/* ============================================================
   ホスピタクリーンさとう｜実例ギャラリー 共有スタイル
   方向A（空×紺×太陽橙）固定。トップページ src/index.html と同系。
   ※本ファイルは各ギャラリー下層ページ（src/gallery/*.html）が読み込む
============================================================ */
:root{
  --paper:#f2f8fd; --paper-2:#e3eff9; --card:#ffffff;
  --ink:#1d2b3a; --muted:#5b7186;
  --navy:#16395c; --navy-2:#0e2a47;
  --main:#0c80c4; --main-d:#0a6aa3;
  --accent:#f5a31b; --accent-d:#d88a07;
  --green:#06c755; --green-d:#05a847;
  --line-c:#cfe2f0; --on-navy:#eaf3fb; --on-navy-s:#a9c0d5;
  --r:16px;
  --display:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  --body:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  --shadow:0 22px 50px -22px rgba(14,42,71,.28);
  --shadow-sm:0 12px 28px -16px rgba(14,42,71,.22);
  --maxw:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; font-family:var(--body); color:var(--ink);
  background:var(--paper); letter-spacing:.02em; line-height:1.9;
  line-break:strict; font-size:15.5px;
}
img{max-width:100%; display:block}
a{color:inherit; text-decoration:none}
button{font:inherit}
.container{width:min(var(--maxw),calc(100% - 44px)); margin:0 auto}

/* ---- ヘッダー ---- */
.g-header{position:sticky; top:0; z-index:30; background:rgba(255,255,255,.92);
  backdrop-filter:saturate(1.2) blur(10px); border-bottom:1px solid var(--line-c)}
.g-header-inner{min-height:70px; display:flex; align-items:center; gap:16px; justify-content:space-between}
.g-brand img{height:52px; width:auto; display:block}
.g-back{display:inline-flex; align-items:center; gap:7px; font-weight:700; font-size:13.5px;
  color:var(--navy); padding:9px 15px; border:1.5px solid var(--line-c); border-radius:999px;
  background:#fff; transition:.2s}
.g-back:hover{border-color:var(--main); color:var(--main)}
.g-back .ic{width:15px; height:15px}
.g-header-cta{display:inline-flex; align-items:center; gap:8px; font-weight:800; font-size:13.5px;
  color:#fff; background:var(--green); padding:10px 17px; border-radius:999px; transition:.2s}
.g-header-cta:hover{background:var(--green-d)}
.g-header-cta .ic{width:16px; height:16px}
.g-headrow{display:flex; align-items:center; gap:10px}

/* ---- イントロ ---- */
.g-intro{padding:44px 0 8px}
.g-breadcrumb{font-size:12.5px; color:var(--muted); margin:0 0 16px; display:flex; gap:8px; flex-wrap:wrap; align-items:center}
.g-breadcrumb a:hover{color:var(--main); text-decoration:underline}
.g-breadcrumb .sep{opacity:.5}
.g-kicker{display:inline-block; font-size:12px; font-weight:800; letter-spacing:.14em;
  color:var(--main); background:var(--paper-2); padding:5px 13px; border-radius:999px; text-transform:uppercase}
.g-no{display:inline-block; font-family:"Zen Kaku Gothic New"; font-weight:900; font-size:12px;
  color:var(--accent-d); letter-spacing:.1em; margin-left:8px}
.g-title{font-family:var(--display); font-weight:900; font-size:clamp(24px,4.6vw,38px);
  line-height:1.32; margin:14px 0 12px; color:var(--navy)}
.g-lead{color:var(--muted); max-width:660px; margin:0; font-size:15px}
.g-count{margin-top:14px; font-size:12.5px; color:var(--muted)}
.g-count b{color:var(--navy)}

/* ---- 注記バー（実例の但し書き） ---- */
.g-note{margin:22px 0 0; padding:12px 16px; background:#fff; border:1px solid var(--line-c);
  border-left:4px solid var(--accent); border-radius:10px; font-size:12.5px; color:var(--muted); line-height:1.8}

/* ---- ギャラリーグリッド ---- */
.g-section{padding:26px 0 54px}
.g-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
.g-item{position:relative; margin:0; border-radius:var(--r); overflow:hidden; background:var(--card);
  box-shadow:var(--shadow-sm); cursor:zoom-in; border:1px solid var(--line-c)}
.g-item img{width:100%; height:100%; object-fit:cover; aspect-ratio:4/3; transition:transform .5s cubic-bezier(.2,.7,.3,1)}
.g-item:hover img{transform:scale(1.05)}
.g-item figcaption{position:absolute; left:0; right:0; bottom:0; padding:22px 12px 10px 12px;
  background:linear-gradient(transparent, rgba(10,26,44,.82)); color:#fff; font-size:12px; font-weight:700; letter-spacing:.02em}
.g-item .state{position:absolute; top:10px; left:10px; font-size:10.5px; font-weight:800; letter-spacing:.08em;
  padding:3px 9px; border-radius:999px; color:#fff}
.state-before{background:rgba(179,84,30,.94)}
.state-after{background:rgba(6,150,90,.94)}
.state-process{background:rgba(12,128,196,.94)}

/* ---- ビフォーアフター 2枚組 ---- */
.ba-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:22px}
.ba-card{background:var(--card); border-radius:var(--r); overflow:hidden; box-shadow:var(--shadow-sm); border:1px solid var(--line-c)}
.ba-pair{display:grid; grid-template-columns:1fr 1fr; gap:2px; position:relative; background:var(--line-c)}
.ba-pair figure{margin:0; position:relative; cursor:zoom-in}
.ba-pair img{width:100%; aspect-ratio:1/1; object-fit:cover}
.ba-pair .tag{position:absolute; top:9px; left:9px; font-size:10.5px; font-weight:800; letter-spacing:.06em;
  color:#fff; padding:3px 9px; border-radius:999px}
.ba-pair .tag.b{background:rgba(179,84,30,.95)}
.ba-pair .tag.a{background:rgba(6,150,90,.95)}
.ba-pair .arrow{position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
  width:38px; height:38px; border-radius:50%; background:#fff; color:var(--navy); box-shadow:var(--shadow-sm);
  display:grid; place-items:center; font-weight:900; font-size:17px; z-index:2}
.ba-body{padding:15px 17px 18px}
.ba-body .ctag{display:inline-block; font-size:11px; font-weight:800; color:var(--main);
  background:var(--paper-2); padding:3px 11px; border-radius:999px; margin-bottom:8px}
.ba-body h3{margin:0 0 6px; font-size:16px; color:var(--navy); font-weight:900; line-height:1.4}
.ba-body p{margin:0; font-size:13px; color:var(--muted); line-height:1.8}
.ba-single .ba-pair{grid-template-columns:1fr}
.ba-single .ba-pair img{aspect-ratio:auto; height:auto; object-fit:contain; background:var(--paper)}

/* ---- 末尾CTA ---- */
.g-cta{background:var(--navy); color:var(--on-navy); border-radius:var(--r); padding:34px 26px; text-align:center; margin:8px 0 54px}
.g-cta h2{margin:0 0 8px; font-size:clamp(19px,3vw,25px); font-weight:900; color:#fff}
.g-cta p{margin:0 auto 18px; max-width:520px; font-size:14px; color:var(--on-navy-s)}
.g-cta-row{display:flex; gap:12px; justify-content:center; flex-wrap:wrap}
.g-btn{display:inline-flex; align-items:center; gap:9px; font-weight:800; padding:13px 24px; border-radius:999px; transition:.2s; font-size:14.5px}
.g-btn .ic{width:18px; height:18px}
.g-btn-line{background:var(--green); color:#fff}
.g-btn-line:hover{background:var(--green-d)}
.g-btn-tel{background:#fff; color:var(--navy)}
.g-btn-tel:hover{background:var(--paper-2)}
.g-btn-ghost{background:transparent; color:#fff; border:1.6px solid rgba(255,255,255,.4)}
.g-btn-ghost:hover{border-color:#fff}

/* ---- フッター ---- */
.g-footer{background:var(--navy-2); color:var(--on-navy-s); padding:34px 0; font-size:12.5px}
.g-footer .container{display:flex; flex-wrap:wrap; gap:14px 26px; align-items:center; justify-content:space-between}
.g-footer a{color:var(--on-navy)}
.g-footer a:hover{text-decoration:underline}
.g-footer-links{display:flex; gap:18px; flex-wrap:wrap}

/* ---- ライトボックス ---- */
.lb{position:fixed; inset:0; z-index:100; background:rgba(6,18,30,.92); display:none;
  align-items:center; justify-content:center; padding:24px}
.lb.is-open{display:flex}
.lb img{max-width:min(1100px,94vw); max-height:86vh; width:auto; height:auto; border-radius:8px; box-shadow:0 30px 80px rgba(0,0,0,.5)}
.lb-cap{position:absolute; left:0; right:0; bottom:20px; text-align:center; color:#eaf3fb; font-size:13px; font-weight:700; padding:0 20px}
.lb-btn{position:absolute; background:rgba(255,255,255,.14); color:#fff; border:none; width:48px; height:48px;
  border-radius:50%; cursor:pointer; display:grid; place-items:center; transition:.2s; font-size:22px; line-height:1}
.lb-btn:hover{background:rgba(255,255,255,.28)}
.lb-close{top:18px; right:18px; font-size:20px}
.lb-prev{left:14px; top:50%; transform:translateY(-50%)}
.lb-next{right:14px; top:50%; transform:translateY(-50%)}
.lb-count{position:absolute; top:24px; left:50%; transform:translateX(-50%); color:var(--on-navy-s); font-size:12.5px; font-weight:700}

/* ---- レスポンシブ ---- */
@media (max-width:900px){
  .g-grid{grid-template-columns:repeat(2,1fr); gap:12px}
  .ba-grid{grid-template-columns:1fr}
}
@media (max-width:560px){
  .g-header-inner{min-height:60px}
  .g-brand img{height:42px}
  .g-back span, .g-header-cta span{display:none}
  .g-back, .g-header-cta{padding:9px 12px}
  .g-grid{grid-template-columns:repeat(2,1fr); gap:8px}
  .g-item figcaption{font-size:10.5px; padding:18px 8px 7px 8px}
  .g-intro{padding:30px 0 4px}
  .lb-btn{width:42px; height:42px}
  .lb-prev{left:6px} .lb-next{right:6px}
}
@media (prefers-reduced-motion: reduce){
  .g-item img{transition:none}
  .g-item:hover img{transform:none}
}