.svfm-form {
  --svfm-accent: #111;
  --svfm-accent-text: #fff;
  --svfm-choice-bg: transparent;
  --svfm-choice-border: rgba(0, 0, 0, 0.15);
  --svfm-choice-text: inherit;
  --svfm-choice-hover-bg: var(--svfm-choice-bg);
  --svfm-choice-hover-border: var(--svfm-accent);
  --svfm-choice-hover-text: var(--svfm-choice-text);
  --svfm-choice-selected-bg: rgba(0, 0, 0, 0.04);
  --svfm-choice-selected-border: var(--svfm-accent);
  --svfm-choice-selected-text: var(--svfm-choice-text);
  max-width: 640px;
  margin: 0 auto;
  font-size: 16px;
}
.svfm-title {
  margin: 0 0 1em;
}
.svfm-progress {
  height: 6px;
  background: rgba(0, 0, 0, 0.08);
  border-radius: 999px;
  overflow: hidden;
}
.svfm-progress-bar {
  height: 100%;
  background: var(--svfm-accent);
  transition: width 0.25s ease;
}
.svfm-step-info {
  font-size: 0.85em;
  opacity: 0.7;
  margin: 0.6em 0 1.2em;
}
.svfm-question-text {
  margin: 0 0 1em;
  line-height: 1.3;
}
.svfm-required {
  opacity: 0.6;
  margin-left: 0.2em;
}
.svfm-choices {
  display: grid;
  gap: 0.6em;
}
.svfm-choice {
  display: flex;
  align-items: center;
  gap: 0.7em;
  padding: 0.9em 1em;
  border: 1px solid var(--svfm-choice-border);
  border-radius: 10px;
  background: var(--svfm-choice-bg);
  color: var(--svfm-choice-text);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.svfm-choice input {
  accent-color: var(--svfm-accent);
}
.svfm-choice:hover {
  border-color: var(--svfm-choice-hover-border);
  background: var(--svfm-choice-hover-bg);
  color: var(--svfm-choice-hover-text);
}
.svfm-choice:has(input:checked) {
  border-color: var(--svfm-choice-selected-border);
  background: var(--svfm-choice-selected-bg);
  color: var(--svfm-choice-selected-text);
}
.svfm-email {
  width: 100%;
  padding: 0.9em 1em;
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 10px;
  font-size: 1em;
}
.svfm-error {
  color: #b3261e;
  margin: 1em 0 0;
  font-size: 0.9em;
}
.svfm-nav {
  display: flex;
  gap: 0.6em;
  margin-top: 1.6em;
}
.svfm-nav button {
  padding: 0.7em 1.4em;
  border-radius: 999px;
  border: 1px solid var(--svfm-accent);
  background: transparent;
  color: inherit;
  cursor: pointer;
  font: inherit;
}
.svfm-next,
.svfm-submit {
  background: var(--svfm-accent);
  color: var(--svfm-accent-text);
}
.svfm-nav button[disabled] {
  opacity: 0.6;
  cursor: default;
}
.svfm-success {
  padding: 1.4em;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.05);
  text-align: center;
}
.svfm-empty {
  padding: 1em;
  border: 1px dashed rgba(0, 0, 0, 0.3);
  border-radius: 8px;
}
.svfm-other {
  margin: 0.2em 0 0.6em;
  padding: 0 0 0 0.2em;
}
.svfm-other-label {
  display: block;
  font-size: 0.9em;
  margin-bottom: 0.35em;
  opacity: 0.85;
}
.svfm-other-input {
  width: 100%;
  padding: 0.8em 1em;
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 10px;
  font: inherit;
  font-size: 1em;
}