:root{
  --bg: #fff;
  --text: #0b1215;
  --muted: #5f6b73;
  --border: #e5e8eb;
  --card: #fafbfc;
  --accent: #1967d2;
  --accent-ink: #fff;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color:var(--text); background:var(--bg); line-height:1.6;}

.container{max-width:1100px; margin:0 auto; padding:24px}
.container.narrow{max-width:800px}

a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}

.site-header{border-bottom:1px solid var(--border); background:var(--bg); position:sticky; top:0; z-index:30}
.header-inner{display:flex; align-items:center; justify-content:space-between; gap:16px}
.brand{display:flex; align-items:center; gap:10px; font-weight:700; color:inherit}
.nav{display:flex; gap:16px; align-items:center}
.nav a{padding:8px 10px; border-radius:8px}
.nav .btn-donate{background:var(--accent); color:var(--accent-ink); padding:8px 12px}
.nav .btn-donate:hover{text-decoration:none; filter:brightness(0.95)}

.hero{display:grid; grid-template-columns: 1.2fr 1fr; gap:24px; align-items:center; padding-block:24px}
.hero h1{font-size: clamp(24px, 4vw, 40px); line-height:1.2; margin:0 0 8px}
.hero .searchbar{display:flex; gap:8px; margin-top:12px}
.searchbar input[type="search"]{flex:1; padding:12px 14px; border:1px solid var(--border); border-radius:12px}
.searchbar .btn{padding:12px 16px}

.section-head{display:flex; align-items:baseline; justify-content:space-between; gap:12px; margin:24px 0 12px}
.grid{display:grid; gap:16px}
.grid.cards{grid-template-columns: repeat(auto-fill, minmax(230px, 1fr))}
.grid.categories{grid-template-columns: repeat(auto-fill, minmax(200px, 1fr))}

.card{background:var(--card); border:1px solid var(--border); border-radius:14px; overflow:hidden; display:flex; flex-direction:column}
.card .thumb{aspect-ratio: 4/3; background:#f2f4f7; display:flex; align-items:center; justify-content:center}
.card .thumb img{width:100%; height:100%; object-fit:cover}
.card .body{padding:12px 14px}
.card .meta{font-size:12px; color:var(--muted)}
.card .title{font-weight:600; margin:6px 0}

.btn{background:var(--accent); color:var(--accent-ink); border:none; border-radius:10px; padding:10px 14px; cursor:pointer}
.btn:hover{filter:brightness(0.96); text-decoration:none}
.btn-ghost{background:transparent; color:var(--accent); border:1px solid var(--accent)}

.small{font-size:12px}
.muted{color:var(--muted)}

.site-footer{border-top:1px solid var(--border); margin-top:40px; padding:24px 0}
.footer-grid{display:grid; grid-template-columns:2fr 1fr 1fr; gap:24px}
.brand-row{display:flex; gap:8px; align-items:center}

.breadcrumbs{font-size:13px; color:var(--muted); margin-top:8px}
.breadcrumbs a{color:inherit}

.filters{display:flex; flex-wrap:wrap; gap:10px; padding:12px 0}
.filters input, .filters select{padding:10px 12px; border:1px solid var(--border); border-radius:10px}

.pagination{display:flex; gap:8px; justify-content:center; margin:20px 0}
.pagination button{padding:8px 12px; border:1px solid var(--border); background:var(--bg); border-radius:8px; cursor:pointer}
.pagination .active{background:var(--accent); color:var(--accent-ink); border-color:var(--accent)}

.chips{display:flex; gap:8px; flex-wrap:wrap}
.chip{background:#eef2ff; color:#374151; border:1px solid var(--border); padding:4px 8px; border-radius:999px; font-size:12px}

.ws-article{display:grid; gap:22px}
.ws-head h1{margin:6px 0 0}
.ws-cta{display:flex; gap:10px; flex-wrap:wrap; margin-top:8px}
.ws-preview{display:grid; grid-template-columns: 2fr 1fr; gap:16px; align-items:start}
.pdf-frame{border:1px solid var(--border); border-radius:12px; overflow:hidden; background:#fff; min-height:480px}
.pdf-frame iframe{width:100%; height:70vh; border:0}
.ws-meta{border:1px solid var(--border); border-radius:12px; padding:12px; background:var(--card)}
.ws-meta dl{display:grid; grid-template-columns:120px 1fr; gap:8px 10px; margin:0}

.tags{display:flex; gap:8px; flex-wrap:wrap; margin-top:8px}
.tag{font-size:12px; background:#f5f5f5; border:1px solid var(--border); padding:3px 8px; border-radius:8px}

@media (max-width: 860px){
  .hero{grid-template-columns: 1fr}
  .ws-preview{grid-template-columns: 1fr}
}