:root{--green:#158046;--green-dark:#0d5c30;--green-light:#d4eedf;--bg:#f0f3f1;--card:#FFFFFF;--ink:#0f1a15;--muted:#3d4a43;--line:#b8c5be;--danger:#b91c1c;--warn:#b45309;--radius:14px;--shadow:0 2px 10px rgba(30,43,36,.10);--focus:0 0 0 3px rgba(21,128,70,.35);--sp1:8px;--sp2:12px;--sp3:16px;--sp4:24px}
*{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none!important}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans Thai",sans-serif;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.5}
h1{font-size:20px}h2{font-size:16px}
.muted{color:var(--muted);font-size:13px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:2px solid transparent;border-radius:10px;padding:10px 16px;font-size:14px;font-weight:700;cursor:pointer;background:var(--green);color:#fff;font-family:inherit;box-shadow:0 1px 0 rgba(255,255,255,.15) inset}
.btn:hover{background:var(--green-dark);border-color:var(--green-dark)}
.btn:focus-visible{outline:3px solid var(--green-dark);outline-offset:2px}
.btn.ghost{background:var(--card);color:var(--ink);border:1px solid var(--line)}
.btn.danger{background:var(--danger)}
.btn.sm{padding:6px 10px;font-size:13px;border-radius:8px}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:var(--sp3);border:1px solid var(--line)}
input,select,textarea{width:100%;border:2px solid var(--line);border-radius:10px;padding:10px 12px;font:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:3px solid var(--green);border-color:var(--green-dark);outline-offset:2px;box-shadow:var(--focus)}
label{display:block;font-size:13px;font-weight:600;margin-bottom:4px;color:var(--muted)}
.field{margin-bottom:var(--sp3)}
.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:700;background:var(--green-light);color:var(--green-dark);border:1px solid currentColor}
.badge.warn{background:#FBF1DD;color:#9A6B1D}
.badge.danger{background:#FBE4E4;color:#A33030}
table{width:100%;border-collapse:collapse}
th{font-size:12px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted);text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
td{padding:12px;border-bottom:1px solid var(--line)}
tbody tr:hover td{background:var(--green-light)}
.empty{padding:40px 16px;text-align:center;color:var(--muted)}
.app-wrap{max-width:1200px;margin:0 auto;padding:var(--sp4) var(--sp3)}
.app-head{display:flex;align-items:center;gap:var(--sp2);margin-bottom:var(--sp3);flex-wrap:wrap}
.head-actions{margin-left:auto;display:flex;gap:var(--sp1)}
.search{max-width:200px}
.summary-row{display:flex;gap:var(--sp2);margin-bottom:var(--sp3);flex-wrap:wrap}
.kpi-sm{padding:8px 14px;display:flex;gap:8px;align-items:center}
.item-list{display:flex;flex-direction:column;gap:var(--sp2)}
.item-row{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:var(--sp2) var(--sp3);display:flex;align-items:center;gap:var(--sp2);border:1px solid var(--line)}
.item-main{flex:1;min-width:0}
.item-title{font-weight:600}
.item-actions{display:flex;gap:6px}
.modal[hidden]{display:none}
.modal{position:fixed;inset:0;background:rgba(30,43,36,.45);display:flex;align-items:center;justify-content:center;padding:var(--sp3);z-index:100}
.modal-card{width:100%;max-width:420px}
.modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--sp2)}
.modal-close{border:2px solid transparent;background:none;font-size:18px;cursor:pointer;color:var(--muted);border-radius:8px;padding:4px 8px}
.modal-close:focus-visible{outline:3px solid var(--green-dark);outline-offset:2px}
.filter-bar{display:flex;gap:10px;margin-bottom:var(--sp3);overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch}
.filter-chip{flex:0 0 auto;border:2px solid var(--line);background:var(--card);border-radius:999px;padding:6px 14px;font-size:13px;font-weight:700;cursor:pointer;transition:.15s;color:var(--ink)}
.filter-chip:focus-visible{outline:3px solid var(--green-dark);outline-offset:2px}
.filter-chip:hover{background:var(--green-light)}
.filter-chip.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:var(--sp3)}
.main-layout{display:grid;grid-template-columns:1fr 380px;gap:var(--sp3);align-items:start}
.left-panel{display:flex;flex-direction:column;gap:var(--sp3);position:sticky;top:var(--sp3)}
.right-panel{display:flex;flex-direction:column;gap:var(--sp3);min-height:0}
.youtube-player{aspect-ratio:16/9;background:#0f1a15;overflow:hidden;display:flex;align-items:center;justify-content:center;padding:0}
.youtube-player iframe{width:100%;height:100%;border:0}
.player-placeholder{color:#fff;text-align:center;padding:var(--sp3)}
.player-placeholder span{font-size:48px;display:block;margin-bottom:var(--sp2);opacity:.7}
.player-placeholder p{font-size:14px;opacity:.8}
.details-area{min-height:160px;display:flex;align-items:center;justify-content:center;color:var(--muted)}
.ch-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;cursor:pointer;transition:transform .15s,box-shadow .15s;position:relative;border:1px solid var(--line)}
.ch-card:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(30,43,36,.12)}
.ch-thumb{aspect-ratio:16/9;background:linear-gradient(135deg,var(--green-light),#d8efe4);display:flex;align-items:center;justify-content:center;font-size:34px;color:var(--green)}
.ch-info{padding:var(--sp2);display:flex;flex-direction:column;gap:4px}
.ch-title{font-weight:700;font-size:15px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ch-meta{font-size:13px;color:var(--muted)}
.ch-actions{display:flex;gap:6px;padding:0 var(--sp2) var(--sp2)}
.ch-actions .btn{flex:1}
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:10px 18px;border-radius:999px;font-size:14px;box-shadow:0 6px 24px rgba(0,0,0,.18);z-index:200;display:flex;align-items:center;gap:10px;max-width:90vw}
.toast.info{background:var(--ink)}
.toast.success{background:var(--green-dark)}
.toast.error{background:var(--danger)}
.toast.warn{background:var(--warn);color:#3d2200}
.toast button{background:rgba(255,255,255,.2);border:0;border-radius:6px;padding:4px 10px;color:#fff;font-size:13px;cursor:pointer}
@media(max-width:900px){.main-layout{grid-template-columns:1fr}.left-panel{position:static}.details-area{min-height:120px}}
@media(max-width:520px){.head-actions{width:100%}.search{max-width:none;flex:1}.card-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}}
@media (prefers-contrast: more){
  :root{--bg:#ffffff;--card:#ffffff;--ink:#000000;--muted:#222222;--line:#000000;--green:#004d00;--green-dark:#003300;--green-light:#e6f5e6;--danger:#660000;--warn:#7a3b00;--shadow:none;--focus:0 0 0 3px #000000}
  body{font-size:16px}
  .card,.item-row,.ch-card,.btn,input,select,textarea,.filter-chip,.badge{border-width:2px}
  .btn{box-shadow:none}
  input:focus,select:focus,textarea:focus,.btn:focus-visible,.filter-chip:focus-visible,.modal-close:focus-visible{outline:3px solid #000;outline-offset:2px}
  .ch-thumb,.item-thumb{border:1px solid var(--line)}
}
@media (forced-colors: active){
  :root{--bg:Canvas;--card:Canvas;--ink:CanvasText;--muted:CanvasText;--line:ButtonText;--green:ButtonFace;--green-dark:ButtonText;--green-light:Canvas;--danger:GrayText;--warn:Highlight;--shadow:none;--focus:none}
  .card,.item-row,.ch-card,.btn,input,select,textarea,.filter-chip,.badge{border:2px solid ButtonText;forced-color-adjust:none}
  .btn,.filter-chip{background:ButtonFace;color:ButtonText}
  .btn:hover,.filter-chip:hover,.filter-chip.active{background:Highlight;color:HighlightText;border-color:Highlight}
  .btn.danger{background:ButtonFace;color:ButtonText;border-color:ButtonText}
  input:focus,select:focus,textarea:focus,.btn:focus-visible,.filter-chip:focus-visible,.modal-close:focus-visible{outline:3px solid Highlight;outline-offset:2px}
  .toast{outline:2px solid CanvasText}
}
.preview-wrap img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:10px;background:var(--green-light)}
.item-thumb{width:80px;height:45px;border-radius:8px;overflow:hidden;flex-shrink:0;background:linear-gradient(135deg,var(--green-light),#d8efe4);display:flex;align-items:center;justify-content:center;color:var(--green);font-size:20px;cursor:default}
.item-thumb[data-youtube]:not([data-youtube=""]){cursor:pointer}
.item-thumb img{width:100%;height:100%;object-fit:cover}
.item-thumb iframe{width:100%;height:100%;border:0}