/* ===== Форум «Управляемость 2026» — палитра и типографика по мотивам forum «Микроэлектроника» ===== */
:root{
  --violet:#6a57a1;        /* базовый фиолет */
  --violet-d:#4b3d78;      /* тёмный фиолет */
  --accent:#9c4eff;        /* яркий акцент */
  --accent-d:#7a2fe0;
  --spark:#ffe000;         /* искра-жёлтый */
  --ink:#1a1730;           /* тёмный текст */
  --muted:#6b6780;
  --line:#e7e3f1;
  --bg:#faf9fc;            /* почти-белый с фиолетовым подтоном */
  --white:#ffffff;
  --tint:#f3effb;          /* лёгкая фиолетовая заливка секции */
  --radius:16px;
  --shadow:0 10px 30px rgba(74,61,120,.10);
  --shadow-lg:0 24px 60px rgba(74,61,120,.18);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"Roboto","Segoe UI",system-ui,Arial,sans-serif;
  font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,.brand__txt{font-family:"Roboto Condensed","Roboto",system-ui,Arial,sans-serif;line-height:1.1;margin:0}
a{color:var(--accent-d);text-decoration:none}
img{max-width:100%;display:block}
.wrap{width:min(1180px,92vw);margin-inline:auto}
.eyebrow{display:inline-block;font-family:"Roboto Condensed";text-transform:uppercase;letter-spacing:.14em;font-size:13px;font-weight:600;color:var(--accent-d);margin-bottom:10px}
.grad{background:linear-gradient(100deg,var(--accent),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---- Кнопки ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4em;
  font-family:"Roboto Condensed";font-weight:600;letter-spacing:.02em;
  padding:13px 26px;border-radius:12px;border:2px solid transparent;cursor:pointer;
  transition:transform .12s ease,box-shadow .2s ease,background .2s;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn--lg{padding:16px 34px;font-size:18px}
.btn--sm{padding:9px 16px;font-size:14px}
.btn--accent{background:var(--accent);color:#fff;box-shadow:0 8px 22px rgba(156,78,255,.35)}
.btn--accent:hover{background:var(--accent-d)}
.btn--outline{background:transparent;color:var(--violet-d);border-color:var(--violet)}
.btn--outline:hover{background:var(--violet);color:#fff}

/* ---- Полоса режима ---- */
.modebar{background:linear-gradient(90deg,var(--violet-d),var(--violet));color:#fff}
.modebar__inner{display:flex;align-items:center;gap:16px;padding:8px 0;flex-wrap:wrap;font-size:14px}
.modebar__label{font-family:"Roboto Condensed";text-transform:uppercase;letter-spacing:.1em;font-size:12px;opacity:.85}
.modeswitch{display:inline-flex;background:rgba(255,255,255,.12);border-radius:999px;padding:3px}
.modeswitch__btn{border:0;background:transparent;color:#fff;font:inherit;font-family:"Roboto Condensed";font-weight:600;
  padding:6px 14px;border-radius:999px;cursor:pointer;opacity:.8;font-size:13px}
.modeswitch__btn.is-active{background:#fff;color:var(--violet-d);opacity:1}
.modebar__hint{margin-left:auto;opacity:.9;font-style:italic}

/* ---- Навигация ---- */
.nav{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav__inner{display:flex;align-items:center;gap:22px;padding:12px 0}
.brand{display:flex;align-items:center;gap:10px}
.brand__txt{font-weight:700;font-size:20px;color:var(--ink);display:flex;flex-direction:column;line-height:.95}
.brand__year{font-size:11px;letter-spacing:.25em;color:var(--accent-d);font-weight:600}
.nav__links{display:flex;gap:20px;margin-left:8px}
.nav__links a{color:var(--ink);font-weight:500;font-size:15px;padding:6px 0;border-bottom:2px solid transparent}
.nav__links a:hover{color:var(--accent-d);border-color:var(--accent)}
.nav__inner .btn{margin-left:auto}
.nav__burger{display:none;background:none;border:0;font-size:24px;cursor:pointer;color:var(--violet-d)}

/* ---- HERO ---- */
.hero{position:relative;overflow:hidden;padding:76px 0 68px;
  background:radial-gradient(1200px 600px at 80% -10%,#efe7ff 0,transparent 60%),var(--bg)}
.hero__glow{position:absolute;inset:auto -10% -40% auto;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(156,78,255,.28),transparent 65%);filter:blur(20px)}
.hero__inner{position:relative}
.hero__badges{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}
.chip{display:inline-flex;align-items:center;font-family:"Roboto Condensed";font-weight:500;font-size:14px;
  padding:7px 15px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--violet-d)}
.chip--solid{background:var(--violet-d);color:#fff;border-color:var(--violet-d)}
.chip--ghost{background:transparent}
.hero__title{font-size:clamp(38px,6vw,68px);font-weight:700;letter-spacing:-.01em;margin-bottom:20px}
.hero__lead{font-size:clamp(17px,2vw,21px);color:var(--muted);max-width:640px;margin-bottom:30px}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px}
.hero__facts{display:flex;gap:38px;flex-wrap:wrap;margin:0;padding-top:26px;border-top:1px solid var(--line)}
.hero__facts dt{font-family:"Roboto Condensed";font-size:30px;font-weight:700;color:var(--violet-d)}
.hero__facts dd{margin:0;color:var(--muted);font-size:15px}

/* ---- Секции ---- */
.section{padding:70px 0}
.section--tint{background:var(--tint)}
.section--dark{background:linear-gradient(160deg,#241d3f,#3a2d63);color:#fff}
.section__head{max-width:720px;margin-bottom:38px}
.section__head h2{font-size:clamp(28px,4vw,42px);font-weight:700}
.section__head--light .eyebrow{color:#c9b6ff}
.section__sub{color:var(--muted);margin-top:10px}
.section--dark .section__sub{color:#c8c1e0}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}

/* ---- Ценность ---- */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.value-card{padding:30px}
.value-card__ic{font-size:34px;margin-bottom:14px}
.value-card h3{font-size:23px;margin-bottom:10px}
.value-card p{color:var(--muted);margin:0}
.value-card--hl{background:linear-gradient(160deg,var(--violet),var(--accent));color:#fff;border:0}
.value-card--hl p{color:rgba(255,255,255,.9)}

/* ---- Программа ---- */
.progtabs{display:inline-flex;gap:6px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px;margin-bottom:30px}
.progtabs__btn{border:0;background:transparent;font:inherit;font-family:"Roboto Condensed";font-weight:600;
  padding:9px 20px;border-radius:999px;cursor:pointer;color:var(--muted)}
.progtabs__btn.is-active{background:var(--violet-d);color:#fff}
.timeline{list-style:none;margin:0;padding:0;border-left:2px solid var(--line);margin-left:70px}
.timeline li{position:relative;padding:0 0 26px 28px}
.timeline li::before{content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 4px #fff,0 0 0 6px var(--tint)}
.timeline .tl-time{position:absolute;left:-98px;top:2px;width:60px;text-align:right;font-family:"Roboto Condensed";font-weight:700;color:var(--violet-d)}
.timeline h3{font-size:20px;margin-bottom:4px}
.timeline p{margin:0;color:var(--muted);font-size:15px}

/* ---- Спикеры ---- */
.speakers-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.speaker{padding:22px;text-align:left;position:relative;overflow:hidden}
.speaker__ava{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-family:"Roboto Condensed";font-weight:700;font-size:22px;color:#fff;margin-bottom:14px;
  background:linear-gradient(150deg,var(--violet),var(--accent))}
.speaker__tag{position:absolute;top:16px;right:16px;font-family:"Roboto Condensed";font-size:11px;text-transform:uppercase;
  letter-spacing:.08em;color:var(--accent-d);background:var(--tint);padding:4px 9px;border-radius:999px}
.speaker h3{font-size:19px;margin-bottom:3px}
.speaker__role{color:var(--muted);font-size:14px;margin:0 0 12px}
.speaker__topic{font-size:15px;border-top:1px dashed var(--line);padding-top:12px;color:var(--ink)}

/* ---- Подготовка ---- */
.prep-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:24px}
.prep-card{padding:28px}
.prep-card h3{font-size:23px;margin-bottom:16px}
.dates{list-style:none;margin:0;padding:0}
.dates li{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}
.dates li:last-child{border:0}
.dates__d{font-family:"Roboto Condensed";font-weight:700;color:#fff;background:var(--violet);
  border-radius:8px;padding:5px 10px;min-width:64px;text-align:center;font-size:14px}
.mini{margin-left:auto;font-size:13px;white-space:nowrap}
.ai-match{margin-top:20px;background:var(--tint);border-radius:12px;padding:18px}
.ai-match h4{font-size:17px;margin-bottom:6px}
.ai-match p{margin:0 0 12px;color:var(--muted);font-size:14px}
.ai-match__tags{display:flex;gap:8px;flex-wrap:wrap}
.ai-match__tags span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:13px;color:var(--violet-d)}

/* ---- Трансляция ---- */
.live-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:22px}
.player__screen{position:relative;aspect-ratio:16/9;border-radius:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:20px;color:#e9e4ff;
  background:linear-gradient(150deg,#100c22,#2a2150);border:1px solid rgba(255,255,255,.1)}
.player__live{position:absolute;top:14px;left:14px;color:#ff5a7a;font-family:"Roboto Condensed";font-weight:700;font-size:13px;letter-spacing:.1em}
.player__play{width:64px;height:64px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:24px;color:#fff}
.player__cams{display:flex;gap:8px;margin-top:12px}
.player__cams button{flex:1;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#d7cff2;
  font:inherit;font-family:"Roboto Condensed";font-weight:600;padding:9px;border-radius:9px;cursor:pointer}
.player__cams button.is-active{background:var(--accent);border-color:var(--accent);color:#fff}
.live-side{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:14px;display:flex;flex-direction:column}
.live-side__tabs{display:flex;gap:6px;margin-bottom:10px}
.live-side__tabs button{flex:1;border:0;background:rgba(255,255,255,.08);color:#d7cff2;font:inherit;font-family:"Roboto Condensed";font-weight:600;padding:8px;border-radius:8px;cursor:pointer}
.live-side__tabs button.is-active{background:#fff;color:var(--violet-d)}
.chatbox{flex:1;display:flex;flex-direction:column;gap:8px;min-height:170px;margin-bottom:10px}
.msg{background:rgba(255,255,255,.07);border-radius:9px;padding:9px 12px;font-size:14px;color:#e9e4ff}
.msg b{color:#c9b6ff;font-weight:600;margin-right:6px}
.msg--poll{background:rgba(156,78,255,.25);border:1px solid rgba(156,78,255,.4)}
.chatform{display:flex;gap:8px}
.chatform input{flex:1;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);color:#fff;border-radius:9px;padding:10px 12px;font:inherit}
.chatform input::placeholder{color:#a99fce}
.note{margin-top:22px;color:var(--muted);font-size:15px}
.note--light{color:#c8c1e0}

/* ---- Локация ---- */
.place-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:24px}
.place-map{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);min-height:340px;border:1px solid var(--line)}
.place-map iframe{width:100%;height:100%;min-height:340px;border:0;display:block}
.warnboard{background:#fff5d6;border:1px solid #f0d982;border-left:5px solid var(--spark);border-radius:12px;padding:18px 20px;color:#5a4a12;font-size:15px;margin-bottom:16px}
.warnboard b{color:#3d3208}
.linkrow{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:12px;color:var(--ink);box-shadow:var(--shadow)}
.linkrow span{display:block;font-family:"Roboto Condensed";font-weight:700;color:var(--accent-d);text-transform:uppercase;letter-spacing:.06em;font-size:13px;margin-bottom:3px}
.linkrow:hover{border-color:var(--accent)}

/* ---- Интерактив ---- */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feat{padding:24px}
.feat h3{font-size:20px;margin-bottom:8px}
.feat p{margin:0;color:var(--muted);font-size:15px}
.feat--cta{background:linear-gradient(160deg,var(--violet-d),var(--accent));color:#fff;border:0}
.feat--cta p{color:rgba(255,255,255,.9)}

/* ---- Архив ---- */
.arch-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.arch{padding:26px}
.arch__ic{font-size:30px;margin-bottom:12px}
.arch h3{font-size:19px;margin-bottom:8px}
.arch p{margin:0;color:var(--muted);font-size:15px}

/* ---- Регистрация ---- */
.reg-grid{max-width:760px;margin-inline:auto}
.reg-tabs{display:flex;gap:6px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px;width:max-content;margin:0 auto 22px}
.reg-tabs__btn{border:0;background:transparent;font:inherit;font-family:"Roboto Condensed";font-weight:600;padding:10px 22px;border-radius:999px;cursor:pointer;color:var(--muted)}
.reg-tabs__btn.is-active{background:var(--accent);color:#fff}
.regform{padding:28px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid2__full{grid-column:1/-1}
.regform label{display:flex;flex-direction:column;gap:6px;font-family:"Roboto Condensed";font-weight:600;font-size:14px;color:var(--violet-d)}
.regform input{border:1px solid var(--line);border-radius:10px;padding:12px 14px;font:inherit;font-family:"Roboto";background:var(--bg)}
.regform input:focus{outline:2px solid var(--accent);border-color:transparent}
.regform__hint{color:var(--muted);font-size:14px;margin:16px 0}
.regform .btn{width:100%;margin-top:4px}
.regform__demo{text-align:center;color:var(--muted);font-size:13px;margin:12px 0 0}

/* ---- Подвал ---- */
.foot{background:#1a1730;color:#cfc8e6;padding:44px 0 22px}
.foot__inner{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.1)}
.brand--foot .brand__txt{color:#fff}
.foot__addr{color:#9c94bd;font-size:14px;margin:12px 0 0;max-width:420px}
.foot__nav{display:flex;gap:20px;flex-wrap:wrap;align-items:center}
.foot__nav a{color:#cfc8e6}
.foot__nav a:hover{color:#fff}
.foot__base{padding-top:18px;color:#7d769b;font-size:13px}

/* ---- Toast ---- */
.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);background:var(--violet-d);color:#fff;
  padding:14px 22px;border-radius:12px;box-shadow:var(--shadow-lg);z-index:60;font-weight:500;max-width:90vw}

/* ---- Режимы: показ/скрытие ---- */
[data-mode-block]{display:none}
body[data-mode="before"] [data-mode-block="before"],
body[data-mode="live"] [data-mode-block="live"],
body[data-mode="after"] [data-mode-block="after"]{display:block}
[data-mode-only]{display:none}
body[data-mode="before"] [data-mode-only="before"],
body[data-mode="live"] [data-mode-only="live"],
body[data-mode="after"] [data-mode-only="after"]{display:inline}

/* ---- Адаптив ---- */
@media(max-width:960px){
  .speakers-grid,.feat-grid,.arch-grid{grid-template-columns:repeat(2,1fr)}
  .value-grid{grid-template-columns:1fr}
  .prep-grid,.live-grid,.place-grid{grid-template-columns:1fr}
  .nav__links{display:none}
  .nav__links.is-open{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:#fff;padding:16px 6vw;box-shadow:var(--shadow);gap:8px}
  .nav__burger{display:block;order:3}
  .nav__inner .btn{margin-left:auto}
  .modebar__hint{display:none}
}
@media(max-width:560px){
  .speakers-grid,.feat-grid,.arch-grid{grid-template-columns:1fr}
  .grid2{grid-template-columns:1fr}
  .timeline{margin-left:56px}
  .timeline .tl-time{left:-78px;width:52px}
  .hero__facts{gap:22px}
}