:root{
  --bg:#f4f5f7; --surface:#fff; --surface2:#fafbfc; --border:#e6e8eb; --border2:#d6d9dd;
  --text:#16181d; --muted:#6b7280; --faint:#9aa1ab;
  --accent:#2557d6; --accent-press:#1e47b3; --accent-soft:#eef3fe; --on-accent:#fff;
  --ok:#1a7f44; --ok-bg:#e9f6ee; --warn:#9a6700; --warn-bg:#fdf4e3; --danger:#c1392b; --danger-bg:#fdecea; --off:#9aa1ab;
  --shadow:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.04);
  --shadow-lg:0 18px 50px rgba(16,24,40,.20);
  --scrim:rgba(16,20,28,.45);
  --r:12px; --r-sm:8px; --fs:14px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,system-ui,sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
}
html[data-theme="dark"]{
  --bg:#0e1116; --surface:#161b22; --surface2:#11161d; --border:#272d36; --border2:#343b46;
  --text:#e7ebf0; --muted:#9aa4b2; --faint:#6b7480; --accent:#4d82ff; --accent-press:#6a97ff; --accent-soft:#16233f; --on-accent:#0e1116;
  --ok:#46c771; --ok-bg:#11271a; --warn:#e0a83a; --warn-bg:#2a2110; --danger:#f0857a; --danger-bg:#2c1614; --off:#6b7480;
  --shadow:none; --shadow-lg:0 18px 50px rgba(0,0,0,.5); --scrim:rgba(0,0,0,.6);
}
/* OS fallback only before JS sets data-theme (it always does, this is belt-and-braces) */
@media (prefers-color-scheme:dark){
  html:not([data-theme]){
    --bg:#0e1116; --surface:#161b22; --surface2:#11161d; --border:#272d36; --border2:#343b46;
    --text:#e7ebf0; --muted:#9aa4b2; --faint:#6b7480; --accent:#4d82ff; --accent-press:#6a97ff; --accent-soft:#16233f; --on-accent:#0e1116;
    --ok:#46c771; --ok-bg:#11271a; --warn:#e0a83a; --warn-bg:#2a2110; --danger:#f0857a; --danger-bg:#2c1614; --off:#6b7480;
    --shadow:none; --shadow-lg:0 18px 50px rgba(0,0,0,.5); --scrim:rgba(0,0,0,.6);
  }
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{background:var(--bg);color:var(--text);font:var(--fs)/1.5 var(--font);-webkit-font-smoothing:antialiased}
body,.card,.drawer,.svr,.pick,.btn,.input{transition:background-color .22s ease,border-color .22s ease,color .22s ease}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
a{color:var(--accent);text-decoration:none}
.mono{font-family:var(--mono);font-size:.92em}
.muted{color:var(--muted)}.faint{color:var(--faint)}.tnum{font-variant-numeric:tabular-nums}
.right{text-align:right}.center{text-align:center}.nowrap{white-space:nowrap}
.row{display:flex;align-items:center;gap:10px}.wrap{flex-wrap:wrap}.spacer{flex:1}.hide{display:none!important}
svg.ic{width:16px;height:16px;stroke:currentColor;stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}

/* chrome */
.topbar{position:sticky;top:0;z-index:30;height:56px;display:flex;align-items:center;gap:8px;padding:0 16px;background:var(--surface);border-bottom:1px solid var(--border)}
.brand{display:flex;align-items:center;gap:9px;font-weight:680;font-size:15px;letter-spacing:-.01em}
.brand .mark{width:22px;height:22px;border-radius:6px;background:var(--accent);position:relative;flex:0 0 auto}
.brand .mark::before,.brand .mark::after{content:"";position:absolute;left:4px;right:4px;height:4px;border-radius:1.5px;background:#fff}
.brand .mark::before{top:5px}.brand .mark::after{bottom:5px}
.topnav{display:flex;gap:2px;margin-left:8px}
.topnav a{padding:8px 12px;border-radius:var(--r-sm);color:var(--muted);font-weight:600;font-size:13.5px;cursor:pointer}
.topnav a:hover{color:var(--text);background:var(--surface2)}
.topnav a.active{color:var(--accent);background:var(--accent-soft)}
.pill{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 12px;border-radius:99px;border:1px solid var(--border2);background:var(--surface);font-weight:650;cursor:pointer}
.pill:hover{border-color:var(--accent)}
.pill .cur{color:var(--muted);font-weight:500;font-size:12px}
.pill.warn{border-color:var(--warn);color:var(--warn)}
.pill.warn .dot{background:var(--warn)}
.topup{height:34px;padding:0 14px;border-radius:99px;border:none;background:var(--accent);color:var(--on-accent);font:inherit;font-weight:650;font-size:13.5px;cursor:pointer;display:inline-flex;align-items:center;gap:6px}
.topup:hover{background:var(--accent-press)}
.iconbtn{appearance:none;height:34px;min-width:34px;padding:0 9px;border:1px solid var(--border2);background:var(--surface);color:var(--text);border-radius:var(--r-sm);font:inherit;font-size:13px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px}
.iconbtn:hover{border-color:var(--accent)}
select.iconbtn{padding-right:6px}

/* bottom tab bar (mobile) */
.tabbar{display:none}
@media(max-width:760px){
  .topnav{display:none}
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:30;height:calc(56px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--surface);border-top:1px solid var(--border)}
  .tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:var(--muted);font-size:11px;font-weight:600;cursor:pointer}
  .tabbar a .ic{width:20px;height:20px}
  .tabbar a.active{color:var(--accent)}
  body.authed{padding-bottom:calc(56px + env(safe-area-inset-bottom))}
}

.container{max-width:1040px;margin:0 auto;padding:20px 16px 60px}
.head{display:flex;align-items:flex-start;gap:12px;margin-bottom:16px}
.head .spacer{flex:1}
h1{font-size:19px;font-weight:680;letter-spacing:-.01em}
h2{font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin:0 0 10px}
.sub{color:var(--muted);font-size:13px;margin-top:2px}
.grid{display:grid;gap:12px}.cols-2{grid-template-columns:1fr 1fr}
@media(max-width:680px){.cols-2{grid-template-columns:1fr}}

.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);box-shadow:var(--shadow)}
.card.pad{padding:16px 18px}
.card-h{padding:13px 18px;border-bottom:1px solid var(--border);font-weight:650}
.card-b{padding:16px 18px}

/* buttons */
.btn{appearance:none;font:inherit;font-weight:600;font-size:13.5px;border-radius:var(--r-sm);padding:9px 15px;border:1px solid var(--border2);background:var(--surface);color:var(--text);cursor:pointer;white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;gap:7px}
.btn:hover{border-color:var(--accent)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.btn.primary:hover{background:var(--accent-press);border-color:var(--accent-press)}
.btn.danger{color:var(--danger);border-color:var(--danger)}
.btn.danger:hover{background:var(--danger-bg)}
.btn.ghost{border-color:transparent;background:transparent;color:var(--muted)}
.btn.ghost:hover{background:var(--surface2);color:var(--text)}
.btn.sm{padding:6px 11px;font-size:12.5px}
.btn.block{display:flex;width:100%}
.btnrow{display:flex;gap:8px;flex-wrap:wrap}

/* forms */
.field{margin-bottom:14px}
.label{display:block;font-size:12.5px;font-weight:600;color:var(--muted);margin-bottom:6px}
.input,select.input,textarea.input{width:100%;font:inherit;font-size:15px;color:var(--text);background:var(--surface);border:1px solid var(--border2);border-radius:var(--r-sm);padding:10px 12px;outline:none}
.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.hint{font-size:12px;color:var(--faint);margin-top:6px}
.chips{display:flex;gap:7px;flex-wrap:wrap}
.chip{padding:7px 13px;border-radius:99px;border:1px solid var(--border2);background:var(--surface);font-weight:600;font-size:13px;cursor:pointer}
.chip:hover{border-color:var(--accent)}
.chip.on{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}

/* status */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:3px 9px;border-radius:99px}
.badge.ok{color:var(--ok);background:var(--ok-bg)}
.badge.warn{color:var(--warn);background:var(--warn-bg)}
.badge.danger{color:var(--danger);background:var(--danger-bg)}
.badge.off{color:var(--muted);background:var(--surface2)}
.dot{width:7px;height:7px;border-radius:50%;background:currentColor;flex:0 0 auto}

/* server cards */
.svr{display:flex;align-items:center;gap:14px;padding:14px 16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);box-shadow:var(--shadow);cursor:pointer;margin-bottom:10px}
.svr:hover{border-color:var(--accent)}
.svr .main{min-width:0;flex:1}
.svr .nm{font-weight:650;display:flex;align-items:center;gap:8px}
.svr .meta{color:var(--muted);font-size:12.5px;margin-top:2px;display:flex;gap:10px;flex-wrap:wrap}
.svr .ip{font-family:var(--mono);font-size:12.5px}
.svr .exp{font-size:12.5px;font-weight:600;white-space:nowrap}
.svr .exp.warn{color:var(--warn)}.svr .exp.danger{color:var(--danger)}
.svr .chev{color:var(--faint)}
.copy{cursor:pointer;border:1px solid var(--border2);border-radius:5px;background:var(--surface);color:var(--muted);font-size:11px;padding:1px 6px;margin-left:6px}
.copy:hover{border-color:var(--accent);color:var(--accent)}

/* kv */
.kv{display:grid;grid-template-columns:120px 1fr;gap:9px 14px;font-size:13.5px}
.kv .k{color:var(--muted)}
.kv .v{word-break:break-word}

/* plan pick cards */
.pick{border:1px solid var(--border2);border-radius:var(--r);padding:15px;cursor:pointer;background:var(--surface)}
.pick:hover{border-color:var(--accent)}
.pick.on{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.pick .t{font-weight:680}
.pick .specs{color:var(--muted);font-size:12.5px;margin-top:5px}
.pick .price{margin-top:9px;font-weight:680}

/* toggle switch */
.switch{position:relative;width:40px;height:23px;flex:0 0 auto;cursor:pointer}
.switch input{opacity:0;width:0;height:0;position:absolute}
.switch .track{position:absolute;inset:0;border-radius:99px;background:var(--border2);transition:background .15s}
.switch .track::before{content:"";position:absolute;left:2px;top:2px;width:19px;height:19px;border-radius:50%;background:#fff;transition:transform .15s;box-shadow:0 1px 2px rgba(0,0,0,.3)}
.switch input:checked + .track{background:var(--accent)}
.switch input:checked + .track::before{transform:translateX(17px)}
.switchrow{display:flex;align-items:center;gap:12px;padding:12px 0;border-top:1px solid var(--border)}
.switchrow .lab{flex:1}.switchrow .lab .t{font-weight:600}.switchrow .lab .s{font-size:12px;color:var(--muted)}

/* segmented control (theme) */
.seg{display:inline-flex;background:var(--surface2);border:1px solid var(--border2);border-radius:var(--r-sm);padding:3px;gap:3px}
.seg button{appearance:none;border:none;background:transparent;color:var(--muted);font:inherit;font-size:13px;font-weight:600;padding:6px 12px;border-radius:6px;cursor:pointer;display:inline-flex;align-items:center;gap:6px}
.seg button.on{background:var(--surface);color:var(--text);box-shadow:var(--shadow)}

/* drawers (right slide-over; bottom sheet on mobile) */
.scrim{position:fixed;inset:0;background:var(--scrim);z-index:50;opacity:0;transition:opacity .2s ease}
.scrim.on{opacity:1}
.drawer{position:fixed;top:0;right:0;height:100%;width:min(440px,100%);background:var(--surface);border-left:1px solid var(--border);box-shadow:var(--shadow-lg);display:flex;flex-direction:column;transform:translateX(100%);transition:transform .2s ease}
.scrim.on .drawer{transform:none}
.drawer-h{display:flex;align-items:center;gap:10px;padding:14px 18px;border-bottom:1px solid var(--border)}
.drawer-h .ttl{font-weight:680;font-size:16px;flex:1;min-width:0}
.drawer-b{padding:18px;overflow:auto;flex:1}
.drawer-b h2{margin-top:18px}.drawer-b h2:first-child{margin-top:0}
@media(max-width:760px){
  .scrim{display:flex;align-items:flex-end}
  .drawer{position:relative;width:100%;height:auto;max-height:90vh;border-left:none;border-top:1px solid var(--border);border-radius:16px 16px 0 0;transform:translateY(100%)}
  .scrim.on .drawer{transform:none}
  .drawer::before{content:"";position:absolute;top:8px;left:50%;transform:translateX(-50%);width:36px;height:4px;border-radius:2px;background:var(--border2)}
  .drawer-h{padding-top:20px}
}

/* dialog (confirm / typed) */
.dlg-scrim{position:fixed;inset:0;background:var(--scrim);display:flex;align-items:center;justify-content:center;padding:18px;z-index:60}
.dlg{background:var(--surface);border:1px solid var(--border);border-radius:14px;width:min(420px,100%);box-shadow:var(--shadow-lg);overflow:hidden}
.dlg-h{padding:15px 18px;font-weight:680;border-bottom:1px solid var(--border)}
.dlg-b{padding:18px}
.dlg-f{padding:13px 18px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px;background:var(--surface2)}

/* hero balance (wallet drawer) */
.hero{padding:6px 0 16px}
.hero .k{font-size:12px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.05em}
.hero .v{font-size:34px;font-weight:720;letter-spacing:-.02em;margin-top:4px}

/* history */
.tx{display:flex;align-items:center;gap:12px;padding:11px 0;border-top:1px solid var(--border);font-size:13.5px}
.tx:first-child{border-top:none}
.tx .txi{width:30px;height:30px;border-radius:8px;background:var(--surface2);display:flex;align-items:center;justify-content:center;color:var(--muted);flex:0 0 auto}
.tx .l{flex:1;min-width:0}.tx .l .t{font-weight:600}.tx .l .d{font-size:11.5px;color:var(--faint)}
.tx .amt{font-weight:680;font-variant-numeric:tabular-nums}
.tx .amt.pos{color:var(--ok)}.tx .amt.neg{color:var(--text)}

/* quote bar */
.quotebar{position:sticky;bottom:0;margin-top:16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);box-shadow:var(--shadow-lg);padding:13px 16px;display:flex;align-items:center;gap:14px}
.quotebar .tot{flex:1}.quotebar .tot .k{font-size:11px;color:var(--muted)}
.quotebar .tot .v{font-size:21px;font-weight:700}
@media(max-width:760px){.quotebar{bottom:calc(56px + env(safe-area-inset-bottom) + 8px)}}

/* toasts */
.toasts{position:fixed;right:16px;bottom:16px;display:flex;flex-direction:column;gap:8px;z-index:80;max-width:340px}
@media(max-width:760px){.toasts{bottom:calc(56px + env(safe-area-inset-bottom) + 12px);left:16px;right:16px;max-width:none}}
.toast{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:8px;padding:11px 14px;font-size:13px;box-shadow:var(--shadow-lg)}
.toast.ok{border-left-color:var(--ok)}.toast.err{border-left-color:var(--danger)}

/* skeleton / spinner / states */
.sk{background:linear-gradient(90deg,var(--surface2) 25%,var(--border) 37%,var(--surface2) 63%);background-size:400% 100%;animation:sh 1.3s ease infinite;border-radius:6px}
@keyframes sh{0%{background-position:100% 0}100%{background-position:-100% 0}}
.sk-card{height:64px;border-radius:var(--r);margin-bottom:10px}
.spinner{width:18px;height:18px;border:2px solid var(--border2);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;display:inline-block;vertical-align:-3px}
@keyframes spin{to{transform:rotate(360deg)}}
.empty{padding:48px 18px;text-align:center;color:var(--muted)}
.empty .ti{font-weight:650;color:var(--text);margin-bottom:6px}
.err-box{padding:13px 15px;background:var(--danger-bg);color:var(--danger);border-radius:var(--r-sm);font-size:13px;display:flex;align-items:center;gap:10px}
.err-box .btn{margin-left:auto}

/* login */
.login{min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;gap:0}
.login .box{width:100%;max-width:380px;text-align:center}
.login .mark{width:46px;height:46px;border-radius:12px;background:var(--accent);position:relative;margin:0 auto 18px}
.login .mark::before,.login .mark::after{content:"";position:absolute;left:9px;right:9px;height:7px;border-radius:2px;background:#fff}
.login .mark::before{top:12px}.login .mark::after{bottom:12px}
.login h1{font-size:23px;letter-spacing:-.02em}
.login p.lead{color:var(--muted);margin:8px 0 22px;font-size:14.5px;line-height:1.55}
.login .tg{display:flex;width:100%;align-items:center;justify-content:center;gap:9px;height:48px;border-radius:12px;background:var(--accent);color:var(--on-accent);font-weight:680;font-size:15px;border:none;cursor:pointer}
.login .tg:hover{background:var(--accent-press)}
.login .steps{display:flex;gap:8px;margin:18px 0 4px;text-align:left}
.login .steps .st{flex:1;font-size:11.5px;color:var(--muted)}
.login .steps .n{display:inline-flex;width:18px;height:18px;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-weight:700;align-items:center;justify-content:center;font-size:11px;margin-bottom:5px}
.login .divider{display:flex;align-items:center;gap:10px;color:var(--faint);font-size:12px;margin:18px 0}
.login .divider::before,.login .divider::after{content:"";flex:1;height:1px;background:var(--border)}
.login .reveal{color:var(--muted);font-size:13px;cursor:pointer;text-decoration:underline;text-underline-offset:2px}
.login .fb{margin-top:14px;text-align:left}
.login .foot{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:26px}