#topbar .brand .dot{color:var(--accent)}
#topbar .controls{flex-shrink:1;min-width:0;flex-wrap:wrap;justify-content:flex-end}

/* ---- options row ---- */
.b64opts{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:0 2px 12px}
.b64opts .opt{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink);cursor:pointer;user-select:none}
.b64opts .opt input{accent-color:var(--accent);cursor:pointer}
.b64opts .sub{color:var(--faint);font-size:11.5px}

/* ---- status ---- */
.status{font-size:12.5px;font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace;flex:1;min-width:140px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.status.ok{color:#2f7d4f} :root[data-theme="dark"] .status.ok{color:#7fca89}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .status.ok{color:#7fca89}}
.status.warn{color:#9a5b00} :root[data-theme="dark"] .status.warn{color:#e8a33d}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .status.warn{color:#e8a33d}}
.status.err{color:var(--crash-ink,#c0392b);font-weight:600}

/* ---- two-pane layout ---- */
.b64layout{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start;width:100%}
.pane{display:flex;flex-direction:column;gap:7px;min-width:0}
.panebar{display:flex;align-items:center;gap:8px;min-height:24px;flex-wrap:wrap}
.panelbl{font-weight:600;font-size:13px;flex:1;min-width:0;color:var(--muted)}
.panelbl .sub{font-weight:500;color:var(--faint);font-size:11px;font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace}

.pane textarea{width:100%;box-sizing:border-box;height:calc(100dvh - var(--topbar-h,56px) - 150px);min-height:260px;resize:vertical;
  font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace;font-size:12.5px;line-height:1.55;tab-size:2;
  border:1px solid var(--line);border-radius:10px;background:var(--code-bg,var(--surface));color:var(--ink);
  padding:12px 13px;white-space:pre-wrap;word-break:break-all;overflow:auto}
.pane textarea:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:var(--accent)}

@media (max-width:820px){
  .b64layout{grid-template-columns:1fr}
  .pane textarea{height:34vh;min-height:170px}
}