/* deu-aussprache.css — nhập môn phát âm (/pronunciation, public/deu/pronunciation/*). Giao diện 13/10/2026: cùng khuôn các trang Luyện thi
   (dải đậm + thẻ chồng mép dải, Inter vừa phải, thanh tiến độ). Chỉ token màu (tự lật nền tối). */
.da { --da-ok: var(--color-gender-das); --da-ok-soft: var(--color-gender-das-soft); --da-ok-fg: var(--color-gender-das-fg);
      --da-no-soft: var(--color-gender-die-soft); --da-no-fg: var(--color-gender-die-fg); --da-link: var(--lv-brand-fg); }
html[data-user-theme="dark"] .da { --da-link: color-mix(in srgb, var(--color-primary) 32%, var(--color-on-dark)); }
@media (prefers-color-scheme: dark) { html[data-user-theme="system"] .da { --da-link: color-mix(in srgb, var(--color-primary) 32%, var(--color-on-dark)); } }
.da .lv-card { padding: 20px 22px; }

/* ── Dải đầu ──────────────────────────────────────────────────────────────────────────────────────── */
.da-band { --lv-band-pb: 104px; }
.da-band--lesson { --lv-band-pb: 96px; }
.da-hero { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.da-hero__l { flex: 1 1 460px; min-width: 0; }
.da-title { font-size: clamp(26px, 3vw, 38px); font-weight: 700; letter-spacing: -.025em; line-height: 1.15; }
.da-title span { color: var(--color-brand-gold); }
.da-title small { display: block; margin-top: 6px; font-size: .5em; font-weight: 500; letter-spacing: 0; opacity: .8; }
.da-kicker { margin: 0 0 8px !important; font-size: 13px; color: var(--lv-on-2); }
.da-kicker a { color: var(--lv-on); text-decoration: underline; text-underline-offset: 3px; }
.da-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.da-chips .lv-chip-d { gap: 6px; }
.da-chip--ok { color: var(--lv-on); background: color-mix(in srgb, var(--da-ok) 45%, transparent); }
.da-progress { flex: none; width: min(290px, 100%); display: flex; flex-direction: column; gap: 8px; padding: 18px 20px; color: var(--lv-on); }
.da-progress small { font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--color-brand-gold); }
.da-progress b { font-size: 34px; font-weight: 700; letter-spacing: -.02em; line-height: 1; }
.da-progress b span { font-size: 15px; font-weight: 500; opacity: .75; margin-left: 4px; }
.da-progress__bar { display: block; height: 6px; border-radius: 999px; background: color-mix(in srgb, var(--color-on-dark) 16%, transparent); }
.da-progress__bar i { display: block; height: 100%; border-radius: inherit; background: var(--color-brand-gold); }
.da-progress .lv-btn { margin-top: 4px; }
.da-progress__ok { display: inline-flex; align-items: center; gap: 6px; font-size: 13.5px; font-weight: 600; }

/* ── Danh sách 12 bài ─────────────────────────────────────────────────────────────────────────────── */
.da-body { position: relative; z-index: 1; margin-top: -76px; }
.da-grid { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.da .lv-card.da-card { height: 100%; display: flex; flex-direction: column; gap: 6px; padding: 16px 18px; text-decoration: none; color: var(--lv-text);
    transition: border-color .15s, transform .15s; }
.da-card:hover { border-color: color-mix(in srgb, var(--color-primary) 35%, var(--lv-hair)); transform: translateY(-1px); }
.da-card__top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 4px; }
.da-card__no { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 10px; font-size: 14px; font-weight: 700; background: var(--lv-sunken); color: var(--lv-ink); }
.da-card.is-done .da-card__no { background: var(--da-ok); color: var(--color-on-dark); }
.da-card.is-next .da-card__no { background: var(--color-primary); color: var(--color-on-dark); }
.da-card__de { font-size: 12.5px; color: var(--lv-muted); text-align: right; }
.da-card b { font-size: 15.5px; font-weight: 600; color: var(--lv-ink); }
.da-card small { font-size: 13.5px; line-height: 1.5; color: var(--lv-muted); }
.da-card__st { margin-top: auto; padding-top: 8px; font-size: 13px; font-weight: 500; color: var(--lv-muted); }
.da-card.is-done .da-card__st { color: var(--da-ok-fg); }
.da-card.is-next .da-card__st { color: var(--da-link); font-weight: 600; }
.da-card.is-next { border-color: color-mix(in srgb, var(--color-primary) 40%, var(--lv-hair)); }

/* ── Bài học: hai cột ─────────────────────────────────────────────────────────────────────────────── */
.da-cols { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: 18px; align-items: start; }
.da-col { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.da-col--side { position: sticky; top: calc(var(--nav-h, 64px) + 14px); max-height: calc(100vh - var(--nav-h, 64px) - 28px); overflow-y: auto; scrollbar-width: thin; border-radius: var(--lv-r, 16px); }
.da-col h2 { margin: 0 0 4px !important; font-size: 16.5px; font-weight: 700; color: var(--lv-ink); }
.da-explain h2 { margin-bottom: 10px !important; }
.da-explain p, .da-explain li { font-size: 14.5px; line-height: 1.65; color: var(--lv-text); }
.da-explain p { margin: 0 0 10px !important; }
.da-explain ul { margin: 0 0 10px; padding-left: 20px; }
.da-explain b, .da-explain strong { color: var(--lv-ink); }
.da-toc { display: flex; flex-direction: column; gap: 2px; padding: 14px 16px !important; }
.da-toc small { margin-bottom: 6px; font-size: 11.5px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--lv-muted); }
.da-toc a { padding: 6px 8px; border-radius: 8px; font-size: 13.5px; color: var(--lv-text); text-decoration: none; }
.da-toc a:hover { background: var(--lv-sunken); color: var(--lv-ink); }

.da-group__h { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.da-group__h .lv-btn { flex: none; gap: 6px; }
.da-playall.is-on { background: var(--lv-wash); border-color: var(--color-primary); color: var(--lv-ink); }
.da-tip { margin: 0 !important; color: var(--lv-muted); font-size: 13.5px; line-height: 1.5; }
.da-words { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.da-sents { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.da-w, .da-s { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 4px 12px; padding: 10px 12px;
    border: 1px solid var(--lv-hair); border-radius: 14px; background: var(--lv-surface); }
.da-w__say { width: 40px; height: 40px; display: grid; place-items: center; border: 0; border-radius: 50%; cursor: pointer;
    background: var(--lv-wash); color: var(--da-link); transition: background .15s, color .15s; }
.da-w__say:hover, .da-w__say.is-playing { background: var(--color-primary); color: var(--color-on-dark); }
.da-w__m { display: flex; flex-direction: column; min-width: 0; line-height: 1.35; }
.da-w__m b { font-size: 16.5px; font-weight: 600; color: var(--lv-ink); }
.da-w__vi { font-size: 13px; color: var(--lv-muted); }
.da-w__vi i { font-style: normal; color: var(--lv-text); }
.da-mic { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--lv-hair);
    background: var(--lv-surface); color: var(--lv-ink); cursor: pointer; }
.da-mic:hover { border-color: var(--color-primary); color: var(--da-link); }
.da-mic.is-rec { background: var(--color-danger); border-color: var(--color-danger); color: var(--color-on-dark); animation: da-pulse 1.2s infinite; }
@keyframes da-pulse { 50% { box-shadow: 0 0 0 6px color-mix(in srgb, var(--color-danger) 20%, transparent); } }
.da-sc { grid-column: 1 / -1; font-size: 13px; color: var(--lv-muted); }
.da-sc b { margin-right: 4px; }
.da-sc.is-good b { color: var(--da-ok-fg); }
.da-sc.is-mid b { color: var(--color-accent-deep); }
.da-sc.is-low b { color: var(--da-no-fg); }

/* Nghe phân biệt */
.da-quiz__stage { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; }
.da-quiz__stage > .lv-btn { gap: 8px; }
.da-quiz__n { margin: 0 !important; font-size: 14px; font-weight: 600; color: var(--lv-ink); }
.da-quiz__opts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; width: 100%; }
.da-opt { display: flex; flex-direction: column; gap: 4px; padding: 16px; border: 1.5px solid var(--lv-hair); border-radius: 14px;
    background: var(--lv-surface); font: inherit; text-align: left; cursor: pointer; color: var(--lv-text); transition: border-color .12s, background .12s; }
.da-opt b { font-size: 20px; font-weight: 600; color: var(--lv-ink); }
.da-opt small { color: var(--lv-muted); font-size: 13px; }
.da-opt:hover:not(:disabled) { border-color: color-mix(in srgb, var(--color-primary) 40%, var(--lv-hair)); }
.da-opt.is-right { border-color: var(--da-ok); background: var(--da-ok-soft); }
.da-opt.is-wrong { border-color: var(--color-gender-die); background: var(--da-no-soft); }
.da-quiz__fb { margin: 0 !important; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-weight: 600; color: var(--lv-ink); }
.da-quiz__focus { font-weight: 400; color: var(--lv-muted); font-size: 13.5px; }
.da-quiz__res { margin: 0 !important; font-size: 18px; font-weight: 700; color: var(--lv-ink); }

/* Hoàn thành */
.da-end { display: flex; flex-direction: column; align-items: center; gap: 12px; text-align: center; padding: 26px 22px !important; }
.da-end__ic { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 50%; background: var(--lv-sunken); color: var(--lv-muted); }
.da-end__ic.is-done { background: var(--da-ok-soft); color: var(--da-ok-fg); }
.da-end p { margin: 0 !important; max-width: 46ch; font-size: 14.5px; color: var(--lv-text); }

/* Bài trước / Bài tiếp */
.da-pager { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 22px; }
.da .lv-card.da-pager__a { display: flex; align-items: center; gap: 12px; padding: 14px 16px; text-decoration: none; color: var(--lv-muted); transition: border-color .15s; }
.da-pager__a:hover { border-color: color-mix(in srgb, var(--color-primary) 35%, var(--lv-hair)); }
.da-pager__a span { display: flex; flex-direction: column; min-width: 0; }
.da-pager__a small { font-size: 12px; color: var(--lv-muted); }
.da-pager__a b { font-size: 14.5px; font-weight: 600; color: var(--lv-ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.da-pager__a--next { grid-column: 2; justify-content: flex-end; text-align: right; }

@media (max-width: 1100px) { .da-words { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 960px) {
  .da-cols { grid-template-columns: 1fr; }
  .da-col--side { position: static; max-height: none; overflow: visible; }
  .da-toc { display: none; }
}
@media (max-width: 720px) {
  .da-body { margin-top: -64px; }
  .da-progress { width: 100%; }
}
@media (max-width: 560px) {
  .da .lv-card { padding: 16px; }
  .da-group__h { flex-direction: column; }
  .da-quiz__opts { grid-template-columns: minmax(0, 1fr); }
  .da-pager { grid-template-columns: 1fr; }
  .da-pager__a--next { grid-column: 1; }
}