/* ============================================================
   Ассоциация развития технологий радиочастотной идентификации
   rfidassociation.ru — v2.1 (статическая версия)
   Палитра оригинального сайта: акцент #EC6152, белый фон.
   ============================================================ */

:root{
  --ink:        #17181a;
  --ink-soft:   #3a3b3e;
  --muted:      #6e6a67;
  --paper:      #ffffff;
  --surface:    #f7f5f3;
  --line:       #e8e4e0;
  --coral:      #ec6152;
  --coral-deep: #d14b3d;
  --coral-soft: #fdeeec;
  --radius:     14px;
  --maxw:       1180px;
  --font-body:  "Inter","Segoe UI",system-ui,-apple-system,sans-serif;
  --font-disp:  "Unbounded","Inter",system-ui,sans-serif;
  --font-mono:  "JetBrains Mono","SFMono-Regular",Consolas,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
html,body{overflow-x:hidden}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001s !important;animation-iteration-count:1 !important;transition-duration:.001s !important}
}
body{
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
a{color:var(--coral-deep);text-decoration:none}
a:hover{text-decoration:underline}
a:focus-visible,button:focus-visible{outline:2px solid var(--coral);outline-offset:3px;border-radius:4px}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.is-hidden{display:none !important}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:74px}
.brand{display:flex;align-items:center;gap:13px;color:var(--ink);flex:none}
.brand:hover{text-decoration:none}
.brand-mark{height:44px;width:auto;flex:none}
.brand-name{font-family:var(--font-disp);font-weight:600;font-size:16px;letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;flex-wrap:nowrap}
.main-nav a{
  color:var(--ink-soft);font-weight:500;font-size:14.5px;white-space:nowrap;
  padding:9px 14px;border-radius:9px;transition:background .18s,color .18s;
  text-align:center;line-height:1;
}
.main-nav a:hover{background:var(--surface);color:var(--ink);text-decoration:none}
.main-nav a[aria-current="page"]{color:var(--coral-deep);background:var(--coral-soft)}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;padding:9px 12px;cursor:pointer;color:var(--ink);font:inherit;font-size:15px}

/* ---------- Hero (анимация в фоне, без заливки) ---------- */
.hero{position:relative;border-bottom:1px solid var(--line);overflow:visible}
.hero .container{position:relative}
.hero-inner{position:relative;z-index:1;max-width:600px;padding:100px 0 116px}
.hero-eyebrow{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.14em;
  color:var(--coral-deep);text-transform:uppercase;margin-bottom:18px;
  display:inline-flex;align-items:center;gap:10px;
}
.hero-eyebrow::before{content:"";width:26px;height:2px;background:var(--coral)}
.hero h1{
  font-family:var(--font-disp);font-weight:600;
  font-size:clamp(28px,4vw,44px);line-height:1.16;letter-spacing:-.01em;margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--coral)}
.hero-sub{font-size:17.5px;color:var(--muted);max-width:520px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* Фоновая анимация: RFID-инлей, радиоволны расходятся без ограничений */
.hero-anim{
  position:absolute;top:50%;right:0;transform:translateY(-50%);
  width:min(560px,44vw);pointer-events:none;z-index:0;
}
.hero-anim svg{overflow:visible;width:100%;height:auto}
/* две сцены героя (UHF-инлей и NFC-карта): видна одна, выбирается случайно в main.js */
.hero-anim .scene.is-hidden{display:none}
.epc-line{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.16em;
  color:var(--muted);margin-top:16px;text-align:center;white-space:nowrap;
}
.epc-line .ok{color:var(--coral-deep);font-weight:600}

.wave{transform-origin:300px 130px;opacity:0}
.animated .wave{animation:wavePulse 4.2s cubic-bezier(.25,.6,.4,1) infinite}
.animated .wave:nth-of-type(2){animation-delay:1.4s}
.animated .wave:nth-of-type(3){animation-delay:2.8s}
@keyframes wavePulse{
  0%{transform:scale(.15);opacity:0}
  10%{opacity:.8}
  75%{opacity:.18}
  100%{transform:scale(2.6);opacity:0}
}
.chip-core{transform-origin:300px 130px}
.animated .chip-core{animation:chipGlow 4.2s ease-in-out infinite}
@keyframes chipGlow{0%,100%{opacity:.85}10%{opacity:1}50%{opacity:.9}}
@media (prefers-reduced-motion: reduce){
  .wave{opacity:.3;transform:scale(1.1)}
}

/* ---------- Sections ---------- */
section{padding:76px 0}
.section-alt{background:var(--surface)}
.section-head{max-width:720px;margin-bottom:44px}
.eyebrow{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--coral-deep);margin-bottom:12px;display:block;
}
h2{font-family:var(--font-disp);font-weight:600;font-size:clamp(23px,3vw,32px);line-height:1.22;letter-spacing:-.005em}
.section-head p{color:var(--muted);margin-top:14px;font-size:16.5px}
h3{font-family:var(--font-disp);font-weight:500;font-size:19px;line-height:1.3}

.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){.reveal{opacity:1;transform:none}}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-weight:600;font-size:15px;padding:13px 24px;border-radius:12px;
  border:1px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 6px 18px rgba(236,97,82,.28)}
.btn-primary:hover{background:var(--coral-deep)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--coral);color:var(--coral-deep)}
.btn-more{
  background:none;color:var(--coral-deep);border:1px solid var(--coral);
  padding:9px 18px;font-size:14px;border-radius:10px;margin-top:auto;align-self:flex-start;
}
.btn-more:hover{background:var(--coral-soft)}

/* ---------- Cards / grids ---------- */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;transition:border-color .2s,box-shadow .2s,transform .2s;
  display:flex;flex-direction:column;
}
.section-alt .card{background:#fff}
.card:hover{border-color:#dcd6d1;box-shadow:0 10px 28px rgba(23,24,26,.06);transform:translateY(-2px)}
.card h3{margin-bottom:10px}
.card p{color:var(--muted);font-size:15px}
/* описание тянется по высоте карточки — кнопка «Подробнее» всегда прижата к низу */
.card > p{flex:1 0 auto}
.card .btn-more{margin-top:18px}
.card-icon{
  width:46px;height:46px;border-radius:12px;background:var(--coral-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:var(--coral-deep);flex:none;
}
.card-icon svg{width:24px;height:24px}

/* ---------- About / certificate ---------- */
.about-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:44px;align-items:start}
.about-text p+p{margin-top:14px}
.about-text .lead{font-size:18px;color:var(--ink-soft)}
.cert-card{border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:#fff}
.cert-card .cert-num{font-family:var(--font-mono);font-size:13px;color:var(--muted);margin:6px 0 16px}
.doc-chip{
  display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:14.5px;
  color:var(--coral-deep);border:1px solid var(--coral);border-radius:10px;padding:10px 16px;
}
.doc-chip:hover{background:var(--coral-soft);text-decoration:none}

/* ---------- Showroom ---------- */
.showroom{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  background:var(--ink);color:#fff;border-radius:20px;padding:52px;
}
.showroom h2{color:#fff}
.showroom p{color:#c9c7c4;margin:16px 0 28px;font-size:16.5px}
.showroom .btn-primary{box-shadow:none}
.showroom-visual svg{width:100%;height:auto}

/* ---------- News ---------- */
.news-card{display:flex;flex-direction:column}
.news-date{font-family:var(--font-mono);font-size:12.5px;color:var(--muted);letter-spacing:.08em;margin-bottom:10px}
.news-card h3{font-size:17px;margin-bottom:10px}
.news-card p{flex:1}
.news-card .more{margin-top:16px;font-weight:600;font-size:14.5px}

/* ---------- Socials ---------- */
.socials{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.social-tile{
  display:flex;align-items:center;gap:14px;padding:18px 20px;border:1px solid var(--line);
  border-radius:var(--radius);background:#fff;color:var(--ink);font-weight:600;font-size:15px;
  transition:border-color .2s,transform .2s;
}
.social-tile:hover{text-decoration:none;border-color:var(--coral);transform:translateY(-2px)}
.social-tile small{display:block;font-weight:400;color:var(--muted);font-size:12.5px}
.social-ic{width:40px;height:40px;flex:none;border-radius:10px;display:flex;align-items:center;justify-content:center;background:var(--coral-soft);color:var(--coral-deep)}

/* ---------- Members ---------- */
.member-card{display:flex;flex-direction:column;gap:16px}
.member-logo{height:74px;display:flex;align-items:center}
.member-logo img{max-height:64px;width:auto}
.logo-fallback{
  font-family:var(--font-disp);font-weight:600;font-size:21px;letter-spacing:.01em;
  color:var(--ink);display:flex;align-items:center;gap:10px;
}
.logo-fallback .sq{width:14px;height:14px;background:var(--coral);border-radius:4px}
.member-site{font-family:var(--font-mono);font-size:13.5px;font-weight:500}
.member-tag{
  align-self:flex-start;font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:var(--coral-deep);background:var(--coral-soft);padding:4px 10px;border-radius:99px;
}
.note{
  margin-top:18px;padding:14px 18px;border-left:3px solid var(--coral);
  background:var(--coral-soft);border-radius:0 10px 10px 0;font-size:14px;color:var(--ink-soft);
}

/* ---------- Documents ---------- */
.doc-list{display:grid;gap:12px;max-width:760px}
.doc-row{
  display:flex;align-items:center;gap:18px;padding:18px 22px;
  border:1px solid var(--line);border-radius:var(--radius);background:#fff;color:var(--ink);
  transition:border-color .2s;
}
.doc-row:hover{border-color:var(--coral);text-decoration:none}
.doc-row .doc-ic{width:42px;height:42px;flex:none;border-radius:10px;background:var(--coral-soft);color:var(--coral-deep);display:flex;align-items:center;justify-content:center}
.doc-row .doc-name{font-weight:600;font-size:15px}
.doc-row .doc-meta{font-size:13px;color:var(--muted);font-family:var(--font-mono)}
.doc-row .dl{margin-left:auto;color:var(--muted)}

/* ---------- Steps (страницы решений) ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{position:relative;padding:26px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-family:var(--font-mono);font-weight:600;font-size:13px;color:var(--coral-deep);
  display:block;margin-bottom:12px;letter-spacing:.12em;
}
.step h3{font-size:16.5px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px}
.benefit-num{
  font-family:var(--font-mono);font-weight:600;font-size:13px;color:var(--coral-deep);
  border:1px solid var(--coral);border-radius:99px;width:30px;height:30px;
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.law-chips{display:flex;flex-wrap:wrap;gap:12px}
.law-chip{
  border:1px solid var(--line);border-radius:12px;background:#fff;padding:14px 20px;
  font-weight:600;font-size:14.5px;
}
.law-chip small{display:block;font-weight:400;color:var(--muted);font-size:12.5px;margin-top:2px}

/* ---------- Page hero / article ---------- */
.page-hero{background:var(--surface);border-bottom:1px solid var(--line);padding:56px 0}
.page-hero h1{font-family:var(--font-disp);font-weight:600;font-size:clamp(26px,3.4vw,38px);line-height:1.2}
.page-hero p{color:var(--muted);margin-top:12px;max-width:680px;font-size:16.5px}
.breadcrumbs{font-family:var(--font-mono);font-size:12.5px;color:var(--muted);margin-bottom:16px}
.breadcrumbs a{color:var(--muted)}
.article{max-width:760px;margin:0 auto}
.article .news-date{font-size:13px}
.article h1{font-family:var(--font-disp);font-weight:600;font-size:clamp(24px,3vw,34px);line-height:1.25;margin:8px 0 26px}
.article p{margin-bottom:16px;font-size:16.5px}
.article ul{margin:0 0 16px 22px}
.article li{margin-bottom:8px;font-size:16px}
.article figure{margin:28px 0}
.article figure img{border-radius:var(--radius);width:100%}
.article figcaption{font-size:13.5px;color:var(--muted);margin-top:10px}
.article .highlight{background:var(--coral-soft);border-left:3px solid var(--coral);padding:18px 22px;border-radius:0 12px 12px 0;margin:26px 0}

/* ---------- Contacts ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.contact-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.contact-item:last-child{border-bottom:none}
.contact-item .c-ic{width:42px;height:42px;flex:none;border-radius:11px;background:var(--coral-soft);color:var(--coral-deep);display:flex;align-items:center;justify-content:center}
.contact-item .c-label{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.contact-item .c-value{font-weight:600;font-size:16px;margin-top:2px}
.map-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.map-card .map-canvas{background:var(--surface)}
.map-card .map-foot{padding:16px 20px;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#b9b7b4;margin-top:40px}
.footer-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding:56px 0 40px}
.footer-brand{display:flex;align-items:flex-start;gap:16px;color:#fff}
.footer-brand:hover{text-decoration:none}
.footer-brand .brand-mark{height:56px;background:#fff;border-radius:12px;padding:6px}
.footer-brand-name{
  font-family:var(--font-disp);font-weight:500;font-size:13.5px;line-height:1.45;
  letter-spacing:.03em;text-transform:uppercase;color:#fff;max-width:300px;
}
.footer-brand-name small{
  display:block;font-family:var(--font-mono);font-weight:400;font-size:11px;
  letter-spacing:.18em;color:#8b8987;margin-top:8px;
}
.footer-col h4{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:#8b8987;margin-bottom:16px;font-weight:500}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:9px}
.footer-col a{color:#d9d7d4;font-size:14.5px}
.footer-col a:hover{color:#fff}
.footer-note{font-size:13.5px;margin-top:18px;max-width:340px}
.footer-bottom{border-top:1px solid #2c2d2f;padding:20px 0;display:flex;justify-content:space-between;gap:16px;font-size:13px;flex-wrap:wrap}

/* ---------- Responsive ---------- */
@media (max-width: 1080px){
  .hero-inner{max-width:52%}
  .hero-anim{width:46vw}
}
@media (max-width: 940px){
  .main-nav{
    position:fixed;inset:74px 0 auto 0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;padding:12px 20px 20px;display:none;
    box-shadow:0 20px 40px rgba(23,24,26,.08);
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:13px 14px;font-size:16px;text-align:left}
  .nav-toggle{display:block}
  .hero-inner{max-width:100%;padding:64px 0 40px}
  .hero-anim{position:static;transform:none;width:min(480px,92%);margin:0 auto;padding-bottom:56px}
  .grid-3,.grid-4,.steps{grid-template-columns:repeat(2,1fr)}
  .about-grid,.showroom,.contact-grid{grid-template-columns:1fr}
  .socials{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width: 640px){
  section{padding:56px 0}
  .grid-2,.grid-3,.grid-4,.steps,.socials{grid-template-columns:1fr}
  .showroom{padding:32px}
  .footer-inner{grid-template-columns:1fr}
  .brand-name{font-size:14.5px}
}

/* ---------- Страницы решений: доп. блоки (v2.2) ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:26px}
.stat-num{font-family:var(--font-disp);font-weight:600;font-size:clamp(26px,2.6vw,34px);color:var(--coral);line-height:1.1;margin-bottom:8px}
.stat-card .stat-label{font-weight:600;font-size:15px;margin-bottom:6px}
.stat-card p{color:var(--muted);font-size:14px}
.footnote{font-size:13px;color:var(--muted);margin-top:16px}

.cmp-wrap{overflow-x:auto}
.cmp-table{width:100%;border-collapse:separate;border-spacing:0;font-size:14.5px;min-width:640px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.cmp-table th,.cmp-table td{padding:13px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.cmp-table thead th{
  font-family:var(--font-mono);font-weight:500;font-size:12px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--muted);border-bottom:2px solid var(--line);
}
.cmp-table .hl{background:var(--coral-soft);font-weight:600}
.cmp-table thead .hl{color:var(--coral-deep);border-bottom-color:var(--coral)}
.cmp-table tr:last-child td,.cmp-table tr:last-child th{border-bottom:none}
.cmp-table tbody th{font-weight:600;color:var(--ink);font-size:14.5px}

.flow-chain{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:14px;font-weight:600}
.flow-chain .fc{border:1px solid var(--line);background:#fff;border-radius:99px;padding:9px 18px;white-space:nowrap}
.flow-chain .fc-arrow{color:var(--coral);font-weight:700}
.flow-chain .fc.fc-final{background:var(--coral);border-color:var(--coral);color:#fff}

.risk-note{
  display:flex;align-items:center;gap:14px;margin-top:22px;
  border:1px solid var(--coral);background:var(--coral-soft);border-radius:var(--radius);
  padding:18px 22px;font-size:15px;
}
.risk-note strong{color:var(--coral-deep)}

@media (max-width: 940px){ .stat-grid{grid-template-columns:repeat(2,1fr)} }
@media (max-width: 640px){ .stat-grid{grid-template-columns:1fr} }

/* ---------- Видео в разделах решений ---------- */
.video-block{margin:32px 0 0;max-width:880px}
.video-block video{
  width:100%;height:auto;display:block;background:var(--ink);
  border:1px solid var(--line);border-radius:var(--radius);
}
.video-block figcaption{font-size:14px;color:var(--muted);margin-top:12px;max-width:760px}