:root{
  --court:#0F4C81;
  --court-deep:#0A3559;
  --apron:#2E7CB8;
  --paper:#EAEEF1;
  --paper-2:#F6F8F9;
  --line:#FFFFFF;
  --ball:#D7E23C;
  --ink:#0B1B26;
  --graphite:#677A88;
  --hair:#C9D3DA;

  --display:"Oswald",-apple-system,BlinkMacSystemFont,sans-serif;
  --body:"Golos Text",-apple-system,BlinkMacSystemFont,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  display:flex;
  flex-direction:column;
  min-height:100vh;
}
main{flex:1}
h1,h2,h3,h4{font-family:var(--display);font-weight:600;line-height:1.04;margin:0;text-transform:uppercase;letter-spacing:.01em}
p{margin:0}
a{color:inherit}
img,svg{max-width:100%}

.wrap{max-width:1080px;margin:0 auto;padding:0 24px}

.eyebrow{
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--graphite);
}
:focus-visible{outline:3px solid var(--ball);outline-offset:3px;border-radius:2px}

/* ---------- NAV ---------- */
.nav{background:var(--court-deep);color:var(--line);position:sticky;top:0;z-index:50}
.nav__in{display:flex;align-items:center;gap:28px;height:58px}
.nav__logo{
  font-family:var(--display);text-transform:uppercase;font-weight:600;font-size:15px;
  letter-spacing:.1em;text-decoration:none;white-space:nowrap;
}
.nav__logo span{color:var(--ball)}
.nav__links{display:flex;gap:20px;flex-wrap:wrap;margin-left:auto}
.nav__links a{
  font-family:var(--mono);font-size:12px;text-decoration:none;
  color:rgba(255,255,255,.68);padding:4px 0;border-bottom:2px solid transparent;
  transition:color .15s,border-color .15s;
}
.nav__links a:hover{color:var(--line)}
.nav__links a[aria-current=page]{color:var(--ball);border-bottom-color:var(--ball)}

/* ---------- HERO (главная) ---------- */
.hero{position:relative;background:var(--court);color:var(--line);overflow:hidden;padding:56px 0 0}
.hero__lines{position:absolute;inset:0;pointer-events:none;opacity:.28}
.hero__lines span{position:absolute;background:var(--line)}
.hl-1{left:0;right:0;top:96px;height:1px}
.hl-2{left:0;right:0;bottom:0;height:1px}
.hl-3{top:96px;bottom:0;left:14%;width:1px}
.hl-4{top:96px;bottom:0;right:14%;width:1px}
.hl-5{top:96px;bottom:0;left:50%;width:1px;opacity:.5}

.hero__inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:end}
.hero__eyebrow{color:rgba(255,255,255,.62);border-top:1px solid rgba(255,255,255,.3);padding-top:10px;display:block;margin-bottom:28px}
.hero h1{font-size:clamp(42px,7vw,82px);font-weight:700;letter-spacing:-.005em}
.hero h1 em{font-style:normal;color:var(--ball)}
.hero__lede{max-width:44ch;margin-top:22px;color:rgba(255,255,255,.82);font-size:17px}
.hero__facts{display:flex;gap:28px;margin:34px 0 60px;flex-wrap:wrap}
.fact{border-left:2px solid var(--ball);padding-left:12px}
.fact b{display:block;font-family:var(--mono);font-size:22px;font-weight:500;letter-spacing:-.02em}
.fact span{font-size:12px;color:rgba(255,255,255,.6);text-transform:uppercase;letter-spacing:.08em;font-family:var(--mono)}
.hero__art svg{display:block;width:100%;max-width:300px;margin:0 auto;height:auto}

/* ---------- PAGE HEADER (внутренние) ---------- */
.phead{background:var(--court);color:var(--line);padding:52px 0 46px;position:relative;overflow:hidden}
.phead::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(255,255,255,.35)}
.phead .eyebrow{color:rgba(255,255,255,.6);display:block;margin-bottom:14px}
.phead h1{font-size:clamp(32px,5.4vw,54px);font-weight:700}
.phead p{max-width:58ch;margin-top:16px;color:rgba(255,255,255,.8)}

/* ---------- SECTION SHELL ---------- */
.band{padding:80px 0}
.band--paper{background:var(--paper)}
.band--white{background:var(--paper-2)}
.band--deep{background:var(--court-deep);color:var(--line)}

.sec-head{margin-bottom:40px;max-width:64ch}
.sec-head h2{font-size:clamp(26px,4vw,40px);font-weight:600;margin:12px 0 14px}
.sec-head p{color:var(--graphite)}
.band--deep .sec-head p{color:rgba(255,255,255,.7)}
.band--deep .eyebrow{color:rgba(255,255,255,.55)}

/* ---------- SPEC RULERS ---------- */
.specs{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--hair);border-top:1px solid var(--hair);border-bottom:1px solid var(--hair)}
.spec{background:var(--paper);padding:30px 28px 32px}
.band--white .spec{background:var(--paper-2)}
.spec__top{display:flex;align-items:baseline;gap:10px;margin-bottom:6px;flex-wrap:wrap}
.spec__no{font-family:var(--mono);font-size:11px;color:var(--graphite)}
.spec h3{font-size:21px;font-weight:600}
.spec__unit{font-family:var(--mono);font-size:11px;color:var(--court);background:rgba(15,76,129,.09);padding:2px 6px;border-radius:2px;letter-spacing:.04em}
.spec__text{font-size:14.5px;color:#33444F;margin-top:14px}
.spec__text b{font-weight:600;color:var(--ink)}

.ruler{margin-top:18px}
.ruler__track{
  position:relative;height:30px;
  border-bottom:1.5px solid var(--ink);
  background-image:repeating-linear-gradient(to right,var(--ink) 0 1px,transparent 1px 10%);
  background-position:bottom;background-size:100% 8px;background-repeat:repeat-x;
}
.ruler__band{
  position:absolute;bottom:0;height:16px;
  left:var(--lo);width:calc(var(--hi) - var(--lo));
  background:var(--ball);
  border-left:1.5px solid var(--ink);border-right:1.5px solid var(--ink);
}
.ruler__cap{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;color:var(--graphite);margin-top:7px}
.ruler__arrows{display:flex;justify-content:space-between;font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--court);margin-top:3px}

/* ---------- CONFIGURATOR ---------- */
.cfg{display:grid;grid-template-columns:300px 1fr 260px;gap:34px;align-items:start}
.cfg__stage{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.16);padding:22px;display:flex;justify-content:center}
.cfg__stage svg{width:100%;max-width:230px;height:auto}
.ctl{margin-bottom:22px}
.ctl__row{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:8px;gap:10px}
.ctl__name{font-family:var(--display);text-transform:uppercase;font-size:14px;letter-spacing:.05em;font-weight:500}
.ctl__val{font-family:var(--mono);font-size:15px;color:var(--ball);white-space:nowrap}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:22px;background:transparent;cursor:pointer;margin:0}
input[type=range]::-webkit-slider-runnable-track{height:2px;background:rgba(255,255,255,.35)}
input[type=range]::-moz-range-track{height:2px;background:rgba(255,255,255,.35)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--ball);border:2px solid var(--court-deep);margin-top:-7px}
input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--ball);border:2px solid var(--court-deep)}
.seg{display:flex;border:1px solid rgba(255,255,255,.3)}
.seg button{flex:1;background:transparent;border:0;color:rgba(255,255,255,.7);font-family:var(--mono);font-size:12px;padding:9px 4px;cursor:pointer;transition:background .15s,color .15s}
.seg button[aria-pressed=true]{background:var(--ball);color:var(--court-deep);font-weight:500}
.out__sw{border-bottom:1px solid rgba(255,255,255,.2);padding-bottom:16px;margin-bottom:18px}
.out__sw b{display:block;font-family:var(--mono);font-size:34px;font-weight:500;color:var(--ball);letter-spacing:-.02em}
.out__sw span{font-family:var(--mono);font-size:10.5px;text-transform:uppercase;letter-spacing:.1em;color:rgba(255,255,255,.55)}
.bar{margin-bottom:13px}
.bar__row{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;color:rgba(255,255,255,.75);margin-bottom:5px;text-transform:uppercase;letter-spacing:.06em}
.bar__track{height:5px;background:rgba(255,255,255,.16)}
.bar__fill{height:100%;background:var(--ball);width:0;transition:width .35s cubic-bezier(.2,.7,.3,1)}
.verdict{margin-top:20px;font-size:14px;color:rgba(255,255,255,.85);border-left:2px solid var(--ball);padding-left:12px;min-height:3em}
.presets{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:26px}
.presets button{
  background:transparent;border:1px solid rgba(255,255,255,.3);color:rgba(255,255,255,.8);
  font-family:var(--mono);font-size:11.5px;padding:7px 11px;cursor:pointer;transition:background .15s,color .15s
}
.presets button:hover{background:var(--ball);color:var(--court-deep);border-color:var(--ball)}

/* ---------- TABLES ---------- */
.tscroll{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:460px}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--hair);vertical-align:top}
th{font-family:var(--display);text-transform:uppercase;font-size:12px;letter-spacing:.09em;color:var(--graphite);font-weight:500}
td:first-child{font-family:var(--mono);font-size:13px;white-space:nowrap}
tr.is-common td{background:rgba(215,226,60,.22)}

.duo{display:grid;grid-template-columns:1fr 1fr;gap:56px}

/* ---------- FIX / QA LIST ---------- */
.fix{border-top:1px solid var(--hair)}
.fix__item{display:grid;grid-template-columns:.9fr 1.1fr;gap:32px;padding:20px 0;border-bottom:1px solid var(--hair);align-items:baseline}
.fix__q{font-family:var(--display);text-transform:none;font-size:18px;font-weight:500;letter-spacing:0}
.fix__a{font-size:14.5px;color:#33444F}
.fix__a b{color:var(--court);font-weight:600}

/* ---------- CARD GRID (главная: разделы) ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--hair);border:1px solid var(--hair)}
.card{background:var(--paper-2);padding:26px 24px 28px;text-decoration:none;display:block;transition:background .15s}
.card:hover{background:#fff}
.card__no{font-family:var(--mono);font-size:11px;color:var(--graphite);letter-spacing:.14em}
.card h3{font-size:20px;margin:10px 0 8px}
.card p{font-size:14px;color:#33444F}
.card__go{font-family:var(--mono);font-size:12px;color:var(--court);margin-top:14px;display:block}

/* ---------- GLOSSARY ---------- */
.gloss{border-top:1px solid var(--hair)}
.gloss__row{display:grid;grid-template-columns:220px 1fr;gap:32px;padding:18px 0;border-bottom:1px solid var(--hair)}
.gloss__term{font-family:var(--display);text-transform:uppercase;font-size:15px;letter-spacing:.05em;font-weight:600}
.gloss__term small{display:block;font-family:var(--mono);font-size:11px;text-transform:none;letter-spacing:0;color:var(--graphite);font-weight:400;margin-top:3px}
.gloss__def{font-size:14.5px;color:#33444F}

/* ---------- NEXT LINK ---------- */
.next{background:var(--ball);color:var(--ink);padding:34px 0}
.next a{display:flex;justify-content:space-between;align-items:center;gap:20px;text-decoration:none;flex-wrap:wrap}
.next small{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;display:block;margin-bottom:6px}
.next strong{font-family:var(--display);text-transform:uppercase;font-size:26px;font-weight:600;letter-spacing:.01em}
.next span{font-family:var(--mono);font-size:26px}

/* ---------- FOOTER ---------- */
footer{background:var(--ink);color:rgba(255,255,255,.55);padding:34px 0;font-size:13px}
footer strong{color:var(--line);font-family:var(--display);text-transform:uppercase;letter-spacing:.06em;font-weight:500}
.foot__links{display:flex;gap:18px;flex-wrap:wrap;margin-top:14px}
.foot__links a{font-family:var(--mono);font-size:12px;color:rgba(255,255,255,.6);text-decoration:none}
.foot__links a:hover{color:var(--ball)}

@media (max-width:980px){
  .cards{grid-template-columns:1fr 1fr}
  .cfg{grid-template-columns:1fr}
}
@media (max-width:820px){
  .nav__in{height:auto;padding:12px 0;flex-direction:column;align-items:flex-start;gap:10px}
  .nav__links{margin-left:0;gap:14px}
  .hero__inner{grid-template-columns:1fr;gap:24px}
  .hero__art svg{max-width:200px}
  .specs{grid-template-columns:1fr}
  .duo{grid-template-columns:1fr;gap:44px}
  .fix__item{grid-template-columns:1fr;gap:8px}
  .gloss__row{grid-template-columns:1fr;gap:6px}
  .cards{grid-template-columns:1fr}
  .band{padding:56px 0}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}