@charset "utf-8";

/*CSSスライドショー設定
---------------------------------------------------------------------------*/
/*１枚目*/
@keyframes slide1 {
  0% {
    opacity: 0;
  }
  15% {
    opacity: 1;
  }
  35% {
    opacity: 1;
  }
  45% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}
/*２枚目*/
@keyframes slide2 {
  0% {
    opacity: 0;
  }
  25% {
    opacity: 0;
  }
  35% {
    opacity: 1;
  }
  60% {
    opacity: 1;
  }
  70% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}
/*３枚目*/
@keyframes slide3 {
  0% {
    opacity: 0;
  }
  50% {
    opacity: 0;
  }
  60% {
    opacity: 1;
  }
  84% {
    opacity: 1;
  }
  90% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}

/*mainimg
---------------------------------------------------------------------------*/
#mainimg {
  clear: left;
  width: 100%;
  position: relative;
}
.slide1,
.slide2,
.slide3 {
  animation-duration: 30s; /*アニメーションを実行する時間。「s」は秒の事。*/
  animation-iteration-count: infinite;
  position: absolute;
  left: 0px;
  top: 0px;
  width: 100%;
  height: auto;
  animation-fill-mode: both; /*アニメーションの待機中は最初のキーフレームを維持、終了後は最後のキーフレームを維持。*/
  animation-delay: 2s; /*出現するタイミング（秒後）*/
  animation-timing-function: linear; /* ←画像と文字のフェード速度を厳密同期 */
}
.slide0 {
  position: relative;
  width: 100%;
  height: auto;
  z-index: 0;
  background-color: #f3f2f8;
}
.slide1 {
  animation-name: slide1;
}
.slide2 {
  animation-name: slide2;
}
.slide3 {
  animation-name: slide3;
}

/* キャプション */
.caption {
  position: absolute;
  display: flex;
  top: 20px;
  left: 20px;
  color: #fff;
  background: rgba(0, 0, 0, 0.25);
  padding: 10px 20px;
  border-radius: 5px;
  z-index: 100;
  pointer-events: none;
  opacity: 0; /* 初期は透明 */
}

.caption h1 {
  font-family: "BIZ UDPGothic", sans-serif;
  font-size: 1.5vw; /* 小さめ。画面幅に比例して縮小 */
  font-weight: 600;
  text-shadow: 0 0 2px rgba(0, 0, 0, 0.8);
}

.pj-name {
  margin-left: 10px;
}

.caption-s {
  font-size: 0.9vw;
  padding-right: 2em;
}
.sp-br {
  display: none;
}

/* 各スライドのキャプションは画像と同じタイミングで出す */
.caption1,
.caption2,
.caption3 {
  animation-duration: 30s;
  animation-iteration-count: infinite;
  animation-fill-mode: both;
  animation-delay: 2s;
  animation-timing-function: linear; /* ←ここを明示 */
}

.caption1 {
  animation-name: slide1;
}
.caption2 {
  animation-name: slide2;
}
.caption3 {
  animation-name: slide3;
}

#mainimg .logo {
  margin-bottom: 5px;
  padding-right: 1em;
  width: 100px;
  height: auto;
}

/* ロゴの影*/
#mainimg .logo img {
  filter: drop-shadow(3px 3px 5px rgba(0, 0, 0, 0.5)) /* 影を少し柔らかく */
    drop-shadow(7px 7px 12px rgba(0, 0, 0, 0.3)) /* 奥行き用 */ drop-shadow(-2px -2px 4px rgba(255, 255, 255, 0.4)); /* 上の光を強め */
}

/* スマホ用に調整 */
@media screen and (max-width: 800px) {
  .caption {
    top: 5px;
    left: 5px;
    padding: 10px;
    width: 78%;
  }

  .caption h1 {
    font-size: 2.7vw; /* スマホでは少し大きめに */
  }

  .caption p.caption-s {
    font-size: 1.7vw;
  }

  .pj-name {
    margin-left: 5px;
    padding-left: 0;
  }

  .logo {
    width: 70px !important;
    margin-bottom: 0;
    margin-right: 0;
  }
  .sp-br {
    display: inline; /* もしくはそのままdisplay: none;を解除 */
  }
  .pc-br {
    display: none;
}