/* ── DUD Icon System ── */
.dud-icon {
  display: inline-block;
  width: 1em;
  height: 1em;
  vertical-align: -0.125em;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}
.dud-icon-lg { width: 1.25em; height: 1.25em; }
.dud-icon-xl { width: 1.5em; height: 1.5em; }
.dud-icon-2x { width: 2em; height: 2em; }
.dud-icon-3x { width: 3em; height: 3em; }
.dud-icon-hero { width: 48px; height: 48px; }
.dud-icon-modal { width: 36px; height: 36px; vertical-align: middle; }
.dud-icon-inline { vertical-align: -0.15em; margin-right: 0.2em; }
.dud-icon-menu { width: 16px; height: 16px; vertical-align: -0.15em; margin-right: 6px; }
.dud-icon-tab { width: 16px; height: 16px; vertical-align: -0.15em; margin-right: 4px; }
.dud-icon-btn { width: 18px; height: 18px; vertical-align: -0.2em; }