:root{
  --bg:#f5f7fb;--card:#fff;--text:#152033;--muted:#6b7280;--line:#e5e7eb;
  --blue:#0f62fe;--green:#16a34a;--red:#dc2626;--amber:#d97706;--dark:#0f172a
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--text)}
button,input,select,textarea{font:inherit}
h1{font-size:24px;margin:0}
h3{margin:0 0 10px}
.hidden{display:none!important}
.muted{font-size:13px;color:var(--muted)}
.msg{margin-top:10px;min-height:1.2em}
.btn{border:0;border-radius:10px;padding:9px 14px;font-weight:700;cursor:pointer;white-space:nowrap}
.btn:disabled{opacity:.55;cursor:default}
.btn.primary{background:var(--blue);color:#fff}
.btn.secondary{background:#eaf0f7;color:var(--text)}
.btn.danger{background:#fee2e2;color:#991b1b}
.btn.small{padding:6px 10px;font-size:13px}
.btn.block{width:100%;margin-top:14px}
.link{background:none;border:0;color:#93c5fd;cursor:pointer;padding:0}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:0 4px 16px rgba(15,23,42,.04)}
.badge{display:inline-block;padding:4px 8px;border-radius:999px;background:#eef2ff;color:#3730a3;font-size:12px;font-weight:800}
.code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#eef2f7;padding:2px 6px;border-radius:6px;font-size:13px}
label{display:block;font-size:12px;color:#64748b;margin:10px 0 4px}
input,select,textarea{width:100%;padding:9px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--text)}
input[type=checkbox]{width:auto}
input[type=color]{padding:2px;height:38px}
textarea{resize:vertical;min-height:70px}

.login{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:var(--dark)}
.loginbox{width:min(100%,420px)}

.app{display:grid;grid-template-columns:220px 1fr;min-height:100vh}
.side{background:var(--dark);color:#fff;padding:20px 14px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.brand{font-weight:900;font-size:21px;letter-spacing:.03em}.brand span{color:#4da3ff}
.nav{margin-top:24px;display:grid;gap:4px}
.nav button{background:transparent;border:0;color:#cbd5e1;text-align:left;padding:10px 12px;border-radius:10px;cursor:pointer}
.nav button:hover{background:#1e293b}
.nav button.active{background:#1e293b;color:#fff;font-weight:700}
.sidefoot{margin-top:auto;font-size:12px;color:#94a3b8;display:grid;gap:6px}
.main{padding:22px;min-width:0}
.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;gap:12px;flex-wrap:wrap}
.top-actions{display:flex;gap:8px;flex-wrap:wrap}

.grid4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.metric{font-size:28px;font-weight:900;margin-top:6px}
.section{margin-top:18px}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:#fff}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:11px 12px;border-bottom:1px solid var(--line);text-align:left;font-size:14px;vertical-align:middle}
.table tr:last-child td{border-bottom:0}
.table th{font-size:12px;text-transform:uppercase;color:#64748b;background:#f8fafc}
.row-actions{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.dot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:6px;vertical-align:middle}
.dot.on{background:var(--green)}.dot.off{background:var(--red)}.dot.none{background:#cbd5e1}
.empty{padding:28px;text-align:center;color:var(--muted)}
.notice{background:#eff6ff;border:1px solid #bfdbfe;color:#1e3a8a;border-radius:12px;padding:12px 14px;font-size:14px;margin-bottom:14px}
.warn{background:#fffbeb;border-color:#fde68a;color:#92400e}

.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.thumb{aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:#111827;margin-bottom:10px;position:relative}
.thumb img,.thumb video{width:100%;height:100%;object-fit:cover;display:block}
.thumb .hs-stage{width:100%;height:100%}
.thumb.portrait{aspect-ratio:16/9;display:flex;justify-content:center}
.thumb.portrait>div{width:31.6%!important}
.nav .nav-cta{background:#0f62fe;color:#fff;font-weight:700;margin-bottom:6px}
.nav .nav-cta:hover{background:#0b52d9}
.card-title{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.card-actions{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap}
.folder{margin:18px 0 8px;font-weight:800;color:#334155}

.upload{display:flex;gap:10px;align-items:end;flex-wrap:wrap}
.upload > div{min-width:180px}
.progress{height:6px;background:#e2e8f0;border-radius:999px;overflow:hidden;margin-top:8px}
.progress > div{height:100%;background:var(--blue);width:0;transition:width .2s}

/* Modal */
.modal-back{position:fixed;inset:0;background:rgba(15,23,42,.55);display:flex;align-items:center;justify-content:center;z-index:40;padding:16px}
.modal{background:#fff;border-radius:16px;width:min(100%,520px);max-height:90vh;overflow:auto;padding:20px}
.modal.wide{width:min(100%,1100px)}
.modal h3{margin-top:0}
.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:18px}
.checklist{display:grid;gap:6px;max-height:300px;overflow:auto;border:1px solid var(--line);border-radius:10px;padding:10px}
.checklist label{display:flex;gap:8px;align-items:center;margin:0;font-size:14px;color:var(--text)}
.preview{width:100%;aspect-ratio:16/9}

.toast{position:fixed;right:18px;bottom:18px;background:#111827;color:#fff;padding:12px 15px;border-radius:10px;opacity:0;transition:.2s;z-index:60;pointer-events:none;max-width:420px}
.toast.show{opacity:1}
.toast.error{background:#991b1b}

@media (max-width:1000px){
  .app{grid-template-columns:1fr}
  .side{position:static;height:auto;flex-direction:row;flex-wrap:wrap;align-items:center;gap:10px}
  .nav{margin:0;display:flex;flex-wrap:wrap}
  .sidefoot{margin:0}
  .grid4{grid-template-columns:1fr 1fr}
  .editor{grid-template-columns:1fr;height:auto}
}