:root{
  /* Dark (navy) — hero / footer / anchors */
  --dark-1000:#0a1730;
  --dark-950:#0f2040;
  --dark-900:#14294d;
  --dark-850:#1a335c;
  --dark-800:#1f3f70;

  /* Blue — primary accent */
  --blue-600:#0f75fc;
  --blue-500:#2f93ff;
  --blue-400:#5fb0ff;
  --blue-300:#96cbff;
  --blue-100:#eaf3ff;

  /* Gray — neutral canvas & typography */
  --gray-800:#333b4a;
  --gray-700:#454e60;
  --gray-600:#6c7688;
  --gray-150:#d8dce3;
  --gray-125:#e1e5eb;
  --gray-100:#ebeef2;
  --gray-50:#f4f6f8;
  --gray-25:#fafbfc;
  --white:#ffffff;

  /* Warning — Moscow. Genuine red-flag states only. */
  --warn:#c73e3e;
  --warn-tint:#fbebeb;
  --warn-line:#f0c9c9;

  --ink:var(--dark-1000);
  --ink2:var(--gray-700);
  --ink3:var(--gray-600);
  --canvas:var(--gray-25);
  --canvas2:var(--gray-50);
  --line:var(--gray-125);
  --radius:14px;
  --shadow:0 10px 26px -16px rgba(10,23,48,.16);
  --maxw:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--canvas);color:var(--ink);font-family:'Inter',system-ui,-apple-system,Segoe UI,sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:'Poppins',Inter,sans-serif;color:var(--ink);line-height:1.2;margin:0 0 .5em}
h1{font-size:clamp(1.7rem,3.4vw,2.35rem);font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(1.25rem,2.2vw,1.55rem);font-weight:600}
h3{font-size:1.05rem;font-weight:600}
p{margin:0 0 1em;color:var(--ink2)}
a{color:var(--blue-600);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
img{max-width:100%;display:block}
.eyebrow{display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--blue-600)}
.lede{font-size:1.05rem;max-width:62ch}

/* ---------- Header ---------- */
.nav{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:14px;height:56px}
.brand{display:flex;align-items:center;gap:8px;font-family:'Poppins',sans-serif;font-weight:600;font-size:.95rem;color:var(--ink);white-space:nowrap}
.brand .mark{width:26px;height:26px;border-radius:7px;background:var(--dark-1000);display:flex;align-items:center;justify-content:center;flex:none}
.brand .mark .ti{width:15px;height:15px;color:var(--blue-400)}
.nav-sep{color:var(--gray-150);font-weight:300}
.navlinks{display:flex;align-items:center;gap:18px;font-size:.86rem;overflow-x:auto;scrollbar-width:none}
.navlinks::-webkit-scrollbar{display:none}
.navlinks a{color:var(--ink2);white-space:nowrap}
.navlinks a:hover{color:var(--blue-600);text-decoration:none}
.navlinks .dot{color:var(--gray-150)}
.navtoggle{display:none;margin-left:auto;background:none;border:0;font-size:1.3rem;color:var(--ink);cursor:pointer}
@media (max-width:720px){
  .navlinks{position:absolute;top:56px;left:0;right:0;background:var(--white);border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start;padding:10px 24px 16px;gap:12px;display:none}
  .navlinks.open{display:flex}
  .navlinks .dot{display:none}
  .navtoggle{display:block}
  .nav-sep{display:none}
}

/* ---------- Dark hero ---------- */
.hero-dark{background:linear-gradient(180deg,var(--dark-1000),var(--dark-950));color:var(--white);padding:52px 0 44px}
.hero-dark h1{color:var(--white)}
.hero-dark .lede{color:var(--blue-300);font-size:1.05rem}
.hero-dark .eyebrow{color:var(--blue-400)}
.answer-box{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:18px 20px;margin-top:16px;max-width:74ch}
.answer-box p{color:#dbe6f7;margin:0}
.answer-box strong{color:var(--white)}

section{padding:52px 0}
.section-head{margin-bottom:26px;max-width:70ch}
.section-head .eyebrow{margin-bottom:8px}

/* ---------- Timeline ---------- */
.timeline{display:flex;gap:0;overflow-x:auto;padding:6px 2px 10px;scrollbar-width:thin}
.tl-node{flex:1 0 150px;position:relative;padding:20px 16px 4px;border-top:3px solid var(--blue-600)}
.tl-node:first-child{border-top-color:var(--blue-600)}
.tl-node::before{content:'';position:absolute;top:-6px;left:16px;width:9px;height:9px;border-radius:50%;background:var(--blue-600)}
.tl-year{font-family:'Poppins',sans-serif;font-weight:700;color:var(--dark-1000);font-size:1.05rem}
.tl-label{font-size:.85rem;color:var(--ink2);margin-top:4px}

/* ---------- Data composition (asymmetric) ---------- */
.data-comp{display:grid;grid-template-columns:1.1fr 1.4fr;gap:28px;align-items:start}
.domain-check{grid-template-columns:1fr 1fr;align-items:center}
@media (max-width:820px){.data-comp{grid-template-columns:1fr}}
.stat-cluster{display:flex;flex-direction:column;gap:18px}
.stat-big{border-left:3px solid var(--blue-600);padding-left:14px}
.stat-big .num{font-family:'Poppins',sans-serif;font-weight:700;font-size:2rem;color:var(--dark-1000);letter-spacing:-.01em}
.stat-big .lbl{font-size:.86rem;color:var(--ink2)}
.fact-table{width:100%;border-collapse:collapse;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.fact-table td{padding:11px 16px;font-size:.88rem;border-bottom:1px solid var(--line)}
.fact-table tr:last-child td{border-bottom:none}
.fact-table td:first-child{color:var(--ink2);width:46%}
.fact-table td:last-child{color:var(--ink);font-weight:600}
.table-wrap{overflow-x:auto;border-radius:var(--radius)}

/* ---------- Infrastructure flow ---------- */
.flow-infra{display:flex;align-items:center;gap:0;overflow-x:auto;padding:8px 2px 14px}
.flow-node{flex:1 0 130px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;padding:0 6px}
.flow-node .ic{width:44px;height:44px;border-radius:12px;background:var(--blue-100);display:flex;align-items:center;justify-content:center}
.flow-node .ic .ti{width:22px;height:22px;color:var(--blue-600)}
.flow-node .flbl{font-size:.82rem;font-weight:600;color:var(--ink)}
.flow-node .fsub{font-size:.74rem;color:var(--ink3)}
.flow-arrow{flex:0 0 30px;height:2px;background:var(--gray-150);position:relative;top:-22px}
.flow-arrow::after{content:'';position:absolute;right:0;top:-3px;border:4px solid transparent;border-left-color:var(--gray-150)}
@media (max-width:720px){.flow-infra{flex-direction:column;align-items:stretch}.flow-node{flex-direction:row;text-align:left}.flow-arrow{display:none}}

/* ---------- State pills ---------- */
.state{display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:700;letter-spacing:.02em;text-transform:uppercase;padding:4px 10px;border-radius:999px}
.state .ti{width:12px;height:12px}
.state-normal{background:var(--blue-100);color:var(--blue-600)}
.state-check{background:var(--gray-100);color:var(--gray-700)}
.state-flag{background:var(--warn-tint);color:var(--warn)}

/* ---------- Diagnostic matrix ---------- */
.diag-list{display:flex;flex-direction:column;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.diag-row{background:var(--white);display:grid;grid-template-columns:1.1fr 1.1fr 1.3fr;gap:18px;padding:16px 20px;align-items:start}
@media (max-width:780px){.diag-row{grid-template-columns:1fr}}
.diag-col .k{font-size:.68rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--ink3);margin-bottom:4px}
.diag-col p{font-size:.88rem;margin:0;color:var(--ink2)}
.diag-col.what p{color:var(--ink);font-weight:600}

/* ---------- Decision tree ---------- */
.dtree{display:flex;flex-direction:column;align-items:center;gap:0;margin:8px 0 6px}
.dt-start{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:14px 22px;font-weight:600;text-align:center;box-shadow:var(--shadow)}
.dt-trunk{width:2px;height:26px;background:var(--gray-150)}
.dt-branches{display:flex;gap:14px;width:100%;justify-content:center;flex-wrap:wrap}
.dt-branch{flex:1 1 220px;max-width:280px;display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center}
.dt-branch::before{content:'';width:2px;height:18px;background:var(--gray-150)}
.dt-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;width:100%}
.dt-card p{font-size:.82rem;margin:8px 0 0;color:var(--ink2)}
.dt-branch.flag .dt-card{border-color:var(--warn-line);background:var(--warn-tint)}

/* ---------- Ecosystem hub & spoke ---------- */
.eco-map{display:flex;flex-direction:column;align-items:center}
.eco-hub{background:var(--dark-1000);color:var(--white);border-radius:var(--radius);padding:16px 26px;font-family:'Poppins',sans-serif;font-weight:600;display:flex;align-items:center;gap:10px}
.eco-hub .ti{width:18px;height:18px;color:var(--blue-400)}
.eco-trunk{width:2px;height:24px;background:var(--gray-150)}
.eco-line{width:100%;max-width:760px;height:2px;background:var(--gray-150)}
.eco-spokes{display:flex;flex-wrap:wrap;justify-content:center;gap:22px 14px;margin-top:0;padding-top:0}
.eco-spoke{display:flex;flex-direction:column;align-items:center;gap:8px;width:130px}
.eco-spoke::before{content:'';width:2px;height:18px;background:var(--gray-150)}
.eco-chip{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:10px 12px;width:100%;text-align:center;font-size:.78rem;font-weight:600;color:var(--ink)}
.eco-chip .ti{width:16px;height:16px;color:var(--blue-600);margin:0 auto 6px}
.eco-chip .sub{display:block;font-size:.68rem;font-weight:400;color:var(--ink3);margin-top:2px}

/* ---------- Split block ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media (max-width:720px){.split{grid-template-columns:1fr}}
.split-col{border-radius:var(--radius);padding:20px 22px}
.split-col.support{background:var(--blue-100);border:1px solid var(--blue-300)}
.split-col.check{background:var(--gray-50);border:1px solid var(--line)}
.split-col h3{display:flex;align-items:center;gap:8px;font-size:.95rem}
.split-col h3 .ti{width:17px;height:17px}
.split-col.support h3 .ti{color:var(--blue-600)}
.split-col.check h3 .ti{color:var(--gray-700)}
.split-col ul{margin:0;padding-left:18px;font-size:.87rem;color:var(--ink2)}
.split-col li{margin-bottom:6px}

/* ---------- Comparison scale (Expected / Check / Red Flag) ---------- */
.scale{display:flex;flex-direction:column;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.scale-band{display:flex;gap:16px;align-items:flex-start;padding:18px 22px;border-left:5px solid transparent}
.scale-band + .scale-band{border-top:1px solid var(--line)}
.scale-band.expected{background:var(--blue-100);border-left-color:var(--blue-600)}
.scale-band.check{background:var(--gray-50);border-left-color:var(--gray-600)}
.scale-band.flag{background:var(--warn-tint);border-left-color:var(--warn)}
.scale-band .sic{width:34px;height:34px;border-radius:9px;background:var(--white);display:flex;align-items:center;justify-content:center;flex:none}
.scale-band .sic .ti{width:17px;height:17px}
.scale-band.expected .sic .ti{color:var(--blue-600)}
.scale-band.check .sic .ti{color:var(--gray-700)}
.scale-band.flag .sic .ti{color:var(--warn)}
.scale-band .stitle{font-weight:700;font-size:.9rem;margin-bottom:4px}
.scale-band .sitems{font-size:.85rem;color:var(--ink2)}

/* ---------- Browser / domain mockup ---------- */
.browser-mock{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);max-width:640px}
.browser-bar{background:var(--dark-950);padding:11px 14px;display:flex;align-items:center;gap:10px}
.browser-dots{display:flex;gap:6px}
.browser-dots span{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.25)}
.browser-url{flex:1;background:rgba(255,255,255,.08);border-radius:7px;padding:7px 12px;display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--white)}
.browser-url .ti{width:14px;height:14px;color:var(--blue-400);flex:none}
.browser-url b{font-weight:600}
.browser-body{padding:22px 24px}
.browser-body p{margin:0;font-size:.88rem}

/* ---------- Inline check points ---------- */
.check-points{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.check-points li{display:flex;gap:10px;align-items:flex-start;font-size:.89rem;color:var(--ink2)}
.check-points .ti{width:16px;height:16px;color:var(--blue-600);flex:none;margin-top:2px}
.check-points b{color:var(--ink)}

/* ---------- Verification checklist ---------- */
.vcheck{display:flex;flex-direction:column;gap:2px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.vcheck-item{display:flex;align-items:center;gap:12px;padding:13px 18px;font-size:.89rem}
.vcheck-item + .vcheck-item{border-top:1px solid var(--line)}
.vcheck-item .ti{width:17px;height:17px;color:var(--blue-600);flex:none}

/* ---------- Article-style small cards for evidence footprint ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{display:inline-flex;align-items:center;gap:7px;background:var(--white);border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:.82rem;font-weight:600;color:var(--ink)}
.chip .ti{width:14px;height:14px;color:var(--blue-600)}

/* ---------- Scenario rows (Scam Concerns) ---------- */
.scenario-list{display:flex;flex-direction:column;gap:14px}
.scenario-row{background:var(--white);border:1px solid var(--line);border-left:4px solid var(--gray-600);border-radius:var(--radius);padding:18px 22px;display:grid;grid-template-columns:220px 1fr;gap:20px;align-items:start}
.scenario-row.flag{border-left-color:var(--warn)}
@media (max-width:720px){.scenario-row{grid-template-columns:1fr;gap:10px}}
.scenario-head{display:flex;flex-direction:column;gap:8px}
.scenario-head .sic{width:36px;height:36px;border-radius:10px;background:var(--blue-100);display:flex;align-items:center;justify-content:center}
.scenario-head .sic .ti{width:18px;height:18px;color:var(--blue-600)}
.scenario-row.flag .scenario-head .sic{background:var(--warn-tint)}
.scenario-row.flag .scenario-head .sic .ti{color:var(--warn)}
.scenario-head h3{margin:0;font-size:.98rem}
.scenario-body p{margin:0 0 8px;font-size:.89rem;color:var(--ink2)}
.next-check{display:flex;gap:8px;font-size:.85rem;background:var(--gray-50);border-radius:9px;padding:9px 12px;align-items:flex-start}
.next-check .ti{width:15px;height:15px;color:var(--blue-600);flex:none;margin-top:2px}
.next-check b{color:var(--ink)}

/* ---------- FAQ ---------- */
.qa{display:flex;flex-direction:column;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.qa-item{background:var(--white)}
.qa-item summary{list-style:none;cursor:pointer;padding:16px 20px;display:flex;justify-content:space-between;align-items:center;gap:14px;font-weight:600;font-size:.92rem;color:var(--ink)}
.qa-item summary::-webkit-details-marker{display:none}
.qa-item summary .ti{width:15px;height:15px;color:var(--ink3);flex:none;transition:transform .15s}
.qa-item[open] summary .ti{transform:rotate(180deg)}
.qa-item .qa-a{padding:0 20px 18px;font-size:.89rem;color:var(--ink2);max-width:70ch}
.qa-item .qa-a a{font-weight:600}

/* ---------- CTA ---------- */
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:7px;background:var(--blue-600);color:var(--white);padding:11px 20px;border-radius:9px;font-weight:600;font-size:.88rem;border:1px solid var(--blue-600)}
.btn:hover{background:var(--blue-500);text-decoration:none}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--blue-600);color:var(--blue-600)}
.btn.on-dark{background:var(--blue-600)}
.btn.ghost.on-dark{color:var(--white);border-color:rgba(255,255,255,.25)}
.btn.ghost.on-dark:hover{border-color:var(--white)}
.btn .ti{width:14px;height:14px}

/* ---------- Note / disclosure ---------- */
.note{font-size:.78rem;color:var(--ink3);max-width:70ch}

/* ---------- Footer ---------- */
footer{background:var(--dark-1000);color:var(--gray-150);padding:34px 0}
footer .wrap{display:flex;flex-direction:column;gap:10px}
footer a{color:var(--blue-300)}
.fnote{font-size:.78rem;color:#8fa2c2;max-width:80ch}

@media (max-width:600px){
  .wrap{padding:0 18px}
  section{padding:38px 0}
  .diag-row{padding:14px 16px}
}