/* Vonitum BK-Abrechnung Frontend */
:root {
  --vbka-primary: #2d6a81;
  --vbka-primary-light: #3a8099;
  --vbka-primary-dark: #1e4f63;
  --vbka-accent: #2d6a81;
  --vbka-accent-hover: #245a6d;
  --vbka-danger: #c53030;
  --vbka-warning: #c05621;
  --vbka-success: #2d8a5e;
  --vbka-gray-50: #f8f7f5;
  --vbka-gray-100: #f2efea;
  --vbka-gray-200: #e2dfd9;
  --vbka-gray-300: #c7c4be;
  --vbka-gray-600: #555550;
  --vbka-gray-800: #2a2a28;
  --vbka-radius: 6px;
  --vbka-shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --vbka-shadow-lg: 0 8px 24px rgba(45,106,129,0.12), 0 2px 8px rgba(0,0,0,0.06);
}

.vbka-container {
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 1rem;
  font-family: Helvetica, Arial, sans-serif;
  color: var(--vbka-gray-800);
  line-height: 1.6;
}

.vbka-container *, .vbka-container *::before, .vbka-container *::after {
  box-sizing: border-box;
}

/* Intro */
.vbka-intro {
  margin-bottom: 1.5rem;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(135deg, rgba(45,106,129,0.06) 0%, rgba(45,106,129,0.12) 100%);
  border-left: 4px solid var(--vbka-primary);
  border-radius: var(--vbka-radius);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--vbka-gray-800);
}
.vbka-intro p { margin: 0; }

/* Progress */
.vbka-progress { margin-bottom: 2rem; }
.vbka-progress-steps {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}
.vbka-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  opacity: 0.4;
  transition: opacity 0.3s;
}
.vbka-step.active, .vbka-step.done { opacity: 1; }
.vbka-step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--vbka-gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
}
.vbka-step.active .vbka-step-num { background: var(--vbka-primary); color: #fff; }
.vbka-step.done .vbka-step-num { background: var(--vbka-accent); color: #fff; }
.vbka-step-label { font-size: 0.75rem; color: var(--vbka-gray-600); }
.vbka-progress-bar {
  height: 4px;
  background: var(--vbka-gray-200);
  border-radius: 2px;
  overflow: hidden;
}
.vbka-progress-fill {
  height: 100%;
  background: var(--vbka-accent);
  transition: width 0.4s ease;
  width: 0%;
}

/* Panels */
.vbka-panel {
  background: #fff;
  border: 1px solid var(--vbka-gray-200);
  border-radius: var(--vbka-radius);
  padding: 2rem;
  box-shadow: var(--vbka-shadow);
}
.vbka-panel h2 {
  margin: 0 0 1.5rem 0;
  font-size: 1.5rem;
  color: var(--vbka-primary);
}

/* Type Cards */
.vbka-type-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.vbka-card {
  border: 2px solid var(--vbka-gray-200);
  border-radius: var(--vbka-radius);
  padding: 1.5rem;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}
.vbka-card:hover {
  border-color: var(--vbka-primary-light);
  box-shadow: var(--vbka-shadow-lg);
  transform: translateY(-2px);
}
.vbka-card.selected {
  border-color: var(--vbka-accent);
  background: rgba(45, 106, 129, 0.06);
}
.vbka-card-icon { font-size: 2.5rem; margin-bottom: 0.75rem; }
.vbka-card h3 { margin: 0 0 0.5rem; color: var(--vbka-primary); }
.vbka-card p { color: var(--vbka-gray-600); font-size: 0.875rem; margin: 0 0 0.75rem; }
.vbka-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: left;
  font-size: 0.8rem;
  color: var(--vbka-gray-600);
}
.vbka-card li::before { content: "✓ "; color: var(--vbka-accent); font-weight: bold; }

/* Form Fields */
.vbka-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.vbka-field { display: flex; flex-direction: column; gap: 0.25rem; }
.vbka-field.full { grid-column: 1 / -1; }
.vbka-field.small { max-width: 150px; }
.vbka-field label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--vbka-gray-600);
}
.vbka-field input, .vbka-field select {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--vbka-gray-300);
  border-radius: 6px;
  font-size: 0.9rem;
  transition: border-color 0.2s;
  width: 100%;
}
.vbka-field input:focus, .vbka-field select:focus {
  outline: none;
  border-color: var(--vbka-primary);
  box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}
.vbka-field input.vbka-error {
  border-color: var(--vbka-danger);
  box-shadow: 0 0 0 3px rgba(229, 62, 62, 0.1);
}
.vbka-field-row { display: flex; gap: 1rem; grid-column: 1 / -1; }

/* Price Display */
.vbka-price-display {
  grid-column: 1 / -1;
  background: var(--vbka-gray-50);
  border: 1px solid var(--vbka-gray-200);
  border-radius: var(--vbka-radius);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.vbka-price-label { font-weight: 600; }
.vbka-price-value { font-size: 1.25rem; font-weight: 700; color: var(--vbka-primary); }
.vbka-price-brutto { font-size: 0.8rem; color: var(--vbka-gray-600); }

/* Buttons */
.vbka-btn {
  padding: 0.75rem 1.75rem;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.25s ease;
  text-decoration: none;
  display: inline-block;
  letter-spacing: 0.02em;
}
.vbka-btn-next {
  background: var(--vbka-accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(45,106,129,0.25);
}
.vbka-btn-next:hover { background: var(--vbka-accent-hover); box-shadow: 0 4px 12px rgba(45,106,129,0.35); transform: translateY(-1px); }
.vbka-btn-back {
  background: var(--vbka-gray-100);
  color: var(--vbka-gray-600);
}
.vbka-btn-back:hover { background: var(--vbka-gray-200); }
.vbka-btn-secondary {
  background: none;
  border: 1px dashed var(--vbka-gray-300);
  color: var(--vbka-gray-600);
  margin-top: 1rem;
}
.vbka-btn-secondary:hover { border-color: var(--vbka-primary); color: var(--vbka-primary); }
.vbka-btn-pay, .vbka-btn-pay-final {
  background: var(--vbka-primary);
  color: #fff;
  font-size: 1rem;
  padding: 1rem 2rem;
  width: 100%;
  margin-top: 1rem;
  border-radius: 50px;
  box-shadow: 0 3px 12px rgba(45,106,129,0.3);
}
.vbka-btn-pay:hover, .vbka-btn-pay-final:hover { background: var(--vbka-primary-light); box-shadow: 0 5px 16px rgba(45,106,129,0.4); transform: translateY(-1px); }
.vbka-btn-remove {
  background: none;
  border: none;
  color: var(--vbka-danger);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  line-height: 1;
}

/* Navigation */
.vbka-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--vbka-gray-200);
}

/* Einheiten */
.vbka-einheiten-summary {
  display: flex;
  gap: 2rem;
  margin-bottom: 1.5rem;
  padding: 0.75rem 1rem;
  background: var(--vbka-gray-50);
  border-radius: 6px;
  font-size: 0.875rem;
}
.vbka-einheit-row {
  border: 1px solid var(--vbka-gray-200);
  border-radius: 6px;
  margin-bottom: 0.75rem;
  overflow: hidden;
}
.vbka-einheit-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: var(--vbka-gray-50);
  cursor: pointer;
}
.vbka-einheit-body { padding: 1rem; }
.vbka-einheit-row.collapsed .vbka-einheit-body { display: none; }
.vbka-einheit-row.collapsed .vbka-einheit-toggle { transform: rotate(-90deg); }

/* Kosten */
.vbka-kosten-row {
  border: 1px solid var(--vbka-gray-200);
  border-radius: 6px;
  margin-bottom: 0.75rem;
  padding: 1rem;
}
.vbka-kosten-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr auto;
  gap: 0.75rem;
  align-items: end;
}
.vbka-kosten-verbrauch {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--vbka-gray-200);
}
.vbka-verbrauch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.5rem;
}
.vbka-kosten-summe {
  margin-top: 1.5rem;
  padding: 1rem;
  background: var(--vbka-gray-50);
  border-radius: 6px;
  text-align: right;
  font-size: 1.1rem;
}

/* Preview */
.vbka-preview-header {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--vbka-primary);
}
.vbka-preview-header h3 { margin: 0; color: var(--vbka-primary); }
.vbka-preview-header p { margin: 0.25rem 0; color: var(--vbka-gray-600); font-size: 0.875rem; }
.vbka-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.85rem;
}
.vbka-table th, .vbka-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--vbka-gray-200);
  text-align: left;
}
.vbka-table th {
  background: var(--vbka-gray-50);
  font-weight: 600;
  color: var(--vbka-gray-600);
}
.vbka-table td:last-child, .vbka-table th:last-child { text-align: right; }
.vbka-row-sum td { border-top: 2px solid var(--vbka-gray-800); }
.vbka-row-result.vbka-nachzahlung td { color: var(--vbka-danger); }
.vbka-row-result.vbka-guthaben td { color: var(--vbka-accent); }
.vbka-einheit-preview {
  margin-top: 1.5rem;
  padding: 1rem;
  background: var(--vbka-gray-50);
  border-radius: var(--vbka-radius);
}
.vbka-einheit-preview h4 { margin: 0 0 0.5rem; color: var(--vbka-primary); }

/* Payment */
.vbka-order-summary {
  margin: 1.5rem 0;
  padding: 1.5rem;
  background: var(--vbka-gray-50);
  border-radius: var(--vbka-radius);
}
.vbka-order-summary h3 { margin: 0 0 1rem; font-size: 1rem; }
.vbka-order-line {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
}
.vbka-order-tax { color: var(--vbka-gray-600); font-size: 0.875rem; }
.vbka-order-total {
  border-top: 2px solid var(--vbka-gray-200);
  margin-top: 0.5rem;
  padding-top: 0.75rem;
  font-size: 1.1rem;
}

/* Success */
.vbka-success {
  text-align: center;
  padding: 3rem 1rem;
}
.vbka-success-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--vbka-accent);
  color: #fff;
  font-size: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
}

/* Loading */
.vbka-loading {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  z-index: 9999;
}
.vbka-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--vbka-gray-200);
  border-top-color: var(--vbka-primary);
  border-radius: 50%;
  animation: vbka-spin 0.8s linear infinite;
}
@keyframes vbka-spin { to { transform: rotate(360deg); } }

/* Hint text */
.vbka-hint { font-size: 0.8rem; color: var(--vbka-gray-600); margin: 0.5rem 0 1rem; }

/* Banners */
.vbka-banner {
  padding: 1rem 1.5rem;
  border-radius: var(--vbka-radius);
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}
.vbka-banner-info {
  background: #ebf8ff;
  border: 1px solid #90cdf4;
  color: #2a4365;
}
.vbka-banner-warning {
  background: #fffaf0;
  border: 1px solid #fbd38d;
  color: #7b341e;
}

/* Blurred Preview (Paywall) */
.vbka-blurred {
  filter: blur(6px);
  user-select: none;
  pointer-events: none;
}
.vbka-preview-teaser {
  position: relative;
  margin-top: 2rem;
  padding: 2.5rem 2rem;
  text-align: center;
  background: linear-gradient(135deg, rgba(45,106,129,0.04) 0%, rgba(45,106,129,0.10) 100%);
  border: 2px dashed var(--vbka-primary);
  border-radius: var(--vbka-radius);
}
.vbka-preview-teaser h3 {
  margin: 0 0 0.75rem;
  color: var(--vbka-primary);
  font-size: 1.2rem;
}
.vbka-preview-teaser p {
  color: var(--vbka-gray-600);
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
}
.vbka-preview-teaser ul {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
  display: inline-block;
  text-align: left;
}
.vbka-preview-teaser li {
  padding: 0.25rem 0;
  color: var(--vbka-gray-600);
  font-size: 0.875rem;
}
.vbka-preview-teaser li::before {
  content: "\2713  ";
  color: var(--vbka-primary);
  font-weight: bold;
}
.vbka-preview-lock {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--vbka-gray-600);
  margin-bottom: 1rem;
}
.vbka-preview-lock svg { width: 18px; height: 18px; fill: var(--vbka-primary); }
.vbka-preview-confirmed {
  margin-top: 1.5rem;
  padding: 1rem 1.5rem;
  background: rgba(45, 138, 94, 0.08);
  border: 1px solid rgba(45, 138, 94, 0.25);
  border-radius: var(--vbka-radius);
}
.vbka-preview-confirmed p {
  margin: 0;
  color: var(--vbka-success);
  font-weight: 600;
}

/* Step indicator refinements */
.vbka-step.active .vbka-step-num {
  background: var(--vbka-primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(45,106,129,0.3);
}
.vbka-step.done .vbka-step-num {
  background: var(--vbka-success);
  color: #fff;
}

/* Panel header */
.vbka-panel h2 {
  margin: 0 0 1.5rem 0;
  font-size: 1.35rem;
  color: var(--vbka-primary);
  font-weight: 700;
}

/* Disclaimer */
.vbka-disclaimer {
  margin: 1.25rem 0;
  padding: 1rem 1.25rem;
  background: var(--vbka-gray-50);
  border: 1px solid var(--vbka-gray-200);
  border-radius: var(--vbka-radius);
  font-size: 0.8rem;
  line-height: 1.55;
  color: var(--vbka-gray-600);
}
.vbka-disclaimer p { margin: 0; }

/* Responsive */
@media (max-width: 640px) {
  .vbka-type-cards { grid-template-columns: 1fr; }
  .vbka-form-grid { grid-template-columns: 1fr; }
  .vbka-field-row { flex-direction: column; }
  .vbka-kosten-main { grid-template-columns: 1fr; }
  .vbka-einheiten-summary { flex-direction: column; gap: 0.5rem; }
  .vbka-panel { padding: 1.25rem; }
  .vbka-step-label { display: none; }
}