/* =====================================================
   Wizard Styles
   ===================================================== */

/* Wizard Layout */
.wizard {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding-bottom: 96px; /* Platz für fixierte Buttons */
}

@media (min-width: 768px) {
  .wizard {
    padding-bottom: 0;
  }
}

.wizard__header {
  padding-top: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  text-align: center;
}

.wizard__title {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: var(--spacing-sm);
}

.wizard__subtitle {
  font-size: 15px;
  color: var(--color-body);
  margin-bottom: var(--spacing-xl);
}

/* Progress Bar */
.progress-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0;
  padding: 0 var(--spacing-sm);
}

.progress-bar__step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  flex: 1;
  position: relative;
}

.progress-bar__dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  background-color: var(--color-bg);
  border: 2px solid var(--color-border);
  color: var(--color-body);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  z-index: 2;
}

.progress-bar__step--active .progress-bar__dot {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

.progress-bar__step--completed .progress-bar__dot {
  background-color: var(--color-success);
  border-color: var(--color-success);
  color: #ffffff;
}

.progress-bar__label {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-body);
  text-align: center;
  display: block;
  max-width: 56px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (min-width: 768px) {
  .progress-bar__label {
    max-width: none;
    font-size: 13px;
  }
}

.progress-bar__step--active .progress-bar__label {
  color: var(--color-primary);
  font-weight: 600;
}

.progress-bar__line {
  position: absolute;
  top: 15px;
  left: 50%;
  right: -50%;
  height: 2px;
  background-color: var(--color-border);
  z-index: 1;
}

.progress-bar__step:last-child .progress-bar__line {
  display: none;
}

.progress-bar__step--completed .progress-bar__line {
  background-color: var(--color-success);
}

/* Step Container */
.steps-wrapper {
  flex: 1;
  overflow: hidden;
  padding-top: var(--spacing-lg);
}

.step {
  display: none;
  animation: fadeIn 300ms ease forwards;
}

.step[hidden] {
  display: none !important;
}

.step--active {
  display: block;
}

.step:not(.step--active) .preview-container,
.preview-placeholder[hidden],
.preview-frame[hidden] {
  display: none !important;
}

.validation-alert {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  color: #9f2d27;
  background-color: #fffafa;
  border: 1px solid rgba(226, 89, 80, 0.35);
  border-radius: var(--radius-md);
}

.validation-alert[hidden] {
  display: none;
}

.validation-alert__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
  color: #ffffff;
  background-color: var(--color-error);
  border-radius: 50%;
  font-weight: 700;
  line-height: 1;
}

.validation-alert__title {
  display: block;
  color: #8a231f;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.validation-alert__message {
  color: #9f2d27;
  font-size: 14px;
  margin-bottom: 0;
}

.step__heading {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: var(--spacing-sm);
}

.step__description {
  font-size: 14px;
  color: var(--color-body);
  margin-bottom: var(--spacing-xl);
}

/* Radio Cards Grid */
.radio-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

@media (min-width: 768px) {
  .radio-cards {
    grid-template-columns: 1fr 1fr;
  }
}

/* Form max-width */
.form-section {
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Service Rows */
.service-rows {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.service-row {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  position: relative;
}

.service-row__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
}

.service-row__number {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-label);
  text-transform: uppercase;
  letter-spacing: 0;
}

.service-row__remove {
  background: none;
  border: none;
  color: var(--color-error);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.service-row__remove:hover {
  background-color: rgba(226, 89, 80, 0.08);
}

.service-row__fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

@media (min-width: 768px) {
  .service-row__fields {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    align-items: end;
  }
}

/* Live Calculation Box */
.calc-box {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.calc-box__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  font-size: 14px;
}

.calc-box__row--total {
  border-top: 1px solid var(--color-border);
  margin-top: var(--spacing-sm);
  padding-top: var(--spacing-sm);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-heading);
}

.calc-box__label {
  color: var(--color-body);
}

.calc-box__value {
  color: var(--color-heading);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.calc-box__row--total .calc-box__value {
  color: var(--color-primary);
  font-size: 18px;
}

/* Navigation */
.wizard__nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-md);
  display: flex;
  gap: var(--spacing-md);
  z-index: 50;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.04);
}

@media (min-width: 768px) {
  .wizard__nav {
    position: static;
    border-top: none;
    box-shadow: none;
    margin-top: var(--spacing-xl);
    padding: var(--spacing-xl) var(--spacing-xl);
    justify-content: space-between;
  }
}

.wizard__nav .btn {
  flex: 1;
  min-width: 0;
  white-space: normal;
}

@media (min-width: 768px) {
  .wizard__nav .btn {
    flex: 0 0 auto;
    min-width: 140px;
  }
}

/* Preview */
.preview-container {
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  margin-top: var(--spacing-lg);
}

.preview-frame {
  width: 100%;
  height: 100%;
  min-height: 800px;
  border: none;
  background-color: #ffffff;
  display: block;
  overflow: hidden;
}

@media (min-width: 768px) {
  .preview-frame {
    min-height: 800px;
  }
}

.preview-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  padding: var(--spacing-lg);
  color: #6b7280;
  font-size: 14px;
  line-height: 1.5;
  text-align: center;
  gap: var(--spacing-sm);
}

.preview-placeholder__icon {
  font-size: 24px;
  line-height: 1;
}

.wizard__preview-area {
  display: none;
}

/* Split Layout (Desktop) */
@media (min-width: 1024px) {
  .wizard--split {
    flex-direction: row;
    gap: var(--spacing-xl);
    padding-bottom: 0;
  }

  .wizard--split .wizard__form-area {
    flex: 0 0 50%;
    max-width: 600px;
    margin-left: auto;
    padding: var(--spacing-xl);
    overflow-y: auto;
    max-height: 100vh;
  }

  .wizard--split .wizard__preview-area {
    flex: 0 0 50%;
    background-color: #e8ecf1;
    padding: var(--spacing-xl);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    overflow-y: auto;
    max-height: 100vh;
  }

  .wizard--split .wizard__preview-area .preview-container {
    width: 100%;
    max-width: 595px; /* A4 width approx 72dpi */
    min-height: 842px;
    aspect-ratio: 210 / 297;
    margin-top: 0;
  }

  .wizard--split .wizard__preview-area .preview-frame,
  .wizard--split .wizard__preview-area .preview-placeholder {
    min-height: 842px;
  }

  .wizard--split .wizard__nav {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-xl);
    padding-right: var(--spacing-xl);
  }
}

/* Mobile adjustments for preview */
@media (max-width: 1023px) {
  .wizard__preview-area {
    display: none;
    padding: 0 var(--spacing-md) var(--spacing-xl);
  }

  .wizard__preview-area.is-visible {
    display: block;
  }

  /* Mobile Vorschau: A4 passt nicht in 375px, also horizontal scrollen */
  .preview-container {
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .preview-container::-webkit-scrollbar {
    display: none;
  }

  .preview-frame {
    min-width: 595px;
    min-height: 800px;
  }
}

/* Invoice type specific styles */
.file-upload {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-sm);
}

.file-upload__input {
  position: absolute;
  inset: 0 auto auto 0;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.file-upload__input:focus-visible + .file-upload__button {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 2px;
}

.file-upload__button {
  flex: 0 0 auto;
}

.file-upload__filename {
  min-width: 0;
  color: var(--color-body);
  font-size: 13px;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.logo-preview {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: inline-block;
}

.logo-preview[hidden] {
  display: none !important;
}

.logo-preview img {
  max-height: 64px;
  max-width: 200px;
  display: block;
}

/* Invoice type specific styles */
.invoice-type-info {
  font-size: 13px;
  color: var(--color-body);
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm);
  background-color: var(--color-surface);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-primary);
}

/* Customer selector */
.customer-selector {
  margin-bottom: var(--spacing-lg);
}

.customer-selector__options {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

@media (max-width: 420px) {
  .wizard__header {
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
  }

  .progress-bar {
    padding: 0;
  }

  .progress-bar__dot {
    width: 28px;
    height: 28px;
    font-size: 12px;
  }

  .progress-bar__line {
    top: 13px;
  }

  .progress-bar__label {
    font-size: 11px;
    max-width: 44px;
  }

  .service-row {
    padding: var(--spacing-md);
  }

  .customer-selector__options,
  .radio-group {
    gap: var(--spacing-sm);
  }

  .radio-pill__label {
    padding: 8px 12px;
  }
}

/* Loading state */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 600ms linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Success screen */
.success-screen {
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-md);
}

.success-screen__icon {
  width: 64px;
  height: 64px;
  background-color: rgba(21, 190, 83, 0.1);
  color: var(--color-success);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin-bottom: var(--spacing-lg);
}

.success-screen__title {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: var(--spacing-sm);
}

.success-screen__text {
  font-size: 15px;
  color: var(--color-body);
  margin-bottom: var(--spacing-xl);
}

/* Date row */
.date-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

@media (min-width: 768px) {
  .date-row {
    grid-template-columns: 1fr 1fr;
  }
}

/* Payment terms radio group */
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.radio-pill {
  position: relative;
}

.radio-pill__input {
  position: absolute;
  opacity: 0;
}

.radio-pill__label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-body);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 40px;
}

.radio-pill__input:checked + .radio-pill__label {
  background-color: rgba(83, 58, 253, 0.06);
  color: var(--color-primary);
  border-color: var(--color-primary);
  font-weight: 600;
}

.radio-pill__input:focus-visible + .radio-pill__label {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 2px;
}