/* Продающая страница книги (o-knige.html). Стиль «Обложка»: белая обложка как у книги,
   дальше полосы белая / песочная / ночная, карточка контрастна своей полосе. Шрифт Onest, акцент синий книги. */
:root{--ink:#0D0D0D;--paper:#fff;--muted:#5D5D5D;--line:#E6E6E6;--blue:#5484EB;--blue-ink:#2F62D6;--blue-l:#8FB0F5;
  --green:#10A37F;--night:#0B0B0C;--sand:#F4F4F2;--r:24px;--gut:clamp(20px,5vw,72px);--max:1240px;--ease:cubic-bezier(.22,.8,.2,1)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px}html,body{margin:0}
body.l-page{font:18px/1.6 Onest,system-ui,sans-serif;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}
img,video{max-width:100%}a{color:inherit}
.l-in{max-width:var(--max);margin:0 auto}
.l-logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;text-decoration:none;color:var(--ink)}
.l-logo svg{fill:currentColor;flex:none}

/* кнопки */
.l-btn{white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;min-height:56px;padding:0 28px;border-radius:999px;background:var(--ink);color:#fff;
  font-weight:600;font-size:17px;text-decoration:none;border:0;transition:transform .2s var(--ease),background .2s}
.l-btn:hover{transform:translateY(-1px);background:#2a2a2a}
.l-btn.ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--ink)}.l-btn.ghost:hover{background:rgba(0,0,0,.04)}
.l-btn.sm{min-height:44px;padding:0 20px;font-size:15px}
.night .l-btn{background:#fff;color:var(--ink)}.night .l-btn.ghost{background:transparent;color:#fff;box-shadow:inset 0 0 0 1.5px #fff}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:8px}

/* первый экран: целиком в окне, текст по центру свободной высоты */
.l-hero{min-height:100svh;display:flex;flex-direction:column;padding:22px var(--gut) clamp(16px,4vh,40px)}
.l-hero-in{flex:1;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:clamp(20px,4vw,60px);max-width:var(--max);margin:0 auto;width:100%}
.l-aud{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue-ink)}
.l-h1{font-size:min(9vw,15vh);line-height:.95;letter-spacing:-.045em;margin:clamp(10px,2vh,18px) 0 0;font-weight:700}
.l-pill{display:inline-block;background:var(--ink);color:#fff;border-radius:999px;font-weight:700;letter-spacing:-.02em;font-size:min(4.3vw,7vh);padding:.14em .6em .2em;margin-top:.12em}
.l-lead{font-size:clamp(17px,2.4vh,21px);max-width:560px;margin:clamp(14px,3vh,30px) 0 clamp(22px,3.4vh,34px)}
.l-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.l-offer{color:var(--muted);font-size:15px}
.l-hero-bunny{width:100%;max-height:74vh;object-fit:contain}

/* полосы */
.l-band{padding:clamp(64px,11vh,128px) var(--gut)}
.l-band.white{background:var(--paper)}.l-band.sand{background:var(--sand)}.l-band.night{background:var(--night);color:#fff}
.l-lbl{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue-ink)}
.night .l-lbl{color:var(--blue-l)}
.l-h2{font-size:clamp(30px,4.2vw,56px);line-height:1.06;letter-spacing:-.03em;margin:14px 0;max-width:900px;font-weight:700}
.l-sub{font-size:clamp(17px,1.5vw,19px);color:var(--muted);max-width:720px;margin:0}
.night .l-sub{color:#C9C9CF}
.l-more{font-weight:600;color:var(--blue-ink);text-decoration:none;font-size:15px}
.night .l-more{color:var(--blue-l)}

/* 01 проблемы: белые карточки на песке */
.l-pains{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:44px}
.l-pain{display:flex;flex-direction:column;background:#fff;border-radius:var(--r);padding:8px 24px 24px;text-decoration:none;color:var(--ink);transition:transform .25s var(--ease),box-shadow .25s}
.l-pain:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(0,0,0,.08)}
.l-pain-img{width:auto;max-width:62%;height:170px;object-fit:contain;align-self:center;margin:4px 0 6px}
.l-pain h3{font-size:21px;line-height:1.2;margin:0 0 8px}.l-pain p{font-size:16px;color:var(--muted);margin:0 0 12px}

/* 02 промпты */
.l-duo{display:grid;grid-template-columns:1fr;justify-items:center;gap:6px;margin:48px auto 0;max-width:880px}
.l-duo figure{width:100%}
.l-duo figure{margin:0}.l-duo figcaption{color:#C9C9CF;font-size:15px;margin-top:12px;text-align:center}
.l-shot{display:block;width:100%;height:auto;border-radius:24px;background:#fff;padding:10px}
.l-shot.white{background:#fff;padding:8px 10px}
.l-arrow{font-size:36px;line-height:1;text-align:center;color:var(--blue-l);margin:4px 0}

/* 03 как читается */
.l-read{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:end;margin-top:44px}
.l-spread{width:100%;height:auto;border-radius:18px;box-shadow:0 30px 70px rgba(0,0,0,.14);border:1px solid var(--line)}
.l-phones{display:flex;gap:14px}
.l-phones img{width:clamp(120px,13vw,190px);height:auto;border-radius:26px;border:6px solid var(--night);box-shadow:0 20px 50px rgba(0,0,0,.18)}
.l-feats{list-style:none;padding:0;margin:40px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.l-feats li{background:var(--sand);border-radius:18px;padding:18px 20px}
.l-feats b{display:block;font-size:17px;margin-bottom:4px}.l-feats span{font-size:15px;color:var(--muted)}

/* 04 главы: карусель */
#vnutri{padding-left:0;padding-right:0}#vnutri>.l-in{padding:0 var(--gut);position:relative}
.l-car-nav{display:flex;gap:10px;margin-top:22px}
.l-car-b{width:48px;height:48px;border-radius:50%;border:1.5px solid var(--ink);background:transparent;font-size:20px;cursor:pointer}
.l-car-b:hover{background:var(--ink);color:#fff}
.l-car{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-padding:0 var(--gut);padding:28px var(--gut) 12px;scrollbar-width:none}
.l-car::-webkit-scrollbar{display:none}
.l-ch{flex:0 0 clamp(250px,24vw,310px);scroll-snap-align:start;background:#fff;border-radius:var(--r);overflow:hidden;text-decoration:none;color:var(--ink);position:relative;
  transition:transform .25s var(--ease)}
.l-ch:hover{transform:translateY(-3px)}
.l-ch-img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:contain;background:#fff;padding:10px 10px 0}
.l-free{position:absolute;top:14px;left:14px;background:var(--green);color:#fff;font-size:12px;font-weight:700;border-radius:999px;padding:4px 10px}
.l-ch-t{padding:14px 20px 22px;display:flex;flex-direction:column;gap:4px}
.l-ch-n{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--blue-ink)}
.l-ch-t b{font-size:18px;line-height:1.25}.l-ch-t span:last-child{font-size:14.5px;color:var(--muted);line-height:1.45}

/* 05 задачи */
.l-tasks{display:grid;grid-template-columns:1.25fr 1fr;gap:20px;margin-top:44px}
.l-task-card{background:#fff;color:var(--ink);border-radius:var(--r);padding:26px 28px}
.l-task-card.light{background:#fff}
.l-task-img{width:46%;height:auto;float:right;margin:-6px -6px 6px 12px}
.l-task-card h3{font-size:24px;margin:4px 0 12px}
.l-task-card ol{margin:0 0 14px;padding-left:1.3em;font-size:16px;line-height:1.5}.l-task-card li{margin-bottom:5px}
.l-task-card .l-more{color:var(--blue-ink)}

/* 06, 07, финал: текст + зайчик */
.l-split{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(24px,5vw,72px);align-items:center}
.l-split.rev{grid-template-columns:.8fr 1.2fr}
.l-side-bunny,.l-side-img{width:100%;height:auto;max-height:520px;object-fit:contain}
.sand .l-side-img{mix-blend-mode:multiply}
.l-checks{list-style:none;padding:0;margin:26px 0 22px;display:grid;gap:10px}
.l-checks li{padding-left:34px;position:relative;font-size:18px}
.l-checks li::before{content:"";position:absolute;left:0;top:3px;width:22px;height:22px;border-radius:50%;background:var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l4 4 8-9' fill='none' stroke='white' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat}
.l-chip{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);background:var(--sand);border-radius:999px;padding:6px 14px}
.l-chip i{width:8px;height:8px;border-radius:50%;background:var(--green)}
.l-fmt-row{display:grid;grid-template-columns:minmax(200px,.7fr) 2fr;gap:clamp(20px,4vw,56px);align-items:center;margin-top:40px}
.l-fmt-bunny{width:100%;height:auto;max-height:380px;object-fit:contain}
.l-fmts{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.l-fmt{background:#fff;border-radius:18px;padding:16px 20px}.l-fmt b{display:block;font-size:18px}.l-fmt span{font-size:15px;color:var(--muted)}
.l-fmt:first-child{grid-column:1/-1;background:var(--ink);color:#fff}.l-fmt:first-child span{color:#C9C9CF}

/* 08 автор */
.l-author{display:grid;grid-template-columns:auto 1fr;gap:clamp(24px,5vw,64px);align-items:center}
.l-photo{width:clamp(180px,24vw,320px);height:auto;aspect-ratio:1;object-fit:cover;border-radius:50%}
.l-role{font-size:19px;margin:0 0 12px}.l-link{display:inline-block;margin-top:18px;font-weight:600;color:var(--blue-l);text-decoration:none}

/* 09 цена: таблица, платный столбец с подложкой и линией сверху */
.l-price{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;margin-top:40px}
.l-tbl{width:100%;border-collapse:separate;border-spacing:0;font-size:16.5px}
.l-tbl th,.l-tbl td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
.l-tbl thead th{font-size:15px;color:var(--muted);font-weight:600}
.l-tbl th[scope=row]{font-weight:500}
.l-tbl .on{background:var(--sand);font-weight:700}
.l-tbl thead .on{color:var(--ink);border-top:3px solid var(--ink);border-radius:16px 16px 0 0}
.l-tbl tfoot td{border-bottom:0;padding-top:18px}.l-tbl tfoot .on{border-radius:0 0 16px 16px;padding-bottom:18px}
.l-no{color:#B0B0B0}
.l-price-bunny{width:clamp(160px,18vw,260px);height:auto}
.l-note{color:var(--muted);font-size:15px;margin-top:22px;max-width:720px}
.l-price-mob{display:none}

/* 10 вопросы */
.l-narrow{max-width:860px}
.l-qa{background:#fff;border-radius:18px;margin-top:12px}
.l-qa summary{list-style:none;cursor:pointer;padding:20px 56px 20px 24px;font-weight:600;font-size:18px;position:relative}
.l-qa summary::-webkit-details-marker{display:none}
.l-qa summary::after{content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);font-size:26px;font-weight:400;transition:transform .2s}
.l-qa[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.l-qa p{margin:0;padding:0 24px 22px;color:var(--muted);font-size:16.5px}
.l-final .l-h2{margin-top:0}

/* шапка после первого экрана, кнопка снизу на телефоне */
.l-bar{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;gap:18px;padding:10px var(--gut);background:rgba(255,255,255,.92);
  backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line);transform:translateY(-100%);transition:transform .3s var(--ease)}
.l-bar.show{transform:none}.l-bar-sp{flex:1}.l-bar-link{text-decoration:none;font-size:15px;color:var(--muted)}.l-bar-link:hover{color:var(--ink)}
.l-mob-cta{display:none}

.l-foot{background:var(--night);color:#C9C9CF;padding:48px var(--gut) 56px;font-size:15px}
.l-foot-in{display:grid;grid-template-columns:1fr 1fr 1.4fr;gap:30px}
.l-foot b{display:block;color:#fff;margin-bottom:8px}.l-foot a,.l-foot span{display:block;color:#C9C9CF;text-decoration:none;margin-bottom:6px}.l-foot a:hover{color:#fff}

/* появление блоков */
.l-rv{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}.l-rv.in{opacity:1;transform:none}

@media (max-width:1100px){.l-hero-in{grid-template-columns:1.35fr .65fr}}
@media (max-width:860px){.l-pains{grid-template-columns:1fr 1fr}
  .l-hero{min-height:auto}.l-hero-in{grid-template-columns:1fr;gap:6px}.l-hero-bunny{order:-1;max-height:36vh}
  .l-split,.l-split.rev,.l-fmt-row{grid-template-columns:1fr}.l-side-bunny,.l-side-img{max-height:320px}.l-fmt-bunny{max-height:240px}
  .l-price{grid-template-columns:1fr}.l-price-bunny{display:none}}
@media (max-width:1000px){
  .l-task-img{width:34%}.l-feats{grid-template-columns:1fr 1fr}.l-tasks{grid-template-columns:1fr}
  .l-read{grid-template-columns:1fr}.l-phones{justify-content:center}
}
@media (max-width:760px){
  body.l-page{font-size:17px}
  .l-hero{min-height:auto}
  .l-hero-in{grid-template-columns:1fr;gap:6px}.l-hero-bunny{order:-1;max-height:34vh}
  .l-h1{font-size:19vw}.l-pill{font-size:8.6vw}
  .l-cta .l-btn{width:100%}
  .l-pains,.l-feats,.l-fmts{grid-template-columns:1fr}
  .l-pain{flex-direction:row;align-items:center;gap:14px;padding:16px}.l-pain-img{width:96px;margin:0}
  .l-pain h3{font-size:18px}.l-pain p{font-size:15px}
  .l-split,.l-split.rev,.l-author,.l-price{grid-template-columns:1fr}
  .l-side-bunny,.l-side-img{max-height:300px}
  .l-author{text-align:center}.l-photo{margin:0 auto;width:200px}
  .l-price-bunny{display:none}.l-tbl tfoot{display:none}.l-price-mob{display:grid;gap:10px;margin-top:22px}
  .l-tbl{font-size:15px}.l-tbl th,.l-tbl td{padding:12px 10px}
  .l-task-img{width:40%}
  .l-bar{display:none}
  .l-mob-cta{display:flex;position:fixed;left:16px;right:16px;bottom:calc(14px + env(safe-area-inset-bottom));z-index:50;min-height:54px;align-items:center;justify-content:center;
    border-radius:999px;background:var(--ink);color:#fff;font-weight:600;text-decoration:none;box-shadow:0 10px 30px rgba(0,0,0,.25);transform:translateY(160%);transition:transform .3s var(--ease)}
  .l-mob-cta.show{transform:none}
  .l-foot{padding-bottom:110px}.l-foot-in{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}.l-rv{opacity:1;transform:none}}

/* ритм: заголовок, подводка, дальше блок; кнопки никогда не прилипают к тексту */
.l-sub+.l-cta,.l-h2+.l-cta{margin-top:30px}
.l-final .l-cta{margin-top:30px}
.l-lead+.l-cta{margin-top:0}
.l-cta{row-gap:12px;column-gap:14px}
@media (max-width:760px){.l-fmt-row{grid-template-columns:1fr}.l-fmt-bunny{max-height:220px}}