:root{
  --bg:#0f1724;
  --card:#0b1220;
  --accent1:#6ee7b7;
  --accent2:#60a5fa;
  --muted:#94a3b8;
  --glass: rgba(255,255,255,0.04);
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family:Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background: linear-gradient(180deg,var(--bg) 0%, #071026 100%);
  color: #e6eef8;
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
}

.container{
  width:100%;
  max-width:1100px;
  background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
  border-radius:14px;
  padding:20px;
  box-shadow: 0 10px 30px rgba(2,6,23,0.7);
  display:grid;
  gap:18px;
  grid-template-columns: 420px 1fr;
  align-items:start;
}

.header h1{margin:0;font-size:1.6rem}
.tagline{margin:4px 0 12px;color:var(--muted);font-size:0.95rem}

.controls{
  background:var(--card);
  padding:16px;
  border-radius:12px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.02);
}

.input-row{display:flex;gap:8px;align-items:center}
.input-row input{
  flex:1;padding:12px;border-radius:8px;border:1px solid rgba(255,255,255,0.04);
  background:var(--glass);color:inherit;outline:none;font-size:1rem;
}
.input-row button{
  padding:10px 12px;border-radius:8px;border:none;background:linear-gradient(90deg,var(--accent1),var(--accent2));
  color:#032; cursor:pointer;font-weight:600;
}

.meta{margin-top:12px;display:flex;flex-direction:column;gap:8px}
.strength-bar{
  height:10px;background:rgba(255,255,255,0.06);border-radius:8px;overflow:hidden;
}
.strength-bar::after{
  content:"";display:block;height:100%;width:0%;
  background:linear-gradient(90deg,var(--accent1),var(--accent2));transition:width 300ms ease;
}
.strength-text{margin-top:6px;font-weight:600}

.entropy,.cracktime{color:var(--muted);font-size:0.9rem}

.suggestions{
  margin-top:12px;color:var(--muted);background:rgba(255,255,255,0.02);padding:10px;border-radius:8px;font-size:0.95rem;
  min-height:48px;
}

.visual{
  background: transparent;
  height:420px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  position:relative;
}

/* p5 canvas container will fill this area */
#p5-container{
  width:100%;
  height:100%;
  border-radius:10px;
  overflow:hidden;
  background: linear-gradient(180deg, rgba(2,6,23,0.4), rgba(3,8,27,0.6));
}

/* footer */
.footer{
  grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:0.85rem;margin-top:6px;
}

@media (max-width:960px){
  .container{grid-template-columns:1fr; padding:12px}
  .visual{height:300px}
}