:root{
      --navy-900:#0a1628; --navy-800:#0e2038; --navy-700:#14335c;
      --blue-700:#1d4ed8; --blue-600:#2563eb; --blue-500:#3b82f6; --blue-100:#dbeafe; --blue-50:#eff6ff;
      --ink:#1c2733; --muted:#5c6b7d; --line:#e3e9f2; --bg:#f4f7fb; --card:#ffffff;
      --green:#15803d; --green-bg:#dcfce7;
      --red:#b91c1c; --red-bg:#fef2f2;
      --radius:16px; --shadow:0 12px 32px rgba(10,22,40,.10); --shadow-sm:0 4px 14px rgba(10,22,40,.07);
      --maxw:1140px;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
    body{margin:0;font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.65;font-size:16px;overflow-x:hidden}
    img,svg,video,canvas{max-width:100%;height:auto}
    [hidden]{display:none !important}
    h1,h2,h3,h4{line-height:1.25;color:var(--navy-900);margin:0 0 .5em;font-weight:700}
    p{margin:0 0 1em}
    a{color:var(--blue-600);text-decoration:none}
    a:hover{text-decoration:underline}
    section[id]{scroll-margin-top:86px}
    .container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
    .mono{font-family:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
    .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
    .skip-link{position:absolute;left:-9999px;top:0;background:var(--navy-900);color:#fff;padding:10px 16px;z-index:2100;border-radius:0 0 10px 0}
    .skip-link:focus{left:0}
    .btn{display:inline-flex;align-items:center;gap:8px;border:0;border-radius:12px;padding:12px 22px;font:600 15px/1 'Inter',sans-serif;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease;text-decoration:none}
    .btn-primary{background:linear-gradient(135deg,var(--blue-600),var(--blue-500));color:#fff;box-shadow:0 6px 16px rgba(37,99,235,.35)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(37,99,235,.4);text-decoration:none}
    .btn-ghost{background:#eef2f7;color:var(--navy-800)}
    .btn-ghost:hover{background:#e2e8f0;text-decoration:none}
    .btn[disabled]{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
    .icon-btn{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--navy-800);cursor:pointer;transition:background .15s,transform .15s}
    .icon-btn:hover{background:var(--blue-50);transform:translateY(-1px)}
    .icon-btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}
    :focus-visible{outline:3px solid var(--blue-500);outline-offset:2px;border-radius:6px}


    /* Header */
    .site-header{position:sticky;top:0;z-index:1200;background:rgba(10,22,40,.94);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08)}
    .header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:var(--maxw);margin:0 auto;padding:14px 20px}
    .brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:19px;letter-spacing:.2px;text-decoration:none}
    .brand:hover{text-decoration:none}
    .brand-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--blue-600),var(--blue-500));box-shadow:0 4px 12px rgba(37,99,235,.5);color:#fff;font-size:17px}
    .brand .accent{color:var(--blue-500)}
    .main-nav{display:flex;align-items:center;gap:4px}
    .main-nav a,.main-nav button.nav-link{color:#c7d2e3;background:none;border:0;font:500 14.5px 'Inter',sans-serif;padding:9px 13px;border-radius:9px;cursor:pointer;text-decoration:none;transition:color .15s,background .15s}
    .main-nav a:hover,.main-nav button.nav-link:hover{color:#fff;background:rgba(255,255,255,.08);text-decoration:none}
    .nav-toggle{display:none;background:none;border:1px solid rgba(255,255,255,.25);color:#fff;width:42px;height:42px;border-radius:10px;cursor:pointer;font-size:17px}

    /* Hero */
    .hero{position:relative;background:radial-gradient(1100px 480px at 80% -10%,rgba(59,130,246,.35),transparent 60%),linear-gradient(160deg,var(--navy-900) 0%,var(--navy-800) 55%,#12294f 100%);color:#fff;padding:74px 0 118px;text-align:center;overflow:hidden}
    .hero h1{color:#fff;font-size:clamp(2rem,4.6vw,3.1rem);font-weight:800;letter-spacing:-.5px;margin-bottom:14px}
    .hero p.lead{max-width:660px;margin:0 auto 26px;color:#c4d3e8;font-size:clamp(1rem,1.6vw,1.13rem)}
    .status-pill{display:inline-flex;align-items:center;gap:10px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#dbe7f7;padding:10px 18px;border-radius:999px;font-size:14px;font-weight:500}
    .status-dot{width:10px;height:10px;border-radius:50%;background:#fbbf24;flex:0 0 auto}
    .status-pill.is-ok .status-dot{background:#34d399}
    .status-pill.is-error .status-dot{background:#f87171}
    .spinner{width:15px;height:15px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite;display:none}
    .status-pill.is-loading .spinner{display:inline-block}
    .status-pill.is-loading .status-dot{display:none}
    @keyframes spin{to{transform:rotate(360deg)}}
    .hero-badges{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:26px}
    .hero-badges span{font-size:12.5px;color:#a9bcd6;border:1px solid rgba(255,255,255,.14);padding:6px 12px;border-radius:999px}
    .hero-badges i{margin-right:5px}


    /* Sections */
    .section{padding:64px 0}
    .section-head{text-align:center;max-width:660px;margin:0 auto 40px}
    .section-head h2{font-size:clamp(1.5rem,3vw,2rem)}
    .section-head p{color:var(--muted);margin:0}
    .eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--blue-600);background:var(--blue-50);border:1px solid var(--blue-100);padding:5px 12px;border-radius:999px;margin-bottom:14px}

    /* IP dashboard */
    .dashboard{margin-top:-78px;position:relative;z-index:5;padding-bottom:10px}
    .dash-card{background:var(--card);border-radius:20px;box-shadow:var(--shadow);border:1px solid var(--line);padding:30px}
    .ip-main{display:flex;flex-wrap:wrap;align-items:center;gap:16px;padding-bottom:22px;border-bottom:1px solid var(--line)}
    .ip-main .label{display:block;font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
    .ip-value{display:inline-block;font-size:clamp(1.4rem,4.2vw,2.3rem);font-weight:700;color:var(--navy-900);word-break:break-all}
    .ip-actions{display:flex;gap:10px;margin-left:auto}
    .version-row{display:flex;flex-wrap:wrap;gap:12px;margin:20px 0 4px}
    .version-chip{display:inline-flex;align-items:center;gap:9px;border-radius:12px;padding:10px 15px;font-size:14px;font-weight:600;border:1px solid var(--line);background:#f8fafc;color:var(--muted)}
    .version-chip .dot{width:9px;height:9px;border-radius:50%;background:#cbd5e1;flex:0 0 auto}
    .version-chip.is-on{background:var(--green-bg);border-color:#bbf7d0;color:var(--green)}
    .version-chip.is-on .dot{background:#22c55e}
    .version-chip .v{font-weight:700;word-break:break-all}
    .info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:14px;margin-top:20px}
    .info-item{display:flex;gap:12px;align-items:flex-start;border:1px solid var(--line);border-radius:14px;padding:15px 16px;background:#fbfcfe}
    .info-item .ic{flex:0 0 auto;width:38px;height:38px;border-radius:10px;background:var(--blue-50);color:var(--blue-600);display:inline-flex;align-items:center;justify-content:center;font-size:15px}
    .info-item .k{display:block;font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
    .info-item .v{display:block;font-weight:600;color:var(--navy-900);font-size:15px;word-break:break-word}
    .skeleton{display:inline-block;height:18px;width:70%;border-radius:6px;background:linear-gradient(90deg,#e8edf4 25%,#f4f7fb 50%,#e8edf4 75%);background-size:200% 100%;animation:shimmer 1.3s infinite}
    @keyframes shimmer{to{background-position:-200% 0}}
    .dash-error{display:none;gap:14px;align-items:center;background:var(--red-bg);border:1px solid #fecaca;color:var(--red);border-radius:14px;padding:16px 18px;margin-bottom:18px}
    .dash-error.show{display:flex}
    .dash-error p{margin:0;font-size:14.5px}
    .dash-note{margin:18px 0 0;font-size:13.5px;color:var(--muted);display:flex;gap:9px;align-items:flex-start}
    .dash-note i{color:var(--blue-500);margin-top:3px}
    .dash-meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-top:18px}
    .dash-meta .checked{font-size:13px;color:var(--muted)}

    /* Map */
    .map-wrap{position:relative;z-index:1;border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);background:#e8eef6}
    #map{width:100%;height:400px;min-height:320px}
    .map-fallback{position:absolute;inset:0;display:none;align-items:center;justify-content:center;text-align:center;padding:30px;color:var(--muted);background:repeating-linear-gradient(45deg,#eef2f7,#eef2f7 14px,#f6f9fc 14px,#f6f9fc 28px)}
    .map-fallback.show{display:flex}
    .map-caption{margin:14px 0 0;font-size:13.5px;color:var(--muted);display:flex;gap:9px;align-items:flex-start}
    .map-caption i{color:var(--blue-500);margin-top:3px}

    /* Tools grid */
    .tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}
    .tool-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:26px 22px;box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .18s ease;display:flex;flex-direction:column;gap:10px}
    .tool-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .tool-card .ic{width:48px;height:48px;border-radius:13px;background:linear-gradient(135deg,var(--blue-600),var(--blue-500));color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:4px}
    .tool-card h3{margin:0;font-size:17px}
    .tool-card p{margin:0;color:var(--muted);font-size:14px;flex:1}
    .badge{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:4px 10px;border-radius:999px;align-self:flex-start}
    .badge-live{background:var(--green-bg);color:var(--green)}
    .tool-card .btn{justify-content:center;margin-top:4px}

    /* How it works steps */
    .steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
    .step{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:26px 22px;box-shadow:var(--shadow-sm)}
    .step .num{width:38px;height:38px;border-radius:50%;background:var(--navy-900);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:700;margin-bottom:12px}
    .step h3{font-size:16.5px;margin-bottom:6px}
    .step p{margin:0;color:var(--muted);font-size:14.5px}


    /* Guide */
    .guide-card{background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-sm);padding:clamp(24px,4vw,52px)}
    .guide-card h2{font-size:clamp(1.3rem,2.6vw,1.65rem);padding-left:16px;border-left:4px solid var(--blue-500);margin-top:2.1em}
    .guide-card h2:first-of-type{margin-top:0}
    .guide-card h3{font-size:1.12rem;margin-top:1.6em;padding-left:16px}
    .guide-card p,.guide-card li{color:#3c4a5a;font-size:15.8px}
    .guide-card ul,.guide-card ol{padding-left:22px;margin:0 0 1em}
    .guide-card li{margin-bottom:6px}
    .guide-card code{background:#eef2f7;border-radius:6px;padding:2px 7px;font-size:13.5px;font-family:'JetBrains Mono',ui-monospace,monospace;color:var(--navy-800)}
    .toc{background:#f8fafc;border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin:0 0 30px}
    .toc strong{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
    .toc ul{columns:2;column-gap:34px;margin:10px 0 0;padding-left:18px}
    .toc li{margin-bottom:5px;font-size:14px;break-inside:avoid}
    .table-wrap{overflow-x:auto;margin:0 0 1.2em;border-radius:12px}
    table.compare{width:100%;border-collapse:collapse;font-size:14.5px;min-width:540px}
    table.compare th,table.compare td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
    table.compare thead th{background:var(--navy-900);color:#fff;font-size:13px;letter-spacing:.04em}
    table.compare tbody th{background:var(--blue-50);color:var(--navy-800);width:30%}
    .callout{border-left:4px solid var(--blue-500);background:var(--blue-50);border-radius:0 12px 12px 0;padding:16px 18px;margin:0 0 1.2em;font-size:14.8px;color:#274060}
    .callout p{margin:0}

    /* FAQ */
    .faq-list{display:flex;flex-direction:column;gap:12px;max-width:840px;margin:0 auto}
    .faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden}
    .faq-item h3{margin:0;font-size:15.5px}
    .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;background:none;border:0;padding:18px 20px;font:600 15.5px 'Inter',sans-serif;color:var(--navy-900);cursor:pointer;text-align:left}
    .faq-q:hover{color:var(--blue-700)}
    .faq-q i{transition:transform .2s ease;color:var(--blue-500);flex:0 0 auto}
    .faq-item.open .faq-q i{transform:rotate(180deg)}
    .faq-a{padding:0 20px;display:none}
    .faq-item.open .faq-a{display:block}
    .faq-a p{color:#3c4a5a;font-size:15px;margin:0 0 16px}


    .form-row{margin-bottom:14px}
    .form-row label{display:block;font-size:13px;font-weight:600;color:var(--navy-800);margin-bottom:6px}
    .form-row input,.form-row textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 13px;font:400 14.5px 'Inter',sans-serif;color:var(--ink);background:#fbfcfe}
    .form-row input:focus,.form-row textarea:focus{border-color:var(--blue-500);outline:3px solid var(--blue-100)}
    .form-hint{font-size:12.5px;color:var(--muted);margin:10px 0 0}

    /* Footer */
    .site-footer{background:var(--navy-900);color:#a9bcd6;margin-top:20px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;padding:54px 0 40px}
    .site-footer h3{color:#fff;font-size:15px;margin:0 0 14px;letter-spacing:.03em}
    .site-footer p{font-size:14px;margin:0}
    .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:14px}
    .footer-brand .accent{color:var(--blue-500)}
    .footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
    .footer-links a,.footer-links button{color:#a9bcd6;background:none;border:0;padding:0;font:400 14px 'Inter',sans-serif;cursor:pointer;text-align:left;text-decoration:none}
    .footer-links a:hover,.footer-links button:hover{color:#fff;text-decoration:underline}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;font-size:13px;display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between}
    .footer-bottom a{color:#c7d2e3}

    /* Responsive */
    @media (max-width:900px){
      .footer-grid{grid-template-columns:1fr 1fr}
      .toc ul{columns:1}
    }
    @media (max-width:860px){
      .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
      .main-nav{position:absolute;top:100%;left:0;right:0;background:var(--navy-900);flex-direction:column;align-items:stretch;padding:12px 16px 18px;gap:4px;display:none;border-bottom:1px solid rgba(255,255,255,.1)}
      .main-nav.open{display:flex}
      .main-nav a,.main-nav button.nav-link{text-align:left;padding:12px 14px;font-size:15px}
    }
    @media (max-width:640px){
      .hero{padding:56px 0 104px}
      .dash-card{padding:22px}
      .ip-actions{margin-left:0;width:100%}
      .section{padding:48px 0}
      .footer-grid{grid-template-columns:1fr}
      #map{height:340px}

      .dash-error{flex-direction:column;align-items:flex-start}
    }
    @media (prefers-reduced-motion:reduce){
      *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
    }
/* ===== SUBPAGE STYLES ===== */
.page-article{padding:56px 0 84px}
.prose{max-width:820px}
.prose .lead{font-size:19px;color:var(--muted)}
.prose h1{font-size:clamp(28px,4vw,40px);margin-bottom:.4em}
.prose h2{margin-top:1.7em;font-size:24px}
.prose h3{margin-top:1.5em;font-size:18px}
.prose ul{padding-left:22px;margin:0 0 1em}
.prose li{margin-bottom:.4em}
.prose code{background:#eef2f7;border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-family:'JetBrains Mono',monospace;font-size:.9em}
.breadcrumb{margin-bottom:26px;font-size:14px;color:var(--muted)}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0}
.breadcrumb li+li::before{content:'\203A';margin-right:8px;color:var(--line)}
.breadcrumb a{color:var(--blue-600)}
/* ===== SPEED TEST STYLES ===== */
/* Speed test */
    .st-card{background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-sm);padding:clamp(22px,4vw,44px)}
    .st-grid{display:grid;grid-template-columns:280px 1fr;gap:36px;align-items:center}
    .st-gauge-wrap{position:relative;width:260px;height:260px;margin:0 auto}
    .st-gauge{width:100%;height:100%;transform:rotate(-90deg)}
    .st-gauge circle{fill:none;stroke-width:14;stroke-linecap:round}
    .st-gauge-bg{stroke:#e7edf5}
    .st-gauge-fill{stroke:url(#stGrad);stroke-dasharray:439.82;stroke-dashoffset:439.82;transition:stroke-dashoffset .3s ease}
    .st-gauge-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;text-align:center;padding:0 24px}
    .st-gauge-value{font-size:44px;font-weight:700;color:var(--navy-900);line-height:1.05}
    .st-gauge-unit{font-size:12.5px;font-weight:600;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
    .st-gauge-phase{margin-top:10px;font-size:12.5px;font-weight:700;color:var(--blue-700);background:var(--blue-50);border-radius:999px;padding:4px 14px}
    .st-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .st-stat{background:#f8fafc;border:1px solid var(--line);border-radius:14px;padding:15px 18px}
    .st-stat .k{display:flex;align-items:center;gap:8px;font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
    .st-stat .k i{color:var(--blue-500)}
    .st-stat .v{display:inline-block;margin-top:6px;font-size:25px;font-weight:700;color:var(--navy-900)}
    .st-stat .u{font-size:13px;font-weight:600;color:var(--muted);margin-left:5px}
    .st-controls{margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;gap:16px}
    .st-status{font-size:14px;color:var(--muted)}
    .st-progress{height:8px;background:#e7edf5;border-radius:999px;overflow:hidden;margin-top:18px}
    .st-progress>span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--blue-600),var(--blue-500));border-radius:999px;transition:width .25s ease}
    .st-verdict{margin:18px 0 0;font-size:14.5px;color:var(--navy-800);background:var(--green-bg);border:1px solid #bbf7d0;border-radius:12px;padding:12px 16px}
    .st-note{font-size:13px;color:var(--muted);margin:16px 0 0;display:flex;gap:8px;align-items:flex-start}
    .st-note i{color:var(--blue-500);margin-top:3px}
    @media (max-width:820px){.st-grid{grid-template-columns:1fr}}
    @media (max-width:480px){.st-gauge-wrap{width:220px;height:220px}.st-gauge-value{font-size:34px}.st-stat .v{font-size:21px}}




/* ===== BLOG STYLES ===== */
.blog-page{background:var(--bg)}
.blog-hero{background:radial-gradient(850px 300px at 80% 0,rgba(59,130,246,.34),transparent 65%),linear-gradient(155deg,var(--navy-900),var(--navy-800));color:#fff;padding:48px 0 72px}
.blog-hero h1{color:#fff;font-size:clamp(2rem,4vw,3rem);letter-spacing:-.04em;margin:12px 0 10px}
.blog-hero .lead{max-width:700px;color:#d5e2f4;font-size:clamp(1rem,1.8vw,1.18rem);margin:0}
.blog-hero .breadcrumb{color:#b8c9df}
.blog-hero .breadcrumb a{color:#dbeafe}
.blog-listing,.blog-category-page{padding-top:58px}
.blog-posts-heading{margin-top:54px;margin-bottom:26px}
.blog-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.blog-card{display:flex;flex-direction:column;min-width:0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:22px;transition:transform .18s ease,box-shadow .18s ease}
.blog-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.blog-card-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:13px;color:var(--muted);font-size:12.5px}
.blog-category{display:inline-flex;align-items:center;border-radius:999px;background:var(--blue-50);color:var(--blue-700);font-size:11px;font-weight:700;letter-spacing:.05em;padding:4px 9px}
.blog-card h3{font-size:18px;line-height:1.35;margin:0 0 9px}
.blog-card h3 a{color:var(--navy-900)}
.blog-card h3 a:hover{color:var(--blue-700)}
.blog-card p{color:var(--muted);font-size:14px;line-height:1.6;margin:0 0 18px}
.blog-card-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted)}
.blog-card-footer a{font-weight:600;white-space:nowrap}
.blog-chip-list{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.blog-chip{display:inline-flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line);border-radius:999px;color:var(--navy-800);font-size:14px;font-weight:600;padding:9px 14px;box-shadow:var(--shadow-sm)}
.blog-chip:hover{border-color:var(--blue-500);color:var(--blue-700);text-decoration:none}
.blog-chip span{display:inline-flex;align-items:center;justify-content:center;min-width:22px;height:22px;border-radius:999px;background:var(--blue-50);color:var(--blue-700);font-size:11px}
.blog-empty{width:100%;margin:0;padding:22px 24px;border:1px dashed var(--line);border-radius:14px;background:rgba(255,255,255,.55);color:var(--muted);text-align:center}
.blog-category-page>.container>h1{font-size:clamp(2rem,4vw,2.7rem);margin:12px 0 8px}
.blog-category-page>.container>.lead{max-width:750px;color:var(--muted);margin-bottom:30px}
.blog-article-shell{padding-top:42px}
.blog-article-shell>.container{max-width:1240px}
.blog-layout{display:grid;grid-template-columns:minmax(190px,246px) minmax(0,820px);align-items:start;justify-content:center;gap:38px}
.blog-toc-column{position:sticky;top:96px;align-self:start}
.blog-article{min-width:0;background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-sm);padding:clamp(24px,4vw,52px)}
.blog-article-header{border-bottom:1px solid var(--line);padding-bottom:24px;margin-bottom:28px}
.blog-article-header .eyebrow{margin-bottom:12px}
.blog-article-header h1{font-size:clamp(2rem,4vw,3rem);letter-spacing:-.04em;margin-bottom:13px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;color:var(--muted);font-size:13px}
.article-meta>span+span,.article-meta>a+span{position:relative}
.article-meta>span+span::before,.article-meta>a+span::before{content:'•';position:absolute;left:-10px;color:var(--line)}
.blog-body{font-size:16px}
.blog-body .lead{font-size:19px;line-height:1.65;color:var(--navy-800);margin-bottom:1.4em}
.blog-body h2,.blog-article>section h2{font-size:clamp(1.35rem,2.5vw,1.65rem);margin-top:2em;padding-top:8px;scroll-margin-top:96px}
.blog-body h3{font-size:1.12rem;margin-top:1.55em;scroll-margin-top:96px}
.blog-body p,.blog-body li{color:#34465b}
.blog-body ul,.blog-body ol{padding-left:23px;margin:0 0 1.15em}
.blog-body li{margin-bottom:6px}
.blog-body a{font-weight:500}
.blog-body code,.blog-body kbd{background:#eef2f7;border:1px solid var(--line);border-radius:6px;color:var(--navy-800);padding:2px 6px;font-family:'JetBrains Mono',ui-monospace,monospace;font-size:.9em}
.blog-body blockquote{margin:1.2em 0;padding:15px 18px;border-left:4px solid var(--blue-500);background:var(--blue-50);color:#274060}
.toc{background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-sm);padding:0;overflow:hidden}
.toc details{padding:0}
.toc summary{cursor:pointer;list-style:none;padding:15px 17px;color:var(--navy-800);font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.toc summary::-webkit-details-marker{display:none}
.toc summary::after{content:'+';float:right;color:var(--blue-500);font-size:17px;line-height:1}
.toc details[open] summary::after{content:'−'}
.toc-list{list-style:none;margin:0;padding:0 12px 14px}
.toc-list li{margin:0}
.toc-list li a{display:flex;gap:8px;align-items:flex-start;border-radius:7px;color:var(--muted);font-size:13px;line-height:1.35;padding:6px 7px}
.toc-list li a:hover,.toc-list li a.is-active{background:var(--blue-50);color:var(--blue-700);text-decoration:none}
.toc-list .toc-h3{padding-left:13px}
.toc-number{color:var(--blue-600);font-variant-numeric:tabular-nums;min-width:25px}
.key-takeaways{margin:28px 0;padding:20px 22px;background:linear-gradient(135deg,var(--blue-50),#fff);border:1px solid var(--blue-100);border-radius:14px}
.key-takeaways h2{margin:0 0 10px!important;padding:0;border:0;color:var(--navy-800)}
.key-takeaways ul{margin:0;padding-left:21px}
.callout{margin:1.2em 0;padding:16px 18px;border-left:4px solid var(--blue-500);border-radius:0 12px 12px 0;background:var(--blue-50);color:#274060}
.callout p:last-child{margin-bottom:0}
.callout-tip{border-left-color:var(--green);background:var(--green-bg)}
.callout-warn{border-left-color:#d97706;background:#fffbeb}
.table-wrap{overflow-x:auto;margin:1.2em 0;border:1px solid var(--line);border-radius:12px}
.blog-body table{width:100%;min-width:560px;border-collapse:collapse;font-size:14px}
.blog-body th,.blog-body td{border-bottom:1px solid var(--line);padding:11px 13px;text-align:left;vertical-align:top}
.blog-body th{background:var(--navy-900);color:#fff;font-weight:600}
.blog-body tr:last-child td{border-bottom:0}
.article-faq,.article-sources,.article-related{margin-top:42px;padding-top:28px;border-top:1px solid var(--line)}
.article-faq h2,.article-sources h2,.article-related h2{margin-top:0!important;padding-top:0}
.article-faq-list{display:flex;flex-direction:column;gap:10px}
.article-faq-item{border:1px solid var(--line);border-radius:12px;background:var(--bg);overflow:hidden}
.article-faq-item summary{cursor:pointer;padding:15px 18px;color:var(--navy-800);font-size:15px;font-weight:600}
.article-faq-item p{margin:0;padding:0 18px 16px;color:var(--muted);font-size:14.5px}
.sources-list{margin:0;padding-left:22px}
.sources-list li{margin-bottom:8px;color:var(--muted);font-size:14px}
.blog-card-grid-related{grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}
.blog-card-grid-related .blog-card{padding:17px}
.blog-card-grid-related .blog-card h3{font-size:15px}
.blog-card-grid-related .blog-card p{font-size:13px}
.section-cta{text-align:center;margin-top:28px}
@media (max-width:1099px){
  .blog-layout{grid-template-columns:minmax(0,820px)}
  .blog-toc-column{position:static;order:0}
  .blog-toc-column .toc{max-width:820px}
}
@media (max-width:900px){
  .blog-card-grid,.blog-card-grid-related{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .blog-hero{padding:38px 0 54px}
  .blog-listing,.blog-category-page{padding-top:42px}
  .blog-card-grid,.blog-card-grid-related{grid-template-columns:1fr}
  .blog-article{padding:22px 18px}
  .article-meta{gap:7px 12px}
  .article-meta>span+span::before,.article-meta>a+span::before{display:none}
  .blog-body .lead{font-size:17px}
  .toc-list .toc-h3{padding-left:8px}
}
@media (prefers-color-scheme:dark){
  .blog-page{--blog-dark-bg:#0f172a;--blog-dark-card:#172235;--blog-dark-line:#2c3a50;--blog-dark-ink:#e5edf8;--blog-dark-muted:#a9b8cc;background:var(--blog-dark-bg);color:var(--blog-dark-ink)}
  .blog-page .blog-card,.blog-page .blog-article,.blog-page .toc,.blog-page .blog-chip{background:var(--blog-dark-card);border-color:var(--blog-dark-line)}
  .blog-page .blog-card h3 a,.blog-page .blog-chip,.blog-page .blog-article h1,.blog-page .blog-article h2,.blog-page .blog-article h3,.blog-page .article-meta,.blog-page .toc summary,.blog-page .article-faq-item summary{color:var(--blog-dark-ink)}
  .blog-page .blog-card p,.blog-page .blog-card-meta,.blog-page .blog-card-footer,.blog-page .blog-body p,.blog-page .blog-body li,.blog-page .article-meta,.blog-page .article-faq-item p,.blog-page .sources-list li,.blog-page .blog-empty{color:var(--blog-dark-muted)}
  .blog-page .blog-card-footer,.blog-page .blog-article-header,.blog-page .article-faq,.blog-page .article-sources,.blog-page .article-related,.blog-page .table-wrap,.blog-page .blog-body th,.blog-page .blog-body td{border-color:var(--blog-dark-line)}
  .blog-page .blog-empty{background:rgba(23,34,53,.7)}
  .blog-page .key-takeaways{background:#172d49;border-color:#24588d}
  .blog-page .blog-body code,.blog-page .blog-body kbd{background:#23324a;border-color:var(--blog-dark-line);color:var(--blog-dark-ink)}
  .blog-page .article-faq-item{background:#132035;border-color:var(--blog-dark-line)}
}

/* ===== SPEED TEST STAGE ===== */
.page-layout-tool{background:var(--bg)}
.tool-stage{background:radial-gradient(900px 360px at 84% -12%,rgba(59,130,246,.34),transparent 62%),linear-gradient(160deg,var(--navy-900),var(--navy-800) 58%,#12294f);color:#fff;padding:48px 0 40px;overflow:hidden}
.tool-stage-inner{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.tool-heading{text-align:center;margin:0 auto 28px;max-width:760px}
.tool-eyebrow{color:#9fc0ec;font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;margin:0 0 10px}
.tool-heading h1{color:#fff;font-size:clamp(2rem,5vw,3.2rem);letter-spacing:-.04em;margin:0 0 10px}
.tool-lead{color:#d3e1f4;font-size:clamp(1rem,1.8vw,1.15rem);margin:0}
.st-connection-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.14);border-radius:15px;overflow:hidden;margin:0 auto 18px;max-width:980px}
.st-connection-item{background:rgba(8,22,42,.55);padding:14px 18px;min-width:0}
.st-connection-label{display:block;color:#9eb2cf;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;margin-bottom:4px}
.st-connection-label i{color:#78aaf5;margin-right:5px}
.st-connection-item strong{display:block;color:#fff;font-size:14px;font-weight:600;overflow-wrap:anywhere;word-break:break-word;max-width:100%}
.st-data-notice{max-width:980px;margin:0 auto 16px;padding:10px 14px;border:1px solid rgba(251,191,36,.48);border-radius:10px;background:rgba(120,73,7,.3);color:#ffedb0;font-size:13px;display:flex;gap:8px;align-items:flex-start}
.st-data-notice i{color:#fbbf24;margin-top:3px}
.st-tool-surface{max-width:980px;margin:0 auto;background:rgba(4,15,31,.48);border:1px solid rgba(255,255,255,.16);border-radius:22px;box-shadow:0 20px 52px rgba(0,0,0,.2);overflow:hidden}
.st-state{padding:clamp(26px,5vw,54px)}
.st-idle-panel{text-align:center;min-height:390px;display:flex;flex-direction:column;align-items:center;justify-content:center}
.st-idle-panel h2{color:#fff;font-size:clamp(1.2rem,2vw,1.55rem);margin:0 0 22px}
.st-go-button{width:132px;height:132px;border-radius:50%;border:7px solid rgba(255,255,255,.22);background:linear-gradient(145deg,var(--blue-500),var(--blue-700));color:#fff;font:800 25px/1 'Inter',sans-serif;letter-spacing:.08em;cursor:pointer;box-shadow:0 0 0 10px rgba(59,130,246,.12),0 18px 34px rgba(0,0,0,.28);transition:transform .18s ease,box-shadow .18s ease}
.st-go-button:hover{transform:scale(1.04);box-shadow:0 0 0 12px rgba(59,130,246,.16),0 22px 40px rgba(0,0,0,.3)}
.st-go-button:focus-visible{outline:4px solid #fbbf24;outline-offset:5px}
.st-idle-hint{color:#c2d2e8;font-size:14px;margin:20px 0 4px}
.st-idle-message{color:#9eb2cf;font-size:13px;margin:0;min-height:22px}
.st-running-panel{padding:clamp(20px,4vw,42px)}
.st-running-layout{display:grid;grid-template-columns:minmax(300px,1fr) minmax(280px,1fr);align-items:center;gap:32px}
.st-speedometer-wrap{position:relative;width:100%;max-width:360px;margin:0 auto}
.st-speedometer-visual{position:relative;width:100%;line-height:0}
.st-speedometer{display:block;width:100%;height:auto;overflow:visible}
.st-speedometer-track,.st-speedometer-arc{fill:none;stroke-width:14;stroke-linecap:round}
.st-speedometer-track{stroke:rgba(255,255,255,.12)}
.st-speedometer-arc{stroke:url(#stGaugeGradient);stroke:#4f91ff;stroke-dasharray:100;stroke-dashoffset:100;transition:stroke-dashoffset .22s ease}
.st-speedometer-ticks line{stroke:rgba(207,224,247,.55);stroke-width:2}
.st-speedometer-ticks text{fill:#b8cbe5;font:600 11px 'JetBrains Mono',monospace}
.st-speedometer-marker{fill:#fbbf24;stroke:#fff;stroke-width:2;vector-effect:non-scaling-stroke;transition:cx .16s ease,cy .16s ease}
.st-speedometer-scale-label{color:#91a9c9;font:600 10px/1.2 'Inter',sans-serif;letter-spacing:.08em;text-align:center;text-transform:uppercase;margin-top:5px}
.st-gauge-center{position:absolute;left:50%;top:60%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;text-align:center;line-height:normal;pointer-events:none;z-index:2}
.st-gauge-value{color:#fff;font-size:clamp(2.25rem,5vw,3.45rem);font-weight:700;line-height:1.05;white-space:nowrap}
.st-gauge-unit{color:#adc2df;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin-top:4px}
.st-gauge-phase{color:#d9e8ff;background:rgba(59,130,246,.26);border:1px solid rgba(133,184,255,.28);border-radius:999px;padding:4px 12px;font-size:12px;font-weight:700;margin-top:11px}
.st-live-panel{min-width:0}
.st-live-kicker{color:#98b5dd;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin:0 0 8px}
.st-live-value{color:#fff;font-size:clamp(2.1rem,5vw,3.4rem);font-weight:700;line-height:1.08;margin:0}
.st-live-unit{color:#aac0dd;font-size:13px;margin:5px 0 22px}
.st-sparkline-wrap{border:1px solid rgba(255,255,255,.14);border-radius:14px;background:rgba(2,11,24,.34);padding:13px 14px 11px}
.st-sparkline-heading{display:flex;justify-content:space-between;gap:10px;color:#c7d7ec;font-size:12px;margin-bottom:8px}
.st-sparkline-heading .mono{color:#8fb9fa}
.st-sparkline{width:100%;height:auto;display:block;overflow:visible}
.st-sparkline-grid{fill:none;stroke:rgba(175,202,239,.13);stroke-width:1}
.st-sparkline-line{fill:none;stroke:#62a1ff;stroke-width:4;stroke-linecap:round;stroke-linejoin:round;transition:opacity .18s ease}
.st-loaded-live{color:#9eb2cf;font-size:12.5px;margin:14px 0 0;min-height:20px}
.st-running-actions{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:22px}
.st-status{color:#d4e2f3;font-size:14px;margin:0;min-height:24px}
.st-stop-button{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);color:#fff}
.st-stop-button:hover{background:rgba(255,255,255,.18);color:#fff}
.st-result-panel{background:#fff;color:var(--ink);padding:clamp(22px,4vw,42px)}
.st-result-heading,.st-history-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:22px}
.st-result-heading h2,.st-history-heading h2{font-size:clamp(1.3rem,2.5vw,1.75rem);margin:0;color:var(--navy-900)}
.st-result-kicker{color:var(--blue-600);font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;margin:0 0 5px}
.st-result-status{color:var(--muted);font-size:13.5px;text-align:right;margin:16px 0 0;max-width:300px}
.st-results-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}
.st-result-tile{min-width:0;background:#f7faff;border:1px solid var(--line);border-radius:13px;padding:15px 14px;display:flex;flex-wrap:wrap;align-items:baseline;column-gap:5px;align-content:flex-start}
.st-result-tile-wide{background:#f4f8fe}
.st-result-label{width:100%;color:var(--muted);font-size:11px;font-weight:700;letter-spacing:.055em;text-transform:uppercase;line-height:1.35;margin-bottom:10px}
.st-result-label i{color:var(--blue-600);margin-right:4px}
.st-result-value{color:var(--navy-900);font-size:clamp(1.35rem,2.8vw,2rem);line-height:1.1;overflow-wrap:anywhere}
/* Non-numeric state: an em dash in a smaller style that always fits the tile on one line; the reason sits on the detail line below. */
.st-result-value-empty{color:var(--muted);font-size:clamp(1rem,1.6vw,1.25rem);font-weight:600;line-height:1.2;overflow-wrap:normal;white-space:nowrap}
.st-result-unit{color:var(--muted);font-size:12px;font-weight:700}
.st-quality{display:block;width:max-content;margin-top:12px;border-radius:999px;padding:3px 8px;font-size:11px;font-weight:700}
.quality-good{background:var(--green-bg);color:var(--green)}
.quality-ok{background:#fef3c7;color:#92400e}
.quality-limited{background:var(--red-bg);color:var(--red)}
.quality-unavailable{background:#eef2f7;color:var(--muted)}
/* Neutral "Not measured" state — deliberately distinct from red "Limited". */
.quality-notmeasured{background:#eef2f7;color:#55657a;box-shadow:inset 0 0 0 1px #b9c6d6}
.st-result-tile small{display:block;width:100%;color:var(--muted);font-size:11px;line-height:1.45;margin-top:9px}
.st-result-data{border-top:1px solid var(--line);color:var(--navy-800);font-size:13px;margin:22px 0 0;padding-top:16px}
.st-capabilities{border-top:1px solid var(--line);margin-top:22px;padding-top:20px}
.st-capabilities h3{font-size:16px;margin:0 0 12px;color:var(--navy-900)}
.st-capability-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px}
.st-capability{border:1px solid var(--line);border-radius:11px;padding:12px;background:#fbfcfe;display:flex;flex-direction:column;gap:8px;min-width:0}
.st-capability span{color:var(--navy-800);font-size:12.5px;font-weight:600;line-height:1.3}
.st-capability strong{align-self:flex-start}
.st-threshold-note{color:var(--muted);font-size:12px;margin:13px 0 0}
.st-result-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:24px}
.st-copy-status{color:var(--green);font-size:13px;min-height:20px}
.tool-privacy-note{max-width:980px;margin:15px auto 0;color:#a9bdd8;font-size:12.5px;display:flex;align-items:flex-start;gap:8px}
.tool-privacy-note i{color:#78aaf5;margin-top:3px}
.tool-privacy-note a{color:#d6e7ff;text-decoration:underline}
.st-history{max-width:980px;margin:20px auto 0;background:rgba(4,15,31,.42);border:1px solid rgba(255,255,255,.14);border-radius:17px;padding:20px 22px;color:#fff}
.st-history-heading{margin-bottom:12px}
.st-history-heading h2{color:#fff;font-size:1.2rem}
.st-history-clear{color:#e7f0fc;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.2);padding:9px 14px;font-size:13px}
.st-history-clear:hover{color:#fff;background:rgba(255,255,255,.16)}
.st-history-clear[disabled]{color:#8ea3bf;background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.12)}
.st-history-empty{color:#a9bdd8;font-size:13px;margin:0}
.st-history-table-wrap{overflow-x:auto}
.st-history-table{width:100%;border-collapse:collapse;table-layout:fixed;font-size:12.5px}
.st-history-table th,.st-history-table td{padding:9px 8px;border-bottom:1px solid rgba(255,255,255,.12);text-align:left;overflow-wrap:anywhere}
.st-history-table th{color:#a9c3e4;font-size:10px;letter-spacing:.1em;text-transform:uppercase}
.st-history-table td{color:#edf5ff}
.st-history-table tr:last-child td{border-bottom:0}
.st-history-status{color:#9eb2cf;font-size:12px;margin:11px 0 0;min-height:18px}
@media (max-width:1040px){
  .st-results-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:820px){
  .st-running-layout{grid-template-columns:1fr;gap:18px}
  .st-speedometer-wrap{max-width:340px}
  .st-live-panel{max-width:620px;width:100%;margin:0 auto}
  .st-capability-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .tool-stage{padding:38px 0 30px}
  .tool-stage-inner{padding:0 16px}
  .st-connection-strip{grid-template-columns:1fr}
  .st-connection-item{padding:12px 15px}
  .st-tool-surface{border-radius:17px}
  .st-state{padding:22px 17px}
  .st-idle-panel{min-height:330px}
  .st-go-button{width:126px;height:126px}
  .st-result-heading{display:block}
  .st-result-status{text-align:left;margin-top:9px}
  .st-results-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .st-result-tile{padding:13px 11px}
  .st-result-tile-wide{grid-column:1/-1}
  .st-capability-grid{gap:8px}
  .st-result-actions .btn{flex:1 1 auto;justify-content:center}
  .st-history{padding:17px 14px}
  .st-history-table{font-size:11.5px}
}
@media (prefers-reduced-motion:reduce){
  .st-speedometer-arc,.st-speedometer-marker,.st-sparkline-line{transition:none}
}