/* Mobile-first: viết cho 360–430px trước, mở rộng ở min-width. Chỉ áp trong .lgkm-en. */
.lgkm-en{--en-ink:#172c3b;--en-muted:#4b5f70;--en-accent:#0f5e59;--en-accent-ink:#0b4743;--en-line:#d9e4e8;--en-soft:#edf6f4;--en-chat:#f2f5f7;max-width:760px;margin:12px auto 32px;color:var(--en-ink);font-size:17px;line-height:1.6;overflow-wrap:anywhere}
.lgkm-en,.lgkm-en *{box-sizing:border-box;min-width:0}
.lgkm-en [hidden]{display:none!important}
.lgkm-en h2{font-size:22px;line-height:1.3;margin:0 0 6px;color:var(--en-ink)}
/* Theme Astra đặt ".entry-content p{margin-bottom:1.6em}" (0,1,1). Lề chung dùng "body .lgkm-en p" (0,1,2) để thắng theme;
   lề riêng từng dòng dùng ".lgkm-en .lớp" (0,2,0) để thắng lề chung. */
body .lgkm-en p{margin:6px 0 12px}
.lgkm-en a{color:var(--en-accent);text-underline-offset:3px}
.lgkm-en :is(button,a,input,summary):focus-visible{outline:3px solid #b45309;outline-offset:2px}
.lgkm-en-sr{position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0}
.lgkm-en .lgkm-en-kicker{margin:0 0 8px;font-size:14px;font-weight:700;letter-spacing:.01em;color:var(--en-accent)}
.lgkm-en .lgkm-en-hint{margin:0 0 12px;font-size:15px;color:var(--en-muted)}
.lgkm-en-section{margin-top:32px;scroll-margin-top:72px}
.lgkm-en .lgkm-en-note{margin:16px 0;padding:12px 14px;border-radius:12px;background:#fff7ed;color:#7c2d12;font-size:15px}

/* Thanh tiến độ dùng chung */
.lgkm-en-meter{height:6px;margin:10px 0 6px;background:#d6e7e4;border-radius:99px;overflow:hidden}
.lgkm-en-meter span{display:block;width:0;height:100%;background:var(--en-accent);border-radius:99px;transition:width .3s ease}
.lgkm-en .lgkm-en-progress-text{margin:0 0 12px;font-size:15px;color:var(--en-muted)}

/* Nút */
.lgkm-en-primary{display:flex;align-items:center;justify-content:center;min-height:52px;padding:12px 20px;border-radius:12px;background:var(--en-accent);color:#fff!important;font-weight:700;text-align:center;text-decoration:none!important}
.lgkm-en-primary:hover{background:var(--en-accent-ink)}
.lgkm-en-secondary{min-height:48px;padding:10px 14px;border:1.5px solid var(--en-line);border-radius:12px;background:#fff;color:var(--en-ink);font:inherit;font-size:16px;font-weight:600;cursor:pointer}
.lgkm-en-text-button{min-height:48px;padding:12px 8px;border:0;background:none;color:var(--en-muted);font:inherit;font-size:15px;text-decoration:underline;text-underline-offset:3px;cursor:pointer}

/* Trang chính */
.lgkm-en-hero{padding:18px 16px;border-radius:16px;background:var(--en-soft)}
.lgkm-en-features{display:grid;gap:6px;margin:4px 0 14px!important;padding:0!important;list-style:none}
.lgkm-en-features li{position:relative;margin:0;padding-left:26px;font-size:16px}
.lgkm-en-features li::before{content:"";position:absolute;left:2px;top:.45em;width:12px;height:7px;border-left:2.5px solid var(--en-accent);border-bottom:2.5px solid var(--en-accent);transform:rotate(-45deg)}
.lgkm-en-hub > h2{margin-top:28px;margin-bottom:12px}
.lgkm-en-lessons{display:grid;gap:10px;margin:0!important;padding:0!important;list-style:none}
.lgkm-en-lessons li{margin:0}
.lgkm-en-lessons a{display:flex;align-items:center;gap:12px;height:100%;min-height:68px;padding:12px 14px;border:1px solid var(--en-line);border-radius:14px;background:#fff;color:var(--en-ink);text-decoration:none}
.lgkm-en-lessons a:hover{border-color:var(--en-accent)}
.lgkm-en-num{display:flex;flex:0 0 38px;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:var(--en-soft);color:var(--en-accent);font-weight:700}
.lgkm-en-lesson-body{display:flex;flex:1;flex-direction:column;gap:2px}
.lgkm-en-lesson-body strong{font-size:17px;line-height:1.35}
.lgkm-en-example{overflow:hidden;color:var(--en-muted);font-size:14px;white-space:nowrap;text-overflow:ellipsis}
.lgkm-en-done{flex:0 0 auto;color:var(--en-accent);font-size:13px;font-weight:700;white-space:nowrap}
.lgkm-en-done:empty{display:none}
.lgkm-en-lessons a.is-done .lgkm-en-num{background:var(--en-accent);color:#fff}
.lgkm-en .lgkm-en-reset-row{margin:12px 0 0;text-align:center}

/* Trang bài */
.lgkm-en-head{margin-bottom:4px}
.lgkm-en-jump{display:flex;gap:8px;margin:8px 0 0;padding:4px 0 8px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.lgkm-en-jump::-webkit-scrollbar{display:none}
.lgkm-en-jump a{display:inline-flex;flex:0 0 auto;align-items:center;min-height:48px;padding:8px 16px;border:1px solid var(--en-line);border-radius:99px;background:#fff;color:var(--en-ink);font-size:15px;text-decoration:none}
.lgkm-en-phrases{margin:0!important;padding:0!important;border-top:1px solid var(--en-line);list-style:none}
.lgkm-en-phrases li{display:grid;gap:8px;margin:0;padding:14px 0;border-bottom:1px solid var(--en-line);scroll-margin-top:72px}
.lgkm-en .lgkm-en-phrase-en{margin:0;font-size:18px;font-weight:600;line-height:1.4}
.lgkm-en .lgkm-en-phrase-vi{margin:2px 0 0;color:var(--en-muted);font-size:16px;line-height:1.45}
.lgkm-en-audio{display:flex;flex-wrap:wrap;gap:8px}
/* Từ vựng ngắn: chữ bên trái, nút bên phải ngay trên điện thoại để danh sách 60 từ không quá dài */
.lgkm-en-phrases.is-terms li{grid-template-columns:1fr auto;align-items:center;gap:12px;padding:12px 0}
.lgkm-en .lgkm-en-phrases.is-terms .lgkm-en-phrase-en{font-size:17px}
.lgkm-en .lgkm-en-phrases.is-terms .lgkm-en-phrase-vi{font-size:15px}
.lgkm-en-phrases.is-terms .lgkm-en-audio{flex-wrap:nowrap;gap:6px}
.lgkm-en-phrases.is-terms .lgkm-en-play{min-width:0;padding:10px 12px}
.lgkm-en-play{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-width:96px;min-height:48px;padding:10px 18px;border:1.5px solid var(--en-accent);border-radius:99px;background:#fff;color:var(--en-accent);font:inherit;font-size:15px;font-weight:600;line-height:1.2;cursor:pointer}
.lgkm-en-icon{display:inline-block;width:0;height:0;border-top:6px solid transparent;border-bottom:6px solid transparent;border-left:10px solid currentColor}
.lgkm-en-play[aria-pressed=true]{background:var(--en-accent);color:#fff}
.lgkm-en-play[aria-pressed=true] .lgkm-en-icon{width:10px;height:10px;border:0;border-radius:2px;background:currentColor}
.lgkm-en-chat{display:flex;flex-direction:column;gap:10px;margin:0!important;padding:0!important;list-style:none}
.lgkm-en-bubble{max-width:88%;margin:0;padding:10px 14px;border-radius:16px}
.lgkm-en-them{align-self:flex-start;background:var(--en-chat);border-bottom-left-radius:4px}
.lgkm-en-me{align-self:flex-end;background:var(--en-soft);border-bottom-right-radius:4px}
.lgkm-en-speaker{display:block;margin-bottom:2px;color:var(--en-muted);font-size:13px;font-weight:700}
.lgkm-en .lgkm-en-bubble p{margin:0}
.lgkm-en-bubble p[lang]{font-weight:600;line-height:1.45}
.lgkm-en .lgkm-en-bubble .lgkm-en-bubble-vi{margin-top:4px;color:var(--en-muted);font-size:15px}
.lgkm-en .lgkm-en-card-status{margin:0 0 4px;color:var(--en-muted);font-size:15px;text-align:center}
.lgkm-en-card{margin:8px 0 12px;border:1px solid var(--en-line);border-radius:16px;background:#fff;box-shadow:0 1px 3px rgba(23,44,59,.08)}
.lgkm-en-card summary{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;min-height:160px;padding:20px 18px;list-style:none;font-size:20px;font-weight:700;line-height:1.35;text-align:center;cursor:pointer}
.lgkm-en-card summary::-webkit-details-marker{display:none}
.lgkm-en-card summary small{color:var(--en-muted);font-size:14px;font-weight:500}
.lgkm-en-card[open] summary{min-height:0;padding-bottom:8px}
.lgkm-en-card[open] summary small{display:none}
.lgkm-en .lgkm-en-card > p{margin:0;padding:0 18px 22px;color:var(--en-accent-ink);font-size:18px;text-align:center}
.lgkm-en-controls{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:4px 0 0}
.lgkm-en fieldset{min-inline-size:0;margin:16px 0;padding:14px;border:1px solid var(--en-line);border-radius:14px}
.lgkm-en legend{float:left;width:100%;margin:0 0 6px;padding:0;font-size:17px;font-weight:700;line-height:1.4}
.lgkm-en legend + *{clear:both}
.lgkm-en fieldset label{display:flex;align-items:flex-start;gap:12px;min-height:48px;margin:8px 0;padding:12px;border:1px solid var(--en-line);border-radius:10px;background:#fff;font-weight:400;cursor:pointer}
.lgkm-en fieldset label:has(input:checked){border-color:var(--en-accent);background:var(--en-soft)}
.lgkm-en fieldset input{flex:0 0 22px;width:22px;height:22px;margin:2px 0;accent-color:var(--en-accent)}
.lgkm-en .lgkm-en-feedback{margin:8px 0 0;font-weight:600}
.lgkm-en-feedback:empty{display:none}
.lgkm-en [data-result=correct]{color:#0f5e59}
.lgkm-en [data-result=wrong]{color:#9a3412}
.lgkm-en [data-en-solution] summary{min-height:48px;padding:12px 0;color:var(--en-accent);font-weight:600;cursor:pointer}
.lgkm-en-quiz-status{font-weight:600}
.lgkm-en-quiz-status:empty{display:none}
.lgkm-en-complete{width:100%;min-height:52px;padding:12px 20px;border:0;border-radius:12px;background:var(--en-accent);color:#fff;font:inherit;font-weight:700;cursor:pointer}
.lgkm-en-complete:disabled{background:#e3eaed;color:#5b6b78;cursor:default}
.lgkm-en .lgkm-en-complete + .lgkm-en-progress-text{margin-top:10px;text-align:center}
.lgkm-en .lgkm-en-tips{margin:0 0 12px;padding-left:20px}
.lgkm-en-tips li{margin:0 0 10px}
.lgkm-en-footnote{color:var(--en-muted);font-size:14px}
.lgkm-en-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:28px 0 0}
.lgkm-en-nav a{display:flex;align-items:center;justify-content:center;min-height:48px;padding:10px 12px;border:1.5px solid var(--en-line);border-radius:12px;background:#fff;color:var(--en-ink);font-weight:600;text-align:center;text-decoration:none}
.lgkm-en-nav a{grid-column:1/-1}
.lgkm-en-nav.is-pair .lgkm-en-nav-prev{grid-column:1}
.lgkm-en-nav.is-pair .lgkm-en-nav-next{grid-column:2}
.lgkm-en-nav-all{border-color:transparent!important;background:none!important;color:var(--en-accent)!important;text-decoration:underline!important}
.lgkm-en-cta{margin:24px 0 0;padding:18px 16px;border-radius:16px;background:var(--en-soft)}
.lgkm-en-cta p{font-size:16px}
.lgkm-en-cta-link{display:flex;align-items:center;justify-content:center;min-height:48px;margin-top:8px;padding:8px 12px;font-weight:600;text-align:center}

/* Màn hình rộng hơn: nút nghe đứng cạnh câu, danh sách bài 2 cột */
@media (min-width:640px){
  .lgkm-en-phrases li{grid-template-columns:1fr auto;align-items:center;gap:16px}
  .lgkm-en-audio{flex-wrap:nowrap}
  .lgkm-en-hero{padding:24px}
  .lgkm-en-jump{flex-wrap:wrap}
}
@media (min-width:760px){
  .lgkm-en-lessons{grid-template-columns:1fr 1fr}
}
@media (prefers-reduced-motion:reduce){.lgkm-en *{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

/* Chặn style theme trên site thật (Astra 4.14: ".ast-single-post .entry-content a" gạch chân mọi link;
   "button:hover, button:focus" tô nền màu theme chữ trắng). Giữ màu của khóa học ở mọi trạng thái. */
.lgkm-en .lgkm-en-lessons a,.lgkm-en .lgkm-en-jump a,.lgkm-en .lgkm-en-nav a:not(.lgkm-en-nav-all){text-decoration:none!important}
.lgkm-en .lgkm-en-lessons a:is(:hover,:focus),.lgkm-en .lgkm-en-jump a:is(:hover,:focus),.lgkm-en .lgkm-en-nav a:not(.lgkm-en-nav-all):is(:hover,:focus){color:var(--en-ink)}
.lgkm-en .lgkm-en-play:is(:hover,:focus){background:#fff;color:var(--en-accent);border-color:var(--en-accent)}
/* Màu hover chỉ cho thiết bị có chuột; trên cảm ứng :hover bị giữ lại sau khi chạm */
@media (hover:hover){.lgkm-en .lgkm-en-play:hover{background:var(--en-soft)}}
.lgkm-en .lgkm-en-play[aria-pressed=true]{background:var(--en-accent);color:#fff;border-color:var(--en-accent)}
.lgkm-en .lgkm-en-secondary:is(:hover,:focus){background:#fff;color:var(--en-ink);border-color:var(--en-accent)}
.lgkm-en .lgkm-en-text-button:is(:hover,:focus){background:none;color:var(--en-ink)}
.lgkm-en .lgkm-en-complete:is(:hover,:focus){background:var(--en-accent-ink);color:#fff}
.lgkm-en .lgkm-en-complete:disabled{background:#e3eaed;color:#5b6b78}
.lgkm-en .lgkm-en-primary:is(:hover,:focus){background:var(--en-accent-ink)}