html,body{height:100%;margin:0;padding:0;}
#map{height:100%;}

/* ================== Snake-Border ================== */
.snake-btn{
  /* ▸ Stellschrauben (einfach anpassen) */
  --snake-col : #ffffff;   /* Neon-Farbe des Laserstrichs      */
  --snake-w   : 5px;       /* sichtbare Rahmenbreite           */
  --snake-len : 14deg;     /* Länge des leuchtenden Segments   */
  --snake-blur: 20px;      /* Glow-Intensität (0 = kein Glow)  */
  --snake-spd : 1.5s;      /* Dauer eines kompletten Umlaufs   */

  /* Basis-Layout – ändere gern Padding, Font usw. */
  position: relative;
  display: inline-block;   /* macht's auch für <a> u. <button> nutzbar */
  padding: 14px 32px;
  font: 600 1rem/1.2 system-ui, sans-serif;
  color: #fff;
  background: #010101ab;
  border: var(--snake-w) solid transparent;     /* Platz für Laser */
  border-radius: 8px;
  cursor: pointer;
  overflow: hidden;        /* verhindert Überstrahlen ins Layout */
  text-decoration: none;   /* falls <a> */
  transition: transform 0.2s ease;
}

.snake-btn:hover {
  transform: scale(1.05);
}

.snake-btn.active {
  box-shadow: 0 0 20px rgba(255,255,255,0.3);
}

/* --------- Wandernde Linien (4 × < span > ) --------- */
.snake-btn span{
  position: absolute;
  background: var(--snake-col);
  filter: blur(var(--snake-blur));
}

/* Obere Linie */
.snake-btn span:nth-child(1){
  top: 0; left: 0; width: 100%; height: var(--snake-w);
  background: linear-gradient(to right, transparent, var(--snake-col) 60%, transparent);
  animation: snake-x var(--snake-spd) linear infinite;
}

/* Rechte Linie */
.snake-btn span:nth-child(2){
  top: 0; right: 0; width: var(--snake-w); height: 100%;
  background: linear-gradient(to bottom, transparent, var(--snake-col) 60%, transparent);
  animation: snake-y var(--snake-spd) linear infinite;
  animation-delay: calc(var(--snake-spd)/2);
}

/* Untere Linie */
.snake-btn span:nth-child(3){
  bottom: 0; left: 0; width: 100%; height: var(--snake-w);
  background: linear-gradient(to left, transparent, var(--snake-col) 60%, transparent);
  animation: snake-x var(--snake-spd) linear infinite reverse;
}

/* Linke Linie */
.snake-btn span:nth-child(4){
  top: 0; left: 0; width: var(--snake-w); height: 100%;
  background: linear-gradient(to top, transparent, var(--snake-col) 60%, transparent);
  animation: snake-y var(--snake-spd) linear infinite reverse;
  animation-delay: calc(var(--snake-spd)/2);
}

/* ---------- Keyframes: horizontales & vertikales Wandern ---------- */
@keyframes snake-x{
  0%  { transform: translateX(-100%); }
  100%{ transform: translateX(100%);  }
}
@keyframes snake-y{
  0%  { transform: translateY(-100%); }
  100%{ transform: translateY(100%);  }
}

/* ================== Slider Styling ================== */
.form-range {
  height: 1.5rem;
}

.form-range::-webkit-slider-thumb {
  width: 1.2rem;
  height: 1.2rem;
  background: #0d6efd;
  border: 2px solid #fff;
  box-shadow: 0 0 5px rgba(0,0,0,0.3);
  cursor: pointer;
}

.form-range::-moz-range-thumb {
  width: 1.2rem;
  height: 1.2rem;
  background: #0d6efd;
  border: 2px solid #fff;
  box-shadow: 0 0 5px rgba(0,0,0,0.3);
  cursor: pointer;
}

#min-age-slider::-webkit-slider-thumb {
  background: #dc3545;
}

#min-age-slider::-moz-range-thumb {
  background: #dc3545;
}

#max-age-slider::-webkit-slider-thumb {
  background: #28a745;
}

#max-age-slider::-moz-range-thumb {
  background: #28a745;
}

/* ================== Popup Styling ================== */
.leaflet-popup-content {
  margin: 0;
  min-width: 250px;
}

.popup-content {
  padding: 10px;
}

.leaflet-popup-content table {
  margin: 0 !important;
}

.leaflet-popup-content .alert {
  margin: 0 0 10px 0;
  padding: 8px !important;
  border-radius: 4px;
}

/* ================== Cluster Styling ================== */
.marker-cluster {
  background-clip: padding-box;
  border-radius: 20px;
}

.marker-cluster div {
  width: 30px;
  height: 30px;
  margin-left: 5px;
  margin-top: 5px;
  text-align: center;
  border-radius: 15px;
  font: 12px Arial, Helvetica, sans-serif;
  color: white;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
}

.marker-cluster-small {
  background-color: rgba(110, 204, 57, 0.6);
}
.marker-cluster-small div {
  background-color: rgba(110, 204, 57, 0.9);
}

.marker-cluster-medium {
  background-color: rgba(241, 211, 87, 0.6);
}
.marker-cluster-medium div {
  background-color: rgba(241, 211, 87, 0.9);
}

.marker-cluster-large {
  background-color: rgba(253, 156, 115, 0.6);
}
.marker-cluster-large div {
  background-color: rgba(253, 156, 115, 0.9);
  width: 40px;
  height: 40px;
}

/* ================== Stats Box ================== */
#stats {
  max-width: 180px;
  opacity: 0.95;
  transition: opacity 0.2s;
}

#stats:hover {
  opacity: 1;
}

/* ================== Filter Box ================== */
.bg-light {
  background-color: #f8f9fa !important;
}

.badge {
  font-weight: 500;
  padding: 0.375rem 0.75rem;
}

/* ================== Select Styling ================== */
select[multiple] {
  border: 2px solid #dee2e6;
  border-radius: 0.375rem;
  transition: border-color 0.15s ease-in-out;
}

select[multiple]:focus {
  border-color: #86b7fe;
  outline: 0;
  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

/* ================== Responsive ================== */
@media (max-width: 768px) {
  aside {
    width: 280px !important;
  }
  
  .snake-btn {
    padding: 10px 20px;
    font-size: 0.875rem;
  }
  
  #stats {
    top: 60px !important;
    right: 10px !important;
  }
}