/* ===================================================================
   MyVideoSite — YouTube-inspired theme
   =================================================================== */
:root{
  --primary:#FF0000; --primary-dark:#CC0000; --deal:#f97316;
  --bg:#f9f9f9; --card-bg:#fff; --text:#0f0f0f; --muted:#606060; --border:#e5e5e5;
  --hover-bg:#f2f2f2; --radius:12px; --radius-sm:8px;
  --header-h:56px; --chip-h:44px; --sidebar-w:240px;
  --shadow-sm:0 1px 2px rgba(0,0,0,.08);
  --shadow-md:0 4px 16px rgba(0,0,0,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + var(--chip-h) + 12px)}
body{margin:0;font-family:Roboto,-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
button{font-family:inherit}
.container{max-width:1500px;margin:0 auto;padding:0 24px}
img{max-width:100%}
::-webkit-scrollbar{height:8px;width:8px}
::-webkit-scrollbar-thumb{background:#c7c7c7;border-radius:8px}
::-webkit-scrollbar-track{background:transparent}

/* ===================== HEADER ===================== */
.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:60}
.header-inner{display:flex;align-items:center;gap:14px;padding:0 16px;height:var(--header-h)}
.icon-btn{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border:none;background:none;border-radius:50%;cursor:pointer;color:var(--text);flex-shrink:0;transition:background .15s}
.icon-btn:hover{background:var(--hover-bg)}
.icon-btn svg{width:22px;height:22px}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:19px;flex-shrink:0;letter-spacing:-.3px;color:var(--text)}
.lang-switch{display:flex;align-items:center;gap:2px;border:1px solid var(--border,#3a3a3a);border-radius:14px;padding:2px;font-size:11px;font-weight:700;margin-right:6px}
.lang-switch a{padding:3px 8px;border-radius:12px;color:var(--muted,#999);text-decoration:none}
.lang-switch a.active{background:var(--primary,#4f46e5);color:#fff}
.logo-badge{width:30px;height:22px;color:var(--primary);display:flex}
.logo-badge svg{width:100%;height:100%}
.logo-badge-img{width:auto;height:32px;max-width:160px}
.logo img{height:28px}
.logo-badge-img img{height:100%;width:auto;max-width:160px;object-fit:contain}

.search-form{flex:1;display:flex;max-width:600px;margin:0 auto;height:40px}
.search-form input{flex:1;min-width:0;padding:0 16px;border:1px solid var(--border);border-right:none;border-radius:20px 0 0 20px;outline:none;font-size:15px;background:#fff}
.search-form input:focus{border-color:#1c62b9;box-shadow:inset 0 0 0 1px #1c62b9}
.search-form button{border:1px solid var(--border);background:#f8f8f8;border-radius:0 20px 20px 0;padding:0 20px;cursor:pointer;display:flex;align-items:center;color:var(--text)}
.search-form button svg{width:20px;height:20px}
.search-form button:hover{background:var(--hover-bg)}

.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-outline{border:1px solid var(--border);padding:8px 16px;border-radius:18px;font-weight:600;font-size:14px;color:#065fd4;white-space:nowrap}
.btn-outline:hover{background:#e7f1ff}
.btn-primary-sm{background:var(--primary);color:#fff!important;border-radius:18px;padding:8px 16px;font-weight:600;font-size:14px;white-space:nowrap}
.btn-primary-sm:hover{background:var(--primary-dark)}

.avatar-btn{border:none;background:none;padding:0;cursor:pointer;border-radius:50%;line-height:0}
.avatar{border-radius:50%;object-fit:cover;background:#ddd}
.avatar-sm{width:32px;height:32px}
.user-menu{position:relative}
.user-dropdown{position:absolute;right:0;top:calc(100% + 10px);background:#fff;border-radius:12px;box-shadow:var(--shadow-md);border:1px solid var(--border);min-width:220px;padding:8px 0;display:none;z-index:70}
.user-dropdown.open{display:block}
.user-dropdown-head{display:flex;align-items:center;gap:10px;padding:10px 16px 12px;border-bottom:1px solid var(--border);font-weight:600;margin-bottom:6px}
.user-dropdown a{display:block;padding:9px 16px;font-size:14px;font-weight:500}
.user-dropdown a:hover{background:var(--hover-bg)}

/* Chip / category row under header */
.chip-row{display:flex;gap:10px;overflow-x:auto;padding:9px 16px;border-top:1px solid var(--border);scrollbar-width:none}
.chip-row::-webkit-scrollbar{display:none}
.chip{flex-shrink:0;background:#f2f2f2;color:var(--text);font-size:13px;font-weight:500;padding:7px 14px;border-radius:8px;white-space:nowrap;transition:background .15s}
.chip:hover{background:#e5e5e5}
.chip.active{background:var(--text);color:#fff}

/* ===================== SIDEBAR (off-canvas drawer) ===================== */
.sidebar-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);opacity:0;pointer-events:none;transition:opacity .2s;z-index:65}
.sidebar-overlay.active{opacity:1;pointer-events:auto}
.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);background:#fff;box-shadow:var(--shadow-md);transform:translateX(-100%);transition:transform .22s ease;z-index:66;overflow-y:auto;padding:12px 0}
.sidebar.open{transform:translateX(0)}
.sidebar-link{display:flex;align-items:center;gap:20px;padding:11px 22px;font-size:14px;font-weight:500;color:var(--text);border-radius:0 20px 20px 0;margin-right:12px}
.sidebar-link svg{width:22px;height:22px;flex-shrink:0}
.sidebar-link:hover{background:var(--hover-bg)}
.sidebar-heading{font-size:13px;font-weight:700;color:var(--muted);padding:12px 22px 6px;margin:0}
.sidebar-divider{height:1px;background:var(--border);margin:10px 16px}
body.sidebar-locked{overflow:hidden}

/* ===================== Sections & grid ===================== */
.main-content{padding:20px 16px 60px}
.main-content > h1{font-size:20px;font-weight:700;margin:4px 0 20px}
.section{margin-bottom:40px}
.section-title{font-size:19px;font-weight:700;margin-bottom:16px;display:flex;justify-content:space-between;align-items:center}
.see-more{font-size:13px;color:#065fd4;font-weight:600}
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:22px 16px}
.shorts-row{display:flex;gap:12px;overflow-x:auto;padding-bottom:10px;scrollbar-width:none}
.shorts-row::-webkit-scrollbar{display:none}
.shorts-row .video-card{flex:0 0 180px}

/* ===================== Video card ===================== */
.video-card{display:block;cursor:pointer}
.thumb-wrap{position:relative;display:block;background:#000;aspect-ratio:16/9;border-radius:var(--radius);overflow:hidden}
.video-card.is-vertical .thumb-wrap{aspect-ratio:9/16}
.thumb-wrap img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .25s}
.video-card:hover .thumb-wrap img{transform:scale(1.04)}
.video-card:hover .video-title{color:var(--primary)}
.duration{position:absolute;bottom:6px;right:6px;background:rgba(0,0,0,.85);color:#fff;font-size:11px;font-weight:600;padding:2px 5px;border-radius:4px}
.badge-feature{position:absolute;top:6px;left:6px;background:#facc15;color:#000;font-size:11px;font-weight:700;padding:2px 6px;border-radius:4px}
.badge-deal{position:absolute;top:6px;right:6px;background:var(--deal);color:#fff;font-size:11px;font-weight:700;padding:2px 6px;border-radius:4px}

.video-info{display:flex;gap:10px;padding:10px 0 0}
.video-info-avatar{flex-shrink:0}
.channel-avatar{width:36px;height:36px;border-radius:50%;object-fit:cover;background:#ddd}
.video-info-text{min-width:0;flex:1}
.video-title{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:14.5px;font-weight:600;line-height:1.35;margin:0 0 3px;color:var(--text)}
a.video-title{display:-webkit-box}
.video-channel{display:block;font-size:13px;color:var(--muted);margin-bottom:2px}
.video-channel:hover{color:var(--text)}
.video-meta{font-size:12.5px;color:var(--muted);margin:0}

/* ===================== Watch page ===================== */
.watch-layout{display:grid;grid-template-columns:2.2fr 1fr;gap:24px;align-items:start;max-width:1500px;margin:0 auto}
.player-block{width:100%}
.player-block.is-vertical{max-width:420px;margin:0 auto}
.player-wrap{position:relative;width:100%;aspect-ratio:16/9;background:#000;border-radius:var(--radius);overflow:hidden}
.player-block.is-vertical .player-wrap{aspect-ratio:9/16}
.player-wrap.has-deal-bar{border-radius:var(--radius) var(--radius) 0 0}
.player-embed,.player-embed iframe,.player-embed video{width:100%;height:100%;border:0}

.deal-overlay{position:absolute;left:10px;right:10px;bottom:10px;background:rgba(20,20,20,.9);backdrop-filter:blur(4px);
  border-radius:var(--radius-sm);color:#fff;padding:10px 12px;display:flex;align-items:center;z-index:5;animation:slideUp .3s ease}
@keyframes slideUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.deal-overlay-inner{display:flex;align-items:center;gap:10px;width:100%}

/* Thanh Deal/Affiliate NGAY DƯỚI video — full chiều ngang bằng video, liền mí, không phủ lên video, không có nút tắt */
.deal-bar{display:flex;align-items:center;gap:12px;width:100%;background:#181818;color:#fff;
  padding:10px 14px;border-radius:0 0 var(--radius) var(--radius)}
.deal-bar .deal-thumb{width:52px;height:52px;object-fit:cover;border-radius:8px;flex-shrink:0}
.deal-bar .deal-info{flex:1;min-width:0}
.deal-bar .deal-title{font-size:15px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.35}
.deal-bar .deal-sub{font-size:12.5px;color:#aaa;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}
.deal-bar .btn-deal{border:none;border-radius:20px;padding:9px 20px;font-size:13.5px;font-weight:700;cursor:pointer;
  white-space:nowrap;background:#3a3a3c;color:#fff;flex-shrink:0}
.deal-bar .btn-deal:hover{background:#4a4a4c}
.deal-bar .coupon-box{display:flex;align-items:center;gap:6px;background:#fff;color:#111;border-radius:6px;padding:7px 10px;
  font-size:12px;font-weight:700;cursor:pointer;white-space:nowrap;border:1px dashed #999;flex-shrink:0}
.deal-bar .coupon-box:hover{background:#f2f2f2}
.deal-bar .coupon-label{opacity:.6;font-weight:600}
.deal-bar .coupon-value{letter-spacing:.5px}
.deal-bar .deal-menu-dots{flex-shrink:0;color:#aaa;font-size:18px;line-height:1;padding:4px;cursor:default}
.deal-thumb{width:44px;height:44px;object-fit:cover;border-radius:6px;flex-shrink:0}
.deal-text{flex:1;min-width:0;font-size:13px}
.deal-text strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.deal-price{color:#facc15;font-weight:700}
.deal-actions{display:flex;gap:6px;flex-shrink:0;align-items:center}
.btn-deal{border:none;border-radius:6px;padding:7px 12px;font-size:12px;font-weight:700;cursor:pointer;white-space:nowrap;background:var(--deal);color:#fff}
/* Mã giảm giá hiển thị luôn (thay cho nút "Get Code" phải bấm mới lộ ra) */
.coupon-box{display:flex;align-items:center;gap:6px;background:#fff;color:#111;border-radius:6px;padding:7px 12px;font-size:12px;font-weight:700;cursor:pointer;white-space:nowrap;border:1px dashed #999}
.coupon-box:hover{background:#f2f2f2}
.coupon-label{opacity:.6;font-weight:600}
.coupon-value{letter-spacing:.5px}
.deal-close{position:absolute;top:-8px;right:-8px;background:#000;color:#fff;border:2px solid var(--bg);border-radius:50%;width:22px;height:22px;cursor:pointer;font-size:11px}

/* Overlay quảng cáo trong video (in-stream, admin quản lý) */
.video-ad-overlay{cursor:default}
.video-ad-overlay .video-ad-link{display:block;text-decoration:none;color:inherit;width:100%}
.video-ad-overlay .ad-label{background:rgba(255,255,255,.15);border-radius:4px;padding:2px 6px;font-size:10px;text-transform:uppercase;letter-spacing:.5px}
/* Quảng cáo trong video - kiểu "chỉ hiển thị hình ảnh": bỏ nền tối/padding của overlay,
   hiển thị nguyên ảnh admin đã upload, không chèn thêm tiêu đề/mô tả/nhãn nào khác */
.video-ad-overlay.video-ad-image-only{background:transparent;backdrop-filter:none;padding:0;display:block}
.video-ad-overlay.video-ad-image-only .video-ad-link{line-height:0}
.video-ad-image-only-img{width:100%;max-height:220px;object-fit:contain;border-radius:var(--radius-sm);display:block}

/* Checkbox "cho phép tự phát tán quảng cáo" trong form Thêm/Sửa video */
.checkbox-row{display:flex;align-items:flex-start;gap:8px;font-weight:400;font-size:14px;line-height:1.5;cursor:pointer}
.checkbox-row input{margin-top:3px;flex-shrink:0}
.btn-secondary{border:1px solid var(--border);background:#fff;color:var(--text);border-radius:6px;padding:0 14px;font-size:13px;font-weight:600;cursor:pointer;white-space:nowrap}
.btn-secondary:hover{background:var(--hover-bg)}

.watch-title{font-size:20px;font-weight:700;margin:16px 0 10px;line-height:1.3}
.watch-meta-row{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;color:var(--muted);font-size:14px;padding-bottom:14px}
.share-buttons{display:flex;gap:8px;flex-wrap:wrap}
.share-buttons a,.share-buttons button{background:#f2f2f2;border:none;padding:7px 12px;border-radius:16px;font-size:13px;font-weight:600;cursor:pointer;color:var(--text)}
.share-buttons a:hover,.share-buttons button:hover{background:#e5e5e5}
.channel-row{display:flex;align-items:center;gap:10px;padding:14px 0;font-weight:600;border-top:1px solid var(--border)}
.channel-row .avatar{width:44px;height:44px}
.video-description{background:var(--hover-bg);border-radius:var(--radius-sm);padding:14px 16px;font-size:14px;line-height:1.6;white-space:pre-line;margin-top:6px}
.hashtags{margin-top:10px}
.hashtags a{color:#065fd4;margin-right:10px;font-weight:600}

.watch-sidebar .video-card{margin-bottom:14px}
.watch-sidebar h3{font-size:16px;margin:0 0 12px}

/* ===================== Channel page ===================== */
.channel-header{display:flex;align-items:center;gap:18px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;margin-bottom:28px}

/* ===================== Modal ===================== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.55);display:flex;align-items:center;justify-content:center;z-index:100;padding:16px}
.modal-box{background:#fff;border-radius:var(--radius);padding:22px;max-width:420px;width:100%;box-shadow:var(--shadow-md)}
.modal-box h3{margin-top:0}
.modal-box label{display:block;font-weight:600;margin:10px 0 4px;font-size:13px}
.modal-box select,.modal-box textarea{width:100%;padding:9px 10px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px}

/* ===================== Comments ===================== */
.comments-section{margin-top:28px}
.comments-section h3{font-size:16px}
.comment-form{display:flex;gap:12px;margin-bottom:24px;align-items:flex-start}
.comment-form textarea{flex:1;padding:8px 0;border:none;border-bottom:1px solid var(--border);resize:vertical;font-size:14px;outline:none;background:transparent}
.comment-form textarea:focus{border-color:var(--text)}
.comment-item{display:flex;gap:12px;margin-bottom:18px}
.comment-body{flex:1;font-size:14px}
.comment-body strong{font-size:13px}
.comment-time{color:var(--muted);font-size:12px;font-weight:400}
.comment-body p{margin:4px 0}
.comment-replies{margin-top:10px;padding-left:16px;border-left:2px solid var(--border)}
.link-btn{background:none;border:none;color:var(--muted);font-size:12px;font-weight:700;cursor:pointer;padding:0;margin-right:14px;text-transform:uppercase;letter-spacing:.3px}
.link-btn:hover{color:var(--text)}
.reply-form{margin-top:8px;display:flex;flex-direction:column;gap:6px;max-width:480px}
.reply-form textarea{padding:8px;border:1px solid var(--border);border-radius:var(--radius-sm);resize:vertical}

/* ===================== Playlist ===================== */
.playlist-check-row{display:flex;align-items:center;gap:8px;padding:6px 0;font-size:14px}
.playlist-check-row input{width:auto}
.playlist-card .thumb-wrap{display:flex;align-items:center;justify-content:center;background:#1f2937}
.playlist-icon{font-size:44px}

/* ===================== Ad zone ===================== */
.ad-zone-box{margin:20px auto;text-align:center}
.ad-zone-box .ad-label{display:block;font-size:10px;color:var(--muted);margin-top:2px}

/* ===================== Forms / Panels ===================== */
.auth-form{max-width:420px;margin:48px auto;background:#fff;padding:28px;border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm)}
.auth-form h1,.auth-form h2{margin-top:0}
.auth-form input{width:100%;padding:11px 12px;margin:6px 0 14px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;outline:none}
.auth-form input:focus{border-color:var(--primary)}

.panel-layout{display:grid;grid-template-columns:220px 1fr;gap:22px;align-items:start}
.panel-sidebar nav{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;position:sticky;top:calc(var(--header-h) + var(--chip-h) + 16px)}
.panel-sidebar a{padding:12px 16px;border-bottom:1px solid var(--border);font-weight:600;font-size:14px}
.panel-sidebar a:last-child{border-bottom:none}
.panel-sidebar a.active,.panel-sidebar a.cur,.panel-sidebar a:hover{background:var(--primary);color:#fff}
.panel-content{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px}
.panel-content form{max-width:600px}
.panel-content label{display:block;font-weight:600;margin:12px 0 4px;font-size:13px}
.panel-content input,.panel-content select,.panel-content textarea{width:100%;padding:9px 10px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;outline:none}
.panel-content input:focus,.panel-content select:focus,.panel-content textarea:focus{border-color:var(--primary)}
fieldset{border:1px solid var(--border);border-radius:var(--radius);margin-top:18px;padding:14px}
legend{font-weight:700;padding:0 6px}

.btn-primary{background:var(--primary);color:#fff;border:none;padding:11px 22px;border-radius:var(--radius-sm);font-weight:700;font-size:14px;cursor:pointer;margin-top:16px}
.btn-primary:hover{background:var(--primary-dark)}
.btn-secondary{background:#f2f2f2;border:1px solid var(--border);padding:9px 16px;border-radius:var(--radius-sm);cursor:pointer;font-weight:600;font-size:14px}
.btn-secondary:hover{background:#e5e5e5}

.stat-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:16px 0 26px}
.stat-card{background:var(--hover-bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:18px;text-align:center}
.stat-card span{display:block;font-size:26px;font-weight:800;color:var(--primary);margin-bottom:2px}

.data-table{width:100%;border-collapse:collapse;margin-top:12px;font-size:13px}
.data-table th{background:var(--hover-bg);font-weight:700;text-align:left}
.data-table th,.data-table td{padding:11px 12px;border-bottom:1px solid var(--border)}
.data-table tr:hover td{background:#fafafa}

.alert-error{background:#fee2e2;color:#b91c1c;padding:11px 14px;border-radius:var(--radius-sm);margin-bottom:14px}
.alert-success{background:#dcfce7;color:#15803d;padding:11px 14px;border-radius:var(--radius-sm);margin-bottom:14px}
.code-box{background:#0f0f0f;color:#4ade80;padding:14px;border-radius:var(--radius-sm);overflow-x:auto;font-size:12px;font-family:Consolas,Menlo,monospace}
.ad-unit-box{border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:16px}

.pagination{display:flex;gap:10px;margin-top:24px}
.pagination a{background:#fff;padding:9px 16px;border-radius:var(--radius-sm);border:1px solid var(--border);font-weight:600;font-size:14px}
.pagination a:hover{background:var(--hover-bg)}

.site-footer{background:#fff;border-top:1px solid var(--border);padding:26px 16px;text-align:center;color:var(--muted);font-size:13px;margin-top:20px}

/* ===================== Responsive ===================== */
@media (max-width: 1000px){
  .watch-layout{grid-template-columns:1fr}
  .panel-layout{grid-template-columns:1fr}
  .panel-sidebar nav{flex-direction:row;overflow-x:auto;position:static}
  .panel-sidebar a{white-space:nowrap;border-bottom:none;border-right:1px solid var(--border)}
}
@media (max-width: 640px){
  .container{padding:0 12px}
  .logo-text{display:none}
  .header-inner{gap:8px;padding:0 10px}
  .search-form{max-width:none}
  .btn-outline{display:none}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px 10px}
  .deal-text{font-size:11px}
  .btn-deal,.coupon-box{padding:6px 8px;font-size:11px}
  .sidebar{width:80%}
}