/*
Theme Name: Madhukar AdSense
Theme URI: https://madhukarreddy.com
Author: Madhukar Reddy
Author URI: https://madhukarreddy.com
Description: A production-grade, AdSense-optimized blogging theme with 6 strategic ad placements, cookie consent, privacy compliance, and editorial magazine aesthetics. Built for DevOps & Cloud content.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Tags: blog, adsense, one-column, two-columns, custom-menu, featured-images, threaded-comments, translation-ready
Text Domain: madhukar-adsense
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.0
*/

/* ─── Variables ──────────────────────────────────────────── */
:root {
  --ink: #16161a;
  --ink-light: #3b3b4f;
  --ink-muted: #72728a;
  --paper: #fafaf9;
  --paper-warm: #f4f2ee;
  --paper-dark: #eae7e0;
  --accent: #c44b2b;
  --accent-hover: #a63a20;
  --accent-light: #fdf0ec;
  --success: #2d6a4f;
  --border: #d6d2ca;
  --border-light: #e9e6df;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.07);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.1);
  --radius: 6px;
  --radius-lg: 12px;
  --max-w: 1200px;
  --content-w: 740px;
  --serif: 'Playfair Display', Georgia, serif;
  --sans: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'Fira Code', 'JetBrains Mono', monospace;
}

/* ─── Reset ──────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.75;font-size:17px}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
::selection{background:var(--accent);color:#fff}
button{cursor:pointer;font-family:inherit}
input,textarea,select{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,h5,h6{font-family:var(--serif);font-weight:700;line-height:1.2;color:var(--ink)}

/* ─── Utility ────────────────────────────────────────────── */
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}
.narrow{max-width:var(--content-w);margin:0 auto}
.screen-reader-text{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px)}

/* ─── Header ─────────────────────────────────────────────── */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(250,250,249,0.95);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border-light);
}
.header-inner{
  max-width:var(--max-w);margin:0 auto;padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;height:70px;
}
.site-logo{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-size:1.4rem;color:var(--ink);font-weight:700}
.logo-mark{width:36px;height:36px;background:var(--accent);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-family:var(--serif);font-size:1rem}
.main-nav ul{display:flex;gap:28px;list-style:none}
.main-nav a{font-size:.88rem;font-weight:600;color:var(--ink-muted);letter-spacing:.02em;text-transform:uppercase;transition:color .2s}
.main-nav a:hover,.main-nav .current-menu-item a,.main-nav .current_page_item a{color:var(--accent)}
.nav-toggle{display:none;background:none;border:none;flex-direction:column;gap:5px;padding:8px}
.nav-toggle span{width:22px;height:2px;background:var(--ink);transition:.2s}

@media(max-width:768px){
  .main-nav ul{display:none;position:absolute;top:70px;left:0;right:0;background:var(--paper);flex-direction:column;padding:24px;gap:16px;border-bottom:1px solid var(--border-light);box-shadow:var(--shadow-md)}
  .main-nav.open ul{display:flex}
  .nav-toggle{display:flex}
}

/* ─── AdSense Slots ──────────────────────────────────────── */
.ad-slot{margin:32px auto;text-align:center;overflow:hidden;min-height:90px}
.ad-slot-header{margin:16px auto;min-height:90px;max-width:var(--max-w);padding:0 24px}
.ad-slot-sidebar{margin:0 0 24px;min-height:250px}
.ad-slot-in-feed{margin:24px 0;min-height:120px}
.ad-slot-in-article{margin:36px 0;min-height:280px}
.ad-slot ins{display:block}

/* ─── Hero ───────────────────────────────────────────────── */
.hero{padding:72px 24px 56px;text-align:center;background:linear-gradient(180deg,var(--paper),var(--paper-warm));border-bottom:1px solid var(--border-light)}
.hero h1{font-size:clamp(2rem,5vw,3.2rem);margin-bottom:14px;letter-spacing:-.02em}
.hero p{font-size:1.1rem;color:var(--ink-muted);max-width:540px;margin:0 auto 28px}
.hero-search{display:flex;max-width:460px;margin:0 auto;background:#fff;border-radius:50px;border:1px solid var(--border);overflow:hidden;box-shadow:var(--shadow-sm)}
.hero-search input{flex:1;padding:13px 22px;border:none;outline:none;font-size:.92rem;background:transparent}
.hero-search button{padding:13px 24px;background:var(--accent);color:#fff;font-weight:700;font-size:.88rem;border:none;cursor:pointer;transition:background .2s}
.hero-search button:hover{background:var(--accent-hover)}

/* ─── Post Cards ─────────────────────────────────────────── */
.posts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:30px;padding:44px 0}
.post-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-light);transition:all .3s ease}
.post-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.post-card-thumb{width:100%;height:220px;object-fit:cover;background:var(--paper-dark)}
.post-card-thumb-placeholder{width:100%;height:220px;display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:3rem;color:var(--border);background:var(--paper-warm)}
.post-card-body{padding:22px}
.post-card-meta{display:flex;align-items:center;gap:10px;font-size:.78rem;color:var(--ink-muted);margin-bottom:10px}
.post-cat{padding:3px 10px;border-radius:50px;font-size:.72rem;font-weight:700;color:#fff;text-transform:uppercase;letter-spacing:.04em;background:var(--accent)}
.post-card h3{font-size:1.3rem;margin-bottom:8px;line-height:1.3}
.post-card h3 a{color:var(--ink);transition:color .2s}
.post-card h3 a:hover{color:var(--accent)}
.post-card-excerpt{color:var(--ink-muted);font-size:.9rem;line-height:1.55;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.post-card-footer{display:flex;align-items:center;justify-content:space-between;padding-top:14px;border-top:1px solid var(--border-light);font-size:.8rem;color:var(--ink-muted)}
.post-card-author{display:flex;align-items:center;gap:7px}
.author-avatar-sm{width:26px;height:26px;border-radius:50%;background:var(--accent-light);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:700}

/* ─── Featured Post ──────────────────────────────────────── */
.featured-post{display:grid;grid-template-columns:1.2fr 1fr;background:#fff;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-light);margin-bottom:44px;box-shadow:var(--shadow-md)}
.featured-post .thumb{width:100%;height:100%;min-height:340px;object-fit:cover}
.featured-post .body{padding:44px 36px;display:flex;flex-direction:column;justify-content:center}
.featured-badge{display:inline-flex;align-items:center;gap:5px;padding:4px 14px;border-radius:50px;font-size:.72rem;font-weight:700;background:var(--accent-light);color:var(--accent);text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px;width:fit-content}
.featured-post h2{font-size:1.9rem;margin-bottom:14px}
.featured-post h2 a:hover{color:var(--accent)}
.featured-excerpt{color:var(--ink-muted);font-size:1rem;line-height:1.65;margin-bottom:20px}
@media(max-width:768px){.featured-post{grid-template-columns:1fr}.featured-post .thumb{min-height:220px}.featured-post .body{padding:24px 20px}}

/* ─── Single Post ────────────────────────────────────────── */
.single-header{text-align:center;padding:48px 24px 0}
.single-header h1{font-size:clamp(1.8rem,4.5vw,2.8rem);margin-bottom:18px;letter-spacing:-.02em}
.single-meta{display:flex;align-items:center;justify-content:center;gap:16px;font-size:.88rem;color:var(--ink-muted);flex-wrap:wrap;margin-bottom:36px}
.single-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--border)}
.single-cover{width:100%;max-height:480px;object-fit:cover;border-radius:var(--radius-lg);margin-bottom:40px}

/* Article content */
.entry-content{font-size:1.1rem;line-height:1.85;color:var(--ink-light)}
.entry-content h2{font-size:1.6rem;margin:44px 0 18px;padding-top:24px;border-top:1px solid var(--border-light)}
.entry-content h3{font-size:1.3rem;margin:32px 0 14px}
.entry-content p{margin-bottom:22px}
.entry-content a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.entry-content img{border-radius:var(--radius);margin:28px 0;box-shadow:var(--shadow-md)}
.entry-content blockquote{border-left:3px solid var(--accent);padding:16px 24px;margin:28px 0;background:var(--accent-light);border-radius:0 var(--radius) var(--radius) 0;font-family:var(--serif);font-size:1.15rem;font-style:italic}
.entry-content pre{background:#1e1e2e;color:#cdd6f4;padding:22px;border-radius:var(--radius);overflow-x:auto;margin:28px 0;font-family:var(--mono);font-size:.9rem;line-height:1.6;position:relative}
.entry-content code{font-family:var(--mono);font-size:.87em;background:var(--paper-dark);padding:2px 6px;border-radius:3px}
.entry-content pre code{background:none;padding:0;font-size:1em}
.entry-content ul,.entry-content ol{margin-bottom:22px;padding-left:28px}
.entry-content li{margin-bottom:8px}
.entry-content table{width:100%;border-collapse:collapse;margin:28px 0}
.entry-content th,.entry-content td{padding:12px 16px;border:1px solid var(--border);text-align:left}
.entry-content th{background:var(--paper-warm);font-weight:700}

/* ─── TOC ────────────────────────────────────────────────── */
.toc-box{background:var(--paper-warm);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:20px 24px;margin:0 0 32px}
.toc-box h4{font-family:var(--sans);font-weight:700;font-size:.85rem;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-muted);margin-bottom:12px}
.toc-box ul{list-style:none;padding:0}
.toc-box li{padding:4px 0}
.toc-box a{font-size:.9rem;color:var(--ink-light);transition:color .2s}
.toc-box a:hover{color:var(--accent)}
.toc-box .toc-h3{padding-left:16px;font-size:.85rem}

/* ─── Sharing ────────────────────────────────────────────── */
.share-buttons{display:flex;gap:10px;margin:32px 0;padding-top:24px;border-top:1px solid var(--border-light);flex-wrap:wrap}
.share-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;border-radius:50px;font-size:.82rem;font-weight:600;color:#fff;text-decoration:none;transition:opacity .2s}
.share-btn:hover{opacity:.85;color:#fff}
.share-btn.tw{background:#1DA1F2}
.share-btn.li{background:#0A66C2}
.share-btn.fb{background:#1877F2}

/* ─── Author Box ─────────────────────────────────────────── */
.author-box{display:flex;gap:18px;padding:28px;background:var(--paper-warm);border-radius:var(--radius-lg);margin:40px 0;border:1px solid var(--border-light)}
.author-box .avatar{width:60px;height:60px;border-radius:50%;flex-shrink:0;object-fit:cover}
.author-box .avatar-placeholder{width:60px;height:60px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:1.3rem;flex-shrink:0}
.author-box h4{font-family:var(--sans);font-weight:700;margin-bottom:4px}
.author-box p{font-size:.88rem;color:var(--ink-muted)}

/* ─── Related Posts ──────────────────────────────────────── */
.related-posts{margin-top:56px;padding-top:40px;border-top:1px solid var(--border-light)}
.related-posts h3{font-size:1.4rem;margin-bottom:22px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:768px){.related-grid{grid-template-columns:1fr}}
.related-card{padding:18px;background:var(--paper-warm);border-radius:var(--radius)}
.related-card h4{font-size:1rem;margin-bottom:6px;line-height:1.3}
.related-card h4 a:hover{color:var(--accent)}
.related-card .meta{font-size:.8rem;color:var(--ink-muted)}

/* ─── Sidebar ────────────────────────────────────────────── */
.content-with-sidebar{display:grid;grid-template-columns:1fr 320px;gap:44px;max-width:var(--max-w);margin:0 auto;padding:0 24px}
@media(max-width:960px){.content-with-sidebar{grid-template-columns:1fr}}
.sidebar .widget{background:#fff;border-radius:var(--radius-lg);padding:22px;border:1px solid var(--border-light);margin-bottom:22px}
.sidebar .widget h4{font-family:var(--sans);font-weight:700;font-size:.82rem;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-muted);margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--accent)}
.sidebar .widget ul{list-style:none;padding:0}
.sidebar .widget li{padding:7px 0;border-bottom:1px solid var(--border-light);font-size:.9rem}
.sidebar .widget li:last-child{border:none}
.sidebar .widget li a:hover{color:var(--accent)}

/* ─── Newsletter ─────────────────────────────────────────── */
.newsletter-box{background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:32px;margin:40px 0;text-align:center}
.newsletter-box h3{font-size:1.3rem;margin-bottom:8px;color:#fff}
.newsletter-box p{color:rgba(255,255,255,.7);margin-bottom:18px;font-size:.92rem}
.newsletter-form{display:flex;max-width:400px;margin:0 auto;gap:8px}
.newsletter-form input{flex:1;padding:11px 16px;border:1px solid rgba(255,255,255,.2);border-radius:var(--radius);font-size:.9rem;background:rgba(255,255,255,.1);color:#fff}
.newsletter-form input::placeholder{color:rgba(255,255,255,.5)}
.newsletter-form button{padding:11px 20px;border:none;border-radius:var(--radius);background:var(--accent);color:#fff;font-weight:700;font-size:.88rem;cursor:pointer}

/* ─── Comments ───────────────────────────────────────────── */
.comments-area{margin-top:56px}
.comments-area h3{font-size:1.3rem;margin-bottom:24px}
.comment-list{list-style:none;padding:0}
.comment{padding:20px 0;border-bottom:1px solid var(--border-light)}
.comment .comment-author{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.comment .comment-author img{width:36px;height:36px;border-radius:50%}
.comment .comment-author .fn{font-weight:700;font-size:.92rem}
.comment .comment-meta{font-size:.78rem;color:var(--ink-muted)}
.comment .comment-content p{font-size:.92rem;color:var(--ink-light)}
.comment-respond{margin-top:32px}
.comment-form label{display:block;font-size:.85rem;font-weight:600;color:var(--ink-light);margin-bottom:5px}
.comment-form input,.comment-form textarea{width:100%;padding:11px 16px;border:1px solid var(--border);border-radius:var(--radius);font-size:.92rem;margin-bottom:16px}
.comment-form input:focus,.comment-form textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-light)}
.comment-form textarea{min-height:120px;resize:vertical}
.comment-form .submit{background:var(--accent);color:#fff;border:none;padding:12px 28px;border-radius:var(--radius);font-weight:700;font-size:.9rem;cursor:pointer;transition:background .2s}
.comment-form .submit:hover{background:var(--accent-hover)}

/* ─── Pagination ─────────────────────────────────────────── */
.pagination{display:flex;align-items:center;justify-content:center;gap:8px;padding:44px 0}
.pagination a,.pagination span{padding:10px 16px;border-radius:var(--radius);font-weight:600;border:1px solid var(--border);color:var(--ink-muted);font-size:.88rem;transition:all .2s}
.pagination a:hover,.pagination .current{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ─── Footer ─────────────────────────────────────────────── */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding:56px 24px 28px;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:44px;max-width:var(--max-w);margin:0 auto}
@media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media(max-width:480px){.footer-grid{grid-template-columns:1fr}}
.footer-brand{font-family:var(--serif);font-size:1.4rem;color:#fff;margin-bottom:10px;font-weight:700}
.footer-desc{font-size:.88rem;line-height:1.6;margin-bottom:18px}
.footer-social{display:flex;gap:10px}
.footer-social a{width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.1);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.82rem;transition:background .2s}
.footer-social a:hover{background:var(--accent)}
.site-footer h5{font-weight:700;font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:#fff;margin-bottom:14px}
.site-footer .footer-col a{display:block;padding:3px 0;font-size:.86rem;color:rgba(255,255,255,.6);transition:color .2s}
.site-footer .footer-col a:hover{color:#fff}
.footer-bottom{text-align:center;padding-top:28px;margin-top:40px;border-top:1px solid rgba(255,255,255,.1);font-size:.8rem;color:rgba(255,255,255,.4)}

/* ─── Cookie Banner ──────────────────────────────────────── */
.cookie-consent{position:fixed;bottom:0;left:0;right:0;z-index:9999;background:var(--ink);color:rgba(255,255,255,.9);padding:18px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;box-shadow:0 -4px 20px rgba(0,0,0,.2)}
.cookie-consent p{font-size:.86rem;line-height:1.5;flex:1;min-width:260px}
.cookie-consent p a{color:var(--accent);text-decoration:underline}
.cookie-btns{display:flex;gap:8px}
.cookie-btn{padding:9px 18px;border-radius:var(--radius);font-weight:700;font-size:.82rem;cursor:pointer;border:none}
.cookie-accept{background:var(--accent);color:#fff}
.cookie-decline{background:rgba(255,255,255,.15);color:#fff}

/* ─── Progress Bar ───────────────────────────────────────── */
.reading-progress{position:fixed;top:0;left:0;height:3px;z-index:9999;background:var(--accent);width:0;transition:width .1s linear}

/* ─── Back to Top ────────────────────────────────────────── */
.back-to-top{position:fixed;bottom:24px;right:24px;z-index:100;width:44px;height:44px;border-radius:50%;background:var(--accent);color:#fff;border:none;cursor:pointer;font-size:1.2rem;box-shadow:var(--shadow-lg);display:none;align-items:center;justify-content:center;transition:transform .2s}
.back-to-top:hover{transform:translateY(-3px)}

/* ─── Forms general ──────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius);font-weight:700;font-size:.88rem;transition:all .2s;border:none;cursor:pointer}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover)}
.btn-outline{border:1px solid var(--border);color:var(--ink-light);background:#fff}
.btn-outline:hover{border-color:var(--ink)}

/* ─── Pages ──────────────────────────────────────────────── */
.page-header{padding:44px 24px;text-align:center;background:var(--paper-warm);border-bottom:1px solid var(--border-light)}
.page-header h1{margin-bottom:6px}
.page-header p{color:var(--ink-muted);font-size:1rem}
.page-content{max-width:var(--content-w);margin:0 auto;padding:44px 24px 72px}

/* ─── Search ─────────────────────────────────────────────── */
.search-form{display:flex;gap:8px}
.search-form input{flex:1;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius);font-size:.9rem}
.search-form button{padding:10px 18px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius);font-weight:700;cursor:pointer}

/* ─── 404 ────────────────────────────────────────────────── */
.error-404{text-align:center;padding:100px 24px}
.error-404 h1{font-size:7rem;color:var(--border);line-height:1}
.error-404 p{font-size:1.1rem;color:var(--ink-muted);margin:18px 0 28px}

/* ─── Print ──────────────────────────────────────────────── */
@media print{
  .site-header,.site-footer,.ad-slot,.share-buttons,.cookie-consent,.reading-progress,.back-to-top,.sidebar,.comment-respond,.newsletter-box{display:none!important}
  .entry-content{font-size:12pt;line-height:1.6}
  .content-with-sidebar{grid-template-columns:1fr!important}
}

/* ─── WP Specifics ───────────────────────────────────────── */
.alignleft{float:left;margin:0 24px 24px 0}
.alignright{float:right;margin:0 0 24px 24px}
.aligncenter{display:block;margin:0 auto 24px}
.wp-caption{max-width:100%}
.wp-caption-text{font-size:.82rem;color:var(--ink-muted);margin-top:8px;text-align:center}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin:24px 0}
.gallery img{border-radius:var(--radius)}
.wp-block-image{margin:28px 0}
.wp-block-image img{border-radius:var(--radius);box-shadow:var(--shadow-sm)}