/* Silo Digital — Premium Article */
:root{--sd-max-width:1200px;--sd-body-font:'Montserrat',sans-serif;--sd-heading-font:'Plus Jakarta Sans',sans-serif;--sd-body-size:18px;--sd-line-height:1.75;--sd-text:#1a1a1a;--sd-muted:#6b7280;--sd-border:#e5e7eb;--sd-bg-subtle:#f8f7ff;--sd-accent:var(--primaryColor,#5333BC);--sd-radius:12px}

/* Progress Bar */
.sd-progress-bar{position:fixed;top:0;left:0;height:3px;width:0;background:var(--sd-accent);z-index:99999;transition:width .1s linear}

/* Breadcrumbs */
.sd-breadcrumbs{padding:20px 0 12px;background:#fafafa;border-bottom:1px solid var(--sd-border)}
.sd-breadcrumbs__list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px;font-size:13px;font-family:var(--sd-body-font);color:var(--sd-muted)}
.sd-breadcrumbs__list li:not(:last-child)::after{content:'/';margin-left:6px;color:#ccc}
.sd-breadcrumbs__list a{color:var(--sd-muted);text-decoration:none}
.sd-breadcrumbs__list a:hover{color:var(--sd-accent)}
.sd-breadcrumbs__list li[aria-current]{color:var(--sd-text);font-weight:500}

/* Hero */
.sd-hero{position:relative;min-height:480px;background-size:cover;background-position:center;background-color:#1a1a2e;display:flex;align-items:flex-end}
.sd-hero__overlay{width:100%;padding:80px 0 48px;background:linear-gradient(to bottom,rgba(0,0,0,0) 0%,rgba(0,0,0,.65) 100%)}
.sd-hero__cats{display:flex;gap:8px;margin-bottom:16px}
.sd-badge{display:inline-block;padding:4px 14px;border-radius:50px;font-size:12px;font-weight:600;font-family:var(--sd-body-font);text-transform:uppercase;letter-spacing:.5px;background:rgba(255,255,255,.2);color:#fff;text-decoration:none;backdrop-filter:blur(4px)}
.sd-badge:hover{background:rgba(255,255,255,.35);color:#fff}
.sd-badge--sm{padding:2px 10px;font-size:11px;background:var(--sd-bg-subtle);color:var(--sd-accent)}
.sd-hero__title{font-family:var(--sd-heading-font);font-size:clamp(2rem,5vw,3.25rem);font-weight:700;color:#fff;line-height:1.15;margin:0 0 16px;max-width:800px}
.sd-hero__subtitle{font-family:var(--sd-body-font);font-size:clamp(1rem,2vw,1.2rem);color:rgba(255,255,255,.85);font-weight:400;line-height:1.5;margin:0;max-width:650px}

/* Meta Bar */
.sd-meta-bar{padding:20px 0;border-bottom:1px solid var(--sd-border);background:#fff}
.sd-meta-bar__inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.sd-meta-bar__left{display:flex;align-items:center;flex-wrap:wrap;gap:20px}
.sd-meta-bar__authors{display:flex;align-items:center;gap:10px}
.sd-avatar{width:40px;height:40px;border-radius:50%;object-fit:cover}
.sd-meta-bar__by{font-family:var(--sd-body-font);font-size:14px;font-weight:500;color:var(--sd-text);display:block}
.sd-meta-bar__author-link{color:var(--sd-accent);text-decoration:none}
.sd-meta-bar__author-link:hover{text-decoration:underline}
.sd-meta-bar__role{font-size:12px;color:var(--sd-muted);display:block}
.sd-meta-bar__reviewed{display:flex;align-items:center;gap:5px;font-size:13px;color:#059669;font-weight:500;font-family:var(--sd-body-font)}
.sd-meta-bar__date{font-size:13px;color:var(--sd-muted);font-family:var(--sd-body-font)}
.sd-meta-bar__updated{color:var(--sd-muted);font-style:italic}
.sd-meta-bar__sep{margin:0 4px}
.sd-meta-bar__readtime{font-weight:500}
.sd-meta-bar__share{display:flex;gap:8px}
.sd-share-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;border:1px solid var(--sd-border);background:#fff;color:var(--sd-muted);text-decoration:none;cursor:pointer;transition:all .2s}
.sd-share-btn:hover{border-color:var(--sd-accent);color:var(--sd-accent);background:var(--sd-bg-subtle)}

/* Content Layout */
.sd-content-wrap{padding:48px 0 0}
.sd-content-layout{display:flex;gap:48px;align-items:flex-start}
.sd-content-main{flex:1;min-width:0;max-width:64%}
.sd-sidebar{width:32%;flex-shrink:0;position:sticky;top:100px;max-height:calc(100vh - 120px);overflow-y:auto}

/* TLDR */
.sd-tldr{background:var(--sd-bg-subtle);border-left:3px solid var(--sd-accent);border-radius:0 var(--sd-radius) var(--sd-radius) 0;padding:24px 28px;margin-bottom:40px}
.sd-tldr__header{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.sd-tldr__icon{color:var(--sd-accent);flex-shrink:0}
.sd-tldr__title{font-family:var(--sd-heading-font);font-size:1.1rem;font-weight:700;margin:0;flex:1;color:var(--sd-text)}
.sd-tldr__toggle{background:none;border:none;cursor:pointer;color:var(--sd-muted);padding:4px;display:flex;transition:transform .3s}
.sd-tldr__toggle[aria-expanded="false"]{transform:rotate(-90deg)}
.sd-tldr__body{list-style:none;margin:0;padding:0;overflow:hidden;transition:max-height .4s ease,opacity .3s ease}
.sd-tldr__body.sd-collapsed{max-height:0!important;opacity:0}
.sd-tldr__body li{position:relative;padding:6px 0 6px 20px;font-family:var(--sd-body-font);font-size:15px;line-height:1.6;color:var(--sd-text)}
.sd-tldr__body li::before{content:'';position:absolute;left:0;top:14px;width:8px;height:8px;border-radius:50%;background:var(--sd-accent);opacity:.6}

/* Article Content Typography */
.sd-content{font-family:var(--sd-body-font);font-size:var(--sd-body-size);line-height:var(--sd-line-height);color:var(--sd-text)}
.sd-content h2{font-family:var(--sd-heading-font);font-size:1.75rem;font-weight:700;margin:48px 0 20px;color:var(--sd-text);scroll-margin-top:100px}
.sd-content h3{font-family:var(--sd-heading-font);font-size:1.35rem;font-weight:600;margin:36px 0 16px;color:var(--sd-text);scroll-margin-top:100px}
.sd-content h4{font-family:var(--sd-heading-font);font-size:1.15rem;font-weight:600;margin:28px 0 12px}
.sd-content p{margin:0 0 24px}
.sd-content a{color:var(--sd-accent);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .2s}
.sd-content a:hover{border-bottom-color:var(--sd-accent)}
.sd-content img{max-width:100%;height:auto;border-radius:8px;margin:24px 0}
.sd-content figure{margin:32px 0}
.sd-content figcaption{font-size:13px;color:var(--sd-muted);text-align:center;margin-top:8px}
.sd-content blockquote{margin:32px 0;padding:20px 24px;border-left:4px solid var(--sd-accent);background:var(--sd-bg-subtle);border-radius:0 8px 8px 0;font-style:italic;font-size:1.1rem;color:#374151}
.sd-content blockquote p:last-child{margin-bottom:0}
.sd-content ul,.sd-content ol{margin:0 0 24px 24px;padding:0}
.sd-content li{margin-bottom:8px;padding-left:4px}
.sd-content pre,.sd-content code{font-family:'Fira Code','Consolas',monospace;font-size:14px;background:#f3f4f6;border-radius:6px}
.sd-content pre{padding:20px;overflow-x:auto;margin:24px 0}
.sd-content code{padding:2px 6px}
.sd-content pre code{padding:0;background:none}

/* TOC */
.sd-toc{background:#fff;border:1px solid var(--sd-border);border-radius:var(--sd-radius);padding:24px}
.sd-toc__title{font-family:var(--sd-heading-font);font-size:14px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--sd-muted);margin:0 0 16px}
.sd-toc__nav ol{list-style:none;margin:0;padding:0}
.sd-toc__nav li a{display:block;padding:6px 0 6px 12px;font-family:var(--sd-body-font);font-size:14px;color:var(--sd-muted);text-decoration:none;border-left:2px solid transparent;transition:all .2s;line-height:1.4}
.sd-toc__nav li a:hover{color:var(--sd-accent)}
.sd-toc__nav li a.sd-toc--active{color:var(--sd-accent);font-weight:600;border-left-color:var(--sd-accent);background:var(--sd-bg-subtle);border-radius:0 6px 6px 0}
.sd-toc__nav li.sd-toc__h3 a{padding-left:28px;font-size:13px}

/* Author Cards */
.sd-author-section{margin-top:56px;padding-top:40px;border-top:1px solid var(--sd-border);display:flex;flex-direction:column;gap:24px}
.sd-author-card{display:flex;gap:20px;padding:28px;background:#fafafa;border-radius:var(--sd-radius);border:1px solid var(--sd-border)}
.sd-author-card--reviewer{background:#f0fdf4;border-color:#bbf7d0}
.sd-author-card__img{width:72px;height:72px;border-radius:50%;object-fit:cover;flex-shrink:0}
.sd-author-card__body{flex:1;min-width:0}
.sd-author-card__label{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--sd-muted);font-family:var(--sd-body-font);display:flex;align-items:center;gap:4px;margin-bottom:4px}
.sd-author-card--reviewer .sd-author-card__label{color:#059669}
.sd-author-card__name{font-family:var(--sd-heading-font);font-size:1.15rem;font-weight:700;margin:0 0 2px;color:var(--sd-text)}
.sd-author-card__role{font-size:14px;color:var(--sd-muted);margin:0 0 10px;font-family:var(--sd-body-font)}
.sd-author-card__bio{font-size:14px;line-height:1.6;color:#374151;font-family:var(--sd-body-font)}
.sd-author-card__bio p:last-child{margin-bottom:0}
.sd-author-card__date{font-size:12px;color:var(--sd-muted);margin-top:8px}
.sd-author-card__socials{display:flex;gap:12px;margin-top:12px}
.sd-author-card__socials a{color:var(--sd-muted);transition:color .2s}
.sd-author-card__socials a:hover{color:var(--sd-accent)}

/* CTA */
.sd-cta{margin:56px 0;padding:40px;background:linear-gradient(135deg,var(--sd-accent),#7c3aed);border-radius:var(--sd-radius);text-align:center;color:#fff}
.sd-cta__heading{font-family:var(--sd-heading-font);font-size:1.5rem;font-weight:700;margin:0 0 12px}
.sd-cta__text{font-family:var(--sd-body-font);font-size:16px;margin:0 0 24px;opacity:.9}
.sd-cta__btn{display:inline-block;padding:12px 32px;background:#fff;color:var(--sd-accent);font-family:var(--sd-body-font);font-weight:600;font-size:15px;border-radius:50px;text-decoration:none;transition:transform .2s,box-shadow .2s}
.sd-cta__btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.2);color:var(--sd-accent)}

/* Related */
.sd-related{margin:56px 0;padding-top:40px;border-top:1px solid var(--sd-border)}
.sd-related__heading{font-family:var(--sd-heading-font);font-size:1.35rem;font-weight:700;margin:0 0 24px;color:var(--sd-text)}
.sd-related__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sd-related__card{display:flex;flex-direction:column;border:1px solid var(--sd-border);border-radius:var(--sd-radius);overflow:hidden;text-decoration:none;color:inherit;transition:box-shadow .2s,transform .2s}
.sd-related__card:hover{box-shadow:0 8px 24px rgba(0,0,0,.08);transform:translateY(-3px);color:inherit}
.sd-related__img{aspect-ratio:16/10;overflow:hidden}
.sd-related__img img{width:100%;height:100%;object-fit:cover}
.sd-related__body{padding:16px 20px 20px;display:flex;flex-direction:column;gap:8px}
.sd-related__title{font-family:var(--sd-heading-font);font-size:1rem;font-weight:600;margin:0;color:var(--sd-text);line-height:1.3}
.sd-related__excerpt{font-size:14px;color:var(--sd-muted);margin:0;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sd-related__meta{font-size:12px;color:var(--sd-muted)}

/* Prev/Next */
.sd-post-nav{display:flex;justify-content:space-between;gap:24px;padding:32px 0;margin-bottom:48px;border-top:1px solid var(--sd-border)}
.sd-post-nav__link{text-decoration:none;color:inherit;max-width:48%}
.sd-post-nav__link:hover .sd-post-nav__title{color:var(--sd-accent)}
.sd-post-nav__label{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--sd-muted);display:block;margin-bottom:4px}
.sd-post-nav__title{font-family:var(--sd-heading-font);font-size:1rem;font-weight:600;color:var(--sd-text);transition:color .2s;line-height:1.3}
.sd-post-nav__next{text-align:right;margin-left:auto}

/* AI FAB */
.sd-ai-fab{position:fixed;bottom:28px;right:28px;z-index:9999}
.sd-ai-fab__btn{width:52px;height:52px;border-radius:50%;border:none;background:var(--sd-accent);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(83,51,188,.4);transition:transform .2s,box-shadow .2s}
.sd-ai-fab__btn:hover{transform:scale(1.08);box-shadow:0 6px 24px rgba(83,51,188,.5)}
.sd-ai-fab__menu{display:none;position:absolute;bottom:64px;right:0;width:220px;background:#fff;border:1px solid var(--sd-border);border-radius:var(--sd-radius);box-shadow:0 12px 40px rgba(0,0,0,.12);padding:16px;flex-direction:column;gap:4px}
.sd-ai-fab__menu.sd-open{display:flex}
.sd-ai-fab__label{font-family:var(--sd-body-font);font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--sd-muted);margin-bottom:8px}
.sd-ai-fab__option{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;font-family:var(--sd-body-font);font-size:14px;font-weight:500;color:var(--sd-text);text-decoration:none;transition:background .15s}
.sd-ai-fab__option:hover{background:var(--sd-bg-subtle);color:var(--sd-text)}

/* Mobile */
@media(max-width:991px){.sd-hero{min-height:360px}.sd-content-layout{flex-direction:column}.sd-content-main{max-width:100%}.sd-sidebar{width:100%;position:static;order:-1;max-height:none}.sd-toc{margin-bottom:32px}.sd-toc__nav{max-height:0;overflow:hidden;transition:max-height .4s ease}.sd-toc.sd-toc--expanded .sd-toc__nav{max-height:600px}.sd-toc__title{cursor:pointer;display:flex;justify-content:space-between;align-items:center;margin-bottom:0}.sd-toc__title::after{content:'+';font-size:18px;font-weight:400;transition:transform .3s}.sd-toc.sd-toc--expanded .sd-toc__title::after{content:'−'}.sd-toc.sd-toc--expanded .sd-toc__title{margin-bottom:16px}.sd-meta-bar__inner{flex-direction:column;align-items:flex-start}.sd-related__grid{grid-template-columns:1fr;gap:16px}.sd-post-nav{flex-direction:column}.sd-post-nav__link{max-width:100%}.sd-post-nav__next{text-align:left}.sd-author-card{flex-direction:column;align-items:center;text-align:center}.sd-author-card__socials{justify-content:center}.sd-ai-fab{bottom:16px;right:16px}.sd-content{font-size:16px}.sd-tldr{padding:20px}}
@media(max-width:575px){.sd-hero{min-height:280px}.sd-hero__overlay{padding:48px 0 32px}.sd-meta-bar__left{flex-direction:column;align-items:flex-start;gap:12px}}