:root{
  --bg:#f2f2f7; --card:#fff; --card-2:#f7f7fa; --line:#e0e0e6; --line-soft:rgba(60,60,67,.12);
  --ink:#1c1c1e; --muted:rgba(60,60,67,.62);
  --primary:#5351c7; --primary-ink:#fff; --primary-soft:rgba(83,81,199,.12);
  --green:#1f9d44; --green-bg:rgba(44,181,78,.14);
  --red:#d33a30; --red-bg:rgba(220,62,52,.13);
  --orange:#c27406; --orange-bg:rgba(220,138,12,.15);
  --purple:#7d3ccf; --purple-bg:rgba(125,60,207,.12);
  --volcano:#d4502a; --volcano-bg:rgba(250,84,28,.13);
  --blue:#0c73dc; --blue-bg:rgba(12,115,220,.12);
  --shadow:0 1px 2px rgba(0,0,0,.04),0 8px 24px rgba(0,0,0,.05);
  --glow-1:rgba(88,86,214,.12); --glow-2:rgba(175,82,222,.10); --glow-3:rgba(90,200,250,.10);
  --mono:"SF Mono",ui-monospace,Menlo,Consolas,"Liberation Mono",monospace;
  color-scheme:light;
}
:root[data-theme=dark]{
  --bg:#000; --card:#1c1c1e; --card-2:#2c2c2e; --line:#3a3a3c; --line-soft:rgba(255,255,255,.07);
  --ink:#fff; --muted:rgba(235,235,245,.6);
  --primary:#5e5ce6; --primary-soft:rgba(94,92,230,.2);
  --green:#4cd471; --green-bg:rgba(48,209,88,.16);
  --red:#ff6961; --red-bg:rgba(255,69,58,.18);
  --orange:#ffb340; --orange-bg:rgba(255,159,10,.17);
  --purple:#c38bff; --purple-bg:rgba(191,90,242,.18);
  --volcano:#ff8a5c; --volcano-bg:rgba(250,84,28,.18);
  --blue:#5ea8ff; --blue-bg:rgba(10,132,255,.18);
  --shadow:none;
  --glow-1:rgba(94,92,230,.22); --glow-2:rgba(191,90,242,.14); --glow-3:rgba(100,210,255,.10);
  color-scheme:dark;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{
  color:var(--ink);background-color:var(--bg);
  background-image:radial-gradient(60rem 40rem at 0% 0%,var(--glow-1),transparent 60%),
    radial-gradient(50rem 36rem at 100% 10%,var(--glow-2),transparent 60%),
    radial-gradient(56rem 40rem at 60% 100%,var(--glow-3),transparent 60%);
  background-attachment:fixed;
  font:14px/1.55 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
*{scrollbar-width:thin;scrollbar-color:var(--line) transparent}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
button,input,textarea,select{font:inherit;color:inherit}
[hidden]{display:none!important}

/* Header */
header{position:sticky;top:0;z-index:10;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);
  background:color-mix(in srgb,var(--bg) 72%,transparent);border-bottom:1px solid var(--line-soft)}
.bar{max-width:1200px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;color:inherit;text-decoration:none}
.brand-mark{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;color:#fff;
  background:linear-gradient(135deg,#5e5ce6,#bf5af2)}
.icon-btn{width:36px;height:36px;border-radius:999px;border:0;background:transparent;cursor:pointer;display:grid;place-items:center;color:var(--muted)}
.icon-btn:hover{background:var(--card-2);color:var(--ink)}
.icon-btn svg{width:18px;height:18px}

main{max-width:1200px;margin:0 auto;padding:28px 20px 72px}

/* Hero + form */
.hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:28px;align-items:center;margin-bottom:24px}
@media (max-width:900px){.hero{grid-template-columns:1fr}}
.tag{display:inline-flex;align-items:center;gap:6px;border-radius:8px;padding:2px 9px;font-size:12.5px;font-weight:600;white-space:nowrap;line-height:1.6}
.t-primary{background:var(--primary-soft);color:var(--primary)}
.t-green{background:var(--green-bg);color:var(--green)}
.t-red{background:var(--red-bg);color:var(--red)}
.t-orange{background:var(--orange-bg);color:var(--orange)}
.t-purple{background:var(--purple-bg);color:var(--purple)}
.t-volcano{background:var(--volcano-bg);color:var(--volcano)}
.t-blue{background:var(--blue-bg);color:var(--blue)}
.t-gray{background:var(--card-2);color:var(--muted)}
.t-solid-red{background:var(--red);color:#fff}
h1{font-size:clamp(28px,4vw,42px);line-height:1.15;letter-spacing:-.02em;margin:14px 0 12px}
h1 span{background:linear-gradient(90deg,#5e5ce6,#bf5af2 60%,#64d2ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{color:var(--muted);font-size:15.5px;max-width:58ch;margin:0 0 18px}
.isps{display:flex;flex-wrap:wrap;gap:8px}
.isp-chip{display:inline-flex;align-items:center;gap:7px;padding:4px 10px 4px 4px;border-radius:999px;background:var(--card);border:1px solid var(--line-soft);font-weight:600;font-size:13px}

.logo{width:24px;height:24px;border-radius:7px;object-fit:cover;flex:none;background:#fff}
.logo.lg{width:28px;height:28px;border-radius:8px}
.logo.txt{display:grid;place-items:center;color:#fff;font-size:11px;font-weight:800;letter-spacing:-.02em}

.card{background:var(--card);border:1px solid var(--line-soft);border-radius:16px;box-shadow:var(--shadow)}
form.card{padding:20px;display:grid;gap:14px}
.fl{font-weight:600;font-size:13.5px;display:flex;justify-content:space-between;gap:8px}
.fl small{font-weight:400;color:var(--muted)}
textarea{width:100%;min-height:118px;resize:vertical;font-family:var(--mono);font-size:13.5px;line-height:1.6;
  background:var(--card-2);border:1px solid var(--line);border-radius:10px;padding:10px 12px}
textarea:focus,.input:focus,#tokbox input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.opts{display:flex;flex-wrap:wrap;gap:8px 18px;color:var(--muted);font-size:13.5px}
.opts label{display:inline-flex;align-items:center;gap:7px;cursor:pointer}
.opts input{accent-color:var(--primary);width:15px;height:15px;margin:0}
.actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.btn{border:0;border-radius:999px;height:42px;padding:0 22px;font-weight:600;font-size:15px;cursor:pointer;display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);color:var(--primary-ink);box-shadow:0 4px 14px var(--primary-soft)}
.btn:hover{filter:brightness(1.08)}
.btn:disabled{opacity:.6;cursor:default;filter:none}
.btn svg{width:16px;height:16px}
.spin{animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
#tokbox{display:inline-flex;align-items:center;gap:8px;font-size:13.5px}
#tokbox input{height:36px;padding:0 12px;border-radius:999px;border:1px solid var(--line);background:var(--card-2);width:180px}

/* Status line + toolbar */
.toolbar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin:8px 0 14px}
#status{color:var(--muted);min-height:1.5em}
#status.err{color:var(--red);font-weight:600}
.seg{display:inline-flex;background:var(--card-2);border:1px solid var(--line-soft);border-radius:999px;padding:3px}
.seg button{border:0;background:transparent;border-radius:999px;padding:5px 14px;font-weight:600;font-size:13px;color:var(--muted);cursor:pointer}
.seg button[aria-pressed=true]{background:var(--card);color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.12)}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin-bottom:16px}
@media (max-width:820px){.stats{grid-template-columns:repeat(2,minmax(0,1fr))}}
.stat{padding:14px 16px}
.stat b{display:block;font-size:26px;line-height:1.2;letter-spacing:-.02em}
.stat span{color:var(--muted);font-size:13px}
.stat.green b{color:var(--green)} .stat.red b{color:var(--red)} .stat.purple b{color:var(--purple)} .stat.orange b{color:var(--orange)}

/* Domain cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(360px,1fr));gap:16px}
@media (max-width:420px){.grid{grid-template-columns:1fr}}
.dc{overflow:hidden}
.dc-head{display:flex;align-items:center;gap:8px;padding:14px 18px;border-bottom:1px solid var(--line-soft);background:var(--card-2)}
.dots{display:flex;gap:6px;margin-right:4px}
.dots i{width:11px;height:11px;border-radius:50%;display:block}
.dots i:nth-child(1){background:#ff5f57}.dots i:nth-child(2){background:#febc2e}.dots i:nth-child(3){background:#28c840}
.dc-name{font-weight:700;color:var(--blue);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.dc-head .tag{margin-left:auto}
.dc-body{padding:2px 18px 6px}
.dc-err{padding:18px;color:var(--red)}
.dc-pending{padding:26px 18px;color:var(--muted);display:flex;align-items:center;gap:10px}
.isp-row{padding:12px 0}
.isp-row+.isp-row{border-top:1px solid var(--line-soft)}
.isp-top{display:flex;align-items:center;justify-content:space-between;gap:12px;cursor:pointer;list-style:none}
.isp-top::-webkit-details-marker{display:none}
.isp-name{display:flex;align-items:center;gap:10px;font-weight:600;min-width:0}
.isp-name small{color:var(--muted);font-weight:400}
.chev{width:14px;height:14px;color:var(--muted);transition:transform .15s;flex:none}
details[open] .chev{transform:rotate(90deg)}
.srvs{display:grid;gap:6px;margin:10px 0 2px 38px}
.srv{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px}
.srv .ip{font-family:var(--mono);color:var(--muted);font-size:12.5px;overflow:hidden;text-overflow:ellipsis}
.srv .val{display:flex;align-items:center;gap:6px;min-width:0}
.ms{color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}

/* Matrix table */
.wrap{overflow-x:auto}
table{border-collapse:separate;border-spacing:0;width:100%;min-width:560px}
th,td{padding:9px 14px;border-bottom:1px solid var(--line-soft);text-align:left;vertical-align:middle;white-space:nowrap}
thead th{font-size:13px;background:var(--card-2);position:sticky;top:0}
thead th:first-child{border-top-left-radius:16px} thead th:last-child{border-top-right-radius:16px}
tbody tr:last-child td{border-bottom:0}
th.sv,td.sv{position:sticky;left:0;background:var(--card);z-index:1;border-right:1px solid var(--line-soft)}
thead th.sv{background:var(--card-2);z-index:2}
td.sv .isp-name{gap:8px}
td.sv .ip{font-family:var(--mono);font-size:12px;color:var(--muted);font-weight:400}
tr.grp td{background:var(--card-2);font-weight:600;color:var(--muted);font-size:12.5px;text-transform:uppercase;letter-spacing:.04em}
.sum{display:block;font-weight:400;font-size:12px;color:var(--muted)}
.sum b{color:var(--red)}

/* Empty state + legend */
.empty{padding:40px 20px;text-align:center;color:var(--muted)}
.empty b{display:block;color:var(--ink);font-size:16px;margin-bottom:4px}
.legend{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:18px;color:var(--muted);font-size:13px}
.legend>span{display:inline-flex;align-items:center;gap:7px}
footer{max-width:1200px;margin:0 auto;padding:0 20px 32px;color:var(--muted);font-size:12.5px}

/* ---------- Shared: nav, buttons, forms ---------- */
.nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.nav-link{color:var(--muted);text-decoration:none;font-weight:600;font-size:13.5px;padding:6px 12px;border-radius:999px}
.nav-link:hover{color:var(--ink);background:var(--card-2)}
.nav-link[aria-current=page]{color:var(--ink);background:var(--card-2)}
.btn{text-decoration:none}
.btn.sm{height:34px;padding:0 14px;font-size:13.5px;box-shadow:none}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line);box-shadow:none}
.btn.ghost:hover{background:var(--card-2);filter:none}
.btn.danger{background:var(--red)}
.btn.link{background:transparent;color:var(--primary);box-shadow:none;padding:0 6px;height:auto}
.btn.xs{height:28px;padding:0 10px;font-size:12.5px;box-shadow:none}
.input{height:40px;padding:0 12px;border-radius:10px;border:1px solid var(--line);background:var(--card-2);width:100%}
select.input{cursor:pointer;padding-right:8px}
select.input.inline{height:30px;width:auto;font-size:13px;border-radius:8px;padding:0 6px}
.field{display:grid;gap:6px;font-size:13.5px}
.field>span{font-weight:600}
.field small{color:var(--muted);font-weight:400}
.row{display:flex;flex-wrap:wrap;gap:12px;align-items:end}
.row>.field{flex:1 1 180px}
.msg{font-size:13.5px;min-height:1.4em;color:var(--muted)}
.msg.err{color:var(--red);font-weight:600}
.msg.ok{color:var(--green);font-weight:600}
.muted{color:var(--muted)}
.mono{font-family:var(--mono)}
h2{font-size:20px;letter-spacing:-.01em;margin:0 0 4px}
h3{font-size:16px;margin:0 0 12px}
.section{padding:20px;display:grid;gap:14px}
.page-head{display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:12px;margin:4px 0 18px}
.page-head p{margin:0;color:var(--muted)}

/* Auth */
.auth{max-width:420px;margin:40px auto}
.auth .section{padding:26px}
.tabs{display:flex;background:var(--card-2);border-radius:999px;padding:3px;border:1px solid var(--line-soft)}
.tabs button{flex:1;border:0;background:transparent;border-radius:999px;padding:7px;font-weight:600;color:var(--muted);cursor:pointer}
.tabs button[aria-selected=true]{background:var(--card);color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.12)}

/* Plan banner */
.banner{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;padding:14px 18px;margin-bottom:16px}
.banner .meter{flex:1 1 160px;height:6px;border-radius:99px;background:var(--card-2);overflow:hidden;min-width:120px}
.banner .meter i{display:block;height:100%;background:linear-gradient(90deg,#5e5ce6,#bf5af2)}
.banner.warn{border-color:var(--orange)}

/* Data table */
.tbl{width:100%;min-width:760px}
.tbl td{vertical-align:middle}
.tbl tr.mrow{cursor:pointer}
.tbl tr.mrow:hover td{background:var(--card-2)}
.tbl tr.open td{background:var(--card-2)}
.tbl td.detail{padding:0;background:var(--card-2);white-space:normal}
.tbl .dom{font-weight:700}
.tbl .acts{display:flex;gap:6px;justify-content:flex-end}
.detail-in{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:16px;padding:16px}
@media (max-width:900px){.detail-in{grid-template-columns:1fr}}
.detail-in .card{box-shadow:none}
.hist{display:flex;gap:3px;align-items:flex-end;height:38px;margin:6px 0 10px}
.hist i{flex:1;max-width:10px;min-width:4px;border-radius:3px;height:100%;background:var(--green)}
.hist i.alert{background:var(--red)}
.hist i.error{background:var(--orange)}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:13.5px}
.kv dt{color:var(--muted)}
.kv dd{margin:0}

/* Plans */
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.plan{padding:18px;display:grid;gap:8px;align-content:start}
.plan.current{border:2px solid var(--primary)}
.plan b.price{font-size:24px;letter-spacing:-.02em}
.plan ul{margin:4px 0 0;padding-left:18px;color:var(--muted);font-size:13.5px}

/* Toast */
#toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:50;padding:10px 18px;border-radius:12px;
  background:var(--ink);color:var(--bg);font-weight:600;font-size:14px;box-shadow:0 8px 30px rgba(0,0,0,.25);max-width:90vw}
.auth .btn{justify-content:center}

/* "Kết nối của bạn" */
.net{padding:16px 20px;margin-bottom:16px;display:grid;gap:10px}
.net-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.net-head h3{margin:0}
.net-body{display:grid;gap:10px}
.net-body .dc-pending{padding:6px 0}
.net-row{display:grid;grid-template-columns:130px minmax(0,1fr);gap:12px;align-items:center}
@media (max-width:600px){.net-row{grid-template-columns:1fr;gap:4px}}
.net-label{color:var(--muted);font-size:13px}
.net-val{display:flex;align-items:center;gap:10px;flex-wrap:wrap;min-width:0}
.net-txt{display:grid;min-width:0}
.net-txt small{color:var(--muted);font-size:12.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.net-note{font-size:13.5px;line-height:1.6}