:root{--bg:#f4f7ff;--bg2:#eaf0ff;--card:#ffffff;--line:#dbe3f7;--tx:#1b2347;--mut:#5f6b94;--ac:#2f6df6;--ac2:#7c4dff;--ok:#16a34a;--r:14px}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--tx);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;min-height:100vh;display:flex;flex-direction:column}
a{color:#2f6df6;text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
.main{flex:1;padding-top:8px;padding-bottom:32px}
.muted{color:var(--mut);font-size:14px}

/* header */
.hdr{background:linear-gradient(180deg,#ffffff,#f4f7ff);border-bottom:1px solid var(--line);box-shadow:0 2px 12px #2f6df61a;position:sticky;top:0;z-index:50}
.hdr-in{display:flex;align-items:center;gap:16px;padding-top:10px;padding-bottom:6px}
.logo{display:flex;align-items:center;gap:10px;color:var(--tx);text-decoration:none!important;flex-shrink:0}
.logo-ic{font-size:30px;filter:drop-shadow(0 2px 6px #2f6df640)}
.logo b{display:block;font-size:20px;line-height:1.1;background:linear-gradient(90deg,#2f6df6,#7c4dff);-webkit-background-clip:text;background-clip:text;color:transparent}
.logo small{display:block;font-size:11px;color:var(--mut);letter-spacing:.2px}
.search{margin-left:auto;display:flex;max-width:340px;width:100%}
.search input{flex:1;min-width:0;background:var(--bg2);border:1px solid var(--line);border-right:0;color:var(--tx);padding:9px 14px;border-radius:999px 0 0 999px;font-size:15px;outline:none}
.search input:focus{border-color:var(--ac)}
.search button{background:var(--ac);border:0;color:#fff;padding:0 16px;border-radius:0 999px 999px 0;cursor:pointer}
.nav{display:flex;gap:6px;overflow-x:auto;padding-bottom:10px;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{white-space:nowrap;color:var(--mut);padding:6px 14px;border-radius:999px;font-size:14px;font-weight:600;text-decoration:none!important;border:1px solid transparent}
.nav a:hover{color:var(--tx);background:var(--bg2)}
.nav a.on{color:#fff;background:linear-gradient(90deg,var(--ac),var(--ac2))}

/* hero + sections */
.hero{margin-top:14px;padding:24px 26px;border-radius:18px;background:linear-gradient(120deg,#dbe8ff,#ece4ff 60%,#fdeaff);border:1px solid var(--line)}
.hero h1{margin:0 0 6px;font-size:clamp(22px,4vw,34px);line-height:1.25}
.hero h1 span{color:var(--mut);font-weight:500;font-size:.6em;display:block}
.hero p{margin:0;color:#4a5683;max-width:760px}
.sec-t{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:20px;margin:28px 0 12px}
.sec-t a{font-size:14px;font-weight:500}
.sec-h1{font-size:26px}
.empty{color:var(--mut);padding:24px 0}

/* grid + card */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:14px}
.grid-feat{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.card{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;color:var(--tx);text-decoration:none!important;transition:transform .15s,border-color .15s,box-shadow .15s}
.card:hover{transform:translateY(-3px);border-color:var(--ac);box-shadow:0 10px 26px #2f6df629}
.card-img{display:block;aspect-ratio:4/3;background:var(--bg2)}
.card-img img{display:block;width:100%;height:100%;object-fit:cover}
.card-info{display:block;padding:10px 12px 12px}
.card-title{display:block;font-weight:700;font-size:15px;line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-meta{display:block;font-size:12px;color:var(--mut);margin-top:2px}

/* ads */
.ad{position:relative;margin:16px auto;text-align:center;max-width:100%;overflow:hidden}
.ad-label{display:block;font-size:10px;letter-spacing:1px;text-transform:uppercase;color:#8a95bb;margin-bottom:2px}
.ad-body{min-height:50px;display:flex;justify-content:center}
.ad-header_top .ad-body,.ad-footer_top .ad-body,.ad-game_above .ad-body,.ad-category_top .ad-body{min-height:90px}
.ad-game_below .ad-body,.ad-sidebar_top .ad-body,.ad-home_mid .ad-body{min-height:250px}
.ad-sidebar_sticky .ad-body{min-height:250px}
.ad-sidebar_sticky.sticky{position:sticky;top:120px}
.ad-ph{border:1px dashed #b7c4ea;border-radius:var(--r);background:repeating-linear-gradient(45deg,#f7f9ff,#f7f9ff 10px,#eef3ff 10px,#eef3ff 20px);color:#8a95bb;padding:14px;display:flex;flex-direction:column;gap:2px;font-size:12px}
.ad-ph b{color:var(--mut);font-size:13px}
.ad-header_top.ad-ph,.ad-footer_top.ad-ph,.ad-game_above.ad-ph,.ad-category_top.ad-ph{min-height:90px;justify-content:center}
.ad-game_below.ad-ph,.ad-home_mid.ad-ph,.ad-sidebar_top.ad-ph{min-height:250px;justify-content:center}
.ad-sidebar_sticky.ad-ph{min-height:600px;justify-content:center}
.ad-game_in_content.ad-ph{min-height:120px;justify-content:center}
.ad.dev-desktop{display:none}.ad.dev-mobile{display:block}
@media(min-width:900px){.ad.dev-desktop{display:block}.ad.dev-mobile{display:none}}
.ad-anchor{position:fixed;left:0;right:0;bottom:0;z-index:90;background:#ffffffee;border-top:1px solid var(--line);padding:4px 0 calc(4px + env(safe-area-inset-bottom));text-align:center}
.ad-anchor-body{display:flex;justify-content:center;min-height:50px}
.ad-anchor-x{position:absolute;right:6px;top:-26px;background:#fff;color:var(--tx);border:1px solid var(--line);border-bottom:0;border-radius:8px 8px 0 0;width:32px;height:26px;cursor:pointer}
@media(min-width:900px){.ad-anchor{display:none!important}}

/* game page */
.game-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:start}
@media(max-width:1000px){.game-layout{grid-template-columns:1fr}.game-side{display:block}}
.player-wrap{max-width:var(--pw);margin:14px auto}
.player{position:relative;width:100%;max-height:82vh;background:#000;border-radius:var(--r) var(--r) 0 0;overflow:hidden;border:1px solid var(--line);border-bottom:0}
.player iframe{position:absolute;inset:0;width:100%;height:100%;border:0;background:#fff}
.player-cover{position:absolute;inset:0;background-size:cover;background-position:center;display:grid;place-items:center}
.player-cover::before{content:"";position:absolute;inset:0;backdrop-filter:blur(14px) brightness(.55);-webkit-backdrop-filter:blur(14px) brightness(.55)}
.cover-in{position:relative;text-align:center;padding:16px;color:#fff}
.cover-thumb{width:min(220px,50%);border-radius:var(--r);box-shadow:0 10px 40px #000a}
.cover-in h1{margin:12px 0;font-size:clamp(20px,4vw,28px)}
.btn{display:inline-block;border:0;cursor:pointer;color:#fff;font-weight:700;padding:12px 28px;border-radius:999px;background:linear-gradient(90deg,var(--ac),var(--ac2));font-size:16px;text-decoration:none!important;box-shadow:0 6px 18px #2f6df64d}
.btn-play{font-size:20px;padding:14px 38px}
.btn:hover{filter:brightness(1.1)}
.player-bar{display:flex;align-items:center;justify-content:space-between;gap:8px;background:var(--card);border:1px solid var(--line);border-radius:0 0 var(--r) var(--r);padding:8px 12px}
.pb-title{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pb-btns{display:flex;gap:6px;flex-shrink:0}
.pb-btns button{background:var(--bg2);color:var(--tx);border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:13px;cursor:pointer}
.pb-btns button:hover:not(:disabled){border-color:var(--ac)}
.pb-btns button:disabled{opacity:.4;cursor:default}
.player:fullscreen{max-height:none;border-radius:0}
.box{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;margin:16px 0}
.prose h1{font-size:28px;margin-top:0}
.prose h2{font-size:20px;margin:18px 0 8px}
.prose p,.prose li{color:#3a4573}
.prose ul{padding-left:20px}
.side-t{margin:0 0 8px;font-size:16px}
.side-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.side-list a{display:flex;gap:10px;align-items:center;color:var(--tx);text-decoration:none!important}
.side-list img{width:64px;height:48px;object-fit:cover;border-radius:8px;flex-shrink:0}
.side-list b{display:block;font-size:14px;line-height:1.25}.side-list small{color:var(--mut)}
.notfound{text-align:center;padding:60px 0}.notfound h1{font-size:72px;margin:0;color:var(--ac)}

/* modal quảng cáo */
.modal{position:fixed;inset:0;z-index:200;background:#1b234799;display:grid;place-items:center;padding:16px}
.modal[hidden]{display:none}
.modal-box{background:var(--card);border:1px solid var(--line);border-radius:var(--r);width:min(440px,100%);padding:12px}
.modal-head{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:13px;color:var(--mut);margin-bottom:8px}
.modal-head button{background:var(--ac);color:#fff;border:0;border-radius:8px;padding:6px 12px;cursor:pointer;font-weight:700}
.modal-head button:disabled{background:#e3e9fa;color:#8a95bb;cursor:default}
.modal-ad{min-height:250px;display:flex;justify-content:center;align-items:center;overflow:hidden}

/* footer */
.ftr{border-top:1px solid var(--line);background:#e9efff;color:var(--mut);padding:20px 0 28px;font-size:14px;text-align:center}
.ftr-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 18px;margin-bottom:8px}
.ftr p{margin:0}
.cookie{position:fixed;left:12px;right:12px;bottom:12px;z-index:150;max-width:560px;margin:0 auto;background:#fff;color:var(--tx);border:1px solid var(--line);border-radius:12px;padding:12px 14px;display:flex;gap:12px;align-items:center;font-size:13px;box-shadow:0 8px 30px #2f6df633}
.cookie[hidden]{display:none}
.cookie p{margin:0;flex:1}
.cookie button{background:var(--ac);color:#fff;border:0;border-radius:8px;padding:8px 14px;cursor:pointer;font-weight:700}
@media(max-width:899px){body{padding-bottom:0}.cookie{bottom:70px}.logo small{display:none}.hdr-in{flex-wrap:wrap}.search{max-width:none;order:3}}
@media(max-width:560px){.grid{grid-template-columns:repeat(2,1fr);gap:10px}.grid-feat{grid-template-columns:repeat(2,1fr)}.pb-btns button{padding:6px 8px}}

.card{box-shadow:0 2px 8px #2f6df614}
.pb-btns button{color:var(--tx)}
.nav a:hover{background:#e6edff}
.warnbar{margin:12px 0 0;padding:10px 14px;border-radius:10px;background:#fff4d6;border:1px solid #f2d27a;color:#6b4e00;font-size:14px}