/* site002 — giao diện tối, ưu tiên mobile, tối ưu SEO + Core Web Vitals */

/* ========== Reset & cơ bản ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{background:#000;color:#e0e0e0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,sans-serif;font-size:.9375rem;line-height:1.6;min-height:100vh}
img{max-width:100%;height:auto;display:block;border:0}
a{color:#e0e0e0;text-decoration:none}
a:hover,a:focus{color:#fff}
ul,ol{list-style:none}
button{cursor:pointer;border:0;background:0 0;font:inherit}
input,textarea,select{font:inherit;border:0;outline:0}

/* ========== Bố cục ========== */
.container{width:100%;max-width: 1140px;margin:0 auto;padding:0 12px}
.layout{display:flex;gap:20px;align-items:flex-start}
.main{flex:1;min-width:0}
.banner-ad-box{max-width: 1140px;margin-left:auto;margin-right:auto;padding:4px 12px;gap:1px;}
.banner-ad {display:grid;grid-template-columns:1fr;}
.banner-ad a{display:flex;justify-content:center;width:100%;padding:0;margin:0;line-height:0;}
.banner-ad a img{width:100%;max-width:900px;height:auto;padding:0;margin:0;line-height:0;}
#popup-ad-box{position:fixed;inset:0;background:rgba(0,0,0,0.6);z-index:99999999;display:flex;justify-content:center;align-items:center;padding:15px;box-sizing:border-box;}
#popup-ad-body{position:relative;display:inline-block;}
#popup-ad-body a,#popup-ad-body img{display:block;padding:0;margin:0;}
#popup-ad-body img{width:auto;max-width:min(82vw,460px);height:auto;max-height:90vh;}
#popup-ad-close{position:absolute;top:-12px;right:-12px;width:32px;height:32px;border-radius:50%;background:#000;color:#fff;border:2px solid #ff0000;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:28px;line-height:28px;padding-bottom:3px;user-select:none;box-sizing:border-box;}
#popup-ad-close:hover,#popup-ad-bottom-close:hover{background:#ff0000;}
#popup-ad-bottom-close{position:absolute;left:50%;top:calc(100% + 10px);transform:translateX(-50%);width:42px;height:42px;border-radius:50%;background:#000;color:#fff;border:2px solid #ff0000;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:32px;line-height:32px;padding-bottom:3px;box-sizing:border-box;user-select:none;}

/* ========== Skip link (trợ năng) ========== */
.skip-link{position:absolute;top:-40px;left:0;background:#e50914;color:#fff;padding:8px 16px;z-index:100;font-size:.875rem;border-radius:0 0 4px 0;transition:top .2s}
.skip-link:focus{top:0}

/* ========== Header ========== */
.site-header{background:#080808;position:sticky;top:0;z-index:200}
.header-inner{display:flex;flex-direction:column;width:100%;margin:0;border-bottom:1px solid #1c1c1c}

/* Hàng trên: logo trái, tìm kiếm + hamburger phải */
.header-top{display:flex;align-items:center;justify-content:space-between;height:56px;width:100%;padding:0 10px;max-width: 1140px;margin:0 auto;}
.header-top-right{display:flex;align-items:center;gap:8px;flex-shrink:0}
.site-logo{display:flex;align-items:center;flex-shrink:0}
.site-logo img{width:auto;height:40px;object-fit:contain}
@media(min-width:960px){.site-logo img{width:auto;height:46px;}}
@media(max-width:760px){.site-logo img{width:auto;height:30px;}}
@media(max-width:500px){.site-logo img{width:auto;height:27px;}.header-inner{padding:0 5px;}.search-input{padding: 4px 5px !important;font-size:0.84rem !important;}.search-btn{padding: 4px 8px !important;}}
@media(max-width:430px){.site-logo img{width:auto;height:25px;}.header-inner{padding:0 4px;}.search-input{padding: 3px 4px !important;font-size:0.78rem !important;}.search-btn{padding: 3px 8px !important;}}
@media(max-width:400px){.site-logo img{width:auto;height:22px;}.header-inner{padding:0 4px;}.search-input{padding: 3px 4px !important;}.search-btn{padding: 3px 8px !important;}}
@media(max-width:360px){.site-logo img{width:auto;height:18px;}}

.site-logo-text{font-size:1.1rem;font-weight:700;color:#fff;white-space:nowrap}

/* Hàng dưới: menu điều hướng căn giữa (chỉ hiện trên PC) */
.site-nav{margin-top:12px;width:100%;margin:0 auto;display:flex;align-items:center;justify-content:center;gap:4px;padding:0;border-top:1px solid #1e1e1e;overflow-x:auto;scrollbar-width:none;background:#141414;}
.site-nav::-webkit-scrollbar{display:none}
.nav-link{
  position:relative;
  padding:10px 16px;
  border-radius:0;
  font-size:.875rem;
  font-weight:500;
  letter-spacing:.04em;
  text-transform:uppercase;
  white-space:nowrap;
  color:#777;
  transition:color .2s;
}
/* Gạch chân mở rộng từ giữa ra hai bên khi hover/active */
.nav-link::after{
  content:'';
  position:absolute;
  bottom:0;left:0;
  width:100%;height:2px;
  background:#e50914;
  border-radius:2px 2px 0 0;
  transform:scaleX(0);
  transition:transform .25s ease;
  transform-origin:center;
}
.nav-link:hover{color:#ddd}
.nav-link:hover::after{transform:scaleX(.8)}
.nav-link.active{color:#fff;font-weight:700}
.nav-link.active::after{transform:scaleX(1)}

/* Ô tìm kiếm */
.header-search{flex-shrink:0}
.search-form{display:flex;align-items:center;background:#111;border:1px solid #2a2a2a;border-radius:20px;overflow:hidden;transition:border-color .2s}
.search-form:focus-within{border-color:#555}
.search-input{background:0 0;padding:6px 8px;font-size:.875rem;color:#e0e0e0;width:160px}
.search-input::placeholder{color:#666}
.search-btn{padding:6px 8px;color:#aaa;transition:color .15s}
.search-btn:hover{color:#fff}
.search-btn svg{padding-top:2px;}

/* Nút hamburger (ẩn trên PC, hiện trên mobile) */
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:36px;height:36px;padding:6px;background:0 0;border-radius:4px;cursor:pointer;flex-shrink:0;transition:background .15s}
.nav-toggle:hover{background:#1a1a1a}
.nav-toggle-bar{display:block;width:100%;height:2px;background:#ccc;border-radius:2px;transition:transform .25s,opacity .2s,background .15s}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Lớp phủ nền khi mở menu mobile */
.nav-backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:190;backdrop-filter:blur(2px)}
.nav-backdrop.open{display:block}

/* ===== Mobile ≤768px: ẩn menu PC, dùng hamburger dropdown ===== */
@media(max-width:768px){
  .nav-toggle{display:flex}
  /* ẩn hàng nav thứ hai, chuyển sang dropdown cố định */
  .site-nav{
    display:none;
    position:fixed;
    top:52px;
    left:0;right:0;
    background:#0a0a0a;
    border-top:none;
    border-bottom:1px solid #2a2a2a;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:0;
    overflow-x:unset;
    overflow-y:auto;
    max-height:calc(100vh - 52px);
    z-index:195;
    padding:8px 0;
    box-shadow:0 8px 24px rgba(0,0,0,.7);
  }
  .site-nav.open{display:flex}
  .nav-link{
    padding:14px 20px;
    font-size:1rem;
    border-radius:0;
    border-bottom:1px solid #181818;
    color:#bbb;
    letter-spacing:0;
    text-transform:none;
    font-weight:500;
  }
  .nav-link:last-child{border-bottom:0}
  /* mobile dropdown: tắt animation gạch chân, dùng highlight nền */
  .nav-link::after{display:none}
  .nav-link:hover,.nav-link.active{background:#181818;color:#fff;font-weight:600}
  .search-input{width:90px}
}
@media(max-width:420px){.search-input{width:80px}}

/* ========== Breadcrumb ========== */
.breadcrumb{padding:10px 0;font-size:.8125rem;color:#666}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:4px;align-items:center}
.breadcrumb li{display:flex;align-items:center;gap:4px}
.breadcrumb li+li::before{content:"›";color:#444}
.breadcrumb a{color:#888}
.breadcrumb a:hover{color:#ccc}
.breadcrumb [aria-current="page"]{color:#ccc}

/* ========== Nội dung chính ========== */
.main-content{padding:4px 0}
.page-title{font-size:1.375rem;font-weight:700;color:#f0f0f0;margin-bottom:16px;line-height:1.3}
.section-title{font-size:1.0625rem;font-weight:600;color:#d0d0d0;margin:20px 0 12px;padding-left:8px;border-left:3px solid #e50914}

/* ========== Lưới card video ========== */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
@media(min-width:480px){.video-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}}
@media(min-width:768px){.video-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}}
@media(min-width:1024px){.video-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}}

/* ========== Card video ========== */
.video-card{display:flex;flex-direction:column;justify-content:space-between;background:#1f1f1f;border-radius:6px;overflow:hidden;border:1px solid #282828;transition:border-color .2s,transform .2s}
.video-card:hover{border-color:#666;}
.video-thumb{display:block;position:relative;aspect-ratio:4/3;overflow:hidden;background:#111}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.video-duration{position:absolute;bottom:6px;right:6px;background:rgba(0,0,0,.82);color:#fff;font-size:.75rem;padding:2px 5px;border-radius:3px;line-height:1.4;pointer-events:none}
.video-info{flex:1;display:flex;flex-direction:column;justify-content:space-between;padding:8px 10px}
.video-title{flex:1;display:flex;justify-content:center;align-items:center;font-size:.8rem;font-weight:600;color:#ddd;line-height:1.35;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:4px}
.video-title a{color:inherit}
.video-title a:hover{color:#fff}
.video-meta{font-size:.75rem;color:#666;display:flex;justify-content:space-between;align-items:center;gap:4px}
.meta-item{display:flex;align-items:center;gap:3px;min-width:0}
.meta-icon{width:13px;height:13px;flex-shrink:0;opacity:.7}

/* ========== Trang xem phim ========== */
.video-player-wrap{background:#000;aspect-ratio:16/9;width:100%;border-radius:6px;overflow:hidden;border:1px solid #1c1c1c}
.video-player-wrap iframe{width:100%;height:100%;border:0}
.video-detail-info{margin-top:14px}
.video-detail-title{text-align:center;font-size:clamp(1rem, 1.3rem, 1.75rem);font-weight:700;color:#f0f0f0;line-height:1.35;margin-top:14px;margin-bottom:10px}
/* PC: stats bên trái, vote bên phải, cùng hàng; mobile: 2 hàng căn giữa */
.video-actions-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.video-stats{display:flex;gap:12px;flex-wrap:wrap;align-items:center;justify-content:flex-end}
.stat-item{font-size:.8125rem;color:#888;display:flex;align-items:center;gap:5px}
.stat-icon{font-size:.9rem}
.vote-btns{display:flex;gap:8px;align-items:center;justify-content:flex-start}
@media(max-width:600px){
  .video-actions-row{flex-direction:column;align-items:center;gap:10px}
  .video-stats{justify-content:center}
  .vote-btns{justify-content:center}
}
.vote-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;border-radius:4px;background:#1a1a1a;color:#ccc;font-size:.875rem;border:1px solid #2a2a2a;transition:background .2s,color .2s,border-color .2s;position:relative;overflow:hidden}
.vote-btn:hover{background:#252525;color:#fff}
.vote-btn.active-up{background:#1a3a1a;color:#4caf50;border-color:#2d5a2d}
.vote-btn.active-down{background:#3a1a1a;color:#f44336;border-color:#5a2d2d}
/* Animation nút bật nảy */
@keyframes vote-pop{0%{transform:scale(1)}30%{transform:scale(1.22)}65%{transform:scale(.93)}85%{transform:scale(1.06)}100%{transform:scale(1)}}
.vote-btn.vote-anim{animation:vote-pop .4s cubic-bezier(.36,.07,.19,.97) both}
/* Animation số đếm nhảy */
@keyframes count-pop{0%{transform:scale(1)}40%{transform:scale(1.5)}100%{transform:scale(1)}}
.vote-btn .vote-count.count-anim{display:inline-block;animation:count-pop .35s ease-out}
/* Hiệu ứng +1 bay lên */
@keyframes float-vote{0%{opacity:1;transform:translateY(0) scale(1)}100%{opacity:0;transform:translateY(-52px) scale(.75)}}
.vote-float{position:fixed;font-size:.9rem;font-weight:700;pointer-events:none;animation:float-vote .75s ease-out forwards;z-index:9999;text-shadow:0 1px 4px rgba(0,0,0,.6)}
.vote-float.up{color:#4caf50}
.vote-float.down{color:#f44336}
.video-desc{font-size:.875rem;color:#aaa;line-height:1.7;padding:12px 14px;background:#0c0c0c;border-radius:6px;border:1px solid #1c1c1c;margin-bottom:16px}
.video-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.tag-link{font-size:.8125rem;padding:3px 10px;background:#111;border:1px solid #2a2a2a;border-radius:12px;color:#aaa;transition:background .15s,color .15s}
.tag-link:hover{background:#1c1c1c;color:#e0e0e0}
.author-box{display:flex;align-items:center;gap:10px;padding:12px 14px;background:#0c0c0c;border-radius:6px;border:1px solid #1c1c1c;margin-bottom:16px;display:none;}
.author-avatar{width:44px;height:44px;border-radius:50%;object-fit:cover;background:#1a1a1a;flex-shrink:0}
.author-name{font-size:.9375rem;font-weight:600;color:#ddd}
.author-meta{font-size:.8125rem;color:#666}

/* ========== Phân trang ========== */
.pagination{display:flex;justify-content:center;gap:6px;flex-wrap:nowrap;padding:20px 0 8px;overflow-x:auto}
.page-link{min-width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:4px;background:#111;border:1px solid #2a2a2a;color:#bbb;font-size:.875rem;padding:0 8px;transition:background .15s,color .15s;flex-shrink:0}
.page-link.current,.page-link:hover{background:#e50914;border-color:#e50914;color:#fff;font-weight:700}
.page-link.disabled{opacity:.4;pointer-events:none}
@media(max-width:480px){
  .pagination{gap:3px;padding:14px 0 6px}
  .page-link{min-width:28px;height:28px;font-size:.75rem;padding:0 5px}
}

/* ========== Card danh mục / thẻ tag ========== */
/* Pill card dùng ở widget danh mục các trang khác */
.category-grid,.tag-grid{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.cat-card,.tag-card{display:flex;padding:6px 14px;justify-content:center;align-items:center;text-align:center;background:#0f0f0f;border:1px solid #1c1c1c;border-radius:6px;font-size:.875rem;color:#ccc;transition:background .15s,color .15s,border-color .15s}
.cat-card:hover,.tag-card:hover{background:#141414;color:#fff;border-color:#3a3a3a}
.cat-name,.tag-name{font-weight:600;margin-bottom:2px}
.cat-count,.tag-count{font-size:.75rem;color:#666}

/* ========== Kết quả tìm kiếm ========== */
.search-info{margin-bottom:16px;font-size:.875rem;color:#888}
.search-info em{color:#e0e0e0;font-style:normal;font-weight:600}

/* ========== Khu vực bình luận ========== */
.comment-section{margin-top:20px}
.comment-section-title{font-size:.9375rem;font-weight:700;color:#d0d0d0;margin-bottom:10px;padding-bottom:6px;border-bottom:1px solid #1c1c1c}
.comment-form{background:#0c0c0c;border:1px solid #1c1c1c;border-radius:6px;padding:12px;margin-bottom:16px}
.form-row{display:flex;gap:10px;flex-wrap:wrap}
.form-group{margin-bottom:8px}
.form-group label{display:block;font-size:.8125rem;color:#888;margin-bottom:4px}
.form-input{width:100%;background:#111;border:1px solid #2a2a2a;border-radius:4px;padding:6px 10px;color:#e0e0e0;font-size:.875rem;transition:border-color .2s}
.form-input:focus{border-color:#555;outline:0}
.form-input--captcha{width:80px;flex-shrink:0}
.form-textarea{width:100%;background:#111;border:1px solid #2a2a2a;border-radius:4px;padding:6px 10px;color:#e0e0e0;font-size:.875rem;resize:vertical;transition:border-color .2s}
.form-textarea:focus{border-color:#555;outline:0}
/* captcha + nút gửi cùng hàng, căn phải */
.form-submit-row{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex-wrap:wrap;margin-top:4px}
.captcha-row{display:flex;align-items:center;gap:6px}
.captcha-img{height:28px;border-radius:3px;cursor:pointer;background:#1a1a1a;flex-shrink:0}
.captcha-refresh{font-size:1rem;color:#888;cursor:pointer;line-height:1;padding:2px}
.captcha-refresh:hover{color:#ccc}
.btn-submit-comment{background:#e50914;color:#fff;padding:6px 16px;border-radius:4px;font-size:.875rem;font-weight:600;transition:background .15s;white-space:nowrap}
.btn-submit-comment:hover{background:#c4070f}
.btn-submit-comment:disabled{background:#5a0409;cursor:not-allowed}
.comment-msg{font-size:.8125rem;padding:8px 12px;border-radius:4px;margin-top:10px;display:none}
.comment-msg.success{background:#0d2e0d;color:#4caf50;border:1px solid #1e5c1e}
.comment-msg.error{background:#2e0d0d;color:#f44336;border:1px solid #5c1e1e}
/* Danh sách bình luận */
.comment-list{margin-top:8px}
.comment-item{padding:14px 0;border-bottom:1px solid #141414}
.comment-item:last-child{border-bottom:0}
.comment-header{display:flex;align-items:baseline;gap:10px;margin-bottom:6px}
.comment-author{font-size:.875rem;font-weight:600;color:#ccc}
.comment-author a{color:inherit}
.comment-author a:hover{color:#fff}
.comment-time{font-size:.75rem;color:#555}
.comment-content{font-size:.875rem;color:#aaa;line-height:1.65}
.comment-reply-to{color:#888;font-size:.8125rem;margin-bottom:4px}
.comment-reply-to span{color:#ccc}
.btn-reply{font-size:.75rem;color:#666;margin-top:6px;padding:2px 0}
.btn-reply:hover{color:#ccc}
.comment-replies{margin-left:20px;border-left:2px solid #1a1a1a;padding-left:14px;margin-top:10px}
.load-more-btn{display:block;width:100%;padding:10px;text-align:center;background:#111;border:1px solid #2a2a2a;border-radius:4px;color:#888;font-size:.875rem;margin-top:12px;transition:background .15s,color .15s}
.load-more-btn:hover{background:#1a1a1a;color:#ccc}

/* ========== Trang thông tin ========== */
.info-page{max-width:840px}
.info-page h1{font-size:1.5rem;font-weight:700;color:#f0f0f0;margin-bottom:20px}
.info-page h2{font-size:1.125rem;font-weight:600;color:#d0d0d0;margin:20px 0 10px}
.info-page p{font-size:.9375rem;color:#aaa;line-height:1.8;margin-bottom:12px}
.info-page ul{color:#aaa;font-size:.9375rem;line-height:1.8;margin:0 0 12px 20px;list-style:disc}
.info-page a{color:#aaa;text-decoration:underline}
.info-page a:hover{color:#fff}

/* ========== Trang lỗi ========== */
.error-page{text-align:center;padding:60px 20px}
.error-code{font-size:5rem;font-weight:800;color:#1c1c1c;line-height:1}
.error-msg{font-size:1.25rem;color:#888;margin:12px 0 24px}
.btn-home{display:inline-block;padding:10px 24px;background:#e50914;color:#fff;border-radius:4px;font-size:.9375rem;font-weight:600}
.btn-home:hover{background:#c4070f;color:#fff}

/* ========== Video liên quan (dùng chung .video-grid + .video-card) ========== */

/* ========== Footer ========== */
.site-footer{background:#080808;border-top:1px solid #1c1c1c;margin-top:32px;padding:24px 0}
.footer-inner{max-width: 1140px;margin:0 auto;padding:0 12px}
.footer-links{display:flex;justify-content:center;flex-wrap:wrap;gap:8px 16px;margin-bottom:14px}
.footer-link{font-size:.8125rem;color:#666}
.footer-link:hover{color:#aaa}
.footer-copy{font-size:.75rem;color:#444;text-align:center;}
.footer-desc{font-size:.8125rem;color:#555;margin-top:8px;line-height:1.6}

/* ========== Trang nhúng player ========== */
.embed-wrap{background:#000;width:100vw;height:100vh;display:flex;align-items:center;justify-content:center}
.embed-wrap iframe{width:100%;height:100%;border:0}

/* ========== Tiện ích ========== */
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.text-muted{color:#666}
.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}
.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}