/* Трансильванский экспресс — стили ограничены .ba-landing (см. docs/landings.md) */
.ba-landing{
  color-scheme:dark;
  --ink:#07080A; --ink-2:#0D0F13; --ink-3:#15181E; --line:#262A32;
  --text:#EEEAE3; --muted:#9A958D; --teal:#4DB2BC; --amber:#E3A857;
  --display:'Dela Gothic One',Impact,'Arial Black',sans-serif;
  --body:Inter,'Helvetica Neue',Arial,sans-serif;
}
.ba-landing *{box-sizing:border-box}
html{scroll-behavior:smooth}
.ba-landing{margin:0;background:var(--ink);color:var(--text);font-family:var(--body);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
.ba-landing h1,.ba-landing h2,.ba-landing h3{font-family:var(--display);font-weight:400;margin:0;text-transform:uppercase;text-wrap:balance;line-height:1.05}
.ba-landing button,.ba-landing input{font:inherit;color:inherit}
.ba-landing :focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.ba-landing [hidden]{display:none!important}
.ba-landing .wrap{max-width:1200px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.ba-landing .eyebrow{display:flex;align-items:center;gap:12px;margin:0;font-size:12px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--accent)}
.ba-landing .eyebrow::before{content:'';width:34px;height:2px;background:currentColor}
.ba-landing .ba-section{position:relative;padding-block:72px;border-top:1px solid var(--line)}
.ba-landing .ba-section h2{font-size:clamp(28px,4vw,46px);margin-top:16px}
.ba-landing .lead{max-width:62ch;color:#C9C3BA;font-size:18px;margin:16px 0 0}
.ba-landing .btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:54px;padding:0 28px;border-radius:12px;border:0;cursor:pointer;text-decoration:none;
  font-family:var(--display);font-size:15px;letter-spacing:.06em;text-transform:uppercase;background:var(--accent);color:#0B0B0D;transition:transform .2s,filter .2s}
.ba-landing .btn:hover{transform:translateY(-2px);filter:brightness(1.08)}
.ba-landing .btn--ghost{background:transparent;color:var(--text);border:1.5px solid rgba(238,234,227,.4)}
.ba-landing .btn:disabled{opacity:.4;cursor:default;transform:none}
.ba-landing .flag{display:inline-block;padding:2px 9px;border-radius:999px;border:1px dashed var(--muted);color:var(--muted);font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;vertical-align:middle;font-family:var(--body)}
.ba-landing .facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ba-landing .fact{padding:24px 20px;border-left:1px solid var(--line);min-width:0}
.ba-landing .fact:first-child{border-left:0}
.ba-landing .fact b{display:block;font-family:var(--display);font-weight:400;font-size:clamp(24px,3vw,38px);line-height:1.05}
.ba-landing .fact span{display:block;margin-top:8px;color:var(--muted);font-size:14px}
.ba-landing .ba-faq{margin-top:32px;display:grid;gap:10px;max-width:860px}
.ba-landing .ba-faq details{border:1px solid var(--line);border-radius:14px;background:var(--ink-3);padding:0 20px}
.ba-landing .ba-faq summary{cursor:pointer;list-style:none;padding:18px 30px 18px 0;font-weight:600;font-size:17px;position:relative}
.ba-landing .ba-faq summary::-webkit-details-marker{display:none}
.ba-landing .ba-faq summary::after{content:'+';position:absolute;right:0;top:14px;font-size:24px;color:var(--accent);transition:transform .25s}
.ba-landing .ba-faq details[open] summary::after{transform:rotate(45deg)}
.ba-landing .ba-faq details p{margin:0 0 18px;color:#C9C3BA}
.ba-landing .book{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:28px;align-items:center}
.ba-landing .book h2{font-size:clamp(30px,4.4vw,54px)}
.ba-landing .book__cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.ba-landing .ba-contacts{display:grid;gap:12px}
.ba-landing .ba-contacts span{display:block;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.ba-landing .note{color:var(--muted);font-size:14px;margin:12px 0 0;min-height:1.4em}
@keyframes ba-express-rise{from{opacity:0;transform:translateY(10px)}}
@media (max-width:860px){.ba-landing .facts{grid-template-columns:repeat(2,minmax(0,1fr))}
.ba-landing .fact:nth-child(3){border-left:0}
.ba-landing .fact:nth-child(n+3){border-top:1px solid var(--line)}
.ba-landing .book{grid-template-columns:1fr}}
@media (max-width:680px){.ba-landing .ba-section{padding-block:52px}
.ba-landing .lead{font-size:16.5px}}
@media (prefers-reduced-motion:reduce){.ba-landing *{animation-duration:.01ms!important;transition-duration:.01ms!important}}
.ba-landing{--accent:#D9A55B;--blood:#C8323F;--brass:#D9A55B;--moon:#F3E6C4;--old:'Cinzel',Georgia,serif}
.ba-landing .hero{position:relative;min-height:min(100svh,900px);display:grid;align-items:end;overflow:hidden;padding-top:var(--site-h);isolation:isolate;
  background:radial-gradient(circle at 78% 28%,rgba(243,230,196,.22),transparent 22%),linear-gradient(180deg,#0B0E1A 0%,#1A0F1A 55%,#0A0708 100%)}
.ba-landing .stars{position:absolute;inset:0;z-index:-1;background-image:radial-gradient(1px 1px at 10% 20%,#fff,transparent),radial-gradient(1px 1px at 30% 8%,#fff,transparent),radial-gradient(1.5px 1.5px at 52% 18%,#fff,transparent),radial-gradient(1px 1px at 66% 6%,#fff,transparent),radial-gradient(1px 1px at 88% 14%,#fff,transparent),radial-gradient(1px 1px at 18% 36%,#fff,transparent),radial-gradient(1px 1px at 42% 30%,#fff,transparent),radial-gradient(1.5px 1.5px at 94% 40%,#fff,transparent);opacity:.7}
.ba-landing .scene{position:absolute;left:0;right:0;bottom:0;width:100%;height:auto;z-index:0}
.ba-landing .train{animation:ba-express-ride 40s linear infinite -14s !important}
@keyframes ba-express-ride{from{transform:translateX(-620px)}to{transform:translateX(1500px)}}
.ba-landing .smoke{animation:ba-express-puff 2.4s ease-out infinite;transform-box:fill-box;transform-origin:center}
@keyframes ba-express-puff{0%{opacity:.6;transform:translate(0,0) scale(.6)}100%{opacity:0;transform:translate(-40px,-50px) scale(1.8)}}
.ba-landing .bat{animation:ba-express-flap .35s ease-in-out infinite alternate;transform-box:fill-box;transform-origin:center}
@keyframes ba-express-flap{to{transform:scaleY(.45)}}
.ba-landing .bats{animation:ba-express-batfly 9s ease-in-out infinite !important}
@keyframes ba-express-batfly{0%,100%{transform:translate(0,0)}50%{transform:translate(-60px,24px)}}
.ba-landing .hero__in{position:relative;z-index:2;width:100%;padding-block:40px 180px;display:grid;gap:20px;justify-items:start}
.ba-landing .hero__in>*{max-width:640px}
.ba-landing .hero h1{font-size:clamp(42px,6.6vw,86px)}
.ba-landing .hero h1 small{display:block;font-family:var(--old);font-size:.3em;letter-spacing:.2em;color:var(--brass);margin-bottom:12px}
.ba-landing .hero p.l{margin:0;font-size:19px;color:#D8D0C6}
.ba-landing .calm{display:inline-flex;align-items:center;gap:10px;padding:10px 16px;border-radius:12px;border:1px solid rgba(217,165,91,.4);background:rgba(10,8,12,.6);font-size:14.5px;color:#EADBC0}
.ba-landing .calm b{color:var(--brass)}
.ba-landing .hero__cta{display:flex;flex-wrap:wrap;gap:12px}
.ba-landing .route{margin-top:36px;border-radius:24px;border:1px solid var(--line);background:linear-gradient(180deg,#120D12,#0B090C);overflow:hidden}
.ba-landing .route__top{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:18px 24px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.ba-landing .keys{display:flex;gap:6px}
.ba-landing .keys i{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-style:normal;font-size:15px;background:#1D171C;border:1px solid var(--line);filter:grayscale(1);opacity:.5;transition:.4s}
.ba-landing .keys i.on{filter:none;opacity:1;border-color:var(--brass);background:rgba(217,165,91,.15);transform:scale(1.08)}
.ba-landing .route__top span{font-size:14px;color:var(--muted)}
.ba-landing .line{position:relative;padding:52px 34px 18px}
.ba-landing .rail{position:absolute;left:60px;right:60px;top:76px;height:6px;background:repeating-linear-gradient(90deg,#5A4632 0 6px,transparent 6px 16px);border-top:2px solid #3A3038;border-bottom:2px solid #3A3038}
.ba-landing .rail i{position:absolute;left:0;top:-2px;bottom:-2px;width:var(--p,0%);background:linear-gradient(90deg,var(--blood),var(--brass));transition:width .9s ease;opacity:.6}
.ba-landing .stops{position:relative;display:grid;grid-template-columns:repeat(6,minmax(0,1fr))}
.ba-landing .stop{display:grid;justify-items:center;gap:8px;background:none;border:0;padding:0;cursor:pointer;text-align:center}
.ba-landing .stop b{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#1A1418;border:2px solid #4A3C44;font-family:var(--old);font-size:15px;transition:.3s}
.ba-landing .stop span{font-size:12.5px;color:var(--muted);line-height:1.2;max-width:14ch}
.ba-landing .stop.is-done b{background:var(--brass);border-color:var(--brass);color:#1A1006}
.ba-landing .stop.is-cur b{border-color:var(--blood);box-shadow:0 0 0 5px rgba(200,50,63,.25);color:var(--text)}
.ba-landing .stop.is-cur span{color:var(--text)}
.ba-landing .stop:disabled{cursor:default}
.ba-landing .loco{position:absolute;top:10px;left:0;width:56px;height:36px;margin-left:-28px;transition:left .9s cubic-bezier(.4,0,.2,1);pointer-events:none}
.ba-landing .task{padding:28px 34px 34px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:30px;border-top:1px solid var(--line);min-height:330px}
.ba-landing .task__info{display:grid;gap:12px;align-content:start}
.ba-landing .task__info small{font-family:var(--old);letter-spacing:.18em;color:var(--blood);font-size:13px}
.ba-landing .task__info h3{font-size:clamp(22px,2.6vw,30px)}
.ba-landing .task__info p{margin:0;color:#CFC6BB}
.ba-landing .task__play{display:grid;gap:14px;align-content:start;animation:ba-express-rise .4s ease}
.ba-landing .task__q{font-size:17px;font-weight:600}
.ba-landing .sounds{display:flex;flex-wrap:wrap;gap:8px}
.ba-landing .sounds span{padding:8px 14px;border-radius:999px;background:#1C161B;border:1px solid var(--line);font-size:14px}
.ba-landing .sounds span::before{content:'♪ ';color:var(--brass)}
.ba-landing .opts{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.ba-landing .opt{min-height:54px;padding:10px 14px;border-radius:14px;border:1px solid var(--line);background:#17121A;cursor:pointer;font-weight:600;text-align:left;display:flex;gap:10px;align-items:center;transition:.2s}
.ba-landing .opt:hover{border-color:var(--brass)}
.ba-landing .opt i{font-style:normal;font-size:22px}
.ba-landing .opt.ok{border-color:#6FBF8A;background:rgba(111,191,138,.12)}
.ba-landing .opt.bad{border-color:var(--blood);background:rgba(200,50,63,.12);animation:ba-express-shake .4s}
.ba-landing .opt[aria-pressed="true"]{border-color:var(--brass);background:rgba(217,165,91,.14)}
@keyframes ba-express-shake{25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
.ba-landing .code{display:flex;gap:8px}
.ba-landing .code b{width:52px;height:60px;border-radius:10px;border:2px solid #4A3C44;display:grid;place-items:center;font-family:var(--old);font-size:28px;color:var(--brass);background:#120E12}
.ba-landing .fb{margin:0;min-height:1.5em;font-weight:600}
.ba-landing .fb.ok{color:#8FD6A6}
.ba-landing .fb.bad{color:#F08A92}
.ba-landing .task__next{justify-self:start}
.ba-landing .finale{padding:40px 34px;display:grid;justify-items:center;text-align:center;gap:14px;border-top:1px solid var(--line);animation:ba-express-rise .5s ease}
.ba-landing .finale h3{font-size:clamp(26px,3.4vw,40px);color:var(--brass)}
.ba-landing .finale p{margin:0;color:#CFC6BB;max-width:56ch}
.ba-landing .cards3{margin-top:36px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.ba-landing .c3{padding:26px 22px;border-radius:18px;background:var(--ink-3);border:1px solid var(--line);display:grid;gap:10px;align-content:start}
.ba-landing .c3 i{font-style:normal;font-size:30px}
.ba-landing .c3 h3{font-size:19px}
.ba-landing .c3 p{margin:0;color:#C9C3BA}
.ba-landing .c3--calm{border-color:rgba(217,165,91,.45);background:linear-gradient(160deg,#1E1712,#110D0B)}
@media (max-width:980px){.ba-landing .task{grid-template-columns:1fr}
.ba-landing .cards3{grid-template-columns:1fr}}
@media (max-width:680px){.ba-landing .hero__in{padding-block:30px 130px}
.ba-landing .line{padding:46px 10px 14px}
.ba-landing .rail{left:28px;right:28px;top:70px}
.ba-landing .stop b{width:34px;height:34px;font-size:13px}
.ba-landing .stop span{font-size:10.5px}
.ba-landing .task{padding:22px 18px 26px}
.ba-landing .route__top{padding:14px 16px}
.ba-landing .keys i{width:26px;height:26px;font-size:13px}
.ba-landing .code b{width:44px;height:52px;font-size:24px}}