@charset "UTF-8";

html,
body {
  height: 100%;
  margin: 0;     
  padding: 0;
}

body {
  font-family:'kosugi maru', sans-serif;
  letter-spacing: 0.05em; /* 文字間を少し広げる */
font-style: normal;
font-weight: 400;
min-height: 100svh; /* ★スマホのvhズレ対策込み */
  display: flex;      /* ★縦に積む */
  flex-direction: column;

}

body,
h1,
h2,
h3,
ul,
li,
a,
p {
  color: #484848;
  list-style: none;
  text-decoration: none;
}

/* ボタン関連共通CSS */
*,
*:before,
*:after {
  -webkit-box-sizing: inherit;
  box-sizing: inherit;
}

/* ===== レイアウト全体 ===== */
.split-overlay {
   flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 0;
}

/* ===== 各パネル ===== */
.split-overlay__panel {
  position: relative;
  overflow: hidden;
}

/* ===== 画像 ===== */
.split-overlay__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}


/* ===== ボタン ===== */
.split-overlay__button {
  position: absolute;
  left: 50%;
  bottom: 80px;
  transform: translateX(-50%);
  z-index: 2;

  padding: clamp(16px, 4vw, 30px)
           clamp(10px, 4vw, 100px);
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.02em;

   background: linear-gradient(
    135deg,
    #f5dd5b 0%,
    #f5823c 100%);
  color: #7a2d00;            /* 白でもOK。可読性で選んで */
  border: none;
 font-size: clamp(16px, 2vw, 30px);
  box-shadow:
    0 8px 18px rgba(0, 0, 0, 0.18);


  transition: transform 160ms ease, box-shadow 160ms ease;
}

.split-overlay__button:hover {
  transform: translateX(-50%) translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
}


/* コピーライト */
.copyright  {margin: 0;
              padding: 20px;
             background-color: #b40e0e;}
.copyright p  {color: #ffffff;}

/* ===== スマホ：上下2分割 ===== */
@media (max-width: 960px) {
  .split-overlay {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 1fr;
    /* ここが重要 */
    min-height: 100svh;  /* 画面高に合わせる */
  }

  .split-overlay__panel {
    min-height: auto;    /* 50vhを消す */
  }

  .split-overlay__button {
    bottom: 22px;
  }
}