/* ============================================
   Ist-Aufnahme Web — MVP-Anfrageaufnahme
   Farben: #28529c (Blau), #ed2110 (Rot), #fafafa (BG)
   Fonts: Montserrat (Headings), Open Sans (Body)
   ============================================ */

:root {
  --color-primary: #28529c;
  --color-primary-dark: #1e3d75;
  --color-primary-light: #3a6bc5;
  --color-accent: #ed2110;
  --color-accent-dark: #c41a0d;
  --color-accent-gradient: linear-gradient(135deg, #f72b1a, #c41a0d);
  --color-bg: #f4f6f9;
  --color-white: #ffffff;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-border: #dde1e7;
  --color-border-focus: #28529c;
  --color-error: #d32f2f;
  --color-success: #2e7d32;
  --font-body: 'Open Sans', sans-serif;
  --font-heading: 'Montserrat', sans-serif;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-pill: 50px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --max-width: 800px;
  --transition: all 0.25s ease;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
}

h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 600; color: var(--color-primary-dark); }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.35rem; margin-bottom: 0.5rem; }
h3 { font-size: 1.1rem; margin-bottom: 0.4rem; }

/* ---- Header ---- */
.header {
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header__logo {
  height: 50px;
  width: auto;
}

.header__title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
}

/* ---- Progress Bar ---- */
.progress-bar {
  display: flex;
  justify-content: center;
  gap: 0;
  padding: 1.5rem 1rem 1rem;
  max-width: 700px;
  margin: 0 auto;
}

.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  position: relative;
  cursor: pointer;
}

.progress-step__circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  background: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-text-light);
  transition: var(--transition);
  position: relative;
  z-index: 2;
}

.progress-step__label {
  font-size: 0.65rem;
  color: var(--color-text-light);
  margin-top: 0.3rem;
  text-align: center;
  max-width: 80px;
  line-height: 1.2;
  transition: var(--transition);
}

/* Connector line */
.progress-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 18px;
  left: calc(50% + 18px);
  right: calc(-50% + 18px);
  height: 2px;
  background: var(--color-border);
  z-index: 1;
  transition: var(--transition);
}

.progress-step.active .progress-step__circle {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-white);
}

.progress-step.active .progress-step__label {
  color: var(--color-primary);
  font-weight: 400;
}

.progress-step.completed .progress-step__circle {
  border-color: var(--color-success);
  background: var(--color-success);
  color: var(--color-white);
}

.progress-step.completed .progress-step__label {
  color: var(--color-success);
}

.progress-step.completed::after {
  background: var(--color-success);
}

/* ---- Main Container ---- */
.main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem 3rem;
}

/* ---- Form Step ---- */
.form-step {
  display: none;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 2rem;
  margin-bottom: 1.5rem;
  animation: fadeIn 0.3s ease;
}

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

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

.form-step__title {
  font-size: 1.4rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--color-primary);
}

/* ---- Section ---- */
.section {
  margin-bottom: 1.5rem;
}

.section__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  padding-left: 0.75rem;
  border-left: 3px solid var(--color-primary);
  margin-bottom: 1rem;
}

/* ---- Form Fields ---- */
.field-group {
  margin-bottom: 1rem;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.field-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: 0.3rem;
}

.field-label--required::after {
  content: ' *';
  color: var(--color-accent);
}

.field-input {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 300;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  transition: var(--transition);
  color: var(--color-text);
}

.field-input:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(40, 82, 156, 0.12);
}

.field-input.error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.1);
}

.field-error {
  font-size: 0.78rem;
  color: var(--color-error);
  margin-top: 0.2rem;
  display: none;
}

.field-error.visible { display: block; }

textarea.field-input {
  resize: vertical;
  min-height: 80px;
}

select.field-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.8rem center;
  padding-right: 2.2rem;
}

/* Input with unit */
.input-with-unit {
  position: relative;
}

.input-with-unit .field-input {
  padding-right: 3.5rem;
}

.input-unit {
  position: absolute;
  right: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.8rem;
  color: var(--color-text-light);
  pointer-events: none;
}

/* ---- Toggle Switch ---- */
.toggle-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0;
  border-bottom: 1px solid #f0f0f0;
}

.toggle-label {
  font-size: 0.92rem;
  color: var(--color-text);
}

.toggle {
  position: relative;
  width: 48px;
  height: 26px;
  flex-shrink: 0;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle__slider {
  position: absolute;
  inset: 0;
  background: #ccc;
  border-radius: 26px;
  cursor: pointer;
  transition: var(--transition);
}

.toggle__slider::before {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  left: 3px;
  bottom: 3px;
  background: var(--color-white);
  border-radius: 50%;
  transition: var(--transition);
}

.toggle input:checked + .toggle__slider {
  background: var(--color-primary);
}

.toggle input:checked + .toggle__slider::before {
  transform: translateX(22px);
}

.toggle input:focus + .toggle__slider {
  box-shadow: 0 0 0 3px rgba(40, 82, 156, 0.2);
}

/* Conditional field (hidden by default) */
.conditional-field {
  display: none;
  padding-left: 1rem;
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
  border-left: 2px solid var(--color-border);
  animation: fadeIn 0.2s ease;
}

.conditional-field.visible { display: block; }

/* ---- Checkbox Group (Card Style) ---- */
.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.checkbox-card {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  background: var(--color-white);
}

.checkbox-card:hover {
  border-color: var(--color-primary-light);
  background: rgba(40, 82, 156, 0.02);
}

.checkbox-card.selected {
  border-color: var(--color-primary);
  background: rgba(40, 82, 156, 0.05);
}

.checkbox-card input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
}

.checkbox-card__label {
  font-size: 0.9rem;
  line-height: 1.45;
  color: var(--color-text);
}

/* ---- Radio Group ---- */
.radio-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.radio-option {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
}

.radio-option input[type="radio"] {
  accent-color: var(--color-primary);
}

.radio-option__label {
  font-size: 0.9rem;
}

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

.btn {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.7rem 2rem;
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.btn:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn--primary:hover {
  background: var(--color-accent-dark);
  box-shadow: 0 4px 12px rgba(237, 33, 16, 0.3);
}

.btn--secondary {
  background: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn--outline {
  background: transparent;
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
}

.btn--outline:hover {
  border-color: var(--color-text-light);
  color: var(--color-text);
}

.btn--small {
  font-size: 0.8rem;
  padding: 0.4rem 1rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ---- Summary (Step 7) ---- */
.summary-section {
  margin-bottom: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.summary-section__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: rgba(40, 82, 156, 0.04);
  border-bottom: 1px solid var(--color-border);
}

.summary-section__title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-primary);
}

.summary-section__edit {
  font-size: 0.8rem;
  color: var(--color-primary);
  text-decoration: none;
  cursor: pointer;
}

.summary-section__edit:hover { text-decoration: underline; }

.summary-table {
  width: 100%;
  border-collapse: collapse;
}

.summary-table td {
  padding: 0.5rem 1rem;
  font-size: 0.88rem;
  border-bottom: 1px solid #f5f5f5;
  vertical-align: top;
}

.summary-table td:first-child {
  color: var(--color-text-light);
  width: 45%;
  font-weight: 400;
}

.summary-table td:last-child {
  color: var(--color-text);
  font-weight: 400;
}

.summary-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  padding: 0.5rem 1rem;
}

.summary-chip {
  font-size: 0.78rem;
  padding: 0.25rem 0.6rem;
  background: rgba(40, 82, 156, 0.08);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
}

/* Privacy checkbox */
.privacy-check {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin: 1.5rem 0;
  padding: 1rem;
  background: #fafafa;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.privacy-check input { margin-top: 3px; accent-color: var(--color-primary); }
.privacy-check label { font-size: 0.85rem; line-height: 1.4; }

/* Action buttons group */
.action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 1.5rem;
}

/* Webhook status */
.webhook-status {
  text-align: center;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  display: none;
}

.webhook-status.success { color: var(--color-success); display: block; }
.webhook-status.error { color: var(--color-error); display: block; }

/* ---- Footer ---- */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.7);
  text-align: center;
  padding: 1.5rem;
  font-size: 0.8rem;
}

.footer a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
}

.footer a:hover { text-decoration: underline; }

/* ---- Autosave Indicator ---- */
.autosave-indicator {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  font-size: 0.75rem;
  color: var(--color-success);
  background: var(--color-white);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 50;
}

.autosave-indicator.visible { opacity: 1; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .form-step { padding: 1.25rem; }
  .field-row { grid-template-columns: 1fr; }
  .progress-step__label { font-size: 0.55rem; max-width: 50px; }
  .progress-step__circle { width: 30px; height: 30px; font-size: 0.75rem; }
  .progress-step:not(:last-child)::after { top: 15px; left: calc(50% + 15px); right: calc(-50% + 15px); }
  .btn { padding: 0.6rem 1.2rem; font-size: 0.85rem; }
  .header__title { font-size: 0.9rem; }
  .action-buttons { flex-direction: column; }
  .action-buttons .btn { width: 100%; justify-content: center; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .form-step { padding: 1.75rem; }
}

/* ---- Print ---- */
@media print {
  .header, .progress-bar, .step-nav, .footer, .autosave-indicator { display: none; }
  .form-step { display: block !important; box-shadow: none; break-inside: avoid; }
}