/* =========================================================
   Email Signature Generator — tool-specific styles.
   Layered on /tools/_shared/tool.css.
   ========================================================= */

.sig-form { margin-bottom: var(--space-5); }

.sig-fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}
@media (min-width: 520px) {
  .sig-fields { grid-template-columns: 1fr 1fr; }
}
.sig-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
}
.sig-field-full { grid-column: 1 / -1; }
.sig-field > span {
  font-weight: 500;
  color: var(--text-secondary);
}
.sig-field-optional {
  font-weight: 400;
  color: var(--text-subtle);
  font-size: 12px;
}
.sig-field input {
  width: 100%;
  padding: var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 14px;
  transition: var(--transition-colors);
}
.sig-field input::placeholder { color: var(--text-subtle); }
.sig-field input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-ring);
}

/* ---------- Style row ---------- */
.sig-style {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}
@media (min-width: 520px) {
  .sig-style { grid-template-columns: 1fr auto; align-items: end; }
}

.sig-layouts {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.sig-layout {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-colors);
  flex: 1 1 auto;
  justify-content: center;
}
.sig-layout:hover { border-color: var(--border-strong); }
.sig-layout:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft-bg);
  color: var(--accent-soft-fg);
}
.sig-layout input[type="radio"] {
  width: 14px;
  height: 14px;
  accent-color: var(--accent);
  cursor: pointer;
}

.sig-color {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
}
.sig-color > span {
  font-weight: 500;
  color: var(--text-secondary);
}
.sig-color input[type="color"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100px;
  height: 38px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  cursor: pointer;
}
.sig-color input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.sig-color input[type="color"]::-webkit-color-swatch { border: none; border-radius: 4px; }
.sig-color input[type="color"]::-moz-color-swatch { border: none; border-radius: 4px; }

/* ---------- Preview ---------- */
.sig-preview-wrap { margin-bottom: var(--space-5); }
.sig-preview-frame {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-6);
  min-height: 140px;
  /* The preview always shows on a white card to simulate the email-client surface,
     regardless of the tool's dark/light theme. */
  color: #18181B;
  transition: var(--transition-colors);
}
.sig-preview {
  min-height: 80px;
}
.sig-preview-empty {
  color: #A1A1AA;
  font-size: 14px;
  font-style: normal;
}