/*
Theme Name: A2ZTesting Training
Theme URI: https://a2ztesting.vn/
Author: A2ZTesting Training
Description: Theme giới thiệu khoá học Software Testing, Automation Testing, API Testing và AI/GenAI. Không phụ thuộc WooCommerce.
Version: 3.0.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: a2ztesting-training
*/

:root{
 --az-primary:#12366b;
 --az-primary-2:#0b2348;
 --az-cyan:#16b6d4;
 --az-cyan-2:#08a6c7;
 --az-bg:#f6f9fc;
 --az-card:#fff;
 --az-text:#10233f;
 --az-muted:#63748a;
 --az-border:#dfe8f1;
 --az-success:#159957;
 --az-warning:#f59e0b;
 --az-radius:18px;
 --az-shadow:0 14px 40px rgba(18,54,107,.10);
}
html{scroll-behavior:smooth}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--az-text);background:#fff;line-height:1.65}
body.dark-mode{--az-bg:#0b1220;--az-card:#111c2e;--az-text:#edf5ff;--az-muted:#a9bad0;--az-border:#263750;background:#09111e}
a{color:var(--az-primary);text-decoration:none}
body.dark-mode a{color:#59d6ef}
a:hover{color:var(--az-cyan-2)}
img{max-width:100%;height:auto}
.container{width:min(1180px,92%);margin:auto}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--az-border)}
body.dark-mode .site-header{background:rgba(9,17,30,.96)}
.header-inner{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.site-branding{display:flex;align-items:center;min-width:170px}
.site-logo{display:flex;align-items:center;gap:10px;font-weight:900;color:var(--az-primary-2);font-size:21px}
.site-logo img{width:auto;height:58px;max-width:210px;object-fit:contain}
.main-navigation ul{display:flex;align-items:center;gap:22px;list-style:none;margin:0;padding:0}
.main-navigation a{font-size:15px;font-weight:700;color:var(--az-text)}
.nav-actions{display:flex;align-items:center;gap:9px}
.icon-btn,.menu-toggle{border:1px solid var(--az-border);background:var(--az-card);color:var(--az-text);border-radius:10px;width:42px;height:42px;cursor:pointer;font-size:18px}
.menu-toggle{display:none}
.hero{background:linear-gradient(135deg,#eef8ff 0%,#fff 48%,#ecfbfd 100%);padding:54px 0 66px}
body.dark-mode .hero{background:linear-gradient(135deg,#0b203d,#0c1728 52%,#0b2630)}
.hero-grid{display:grid;grid-template-columns:1fr 1.08fr;gap:46px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--az-cyan-2);font-size:13px;font-weight:900;letter-spacing:.13em;text-transform:uppercase;margin-bottom:12px}
.hero h1{font-size:clamp(38px,5vw,62px);line-height:1.05;letter-spacing:-.045em;margin:0 0 18px}
.hero h1 span{color:var(--az-cyan-2)}
.hero p{font-size:18px;color:var(--az-muted);max-width:650px;margin:0 0 26px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:11px;padding:12px 20px;font-weight:850;border:2px solid transparent;cursor:pointer}
.btn-primary{background:var(--az-primary);color:#fff!important}
.btn-primary:hover{background:var(--az-primary-2)}
.btn-cyan{background:var(--az-cyan);color:#fff!important}
.btn-cyan:hover{background:var(--az-cyan-2);color:#fff!important}
.btn-outline{background:transparent;border-color:var(--az-primary);color:var(--az-primary)}
body.dark-mode .btn-outline{color:#fff;border-color:#59d6ef}
.btn-contact{background:var(--az-success);color:#fff!important}
.btn-contact:hover{background:#0e7a43;color:#fff!important}
.hero-cover{border-radius:22px;overflow:hidden;box-shadow:var(--az-shadow);border:1px solid rgba(18,54,107,.12);background:#fff}
.hero-cover img{display:block;width:100%}
.trust-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px}
.trust-item{display:flex;gap:9px;align-items:center;font-size:14px;font-weight:750;color:var(--az-muted)}
.trust-item strong{display:block;color:var(--az-text)}
.section{padding:76px 0}
.section-alt{background:var(--az-bg)}
.section-heading{max-width:720px;margin:0 auto 40px;text-align:center}
.section-heading h2{font-size:36px;line-height:1.2;letter-spacing:-.03em;margin:0 0 12px}
.section-heading p{color:var(--az-muted);margin:0}
.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.course-card{display:flex;flex-direction:column;background:var(--az-card);border:1px solid var(--az-border);border-radius:var(--az-radius);overflow:hidden;box-shadow:var(--az-shadow);transition:.2s}
.course-card:hover{transform:translateY(-4px)}
.course-image{height:180px;background:linear-gradient(135deg,#12366b,#16b6d4);display:flex;align-items:center;justify-content:center;color:#fff;text-align:center;padding:20px;overflow:hidden;position:relative}
.course-image .course-code{font-size:22px;font-weight:950;letter-spacing:.02em;line-height:1.3}
.course-image--photo{padding:0;background:#e8f0fa}
.course-image--photo img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease}
.course-card:hover .course-image--photo img{transform:scale(1.04)}
.course-body{padding:23px;display:flex;flex-direction:column;flex:1}
.course-meta{font-size:13px;color:var(--az-muted);font-weight:700;margin-bottom:8px}
.course-card h3{font-size:20px;line-height:1.3;margin:0 0 10px}
.course-card p{color:var(--az-muted);font-size:15px;margin:0 0 15px}
.course-footer{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px}
.course-price{font-size:21px;font-weight:900;color:var(--az-primary)}
.course-price small{font-size:13px;color:var(--az-muted);font-weight:600}
.badge{display:inline-block;padding:5px 9px;border-radius:99px;background:#e7f9fc;color:#087e98;font-size:12px;font-weight:850}
.badge-level{display:inline-block;padding:4px 10px;border-radius:99px;background:#f0f4ff;color:#3656c8;font-size:12px;font-weight:800}
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature{padding:27px;background:var(--az-card);border:1px solid var(--az-border);border-radius:var(--az-radius)}
.feature-icon{width:48px;height:48px;border-radius:13px;display:grid;place-items:center;background:#e7f9fc;color:#087e98;font-size:23px;margin-bottom:15px}
.feature h3{margin:0 0 7px}
.feature p{color:var(--az-muted);margin:0}
.cta{background:linear-gradient(120deg,var(--az-primary-2),var(--az-primary));color:#fff;padding:62px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
.cta h2{font-size:35px;margin:0 0 7px}
.cta p{color:#cfe0f5;margin:0}
.page-hero{background:linear-gradient(135deg,#eff8ff,#fff);padding:55px 0}
body.dark-mode .page-hero{background:#0c192a}
.page-hero h1{font-size:45px;line-height:1.15;margin:0 0 10px}
.page-hero p{color:var(--az-muted);max-width:760px}
.content-area{padding:65px 0}
.two-col{display:grid;grid-template-columns:minmax(0,1fr) 350px;gap:35px}
.content-card{background:var(--az-card);border:1px solid var(--az-border);border-radius:var(--az-radius);padding:28px;box-shadow:var(--az-shadow)}
.sticky-card{position:sticky;top:100px}
.price-large{font-size:36px;font-weight:950;color:var(--az-primary);margin:5px 0 16px}
body.dark-mode .price-large{color:#59d6ef}
.price-note{font-size:13px;color:var(--az-muted);margin:-10px 0 16px}
.curriculum{display:grid;gap:10px}
.lesson{border:1px solid var(--az-border);border-radius:12px;padding:15px 17px;background:var(--az-bg)}
.lesson-row{display:flex;justify-content:space-between;gap:15px;align-items:center}
.lesson-title{font-weight:800}
.lesson-meta{font-size:13px;color:var(--az-muted)}
.course-info-list{list-style:none;margin:0 0 18px;padding:0;display:grid;gap:9px}
.course-info-list li{display:flex;align-items:center;gap:9px;font-size:15px}
.contact-box{background:linear-gradient(135deg,#eef8ff,#f0fbff);border:1px solid var(--az-border);border-radius:var(--az-radius);padding:24px;text-align:center;margin-top:18px}
body.dark-mode .contact-box{background:linear-gradient(135deg,#0e1e33,#0c2232)}
.contact-box h3{margin:0 0 8px;font-size:18px}
.contact-box p{color:var(--az-muted);margin:0 0 16px;font-size:14px}
.contact-channels{display:flex;flex-direction:column;gap:9px}
.review-stars{color:#f59e0b;letter-spacing:2px}
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{border:1px solid var(--az-border);border-radius:16px;overflow:hidden;background:var(--az-card)}
.post-card-body{padding:21px}
.post-card h2{font-size:20px;margin:0 0 8px}
.site-footer{background:#06101e;color:#b9c9dc;padding:50px 0 25px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:35px}
.site-footer h3{color:#fff;margin:0 0 12px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin:7px 0}
.site-footer a{color:#c7d7e9}
.site-info{border-top:1px solid #203148;margin-top:35px;padding-top:20px;font-size:14px}
.screen-reader-text{position:absolute!important;clip:rect(1px,1px,1px,1px);width:1px;height:1px;overflow:hidden}
@media(max-width:900px){
 .main-navigation{display:none}.menu-toggle{display:block}
 .main-navigation.mobile-open{display:block;position:absolute;left:0;right:0;top:78px;background:var(--az-card);border-bottom:1px solid var(--az-border);padding:18px}
 .main-navigation.mobile-open ul{flex-direction:column;align-items:flex-start}
 .hero-grid,.two-col{grid-template-columns:1fr}
 .sticky-card{position:static}
 .course-grid,.features,.blog-grid{grid-template-columns:1fr 1fr}
 .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:620px){
 .header-inner{min-height:70px}.site-logo img{height:48px;max-width:155px}
 .nav-actions{gap:5px}.hero{padding:38px 0 50px}.hero-grid{gap:28px}
 .trust-row,.course-grid,.features,.blog-grid,.footer-grid{grid-template-columns:1fr}
 .section{padding:55px 0}.section-heading h2{font-size:30px}.page-hero h1{font-size:35px}
 .cta-inner{display:block}.cta .btn{margin-top:20px}
}