:root{
  --bg:#ffffff;
  --bg-soft:#f8f9fb;
  --panel:#ffffff;
  --panel-soft:#f6f7f9;
  --line:#e5e7eb;
  --text:#0f172a;
  --muted:#64748b;
  --red:#ff2d2d;
  --dark:#111827;
  --yellow:#b7791f;
  --yellow-bg:#fff5d6;
  --shadow:0 8px 30px rgba(15,23,42,.08);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:Arial,Helvetica,sans-serif;color:var(--text);background:var(--bg)}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
button,input,textarea,select{font:inherit}
.hidden{display:none!important}
.message{margin:.6rem 0 0;color:var(--red);font-size:.95rem}
.warning{color:#8a5a00;background:var(--yellow-bg);border:1px solid #f6d98b;padding:12px 14px;border-radius:14px}
.empty-state{background:var(--panel-soft);border:1px dashed var(--line);border-radius:16px;padding:18px;color:var(--muted)}
.inline-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.checkbox-row{display:flex;justify-content:space-between;align-items:center;gap:12px;border:1px solid var(--line);border-radius:14px;padding:10px 12px;background:#fff}
.checkbox-row input{transform:scale(1.05)}
.ghost-btn, button, .studio-link{
  border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:999px;
  padding:10px 16px;cursor:pointer;transition:.18s ease;white-space:nowrap
}
button:hover,.ghost-btn:hover,.studio-link:hover{background:#f3f4f6}
button.primary{background:var(--dark);color:#fff;border-color:var(--dark)}
button.primary:hover{opacity:.92}
.topbar{
  position:sticky;top:0;z-index:20;display:grid;
  grid-template-columns:220px minmax(280px,640px) 180px;gap:18px;align-items:center;justify-content:center;
  padding:12px 24px;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)
}
.topbar-left,.topbar-center,.topbar-right{display:flex;align-items:center}
.topbar-center{justify-content:center}
.topbar-right{justify-content:flex-end}
.brand-wrap{display:inline-flex;align-items:center;gap:10px;font-weight:800}
.brand-logo{width:34px;height:34px;border-radius:12px;background:var(--red);color:#fff;display:inline-flex;align-items:center;justify-content:center;box-shadow:var(--shadow)}
.brand-text{font-size:1.28rem}
#searchInput,.stack-form input,.stack-form textarea,.stack-form select,.admin-card input{
  width:100%;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:14px;padding:12px 14px;outline:none
}
#searchInput{max-width:620px}
textarea{min-height:110px;resize:vertical}
.page{max-width:1500px;margin:0 auto;padding:26px 24px 60px}
.hero-section{margin-bottom:28px}
.featured-card{background:var(--panel);border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:var(--shadow)}
.featured-layout{display:grid;grid-template-columns:minmax(0,2.1fr) minmax(320px,1fr)}
.featured-video-thumb,.media-thumb{position:relative;background:#0b0b0b}
.featured-video-thumb{aspect-ratio:16/9}
.featured-video-thumb img,.media-thumb img{width:100%;height:100%;object-fit:cover}
.featured-info{padding:22px;display:flex;flex-direction:column;gap:14px}
.featured-info h1{margin:0;font-size:2rem;line-height:1.15}
.featured-info p{margin:0;color:var(--muted);line-height:1.5}
.section-block{margin-top:34px}
.section-title-row{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px}
.section-title-row h2{margin:0;font-size:1.35rem}
.legend{display:flex;gap:8px;flex-wrap:wrap}
.badge{display:inline-flex;align-items:center;justify-content:center;padding:6px 11px;border-radius:999px;font-size:.82rem;font-weight:700}
.badge.planned,.badge.ended{background:#eef2f7;color:#475569}
.badge.live{background:var(--red);color:#fff}
.badge.locked{background:var(--yellow-bg);color:var(--yellow)}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.media-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow);cursor:pointer;transition:transform .18s ease}
.media-card:hover{transform:translateY(-2px)}
.media-thumb{aspect-ratio:16/9}
.thumb-badges{position:absolute;top:12px;left:12px;display:flex;gap:8px;flex-wrap:wrap}
.play-pill{position:absolute;bottom:12px;right:12px;background:rgba(15,23,42,.88);color:#fff;border-radius:999px;padding:8px 12px;font-weight:700}
.media-content{padding:14px 15px 18px}
.media-content h3{margin:0 0 8px;font-size:1.05rem;line-height:1.3}
.media-content p{margin:0;color:var(--muted);line-height:1.45}
.modal{position:fixed;inset:0;z-index:40;display:flex;align-items:center;justify-content:center}
.modal-backdrop{position:absolute;inset:0;background:rgba(15,23,42,.62)}
.modal-panel{position:relative;z-index:2;background:#fff;border-radius:22px;width:min(1100px,96vw);max-height:92vh;overflow:auto;box-shadow:0 20px 80px rgba(0,0,0,.28)}
.single-panel{max-width:1100px}
.modal-close{position:absolute;top:12px;right:12px;width:42px;height:42px;padding:0;border-radius:999px;font-size:1.5rem;background:#fff}
.player-area{padding:22px}
.only-player{max-width:100%}
.player-shell{background:#000;border-radius:18px;overflow:hidden;aspect-ratio:16/9}
.player-shell iframe{width:100%;height:100%;border:0;display:block}
.player-meta{padding:16px 4px 0}
.player-meta h3{margin:0 0 10px;font-size:1.45rem}
.player-meta p{margin:0;color:var(--muted);line-height:1.55}
.player-status-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.unlock-area{margin-top:16px;padding:18px;border:1px solid var(--line);border-radius:18px;background:var(--panel-soft)}
.unlock-area h4{margin:0 0 8px}
.unlock-area p{margin:0 0 12px;color:var(--muted)}
.studio-body{background:#f6f7fb}
.admin-page{min-height:100vh;display:flex;align-items:flex-start;justify-content:center;padding:36px 18px}
.admin-card{width:min(1280px,100%);background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:24px}
.small-card{width:min(540px,100%);margin-top:60px}
.login-badge{display:inline-flex;align-items:center;justify-content:center;padding:7px 12px;border-radius:999px;background:#fee2e2;color:#b91c1c;font-size:.82rem;font-weight:800;margin-bottom:10px}
.admin-top{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;padding-bottom:10px}
.admin-top h1{margin:0 0 8px}
.admin-top p{margin:0;color:var(--muted)}
.admin-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.settings-box{margin-top:18px;border:1px solid var(--line);border-radius:20px;background:#fff;padding:18px}
.box-head{display:flex;justify-content:space-between;gap:14px;align-items:flex-start;margin-bottom:14px}
.box-head h2,.settings-box h2{margin:0 0 6px}
.box-note{margin:0;color:var(--muted)}
.form-grid,.manage-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.stack-form{display:grid;gap:12px}
.admin-list{display:grid;gap:12px}
.admin-item{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:flex-start;padding:14px;border:1px solid var(--line);border-radius:16px;background:var(--panel-soft)}
.admin-item-main strong{display:block;margin-bottom:8px}
.admin-meta-row{display:flex;gap:8px;flex-wrap:wrap}
.admin-item-actions{display:flex;gap:8px;flex-wrap:nowrap;align-items:center;justify-content:flex-end}
.admin-item-actions button{padding:8px 12px;font-size:.95rem}
@media (max-width:1100px){
  .topbar{grid-template-columns:1fr;justify-items:stretch}
  .topbar-left,.topbar-right,.topbar-center{justify-content:flex-start}
  .featured-layout,.form-grid,.manage-grid{grid-template-columns:1fr}
}
@media (max-width:900px){
  .admin-item{grid-template-columns:1fr}
  .admin-item-actions{flex-wrap:wrap;justify-content:flex-start}
}
@media (max-width:700px){
  .page{padding:18px 14px 50px}
  .admin-card{padding:18px}
}