:root {
  /* VG Höchstadt Farbschema */
  --vg-black: #000000;
  --vg-primary: #466991;
  --vg-primary-dark: #3b5a8c;
  --vg-secondary: #89b1e2;
  --vg-secondary-light: #c5daf2;

  --bg: #eef2f7;
  --surface: #ffffff;
  --primary: var(--vg-primary);
  --primary-hover: var(--vg-primary-dark);
  --accent: var(--vg-secondary);
  --accent-hover: #6a9ed4;
  --danger: #c0392b;
  --text: #1a2433;
  --muted: #5a6a7e;
  --border: #cdd8e6;
  --radius: 10px;
  --shadow: 0 2px 14px rgba(70, 105, 145, 0.1);
  --header-bg: #ffffff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

header,
.site-header {
  background: #fff;
  color: var(--text);
  padding: 0.75rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(70, 105, 145, 0.06);
}

.header-brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
  background: transparent;
}

.header-logo {
  height: 56px;
  width: auto;
  max-width: min(440px, 60vw);
  min-height: 40px;
  object-fit: contain;
  display: block;
  opacity: 1;
}

header nav { display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap; justify-content: flex-end; }

#user-info { font-size: 0.85rem; color: var(--muted); }

main {
  max-width: 1100px;
  margin: 2rem auto;
  padding: 0 1.5rem 3rem;
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card h2 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: var(--primary);
  border-bottom: 2px solid var(--border);
  padding-bottom: 0.5rem;
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }

@media (max-width: 768px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--muted);
}

input, select, textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  margin-bottom: 0.85rem;
}

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

.btn {
  display: inline-block;
  padding: 0.55rem 1.1rem;
  border: none;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: #6c7a89; color: #fff; }
.btn-secondary:hover { background: #586574; }
.btn-success { background: var(--vg-primary); color: #fff; }
.btn-success:hover { background: var(--vg-primary-dark); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline {
  background: transparent;
  border: 1px solid var(--vg-primary);
  color: var(--vg-primary);
}
.btn-outline:hover {
  background: rgba(70, 105, 145, 0.08);
  border-color: var(--vg-primary-dark);
  color: var(--vg-primary-dark);
}
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.8rem; }
.btn + .btn { margin-left: 0.4rem; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th, td {
  text-align: left;
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

th { background: #e8eef5; font-weight: 600; color: var(--vg-primary-dark); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; }

.badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-gebucht { background: #d4edda; color: #155724; }
.badge-storniert { background: #f8d7da; color: #721c24; }
.badge-abgeschlossen { background: #d1ecf1; color: #0c5460; }
.badge-frei { background: var(--vg-secondary-light); color: var(--vg-primary-dark); }

.alert {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}
.alert-error { background: #fdecea; color: #c0392b; border: 1px solid #f5c6cb; }
.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-info { background: #e8f0f8; color: var(--vg-primary-dark); border: 1px solid var(--vg-secondary); }

.tabs { display: flex; gap: 0.25rem; margin-bottom: 1.25rem; flex-wrap: wrap; }
.tab {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 6px 6px 0 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--muted);
}
.tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.hidden { display: none !important; }
.text-muted { color: var(--muted); font-size: 0.85rem; }
.mt-1 { margin-top: 0.5rem; }
.actions { white-space: nowrap; }

.hero {
  text-align: center;
  padding: 2rem 1rem;
}
.hero h2 { font-size: 1.6rem; color: var(--primary); margin-bottom: 0.5rem; }
.hero p { color: var(--muted); max-width: 600px; margin: 0 auto 1.5rem; }

.slot-list { display: grid; gap: 0.5rem; }
.slot-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fafbfc;
}
.slot-item:hover { border-color: var(--primary); }

.empty { text-align: center; padding: 2rem; color: var(--muted); }

@media (max-width: 640px) {
  header, .site-header { padding: 0.65rem 1rem; flex-wrap: wrap; }
  .header-logo { height: 40px; max-width: 70vw; }
}

/* --- Öffentliche Buchung --- */
.top-accent {
  height: 4px;
  background: linear-gradient(90deg, var(--vg-primary), var(--vg-secondary));
}

.buchung-page { max-width: 960px; margin: 0 auto; }

.booking-steps {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.booking-step {
  flex: 1;
  min-width: 120px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 0.85rem;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.8rem;
  color: var(--muted);
}
.booking-step .step-num {
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  background: #e8edf5;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}
.booking-step.active {
  border-color: var(--vg-primary);
  color: var(--vg-primary-dark);
  background: #e8f0f8;
}
.booking-step.active .step-num {
  background: var(--vg-primary);
  color: #fff;
}
.booking-step.done {
  border-color: var(--vg-secondary);
  color: var(--vg-primary-dark);
}
.booking-step.done .step-num {
  background: var(--vg-secondary);
  color: var(--vg-primary-dark);
}

.buchung-hero {
  text-align: center;
  margin-bottom: 2rem;
}
.buchung-hero h2 {
  font-size: 1.75rem;
  color: var(--primary);
  margin-bottom: 0.4rem;
}
.buchung-hero p { color: var(--muted); }

.search-wrap { margin-bottom: 1.75rem; }
.search-input {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border: 2px solid var(--border);
  border-radius: 50px;
  font-size: 1rem;
  background: #fff;
  margin-bottom: 0;
  transition: border-color 0.15s;
}
.search-input:focus {
  outline: none;
  border-color: var(--primary);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}
.service-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform 0.15s, box-shadow 0.15s;
}
.service-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(70, 105, 145, 0.15);
}
.service-card-body {
  padding: 1.25rem;
  flex: 1;
}
.service-card h3 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
  color: var(--text);
  line-height: 1.35;
  font-weight: 500;
}
.service-desc {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
}
.service-tag {
  display: inline-block;
  font-size: 0.75rem;
  background: var(--vg-secondary-light);
  color: var(--vg-primary-dark);
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  font-weight: 600;
}
.service-card-btn {
  margin: 0 1.25rem 1.25rem;
  width: calc(100% - 2.5rem);
  text-align: center;
  border-radius: 8px;
}

.page-heading {
  font-size: 1.4rem;
  color: var(--primary);
  margin-bottom: 0.35rem;
}
.page-subheading {
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.info-panel {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
  overflow: hidden;
  margin-bottom: 2rem;
}
.info-panel-title {
  background: #e8f0f8;
  padding: 0.85rem 1.25rem;
  font-weight: 600;
  color: var(--vg-primary-dark);
  border-bottom: 1px solid var(--border);
}
.info-panel-content {
  padding: 1.25rem;
  white-space: pre-wrap;
  line-height: 1.65;
}

.zeit-meta-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  display: grid;
  gap: 0.5rem;
}
.meta-label {
  display: inline-block;
  min-width: 7rem;
  font-weight: 600;
  color: var(--muted);
  font-size: 0.85rem;
}

.nav-buttons {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.day-accordion { margin-bottom: 0.65rem; }
.day-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.15rem;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 600;
  user-select: none;
  box-shadow: var(--shadow);
}
.day-header.open {
  border-radius: var(--radius) var(--radius) 0 0;
  border-bottom: none;
  background: #e8f0f8;
  color: var(--vg-primary-dark);
}
.day-header .arrow {
  font-size: 1.1rem;
  transition: transform 0.2s;
  color: var(--primary);
}
.day-header.open .arrow { transform: rotate(90deg); }
.day-count {
  margin-left: auto;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
}
.day-slots {
  display: none;
  padding: 1rem;
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  background: #fff;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.day-slots.open { display: flex; }

.slot-btn {
  background: #fff;
  border: 2px solid var(--primary);
  color: var(--primary);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.15s;
}
.slot-btn:hover { background: #e8f0f8; }
.slot-btn.selected {
  background: var(--vg-primary);
  color: #fff;
  border-color: var(--vg-primary);
}

.buchung-form-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-top: 0.5rem;
}

body.buchung-mode {
  background: var(--bg);
}
body.buchung-mode main {
  max-width: 960px;
  margin: 1.5rem auto;
}

/* --- Slot-Verwaltung (Backend) --- */
.slot-toolbar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.slot-filters {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 1rem;
  background: #f4f7fb;
  border-radius: var(--radius);
  margin-bottom: 1rem;
}
.slot-filters label { margin-bottom: 0.25rem; }
.slot-filters select { margin-bottom: 0; }

@media (max-width: 600px) {
  .slot-filters { grid-template-columns: 1fr; }
}

.slot-summary {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 1rem;
  font-weight: 600;
}

.slot-grouped-list { display: flex; flex-direction: column; gap: 0.5rem; }

.slot-day-group {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}

.slot-day-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: #f4f7fb;
  cursor: pointer;
  user-select: none;
  font-weight: 600;
}
.slot-day-header:hover { background: #e8f0f8; }
.slot-day-header.open { background: #e8f0f8; color: var(--vg-primary-dark); }
.slot-day-header .arrow {
  font-size: 1rem;
  color: var(--vg-primary);
  transition: transform 0.2s;
}
.slot-day-header.open .arrow { transform: rotate(90deg); }
.slot-day-title { flex: 1; }
.slot-day-stats { display: flex; gap: 0.35rem; flex-wrap: wrap; }

.slot-day-body {
  display: none;
  padding: 0.75rem 1rem 1rem;
  border-top: 1px solid var(--border);
}
.slot-day-body.open { display: block; }

.slot-time-block {
  margin-bottom: 1rem;
}
.slot-time-block:last-child { margin-bottom: 0; }

.slot-time-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--vg-primary);
  margin-bottom: 0.5rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px dashed var(--border);
}

.slot-chip-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.slot-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #fafbfc;
}
.slot-chip-free { border-left: 3px solid var(--vg-secondary); }
.slot-chip-booked { border-left: 3px solid #6c9a6e; background: #f8faf8; }

.slot-chip-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  min-width: 0;
}
.slot-chip-abt {
  font-size: 0.9rem;
  font-weight: 500;
}
.slot-chip-status .badge { font-size: 0.7rem; }

.slot-chip .btn-sm {
  padding: 0.2rem 0.5rem;
  font-size: 0.75rem;
  flex-shrink: 0;
}