:root{
  --bg:#f4f5f7; --card:#fff; --ink:#1d2330; --muted:#6b7280;
  --line:#e3e6ea; --brand:#0b5394; --brand-d:#083d6e; --accent:#e8f0f9;
  --shadow:0 1px 3px rgba(0,0,0,.08),0 4px 14px rgba(0,0,0,.06);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:"Segoe UI",Tahoma,"Sukhumvit Set","Noto Sans Thai",sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.45;
}

/* ---------- header ---------- */
#topbar{
  position:sticky;top:0;z-index:30;background:var(--brand);color:#fff;
  display:flex;align-items:center;gap:16px;padding:10px 16px;flex-wrap:wrap;
  box-shadow:0 2px 8px rgba(0,0,0,.18);
}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.logo{
  background:#fff;color:var(--brand);font-weight:800;font-size:15px;
  padding:6px 9px;border-radius:8px;letter-spacing:.5px;flex:none;
}
.brand-txt h1{font-size:16px;margin:0;font-weight:700;white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis}
.brand-txt p{font-size:11px;margin:0;opacity:.8}
.search-wrap{position:relative;flex:1;min-width:220px}
#search{
  width:100%;padding:10px 38px 10px 14px;border:0;border-radius:10px;
  font-size:15px;background:#fff;color:var(--ink);outline:none;
}
#clearSearch{
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  border:0;background:#e3e6ea;color:#555;width:24px;height:24px;
  border-radius:50%;font-size:16px;cursor:pointer;line-height:1;
}

/* ---------- byline ---------- */
#byline{
  background:var(--brand-d);color:#eaf1f8;text-align:center;
  font-size:12.5px;padding:5px 14px;line-height:1.5;
}
#byline strong{color:#fff;font-weight:700;font-size:13.5px}
.byline-org{color:#b9cfe4}

/* ---------- filters ---------- */
#filters{
  position:sticky;top:56px;z-index:20;background:var(--bg);
  display:flex;gap:8px;padding:10px 16px;overflow-x:auto;
  border-bottom:1px solid var(--line);
}
.chip{
  flex:none;border:1px solid var(--line);background:var(--card);
  color:var(--ink);padding:6px 13px;border-radius:999px;font-size:13px;
  cursor:pointer;white-space:nowrap;transition:.12s;
}
.chip .n{color:var(--muted);font-size:11px;margin-left:5px}
.chip.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.chip.active .n{color:#cfe0f1}

/* ---------- grid ---------- */
main{padding:14px 16px 60px;max-width:1500px;margin:0 auto}
.status{color:var(--muted);font-size:14px;padding:8px 2px}
.grid{
  display:grid;gap:14px;
  grid-template-columns:repeat(auto-fill,minmax(190px,1fr));
}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  overflow:hidden;cursor:pointer;box-shadow:var(--shadow);transition:.12s;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-2px);border-color:var(--brand)}
.card .thumb{
  background:#fafbfc;aspect-ratio:1/1.3;display:flex;
  align-items:center;justify-content:center;overflow:hidden;
}
.card .thumb img{width:100%;height:100%;object-fit:contain;display:block}
.card .meta{padding:8px 10px;border-top:1px solid var(--line)}
.card .code{font-weight:700;font-size:13px;color:var(--brand-d);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card .name{font-size:12px;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;min-height:32px}
.card .tag{font-size:10.5px;color:var(--muted);margin-top:3px}
mark{background:#ffe27a;color:inherit;padding:0 1px;border-radius:2px}

/* ---------- viewer ---------- */
.viewer{
  position:fixed;inset:0;z-index:100;background:#1b1f26;
  display:flex;flex-direction:column;
}
.viewer[hidden]{display:none}
.v-bar{
  display:flex;align-items:center;gap:8px;padding:8px 10px;
  background:#11151b;color:#fff;flex:none;
}
.v-title{flex:1;font-size:13px;min-width:0;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap;opacity:.92}
.v-actions{display:flex;gap:6px}
.v-btn{
  background:#2a3340;color:#fff;border:0;border-radius:8px;
  min-width:38px;height:38px;padding:0 10px;font-size:18px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;text-decoration:none;
}
.v-btn:hover{background:#3a4757}
#vClose{font-size:24px}
#vPdf{font-size:13px;font-weight:700}
.stage{
  flex:1;overflow:hidden;position:relative;touch-action:none;
}
#vImg{
  position:absolute;top:0;left:0;display:block;user-select:none;
  transform-origin:0 0;will-change:transform;
}
.v-hint{
  position:absolute;bottom:14px;left:50%;transform:translateX(-50%);
  background:rgba(0,0,0,.6);color:#fff;font-size:11.5px;
  padding:6px 12px;border-radius:999px;pointer-events:none;transition:.4s;
}
.v-hint.hide{opacity:0}

/* ---------- credit footer ---------- */
#credit{
  margin:36px auto 0;max-width:680px;text-align:center;padding:0 16px;
}
.credit-card{
  background:var(--card);border:1px solid var(--line);
  border-top:3px solid var(--brand);border-radius:12px;
  padding:22px 24px;box-shadow:var(--shadow);
}
.credit-label{font-size:12px;color:var(--muted);letter-spacing:.5px}
.credit-name{font-size:20px;font-weight:800;color:var(--brand-d);margin-top:4px}
.credit-pos{font-size:14px;color:var(--ink);margin-top:2px}
.credit-org{font-size:13px;color:var(--muted);margin-top:2px}
.credit-desc{
  font-size:13px;color:var(--ink);line-height:1.7;margin:14px auto 0;
  max-width:520px;padding-top:12px;border-top:1px solid var(--line);
}
.credit-foot{
  font-size:11px;color:var(--muted);letter-spacing:1px;
  margin:14px 0 4px;text-transform:uppercase;
}

@media(max-width:560px){
  .brand-txt p{display:none}
  .brand-txt h1{font-size:14px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}
  #filters{top:54px}
}