:root {
  --c-bg: #f6f6f4;
  --c-fg: #1a1a1a;
  --c-muted: #6b6b6b;
  --c-card: #ffffff;
  --c-accent: #1f3b5f;
  --c-accent-h: #16294a;
  --c-gold: #b8893d;          /* dezenter Gold-Akzent fuer Senden-Button */
  --c-gold-h: #9a702d;
  --c-border: #e2e2dc;
  --c-error: #b03030;
  --c-success: #2c6e3a;
  --r: 10px;
  --shadow: 0 1px 2px rgba(0,0,0,0.04), 0 8px 24px rgba(0,0,0,0.06);
}
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--c-bg);
  color: var(--c-fg);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter",
        Roboto, Helvetica, Arial, sans-serif;
}
.app {
  max-width: 720px;
  margin: 0 auto;
  padding: 20px 16px 60px;
  min-height: 100vh;
}
.hidden { display: none !important; }

.hdr {
  margin-bottom: 18px;
}
.brand {
  font-size: 14px;
  color: var(--c-muted);
  margin-bottom: 10px;
}
.progress {
  display: flex;
  gap: 6px;
  align-items: center;
}
.progress .dot {
  width: 28px;
  height: 4px;
  border-radius: 2px;
  background: var(--c-border);
  transition: background 0.18s;
}
.progress .dot.active { background: var(--c-accent); }

.card {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--r);
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 16px;
}
.card h1 {
  font-size: 26px;
  margin: 0 0 12px;
}
.card h2 {
  font-size: 20px;
  margin: 0 0 16px;
  line-height: 1.35;
}
.card p { margin: 0 0 12px; }
.note {
  color: var(--c-muted);
  font-size: 14px;
}
.step-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-muted);
  margin-bottom: 8px;
}
.question {
  font-weight: 600;
  font-size: 18px;
  line-height: 1.5;
}

textarea, input[type="text"], input[type="email"], input[type="tel"] {
  width: 100%;
  font: inherit;
  padding: 12px 14px;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  background: #fff;
  margin-top: 4px;
  resize: vertical;
}
textarea:focus, input:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(31,59,95,0.12);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 16px;
  margin-top: 8px;
}
.form-grid label {
  display: flex;
  flex-direction: column;
  font-size: 14px;
  color: var(--c-muted);
}
.form-grid label > input { color: var(--c-fg); font-size: 16px; }
.rs-block {
  grid-column: 1 / -1;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 10px 14px;
  margin-top: 6px;
}
.rs-block legend {
  padding: 0 4px;
  font-size: 14px;
  color: var(--c-muted);
}
.rs-block .radio {
  margin-right: 16px;
  font-size: 15px;
  color: var(--c-fg);
}
.rs-details {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 16px;
}
@media (max-width: 540px) {
  .form-grid, .rs-details { grid-template-columns: 1fr; }
}

.row-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 18px;
}
.btn-primary, .btn-secondary {
  font: inherit;
  padding: 11px 22px;
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.15s, border 0.15s;
}
.btn-primary {
  background: var(--c-accent);
  color: #fff;
}
.btn-primary:hover:not([disabled]) { background: var(--c-accent-h); }
.btn-primary[disabled] {
  background: #b3b9c2;
  cursor: not-allowed;
}
.btn-secondary {
  background: transparent;
  color: var(--c-fg);
  border-color: var(--c-border);
}
.btn-secondary:hover { border-color: var(--c-accent); }

.consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 12px 0 6px;
  font-size: 14px;
  color: var(--c-muted);
}
.consent input { margin-top: 4px; }
details.legal {
  margin: 10px 0;
  font-size: 14px;
}
details.legal summary {
  cursor: pointer;
  color: var(--c-accent);
}
details.legal p { color: var(--c-muted); margin-top: 8px; }

.hint {
  margin-top: 10px;
  font-size: 13px;
  color: var(--c-muted);
  min-height: 18px;
}

.summary-prose {
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--c-fg);
  background: #fbfaf6;
  border-left: 3px solid var(--c-gold);
  padding: 18px 22px;
  border-radius: 6px;
  white-space: pre-wrap;
  margin: 6px 0 18px;
}
.correction-block {
  margin-top: 14px;
}
.correction-block label {
  display: block;
  font-size: 14px;
  color: var(--c-muted);
  margin-bottom: 6px;
}
.btn-gold-accent {
  position: relative;
  box-shadow: inset 0 -3px 0 var(--c-gold), 0 1px 2px rgba(0,0,0,0.06);
}
.btn-gold-accent:hover:not([disabled]) {
  box-shadow: inset 0 -3px 0 var(--c-gold-h), 0 1px 2px rgba(0,0,0,0.06);
}

.loader {
  position: fixed;
  inset: 0;
  background: rgba(246,246,244,0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 999;
}
.spinner {
  width: 42px;
  height: 42px;
  border: 4px solid var(--c-border);
  border-top-color: var(--c-accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loader-text {
  margin-top: 16px;
  color: var(--c-muted);
  font-size: 14px;
}