* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; width: 100%; height: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--gray-700);
  background: var(--bg);
  overflow: hidden;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
img { max-width: 100%; display: block; }
.hidden { display: none !important; }
.num, .money, .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}
.req { color: var(--error-700); }
.page-root {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}
.page-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px 0;
}
.page-toolbar h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-900);
}
.toolbar-spacer { flex: 1; }
.order-no {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--gray-100);
  color: var(--gray-600);
  font-size: 12px;
  font-family: var(--font-mono);
}
.content {
  padding: 20px 24px 24px;
  min-height: 0;
}
.field-label {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--gray-700);
}
.help-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: var(--gray-50);
  color: var(--gray-500);
  font-size: 12px;
  border: 1px solid var(--gray-200);
}
.kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  background: var(--white);
  color: var(--gray-600);
  font-family: var(--font-mono);
  font-size: 11px;
}
#toast {
  position: fixed;
  left: 50%; bottom: 24px;
  transform: translateX(-50%);
  background: var(--gray-900);
  color: var(--white);
  padding: 10px 16px;
  border-radius: 999px;
  box-shadow: var(--shadow-md);
  font-size: 12px;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
}
#toast[data-type="error"] {
  background: #B42318;
}
#toast[data-type="success"] {
  background: #027A48;
}
#toast.show { opacity: 1; }