/* SignalsGuard design system — tokens, base and shared components.
   Brand reference: index.html (wordmark, Inter + JetBrains Mono, navy / cyan / gold).
   Components are prefixed sg- so they never collide with page-local classes. */

:root{
  /* surfaces */
  --sg-bg:#0a0e14;--sg-bg2:#0d1117;--sg-bg3:#11161f;--sg-bg4:#161c26;
  --sg-border:rgba(255,255,255,.07);--sg-border2:rgba(255,255,255,.13);--sg-border3:rgba(255,255,255,.2);
  /* text — t3 lifted from #566373 so small labels meet WCAG AA (>=4.5:1 on bg/bg2) */
  --sg-t1:#e8edf2;--sg-t2:#8b95a3;--sg-t3:#7b8696;--sg-t4:#3a4452;--sg-head:#f4f8fc;
  /* brand + semantic */
  --sg-cyan:#22d3ee;--sg-cyan-a:rgba(34,211,238,.35);--sg-cyan-glow:rgba(34,211,238,.08);
  --sg-gold:#f5b942;--sg-blue:#2563EB;--sg-blue-h:#1d4ed8;
  --sg-red:#f0613f;--sg-orange:#fb923c;--sg-amber:#e0a832;--sg-green:#3ec07a;--sg-violet:#a78bfa;
  /* protocol colours (as on the homepage strip) */
  --sg-p-ss7:#22d3ee;--sg-p-diameter:#a78bfa;--sg-p-gtp:#3ec07a;--sg-p-sip:#e0a832;
  /* type */
  --sg-sans:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  --sg-mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  /* shape + motion */
  --sg-r-sm:4px;--sg-r:6px;--sg-r-lg:10px;
  --sg-shadow:0 10px 40px rgba(0,0,0,.45);
  --sg-ease:cubic-bezier(.4,0,.2,1);
  --sg-nav-h:60px;
  --sg-focus:0 0 0 2px var(--sg-bg),0 0 0 4px rgba(34,211,238,.75);
}

/* ---------- base ---------- */
html{-webkit-text-size-adjust:100%;color-scheme:dark}
body{background:var(--sg-bg);color:var(--sg-t1);font-family:var(--sg-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;overflow-x:hidden}
::selection{background:rgba(34,211,238,.25);color:#fff}
:focus-visible{outline:none;box-shadow:var(--sg-focus);border-radius:var(--sg-r-sm)}
button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:none;box-shadow:var(--sg-focus)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.09);border-radius:6px;border:2px solid var(--sg-bg)}
::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.16)}
*{scrollbar-color:rgba(255,255,255,.12) transparent;scrollbar-width:thin}
img,svg,canvas{max-width:100%}
[id]{scroll-margin-top:calc(var(--sg-nav-h) + 16px)}
.sg-num,.sg-mono{font-family:var(--sg-mono);font-variant-numeric:tabular-nums}
.sg-sr{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.sg-skip{position:absolute;left:12px;top:-60px;z-index:1000;background:var(--sg-cyan);color:var(--sg-bg);font-weight:600;padding:8px 14px;border-radius:var(--sg-r);transition:top .15s}
.sg-skip:focus{top:10px}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

/* ---------- wordmark ---------- */
.sg-logo{font-family:var(--sg-mono);font-size:15px;font-weight:600;letter-spacing:.02em;text-transform:uppercase;color:var(--sg-t1);text-decoration:none;white-space:nowrap;display:inline-block;line-height:1}
.sg-logo b{color:var(--sg-cyan);font-weight:600}
.sg-logo .sg-logo-ctx{display:inline-block;margin-left:10px;font-weight:400;color:var(--sg-t3);font-size:11px;letter-spacing:.14em;padding-left:10px;border-left:1px solid var(--sg-border2)}

/* ---------- headers (portal + public share one shell) ---------- */
.sg-nav{position:sticky;top:0;z-index:300;height:var(--sg-nav-h);background:rgba(10,14,20,.9);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);border-bottom:1px solid var(--sg-border);transition:box-shadow .2s}
.sg-nav.sg-scrolled{box-shadow:0 4px 30px rgba(0,0,0,.4)}
.sg-nav.sg-fixed{position:fixed;left:0;right:0}
.sg-nav-in{height:100%;display:flex;align-items:center;gap:20px;max-width:1440px;margin:0 auto;padding:0 24px}
.sg-nav-pub .sg-nav-in{max-width:1100px;padding:0 2rem}
.sg-links{display:flex;align-items:center;gap:2px;margin-left:8px;padding:3px;background:rgba(255,255,255,.025);border:1px solid var(--sg-border);border-radius:10px}
.sg-links a{position:relative;display:inline-flex;align-items:center;gap:7px;height:32px;font-size:13px;font-weight:500;color:var(--sg-t2);text-decoration:none;padding:0 12px;border-radius:7px;border:1px solid transparent;transition:color .15s,background .15s,border-color .15s;white-space:nowrap}
.sg-links a:not([style*="none"]){display:inline-flex!important}
.sg-links a svg{width:15px;height:15px;flex:none;opacity:.75;transition:opacity .15s,color .15s}
.sg-links a:hover{color:var(--sg-t1);background:rgba(255,255,255,.04)}
.sg-links a:hover svg{opacity:1}
.sg-links a[aria-current="page"]{color:#fff;background:linear-gradient(180deg,rgba(34,211,238,.14),rgba(34,211,238,.06));border-color:rgba(34,211,238,.32);box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 0 18px rgba(34,211,238,.08)}
.sg-links a[aria-current="page"] svg{color:var(--sg-cyan);opacity:1}
.sg-links.sg-links-pub{background:none;border:none;padding:0;margin-left:auto}
.sg-links.sg-links-pub+.sg-nav-r{margin-left:8px}
.sg-nav-pub .sg-burger{}
.sg-links .sg-sep{width:1px;height:18px;background:var(--sg-border2);margin:0 4px}
.sg-nav-r{margin-left:auto;display:flex;align-items:center;gap:12px;min-width:0}
.sg-org{display:inline-flex;align-items:center;gap:8px;font-family:var(--sg-mono);font-size:11px;letter-spacing:.06em;color:var(--sg-t2);border:1px solid var(--sg-border);border-radius:999px;padding:5px 12px;max-width:260px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sg-org::before{content:'';flex:none;width:6px;height:6px;border-radius:50%;background:var(--sg-green);box-shadow:0 0 8px rgba(62,192,122,.7)}
.sg-org.sg-demo::before{background:var(--sg-amber);box-shadow:0 0 8px rgba(224,168,50,.7)}
.sg-org b{color:var(--sg-t1);font-weight:500;overflow:hidden;text-overflow:ellipsis}
.sg-user{font-size:12px;color:var(--sg-t3);max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sg-burger{display:none;margin-left:auto;width:40px;height:40px;border-radius:var(--sg-r);border:1px solid var(--sg-border2);background:transparent;color:var(--sg-t1);cursor:pointer;align-items:center;justify-content:center}
.sg-burger span,.sg-burger span::before,.sg-burger span::after{display:block;width:16px;height:1.5px;background:currentColor;border-radius:2px;position:relative;transition:transform .2s var(--sg-ease),opacity .2s}
.sg-burger span::before,.sg-burger span::after{content:'';position:absolute;left:0}
.sg-burger span::before{top:-5px}.sg-burger span::after{top:5px}
.sg-nav.sg-open .sg-burger span{background:transparent}
.sg-nav.sg-open .sg-burger span::before{transform:translateY(5px) rotate(45deg)}
.sg-nav.sg-open .sg-burger span::after{transform:translateY(-5px) rotate(-45deg)}
/* public header actions */
.sg-btn-nav{font-size:13.5px;font-weight:500;color:var(--sg-t1);padding:8px 18px;border:1px solid var(--sg-border2);border-radius:7px;text-decoration:none;white-space:nowrap;transition:border-color .15s,color .15s}
.sg-btn-nav:hover{border-color:var(--sg-cyan);color:#fff}
.sg-btn-nav.sg-cta{background:var(--sg-blue);border-color:var(--sg-blue);color:#fff}
.sg-btn-nav.sg-cta:hover{background:var(--sg-blue-h);border-color:var(--sg-blue-h)}

/* account menu */
.sg-acct{position:relative}
.sg-acct-btn{display:inline-flex;align-items:center;gap:8px;height:36px;max-width:260px;padding:0 10px 0 12px;border:1px solid var(--sg-border2);border-radius:8px;background:transparent;color:var(--sg-t2);font:500 12.5px var(--sg-sans);cursor:pointer;transition:color .15s,border-color .15s,background .15s}
.sg-acct-btn:hover,.sg-acct-open .sg-acct-btn{color:var(--sg-t1);border-color:var(--sg-border3);background:rgba(255,255,255,.03)}
.sg-acct-btn.sg-acct-on{border-color:rgba(34,211,238,.32);color:#fff}
.sg-acct-btn svg{width:15px;height:15px;flex:none}
.sg-acct-btn svg:last-child{width:13px;height:13px;opacity:.7;transition:transform .15s}
.sg-acct-open .sg-acct-btn svg:last-child{transform:rotate(180deg)}
.sg-acct-btn .sg-user{color:inherit;font-size:12.5px;max-width:180px}
.sg-acct-menu{position:absolute;right:0;top:calc(100% + 8px);min-width:210px;padding:6px;background:var(--sg-bg3);border:1px solid var(--sg-border2);border-radius:10px;box-shadow:var(--sg-shadow);display:none;z-index:10}
.sg-acct-open .sg-acct-menu{display:block;animation:sg-pop .16s var(--sg-ease)}
.sg-acct-i{display:flex;align-items:center;gap:10px;height:36px;padding:0 10px;border-radius:7px;color:var(--sg-t2);font-size:13px;font-weight:500;text-decoration:none}
.sg-acct-i:not([style*="none"]){display:flex!important}
.sg-acct-i svg{width:15px;height:15px;flex:none;opacity:.8}
.sg-acct-i:hover{background:rgba(255,255,255,.05);color:var(--sg-t1)}
.sg-acct-i[aria-current="page"]{color:#fff;background:var(--sg-cyan-glow)}
.sg-acct-i.sg-out{border-top:1px solid var(--sg-border);border-radius:0 0 7px 7px;margin-top:4px;padding-top:2px;height:40px}
.sg-acct-i.sg-out:hover{color:var(--sg-red)}
@media (max-width:1240px){.sg-acct-btn .sg-user{display:none}}
@media (max-width:1180px){.sg-links a{padding:0 9px}.sg-links a svg{display:none}.sg-org{max-width:170px}}
.sg-menu{display:contents}
@media (max-width:1024px){
  .sg-nav-in{padding:0 16px;gap:12px}
  .sg-nav-pub .sg-nav-in{padding:0 16px}
  .sg-burger{display:inline-flex}
  .sg-menu{display:none}
  .sg-nav.sg-open .sg-menu{display:flex;flex-direction:column;position:fixed;top:var(--sg-nav-h);left:0;right:0;max-height:calc(100vh - var(--sg-nav-h));overflow-y:auto;padding:10px 12px 18px;background:#0a0e14;border-bottom:1px solid var(--sg-border);box-shadow:var(--sg-shadow);animation:sg-drop .18s var(--sg-ease)}
  .sg-nav.sg-open .sg-links{flex-direction:column;align-items:stretch;margin:0;background:none;border:none;padding:0}
  .sg-nav.sg-open .sg-links .sg-sep{display:none}
  .sg-nav.sg-open .sg-links a{height:46px;padding:0 14px;font-size:15px}
  .sg-nav.sg-open .sg-nav-r{margin:8px 14px 0;padding-top:14px;border-top:1px solid var(--sg-border);flex-wrap:wrap}
  .sg-nav.sg-open .sg-org{max-width:100%}
  .sg-nav.sg-open .sg-nav-r{flex-direction:column;align-items:stretch}
  .sg-nav.sg-open .sg-acct-btn{display:none}
  .sg-nav.sg-open .sg-acct-menu{display:block;position:static;background:none;border:none;box-shadow:none;padding:0;min-width:0;animation:none}
  .sg-nav.sg-open .sg-acct-i{height:46px;padding:0 2px;font-size:15px}
  .sg-nav.sg-open .sg-acct-i.sg-out{border-top:none;margin-top:0}
}
@keyframes sg-drop{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* page bar: page title + page-specific controls under the portal header */
.sg-pagebar{border-bottom:1px solid var(--sg-border);background:linear-gradient(180deg,rgba(34,211,238,.025),transparent 80%),var(--sg-bg)}
.sg-pagebar-in{max-width:1440px;margin:0 auto;padding:18px 24px 16px;display:flex;align-items:flex-end;justify-content:space-between;gap:12px 20px;flex-wrap:wrap}
.sg-eyebrow{display:inline-flex;align-items:center;gap:.7rem;font-family:var(--sg-mono);font-size:10px;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:var(--sg-cyan)}
.sg-eyebrow::before{content:'';width:18px;height:1px;background:var(--sg-cyan);opacity:.6}
.sg-pagetitle{font-size:22px;font-weight:400;letter-spacing:-.01em;color:var(--sg-head);margin:6px 0 0;line-height:1.2}
.sg-pagesub{margin:5px 0 0;font-size:13.5px;line-height:1.5;color:var(--sg-t2);max-width:760px}
.sg-pagemeta{display:flex;align-items:center;gap:10px 14px;flex-wrap:wrap;font-size:12px;color:var(--sg-t2)}
@media (max-width:900px){.sg-pagebar-in{padding:14px 16px}.sg-pagetitle{font-size:19px}}

/* ---------- buttons ---------- */
.sg-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--sg-sans);font-size:13px;font-weight:500;line-height:1;padding:10px 18px;border-radius:7px;border:1px solid transparent;cursor:pointer;text-decoration:none;white-space:nowrap;transition:background .15s,border-color .15s,color .15s,box-shadow .15s}
.sg-btn:disabled,.sg-btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed}
.sg-btn-primary{background:var(--sg-blue);color:#fff}
.sg-btn-primary:hover:not(:disabled){background:var(--sg-blue-h)}
.sg-btn-accent{background:var(--sg-cyan);color:var(--sg-bg);font-weight:600}
.sg-btn-accent:hover:not(:disabled){background:#4fe0f3}
.sg-btn-secondary{background:transparent;color:var(--sg-cyan);border-color:var(--sg-cyan-a)}
.sg-btn-secondary:hover:not(:disabled){background:var(--sg-cyan-glow)}
.sg-btn-ghost{background:transparent;color:var(--sg-t2);border-color:var(--sg-border2)}
.sg-btn-ghost:hover:not(:disabled){color:var(--sg-t1);border-color:var(--sg-border3)}
.sg-btn-danger{background:rgba(240,97,63,.1);color:var(--sg-red);border-color:rgba(240,97,63,.4)}
.sg-btn-danger:hover:not(:disabled){background:rgba(240,97,63,.18)}
.sg-btn-sm{font-size:12px;padding:7px 12px;border-radius:var(--sg-r)}

/* ---------- segmented control / pill tabs ----------
   <div class="sg-seg" role="group"><button class="active">All</button>…</div>
   Works with .active, [aria-pressed=true] or [aria-selected=true] on the children. */
.sg-seg{display:inline-flex;align-items:center;gap:2px;padding:3px;background:var(--sg-bg2);border:1px solid var(--sg-border2);border-radius:9px;max-width:100%;overflow-x:auto;scrollbar-width:none}
.sg-seg::-webkit-scrollbar{display:none}
.sg-seg>*{appearance:none;display:inline-flex;align-items:center;justify-content:center;gap:6px;height:30px;padding:0 14px;border:1px solid transparent;border-radius:6px;background:transparent;color:var(--sg-t2);font:500 12.5px/1 var(--sg-sans);letter-spacing:0;text-transform:none;white-space:nowrap;cursor:pointer;text-decoration:none;transition:color .15s,background .15s,border-color .15s,box-shadow .15s}
.sg-seg>*:hover{color:var(--sg-t1);background:rgba(255,255,255,.04)}
.sg-seg>.active,.sg-seg>[aria-pressed="true"],.sg-seg>[aria-selected="true"]{color:#fff;background:var(--sg-bg4);border-color:var(--sg-border3);box-shadow:0 1px 2px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.05)}
.sg-seg-sm>*{height:26px;padding:0 11px;font-size:12px}
.sg-dot{width:7px;height:7px;border-radius:50%;flex:none;display:inline-block}

/* styled native select */
.sg-select{appearance:none;-webkit-appearance:none;height:32px;padding:0 34px 0 12px;background:var(--sg-bg2) url("data:image/svg+xml,%3Csvg xmlns=%27http://www.w3.org/2000/svg%27 width=%2712%27 height=%2712%27 viewBox=%270 0 24 24%27 fill=%27none%27 stroke=%27%238b95a3%27 stroke-width=%272.2%27 stroke-linecap=%27round%27 stroke-linejoin=%27round%27%3E%3Cpath d=%27m6 9 6 6 6-6%27/%3E%3C/svg%3E") no-repeat right 11px center;border:1px solid var(--sg-border2);border-radius:8px;color:var(--sg-t1);font:500 12.5px var(--sg-sans);cursor:pointer;outline:none;transition:border-color .15s,box-shadow .15s}
.sg-select:hover{border-color:var(--sg-border3)}
.sg-select:focus{border-color:rgba(34,211,238,.5);box-shadow:0 0 0 3px rgba(34,211,238,.12)}
.sg-select option{background:var(--sg-bg2);color:var(--sg-t1)}

/* vertical side navigation (admin, docs) */
.sg-sidenav{display:flex;flex-direction:column;gap:2px;padding:14px 10px}
.sg-sidenav-h{font-family:var(--sg-mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--sg-t3);padding:14px 12px 6px}
.sg-sidenav-i{display:flex;align-items:center;gap:10px;height:36px;padding:0 12px;border-radius:8px;border:1px solid transparent;color:var(--sg-t2);font-size:13px;font-weight:500;cursor:pointer;text-decoration:none;user-select:none;transition:color .15s,background .15s,border-color .15s}
.sg-sidenav-i:hover{color:var(--sg-t1);background:rgba(255,255,255,.04)}
.sg-sidenav-i.active{color:#fff;background:linear-gradient(90deg,rgba(34,211,238,.13),rgba(34,211,238,.03));border-color:rgba(34,211,238,.25)}

/* status chip (live / empty / error) */
.sg-status{display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 11px;border-radius:999px;border:1px solid var(--sg-border2);font-family:var(--sg-mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--sg-t2);white-space:nowrap}
.sg-status::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}

/* panel subtitle: one short "what this tells you" line */
.sg-sub{display:block;font-family:var(--sg-sans);font-size:12px;font-weight:400;letter-spacing:0;text-transform:none;color:var(--sg-t3);margin-top:3px;line-height:1.5}

/* ---------- panels / cards / KPI ---------- */
.sg-panel{background:var(--sg-bg2);border:1px solid var(--sg-border);border-radius:var(--sg-r-lg);overflow:hidden}
.sg-panel-h{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;border-bottom:1px solid var(--sg-border);font-family:var(--sg-mono);font-size:11px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--sg-t1)}
.sg-panel-b{padding:16px}
.sg-kpi{background:var(--sg-bg2);border:1px solid var(--sg-border);border-radius:var(--sg-r-lg);padding:16px 18px}
.sg-kpi-l{font-family:var(--sg-mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--sg-t3)}
.sg-kpi-v{font-family:var(--sg-mono);font-size:28px;font-weight:300;line-height:1.1;margin-top:8px;font-variant-numeric:tabular-nums}

/* ---------- tables ---------- */
.sg-table-wrap{overflow:auto;-webkit-overflow-scrolling:touch;max-width:100%}
.sg-table{width:100%;border-collapse:separate;border-spacing:0;font-size:12.5px}
.sg-table th{position:sticky;top:0;z-index:1;background:var(--sg-bg2);text-align:left;font-family:var(--sg-mono);font-size:10px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--sg-t3);padding:10px 12px;border-bottom:1px solid var(--sg-border2);white-space:nowrap}
.sg-table td{padding:10px 12px;border-bottom:1px solid var(--sg-border);vertical-align:middle}
.sg-table tr:hover td{background:rgba(255,255,255,.025)}

/* ---------- badges / pills ---------- */
.sg-badge{display:inline-flex;align-items:center;gap:5px;font-family:var(--sg-mono);font-size:10px;font-weight:600;letter-spacing:.06em;padding:3px 8px;border-radius:var(--sg-r-sm);border:1px solid;white-space:nowrap;line-height:1.3}
.sg-badge-cyan{color:var(--sg-cyan);background:rgba(34,211,238,.1);border-color:rgba(34,211,238,.28)}
.sg-badge-red{color:var(--sg-red);background:rgba(240,97,63,.12);border-color:rgba(240,97,63,.32)}
.sg-badge-orange{color:var(--sg-orange);background:rgba(251,146,60,.12);border-color:rgba(251,146,60,.3)}
.sg-badge-amber{color:var(--sg-amber);background:rgba(224,168,50,.12);border-color:rgba(224,168,50,.3)}
.sg-badge-green{color:var(--sg-green);background:rgba(62,192,122,.12);border-color:rgba(62,192,122,.3)}
.sg-badge-violet{color:var(--sg-violet);background:rgba(167,139,250,.12);border-color:rgba(167,139,250,.3)}
.sg-badge-dim{color:var(--sg-t2);background:rgba(139,149,163,.08);border-color:var(--sg-border2)}

/* ---------- forms ---------- */
.sg-field{margin-bottom:14px}
.sg-label{display:block;font-family:var(--sg-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--sg-t3);margin-bottom:6px}
.sg-input{width:100%;background:var(--sg-bg2);border:1px solid var(--sg-border2);border-radius:var(--sg-r);padding:9px 12px;color:var(--sg-t1);font-family:var(--sg-sans);font-size:13px;outline:none;transition:border-color .15s,box-shadow .15s}
.sg-input:focus{border-color:rgba(34,211,238,.5);box-shadow:0 0 0 3px rgba(34,211,238,.12)}
.sg-input::placeholder{color:var(--sg-t3);opacity:.8}

/* ---------- overlays: modal + drawer ---------- */
.sg-backdrop{position:fixed;inset:0;background:rgba(3,6,10,.72);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px)}
.sg-modal{background:var(--sg-bg2);border:1px solid var(--sg-border2);border-radius:12px;box-shadow:var(--sg-shadow)}
@keyframes sg-fade{from{opacity:0}to{opacity:1}}
@keyframes sg-pop{from{opacity:0;transform:translateY(8px) scale(.985)}to{opacity:1;transform:none}}
@keyframes sg-slide{from{transform:translateX(24px);opacity:0}to{transform:none;opacity:1}}
.sg-anim-fade{animation:sg-fade .18s var(--sg-ease)}
.sg-anim-pop{animation:sg-pop .22s var(--sg-ease)}
.sg-anim-slide{animation:sg-slide .24s var(--sg-ease)}

/* ---------- toast ---------- */
.sg-toast{position:fixed;right:24px;bottom:24px;z-index:1000;max-width:360px;padding:12px 16px;border-radius:var(--sg-r-lg);background:var(--sg-bg3);border:1px solid var(--sg-border2);box-shadow:var(--sg-shadow);font-size:13px;color:var(--sg-t1);animation:sg-pop .2s var(--sg-ease)}

/* ---------- empty / loading ---------- */
.sg-empty{padding:40px 20px;text-align:center;color:var(--sg-t3);font-size:13px}
.sg-empty b{display:block;color:var(--sg-t2);font-weight:500;font-size:14px;margin-bottom:4px}
.sg-skel{position:relative;overflow:hidden;background:rgba(255,255,255,.045);border-radius:var(--sg-r-sm);color:transparent!important;min-height:.9em}
.sg-skel::after{content:'';position:absolute;inset:0;transform:translateX(-100%);background:linear-gradient(90deg,transparent,rgba(255,255,255,.06),transparent);animation:sg-shimmer 1.4s infinite}
@keyframes sg-shimmer{to{transform:translateX(100%)}}
.sg-skel-lines{display:flex;flex-direction:column;gap:10px;padding:16px}
.sg-skel-lines i{display:block;height:12px;border-radius:4px;background:rgba(255,255,255,.045);position:relative;overflow:hidden}
.sg-skel-lines i::after{content:'';position:absolute;inset:0;transform:translateX(-100%);background:linear-gradient(90deg,transparent,rgba(255,255,255,.06),transparent);animation:sg-shimmer 1.4s infinite}
.sg-skel-lines i:nth-child(3n+2){width:82%}.sg-skel-lines i:nth-child(3n){width:64%}
.sg-spin{width:14px;height:14px;border:2px solid var(--sg-border2);border-top-color:var(--sg-cyan);border-radius:50%;animation:sg-rot .7s linear infinite;display:inline-block;vertical-align:-2px}
@keyframes sg-rot{to{transform:rotate(360deg)}}

/* ---------- tooltip (data-tip="…") ---------- */
[data-tip]{position:relative}
[data-tip]:hover::after,[data-tip]:focus-visible::after{content:attr(data-tip);position:absolute;left:50%;bottom:calc(100% + 8px);transform:translateX(-50%);z-index:50;width:max-content;max-width:260px;white-space:normal;background:var(--sg-bg4);border:1px solid var(--sg-border2);color:var(--sg-t1);font:400 12px/1.5 var(--sg-sans);letter-spacing:0;text-transform:none;padding:7px 10px;border-radius:var(--sg-r);box-shadow:var(--sg-shadow);pointer-events:none;animation:sg-fade .12s}

/* ---------- public footer ---------- */
.sg-foot{border-top:1px solid var(--sg-border);padding:2rem 0;font-family:var(--sg-mono);font-size:11px;color:var(--sg-t3);background:var(--sg-bg)}
.sg-foot-in{max-width:1100px;margin:0 auto;padding:0 2rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}
.sg-foot a{color:var(--sg-t2);text-decoration:none}
.sg-foot a:hover{color:var(--sg-cyan)}
.sg-foot nav{display:flex;gap:6px 16px;flex-wrap:wrap}
@media (max-width:600px){.sg-foot-in{padding:0 16px}}

/* ---------- long-form public documents (privacy, terms) ---------- */
.sg-doc{max-width:820px;margin:0 auto;padding:56px 2rem 72px}
.sg-doc h1{font-size:2.4rem;font-weight:300;letter-spacing:-.02em;color:var(--sg-head);line-height:1.15;margin:.9rem 0 .5rem}
.sg-doc .subtitle{font-family:var(--sg-mono);font-size:11px;letter-spacing:.06em;color:var(--sg-t3);margin-bottom:2.5rem}
.sg-doc h2{font-size:1.2rem;font-weight:500;color:var(--sg-head);margin:2.75rem 0 .8rem;padding-top:1.25rem;border-top:1px solid var(--sg-border)}
.sg-doc h3{font-size:1rem;font-weight:500;color:var(--sg-t1);margin:1.6rem 0 .5rem}
.sg-doc p,.sg-doc li{color:var(--sg-t2);font-size:14.5px;line-height:1.8;margin-bottom:.8rem}
.sg-doc ul,.sg-doc ol{padding-left:1.4rem;margin-bottom:.9rem}
.sg-doc li{margin-bottom:.35rem}
.sg-doc strong{color:var(--sg-t1);font-weight:600}
.sg-doc a{color:var(--sg-cyan);text-decoration:none;border-bottom:1px solid rgba(34,211,238,.3)}
.sg-doc a:hover{border-bottom-color:var(--sg-cyan)}
.sg-doc code{font-family:var(--sg-mono);font-size:.85em;background:var(--sg-bg3);border:1px solid var(--sg-border);padding:1px 6px;border-radius:4px;color:var(--sg-t1)}
.sg-doc .highlight{background:linear-gradient(90deg,rgba(34,211,238,.06),rgba(34,211,238,.015));border:1px solid rgba(34,211,238,.18);border-left:2px solid var(--sg-cyan);padding:1rem 1.25rem;border-radius:0 var(--sg-r) var(--sg-r) 0;margin:1.25rem 0;color:var(--sg-t2);line-height:1.8}
.sg-doc .table-wrap{overflow-x:auto;margin:1.1rem 0;border:1px solid var(--sg-border);border-radius:var(--sg-r-lg)}
.sg-doc table{width:100%;border-collapse:collapse;font-size:13px}
.sg-doc th{background:var(--sg-bg2);font-family:var(--sg-mono);font-size:10px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--sg-t3);padding:10px 14px;text-align:left;border-bottom:1px solid var(--sg-border2);white-space:nowrap}
.sg-doc td{padding:10px 14px;border-bottom:1px solid var(--sg-border);color:var(--sg-t2);vertical-align:top}
.sg-doc tr:last-child td{border-bottom:none}
@media (max-width:600px){.sg-doc{padding:36px 16px 56px}.sg-doc h1{font-size:1.9rem}}