/* Базовые правила страницы (в основном сайте они в общем каркасе). */
:root { --ink: #dfe7f1; --sub: #7f8da4; --line: #1c2634; --bg: #06080c; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	color: var(--ink); background: var(--bg); line-height: 1.62; }
main { flex: 1; width: 100%; }

.page-landing main{max-width:none;padding:0;width:100%}

:root{
  --bg:#06080c; --panel:#0d1219; --panel2:#111823; --line:#1c2634;
  --text:#dfe7f1; --muted:#7f8da4; --a1:#39d98a; --a2:#2bb4ff; --a3:#ffcc66;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box}
/* Плавная прокрутка по якорям меню; отступ, чтобы липкая шапка не закрывала заголовок секции. */
html{scroll-behavior:smooth}
section[id]{scroll-margin-top:90px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:17px;line-height:1.62;
  background-image:linear-gradient(rgba(28,38,52,.55) 1px,transparent 1px),linear-gradient(90deg,rgba(28,38,52,.55) 1px,transparent 1px),radial-gradient(700px 420px at 80% 0,rgba(43,180,255,.12),transparent 62%),radial-gradient(620px 400px at 5% 60%,rgba(57,217,138,.09),transparent 62%);
  background-size:64px 64px,64px 64px,auto,auto;background-attachment:fixed}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{letter-spacing:-.02em}
.glass{background:var(--panel);border:1px solid var(--line);border-radius:12px}
.btn{display:inline-block;background:var(--a1);color:#06210f;font-weight:700;padding:14px 26px;border-radius:8px;font-size:15px;border:0;cursor:pointer;font-family:var(--mono);letter-spacing:-.01em}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line);font-weight:600}
.btn.sm{padding:10px 18px;font-size:14px}
.pill{display:inline-block;padding:7px 16px;border-radius:6px;border:1px solid rgba(57,217,138,.35);background:rgba(57,217,138,.07);font-size:13px;color:var(--a1);font-family:var(--mono)}
.kicker{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--a2)}
.kicker::before{content:"// ";opacity:.7}
.h2{font-size:38px;margin:12px 0 14px;text-align:center}
.sub{color:var(--muted);margin:0 auto 44px;max-width:660px;text-align:center}
section{padding:84px 0}
.sec-head{text-align:center}

.nav nav a{position:relative;padding:6px 0;transition:color .22s ease}
.nav nav a::after{content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;background:var(--a1);transition:left .22s ease,right .22s ease}
.nav nav a:hover{color:var(--text)}
.nav nav a:hover::after{left:0;right:0}
/* Раздел, который сейчас на экране (подсветку ставит скрипт лендинга). */
.nav nav a.on{color:var(--a1)}
.nav nav a.on::after{left:0;right:0}
.btn{transition:transform .2s ease,box-shadow .2s ease,filter .2s ease}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(57,217,138,.35);filter:brightness(1.08)}
.btn:active{transform:translateY(0)}
.btn.ghost:hover{background:rgba(57,217,138,.1);border-color:rgba(57,217,138,.45);box-shadow:none;color:var(--a1)}
header{position:sticky;top:0;background:rgba(6,8,12,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);z-index:20}
.nav{display:flex;align-items:center;gap:28px;height:70px}
.logo{display:flex;align-items:center;gap:12px;font-weight:700;font-size:15px;line-height:1.25;max-width:280px;font-family:var(--mono)}
.logo img{width:38px;height:auto;flex:none}
.nav nav{display:flex;gap:24px;margin-left:auto;font-size:15px;color:var(--muted)}

.hero{padding:70px 0 64px}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center;text-align:left}
.hero-text .lead{margin:0 0 26px;max-width:560px}
.hero-text .gains{justify-content:flex-start}
.hero-text .pricebar{justify-content:flex-start;margin-top:0}
.carousel{display:grid;gap:14px}
.cwin{overflow:hidden}
.cbar{display:flex;align-items:center;gap:8px;padding:0 16px;height:44px;border-bottom:1px solid var(--line);background:var(--panel2)}
.cbar i{width:10px;height:10px;border-radius:50%;background:#2c3a4d;flex:none}
.cbar .tab{font-family:var(--mono);font-size:12px;color:var(--muted);padding:4px 10px;border-radius:6px;white-space:nowrap}
.cbar .tab:first-of-type{margin-left:10px}
.cbar .tab.active{color:var(--a1);background:rgba(57,217,138,.1)}
.cbar .cnum{margin-left:auto;font-family:var(--mono);font-size:12px;color:var(--muted)}
.ctrack{display:flex}
.cslide{min-width:100%}
.cslide .codeblock{border:0;border-radius:0;background:transparent;flex:1;width:100%;font-size:13px;padding:16px 18px}
.cnav{display:flex;align-items:center;gap:14px;padding:12px 16px;border-top:1px solid var(--line)}
.carrow{width:34px;height:34px;border-radius:8px;background:var(--panel2);border:1px solid var(--line);color:var(--text);font-size:18px;line-height:1;cursor:pointer;font-family:var(--mono)}
.cdots{display:flex;gap:8px;margin:0 auto}
.cdots i{width:8px;height:8px;border-radius:50%;background:#26313f}
.cdots i.on{background:var(--a1);width:22px;border-radius:4px}
.cthumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.cthumb{padding:12px 14px;cursor:pointer}
.cthumb b{display:block;font-size:13px;font-weight:600}
.cthumb span{font-family:var(--mono);font-size:11px;color:var(--muted)}
.cthumb.on{border-color:rgba(57,217,138,.45);background:rgba(57,217,138,.07)}
.play-thumb b::before{content:"▶ ";color:var(--a1);font-size:11px}


h1{font-size:44px;line-height:1.09;margin:18px 0 16px}
h1 span{color:var(--a1)}
.lead{color:var(--muted);font-size:19px;max-width:700px;margin:0 auto 26px}
.gains{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:32px}
.gain{padding:9px 16px;border-radius:8px;background:var(--panel);border:1px solid var(--line);font-size:15px;font-family:var(--mono)}
.gain::before{content:"$ ";color:var(--a1)}
.player{position:relative;overflow:hidden;border-radius:12px;padding-top:38px;background:var(--panel)}
.player::before{content:"● ● ●";position:absolute;top:0;left:0;right:0;height:38px;line-height:38px;padding:0 16px;color:#2c3a4d;font-size:14px;letter-spacing:4px;border-bottom:1px solid var(--line);text-align:left}
.player img{display:block;width:100%;opacity:.92}
.play{position:absolute;inset:38px 0 0;display:flex;align-items:center;justify-content:center}
.play i{width:76px;height:76px;border-radius:14px;background:var(--a1);display:flex;align-items:center;justify-content:center;box-shadow:0 16px 44px rgba(57,217,138,.35)}
.play i::after{content:"";border-left:20px solid #06210f;border-top:13px solid transparent;border-bottom:13px solid transparent;margin-left:5px}
.pricebar{display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap;margin-top:26px;padding:20px 24px}
.pricebar b{font-size:28px;font-family:var(--mono)}
.pricebar span{color:var(--muted);font-size:15px}

.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.stat{padding:20px;text-align:center}
.stat b{display:block;font-size:24px;font-family:var(--mono);color:var(--a1)}
.stat span{color:var(--muted);font-size:14px}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{padding:28px}
.card .ico{display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:10px;background:var(--panel2);border:1px solid var(--line);margin-bottom:16px}
.card .ico img{width:24px;height:24px;filter:brightness(0) invert(1);opacity:.85}
.card .ico.art{width:112px;height:112px;background:none;border:0;box-shadow:none;padding:0}
.card .ico.art img{width:100%;height:100%;object-fit:contain;filter:invert(1) hue-rotate(180deg) saturate(1.2) brightness(1.08);mix-blend-mode:screen;opacity:1}
.note-card{position:relative;margin-top:20px;padding-right:120px}
.note-card .ico{position:absolute;top:24px;right:24px;margin:0}
.cards .card{text-align:center;display:flex;flex-direction:column;align-items:center}
.cards .card .ico{margin-left:auto;margin-right:auto}
.cards .card p{max-width:320px}
.card h3{margin:0 0 8px;font-size:20px}
.card p{margin:0;color:var(--muted);font-size:15px}

.skills{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.skill{display:flex;flex-direction:column;align-items:center;text-align:center;gap:12px;padding:24px 20px;font-size:16px}
.skill img{width:42px;height:42px;filter:brightness(0) invert(1);opacity:.45;transition:opacity .25s ease,transform .25s ease,filter .25s ease}
.skill{transition:border-color .25s ease,background .25s ease}
.skill:hover img{opacity:1;transform:scale(1.08);filter:brightness(0) invert(1) drop-shadow(0 0 12px rgba(57,217,138,.9))}
.skill:hover{border-color:rgba(57,217,138,.45);background:rgba(57,217,138,.07)}

.formsec{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.formsec .h2,.formsec .sub{text-align:left;margin-left:0}
form{padding:30px}
form h3{margin:0 0 6px;font-size:21px;font-family:var(--mono)}
form .note{color:var(--muted);font-size:15px;margin:0 0 20px}
label{display:block;font-size:12px;color:var(--muted);margin:0 0 6px;font-family:var(--mono);text-transform:uppercase;letter-spacing:.08em}
input,select,textarea{width:100%;background:#080c12;border:1px solid var(--line);border-radius:8px;color:var(--text);padding:13px;font-size:15px;font-family:inherit;margin-bottom:16px}
textarea{min-height:96px;resize:vertical}
.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.two>div{min-width:0}
.hint{font-size:13px;color:var(--muted);margin-top:12px}

.specs{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.spec{padding:22px 20px;text-align:center}
.spec{transition:border-color .25s ease,background .25s ease}
.spec img{width:32px;height:32px;display:block;margin:0 auto 10px;filter:brightness(0) invert(1);opacity:.45;transition:opacity .25s ease,transform .25s ease,filter .25s ease}
.spec b{transition:color .25s ease}
.spec:hover img{opacity:1;transform:scale(1.08);filter:brightness(0) invert(1) drop-shadow(0 0 12px rgba(57,217,138,.9))}
.spec:hover b{color:var(--a1)}
.spec:hover{border-color:rgba(57,217,138,.45);background:rgba(57,217,138,.07)}
.spec span{display:block;color:var(--muted);font-size:13px;font-family:var(--mono)}
.spec b{font-size:17px}

.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:18px}
.gallery a{display:block;border-radius:10px;overflow:hidden;border:1px solid var(--line);background:var(--panel)}
.gallery img{width:100%;display:block;filter:grayscale(1) contrast(1.06) brightness(.9);transition:filter .25s ease,transform .25s ease}
.gallery a:hover img{filter:none;transform:scale(1.02)}
.gallery span{display:block;padding:11px 14px;font-family:var(--mono);font-size:12px;color:var(--muted);border-top:1px solid var(--line)}
.gallery a:hover span{color:var(--a1)}
.author{display:grid;grid-template-columns:1.05fr 1fr;gap:28px;align-items:stretch}
.author-photo{position:relative;margin:0;overflow:hidden;min-height:520px}
.author-photo img{width:100%;height:100%;object-fit:cover;display:block}
.author-photo figcaption{position:absolute;left:0;right:0;bottom:0;padding:28px 30px 26px}
.author-photo figcaption b{display:block;font-size:28px;margin-bottom:6px}
.author-photo figcaption span{font-size:15px}
.author-text{padding:34px}
.author-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:22px 0 24px}
.author-facts div{padding:14px 16px}
.author-facts b{display:block;font-size:22px}
.author-facts span{font-size:13px}
.certs-band{position:absolute;left:22px;bottom:136px;width:54%;padding:0;background:none;border:0;box-shadow:none;backdrop-filter:none}
.certs-band span{display:block;font-size:19px;font-weight:600;color:var(--text);margin-bottom:12px;text-shadow:0 2px 12px rgba(0,0,0,.75)}
.certs-band img{width:100%;display:block}
.author-photo{border-radius:12px;border:1px solid var(--line)}
.author-photo figcaption{background:linear-gradient(180deg,transparent,rgba(6,8,12,.94) 55%)}
.author-photo figcaption span{color:var(--muted)}
.author-facts div{background:var(--panel2);border:1px solid var(--line);border-radius:10px}
.author-facts b{font-family:var(--mono);color:var(--a1)}
.author-facts span{color:var(--muted);font-family:var(--mono)}
.certs{display:grid;grid-template-columns:1fr 1fr;gap:8px 20px;margin:16px 0 0;padding:0;list-style:none;color:var(--muted);font-size:15px}
.certs li{display:flex;gap:8px}
.certs li::before{content:"✓";color:var(--a1);font-family:var(--mono)}
.quote{padding:34px;text-align:center;max-width:860px;margin:0 auto;border-left:3px solid var(--a1)}
.quote p{font-size:21px;line-height:1.5;margin:0 0 12px}
.quote span{color:var(--muted);font-size:15px;font-family:var(--mono)}

.chapter{margin-bottom:22px;overflow:hidden}
.chapter-head{display:flex;gap:20px;align-items:center;padding:22px 26px;background:var(--panel2);border-bottom:1px solid var(--line)}
.chapter-head .n{font-family:var(--mono);font-size:12px;color:var(--a2);letter-spacing:.12em;text-transform:uppercase}
.chapter-head h3{margin:2px 0 0;font-size:21px}
.chapter-head p{margin:6px 0 0;color:var(--muted);font-size:15px}
.chapter-head em{margin-left:auto;font-style:normal;color:var(--muted);font-size:13px;white-space:nowrap;font-family:var(--mono)}
.chapter-videos{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:20px 24px;border-bottom:1px solid var(--line)}
.cvideo{position:relative;display:block;overflow:hidden;border:1px solid var(--line)}
.cvideo{transition:border-color .25s ease}
.cvideo img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;filter:grayscale(1) brightness(.82);transition:filter .25s ease,transform .25s ease}
.cvideo .play i{transition:transform .25s ease,box-shadow .25s ease;opacity:.9}
.cvideo:hover img{filter:none;transform:scale(1.03)}
.cvideo:hover .play i{transform:scale(1.1);opacity:1}
.cvideo:hover{border-color:rgba(57,217,138,.5)}
.cvideo:hover b{color:var(--a1)}
.cvideo .play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.cvideo b{position:absolute;left:12px;bottom:10px;font-size:13px;font-weight:600;text-shadow:0 2px 10px rgba(0,0,0,.8)}
.chapter-videos{background:#0a0d1f}
.cvideo{border-radius:10px}
.cvideo .play{inset:0}
.cvideo .play i{width:44px;height:44px;border-radius:10px}
.cvideo .play i::after{border-left-width:13px;border-top-width:9px;border-bottom-width:9px;margin-left:3px}
.lessons{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line)}
.lesson{display:flex;gap:16px;padding:18px 22px;background:var(--panel)}
.lesson img{width:124px;height:74px;object-fit:cover;border-radius:8px;flex:none;border:1px solid var(--line)}
.lesson b{display:block;font-size:16px;margin-bottom:4px}
.lesson .dur{font-family:var(--mono);font-size:12px;color:var(--a1);display:block;margin-bottom:6px}
.lesson p{margin:0;color:var(--muted);font-size:14px;line-height:1.5}

.trailers{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.trailer{overflow:hidden;display:block}
.trailer .pl{position:relative}
.trailer{transition:border-color .25s ease,transform .25s ease}
.trailer .pl img{width:100%;display:block;aspect-ratio:16/9;object-fit:cover;filter:grayscale(1) brightness(.82);transition:filter .25s ease,transform .3s ease}
.trailer .pl .play i{transition:transform .25s ease;opacity:.92}
.trailer b,.trailer span{transition:color .25s ease}
.trailer:hover .pl img{filter:none;transform:scale(1.04)}
.trailer:hover .pl .play i{transform:scale(1.1);opacity:1}
.trailer:hover{border-color:rgba(57,217,138,.5);transform:translateY(-3px)}
.trailer:hover span{color:var(--a1)}
.trailer .pl .play{inset:0}
.trailer .pl .play i{width:54px;height:54px;border-radius:10px}
.trailer .pl .play i::after{border-left-width:15px;border-top-width:10px;border-bottom-width:10px}
.trailer .b{padding:16px 20px}
.trailer b{font-size:17px}
.trailer span{display:block;color:var(--muted);font-size:14px;margin-top:4px;font-family:var(--mono)}

.pays{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.pay{padding:20px;text-align:center}
.pay img{height:32px;object-fit:contain;margin-bottom:10px;max-width:100%}
.pay span{display:block;color:var(--muted);font-size:14px}
.delivery{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.deliv{padding:28px;display:flex;gap:18px}
.deliv img{width:48px;height:48px;flex:none;filter:brightness(0) invert(1);opacity:.8}
.deliv h3{margin:0 0 8px;font-size:20px}
.deliv p{margin:0;color:var(--muted);font-size:15px}

.results{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.result{padding:24px 26px;display:flex;gap:16px;align-items:center;text-align:left}
.result{transition:border-color .25s ease,background .25s ease}
.result img{width:52px;height:52px;flex:none;filter:brightness(0) invert(1);opacity:.45;margin:0;transition:opacity .25s ease,transform .25s ease,filter .25s ease}
.result b{transition:color .25s ease}
.result:hover img{opacity:1;transform:scale(1.08);filter:brightness(0) invert(1) drop-shadow(0 0 12px rgba(57,217,138,.9))}
.result:hover b{color:var(--a1)}
.result:hover{border-color:rgba(57,217,138,.45);background:rgba(57,217,138,.07)}
.result b{font-size:18px}

.offer{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;padding:34px;border:1px solid rgba(57,217,138,.3)}
.offer ul{margin:16px 0 0;padding:0;list-style:none;color:var(--muted)}
.offer li{display:flex;gap:10px;margin-bottom:8px}
.offer li::before{content:"✓";color:var(--a1);font-family:var(--mono)}
.bigprice{font-size:50px;font-weight:700;font-family:var(--mono);color:var(--a1)}

.faq{max-width:880px;margin:0 auto;display:grid;gap:12px}
.q{padding:22px 26px}
.q b{display:flex;gap:14px;font-size:18px;align-items:baseline}
.q b::before{content:">";color:var(--a1);font-family:var(--mono)}
.q b::after{content:"+";margin-left:auto;color:var(--a2);font-size:22px;line-height:1;font-family:var(--mono)}
.q.open b::after{content:"–"}
.q{cursor:pointer;transition:border-color .25s ease}
.q:hover{border-color:rgba(57,217,138,.45)}
.q p{display:none;margin:14px 0 0 22px;color:var(--muted);font-size:15px}
.q.open p{display:block}

footer{border-top:1px solid var(--line);padding:52px 0 36px;color:var(--muted);font-size:15px}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1.3fr;gap:40px;margin-bottom:32px}
.fgrid h4{margin:0 0 14px;font-size:16px;color:var(--text);font-family:var(--mono)}
.fgrid a{display:block;margin-bottom:8px}
.fgrid a{position:relative;width:fit-content;transition:color .22s ease}
.fgrid a::before{content:"› ";color:var(--a1);opacity:0;transition:opacity .22s ease}
.fgrid a::after{content:"";position:absolute;left:0;right:100%;bottom:-2px;height:1px;background:var(--a1);transition:right .22s ease}
.fgrid a:hover{color:var(--text)}
.fgrid a:hover::before{opacity:1}
.fgrid a:hover::after{right:0}
.fform{display:flex;gap:10px}
.fform input{margin:0}
.copy{border-top:1px solid var(--line);padding-top:20px;font-size:13px;line-height:1.6}

.codeblock{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px 20px;font-family:var(--mono);font-size:13.5px;color:#a9e7c6;overflow:auto;margin:0;text-align:left;line-height:1.6}
.codeblock .c{color:#5b6b80}
.codeblock .k{color:var(--a2)}
.codeblock .s{color:var(--a3)}

@media(max-width:980px){
  .gallery{grid-template-columns:1fr}
  h1{font-size:32px}
  .hero-grid{grid-template-columns:1fr}.cthumbs{grid-template-columns:1fr 1fr}.h2{font-size:28px}
  .chapter-videos{grid-template-columns:1fr}
  .note-card{padding-right:26px}.note-card .ico{position:static;margin-bottom:14px}
  .stats,.cards,.skills,.specs,.trailers,.results,.pays,.delivery,.formsec,.author,.offer,.lessons,.fgrid{grid-template-columns:1fr}
  .nav nav{display:none}.author-photo{min-height:420px}.certs-band{width:70%;right:auto;bottom:120px}.author-facts{grid-template-columns:1fr}
}


/* --- Служебные страницы: вход, регистрация, восстановление, настройки ---
   Оформлены в той же гамме «студии кода», что и лендинг: тёмная панель,
   моноширинные подписи полей и зелёная кнопка как в формах страницы курса. */
body:not(.page-landing) main{
  max-width:33rem;padding:56px 20px;
}
body:not(.page-landing) main::before{
  content:"// Программирование: Новый взгляд на 1С-Битрикс";
  display:block;font-family:var(--mono);font-size:12px;color:var(--a2);
  letter-spacing:.14em;text-transform:uppercase;margin-bottom:18px;text-align:center;
}
body:not(.page-landing) main > h1{
  font-size:30px;letter-spacing:-.02em;margin:0 0 18px;text-align:center;
}
body:not(.page-landing) main > form{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:30px;display:block;
}
body:not(.page-landing) main > form label{
  display:block;font-family:var(--mono);font-size:12px;color:var(--muted);
  text-transform:uppercase;letter-spacing:.08em;margin:0 0 6px;
}
body:not(.page-landing) main > form input,
body:not(.page-landing) main > form select,
body:not(.page-landing) main > form textarea{
  width:100%;background:#080c12;border:1px solid var(--line);border-radius:8px;
  color:var(--text);padding:13px;font-size:15px;font-family:inherit;margin-bottom:16px;
}
body:not(.page-landing) main > form button{
  width:100%;background:var(--a1);color:#06210f;font-weight:700;font-family:var(--mono);
  padding:14px 26px;border-radius:8px;font-size:15px;border:0;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
body:not(.page-landing) main > form button:hover{
  transform:translateY(-2px);box-shadow:0 14px 32px rgba(57,217,138,.35);filter:brightness(1.08);
}
body:not(.page-landing) main > p{color:var(--muted);text-align:center;margin:14px 0 0}
body:not(.page-landing) main a{color:var(--a1);text-decoration:none}
body:not(.page-landing) main a:hover{color:var(--text)}
body:not(.page-landing) main > ul{list-style:none;padding:0;margin:0}

/* Страница первичной настройки: подсказка под формой и состояние «уже создан» */
.setup-hint{margin:16px 0 0;color:var(--muted);font-size:14px;text-align:center}
.setup-done{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:30px;text-align:center}
.setup-done b{display:block;font-size:19px;margin-bottom:8px}
.setup-done span{color:var(--muted);font-size:15px}
.setup-done a{display:inline-block;margin-top:18px;background:var(--a1);color:#06210f;font-weight:700;
  font-family:var(--mono);padding:14px 26px;border-radius:8px;font-size:15px}
.setup-done a:hover{filter:brightness(1.08)}

/* Ответ формы лендинга: благодарность и ошибка. */
.lead-thanks{padding:28px;text-align:center}
.lead-thanks b{display:block;font-size:20px;margin-bottom:8px}
.lead-thanks span{color:var(--muted);font-size:15px}
.lead-error{margin:0 0 14px;padding:12px 16px;border-radius:8px;font-size:14px;font-family:var(--mono);
  background:rgba(255,204,102,.1);border:1px solid rgba(255,204,102,.4);color:var(--a3)}

.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.lead-msg:empty{display:none}

/* Чат с ИИ-помощником курса: кнопка в углу и окно в виде терминала */
.chat-btn{position:fixed;right:24px;bottom:24px;z-index:40;display:flex;align-items:center;gap:10px;
  padding:14px 20px;border:0;border-radius:10px;background:var(--a1);color:#06210f;font-family:var(--mono);
  font-weight:700;font-size:14px;cursor:pointer;box-shadow:0 16px 40px rgba(57,217,138,.35);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease}
.chat-btn:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 20px 46px rgba(57,217,138,.45)}
.chat-btn::before{content:">_";font-size:15px}
.chat-panel{position:fixed;right:24px;bottom:24px;z-index:41;width:380px;max-width:calc(100vw - 32px);
  display:flex;flex-direction:column;overflow:hidden;background:var(--panel);border:1px solid var(--line);border-radius:12px;
  box-shadow:0 30px 70px rgba(0,0,0,.55)}
.chat-head{display:flex;align-items:center;gap:8px;padding:0 14px;height:52px;background:var(--panel2);border-bottom:1px solid var(--line)}
.chat-head i{width:10px;height:10px;border-radius:50%;background:#2c3a4d;flex:none}
.chat-head .t{margin-left:8px;line-height:1.2}
.chat-head b{display:block;font-size:14px}
.chat-head span{font-family:var(--mono);font-size:11px;color:var(--muted)}
.chat-close{margin-left:auto;width:30px;height:30px;border-radius:8px;background:transparent;border:1px solid var(--line);
  color:var(--muted);font-size:16px;line-height:1;cursor:pointer;font-family:var(--mono)}
.chat-close:hover{color:var(--a1);border-color:rgba(57,217,138,.45)}
.chat-log{height:340px;overflow-y:auto;padding:18px 16px;display:flex;flex-direction:column;gap:12px}
.chat-log .m{max-width:86%;padding:11px 14px;border-radius:10px;font-size:15px;line-height:1.5}
.chat-log .m.bot{background:var(--panel2);border:1px solid var(--line);border-bottom-left-radius:3px}
.chat-log .m.me{align-self:flex-end;background:rgba(57,217,138,.1);border:1px solid rgba(57,217,138,.35);border-bottom-right-radius:3px}
.chat-log .m.typing span{display:inline-block;width:6px;height:6px;margin-right:4px;border-radius:50%;background:var(--muted);
  animation:chatdot 1s infinite}
.chat-log .m.typing span:nth-child(2){animation-delay:.15s}
.chat-log .m.typing span:nth-child(3){animation-delay:.3s;margin-right:0}
@keyframes chatdot{0%,60%,100%{opacity:.25}30%{opacity:1}}
.chat-form{display:flex;gap:10px;padding:14px;border-top:1px solid var(--line);background:var(--panel2)}
.chat-form input{margin:0;flex:1;background:#080c12;border:1px solid var(--line);border-radius:8px;padding:12px 14px;font-size:15px}
.chat-form button{flex:none;padding:0 18px;border:0;border-radius:8px;background:var(--a1);color:#06210f;
  font-family:var(--mono);font-weight:700;font-size:15px;cursor:pointer}
.chat-note{margin:0;padding:0 14px 12px;background:var(--panel2);font-family:var(--mono);font-size:11px;color:var(--muted)}
@media(max-width:700px){.chat-panel{right:12px;left:12px;bottom:12px;width:auto}.chat-log{height:min(52vh,340px)}}

/* Появление и скрытие чата: панель вырастает из кнопки, кнопка уступает место */
.chat-panel[hidden]{display:none}
.chat-btn{opacity:1;transform:none}
.chat-btn.hide{opacity:0;transform:translateY(12px) scale(.9);pointer-events:none}
.chat-panel{transform-origin:100% 100%;opacity:0;transform:translateY(20px) scale(.94);pointer-events:none;
  transition:opacity .2s ease,transform .28s cubic-bezier(.22,.9,.32,1.15)}
.chat-panel.on{opacity:1;transform:none;pointer-events:auto}
.chat-log .m{animation:msgIn .26s ease both}
@keyframes msgIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){.chat-panel,.chat-btn,.chat-log .m{transition:none;animation:none}}
.chat-log .m.err{border-color:rgba(255,204,102,.4);background:rgba(255,204,102,.08)}
.chat-form button:disabled{opacity:.5;cursor:default}

/* Карусель первого экрана: слайды едут внутри окна редактора.
   Слайд — флекс, поэтому код и кадр трейлера занимают всю высоту окна без пустот. */
.ctrack{transition:transform .35s ease}
.cslide{padding:0;display:flex}
.cslide .cshot{position:relative;display:block;flex:1;align-self:flex-start;margin:16px;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.cslide .cshot img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;filter:grayscale(1) brightness(.82);transition:filter .25s ease,transform .3s ease}
.cslide .cshot:hover img{filter:none;transform:scale(1.03)}
.cslide .cshot .play{inset:0}
.cslide .cshot .play i{width:54px;height:54px;border-radius:10px}
.cslide .cshot .play i::after{border-left-width:15px;border-top-width:10px;border-bottom-width:10px}
.carrow:hover{border-color:rgba(57,217,138,.45);color:var(--a1)}
.cthumb{transition:border-color .25s ease,background .25s ease}
.cthumb:hover{border-color:rgba(57,217,138,.45)}