/* ============ TOKENS ============ */
@import url('/assets/css/fonts.css');
:root{
  --accent:#3b82f6; --accent-hover:#2563eb; --accent-deep:#2563eb; --accent-soft:#dbeafe;
  --bg:#ffffff; --surface:#f8fafc; --surface-2:#f1f5f9; --paper:#ffffff;
  --text:#0f172a; --ink-soft:#334155; --muted:#64748b; --border:#e2e8f0; --line-soft:#f1f5f9;
  --dl:#3b82f6; --ul:#10b981; --ping:#8b5cf6; --jit:#f59e0b; --green:#10b981;
  --shadow:0 1px 3px rgba(15,23,42,.06),0 8px 24px rgba(15,23,42,.05);
  --mono:'JetBrains Mono',ui-monospace,'SF Mono',Menlo,Consolas,monospace;
  --sans:'Geist',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --serif:'Fraunces','Georgia',ui-serif,serif;
}
html[data-theme="dark"]{
  --accent:#60a5fa; --accent-hover:#3b82f6; --accent-deep:#3b82f6; --accent-soft:#1e3a5f;
  --bg:#0f172a; --surface:#1e293b; --surface-2:#243044; --paper:#1e293b;
  --text:#e2e8f0; --ink-soft:#cbd5e1; --muted:#94a3b8; --border:#334155; --line-soft:#243044;
  --shadow:0 1px 3px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.25);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bg);color:var(--text);line-height:1.6;
  font-size:16px;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}
a{color:inherit;text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}

/* ============ NAV ============ */
header.nav{position:sticky;top:0;z-index:50;
  background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:600;font-size:1.35rem;letter-spacing:-.02em}
.brand .dot{width:30px;height:30px;border-radius:8px;background:var(--accent);
  display:grid;place-items:center;color:#fff;flex-shrink:0}
.brand .dot svg{width:17px;height:17px}
.brand .tld{color:var(--muted);font-family:var(--mono);font-weight:500;font-size:.8rem}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{color:var(--muted);font-size:.9rem;font-weight:500;transition:color .15s}
.nav-links a:hover{color:var(--text)}
.nav-actions{display:flex;align-items:center;gap:14px}
.theme-btn,.menu-btn{width:38px;height:38px;border:1px solid var(--border);background:var(--surface);
  border-radius:10px;cursor:pointer;display:grid;place-items:center;color:var(--text);
  transition:background .15s,border-color .15s}
.theme-btn:hover,.menu-btn:hover{border-color:var(--accent)}
.theme-btn svg{width:18px;height:18px}
.menu-btn{display:none}

/* ============ HERO / TEST ============ */
.hero{padding:64px 0 40px;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:.74rem;
  text-transform:uppercase;letter-spacing:.12em;color:var(--accent);background:var(--accent-soft);
  padding:6px 14px;border-radius:999px;margin-bottom:22px;font-weight:600}
.eyebrow .live{width:7px;height:7px;border-radius:50%;background:var(--accent);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--accent) 60%,transparent)}
  70%{box-shadow:0 0 0 9px transparent}100%{box-shadow:0 0 0 0 transparent}}
h1{font-family:var(--serif);font-size:clamp(2.4rem,5.5vw,4rem);font-weight:400;letter-spacing:-.035em;line-height:1.05;margin-bottom:18px}
h1 em{font-style:italic;color:var(--accent)}
.sub{max-width:600px;margin:0 auto 32px;color:var(--ink-soft);font-size:1.13rem;line-height:1.55}
.start{border:none;cursor:pointer;font-family:var(--sans);font-weight:600;font-size:1.06rem;color:#fff;
  background:var(--accent);padding:18px 52px;border-radius:14px;
  box-shadow:0 6px 20px color-mix(in srgb,var(--accent) 40%,transparent);
  transition:transform .15s,background .15s}
.start:hover{background:var(--accent-hover);transform:translateY(-2px)}
.start:active{transform:translateY(0)}
.start:disabled{opacity:.55;cursor:default;transform:none}

/* units toggle */
.units{display:inline-flex;gap:2px;background:var(--surface-2);border:1px solid var(--border);
  border-radius:10px;padding:3px;margin:24px auto 0}
.units button{border:none;background:transparent;color:var(--muted);font-family:var(--mono);
  font-size:.78rem;font-weight:600;padding:6px 14px;border-radius:7px;cursor:pointer}
.units button.on{background:var(--bg);color:var(--text);box-shadow:var(--shadow)}

/* ============ RESULTS GRID ============ */
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:24px 0 18px}
.tile{background:var(--surface);border:1px solid var(--border);border-radius:16px;
  padding:22px 20px;text-align:left;box-shadow:var(--shadow);transition:border-color .2s}
.tile .label{display:flex;align-items:center;gap:8px;font-size:.78rem;text-transform:uppercase;
  letter-spacing:.08em;color:var(--muted);font-weight:600;margin-bottom:10px}
.tile .ic{width:9px;height:9px;border-radius:3px}
.tile.dl .ic{background:var(--dl)} .tile.ul .ic{background:var(--ul)}
.tile.ping .ic{background:var(--ping)} .tile.jit .ic{background:var(--jit)}
.tile .val{font-family:var(--mono);font-size:2.3rem;font-weight:600;line-height:1;letter-spacing:-.02em}
.tile .unit{font-family:var(--mono);font-size:.85rem;color:var(--muted);margin-left:4px;font-weight:500}
.tile .bartrack{height:6px;background:var(--surface-2);border-radius:99px;margin-top:16px;overflow:hidden}
.tile .barfill{height:100%;width:0%;border-radius:99px;transition:width .25s ease-out}
.tile.dl .barfill{background:var(--dl)} .tile.ul .barfill{background:var(--ul)}
.tile.ping .barfill{background:var(--ping)} .tile.jit .barfill{background:var(--jit)}
.tile.active{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent),var(--shadow)}

.rating{font-size:1rem;color:var(--text);font-weight:600;margin:6px 0 4px;min-height:1.2em;
  opacity:0;transition:opacity .4s}
.rating.show{opacity:1}
.conn{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 26px;font-family:var(--mono);
  font-size:.82rem;color:var(--muted);margin:14px 0 10px}
.conn b{color:var(--text);font-weight:600}
.conn #stamp{opacity:0;transition:opacity .4s}
.conn.show #stamp{opacity:1}
.actions{display:flex;justify-content:center;gap:12px;margin-top:6px;opacity:0;transition:opacity .4s}
.actions.show{opacity:1}
.btn-ghost{border:1px solid var(--border);background:var(--surface);color:var(--text);
  font-family:var(--sans);font-weight:600;font-size:.92rem;padding:11px 22px;border-radius:11px;
  cursor:pointer;transition:border-color .15s}
.btn-ghost:hover{border-color:var(--accent)}

/* ============ SECTIONS ============ */
section.block{padding:56px 0;border-top:1px solid var(--border)}
.kicker{font-family:var(--mono);font-size:.74rem;text-transform:uppercase;letter-spacing:.12em;
  color:var(--accent);font-weight:600;margin-bottom:10px}
h2{font-family:var(--serif);font-size:clamp(1.6rem,3vw,2.3rem);font-weight:400;letter-spacing:-.025em;margin-bottom:14px}
h2 em{font-style:italic;color:var(--accent)}
.lead{color:var(--muted);max-width:620px;margin-bottom:34px}
.metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.mcard{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px}
.mcard h3{display:flex;align-items:center;gap:10px;font-size:1.05rem;margin-bottom:8px}
.mcard .chip{width:11px;height:11px;border-radius:4px}
.mcard p{color:var(--muted);font-size:.94rem}
.faq dl{border-top:1px solid var(--border)}
.faq dt{font-weight:700;padding:18px 0 6px;cursor:pointer;display:flex;justify-content:space-between;gap:16px}
.faq dt::after{content:"+";color:var(--accent);font-weight:400;font-size:1.4rem;line-height:1}
.faq dt.open::after{content:"–"}
.faq dd{color:var(--muted);font-size:.94rem;padding:0 0 18px;display:none}
.faq dd.open{display:block}

/* ============ FOOTER ============ */
footer.ft{border-top:1px solid var(--border);background:var(--surface);padding:48px 0 28px}
.ft-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.ft-brand .brand{margin-bottom:12px}
.ft-brand p{color:var(--muted);font-size:.9rem;max-width:300px}
.ft-col h4{font-size:.76rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-bottom:14px;font-weight:700}
.ft-col a{display:block;color:var(--muted);font-size:.92rem;padding:5px 0;transition:color .15s}
.ft-col a:hover{color:var(--accent)}
.ft-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  margin-top:36px;padding-top:22px;border-top:1px solid var(--border);
  color:var(--muted);font-size:.84rem;font-family:var(--mono)}

/* ============ RESPONSIVE ============ */
@media(max-width:780px){
  .nav-links{position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;
    background:var(--bg);border-bottom:1px solid var(--border);padding:8px 24px;display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 0;width:100%;border-bottom:1px solid var(--border)}
  .menu-btn{display:grid}
  .tiles{grid-template-columns:repeat(2,1fr)}
  .metrics{grid-template-columns:1fr}
  .ft-grid{grid-template-columns:1fr 1fr;gap:28px}
  .ft-brand{grid-column:1/-1}
}
@media(max-width:440px){.tiles{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.demo-note{text-align:center;font-family:var(--mono);font-size:.74rem;color:var(--muted);margin-top:18px}

/* ============ PROSE (about/privacy/terms/contact) ============ */
.prose p{color:var(--muted);margin-bottom:16px;font-size:1.02rem}
.prose h3{font-size:1.15rem;font-weight:700;color:var(--text);margin:30px 0 10px;letter-spacing:-.01em}
.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
.prose a:hover{color:var(--accent-hover)}

/* ============ ADSTERRA BANNER ============ */
/* Sits directly below the sticky nav, above breadcrumbs/content.
   Desktop slot 728x90, mobile slot 320x50 — only the matching one shows. */
.ad-banner{display:flex;justify-content:center;align-items:center;
  padding:12px 16px;border-bottom:1px solid var(--border);background:var(--surface)}
.ad-banner-inner{margin:0 auto}
.ad-banner-inner.desktop{min-width:728px;min-height:90px}
.ad-banner-inner.mobile{display:none;min-width:320px;min-height:50px}
@media(max-width:760px){
  .ad-banner{padding:8px 12px}
  .ad-banner-inner.desktop{display:none}
  .ad-banner-inner.mobile{display:block}
}