/* luxembourgish.css — chrome for the Luxembourgish course (clone of ciplecourse.css, teal CivicLearn product palette) + course UI. */
:root{
  --brand:#0d7377; --brand-dark:#0a5c5f; --brand-dim:#e8f4f3; --brand-soft:#dff0ef; --brand-line:#b9dcda;
  --accent:#ed2939; --accent-dim:#fdecee; --flag-red:#ed2939; --flag-blue:#00a1de;
  --navy:#0f172a; --slate:#334155; --muted:#64748b; --border:#e2e8f0;
  --surface:#ffffff; --bg:#f6f8f8;
  --pass:#166534; --pass-bg:#dcfce7;
  --fail:#991b1b; --fail-bg:#fee2e2;
  --amber:#92400e; --amber-bg:#fffbeb; --amber-border:#fde68a;
  --idle-bg:#f1f5f9; --idle-fg:#475569;
  --red:#dc2626;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Plus Jakarta Sans",system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--navy);min-height:100vh;-webkit-font-smoothing:antialiased}

/* Topbar */
.topbar{background:var(--navy);border-bottom:3px solid var(--brand);padding:0 28px;height:54px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:200;gap:12px}
.topbar-left,.topbar-brand{display:flex;align-items:center;gap:12px;min-width:0}
.topbar-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.back-link{color:#94a3b8;text-decoration:none;font-size:0.8rem;display:flex;align-items:center;gap:5px;white-space:nowrap;transition:color .15s}
.back-link:hover{color:#fff}
.topbar-divider{width:1px;height:20px;background:#1e293b}
.topbar-title{font-size:0.9rem;font-weight:700;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-sub,.brand-sub{font-size:0.72rem;color:#94a3b8;white-space:nowrap}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-title{font-size:0.95rem;font-weight:700;color:#fff}
.user-pill{background:#1e293b;border-radius:99px;padding:4px 12px;font-size:0.74rem;color:#94a3b8;max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.signout-link{background:none;border:none;color:#94a3b8;font-size:0.75rem;cursor:pointer;font-family:inherit;text-decoration:none;white-space:nowrap}
.signout-link:hover{color:#fff}

/* Luxembourg flag mark: red / white / light blue */
.topbar-flag{width:24px;height:16px;border-radius:2px;flex-shrink:0;background:linear-gradient(to bottom,var(--flag-red) 0 33.4%,#fff 33.4% 66.7%,var(--flag-blue) 66.7% 100%);border:1px solid rgba(255,255,255,.15)}

/* UI language switch */
.lang-switch{display:inline-flex;background:#1e293b;border-radius:99px;padding:2px;gap:2px}
.lang-pill{border:none;background:transparent;color:#94a3b8;font-family:inherit;font-size:0.68rem;font-weight:700;letter-spacing:.04em;padding:4px 8px;border-radius:99px;cursor:pointer;transition:all .15s}
.lang-pill:hover{color:#fff}
.lang-pill.active{background:var(--brand);color:#fff}

/* Loading */
#loading-overlay{position:fixed;inset:0;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;z-index:9999;transition:opacity .35s}
#loading-overlay.hidden{opacity:0;pointer-events:none}
.loading-spinner{width:32px;height:32px;border-radius:50%;border:3px solid var(--border);border-top-color:var(--brand);animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* Layout */
.exam-wrap{max-width:820px;margin:0 auto;padding:28px 24px 96px}

/* Task card */
.task-card{background:var(--surface);border:1.5px solid var(--border);border-radius:14px;padding:24px;margin-bottom:28px}
.task-header{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.task-num{width:32px;height:32px;border-radius:8px;background:var(--brand-dim);color:var(--brand);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:0.85rem;flex-shrink:0}
.task-title{font-weight:700;font-size:1rem;flex:1}
.task-points{font-size:0.74rem;font-weight:700;color:var(--muted);background:#f1f5f9;border-radius:99px;padding:3px 10px;white-space:nowrap}
.task-instructions{font-size:0.86rem;color:var(--slate);line-height:1.6;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid #f1f5f9;white-space:pre-line}

/* Passage */
.passage{background:#fafbfb;border:1px solid var(--border);border-radius:10px;padding:18px 20px;margin-bottom:20px;font-size:0.92rem;line-height:1.75;white-space:pre-line}
.passage-title{font-weight:700;font-size:1rem;margin-bottom:10px;color:var(--navy)}
.passage-source{font-size:0.74rem;color:var(--muted);margin-top:10px;font-style:italic}

/* Question + options */
.question{margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid #f1f5f9}
.question:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}
.q-prompt{font-weight:600;font-size:0.92rem;margin-bottom:10px;line-height:1.5}
.q-options{display:flex;flex-direction:column;gap:6px}
.q-options.inline{flex-direction:row;flex-wrap:wrap}
.q-option{display:flex;align-items:flex-start;gap:10px;padding:10px 14px;border:1.5px solid var(--border);border-radius:10px;cursor:pointer;transition:all .15s;font-size:0.9rem;line-height:1.45;background:#fff}
.q-options.inline .q-option{min-width:110px}
.q-option:hover{border-color:#94a3b8;background:#fafbfb}
.q-option.selected{border-color:var(--brand);background:var(--brand-dim)}
.q-option.correct{border-color:var(--pass);background:var(--pass-bg)}
.q-option.wrong{border-color:var(--fail);background:var(--fail-bg)}
.q-radio{width:18px;height:18px;border-radius:50%;border:2px solid var(--border);flex-shrink:0;margin-top:1px;display:flex;align-items:center;justify-content:center;transition:all .15s}
.q-option.selected .q-radio{border-color:var(--brand);background:var(--brand)}
.q-option.selected .q-radio::after{content:'';width:6px;height:6px;border-radius:50%;background:#fff}
.q-opt-id{font-weight:700;color:var(--muted);margin-right:6px}
.q-option.selected .q-opt-id{color:var(--brand)}

/* Bank (headlines / text parts) + letter pickers (matching, ordering) */
.match-bank{background:#fafbfb;border:1px solid var(--border);border-radius:10px;padding:14px 16px;margin-bottom:20px}
.match-bank-title{font-weight:700;font-size:0.74rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:10px}
.match-bank-row{display:flex;gap:10px;align-items:flex-start;padding:6px 0;font-size:0.88rem;line-height:1.6}
.match-bank-row.example{opacity:.65}
.match-bank-letter{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:6px;background:var(--brand-dim);color:var(--brand);font-weight:700;font-size:0.78rem;flex-shrink:0}
.match-item{margin-bottom:18px;padding-bottom:18px;border-bottom:1px solid #f1f5f9}
.match-item:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}
.match-item-label{font-weight:700;font-size:0.85rem;color:var(--brand);margin-bottom:6px}
.match-item-text{font-size:0.92rem;line-height:1.7;margin-bottom:12px;color:var(--navy);white-space:pre-line}
.match-picker{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.match-picker-label{font-size:0.78rem;color:var(--muted);margin-right:4px;flex-shrink:0}
.letter-btn{width:34px;height:34px;border-radius:8px;border:1.5px solid var(--border);background:#fff;color:var(--navy);font-family:inherit;font-weight:600;font-size:0.85rem;cursor:pointer;transition:all .15s;padding:0}
.letter-btn:hover:not(:disabled){border-color:#94a3b8;background:#fafbfb}
.letter-btn.selected{border-color:var(--brand);background:var(--brand);color:#fff}
.letter-btn.used{opacity:.35}
.letter-btn.correct{border-color:var(--pass);background:var(--pass-bg);color:var(--pass)}
.letter-btn.wrong{border-color:var(--fail);background:var(--fail-bg);color:var(--fail)}
.letter-btn.correct-missed{border:1.5px dashed var(--pass);background:#fff;color:var(--pass)}
.letter-btn:disabled{cursor:default}

/* Gap fill */
.gap-input{display:inline-block;min-width:150px;padding:7px 10px;border:1.5px solid var(--border);border-bottom-width:2px;border-radius:8px;font-family:inherit;font-size:0.92rem;color:var(--navy);background:#fff;transition:border-color .15s}
.gap-input:focus{outline:none;border-color:var(--brand)}
.gap-input.correct{border-color:var(--pass);background:var(--pass-bg)}
.gap-input.wrong{border-color:var(--fail);background:var(--fail-bg)}
.gap-answer{font-size:0.8rem;color:var(--pass);font-weight:600;margin-left:8px}
.gap-sentence{font-size:0.92rem;line-height:2.1}

/* Audio (course player — unlimited plays; .audio-plays hidden when not limited) */
.audio-block{background:#fafbfb;border:1px solid var(--border);border-radius:10px;padding:14px 16px;margin-bottom:18px}
.audio-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.audio-play{padding:10px 18px;border-radius:9px;border:none;background:var(--brand);color:#fff;font-family:inherit;font-weight:700;font-size:0.88rem;cursor:pointer;transition:opacity .15s;white-space:nowrap}
.audio-play:hover:not(:disabled){opacity:.9}
.audio-play:disabled{background:#cbd5e1;color:#475569;cursor:not-allowed}
.audio-play.playing{background:var(--navy)}
/* Long-clip player (unit.html playBtn): play/pause · restart · seek bar · time · 0.8× */
.lb-player{display:flex;align-items:center;gap:10px;flex:1 1 100%;min-width:0;flex-wrap:nowrap}
.lb-player .audio-play{min-width:92px}
.p-btn{width:34px;height:34px;border-radius:9px;border:1px solid var(--border);background:#fff;color:var(--slate);font-family:inherit;font-size:0.8rem;font-weight:700;cursor:pointer;line-height:1;flex:0 0 auto}
.p-btn:hover{border-color:var(--brand);color:var(--brand)}
.p-btn.p-speed{width:auto;padding:0 9px}
.p-btn.on{background:var(--brand-dim);border-color:var(--brand);color:var(--brand)}
.p-bar{flex:1;min-width:60px;height:8px;background:var(--border);border-radius:4px;overflow:hidden;cursor:pointer;position:relative}
.p-bar::after{content:'';position:absolute;inset:-8px 0}
.p-fill{height:100%;width:0;background:var(--brand);border-radius:4px;transition:width .2s linear}
.lb-player.playing .p-fill{background:var(--navy)}
.p-time{font-size:0.78rem;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap;min-width:38px}
@media (max-width:480px){.lb-player{gap:8px}.lb-player .audio-play{min-width:0;padding:10px 12px}.p-time{font-size:0.72rem;min-width:0}.p-total{display:none}}
.audio-plays{display:inline-flex;align-items:center;gap:6px;background:var(--brand-dim);color:var(--brand);padding:4px 10px;border-radius:999px;font-weight:600;font-size:0.74rem;white-space:nowrap}
.audio-plays.exhausted{background:#f1f5f9;color:var(--muted)}
.audio-progress{flex:1;min-width:120px;height:6px;background:var(--border);border-radius:3px;overflow:hidden}
.audio-progress-fill{height:100%;width:0;background:var(--brand);transition:width .25s linear}
.audio-covers{font-size:0.76rem;color:var(--muted);margin-top:8px}
.audio-rule{background:var(--amber-bg);border:1px solid var(--amber-border);border-radius:10px;padding:12px 14px;margin-bottom:22px;font-size:0.84rem;color:var(--amber);line-height:1.55}

/* Bottom bar */
.bottom-bar{position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--border);padding:12px 24px;display:flex;justify-content:space-between;align-items:center;z-index:100;gap:12px}
.progress-text{font-size:0.82rem;color:var(--muted);font-weight:500}
.btn-row{display:flex;gap:10px}
.btn{padding:10px 24px;border-radius:8px;font-size:0.88rem;font-weight:600;border:none;cursor:pointer;font-family:inherit;transition:opacity .15s;text-decoration:none;display:inline-block;white-space:nowrap}
.btn:hover{opacity:.85}
.btn-skip{background:#f1f5f9;color:var(--navy)}
.btn-submit{background:var(--brand);color:#fff}
.btn-submit:disabled{opacity:.4;cursor:not-allowed}
.btn-back{background:var(--navy);color:#fff}

/* Result banner (auto-graded parts) */
.result-banner{background:var(--surface);border:2px solid var(--border);border-radius:14px;padding:24px;text-align:center;margin-bottom:24px}
.result-score{font-size:2rem;font-weight:700}
.result-score.high{color:var(--pass)}
.result-score.mid{color:var(--amber)}
.result-score.low{color:var(--fail)}

/* Eval banner (AI parts) */
.eval-banner{background:var(--surface);border:2px solid var(--amber-border);border-radius:14px;padding:24px;text-align:center;margin-bottom:24px}
.eval-banner-icon{font-size:1.6rem;margin-bottom:8px}
.eval-banner-title{font-size:1.05rem;font-weight:700;margin-bottom:6px;color:var(--amber)}
.eval-banner-body{font-size:0.86rem;color:var(--muted);line-height:1.55;max-width:520px;margin:0 auto}

/* Stimulus / bullet instruction blocks */
.stimulus{background:#fafbfb;border:1px solid var(--border);border-radius:10px;padding:18px 20px;margin-bottom:18px;font-size:0.92rem;line-height:1.7;white-space:pre-line;color:var(--navy)}
.bullet-instruction{background:var(--amber-bg);border:1px solid var(--amber-border);border-radius:10px;padding:14px 16px;margin-bottom:16px;font-size:0.9rem;color:var(--amber);line-height:1.65;white-space:pre-line}

@media(max-width:640px){
  .topbar{padding:0 14px}
  .topbar-sub,.brand-sub,.user-pill{display:none}
  .exam-wrap{padding:20px 14px 96px}
  .task-card{padding:18px 16px}
  .passage{padding:14px 16px;font-size:0.88rem}
  .match-bank{padding:12px 14px}
  .match-bank-row{font-size:0.85rem}
  .letter-btn{width:32px;height:32px;font-size:0.82rem}
  .bottom-bar{padding:10px 14px}
  .btn{padding:10px 16px;font-size:0.84rem}
}

/* ── Course UI ──────────────────────────────────────────────────────────── */
.unit-wrap{max-width:760px;margin:0 auto;padding:24px 20px 120px}
.step-nav{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 22px}
.step-pill{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:99px;border:1.5px solid var(--border);background:#fff;font-size:0.76rem;font-weight:600;color:var(--muted);cursor:pointer;font-family:inherit;transition:all .15s}
.step-pill.active{border-color:var(--brand);background:var(--brand);color:#fff}
.step-pill.done{border-color:var(--brand-line);background:var(--brand-dim);color:var(--brand-dark)}
.step-pill.done::before{content:'✓';font-size:0.7rem}
.step-pill:disabled{cursor:default;opacity:.6}
.step-title{font-size:1.35rem;font-weight:800;letter-spacing:-.01em;margin-bottom:4px}
.step-intro{font-size:0.9rem;color:var(--muted);line-height:1.6;margin-bottom:20px}

/* Word cards */
.word-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin-bottom:20px}
.word-card{background:var(--surface);border:1.5px solid var(--border);border-radius:12px;padding:14px 16px;display:flex;flex-direction:column;gap:4px;cursor:pointer;transition:all .15s;position:relative}
.word-card:hover{border-color:var(--brand-line);background:#fbfdfd}
.word-card.playing{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-dim)}
.word-pt{font-size:1.05rem;font-weight:800;color:var(--navy)}
.word-tr{font-size:0.86rem;color:var(--slate)}
.word-note{font-size:0.76rem;color:var(--muted);line-height:1.45}
.word-speaker{position:absolute;top:10px;right:12px;font-size:0.95rem;opacity:.55}
.word-card.known .word-speaker{opacity:.9}

/* Structure box */
.gram-box{background:var(--surface);border:1.5px solid var(--border);border-radius:14px;padding:20px 22px;margin-bottom:18px}
.gram-box h3{font-size:1rem;font-weight:800;margin-bottom:8px}
.gram-box p{font-size:0.9rem;line-height:1.65;color:var(--slate);margin-bottom:10px}
.gram-table{width:100%;border-collapse:collapse;font-size:0.9rem;margin:8px 0 12px}
.gram-table td{padding:7px 10px;border-bottom:1px solid #f1f5f9;vertical-align:top}
.gram-table td:first-child{color:var(--muted);width:42%}
.gram-table td:last-child{font-weight:700;color:var(--navy)}
.gram-example{background:var(--brand-dim);border-radius:10px;padding:10px 14px;font-size:0.9rem;line-height:1.6;margin-bottom:8px;display:flex;gap:10px;align-items:flex-start}
.gram-example .pt{font-weight:700;color:var(--brand-dark)}
.gram-example .tr{color:var(--muted);font-size:0.84rem}
.gram-tip{background:var(--amber-bg);border:1px solid var(--amber-border);border-radius:10px;padding:10px 14px;font-size:0.84rem;color:var(--amber);line-height:1.55;margin-top:10px}

/* Drill items */
.drill{background:var(--surface);border:1.5px solid var(--border);border-radius:12px;padding:16px 18px;margin-bottom:12px}
.drill-prompt{font-size:0.92rem;line-height:1.6;margin-bottom:10px}
.drill-prompt .hint{color:var(--muted);font-size:0.82rem;display:block;margin-top:2px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.chip{padding:8px 14px;border-radius:99px;border:1.5px solid var(--border);background:#fff;font-family:inherit;font-size:0.9rem;font-weight:600;color:var(--navy);cursor:pointer;transition:all .15s}
.chip:hover:not(:disabled){border-color:#94a3b8}
.chip.selected{border-color:var(--brand);background:var(--brand);color:#fff}
.chip.used{opacity:.3}
.chip:disabled{cursor:default}
.build-line{min-height:46px;border:1.5px dashed var(--border);border-radius:10px;padding:8px 12px;display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-bottom:10px;background:#fafbfb;font-size:0.95rem}
.build-line .chip{background:var(--brand-dim);border-color:var(--brand-line);color:var(--brand-dark)}
.drill-feedback{font-size:0.86rem;font-weight:600;margin-top:8px;display:none}
.drill-feedback.ok{display:block;color:var(--pass)}
.drill-feedback.bad{display:block;color:var(--fail)}
.drill-answer{font-size:0.86rem;color:var(--slate);margin-top:4px}
.drill-check{margin-top:4px}
.btn-sm{padding:8px 16px;font-size:0.82rem}
.btn-ghost{background:#fff;border:1.5px solid var(--border);color:var(--navy)}

/* Transcript toggle */
.transcript{background:#fafbfb;border:1px solid var(--border);border-radius:10px;padding:14px 16px;margin-top:14px;font-size:0.9rem;line-height:1.75}
.transcript{display:grid;grid-template-columns:max-content minmax(0,1fr);column-gap:12px;row-gap:6px;align-items:baseline}
.transcript .line{display:contents}
.transcript .who{font-weight:700;color:var(--brand);white-space:nowrap}
.transcript .line > span:last-child{min-width:0}

/* Writing / speaking */
.write-area{width:100%;min-height:120px;padding:12px 14px;border:1.5px solid var(--border);border-radius:10px;font-family:inherit;font-size:0.95rem;line-height:1.6;color:var(--navy);resize:vertical}
.write-area:focus{outline:none;border-color:var(--brand)}
.word-count{font-size:0.78rem;color:var(--muted);margin-top:6px}
.ai-card{background:var(--surface);border:1.5px solid var(--brand-line);border-radius:12px;padding:16px 18px;margin-top:14px}
.ai-card h4{font-size:0.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--brand);margin-bottom:8px}
.ai-card .corrected{font-size:0.95rem;font-weight:600;line-height:1.6;margin-bottom:10px}
.ai-card ul{padding-left:18px;font-size:0.86rem;line-height:1.6;color:var(--slate)}
.ai-card .score{display:inline-block;margin-top:8px;padding:3px 10px;border-radius:99px;background:var(--brand-dim);color:var(--brand-dark);font-size:0.76rem;font-weight:700}
.rec-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:12px 0}
.rec-btn{padding:12px 22px;border-radius:99px;border:none;background:var(--accent);color:#fff;font-family:inherit;font-weight:700;font-size:0.9rem;cursor:pointer}
.rec-btn.recording{background:var(--navy);animation:pulse 1.2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(15,23,42,.35)}50%{box-shadow:0 0 0 8px rgba(15,23,42,0)}}
.rec-time{font-variant-numeric:tabular-nums;font-size:0.9rem;color:var(--muted)}
.rec-player{margin-top:8px;width:100%}
.sample-answer{background:#fafbfb;border:1px dashed var(--border);border-radius:10px;padding:12px 14px;font-size:0.88rem;line-height:1.6;margin-top:12px;color:var(--slate)}

/* Review (flashcards) */
.flash{background:var(--surface);border:1.5px solid var(--border);border-radius:16px;padding:34px 24px;text-align:center;min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;margin-bottom:14px}
.flash-front{font-size:1.6rem;font-weight:800}
.flash-back{font-size:1.05rem;color:var(--slate)}
.flash-meta{font-size:0.74rem;color:var(--muted)}
.rate-row{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.rate-btn{padding:10px 18px;border-radius:10px;border:1.5px solid var(--border);background:#fff;font-family:inherit;font-weight:700;font-size:0.86rem;cursor:pointer}
.rate-btn.again{color:var(--fail)}.rate-btn.hard{color:var(--amber)}.rate-btn.good{color:var(--pass)}.rate-btn.easy{color:var(--brand)}

/* Step done banner */
.step-done{background:var(--pass-bg);border:1.5px solid #86efac;border-radius:12px;padding:14px 18px;font-size:0.9rem;color:var(--pass);font-weight:600;margin-top:18px;display:flex;align-items:center;gap:10px}

/* Dashboard: unit map */
.unit-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.unit-tile{background:var(--surface);border:1.5px solid var(--border);border-radius:12px;padding:14px 14px 12px;text-decoration:none;color:var(--navy);display:flex;flex-direction:column;gap:6px;transition:all .15s;position:relative;min-height:112px}
.unit-tile:hover{border-color:var(--brand-line);transform:translateY(-1px)}
.unit-tile.locked{opacity:.55;pointer-events:none}
.unit-tile.done{border-color:var(--brand-line);background:#fbfdfd}
.unit-tile.current{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-dim)}
.unit-tile.checkpoint{border-style:dashed}
.unit-num{font-size:0.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.unit-theme{font-size:0.9rem;font-weight:700;line-height:1.3;flex:1}
.unit-struct{font-size:0.74rem;color:var(--muted);line-height:1.4}
.unit-bar{height:4px;background:var(--border);border-radius:2px;overflow:hidden;margin-top:4px}
.unit-bar-fill{height:100%;background:var(--brand)}
.unit-flag{position:absolute;top:10px;right:10px;font-size:0.8rem}

/* ── Luxembourgish course additions ─────────────────────────────────────────── */
/* Audio placeholder (recordings are made once all units are final): calm chip instead of a play button */
.audio-soon{display:inline-flex;align-items:center;gap:6px;background:#f1f5f9;color:var(--muted);border:1px dashed var(--border);padding:7px 12px;border-radius:9px;font-size:0.78rem;font-weight:600;white-space:nowrap}
.audio-soon::before{content:'♪';opacity:.6}
/* Dialogue (step 1): one line per turn, Luxembourgish first, translation under it */
.dialogue{background:var(--surface);border:1.5px solid var(--border);border-radius:14px;padding:18px 20px;margin-bottom:18px}
.dlg-line{display:grid;grid-template-columns:max-content minmax(0,1fr);column-gap:12px;row-gap:2px;padding:8px 0;border-bottom:1px solid #f1f5f9}
.dlg-line:last-child{border-bottom:none}
.dlg-who{font-weight:700;color:var(--brand);white-space:nowrap;font-size:0.86rem;padding-top:2px}
.dlg-lb{font-size:1rem;font-weight:600;color:var(--navy);line-height:1.5}
.dlg-tr{grid-column:2;font-size:0.84rem;color:var(--muted);line-height:1.45}
.dlg-line.playing .dlg-lb{color:var(--brand-dark)}
.dialogue.hide-tr .dlg-tr{display:none}
/* Pronunciation box inside the structure step */
.pron-row{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;padding:6px 0;border-bottom:1px solid #f1f5f9;font-size:0.92rem}
.pron-row:last-child{border-bottom:none}
.pron-row .lb{font-weight:700;color:var(--navy)}
.pron-row .ipa{color:var(--muted);font-size:0.84rem}
/* Speak step: model answer card */
.model-answer{background:var(--brand-dim);border:1px solid var(--brand-line);border-radius:12px;padding:14px 16px;margin-top:14px}
.model-answer h4{font-size:0.74rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--brand-dark);margin-bottom:8px}
.model-answer .lb{font-size:0.98rem;line-height:1.6;color:var(--navy);white-space:pre-line}
.model-answer .tr{font-size:0.84rem;color:var(--slate);margin-top:8px;line-height:1.5;white-space:pre-line}
.speak-tips{font-size:0.84rem;color:var(--slate);line-height:1.55;margin:10px 0 0;padding-left:18px}
.speak-tips li{margin:3px 0}
/* Photo step */
.photo-box{background:#fafbfb;border:1px solid var(--border);border-radius:12px;overflow:hidden;margin-bottom:16px}
.photo-box img{display:block;width:100%;max-height:420px;object-fit:cover}
.photo-missing{display:flex;align-items:center;justify-content:center;min-height:180px;color:var(--muted);font-size:0.86rem;text-align:center;padding:24px;line-height:1.5}