:root { --page-bg:#07080b; --panel:#111318; --panel-hover:#191c23; --text:#fff; --muted:#a6a8af; --line:rgba(255,255,255,.11); --accent:#ffd700; --font:'Noto Sans Thai',sans-serif; }
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{width:100%;margin:0;overflow-x:clip}
body{min-height:100vh;background:var(--page-bg);color:var(--text);font-family:var(--font)}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
main{width:min(1100px,calc(100% - 32px));margin:0 auto;padding:105px 0 100px}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.database-hero{padding:82px 0 62px;text-align:center}
.database-hero h1,.category-header h1,.reading-column h1{margin:0;font-size:clamp(2.6rem,7vw,5.1rem);font-weight:800;line-height:1.15}
.database-hero>p,.category-header>p{max-width:680px;margin:14px auto 0;color:var(--muted);font-size:1.05rem;line-height:1.8}
.search-box{display:flex;align-items:center;width:min(680px,100%);margin:34px auto 0;padding:8px 8px 8px 18px;border:1px solid var(--line);border-radius:14px;background:var(--panel);text-align:left}
.search-box:focus-within{border-color:var(--accent);background:#151820}
.search-box>.material-symbols-outlined{color:var(--muted)}
.search-box input{min-width:0;flex:1;padding:10px 12px;border:0;outline:0;background:transparent;color:var(--text)}
.search-box button{padding:10px 18px;border:0;border-radius:9px;background:var(--accent);color:#090a0d;font-weight:700;cursor:pointer}
.database-content{padding:44px 0;border-top:1px solid var(--line)}
.content-heading{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:26px}
.content-heading h2{margin:0;font-size:clamp(1.6rem,4vw,2.35rem)}
.article-count{flex:none;color:var(--muted);font-size:.9rem;font-weight:600}
.category-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.category-card{display:flex;align-items:center;gap:16px;min-height:120px;padding:20px;border:1px solid var(--line);border-radius:14px;background:var(--panel);transition:border-color .2s,background .2s,transform .2s}
.category-card:hover,.category-card:focus-visible,.article-row:hover,.article-row:focus-visible{border-color:var(--accent);background:var(--panel-hover)}
.category-card:hover{transform:translateY(-2px)}
.category-card:focus-visible,.article-row:focus-visible,.back-link:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.category-icon{width:52px;height:52px;flex:none;display:grid;place-items:center;border:1px solid rgba(255,215,0,.35);border-radius:12px;background:rgba(255,215,0,.08);color:var(--accent)}
.category-copy{min-width:0;flex:1;display:flex;flex-direction:column}
.category-copy strong{font-size:1.1rem}
.category-copy small{margin-top:3px;color:var(--muted)}
.category-copy em{margin-top:9px;color:var(--accent);font-size:.78rem;font-style:normal}
.card-arrow{flex:none;color:var(--muted);font-size:1.25rem}
.article-list{display:grid;gap:10px}
.article-row{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:88px;padding:18px 22px;border:1px solid var(--line);border-radius:13px;background:var(--panel);transition:border-color .2s,background .2s}
.article-row>span:first-child{min-width:0;display:flex;flex-direction:column}
.article-row small{margin-bottom:3px;color:var(--accent)}
.article-row strong{font-size:1.05rem}
.article-row p{margin:4px 0 0;color:var(--muted);font-size:.9rem}
.article-row>.material-symbols-outlined{flex:none;color:var(--muted)}
.empty-search{padding:50px 20px;border:1px solid var(--line);border-radius:16px;background:var(--panel);text-align:center}
.empty-search>.material-symbols-outlined{color:var(--muted);font-size:2.5rem}
.empty-search h2{margin:12px 0 4px;font-size:1.3rem}
.empty-search p{margin:0;color:var(--muted)}
.category-page,.article-page{padding-top:155px}
.back-link{display:inline-flex;align-items:center;gap:8px;margin-bottom:42px;color:var(--muted);font-weight:600}
.back-link:hover{color:var(--accent)}
.category-header{padding:12px 0 60px;text-align:center}
.category-header h1{font-size:clamp(2.4rem,6vw,4.6rem)}
.article-page{width:min(820px,calc(100% - 32px))}
.reading-column{width:100%}
.reading-column h1{font-size:clamp(2.35rem,6vw,4.4rem)}
.article-lead{margin:16px 0 0;color:var(--muted);font-size:1.15rem;line-height:1.85}
.article-meta{margin-top:24px;color:#7f828a;font-size:.85rem}
.reading-column>hr{margin:38px 0;border:0;border-top:1px solid var(--line)}
.article-body h2{margin:46px 0 12px;font-size:clamp(1.65rem,3vw,2.1rem);font-weight:800}
.article-body h3{margin:30px 0 8px;font-size:clamp(1.05rem,2vw,1.3rem);font-weight:700;color:#d7d8dc}
.article-body>p{margin:0 0 22px;color:#c4c6cc;font-size:1.02rem;line-height:1.95;white-space:pre-line}
.article-body figure{margin:34px 0}
.article-body img{display:block;width:100%;height:auto;max-height:620px;border:1px solid var(--line);border-radius:14px;background:var(--panel);object-fit:contain}
.article-body figcaption{margin-top:9px;color:var(--muted);font-size:.86rem;text-align:center}
.youtube-block{position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;border:1px solid var(--line);border-radius:14px;background:var(--panel)}
.youtube-block iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.attachment-block{display:flex;align-items:center;gap:14px;margin:26px 0;padding:18px 20px;border:1px solid var(--line);border-radius:13px;background:var(--panel);transition:border-color .2s,background .2s}
.attachment-block:hover,.attachment-block:focus-visible{border-color:var(--accent);background:var(--panel-hover)}
.attachment-block:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.attachment-block>.material-symbols-outlined:first-child{flex:none;color:var(--accent);font-size:1.8rem}
.attachment-block>span:nth-child(2){min-width:0;display:flex;flex:1;flex-direction:column}
.attachment-block strong{overflow-wrap:anywhere}
.attachment-block small{margin-top:3px;color:var(--muted);line-height:1.55}
.attachment-arrow{flex:none;color:var(--muted);font-size:1.2rem}
.article-note{display:flex;gap:13px;margin:28px 0;padding:18px;border-left:3px solid var(--accent);background:var(--panel)}
.article-note>.material-symbols-outlined{flex:none;color:var(--accent)}
.article-note p{margin:0;color:#d3d4d8;line-height:1.8;white-space:pre-line}
.related-articles{margin-top:70px;padding-top:35px;border-top:1px solid var(--line)}
.related-articles h2{margin:7px 0 22px}
footer{padding:25px 16px;border-top:1px solid var(--line);color:var(--muted);font-size:.85rem;text-align:center}
@media(max-width:700px){
  main{padding-top:95px}
  .database-hero{padding:60px 0 45px}
  .search-box{align-items:stretch;flex-wrap:wrap}
  .search-box input{width:calc(100% - 40px)}
  .search-box button{width:100%;margin-top:6px}
  .category-grid{grid-template-columns:1fr}
  .content-heading{align-items:flex-start;flex-direction:column}
  .category-page,.article-page{padding-top:130px}
  .category-header{padding-bottom:45px}
  .article-row{padding:16px}
  .article-body>p{font-size:1rem}
}