/*
Theme Name: VuaSan88 Review Dark
Author: Trần Quang Minh
Description: Giao diện đánh giá nhà cái tối màu dành cho thị trường Việt Nam: header dính, hero lớn, lưới bài viết có huy hiệu ngày, khu chuyên mục trò chơi, bảng khuyến mãi và chân trang bốn cột.
Version: 1.0.0
Requires at least: 5.6
Tested up to: 6.6
Requires PHP: 7.0
License: GNU General Public License v2 or later
Text Domain: vuasan88
Tags: dark, entertainment, review, grid-layout, custom-menu, featured-images, translation-ready
*/

/* ============ BIẾN & NỀN TẢNG ============ */
:root{
  --vsx-bg:#0b0d12;
  --vsx-bg-2:#10131b;
  --vsx-surface:#161a26;
  --vsx-surface-2:#1c2132;
  --vsx-line:#262c40;
  --vsx-red:#e5232e;
  --vsx-red-2:#ff4b55;
  --vsx-gold:#f0b429;
  --vsx-gold-2:#ffd76a;
  --vsx-text:#e8eaf2;
  --vsx-mute:#9aa3b8;
  --vsx-radius:14px;
  --vsx-shadow:0 14px 40px rgba(0,0,0,.45);
  --vsx-font-display:'Bebas Neue', 'Arial Narrow', sans-serif;
  --vsx-font-body:'Be Vietnam Pro', 'Segoe UI', sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--vsx-bg);
  color:var(--vsx-text);
  font-family:var(--vsx-font-body);
  font-size:16px;
  line-height:1.7;
  background-image:
    radial-gradient(900px 420px at 85% -80px, rgba(229,35,46,.16), transparent 60%),
    radial-gradient(700px 380px at -120px 30%, rgba(240,180,41,.07), transparent 55%);
  background-repeat:no-repeat;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--vsx-gold);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--vsx-gold-2)}
::selection{background:var(--vsx-red);color:#fff}
.vsx-wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.vsx-sr{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* ============ NÚT CTA DẠNG VIÊN NÉN ============ */
.vsx-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 26px;border-radius:999px;border:0;cursor:pointer;
  font-family:var(--vsx-font-body);font-weight:700;font-size:14px;letter-spacing:.04em;
  background:linear-gradient(135deg,var(--vsx-red-2),var(--vsx-red) 55%,#a80f18);
  color:#fff !important;text-transform:uppercase;
  box-shadow:0 8px 22px rgba(229,35,46,.38), inset 0 1px 0 rgba(255,255,255,.22);
  transition:transform .18s ease, box-shadow .18s ease, filter .18s ease;
}
.vsx-btn:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 12px 28px rgba(229,35,46,.5)}
.vsx-btn--ghost{
  background:transparent;color:var(--vsx-gold) !important;
  border:2px solid var(--vsx-gold);box-shadow:none;
}
.vsx-btn--ghost:hover{background:rgba(240,180,41,.12)}
.vsx-btn--sm{padding:8px 18px;font-size:12px}
.vsx-btn--lg{padding:15px 38px;font-size:16px}

/* ============ HEADER DÍNH ============ */
.vsx-topbar{
  position:sticky;top:0;z-index:99;
  background:rgba(11,13,18,.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--vsx-line);
}
.vsx-topbar-inner{
  display:flex;align-items:center;gap:28px;
  min-height:72px;padding:10px 0;
}
.vsx-logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.vsx-logo img{width:46px;height:46px;border-radius:10px;object-fit:cover}
.vsx-logo-name{
  font-family:var(--vsx-font-display);font-size:28px;letter-spacing:.06em;
  color:#fff;line-height:1;
}
.vsx-logo-name em{font-style:normal;color:var(--vsx-red-2)}
.vsx-nav{flex:1;min-width:0}
.vsx-nav ul{display:flex;flex-wrap:wrap;gap:4px;list-style:none}
.vsx-nav a{
  display:block;padding:8px 14px;border-radius:8px;
  color:var(--vsx-text);font-weight:600;font-size:14px;
}
.vsx-nav a:hover,.vsx-nav .current-menu-item>a{color:var(--vsx-gold);background:rgba(240,180,41,.08)}
.vsx-cta-group{display:flex;align-items:center;gap:10px;flex-shrink:0}
.vsx-burger{display:none}

/* ============ HERO ============ */
.vsx-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--vsx-line)}
.vsx-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5}
.vsx-hero-shade{position:absolute;inset:0;background:linear-gradient(100deg, rgba(11,13,18,.96) 22%, rgba(11,13,18,.55) 60%, rgba(11,13,18,.25))}
.vsx-hero-inner{position:relative;z-index:2;max-width:720px;padding:84px 0 92px}
.vsx-hero-kicker{
  display:inline-block;padding:6px 16px;border-radius:999px;margin-bottom:18px;
  border:1px solid rgba(240,180,41,.5);color:var(--vsx-gold);
  font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
}
.vsx-hero h1{
  font-family:var(--vsx-font-display);
  font-size:clamp(44px,6vw,76px);line-height:1.02;letter-spacing:.02em;
  color:#fff;text-transform:uppercase;margin-bottom:18px;
}
.vsx-hero h1 span{color:var(--vsx-red-2)}
.vsx-hero-desc{color:#c9cfdd;font-size:17px;max-width:600px;margin-bottom:30px}
.vsx-hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.vsx-hero-trust{display:flex;flex-wrap:wrap;gap:22px;margin-top:34px}
.vsx-hero-trust li{list-style:none;color:var(--vsx-mute);font-size:13px;display:flex;align-items:center;gap:8px}
.vsx-hero-trust b{color:var(--vsx-gold);font-size:18px;font-family:var(--vsx-font-display);letter-spacing:.04em}

/* ============ TIÊU ĐỀ KHỐI ============ */
.vsx-block{padding:64px 0}
.vsx-block--alt{background:var(--vsx-bg-2);border-top:1px solid var(--vsx-line);border-bottom:1px solid var(--vsx-line)}
.vsx-block-head{margin-bottom:34px;position:relative;padding-left:20px}
.vsx-block-head::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:6px;border-radius:3px;
  background:linear-gradient(var(--vsx-red-2),var(--vsx-gold));
}
.vsx-block-head h2{
  font-family:var(--vsx-font-display);font-size:clamp(30px,4vw,44px);
  letter-spacing:.03em;text-transform:uppercase;color:#fff;line-height:1.1;
}
.vsx-block-head p{color:var(--vsx-mute);margin-top:6px;max-width:700px}

/* ============ LƯỚI BÀI VIẾT ============ */
.vsx-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.vsx-card{
  position:relative;background:var(--vsx-surface);
  border:1px solid var(--vsx-line);border-radius:var(--vsx-radius);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.vsx-card:hover{transform:translateY(-6px);border-color:rgba(229,35,46,.55);box-shadow:var(--vsx-shadow)}
.vsx-card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--vsx-surface-2)}
.vsx-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.vsx-card:hover .vsx-card-media img{transform:scale(1.06)}
.vsx-date{
  position:absolute;top:12px;left:12px;z-index:2;
  background:var(--vsx-red);color:#fff;font-size:12px;font-weight:700;
  padding:5px 12px;border-radius:999px;letter-spacing:.03em;
  box-shadow:0 4px 14px rgba(229,35,46,.45);
}
.vsx-card-cat{
  position:absolute;top:12px;right:12px;z-index:2;
  background:rgba(11,13,18,.75);color:var(--vsx-gold);
  font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;
  padding:5px 12px;border-radius:999px;border:1px solid rgba(240,180,41,.35);
}
.vsx-card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.vsx-card-title{font-size:17px;line-height:1.45;font-weight:700}
.vsx-card-title a{color:var(--vsx-text)}
.vsx-card-title a:hover{color:var(--vsx-gold)}
.vsx-card-excerpt{color:var(--vsx-mute);font-size:14px;flex:1}
.vsx-card-more{font-size:13px;font-weight:700;color:var(--vsx-red-2);letter-spacing:.05em;text-transform:uppercase}
.vsx-card-more:hover{color:var(--vsx-gold)}

/* ============ PHÂN TRANG ============ */
.vsx-pager{margin-top:44px;text-align:center}
.vsx-pager .nav-links{display:flex;justify-content:center;gap:8px;flex-wrap:wrap}
.vsx-pager .page-numbers{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:42px;height:42px;padding:0 12px;border-radius:10px;
  border:1px solid var(--vsx-line);background:var(--vsx-surface);
  color:var(--vsx-text);font-weight:600;font-size:14px;
}
.vsx-pager .page-numbers.current{background:var(--vsx-red);border-color:var(--vsx-red);color:#fff}
.vsx-pager a.page-numbers:hover{border-color:var(--vsx-gold);color:var(--vsx-gold)}

/* ============ KHỐI THẾ MẠNH ============ */
.vsx-points{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.vsx-point{
  background:linear-gradient(160deg,var(--vsx-surface),var(--vsx-surface-2));
  border:1px solid var(--vsx-line);border-radius:var(--vsx-radius);
  padding:30px 26px;position:relative;overflow:hidden;
}
.vsx-point::after{
  content:"";position:absolute;right:-40px;top:-40px;width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle, rgba(229,35,46,.22), transparent 70%);
}
.vsx-point-num{font-family:var(--vsx-font-display);font-size:44px;color:var(--vsx-gold);line-height:1}
.vsx-point h3{font-size:18px;margin:12px 0 8px;color:#fff}
.vsx-point p{color:var(--vsx-mute);font-size:14px}

/* ============ CHUYÊN MỤC (POSTER) ============ */
.vsx-cats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.vsx-cat-tile{
  position:relative;border-radius:var(--vsx-radius);overflow:hidden;
  border:1px solid var(--vsx-line);aspect-ratio:4/5;display:block;
}
.vsx-cat-tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.vsx-cat-tile:hover img{transform:scale(1.08)}
.vsx-cat-cap{
  position:absolute;inset:auto 0 0 0;padding:44px 18px 18px;
  background:linear-gradient(transparent, rgba(8,9,13,.94));
  text-align:center;
}
.vsx-cat-cap b{display:block;font-family:var(--vsx-font-display);font-size:24px;letter-spacing:.05em;color:#fff;text-transform:uppercase}
.vsx-cat-cap span{font-size:12px;color:var(--vsx-gold)}

/* ============ KHU TRÒ CHƠI (ICON 4 Ô) ============ */
.vsx-games{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.vsx-game{
  background:var(--vsx-surface);border:1px solid var(--vsx-line);border-radius:var(--vsx-radius);
  padding:26px 20px;text-align:center;transition:transform .22s ease, border-color .22s ease;
}
.vsx-game:hover{transform:translateY(-6px);border-color:var(--vsx-gold)}
.vsx-game img{width:96px;height:96px;border-radius:22px;margin:0 auto 14px;object-fit:cover;box-shadow:0 10px 26px rgba(0,0,0,.5)}
.vsx-game h3{font-size:17px;color:#fff;margin-bottom:6px}
.vsx-game p{color:var(--vsx-mute);font-size:13px;margin-bottom:14px}

/* ============ BẢNG KHUYẾN MÃI ============ */
.vsx-table-wrap{overflow-x:auto;border:1px solid var(--vsx-line);border-radius:var(--vsx-radius)}
.vsx-table{width:100%;border-collapse:collapse;background:var(--vsx-surface);min-width:640px}
.vsx-table th{
  background:var(--vsx-surface-2);color:var(--vsx-gold);text-transform:uppercase;
  font-size:12px;letter-spacing:.1em;padding:15px 18px;text-align:left;
  border-bottom:2px solid var(--vsx-red);
}
.vsx-table td{padding:15px 18px;border-top:1px solid var(--vsx-line);font-size:14px;color:var(--vsx-text)}
.vsx-table tr:hover td{background:rgba(240,180,41,.04)}
.vsx-table .vsx-hot{color:var(--vsx-red-2);font-weight:700}

/* ============ ĐÁNH GIÁ NGƯỜI DÙNG ============ */
.vsx-quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.vsx-quote{
  background:var(--vsx-surface);border:1px solid var(--vsx-line);border-left:4px solid var(--vsx-gold);
  border-radius:var(--vsx-radius);padding:26px;
}
.vsx-quote p{color:#c9cfdd;font-size:14px;font-style:italic}
.vsx-quote-who{display:flex;align-items:center;gap:12px;margin-top:18px}
.vsx-quote-who b{display:block;font-size:14px;color:#fff}
.vsx-quote-who span{font-size:12px;color:var(--vsx-mute)}
.vsx-stars{color:var(--vsx-gold);letter-spacing:2px;font-size:14px;margin-bottom:12px}

/* ============ TRANG BÀI VIẾT + SIDEBAR ============ */
.vsx-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:36px;align-items:start;padding:48px 0}
.vsx-article-head h1{font-family:var(--vsx-font-display);font-size:clamp(34px,4.5vw,52px);letter-spacing:.02em;color:#fff;text-transform:uppercase;line-height:1.08}
.vsx-article-meta{display:flex;flex-wrap:wrap;gap:16px;color:var(--vsx-mute);font-size:13px;margin:14px 0 26px}
.vsx-article-meta span{display:inline-flex;align-items:center;gap:6px}
.vsx-article-cover{border-radius:var(--vsx-radius);overflow:hidden;border:1px solid var(--vsx-line);margin-bottom:30px}
.vsx-article-body{color:#d4d9e6;font-size:16.5px}
.vsx-article-body h2,.vsx-article-body h3{color:#fff;margin:30px 0 14px;line-height:1.3}
.vsx-article-body h2{font-size:26px;border-left:4px solid var(--vsx-red);padding-left:14px}
.vsx-article-body h3{font-size:20px}
.vsx-article-body p{margin-bottom:16px}
.vsx-article-body ul,.vsx-article-body ol{margin:0 0 18px 22px}
.vsx-article-body img{border-radius:10px}
.vsx-article-body blockquote{
  border-left:4px solid var(--vsx-gold);background:var(--vsx-surface);
  padding:16px 20px;border-radius:0 10px 10px 0;margin:20px 0;color:#c9cfdd;font-style:italic;
}
.vsx-cta-box{
  margin:34px 0;padding:28px;border-radius:var(--vsx-radius);text-align:center;
  background:linear-gradient(135deg, rgba(229,35,46,.18), rgba(240,180,41,.10)), var(--vsx-surface);
  border:1px dashed rgba(240,180,41,.5);
}
.vsx-cta-box h3{font-family:var(--vsx-font-display);font-size:28px;letter-spacing:.04em;color:#fff;text-transform:uppercase;margin-bottom:8px}
.vsx-cta-box p{color:var(--vsx-mute);font-size:14px;margin-bottom:18px}
.vsx-postnav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:40px}
.vsx-postnav a{
  display:block;background:var(--vsx-surface);border:1px solid var(--vsx-line);
  border-radius:12px;padding:16px 18px;font-size:14px;color:var(--vsx-text);
}
.vsx-postnav a:hover{border-color:var(--vsx-gold)}
.vsx-postnav small{display:block;color:var(--vsx-mute);font-size:11px;text-transform:uppercase;letter-spacing:.1em;margin-bottom:6px}
.vsx-postnav .vsx-next{text-align:right}

/* sidebar */
.vsx-sidebar{position:sticky;top:92px;display:flex;flex-direction:column;gap:24px}
.vsx-widget{background:var(--vsx-surface);border:1px solid var(--vsx-line);border-radius:var(--vsx-radius);padding:22px}
.vsx-widget-title,.vsx-side-title{
  font-family:var(--vsx-font-display);font-size:22px;letter-spacing:.05em;color:#fff;
  text-transform:uppercase;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--vsx-red);
}
.vsx-side-list{list-style:none}
.vsx-side-list li{border-top:1px solid var(--vsx-line)}
.vsx-side-list li:first-child{border-top:0}
.vsx-side-list a{display:block;padding:11px 2px;font-size:14px;color:var(--vsx-text)}
.vsx-side-list a:hover{color:var(--vsx-gold)}
.vsx-side-list .vsx-mini{display:flex;gap:12px;align-items:center}
.vsx-side-list .vsx-mini img{width:64px;height:48px;object-fit:cover;border-radius:8px;flex-shrink:0}
.vsx-side-list .vsx-mini time{display:block;font-size:11px;color:var(--vsx-mute)}

/* ============ TÌM KIẾM / TIÊU ĐỀ TRANG CON ============ */
.vsx-pagehead{
  padding:52px 0 40px;border-bottom:1px solid var(--vsx-line);
  background:linear-gradient(180deg, rgba(229,35,46,.10), transparent);
}
.vsx-pagehead h1{font-family:var(--vsx-font-display);font-size:clamp(36px,5vw,56px);color:#fff;text-transform:uppercase;letter-spacing:.02em;line-height:1.05}
.vsx-pagehead p{color:var(--vsx-mute);margin-top:10px;max-width:760px}
.vsx-searchform{display:flex;gap:10px;max-width:640px;margin-top:22px}
.vsx-searchform input[type="search"]{
  flex:1;background:var(--vsx-surface);border:1px solid var(--vsx-line);color:var(--vsx-text);
  border-radius:999px;padding:13px 22px;font-family:inherit;font-size:15px;outline:none;
}
.vsx-searchform input[type="search"]:focus{border-color:var(--vsx-gold)}

/* ============ 404 ============ */
.vsx-404{text-align:center;padding:110px 0}
.vsx-404 b{font-family:var(--vsx-font-display);font-size:120px;line-height:1;color:var(--vsx-red-2);display:block}
.vsx-404 h1{font-family:var(--vsx-font-display);font-size:36px;color:#fff;letter-spacing:.05em;text-transform:uppercase;margin:14px 0 10px}
.vsx-404 p{color:var(--vsx-mute);margin-bottom:26px}

/* ============ FOOTER ============ */
.vsx-footer{background:#080a0e;border-top:1px solid var(--vsx-line);margin-top:64px}
.vsx-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding:56px 0 40px}
.vsx-footer h4{
  font-family:var(--vsx-font-display);font-size:20px;letter-spacing:.06em;color:#fff;
  text-transform:uppercase;margin-bottom:16px;
}
.vsx-footer p,.vsx-footer li{color:var(--vsx-mute);font-size:13.5px}
.vsx-footer ul{list-style:none}
.vsx-footer li{padding:5px 0}
.vsx-footer li a{color:var(--vsx-mute)}
.vsx-footer li a:hover{color:var(--vsx-gold)}
.vsx-footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.vsx-footer-logo img{width:40px;height:40px;border-radius:9px}
.vsx-footer-logo b{font-family:var(--vsx-font-display);font-size:24px;color:#fff;letter-spacing:.05em}
.vsx-footer-bottom{border-top:1px solid var(--vsx-line);padding:26px 0 34px;text-align:center}
.vsx-footer-bottom .vsx-warn{color:var(--vsx-mute);font-size:12.5px;max-width:860px;margin:18px auto 0;line-height:1.8}
.vsx-footer-copy{color:#5d6579;font-size:12px;margin-top:14px}

/* ============ RESPONSIVE ============ */
@media (max-width:1080px){
  .vsx-grid,.vsx-points,.vsx-quotes{grid-template-columns:repeat(2,1fr)}
  .vsx-cats,.vsx-games{grid-template-columns:repeat(2,1fr)}
  .vsx-layout{grid-template-columns:1fr}
  .vsx-sidebar{position:static}
  .vsx-footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .vsx-nav{display:none}
  .vsx-nav.vsx-open{
    display:block;position:absolute;top:100%;left:0;right:0;
    background:var(--vsx-bg-2);border-bottom:1px solid var(--vsx-line);padding:14px 20px;
  }
  .vsx-nav.vsx-open ul{flex-direction:column}
  .vsx-burger{
    display:inline-flex;align-items:center;justify-content:center;
    width:42px;height:42px;border-radius:10px;border:1px solid var(--vsx-line);
    background:var(--vsx-surface);color:#fff;font-size:18px;cursor:pointer;
  }
  .vsx-topbar-inner{flex-wrap:wrap;gap:14px}
  .vsx-cta-group{margin-left:auto}
  .vsx-cta-group .vsx-btn--ghost{display:none}
  .vsx-hero-inner{padding:56px 0}
  .vsx-grid,.vsx-points,.vsx-quotes,.vsx-cats,.vsx-games{grid-template-columns:1fr}
  .vsx-postnav{grid-template-columns:1fr}
  .vsx-footer-grid{grid-template-columns:1fr;padding:40px 0 26px}
  .vsx-block{padding:44px 0}
}

/* Logo động: kích thước ràng buộc thuần CSS (spec). */
.site-logo{max-height:48px;width:auto}
@media (max-width:782px){.site-logo{max-height:40px;width:auto}}