/* public/assets/css/deu-exam-list.css — DANH SÁCH ĐỀ thi thử NAVS Deutsch (/mock-exams, mock-exams/index.php). 13/10/2026.
   Cùng khuôn trang kết quả (deu-exam-result.css): dải đậm + thẻ trắng chồng mép dải, tab cấp độ, thẻ đề có trạng thái.
   Chỉ token (design-tokens / site-deu / learn-shell) ⇒ tự đúng nền tối. Chữ Inter của khung học, độ đậm vừa phải. */

.dxl { --dxl-ok: var(--color-gender-das); --dxl-mid: var(--color-brand-gold); --dxl-link: var(--lv-brand-fg); }
html[data-user-theme="dark"] .dxl { --dxl-link: color-mix(in srgb, var(--color-primary) 32%, var(--color-on-dark)); }
@media (prefers-color-scheme: dark) { html[data-user-theme="system"] .dxl { --dxl-link: color-mix(in srgb, var(--color-primary) 32%, var(--color-on-dark)); } }
.dxl svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }

/* ── Dải đầu ──────────────────────────────────────────────────────────────────────────────────────── */
.dxl-band { --lv-band-pb: 104px; }
.dxl-hero { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.dxl-hero__l { flex: 1 1 460px; min-width: 0; }
.dxl-title { font-size: clamp(28px, 3.2vw, 40px); font-weight: 700; letter-spacing: -.025em; line-height: 1.12; }
.dxl-title span { color: var(--color-brand-gold); }
.dxl-stats { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.dxl-resume { flex: none; width: min(300px, 100%); display: flex; flex-direction: column; gap: 6px; padding: 18px 20px; color: var(--lv-on); }
.dxl-resume small { font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--color-brand-gold); }
.dxl-resume b { font-size: 18px; font-weight: 700; }
.dxl-resume > span { font-size: 13.5px; color: var(--lv-on-2); }
.dxl-resume .lv-btn { margin-top: 8px; }

/* ── Tab cấp độ (thẻ chồng mép dải) ───────────────────────────────────────────────────────────────── */
.dxl-body { position: relative; z-index: 1; margin-top: -76px; }
.dxl-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; padding: 6px; margin-bottom: 20px; }
.dxl-tab { display: grid; grid-template-columns: auto minmax(0, 1fr); grid-template-rows: auto auto; column-gap: 12px; align-items: center; text-align: left;
    padding: 12px 14px; border: 0; border-radius: 12px; cursor: pointer; background: transparent; color: var(--lv-text); font: inherit; transition: background .15s; }
.dxl-tab b { grid-row: 1 / 3; width: 44px; height: 44px; display: grid; place-items: center; border-radius: 12px; font-size: 16px; font-weight: 700;
    background: var(--lv-sunken); color: var(--lv-ink); }
.dxl-tab span { font-size: 14px; font-weight: 600; color: var(--lv-ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dxl-tab small { font-size: 12.5px; color: var(--lv-muted); }
.dxl-tab:hover { background: var(--lv-sunken); }
.dxl-tab.is-on { background: var(--lv-wash); }
.dxl-tab.is-on b { background: var(--color-primary); color: var(--color-on-dark); }

.dxl-panel { display: none; }
.dxl-panel.is-on { display: block; animation: dxl-in .2s ease; }
@keyframes dxl-in { from { opacity: 0; transform: translateY(4px); } }

/* ── Thẻ đề ───────────────────────────────────────────────────────────────────────────────────────── */
.dxl-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; margin-bottom: 20px; }
.dxl-card { position: relative; display: flex; flex-direction: column; gap: 10px; padding: 18px 18px 16px; overflow: hidden; }
.dxl-card::before { content: ''; position: absolute; inset: 0 0 auto; height: 3px; background: transparent; }
.dxl-card.is-open::before { background: var(--dxl-mid); }
.dxl-card.is-done::before { background: var(--color-primary); }
.dxl-card__tags { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.dxl-lvl { display: inline-grid; place-items: center; height: 24px; padding: 0 9px; border-radius: 7px; font-size: 12px; font-weight: 700;
    background: var(--lv-sunken); color: var(--lv-ink); }
.dxl-chip--open { background: color-mix(in srgb, var(--dxl-mid) 22%, var(--lv-surface)); color: var(--lv-ink); }
.dxl-chip--lock { gap: 4px; }
.dxl-chip--lock svg { width: 13px; height: 13px; }
.dxl-card h3 { font-size: 18px; font-weight: 700; letter-spacing: -.01em; color: var(--lv-ink); }
.dxl-card__meta { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--lv-muted); }
.dxl-card__meta svg { width: 15px; height: 15px; }
.dxl-card__res { min-height: 64px; display: flex; flex-direction: column; justify-content: center; gap: 6px; padding: 10px 12px; border-radius: 12px; background: var(--lv-sunken); }
.dxl-score { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.dxl-score__n { font-size: 14px; color: var(--lv-muted); }
.dxl-score__n b { font-size: 24px; font-weight: 700; letter-spacing: -.02em; color: var(--lv-ink); }
.dxl-meter { position: relative; display: block; height: 6px; border-radius: 999px; background: var(--lv-surface); }
.dxl-meter i { display: block; height: 100%; border-radius: inherit; background: var(--dxl-mid); }
.dxl-meter.is-ok i { background: var(--dxl-ok); }
.dxl-meter::after { content: ''; position: absolute; left: 60%; top: -2px; bottom: -2px; width: 2px; border-radius: 2px; background: color-mix(in srgb, var(--lv-ink) 35%, transparent); }
.dxl-card__res small { font-size: 12.5px; color: var(--lv-muted); }
.dxl-card__wait, .dxl-card__none { font-size: 13.5px; color: var(--lv-muted); }
.dxl-card__act { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; padding-top: 4px; }
.dxl-link { font-size: 13.5px; font-weight: 600; color: var(--dxl-link); }
.dxl-link:hover { color: var(--lv-brand-deep); }

/* ── Cấu trúc đề ──────────────────────────────────────────────────────────────────────────────────── */
.dxl-fmt { padding: 18px 20px; margin-bottom: 8px; }
.dxl-fmt__h { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.dxl-fmt__h h2 { font-size: 17px; font-weight: 700; color: var(--lv-ink); }
.dxl-fmt__h span { font-size: 13px; color: var(--lv-muted); }
.dxl-fmt__tiles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.dxl-ft { display: flex; gap: 10px; align-items: flex-start; padding: 12px; border-radius: 12px; border: 1px solid var(--lv-hair); }
.dxl-ft__ic { width: 34px; height: 34px; flex: none; display: grid; place-items: center; border-radius: 10px; background: var(--lv-wash); color: var(--dxl-link); }
.dxl-ft b { font-size: 14.5px; font-weight: 600; color: var(--lv-ink); }
.dxl-ft small { font-size: 12.5px; color: var(--lv-muted); }
.dxl-ft span:last-child { display: block; margin-top: 2px; font-size: 12.5px; color: var(--lv-text); }
.dxl-fmt__more { margin-top: 12px; }
.dxl-fmt__more > summary { width: fit-content; cursor: pointer; font-size: 13.5px; font-weight: 600; color: var(--dxl-link); }
.dxl-fmt__more p { margin: 10px 0 0 !important; font-size: 13.5px; line-height: 1.6; color: var(--lv-text); }
.dxl-fmt__more ul { list-style: none; margin: 10px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 20px; }
.dxl-fmt__more li { display: flex; flex-direction: column; gap: 3px; font-size: 13px; color: var(--lv-text); }
.dxl-fmt__more li b { font-size: 13.5px; font-weight: 600; color: var(--lv-ink); }

.dxl-empty { padding: 22px; font-size: 14px; color: var(--lv-muted); }
.dxl-note { margin: 20px 0 0 !important; font-size: 12.5px; color: var(--lv-muted); text-align: center; }

/* ── Màn hẹp ──────────────────────────────────────────────────────────────────────────────────────── */
@media (max-width: 1080px) { .dxl-fmt__tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 720px) {
    .dxl-body { margin-top: -64px; }
    .dxl-resume { width: 100%; }
    .dxl-tabs { gap: 4px; padding: 4px; }
    .dxl-tab { grid-template-columns: 1fr; grid-template-rows: auto; justify-items: center; text-align: center; padding: 10px 6px; row-gap: 4px; }
    .dxl-tab b { grid-row: auto; width: 38px; height: 38px; }
    .dxl-tab span { display: none; }
    .dxl-tab small { font-size: 11.5px; }
    .dxl-fmt__tiles, .dxl-fmt__more ul { grid-template-columns: 1fr; }
}

/* ── Lịch sử thi thử (/mock-exams/history, mock-exams/history.php — Đợt 2 audit 16/10/2026) ───────────────────────────────── */
.dxh-filter { display: flex; flex-wrap: wrap; gap: 6px; padding: 6px; margin-bottom: 16px; }
.dxh-filter button { padding: 8px 14px; border: 0; border-radius: 10px; background: transparent; color: var(--lv-text); font: inherit; font-size: 13.5px; font-weight: 600; cursor: pointer; transition: background .15s; }
.dxh-filter button:hover { background: var(--lv-sunken); }
.dxh-filter button.is-on { background: var(--color-primary); color: var(--color-on-dark); }
.dxh-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.dxh-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(330px, 1.6fr) auto auto; gap: 14px 18px; align-items: center; padding: 14px 18px; }
.dxh-row.is-hidden { display: none; }
.dxh-row__main small { display: block; font-size: 12.5px; color: var(--lv-muted); margin-bottom: 4px; }
.dxh-row__main b { font-size: 15.5px; font-weight: 700; color: var(--lv-ink); }
.dxh-row__main .dxl-lvl { margin-right: 8px; vertical-align: 2px; }
.dxh-skills { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
.dxh-skill { display: flex; flex-direction: column; gap: 2px; min-width: 0; padding: 6px 9px; border-radius: 10px; background: var(--lv-sunken); }
.dxh-skill span { font-size: 11.5px; color: var(--lv-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dxh-skill b { font-size: 13.5px; font-weight: 700; color: var(--lv-ink); }
.dxh-skill.is-pend b { font-size: 12px; font-weight: 600; color: var(--lv-muted); }
.dxh-score { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; min-width: 96px; }
.dxh-score small { font-size: 12px; color: var(--lv-muted); text-align: right; }
.dxh-score__n { font-size: 13px; color: var(--lv-muted); }
.dxh-score__n b { font-size: 22px; font-weight: 700; letter-spacing: -.02em; color: var(--lv-ink); }
.dxh-row__act { display: flex; justify-content: flex-end; }
.dxh-empty { text-align: center; padding: 36px 20px; color: var(--lv-muted); }
.dxh-empty p { font-size: 15px; }
.dxh-empty .lv-btn { margin-top: 14px; }
@media (max-width: 1180px) {
  .dxh-row { grid-template-columns: minmax(0, 1fr) auto; }
  .dxh-skills { grid-column: 1 / -1; }
  .dxh-row__act { grid-column: 1 / -1; justify-content: flex-start; }
}