* {
  box-sizing: border-box;
}


:root {
  --green: #36AFCB;
  --dark-green: #187FA8;
  --cream: #F2FAFD;
  --text: #263B46;
}


body {
  margin: 0;
  font-family: "Noto Sans JP", "Yu Gothic", sans-serif;
  color: var(--text);
  background: var(--cream);
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
}

.site-header {
  padding: 16px 20px;
  color: white;
  background: var(--green);
  text-align: center;
}

.site-title {
  font-size: 20px;
  font-weight: bold;
  letter-spacing: 0.04em;
}

.site-header p {
  margin: 6px 0 0;
  font-size: 12px;
}

.intro {
  min-height: 65vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 28px 20px;
  text-align: center;
}

.intro h1 {
  margin: 0 0 12px;
  font-size: clamp(24px, 6vw, 36px);
  color: var(--dark-green);
}


.intro p {
  line-height: 1.8;
  white-space: nowrap;
  font-size: clamp(10px, 3.2vw, 16px);
}


#startButton {
  margin-top: 20px;
  padding: 14px 36px;
  color: white;
  background: var(--green);
  border-radius: 30px;
  font-weight: bold;
  box-shadow: 0 4px 12px #0000001a;
}

#startButton:hover {
  background: var(--dark-green);
}

.map-section {
  padding: 12px;
}

.map-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.map-tab {
  flex: 1;
  padding: 12px 8px;
  color: var(--dark-green);
  background: white;
  border: 1px solid #b8d4c3;
  border-radius: 8px;
}

.map-tab.active {
  color: white;
  background: var(--green);
}

.map-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}


.map-toolbar {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  margin-bottom: 10px;
}

.map-toolbar button {
  min-height: 34px;
  padding: 6px 8px;
  color: var(--dark-green);
  background: white;
  border: 1px solid #d6ddd7;
  border-radius: 7px;
  font-size: 13px;
  white-space: nowrap;
}

#zoomIn,
#zoomOut {
  flex: 0 0 36px;
  padding: 4px;
  font-size: 17px;
}

#resetMap,
#fullscreenButton {
  flex: 1 1 0;
  min-width: 0;
}


#map {
  width: 100%;
  height: 68vh;
  min-height: 380px;
  background: #e7e9e3;
  border: 1px solid #d6ddd7;
  border-radius: 10px;
  overflow: hidden;
}

.map-note {
  font-size: 12px;
  line-height: 1.7;
  color: #53645a;
}

footer {
  padding: 16px;
  text-align: center;
  font-size: 12px;
  color: #64736a;
}

[hidden] {
  display: none !important;
}

@media (max-width: 480px) {
  .site-title {
    font-size: 18px;
  }

  .map-section {
    padding: 8px;
  }

  #map {
    height: 65vh;
    min-height: 320px;
  }

  .map-toolbar button {
    flex: 1;
  }
}
/* 全画面表示中のレイアウト */
#mapFullscreenContainer:fullscreen {
  width: 100%;
  height: 100%;
  padding: 12px;
  background: var(--cream);
  display: flex;
  flex-direction: column;
}

/* 全画面表示中の地図 */
#mapFullscreenContainer:fullscreen #map {
  flex: 1;
  width: 100%;
  height: auto;
  min-height: 0;
}

/* 全画面表示中の説明文 */
#mapFullscreenContainer:fullscreen .map-note {
  flex-shrink: 0;
}