/* Общая типографика контентных страниц. Лендинг (index.html) держит свои стили инлайном. */
/* Onest, variable 400–800, лежит в fonts/ рядом с сайтом; latin-ext нужен ради знака ₽ */
@font-face { font-family: 'Onest'; font-style: normal; font-weight: 400 800; font-display: swap; src: url('fonts/onest-cyrillic.woff2') format('woff2'); unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116; }
@font-face { font-family: 'Onest'; font-style: normal; font-weight: 400 800; font-display: swap; src: url('fonts/onest-latin.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Onest'; font-style: normal; font-weight: 400 800; font-display: swap; src: url('fonts/onest-latin-ext.woff2') format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
:root{
  --bg:#0d0d0d; --surface:#151515; --surface-2:#1b1b1b; --surface-3:#232323;
  --line:rgba(255,255,255,0.08); --line-soft:rgba(255,255,255,0.05);
  --text:#f4f4f4; --muted:#a0a0a0; --dim:#6d6d6d;
  --green:#22b07d; --green-ink:#041a12; --red:#e66767;
  --font:'Onest',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,monospace;
  --r-lg:22px; --r-md:16px; --r-pill:999px; --maxw:1180px; --readw:760px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.62;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.read{max-width:var(--readw)}

/* навигация */
.nav{position:sticky;top:0;z-index:100;background:rgba(13,13,13,.8);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line-soft)}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:.9rem;letter-spacing:.16em;text-transform:uppercase;text-decoration:none;white-space:nowrap}
.brand::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--green);flex:none}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none}
.nav-links a{display:block;padding:9px 16px;border-radius:var(--r-pill);font-size:.9rem;color:var(--muted);text-decoration:none;transition:color .2s,background .2s}
.nav-links a:hover{color:var(--text);background:var(--surface-2)}
.nav-cta{padding:10px 20px;border-radius:var(--r-pill);background:#fff;color:#0d0d0d;font-size:.9rem;font-weight:600;text-decoration:none;white-space:nowrap;border:0;cursor:pointer;font-family:var(--font);transition:transform .18s,box-shadow .18s}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(255,255,255,.14)}

/* шапка статьи */
.art-head{padding:64px 0 34px}
.crumbs{font-size:.84rem;color:var(--dim);margin-bottom:20px}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--text)}
h1{font-size:clamp(2.1rem,5vw,3.3rem);font-weight:600;letter-spacing:-.03em;line-height:1.08;margin-bottom:18px;max-width:18ch}
.art-lead{color:var(--muted);font-size:1.08rem;max-width:var(--readw)}
.art-meta{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px 18px;font-size:.84rem;color:var(--dim);align-items:center}
.art-meta .pill{padding:4px 12px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--surface)}

/* текст */
article{padding-bottom:40px}
article h2{font-size:clamp(1.5rem,3vw,2rem);font-weight:600;letter-spacing:-.02em;line-height:1.15;margin:52px 0 16px;max-width:22ch}
article h3{font-size:1.12rem;font-weight:600;margin:32px 0 10px}
article p{margin-bottom:16px;max-width:var(--readw)}
article p, article li{color:#d8d8d8}
article ul,article ol{margin:0 0 20px 0;padding-left:0;list-style:none;max-width:var(--readw)}
article ul li{position:relative;padding-left:20px;margin-bottom:10px}
article ul li::before{content:'';position:absolute;left:2px;top:11px;width:5px;height:5px;border-radius:50%;background:var(--green)}
article ol{counter-reset:n}
article ol li{position:relative;padding-left:32px;margin-bottom:10px;counter-increment:n}
article ol li::before{content:counter(n,decimal-leading-zero);position:absolute;left:0;top:0;color:var(--dim);font-size:.86rem;font-weight:600}
article strong{color:var(--text);font-weight:600}
article code{font-family:var(--mono);font-size:.9em;background:var(--surface-2);border:1px solid var(--line);border-radius:6px;padding:1px 6px}
article a{color:var(--green);text-decoration:none;border-bottom:1px solid rgba(34,176,125,.35)}
article a:hover{border-bottom-color:var(--green)}

/* карточка «на чём сыпятся» */
.fails{display:grid;gap:12px;margin:22px 0 28px;max-width:var(--readw)}
.fail{background:var(--surface);border:1px solid var(--line);border-left:2px solid rgba(230,103,103,.55);border-radius:var(--r-md);padding:16px 20px}
.fail b{display:block;color:var(--text);font-weight:600;margin-bottom:5px}
.fail span{color:var(--muted);font-size:.94rem}

/* врезка */
.note{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:20px 24px;margin:26px 0;max-width:var(--readw)}
.note b{color:var(--green)}

/* раскладка тем */
.bars{display:grid;gap:9px;margin:20px 0 28px;max-width:520px}
.bar{display:grid;grid-template-columns:150px 1fr 44px;align-items:center;gap:12px;font-size:.9rem}
.bar .t{color:var(--muted)}
.bar .l{height:9px;border-radius:4px;background:var(--green);min-width:4px}
.bar .n{color:var(--dim);text-align:right;font-variant-numeric:tabular-nums}

/* CTA и перелинковка */
.cta{background:var(--surface);border:1px solid rgba(34,176,125,.35);border-radius:var(--r-lg);padding:30px 32px;margin:48px 0 0;max-width:var(--readw)}
.cta h2{margin:0 0 10px;font-size:1.35rem}
.cta p{color:var(--muted);margin-bottom:20px}
.cta-row{display:flex;flex-wrap:wrap;gap:10px}
.btn{padding:12px 22px;border-radius:var(--r-pill);border:1px solid var(--line);background:transparent;color:var(--text);font-family:var(--font);font-size:.96rem;font-weight:600;cursor:pointer;text-decoration:none;display:inline-block;transition:background .2s,border-color .2s}
.btn:hover{background:var(--surface-3);border-color:rgba(255,255,255,.25)}
.btn.pri{background:#fff;color:#0d0d0d;border-color:#fff}
.btn.pri:hover{background:#e2e2e2}
.more{margin:56px 0 0}
.more h2{font-size:1.15rem;margin-bottom:16px}
.more-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px}
.more-grid a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:20px 22px;text-decoration:none;border-bottom:1px solid var(--line);transition:border-color .2s,transform .2s;color:inherit}
.more-grid a:hover{border-color:rgba(34,176,125,.5);transform:translateY(-2px)}
.more-grid b{display:block;margin-bottom:6px;font-size:1rem}
.more-grid span{color:var(--muted);font-size:.9rem}

footer{border-top:1px solid var(--line-soft);padding:30px 0;margin-top:70px;color:var(--dim);font-size:.86rem}
.foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.foot a{color:var(--muted);text-decoration:none;margin-left:18px}
.foot a:hover{color:var(--text)}
@media(max-width:760px){
  .nav-links{display:none}
  .art-head{padding:40px 0 26px}
  .bar{grid-template-columns:120px 1fr 40px}
}

/* списки с эмодзи-маркерами: ➖ и 1️⃣ стоят прямо в тексте, CSS-маркер не нужен */
article ul.elist li,article ol.nlist li{padding-left:0;margin-bottom:14px}
article ul.elist li::before,article ol.nlist li::before{display:none}
article ul.elist li .mk,article ol.nlist li .mk{display:inline-block;width:1.6em;margin-right:4px}
article ul.elist,article ol.nlist{margin:18px 0 26px}

/* переключатель разборов над заголовком */
.switch{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:26px}
.switch a{padding:7px 14px;border-radius:var(--r-pill);border:1px solid var(--line);font-size:.86rem;color:var(--muted);text-decoration:none;transition:color .2s,border-color .2s}
.switch a:hover{color:var(--text);border-color:rgba(255,255,255,.22)}
.switch a[aria-current="page"]{color:var(--text);border-color:rgba(34,176,125,.55);background:var(--surface)}

/* колонка текста + липкое оглавление справа */
.art-grid{display:grid;grid-template-columns:minmax(0,var(--readw)) minmax(0,1fr);gap:56px}
.art-main{min-width:0}
.toc-in{position:sticky;top:96px;border-left:1px solid var(--line);padding:4px 0 4px 18px;font-size:.86rem;max-width:260px}
.toc-in b{display:block;color:var(--dim);font-weight:500;font-size:.76rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px}
.toc-in a{display:block;color:var(--muted);text-decoration:none;border-bottom:0;padding:5px 0;line-height:1.35}
.toc-in a:hover{color:var(--text)}
.toc-in a.cur{color:var(--green)}
article h2{scroll-margin-top:90px}

/* предыдущая / следующая секция */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:48px 0 0;max-width:var(--readw)}
.pg{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:18px 20px;color:var(--text);text-decoration:none;transition:border-color .2s,transform .2s}
.pg:hover{border-color:rgba(34,176,125,.5);transform:translateY(-2px)}
.pg span{display:block;font-size:.8rem;color:var(--dim);margin-bottom:4px}
.pg b{font-size:1rem;font-weight:600}
.pg.next{text-align:right}
@media(max-width:1100px){.art-grid{grid-template-columns:minmax(0,1fr)}.toc{display:none}}
@media(max-width:600px){.pager{grid-template-columns:1fr}.pg.next{text-align:left}}