/* ═══════════════════════════════════════════════════════════════════════
   blog.css — СВЕТЛАЯ лента блога Tendo (редизайн 2026-06-28).
   Карточки — Lyssna-стиль (.post-like): белый фон, hairline-граница, радиус 24, hover-подъём.
   Навбар/подвал — снаружи (nav.css + .foot из home.css). Токены — light (как в blog-article.css).
   ═══════════════════════════════════════════════════════════════════════ */

:root{
  --bg:#FFFFFF;--surface:#F6F8FA;--surface2:#F1ECFD;
  --text:#061D29;--muted:#425D6D;--faint:#5A7382;
  --accent:#6D49CE;--accent2:#4A63E0;--accent-ink:#FFFFFF;--good:#0FB87E;
  --line:#E5E7EB;--line2:#D1D5DB;--ink:#061D29;
  --sans:'Onest','Onest Fallback',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  /* 🔴 --maxw 1120→1140: сведено с tokens.css (#С-12). Общий ui.css задаёт футеру
     `max-width:var(--maxw)`, поэтому на блоге подвал был на 20px уже, чем на
     остальном сайте, — при переходе сайт→блог край футера заметно прыгал.
     --r 24px = --r-lg канона, совпадает. */
  --maxw:1140px;--r:24px;--ease:cubic-bezier(.4,0,.2,1);--spring:cubic-bezier(.34,1.4,.5,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{overflow-x:hidden;scroll-behavior:auto;-webkit-text-size-adjust:100%;scroll-padding-top:90px}
body{background:var(--bg);color:var(--text);font-family:var(--sans);line-height:1.65;letter-spacing:-.006em;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img,video,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{border:none;background:none;cursor:pointer;font:inherit;color:inherit}
::selection{background:rgba(109,73,206,.18)}
body::before{content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(800px circle at 90% -5%,rgba(109,73,206,.05),transparent 55%),radial-gradient(600px circle at 5% 80%,rgba(74,99,224,.03),transparent 50%)}
#spot,#nav-flash{pointer-events:none}
#nav-flash{position:fixed;inset:0;z-index:9999;background:var(--accent);opacity:0;transform:scaleX(0);transform-origin:left center;will-change:transform,opacity}
#spot{display:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px}

/* ═══════════ HERO ═══════════ */
.blog-hero{padding:130px 0 50px;text-align:center;position:relative}
.hero-tag{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;background:rgba(109,73,206,.07);border:1px solid rgba(109,73,206,.18);border-radius:var(--r-pill);padding:6px 16px;color:var(--muted);margin-bottom:24px}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.blog-hero h1{font-size:clamp(34px,6vw,64px);font-weight:700;letter-spacing:-.03em;line-height:1.05;margin-bottom:20px;color:var(--text)}
.blog-hero h1 .grad{background:linear-gradient(95deg,#4A63E0,#6D49CE 52%,#1AA47C);-webkit-background-clip:text;background-clip:text;color:transparent}
.blog-hero p{font-size:clamp(16px,2vw,20px);color:var(--muted);max-width:54ch;margin:0 auto 48px;line-height:1.6}
.blog-stats{display:flex;justify-content:center;gap:40px;margin-bottom:0}
.stat{text-align:center}
.stat b{display:block;font-size:32px;font-weight:800;letter-spacing:-.03em;color:var(--accent);font-variant-numeric:tabular-nums}
.stat span{font-size:13px;color:var(--muted);font-family:var(--mono)}

/* ═══════════ FILTERS ═══════════ */
.filters-wrap{padding:0 0 40px}
.filters{display:flex;flex-wrap:wrap;gap:8px}
/* Чипы фильтра блога — единый класс .qa-tab (визуал в css/ui.css). */

/* ═══════════ GRID + CARDS (Lyssna .post-стиль) ═══════════ */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding-bottom:80px}
.blog-card{display:flex;flex-direction:column;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 24px;height:auto;min-height:230px;transition:border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);position:relative;overflow:hidden}
@media (hover:hover) and (pointer:fine){.blog-card:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:0 20px 48px -24px rgba(109,73,206,.18)}.blog-card:hover .card-title{color:var(--accent)}.blog-card:hover .card-arrow{transform:rotate(-45deg)}}
.card-cat{display:inline-flex;font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;border:1px solid;border-radius:var(--r-pill);padding:4px 12px;width:fit-content}
.card-title{font-size:16px;font-weight:700;letter-spacing:-.01em;line-height:1.35;color:var(--text);transition:color .2s}
.card-desc{font-size:13px;color:var(--muted);line-height:1.55;flex:1}
.card-meta{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.card-time{display:flex;align-items:center;gap:6px;font-family:var(--mono);font-size:12px;color:var(--faint)}
.card-arrow{font-size:16px;color:var(--accent);transition:transform .25s var(--ease),color .2s}
.blog-card.hidden{display:none}

/* ═══════════ RESPONSIVE ═══════════ */
@media(max-width:900px){.blog-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.blog-stats{gap:24px}}
@media(max-width:560px){.blog-grid{grid-template-columns:1fr}.wrap{padding:0 20px}.card-title{display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .hero-tag .dot{animation:none!important}
}

/* ═══════════════ ПОСТЕР-КАРТОЧКИ (обложки + hover-раскрытие, эталон blog-cards-batch1) ═══════════════ */
.blog-card{aspect-ratio:3/4;min-height:0;height:auto;padding:0;gap:0;border-radius:var(--r-md);overflow:hidden;display:block;background:#1A1640;border:1px solid var(--line);position:relative}
.blog-card .bcard-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.23,1,.32,1)}
.blog-card .sc-top{position:absolute;inset:0 0 auto 0;height:64%;background:linear-gradient(to bottom,rgba(10,8,28,.85),rgba(10,8,28,.25) 55%,transparent);pointer-events:none}
.blog-card .sc-bot{position:absolute;inset:auto 0 0 0;height:46%;background:linear-gradient(to top,rgba(10,8,28,.92),rgba(10,8,28,.2) 60%,transparent);transition:background .3s;pointer-events:none}
.blog-card .bcard-top{position:absolute;top:20px;left:20px;right:20px;color:#fff;z-index:2}
.blog-card .card-cat{display:inline-block;width:auto;font-family:var(--mono);font-size:12px;color:#CBBFF4;letter-spacing:.02em;border:none;border-bottom:2px solid var(--accent);border-radius:0;background:none!important;padding:0 0 3px;text-transform:uppercase}
.blog-card .card-title{font-family:var(--f-sans);font-weight:600;font-size:20px;line-height:1.2;letter-spacing:-.02em;margin-top:14px;color:#fff;text-shadow:0 2px 16px rgba(0,0,0,.5);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.blog-card .bcard-excerpt{max-height:0;overflow:hidden;opacity:0;transition:max-height .45s cubic-bezier(.23,1,.32,1),opacity .3s}
.blog-card .bcard-excerpt .card-desc{margin-top:11px;font-size:13px;line-height:1.5;color:#DCD8F0}
.blog-card .bcard-date{position:absolute;left:20px;bottom:18px;font-family:var(--mono);font-size:13px;color:#fff;z-index:2}
.blog-card .bcard-arrow{position:absolute;right:18px;bottom:16px;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.07);transition:transform .4s cubic-bezier(.34,1.4,.5,1),background .3s,border-color .3s;z-index:2}
.blog-card .bcard-arrow svg{width:17px;height:17px}
.blog-card .card-meta{display:none}
@media (hover:hover) and (pointer:fine){
  .blog-card:hover{transform:translateY(-3px);box-shadow:0 30px 56px -28px rgba(6,29,41,.5);border-color:var(--line)}
  .blog-card:hover .bcard-img{transform:scale(1.05)}
  .blog-card:hover .card-title{color:#fff}
  .blog-card:hover .sc-bot{background:linear-gradient(to top,rgba(10,8,28,.96),rgba(10,8,28,.5) 65%,transparent)}
  .blog-card:hover .bcard-excerpt{max-height:150px;opacity:1}
  .blog-card:hover .bcard-arrow{transform:rotate(-45deg);background:var(--accent);border-color:var(--accent)}
}
@media (max-width:700px){
  .blog-card .bcard-excerpt{max-height:150px;opacity:1}
  .blog-card .bcard-arrow{transform:rotate(-45deg);background:var(--accent);border-color:var(--accent)}
}
@media (prefers-reduced-motion:reduce){.blog-card .bcard-img{transition:none}}