/*
Theme Name:   MedicalBilling101 Child
Theme URI:    https://medicalbilling101.com/
Description:  Lightweight GeneratePress child theme for MedicalBilling101.com: sticky header, off-canvas mobile menu, card grid, author box, last-updated date, TOC, related posts, ad hooks, custom footer. Original code, no GP Premium code.
Author:       Manikandan
Template:     generatepress
Version:      1.0.0.4
Requires PHP: 7.4
License:      GPL-2.0-or-later
Text Domain:  mbx
*/

/* ---------- Tokens ---------- */
:root{
  --mbx-navy:#0b3c5d; --mbx-teal:#0f766e; --mbx-teal-dark:#0b5d57;
  --mbx-text:#1f2937; --mbx-muted:#4b5563; --mbx-border:#e2e8f0;
  --mbx-bg:#f4f7fa; --mbx-surface:#fff; --mbx-tint:#ecf6f5;
  --mbx-radius:10px; --mbx-content:740px;
  --mbx-font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
}

/* ---------- Typography ---------- */
body{background:var(--mbx-bg);color:var(--mbx-text);font-family:var(--mbx-font);font-size:18px;line-height:1.7;-webkit-font-smoothing:antialiased}
button,input,select,textarea{font-family:var(--mbx-font)}
h1,h2,h3,h4{color:var(--mbx-navy);font-family:var(--mbx-font);font-weight:700;line-height:1.25;letter-spacing:-.01em}
h1,.entry-title{font-size:clamp(1.9rem,1.4rem + 2vw,2.5rem)}
.entry-content h2{font-size:clamp(1.5rem,1.25rem + 1vw,1.85rem);margin:2.2em 0 .7em;scroll-margin-top:90px}
.entry-content h3{font-size:clamp(1.22rem,1.1rem + .5vw,1.4rem);margin:1.8em 0 .6em;scroll-margin-top:90px}
.entry-content p,.entry-content li{font-size:1em}
.entry-content ul,.entry-content ol{margin-left:1.4em}
a{color:var(--mbx-teal)}
a:hover,a:focus{color:var(--mbx-teal-dark)}
.entry-content a{text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}
:focus-visible{outline:3px solid #f59e0b;outline-offset:2px}
.entry-content blockquote{border-left:4px solid var(--mbx-teal);background:var(--mbx-tint);padding:1em 1.2em;font-style:normal;border-radius:0 var(--mbx-radius) var(--mbx-radius) 0}
.entry-content table{border-collapse:collapse;width:100%;font-size:.92em;display:block;overflow-x:auto}
.entry-content th,.entry-content td{border:1px solid var(--mbx-border);padding:.55em .75em;text-align:left}
.entry-content th{background:var(--mbx-tint);color:var(--mbx-navy)}

/* ---------- Header: sticky ---------- */
.site-header{position:sticky;top:0;z-index:100;background:var(--mbx-surface);border-bottom:1px solid var(--mbx-border);transition:box-shadow .2s}
.admin-bar .site-header{top:32px}
@media (max-width:782px){.admin-bar .site-header{top:46px}}
@media (max-width:600px){.admin-bar .site-header{top:0}}
.mbx-scrolled .site-header{box-shadow:0 2px 14px rgba(11,60,93,.1)}
.inside-header{padding-top:14px;padding-bottom:14px;transition:padding .2s}
.mbx-scrolled .inside-header{padding-top:8px;padding-bottom:8px}
.main-navigation{background:transparent}
.main-navigation .main-nav ul li a{color:var(--mbx-text);font-weight:600}
.main-navigation .main-nav ul li:hover>a,.main-navigation .main-nav ul li.current-menu-item>a{color:var(--mbx-teal)}
.main-navigation ul ul{background:var(--mbx-surface);box-shadow:0 8px 24px rgba(0,0,0,.08)}

/* ---------- Off-canvas mobile menu ---------- */
@media (max-width:768px){
  .main-navigation .main-nav{position:fixed;top:0;right:0;bottom:0;width:min(84vw,320px);background:var(--mbx-surface);z-index:1001;overflow-y:auto;transform:translateX(100%);transition:transform .25s ease;box-shadow:-6px 0 24px rgba(0,0,0,.15);padding:64px 0 24px;visibility:hidden}
  .main-navigation.toggled .main-nav{transform:none;visibility:visible}
  .main-navigation .main-nav>ul{display:block!important}
  .main-navigation .main-nav ul li a{padding:12px 24px;line-height:1.4;border-bottom:1px solid var(--mbx-border)}
  .has-inline-mobile-toggle #site-navigation.toggled{margin-top:0}
  .mbx-nav-close{position:absolute;top:12px;right:12px;width:44px;height:44px;border:0;border-radius:50%;background:var(--mbx-tint);color:var(--mbx-navy);font-size:26px;line-height:1;cursor:pointer;padding:0}
  .mbx-overlay{position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:1000;opacity:0;visibility:hidden;transition:opacity .25s}
  .mbx-nav-open .mbx-overlay{opacity:1;visibility:visible}
  .mbx-nav-open{overflow:hidden}
  .mbx-nav-open .site-header{z-index:1002}
  .menu-toggle,.menu-toggle:hover,.menu-toggle:focus{color:var(--mbx-navy);background:transparent}
}
@media (min-width:769px){.mbx-nav-close,.mbx-overlay{display:none}}

/* ---------- Single post layout ---------- */
.single-post .site-content .content-area,.page .site-content .content-area{max-width:calc(var(--mbx-content) + 80px);margin-left:auto;margin-right:auto;float:none}
.separate-containers .inside-article{border-radius:var(--mbx-radius);border:1px solid var(--mbx-border)}
.mbx-updated{display:flex;flex-wrap:wrap;gap:.4em 1em;margin-top:.6em;font-size:.88rem;color:var(--mbx-muted)}
.mbx-updated strong{color:var(--mbx-text);font-weight:600}
.mbx-updated a{color:var(--mbx-teal)}

/* ---------- TOC ---------- */
.mbx-toc{background:var(--mbx-tint);border:1px solid #cfe7e4;border-radius:var(--mbx-radius);padding:.2em 1.2em;margin:1.5em 0 2em}
.mbx-toc summary{cursor:pointer;font-weight:700;color:var(--mbx-navy);padding:.7em 0;list-style:none;display:flex;justify-content:space-between;align-items:center}
.mbx-toc summary::-webkit-details-marker{display:none}
.mbx-toc summary::after{content:"+";font-size:1.4em;line-height:1;color:var(--mbx-teal)}
.mbx-toc[open] summary::after{content:"\2212"}
.mbx-toc ol{margin:0 0 1em 1.3em;padding:0}
.mbx-toc li{font-size:.95rem;margin:.35em 0;line-height:1.45}
.entry-content .mbx-toc a{text-decoration:none;color:var(--mbx-text)}
.entry-content .mbx-toc a:hover{color:var(--mbx-teal);text-decoration:underline}

/* ---------- Ad slots ---------- */
.mbx-ad{margin:2em 0;text-align:center;min-height:1px}

/* ---------- Author box ---------- */
.mbx-author{display:flex;gap:1.1em;align-items:flex-start;margin:2.5em 0 0;padding:1.4em;border:1px solid var(--mbx-border);border-radius:var(--mbx-radius);background:var(--mbx-bg)}
.mbx-author img{border-radius:50%;background:var(--mbx-tint);flex:0 0 auto;width:80px;height:80px}
.mbx-author__label{margin:0;font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--mbx-muted);font-weight:600}
.mbx-author__name{margin:.1em 0 .1em;font-size:1.15rem;font-weight:700;line-height:1.3}
.mbx-author__name a{color:var(--mbx-navy);text-decoration:none}
.mbx-author__cred{margin:0 0 .4em;font-size:.88rem;color:var(--mbx-teal-dark);font-weight:600}
.mbx-author__bio{margin:0 0 .5em;font-size:.95rem;color:var(--mbx-text)}
.mbx-author__more{font-size:.9rem;font-weight:600}
@media (max-width:480px){.mbx-author{flex-direction:column}}

/* ---------- Related posts ---------- */
.mbx-related{margin-top:2.5em}
.mbx-related h2{font-size:1.35rem;margin:0 0 .9em}
.mbx-related__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;list-style:none;margin:0;padding:0}
.mbx-related__item a{display:block;text-decoration:none;color:var(--mbx-text);font-weight:600;font-size:.95rem;line-height:1.4}
.mbx-related__item a:hover{color:var(--mbx-teal)}
.mbx-related__img{display:block;aspect-ratio:16/9;border-radius:8px;overflow:hidden;background:var(--mbx-tint);margin-bottom:.5em}
.mbx-related__img img{width:100%;height:100%;object-fit:cover;display:block}
@media (max-width:600px){.mbx-related__grid{grid-template-columns:1fr}}

/* ---------- Card grid (blog/archive) ---------- */
.mbx-grid .site-content .content-area{width:100%;float:none}
.mbx-grid .site-main{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.mbx-grid .site-main>*:not(article){grid-column:1/-1}
.mbx-grid.separate-containers .site-main>article{margin:0}
.mbx-grid .inside-article{display:flex;flex-direction:column;height:100%;padding:0!important;overflow:hidden;transition:box-shadow .2s,transform .2s}
.mbx-grid .inside-article:hover{box-shadow:0 10px 28px rgba(11,60,93,.1);transform:translateY(-2px)}
.mbx-grid .post-image{order:-1;margin:0!important;aspect-ratio:16/9;overflow:hidden;background:var(--mbx-tint)}
.mbx-grid .post-image img{width:100%;height:100%;object-fit:cover;display:block}
.mbx-grid .entry-header,.mbx-grid .entry-summary{padding:0 22px}
.mbx-grid .entry-header{padding-top:18px}
.mbx-grid .entry-title{font-size:1.18rem;line-height:1.35;margin:0}
.mbx-grid .entry-title a{color:var(--mbx-navy)}
.mbx-grid .entry-title a:hover{color:var(--mbx-teal)}
.mbx-grid .entry-meta{font-size:.82rem;color:var(--mbx-muted);margin-top:.5em}
.mbx-grid .entry-summary{font-size:.95rem;color:var(--mbx-muted);margin:.7em 0 0;padding-bottom:20px;flex:1}
.mbx-grid .entry-summary p{margin:0}
.mbx-grid .page-header{margin-bottom:0}
@media (max-width:1024px){.mbx-grid .site-main{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.mbx-grid .site-main{grid-template-columns:1fr;gap:18px}}

/* ---------- Footer ---------- */
.site-info{background:var(--mbx-navy);color:#dbe7f0;font-size:.9rem}
.site-info a{color:#fff}
.mbx-footer{display:flex;flex-wrap:wrap;gap:.6em 1.5em;justify-content:space-between;align-items:center}
.mbx-footer ul{display:flex;flex-wrap:wrap;gap:.4em 1.2em;list-style:none;margin:0;padding:0}
.mbx-footer a{text-decoration:none}
.mbx-footer a:hover{text-decoration:underline;color:#fff}
@media (max-width:640px){.mbx-footer{justify-content:center;text-align:center}.mbx-footer ul{justify-content:center}}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* Header: keep logo + all menu items on one line */
@media (min-width:769px){
  .site-header .inside-header{max-width:1280px;flex-wrap:nowrap}
  .site-header .main-navigation{flex:1 1 auto}
  .site-header .main-navigation .inside-navigation{justify-content:flex-end}
  .site-header .main-navigation .main-nav>ul{flex-wrap:nowrap}
  .main-navigation .main-nav>ul>li>a{padding-left:12px;padding-right:12px;font-size:15px;white-space:nowrap;line-height:56px}
  .site-logo img,.site-header .header-image{max-height:44px;width:auto}
}
@media (min-width:769px) and (max-width:1100px){
  .main-navigation .main-nav>ul>li>a{padding-left:8px;padding-right:8px;font-size:14px}
}

/* Simple Author Box: photo left, text in its own column */
.saboxplugin-wrap{border:1px solid var(--mbx-border)!important;border-radius:12px;overflow:hidden}
.saboxplugin-wrap .saboxplugin-tab{display:grid!important;grid-template-columns:100px 1fr;column-gap:22px;align-items:start;padding:22px!important}
.saboxplugin-wrap .saboxplugin-gravatar{float:none!important;grid-row:1 / span 3;margin:0!important;width:100px!important}
.saboxplugin-wrap .saboxplugin-gravatar img{width:100px!important;height:100px!important;border-radius:50%;object-fit:cover}
.saboxplugin-wrap .saboxplugin-authorname,.saboxplugin-wrap .saboxplugin-desc{grid-column:2;margin:0!important;padding:0!important}
.saboxplugin-wrap .saboxplugin-authorname{margin-bottom:6px!important}
.saboxplugin-wrap .saboxplugin-desc p{margin:0 0 .5em}
.saboxplugin-wrap .saboxplugin-web{grid-column:2;float:none!important;text-align:left!important;margin-top:6px;padding:0!important}
.saboxplugin-wrap .clearfix{display:none}
/* Author profile links (LinkedIn, Medium, X) – used in SAB and the fallback .mbx-author box */
.mbx-author__social{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:8px 0 0;padding:0}
.saboxplugin-wrap .mbx-author__social{grid-column:2}
.mbx-author__social li{margin:0}
.mbx-author__social a{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border:1px solid var(--mbx-border);border-radius:999px;font-size:.85rem;font-weight:600;line-height:1.4;color:var(--mbx-navy);text-decoration:none!important;background:var(--mbx-surface)}
.mbx-author__social a:hover,.mbx-author__social a:focus-visible{border-color:var(--mbx-teal);color:var(--mbx-teal-dark);background:var(--mbx-tint)}
.mbx-author__social svg{width:14px;height:14px;flex:0 0 auto}
@media (max-width:520px){
  .saboxplugin-wrap .saboxplugin-tab{grid-template-columns:1fr;text-align:center}
  .saboxplugin-wrap .saboxplugin-gravatar{grid-row:auto;margin:0 auto 12px!important}
  .saboxplugin-wrap .saboxplugin-authorname,.saboxplugin-wrap .saboxplugin-desc,.saboxplugin-wrap .saboxplugin-web{grid-column:1;text-align:center!important}
  .saboxplugin-wrap .mbx-author__social{grid-column:1;justify-content:center}
}

/* Homepage title above the grid */
.mbx-home-title{grid-column:1 / -1;text-align:center;margin:8px 0 6px}
.mbx-home-title h1{font-size:clamp(26px,3.2vw,36px);line-height:1.25;margin:0;color:var(--mbx-text)}

/* Header menu on small desktops/tablets (769-1000px): smaller links, wrap to a 2nd centered row instead of overflowing */
@media (min-width:769px) and (max-width:1000px){
  .site-header .main-navigation .main-nav>ul{flex-wrap:wrap;justify-content:center}
  .main-navigation .main-nav>ul>li>a{padding-left:7px;padding-right:7px;font-size:13px;line-height:44px}
}

/* Mobile sideways-scroll guard (1.0.0.14, 11 Oct 2026). The GP .content-area is a flex item; min-width:auto let it grow to the
   min-content width of wide tables, <pre> blocks, long URLs and comment text, so the whole page scrolled sideways on phones. */
.site-content .content-area,.site-main,.inside-article,.entry-content{min-width:0}
.single-post .site-content .content-area,.page .site-content .content-area{max-width:min(100%,calc(var(--mbx-content) + 80px))}
.entry-content pre,.entry-content .wp-block-code{max-width:100%;overflow-x:auto}
.comments-area{max-width:100%}
@media (max-width:768px){
  .entry-content,.comments-area{overflow-wrap:break-word}
  .entry-content pre,.entry-content pre code{white-space:pre-wrap;overflow-wrap:anywhere}
  .entry-content a,.comment-content a,.comment-content{overflow-wrap:anywhere}
}

/* 1.0.0.15 (audit S5): reserve the tool app height before the JS builds it, so the
   "How to use" section below doesn't jump (CLS). Always shorter than the built tool
   (appeal 2,505px desktop / 4,782px mobile; TFL 816px / 1,336px). */
.mbx-alg{min-height:900px}
.mbx-tfl{min-height:800px}

/* 2026-10-11 audit N10: moved from the "mb101-overrides" header widget (block-9, Theme Optimizer 2026-10-03),
   with the values that won on the live site. The widget was deleted. (SAB rule dropped: plugin is off.) */
.header-widget{display:none!important}
h1,h2,h3,h4,h5,h6,.entry-title{font-weight:600}
.single .entry-content{max-width:720px}
@media (max-width:768px){h1{font-size:30px;line-height:1.25}h2,.blog h2.entry-title,.archive h2.entry-title{font-size:24px;line-height:1.3}h3{font-size:20px;line-height:1.35}}

/* 1.0.0.20 (audit N18): stable "no ads here" marker class for AdSense Auto ads > Excluded areas
   (tool apps, mini calculator, appeal CTA, bell, quiz) + a 24px buffer around in-content widgets. */
.mbx-tool-cta.mbx-noads,.mbx-tfl-mini.mbx-noads{margin-top:24px;margin-bottom:24px}