/* =============================================================
   resources → public/css/pages.css
   Bổ sung cho các trang con. Nạp SAU style.css.
   ============================================================= */

/* ---------------------------------------------------- breadcrumb */
.breadcrumb{margin-bottom:14px;font-size:12.5px;color:var(--muted)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.breadcrumb li{display:flex;align-items:center;gap:6px}
.breadcrumb li+li::before{content:"/";color:var(--muted-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb [aria-current]{color:var(--ink-2);font-weight:500}

/* -------------------------------------------------- page header */
.page-head{margin-top:var(--gap)}
.page-title{font-size:26px;font-weight:800;letter-spacing:-.02em;line-height:1.25}
.page-desc{margin-top:10px;max-width:70ch;font-size:14px;line-height:1.75;color:var(--muted)}
.page-desc p+p{margin-top:10px}

/* --------------------------------------------------- filter bar */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;padding:14px}
.filter-chip{padding:6px 13px;border:1px solid var(--line);border-radius:20px;font-size:13px;
    font-weight:500;color:var(--ink-2);transition:all .18s ease}
.filter-chip:hover{border-color:#d8cffb;color:var(--primary);background:var(--primary-050)}
.filter-chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff}

/* ------------------------------------------------------ article */
.article{max-width:none}
.article-head{padding-bottom:18px;border-bottom:1px solid var(--line-2)}
.article-title{font-size:30px;font-weight:800;line-height:1.28;letter-spacing:-.022em}
.article-excerpt{margin-top:12px;font-size:15px;line-height:1.7;color:var(--muted)}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:16px;
    font-size:12.5px;color:var(--muted)}
.article-meta .author{display:inline-flex;align-items:center;gap:7px}
.article-meta .author img{width:22px;height:22px;border-radius:50%;object-fit:cover}
.article-meta .author a:hover{color:var(--primary)}
.article-meta .updated{color:var(--money);font-weight:500}
.article-reviewer{margin-top:8px;font-size:12.5px;color:var(--muted)}
.verified-badge{padding:3px 9px;border-radius:20px;background:#e7f8f0;color:var(--money);
    font-size:11.5px;font-weight:600}

.affiliate-notice{margin-top:14px;padding:11px 14px;border-left:3px solid var(--primary);
    border-radius:0 8px 8px 0;background:var(--primary-050);font-size:12.5px;line-height:1.65;color:#4a4166}

.article-thumb{margin:20px 0}
.article-thumb img{width:100%;border-radius:12px;aspect-ratio:16/9;object-fit:cover}

/* ---------------------------------------------------------- toc */
.toc{margin:20px 0;padding:16px 18px;border:1px solid var(--line);border-radius:12px;background:#fbfbfe}
.toc-title{font-size:13px;font-weight:700;color:var(--ink);margin-bottom:10px}
.toc ol{counter-reset:toc}
.toc li{margin-bottom:7px;font-size:13.5px;line-height:1.5}
.toc li a{color:var(--ink-2)}
.toc li a:hover{color:var(--primary)}
.toc .toc-h3{padding-left:18px;font-size:13px;color:var(--muted)}

/* --------------------------------------------------- nội dung bài */
.article-body{font-size:15.5px;line-height:1.8;color:#2a3142}
.article-body > *+*{margin-top:16px}
.article-body h2{margin-top:34px;font-size:22px;font-weight:700;letter-spacing:-.015em;scroll-margin-top:90px}
.article-body h3{margin-top:26px;font-size:17.5px;font-weight:700;scroll-margin-top:90px}
.article-body h4{margin-top:20px;font-size:15.5px;font-weight:700}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:2px}
.article-body a:hover{color:var(--primary-600)}
.article-body ul,.article-body ol{padding-left:22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:7px}
.article-body img{max-width:100%;height:auto;border-radius:10px;margin:20px 0}
.article-body blockquote{padding:14px 18px;border-left:3px solid var(--primary);
    border-radius:0 8px 8px 0;background:#fbfbfe;color:var(--muted);font-style:italic}
.article-body pre{padding:16px;border-radius:10px;background:#0f1223;color:#e6e8f5;
    overflow-x:auto;font-size:13px;line-height:1.65}
.article-body code{padding:2px 6px;border-radius:5px;background:#f2f3f8;
    font-family:ui-monospace,'SF Mono',Menlo,monospace;font-size:.9em}
.article-body pre code{padding:0;background:none;color:inherit}
.article-body table{width:100%;border-collapse:collapse;font-size:14px}
.article-body th,.article-body td{padding:10px 12px;border:1px solid var(--line);text-align:left}
.article-body th{background:#fafafd;font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line)}

/* --------------------------------------------------------- tags */
.article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px;padding-top:20px;
    border-top:1px solid var(--line-2)}
.tag{padding:5px 12px;border:1px solid var(--line);border-radius:20px;font-size:12.5px;color:var(--muted)}
.tag:hover{border-color:#d8cffb;color:var(--primary)}

/* ---------------------------------------------------------- faq */
.article-faq{margin-top:30px}
.article-faq h2,.article-faq .panel-title{margin-bottom:12px;font-size:20px;font-weight:700}
.article-faq details{border:1px solid var(--line);border-radius:10px;margin-bottom:10px;overflow:hidden}
.article-faq summary{padding:13px 16px;cursor:pointer;font-weight:600;font-size:14.5px;list-style:none}
.article-faq summary::-webkit-details-marker{display:none}
.article-faq summary::after{content:"+";float:right;color:var(--muted-2);font-weight:400}
.article-faq details[open] summary::after{content:"−"}
.article-faq details > div{padding:0 16px 14px;font-size:14px;line-height:1.75;color:var(--muted)}

/* ---------------------------------------------------- author box */
.author-box{display:flex;gap:16px;margin-top:30px;padding:20px;border:1px solid var(--line);
    border-radius:12px;background:#fbfbfe}
.author-avatar{width:72px;height:72px;border-radius:50%;object-fit:cover;flex:0 0 auto}
.author-label{font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted-2)}
.author-name{margin-top:3px;font-size:17px;font-weight:700}
.author-name a:hover{color:var(--primary)}
.author-role{margin-top:2px;font-size:13px;color:var(--primary);font-weight:500}
.author-bio{margin-top:9px;font-size:13.5px;line-height:1.7;color:var(--muted)}
.author-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:11px}
.author-links a{font-size:12.5px;color:var(--muted);text-decoration:underline;text-underline-offset:2px}
.author-links a:hover{color:var(--primary)}

/* ------------------------------------------------ trang tác giả */
.author-profile-head{display:flex;gap:22px;align-items:flex-start;margin-top:6px}
.author-profile-avatar{width:120px;height:120px;border-radius:50%;object-fit:cover;flex:0 0 auto}
.author-profile-name{font-size:27px;font-weight:800;letter-spacing:-.02em}
.author-profile-role{margin-top:5px;font-size:15px;color:var(--primary);font-weight:600}
.author-profile-exp{margin-top:4px;font-size:13.5px;color:var(--muted)}
.author-contact{margin-top:10px;font-size:13.5px}
.author-contact a{color:var(--primary)}
.author-profile-bio{margin-top:22px}
.author-credentials{margin-top:24px;padding-top:20px;border-top:1px solid var(--line-2)}
.author-credentials h2{font-size:18px;font-weight:700;margin-bottom:10px}

/* ------------------------------------------------------ lưới thẻ */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.post-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.case-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.res-grid-lg{grid-template-columns:repeat(4,minmax(0,1fr))}

.tool-card{display:flex;flex-direction:column;gap:9px;padding:18px;border:1px solid var(--line);
    border-radius:12px;background:#fff;transition:all .18s ease}
.tool-card:hover{border-color:#d8cffb;box-shadow:var(--shadow-2);transform:translateY(-2px)}
.tool-card img{width:48px;height:48px;object-fit:contain}
.tool-card b{font-size:14.5px;font-weight:700;color:var(--ink)}
.tool-card p{font-size:13px;line-height:1.6;color:var(--muted)}
.tool-card-foot{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:6px;
    font-size:11.5px;color:var(--muted-2)}
.badge-free{padding:2px 8px;border-radius:20px;background:#e7f8f0;color:var(--money);font-weight:600}
.badge-model{padding:2px 8px;border-radius:20px;background:var(--primary-050);color:var(--primary);font-weight:600}
.badge-soon{display:inline-block;padding:4px 12px;border-radius:20px;background:#fff4e5;
    color:#b45309;font-size:12px;font-weight:600}

.prompt-lg{padding:18px}
.prompt-lg .prompt-head img{width:32px;height:32px}
.prompt-lg .prompt-head b{font-size:14.5px}

.course-card{display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--line);
    border-radius:12px;background:#fff;transition:all .18s ease}
.course-card:hover{border-color:#d8cffb;box-shadow:var(--shadow-2);transform:translateY(-2px)}
.course-card > img{width:100%;aspect-ratio:16/9;object-fit:cover}
.course-card-body{padding:14px;display:flex;flex-direction:column;gap:6px;flex:1}
.course-card-body b{font-size:14.5px;font-weight:700}
.course-card-body p{font-size:12.5px;line-height:1.6;color:var(--muted)}
.course-card-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:auto;padding-top:8px}

/* ----------------------------------------------------- case study */
.case-hero-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px;
    margin:20px 0;padding:18px;border:1px solid var(--line);border-radius:12px;background:#fbfbfe}
.case-hero-stats div{display:flex;flex-direction:column;gap:3px}
.case-hero-stats b{font-size:22px;font-weight:800;letter-spacing:-.02em}
.case-hero-stats b.money{color:var(--money)}
.case-hero-stats span{font-size:12px;color:var(--muted-2)}
.case-proof{margin:24px 0}
.case-proof img{width:100%;border-radius:10px;border:1px solid var(--line)}
.case-proof figcaption{margin-top:8px;font-size:12px;color:var(--muted-2);text-align:center}
.case-lessons{margin-top:26px;padding-top:20px;border-top:1px solid var(--line-2)}
.case-lessons h2{font-size:19px;font-weight:700;margin-bottom:10px}
.case-disclaimer{margin-top:22px;padding:12px 15px;border:1px solid #fde68a;border-radius:8px;
    background:#fffbeb;font-size:12.5px;line-height:1.65;color:#92400e}

/* -------------------------------------------------------- khoá học */
.check-list li{position:relative;padding-left:26px;margin-bottom:9px;font-size:14.5px;line-height:1.6}
.check-list li::before{content:"";position:absolute;left:0;top:7px;width:14px;height:8px;
    border-left:2px solid var(--money);border-bottom:2px solid var(--money);transform:rotate(-45deg)}
.lesson-list{counter-reset:lesson}
.lesson-list li{display:flex;align-items:center;gap:12px;padding:12px 0;border-top:1px solid var(--line-2)}
.lesson-list li:first-child{border-top:0}
.lesson-list li::before{counter-increment:lesson;content:counter(lesson);flex:0 0 auto;
    width:26px;height:26px;display:grid;place-items:center;border-radius:50%;
    background:var(--primary-050);color:var(--primary);font-size:12px;font-weight:700}
.lesson-title{flex:1;font-size:14.5px}
.lesson-meta{display:flex;gap:10px;font-size:12px;color:var(--muted-2)}
.lesson-meta em{font-style:normal;color:var(--money);font-weight:600}

.course-buy-thumb{width:100%;border-radius:10px;aspect-ratio:16/9;object-fit:cover;margin-bottom:14px}
.course-price{font-size:26px;font-weight:800;color:var(--primary);letter-spacing:-.02em}
.course-facts{margin:14px 0}
.course-facts li{display:flex;justify-content:space-between;padding:9px 0;
    border-top:1px solid var(--line-2);font-size:13.5px}
.course-facts li span{color:var(--muted)}
.course-facts li b{font-weight:600}

/* --------------------------------------------------- prompt detail */
.prompt-body{padding:18px;border:1px solid var(--line);border-radius:10px;background:#0f1223;
    color:#e6e8f5;font-family:ui-monospace,'SF Mono',Menlo,monospace;font-size:13px;line-height:1.7;
    white-space:pre-wrap;word-break:break-word}
.prompt-model{margin-top:12px;font-size:13px;color:var(--muted)}

/* ------------------------------------------------- form tài nguyên */
.resource-form input[type=email],
.contact-form input,.contact-form textarea{width:100%;padding:10px 13px;border:1px solid var(--line);
    border-radius:9px;background:#fff;font-size:14px;font-family:inherit;color:var(--ink)}
.resource-form input:focus,.contact-form input:focus,.contact-form textarea:focus{
    outline:none;border-color:#c9bcfa;box-shadow:0 0 0 4px rgba(75,40,218,.08)}
.contact-form label{display:block;margin:14px 0 6px;font-size:13.5px;font-weight:600}
.contact-form label .req{color:#dc2626}
.contact-form .btn{margin-top:18px}
.resource-meta{margin-bottom:16px}
.resource-meta li{display:flex;justify-content:space-between;padding:9px 0;
    border-top:1px solid var(--line-2);font-size:13.5px}
.resource-meta li span{color:var(--muted)}
.consent{display:flex;align-items:flex-start;gap:9px;margin:12px 0;font-size:12.5px;
    line-height:1.6;color:var(--muted)}
.consent input{margin-top:3px;flex:0 0 auto}
.form-error{display:block;margin-top:6px;font-size:12.5px;color:#dc2626}
.form-success{margin-bottom:14px;padding:11px 14px;border:1px solid #a7f3d0;border-radius:9px;
    background:#ecfdf5;font-size:13px;color:#047857}
.contact-list{margin-top:22px}
.contact-list li{display:flex;gap:14px;padding:11px 0;border-top:1px solid var(--line-2);font-size:14px}
.contact-list li span{min-width:90px;color:var(--muted)}
.contact-list li a{color:var(--primary)}

/* ------------------------------------------------------- tìm kiếm */
.search-page-form{margin-top:16px;width:100%;max-width:560px}
.search-count{margin-top:12px;font-size:13.5px;color:var(--muted)}

/* --------------------------------------------------- trang tĩnh */
.page-article{margin-top:var(--gap)}
.page-updated{margin-top:8px;font-size:12.5px;color:var(--muted-2)}
.page-article .article-body{margin-top:20px}

/* ----------------------------------------------------- trạng thái */
.empty-state{padding:56px 20px;text-align:center;color:var(--muted)}
.empty-state svg{margin:0 auto 14px;color:var(--muted-2);stroke-width:1.4}
.empty-state p{font-size:14.5px}

.error-page{margin-top:var(--gap);padding:60px 24px;text-align:center}
.error-code{font-size:64px;font-weight:800;color:var(--primary);letter-spacing:-.04em;line-height:1}
.error-title{margin-top:10px;font-size:24px;font-weight:700}
.error-text{margin-top:10px;font-size:14.5px;color:var(--muted)}
.error-page .hero-search{margin:22px auto 0}
.error-links{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:20px}

/* ------------------------------------------------------ phân trang */
.pagination-wrap{margin-top:22px}
.pagination-wrap nav{display:flex;justify-content:center}

/* ------------------------------------------------------ responsive */
@media (max-width:1080px){
    .card-grid,.post-grid-3,.case-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
    .res-grid-lg{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:860px){
    .article-title{font-size:25px}
    .author-profile-head{flex-direction:column;gap:14px}
    .author-profile-avatar{width:88px;height:88px}
}
@media (max-width:620px){
    .card-grid,.post-grid-3,.case-grid-3{grid-template-columns:minmax(0,1fr)}
    .res-grid-lg{grid-template-columns:repeat(2,minmax(0,1fr))}
    .page-title{font-size:22px}
    .article-title{font-size:22px}
    .article-body{font-size:15px}
    .article-body h2{font-size:19px}
    .author-box{flex-direction:column}
    .error-code{font-size:48px}
}

/* ---------------------------------------------------- khối quảng cáo */
.ad-block{margin:26px 0;padding:12px;border:1px solid var(--line-2);border-radius:10px;
    background:#fcfcfe;text-align:center;min-height:100px}
.ad-label{display:block;margin-bottom:8px;font-size:10.5px;text-transform:uppercase;
    letter-spacing:.06em;color:var(--muted-2)}
.ad-block .adsbygoogle{display:block;min-height:90px}
.col-side .ad-block{margin:0}