* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: "Roboto", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: #f5f5f5;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

#app {
  width: 600px;
  height: 600px;
  background: #ffffff;
  border: 1px solid #dddddd;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  padding: 16px;
  display: flex;
  flex-direction: column;
}

/* Header */

.app-header h1 {
  margin: 0 0 4px;
  font-size: 20px;
  font-weight: 600;
}

.app-header p {
  margin: 0;
  font-size: 13px;
  color: #555555;
}

/* Main */

.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  margin-top: 12px;
  overflow: hidden;
}

/* Controls */

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.control-group {
  flex: 1 1 30%;
  min-width: 160px;
  display: flex;
  flex-direction: column;
}

.control-group label {
  font-size: 12px;
  margin-bottom: 2px;
  color: #333333;
}

.control-group select {
  padding: 4px 6px;
  font-size: 13px;
  border: 1px solid #cccccc;
  border-radius: 4px;
  background: #ffffff;
}

/* Results */

.results {
  flex: 1;
  display: flex;
  gap: 12px;
  overflow: hidden;
}

.centers-panel,
.details-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 8px;
  overflow: hidden;
}

.centers-panel h2,
.details-panel h2 {
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 500;
  border-bottom: 1px solid #eeeeee;
  padding-bottom: 4px;
}

.centers-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  overflow-y: auto;
}

.centers-list li {
  padding: 6px 4px;
  cursor: pointer;
  border-radius: 4px;
}

.centers-list li + li {
  border-top: 1px solid #f0f0f0;
}

.centers-list li:hover {
  background: #f2f6ff;
}

.centers-list li.active {
  background: #e0ebff;
  font-weight: 500;
}

.centers-list .placeholder {
  cursor: default;
  color: #777777;
}

/* Dettagli centro */

.center-details {
  flex: 1;
  font-size: 13px;
  overflow-y: auto;
}

.center-details h3 {
  margin-top: 0;
  margin-bottom: 4px;
  font-size: 14px;
}

.center-details p {
  margin: 4px 0;
}

.center-details strong {
  font-weight: 500;
}

.center-details .placeholder {
  color: #777777;
}

/* Footer con logo WIRED */

.app-footer {
  margin-top: 8px;
  padding-top: 6px;
  border-top: 1px solid #eeeeee;
  text-align: center;
}

.wired-logo {
  max-width: 120px;  /* piccolo */
  height: auto;
  display: inline-block;
}