/*
Theme Name: SNG Vision Nest
Theme URI: https://www.sngvisionnest.com/
Author: SNG Vision Nest
Description: Premium dark-tech WordPress theme for the SNG Vision Nest electronics, electrical and embedded technology blog.
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: sng-vision-nest
*/

:root{
  --bg:#071019;--surface:#0c1722;--surface2:#101e2b;--surface3:#142536;
  --line:#1c3042;--text:#eef5f8;--muted:#91a7b8;--faint:#60788b;
  --cyan:#5fe3c6;--copper:#e09a58;--white:#fff;
  --max:1180px;--radius:18px;--shadow:0 18px 55px rgba(0,0,0,.28);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,sans-serif;line-height:1.65}
a{text-decoration:none;color:inherit}
button,input{font:inherit}
img{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:auto;padding:0 26px}
h1,h2,h3,h4{font-family:Sora,Inter,sans-serif;letter-spacing:-.025em;margin:0}
::selection{background:var(--cyan);color:#06110f}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

header{
  position:sticky;top:0;z-index:100;
  background:rgba(7,16,25,.82);backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(95,227,198,.08)
}
.nav{height:74px;display:flex;align-items:center;justify-content:space-between;gap:25px}
.brand{display:flex;align-items:center;gap:10px;font:700 1.08rem Sora;white-space:nowrap}
.brand svg{width:34px;height:34px}.brand-logo-img{width:48px;height:48px;object-fit:contain;border-radius:10px;display:block;filter:drop-shadow(0 4px 10px rgba(0,0,0,.35))}
.brand span span{color:var(--copper)}
nav{display:flex;align-items:center;gap:27px}
nav a{color:var(--muted);font-size:.9rem;transition:.2s}
nav a:hover,nav a.active{color:var(--white)}
.nav-right{display:flex;align-items:center;gap:10px}
.search-btn,.menu{
  width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  background:transparent;color:var(--text);cursor:pointer;display:grid;place-items:center
}
.subscribe,.btn{
  border:0;border-radius:999px;padding:11px 18px;font-weight:700;cursor:pointer;
  background:var(--copper);color:#1a1007;transition:.2s
}
.subscribe:hover,.btn:hover{transform:translateY(-2px);background:#f0aa68}
.menu{display:none}

.hero{
  position:relative;overflow:hidden;padding:82px 0 72px;
  border-bottom:1px solid var(--line)
}
.hero:before{
  content:"";position:absolute;width:650px;height:650px;right:-260px;top:-300px;
  background:radial-gradient(circle,rgba(95,227,198,.11),transparent 65%);pointer-events:none
}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:65px;align-items:center}
.kicker{display:inline-flex;align-items:center;gap:9px;color:var(--cyan);font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.13em;margin-bottom:20px}
.kicker i{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 14px var(--cyan)}
.hero h1{font-size:clamp(2.35rem,5vw,4.2rem);line-height:1.08}
.hero h1 em{font-style:normal;color:var(--cyan)}
.hero p{color:var(--muted);font-size:1.05rem;max-width:650px;margin:22px 0 0}
.hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.outline{border:1px solid var(--line);background:transparent;color:var(--text)}
.outline:hover{border-color:var(--cyan);color:var(--cyan);background:transparent}
.hero-meta{display:flex;gap:25px;margin-top:35px;color:var(--faint);font-size:.83rem}
.hero-meta strong{color:var(--text);display:block;font:700 1.1rem Sora}

.hero-art{
  min-height:355px;border:1px solid var(--line);border-radius:24px;background:
  radial-gradient(circle at 25% 25%,rgba(95,227,198,.11),transparent 34%),
  radial-gradient(circle at 80% 75%,rgba(224,154,88,.1),transparent 35%),var(--surface);
  position:relative;overflow:hidden;box-shadow:var(--shadow)
}
.hero-art:before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(95,227,198,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(95,227,198,.05) 1px,transparent 1px);
  background-size:36px 36px;mask-image:linear-gradient(to bottom right,#000,transparent)
}
.circuit{position:absolute;inset:25px;width:calc(100% - 50px);height:calc(100% - 50px)}
.trace{fill:none;stroke:var(--cyan);stroke-width:2;stroke-linecap:round;stroke-dasharray:500;stroke-dashoffset:500;animation:draw 2.5s ease forwards}
.trace.c{stroke:var(--copper);animation-delay:.4s}
.node{fill:var(--bg);stroke:var(--cyan);stroke-width:2}
.node.c{stroke:var(--copper)}
.chip{fill:#0a1721;stroke:var(--line);stroke-width:2}
@keyframes draw{to{stroke-dashoffset:0}}
.float-card{
  position:absolute;right:25px;bottom:24px;background:rgba(12,23,34,.9);
  border:1px solid var(--line);padding:13px 15px;border-radius:13px;font-size:.78rem;color:var(--muted);
  backdrop-filter:blur(8px)
}
.float-card b{display:block;color:var(--text);font-family:Sora;margin-bottom:2px}

.categories{padding:25px 0;border-bottom:1px solid var(--line);overflow:auto}
.cat-list{display:flex;gap:10px;min-width:max-content}
.cat{
  border:1px solid var(--line);padding:9px 15px;border-radius:999px;color:var(--muted);font-size:.83rem;transition:.2s
}
.cat:hover{border-color:var(--cyan);color:var(--cyan)}

.section{padding:70px 0}
.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:30px}
.section-head h2{font-size:1.85rem}
.section-head p{color:var(--muted);margin:7px 0 0;font-size:.92rem}
.view{color:var(--cyan);font-weight:700;font-size:.86rem;white-space:nowrap}

.feature{display:grid;grid-template-columns:1.25fr .75fr;gap:24px}
.feature-card,.post-card,.category-card,.popular{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s
}
.feature-card:hover,.post-card:hover,.category-card:hover{transform:translateY(-5px);border-color:#2e4a5e;box-shadow:var(--shadow)}
.visual{
  height:260px;position:relative;overflow:hidden;
  background:radial-gradient(circle at 30% 35%,rgba(95,227,198,.2),transparent 30%),linear-gradient(135deg,#0b1824,#172b3c)
}
.visual:after{
  content:"";position:absolute;inset:0;background:linear-gradient(transparent 55%,rgba(7,16,25,.9))
}
.visual .label{position:absolute;z-index:2;left:20px;top:20px;background:rgba(7,16,25,.78);border:1px solid var(--line);padding:5px 10px;border-radius:999px;color:var(--cyan);font-size:.72rem;font-weight:700}
.visual-art{position:absolute;inset:0;opacity:.8}
.visual-art svg{width:100%;height:100%}
.feature-body{padding:25px}
.tag{color:var(--cyan);font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;font-weight:700}
.feature-body h3{font-size:1.48rem;line-height:1.3;margin:9px 0 10px}
.feature-body p,.post-card p{color:var(--muted);font-size:.9rem;margin:0}
.meta{display:flex;gap:14px;color:var(--faint);font-size:.76rem;margin-top:17px}

.side-posts{display:flex;flex-direction:column}
.side-post{padding:0 0 20px;margin-bottom:20px;border-bottom:1px solid var(--line)}
.side-post:last-child{border:0;margin:0;padding:0}
.side-post h4{font-size:.99rem;line-height:1.4;margin-top:7px}
.side-post .meta{margin-top:9px}

.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-card{padding:0 0 20px}
.post-image{height:145px;background:linear-gradient(135deg,#102131,#0b151f);position:relative;overflow:hidden}
.post-image:before{
  content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(95,227,198,.18);
  border-radius:50%;left:-35px;top:-55px;box-shadow:80px 60px 0 -35px rgba(95,227,198,.04)
}
.post-image.copper:before{border-color:rgba(224,154,88,.2)}
.post-image span{position:absolute;left:15px;bottom:13px;padding:4px 9px;border-radius:7px;background:rgba(7,16,25,.8);font-size:.68rem;color:var(--cyan);z-index:2}
.post-card .inner{padding:18px 18px 0}
.post-card h3{font-size:1rem;line-height:1.42;margin:7px 0 8px}

.topic-section{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.topics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.category-card{padding:22px}
.icon{width:43px;height:43px;border-radius:12px;display:grid;place-items:center;background:rgba(95,227,198,.08);color:var(--cyan);margin-bottom:18px}
.category-card:nth-child(even) .icon{color:var(--copper);background:rgba(224,154,88,.08)}
.category-card h3{font-size:1rem}
.category-card p{color:var(--muted);font-size:.8rem;margin:7px 0 14px}
.category-card a{color:var(--cyan);font-size:.78rem;font-weight:700}

.popular-layout{display:grid;grid-template-columns:1fr .8fr;gap:30px}
.popular{padding:0}
.pop-item{display:flex;gap:18px;padding:20px;border-bottom:1px solid var(--line)}
.pop-item:last-child{border:0}
.num{font:800 1.5rem Sora;color:var(--copper);min-width:30px}
.pop-item h4{font-size:.93rem;line-height:1.4}
.pop-item small{color:var(--faint)}
.about-box{padding:34px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(145deg,var(--surface2),var(--surface))}
.about-box h3{font-size:1.35rem}
.about-box p{color:var(--muted);font-size:.9rem}
.pill-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.pill{border:1px solid var(--line);border-radius:999px;padding:6px 10px;font-size:.72rem;color:var(--muted)}

.newsletter{padding:42px;border-radius:22px;border:1px solid #28465a;background:
radial-gradient(circle at 80% 20%,rgba(95,227,198,.12),transparent 30%),var(--surface2);
display:flex;align-items:center;justify-content:space-between;gap:30px}
.newsletter h2{font-size:1.55rem}
.newsletter p{color:var(--muted);max-width:560px;margin:7px 0 0;font-size:.9rem}
.news-form{display:flex;gap:9px;min-width:360px}
.news-form input{flex:1;min-width:0;background:var(--bg);border:1px solid var(--line);color:var(--text);padding:12px 15px;border-radius:999px;outline:none}
.news-form input:focus{border-color:var(--cyan)}

footer{border-top:1px solid var(--line);padding:55px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:35px}
.footer-brand p{color:var(--muted);font-size:.85rem;max-width:350px}
.footer h5{color:var(--faint);font:700 .78rem Sora;text-transform:uppercase;letter-spacing:.08em;margin:0 0 15px}
.footer li{margin:9px 0}
.footer li a{color:var(--muted);font-size:.82rem}
.footer li a:hover{color:var(--cyan)}
.social{display:flex;gap:8px;margin-top:18px}
.social a{width:34px;height:34px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;color:var(--muted)}
.bottom{border-top:1px solid var(--line);padding-top:22px;color:var(--faint);font-size:.72rem;display:flex;justify-content:space-between;gap:20px}

.search-modal{position:fixed;inset:0;background:rgba(2,7,12,.75);backdrop-filter:blur(8px);z-index:200;display:none;place-items:start center;padding-top:12vh}
.search-modal.open{display:grid}
.search-box{width:min(650px,calc(100% - 30px));background:var(--surface2);border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:var(--shadow)}
.search-box input{width:100%;padding:15px;background:var(--bg);border:1px solid var(--line);border-radius:12px;color:var(--text);outline:none}
.search-results{margin-top:15px;color:var(--muted);font-size:.85rem}
.close-search{float:right;background:none;border:0;color:var(--muted);cursor:pointer}


.article-modal{position:fixed;inset:0;z-index:300;display:none;background:rgba(2,7,12,.82);backdrop-filter:blur(12px);overflow:auto;padding:5vh 18px}
.article-modal.open{display:block}
.article-dialog{max-width:850px;margin:auto;background:var(--surface);border:1px solid var(--line);border-radius:22px;box-shadow:0 30px 100px rgba(0,0,0,.55);overflow:hidden}
.article-cover{height:250px;background:
radial-gradient(circle at 25% 35%,rgba(95,227,198,.2),transparent 32%),
radial-gradient(circle at 80% 70%,rgba(224,154,88,.16),transparent 32%),#0d1b28;position:relative}
.article-cover svg{width:100%;height:100%}
.article-close{position:absolute;right:18px;top:16px;width:38px;height:38px;border:1px solid var(--line);border-radius:50%;background:rgba(7,16,25,.8);color:var(--text);cursor:pointer;font-size:18px;z-index:2}
.article-content{padding:34px}
.article-content .tag{display:inline-block}
.article-content h2{font-size:clamp(1.7rem,4vw,2.35rem);line-height:1.2;margin:9px 0 12px}
.article-content .article-meta{color:var(--faint);font-size:.8rem;margin-bottom:24px}
.article-content p{color:var(--muted);font-size:.97rem}
.article-content h3{font-size:1.15rem;margin:25px 0 7px}
.article-content .demo-note{border-left:3px solid var(--cyan);background:rgba(95,227,198,.06);padding:13px 16px;border-radius:0 10px 10px 0;color:#b9d0d7;font-size:.86rem;margin-top:22px}
.read-btn{display:inline-flex;margin-top:18px;color:var(--cyan);font-weight:700;font-size:.8rem}
.clickable{cursor:pointer}

@media(max-width:950px){
  .topics{grid-template-columns:repeat(2,1fr)}
  nav{display:none}.menu{display:grid}
  nav.open{display:flex;position:absolute;top:74px;left:0;right:0;background:var(--bg);padding:18px 26px 25px;flex-direction:column;align-items:flex-start;border-bottom:1px solid var(--line)}
  .hero-grid{grid-template-columns:1fr}.hero-art{min-height:300px}
  .feature,.popular-layout{grid-template-columns:1fr}.topics{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
}
@media(max-width:650px){
  .topics{grid-template-columns:1fr 1fr}
  .wrap{padding:0 17px}.nav{height:66px}.brand{font-size:.94rem}.brand-logo-img{width:42px;height:42px}.subscribe{padding:9px 13px;font-size:.78rem}
  .hero{padding:58px 0 45px}.hero h1{font-size:2.35rem}.hero-meta{gap:17px}
  .hero-art{min-height:260px}.circuit{inset:15px;width:calc(100% - 30px);height:calc(100% - 30px)}
  .section{padding:52px 0}.section-head{display:block}.view{display:inline-block;margin-top:13px}
  .posts{grid-template-columns:1fr}.topics{grid-template-columns:1fr 1fr}
  .newsletter{padding:28px;display:block}.news-form{min-width:0;margin-top:20px;flex-direction:column}
  .footer-grid{grid-template-columns:1fr 1fr}.bottom{display:block}.bottom span{display:block;margin-top:6px}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

/* WordPress dynamic content helpers */
.wp-post-image{width:100%;height:100%;object-fit:cover}.post-card a{display:block}.post-card{overflow:hidden}.screen-reader-text{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.pagination{display:flex;gap:8px;justify-content:center;margin:35px 0}.pagination a,.pagination span{padding:10px 14px;border:1px solid var(--line);border-radius:10px}.pagination .current{background:var(--copper);color:#1a1007;border-color:var(--copper)}.single-wrap{max-width:900px;margin:0 auto;padding:70px 26px}.single-cover{min-height:280px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(135deg,#0d2430,#13202d);display:grid;place-items:center;overflow:hidden;margin:28px 0}.single-cover img{width:100%;height:100%;max-height:430px;object-fit:cover}.single-content{font-size:1.06rem;color:#cbd7de}.single-content h2,.single-content h3{color:var(--text);margin-top:34px}.single-content p{margin:0 0 20px}.single-content img{border-radius:16px;margin:25px 0}.single-meta{color:var(--muted);margin-top:12px}.cat-link{color:var(--cyan)}.archive-head{padding:70px 0 30px}.empty-state{padding:70px 0;text-align:center;color:var(--muted)}


@media(max-width:950px){header nav.open{display:flex;position:absolute;top:74px;left:0;right:0;background:var(--bg);padding:18px 26px 25px;flex-direction:column;align-items:flex-start;border-bottom:1px solid var(--line);box-shadow:0 20px 35px rgba(0,0,0,.25)}}
.form-notice,.subscribe-notice{max-width:900px;margin:20px auto;padding:13px 16px;border-radius:12px;border:1px solid var(--line);background:var(--surface2)}
.form-notice.success,.subscribe-notice.success{border-color:rgba(95,227,198,.45);color:var(--cyan)}.form-notice.error,.subscribe-notice.error{border-color:rgba(224,154,88,.45);color:var(--copper)}
.contribute-form{display:grid;gap:18px;margin-top:30px;max-width:760px}.contribute-form label{display:grid;gap:7px;color:var(--muted);font-size:.85rem;font-weight:600}.contribute-form input,.contribute-form textarea,.contribute-form select{width:100%;background:var(--surface2);border:1px solid var(--line);color:var(--text);padding:13px 15px;border-radius:12px;outline:none}.contribute-form textarea{resize:vertical;min-height:220px}.contribute-form input:focus,.contribute-form textarea:focus,.contribute-form select:focus{border-color:var(--cyan)}
.news-form{display:flex;gap:9px;min-width:360px}.news-form input{flex:1;min-width:0;background:var(--bg);border:1px solid var(--line);color:var(--text);padding:12px 15px;border-radius:999px;outline:none}.news-form input:focus{border-color:var(--cyan)}
.subscribe-notice{position:fixed;right:20px;bottom:20px;z-index:500;margin:0;box-shadow:var(--shadow)}@media(max-width:650px){.news-form{min-width:0;margin-top:20px;flex-direction:column}.subscribe-notice{left:17px;right:17px;bottom:17px}}