/* ══════ REGISTER — Öffentliche Seiten ══════ */
:root {
  --c-primary: #2563EB;
  --c-primary-dark: #1d4ed8;
  --c-bg: #F8FAFC;
  --c-card: #ffffff;
  --c-text: #0F172A;
  --c-text-secondary: #475569;
  --c-text-muted: #94a3b8;
  --c-border: #e2e8f0;
  --c-error: #DC2626;
  --c-error-bg: #fef2f2;
  --c-success: #059669;
  --c-success-bg: #ecfdf5;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font);
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Layout */
.register-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.register-header {
  padding: 20px 24px;
  text-align: center;
}

.register-logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--c-text);
  text-decoration: none;
}

.register-logo span { color: var(--c-primary); }

.register-main {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: 0 16px 40px;
}

.register-footer {
  text-align: center;
  padding: 24px;
  color: var(--c-text-muted);
  font-size: 13px;
}

/* Card */
.register-card {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: 40px;
  width: 100%;
  max-width: 640px;
}

.register-card h1 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 4px;
}

.register-subtitle {
  color: var(--c-text-secondary);
  margin-bottom: 32px;
  font-size: 15px;
}

.register-card h2 {
  font-size: 16px;
  font-weight: 600;
  margin: 28px 0 16px;
  padding-top: 20px;
  border-top: 1px solid var(--c-border);
}

.register-card h2:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

/* Form */
.form-group {
  margin-bottom: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--c-text);
}

.req { color: var(--c-error); }

.form-input, .form-select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm);
  font-size: 15px;
  font-family: var(--font);
  background: var(--c-card);
  color: var(--c-text);
  transition: border-color 0.2s;
  min-height: 44px;
}

.form-input:focus, .form-select:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-input.error, .form-select.error {
  border-color: var(--c-error);
}

.form-error {
  color: var(--c-error);
  font-size: 13px;
  margin-top: 4px;
}

.form-hint {
  color: var(--c-text-muted);
  font-size: 13px;
  margin-top: 4px;
}

/* Alert */
.alert {
  padding: 12px 16px;
  border-radius: var(--r-sm);
  margin-bottom: 20px;
  font-size: 14px;
}

.alert-error {
  background: var(--c-error-bg);
  color: var(--c-error);
  border: 1px solid #fecaca;
}

/* Tier Cards */
.tier-cards {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  margin-bottom: 8px;
}

.tier-card {
  border: 2px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 20px 16px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.tier-card:hover {
  border-color: var(--c-primary);
}

.tier-card.selected,
.tier-card:has(input:checked) {
  border-color: var(--c-primary);
  background: rgba(37, 99, 235, 0.04);
}

.tier-card input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.tier-name {
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 4px;
}

.tier-price {
  font-size: 20px;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: 4px;
}

.tier-info {
  font-size: 13px;
  color: var(--c-text-muted);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: var(--r-sm);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  border: none;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: all 0.2s;
  min-height: 44px;
}

.btn-primary {
  background: var(--c-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--c-primary-dark);
}

.btn-lg {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  margin-top: 24px;
}

.register-hint {
  text-align: center;
  color: var(--c-text-muted);
  font-size: 13px;
  margin-top: 12px;
}

/* Success Page */
.register-success {
  text-align: center;
  padding: 60px 40px;
}

.success-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--c-success-bg);
  color: var(--c-success);
  font-size: 28px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.register-success h1 {
  margin-bottom: 8px;
}

.register-success p {
  color: var(--c-text-secondary);
  margin-bottom: 24px;
}

.success-steps {
  text-align: left;
  background: var(--c-bg);
  border-radius: var(--r-md);
  padding: 24px;
  margin-bottom: 24px;
}

.success-steps h2 {
  border: none;
  margin: 0 0 12px;
  padding: 0;
  font-size: 15px;
}

.success-steps ol {
  padding-left: 20px;
}

.success-steps li {
  padding: 4px 0;
  font-size: 14px;
  color: var(--c-text-secondary);
}

/* Checkbox (AGB) */
.form-check { margin-top: 20px; }
.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--c-text-secondary);
  cursor: pointer;
  line-height: 1.5;
}
.checkbox-label input[type="checkbox"] {
  margin-top: 3px;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--c-primary);
}
.checkbox-label a {
  color: var(--c-primary);
  text-decoration: none;
}
.checkbox-label a:hover { text-decoration: underline; }

/* Footer Legal Links */
.footer-legal {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 8px;
}
.footer-legal a {
  color: var(--c-text-muted);
  text-decoration: none;
  font-size: 13px;
}
.footer-legal a:hover { color: var(--c-primary); }

/* Focus */
*:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 2px;
}

/* Responsive */
@media (max-width: 600px) {
  .register-card { padding: 24px 20px; }
  .form-row { grid-template-columns: 1fr; }
  .tier-cards { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}