@charset "UTF-8";

/* =========================
 ① 基本設定
========================= */
body {
  font-family: "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  line-height: 1.8;
  color: #333;
  margin: 0;
  background-color: #f2f2f2;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* =========================
 ② レイアウト
========================= */
.container {
  width: 90%;
  margin: 0 auto;
  background-color: #fff;
}

/* =========================
 ③ ヘッダー
========================= */
header {
  background-color: #52bad5;
  text-align: right;
  padding: 15px 40px;
}

.site_title {
  color: #fff;
  text-decoration: none;
  font-size: 18px;
}

/* =========================
 ④ ヒーロー
========================= */
.hero {
  position: relative;
  background-image: url("../images/立石からの諏訪湖.jpg");
  background-size: cover;
  background-position: center;
  color: #fff;
  text-align: center;
  padding: 100px 20px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
}

.hero h1,
.hero p {
  position: relative;
  z-index: 1;
}

.hero_header {
  font-size: 36px;
  letter-spacing: 4px;
}

.tagline {
  margin-top: 10px;
}

/* =========================
 ⑤ About
========================= */
.about {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 20px;
}

/* =========================
 ⑥ ギャラリー
========================= */
.gallery {
  display: flex;
  flex-wrap: wrap;
}

.thumbnail {
  width: 25%;
  padding: 10px;
}

/* =========================
 ⑦ バナー（←今回の重要箇所）
========================= */
.banner {
  background-color: #2D9AB7;
  background-image: url("../images/parallax.png");
  background-size: cover;
  padding: 80px 20px;

  display: flex;
  flex-direction: column;
  align-items: center;
}

.parallax {
  color: #fff;
  text-align: center;
  margin-bottom: 20px;
  font-size: 24px;
}

.parallax_description {
  max-width: 800px;
  margin: 0 auto;
  color: #fff;
  line-height: 1.9;
  text-align: center;
}

/* =========================
 ⑧ フッター
========================= */
footer {
  display: flex;
  flex-wrap: wrap;
}

.footer_column {
  width: 50%;
  padding: 30px;
}

.footer_banner {
  text-align: center;
  background: #B3B3B3;
  padding: 60px 20px;
  color: #fff;
}

.footer_text {
  line-height: 1.8;
}

.button {
  display: inline-block;
  margin-top: 20px;
  padding: 15px 20px;
  border: 2px solid #fff;
  color: #fff;
  text-decoration: none;
}

/* =========================
 ⑨ コピーライト
========================= */
.copyright {
  text-align: center;
  padding: 15px;
  background: #333;
  color: #fff;
}

/* =========================
 ⑩ レスポンシブ
========================= */
@media screen and (max-width: 768px) {

  .thumbnail {
    width: 100%;
  }

  .footer_column {
    width: 100%;
  }

  .hero_header {
    font-size: 24px;
  }

  .parallax {
    font-size: 18px;
  }
}


/* ギャラリー全体 */
.gallery {
  display: flex;
  flex-wrap: wrap;       /* 折り返しOK */
  margin: 0;
  padding: 0;
}

/* 各画像 */
.thumbnail {
  width: 25%;            /* PCは4分割 */
  padding: 5px;          /* 余白（お好み） */
  box-sizing: border-box;
}

/* 画像 */
.thumbnail img {
  width: 100%;
  height: auto;
  display: block;
}

/* スマホ対応 */
@media screen and (max-width: 768px) {
  .thumbnail {
    width: 100%;         /* 1列にする */
  }
}



/* フッター全体 */
footer {
  display: flex;
  flex-wrap: wrap;     /* 折り返しOK */
  gap: 20px;           /* カラム間の余白 */
  padding: 40px 20px;
}

/* 各カラム */
.footer_column {
  width: calc(50% - 10px);  /* 2カラム */
  box-sizing: border-box;
}

/* スマホ対応 */
@media screen and (max-width: 768px) {
  .footer_column {
    width: 100%;            /* 1カラム */
  }
}



.event_notice {
    background-color: #f7f7f7;
    padding: 50px 8%;
    text-align: center;
}

.event_notice h2 {
    color: #4b6b5a;
    font-size: 1.2rem;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.event_notice h3 {
    font-size: 2rem;
    line-height: 1.5;
    margin-bottom: 25px;
    color: #222;
}

.event_text {
    max-width: 900px;
    margin: 0 auto 30px;
    line-height: 1.9;
}

.event_info {
    background: #ffffff;
    max-width: 800px;
    margin: auto;
    padding: 30px;
    border-radius: 10px;
    text-align: left;
    box-shadow: 0 0 10px rgba(0,0,0,0.08);
}

.event_info p,
.event_info li {
    line-height: 1.8;
}

.event_message {
    margin-top: 30px;
    font-size: 1.1rem;
}





.event_button {
    display: inline-block;
    margin-top: 25px;
    padding: 15px 35px;
    background-color: #4b6b5a;
    color: #ffffff;
    text-decoration: none;
    border-radius: 8px;
    font-size: 1rem;
    transition: 0.3s;
}

.event_button:hover {
    background-color: #355244;
}





.event_button {
    display: inline-block;
    margin-top: 25px;
    padding: 15px 35px;
    background-color: red;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 1rem;

 transition: 0.3s;
}