/*
Theme Name: Calculator Den
Theme URI: https://calculatorden.com
Author: Calculator Den
Author URI: https://calculatorden.com
Description: A fast, lightweight, secure and SEO-friendly WordPress theme built for calculator and utility websites. Mobile-first, AdSense ready, and fully customizable via the WordPress Customizer.
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
Tested up to: 6.6
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: calculatorden
Tags: blog, custom-menu, custom-colors, custom-logo, featured-images, threaded-comments, translation-ready, accessibility-ready

Styles rely on CSS custom properties so the whole site can be restyled from
Appearance > Customize without editing code.
*/

/* 1. CSS CUSTOM PROPERTIES (live-overridden by the Customizer) */
:root{
  --cd-primary:#2563eb;
  --cd-primary-dark:#1d4ed8;
  --cd-secondary:#f59e0b;
  --cd-header-bg:#ffffff;
  --cd-header-text:#0f172a;
  --cd-footer-bg:#eef2f9;
  --cd-footer-text:#334155;
  --cd-body-bg:#ffffff;
  --cd-body-text:#0f172a;
  --cd-muted-text:#475569;
  --cd-link:#2563eb;
  --cd-link-hover:#1d4ed8;
  --cd-btn-bg:#2563eb;
  --cd-btn-text:#ffffff;
  --cd-border:#e2e8f0;
  --cd-card-bg:#ffffff;
  --cd-radius:14px;
  --cd-container:1200px;
  --cd-header-height:76px;
  --cd-footer-height:auto;
  --cd-font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --cd-font-size:16px;
}
[data-cd-theme="dark"]{
  --cd-header-bg:#0f172a; --cd-header-text:#f1f5f9;
  --cd-footer-bg:#0b1220; --cd-footer-text:#cbd5e1;
  --cd-body-bg:#0b1220; --cd-body-text:#e2e8f0;
  --cd-muted-text:#94a3b8; --cd-border:#1e293b; --cd-card-bg:#111c33;
}

/* 2. RESET / BASE */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;font-family:var(--cd-font);font-size:var(--cd-font-size);line-height:1.6;color:var(--cd-body-text);background:var(--cd-body-bg);transition:background-color .2s ease,color .2s ease;}
img{max-width:100%;height:auto;display:block;}
a{color:var(--cd-link);text-decoration:none;}
a:hover{color:var(--cd-link-hover);text-decoration:underline;}
h1,h2,h3,h4,h5,h6{line-height:1.2;margin:0 0 .6em;font-weight:800;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--cd-primary);color:#fff;padding:12px 18px;z-index:100000;border-radius:0 0 8px 0;}
.skip-link:focus{left:0;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--cd-secondary);outline-offset:2px;}
.screen-reader-text{border:0;clip:rect(1px,1px,1px,1px);clip-path:inset(50%);height:1px;width:1px;overflow:hidden;position:absolute!important;word-wrap:normal!important;margin:-1px;padding:0;}

/* 3. LAYOUT */
.cd-container{width:100%;max-width:var(--cd-container);margin:0 auto;padding:0 20px;}

/* 4. HEADER */
.site-header{background:var(--cd-header-bg);color:var(--cd-header-text);border-bottom:1px solid var(--cd-border);position:sticky;top:0;z-index:999;}
.cd-header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--cd-header-height);position:relative;}
.site-branding{display:flex;align-items:center;gap:10px;}
.site-branding img.custom-logo{max-height:calc(var(--cd-header-height) - 24px);width:auto;}
.site-title{font-size:1.4rem;font-weight:800;margin:0;color:var(--cd-header-text);}
.site-title a{color:inherit;text-decoration:none;}
.site-title .cd-brand-accent{color:var(--cd-primary);}
.site-description{font-size:.75rem;color:var(--cd-muted-text);margin:0;}

.cd-primary-nav{display:flex;align-items:center;gap:6px;flex:1;justify-content:center;}
.cd-primary-nav ul{display:flex;align-items:center;gap:4px;}
.cd-primary-nav li{position:relative;}
.cd-primary-nav a{display:block;padding:10px 14px;border-radius:8px;color:var(--cd-header-text);font-weight:600;font-size:.95rem;}
.cd-primary-nav a:hover,.cd-primary-nav .current-menu-item>a{color:var(--cd-primary);text-decoration:none;}
.cd-primary-nav .menu-item-has-children>a::after{content:"\25BE";font-size:.7em;margin-left:5px;}
.cd-primary-nav .sub-menu{display:none;position:absolute;top:100%;left:0;min-width:220px;background:var(--cd-card-bg);border:1px solid var(--cd-border);border-radius:10px;padding:6px;box-shadow:0 12px 28px rgba(15,23,42,.12);z-index:20;}
.cd-primary-nav li:hover>.sub-menu,.cd-primary-nav li:focus-within>.sub-menu{display:block;}
.cd-primary-nav .sub-menu a{border-radius:6px;}

.cd-header-actions{display:flex;align-items:center;gap:10px;}
.cd-search-toggle,.cd-menu-toggle,.cd-dark-toggle{background:none;border:1px solid var(--cd-border);border-radius:10px;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--cd-header-text);}
.cd-menu-toggle{display:none;flex-direction:column;gap:4px;}
.cd-menu-toggle span{display:block;width:18px;height:2px;background:currentColor;}
.cd-header-search{display:none;position:absolute;left:0;right:0;top:100%;background:var(--cd-header-bg);border-bottom:1px solid var(--cd-border);padding:14px 0;}
.cd-header-search.is-open{display:block;}
.cd-header-search form{display:flex;max-width:var(--cd-container);margin:0 auto;padding:0 20px;gap:8px;}
.cd-header-search input[type="search"]{flex:1;padding:10px 14px;border:1px solid var(--cd-border);border-radius:10px;background:var(--cd-body-bg);color:var(--cd-body-text);}
.cd-header-search button{padding:10px 18px;border:0;border-radius:10px;background:var(--cd-btn-bg);color:var(--cd-btn-text);cursor:pointer;}

@media (max-width:900px){
  .cd-primary-nav{position:fixed;top:0;right:-320px;height:100vh;width:300px;max-width:85vw;background:var(--cd-header-bg);flex-direction:column;align-items:flex-start;padding:80px 20px 20px;overflow-y:auto;box-shadow:-10px 0 30px rgba(0,0,0,.15);transition:right .25s ease;z-index:1000;justify-content:flex-start;}
  .cd-primary-nav.is-open{right:0;}
  .cd-primary-nav ul{flex-direction:column;align-items:flex-start;width:100%;}
  .cd-primary-nav .sub-menu{position:static;box-shadow:none;display:none;width:100%;border:0;padding-left:10px;}
  .cd-primary-nav li.is-open>.sub-menu{display:block;}
  .cd-menu-toggle{display:flex;}
  .cd-menu-backdrop{display:none;position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:998;}
  .cd-menu-backdrop.is-open{display:block;}
}

/* 5. HERO */
.cd-hero{padding:60px 0;background:linear-gradient(180deg,#eef3ff 0%,#ffffff 100%);overflow:hidden;}
[data-cd-theme="dark"] .cd-hero{background:linear-gradient(180deg,#0d1730 0%,var(--cd-body-bg) 100%);}
.cd-hero-inner{display:flex;align-items:center;gap:40px;}
.cd-hero-copy{flex:1;min-width:280px;}
.cd-hero-copy h1{font-size:clamp(2rem,4.2vw,3.2rem);margin-bottom:.2em;}
.cd-hero-copy h1 .accent{color:var(--cd-primary);display:block;}
.cd-hero-copy p{color:var(--cd-muted-text);font-size:1.05rem;max-width:520px;}
.cd-hero-actions{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap;}
.cd-btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 26px;border-radius:10px;background:var(--cd-btn-bg);color:var(--cd-btn-text);font-weight:700;border:0;cursor:pointer;}
.cd-btn:hover{background:var(--cd-primary-dark);color:var(--cd-btn-text);text-decoration:none;}
.cd-btn.cd-btn-outline{background:transparent;color:var(--cd-primary);border:2px solid var(--cd-primary);}
.cd-hero-visual{flex:1;min-width:260px;display:flex;justify-content:center;position:relative;}
.cd-hero-visual svg{max-width:400px;width:100%;height:auto;}

/* 6. SECTIONS / CARDS */
.cd-section{padding:52px 0;}
.cd-section-title{text-align:center;margin-bottom:32px;}
.cd-section-title h2{font-size:1.9rem;}
.cd-section-title p{color:var(--cd-muted-text);}
.cd-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px;}
.cd-card{background:var(--cd-card-bg);border:1px solid var(--cd-border);border-radius:var(--cd-radius);padding:22px;transition:transform .15s ease,box-shadow .15s ease;}
.cd-card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(15,23,42,.08);}
.cd-card .cd-icon{width:46px;height:46px;border-radius:12px;background:var(--cd-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:14px;}
.cd-card h3{font-size:1.1rem;margin-bottom:.3em;}
.cd-card p{color:var(--cd-muted-text);font-size:.92rem;margin-bottom:0;}

/* 7. AD SLOTS - CLS safe (reserved min-height so no layout shift) */
.cd-ad-slot{width:100%;margin:28px auto;display:flex;align-items:center;justify-content:center;background:var(--cd-footer-bg);border:1px dashed var(--cd-border);border-radius:10px;color:var(--cd-muted-text);font-size:.8rem;overflow:hidden;contain:layout;}
.cd-ad-slot[data-size="leaderboard"]{max-width:728px;min-height:90px;}
.cd-ad-slot[data-size="rectangle"]{max-width:336px;min-height:280px;}
.cd-ad-slot[data-size="responsive"]{min-height:100px;}

/* 8. CONTENT / PAGES / POSTS */
.cd-page-wrap{padding:44px 0;}
.entry-content{max-width:820px;}
.entry-content h2{margin-top:1.4em;}
.entry-content img{border-radius:10px;}
.entry-content table{width:100%;border-collapse:collapse;margin:1.2em 0;}
.entry-content table th,.entry-content table td{border:1px solid var(--cd-border);padding:10px;text-align:left;}
.cd-breadcrumbs{font-size:.85rem;color:var(--cd-muted-text);margin-bottom:18px;}
.cd-breadcrumbs a{color:var(--cd-muted-text);}
.cd-post-list{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));}
.cd-post-card{border:1px solid var(--cd-border);border-radius:var(--cd-radius);overflow:hidden;background:var(--cd-card-bg);}
.cd-post-card img{aspect-ratio:16/9;object-fit:cover;}
.cd-post-card-body{padding:16px;}
.cd-post-card h2{font-size:1.05rem;}
.cd-post-meta{font-size:.8rem;color:var(--cd-muted-text);}
.cd-pagination{display:flex;gap:8px;justify-content:center;margin-top:30px;flex-wrap:wrap;}
.cd-pagination a,.cd-pagination span{padding:8px 14px;border:1px solid var(--cd-border);border-radius:8px;color:var(--cd-body-text);}
.cd-pagination .current{background:var(--cd-primary);color:#fff;border-color:var(--cd-primary);}

/* 9. COMMENTS / FORMS */
.comment-form input,.comment-form textarea{width:100%;padding:11px 14px;border:1px solid var(--cd-border);border-radius:10px;margin-bottom:12px;background:var(--cd-body-bg);color:var(--cd-body-text);}
.comment-form label{display:block;font-weight:600;margin-bottom:6px;font-size:.9rem;}

/* 10. FOOTER */
.site-footer{background:var(--cd-footer-bg);color:var(--cd-footer-text);border-top:1px solid var(--cd-border);}
.cd-footer-top{padding:48px 0 30px;min-height:var(--cd-footer-height);}
.cd-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:24px;}
.cd-footer-brand .site-title{color:var(--cd-footer-text);}
.cd-footer-brand p{color:var(--cd-footer-text);opacity:.85;max-width:280px;}
.cd-footer-col h3{font-size:.95rem;text-transform:uppercase;letter-spacing:.04em;margin-bottom:14px;}
.cd-footer-col ul li{margin-bottom:9px;}
.cd-footer-col a{color:var(--cd-footer-text);opacity:.9;}
.cd-footer-bottom{border-top:1px solid var(--cd-border);padding:18px 0;font-size:.85rem;text-align:center;opacity:.8;}
@media (max-width:800px){.cd-footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:520px){.cd-footer-grid{grid-template-columns:1fr;}}

/* 11. RESPONSIVE / UTILITIES */
@media (max-width:900px){
  .cd-hero-inner{flex-direction:column;text-align:center;}
  .cd-hero-actions{justify-content:center;}
  .cd-hero-copy p{margin-left:auto;margin-right:auto;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;}
}