/*
Theme Name: Best4Team
Theme URI: https://github.com/tunglevn/viet-best4team
Description: Giao diện kho tài liệu SKKN Best4Team. Token tại DESIGN.md.
Version: 0.1.0
Requires at least: 6.5
Requires PHP: 8.3
Author: Best4Team
Text Domain: best4team
*/

/* ===== Blog / hub "Phương pháp" (M4) ===== */
.b4t-blog{padding-top:24px;padding-bottom:48px}  /* giữ lề ngang từ .b4t-container */
.b4t-blog__head{margin:8px 0 24px}
.b4t-blog__title{margin:0;font:800 clamp(22px,3vw,30px)/1.2 var(--b4t-font-sans);color:var(--b4t-color-ink)}
.b4t-blog__desc{margin-top:8px;color:var(--b4t-color-muted)}
.b4t-blog__list{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px}
.b4t-post-card{display:flex;flex-direction:column;background:var(--b4t-color-paper);border:1px solid var(--b4t-color-line);border-radius:var(--b4t-radius-md,12px);overflow:hidden;transition:box-shadow .18s,transform .18s}
.b4t-post-card:hover{box-shadow:var(--b4t-shadow-pop);transform:translateY(-2px)}
.b4t-post-card__thumb{display:block;aspect-ratio:16/9;overflow:hidden}
.b4t-post-card__thumb img{width:100%;height:100%;object-fit:cover}
.b4t-post-card__body{display:flex;flex-direction:column;gap:8px;padding:16px}
.b4t-post-card__title{margin:0;font:700 16px/1.35 var(--b4t-font-sans)}
.b4t-post-card__title a{color:var(--b4t-color-ink);text-decoration:none;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.b4t-post-card__title a:hover{color:var(--b4t-color-primary)}
.b4t-post-card__meta{color:var(--b4t-color-muted);font-size:12.5px}
.b4t-post-card__excerpt{margin:0;color:var(--b4t-color-muted);font-size:13.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.b4t-post-card__more{margin-top:auto;color:var(--b4t-color-primary);font-weight:600;font-size:13.5px;text-decoration:none}
.b4t-post-card__more:hover{text-decoration:underline;text-underline-offset:3px}
.b4t-blog .pagination,.b4t-blog nav.pagination{margin-top:32px}
.b4t-blog .nav-links{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.b4t-blog .page-numbers{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 12px;border:1px solid var(--b4t-color-line);border-radius:var(--b4t-radius-xs,8px);color:var(--b4t-color-ink);text-decoration:none;font-weight:600}
.b4t-blog .page-numbers.current{background:var(--b4t-color-primary);border-color:var(--b4t-color-primary);color:#fff}
.b4t-blog .page-numbers:hover:not(.current){border-color:var(--b4t-color-primary);color:var(--b4t-color-primary)}

/* Bài viết đơn */
.b4t-single-post{padding-top:24px;padding-bottom:56px}  /* giữ lề ngang từ .b4t-container */
.b4t-article{max-width:820px;margin:0 auto}
.b4t-article__title{margin:0 0 12px;font:800 clamp(24px,3.4vw,34px)/1.25 var(--b4t-font-sans);color:var(--b4t-color-ink)}
.b4t-article__meta{display:flex;flex-wrap:wrap;gap:12px;color:var(--b4t-color-muted);font-size:13.5px;margin-bottom:20px}
.b4t-article__meta a{color:var(--b4t-color-primary);text-decoration:none}
.b4t-article__thumb{margin:0 0 24px}
.b4t-article__thumb img{width:100%;height:auto;border-radius:var(--b4t-radius-md,12px)}
.b4t-prose{font-size:16px;line-height:1.75;color:var(--b4t-color-ink)}
.b4t-prose p{margin:0 0 1.1em}
.b4t-prose h2,.b4t-prose h3,.b4t-prose h4{margin:1.6em 0 .6em;line-height:1.3;color:var(--b4t-color-ink)}
.b4t-prose img{max-width:100%!important;height:auto!important;border-radius:8px;margin:1em 0}
/* figure/caption site cũ hay có inline width (vd style="width:700px") → cap về khung */
.b4t-prose figure,.b4t-prose .wp-caption{max-width:100%!important;width:auto!important;height:auto;margin:1em auto;text-align:center}
.b4t-prose .wp-caption-text,.b4t-prose figcaption{font-size:13px;color:var(--b4t-color-muted);text-align:center;margin-top:6px}
.b4t-prose a{color:var(--b4t-color-primary)}
.b4t-prose ul,.b4t-prose ol{margin:0 0 1.1em;padding-left:1.4em}
.b4t-prose li{margin:.3em 0}
/* bảng nội dung có cột width cố định → cho cuộn ngang, không vỡ khung.
   Nội dung site cũ đặt inline height (vd 82px) trên table/tr/td → kết hợp overflow-x:auto
   ép overflow-y thành auto → sinh scroll dọc + bảng bị bó thấp. Ép height:auto để bảng
   cao theo nội dung: hết scroll trục y, đọc trọn bảng. */
.b4t-prose table{display:block;max-width:100%;overflow-x:auto;overflow-y:visible;border-collapse:collapse;margin:1em 0;font-size:14.5px;height:auto!important}
.b4t-prose tr,.b4t-prose td,.b4t-prose th{height:auto!important}
.b4t-prose td,.b4t-prose th{border:1px solid var(--b4t-color-line);padding:8px 10px}
.b4t-prose iframe,.b4t-prose embed,.b4t-prose video{max-width:100%!important}
.b4t-prose{overflow-wrap:break-word}

/* Tin tức (P5 yc18/19): mục lục, author box, bài liên quan */
.b4t-toc{margin:18px 0 22px;padding:16px 20px;background:var(--b4t-color-primary-soft);border:1px solid var(--b4t-color-line);border-radius:var(--b4t-radius-lg)}
.b4t-toc__title{margin:0 0 8px;font-weight:800;color:var(--b4t-color-primary-strong)}
.b4t-toc ul{margin:0;padding:0 0 0 4px;list-style:none}
.b4t-toc li{margin:5px 0;line-height:1.4}
.b4t-toc__h3{padding-left:18px;font-size:14px}
.b4t-toc a{color:var(--b4t-color-primary);text-decoration:none}
.b4t-toc a:hover{text-decoration:underline}
.b4t-authorbox{display:flex;gap:16px;align-items:flex-start;margin:32px 0 0;padding:20px;background:var(--b4t-color-bg);border:1px solid var(--b4t-color-line);border-radius:var(--b4t-radius-xl)}
.b4t-authorbox__logo{flex:none;width:52px;height:52px;border-radius:12px;background:var(--b4t-color-primary);color:#fff;display:grid;place-items:center;font:800 20px/1 var(--b4t-font-sans)}
.b4t-authorbox__body strong{display:block;font-size:16px;color:var(--b4t-color-ink)}
.b4t-authorbox__body p{margin:6px 0 8px;color:var(--b4t-color-muted);font-size:14px}
.b4t-authorbox__zalo{display:inline-block;padding:8px 16px;background:var(--b4t-color-accent);color:var(--b4t-color-on-accent);border-radius:var(--b4t-radius-full);font-weight:700;font-size:13px;text-decoration:none}
.b4t-single-post .b4t-related{margin:40px 0 0}
.b4t-single-post .b4t-related__head{border-bottom:1px solid var(--b4t-color-line);padding-bottom:10px;margin-bottom:16px}
.b4t-single-post .b4t-related__head h2{font-size:20px;margin:0}
.b4t-single-post .b4t-related__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.b4t-single-post .b4t-related__card{background:var(--b4t-color-paper);border:1px solid var(--b4t-color-line);border-radius:var(--b4t-radius-lg);overflow:hidden}
.b4t-single-post .b4t-related__cover{display:block;height:140px;overflow:hidden;background:var(--b4t-color-primary-soft)}
.b4t-single-post .b4t-related__cover img{width:100%;height:100%;object-fit:cover}
.b4t-single-post .b4t-related__body{padding:12px 14px}
.b4t-single-post .b4t-related__body h3{font-size:14px;line-height:1.4;margin:0 0 6px}
.b4t-single-post .b4t-related__body h3 a{color:var(--b4t-color-ink);text-decoration:none}
.b4t-single-post .b4t-related__body p{margin:0;color:var(--b4t-color-muted);font-size:12.5px}
@media(max-width:768px){.b4t-single-post .b4t-related__grid{grid-template-columns:1fr 1fr}.b4t-authorbox{flex-direction:column}}
@media(max-width:480px){.b4t-single-post .b4t-related__grid{grid-template-columns:1fr}}

/* Trang tĩnh Về chúng tôi / Liên hệ (yc6) */
.b4t-page{padding-top:28px;padding-bottom:56px}
.b4t-page__head{max-width:760px;margin:0 auto 28px;text-align:center}
.b4t-page__head h1{margin:0;font:800 clamp(26px,3.4vw,36px)/1.2 var(--b4t-font-sans);color:var(--b4t-color-ink)}
.b4t-page__head p{margin:12px 0 0;color:var(--b4t-color-muted);font-size:15.5px;line-height:1.6}
.b4t-page__thumb{margin:0 auto 28px;max-width:900px}
.b4t-page__thumb img{width:100%;height:auto;border-radius:var(--b4t-radius-lg)}
.b4t-about .b4t-page__body,.b4t-contact .b4t-page__body,.b4t-page:not(.b4t-about):not(.b4t-contact) .b4t-page__body{max-width:820px;margin:24px auto 0}
.b4t-page--hoi-dong-chuyen-mon .b4t-prose img{max-width:280px!important;border-radius:var(--b4t-radius-lg)} /* ảnh thành viên hội đồng vừa khổ */
.b4t-contact__cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:900px;margin:0 auto 28px}
.b4t-contact__card{display:flex;flex-direction:column;gap:4px;padding:20px;background:var(--b4t-color-paper);border:1px solid var(--b4t-color-line);border-radius:var(--b4t-radius-lg);box-shadow:var(--b4t-shadow-rest);text-decoration:none;transition:box-shadow .18s,transform .18s}
.b4t-contact__card:hover{box-shadow:var(--b4t-shadow-hover);transform:translateY(-2px)}
.b4t-contact__card span{color:var(--b4t-color-muted);font-size:13px}
.b4t-contact__card strong{color:var(--b4t-color-primary);font:800 18px/1.2 var(--b4t-font-sans)}
.b4t-contact__offices{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:1000px;margin:0 auto}
.b4t-contact__office h2{margin:0 0 6px;font:700 18px/1.3 var(--b4t-font-sans);color:var(--b4t-color-ink)}
.b4t-contact__office p{margin:0 0 12px;color:var(--b4t-color-muted);font-size:14px}
.b4t-contact__office iframe{width:100%;height:240px;border:0;border-radius:var(--b4t-radius-lg)}
/* header nhóm tiêu đề Tin tức + Xem tất cả */
.b4t-group__head{display:flex;align-items:baseline;justify-content:space-between;gap:16px}
.b4t-group__all{color:var(--b4t-color-primary);font-weight:700;font-size:14px;text-decoration:none;white-space:nowrap}
.b4t-group__all:hover{text-decoration:underline}
@media(max-width:768px){.b4t-contact__cards{grid-template-columns:1fr}.b4t-contact__offices{grid-template-columns:1fr}}