/* Steuerrechner – CSS (Theme-integriert) */

:root {
  /* Von clearlybooks Theme übernomme */
  --brand-primary: #2e509f;
  --brand-dark: #243e7c;
  --brand-light: #4b6dbd;
  --brand-soft: #f0f3f9;

  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;

  --yellow-500: #eab308;
  --green-500: #22c55e;

  /* Tool-spezifische Variablen */
  --calc-radius: 0.75rem;
  --calc-shadow: 0 2px 12px rgba(15, 23, 42, 0.06);
  --calc-shadow-hover: 0 12px 32px rgba(46, 80, 159, 0.12);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--slate-50);
  color: var(--slate-900);
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Jost', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
}

/* HERO */
.calc-hero {
  background: linear-gradient(160deg, var(--brand-soft) 0%, #fff 60%);
  border-bottom: 1px solid var(--slate-200);
  padding: 4rem 0;
  text-align: center;
}

.calc-hero h1 {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  margin-bottom: 1rem;
}

.calc-hero p {
  font-size: 1.125rem;
  color: var(--slate-500);
  max-width: 600px;
  margin: 0 auto;
}

/* CONTAINER & WRAPPER */
.calc-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.calc-wrapper {
  padding: 4rem 0;
}

.calc-content {
  background: white;
  border-radius: var(--calc-radius);
  box-shadow: var(--calc-shadow);
  padding: 2rem;
}

@media (max-width: 768px) {
  .calc-content {
    padding: 1.5rem;
  }
}

/* PROGRESS BAR */
.calc-progress {
  margin-bottom: 2rem;
  text-align: center;
}

.calc-progress-bar {
  height: 4px;
  background-color: var(--slate-200);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 0.75rem;
}

.calc-progress-bar::after {
  content: '';
  display: block;
  height: 100%;
  background-color: var(--brand-primary);
  width: 25%;
  transition: width 0.3s ease;
}

#progressBar {
  height: 100%;
  background-color: var(--brand-primary);
  width: 25%;
  transition: width 0.3s ease;
}

.calc-progress p {
  font-size: 0.875rem;
  color: var(--slate-500);
  margin: 0;
}

/* STEPS */
.calc-step {
  display: none;
  animation: fadeIn 0.3s ease;
}

.calc-step.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.calc-step-header {
  margin-bottom: 2rem;
}

.calc-step-header h2 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.calc-step-subtitle {
  color: var(--slate-500);
  margin: 0;
  font-size: 1rem;
}

/* CHOICE CARDS */
.calc-choices {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.calc-choice-card {
  display: block;
  border: 2px solid var(--slate-200);
  border-radius: var(--calc-radius);
  padding: 1.5rem;
  cursor: pointer;
  transition: all 0.25s ease;
  text-decoration: none;
  color: inherit;
}

.calc-choice-card:hover {
  border-color: var(--brand-primary);
  box-shadow: var(--calc-shadow-hover);
  transform: translateY(-2px);
}

.calc-choice-card input[type="radio"] {
  display: none;
}

.calc-choice-card input[type="radio"]:checked + .calc-choice-content {
  color: var(--brand-primary);
}

.calc-choice-card input[type="radio"]:checked ~ * {
  border-color: var(--brand-primary);
}

.calc-choice-card.active {
  border-color: var(--brand-primary);
  background-color: var(--brand-soft);
}

.calc-choice-content h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.calc-choice-content p {
  font-size: 0.875rem;
  color: var(--slate-500);
  margin: 0;
}

/* TABS */
.calc-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--slate-100);
}

.calc-tab-btn {
  padding: 0.75rem 1rem;
  border: none;
  background: none;
  color: var(--slate-600);
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.calc-tab-btn:hover {
  color: var(--brand-primary);
}

.calc-tab-btn.active {
  color: var(--brand-primary);
  border-bottom-color: var(--brand-primary);
}

.calc-tab-content {
  display: none;
}

.calc-tab-content.active {
  display: block;
}

/* FORMS */
.calc-form-group {
  margin-bottom: 1.5rem;
}

.calc-form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--slate-900);
  font-size: 0.95rem;
}

.calc-form-group input[type="number"],
.calc-form-group input[type="text"],
.calc-form-group select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--slate-200);
  border-radius: calc(var(--calc-radius) / 1.25);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s ease;
}

.calc-form-group input[type="number"]:focus,
.calc-form-group input[type="text"]:focus,
.calc-form-group select:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(46, 80, 159, 0.1);
}

.calc-form-group small {
  display: block;
  font-size: 0.8125rem;
  color: var(--slate-500);
  margin-top: 0.25rem;
}

.calc-input-group {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.calc-input-group input[type="range"] {
  flex: 1;
}

.calc-input-small {
  width: 80px !important;
  text-align: center;
}

.calc-slider {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--slate-200);
  outline: none;
  -webkit-appearance: none;
}

.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--brand-primary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.calc-slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
  box-shadow: 0 0 0 4px rgba(46, 80, 159, 0.2);
}

.calc-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--brand-primary);
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

.calc-slider-value {
  text-align: center;
  font-weight: 600;
  color: var(--brand-primary);
  margin-top: 0.5rem;
}

.calc-preset-buttons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.calc-preset {
  padding: 0.75rem;
  border: 1px solid var(--slate-200);
  background: white;
  border-radius: calc(var(--calc-radius) / 1.25);
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 500;
  transition: all 0.2s ease;
  text-align: center;
}

.calc-preset:hover {
  border-color: var(--brand-primary);
  color: var(--brand-primary);
}

.calc-preset span {
  display: block;
  font-size: 0.7rem;
  color: var(--slate-500);
  margin-top: 0.25rem;
}

.calc-collapsible {
  margin-top: 2rem;
  border: 1px solid var(--slate-200);
  border-radius: var(--calc-radius);
  padding: 1rem;
}

.calc-collapsible summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--brand-primary);
  user-select: none;
}

.calc-collapsible[open] summary {
  margin-bottom: 1rem;
}

.calc-collapsible-inline {
  border: none;
  padding: 0;
  margin-top: 0;
}

.calc-collapsible-inline summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--brand-primary);
  user-select: none;
  padding: 0;
  display: inline-block;
}

.calc-collapsible-inline[open] summary {
  margin-bottom: 1rem;
}

.calc-radio-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.calc-radio {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.calc-radio input[type="radio"] {
  accent-color: var(--brand-primary);
  cursor: pointer;
}

.calc-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  cursor: pointer;
}

.calc-checkbox input[type="checkbox"] {
  accent-color: var(--brand-primary);
  margin-top: 0.25rem;
  cursor: pointer;
}

.calc-year-selector {
  display: flex;
  gap: 0.75rem;
}

.calc-year-btn {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid var(--slate-200);
  background: white;
  border-radius: calc(var(--calc-radius) / 1.25);
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s ease;
}

.calc-year-btn:hover {
  border-color: var(--brand-primary);
}

.calc-year-btn.active {
  background-color: var(--brand-primary);
  color: white;
  border-color: var(--brand-primary);
}

/* NAVIGATION */
.calc-step-nav {
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-top: 2rem;
}

.calc-btn-prev,
.calc-btn-next,
.calc-btn-restart {
  padding: 0.875rem 1.75rem;
  border: none;
  border-radius: var(--calc-radius);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 1rem;
}

.calc-btn-next,
.calc-btn-restart {
  background-color: var(--brand-primary);
  color: white;
}

.calc-btn-next:hover,
.calc-btn-restart:hover {
  background-color: var(--brand-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(46, 80, 159, 0.2);
}

.calc-btn-prev {
  background-color: var(--slate-100);
  color: var(--slate-700);
}

.calc-btn-prev:hover {
  background-color: var(--slate-200);
}

/* ERGEBNIS */
.calc-result-main {
  background: linear-gradient(135deg, var(--brand-soft) 0%, #fff 100%);
  border: 2px solid var(--brand-primary);
  border-radius: var(--calc-radius);
  padding: 2rem;
  text-align: center;
  margin-bottom: 2rem;
}

.calc-result-big {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.calc-result-label {
  font-size: 0.95rem;
  color: var(--slate-600);
  font-weight: 500;
}

.calc-result-value {
  font-size: clamp(2rem, 8vw, 3.5rem);
  font-weight: 700;
  color: var(--brand-primary);
  font-family: 'Jost', sans-serif;
}

.calc-result-rate {
  font-size: 1.25rem;
  color: var(--slate-600);
}

.calc-result-breakdown {
  margin-bottom: 2rem;
}

.calc-result-breakdown h3 {
  font-size: 1.125rem;
  margin-bottom: 1rem;
}

.calc-breakdown-items {
  background: var(--slate-50);
  border-radius: var(--calc-radius);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.calc-breakdown-item {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem;
  border-bottom: 1px solid var(--slate-200);
  font-size: 0.95rem;
}

.calc-breakdown-item:last-child {
  border-bottom: none;
}

.calc-breakdown-label {
  font-weight: 500;
  color: var(--slate-700);
}

.calc-breakdown-value {
  font-weight: 600;
  color: var(--slate-900);
}

.calc-result-net {
  background: var(--brand-soft);
  border-radius: var(--calc-radius);
  padding: 1.5rem;
  text-align: center;
  margin-bottom: 2rem;
}

.calc-result-net p {
  margin: 0 0 0.75rem;
  color: var(--slate-600);
}

.calc-result-net-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--green-500);
  font-family: 'Jost', sans-serif;
}

.calc-result-visualization {
  margin-bottom: 2rem;
}

.calc-bar-container {
  display: flex;
  height: 40px;
  border-radius: var(--calc-radius);
  overflow: hidden;
  box-shadow: var(--calc-shadow);
  margin-bottom: 1rem;
}

.calc-bar-segment {
  transition: width 0.3s ease;
}

.calc-bar-tax {
  background-color: #ef4444;
}

.calc-bar-net {
  background-color: var(--green-500);
}

.calc-bar-legend {
  display: flex;
  gap: 2rem;
  font-size: 0.875rem;
  justify-content: center;
}

.calc-bar-legend span {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.calc-bar-color {
  width: 16px;
  height: 16px;
  border-radius: 2px;
}

.calc-bar-color.calc-bar-tax {
  background-color: #ef4444;
}

.calc-bar-color.calc-bar-net {
  background-color: var(--green-500);
}

/* INFO BOXES */
.calc-info-box {
  background: #fef3c7;
  border: 1px solid #fde68a;
  border-radius: var(--calc-radius);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.calc-info-box h4 {
  margin-bottom: 0.5rem;
  color: var(--slate-900);
}

.calc-info-box p {
  margin: 0;
  color: var(--slate-700);
  font-size: 0.95rem;
}

.calc-disclaimer {
  background: #fee2e2;
  border: 1px solid #fecaca;
  border-radius: var(--calc-radius);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.calc-disclaimer h4 {
  margin-bottom: 0.5rem;
  color: var(--slate-900);
}

.calc-disclaimer p {
  margin: 0;
  color: var(--slate-700);
  font-size: 0.95rem;
}

/* CTA */
.calc-cta {
  text-align: center;
  margin-bottom: 2rem;
}

.calc-btn-cta {
  display: inline-block;
  padding: 1rem 2rem;
  background-color: var(--brand-primary);
  color: white;
  border: none;
  border-radius: var(--calc-radius);
  font-weight: 700;
  font-size: 1.0625rem;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.25s ease;
  font-family: 'Jost', sans-serif;
}

.calc-btn-cta:hover {
  background-color: var(--brand-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(46, 80, 159, 0.2);
}

/* ACCESSIBILITY */
button:focus,
input:focus,
select:focus,
a:focus {
  outline: 2px solid var(--brand-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* RESPONSIVE */
@media (max-width: 640px) {
  .calc-step-nav {
    flex-direction: column;
  }

  .calc-btn-prev,
  .calc-btn-next,
  .calc-btn-restart {
    width: 100%;
  }

  .calc-preset-buttons {
    grid-template-columns: repeat(2, 1fr);
  }

  .calc-bar-legend {
    flex-direction: column;
    gap: 0.5rem;
  }
}