@charset "UTF-8";
@import url('https://fonts.googleapis.com/css2?family=BIZ+UDPGothic:wght@400;900&display=swap');

:root {
    --Background: #f5f5f5;
    --ContentsBack: #ffffff;
    --NaviBack: #e0e0e0;
    --Navi01: #ff3333;
    --Navi02: #770000;
    --Text: #FFFFFF;
    --CtaBack: #e60000;
    --CtaText: #ffffff;
    --CtaBack-light: color-mix(in srgb, var(--CtaBack) 70%, white);
    --CtaBack-dark: color-mix(in srgb, var(--CtaBack) 80%, black); 
    --NaviBase: rgba(255, 255, 255, 30%);
}

body, html {
    margin: 0;
    padding: 0;
    background: var(--Background);
    width: 100%;
    height: 100%;
    font-family: "BIZ UDPGothic", serif;
    font-weight: 400;
    font-display: swap;
    font-style: normal;
}


.bg_pattern {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--Background);
  z-index: -1;
}

.Polka {
  background-image:  radial-gradient(color-mix(in srgb, var(--Background) 85%, gray) 2px, transparent 2px), radial-gradient(color-mix(in srgb, var(--Background) 85%, gray) 2px, var(--Background) 2px);
  background-size: 40px 40px;
  background-position: 0 0,20px 20px;
}

.Paper {
  background-image:
    repeating-linear-gradient(to bottom,
      transparent 25px,
      color-mix(in srgb, var(--Background) 85%, gray) 26px,  color-mix(in srgb, var(--Background) 85%, gray) 26px,
      transparent 27px,  transparent 51px, 
      color-mix(in srgb, var(--Background) 85%, gray) 52px,  color-mix(in srgb, var(--Background) 85%, gray) 52px,
      transparent 53px,  transparent 77px, 
      color-mix(in srgb, var(--Background) 85%, gray) 78px,  color-mix(in srgb, var(--Background) 85%, gray) 78px,
      transparent 79px,  transparent 103px, 
      color-mix(in srgb, var(--Background) 85%, gray) 104px,  color-mix(in srgb, var(--Background) 85%, gray) 104px,
      transparent 105px,  transparent 129px, 
      color-mix(in srgb, var(--Background) 85%, gray) 130px,  color-mix(in srgb, var(--Background) 85%, gray) 130px),
  
    repeating-linear-gradient(to right,
      transparent 25px,
      color-mix(in srgb, var(--Background) 85%, gray) 26px,  color-mix(in srgb, var(--Background) 85%, gray) 26px,
      transparent 27px,  transparent 51px, 
      color-mix(in srgb, var(--Background) 85%, gray) 52px,  color-mix(in srgb, var(--Background) 85%, gray) 52px,
      transparent 53px,  transparent 77px, 
      color-mix(in srgb, var(--Background) 85%, gray) 78px,  color-mix(in srgb, var(--Background) 85%, gray) 78px,
      transparent 79px,  transparent 103px, 
      color-mix(in srgb, var(--Background) 85%, gray) 104px,  color-mix(in srgb, var(--Background) 85%, gray) 104px,
      transparent 105px,  transparent 129px, 
      color-mix(in srgb, var(--Background) 85%, gray) 130px,  color-mix(in srgb, var(--Background) 85%, gray) 130px);
}

.container {
    max-width: calc(100svh * 9 / 16);
    height: 100dvh;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* ヘッダー */

header { 
    padding: 0; 
    display: grid;
    grid-template-columns: repeat(3 , 1fr);
    gap: 0.25rem;
    justify-content: center;
    align-items: center;
    z-index: 20;
    height: auto;
    max-width: 100%;
    width: 100%;
    flex-shrink: 0;
    background: #fff;
}

header .logo {
    padding: 1em 1.5em 1em 0.5em;
}

header .logo img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

header nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5em;
    background: var(--NaviBase);
    padding: 0.5em 0.5em;
    border-radius: 100vh;

}

header nav a {
    display: inline-block;
    height: 1.6vh;
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    background: var(--NaviBack);
    opacity: 0.5;
    text-indent: -9999px;
    filter: drop-shadow(0 0px 1px rgba(13, 0, 21, .8));
}

header nav a.active {
    background: var(--Navi01);
    opacity: 1;
}

.swiper {
    width: 100%;
    height: auto;
    margin: 0;
    padding: 0;
    flex-grow: 1;
    overflow: hidden;
    z-index: 10;
}

.swiper-wrapper {
  width: 100%;
  height: auto;
  margin: 0;
  padding: 0;
    
}
.swiper-slide {
    position: relative;
    overflow: hidden;
    background: var(--ContentsBack);
    box-sizing: border-box;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.swiper-slide img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
    pointer-events: none;
    user-select: none;
    width: 100%;
    height: auto;
}

.swiper-slide video {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
    pointer-events: none;
    user-select: none;
    width: 100%;
    height: auto;
}

.media-content {
    width: 100%;
    height: 100%;
    object-fit: cover; 
    min-width: 100%; 
    min-height: 100%;
    display: block;
}

/* フッター*/

footer {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 100%;
    z-index: 20;
    box-sizing: border-box;
}

footer .normal-footer {
    padding: 0.5em 0.75em 1em 0.75em;
}

footer .normal-footer.hide {
    display: none;
}

footer .cta-footer {
    display: block;
    color: var(--Text);
    text-align: center;
    padding: 1em 0.75em;
    background: rgba(0,0,0,0.7);
}

footer .cta-footer.hide {
    display: none;
}

footer .cta-footer .last-text {
    line-height: 1.2;
}

footer .cta-footer .last-text h2 {
    font-size: clamp(1em, 1em + (100vw - 320px) * 1 / 15.5, 1.5em);
    color: var(--CtaText);
    margin-top: 0;
}

footer .cta-btn {
    line-height: 1.6;
    position: relative;
    display: block;
    width: auto;
    height: auto;
    color: var(--CtaText);
    text-decoration: none;
    font-weight: bold;
    font-size: clamp(1em, 1em + (100vw - 320px) * 1 / 15.5, 1.5em);
    padding: 0.5em 1.75em;
    text-align: center;
    background: var(--CtaBack);
    transition: filter 0.5s ease;
    border-radius: 100vh;
    box-shadow: 0 4px 0 var(--Navi02),0 7px 14px var(--CtaBack-dark);
    cursor: pointer;
}

footer .last-slide-content .cta-btn {
    box-shadow: 0 4px 0 var(--Navi02),0 5px 10px var(--CtaBack-light);
}




footer .cta-btn::after {
    content: '≫';
    position: absolute;
    right: 0.5em;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.0em;
    line-height: 1;
    background: var(--CtaText);
    color: var(--CtaBack);
    padding: 0.15em;
    border-radius: 100vh;
}

footer .cta-btn:hover,
footer .cta-btn:active {
    filter: brightness(1.2);
    transform: translateY(4px);
    box-shadow: 0 0 0 var(--Navi01);
}

.footer-transition {
    opacity: 0;
}

.normal-footer {
    bottom: 0;
    opacity: 1;
}

.normal-footer.hide {
    opacity: 0;
    display: none;
}

.cta-footer {
    bottom: 0;
    opacity: 0;
    display: none;
}

.cta-footer.active {
    opacity: 1;
    display: block;
}

@media screen and (max-width: 320px) { /* iPhone4対策 */

    .container {
        max-width: calc(100svh * 4 / 5.3);
    }

    header, footer {
        max-width: calc(100svh * 4 / 5.3);
    }

    .swiper-slide img {
        aspect-ratio: 4 / 5.3;
        object-fit: contain;
    }

    .swiper-slide video {
        aspect-ratio: 4 / 5.3;
    }

    footer .cta-btn {
      font-size: 1em;
      padding: 0.75em 2em;
    }
    
}

/* スワイプ演出ボタン */

.next-btn {
    color:#fff;
    position:absolute;
    top: 50%;
    right: 1%;
    transform: translateX(0) translateY(-50%);
    padding: 0.5em;
    background: rgba(0,0,0,0.6);
    z-index: 20;
    height: 5%;
    width: auto;
    aspect-ratio: 1 / 1;
    border-radius: 100vh;
    cursor: pointer;
    user-select: none;
    opacity: 1; /* 初期状態は表示 */
    
    /* アニメーションの適用 */
    animation: swipe-and-fade 3.5s infinite ease-in-out;
}

@keyframes swipe-and-fade {
    0%   { transform: translateY(-50%) translateX(15px); opacity: 1; }
    25%  { transform: translateY(-50%) translateX(-3px); opacity: 1; }
    50%  { transform: translateY(-50%) translateX(15px); opacity: 1; }
    75%  { transform: translateY(-50%) translateX(-3px); opacity: 1; }
    100% { transform: translateY(-50%) translateX(15px); opacity: 1; }
}

@media screen and (max-width: 768px) {
    .next-btn {
        animation: swipe-and-fade 6s infinite ease-in-out;
    }

    @keyframes swipe-and-fade {
        0%   { transform: translateY(-50%) translateX(15px); opacity: 1; }
        20%  { transform: translateY(-50%) translateX(-3px); opacity: 1; }
        40%  { transform: translateY(-50%) translateX(-3px); opacity: 0; }
        45%  { transform: translateY(-50%) translateX(15px); opacity: 0; }
        50%   { transform: translateY(-50%) translateX(15px); opacity: 1; }
        70%  { transform: translateY(-50%) translateX(-3px); opacity: 1; }
        90%  { transform: translateY(-50%) translateX(-3px); opacity: 0; }
        95%  { transform: translateY(-50%) translateX(15px); opacity: 0; }
        100% { transform: translateY(-50%) translateX(15px); opacity: 1; }
    }
}

.next-btn svg {
    height: 100%;
    width: 100%;
}

.pcImg {
    display: block;
}

.spImg {
    display: none;
}

/* フェードアウト用 */
.fade-out {
    opacity: 0;
    transition: opacity 0.6s ease; 
}

@media screen and (max-width: 768px) {
    .container {
        _max-width: 100%;
    }

    header {
        max-width: 100%;
    }

    footer {
        _max-width: 100%;
    }

    .pcImg {
        display: none;
    }

    .spImg {
        display: block;
    }
}


/* ローダー */
body.loading {
  overflow: hidden;
}

#loader {
  position: fixed;
  inset: 0;
  background: var(--Background);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#loader.hide {
  opacity: 0;
  visibility: hidden;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 5px solid var(--Background);
  border-top-color: var(--Text);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}