* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
   font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    background-color: #fff8f0; 
    color: #4b3a25;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background-color: #fdfcf9;
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 10;
}

.header nav ul {
  display: flex;
  align-items: center;
  gap: 32px;           
  list-style: none;
  padding: 0;
  margin: 0;
}

.header nav ul li {
  margin: 0;            
}

/* ナビ全体 */
.header nav ul li a {
  font-family: 'Zen Antique', serif;
  font-size: 1rem;
  letter-spacing: 0.08em;
  color: #5b4b35;
  text-decoration: none;
  position: relative;
  padding: 6px 0;
  transition: color 0.3s ease;
}

.header nav ul li a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0%;
  height: 2px;
  background-color: #5b4b35;
  transition: width 0.3s ease;
}



.header nav ul li a:hover::after {
  width: 100%;
}

.header .logo {
  font-family: 'Zen Antique', serif;
  font-size: clamp(1.5rem, 4vw, 1.8rem);
  letter-spacing: 0.1em;
  color: #5b4b35;
}

.hamburger {
  display: none;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  z-index: 20;
}

.hamburger span {
  display: block;
  height: 2px;
  background-color: #5b4b35;
  margin: 6px 0;
  transition: 0.3s;
}





/* ------------------------------
   HERO セクション
------------------------------ */
.dogrun-hero{
  position: relative;
  width: 100%;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url('../images/dogrun_hero.png');
  background-size: cover;
  
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}

.dogrun-hero-overlay{
  position: absolute;
  inset: 0; 
  background: linear-gradient(180deg, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0.35) 60%, rgba(0,0,0,0.15) 100%);
  z-index: 1;
}

.dogrun-hero h1{
  position: relative;
  z-index: 2;
  font-family: 'Zen Antique', serif;
  color: #fff;
  font-size: clamp(2.4rem, 6vw, 4rem);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-align: center;
  padding: 12px 20px;
  text-shadow: 0 6px 24px rgba(0,0,0,0.45);
}

/* ------------------------------
   コンテンツ領域
------------------------------ */
.dogrun-content{
  max-width: var(--max-width);
  margin: 40px auto 80px auto;
  padding: 30px 5%;
  background: transparent; /* ページ背景と同系統に */
}

.dogrun-content h2{
  font-family: 'Zen Antique', serif;
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 18px;
}

.dogrun-content p{
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--muted);
  margin-bottom: 18px;
}

.dogrun-content h3{
  font-family: 'Zen Antique', serif;
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 18px;
}

/* ------------------------------
   ギャラリー
------------------------------ */
.dogrun-gallery{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 30px 0 40px 0;
}

.dogrun-gallery img{
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 10px 24px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* ------------------------------
   ルールリスト
------------------------------ */
.dogrun-rules{
  list-style: none;
  margin-top: 12px;
  padding-left: 0;
  display: grid;
  gap: 12px;
}

.dogrun-rules li{
  padding-left: 34px;
  position: relative;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--muted);
}


/* ------------------------------
  フッター
------------------------------ */
.site-footer {
    padding: 40px 20px;
    text-align: center;
    background-color: #5b4b35;
    color: #fff;
}

.site-footer p {
    margin-top: 12px;
    font-size: 0.9rem;
    opacity: 0.8;
}

header .logo{ white-space: nowrap; }

.site-footer{ margin-top: 40px; }


@media (max-width: 768px) {
    header {
    width: 100%;
    height: 50px;
    position: fixed;
    padding: 0 16px;
    display: flex;
    z-index: 1000;
    justify-content: space-between;
    }

  .header .logo {
        font-size: 12px;
        line-height: 1;
        white-space: nowrap;
    }
  
    nav ul {
      flex-direction: column;
      gap: 24px;
    }

  nav.active {
      display: block;
    }

    .hamburger {
      display: block;
      align-items: center;
      justify-content: center;
      width: 22px;
      height: 50px;
    }

    .hamburger span {
      margin: 4px 0;
      transition: transform 0.3s ease, opacity 0.3s ease;
    }

    .hamburger.active span:nth-child(1) {
      transform: translateY(6px) rotate(45deg);
    }

    .hamburger.active span:nth-child(2) {
      opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
      transform: translateY(-6px) rotate(-45deg);
    
    }

    nav {
      position: absolute;
      top: 100%;
      left: 0;
      width: 100%;
      background: #fdfcf9;
      display: none;
      padding: 24px 0;
      box-shadow: 0 20px 40px rgba(0,0,0,0.08);
    }
  .dogrun-hero {
    background-position: center;
    background-size: cover;
    height: 120px;
    box-sizing: border-box;
    }

  .dogrun-hero h1 {
        font-size: 1.8rem;
        text-align: center;
    }
  
  .dogrun-content {
    margin: 20px auto 40px auto;
    padding: 20px 4%;
}
  .dogrun-content h2 {
        font-size: 1.2rem;
        text-align: center;
    }
  
  .dogrun-content h3 {
        font-size: 1.1rem;
        text-align: center;
    }
  
  .dogrun-content p {
        font-size: 0.9rem;
        line-height: 1.7;
        margin: 0 12px;
    }
  
  .dogrun-gallery {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
  
  .dogrun-gallery img {
        height: 105px;
    }
  
  .dogrun-rules li {
        font-size: 0.95rem;
        line-height: 1.5;
        padding-left: 10px;
    }
  
  :root {
    --slide-height: 28vh;
  }
}