/**
 * Registrierungsformular — eigenständige Styles (BEM: register-form)
 */

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

#kapital-anmeldung {
  scroll-margin-top: 5.5rem;
}

@media (min-width: 64em) {
  #kapital-anmeldung {
    scroll-margin-top: 11rem;
  }
}

:root {
  --register-form-accent: #b33a1b;
  --register-form-accent-hover: #9c3218;
  --register-form-border: #cbd5e1;
  --register-form-muted: #64748b;
  --register-form-bg-notice: #f1f3f5;
  --register-form-error: #c62828;
}

.register-form-section {
  box-sizing: border-box;
  max-width: 100%;
  margin: 0 auto 24px;
  padding: 0 16px;
}

@media (min-width: 37.5em) {
  .register-form-section {
    max-width: 844px;
    margin-bottom: 32px;
    padding: 0 72px;
  }
}

@media (min-width: 64em) {
  .register-form-section {
    max-width: none;
    margin-bottom: 40px;
    padding: 0 162px;
  }
}

.register-form-section__inner {
  box-sizing: border-box;
  max-width: 560px;
  margin: 0 auto;
}

.register-form {
  box-sizing: border-box;
  border-radius: 0;
  background: #fff;
  box-shadow: 0 4px 28px rgba(0, 0, 0, 0.09);
  overflow: hidden;
}

.register-form__header {
  margin: 0;
  padding: 14px 18px;
  font-family: var(--body-font, system-ui, sans-serif);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  background: var(--register-form-accent);
  border-radius: 0;
}

.register-form__notice {
  box-sizing: border-box;
  padding: 14px 16px 14px 18px;
  background: var(--register-form-bg-notice);
  border-left: 4px solid var(--register-form-accent);
}

.register-form__notice-text {
  margin: 0;
  font-family: var(--body-font, system-ui, sans-serif);
  font-size: 14px;
  line-height: 1.5;
  color: #374151;
}

.register-form__body {
  box-sizing: border-box;
  padding: 20px 18px 24px;
}

.register-form__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

@media (min-width: 30em) {
  .register-form__row {
    grid-template-columns: 1fr 1fr;
  }
}

.register-form__field {
  position: relative;
  box-sizing: border-box;
}

.register-form__field--full {
  margin-bottom: 16px;
}

.register-form__input {
  box-sizing: border-box;
  width: 100%;
  margin: 0;
  padding: 18px 12px 10px 12px;
  font-family: var(--body-font, system-ui, sans-serif);
  font-size: 16px;
  line-height: 1.35;
  color: #111827;
  background: #fff;
  border: 1px solid var(--register-form-border);
  border-radius: 0;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}

.register-form__input::placeholder {
  color: transparent;
}

.register-form__input:hover:not(:focus) {
  border-color: #94a3b8;
}

.register-form__input:focus {
  outline: none;
  border-color: var(--register-form-accent);
  box-shadow:
    0 0 0 1px #fff,
    0 0 0 3px rgba(179, 58, 27, 0.35);
}

.register-form__input:not(:placeholder-shown):invalid {
  border-color: var(--register-form-error);
}

.register-form__input:not(:placeholder-shown):invalid:focus {
  border-color: var(--register-form-error);
  box-shadow:
    0 0 0 1px #fff,
    0 0 0 3px rgba(198, 40, 40, 0.35);
}

.register-form__label {
  position: absolute;
  left: 13px;
  top: 50%;
  font-family: var(--body-font, system-ui, sans-serif);
  font-size: 16px;
  line-height: 1;
  font-weight: 500;
  color: var(--register-form-muted);
  pointer-events: none;
  transform: translateY(-50%);
  transform-origin: left center;
  transition:
    top 0.2s ease,
    transform 0.2s ease,
    font-size 0.2s ease,
    color 0.2s ease,
    font-weight 0.2s ease;
  background: #fff;
  padding: 0 4px;
}

.register-form__input:focus + .register-form__label,
.register-form__input:not(:placeholder-shown) + .register-form__label {
  top: 8px;
  transform: translateY(0);
  font-size: 12px;
  font-weight: 700;
  color: var(--register-form-accent);
}

.register-form__input:-webkit-autofill,
.register-form__input:-webkit-autofill:hover,
.register-form__input:-webkit-autofill:focus {
  -webkit-box-shadow: 0 0 0 1000px #fff inset;
  transition: background-color 99999s ease-out;
}

.register-form__input:-webkit-autofill + .register-form__label {
  top: 8px;
  transform: translateY(0);
  font-size: 12px;
  font-weight: 700;
  color: var(--register-form-accent);
}

.register-form__submit {
  box-sizing: border-box;
  width: 100%;
  margin-top: 8px;
  padding: 16px 20px;
  font-family: var(--body-font, system-ui, sans-serif);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #fff;
  background: var(--register-form-accent);
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition:
    filter 0.2s ease,
    background 0.2s ease;
  animation: register-form-submit-pulse 2.6s ease-in-out infinite;
}

.register-form__submit:hover {
  filter: brightness(1.06);
  animation-play-state: paused;
}

.register-form__submit:active {
  filter: brightness(0.96);
}

.register-form__submit:focus-visible {
  outline: 3px solid #212529;
  outline-offset: 3px;
  animation-play-state: paused;
}

@keyframes register-form-submit-pulse {
  0%,
  100% {
    box-shadow:
      0 0 0 0 rgba(179, 58, 27, 0.42),
      0 2px 12px rgba(179, 58, 27, 0.22);
  }

  50% {
    box-shadow:
      0 0 0 10px rgba(179, 58, 27, 0.06),
      0 4px 18px rgba(179, 58, 27, 0.28);
  }
}

@media (prefers-reduced-motion: reduce) {
  .register-form__submit {
    animation: none;
    box-shadow: 0 2px 12px rgba(179, 58, 27, 0.22);
  }

  .register-form__label {
    transition-duration: 0.01ms;
  }
}