/*
Theme Name: LearnStack
Theme URI: https://learnstack-lms.com/
Author: MohamedKhalifa.pro
Author URI: https://learnstack-lms.com/
Description: A clean, flat, soft-blue theme that matches the LearnStack LMS plugin — near-monochrome greys with a soft-blue accent, generous whitespace, and full RTL / Arabic support. Built for the LearnStack store (marketing pages + WooCommerce).
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.8
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: learnstack
*/

/* ===================== Design tokens (match the plugin) ===================== */
:root{
	--c-primary:#3B82F6; --c-primary-d:#2563EB; --c-tint:#EFF4FE;
	--c-navy:#0F172A; --c-navy-2:#1E293B; --c-ink:#334155; --c-muted:#8A94A6; --c-faint:#B6BCC6;
	--c-line:#EAECEF; --c-line-2:#F1F2F4; --c-app:#F7F8FA; --c-paper:#ffffff; --c-hover:#F4F5F7;
	--c-green:#16a34a; --c-amber:#b45309; --c-red:#dc2626;
	--radius:16px; --radius-sm:10px;
	--sans:'Inter','IBM Plex Sans Arabic',system-ui,-apple-system,'Segoe UI',Tajawal,sans-serif;
	--maxw:1180px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--c-ink);background:var(--c-paper);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--c-primary-d);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{color:var(--c-navy);line-height:1.2;margin:0 0 .5em;font-weight:800}
p{margin:0 0 1em}
.ls-wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* buttons */
.ls-btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;padding:12px 22px;border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;text-decoration:none;transition:filter .15s ease,background .15s ease,border-color .15s ease}
.ls-btn:hover{text-decoration:none}
.ls-btn-primary{background:var(--c-primary);color:#fff}
.ls-btn-primary:hover{filter:brightness(.94);color:#fff}
.ls-btn-tint{background:var(--c-tint);color:var(--c-primary-d)}
.ls-btn-tint:hover{filter:brightness(.97)}
.ls-btn-ghost{background:var(--c-paper);border-color:var(--c-line);color:var(--c-navy)}
.ls-btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-d)}
.ls-btn-lg{padding:15px 28px;font-size:16px}

/* ===================== Header ===================== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--c-line)}
.site-header-in{display:flex;align-items:center;gap:24px;height:68px}
.site-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--c-navy);text-decoration:none}
.site-brand img{max-height:34px;width:auto}
.site-brand .brand-mark{width:30px;height:30px;border-radius:8px;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-size:15px}
.main-nav{margin-inline-start:auto}
.main-nav ul{display:flex;gap:6px;list-style:none;margin:0;padding:0}
.main-nav a{display:inline-block;padding:8px 14px;border-radius:8px;color:var(--c-ink);font-weight:600;font-size:14.5px;text-decoration:none}
.main-nav a:hover{background:var(--c-hover);color:var(--c-navy)}
.main-nav .current-menu-item>a{color:var(--c-primary-d)}
.header-cta{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;color:var(--c-navy);padding:8px}
.nav-toggle svg{width:24px;height:24px}

/* ===================== Hero ===================== */
.hero{background:linear-gradient(180deg,var(--c-app),#fff);padding:72px 0 40px;border-bottom:1px solid var(--c-line)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-eyebrow{display:inline-block;background:var(--c-tint);color:var(--c-primary-d);font-weight:700;font-size:13px;padding:6px 14px;border-radius:99px;margin-bottom:18px}
.hero h1{font-size:clamp(30px,5vw,50px);letter-spacing:-.02em;margin-bottom:16px}
.hero p.lead{font-size:18px;color:var(--c-ink);max-width:520px;margin-bottom:26px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-note{margin-top:16px;color:var(--c-muted);font-size:13.5px}
.hero-media{background:#0F1521;border-radius:var(--radius);aspect-ratio:16/11;border:1px solid var(--c-line);overflow:hidden;display:grid;place-items:center;box-shadow:0 30px 60px -30px rgba(15,23,42,.35)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media .play{width:64px;height:64px;border-radius:50%;background:rgba(255,255,255,.14);display:grid;place-items:center;color:#fff;font-size:22px}

/* ===================== Sections ===================== */
.section{padding:64px 0}
.section.alt{background:var(--c-app);border-block:1px solid var(--c-line)}
.section-head{text-align:center;max-width:640px;margin:0 auto 40px}
.section-head .eyebrow{color:var(--c-primary-d);font-weight:700;font-size:13px;letter-spacing:.06em;text-transform:uppercase}
.section-head h2{font-size:clamp(26px,3.5vw,36px);margin:8px 0 10px}
.section-head p{color:var(--c-muted);font-size:16px}

/* features */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feature{background:var(--c-paper);border:1px solid var(--c-line);border-radius:var(--radius);padding:24px}
.feature .fi{width:44px;height:44px;border-radius:11px;background:var(--c-tint);color:var(--c-primary-d);display:grid;place-items:center;margin-bottom:14px}
.feature .fi svg{width:22px;height:22px}
.feature h3{font-size:17px;margin-bottom:6px}
.feature p{color:var(--c-muted);font-size:14.5px;margin:0}

/* steps */
.grid-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step}
.step{background:var(--c-paper);border:1px solid var(--c-line);border-radius:var(--radius);padding:24px;position:relative}
.step .n{width:30px;height:30px;border-radius:50%;background:var(--c-primary);color:#fff;font-weight:800;display:grid;place-items:center;margin-bottom:12px}
.step h3{font-size:16px;margin-bottom:5px}
.step p{color:var(--c-muted);font-size:14.5px;margin:0}

/* pricing */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch;max-width:940px;margin:0 auto}
.plan{background:var(--c-paper);border:1px solid var(--c-line);border-radius:var(--radius);padding:26px;display:flex;flex-direction:column}
.plan.featured{border-color:var(--c-primary);box-shadow:0 20px 50px -30px rgba(37,99,235,.5)}
.plan .badge{align-self:flex-start;background:var(--c-tint);color:var(--c-primary-d);font-size:12px;font-weight:700;padding:4px 12px;border-radius:99px;margin-bottom:12px}
.plan h3{font-size:19px;margin-bottom:4px}
.plan .price{font-size:34px;font-weight:800;color:var(--c-navy);margin:6px 0}
.plan .price small{font-size:14px;font-weight:600;color:var(--c-muted)}
.plan ul{list-style:none;margin:16px 0 22px;padding:0;display:flex;flex-direction:column;gap:10px}
.plan li{display:flex;gap:9px;align-items:flex-start;font-size:14.5px;color:var(--c-ink)}
.plan li svg{width:18px;height:18px;color:var(--c-green);flex:0 0 auto;margin-top:2px}
.plan .ls-btn{margin-top:auto;justify-content:center}

/* quote / cta */
.quote{max-width:760px;margin:0 auto;text-align:center}
.quote blockquote{font-size:22px;color:var(--c-navy);font-weight:600;line-height:1.5;margin:0 0 18px}
.quote cite{color:var(--c-muted);font-style:normal;font-weight:600}
.cta-band{background:var(--c-navy);border-radius:var(--radius);padding:48px;text-align:center;color:#fff}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,34px)}
.cta-band p{color:rgba(255,255,255,.75);max-width:520px;margin:0 auto 22px}

/* faq */
.faq{max-width:760px;margin:0 auto}
.faq details{background:var(--c-paper);border:1px solid var(--c-line);border-radius:var(--radius-sm);padding:16px 20px;margin-bottom:12px}
.faq summary{font-weight:700;color:var(--c-navy);cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq details[open] summary{margin-bottom:10px}
.faq p{color:var(--c-muted);font-size:14.5px;margin:0}

/* ===================== Content pages / blog ===================== */
.page-hero{background:var(--c-app);border-bottom:1px solid var(--c-line);padding:48px 0}
.page-hero h1{font-size:clamp(28px,4vw,40px);margin:0}
.content{padding:48px 0}
.entry{max-width:760px;margin:0 auto}
.entry img{border-radius:var(--radius-sm)}
.entry h2{margin-top:1.4em}
.entry blockquote{border-inline-start:3px solid var(--c-primary);background:var(--c-app);padding:14px 18px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--c-navy-2)}
.entry code{background:var(--c-app);padding:2px 6px;border-radius:5px;font-size:.9em}
.entry pre{background:#0F1521;color:#e5e7eb;padding:16px;border-radius:var(--radius-sm);overflow:auto}
.post-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post-card{background:var(--c-paper);border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.post-card .thumb{aspect-ratio:16/10;background:var(--c-line-2);overflow:hidden}
.post-card .thumb img{width:100%;height:100%;object-fit:cover}
.post-card .body{padding:18px}
.post-card h3{font-size:17px;margin-bottom:6px}
.post-card h3 a{color:var(--c-navy);text-decoration:none}
.post-card .meta{color:var(--c-muted);font-size:12.5px;margin-bottom:8px}
.post-card p{color:var(--c-muted);font-size:14px;margin:0}
.pagination{display:flex;gap:8px;justify-content:center;margin-top:34px}
.pagination .page-numbers{display:inline-flex;min-width:38px;height:38px;align-items:center;justify-content:center;border:1px solid var(--c-line);border-radius:9px;color:var(--c-navy);text-decoration:none;padding:0 12px}
.pagination .page-numbers.current{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* ===================== Footer ===================== */
.site-footer{background:var(--c-app);border-top:1px solid var(--c-line);padding:52px 0 26px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.footer-col h4{font-size:13px;text-transform:uppercase;letter-spacing:.05em;color:var(--c-muted);margin-bottom:12px}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.footer-col a{color:var(--c-ink);font-size:14px;text-decoration:none}
.footer-col a:hover{color:var(--c-primary-d)}
.footer-about p{color:var(--c-muted);font-size:14px;max-width:280px}
.footer-bottom{border-top:1px solid var(--c-line);margin-top:30px;padding-top:20px;color:var(--c-muted);font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ===================== WooCommerce niceties ===================== */
.woocommerce-store-notice{background:var(--c-navy)!important}
.woocommerce ul.products li.product,.woocommerce-page ul.products li.product{background:var(--c-paper);border:1px solid var(--c-line);border-radius:var(--radius);padding:14px;text-align:center}
.woocommerce a.button,.woocommerce button.button,.woocommerce input.button,.woocommerce #respond input#submit,.woocommerce .button.alt{background:var(--c-primary)!important;color:#fff!important;border-radius:var(--radius-sm)!important;font-weight:700!important;border:0!important}
.woocommerce a.button:hover,.woocommerce button.button:hover,.woocommerce .button.alt:hover{filter:brightness(.94)}
.woocommerce span.price,.woocommerce div.product p.price{color:var(--c-navy)!important;font-weight:800}
.woocommerce .woocommerce-message,.woocommerce .woocommerce-info{border-top-color:var(--c-primary)!important}

/* ===================== 404 / search ===================== */
.centered-msg{text-align:center;padding:80px 0}
.centered-msg h1{font-size:64px;color:var(--c-primary)}
.search-form{display:flex;gap:8px;max-width:440px;margin:18px auto 0}
.search-form input[type=search]{flex:1;border:1px solid var(--c-line);border-radius:var(--radius-sm);padding:11px 14px;font-family:inherit}

/* ===================== Responsive ===================== */
@media(max-width:900px){
	.hero-grid{grid-template-columns:1fr;gap:30px}
	.grid-3,.grid-steps,.post-list{grid-template-columns:1fr 1fr}
	.pricing{grid-template-columns:1fr;max-width:420px}
	.footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
	.main-nav,.header-cta .ls-btn-ghost{display:none}
	.nav-toggle{display:inline-flex}
	.main-nav.open{display:block;position:absolute;top:68px;inset-inline:0;background:#fff;border-bottom:1px solid var(--c-line);padding:10px 24px}
	.main-nav.open ul{flex-direction:column;gap:2px}
	.grid-3,.grid-steps,.post-list,.footer-grid{grid-template-columns:1fr}
	.section{padding:48px 0}
	.cta-band{padding:32px 20px}
}

/* ===================== RTL ===================== */
html[dir="rtl"] body{font-family:'IBM Plex Sans Arabic',var(--sans)}
html[dir="rtl"] .hero p.lead{margin-inline:0}