.post-header{background:var(--obsidian);overflow:hidden;padding:var(--s-8) 0;position:relative}.post-header:before{background:radial-gradient(ellipse 50% 60% at 85% 50%,rgba(52,245,181,.06),transparent 60%);content:"";inset:0;pointer-events:none;position:absolute}.post-header .buldok-container{position:relative}.post-header__inner{align-items:center;display:grid;gap:var(--s-8);grid-template-columns:1.15fr .85fr}.post-header__tags{display:flex;flex-wrap:wrap;gap:var(--s-2);margin-bottom:var(--s-4)}.post-header__tags .blog-card__tag{background:transparent;border-color:hsla(0,0%,100%,.22);color:hsla(0,0%,100%,.85)}.post-header__tags .blog-card__tag:hover{border-color:var(--emerald-glow);color:var(--emerald-glow)}.post-header__title{color:var(--bone);font-family:var(--font-display);font-size:44px;font-weight:var(--fw-bold);letter-spacing:-1.2px;line-height:1.08;margin:0 0 var(--s-5);text-wrap:balance}.post-header__meta{align-items:center;color:hsla(0,0%,100%,.55);display:flex;flex-wrap:wrap;font-family:var(--font-mono);font-size:12px;gap:var(--s-2);letter-spacing:.02em}.post-header__author{color:var(--bone);font-weight:var(--fw-semibold)}.post-header__sep{color:hsla(0,0%,100%,.3)}.post-header__image{border:1px solid hsla(0,0%,100%,.1);border-radius:var(--radius-lg);box-shadow:0 24px 60px rgba(0,0,0,.45);overflow:hidden}.post-header__image img{display:block;height:auto;width:100%}@media (max-width:767px){.post-header{padding:var(--s-7) 0}.post-header__inner{gap:var(--s-5);grid-template-columns:1fr}.post-header__title{font-size:32px;letter-spacing:-.8px}}.post-back{align-items:center;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-md);bottom:var(--s-5);box-shadow:0 8px 24px rgba(11,15,20,.12);color:var(--ink);display:inline-flex;font-family:var(--font-display);font-size:14px;font-weight:var(--fw-semibold);gap:var(--s-2);left:var(--s-5);opacity:0;padding:10px 16px;pointer-events:none;position:fixed;text-decoration:none;transform:translateY(12px);transition:opacity var(--dur-normal) var(--ease-out),transform var(--dur-normal) var(--ease-out),border-color var(--dur-fast) var(--ease-smooth),color var(--dur-fast) var(--ease-smooth);z-index:40}.post-back.is-visible{opacity:1;pointer-events:auto;transform:none}.post-back:hover{border-color:var(--emerald-deep);color:var(--emerald-deep)}.post-back svg{transition:transform var(--dur-fast) var(--ease-smooth)}.post-back:hover svg{transform:translateX(-3px)}@media (max-width:767px){.post-back{bottom:var(--s-4);left:var(--s-4);padding:10px 12px}.post-back span{display:none}}@media (prefers-reduced-motion:reduce){.post-back,.post-back svg{transition:none}}