/* ═══════════ update78: лендинг тренажёра — вариант L2 «Тетрадь на столе» ═══════════
   Решение владельца 03.10.2026 (холст, страница «Лендинг», доски L2_Heft и
   L2_Uebergang; эталон — design/update77/). Стол — стиль сайта
   studienkolleg-vorbereitung.de (живые tokens.css и site.css: тёмная и светлая
   тема, фиолетовая кнопка, Fraunces в заголовках, пилюля-надзаголовок). Лист
   тетради — бумага тренажёра в клетку с янтарной тенью. */
:root,[data-theme="dark"]{
  --bg:#0c0b19;--panel:#161230;--panel-hi:#1e1840;--line:#2a2352;
  --ink:#efeaf8;--soft:#bdb2d6;--mute:#8578a8;--accent:#c2a1e6;--warm:#f6c45e;
  --ashadow:rgba(124,58,237,.55);--scrim:rgba(12,11,25,.82);
  --grid:rgba(194,161,230,.075);   /* update81: клетка стола, как в тренажёре */
  --glow:radial-gradient(60vw 40vw at 85% -10%,rgba(124,58,237,.20),transparent 60%),radial-gradient(40vw 28vw at 8% 0%,rgba(232,168,56,.10),transparent 60%);
}
[data-theme="light"]{
  --bg:#faf8fd;--panel:#ffffff;--panel-hi:#f4f0fb;--line:#e9e1f4;
  --ink:#2c2338;--soft:#5b5270;--mute:#6f6683;--accent:#7c3aed;--warm:#8a5e06;
  --ashadow:rgba(124,58,237,.30);--scrim:rgba(250,248,253,.86);
  --grid:rgba(124,58,237,.085);
  --glow:radial-gradient(60vw 40vw at 85% -10%,rgba(124,58,237,.10),transparent 60%),radial-gradient(40vw 28vw at 8% 0%,rgba(232,168,56,.08),transparent 60%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'Inter',system-ui,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:0;pointer-events:none;background:var(--glow)}
/* update81 (владелец): клетка на столе — шаг 24 px, как в тренажёре. Тонкая и
   уходит в фон к краям и вниз, чтобы не спорить с листами тетради (у них своя клетка). */
body::after{content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:24px 24px;background-position:-1px -1px;
  -webkit-mask-image:radial-gradient(ellipse 85% 75% at 50% 35%,#000 35%,rgba(0,0,0,.45) 75%,rgba(0,0,0,.18) 100%);
          mask-image:radial-gradient(ellipse 85% 75% at 50% 35%,#000 35%,rgba(0,0,0,.45) 75%,rgba(0,0,0,.18) 100%)}
a{color:var(--accent)}a:hover{color:var(--ink)}
h1,h2,h3{font-family:'Fraunces',Georgia,serif;letter-spacing:-.01em;line-height:1.12;margin:0}
h1{font-weight:900;line-height:1.05}
h2{font-weight:900}
.hidden{display:none !important}
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--panel);color:var(--ink);padding:8px 14px;border-radius:10px}
.skip:focus{left:8px}
:focus-visible{outline:2px solid #a678e0;outline-offset:2px}
.wrap{position:relative;z-index:1;max-width:1180px;margin:0 auto;padding:0 24px}
.grow{flex:1}

/* шапка как на сайте */
.top{position:sticky;top:0;z-index:50;background:var(--scrim);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:14px;height:74px}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink);text-decoration:none;font-family:'Fraunces',serif;font-weight:600;font-size:1rem;line-height:1.1;flex-shrink:0}
.brand img{width:38px;height:38px;border-radius:9px;background:#f6f4fb}
.links{display:flex;gap:20px;margin-left:12px}
.links a,.home,.login{color:var(--soft);text-decoration:none;font-size:.92rem;font-weight:500;white-space:nowrap}
.links a:hover,.home:hover,.login:hover{color:var(--ink)}
.home{display:inline-flex;align-items:center;gap:7px}
.lang{display:flex;gap:2px;border:1px solid var(--line);border-radius:10px;padding:2px;background:var(--panel);flex-shrink:0}
.lang button{font:inherit;font-size:.8rem;font-weight:600;min-width:36px;min-height:32px;border:0;border-radius:8px;background:transparent;color:var(--mute);cursor:pointer}
.lang button.on{background:#7c3aed;color:#fff}
.theme-btn{display:grid;place-items:center;width:38px;height:38px;flex-shrink:0;background:var(--panel);border:1px solid var(--line);border-radius:10px;color:var(--soft);cursor:pointer}
[data-theme="dark"] .i-sun,[data-theme="light"] .i-moon{display:none}
.login{font-weight:600;color:var(--ink)}

/* кнопки сайта */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 26px;border-radius:10px;font:inherit;font-weight:600;font-size:1rem;text-decoration:none;cursor:pointer;border:1px solid transparent;white-space:nowrap;transition:background .18s,box-shadow .18s,border-color .18s,transform .1s}
.btn:active{transform:scale(.98)}
.btn-prim{background:#7c3aed;color:#fff;box-shadow:0 6px 20px -8px var(--ashadow)}
.btn-prim:hover{background:#8b4fd4;color:#fff;box-shadow:0 10px 26px -8px var(--ashadow)}
.btn-ghost{background:var(--panel);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--panel-hi);border-color:rgba(124,58,237,.35);color:var(--ink)}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);border:1px solid var(--line);border-radius:999px;padding:7px 15px}

/* первый экран */
.hero{padding:64px 0 84px;overflow:hidden}   /* скотч у листа выступает за край — без горизонтальной прокрутки */
.hero-in{display:flex;flex-wrap:wrap;gap:56px;align-items:center}
.hero-text{flex:1 1 480px;min-width:0;display:flex;flex-direction:column;gap:22px;align-items:flex-start}
.hero h1{font-size:clamp(2rem,4.2vw,3rem)}
.hero h1 em{font-style:normal;color:var(--warm)}
.lead{margin:0;font-size:1.08rem;color:var(--soft);max-width:34em}
.ctas{display:flex;flex-wrap:wrap;gap:12px}
.ctas.center{justify-content:center}
.trust{margin:0;font-size:.86rem;color:var(--mute)}
.trust b{color:var(--warm)}
.hero-sheet{flex:1 1 480px;min-width:0;padding:10px 12px 0}

/* лист тетради — бумага тренажёра */
.sheet{position:relative;background-color:#fbfaff;background-image:linear-gradient(#e7e1f3 1px,transparent 1px),linear-gradient(90deg,#e7e1f3 1px,transparent 1px);background-size:22px 22px;border:2px solid #1c1530;border-radius:6px;box-shadow:8px 9px 0 #e8a838;color:#1c1530;font-family:'Onest',sans-serif;padding:24px 22px 22px 44px;transition:transform .35s cubic-bezier(.3,1.4,.5,1)}
.sheet.tilt{transform:rotate(-3deg);padding:28px 28px 24px 48px}
.holes{position:absolute;left:11px;top:18px;bottom:18px;display:flex;flex-direction:column;justify-content:space-between;pointer-events:none}
.holes i{width:12px;height:12px;border-radius:50%;background:var(--bg);border:2px solid #1c1530}
.tape{position:absolute;left:40%;top:-14px;width:96px;height:26px;background:rgba(246,196,94,.62);border-left:2px dashed rgba(28,21,48,.18);border-right:2px dashed rgba(28,21,48,.18);transform:rotate(-3deg);pointer-events:none}
.tape.t1{left:-26px;top:-10px;transform:rotate(-24deg)}
.tape.t2{left:auto;right:-24px;top:auto;bottom:-8px;transform:rotate(-20deg)}
.sh-top{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.tag{flex:1;font-size:.75rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#5f5878}
.pts{display:inline-flex;align-items:center;justify-content:center;min-width:28px;height:26px;padding:0 8px;border-radius:999px;border:2px solid #1c1530;font-family:'Unbounded',sans-serif;font-weight:800;font-size:12px}
.p1{background:#efeafc}.p2{background:#c3b2f2}.p3{background:#9b7cee;color:#fff}.pa2{background:#d6ecff}
.task{margin:0;font-size:1.06rem;line-height:1.5;font-weight:600}
.formel{font-family:'Unbounded',sans-serif;font-weight:600;font-size:1.15rem}
.formel sup{font-size:.6em}
.opts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:16px}
.opt{display:flex;align-items:center;gap:10px;min-height:48px;padding:0 14px;border:2px solid #1c1530;border-radius:12px;background:#fff;font:inherit;font-size:1rem;font-weight:600;color:#1c1530;cursor:pointer;text-align:left}
.opt:hover{background:#f3f0fa}
.opt i{flex:none;width:24px;height:24px;border-radius:7px;border:2px solid #1c1530;display:flex;align-items:center;justify-content:center;font-style:normal;font-size:12px;font-weight:800}
.opt.ok{background:#dff3e8;border-color:#1d6b46}
.opt.no{background:#fde4e1;border-color:#b3362b}
.sh-tipp{display:flex;align-items:center;gap:10px;margin-top:14px}
.sh-tipp img{width:52px;height:52px}
.sh-tipp span{background:#fff;border:2px solid #1c1530;border-radius:12px;padding:6px 10px;font-size:.88rem;color:#3d3555}
.sh-loes,.loes{display:flex;flex-direction:column;gap:6px;margin-top:14px;font-size:.9rem;line-height:1.55;color:#3d3555}
.sh-loes b,.loes b{font-family:'Unbounded',sans-serif;font-weight:600;font-size:.95rem;color:#1d6b46}
.sh-loes b.no{color:#b3362b}

/* три листа веером */
.sec{padding:56px 0 24px}
.sec h2{font-size:clamp(1.7rem,3.3vw,2.6rem);margin-top:12px;max-width:22em}
.sub{margin:14px 0 0;color:var(--soft);max-width:44em}
.fan{display:flex;gap:0;margin-top:44px;align-items:flex-start}
.fan .sheet{flex:1 1 0;min-width:0}
.fan .f1{transform:rotate(-4deg);z-index:1}
.fan .f2{transform:rotate(1.5deg);z-index:2}
.fan .f3{transform:rotate(4deg);z-index:1}
.fan .sheet.vorn{transform:rotate(0) translateY(-8px);z-index:3}
.reveal{display:inline-flex;align-items:center;min-height:44px;padding:0 16px;margin-top:16px;border-radius:12px;border:2px solid #1c1530;background:#1c1530;color:#fff;font:inherit;font-weight:700;font-size:.88rem;cursor:pointer}
.reveal:hover{background:#2e2350}
.cloze{font-weight:500;line-height:1.95}
.luecke{display:inline-block;min-width:1.7em;border-bottom:2px solid #6a3de8;font-weight:700;color:#4a25c4;letter-spacing:.06em}
.note{margin:10px 0 0;font-size:.85rem;color:#3d3555}

/* карточки с цифрами */
.cards{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:22px;margin-top:34px}
.icard{position:relative;background:#fff;border:2px solid #1c1530;border-radius:10px;padding:26px 16px 18px;color:#1c1530;font-family:'Onest',sans-serif;box-shadow:5px 6px 0 rgba(0,0,0,.35)}
.icard:nth-child(6n+1){transform:rotate(-2deg)}.icard:nth-child(6n+2){transform:rotate(1.5deg)}.icard:nth-child(6n+3){transform:rotate(-1deg)}
.icard:nth-child(6n+4){transform:rotate(2deg)}.icard:nth-child(6n+5){transform:rotate(-1.5deg)}.icard:nth-child(6n){transform:rotate(1deg)}
.pin{position:absolute;left:50%;top:-9px;width:18px;height:18px;margin-left:-9px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#ffe2a0,#e8a838 55%,#a8701c);box-shadow:0 2px 0 rgba(0,0,0,.4)}
.icard b{display:block;font-family:'Unbounded',sans-serif;font-weight:800;font-size:1.55rem;line-height:1;font-variant-numeric:tabular-nums}
.icard span{display:block;margin-top:8px;font-size:.84rem;line-height:1.35;color:#5f5878}
.fine{margin:18px 2px 0;font-size:.8rem;color:var(--mute)}

/* закладки */
.bm{display:flex;margin-top:34px;align-items:stretch}
.bm-sheet{flex:1 1 520px;min-width:0;min-height:320px;padding:36px 40px 32px 56px}
.bm-n{display:block;font-family:'Unbounded',sans-serif;font-weight:800;font-size:3.4rem;line-height:1}
.bm-sheet h3{margin-top:14px;font-family:'Unbounded',sans-serif;font-weight:600;font-size:1.45rem;line-height:1.3;color:#1c1530}
.bm-sheet p{margin:10px 0 0;font-size:1rem;line-height:1.6;color:#3d3555;max-width:40em}
.bm-sheet .bm-s{font-size:.88rem;color:#5f5878}
.bm-tabs{flex:0 0 270px;display:flex;flex-direction:column;gap:8px;padding-top:26px}
.bm-tab{display:flex;align-items:center;min-height:48px;padding:0 16px;margin-left:6px;border:2px solid #1c1530;border-radius:0 12px 12px 0;background:#f6f4fb;font:inherit;font-weight:700;font-size:.88rem;color:#1c1530;cursor:pointer;text-align:left}
.bm-tab[aria-selected="true"]{margin-left:-2px;color:#fff}

/* билеты-цены */
.tickets{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;margin-top:34px}
.ticket{display:flex;background:#fff;border:2px solid #1c1530;border-radius:16px;overflow:hidden;box-shadow:7px 8px 0 #e8a838;color:#1c1530;font-family:'Onest',sans-serif}
.ticket.hot{box-shadow:7px 8px 0 #7c3aed}
.stub{flex:none;width:118px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;border-right:3px dashed #1c1530;padding:14px 6px;text-align:center}
.stub b{font-family:'Unbounded',sans-serif;font-size:1.3rem;font-weight:800;line-height:1.05}
.stub small{font-size:.75rem;font-weight:700}
.st-m{background:#c3b2f2}.st-c{background:#d6ecff}.st-a{background:#ffc65c}
.tk-body{flex:1;min-width:0;padding:18px 18px 18px 20px;display:flex;flex-direction:column;gap:14px}
.tk-body ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:6px;font-size:.9rem;line-height:1.4;flex:1}
.tk-body li{position:relative;padding-left:24px}
.tk-body li::before{content:"";position:absolute;left:2px;top:5px;width:12px;height:7px;border-left:2.4px solid #6a3de8;border-bottom:2.4px solid #6a3de8;transform:rotate(-45deg)}
.btn-ink{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border-radius:14px;background:#1c1530;color:#fff;box-shadow:0 4px 0 #6a3de8;font-weight:700;font-size:.95rem;text-decoration:none}
.btn-ink:hover{color:#fff;transform:translateY(2px);box-shadow:0 2px 0 #6a3de8}

/* вопросы — как на сайте */
.faq{margin-top:22px}
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:0 20px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:600;color:var(--ink);padding:16px 26px 16px 0;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:2px;top:14px;color:var(--accent);font-weight:700;font-size:1.2rem}
.faq details[open] summary::after{content:"–"}
.faq details > div{padding:0 0 18px;color:var(--soft);font-size:.96rem;line-height:1.62}
.faq details p{margin:0}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px !important}
.chips span{display:inline-flex;align-items:center;min-height:30px;padding:0 12px;border-radius:999px;border:1px solid var(--line);background:var(--bg);font-size:.82rem;font-weight:600;color:var(--ink)}

.end{padding-bottom:64px}
.foot-cta{background:var(--panel);border:1px solid rgba(124,58,237,.35);border-radius:14px;padding:40px 30px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:16px}
.foot-cta h2{margin:0;font-size:clamp(1.5rem,2.8vw,2rem);max-width:20em}
.foot-cta p{margin:0;color:var(--soft);max-width:36em}
.foot{position:relative;z-index:1;border-top:1px solid var(--line);padding:36px 0 40px;color:var(--mute);font-size:.85rem}
.foot-in{display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between}
.foot-links{display:flex;flex-wrap:wrap;gap:8px 20px}
.foot a{text-decoration:none;color:var(--accent)}

/* переход: лист разворачивается на весь экран */
.fly{position:fixed;z-index:200;background-color:#f6f4fb;background-image:linear-gradient(#e7e1f3 1px,transparent 1px),linear-gradient(90deg,#e7e1f3 1px,transparent 1px);background-size:24px 24px;border:2px solid #1c1530;animation:openUp .8s cubic-bezier(.7,0,.25,1) forwards}
@keyframes openUp{from{left:var(--fx);top:var(--fy);width:var(--fw);height:var(--fh);transform:rotate(-3deg);border-radius:6px}to{left:0;top:0;width:100vw;height:100vh;transform:none;border-radius:0}}

/* телефон и узкие экраны */
@media (max-width:980px){
  .links{display:none}
  .cards{grid-template-columns:repeat(3,minmax(0,1fr))}
  .tickets{grid-template-columns:minmax(0,1fr)}
  .fan{flex-direction:column;gap:30px}
  .fan .f1{transform:rotate(-2deg)}.fan .f2{transform:rotate(.75deg)}.fan .f3{transform:rotate(2deg)}
}
@media (max-width:640px){
  .wrap{padding:0 16px}
  .nav{gap:8px;height:64px}
  .brand span,.home span{display:none}
  .home{order:-1}
  .hero{padding:36px 0 56px}
  .hero-in{gap:40px}
  .ctas .btn{flex:1 1 100%}
  .opts{grid-template-columns:minmax(0,1fr)}
  .sheet{padding:22px 16px 18px 36px}
  .sheet.tilt{padding:22px 16px 18px 36px}
  .tape.t2{right:-8px}
  .cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 14px}
  .bm{flex-direction:column-reverse}
  .bm-tabs{flex:none;flex-direction:row;flex-wrap:wrap;padding:0 0 12px}
  .bm-tab,.bm-tab[aria-selected="true"]{margin-left:0;border-radius:12px}
  .bm-sheet{flex:none;padding:24px 18px 22px 40px;min-height:0}
  .bm-n{font-size:2.5rem}
  .stub{width:100px}
  .stub b{font-size:1.05rem}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .sheet,.btn{transition:none}
  .fly{animation:none;left:0;top:0;width:100vw;height:100vh}
}