/* Урок из блоков: общий вид для экрана преподавателя и страницы ученика */
.lr-block { background: var(--card, #fffdf9); border: 1px solid var(--line, #e8ddce); border-radius: 18px; padding: 20px 22px; margin: 0 0 14px; transition: box-shadow .2s, border-color .2s; }
.lr-block.focus { border-color: var(--accent, #8d644f); box-shadow: 0 0 0 3px rgba(141,100,79,.15); }
.lr-block h3 { margin: 0 0 12px; font-size: 17px; }
.lr-block p { margin: 0 0 10px; line-height: 1.55; }
.lr-note { background: #fbf4e8; border-style: dashed; }
.lr-note h3::before { content: "🔒 "; }
.lr-ins { color: var(--muted, #938375); font-size: 14px; }
.lr-line { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; padding: 9px 0; border-top: 1px solid var(--line-2, #ece3d8); line-height: 1.9; font-size: 16px; }
.lr-line:first-of-type { border-top: 0; }
.lr-in { min-width: 90px; width: 9em; max-width: 100%; border: 0; border-bottom: 2px solid var(--accent, #8d644f); background: #fbf7f1; padding: 3px 8px; font: inherit; border-radius: 6px 6px 0 0; color: var(--ink, #3a3040); }
.lr-in:focus { outline: 2px solid rgba(141,100,79,.35); }
.lr-in:disabled, .lr-area:disabled, .lr-sel:disabled { opacity: .75; }
.lr-area { width: 100%; box-sizing: border-box; border: 1px solid var(--line, #e8ddce); border-radius: 12px; padding: 10px 12px; font: inherit; background: #fff; }
.lr-areawrap { display: grid; gap: 6px; margin: 6px 0 4px; }
.lr-mark { display: inline-flex; align-items: center; gap: 4px; margin-left: auto; font-size: 13px; }
.lr-st { min-width: 18px; font-weight: 700; color: var(--muted, #938375); font-size: 13px; }
.lr-st.ok { color: var(--ok-ink, #4f6b45); }
.lr-st.bad { color: var(--bad-ink, #94473a); }
.lr-mk { border: 1px solid var(--line, #e8ddce); background: #fff; border-radius: 8px; width: 28px; height: 26px; cursor: pointer; font-size: 13px; color: var(--ink, #3a3040); }
.lr-mk:hover { border-color: var(--accent, #8d644f); }
.lr-key { color: var(--muted, #938375); font-size: 12px; margin-left: 6px; }
.lr-correct { color: var(--ok-ink, #4f6b45); font-size: 14px; }
.lr-correct::before { content: "→ "; }
.lr-q { padding: 8px 0; border-top: 1px solid var(--line-2, #ece3d8); }
.lr-q:first-of-type { border-top: 0; }
.lr-opts { display: flex; flex-wrap: wrap; gap: 8px; margin: 4px 0; }
.lr-opt { display: inline-flex; gap: 6px; align-items: center; border: 1px solid var(--line, #e8ddce); border-radius: 10px; padding: 6px 10px; background: #fff; cursor: pointer; }
.lr-match { display: grid; gap: 8px; }
.lr-pair { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.lr-pair > span:first-child { min-width: 160px; font-weight: 600; }
.lr-sel { border: 1px solid var(--line, #e8ddce); border-radius: 10px; padding: 6px 8px; font: inherit; background: #fff; }
.lr-vocab { border-collapse: collapse; width: 100%; }
.lr-vocab td { padding: 6px 8px; border-top: 1px solid var(--line-2, #ece3d8); }
.lr-vocab td:first-child { font-weight: 600; width: 45%; }
/* страница ученика */
.lesson-page { max-width: 820px; margin: 0 auto; padding: 24px 16px 60px; }
.lesson-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.lesson-head h1 { margin: 4px 0 0; font-size: 26px; }
.lesson-live { font-size: 13px; color: var(--ok-ink, #4f6b45); }
.lesson-live::before { content: "● "; }
.lesson-saved { position: fixed; right: 16px; bottom: 16px; background: var(--ink, #3a3040); color: #fff; padding: 6px 12px; border-radius: 10px; font-size: 13px; opacity: 0; transition: opacity .2s; }
.lesson-saved.on { opacity: .9; }
@media (max-width: 560px) { .lr-block { padding: 16px; } .lr-pair > span:first-child { min-width: 0; width: 100%; } }
/* раздел «Уроки» в кабинете */
.cl-list { display: grid; gap: 10px; margin-top: 14px; }
.cl-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; cursor: pointer; padding: 16px 20px; }
.cl-row:hover { border-color: var(--accent); }
.cl-row h3 { margin: 0 0 4px; font-size: 16px; }
.cl-row .caption { margin: 0; }
.cl-head { align-items: flex-end; }
.cl-head .btn.ghost:first-child { margin-bottom: 8px; padding: 4px 10px; }
.cl-title { display: block; width: 100%; min-width: 260px; font-size: 26px; font-weight: 750; border: 0; border-bottom: 1px dashed var(--line); background: transparent; padding: 4px 0; color: var(--ink); font-family: inherit; }
.cl-title:focus { outline: none; border-bottom-color: var(--accent); }
.cl-blocks { display: grid; gap: 12px; margin-top: 12px; }
.cl-be { padding: 16px 18px; display: grid; gap: 8px; }
.cl-be-head { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.cl-be-head input { flex: 1; min-width: 160px; font-weight: 650; }
.cl-be textarea, .cl-be input { width: 100%; box-sizing: border-box; }
.cl-be-head input { width: auto; }
.cl-be .caption { margin: 0; }
.cl-be-note { background: #fbf4e8; border-style: dashed; }
.cl-add { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; padding: 6px 0; }
.cl-foot { margin-top: 18px; }
.cl-live { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 18px; align-items: start; margin-top: 10px; }
.cl-side { position: sticky; top: 16px; display: grid; gap: 12px; }
.cl-side .card { padding: 16px; }
.cl-side h3 { margin: 0 0 8px; font-size: 15px; }
.cl-side textarea { width: 100%; box-sizing: border-box; }
.cl-err-add { display: grid; gap: 6px; margin-bottom: 8px; }
.cl-errs .att { font-size: 14px; }
.cl-timer { font-weight: 700; color: var(--accent); padding: 0 6px; }
.cl-prog { margin: 6px 0 8px; padding-left: 22px; line-height: 1.7; }
.cl-prog li.st-done { color: var(--ok-ink); }
.cl-prog li.st-repeat { color: var(--warn-ink); }
.cl-sprog { border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; margin: 10px 0; }
.cl-sprog h3 { margin: 0; font-size: 15px; }
.pre { white-space: pre-wrap; }
@media (max-width: 900px) { .cl-live { grid-template-columns: 1fr; } .cl-side { position: static; } }
.cl-head > div:first-child { flex: 1; min-width: 0; }
.cl-add .chip { border: 1px solid var(--line); background: var(--card); border-radius: 999px; padding: 5px 12px; font: inherit; font-size: 13px; color: var(--accent); cursor: pointer; }
.cl-add .chip:hover { border-color: var(--accent); }
.cl-how { margin: 6px 0 16px; }
.cl-how h2 { margin: 0; font-size: 18px; }
.cl-steps { list-style: none; padding: 0; margin: 12px 0 14px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.cl-steps li { display: flex; gap: 10px; align-items: flex-start; }
.cl-steps p { margin: 4px 0 0; font-size: 14px; line-height: 1.5; color: var(--muted); }
.cl-num { flex: none; width: 28px; height: 28px; border-radius: 50%; background: var(--accent); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 14px; }
@media (max-width: 1100px) { .cl-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .cl-steps { grid-template-columns: 1fr; } }
.cl-cat-group { margin: 14px 0 6px; }
.cl-cat-group h3 { margin: 0; font-size: 16px; }
.cl-cat { border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; margin: 8px 0; }
.cl-cat summary { display: flex; align-items: center; gap: 8px; cursor: pointer; list-style: none; }
.cl-cat summary::-webkit-details-marker { display: none; }
.cl-cat summary .btn, .cl-cat summary .pill { margin-left: auto; }
.cl-botmark { color: var(--muted, #8a7a70); font-size: 12px; }
.cl-prog li.st-bot { color: var(--ok-ink); }
.cl-on { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; margin: 4px 0 10px; }
.cl-prog-click .cl-topic { text-align: left; color: inherit; text-decoration: none; }
.cl-prog-click .cl-topic:hover { text-decoration: underline; color: var(--accent, #8b5e4a); }
.row-prog { display: block; color: var(--accent-ink, #7a4f3c); margin-top: 2px; }

/* проверка после урока */
.rv { display: grid; gap: 14px; margin-bottom: 18px; }
.rv-sec h4 { margin: 0 0 4px; font-size: 14px; }
.rv-row { display: grid; grid-template-columns: 1fr minmax(160px, 38%); gap: 10px; align-items: center; padding: 7px 0; border-top: 1px solid var(--line, #eee4d8); }
.rv-row .check { align-items: flex-start; }
.rv-row .check input { margin-top: 3px; }
.rv-saved { opacity: .6; grid-template-columns: 1fr; }
.rv-topic { font-size: 12px; padding: 6px 8px; }
.rv-open { border: 1px solid var(--line, #eee4d8); border-radius: 12px; padding: 12px 14px; margin-top: 8px; display: grid; gap: 8px; }
.rv-open p { margin: 0; }
.rv-open-head { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.rv-answer { background: #faf6ef; border-radius: 8px; padding: 8px 10px; white-space: pre-wrap; }
.rv-ai { display: grid; gap: 8px; }
.rv-ai .pill { margin-right: 6px; }
.rv-ai h4 { margin: 4px 0 0; font-size: 13px; }
@media (max-width: 640px) { .rv-row { grid-template-columns: 1fr; } }
.lerr-ex { display: block; }