:root{
  --ink:#14161a; --ink2:#1d2026; --ink3:#272b33;
  --amber:#e3a03a; --amber2:#f2c06d; --amber-soft:#f7e7c9; --amber-ink:#8a5a12;
  --paper:#f4f0e8; --paper2:#ebe5d9; --white:#fffdf9;
  --text:#1c1e22; --muted:#6a6f7a; --line:#ddd5c6; --line-d:#343944;
  --green:#3f7d4e; --green-soft:#e1ecdf;
  --serif:'Lora',Georgia,serif; --sans:'Inter',system-ui,-apple-system,'Segoe UI',Arial,sans-serif;
  --wrap:1200px; --gut:24px;
  color-scheme:light;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{background:var(--paper);color:var(--text);font:16px/1.55 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.serif{font-family:var(--serif)}
h1,h2,h3{font-family:var(--serif);font-weight:700;letter-spacing:-.01em;line-height:1.12}
.kicker{font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;color:var(--amber-ink)}
.dark .kicker,.kicker.on-dark{color:var(--amber)}
.muted{color:var(--muted)}

/* header */
.hdr{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--ink);color:#ece7dd;border-bottom:1px solid var(--line-d)}
.hdr .wrap{height:68px;display:flex;align-items:center;gap:32px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.01em;white-space:nowrap}
.logo b{display:inline-flex;width:30px;height:30px;border-radius:7px;background:var(--amber);color:var(--ink);align-items:center;justify-content:center;font-family:var(--serif);font-size:18px}
.logo em{font-style:normal;color:var(--amber)}
.nav{display:flex;gap:26px;font-size:14.5px}
.nav a{opacity:.8}.nav a:hover,.nav a.on{opacity:1}
.nav a.on{color:var(--amber)}
.hdr .right{margin-left:auto;display:flex;align-items:center;gap:12px}
.burger{display:none;background:none;border:0;color:inherit;width:40px;height:40px;cursor:pointer}
.burger span{display:block;width:22px;height:2px;background:currentColor;margin:5px auto}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:9px;font-weight:600;font-size:15px;white-space:nowrap;border:0;cursor:pointer;font-family:inherit;transition:filter .15s,transform .15s}
.btn:hover{filter:brightness(1.06)}
.btn:active{transform:translateY(1px)}
.btn.sm{min-height:38px;padding:0 16px;font-size:14px}
.btn.lg{min-height:54px;font-size:16px;padding:0 28px}
.btn.amber{background:var(--amber);color:var(--ink)}
.btn.dark{background:var(--ink);color:#fff}
.btn.ghost{background:transparent;color:inherit;box-shadow:inset 0 0 0 1.5px currentColor}
.btn.green{background:var(--green);color:#fff}
.btn.block{width:100%}
.btn:focus-visible,a:focus-visible{outline:3px solid var(--amber);outline-offset:2px}

.tag{display:inline-block;font-size:11.5px;font-weight:600;padding:4px 9px;border-radius:5px;background:var(--paper2);color:#545964;letter-spacing:.02em;line-height:1.3}
.tag.a{background:var(--amber-soft);color:var(--amber-ink)}
.tag.g{background:var(--green-soft);color:#2e6a3b}
.tags{display:flex;flex-wrap:wrap;gap:6px}

/* sections */
.sec{padding:72px 0}
.sec-title{font-size:clamp(28px,3.4vw,38px)}
.sec-sub{font-size:16.5px;color:var(--muted);margin-top:10px;max-width:720px}
.head-row{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap}

/* hero */
.hero{background:var(--ink);color:#ece7dd;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;inset:0;background:radial-gradient(620px 400px at 82% 42%,rgba(227,160,58,.16),transparent 70%);pointer-events:none}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;padding-top:72px;padding-bottom:80px;position:relative;z-index:1}
.hero h1{font-size:clamp(36px,5vw,58px);line-height:1.05;margin-top:16px}
.hero h1 em{font-style:normal;color:var(--amber)}
.hero p.lead{font-size:18px;color:#b9bdc4;margin-top:22px;max-width:560px}
.hero .cta{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.facts{display:flex;gap:36px;margin-top:44px;padding-top:22px;border-top:1px solid var(--line-d);flex-wrap:wrap}
.facts b{display:block;font-family:var(--serif);font-size:30px;color:#fff;line-height:1.1}
.facts span{font-size:13px;color:#8d929b}
.stack{position:relative;min-height:440px}
.stack .cover{position:absolute;width:230px;height:300px;box-shadow:0 24px 50px rgba(0,0,0,.5)}
.stack .cover .cn{font-size:22px}

/* covers */
.cover{border-radius:10px;position:relative;overflow:hidden;color:#f1ece2;padding:18px;display:flex;flex-direction:column;justify-content:space-between;isolation:isolate}
.cover:before{content:"";position:absolute;inset:0;z-index:-1;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:22px 22px}
.cover .ct{font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--amber2);font-weight:600}
.cover .cl{height:3px;width:42px;background:var(--amber);margin-bottom:12px}
.cover .cn{font-family:var(--serif);font-weight:700;line-height:1.14;font-size:21px}
.cv1{background:linear-gradient(150deg,#1d2026,#2c3038)}
.cv2{background:linear-gradient(150deg,#3b2a16,#1d2026)}
.cv3{background:linear-gradient(150deg,#1f3a2c,#15191a)}
.cv3 .ct{color:#9ed3ad}.cv3 .cl{background:#7cc492}
.cv4{background:linear-gradient(150deg,#2a2233,#16171b)}
.cv5{background:linear-gradient(150deg,#e3a03a,#b9741b);color:var(--ink)}
.cv5:before{background-image:linear-gradient(rgba(0,0,0,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,.05) 1px,transparent 1px)}
.cv5 .ct{color:#3a2508}.cv5 .cl{background:var(--ink)}

/* cards */
.grid{display:grid;gap:18px}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{background:var(--white);border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s}
a.card:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(40,30,10,.10)}
.card .cover{height:180px;border-radius:0}
.card .body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card .nm{font-weight:700;font-size:16.5px;line-height:1.3}
.card .ds{font-size:14px;color:var(--muted);line-height:1.5}
.card .ft{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:8px}
.price{font-weight:800;font-size:20px;letter-spacing:-.01em;white-space:nowrap}
.price small{font-weight:500;font-size:13px;color:var(--muted)}
.price.free{color:var(--green)}
.more{font-size:14px;font-weight:700;color:var(--amber-ink);white-space:nowrap}

/* tasks */
.task{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:22px;display:flex;flex-direction:column;gap:8px;min-height:150px;transition:border-color .15s}
.task:hover{border-color:var(--amber)}
.task .q{font-family:var(--serif);font-size:20px;font-weight:700;line-height:1.25}
.task .a{font-size:14px;color:var(--muted)}
.task .go{margin-top:auto;font-size:14px;font-weight:700;color:var(--amber-ink)}
.task.dark{background:var(--ink);color:#ece7dd;border-color:var(--ink)}
.task.dark .a{color:#9ea3ab}.task.dark .go{color:var(--amber)}

/* free band */
.freeband{background:var(--green-soft);border-radius:16px;padding:40px;display:grid;grid-template-columns:1fr 1.3fr;gap:36px;align-items:center}
.freeband .list{display:grid;gap:10px}
.freeband .list a{display:flex;align-items:center;gap:14px;background:#fff;border-radius:10px;padding:14px 16px;border:1px solid #cfe0cc}
.freeband .list a:hover{border-color:var(--green)}
.freeband .list b{font-size:15.5px;display:block}
.freeband .list span{font-size:13px;color:var(--muted)}
.freeband .list i{margin-left:auto;font-style:normal;color:var(--green);font-weight:800}
.num-dot{flex:none;width:30px;height:30px;border-radius:50%;background:var(--green);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:14px}

/* course promo */
.promo{background:var(--ink);color:#ece7dd;border-radius:16px;padding:44px;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.promo h2{color:#fff;font-size:clamp(28px,3.4vw,40px);margin-top:12px}
.promo p{color:#a9adb5;margin-top:14px;font-size:16px}
.promo .stats{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.promo .stats div{background:var(--ink3);border-radius:10px;padding:16px}
.promo .stats b{display:block;font-family:var(--serif);font-size:28px;color:#fff;line-height:1.1}
.promo .stats span{font-size:13px;color:#9ea3ab}

/* author */
.author{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.author .wrap{display:grid;grid-template-columns:320px 1fr;gap:48px;align-items:center}
.ph{background:repeating-linear-gradient(45deg,#ddd5c6 0 10px,#e6dfd2 10px 20px);border-radius:12px;display:flex;align-items:center;justify-content:center;color:#6f6656;font-size:13px;font-weight:600;text-align:center;padding:10px;min-height:360px}
.creds{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:24px}
.creds div{border-left:3px solid var(--amber);padding:2px 0 2px 14px}
.creds b{font-size:15px;display:block}
.creds span{font-size:13.5px;color:var(--muted)}

.how{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:30px;border-top:1px solid var(--line);padding-top:24px}
.how .n{font-family:var(--serif);font-size:42px;color:var(--amber);font-weight:700;line-height:1}
.how b{display:block;margin-top:10px;font-size:16px}
.how span{font-size:14px;color:var(--muted);display:block;margin-top:4px}

/* footer */
.ftr{background:var(--ink);color:#a9adb5;font-size:13.5px;line-height:1.9}
.ftr .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-top:44px;padding-bottom:44px}
.ftr h4{color:#ece7dd;font-size:14px;margin-bottom:6px;font-family:var(--sans)}
.ftr a:hover{color:#fff}
.ftr .copy{border-top:1px solid var(--line-d);padding:16px 0;font-size:12.5px;color:#7d828c}

/* catalog */
.pagehead{background:var(--white);border-bottom:1px solid var(--line);padding:40px 0 28px}
.crumbs{font-size:13px;color:var(--muted)}
.crumbs a:hover{color:var(--text)}
.pagehead h1{font-size:clamp(30px,4vw,44px);margin-top:10px}
.chips{display:flex;gap:8px;margin-top:20px;flex-wrap:wrap}
.chip{min-height:38px;display:inline-flex;align-items:center;padding:0 15px;border-radius:20px;border:1px solid var(--line);font-size:14px;font-weight:500;background:var(--paper);cursor:pointer;font-family:inherit;color:inherit}
.chip small{margin-left:6px;opacity:.55}
.chip[aria-pressed="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}
.cat-layout{display:grid;grid-template-columns:230px 1fr;gap:36px;padding:32px 0 72px}
.side h4{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:22px 0 8px;font-family:var(--sans)}
.side h4:first-child{margin-top:0}
.side label{display:flex;align-items:center;gap:10px;font-size:14.5px;padding:6px 0;cursor:pointer}
.side input{width:17px;height:17px;accent-color:var(--amber)}
.side label span{margin-left:auto;color:var(--muted);font-size:12.5px}
.side .help{margin-top:26px;background:var(--amber-soft);border-radius:10px;padding:16px;font-size:13.5px;line-height:1.45}
.side .help b{display:block;margin-bottom:6px}
.side .help a{display:inline-block;margin-top:10px;font-weight:700;color:var(--amber-ink)}
.bar2{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;font-size:14px;color:var(--muted);gap:12px}
.bar2 b{color:var(--text)}
.empty{padding:40px;text-align:center;color:var(--muted);background:var(--white);border:1px dashed var(--line);border-radius:12px}

/* product */
.ptop{background:var(--white);border-bottom:1px solid var(--line)}
.ptop .wrap{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:48px;padding-top:36px;padding-bottom:52px}
.ptop h1{font-size:clamp(30px,4vw,44px);margin-top:14px}
.ptop .lead{font-size:17.5px;color:#454a53;margin-top:16px}
.buy{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:24px;align-self:start;position:sticky;top:88px}
.buy .cover{height:230px}
.buy .cover .cn{font-size:28px}
.buy .pr{display:flex;align-items:baseline;gap:10px;margin-top:20px;flex-wrap:wrap}
.buy .pr b{font-size:34px;font-weight:800;letter-spacing:-.02em}
.buy .pr span{color:var(--muted);font-size:14px}
.buy .btn{margin-top:14px}
.checks{list-style:none;margin-top:16px;font-size:14px;color:#4c515b}
.checks li{padding:8px 0 8px 26px;position:relative;border-top:1px solid var(--line)}
.checks li:before{content:"✓";position:absolute;left:3px;color:var(--green);font-weight:800}
.buy .alt{margin-top:12px;font-size:13.5px;color:var(--muted)}
.buy .alt a{font-weight:700;color:var(--amber-ink)}
.blocks{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.blk{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:24px}
.blk h3{font-size:19px;margin-bottom:12px}
.dots{list-style:none}
.dots li{font-size:14.5px;padding:6px 0 6px 18px;position:relative}
.dots li:before{content:"";position:absolute;left:0;top:15px;width:7px;height:7px;border-radius:2px;background:var(--amber)}
.program{display:grid;gap:12px}
.mod{background:var(--white);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.mod summary{list-style:none;cursor:pointer;padding:18px 22px;display:flex;align-items:center;gap:16px}
.mod summary::-webkit-details-marker{display:none}
.mod summary .mn{font-family:var(--serif);font-weight:700;font-size:28px;color:var(--amber);width:34px;flex:none}
.mod summary b{font-size:17px}
.mod summary .mm{margin-left:auto;font-size:13px;color:var(--muted);white-space:nowrap}
.mod summary:after{content:"+";font-size:22px;color:var(--muted);margin-left:10px}
.mod[open] summary:after{content:"−"}
.lessons{border-top:1px solid var(--line)}
.ls{display:grid;grid-template-columns:52px minmax(0,1fr) auto;gap:14px;padding:12px 22px;border-top:1px solid var(--paper2);align-items:baseline;font-size:14.5px}
.ls:first-child{border-top:0}
.ls .no{font-variant-numeric:tabular-nums;color:var(--muted);font-size:13px}
.ls small{display:block;color:var(--muted);font-size:13px;margin-top:2px}
.ls .meta{font-size:12.5px;color:var(--muted);white-space:nowrap}
.ls a.free{color:var(--green);font-weight:700}
.tariffs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.tariff{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:26px;display:flex;flex-direction:column;gap:12px}
.tariff.feat{border:2px solid var(--amber);box-shadow:0 12px 30px rgba(227,160,58,.18)}
.tariff h3{font-size:22px}
.tariff .p{font-size:32px;font-weight:800;letter-spacing:-.02em}
.tariff .checks{margin-top:0}
.tariff .btn{margin-top:auto}
.note-line{font-size:13px;color:var(--muted);margin-top:14px}
.related{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.mini{display:flex;gap:14px;background:var(--white);border:1px solid var(--line);border-radius:10px;padding:12px;align-items:center}
.mini:hover{border-color:var(--amber)}
.mini .cover{width:64px;height:82px;padding:8px;border-radius:6px;flex:none}
.mini .cover .ct{font-size:7px;letter-spacing:.1em}
.mini .cover .cl{width:20px;margin:0}
.mini .cover .cn{display:none}
.mini b{font-size:14px;line-height:1.3;display:block}
.mini span{font-size:14px;font-weight:800;margin-top:6px;display:block}

/* tool page */
.toolwrap{max-width:900px;margin:0 auto;padding:28px var(--gut) 40px}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:18px}
.toolbar .st{font-size:14px;color:var(--muted)}
.toolbar .st b{color:var(--text)}
.engine-host{
  --bg:var(--paper); --paper:#fffdf9; --ink:#1c1e22; --muted:#6a6f7a; --line:#ddd5c6; --soft:#f6f2ea;
  --accent:#c9861f; --accent-ink:#14161a; --accent-soft:#f7e7c9;
  --f-body:'Inter',system-ui,sans-serif; --f-display:'Lora',Georgia,serif; --f-num:'Inter',system-ui,sans-serif;
  display:block;min-height:300px}
.cta-band{background:var(--ink);color:#ece7dd;border-radius:14px;padding:28px 30px;display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-top:28px}
.cta-band b{font-family:var(--serif);font-size:22px;color:#fff;display:block}
.cta-band span{color:#a9adb5;font-size:14.5px}
.privacy-note{font-size:13px;color:var(--muted);margin-top:8px}

/* thank you / docs */
.narrow{max-width:760px;margin:0 auto;padding:56px var(--gut) 80px}
.narrow h1{font-size:clamp(30px,4vw,42px)}
.narrow p,.narrow li{font-size:16px;margin-top:12px}
.narrow ol,.narrow ul{padding-left:22px}
.okmark{width:72px;height:72px;border-radius:50%;background:var(--green);color:#fff;font-size:36px;display:flex;align-items:center;justify-content:center;margin-bottom:22px}
.draft{background:var(--amber-soft);border-radius:10px;padding:14px 16px;font-size:14px;margin:18px 0}

.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:14px 18px;border-radius:10px;font-size:14.5px;box-shadow:0 10px 30px rgba(0,0,0,.3);opacity:0;pointer-events:none;transition:.2s;z-index:50;max-width:calc(100vw - 32px)}
.toast.on{opacity:1;transform:translateX(-50%)}

/* responsive */
@media (max-width:1060px){
  .g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero .wrap{grid-template-columns:1fr}
  .stack{display:none}
  .ptop .wrap{grid-template-columns:1fr}
  .buy{position:static}
  .promo,.freeband{grid-template-columns:1fr}
  .nav{gap:18px}
}
@media (max-width:860px){
  :root{--gut:16px}
  .nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--ink);flex-direction:column;gap:0;padding:8px 16px 16px;border-bottom:1px solid var(--line-d)}
  .nav.open{display:flex}
  .nav a{padding:12px 0;border-bottom:1px solid var(--line-d)}
  .burger{display:block}
  .hdr .right .btn{display:none}
  .g3,.blocks,.related,.tariffs{grid-template-columns:1fr}
  .cat-layout{grid-template-columns:1fr}
  .side{display:none}
  .author .wrap{grid-template-columns:1fr}
  .ph{min-height:220px}
  .how{grid-template-columns:1fr 1fr}
  .ftr .wrap{grid-template-columns:1fr 1fr}
  .sec{padding:52px 0}
  .promo,.freeband{padding:26px}
  .creds{grid-template-columns:1fr}
}
@media (max-width:560px){
  .g4,.g2{grid-template-columns:1fr}
  .how{grid-template-columns:1fr}
  .ls{grid-template-columns:40px minmax(0,1fr)}
  .ls .meta{grid-column:2}
  .mod summary .mm{display:none}
  .promo .stats{grid-template-columns:1fr 1fr}
  .buy-sticky{position:fixed;left:0;right:0;bottom:0;background:var(--white);border-top:1px solid var(--line);padding:10px 16px calc(10px + env(safe-area-inset-bottom));display:flex;align-items:center;gap:12px;z-index:30}
  .buy-sticky b{font-size:20px;font-weight:800}
  .buy-sticky .btn{flex:1}
  body.has-sticky{padding-bottom:76px}
}
@media (min-width:561px){.buy-sticky{display:none}}
[id]{scroll-margin-top:84px}

/* ---------- собственные калькуляторы ---------- */
.calc-wrap{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:28px;align-items:start}
.calc-form{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:18px;position:sticky;top:88px}
.calc-form fieldset{border:0;padding:0;margin:0 0 14px}
.calc-form legend{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:6px}
.calc-form label{display:block;padding:7px 0;border-top:1px solid var(--paper2);font-size:14px}
.calc-form label>span:first-child{display:block;margin-bottom:5px;line-height:1.35}
.calc-form .in{display:flex;align-items:center;gap:8px}
.calc-form input{flex:1;min-width:0;font:inherit;font-size:16px;font-weight:600;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;text-align:right;font-variant-numeric:tabular-nums}
.calc-form input:focus{outline:2px solid var(--amber);border-color:var(--amber)}
.calc-form em{font-style:normal;color:var(--muted);font-size:13px;min-width:30px}
.calc-out{display:grid;gap:16px;min-width:0}
.kpis{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.kpi{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:14px}
.kpi.main{background:var(--ink);color:#fff;border-color:var(--ink)}
.kpi span{display:block;font-size:12.5px;color:var(--muted)}
.kpi.main span,.kpi.main small{color:#a9adb5}
.kpi b{display:block;font-size:24px;font-weight:800;letter-spacing:-.01em;margin-top:4px;font-variant-numeric:tabular-nums}
.kpi small{display:block;font-size:12px;color:var(--muted);margin-top:2px}
.calc-note{font-size:14px;color:#4c515b;background:var(--amber-soft);border-radius:10px;padding:12px 14px}
.calc-split{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:20px}
.calc-split h4{font-size:14px;margin-bottom:8px;font-family:var(--sans)}
.calc-out .big{font-size:28px;font-weight:800}
.tbl{overflow-x:auto}
.tbl table{width:100%;border-collapse:collapse;font-size:14px;background:var(--white);border-radius:10px;overflow:hidden}
.tbl th,.tbl td{padding:9px 10px;border-bottom:1px solid var(--paper2);text-align:left;vertical-align:top}
.tbl th{font-size:12.5px;color:var(--muted);font-weight:600;background:var(--paper2)}
.tbl .r{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.tbl tr.hl td{background:var(--amber-soft);font-weight:700}
.tbl tr.total td{font-weight:800;border-top:2px solid var(--text)}
.bad{color:#b3402f}.good{color:var(--green)}
.calc-actions{padding-top:6px}
.explain{max-width:760px;margin-top:40px}
.explain h2{font-size:26px;margin:28px 0 10px}
.explain p,.explain li{font-size:16px;margin-top:8px}
.explain ul,.explain ol{padding-left:22px}

/* ---------- статьи ---------- */
.article{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;padding:40px 0 72px}
.prose{max-width:720px;font-size:17px;line-height:1.65}
.prose .lead{font-size:19px;color:#3c4048}
.prose h2{font-size:27px;margin:36px 0 12px}
.prose p{margin-top:12px}
.prose ul,.prose ol{padding-left:24px;margin-top:10px}
.prose li{margin-top:6px}
.prose a{color:var(--amber-ink);text-decoration:underline;text-underline-offset:2px}
.prose .formula{background:var(--ink);color:#fff;border-radius:10px;padding:16px 18px;font-weight:600;margin-top:14px}
.prose .callout{background:var(--amber-soft);border-radius:10px;padding:14px 16px;font-weight:500}
.prose .tbl{margin-top:14px}
.aside-cta{position:sticky;top:88px;align-self:start;display:grid;gap:14px}
.aside-cta .box{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:18px}
.aside-cta .box.dark{background:var(--ink);color:#ece7dd;border-color:var(--ink)}
.aside-cta b{display:block;font-family:var(--serif);font-size:19px;line-height:1.25}
.aside-cta p{font-size:14px;color:var(--muted);margin:6px 0 12px}
.aside-cta .dark p{color:#a9adb5}

/* ---------- бланки ---------- */
.tpl{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:44px;padding:40px 0 64px;align-items:start}
.tpl-prev{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:14px;box-shadow:0 14px 30px rgba(40,30,10,.08)}
.tpl-prev img{display:block;width:100%;border:1px solid var(--paper2)}
.dl{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}

/* ---------- курс: целиком или по блокам ---------- */
.buyopts{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:22px;align-items:start}
.blist{background:var(--white);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.brow{display:grid;grid-template-columns:44px minmax(0,1fr) auto auto;gap:14px;align-items:center;padding:16px 18px;border-top:1px solid var(--paper2)}
.brow:first-child{border-top:0}
.brow .bn{font-family:var(--serif);font-size:26px;font-weight:700;color:var(--amber)}
.brow b{display:block;font-size:16px}
.brow small{display:block;color:var(--muted);font-size:13px;margin-top:2px}
.brow .price{font-size:18px}
.whole{background:var(--ink);color:#ece7dd;border-radius:14px;padding:26px;position:sticky;top:88px}
.whole h3{color:#fff;font-size:26px}
.whole .p{font-size:40px;font-weight:800;color:#fff;margin-top:12px;letter-spacing:-.02em}
.whole .p s{font-size:18px;color:#7d828c;font-weight:500;margin-left:8px}
.whole .save{display:inline-block;background:var(--amber);color:var(--ink);font-weight:700;font-size:13px;border-radius:6px;padding:4px 8px;margin-top:8px}
.whole .checks{color:#c9ccd1}.whole .checks li{border-color:var(--line-d)}
.whole .btn{margin-top:18px}

/* ---------- кабинет ---------- */
.kb{display:grid;grid-template-columns:300px minmax(0,1fr);gap:0;min-height:calc(100vh - 68px)}
.kb-side{background:var(--ink);color:#e6e1d7;padding:18px 12px 40px;border-right:1px solid var(--line-d)}
.kb-side nav{display:grid;gap:2px}
.kb-l{display:grid;grid-template-columns:34px minmax(0,1fr) auto;gap:6px;padding:8px 10px;border-radius:8px;font-size:14px;line-height:1.3}
.kb-l:hover{background:var(--ink3)}
.kb-l[aria-current="true"]{background:var(--amber);color:var(--ink);font-weight:600}
.kb-l .no{opacity:.65;font-size:12.5px;padding-top:1px;font-variant-numeric:tabular-nums}
.kb-l.locked{color:#8d929b}
.kb-l i{font-style:normal;font-size:12px}
.kb-mod{margin-top:12px}
.kb-mh{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 10px;font-size:12.5px;letter-spacing:.02em;color:#c9ccd1}
.kb-mh b{font-weight:600}
.kb-buy{background:transparent;border:1px solid var(--amber);color:var(--amber);border-radius:6px;font:inherit;font-size:12px;font-weight:700;padding:3px 8px;cursor:pointer;white-space:nowrap}
.kb-ok{color:#9ed3ad;font-size:12px;white-space:nowrap}
.kb-all{margin-top:18px;background:var(--ink3);border-radius:10px;padding:14px;display:grid;gap:4px}
.kb-all span{font-size:12.5px;color:#9ea3ab}
.kb-all .btn{margin-top:8px}
.kb-main{padding:24px 28px 80px;min-width:0}
.kb-main .inner{max-width:900px;margin:0 auto}
.kb-who{display:flex;gap:12px;justify-content:flex-end;align-items:center;font-size:13.5px;color:var(--muted);flex-wrap:wrap}
.kb-who a{color:var(--amber-ink);font-weight:700}
.kb-main h1{font-size:clamp(26px,3.4vw,34px);margin-top:10px}
.kb-meta{color:var(--muted);font-size:14px;margin:6px 0 18px}
.kb-lock{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:26px}
.kb-lock h3{font-size:22px}
.kb-lock p{margin-top:10px;color:#4c515b}
.kb-lock-btns{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.kb-toggle{display:none}
.wait{display:flex;gap:14px;align-items:center;margin-top:20px}
.spin{width:28px;height:28px;border-radius:50%;border:3px solid var(--paper2);border-top-color:var(--amber);animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.spin{animation:none}}
.form-inline{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.form-inline input{flex:1;min-width:220px;font:inherit;font-size:16px;padding:12px 14px;border:1px solid var(--line);border-radius:9px;background:#fff}

@media (max-width:1060px){
  .article,.tpl,.buyopts{grid-template-columns:1fr}
  .aside-cta,.whole{position:static}
  .calc-wrap{grid-template-columns:1fr}
  .calc-form{position:static}
}
@media (max-width:860px){
  .kb{grid-template-columns:1fr}
  .kb-side{padding:10px 12px}
  .kb-side nav{display:none}
  .kb-side.open nav{display:grid}
  .kb-toggle{display:inline-flex}
  .kb-main{padding:18px 16px 60px}
  .kpis{grid-template-columns:1fr 1fr}
  .kpi.main{grid-column:span 2}
  .calc-split{grid-template-columns:1fr}
  .brow{grid-template-columns:34px minmax(0,1fr);}
  .brow .price,.brow .btn{grid-column:2}
}
.kb-l.locked[aria-current="true"]{color:var(--ink)}

.prose a.btn{text-decoration:none;color:inherit}.prose a.btn.amber{color:var(--ink)}

.linkbox{background:var(--amber-soft);border-radius:12px;padding:16px 18px;margin:18px 0;font-size:15px}
.copyrow{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.copyrow input{flex:1;min-width:0;font:inherit;font-size:14px;padding:10px 12px;border:1px solid #e3cb9c;border-radius:8px;background:#fff}
.narrow.prose h1{font-family:var(--serif);font-size:clamp(28px,4vw,38px);margin-bottom:12px}
.narrow.prose p,.narrow.prose li{font-size:16px}
[hidden]{display:none!important}