:root{
  --bg:#ffffff;
  --fg:#111111;
  --muted:#666666;
  --line:#e9e9e9;
  --card:#f7f7f7;
  --max: 980px;
  --radius: 14px;
}

*{box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
  background:var(--bg);
  color:var(--fg);
  line-height:1.55;
}

.container{
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px 18px 60px;
}

/* Header */
.site-header{
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:18px 18px;
}

.brand{
  display:flex;
  align-items:center;
  gap:14px;
  text-decoration:none;
  color:var(--fg);
  min-width:0;
  flex-shrink:0;
}

.brand-text-only{
  gap:0;
}

.brand-copy{
  display:flex;
  flex-direction:column;
  gap:2px;
  min-width:0;
}

.brand-title{
  font-size: clamp(22px, 3vw, 30px);
  line-height:1.05;
  font-weight:700;
  letter-spacing:-0.4px;
}

.brand-subtitle{
  color:var(--muted);
  font-size:14px;
  line-height:1.3;
}

.nav{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  align-items:center;
  justify-content:flex-end;
  margin-left:auto;
}

.nav a{
  text-decoration:none;
  color:var(--muted);
  font-size:14px;
  padding:8px 12px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#fff;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.nav a:hover{
  color:var(--fg);
  border-color:#d8d8d8;
  background:#fafafa;
}

.ig-nav{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:40px;
}

.ig-nav .ig-icon{
  width:16px;
  height:16px;
}

/* Hero */
.hero{
  padding: 44px 0 20px;
  border-bottom: 1px solid var(--line);
}

.kicker{
  color:var(--muted);
  font-size:14px;
  margin:0 0 10px;
}

h1{
  font-size: clamp(32px, 4vw, 48px);
  line-height:1.08;
  margin: 0 0 14px;
  letter-spacing:-0.5px;
}

.lead{
  font-size: 18px;
  color: #222;
  margin: 0 0 18px;
}

.cta{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin: 10px 0 8px;
}

.button{
  display:inline-block;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--fg);
  text-decoration:none;
  color:var(--bg);
  background:var(--fg);
  font-weight:600;
  font-size:14px;
}

.button.ghost{
  background:transparent;
  color:var(--fg);
}

.note{
  color:var(--muted);
  font-size:13px;
  margin: 14px 0 0;
}

/* Sections */
.section{
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}

h2{
  margin:0 0 10px;
  font-size: 24px;
  letter-spacing:-0.2px;
}

.section-lead{
  margin:0 0 16px;
  color:var(--muted);
  font-size:12px;
}

.cards{
  list-style: none;
  padding:0;
  margin: 18px 0;
  display:grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.card{
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 14px;
}

.card h3{
  margin:0 0 6px;
  font-size:16px;
}

.card p{
  margin:0;
  color:#222;
}

.split{
  display:grid;
  grid-template-columns: 1fr;
  gap:12px;
  margin-top: 18px;
}

.panel{
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
}

.list{
  margin:10px 0 0;
  padding-left: 18px;
}

.list li{
  margin: 6px 0;
}

.grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.tag{
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}

.empty{
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: #fff;
}

/* Footer */
.footer{
  padding-top: 32px;
  color: var(--muted);
  font-size: 13px;
  text-align:center;
}

.footer-signature{
  display:flex;
  justify-content:center;
  margin: 0 0 18px;
}

.footer-signature-logo{
  width: 88px;
  height: auto;
  display:block;
  opacity: .92;
}

.footer a{
  color: inherit;
}

.footer a:hover{
  color: var(--fg);
}

/* Utility */
.mono{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

/* Instagram icon */
.ig-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
}

.ig-icon{
  fill: currentColor;
}

/* Responsive */
@media (min-width: 860px){
  .cards{grid-template-columns: 1fr 1fr;}
  .grid{grid-template-columns: 1fr 1fr;}
  .split{grid-template-columns: 1fr 1fr;}
}

@media (max-width: 900px){
  .topbar{
    flex-direction: column;
    align-items: flex-start;
  }

  .nav{
    justify-content:flex-start;
    margin-left:0;
  }
}

@media (max-width: 620px){
  .brand{
    align-items:flex-start;
  }

  .brand-title{
    font-size:24px;
  }

  .brand-subtitle{
    font-size:13px;
  }

  .nav a{
    font-size:12px;
    padding:7px 10px;
  }
}

/* Article layout */
.back-link{
  color:inherit;
  text-decoration:none;
}

.back-link:hover{
  text-decoration:underline;
}

.article-title{
  margin-top:6px;
}

.article-intro{
  font-size:15px;
  line-height:1.65;
}

.article-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px 18px;
}

.prose-flow > * + *{
  margin-top:14px;
}

.article h2{
  margin-top:28px;
}

.article h2:first-child{
  margin-top:0;
}

.article p,
.article li{
  color:#222;
}

.article ul,
.article ol{
  padding-left:20px;
}

.article-related,
.article-disclaimer{
  margin-top:18px;
}

.article-related-kicker{
  margin-bottom:6px;
}