/* traffic_shift — тёмная инфографик-тема */
:root{
  --bg:#0b0e14; --bg2:#0f131a; --panel:#151b24; --panel2:#1b222d;
  --border:#232b37; --border2:#2f3947;
  --text:#e8eef6; --muted:#9aa7b6; --dim:#6b7787;
  --wb:#b083f5; --oz:#4a9eff; --ym:#f5b93b;
  --pos:#40c463; --neg:#f6564b; --accent:#58a6ff; --accent2:#7ee0c8;
  --radius:14px; --radius-sm:9px;
  --shadow:0 8px 30px rgba(0,0,0,.35);
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--sans);color:var(--text);
  background:radial-gradient(1200px 700px at 78% -8%,rgba(74,158,255,.10),transparent 55%),
             radial-gradient(1000px 600px at 5% 8%,rgba(176,131,245,.09),transparent 50%),
             var(--bg);
  line-height:1.55;-webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1180px;margin:0 auto;padding:0 22px}
.mono{font-family:var(--mono)}

/* header */
header.site{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);
  background:rgba(11,14,20,.72);border-bottom:1px solid var(--border)}
header.site .row{display:flex;align-items:center;gap:16px;height:60px}
header.site .brand{font-weight:700;letter-spacing:.2px;font-size:15px;display:flex;align-items:center;gap:10px}
header.site .brand .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}
header.site nav{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border-radius:99px;
  border:1px solid var(--border2);background:var(--panel);color:var(--text);font-size:13px;
  font-weight:500;cursor:pointer;transition:.15s}
.btn:hover{border-color:var(--accent);text-decoration:none;background:var(--panel2)}
.btn.primary{background:linear-gradient(180deg,#2b6fff,#1b5cf0);border-color:#2b6fff;color:#fff}
.btn.ghost{background:transparent}
.btn.back{font-weight:600}

/* hero */
.hero{padding:54px 0 26px}
.eyebrow{font-size:12.5px;letter-spacing:2px;text-transform:uppercase;color:var(--accent2);font-weight:600}
.hero h1{font-size:clamp(28px,4.4vw,46px);line-height:1.08;margin:14px 0 12px;font-weight:800;letter-spacing:-.5px}
.hero h1 .hl{background:linear-gradient(90deg,var(--oz),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:17px;color:var(--muted);max-width:760px;margin:0}
.hero .meta{margin-top:18px;display:flex;gap:10px;flex-wrap:wrap;font-size:12.5px;color:var(--dim)}
.hero .meta span{background:var(--panel);border:1px solid var(--border);padding:5px 11px;border-radius:8px}

/* KPI chips */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:26px 0}
.kpi{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--border);
  border-radius:var(--radius);padding:16px 16px 14px;position:relative;overflow:hidden}
.kpi::before{content:"";position:absolute;inset:0 auto 0 0;width:3px;background:var(--k,var(--accent))}
.kpi .lab{font-size:12px;color:var(--muted);margin-bottom:6px}
.kpi .val{font-family:var(--mono);font-size:26px;font-weight:700;line-height:1}
.kpi .sub{font-size:11.5px;color:var(--dim);margin-top:6px}
.val.pos{color:var(--pos)} .val.neg{color:var(--neg)}

/* section */
section{padding:30px 0}
.h-sec{font-size:13px;letter-spacing:1.5px;text-transform:uppercase;color:var(--dim);font-weight:700;margin:0 0 4px}
h2.title{font-size:24px;font-weight:750;margin:2px 0 6px;letter-spacing:-.3px}
.sec-desc{color:var(--muted);max-width:820px;margin:0 0 20px}

/* block cards */
.blocks{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px}
.block-card{display:block;background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--border);
  border-radius:var(--radius);padding:20px;transition:.18s;position:relative}
.block-card:hover{border-color:var(--accent);transform:translateY(-2px);text-decoration:none;box-shadow:var(--shadow)}
.block-card.disabled{opacity:.62;cursor:default}
.block-card.disabled:hover{transform:none;border-color:var(--border);box-shadow:none}
.block-card .num{font-family:var(--mono);font-size:12px;color:var(--dim)}
.block-card h3{margin:6px 0 8px;font-size:18px;font-weight:700;color:var(--text)}
.block-card p{margin:0;color:var(--muted);font-size:13.5px}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:650;padding:4px 10px;border-radius:99px;margin-bottom:2px}
.badge::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.badge.done{color:var(--pos);background:rgba(64,196,99,.12)}
.badge.wip{color:var(--ym);background:rgba(245,185,59,.12)}
.badge.plan{color:var(--dim);background:rgba(107,119,135,.14)}
.block-card .go{position:absolute;right:18px;top:18px;color:var(--dim);font-size:18px}

/* panel / chart */
.panel{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--border);
  border-radius:var(--radius);padding:20px;margin:16px 0}
.controls{display:flex;gap:18px;flex-wrap:wrap;align-items:center;margin-bottom:8px}
.seg{display:inline-flex;background:var(--bg2);border:1px solid var(--border2);border-radius:10px;padding:3px;gap:3px}
.seg button{border:0;background:transparent;color:var(--muted);font-family:var(--sans);font-size:13px;
  font-weight:600;padding:7px 14px;border-radius:8px;cursor:pointer;transition:.13s}
.seg button.active{background:var(--panel2);color:var(--text);box-shadow:0 1px 0 rgba(255,255,255,.04)}
.seg.metric button.active{color:#fff;background:linear-gradient(180deg,#2b6fff,#1b5cf0)}
.ctl-label{font-size:11.5px;color:var(--dim);text-transform:uppercase;letter-spacing:1px;margin-right:-8px}
.chart{width:100%;height:460px}
.legend-note{font-size:12px;color:var(--dim);margin-top:6px}

/* collapsible table */
.collapse{margin-top:14px;border-top:1px solid var(--border);padding-top:12px}
.collapse>summary{cursor:pointer;font-size:13.5px;font-weight:600;color:var(--accent2);list-style:none;display:flex;align-items:center;gap:8px}
.collapse>summary::-webkit-details-marker{display:none}
.collapse>summary::before{content:"▸";transition:.15s;display:inline-block;color:var(--dim)}
.collapse[open]>summary::before{transform:rotate(90deg)}
.tbl-wrap{overflow:auto;max-height:460px;margin-top:12px;border:1px solid var(--border);border-radius:10px}
table.data{border-collapse:collapse;width:100%;font-size:12.5px;font-family:var(--mono)}
table.data th,table.data td{padding:7px 12px;text-align:right;white-space:nowrap;border-bottom:1px solid var(--border)}
table.data th{position:sticky;top:0;background:var(--panel2);color:var(--muted);font-weight:600;text-align:right;z-index:1}
table.data td:first-child,table.data th:first-child{text-align:left;position:sticky;left:0;background:var(--panel2)}
table.data td:first-child{background:var(--bg2);color:var(--muted)}
table.data tr.attack td{background:rgba(246,86,75,.10)}
table.data tr.attack td:first-child{color:var(--neg);font-weight:700}
.c-wb{color:var(--wb)} .c-oz{color:var(--oz)} .c-ym{color:var(--ym)}

/* insights */
.insights{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px;margin-top:8px}
.insight{background:var(--panel);border:1px solid var(--border);border-left:3px solid var(--k,var(--accent));
  border-radius:var(--radius-sm);padding:15px 17px}
.insight h4{margin:0 0 6px;font-size:14.5px}
.insight p{margin:0;font-size:13.5px;color:var(--muted)}
.tag{display:inline-block;font-size:10.5px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;
  padding:2px 7px;border-radius:5px;margin-left:6px;vertical-align:middle}
.tag.fact{background:rgba(64,196,99,.15);color:var(--pos)}
.tag.est{background:rgba(245,185,59,.15);color:var(--ym)}

/* method accordion */
.method{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:10px;overflow:hidden}
.method>summary{cursor:pointer;padding:15px 18px;font-weight:650;font-size:14.5px;list-style:none;display:flex;align-items:center;gap:10px}
.method>summary::-webkit-details-marker{display:none}
.method>summary::before{content:"+";color:var(--accent);font-family:var(--mono);font-size:17px;width:16px}
.method[open]>summary::before{content:"–"}
.method .body{padding:0 18px 16px 44px;color:var(--muted);font-size:13.5px}
.method .body b{color:var(--text);font-weight:600}
.method .body .kv{display:grid;grid-template-columns:150px 1fr;gap:4px 14px;margin-top:8px}
.method .body .kv div:nth-child(odd){color:var(--dim)}
.auto-badge{font-size:11px;font-weight:650;padding:3px 9px;border-radius:6px;margin-left:auto}
.auto-badge.no{background:rgba(107,119,135,.16);color:var(--dim)}
.auto-badge.yes{background:rgba(64,196,99,.14);color:var(--pos)}

footer.site{border-top:1px solid var(--border);margin-top:40px;padding:26px 0;color:var(--dim);font-size:12.5px}
footer.site .row{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.disclaimer{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:14px 16px;font-size:12.5px;color:var(--muted);margin-top:16px}
hr.sep{border:0;border-top:1px solid var(--border);margin:34px 0}
@media(max-width:620px){.chart{height:380px}.hero{padding:36px 0 18px}}