/*
Theme Name: KnowledgeArenas
Theme URI: https://knowledgearenas.com
Author: KnowledgeArenas
Author URI: https://knowledgearenas.com
Description: KnowledgeArenas is a fast, SEO-friendly WordPress blog and knowledge-hub theme. Editorial ivory-and-emerald design with an overlay hero, a topics grid, numbered "most read" list, a sticky LEFT sidebar full of widgets, page templates and a one-click demo importer. Works with Yoast SEO, WPCode and Classic Editor.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.8
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: knowledgearenas
Tags: blog, education, news, two-columns, left-sidebar, custom-menu, custom-logo, featured-images, threaded-comments, translation-ready, block-styles, wide-blocks
*/

/* ---------- tokens ---------- */
:root{
  --ka-ink:#151a17;
  --ka-ink-soft:#5a655d;
  --ka-bg:#fbf9f4;
  --ka-surface:#f2efe6;
  --ka-card:#ffffff;
  --ka-line:#e2ddcf;
  --ka-brand:#12463a;
  --ka-brand-2:#1c6b56;
  --ka-accent:#b8892b;
  --ka-radius:4px;
  --ka-sans:"Sora",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --ka-serif:"Spectral",Georgia,"Times New Roman",serif;
  --ka-wrap:1240px;
}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ka-bg);color:var(--ka-ink);font-family:var(--ka-serif);font-size:18px;line-height:1.75}
img{max-width:100%;height:auto;display:block}
a{color:var(--ka-brand-2);text-decoration:none}
a:hover,a:focus{color:var(--ka-accent)}
h1,h2,h3,h4,h5,h6{font-family:var(--ka-sans);color:var(--ka-ink);line-height:1.2;margin:0 0 .6em;font-weight:600;letter-spacing:-.015em}
h1{font-size:2.5rem}h2{font-size:1.75rem}h3{font-size:1.25rem}
p,ul,ol,blockquote,figure,table{margin:0 0 1.2em}
blockquote{border-left:3px solid var(--ka-accent);margin-left:0;padding:.2em 0 .2em 1.2em;color:var(--ka-ink-soft);font-size:1.15rem;font-style:italic}
code,pre{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em}
pre{background:var(--ka-ink);color:#f2efe6;padding:1rem;border-radius:var(--ka-radius);overflow:auto}
table{width:100%;border-collapse:collapse}
th,td{border:1px solid var(--ka-line);padding:.6rem .7rem;text-align:left}
th{background:var(--ka-surface);font-family:var(--ka-sans);font-size:.9rem}
hr{border:0;border-top:1px solid var(--ka-line);margin:2rem 0}
.screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);clip-path:inset(50%);white-space:nowrap}
.skip-link:focus{position:fixed;top:12px;left:12px;width:auto;height:auto;clip:auto;clip-path:none;background:#fff;padding:.6rem 1rem;z-index:99}

.ka-wrap{max-width:var(--ka-wrap);margin:0 auto;padding:0 22px}
.ka-btn,button,input[type=submit],.wp-block-button__link{display:inline-block;background:var(--ka-brand);color:#fff;border:0;border-radius:2px;padding:.72rem 1.3rem;font-family:var(--ka-sans);font-weight:600;font-size:.88rem;letter-spacing:.02em;cursor:pointer}
.ka-btn:hover,button:hover,input[type=submit]:hover{background:var(--ka-accent);color:#fff}
input[type=text],input[type=email],input[type=search],input[type=url],input[type=tel],textarea,select{width:100%;padding:.7rem .85rem;border:1px solid var(--ka-line);border-radius:2px;font:inherit;background:#fff;color:var(--ka-ink)}
input:focus,textarea:focus,select:focus{outline:2px solid var(--ka-brand-2);outline-offset:1px}

/* ---------- header ---------- */
.ka-topbar{background:var(--ka-ink);color:#efece2;font-family:var(--ka-sans);font-size:.78rem;letter-spacing:.04em}
.ka-topbar .ka-wrap{display:flex;gap:1rem;align-items:center;justify-content:space-between;min-height:40px}
.ka-topbar a{color:var(--ka-accent)}
.ka-header{background:var(--ka-bg);border-bottom:1px solid var(--ka-line)}
.ka-header-inner{display:flex;align-items:center;justify-content:space-between;gap:2rem;padding:1.5rem 0}
.ka-brand{display:flex;align-items:center;gap:.85rem}
.ka-brand img{width:46px;height:46px}
.ka-site-title{font-family:var(--ka-sans);font-size:1.55rem;font-weight:700;margin:0;letter-spacing:-.03em;text-transform:none}
.ka-site-title a{color:var(--ka-ink)}
.ka-tagline{margin:.15rem 0 0;font-size:.8rem;color:var(--ka-ink-soft);font-family:var(--ka-sans);letter-spacing:.03em}
.ka-nav ul{list-style:none;display:flex;gap:1.6rem;margin:0;padding:0;flex-wrap:wrap}
.ka-nav a{font-family:var(--ka-sans);color:var(--ka-ink);font-weight:500;font-size:.86rem;letter-spacing:.05em;text-transform:uppercase;padding:.4rem 0;display:inline-block;border-bottom:2px solid transparent}
.ka-nav .current-menu-item>a,.ka-nav a:hover{color:var(--ka-brand);border-bottom-color:var(--ka-accent)}
.ka-nav li{position:relative}
.ka-nav ul ul{display:none;position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--ka-line);padding:.5rem;min-width:220px;flex-direction:column;gap:.2rem;z-index:20;box-shadow:0 18px 40px rgba(21,26,23,.12)}
.ka-nav ul ul a{text-transform:none;letter-spacing:0;font-size:.9rem}
.ka-nav li:hover>ul,.ka-nav li:focus-within>ul{display:flex}
.ka-menu-toggle{display:none}
.ka-catstrip{background:var(--ka-brand);color:#fff}
.ka-catstrip ul{list-style:none;display:flex;gap:1.8rem;margin:0;padding:.75rem 0;overflow-x:auto}
.ka-catstrip a{font-family:var(--ka-sans);font-size:.78rem;text-transform:uppercase;letter-spacing:.11em;font-weight:500;color:#e8f0ea;white-space:nowrap;border:0}
.ka-catstrip a:hover{color:#e8c882}

/* ---------- layout: LEFT sidebar ---------- */
.ka-main{padding:2.6rem 0 3.4rem}
.ka-layout{display:grid;grid-template-columns:320px minmax(0,1fr);gap:3rem;align-items:start}
.ka-full .ka-layout{grid-template-columns:minmax(0,1fr)}

/* ---------- hero (overlay) ---------- */
.ka-hero{position:relative;overflow:hidden;border-radius:var(--ka-radius);margin-bottom:2.6rem;background:var(--ka-ink);min-height:420px;display:flex;align-items:flex-end}
.ka-hero-media{display:block;position:absolute;inset:0}
.ka-hero-media img{width:100%;height:100%;object-fit:cover;opacity:.55}
.ka-hero-body{position:relative;padding:2.2rem;color:#fff;max-width:720px;background:linear-gradient(to top,rgba(10,14,11,.92),rgba(10,14,11,0))}
.ka-hero-body h2{font-size:2.2rem;color:#fff;margin-bottom:.5rem}
.ka-hero-body h2 a{color:#fff}
.ka-hero-body p{color:#e5e2d8;margin:0 0 .8rem}
.ka-hero-body .ka-meta,.ka-hero-body .ka-meta a{color:#cfd6cf}
.ka-eyebrow{display:inline-block;font-family:var(--ka-sans);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;font-weight:600;color:var(--ka-ink);background:var(--ka-accent);padding:.3rem .7rem;margin-bottom:.9rem}
.ka-meta{font-family:var(--ka-sans);font-size:.78rem;color:var(--ka-ink-soft);display:flex;gap:.55rem;flex-wrap:wrap;align-items:center}
.ka-meta a{color:var(--ka-ink-soft)}
.ka-section-title{display:flex;align-items:baseline;gap:.9rem;margin:0 0 1.5rem;border-bottom:2px solid var(--ka-ink);padding-bottom:.5rem}
.ka-section-title h2{margin:0;font-size:1.15rem;text-transform:uppercase;letter-spacing:.12em}

/* ---------- topics grid ---------- */
.ka-topics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;margin-bottom:2.6rem}
.ka-topic{border:1px solid var(--ka-line);background:var(--ka-card);padding:1rem 1.1rem;border-radius:var(--ka-radius)}
.ka-topic strong{display:block;font-family:var(--ka-sans);font-size:.95rem}
.ka-topic span{font-family:var(--ka-sans);font-size:.75rem;color:var(--ka-ink-soft);letter-spacing:.06em;text-transform:uppercase}

/* ---------- post list rows ---------- */
.ka-list{display:grid;gap:1.6rem}
.ka-card{display:grid;grid-template-columns:250px minmax(0,1fr);gap:1.3rem;background:var(--ka-card);border:1px solid var(--ka-line);border-radius:var(--ka-radius);overflow:hidden;align-items:stretch}
.ka-card-media{display:block;overflow:hidden;background:var(--ka-surface);min-height:180px}
.ka-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.ka-card:hover .ka-card-media img{transform:scale(1.05)}
.ka-card-body{padding:1.2rem 1.4rem 1.3rem;display:flex;flex-direction:column;gap:.5rem}
.ka-card-body h3{margin:0;font-size:1.3rem;line-height:1.28}
.ka-card-body p{margin:0;color:var(--ka-ink-soft);font-size:.98rem}
.ka-cat-tag{font-family:var(--ka-sans);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;font-weight:600;color:var(--ka-accent)}
.ka-more{font-family:var(--ka-sans);font-weight:600;font-size:.82rem;letter-spacing:.06em;text-transform:uppercase}

/* ---------- numbered most-read ---------- */
.ka-ranked{list-style:none;margin:0 0 2rem;padding:0;display:grid;gap:.2rem}
.ka-ranked li{display:flex;gap:1rem;align-items:baseline;border-bottom:1px dashed var(--ka-line);padding:.75rem 0}
.ka-ranked li:last-child{border-bottom:0}
.ka-ranked .ka-num{font-family:var(--ka-sans);font-size:1.4rem;font-weight:700;color:var(--ka-line);min-width:2.2rem}
.ka-ranked a{font-family:var(--ka-sans);font-size:1rem;font-weight:500;color:var(--ka-ink)}
.ka-ranked a:hover{color:var(--ka-brand-2)}

/* ---------- single ---------- */
.ka-article-head{margin-bottom:1.6rem}
.ka-article-head h1{font-size:2.6rem;margin-bottom:.6rem}
.ka-featured{border-radius:var(--ka-radius);overflow:hidden;margin-bottom:1.8rem}
.ka-content{font-size:1.08rem}
.ka-content h2{margin-top:2.1rem;padding-left:.8rem;border-left:4px solid var(--ka-accent)}
.ka-content h3{margin-top:1.6rem}
.ka-content ul,.ka-content ol{padding-left:1.3rem}
.ka-content li{margin-bottom:.45rem}
.ka-content a{text-decoration:underline}
.ka-tags{display:flex;gap:.5rem;flex-wrap:wrap;margin:2rem 0}
.ka-tags a{background:var(--ka-surface);border:1px solid var(--ka-line);padding:.3rem .75rem;font-family:var(--ka-sans);font-size:.76rem;color:var(--ka-ink-soft)}
.ka-authorbox{display:flex;gap:1.1rem;align-items:flex-start;background:var(--ka-surface);border-left:4px solid var(--ka-brand);padding:1.3rem;margin:2rem 0}
.ka-authorbox img{border-radius:50%}
.ka-authorbox h3{font-size:1.05rem;margin-bottom:.3rem}
.ka-postnav{display:flex;justify-content:space-between;gap:1rem;border-top:1px solid var(--ka-line);border-bottom:1px solid var(--ka-line);padding:1.1rem 0;margin:2rem 0;font-family:var(--ka-sans);font-weight:500;font-size:.9rem}
.ka-related{margin-top:2.6rem}
.ka-share{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center;margin:1.4rem 0}
.ka-share a{font-family:var(--ka-sans);font-size:.76rem;border:1px solid var(--ka-line);padding:.32rem .85rem;color:var(--ka-ink-soft)}
.ka-share a:hover{background:var(--ka-brand);color:#fff;border-color:var(--ka-brand)}
.ka-breadcrumbs{font-family:var(--ka-sans);font-size:.78rem;color:var(--ka-ink-soft);margin-bottom:1rem}

/* ---------- sidebar / widgets ---------- */
.ka-sidebar{position:sticky;top:16px}
.ka-widget{border:1px solid var(--ka-line);border-radius:var(--ka-radius);padding:1.2rem 1.25rem;margin-bottom:1.4rem;background:var(--ka-card)}
.ka-widget-title{font-family:var(--ka-sans);font-size:.78rem;text-transform:uppercase;letter-spacing:.14em;font-weight:600;color:var(--ka-brand);margin:0 0 1rem;padding-bottom:.6rem;border-bottom:1px solid var(--ka-line)}
.ka-widget ul{list-style:none;margin:0;padding:0}
.ka-widget li{padding:.45rem 0;border-bottom:1px dashed var(--ka-line);font-family:var(--ka-sans);font-size:.9rem;display:flex;justify-content:space-between;gap:.6rem}
.ka-widget li:last-child{border-bottom:0}
.ka-widget li a{color:var(--ka-ink)}
.ka-widget li a:hover{color:var(--ka-brand-2)}
.ka-about-widget{text-align:center}
.ka-about-widget img{width:86px;height:86px;border-radius:50%;margin:0 auto .8rem;object-fit:cover}
.ka-about-widget p{font-size:.94rem;color:var(--ka-ink-soft)}
.ka-recent{display:flex;gap:.85rem;align-items:flex-start;padding:.75rem 0;border-bottom:1px dashed var(--ka-line)}
.ka-recent:last-child{border-bottom:0}
.ka-recent img{width:76px;height:60px;object-fit:cover;flex:0 0 auto}
.ka-recent h4{font-family:var(--ka-sans);font-size:.9rem;line-height:1.35;margin:0 0 .25rem;font-weight:500;color:var(--ka-ink)}
.ka-recent span{font-family:var(--ka-sans);font-size:.74rem;color:var(--ka-ink-soft)}
.ka-tagcloud a{display:inline-block;background:var(--ka-surface);border:1px solid var(--ka-line);padding:.28rem .65rem;font-family:var(--ka-sans);font-size:.76rem!important;margin:0 .35rem .5rem 0;color:var(--ka-ink-soft)}
.ka-tagcloud a:hover{background:var(--ka-brand);color:#fff}
.ka-newsletter{background:var(--ka-brand);border-color:var(--ka-brand);color:#eef3ef}
.ka-newsletter .ka-widget-title{color:#fff;border-bottom-color:rgba(255,255,255,.25)}
.ka-newsletter p{font-size:.92rem;color:#dfe7e0}
.ka-newsletter input[type=email]{margin-bottom:.6rem}
.ka-newsletter button,.ka-newsletter input[type=submit]{background:var(--ka-accent);width:100%}
.ka-searchform{display:flex;gap:.5rem}
.ka-searchform input[type=search]{flex:1}

/* ---------- pagination ---------- */
.ka-pagination{margin:2.6rem 0 0;font-family:var(--ka-sans)}
.ka-pagination .page-numbers{display:inline-block;padding:.5rem .85rem;border:1px solid var(--ka-line);margin:0 .3rem .4rem 0;font-size:.86rem;color:var(--ka-ink)}
.ka-pagination .current,.ka-pagination .page-numbers:hover{background:var(--ka-brand);color:#fff;border-color:var(--ka-brand)}

/* ---------- comments ---------- */
.ka-comments{margin-top:2.6rem}
.ka-comments ol{list-style:none;padding:0}
.ka-comments .comment-body{border:1px solid var(--ka-line);background:var(--ka-card);padding:1rem 1.1rem;margin-bottom:1rem;border-radius:var(--ka-radius)}
.ka-comments .children{padding-left:1.4rem}

/* ---------- footer ---------- */
.ka-footer{background:var(--ka-ink);color:#d9d5c8;margin-top:3rem;font-size:.95rem}
.ka-footer a{color:#e8c882}
.ka-footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2.2rem;padding:3rem 0 2rem}
.ka-footer .ka-widget{background:transparent;border:0;padding:0;margin-bottom:1.4rem}
.ka-footer .ka-widget-title{color:#fff;border-bottom-color:rgba(255,255,255,.18)}
.ka-footer .ka-widget li{border-bottom-color:rgba(255,255,255,.12)}
.ka-footer .ka-widget li a,.ka-footer .ka-recent h4{color:#e6e2d6}
.ka-footer-bottom{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.15);padding:1.2rem 0;font-family:var(--ka-sans);font-size:.8rem}
.ka-footer .ka-nav a{color:#d9d5c8;font-size:.78rem}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .ka-layout{grid-template-columns:minmax(0,1fr)}
  .ka-sidebar{position:static}
  .ka-topics{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:820px){
  body{font-size:17px}
  h1{font-size:2rem}
  .ka-header-inner{flex-wrap:wrap}
  .ka-menu-toggle{display:inline-block}
  .ka-nav{flex-basis:100%;display:none}
  .ka-nav.is-open{display:block}
  .ka-nav ul{flex-direction:column;gap:.2rem}
  .ka-nav ul ul{position:static;display:flex;border:0;box-shadow:none;padding-left:1rem}
  .ka-card{grid-template-columns:minmax(0,1fr)}
  .ka-card-media{min-height:0;aspect-ratio:16/9}
  .ka-hero-body h2{font-size:1.6rem}
  .ka-footer-cols{grid-template-columns:minmax(0,1fr);gap:1rem}
}
@media (max-width:560px){
  .ka-topics{grid-template-columns:minmax(0,1fr)}
  .ka-article-head h1{font-size:1.8rem}
}