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

#map-container,
#map-container iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.leaflet-control-attribution {
  font-size: 0.65rem;
}

.welcome {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(3px);
}

.welcome[hidden] {
  display: none !important;
}

.welcome-card {
  width: min(440px, 100%);
  box-sizing: border-box;
  padding: 34px 32px 30px;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 12px 40px rgba(0, 50, 70, 0.22);
  text-align: center;
  font-family: Arial, sans-serif;
  color: #173743;
}

.logo {
  width: 112px;
  height: 112px;
  object-fit: contain;
  margin-bottom: 8px;
}

h1 {
  margin: 0 0 14px;
  font-size: 2rem;
  font-weight: 600;
}

.welcome-card p {
  margin: 8px 0;
  font-size: 1.05rem;
  line-height: 1.45;
}

.welcome-card .privacy {
  margin-top: 14px;
  color: #55717b;
  font-size: 0.9rem;
}

#start {
  margin-top: 22px;
  border: 0;
  border-radius: 999px;
  padding: 13px 24px;
  background: #26a9d1;
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}

#start:hover { background: #168db4; }