;color:#000;
  flex-shrink:0;letter-spacing:-0.02em;
}
.ex-body{flex:1;font-family:'IBM Plex Mono',monospace;color:#000}
.ex-body strong{color:#000;font-weight:700}
.ex-body .highlight{color:#4643E8;font-weight:700}

/* DATA TABLE */
.data-table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:0.88rem;
  font-variant-numeric:tabular-nums;
  font-family:'IBM Plex Mono',monospace;
}
.data-table th{
  text-align:left;font-weight:700;font-size:0.72rem;
  text-transform:uppercase;letter-spacing:0.06em;color:#000;
  padding:12px 16px;border-bottom:3px solid #000;
  background:#FFF;
  font-family:'Space Grotesk',sans-serif;
}
.data-table td{
  padding:14px 16px;border-bottom:2px solid #000;color:#000;
  font-family:'IBM Plex Mono',monospace;
}
.data-table td strong{color:#000}
.data-table .row-hl{background:#FFF300}
.data-table .row-hl td{color:#000}
.label-sub{display:block;font-size:0.75rem;color:#000;font-weight:400;margin-top:2px}

/* K-BADGE */
.k-badge{
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;font-size:0.75rem;
  min-width:48px;padding:6px 12px;
  border:2px solid #000;letter-spacing:-0.02em;
  font-family:'Space Grotesk',sans-serif;
}
.k-dim{background:#FFF;color:#000;border-color:#000}
.k-bright{background:#4643E8;color:#FFF;border-color:#000}
.k-hot{background:#FFF300;color:#000;border-color:#000}

/* CALLOUT */
.callout{background:#FFF300;border:3px solid #000;padding:28px 32px;margin:32px 0}
.callout p{margin-bottom:10px;color:#000}
.callout p:last-child{margin-bottom:0}

/* TOGGLE / ACCORDION */
.toggle{
  border-bottom:2px solid #000;
}
.toggle-head{
  display:flex;align-items:center;gap:16px;
  padding:24px 0;cursor:pointer;user-select:none;
}
.toggle-head:hover .toggle-title{
  background:#FFF300;
}
.toggle-num{
  font-size:0.82rem;font-weight:800;
  color:#FFF;background:#000;
  width:36px;height:36px;border:3px solid #000;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  transition:all 0.25s;
  font-family:'Space Grotesk',sans-serif;
}
.toggle.open .toggle-num{background:#FFF300;color:#000}
.toggle-title{font-weight:700;font-size:1.1rem;transition:all 0.2s;letter-spacing:-0.02em;
  font-family:'Space Grotesk',sans-serif;text-transform:uppercase}
.toggle-role{
  font-size:0.75rem;font-weight:600;color:#000;
  margin-left:auto;white-space:nowrap;
  background:#FFF;padding:4px 12px;border:2px solid #000;
  font-family:'Space Grotesk',sans-serif;text-transform:uppercase;
}
.toggle-arrow{
  font-size:0.7rem;font-weight:700;color:#000;
  border:3px solid #000;padding:6px 14px;
  font-family:'Space Grotesk',sans-serif;text-transform:uppercase;
  letter-spacing:0.02em;transition:all 0.25s;flex-shrink:0;
  background:#FFF;
}
.toggle-arrow .arrow-txt::after{content:'Expand'}
.toggle.open .toggle-arrow{background:#FFF300;color:#000}
.toggle.open .toggle-arrow .arrow-txt::after{content:'Collapse'}
.toggle-body{max-height:0;overflow:hidden;transition:max-height 0.35s ease}
.toggle.open .toggle-body{max-height:4000px}
.toggle-inner{padding:0 0 32px 52px}

/* QUESTION ITEMS */
.q{padding:18px 0;border-top:2px solid #000}
.q:first-child{border-top:none}
.q-text{font-weight:700;font-size:1rem;line-height:1.5;margin-bottom:4px;color:#000;
  font-family:'Space Grotesk',sans-serif;text-transform:uppercase}
.q-hint{font-size:0.85rem;color:#000;line-height:1.5;font-family:'IBM Plex Mono',monospace}

/* FEATURE CARD */
.feature-card{
  background:#4643E8;
  border:3px solid #000;
  padding:48px;
  margin:32px 0;
  color:#FFF;
}
.fq{display:flex;gap:16px;align-items:flex-start;margin-bottom:24px}
.fq-n{
  font-weight:700;font-size:1.6rem;
  color:#FFF300;
  flex-shrink:0;width:36px;
  line-height:1.3;
  font-family:'Space Grotesk',sans-serif;
}
.fq-t{color:#FFF;font-size:1.05rem;font-weight:600;line-height:1.5;
  font-family:'IBM Plex Mono',monospace}
.feature-rule{border:none;border-top:3px solid #FFF;margin:32px 0}
.feature-foot{font-size:0.92rem;color:#FFF;line-height:1.65;font-family:'IBM Plex Mono',monospace}
.feature-foot strong{color:#FFF300}

/* STATS */
.stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:32px 0;
}
@media(max-width:640px){.stats{grid-template-columns:1fr}}
.stat{
  background:#FFF300;border:3px solid #000;
  padding:28px;text-align:center;
  transition:all 0.2s;
  color:#000;
}
.stat:hover{
  transform:translateY(-4px);
  background:#FFF300;
}
.stat .stat-label{
  font-size:0.7rem;font-weight:700;text-transform:uppercase;
  letter-spacing:0.08em;color:#000;margin-bottom:8px;
  font-family:'Space Grotesk',sans-serif;
}
.stat .stat-text{font-size:0.95rem;color:#000;line-height:1.5;
  font-family:'IBM Plex Mono',monospace}

/* ICONS */
.ico{
  display:inline-flex;align-items:center;justify-content:center;
  width:20px;height:20px;flex-shrink:0;
}
.ico svg{width:100%;height:100%;stroke:currentColor}
.ico-lg{width:28px;height:28px}
.ico-xl{width:36px;height:36px}
.stat-ico{
  width:48px;height:48px;border:3px solid #000;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 16px;
  background:#FFF;
}
.stat-ico svg{width:26px;height:26px;stroke-width:3}

/* H3 with icon */
.h3-ico{display:flex;align-items:center;gap:10px}
.h3-ico .ico{opacity:1}

/* CTA ROW */
.cta-row{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:64px 0 0;
}
@media(max-width:640px){.cta-row{grid-template-columns:1fr}}

.cta-card{
  display:flex;align-items:center;justify-content:center;
  padding:32px;
  font-size:0.85rem;font-weight:700;
  border:3px solid #000;
  text-decoration:none;
  font-family:'Space Grotesk',sans-serif;
  text-transform:uppercase;
  letter-spacing:0.02em;
  transition:all 0.2s;
  text-align:center;
}
.cta-card-yellow{
  background:#FFF300;color:#000;
}
.cta-card-yellow:hover{
  background:#000;color:#FFF300;
}
.cta-card-black{
  background:#000;color:#FFF300;
}
.cta-card-black:hover{
  background:#FFF300;color:#000;
}

.cta-box{
  background:#FFF300;border:3px solid #000;padding:36px;margin-top:24px;
  text-align:center;
}
.cta-box h3{margin-top:0;color:#000}
.cta-box p{color:#000;margin-bottom:16px}

/* TAB BUTTONS (cross-links) */
.tab-btn{
  padding:12px 24px;
  font-size:0.75rem;
  font-weight:700;
  color:#000;
  background:#FFF;
  border:3px solid #000;
  cursor:pointer;
  transition:all 0.2s;
  font-family:'Space Grotesk',sans-serif;
  letter-spacing:-0.01em;
  text-transform:uppercase;
}
.tab-btn:hover{
  background:#000;
  color:#FFF300;
  border-color:#000;
}

/* GATEWAY CARDS */
.gateway{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  margin-top:56px;
  padding-bottom:0;
}
.gateway-card{
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  min-height:240px;
  padding:32px;
  background:#FFF;
  border:3px solid #000;
  text-decoration:none;
  color:#000;
  transition:all 0.2s;
  position:relative;
}
.gateway-card:hover{
  background:#FFF300;
}
.gateway-card:hover .card-arrow{
  transform:translateX(6px);
}
.card-icon{
  font-size:2rem;
  margin-bottom:16px;
  line-height:1;
}
.gateway-card .card-title{
  font-family:'Space Grotesk',sans-serif;
  font-size:1.4rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:-0.03em;
  line-height:1.1;
  margin-bottom:12px;
}
.gateway-card .card-desc{
  font-family:'IBM Plex Mono',monospace;
  font-size:0.82rem;
  line-height:1.6;
  color:#000;
  opacity:0.75;
  flex-grow:1;
}
.card-arrow{
  font-family:'Space Grotesk',sans-serif;
  font-size:1.6rem;
  font-weight:700;
  margin-top:20px;
  transition:transform 0.2s;
  align-self:flex-end;
}

/* BOTTOM LINK */
.bottom-link{
  text-align:center;
  padding:16px 0 40px;
}
.bottom-link a{
  font-family:'IBM Plex Mono',monospace;
  font-size:0.85rem;
  color:#000;
  opacity:0.5;
  text-decoration:none;
  border-bottom:1px solid rgba(0,0,0,0.2);
  transition:all 0.2s;
  letter-spacing:0.02em;
}
.bottom-link a:hover{
  opacity:1;
  border-bottom-color:#000;
}

/* FOOTER */
.site-footer{
  background:#000;padding:60px 28px;margin-top:80px;text-align:center;
}
.footer-inner{max-width:900px;margin:0 auto}
.footer-brand{
  font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1rem;
  color:#FFF300;text-transform:uppercase;letter-spacing:0.02em;margin-bottom:20px;
}
.footer-nav{display:flex;justify-content:center;gap:24px;margin-bottom:20px}
.footer-nav a{
  font-family:'Space Grotesk',sans-serif;font-size:0.72rem;font-weight:700;
  color:#FFF;text-decoration:none;text-transform:uppercase;letter-spacing:0.04em;
  transition:color 0.2s;
}
.footer-nav a:hover{color:#FFF300}
.footer-meta{
  font-family:'IBM Plex Mono',monospace;font-size:0.72rem;color:#666;
}
.footer-meta a{color:#999;text-decoration:none;transition:color 0.2s}
.footer-meta a:hover{color:#FFF300}

/* ANIMATIONS */
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.animate-in{animation:fadeUp 0.4s ease}

/* RESPONSIVE */
@media(max-width:768px){
  .gateway{
    grid-template-columns:1fr;
    gap:12px;
    margin-top:40px;
  }
  .gateway-card{
    min-height:180px;
    padding:24px;
  }
  .gateway-card .card-title{font-size:1.2rem}
  .bottom-link{padding:0 0 40px}
}
@media(max-width:640px){
  .hero{padding:60px 0 32px}
}
@media(max-width:480px){
  .hero .sub{font-size:1rem}
  .pw{padding:0 20px}
}

/* BOOK CARDS */
.book-layout{display:grid;grid-template-columns:120px 1fr;gap:24px;align-items:start}
.book-cover{width:120px;height:auto;border:2px solid #000;display:block}
@media(max-width:640px){
  .book-layout{grid-template-columns:80px 1fr;gap:16px}
  .book-cover{width:80px}
}
.book-header{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.book-rating{
  font-size:0.85rem;color:#FFF300;background:#000;
  padding:4px 12px;font-weight:700;letter-spacing:0.02em;
  font-family:'Space Grotesk',sans-serif;
}
.book-author{
  font-size:0.82rem;color:#666;font-family:'IBM Plex Mono',monospace;
  margin-top:4px;
}
.book-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px}
.book-tag{
  font-size:0.68rem;font-weight:700;text-transform:uppercase;
  letter-spacing:0.04em;padding:4px 12px;border:2px solid #000;
  font-family:'Space Grotesk',sans-serif;color:#000;
}
.book-link{
  display:inline-block;margin-top:16px;padding:10px 24px;
  background:#000;color:#FFF300;font-size:0.78rem;font-weight:700;
  text-transform:uppercase;letter-spacing:0.02em;
  font-family:'Space Grotesk',sans-serif;text-decoration:none;
  border:3px solid #000;transition:all 0.2s;
}
.book-link:hover{background:#4643E8;border-color:#4643E8;color:#FFF}

/* PRINT */
@media print{
  body{background:#fff;color:#111}
  .glass{border:1px solid #ddd;background:#f9f9f9}
  .article-card{border:1px solid #ddd;background:#f9f9f9}
  .toggle-body{max-height:none!important}
  .feature-card{border:1px solid #ddd;background:#f9f9f9}
  h1,h2,.fq-n{color:#111;background:none}
}