* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  background: #1a2238;
}

body {
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  background: linear-gradient(160deg, #1a2238 0%, #2d3a5f 100%);
  color: #eef1f8;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.header {
  text-align: center;
  padding: 24px 16px 12px;
}

.header h1 {
  font-size: 1.6rem;
  letter-spacing: 0.05em;
}

.subtitle {
  color: #a8b3d0;
  font-size: 0.9rem;
  margin-top: 4px;
}

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px 24px;
  flex: 1;
}

/* 天気カード */
.weather-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 14px 16px;
  backdrop-filter: blur(4px);
}

.card-label {
  font-size: 0.78rem;
  color: #a8b3d0;
  margin-bottom: 6px;
}

.card-value {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
}

.card-value .unit {
  font-size: 0.9rem;
  font-weight: 400;
  margin-left: 2px;
  color: #a8b3d0;
}

.card-sub {
  font-size: 0.8rem;
  color: #a8b3d0;
  margin-top: 4px;
}

/* 1時間ごとの予測天気 */
.forecast-section {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 16px;
}

.forecast-strip {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  -webkit-overflow-scrolling: touch;
}

.forecast-strip::-webkit-scrollbar {
  height: 6px;
}

.forecast-strip::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.25);
  border-radius: 3px;
}

.fc-card {
  flex: 0 0 auto;
  min-width: 64px;
  text-align: center;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  padding: 8px 6px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.fc-card:hover {
  background: rgba(255, 255, 255, 0.16);
}

.fc-card.selected {
  border-color: #e63946;
  background: rgba(230, 57, 70, 0.22);
}

.fc-card.now {
  border-color: #ffd166;
}

.fc-time {
  font-size: 0.72rem;
  color: #a8b3d0;
}

.fc-day {
  font-size: 0.62rem;
  color: #7f8bab;
}

.fc-emoji {
  font-size: 1.4rem;
  line-height: 1.5;
}

.fc-temp {
  font-size: 0.8rem;
  font-weight: 700;
}

.fc-pop {
  font-size: 0.65rem;
  color: #74b9ff;
}

/* コントロール */
.controls {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 16px;
  display: grid;
  gap: 14px;
}

.control-label {
  font-size: 0.85rem;
  color: #a8b3d0;
  margin-bottom: 8px;
}

.control-label span {
  color: #ffd166;
  font-weight: 700;
}

.altitude-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.alt-btn {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #eef1f8;
  border-radius: 20px;
  padding: 7px 14px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.alt-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

.alt-btn.active {
  background: #e63946;
  border-color: #e63946;
  font-weight: 700;
}

.now-btn {
  background: rgba(255, 209, 102, 0.15);
  border-color: #ffd166;
  color: #ffd166;
  font-weight: 700;
}

.now-btn:hover {
  background: rgba(255, 209, 102, 0.3);
}

#timeSlider {
  width: 100%;
  accent-color: #e63946;
}

.slider-hint {
  font-size: 0.72rem;
  color: #7f8bab;
  margin-top: 4px;
}

/* 地図 */
.map-section {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

#map {
  height: 480px;
  width: 100%;
  background: #dfe6ee;
}

.map-legend {
  background: rgba(255, 255, 255, 0.08);
  padding: 10px 16px;
  font-size: 0.8rem;
  color: #a8b3d0;
}

.map-legend strong {
  color: #ffd166;
}

.legend-arrow {
  color: #e63946;
  font-size: 1rem;
  margin-right: 4px;
}

/* 風向き矢印マーカー */
.wind-arrow-icon {
  pointer-events: none;
}

.wind-arrow-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.45));
}

.wind-arrow-svg {
  transition: transform 0.5s ease;
  transform-origin: center center;
}

.wind-arrow-label {
  margin-top: 2px;
  background: rgba(26, 34, 56, 0.85);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 10px;
  white-space: nowrap;
}

.footer {
  text-align: center;
  padding: 14px;
  font-size: 0.75rem;
  color: #7f8bab;
}

.footer a {
  color: #a8b3d0;
}

.footer-site {
  margin-top: 6px;
}

.footer-site a {
  color: #ffd166;
  font-weight: 700;
  text-decoration: none;
}

.footer-site a:hover {
  text-decoration: underline;
}

@media (max-width: 600px) {
  #map {
    height: 380px;
  }
  .card-value {
    font-size: 1.25rem;
  }
}