/* ==============================
 共通
============================== */
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: "Hiragino Sans", "Helvetica Neue", Arial, sans-serif;
}

.fadeIn { animation: fadeIn .6s ease; }
.fadeInUp { animation: fadeInUp .6s ease; }

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==============================
 index.html
============================== */
body.index-page {
  background: linear-gradient(135deg, #9be2ff, #c7f5d9);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.index-container {
  width: 92%;
  max-width: 420px;
  padding: 30px 20px;
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 12px 28px rgba(0,0,0,0.15);
  text-align: center;
}

.index-container input[type="text"] {
  width: 100%;
  padding: 13px;
  margin-top: 14px;
  border-radius: 10px;
  border: 2px solid #ddd;
  font-size: 17px;
}

.start-btn {
  width: 100%;
  padding: 12px;
  margin-top: 18px;
  border: none;
  border-radius: 12px;
  background: #4ba3ff;
  color: white;
  font-size: 18px;
}

/* ==============================
 map4.html
============================== */
body.map-page {
  background: linear-gradient(135deg, #d7efff, #e8ffef);
  padding: 20px;
}

.card {
  background: white;
  padding: 16px;
  border-radius: 18px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
  margin-bottom: 20px;
}

/* PC横並び */
.map-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
@media (min-width: 900px) {
  .map-body {
    flex-direction: row;
  }
  .member-area { width: 28%; }
  .map-area { width: 72%; }
}

/* 地図 */
#map {
  width: 100%;
  height: 500px;
  border-radius: 14px;
  box-shadow: 0 4px 18px rgba(0,0,0,0.20);
}

/* メンバー一覧 */
#memberList {
  list-style: none;
  padding: 0;
  margin: 0;
}
#memberList li {
  background: #f2f6ff;
  border-left: 5px solid #4ba3ff;
  padding: 12px;
  margin: 10px 0;
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
}

/* オンライン/オフライン丸 */
.member-icon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #4ba3ff;
  position: relative;
}

.online .member-icon::after,
.offline .member-icon::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  bottom: -3px;
  right: -3px;
  border: 2px solid white;
}
.online .member-icon::after { background: #22dd77; }
.offline .member-icon::after { background: #ff5d5d; }

/* ピンの上の名前吹き出し */
.marker-label {
  background: white;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 13px;
  border: 1px solid #ccc;
  white-space: nowrap;
}