.gpio-header-modal { width: min(760px, 94vw); max-height: 90vh; overflow: auto; border: 1px solid #dbe2ea; border-radius: 12px; padding: 24px; color: #18212f; background: #fff; }
.gpio-header-modal::backdrop { background: rgb(15 23 42 / 45%); }
.gpio-header-picker { font-size: 14px; }
.gpio-header-row { margin: 12px 0; padding: 14px; border: 1px solid #dbe2ea; border-radius: 8px; min-width: 0; }
.gpio-header-row label { display: block; margin: 8px 0; font-weight: 600; }
.gpio-header-row input, .gpio-header-row select { display: block; box-sizing: border-box; width: 100%; margin-top: 5px; padding: 9px; border: 1px solid #98a2b3; border-radius: 6px; font: inherit; background: #fff; color: #18212f; }
.gpio-header-row input[type=number] { max-width: 150px; }
.gpio-header-note { font-size: 12px; color: #667085; }
.gpio-header-picker button, .gpio-header-actions button { padding: 8px 12px; margin: 4px; border: 1px solid #98a2b3; border-radius: 6px; background: #f9fafb; color: #18212f; cursor: pointer; font: inherit; }
.gpio-header-actions { display: flex; gap: 8px; justify-content: flex-end; flex-wrap: wrap; margin-top: 16px; }
.gpio-header-actions button[type=submit] { background: #2563eb; color: white; border-color: #2563eb; }
.gpio-header-actions button:disabled { opacity: .5; cursor: default; }
.gpio-header-total { font-weight: 600; color: #b42318; }
.gpio-header-total[data-valid=true] { color: #15803d; }