.wwsim {
  background: var(--surface);
  margin: 1.5rem 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  gap: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-sizing: border-box;
}

.wwsim *, .wwsim *::before, .wwsim *::after {
  box-sizing: border-box; margin: 0; padding: 0;
}

/* Header */
.wwsim .w-header {
  width: 100%;
  /*max-width: 960px;*/
  display: flex; align-items: baseline;
  gap: 16px; border-bottom: 1px solid var(--border); padding-bottom: 14px;
}
.wwsim .w-header h1 {
  font-family: 'IBM Plex Mono', monospace; font-size: 18px; font-weight: 600; color: var(--text);
}
.wwsim .w-header span {
  font-family: 'IBM Plex Mono', monospace; font-size: 11px; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 0.5px;
}

/* Pane */
.wwsim .w-pane {
  width: 100%; max-width: 960px; display: flex; flex-direction: column; gap: 10px;
}
.wwsim .w-pane-label {
  font-family: 'IBM Plex Mono', monospace; font-size: 10px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.8px; color: var(--text-dim);
  padding-bottom: 6px; border-bottom: 1px solid var(--border);
}
.wwsim .w-chart-wrap {
  width: 100%; background: var(--surface2);
  border: 1px solid var(--border); border-radius: 4px; padding: 16px 20px;
}
.wwsim canvas { display: block; width: 100% !important; }

/* Legend */
.wwsim .w-legend {
  display: flex; gap: 22px; flex-wrap: wrap;
  font-family: 'IBM Plex Mono', monospace; font-size: 11px; color: var(--text-dim); align-items: center;
}
.wwsim .w-legend-item { display: flex; align-items: center; gap: 7px; }

/* Params */
.wwsim .w-params {
  width: 100%;
  display: flex; gap: 22px; flex-wrap: wrap;
  /*background: var(--surface2);*/
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px 18px; font-family: 'IBM Plex Mono', monospace; font-size: 11px; color: var(--text-dim);
}
.wwsim .w-param { display: flex; align-items: center; gap: 9px; }
.wwsim .w-param label { text-transform: uppercase; letter-spacing: 0.4px; white-space: nowrap; }
.wwsim .w-param .pval { color: var(--text); min-width: 40px; }

/* Interventions */
.wwsim .w-interventions {
  width: 100%; max-width: 960px; display: flex; flex-direction: column; gap: 10px;
}

/* Divider */
.wwsim .w-divider { width: 100%; max-width: 960px; border: none; border-top: 1px dashed var(--border); }

/* Controls in general */
.wwsim .w-controls {
  display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-start;
}
.wwsim .w-btn-group .pval {
  font-family: 'IBM Plex Mono', monospace; font-size: 10px;
  color: var(--text-dim);
}
.wwsim input[type=range] { accent-color: var(--accent); width: 100px; }
.wwsim .w-btn-group { display: flex; flex-direction: column; gap: 4px; }
.wwsim .w-btn-group label {
  font-family: 'IBM Plex Mono', monospace; font-size: 10px;
  text-transform: uppercase; letter-spacing: 0.6px; color: var(--text-dim);
}
.wwsim button {
  font-family: 'IBM Plex Mono', monospace; font-size: 12px; font-weight: 600;
  padding: 8px 16px; border: 1px solid; border-radius: 2px; cursor: pointer;
  background: transparent; transition: background 0.12s;
  user-select: none; -webkit-user-select: none;
  color: var(--accent); border-color: var(--accent);
}
.wwsim button:hover {
  background: var(--accent-bg);
  filter: brightness(95%);
}
.wwsim button:disabled {
  opacity: 0.3;
  cursor: default;
  pointer-events: none;
}
/*.wwsim button.js-reset:hover {*/
/*  background: var(--accent-bg);*/
/*}*/