/* Public styles for FTB Donation Form - BEM + CSS custom properties */

/* ── Design tokens ────────────────────────────────────────────────────────── */
.ftb-donation-form {
  /* Colors — brand */
  --color-primary: #c42e31;
  --color-secondary: #2270b6;

  /* Colors — success */
  --color-success: #1e8449;

  /* Colors — error */
  --color-error: #c42e31;

  /* Colors — focus */
  --color-focus: #251e18;

  /* Colors — link */
  --color-link: #c42e31;

  /* Colors — text */
  --color-text: #251e18;

  /* Colors — border */
  --color-border: #dce3e8;
  --color-border-hover: #b0bec5;

  /* Colors — surface */
  --color-surface: #ffffff;
  --color-bg: #f1f1f1;

  /* Typography */
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;

  /* Spacing (4px grid) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 1.75rem;
  --space-8: 2rem;

  /* Widths */
  --width-sm: 12.5rem;
  --width-md: 18.75rem;
  --width-lg: 25rem;
  --width-max: 30rem;

  /* Border radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;

  /* Transitions */
  --transition: 0.2s;

  /* Shadow */
  --shadow: 0 2px 0.75rem #00385a30;
}

  
    body {
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: var(--space-8);
      background: #f1f1f1;
      font-family: system-ui, -apple-system, sans-serif;
      padding: 2rem 1rem;
      box-sizing: border-box;
      margin: 0;
    }
  

.title {
  max-width: var(--width-max);
  margin: 0 auto var(--space-8);
  margin-bottom: 10rem;
  padding: 0 var(--space-4);
  text-align: center;
}

/* ── Block: Donation Form ─────────────────────────────────────────────────── */
.ftb-donation-form {
  max-width: var(--width-max);
  margin: 0 auto;
  padding: var(--space-8);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  font-family: inherit;
  font-weight: 400;
}

/* ── Title ────────────────────────────────────────────────────────────────── */
.ftb-donation-form__title {
  font-size: var(--font-size-xl);
  font-weight: bold;
  margin: 0 0 var(--space-6);
  color: var(--color-text);
  text-align: center;
}

/* ── Success message ──────────────────────────────────────────────────────── */
.ftb-donation-form__success {
  padding: var(--space-4);
  background: var(--color-surface);
  border: 2px solid var(--color-success);
  border-radius: var(--radius-sm);
  color: var(--color-success);
}

.ftb-donation-form__success p {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
  font-weight: 700;
  font-size: var(--font-size-base);
  color: var(--color-success);
}

.ftb-donation-form__success p::before {
  content: "✓" / "";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 1.125rem;
  height: 1.125rem;
  border-radius: 50%;
  background: var(--color-success);
  color: var(--color-surface);
  font-size: 0.625rem;
  font-weight: 700;
  line-height: 1;
}

/* ── Error summary ────────────────────────────────────────────────────────── */
.ftb-donation-form__error-summary {
  margin-bottom: var(--space-6);
  padding: var(--space-4);
  background: var(--color-surface);
  border: 2px solid var(--color-error);
  border-radius: var(--radius-sm);
  color: var(--color-error);
}

.ftb-donation-form__error-summary-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-2);
  font-weight: 700;
  font-size: var(--font-size-base);
  color: var(--color-error);
}

.ftb-donation-form__error-summary-title::before {
  content: "!" / "";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 1.125rem;
  height: 1.125rem;
  border-radius: 50%;
  background: var(--color-error);
  color: var(--color-surface);
  font-size: 0.625rem;
  font-weight: 700;
  line-height: 1;
}

.ftb-donation-form__error-list {
  margin: 0;
  padding-left: var(--space-5);
}

.ftb-donation-form__error-list li {
  margin-bottom: var(--space-1);
  font-size: var(--font-size-sm);
}

.ftb-donation-form__error-list a {
  color: var(--color-error);
  text-decoration: underline;
}

.ftb-donation-form__error-list a:hover,
.ftb-donation-form__error-list a:focus {
  text-decoration: none;
}

/* ── Focus styles ────────────────────────────────────────────────────────── */
.ftb-donation-form :focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ── Steps ────────────────────────────────────────────────────────────────── */
.ftb-donation-form__steps {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0 0 var(--space-6);
  padding: 0;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.ftb-donation-form__steps li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: bold;
  color: var(--color-text);
}

.ftb-donation-form__steps li::before {
  content: attr(data-step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  font-size: var(--font-size-sm);
  font-weight: bold;
  color: var(--color-text);
  background: var(--color-border);
}

.ftb-donation-form__steps li[aria-current="step"]::before {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-surface);
}

.ftb-donation-form__steps li.is-active::before {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-surface);
}

.ftb-donation-form__steps li h2 {
  font-size: inherit;
  font-weight: inherit;
  margin: 0;
  padding: 0;
}

.ftb-donation-form__step {
  display: none;
}

.ftb-donation-form__step.is-active {
  display: block;
}

/* ── Form ─────────────────────────────────────────────────────────────────── */
.ftb-donation-form__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* ── Fieldset ─────────────────────────────────────────────────────────────── */
.ftb-donation-form__fieldset {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin: 0 0 var(--space-6);
  padding: 0;
  border: none;
}

.ftb-donation-form__legend {
  font-size: var(--font-size-base);
  font-weight: bold;
  color: var(--color-text);
  margin-bottom: var(--space-2);
  padding: 0;
  display: block;
  width: 100%;
}

/* ── Radio group ──────────────────────────────────────────────────────────── */
.ftb-donation-form__radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.ftb-donation-form__fieldset--personal {
  margin-bottom: var(--space-2);
}

.ftb-donation-form__fieldset--personal .ftb-donation-form__legend {
  margin-bottom: var(--space-4);
  font-size: var(--font-size-lg);
}

.ftb-donation-form__fieldset--radio legend {
  margin-bottom: var(--space-3);
}

.ftb-donation-form__radio-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: var(--font-size-base);
  color: var(--color-text);
  transition:
    border-color var(--transition),
    background-color var(--transition);
  user-select: none;
}

.ftb-donation-form__radio-label:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
  color: var(--color-surface);
}

/* Hide native radio visually but keep it accessible */
.ftb-donation-form__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Selected state */
.ftb-donation-form__radio:checked + .ftb-donation-form__radio-label {
  border-color: var(--color-secondary);
  background-color: var(--color-secondary);
  font-weight: bold;
  color: var(--color-surface);
}

/* Focus indicator — WCAG 2.2 Focus Appearance */
.ftb-donation-form__radio:focus-visible + .ftb-donation-form__radio-label {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
  background: var(--color-focus);
  color: var(--color-surface);
  border-color: var(--color-focus);
  border-radius: var(--radius-sm);
}

/* ── Amount radio group ───────────────────────────────────────────────────── */
.ftb-donation-form__radio-group--amounts {
  align-items: center;
}

.ftb-donation-form__radio-label--amount {
  min-width: 4.5rem;
  justify-content: center;
  font-size: var(--font-size-base);
  font-weight: 500;
}

.ftb-donation-form__radio-label--custom {
  border-style: dashed;
}

/* ── Custom amount input ──────────────────────────────────────────────────── */
.ftb-donation-form__custom-amount {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: 0 var(--space-1);
  margin: var(--space-2) 0;
}

.ftb-donation-form__custom-amount--hidden {
  display: none;
}

.ftb-donation-form__input-wrapper {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--space-3);
}

.ftb-donation-form__currency-prefix {
  font-size: var(--font-size-base);
  font-weight: bold;
  color: var(--color-text);
}

.ftb-donation-form__input--amount {
  width: 6rem;
  padding: var(--space-2) var(--space-3);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-base);
}

.ftb-donation-form__input--amount:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
  border-color: var(--color-focus);
}

/* ── Field ────────────────────────────────────────────────────────────────── */
.ftb-donation-form__field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

/* Row layout for street+housenumber, postalcode+city */
.ftb-donation-form__field--row {
  flex-direction: row;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: 0;
}

.ftb-donation-form__field--street {
  flex: 1 1 60%;
}

.ftb-donation-form__field--house-number {
  flex: 1 1 35%;
}

.ftb-donation-form__field--postal-code {
  flex: 1 1 35%;
}

.ftb-donation-form__field--city {
  flex: 1 1 60%;
}

/* ── Label ────────────────────────────────────────────────────────────────── */
.ftb-donation-form__label {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
}

/* ── Input ────────────────────────────────────────────────────────────────── */
.ftb-donation-form__input {
  width: 100%;
  padding: var(--space-3);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: var(--color-surface);
  box-sizing: border-box;
  transition: border-color var(--transition);
}

.ftb-donation-form__fieldset--personal .ftb-donation-form__input--error {
  margin-bottom: var(--space-2);
}

.ftb-donation-form__input:hover {
  border-color: var(--color-border-hover);
}

.ftb-donation-form__input:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  border-color: var(--color-focus);
}

/* Error state: red border + icon, not color alone (WCAG 1.4.1) */
.ftb-donation-form__input--error {
  border-color: var(--color-error);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='%23c0392b'%3E%3Cpath d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm1 15h-2v-2h2v2zm0-4h-2V7h2v6z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-right: 2.5rem;
}

/* ── Inline field error ───────────────────────────────────────────────────── */
.ftb-donation-form__error {
  margin: var(--space-1) 0 0;
  font-size: var(--font-size-sm);
  color: var(--color-error);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.ftb-donation-form__error::before {
  content: "!" / "";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: var(--color-error);
  color: #fff;
  font-size: 0.625rem;
  font-weight: 700;
  line-height: 1;
}

/* ── Checkbox ─────────────────────────────────────────────────────────────── */
.ftb-donation-form__checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--font-size-base);
  color: var(--color-text);
  cursor: pointer;
  line-height: 1.5;
}

.ftb-donation-form__checkbox-label--error {
  color: var(--color-error);
}

.ftb-donation-form__checkbox {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.ftb-donation-form__checkbox:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.ftb-donation-form__privacy-link {
  color: var(--color-link);
  font-size: var(--font-size-base);
  text-decoration: underline !important;
  display: block;
  margin-bottom: var(--space-4);
}

.ftb-donation-form__checkbox-wrapper {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: var(--space-2);
}

.ftb-donation-form__privacy-link:hover,
.ftb-donation-form__privacy-link:focus {
  text-decoration: none !important;
}

.ftb-donation-form__privacy-link:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
  color: var(--color-focus);
}

/* ── Required indicator ───────────────────────────────────────────────────── */
.ftb-donation-form__required {
  color: var(--color-error);
  margin-left: 2px;
}

.ftb-donation-form__step-intro {
  margin: 0 0 var(--space-6);
  font-size: var(--font-size-base);
  color: var(--color-text);
}

.ftb-donation-form__step-intro:focus {
  outline: none;
}

.ftb-donation-form__required-note {
  margin: 0 0 var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.ftb-donation-form__field--buttons {
  display: flex;
  flex-direction: row;
  margin-top: var(--space-4);
  gap: var(--space-3);
  justify-content: center;
}

.ftb-donation-form__button {
  width: 100%;
  padding: var(--space-4) var(--space-7);
  background: var(--color-primary);
  color: var(--color-surface);
  border: none;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-lg);
  font-weight: bold;
  cursor: pointer;
  transition: background-color var(--transition);
}

.ftb-donation-form__button:hover {
  background: var(--color-secondary);
}

.ftb-donation-form__button:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
  background: var(--color-focus);
  color: var(--color-surface);
  border-color: var(--color-focus);
}

.ftb-donation-form__button:active {
  background: var(--color-secondary);
}

.ftb-donation-form__button--next {
  width: 100%;
}

.ftb-donation-form__button--previous {
  width: 33% !important;
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.ftb-donation-form__button--previous:hover {
  background: var(--color-primary);
  color: var(--color-surface);
}

.ftb-donation-form__button--submit {
  width: 66% !important;
}

/* ── Error Messages ──────────────────────────────────────────────────────── */
[hidden] {
  display: none !important;
}

/* ── Responsive (matches --width-max: 30rem) ──────────────────────────────── */
@media (max-width: 30rem) {
  .ftb-donation-form {
    padding: var(--space-5) var(--space-4);
  }

  .ftb-donation-form__steps {
    gap: var(--space-4);
  }
}