/* css/styles.css - 共通スタイル */
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;background:#FFFFFF;color:#111111}
body{
  font-family:"Hiragino Mincho ProN","Yu Mincho","MS PMincho",serif;
  -webkit-font-smoothing:antialiased;
  line-height:1.8;
  -webkit-text-size-adjust:100%;
}

/* container (max 900px center) */
.container{max-width:900px;margin-left:auto;margin-right:auto;padding:16px}

/* header: title above, menu below */
.site-header{background:#FFFFFF;border-bottom:1px solid #eee;padding-top:18px;padding-bottom:10px;position:relative;z-index:60}
.brand{text-align:center;margin-bottom:12px}
.brand .main-title{font-size:20px;color:#111111;margin-bottom:6px}
.brand .sub-title{font-size:13px;color:#111111;opacity:.95}

/* nav area under title */
.nav-wrap{display:flex;align-items:center;justify-content:center;gap:12px}
.nav-toggle{display:none;background:none;border:none;width:44px;height:44px;cursor:pointer;padding:8px}
.nav-toggle .hamburger,.nav-toggle .hamburger::before,.nav-toggle .hamburger::after{
  content:"";display:block;width:22px;height:2px;background:#FFFFFF;border-radius:2px;position:relative;transition:all .2s ease}
.nav-toggle .hamburger::before{position:absolute;top:-7px}
.nav-toggle .hamburger::after{position:absolute;top:7px}

/* main-nav */
.main-nav{background:#111111}
.main-nav ul{list-style:none;display:flex;gap:8px;justify-content:center;align-items:center;padding:8px;margin:0}
.main-nav a{
  display:inline-block;padding:10px 14px;text-decoration:none;color:#FFFFFF;background:#111111;border-radius:4px;font-size:15px;
}
.main-nav a:hover,.main-nav a:focus{background:#666666}
.main-nav a.active{background:#666666}

/* For mobile: hide ul by default, show via .open */
@media(max-width:768px){
  .nav-wrap{flex-direction:column;gap:6px}
  .nav-toggle{display:inline-flex;background:#111111;border-radius:6px;align-items:center;justify-content:center}
  .nav-toggle .hamburger,.nav-toggle .hamburger::before,.nav-toggle .hamburger::after{background:#FFFFFF}
  .main-nav{width:100%;overflow:hidden;max-height:0;transition:max-height .32s ease}
  .main-nav.open{max-height:420px}
  .main-nav ul{flex-direction:column;align-items:stretch;padding:6px}
  .main-nav a{width:100%;text-align:center}
}

/* desktop ensure nav under title as full width center */
@media(min-width:769px){
  .nav-wrap{flex-direction:row;justify-content:center}
}

/* main content */
.site-main{padding:24px 0 48px;background:#FFFFFF;color:#111111}
.hero{width:100%;max-width:900px;margin:0 auto 20px;overflow:hidden;border-radius:4px}
.hero img{width:100%;height:auto;display:block;object-fit:cover}

/* text */
.lead-text{font-size:16px;letter-spacing:.02em}
.lead-text p{margin-bottom:16px}

/* slider */
.slider{position:relative;max-width:900px;margin:0 auto;overflow:hidden;border-radius:4px}
.slides-wrapper{display:flex;transition:transform .6s ease;will-change:transform}
.slide{min-width:100%;position:relative}
.slide img{width:100%;height:auto;display:block}
.caption{position:absolute;left:0;bottom:0;width:100%;padding:10px 12px;background:rgba(0,0,0,.45);color:#fff;font-size:14px}

/* nav buttons on slider */
.slider .prev,.slider .next{
  position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.35);color:#fff;border:none;font-size:26px;padding:8px 12px;cursor:pointer;border-radius:4px;z-index:10
}
.slider .prev{left:12px}.slider .next{right:12px}

/* gallery */
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:8px;align-items:start}
.gallery-item img{width:100%;height:auto;display:block;cursor:pointer;border-radius:4px;transition:transform .15s ease}
.gallery-item img:hover{transform:scale(1.04)}

/* modal */
.modal{display:none;position:fixed;left:0;top:0;width:100%;height:100%;background:rgba(0,0,0,.88);justify-content:center;align-items:center;padding:18px;z-index:200}
.modal.open{display:flex}
.modal .modal-inner{max-width:100%;max-height:100%;text-align:center}
.modal img{max-width:100%;max-height:calc(100vh - 140px);object-fit:contain}
.modal-caption{color:#fff;margin-top:10px;font-size:16px}
.modal .close{position:absolute;top:14px;right:14px;font-size:32px;color:#fff;background:none;border:none;cursor:pointer}

/* unfinished grid */
.unfinished-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.unfinished-grid img{width:100%;height:auto;display:block;border-radius:4px}

/* footer */
.site-footer{background:#666666;color:#FFFFFF;padding:18px 0}
.site-footer p{text-align:center;font-size:13px}

/* responsive tweaks */
@media(max-width:420px){
  .brand .main-title{font-size:18px}
  .brand .sub-title{font-size:12px}
  .lead-text{font-size:15px}
  .slider .prev,.slider .next{font-size:22px;padding:6px 10px}
  .unfinished-grid{grid-template-columns:1fr}
}