:root{--brand:#2563eb;--ok:#16a34a;--fail:#dc2626;--warn:#d97706;--mute:#6b7280;--bg:#f3f4f6;--card:#fff;--line:#e5e7eb;--text:#111827}
*{box-sizing:border-box}
body{margin:0;font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,"PingFang SC","Noto Sans SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--brand)}
header.top{background:var(--card);border-bottom:1px solid var(--line);padding:10px 16px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
header.top .logo{display:block;flex:none;width:202px;height:28px;background:url(/static/img/logo.svg) left center/contain no-repeat;text-indent:-9999px;overflow:hidden;white-space:nowrap;font-size:0}
header.top nav{display:flex;gap:14px;flex:1}
@media(max-width:560px){header.top{gap:8px;padding:10px 12px}header.top nav{gap:14px;overflow-x:auto;white-space:nowrap;min-width:0;font-size:14px;order:3;flex:1 1 100%;padding-bottom:4px;-webkit-overflow-scrolling:touch}header.top nav a{flex:0 0 auto}header.top .btn{white-space:nowrap}}
main{max-width:980px;margin:0 auto;padding:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px;margin-bottom:14px}
h1{font-size:22px;margin:4px 0 12px}h2{font-size:17px;margin:0 0 10px}
label{display:block;font-size:13px;color:var(--mute);margin:8px 0 3px}
input,select{width:100%;padding:9px 10px;border:1px solid #d1d5db;border-radius:7px;font:inherit;background:#fff}
button,.btn{display:inline-block;padding:8px 14px;border:0;border-radius:7px;background:var(--brand);color:#fff;font:inherit;cursor:pointer;text-decoration:none}
button.ghost{background:#fff;color:var(--text);border:1px solid #d1d5db}
button.danger{background:var(--fail)}
button:disabled{opacity:.55;cursor:not-allowed}
.row{display:flex;flex-wrap:wrap;gap:10px}.row>*{flex:1 1 180px}
.actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.msg{padding:9px 12px;border-radius:7px;margin:10px 0;font-size:14px}
.msg.err{background:#fee2e2;color:#991b1b}.msg.good{background:#dcfce7;color:#166534}.msg.info{background:#dbeafe;color:#1e40af}
.empty,.loading{color:var(--mute);text-align:center;padding:18px}
.badge{display:inline-block;padding:2px 9px;border-radius:99px;font-size:12px;font-weight:600;color:#fff;background:var(--mute)}
.badge.up{background:var(--ok)}.badge.down{background:var(--fail)}.badge.warn{background:var(--warn)}
.site{display:grid;grid-template-columns:1fr auto;gap:6px 12px;align-items:center}
.site .name{font-weight:600;font-size:16px;color:var(--text);text-decoration:none}
.meta{color:var(--mute);font-size:13px;overflow-wrap:anywhere}
.stats{display:flex;flex-wrap:wrap;gap:16px;margin-top:6px;font-size:13px}.stats b{display:block;font-size:16px}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{text-align:left;padding:6px 8px;border-bottom:1px solid var(--line)}
.scroll{overflow-x:auto}
code,pre{background:#f3f4f6;padding:2px 5px;border-radius:5px;word-break:break-all;white-space:pre-wrap}
svg.chart{width:100%;height:auto;min-height:200px;background:#fafafa;border:1px solid var(--line);border-radius:8px}
.hidden{display:none}
.center{max-width:420px;margin:30px auto}
.tabs{display:flex;gap:8px;margin-bottom:8px}
@media(max-width:560px){.site{grid-template-columns:1fr}main{padding:10px}}
input[type=checkbox]{width:auto}
.msg.warnbox{background:#fef3c7;color:#92400e;border:1px solid #fcd34d}
.row2{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.row2 label{display:inline-flex;gap:6px;align-items:center;margin:0}
.guide h3{margin:14px 0 6px;font-size:15px}.guide{line-height:1.6}
.checkform input[type=text]{max-width:340px}
.checkform fieldset{border:1px solid var(--line);border-radius:8px;margin:8px 0;padding:8px 12px;min-width:0}
/* G6-c3b: trang Gói của bạn */
.bar{height:10px;background:#e5e7eb;border-radius:99px;overflow:hidden;margin-top:4px}.bar i{display:block;height:100%;background:var(--ok)}
.bar.near i{background:var(--warn)}.bar.full i{background:var(--fail)}
.meter-note{font-size:12px;font-weight:600;margin-top:3px}.meter-note.near{color:#92400e}.meter-note.full{color:#991b1b}
.plan-limits th{width:38%;font-weight:600}.plan-limits td{word-break:break-word}
@media(max-width:560px){.plan-limits,.plan-limits tbody,.plan-limits tr,.plan-limits th,.plan-limits td{display:block;width:auto}
.plan-limits tr{padding:8px 0;border-bottom:1px solid var(--line)}.plan-limits th,.plan-limits td{border:0;padding:2px 0}}

.pay-table th,.pay-table td{text-align:left;padding:6px 8px;border-bottom:1px solid var(--line)}
#pay-list button{margin-top:10px}
@media(max-width:560px){.pay-table thead{display:none}.pay-table,.pay-table tbody,.pay-table tr,.pay-table td{display:block;width:auto}
.pay-table tr{padding:8px 0;border-bottom:1px solid var(--line)}.pay-table td{border:0;padding:2px 0;overflow-wrap:anywhere}
.pay-table td::before{content:attr(data-label) ": ";font-weight:600}}
/* Trang chủ giới thiệu */
.hero{text-align:center;padding:28px 8px 18px}.hero h1{font-size:30px;line-height:1.25;margin:0 0 10px}
.hero .lead{max-width:640px;margin:0 auto 14px;color:var(--mute);font-size:16px}.hero .actions{justify-content:center}
.btn.ghost-link{background:#fff;color:var(--text);border:1px solid #d1d5db}
.narrow{max-width:420px;margin:0 auto 14px}
.home-nav{display:flex;gap:14px;flex:1}
section{scroll-margin-top:12px}
footer{text-align:center;padding:14px 0}
@media(max-width:560px){.hero h1{font-size:24px}}
header.top .logo,header.top .btn{white-space:nowrap}
@media(max-width:560px){
  body.home header.top{flex-wrap:nowrap;gap:8px;padding:10px 12px}
  body.home header.top .home-nav{display:none}  /* các mục này đều có trong nội dung trang */
  body.home header.top .logo{width:150px;height:22px}
  body.home header.top .btn{margin-left:auto;padding:7px 10px;font-size:14px}
}
/* G7-a: trang chủ mới (chỉ body.home) */
body.home{background:#fff}
body.home header.top{position:sticky;top:0;z-index:5}
body.home header.top .home-nav{gap:20px;justify-content:center}
body.home header.top .home-nav a{color:var(--text);text-decoration:none;font-weight:500}
body.home header.top .home-nav a:hover{color:var(--brand)}
body.home main{max-width:1080px;padding:0 16px 24px}
body.home section{padding:28px 0;scroll-margin-top:64px}
body.home section>h2{font-size:24px;text-align:center;margin:0 0 20px}
body.home{overflow-x:clip}
body.home .hero{position:relative;isolation:isolate;max-width:none;padding:64px 16px 56px}
body.home .hero::before{content:"";position:absolute;z-index:-1;top:0;bottom:0;left:50%;width:100vw;transform:translateX(-50%);background:linear-gradient(180deg,#eff6ff 0%,#dbeafe 55%,#fff 100%)}
body.home .hero h1{font-size:42px;line-height:1.2;margin:0 auto 14px;max-width:760px;text-wrap:balance}
body.home .hero .lead{font-size:18px;color:#374151;max-width:680px;margin-bottom:24px}
body.home .btn.big{padding:12px 24px;font-size:16px;font-weight:600;border-radius:9px}
body.home .btn.ghost-link{border-color:var(--brand);color:var(--brand)}
body.home .fgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
body.home .fcard{position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 22px;box-shadow:0 2px 10px rgba(17,24,39,.06);scroll-margin-top:72px}
body.home .fcard:target{border-color:var(--brand);box-shadow:0 0 0 3px #bfdbfe}
body.home .ficon{width:52px;height:52px;border-radius:12px;background:#dbeafe;color:var(--brand);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
body.home .fcard.soon .ficon{background:#f3f4f6;color:var(--mute)}
body.home .fcard h3{margin:0 0 6px;font-size:20px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
body.home .soon-tag{font-size:12px;font-weight:600;background:#fef3c7;color:#92400e;border-radius:99px;padding:2px 10px}
body.home .fdesc{margin:0 0 12px;color:#374151}
body.home .fcard .fbtn{margin-top:auto;text-align:center;padding:11px 16px;font-weight:600}
body.home .fcard.soon .fbtn{background:#fff;color:var(--brand);border:1px solid var(--brand)}
body.home .fcard .fbtn{align-self:stretch;border:1px solid transparent}
body.home .fcard .fdesc+.flist{margin-bottom:20px}
body.home .flist,body.home .fcard .flist{list-style:none;margin:0;padding:0}
body.home .fcard .flist li{position:relative;padding:4px 0 4px 24px;font-size:14px;color:#374151}
body.home .fcard .flist li::before{content:"";position:absolute;left:4px;top:10px;width:6px;height:10px;border:solid var(--ok);border-width:0 2px 2px 0;transform:translateY(-3px) rotate(45deg)}
body.home .why{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
body.home .why>div{background:var(--bg);border-radius:12px;padding:18px}
body.home .why h3{margin:0 0 6px;font-size:16px}body.home .why p{margin:0;color:#4b5563;font-size:14px}
body.home .steps{list-style:none;counter-reset:s;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
body.home .steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 18px 18px 64px;position:relative}
body.home .steps li::before{content:counter(s);position:absolute;left:18px;top:16px;width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center}
body.home .steps b{display:block}body.home .steps span{color:#4b5563;font-size:14px}
body.home .narrow{box-shadow:0 2px 10px rgba(17,24,39,.06);padding:20px}
body.home footer{border-top:1px solid var(--line);margin-top:16px;padding:20px 0}
body.home .foot-links{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 18px;margin-bottom:8px}
@media(max-width:760px){body.home header.top{flex-wrap:nowrap}body.home header.top .home-nav{display:none}body.home header.top .btn{margin-left:auto}}
@media(max-width:900px){
  body.home .fgrid,body.home .steps{grid-template-columns:1fr}
  body.home .why{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
  body.home .hero{padding:40px 16px 36px}
  body.home .hero h1{font-size:28px}
  body.home .hero .lead{font-size:16px}
  body.home .why{grid-template-columns:1fr}
  body.home section>h2{font-size:21px}
  body.home main{padding:0 12px 20px}
}
/* G7-b: trang Thứ hạng từ khoá */
.rank-form{display:grid;grid-template-columns:2fr 90px 160px auto;gap:10px;align-items:end}
.rank-form label{margin-top:0}
.rank-table td{vertical-align:middle}
.rank-kw{overflow-wrap:anywhere}
.rank-pos{font-weight:700;font-size:16px}
.rank-up{color:var(--ok);font-weight:600}.rank-down{color:var(--fail);font-weight:600}.rank-flat{color:var(--mute)}
.rank-spark{width:120px;height:32px;display:block;background:#fafafa;border-radius:4px}
@media(max-width:560px){
  .rank-form{grid-template-columns:1fr 1fr}.rank-f-kw,.rank-f-b{grid-column:1/-1}
  .rank-f-b button{width:100%}
  .rank-table thead{display:none}.rank-table,.rank-table tbody,.rank-table tr,.rank-table td{display:block;width:auto}
  .rank-table tr{padding:10px 0;border-bottom:1px solid var(--line)}
  .rank-table td{border:0;padding:3px 0;overflow-wrap:anywhere}
  .rank-table td[data-label]::before{content:attr(data-label) ": ";font-weight:600;color:var(--mute)}
  .rank-table td.rank-kw::before{content:none}
}
/* Trang chi tiết dịch vụ + demo (body.svc) */
body.svc .crumb{margin:0 0 10px;font-size:14px;color:var(--mute)}
body.svc .soon-tag{font-size:12px;font-weight:600;background:#fef3c7;color:#92400e;border-radius:99px;padding:2px 10px;vertical-align:middle}
body.svc .demo{max-width:720px;margin:0 auto;padding:20px}
body.svc .dh{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:14px;font-size:17px}
body.svc .kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:14px}
body.svc .kpis>div{background:var(--bg);border-radius:10px;padding:12px}
body.svc .kpis span{display:block;font-size:12px;color:var(--mute)}body.svc .kpis b{font-size:18px}
.cap{font-size:13px;color:var(--mute);margin:10px 0 6px}
.bars{width:100%;height:34px;display:block}
.d-ok{fill:var(--ok)}.d-warn{fill:var(--warn)}.d-bad{fill:var(--fail)}.d-none{fill:var(--line)}
body.svc .evt{list-style:none;margin:14px 0 0;padding:0;font-size:14px}body.svc .evt li{padding:6px 0;border-top:1px solid var(--line)}
body.svc .tbl{width:100%;border-collapse:collapse;font-size:14px}
body.svc .tbl th,body.svc .tbl td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line)}
body.svc .tbl .num{text-align:right}body.svc .tbl td.up{color:var(--ok)}body.svc .tbl td.down{color:var(--fail)}
body.svc .line{width:100%;height:80px;color:var(--brand);display:block}
body.svc .cta{text-align:center;background:#eff6ff;border-radius:14px;padding:28px 16px}
body.svc .cta h2{margin:0 0 14px}
body.svc .demo-note{max-width:720px;margin:14px auto 0;text-align:center;background:#eff6ff;border-radius:14px;padding:16px}
body.svc .demo-note p{margin:0 0 12px}
body.svc .demo-note .actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;align-items:center}
body.home .fcard .fbtns{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
body.home .fcard .fbtns .fbtn{flex:1 1 130px;margin-top:0}
body.home .fcard .fbtn.ghost-link{background:#fff;color:var(--brand);border:1px solid var(--brand)}
@media(max-width:560px){body.svc .kpis{grid-template-columns:1fr}}
body.svc .tbl .badge{white-space:nowrap}
.tabs{display:flex;gap:6px;overflow-x:auto;margin-bottom:12px}
.tabs .tab{padding:7px 14px;border:1px solid var(--line);border-radius:99px;background:var(--card);color:var(--text);font:inherit;text-decoration:none;white-space:nowrap;cursor:pointer}
.tabs .tab.active{background:var(--brand);border-color:var(--brand);color:#fff}
.tools-res{width:100%;border-collapse:collapse}.tools-res>thead>tr>th,.tools-res>tbody>tr>td{text-align:left;padding:6px 8px;border-bottom:1px solid var(--line);vertical-align:top;word-break:break-word}
.tools-res{min-width:420px}.tools-res .badge{white-space:nowrap}.tools-res>thead>tr>th:first-child,.tools-res>tbody>tr:not(.hop-row)>td:first-child{min-width:96px;word-break:normal}.tools-res>thead>tr>th:nth-child(2),.tools-res>tbody>tr:not(.hop-row)>td:nth-child(2){white-space:nowrap}.tools-res>tbody>tr:not(.hop-row)>td:last-child{overflow-wrap:anywhere;min-width:160px}
@media(max-width:380px){header.top .logo{width:126px;height:18px}body.home header.top .logo{width:126px;height:18px}body.home header.top .btn{padding:7px 8px;font-size:13px}}
.hop-tbl{border-collapse:collapse;min-width:280px;font-size:.9em}.hop-tbl th,.hop-tbl td{text-align:left;padding:4px 8px;border-bottom:1px solid var(--line);white-space:nowrap;word-break:normal}
.tools-res>tbody>tr.hop-row>td{padding:0 0 8px;min-width:0}.hop-row .hop-scroll{width:0;min-width:100%;overflow-x:auto}

.pick-head{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:8px 0}.pick-list{border:1px solid var(--line);border-radius:8px;padding:8px;margin-bottom:8px;max-height:260px;overflow-y:auto}
.pick-bar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:6px}.pick-grp{margin-bottom:6px}.pick-gh{display:block;margin-bottom:2px}.pick-node{display:block;padding-left:22px;font-weight:400}
.tools-res .asn{font-size:11px;word-break:normal}
@media(max-width:560px){.tools-res{min-width:0}.tools-res>thead>tr>th:first-child,.tools-res>tbody>tr:not(.hop-row)>td:first-child{min-width:0}.tools-res>tbody>tr:not(.hop-row)>td:last-child{min-width:0}.tools-res>thead>tr>th,.tools-res>tbody>tr>td{padding:6px 4px;font-size:13px}}
.hb-dur{display:flex;gap:6px}.hb-dur input{flex:1 1 70px;min-width:0}.hb-dur select{flex:0 0 90px;width:90px}
.hb-code{display:block;background:#f3f4f6;border-radius:6px;padding:8px 10px;margin:6px 0;font-size:13px;overflow-wrap:anywhere;white-space:pre-wrap;word-break:break-all}
.hb-secret{border-color:var(--warn)}.hb-item .meta{margin-top:3px}.hb-form label{display:block;font-size:13px;color:var(--mute)}

/* G11-a: công cụ mạng miễn phí ở trang chủ + khối đăng ký + cổng đăng nhập ở /tools */
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
body.home .lead2{color:#4b5563;margin:0 0 14px}
body.home .quick{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
body.home .quick select{flex:0 0 110px;width:auto}
body.home .quick input{flex:1 1 220px;width:auto;min-width:0}
body.home .quick button{flex:0 0 auto}
body.home .tgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;margin-bottom:10px}
body.home .tcard{display:flex;flex-direction:column;gap:4px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;text-decoration:none;color:var(--text)}
body.home .tgrid .ad-slot{grid-column:1/-1}
body.home .tcard:hover{border-color:var(--brand)}
body.home .tcard b{color:var(--brand);font-size:17px}body.home .tcard span{font-size:13px;color:#4b5563}
body.home .upsell .flist{list-style:none;margin:0 0 14px;padding:0}
body.home .upsell .flist li{padding:4px 0 4px 24px;position:relative;font-size:14px}
body.home .upsell .flist li::before{content:"";position:absolute;left:4px;top:9px;width:6px;height:10px;border:solid var(--ok);border-width:0 2px 2px 0;transform:translateY(-3px) rotate(45deg)}
body.home .upsell .actions{display:flex;flex-wrap:wrap;gap:10px}
body.home .upsell .btn.ghost-link{background:#fff;color:var(--brand);border:1px solid var(--brand)}
@media(max-width:760px){body.home .tgrid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:420px){body.home .tgrid{grid-template-columns:1fr}body.home .quick select{flex:1 1 100%}}
.cta-row.hidden{display:none}
.cta-row{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0}
.cta-row a.btn{text-decoration:none}
.guest-note{margin:0 0 12px;word-break:normal;overflow-wrap:normal}#hint,#extNote{word-break:normal;overflow-wrap:anywhere}
@media(max-width:560px){header.top.guest-top{flex-wrap:nowrap;gap:6px;padding-left:10px;padding-right:10px}header.top.guest-top .logo{min-width:0;flex:0 1 auto}header.top.guest-top nav{display:none}header.top.guest-top .btn{padding:6px 8px;font-size:13px;white-space:nowrap}header.top.guest-top .logo+.btn{margin-left:auto}}
.lang-menu{position:relative;flex:none;font-size:13px;line-height:1}
.lang-menu summary{list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--text);font-weight:600;user-select:none}
.lang-menu summary::-webkit-details-marker{display:none}
.lang-menu summary::after{content:"";width:6px;height:6px;border:solid currentColor;border-width:0 2px 2px 0;transform:translateY(-2px) rotate(45deg)}
.lang-menu[open] summary::after{transform:translateY(1px) rotate(-135deg)}
.lang-menu summary:focus-visible,.lang-list a:focus-visible,body.auth input:focus-visible,body.auth button:focus-visible,body.auth a:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.lang-list{position:absolute;right:0;top:calc(100% + 4px);z-index:30;min-width:150px;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 6px 18px rgba(17,24,39,.12);padding:4px;display:flex;flex-direction:column}
.lang-list a{padding:9px 10px;border-radius:6px;color:var(--text);text-decoration:none;font-size:14px;white-space:nowrap}
.lang-list a:hover{background:var(--bg)}
.lang-list a.on{background:#dbeafe;color:var(--brand);font-weight:600}
@media(max-width:760px){body.home header.top .lang-menu{margin-left:auto}body.home header.top .lang-menu+.btn{margin-left:0}}
@media(max-width:560px){header.top.guest-top .lang-menu{margin-left:auto}header.top.guest-top .lang-menu+.btn{margin-left:0}}
@media(max-width:430px){body.home header.top{gap:6px;padding-left:10px;padding-right:10px}body.home header.top .logo{width:118px;height:17px}body.home header.top .btn{padding:6px 8px;font-size:13px}}
.tool-about{margin-top:16px}.tool-about ul{margin:8px 0 12px;padding-left:20px}.tool-about li{margin-bottom:6px}
.tool-links a{display:inline-block;margin:0 12px 4px 0}
/* G12-d: banner khách ở /app/* */
.guest-banner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 12px;padding:10px 16px;background:#fef3c7;color:#92400e;border-bottom:1px solid #fcd34d;font-size:14px;position:sticky;top:0;z-index:20}
.guest-banner .gb-actions,.guest-auth{display:inline-flex;gap:8px;flex-wrap:nowrap}
.guest-banner .btn,.guest-auth .btn{padding:6px 12px;font-size:13px;white-space:nowrap}
@media(max-width:560px){.guest-banner{padding:8px 10px;font-size:13px}.guest-banner .gb-text{flex:1 1 100%}}
/* G13-b: trang đăng nhập / đăng ký */
body.auth .auth-box{padding:22px 20px;box-shadow:0 2px 10px rgba(17,24,39,.06)}
body.auth .auth-box h1{margin:0 0 6px;font-size:22px}
body.auth .auth-box .actions button{width:100%}
body.auth .auth-switch{margin:12px 0 0;font-size:14px}
body.auth header.top{display:flex;align-items:center;gap:12px;justify-content:space-between}
body.home .cta-start .narrow{text-align:center}
@media(max-width:430px){body.auth .center{margin:14px auto}body.auth .auth-box{padding:18px 14px}}
/* G14-a: trang đăng nhập gọn + header /app */
body.auth header.top{padding:12px 20px;background:#fff}
body.auth .auth-box{max-width:400px;margin:36px auto;padding:28px 26px;border-radius:14px;box-shadow:0 4px 20px rgba(17,24,39,.08)}
body.auth .auth-box label{margin:14px 0 5px;color:var(--text);font-weight:500}
body.auth .auth-box input{height:44px;padding:0 12px;box-sizing:border-box}
body.auth .auth-box .actions{margin-top:20px}
body.auth .auth-box .actions button{height:44px;font-weight:600}
body.auth .auth-switch{text-align:center}
@media(max-width:430px){body.auth header.top{padding:10px 12px}body.auth .auth-box{margin:16px 12px;padding:20px 16px}}
header.top .lang-menu+#logout-btn{padding:7px 12px;font-size:13px}
@media(max-width:560px){header.top .lang-menu{margin-left:auto}header.top .logo{width:150px;height:22px}}

.ip-map { margin-top: 12px; }
.ip-map-frame { position: relative; width: 100%; max-width: 512px; margin: 0 auto; height: 280px; overflow: hidden; border-radius: 8px; background: #e5e3df; }
.ip-map-grid { position: absolute; left: 50%; top: 50%; width: 768px; height: 768px; display: grid; grid-template-columns: repeat(3, 256px); grid-template-rows: repeat(3, 256px); }
.ip-map-grid img, .ip-map-grid .tile-blank { display: block; width: 256px; height: 256px; max-width: none; }
.ip-map-pin { position: absolute; left: 50%; top: 50%; box-sizing: border-box; width: 18px; height: 18px; margin: -22px 0 0 -9px; background: #d33; border: 2px solid #fff; border-radius: 50% 50% 50% 0; transform: rotate(-45deg); box-shadow: 0 1px 4px rgba(0,0,0,.5); }
.ip-map-attr { font-size: 12px; margin-top: 4px; }
.ip-map-attr a { margin-top: 0; }
.ip-map a { display: inline-block; margin-top: 6px; }

/* Khu vực đã đăng nhập (/app/*): menu trái kiểu trang quản trị; điện thoại: ngăn kéo mở bằng nút ☰ */
body.has-side{display:grid;grid-template-columns:220px minmax(0,1fr);grid-template-rows:auto;align-items:start;align-content:start;min-height:100vh}
body.has-side>header.top,body.has-side>.msg,body.has-side>.guest-banner{grid-column:1/-1}
body.has-side>header.top{position:sticky;top:0;z-index:20}
body.has-side .top-sp{flex:1}
body.has-side .side-toggle{display:none;padding:7px 9px;background:transparent;color:var(--text);border:1px solid var(--line)}
body.has-side .app-side{position:sticky;top:53px;align-self:start;height:calc(100vh - 53px);overflow-y:auto;background:var(--card);border-right:1px solid var(--line);padding:12px 8px}
body.has-side .app-side nav{display:flex;flex-direction:column;gap:2px}
body.has-side .app-side a{display:flex;align-items:center;gap:10px;padding:9px 12px;min-height:36px;border-radius:8px;color:var(--text);text-decoration:none;font-weight:500}
body.has-side .app-side a:hover{background:#f3f4f6}
body.has-side .app-side a.active{background:#dbeafe;color:var(--brand)}
body.has-side .app-side a:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}
body.has-side main{grid-column:2;width:100%;box-sizing:border-box;max-width:1040px;margin:0}
body.has-side .side-backdrop{display:none}
@media(max-width:760px){
  body.has-side{grid-template-columns:minmax(0,1fr)}
  body.has-side main{grid-column:1}
  body.has-side .side-toggle{display:inline-flex;align-items:center}
  body.has-side .app-side{position:fixed;top:53px;left:0;bottom:0;height:auto;width:250px;z-index:25;transform:translateX(-100%);transition:transform .2s;padding-top:16px}
  body.has-side.side-open .app-side{transform:none;box-shadow:0 0 24px rgba(0,0,0,.25)}
  body.has-side.side-open .side-backdrop{display:block;position:fixed;inset:53px 0 0 0;background:rgba(0,0,0,.35);z-index:22}
  body.has-side a{min-height:40px}
}

/* Mobile (<=640px): ô nhập 16px (chống iOS zoom), vùng chạm >=40px, chữ >=13-14px, bảng cuộn có gợi ý. Không đổi desktop. */
@media(max-width:640px){
  input,select,textarea{font-size:16px}
  label,.meta,.cap,.stats,.hb-form label,code,.hb-code,.guest-banner,.lang-menu,footer.meta,#hint,#guestNote,#extNote,#pickSum{font-size:14px}
  table,th,td{font-size:14px}
  .badge,.soon-tag,.meter-note,body.svc .kpis span{font-size:13px}
  .badge{white-space:nowrap}
  code,pre,.hb-code{overflow-wrap:anywhere}
  /* bảng cuộn ngang: bóng mờ ở mép còn nội dung để cuộn */
  .scroll{-webkit-overflow-scrolling:touch;background:
    linear-gradient(to right,#fff 30%,rgba(255,255,255,0)) left center/24px 100% no-repeat local,
    linear-gradient(to left,#fff 30%,rgba(255,255,255,0)) right center/24px 100% no-repeat local,
    radial-gradient(farthest-side at 0 50%,rgba(17,24,39,.28),rgba(17,24,39,0)) left center/10px 100% no-repeat scroll,
    radial-gradient(farthest-side at 100% 50%,rgba(17,24,39,.28),rgba(17,24,39,0)) right center/10px 100% no-repeat scroll}
  .scroll table{min-width:520px}
  .scroll th,.scroll td{white-space:nowrap}
  .scroll td:last-child{white-space:normal;min-width:120px}
  /* vùng chạm */
  button,.btn{min-height:40px}
  header.top .btn,body.home header.top .btn,.guest-banner .btn,.guest-auth .btn,header.top .lang-menu+#logout-btn,body.has-side .side-toggle{min-height:40px;padding-top:9px;padding-bottom:9px}
  body.has-side .side-toggle{min-width:44px;justify-content:center}
  header.top .logo{position:relative}
  header.top .logo::after{content:"";position:absolute;inset:-9px -6px}
  .lang-menu summary{min-height:40px;padding:0 12px}
  .lang-list a{display:flex;align-items:center;min-height:40px}
  footer a,.foot-links a,.home-nav a{display:inline-block;padding:10px 8px}
  footer nav,.foot-links{display:flex;flex-wrap:wrap;justify-content:center;gap:0 4px}
  a.ghost-link:not(.btn),.back-link,main>a,body.auth a:not(.btn){display:inline-block;padding:10px 4px}
  #myIpBtn{min-height:40px}
  /* P3 */
  .actions{gap:10px}
  .actions button.danger{margin-top:8px}
  .hb-form .row>*{min-width:0}
}

/* G22: trang CMS công khai (News / Articles / FAQ / API / Terminal / Contacts) + biểu tượng xã hội ở chân trang */
.cms{max-width:820px;margin:0 auto;padding:0 16px 24px}
.cms .hero{padding:24px 0 8px}
.cms-body,.cms-article h1,.cms-card h2{overflow-wrap:anywhere}
.cms-body img,.cms-cover,.cms-card img{max-width:100%;height:auto;border-radius:8px}
.cms-body h2{font-size:1.25rem;margin:1.4em 0 .5em}.cms-body h3{font-size:1.1rem;margin:1.2em 0 .4em}
.cms-body p,.cms-body li{line-height:1.65}.cms-body ul,.cms-body ol{padding-left:1.4em}
.cms-card{margin:12px 0}.cms-card h2{font-size:1.15rem;margin:8px 0 4px}
.cms-q{border:1px solid var(--line,#e5e7eb);border-radius:8px;margin:8px 0;padding:0 14px}
.cms-q summary{cursor:pointer;padding:12px 0;font-weight:600;min-height:44px;box-sizing:border-box;overflow-wrap:anywhere}
.cms-pager{display:flex;gap:16px;align-items:center;justify-content:center;margin:20px 0}
.cms-pager a{padding:10px 8px;display:inline-block}
.cms-contact{margin-top:16px;font-size:1.05rem}
.foot-links .soc{display:inline-flex;align-items:center;justify-content:center;min-width:40px;min-height:40px}

/* G23: hồ sơ thành viên — avatar + link hồ sơ trên menu */
.avatar{display:inline-flex;align-items:center;justify-content:center;flex:none;width:32px;height:32px;border-radius:50%;background:var(--brand);color:#fff;font-weight:600;font-size:14px;object-fit:cover;overflow:hidden}
.avatar-lg{width:96px;height:96px;font-size:38px}
a.profile-link,a.side-profile{display:flex;align-items:center;gap:8px;min-width:0;color:var(--text);text-decoration:none;border-radius:8px}
a.profile-link{padding:3px 6px}
a.profile-link:hover,a.side-profile:hover{background:#f3f4f6}
a.profile-link.active,a.side-profile.active{background:#dbeafe}
.pl-text{display:flex;flex-direction:column;min-width:0;line-height:1.25}
.pl-name{font-size:14px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:170px}
.pl-sub{font-size:12px;color:var(--mute);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:170px}
body.has-side .app-side{display:flex;flex-direction:column}
body.has-side .app-side nav{flex:1}
body.has-side .app-side a.side-profile{display:none;margin-top:10px;border-top:1px solid var(--line);border-radius:0;padding:12px;min-height:48px}
.prof-avatar-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:8px}
.prof-avatar-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center;min-width:0;flex:1 1 200px}
.prof-avatar-actions .hint{flex:1 1 100%}
.hint{font-size:12px;color:var(--mute)}
input[readonly]{background:#f3f4f6;color:var(--mute)}
#prof-avatar{display:inline-flex}
@media(max-width:760px){
  a.profile-link .pl-text{display:none}
  a.profile-link{padding:2px}
  body.has-side .app-side a.side-profile{display:flex}
  body.has-side .app-side a.side-profile .pl-name,body.has-side .app-side a.side-profile .pl-sub{max-width:170px}
}

.icon-actions .ibtn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;border-radius:8px}
.icon-actions .ibtn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.icon-actions button.danger{margin-top:0}
/* G26: ô quảng cáo (chỉ tồn tại khi admin bật mã; trống/tắt = không in thẻ nào) */
.ad-slot{margin:12px 0;max-width:100%;overflow:hidden;text-align:center}
.ad-slot iframe,.ad-slot img,.ad-slot ins{max-width:100%}
.captcha{margin:10px 0;max-width:100%;overflow-x:auto;min-height:78px}.captcha.hidden{display:none}
.auth-forgot{margin:8px 0 0;font-size:14px;text-align:right}
/* G31: nhóm site */
.gbar{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 12px}.gbar:empty{display:none}
.chip{padding:6px 12px;border-radius:999px;border:1px solid #d1d5db;background:#fff;color:var(--text);font-size:14px;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chip.on{background:var(--brand);border-color:var(--brand);color:#fff}
#gf{align-items:center;flex-wrap:nowrap}#gf input{flex:1 1 auto;min-width:0;width:auto}#gf button{flex:0 0 auto}
.gm-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:10px 0;border-top:1px solid #e5e7eb}
.gm-row .gm-name{flex:1 1 140px;min-width:0;overflow-wrap:anywhere}
.gm-row input{flex:1 1 140px;min-width:0;width:auto}
.gm-row .gm-link{flex:1 1 100%;min-width:0;overflow-wrap:anywhere}
.gm-row button{padding:6px 10px;font-size:14px}
.site-group{margin-top:8px;max-width:100%}.site-group select{width:auto;max-width:100%;padding:5px 8px;font-size:14px}
.rank-dom-form{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:end}
.rank-dom-form label{margin-top:0}
@media(max-width:560px){.rank-dom-form{grid-template-columns:1fr}.rank-dom-form button{width:100%}}