/*
Theme Name: EduTechGuide
Theme URI: https://edutechguides.com/
Author: EduTechGuide
Description: A fast, lightweight, student-friendly theme for educational technology guides. Notebook-style hero, topic tiles, dark mode, reading progress, auto table of contents, share buttons, ad slots and a full Customizer panel.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 7.1
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: edutechguide
Tags: blog, education, two-columns, right-sidebar, custom-logo, custom-menu, featured-images, threaded-comments, translation-ready, accessibility-ready, light, dark
*/

:root{
	--ink:#14173D; --bg:#F4F6FB; --card:#fff; --text:#1E2240; --muted:#5C6283; --line:#DFE3EF;
	--accent:#3D4DE0; --accent-ink:#fff; --hl:#FFD23F; --teal:#0E9F9A; --coral:#EF5F4B;
	--radius:14px; --wrap:1180px;
	--shadow:0 1px 2px rgba(20,23,61,.06),0 10px 28px -14px rgba(20,23,61,.22);
	--head:"Bricolage Grotesque","Atkinson Hyperlegible",system-ui,sans-serif;
	--body:"Atkinson Hyperlegible",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
[data-theme=dark]{
	--bg:#0E1124; --card:#171B38; --text:#E7E9F8; --muted:#9FA6CB; --line:#2A3060;
	--accent:#8C97FF; --accent-ink:#0E1124;
	--shadow:0 1px 2px rgba(0,0,0,.4),0 12px 30px -16px rgba(0,0,0,.75);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--body);font-size:1.0625rem;line-height:1.65;-webkit-font-smoothing:antialiased}
img,svg,video{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
h1,h2,h3,h4{font-family:var(--head);line-height:1.15;letter-spacing:-.02em;margin:0 0 .5em;color:var(--text)}
p{margin:0 0 1.1em}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:4px}
.screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);white-space:nowrap}
.skip-link{position:absolute;left:12px;top:-60px;background:var(--ink);color:#fff;padding:10px 16px;border-radius:8px;z-index:200}
.skip-link:focus{top:12px}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:20px}
.narrow{max-width:820px}
.icon{flex:none}

/* Buttons and chips */
.btn{display:inline-flex;align-items:center;gap:8px;font:700 .95rem/1 var(--body);padding:13px 20px;border-radius:999px;border:2px solid transparent;cursor:pointer;text-decoration:none;transition:background .15s,color .15s,border-color .15s}
.btn--primary{background:var(--ink);color:#fff}
[data-theme=dark] .btn--primary{background:var(--accent);color:var(--accent-ink)}
.btn--primary:hover{background:var(--accent);color:#fff}
[data-theme=dark] .btn--primary:hover{background:#fff;color:var(--ink)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--text);padding:9px 14px;font-size:.88rem}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}
.chip{display:inline-block;font:700 .82rem/1 var(--body);padding:8px 13px;border-radius:999px;border:1.5px solid var(--line);color:var(--text);text-decoration:none;background:var(--card);transition:background .15s,border-color .15s,color .15s}
.chip:hover{background:var(--hl);border-color:var(--hl);color:var(--ink)}
.chip--hl{background:var(--hl);border-color:var(--hl);color:var(--ink)}
.chip--hl:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:22px 0 0;padding:0}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-in{display:flex;align-items:center;gap:24px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand .custom-logo{width:auto;max-height:42px}
.brand-name{font:800 1.3rem/1 var(--head);letter-spacing:-.03em;color:var(--text);text-decoration:none;white-space:nowrap}
.has-custom-logo .brand-name{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.main-nav{margin-left:auto}
.menu,.f-list,.side-list{list-style:none;margin:0;padding:0}
.main-nav .menu{display:flex;gap:6px}
.main-nav a{display:block;padding:9px 14px;border-radius:10px;color:var(--text);font-weight:700;text-decoration:none;font-size:.97rem}
.main-nav a:hover{background:var(--card)}
.main-nav .current-menu-item>a,.main-nav .current_page_item>a{box-shadow:inset 0 -9px 0 color-mix(in srgb,var(--hl) 85%,transparent)}
.main-nav .sub-menu{display:none;position:absolute;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:8px;box-shadow:var(--shadow);list-style:none;margin:0;min-width:200px}
.main-nav li{position:relative}
.main-nav li:hover>.sub-menu,.main-nav li:focus-within>.sub-menu{display:block}
.header-actions{display:flex;gap:4px}
.icon-btn{display:grid;place-items:center;width:42px;height:42px;border-radius:50%;border:0;background:transparent;color:var(--text);cursor:pointer}
.icon-btn:hover{background:var(--card)}
.ico-sun,.ico-close,.menu-btn{display:none}
[data-theme=dark] .ico-sun{display:block}
[data-theme=dark] .ico-moon{display:none}
.search-drawer{border-top:1px solid var(--line);padding:14px 0;background:var(--bg)}
.search-drawer[hidden]{display:none}

/* Search form */
.search-form{display:flex;gap:8px;background:var(--card);border:2px solid var(--ink);border-radius:999px;padding:5px 5px 5px 20px;max-width:560px;box-shadow:4px 4px 0 var(--ink)}
[data-theme=dark] .search-form{border-color:var(--line);box-shadow:none}
.search-form input{flex:1;min-width:0;border:0;background:transparent;font:inherit;color:var(--text);outline:0}
.search-form:focus-within{border-color:var(--accent)}
.search-form .btn{padding:12px 22px}

/* Hero: graph paper and a notebook page */
.hero{position:relative;padding:60px 0 54px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:34px 34px;-webkit-mask-image:linear-gradient(#000 20%,transparent 95%);mask-image:linear-gradient(#000 20%,transparent 95%);opacity:.7;pointer-events:none}
.hero-in{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(2.5rem,5.4vw,4.4rem);font-weight:800;line-height:1.02;letter-spacing:-.035em;margin-bottom:.4em}
.lede{font-size:1.18rem;color:var(--muted);max-width:52ch;margin-bottom:1.6em}
.notebook{position:relative;display:block;background:var(--card);border:1px solid var(--line);border-radius:10px 20px 20px 10px;box-shadow:var(--shadow);color:inherit;text-decoration:none;transform:rotate(1.4deg);transition:transform .25s ease;overflow:hidden;animation:settle .9s .1s cubic-bezier(.2,.8,.2,1) both}
.notebook:hover{transform:rotate(0)}
.notebook::before{content:"";position:absolute;left:0;top:0;bottom:0;width:36px;background:radial-gradient(circle at 18px 20px,var(--bg) 6.5px,var(--line) 7px,transparent 8px) 0 0/36px 46px repeat-y;border-right:1px dashed var(--line)}
.notebook-in{margin-left:36px;padding:16px 16px 20px}
.notebook-media{aspect-ratio:3/2;border-radius:10px;overflow:hidden;background:var(--line)}
.notebook-media img{width:100%;height:100%;object-fit:cover}
.notebook-text{padding:18px 6px 0;background:repeating-linear-gradient(transparent 0 29px,color-mix(in srgb,var(--line) 70%,transparent) 29px 30px)}
.notebook-text h2{font-size:1.5rem;margin:12px 0 8px}
.notebook-text p{color:var(--muted);margin-bottom:10px}
@keyframes settle{from{opacity:0;transform:translateY(18px) rotate(5deg)}to{opacity:1;transform:rotate(1.4deg)}}

/* Sections, tiles, cards */
.section{padding:34px 0}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:22px}
.sec-head h2{font-size:clamp(1.6rem,3vw,2.1rem);margin:0}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}
.tile{display:flex;flex-direction:column;gap:6px;padding:22px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);text-decoration:none;color:var(--text);transition:transform .2s,border-color .2s}
.tile:hover{transform:translateY(-3px);border-color:var(--accent)}
.tile-ico{display:grid;place-items:center;width:52px;height:52px;border-radius:14px;margin-bottom:10px;color:var(--ink)}
.tile--0 .tile-ico{background:var(--hl)}
.tile--1 .tile-ico{background:#9DE3DF}
.tile--2 .tile-ico{background:#FFB8AD}
.tile--3 .tile-ico{background:#C5CBFF}
.tile-name{font:700 1.15rem/1.25 var(--head)}
.tile-count{color:var(--muted);font-size:.92rem}

.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s}
.card:hover{transform:translateY(-3px)}
.card-media{display:block;aspect-ratio:16/10;background:var(--line);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-ph{display:grid;place-items:center;width:100%;height:100%;min-height:160px;background:linear-gradient(135deg,var(--hl),#9DE3DF);color:var(--ink)}
.card-body{display:flex;flex-direction:column;align-items:flex-start;gap:10px;padding:20px 22px 22px;flex:1}
.card-title{font-size:1.28rem;margin:0}
.card-title a{color:var(--text);text-decoration:none}
.card-title a:hover{color:var(--accent)}
.card-excerpt{color:var(--muted);font-size:.98rem;margin:0}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;color:var(--muted);font-size:.88rem;margin:auto 0 0}
.card-body .meta{margin-top:auto;padding-top:6px}
.meta-time{display:inline-flex;align-items:center;gap:5px}

.pagination ul{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:38px 0 0;justify-content:center}
.pagination a,.pagination span{display:block;padding:10px 16px;border-radius:999px;border:1.5px solid var(--line);background:var(--card);color:var(--text);text-decoration:none;font-weight:700}
.pagination .current{background:var(--ink);border-color:var(--ink);color:#fff}
[data-theme=dark] .pagination .current{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.pagination a:hover{border-color:var(--accent)}

.join{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:center;background:var(--ink);color:#fff;border-radius:22px;padding:44px}
.join h2{color:#fff;font-size:clamp(1.6rem,3vw,2.2rem)}
.join p{color:#C9CEEA;margin:0;max-width:46ch}
.join .btn--primary{background:var(--hl);color:var(--ink)}
.join .btn--primary:hover{background:#fff}
.join input[type=email],.join input[type=text]{width:100%;padding:13px 18px;border-radius:999px;border:0;font:inherit;margin-bottom:10px}

/* Layout with sidebar */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start;padding-block:26px 40px}
.sidebar{position:sticky;top:90px;display:grid;gap:22px}
.widget{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.widget-title{font-size:1.1rem;margin-bottom:12px}
.side-list li{padding:8px 0;border-top:1px solid var(--line)}
.side-list li:first-child{border-top:0}
.side-list a,.widget a{color:var(--text);text-decoration:none;font-weight:700}
.side-list a:hover,.widget a:hover{color:var(--accent)}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:.9rem;padding-top:22px}
.crumbs a{color:var(--muted)}
.archive-head{padding:20px 0 16px}
.archive-head h1,.page-title{font-size:clamp(2rem,4.5vw,3.1rem);margin-bottom:.35em}
.archive-head .search-form{margin-top:12px}

/* Article */
.article{min-width:0}
.article-head h1{font-size:clamp(2rem,4.4vw,3.2rem);margin:16px 0 18px;letter-spacing:-.03em}
.byline{display:flex;align-items:center;gap:12px;margin-bottom:24px}
.byline .avatar{border-radius:50%}
.by{display:block;font-weight:700}
.by a{color:var(--text);text-decoration:none}
.article-media{margin:0 0 30px}
.article-media img{width:100%;border-radius:var(--radius)}
.entry-content{font-size:1.14rem;line-height:1.8;max-width:70ch}
.entry-content>*{margin-block:0 1.3em}
.entry-content h2{font-size:1.9rem;margin-top:1.8em;scroll-margin-top:90px}
.entry-content h3{font-size:1.4rem;margin-top:1.5em;scroll-margin-top:90px}
.entry-content img{border-radius:12px}
.entry-content ul,.entry-content ol{padding-left:1.4em}
.entry-content li{margin-bottom:.45em}
.entry-content blockquote{margin-inline:0;padding:6px 0 6px 22px;border-left:6px solid var(--hl);font-size:1.2rem}
.entry-content table{display:block;overflow-x:auto;border-collapse:collapse;width:100%}
.entry-content th,.entry-content td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.entry-content th{background:var(--card)}
.entry-content pre,.entry-content code{background:var(--card);border:1px solid var(--line);border-radius:8px;font-size:.92em}
.entry-content code{padding:2px 6px}
.entry-content pre{padding:16px;overflow-x:auto}
.entry-content pre code{border:0;padding:0}
.toc{background:var(--card);border:1px solid var(--line);border-left:6px solid var(--hl);border-radius:12px;padding:16px 22px;margin:0 0 30px;max-width:70ch}
.toc summary{font:700 1.05rem var(--head);cursor:pointer}
.toc ol{margin:12px 0 0;padding-left:1.2em}
.toc li{margin:6px 0}
.toc .toc-sub{margin-left:1em;list-style:circle}
.toc a{color:var(--text);text-decoration:none}
.toc a:hover,.toc a.on{color:var(--accent);text-decoration:underline}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:28px 0 0}
.tags a{font-size:.88rem;padding:6px 12px;border-radius:999px;background:var(--card);border:1px solid var(--line);color:var(--text);text-decoration:none}
.share{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:28px 0;padding:18px 0;border-block:1px solid var(--line)}
.share-label{font-weight:700;margin-right:6px}
.author-box{display:flex;gap:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin:0 0 28px}
.author-box .avatar{border-radius:50%;flex:none}
.author-box p{margin:0 0 .4em;color:var(--muted)}
.author-name{color:var(--text)!important;font-weight:700}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:34px}
.pn{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px}
.pn span{display:block;color:var(--muted);font-size:.85rem;margin-bottom:4px}
.pn a{font-weight:700;color:var(--text);text-decoration:none}
.pn--next{text-align:right;grid-column:2}
.pn--prev{grid-column:1}
.related{padding-top:20px}

/* Comments */
.comments{margin-top:20px}
.comments-title,.comment-reply-title{font-size:1.5rem}
.comment-list{list-style:none;padding:0}
.comment-list .children{list-style:none;padding-left:26px}
.comment-body{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:14px}
.comment-author .avatar{float:left;margin-right:12px;border-radius:50%}
.comment-meta{font-size:.85rem;color:var(--muted)}
.comment-form input[type=text],.comment-form input[type=email],.comment-form input[type=url],.comment-form textarea{width:100%;padding:12px 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--card);color:var(--text);font:inherit}
.comment-form label{display:block;font-weight:700;margin-bottom:4px}

/* Ads */
.ad-slot{margin:26px auto;text-align:center;max-width:100%;overflow:hidden}
.ad-label{display:block;font-size:.72rem;color:var(--muted);margin-bottom:4px;letter-spacing:.02em}
.ad-header,.ad-footer{max-width:var(--wrap);padding-inline:20px}

/* Footer */
.site-footer{margin-top:60px;background:#0F1230;color:#C9CEEA;padding-top:54px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:38px}
.footer-grid:not(:has(> div:nth-child(4))){grid-template-columns:1.6fr 1fr 1fr}
.f-brand{font:800 1.5rem var(--head);color:#fff;margin-bottom:10px}
.f-title,.site-footer .widget-title{font:700 1.05rem var(--head);color:#fff;margin-bottom:14px}
.site-footer a{color:#C9CEEA;text-decoration:none}
.site-footer a:hover{color:var(--hl);text-decoration:underline}
.site-footer .widget{background:transparent;border:0;padding:0}
.site-footer .widget a{color:#C9CEEA;font-weight:400}
.f-list li{margin-bottom:9px}
.social{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.social a{border:1px solid #3A4080;border-radius:999px;padding:6px 13px;font-size:.88rem}
.f-bottom{border-top:1px solid #272C5E;padding-block:20px;font-size:.92rem}
.f-bottom p{margin:0}

.to-top{position:fixed;right:18px;bottom:18px;z-index:90;width:46px;height:46px;border-radius:50%;border:0;background:var(--ink);color:#fff;display:grid;place-items:center;cursor:pointer;box-shadow:var(--shadow)}
.to-top[hidden]{display:none}
[data-theme=dark] .to-top{background:var(--accent);color:var(--accent-ink)}
#progress{position:fixed;top:0;left:0;height:4px;width:0;background:var(--hl);z-index:300}
.not-found{padding-block:60px}
.not-found h1{font-size:clamp(2rem,5vw,3.2rem)}
.not-found .grid{margin-top:40px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.alignwide{max-width:min(100%,var(--wrap))}
.wp-caption,.gallery-caption,.wp-element-caption{font-size:.9rem;color:var(--muted)}

/* Responsive */
@media (max-width:1020px){
	.hero-in{grid-template-columns:1fr;gap:40px}
	.notebook{max-width:560px}
	.grid,.grid--3{grid-template-columns:repeat(2,1fr)}
	.layout{grid-template-columns:1fr}
	.sidebar{position:static}
	.footer-grid,.footer-grid:not(:has(> div:nth-child(4))){grid-template-columns:1fr 1fr}
	.join{grid-template-columns:1fr;padding:32px}
}
@media (max-width:780px){
	.menu-btn{display:grid}
	.main-nav{position:absolute;left:0;right:0;top:100%;margin:0;background:var(--bg);border-bottom:1px solid var(--line);padding:10px 20px 18px;display:none}
	.nav-open .main-nav{display:block}
	.main-nav .menu{flex-direction:column;gap:2px}
	.main-nav .sub-menu{position:static;display:block;border:0;box-shadow:none;padding:0 0 0 14px}
	.nav-open .ico-open{display:none}
	.nav-open .ico-close{display:block}
	.header-actions{margin-left:auto}
	.hero{padding:38px 0 36px}
}
@media (max-width:620px){
	body{font-size:1rem}
	.grid,.grid--2,.grid--3{grid-template-columns:1fr}
	.footer-grid,.footer-grid:not(:has(> div:nth-child(4))){grid-template-columns:1fr}
	.search-form{padding-left:16px}
	.search-form .btn{padding:12px 16px}
	.post-nav{grid-template-columns:1fr}
	.pn--next,.pn--prev{grid-column:auto;text-align:left}
	.author-box{flex-direction:column}
	.entry-content{font-size:1.06rem}
}
@media (prefers-reduced-motion:reduce){
	*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
	.notebook{transform:rotate(1.4deg)}
}
@media print{.site-header,.site-footer,.sidebar,.share,.to-top,#progress,.ad-slot,.comments,.post-nav{display:none!important}}