/* ========================================================================== 
   ВЫСТУПЛЕНИЯ И ОБУЧЕНИЕ · только уникальная компоновка этой страницы.
   Глобальные цвета, шрифты, шапка, кнопки и адаптивность находятся в
   ../design-system.css — общие правки вносите там.
   ========================================================================== */

:root{
  --paper:#ffffff;
  --ink:#222222;
  --blue:#1d2e4f;
  --amber:#1d2e4f;
  --dark-signal:#8d929b;
  --soft:#f2f2f2;
  --card:#f1f1f1;
  --line:rgba(34,34,34,.18);
  --serif:Georgia,"Times New Roman",serif;
  --sans:Arial,Helvetica,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);overflow-x:hidden}
a{color:inherit;text-decoration:none}
button,summary{font:inherit}
a:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:4px}

.skip{position:fixed;z-index:100;left:8px;top:8px;padding:10px 14px;background:var(--ink);color:var(--paper);transform:translateY(-160%)}
.skip:focus{transform:none}

/* --- Шапка ---------------------------------------------------------------- */
.header{position:sticky;z-index:50;top:0;height:72px;min-height:72px;padding:0 4.2vw;display:block;
  background:rgba(255,255,255,.94);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line)}
.header-inner{width:100%;max-width:1540px;height:100%;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:30px}
.brand{display:flex;align-items:center;gap:18px;min-width:0}
.brand .parent,.brand strong,.brand span,.nav-cta{font-family:var(--sans);font-size:9px;line-height:1.2;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:rgba(34,34,34,.72)}
.brand .parent{display:block;margin:0;padding-right:18px;border-right:1px solid var(--line);white-space:nowrap}
.brand-line{display:flex;align-items:center;gap:18px;min-width:0}
.brand strong{white-space:nowrap;font-weight:700}
.brand span{padding-left:18px;border-left:1px solid var(--line);white-space:nowrap}
.header nav{flex:0 0 auto;display:flex;align-items:center;gap:28px}
.nav-cta,.button{display:flex;align-items:center;justify-content:space-between;gap:36px;
  padding:15px 19px;background:var(--ink);color:var(--paper);
  font-size:10px;letter-spacing:.11em;text-transform:uppercase;font-weight:700;
  border:1px solid var(--ink);transition:transform .25s,background .25s,color .25s}
.nav-cta{min-height:38px;padding:0 14px;gap:10px;background:var(--blue);border:1px solid var(--blue);color:var(--paper);
  font-size:9px;letter-spacing:.13em}
.nav-cta i{color:rgba(255,255,255,.7);font-style:normal;font-size:10px}
.nav-cta:hover{background:var(--ink);border:1px solid var(--ink);color:var(--paper);transform:translateY(-1px)}
.button:hover{transform:translateY(-2px)}

/* --- Первый экран --------------------------------------------------------- */
.hero{min-height:calc(100vh - 72px);display:grid;grid-template-columns:1.08fr .92fr;gap:5vw;padding:7vh 4.2vw 5vh;align-items:center}
.eyebrow{display:flex;align-items:center;gap:11px;margin:0 0 24px;font-size:10px;letter-spacing:.16em;text-transform:uppercase;font-weight:700}
.eyebrow>i{flex:0 0 auto;width:28px;height:2px;background:var(--blue)}
h1{margin:0;font-family:var(--serif);font-size:clamp(40px,4vw,62px);line-height:1.02;letter-spacing:-.042em;font-weight:400}
h1 em{color:var(--blue);font-size:.72em;font-style:italic;font-weight:400}
.wide-br{display:inline}
.lead{max-width:780px;margin:32px 0 0;font-size:clamp(16px,1.2vw,20px);line-height:1.58;color:rgba(34,34,34,.72)}
.signature{display:inline-block;margin-top:18px;padding-bottom:3px;border-bottom:1px solid var(--line);font-size:12px;font-weight:700}
.signature::after{content:" ↗";color:var(--blue)}
.hero-actions{display:flex;align-items:center;gap:24px;margin-top:34px}
.hero-actions p{max-width:270px;margin:0;font-size:12px;line-height:1.45;color:rgba(34,34,34,.58)}

.hero-map{min-height:640px;padding:0;background:#17191e;color:var(--paper);display:grid;overflow:hidden}
.poly-field{position:relative;min-height:640px;overflow:hidden;
  background:radial-gradient(circle at 50% 46%,rgba(50,69,98,.32),transparent 33%),linear-gradient(145deg,#1a1d23 0%,#111319 58%,#0d0f13 100%)}
.poly-grid{position:absolute;inset:0;opacity:.22;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:linear-gradient(135deg,transparent 2%,#000 32%,#000 72%,transparent 100%);
  mask-image:linear-gradient(135deg,transparent 2%,#000 32%,#000 72%,transparent 100%)}
.poly-line{position:absolute;left:50%;top:50%;height:1px;transform-origin:left;
  background:linear-gradient(90deg,rgba(141,146,155,.05),rgba(141,146,155,.46),rgba(141,146,155,.06))}
.poly-line.line-a{width:78%;transform:translate(-48%,-20px) rotate(-24deg)}
.poly-line.line-b{width:69%;transform:translate(-52%,22px) rotate(20deg)}
.poly-line.line-c{width:62%;transform:translate(-50%,0) rotate(4deg)}
.poly{position:absolute;display:block;aspect-ratio:1;background:#343b46;opacity:.9;filter:drop-shadow(0 12px 20px rgba(0,0,0,.25))}
.poly::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.12),transparent 44%);clip-path:inherit}
.poly::after{content:"";position:absolute;inset:11%;border:1px solid rgba(255,255,255,.14);clip-path:inherit}
.poly i,.poly b{position:absolute;display:block;inset:0}
.poly i{background:#1d2e4f;clip-path:polygon(0 0,100% 0,48% 52%,0 100%)}
.poly b{background:#626a76;clip-path:polygon(48% 52%,100% 0,100% 100%,0 100%);opacity:.42}
.poly.p1{width:92px;left:7%;top:12%;transform:rotate(14deg);clip-path:polygon(50% 0,100% 90%,0 72%)}
.poly.p2{width:57px;left:39%;top:8%;transform:rotate(-18deg);clip-path:polygon(50% 0,100% 48%,52% 100%,0 55%)}
.poly.p3{width:112px;right:7%;top:13%;transform:rotate(38deg);clip-path:polygon(50% 0,100% 34%,83% 100%,15% 86%,0 26%)}
.poly.p4{width:72px;left:19%;top:39%;transform:rotate(63deg);clip-path:polygon(0 12%,100% 0,72% 100%,18% 78%)}
.poly.p5{width:132px;left:43%;top:35%;transform:rotate(-12deg);clip-path:polygon(32% 0,91% 12%,100% 66%,63% 100%,8% 83%,0 30%)}
.poly.p6{width:62px;right:13%;top:44%;transform:rotate(19deg);clip-path:polygon(12% 0,100% 21%,81% 100%,0 72%)}
.poly.p7{width:86px;left:4%;bottom:10%;transform:rotate(-31deg);clip-path:polygon(50% 0,100% 57%,66% 100%,0 79%,11% 18%)}
.poly.p8{width:54px;left:31%;bottom:15%;transform:rotate(42deg);clip-path:polygon(14% 0,100% 37%,28% 100%)}
.poly.p9{width:104px;right:31%;bottom:4%;transform:rotate(7deg);clip-path:polygon(50% 0,91% 42%,62% 100%,0 70%,12% 18%)}
.poly.p10{width:70px;right:5%;bottom:13%;transform:rotate(-44deg);clip-path:polygon(21% 0,100% 18%,78% 100%,0 70%)}
.poly.p11{width:46px;right:38%;top:16%;transform:rotate(26deg);opacity:.6;clip-path:polygon(50% 0,100% 50%,49% 100%,0 50%)}
.poly-traveller{position:absolute;z-index:4;left:14%;top:20%;width:13px;height:13px;border-radius:50%;
  background:#b6bac1;box-shadow:0 0 0 7px rgba(182,186,193,.1),0 0 22px rgba(255,255,255,.42);
  transform:translate(-50%,-50%);animation:poly-hop 22s cubic-bezier(.58,.08,.34,.95) infinite}
.poly-traveller::after{content:"";position:absolute;inset:4px;border-radius:50%;background:#fff}
@keyframes poly-hop{
  0%,6%,100%{left:14%;top:20%}
  14%,20%{left:84%;top:22%}
  28%,34%{left:53%;top:46%}
  42%,48%{left:25%;top:45%}
  56%,62%{left:82%;top:50%}
  70%,76%{left:11%;top:83%}
  84%,90%{left:61%;top:87%}
}

/* --- Секции --------------------------------------------------------------- */
.section{padding:120px 6vw;border-bottom:1px solid var(--line)}
.section-soft{background:var(--soft)}
.section-head{display:grid;grid-template-columns:1.3fr .7fr;gap:8vw;align-items:end}
.section-head.single{grid-template-columns:minmax(0,860px)}
.section-head h2,.contact h2{margin:0;font-family:var(--serif);font-size:clamp(48px,5.5vw,84px);line-height:1.03;letter-spacing:-.045em;font-weight:400}
.section-head.single h2{font-size:clamp(38px,3.9vw,58px);line-height:1.06}
.section-head>p{max-width:500px;margin:0 0 7px;font-size:16px;line-height:1.6;color:rgba(34,34,34,.66)}
.small-note{max-width:900px;margin:24px 0 0;font-size:13px;line-height:1.6;color:rgba(34,34,34,.62)}

/* --- Аккордеон-список: темы ---------------------------------------------- */
.topics{margin-top:54px;border-top:1px solid var(--blue)}
.topics details{border-bottom:1px solid var(--line);transition:background .25s ease}
.topics details[open]{background:#f2f4f7}
.topics summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:42px minmax(0,1fr) 42px;
  column-gap:28px;align-items:start;padding:26px 0}
.topics details[open] summary{padding-bottom:18px}
.topics summary::-webkit-details-marker{display:none}
.topics .idx{padding-top:8px;font-size:8px;line-height:1;letter-spacing:.12em;color:var(--blue)}
.topics summary strong{display:block;max-width:760px;font-family:var(--serif);font-size:clamp(22px,2vw,31px);line-height:1.12;letter-spacing:-.02em;font-weight:400}
.topics summary em{display:block;max-width:700px;margin-top:9px;font-style:normal;font-size:13px;line-height:1.5;color:rgba(34,34,34,.62)}
.topics summary i{justify-self:end;width:42px;height:42px;border:1px solid var(--blue);border-radius:50%;
  display:grid;place-items:center;color:var(--blue);font-size:19px;font-style:normal;transition:transform .3s}
.topics summary i::before{content:"+"}
.topics details[open] summary i{transform:rotate(45deg)}
.topics details>p{max-width:720px;margin:0 0 30px 70px;font-size:14px;line-height:1.65;color:rgba(34,34,34,.68)}
.topics details[open]{padding-left:0}
.topics details[open] summary,.topics details>p{padding-right:0}
.topics details[open]>summary,.topics details[open]>p{background:transparent}

/* --- Сетка карточек: форматы --------------------------------------------- */
.session-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:76px;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.session-grid article{min-height:305px;padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  display:flex;flex-direction:column;transition:transform .3s,background .3s}
.session-grid article:hover{transform:translateY(-4px);background:#f2f2f2}
.section-soft .session-grid article:hover{background:#e9e9e9}
.session-grid article>span{font-size:9px;letter-spacing:.12em;color:var(--blue)}
.session-grid h3{margin:auto 0 16px;font-family:var(--serif);font-size:31px;line-height:1.08;font-weight:400}
.session-grid p{min-height:68px;margin:0;font-size:14px;line-height:1.55;color:rgba(34,34,34,.65)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.chips small{display:inline-block;padding:7px 11px;border:1px solid var(--line);font-size:8px;letter-spacing:.13em;text-transform:uppercase;color:rgba(34,34,34,.58)}

/* --- Цитата --------------------------------------------------------------- */
.quote-band{margin:34px 6vw;padding:36px 42px;background:var(--card);color:var(--ink)}
.quote-shell{max-width:900px;margin:0;display:grid;grid-template-columns:28px minmax(0,1fr);column-gap:18px}
.quote-mark{grid-column:1;font-family:var(--serif);font-size:39px;line-height:.78;color:var(--blue)}
.quote-band blockquote{grid-column:2;max-width:790px;margin:0;font-family:var(--serif);font-size:clamp(18px,1.7vw,24px);line-height:1.38;letter-spacing:-.01em}
.quote-caption{grid-column:2;max-width:640px;margin:16px 0 0;font-size:12px;line-height:1.55;color:rgba(34,34,34,.62)}

/* --- Аккордеон-карточки: направления ------------------------------------- */
.clusters{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;margin-top:64px;border:1px solid var(--blue);background:var(--blue)}
.clusters details{background:var(--paper);transition:background .25s ease}
.clusters details[open]{background:#f2f4f7}
.clusters details:last-child:nth-child(odd){grid-column:1/-1}
.clusters summary{list-style:none;cursor:pointer;min-height:118px;padding:28px 30px;
  display:grid;grid-template-columns:minmax(0,1fr) 42px;column-gap:24px;align-items:start}
.clusters summary::-webkit-details-marker{display:none}
.clusters summary strong{max-width:520px;font-family:var(--serif);font-size:clamp(23px,2.05vw,31px);line-height:1.1;letter-spacing:-.025em;font-weight:400}
.clusters summary i{justify-self:end;width:42px;height:42px;border:1px solid var(--blue);border-radius:50%;
  display:grid;place-items:center;color:var(--blue);font-size:19px;font-style:normal;transition:transform .3s}
.clusters summary i::before{content:"+"}
.clusters details[open] summary{min-height:0;padding-bottom:16px}
.clusters details[open] summary i{transform:rotate(45deg)}
.clusters ul{list-style:none;margin:0 30px 30px;padding:0;border-top:1px solid var(--line)}
.clusters li{padding:13px 0;border-bottom:1px solid var(--line);font-size:13px;line-height:1.5;color:rgba(34,34,34,.68)}
.clusters li:last-child{border-bottom:0}

/* --- Список строк: почему со мной ---------------------------------------- */
.situations{margin-top:76px;border-top:1px solid var(--line)}
.situations article{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center;min-height:130px;padding:26px 0;border-bottom:1px solid var(--line)}
.situations h3{margin:0;font-family:var(--serif);font-size:31px;line-height:1.08;font-weight:400}
.situations p{max-width:560px;margin:0;font-size:14px;line-height:1.55;color:rgba(34,34,34,.65)}
.situations p a{border-bottom:1px solid var(--blue);color:var(--blue);white-space:nowrap}

/* --- Шаги ----------------------------------------------------------------- */
.steps{margin-top:72px;border-top:1px solid var(--line)}
.steps article{display:grid;grid-template-columns:170px 1fr;gap:40px;padding:42px 0;border-bottom:1px solid var(--line)}
.steps article>span{font-family:var(--serif);font-size:84px;line-height:.8;color:var(--blue)}
.steps h3{margin:0 0 16px;font-family:var(--serif);font-size:36px;line-height:1.08;font-weight:400}
.steps article p{max-width:780px;margin:0;font-size:15px;line-height:1.65;color:rgba(34,34,34,.65)}
.steps small{display:inline-block;margin-top:18px;padding:7px 11px;border:1px solid var(--line);font-size:8px;letter-spacing:.13em;text-transform:uppercase;color:rgba(34,34,34,.58)}
.steps-note{max-width:700px;margin:32px 0 0 210px;padding-left:18px;border-left:2px solid var(--blue);font-size:13px;line-height:1.6;color:rgba(34,34,34,.62)}

/* --- Финал ---------------------------------------------------------------- */
.contact{background:var(--ink);color:var(--paper);padding:110px 6vw;display:block}
.contact-main{max-width:1280px;margin:0 auto}
.contact h2{max-width:1100px;font-size:clamp(57px,7vw,108px)}
.contact-main>p{max-width:760px;margin:32px 0;font-size:17px;line-height:1.65;color:rgba(255,255,255,.62)}
.contact-actions{display:flex;gap:12px;margin-top:40px}
.button-light{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.button-outline{background:transparent;color:var(--paper);border-color:rgba(255,255,255,.55)}
.contact-main>small{display:block;margin-top:22px;font-size:11px;line-height:1.6;color:rgba(255,255,255,.45)}

footer{padding:38px 6vw 42px;background:var(--ink);color:var(--paper);border-top:1px solid rgba(255,255,255,.18)}
.footer-note{max-width:920px;margin:0;font-size:13px;line-height:1.7;color:rgba(255,255,255,.55)}
.footer-note a{color:var(--paper);border-bottom:1px solid rgba(255,255,255,.2)}

/* --- Адаптив -------------------------------------------------------------- */
@media(max-width:1100px){
  .brand span{display:none}
  .session-grid{grid-template-columns:repeat(2,1fr)}
}

@media(max-width:1000px){
  .wide-br{display:none}
  .hero{grid-template-columns:1fr;min-height:auto;padding:60px 4.2vw 30px}
  .hero-map,.poly-field{min-height:520px}
  .section{padding:90px 5vw}
  .section-head,.section-head.single{grid-template-columns:1fr;gap:42px}
  .clusters{grid-template-columns:1fr}
  .clusters details:last-child:nth-child(odd){grid-column:auto}
  .situations article{grid-template-columns:1fr;gap:14px;align-items:start}
}

@media(max-width:820px){
  .topics summary{grid-template-columns:34px minmax(0,1fr) 36px;column-gap:16px}
  .topics details>p{margin-left:50px}
}

@media(max-width:720px){
  .header{height:64px;min-height:64px;padding:0 20px}
  .header-inner{gap:18px}
  .brand .parent{display:none}
  .brand strong,.nav-cta{font-size:8px;letter-spacing:.1em}
  .nav-cta{min-height:36px;padding:0 11px;gap:0}
  .nav-cta i{display:none}
}

@media(max-width:640px){
  .hero{padding:50px 20px 20px}
  .hero h1{font-size:38px}
  .hero-actions{flex-direction:column;align-items:flex-start}
  .hero-map,.poly-field{min-height:440px}
  .poly{transform:scale(.76)}
  .poly.p1{left:4%}
  .poly.p3{right:2%}
  .poly.p4{left:12%}
  .poly.p6{right:7%}
  .poly.p7{left:0}
  .poly.p10{right:0}
  .poly-traveller{animation-name:poly-hop-mobile}
  @keyframes poly-hop-mobile{
    0%,6%,100%{left:13%;top:20%}
    16%,22%{left:83%;top:22%}
    32%,38%{left:53%;top:46%}
    48%,54%{left:23%;top:45%}
    64%,70%{left:82%;top:51%}
    80%,86%{left:12%;top:82%}
    94%{left:61%;top:86%}
  }
  .section{padding:72px 20px}
  .section-head h2{font-size:44px}
  .section-head.single h2{font-size:38px}
  .topics{margin-top:34px}
  .topics summary{padding:20px 0}
  .topics summary strong{font-size:23px}
  .topics summary i{width:36px;height:36px;font-size:17px}
  .topics details>p{margin:0 0 24px 50px}
  .session-grid{grid-template-columns:1fr;margin-top:50px}
  .session-grid article{min-height:0;padding:26px 22px}
  .session-grid p{min-height:0}
  .quote-band{margin:24px 20px;padding:28px 22px}
  .quote-shell{grid-template-columns:20px minmax(0,1fr);column-gap:11px}
  .quote-mark{font-size:31px}
  .quote-band blockquote{font-size:18px;line-height:1.4}
  .clusters{margin-top:40px}
  .clusters summary{min-height:0;padding:22px 20px;grid-template-columns:minmax(0,1fr) 36px;column-gap:16px}
  .clusters summary strong{font-size:23px}
  .clusters summary i{width:36px;height:36px;font-size:17px}
  .clusters ul{margin:0 20px 22px}
  .situations{margin-top:44px}
  .situations article{min-height:0;padding:24px 0}
  .situations h3{font-size:25px}
  .steps{margin-top:44px}
  .steps article{grid-template-columns:70px 1fr;gap:20px;padding:32px 0}
  .steps article>span{font-size:64px}
  .steps h3{font-size:27px}
  .steps-note{margin:28px 0 0 90px}
  .contact{padding:75px 20px}
  .contact h2{font-size:46px}
  .contact-actions{flex-direction:column}
  .button{min-height:54px}
  footer{padding:34px 20px 40px}
}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .poly-traveller{animation:none;left:53%;top:46%}
}