/*
Theme Name: DvlupSkills Tech
Theme URI: https://dvlupskills.com/
Author: OpenAI
Description: Premium mobile-responsive tech blog WordPress theme for DvlupSkills with seeded pages, menus, starter posts, author box, newsletter section, SEO helpers, and AdSense-ready areas.
Version: 2.0.0
Requires at least: 6.4
Tested up to: 6.8
Requires PHP: 8.0
Text Domain: dvlupskills-tech
*/

:root{
  --bg:#071120;--bg2:#10203a;--surface:#121c33;--surface2:#1b2b4d;--text:#eaf1ff;--muted:#adbbd8;
  --primary:#69a9ff;--accent:#64efc3;--violet:#8d7dff;--body:#f5f8fe;--card:#ffffff;--ink:#0f172a;
  --line:#d9e2f2;--shadow:0 18px 50px rgba(15,23,42,.09);--radius:22px;--radius-sm:16px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--body);color:var(--ink);line-height:1.72}
img{max-width:100%;height:auto;border-radius:14px}a{color:#1858d8;text-decoration:none}a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.18;margin:0 0 12px}p{margin:0 0 16px}
.container{width:min(1220px,92%);margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(7,17,32,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:18px}
.brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:800;font-size:1.22rem}
.brand-badge{width:46px;height:46px;border-radius:15px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--accent));color:#08111f;font-weight:900;box-shadow:0 8px 26px rgba(105,169,255,.35)}
.nav-menu,.footer-menu,.category-menu{display:flex;gap:16px;list-style:none;padding:0;margin:0;flex-wrap:wrap}
.nav-menu a,.footer-menu a{color:#fff;font-weight:700}
.hero{background:
linear-gradient(135deg,rgba(7,17,32,.98),rgba(16,32,58,.96) 45%,rgba(27,43,77,.94)),
radial-gradient(circle at top right,rgba(100,239,195,.18),transparent 30%),
radial-gradient(circle at left center,rgba(105,169,255,.15),transparent 28%);
color:#fff;padding:78px 0 54px}
.hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:26px;align-items:stretch}
.hero-copy h1{font-size:clamp(2.2rem,4.9vw,4.15rem);line-height:1.02;margin-bottom:14px}
.hero-copy p{font-size:1.07rem;color:#dbe7ff;max-width:760px}
.tag{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:rgba(255,255,255,.10);color:#fff;font-size:.86rem;font-weight:800;margin-bottom:16px;border:1px solid rgba(255,255,255,.12)}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.btn{display:inline-block;padding:13px 18px;border-radius:14px;font-weight:800}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:#071120}
.btn-secondary{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);color:#fff}
.btn-dark{background:#0f172a;color:#fff}
.hero-side,.panel,.post-card,.widget,.content-card,.archive-card,.legal-card,.stat-card,.category-card,.newsletter-card,.author-box,.toc-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow)}
.hero-side{padding:24px}
.hero-side h3{margin-bottom:10px}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px}
.stat-card{padding:18px}
.stat-card strong{display:block;font-size:1.2rem}
.section{padding:44px 0}
.section-title{font-size:1.9rem;margin-bottom:20px}
.section-subtitle{color:#55637b;max-width:760px;margin-top:-8px;margin-bottom:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.post-card,.archive-card,.category-card,.legal-card,.widget,.newsletter-card,.author-box,.toc-card,.panel{padding:22px}
.post-card h3,.archive-card h2{font-size:1.28rem}
.post-card .meta,.archive-card .meta,.single-meta,.mini-meta{color:#667085;font-size:.93rem}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px}
.badge{display:inline-block;padding:6px 10px;border-radius:999px;background:#edf4ff;color:#15315f;font-weight:800;font-size:.8rem}
.badge-green{background:#e9fff8;color:#065f46}
.badge-violet{background:#f1ecff;color:#5137b0}
.badge-dark{background:#eef2f7;color:#1f2937}
.site-main{padding:34px 0}
.content-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(300px,.9fr);gap:26px}
.single-content{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:30px}
.single-content h1{font-size:clamp(2rem,3.6vw,3rem)}
.single-content ul,.single-content ol{padding-left:22px}
.entry-content pre,.entry-content code{max-width:100%;overflow:auto}
.ad-slot{border:2px dashed #bdd0ef;border-radius:18px;padding:22px;text-align:center;background:#f8fbff;color:#456;font-size:.95rem}
.highlight-row{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
.feature-list{display:grid;gap:12px}
.feature-item{display:flex;gap:12px;align-items:flex-start;padding:14px;border-radius:16px;background:#f7faff;border:1px solid #e3eaf7}
.feature-dot{width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#071120;font-weight:900}
.category-card{border:1px solid #e7edf7}
.category-card p{color:#5b677d}
.author-box{display:grid;grid-template-columns:82px 1fr;gap:18px;align-items:start;margin-top:30px}
.author-avatar{width:82px;height:82px;border-radius:22px;background:linear-gradient(135deg,var(--primary),var(--accent));display:grid;place-items:center;font-size:1.7rem;font-weight:900;color:#071120}
.newsletter-card{background:linear-gradient(135deg,#0d1b34,#12264b);color:#fff;border:1px solid rgba(255,255,255,.05)}
.newsletter-form{display:grid;grid-template-columns:1fr auto;gap:12px;margin-top:14px}
input[type="text"],input[type="email"],textarea{width:100%;padding:13px 14px;border:1px solid #c9d6eb;border-radius:14px;background:#fff;color:#111827}
.newsletter-card input[type="email"]{background:rgba(255,255,255,.96)}
button,input[type="submit"]{padding:13px 18px;border:0;border-radius:14px;background:#0f172a;color:#fff;font-weight:800;cursor:pointer}
.sidebar-stack{display:grid;gap:20px}
.toc-card ul{margin:0;padding-left:20px}
.page-header{padding:36px 0 8px}
.page-header h1{font-size:2.2rem}
.breadcrumb{font-size:.92rem;color:#62708a}
.site-footer{background:#071120;color:#d7e2fb;padding:46px 0 24px;margin-top:42px}
.site-footer a{color:#fff}.footer-grid{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:24px}
.post-grid-featured{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
.featured-main{padding:28px;background:linear-gradient(135deg,#fff,#f7fbff);border-radius:var(--radius);box-shadow:var(--shadow)}
.featured-list{display:grid;gap:16px}
hr.soft{border:none;border-top:1px solid #e6edf7;margin:22px 0}
.category-strip{display:flex;gap:12px;flex-wrap:wrap}
.category-pill{display:inline-block;padding:10px 14px;border-radius:999px;background:#fff;border:1px solid #dce6f6;color:#16345f;font-weight:700;box-shadow:var(--shadow)}
.muted{color:#62708a}
@media (max-width:1040px){
  .hero-grid,.content-layout,.footer-grid,.grid-4,.grid-3,.grid-2,.highlight-row,.post-grid-featured{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr 1fr 1fr}
}
@media (max-width:760px){
  .header-inner{flex-direction:column;align-items:flex-start}
  .newsletter-form{grid-template-columns:1fr}
  .author-box{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr}
  .hero{padding-top:60px}
}


/* v3 enhancements */
.nav-fallback{display:flex;gap:16px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.nav-fallback a{color:#fff;font-weight:700}
.hero-side .ad-slot{min-height:120px;display:grid;place-items:center}
.metrics .stat-card{min-height:88px}
.topics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.topic-box{background:#fff;border:1px solid #e7edf7;border-radius:18px;padding:18px;box-shadow:var(--shadow)}
.topic-box h3{font-size:1.05rem;margin-bottom:8px}
.topic-box p{color:#5d6980;font-size:.95rem}
.home-dual{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.empty-state{background:#fff;border-radius:20px;box-shadow:var(--shadow);padding:22px}
.post-card,.archive-card,.featured-main,.hero-side,.newsletter-card,.topic-box,.feature-item,.stat-card{transition:transform .2s ease, box-shadow .2s ease}
.post-card:hover,.archive-card:hover,.featured-main:hover,.topic-box:hover{transform:translateY(-3px)}
@media (max-width:1040px){.topics-grid,.home-dual{grid-template-columns:1fr 1fr}}
@media (max-width:760px){.topics-grid,.home-dual{grid-template-columns:1fr}}