/* Ring Builder Premium CSS */
#ring-builder { font-family: 'Helvetica Neue', sans-serif; margin:20px auto; max-width:1000px; }
.rb-steps { display:flex; justify-content:space-between; margin-bottom:20px; }
.rb-step { flex:1; padding:15px; background:#f1f1f1; text-align:center; font-weight:bold; border-radius:6px; margin:0 5px; }
.rb-step.active { background:#007c59; color:#fff; }
.rb-panel { background:#fff; padding:20px; border-radius:8px; box-shadow:0 2px 8px rgba(0,0,0,.08); }
.rb-filters { display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:10px; margin-bottom:15px; }
.diamond-card { padding:15px; border:1px solid #ddd; border-radius:6px; margin:10px 0; box-shadow:0 1px 3px rgba(0,0,0,.05); }
.diamond-card button { background:#007c59; color:#fff; padding:8px 15px; border:none; border-radius:4px; cursor:pointer; }
.rb-total { font-size:1.2em; font-weight:bold; margin:15px 0; }
button.rb-next, button.rb-prev { margin-top:15px; padding:10px 20px; border:none; background:#007c59; color:#fff; border-radius:5px; cursor:pointer; }