body{
    margin: 0;
    font-family: sans-serif;
    background-color:steelblue;
    color: #111;
    text-align: center;
    padding-top: 70px;
    z-index: 1000;
}
.hero{
    position: relative;
    overflow: hidden;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(
        rgba(0,0,0,0.5),
        rgba(0,0,0,0.7)
    );
    background-image: url("sky.jpg");
    background-size: cover;
    background-position: center;
}
.hero h1{
    font-size: 4rem;
    margin-bottom: 10px;
}
.hero p{
    font-size: 1.2rem;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 18px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-sizing: border-box;
    z-index: 1000;
    list-style: none;


    background-color: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);

    border-bottom: 1px solid #ddd;
}

.menu-btn {
    display: none;
    font-size: 35px;
    cursor: pointer;
    color: dodgerblue;
}

@media (max-width:768px) {

    .site-header{
        height: 90px;
    }

    .nav-menu{
        display: none;
        list-style: none;

        position: absolute;
        top: 100%;
        right: 0;
        left: auto;
        width: 220px;
        z-index: 9999;

        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(10px);

        border-top: 1px solid #ddd;
        border-bottom: 1px solid #ddd;

        padding: 25px 0;

        flex-direction: column;
        align-items: center;
        gap: 18px;
    }

    nav ul{
        display: flex;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        margin: 0;
        padding: 15px 0;
        gap: 0;
    }

    nav ul li{
        display: block;
        width: 100%;
        margin: 0;
    }

    .nav-menu.active{
        display: flex;
    }

    .nav-menu a{
        font-size: 16px;
        white-space: nowrap;
    }

    .menu-btn{
        display: block;
    }
}

.bg-video {
    position: absolute;

    top: 0;
    left: 0;

    width: 100%;
    height: 100%;

    object-fit: cover;

    z-index: -1;
}

.hero-content {
    height: 100%;

    display: flex;
    flex-direction: column;

    justify-content: center;
    align-items: center;
}

.main-logo {
    width: 600px;
    max-width: 80%;
}

.logo {
    font-family: 'Montserrat' , sans-serif;
    font-weight: 800;
    letter-spacing: 4px;
}



nav a {
    color: #222;
    text-decoration: none;
    margin-left: 24px;
    font-weight: bold;
    font-size: 14px;
}

.hero-sub {
    color: #f5c400;
    font-weight: bold;
    letter-spacing: 4px;
}

section {
    padding: 100px 20px;
}

section h2 {
    font-size: 48px;
    color: #f5c400;
}

.news-section{
    padding: 100px 20px;
    background-color: #fff;
    color: #222;
}
.news-section h2 {
    font-size: 48px;
    text-align: center;
    margin-bottom: 5px;
}
.section-subtitle{
    text-align: center;
    margin-bottom: 50px;
    color: #777;
}
.news-list {
    max-width: 900px;
    margin: 0 auto;

    max-height: 450px;
    overflow-y: auto;
    padding-right: 15px;
}
.news-item {
    border-top: 1px solid #ddd;
    padding: 30px 0;
    text-align: center;
}
.news-item:last-child {
    font-weight: bold;
    color: #0a8fdc;
    margin-bottom: 8px;
    border-bottom: 1px solid #ddd;
}
.news-date {
    color: #0a8fdc;
    font-weight: bold;
}
.news-item h3 {
    color: #222;
    font-size: 22px;
    margin-bottom: 10px;
}
.news-item p:not(.news-date) {
    color: #333;
    line-height: 1.8;
}

.new-badge{
    display: inline-block;
    margin-left: 10px;
    padding: 3px 8px;
    background: #ff4d4d;
    color: #fff;
    font-size: 12px;
    font-weight: bold;
    border-radius: 20px;
}

.event-info{
    padding: 100px 20px;
}
.info-container{
    display: grid;
    grid-template-columns: repeat(2,1fr);
    gap: 30px;
    max-width: 900px;
    margin: auto;
}
.info-card{
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(10px);

    border: 1px solid rgba(255,255, 255, 0.8);
    border-radius: 24px;

    padding: 35px 20px;
    text-align: center;

    box-shadow: 0 8px 25px rgba(0,0, 0, 0.8);
}
.info-icon {
    font-size: 44px;
    color: #0a8fdc;
    margin-bottom: 18px;
}
@media (max-width:768px){
    .info-container{
        grid-template-columns: 1fr;
    }
    .logo{
        font-size: 24px;
        letter-spacing: 3px;
    }
}

.sns {
    padding: 100px 20px;
    text-align: center;
}
.sns-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 50px;
}
.sns-links a {
    text-decoration: none;
    color: white;
    background: #0a8fdc;
    font-size: 20px;
    font-weight: bold;
    padding: 15px 35px;
    border-radius: 50px;
    transition: 0.3s;
    display: inline-block;
    min-width: 170px;
}
.sns-links a:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.partners {
    padding: 100px 20px;
    color: #222;
}
.partners-list {
    max-width: 900px;
    margin: 0 auto;
    border-top: 1pz solid #ddd;
}
.partner-row {
    padding: 30px 0;
    border-bottom: 1px solid #ddd;
    text-align: center;
}
.partner-row h3 {
    color:#111;
    font-size: 18px;
    letter-spacing: 2px;
    margin-bottom: 12px;
}
.partner-row p {
    font-size: 18px;
    line-height: 1.8px;
}

.gateLOGO{
    width: 150px;
}
.nhflogo {
    width: 150px;
}

html{
    scroll-behavior: smooth;
}

.news-section,
.eventinfo,
.about,
.artist{
    scroll-margin-top: 100px;
}

.fade-in{
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.show{
    opacity: 1;
    transform: translateY(0);
}

.site-footer {
  padding: 60px 20px 30px;
  text-align: center;
  background: #0a8fdc;
  color: white;
}

.footer-logo {
  font-family: 'Montserrat', sans-serif;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 4px;
  margin-bottom: 25px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 25px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.footer-links a {
  color: white;
  text-decoration: none;
  font-size: 14px;
  font-weight: bold;
}

.copyright {
  font-size: 12px;
  opacity: 0.8;
}

.news-toggle {
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  text-align: center;
  font-family: inherit;
}

.news-title {
  display: block;
  font-size: 22px;
  font-weight: bold;
  color: #222;
  margin-top: 10px;
}

.news-detail {
  display: none;
  margin-top: 15px;
  color: #333;
  line-height: 1.8;
  font-weight: 400;
}

.news-item.open .news-detail {
  display: block;
}

.news-toggle{
    width:100%;
    display:flex;
    justify-content:space-between;
    align-items:center;

    background:none;
    border:none;

    cursor:pointer;

    padding:15px 0;

    text-align:left;
}

.news-left{
    display:flex;
    flex-direction:column;
}

.news-plus{
    font-size:32px;
    font-weight:bold;
    color:#0a8fdc;

    transition:.3s;
}

.about p{
    max-width: 800px;
    margin: 40px auto;
    color: #fff;
    font-size: 18px;
    line-height: 2;
    text-align: left;
}
.about h2::after{
    content: "";
    display: block;
    width: 70px;
    height: 4px;
    background: #ffd700;
    margin: 15px auto 0;
}

.event-date {
  line-height: 1;
  margin-top: -150px;
  z-index: 10;
  text-align: center;
  color: #222;
  background: transparent;
  position: relative;
}

.event-year {
  display: block;
  font-size: 56px;
  font-weight: 900;
  letter-spacing: 1px;
  color: #0077c8;
  text-shadow:
    2px 2px 0 #fff,
    3px 3px 0 #222;
}

.event-main-date {
  font-size: 128px;
  font-weight: 900;
  letter-spacing: -3px;
  color: #222;
  text-shadow:
    2px 2px 0 #fff,
    4px 4px 0 #0077c8;
}

.event-day {
  font-size: 0.45em;
  margin-left: 4px;
  letter-spacing: -1px;
}

.event-place{
    margin-top:15px;
    font-size:44px;
    font-weight:700;
    letter-spacing:1px;
}

.event-time{
    margin-top:8px;
    font-size:36px;
    font-weight:500;
    letter-spacing:2px;
    color:#666;
}

@media (max-width: 600px) {
  .event-place {
    font-size: 32px;
    letter-spacing: 0;
    white-space: nowrap;
    text-align: center;
  }

  .event-time {
    font-size: 28px;
    line-height: 1.4;
    margin-top: 18px;
  }
}

.footer-contact {
    margin-top: 12px;
    font-size: 15px;
    color: #fff;
}

.footer-contact a {
    color: #fff;
    text-decoration: none;
    transition: 0.3s;
}

.footer-contact a:hover {
    color: #f7c600;
}

nav ul {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  list-style: none;
  margin: 0;
  padding: 0;
}

nav ul li {
  list-style: none;
}

nav ul li a {
  text-decoration: none;
  color: #222;
  font-weight: 700;
}

@media (max-width: 600px) {
  .event-date {
    margin-top: -150px;
    padding: 0 15px;
  }

  .event-year {
    font-size: 40px;
  }

  .event-main-date {
    font-size: 80px;
    letter-spacing: -3px;
  }

  .event-day {
    font-size: 0.38em;
  }

  .event-place {
    font-size: 36px;
    white-space: nowrap;
  }

  .event-time {
    font-size: 28px;
    line-height: 1.4;
  }
}

.foodpic {
    text-align: center;
    display: block;
    width: 70%;
    max-width: 650px;
    margin: 30px auto 0;
}

@media (max-width: 768px) {
    .foodpic{
        width: 90%;
        max-width: none;
    }
}

.freeMA {
    text-align: center;
    display: block;
    width: 70%;
    max-width: 650px;
    margin: 30px auto 0;
}

@media (max-width: 768px) {
    .freeMA{
        width: 90%;
        max-width: none;
    }
}

.satsueistuff {
    text-align: center;
    display: block;
    width: 70%;
    max-width: 650px;
    margin: 30px auto 0;
}

@media (max-width: 768px) {
    .satsueistuff{
        width: 90%;
        max-width: none;
    }
}

.dai1dan {
    text-align: center;
    display: block;
    width: 70%;
    max-width: 650px;
    margin: 30px auto 0;
}

@media (max-width: 768px) {
    .dai1dan{
        width: 90%;
        max-width: none;
    }
}

.artist {
  padding: 60px 5%;
}

.artist h2 {
  text-align: center;
  margin-bottom: 30px;
}

.artist-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.artist-card {
  text-align: center;
}

.artist-card img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
}

.artist-card p {
  margin-top: 10px;
  font-size: 18px;
  font-weight: bold;
  color: white;
}

@media screen and (max-width: 768px) {
  .artist {
    padding: 40px 16px;
  }

  .artist-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px 12px;
  }

  .artist-card p {
    font-size: 14px;
    margin-top: 8px;
  }
}

@media screen and (max-width: 768px) {

  /* 企業・店舗紹介を1行にする */
  .intro h2 {
    white-space: nowrap;
    font-size: 32px;
  }

  /* フッターのメニューを1行に並べる */
  footer nav ul {
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
    gap: 20px;
  }

  footer nav li {
    white-space: nowrap;
  }

  footer nav a {
    font-size: 15px;
  }
}