/*
Theme Name:  Techdella Blog
Theme URI:   https://blog.techdella.com
Author:      Techdella
Description: Blog theme for Techdella — matches main site design, optimized for SEO/AEO, featured posts, sponsored content, and guest submissions.
Version:     1.0.0
Requires at least: 6.0
Requires PHP: 8.0
License: Proprietary
Text Domain: techdella-blog
*/

/* ── TOKENS ── */
:root{
  --black:#0d0d0d;--ink:#1a1a1a;--muted:#6a6a6a;--faint:#aaaaaa;--line:#e2e2e2;
  --soft:#f7f7f7;--orange:#e8470a;--o-dim:rgba(232,71,10,.07);--o-bdr:rgba(232,71,10,.18);
  --white:#fff;--fd:'Syne',system-ui,sans-serif;--fb:'Outfit',system-ui,sans-serif;
  --sh-sm:0 2px 8px rgba(0,0,0,.06);--sh-md:0 8px 28px rgba(0,0,0,.09);
  --sh-lg:0 20px 60px rgba(0,0,0,.11);--sponsored:#d4a017;--featured:#0ea5e9;
}

/* ── RESET ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--fb);color:var(--ink);background:#ebebeb;-webkit-font-smoothing:antialiased;line-height:1.6}
img{max-width:100%;height:auto;display:block;border-radius:8px}
a{text-decoration:none;color:inherit}
button{cursor:pointer;font-family:inherit;border:none;background:none}
ul,ol{list-style:none}
input,textarea,select{font-family:inherit}

/* ── GRID TEXTURE ── */
.tb-grid{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(0,0,0,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,.04) 1px,transparent 1px);background-size:72px 72px;opacity:.35;z-index:0}

/* ── LAYOUT ── */
.tb-site{width:100%;background:var(--white);position:relative;overflow-x:hidden}
.tb-container{width:100%;max-width:1280px;margin:0 auto;padding:0 40px}
.tb-wrap{max-width:1200px;margin:0 auto;padding:0 40px}
.tb-s{padding:96px 0}
.tb-s--sm{padding:64px 0}
.tb-s--bg{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.tb-s--dark{background:var(--black);border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06)}

/* ── TYPOGRAPHY ── */
.tb-h1{font-family:var(--fd);font-size:clamp(38px,5vw,68px);font-weight:800;line-height:.95;letter-spacing:-.05em;color:var(--black)}
.tb-h2{font-family:var(--fd);font-size:clamp(28px,3.5vw,44px);font-weight:800;line-height:1;letter-spacing:-.04em;color:var(--black);margin-bottom:16px}
.tb-h3{font-family:var(--fd);font-size:clamp(18px,2vw,22px);font-weight:700;letter-spacing:-.03em;line-height:1.2}
.tb-h4{font-family:var(--fd);font-size:17px;font-weight:700;letter-spacing:-.025em}
.tb-h1 em,.tb-h2 em{font-style:italic;color:var(--orange)}
.tb-h2.white{color:#fff}
.tb-lead{font-size:16px;line-height:1.75;color:var(--muted)}
.tb-body{font-size:15px;line-height:1.75;color:var(--muted)}
.tb-small{font-size:13.5px;line-height:1.7;color:var(--muted)}

/* ── HEADER ── */
.tb-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);width:100%}
.tb-header .tb-container{display:flex;align-items:center;justify-content:space-between;height:64px}
.tb-brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.tb-brand img{height:28px;width:auto}
.tb-brand__text{font-family:var(--fd);font-size:18px;font-weight:800;letter-spacing:-.04em;color:var(--black)}
.tb-brand__blog{font-size:13px;font-weight:500;color:var(--faint);margin-left:-6px}
.tb-nav__links{display:flex;align-items:center;gap:32px}
.tb-nav__links a{font-size:14px;font-weight:500;color:var(--ink);transition:color .15s}
.tb-nav__links a:hover,.tb-nav__links a.active{color:var(--orange)}
.tb-nav__cta{background:var(--black);color:#fff!important;padding:10px 22px;border-radius:6px;font-weight:600;font-size:13px;transition:background .15s}
.tb-nav__cta:hover{background:var(--orange)}
.tb-mobile-toggle{display:none;flex-direction:column;gap:5px;padding:8px}
.tb-mobile-toggle span{width:22px;height:2px;background:var(--black);border-radius:2px;transition:transform .2s}

/* ── FOOTER ── */
.tb-footer{width:100%;background:#101010;color:white;border-top:1px solid rgba(255,255,255,.08);padding:64px 0 34px}
.tb-footer-top{display:grid;grid-template-columns:minmax(260px,1.4fr) repeat(3,minmax(130px,1fr));gap:34px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1)}
.tb-footer-brand img{height:26px;margin-bottom:16px;display:block}
.tb-footer-brand p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.58);max-width:320px;margin-bottom:18px}
.tb-footer-col h5{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.09em;color:var(--faint);margin-bottom:12px}
.tb-footer-col a{display:block;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:8px;transition:color .15s}
.tb-footer-col a:hover{color:var(--orange)}
.tb-footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;font-size:12px;color:rgba(255,255,255,.46);flex-wrap:wrap;gap:16px}
.tb-footer-legal{display:flex;gap:16px}
.tb-footer-legal a{color:rgba(255,255,255,.48);transition:color .15s}
.tb-footer-legal a:hover{color:var(--orange)}

/* ── BUTTONS ── */
.tb-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:8px;font-size:14px;font-weight:600;transition:all .15s;white-space:nowrap}
.tb-btn--orange{background:var(--orange);color:#fff}
.tb-btn--orange:hover{background:#c73808;transform:translateY(-1px)}
.tb-btn--black{background:var(--black);color:#fff}
.tb-btn--black:hover{background:#333;transform:translateY(-1px)}
.tb-btn--sm{padding:10px 20px;font-size:13px}
.tb-btn--lg{padding:16px 36px;font-size:15px}
.tb-btn--ghost{background:transparent;border:1.5px solid var(--line);color:var(--ink)}
.tb-btn--ghost:hover{border-color:var(--orange);color:var(--orange)}

/* ── BADGES ── */
.tb-badge{display:inline-block;padding:4px 10px;border-radius:4px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.04em}
.tb-badge--sponsored{background:rgba(212,160,23,.12);color:var(--sponsored)}
.tb-badge--featured{background:rgba(14,165,233,.1);color:var(--featured)}

/* ── BLOG ARCHIVE ── */
.tb-archive-hero{position:relative;padding:80px 0 60px;text-align:center}
.tb-archive-hero .tb-h1{margin-bottom:16px}
.tb-archive-hero p{font-size:17px;color:var(--muted);max-width:580px;margin:0 auto}
.tb-featured-section{margin-bottom:64px}
.tb-featured-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tb-featured-card{background:var(--soft);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:transform .2s,box-shadow .2s}
.tb-featured-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.tb-featured-card__img{height:180px;overflow:hidden;background:#eee}
.tb-featured-card__img img{width:100%;height:100%;object-fit:cover;border-radius:0}
.tb-featured-card__body{padding:20px}
.tb-featured-card__meta{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.tb-featured-card__cat{font-size:12px;font-weight:600;color:var(--orange);text-transform:uppercase;letter-spacing:.04em}
.tb-featured-card__date{font-size:12px;color:var(--faint)}
.tb-featured-card__title{font-family:var(--fd);font-size:17px;font-weight:700;line-height:1.3;margin-bottom:8px;color:var(--black)}
.tb-featured-card__excerpt{font-size:13.5px;color:var(--muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tb-featured-card__author{display:flex;align-items:center;gap:10px;margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
.tb-featured-card__avatar{width:32px;height:32px;border-radius:50%;overflow:hidden;background:#ddd}
.tb-featured-card__avatar img{width:100%;height:100%;object-fit:cover;border-radius:50%}
.tb-featured-card__name{font-size:13px;font-weight:600;color:var(--ink)}

/* ── POST CARDS ── */
.tb-posts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tb-post-card{background:var(--white);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:transform .2s,box-shadow .2s}
.tb-post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.tb-post-card__img{height:200px;overflow:hidden;background:#eee;position:relative}
.tb-post-card__img img{width:100%;height:100%;object-fit:cover;border-radius:0}
.tb-post-card__badge{position:absolute;top:12px;left:12px}
.tb-post-card__body{padding:20px}
.tb-post-card__meta{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.tb-post-card__cat{font-size:12px;font-weight:600;color:var(--orange);text-transform:uppercase;letter-spacing:.04em}
.tb-post-card__date{font-size:12px;color:var(--faint)}
.tb-post-card__title{font-family:var(--fd);font-size:17px;font-weight:700;line-height:1.3;margin-bottom:8px;color:var(--black)}
.tb-post-card__excerpt{font-size:13.5px;color:var(--muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tb-post-card__author{display:flex;align-items:center;gap:10px;margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
.tb-post-card__avatar{width:32px;height:32px;border-radius:50%;overflow:hidden;background:#ddd}
.tb-post-card__avatar img{width:100%;height:100%;object-fit:cover;border-radius:50%}
.tb-post-card__name{font-size:13px;font-weight:600;color:var(--ink)}

/* ── SINGLE POST LAYOUT ── */
.tb-single{display:grid;grid-template-columns:1fr 320px;gap:48px;padding:64px 0}
.tb-single__content{max-width:780px}
.tb-single__header{margin-bottom:32px}
.tb-single__meta{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.tb-single__title{font-family:var(--fd);font-size:clamp(32px,4vw,48px);font-weight:800;line-height:1.1;letter-spacing:-.04em;color:var(--black);margin-bottom:20px}
.tb-single__excerpt{font-size:18px;line-height:1.7;color:var(--muted);margin-bottom:24px}
.tb-single__author-bar{display:flex;align-items:center;gap:14px;padding-bottom:24px;border-bottom:1px solid var(--line)}
.tb-single__author-bar img{width:48px;height:48px;border-radius:50%;object-fit:cover}
.tb-single__author-bar__name{font-size:15px;font-weight:600;color:var(--ink)}
.tb-single__author-bar__role{font-size:13px;color:var(--muted)}
.tb-single__featured-img{margin-bottom:32px;border-radius:12px;overflow:hidden}
.tb-single__featured-img img{width:100%;height:auto;border-radius:12px}

/* ── TLDR BOX ── */
.tb-tldr{background:var(--soft);border-left:4px solid var(--orange);border-radius:8px;padding:20px 24px;margin-bottom:32px}
.tb-tldr__title{font-family:var(--fd);font-size:14px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--orange);margin-bottom:8px}
.tb-tldr__text{font-size:15px;line-height:1.7;color:var(--ink)}

/* ── TABLE OF CONTENTS ── */
.tb-toc{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:20px;margin-bottom:32px;position:sticky;top:88px}
.tb-toc__title{font-family:var(--fd);font-size:14px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--black);margin-bottom:14px}
.tb-toc__list{display:flex;flex-direction:column;gap:8px}
.tb-toc__list a{font-size:13.5px;color:var(--muted);padding:6px 0;border-bottom:1px solid rgba(0,0,0,.04);transition:color .15s,padding-left .15s}
.tb-toc__list a:hover{color:var(--orange);padding-left:6px}
.tb-toc__list li:last-child a{border-bottom:none}

/* ── BLOG CONTENT STYLES ── */
.tb-content h2{font-family:var(--fd);font-size:28px;font-weight:800;letter-spacing:-.04em;margin:44px 0 14px;color:var(--black)}
.tb-content h3{font-family:var(--fd);font-size:22px;font-weight:700;letter-spacing:-.03em;margin:32px 0 10px;color:var(--black)}
.tb-content p{font-size:16px;line-height:1.8;color:var(--ink);margin-bottom:20px}
.tb-content ul,.tb-content ol{list-style:disc;padding-left:24px;margin-bottom:20px}
.tb-content li{font-size:16px;line-height:1.8;color:var(--ink);margin-bottom:8px}
.tb-content blockquote{border-left:4px solid var(--orange);padding:20px 24px;margin:28px 0;background:var(--soft);border-radius:0 8px 8px 0}
.tb-content blockquote p{font-size:17px;font-style:italic;color:var(--black);margin:0}
.tb-content blockquote cite{display:block;font-size:13px;color:var(--muted);margin-top:8px;font-style:normal}
.tb-content img{border-radius:12px;margin:24px 0}
.tb-content figure{margin:24px 0}
.tb-content figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.tb-content pre{background:#1a1a1a;color:#e6e6e6;padding:20px;border-radius:8px;overflow-x:auto;margin:24px 0;font-size:14px;line-height:1.6}
.tb-content code{background:var(--soft);padding:2px 6px;border-radius:4px;font-size:14px;color:var(--black)}
.tb-content pre code{background:none;padding:0;color:#e6e6e6}
.tb-content table{width:100%;border-collapse:collapse;margin:24px 0;border-radius:8px;overflow:hidden;border:1px solid var(--line)}
.tb-content th,.tb-content td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);font-size:15px}
.tb-content th{background:var(--soft);font-weight:700;color:var(--black)}
.tb-content a{color:var(--orange);text-decoration:underline}
.tb-content hr{border:none;height:1px;background:var(--line);margin:32px 0}

/* ── INLINE CTA ── */
.tb-inline-cta{background:linear-gradient(135deg,var(--soft),var(--white));border:1px solid var(--line);border-radius:12px;padding:28px;margin:40px 0;display:flex;align-items:center;justify-content:space-between;gap:24px}
.tb-inline-cta__content{flex:1}
.tb-inline-cta__label{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--orange);margin-bottom:6px}
.tb-inline-cta__title{font-family:var(--fd);font-size:18px;font-weight:700;color:var(--black);margin-bottom:6px}
.tb-inline-cta__text{font-size:14px;color:var(--muted);margin:0}
.tb-inline-cta--founders{background:var(--black);border-color:var(--black)}
.tb-inline-cta--founders .tb-inline-cta__label{color:var(--faint)}
.tb-inline-cta--founders .tb-inline-cta__title{color:#fff}
.tb-inline-cta--founders .tb-inline-cta__text{color:rgba(255,255,255,.6)}

/* ── SIDEBAR ── */
.tb-sidebar{display:flex;flex-direction:column;gap:32px}
.tb-sidebar__widget{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:24px}
.tb-sidebar__title{font-family:var(--fd);font-size:15px;font-weight:700;color:var(--black);margin-bottom:16px}
.tb-sidebar__posts li{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.tb-sidebar__posts li:last-child{border-bottom:none;padding-bottom:0}
.tb-sidebar__posts li:first-child{padding-top:0}
.tb-sidebar__posts__img{width:64px;height:64px;border-radius:8px;overflow:hidden;flex-shrink:0;background:#eee}
.tb-sidebar__posts__img img{width:100%;height:100%;object-fit:cover;border-radius:8px}
.tb-sidebar__posts__content{flex:1}
.tb-sidebar__posts__title{font-size:14px;font-weight:600;color:var(--ink);line-height:1.3;margin-bottom:4px}
.tb-sidebar__posts__date{font-size:12px;color:var(--faint)}
.tb-sidebar__cta{background:var(--orange);border:none;color:#fff;text-align:center}
.tb-sidebar__cta .tb-sidebar__title{color:#fff}
.tb-sidebar__cta p{font-size:14px;line-height:1.6;color:rgba(255,255,255,.85);margin-bottom:16px}
.tb-sidebar__cta .tb-btn--sm{background:#fff;color:var(--orange)}
.tb-sidebar__categories a{display:block;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink);transition:color .15s}
.tb-sidebar__categories a:last-child{border-bottom:none}
.tb-sidebar__categories a:hover{color:var(--orange)}
.tb-sidebar__categories span{float:right;color:var(--faint);font-size:13px}

/* ── GUEST POST PAGE ── */
.tb-guest-hero{position:relative;padding:80px 0 60px;text-align:center}
.tb-pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:64px}
.tb-pricing-card{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:32px;text-align:center;position:relative;transition:transform .2s,box-shadow .2s}
.tb-pricing-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.tb-pricing-card__popular{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--orange);color:#fff;padding:6px 16px;border-radius:20px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.04em}
.tb-pricing-card__title{font-family:var(--fd);font-size:20px;font-weight:700;color:var(--black);margin-bottom:8px}
.tb-pricing-card__price{font-family:var(--fd);font-size:36px;font-weight:800;color:var(--orange);margin-bottom:16px}
.tb-pricing-card__price span{font-size:14px;font-weight:500;color:var(--muted)}
.tb-pricing-card__features{text-align:left;margin-bottom:24px}
.tb-pricing-card__features li{font-size:14px;color:var(--ink);padding:8px 0;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px}
.tb-pricing-card__features li:last-child{border-bottom:none}
.tb-pricing-card__features li::before{content:"+";color:var(--orange);font-weight:800;font-size:16px}
.tb-guidelines{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:32px;margin-bottom:48px}
.tb-guidelines h3{font-family:var(--fd);font-size:20px;font-weight:700;color:var(--black);margin-bottom:16px}
.tb-guidelines ul{list-style:disc;padding-left:20px}
.tb-guidelines li{font-size:15px;line-height:1.7;color:var(--ink);margin-bottom:10px}
.tb-guest-form{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:40px}
.tb-guest-form h3{font-family:var(--fd);font-size:22px;font-weight:700;color:var(--black);margin-bottom:24px}
.tb-form-group{margin-bottom:20px}
.tb-form-group label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:6px}
.tb-form-group input,.tb-form-group textarea,.tb-form-group select{width:100%;padding:12px 16px;border:1px solid var(--line);border-radius:8px;font-size:15px;transition:border-color .15s}
.tb-form-group input:focus,.tb-form-group textarea:focus,.tb-form-group select:focus{outline:none;border-color:var(--orange)}
.tb-form-group textarea{min-height:120px;resize:vertical}
.tb-form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.tb-form-msg{display:none;padding:12px 16px;border-radius:8px;font-size:14px;margin-top:12px}
.tb-form-msg--success{background:rgba(16,185,129,.1);color:#059669;border:1px solid rgba(16,185,129,.2)}
.tb-form-msg--error{background:rgba(239,68,68,.1);color:#dc2626;border:1px solid rgba(239,68,68,.2)}

/* ── AUTHOR PAGE ── */
.tb-author-hero{text-align:center;padding:80px 0 48px}
.tb-author-hero__avatar{width:120px;height:120px;border-radius:50%;margin:0 auto 20px;overflow:hidden;border:4px solid var(--soft)}
.tb-author-hero__avatar img{width:100%;height:100%;object-fit:cover;border-radius:50%}
.tb-author-hero__name{font-family:var(--fd);font-size:32px;font-weight:800;color:var(--black);margin-bottom:8px}
.tb-author-hero__bio{font-size:16px;line-height:1.7;color:var(--muted);max-width:580px;margin:0 auto 24px}
.tb-author-hero__links{display:flex;justify-content:center;gap:16px}
.tb-author-hero__links a{font-size:14px;color:var(--orange);font-weight:500}
.tb-author-hero__links a:hover{text-decoration:underline}
.tb-author-schema{display:none}

/* ── 404 ── */
.tb-404{text-align:center;padding:120px 0}
.tb-404__code{font-family:var(--fd);font-size:120px;font-weight:800;color:var(--orange);line-height:1;margin-bottom:16px}
.tb-404__text{font-size:18px;color:var(--muted);margin-bottom:32px}

/* ── PAGINATION ── */
.tb-pagination{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:48px}
.tb-pagination a,.tb-pagination span{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:8px;font-size:14px;font-weight:600;border:1px solid var(--line);color:var(--ink);transition:all .15s}
.tb-pagination a:hover{border-color:var(--orange);color:var(--orange)}
.tb-pagination .current{background:var(--black);color:#fff;border-color:var(--black)}

/* ── RESPONSIVE ── */
@media(max-width:1024px){
  .tb-single{grid-template-columns:1fr}
  .tb-sidebar{display:none}
  .tb-featured-grid,.tb-posts-grid,.tb-pricing-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .tb-container,.tb-wrap{padding:0 20px}
  .tb-nav__links{display:none}
  .tb-mobile-toggle{display:flex}
  .tb-featured-grid,.tb-posts-grid,.tb-pricing-grid{grid-template-columns:1fr}
  .tb-inline-cta{flex-direction:column;text-align:center}
  .tb-form-row{grid-template-columns:1fr}
  .tb-footer-top{grid-template-columns:1fr}
  .tb-404__code{font-size:80px}
}