:root{
  --bg: #FAFFFB;
  --panel: #F4F4F4;
  --text: #000000;
  --muted: #4A4A4A;   

  --accent: #1B4332;
}

*{ box-sizing: border-box; }
html, body{ margin: 0; padding: 0; }
body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a{ color: inherit; text-decoration: none; }
a:hover{ text-decoration: underline; }

.container{
  width: min(1100px, 92vw);
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.site-header{
  position: sticky;
  top: 0;
  background: #FAFFFB;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 4vw;
}

.brand{
  font-weight: 700;
  letter-spacing: 0.2px;
}

.nav a{
  margin-left: 1rem;
  color: var(--muted);
}
.nav a[aria-current="page"]{
  color: ffffff;
  text-decoration: underline;
  text-underline-offset: 6px;
}

.hero{
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 1.25rem;
  align-items: stretch;
}

h1{ font-size: clamp(2rem, 4vw, 3rem); margin: 0 0 0.5rem; }
h2{ margin: 0 0 0.5rem; font-size: 1.15rem; }
.lead{ color: var(--muted); font-size: 1.05rem; margin: 0 0 1rem; }
.accent{ color: var(--accent); }

.grid{
  margin-top: 1.25rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

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

.polaroid {              
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1rem 1rem 1.75rem;       
  max-width: 360px;
}


.small{ font-size: 0.9rem; }
.muted{ color: var(--muted); }

.tags{
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.tags li{
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.6rem;
  color: var(--muted);
}

.cta-row{
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.button{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  padding: 0.6rem 0.85rem;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

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

.button-ghost-hover{
  color: #fff;
}

label{
  display: grid;
  gap: 0.35rem;
  margin-top: 0.75rem;
  color: var(--muted);
}

input,
textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 0.65rem;
  background: #ffffff;         
  color: var(--text);           
  font-size: 0.95rem;
}

input::placeholder,
textarea::placeholder {
  color: var(--muted);         
}

textarea {
  height: 120px;
  margin-bottom: 1rem;  
}

.links {
  margin-top: 1rem;
  display: flex;
  gap: 0.75rem;
}

.links a {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.75rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  background: #fff;
  text-decoration: none;
}

.links a:hover {
  background: #456958; 
  color: #fff;
  border-color: var(--accent);
}

.avatar {
  width: 100%;
  max-width: 320px;
  padding: 1rem;
  border-radius: 16px;
  border: 1px solid var(--border);
}

.avatar img {
  width: 100%;
  height: auto;        
  border-radius: 8px;
  object-fit: contain; 
}

.viz-box{
  margin-top: 0.75rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
  min-height: 320px;
}

.site-footer{
  border-top: 1px solid var(--border);
  padding: 1rem 4vw;
}

/* --- */
.d3-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 1.5rem;
}

.d3-wrapper svg {
  border: 2px solid black;
  background: #f8f8f8;
  max-width: 100%;
  height: auto;
}

@media (max-width: 860px){
  .hero{ grid-template-columns: 1fr; }
  .grid{ grid-template-columns: 1fr; }
}