/* =========================================================
   DE A1→B1 drill course — scoped under .drill-page
   ========================================================= */

.drill-page {
  --drill-bg: #faf7f2;
  --drill-fg: #1d1b16;
  --drill-fg-soft: #6a6354;
  --drill-line: #ddd6c5;
  --drill-card: #fff;
  --drill-accent: #b35422;
  --drill-accent-soft: #f0d8c4;
  --drill-de: #213b66;

  --controlled: #6c8d4a;
  --semi: #b58a3a;
  --freer: #aa5a44;
  --free: #6a3d8a;

  --status-untouched: #d9d3c1;
  --status-viewed:    #5b8fbf;
  --status-done:      #5fa15a;
  --status-wrong:     #c25a4a;

  --layer1: #d8e8c4;
  --layer2: #e7d8a4;
  --layer3: #e7c0a8;
  --layer4: #c8b4d8;

  background: var(--drill-bg);
  color: var(--drill-fg);
  min-height: calc(100vh - 3rem);
}

/* Override body max-width for drill pages */
body:has(.drill-page) {
  background: var(--drill-bg);
}

.drill-page a { color: var(--drill-accent); }
.drill-page .container { max-width: 980px; margin: 0 auto; padding: 1.5rem; }

/* ---- Topbar (sits below the trainer nav) ---- */
.topbar {
  background: var(--drill-fg);
  color: var(--drill-bg);
  padding: 0.5rem 0.9rem;
  display: flex;
  align-items: stretch;
  gap: 0.5rem;
  min-height: 56px;
  margin: -1rem -1rem 0;
}
.topbar .brand-mini {
  color: var(--drill-bg);
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 0.95rem;
  align-self: center;
}
.topbar .back {
  color: rgba(255,255,255,0.85);
  font-size: 1.5rem;
  line-height: 1;
  text-decoration: none;
  display: grid;
  place-items: center;
  width: 32px;
  height: 40px;
  align-self: center;
  border-radius: 4px;
  font-weight: 600;
}
.topbar .back:hover { background: rgba(255,255,255,0.12); color: white; text-decoration: none; }
.topbar .sep { color: rgba(255,255,255,0.3); font-size: 1rem; align-self: center; }
.topbar .lesson-num {
  color: var(--drill-accent-soft);
  font-family: 'SF Mono', Menlo, monospace;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  align-self: center;
  margin-right: 0.4rem;
}

/* ---- Lesson list ---- */
.lesson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}
.lesson-card {
  display: block;
  padding: 1rem;
  background: var(--drill-card);
  border: 1px solid var(--drill-line);
  border-radius: 8px;
  color: var(--drill-fg);
  border-left: 4px solid var(--layer1);
  transition: transform 0.1s, border-color 0.1s;
  text-decoration: none;
}
.lesson-card.layer-1 { border-left-color: var(--layer1); }
.lesson-card.layer-2 { border-left-color: var(--layer2); }
.lesson-card.layer-3 { border-left-color: var(--layer3); }
.lesson-card.layer-4 { border-left-color: var(--layer4); }
.lesson-card.empty { opacity: 0.5; }
.lesson-card:hover { transform: translateY(-1px); border-color: var(--drill-accent); text-decoration: none; }
.lesson-card .lesson-num-label {
  font-family: 'SF Mono', Menlo, monospace;
  color: var(--drill-fg-soft);
  font-size: 0.78rem;
}
.lesson-card .lesson-name { font-size: 1rem; font-weight: 600; margin: 0.2rem 0 0.5rem; }
.lesson-card .lesson-name-ua { font-size: 0.85rem; color: var(--drill-fg-soft); margin-top: -0.35rem; margin-bottom: 0.5rem; }
.lesson-meta { display: flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; color: var(--drill-fg-soft); }
.prog-bar { display: flex; flex: 1; height: 6px; border-radius: 3px; overflow: hidden; background: var(--drill-line); }
.prog { height: 100%; }
.prog.c  { background: var(--controlled); }
.prog.s  { background: var(--semi); }
.prog.fr { background: var(--freer); }
.prog.f  { background: var(--free); }
.task-count { font-family: 'SF Mono', Menlo, monospace; }

/* ---- Stage cells in topbar ---- */
.topbar .cell {
  flex: 0 0 36px;
  border-radius: 4px;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  height: 40px;
  align-self: center;
  display: grid;
  place-items: center;
  font-family: 'SF Mono', Menlo, monospace;
  font-weight: 600;
  font-size: 0.95rem;
  color: white;
}
.topbar .cell:hover { opacity: 0.85; text-decoration: none; }
.topbar .cell.empty { opacity: 0.22; cursor: default; pointer-events: none; }
.topbar .cell.stage-controlled { --stage: #4a6e8d; background: var(--stage); }
.topbar .cell.stage-semi       { --stage: #876b3a; background: var(--stage); }
.topbar .cell.stage-freer      { --stage: #8c4a5e; background: var(--stage); }
.topbar .cell.stage-free       { --stage: #5e4a87; background: var(--stage); }
.topbar .cell.active {
  flex: 1 1 auto;
  min-width: 0;
  display: grid;
  grid-template-columns: 36px 1fr 36px;
  align-items: center;
  padding: 0 2px;
  background: rgba(255,255,255,0.06);
  border: 1.5px solid var(--stage);
  height: 44px;
}

@keyframes flash-pulse {
  0%   { box-shadow: 0 0 0 0 currentColor; transform: scale(1); }
  40%  { box-shadow: 0 0 0 6px transparent; transform: scale(1.05); }
  100% { box-shadow: 0 0 0 0 transparent; transform: scale(1); }
}
.cell.flash { animation: flash-pulse 0.9s ease-out; }

.edge {
  background: transparent;
  border: 0;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--stage);
  cursor: pointer;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 4px;
  text-decoration: none;
  user-select: none;
  font-weight: 600;
}
.edge:hover { background: color-mix(in srgb, var(--stage) 12%, transparent); text-decoration: none; }
.edge.disabled { opacity: 0.35; cursor: not-allowed; }
.edge.disabled:hover { background: transparent; }
.edge.disabled[data-flash] { cursor: pointer; opacity: 0.55; }
.edge.disabled[data-flash]:hover { background: color-mix(in srgb, var(--stage) 10%, transparent); }

.bars {
  display: flex;
  flex-wrap: nowrap;
  gap: 2px;
  height: 28px;
  align-items: stretch;
  overflow: hidden;
  padding: 0 6px;
}
.bar {
  flex: 1 1 0;
  min-width: 3px;
  border-radius: 2px;
  background: var(--drill-card);
  border: 1.5px solid var(--stage);
}
.bar.status-done { background: var(--stage); }
.bar.current { outline: 2px solid white; outline-offset: 1px; z-index: 2; }

/* ---- Task card ---- */
.task-page { padding: 1.2rem 1rem; }
.task-card {
  background: var(--drill-card);
  border: 1px solid var(--drill-line);
  border-radius: 12px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 320px 1fr;
}
@media (max-width: 720px) { .task-card { grid-template-columns: 1fr; } }
.task-card-image { background: #efe6d6; min-height: 320px; }
.task-card-image img { width: 100%; height: 100%; object-fit: cover; display: block; }
.task-card-body { padding: 1.4rem 1.6rem; }

.block { margin: 0.85rem 0; }
.block-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--drill-fg-soft);
  margin-bottom: 0.2rem;
  font-family: 'Iowan Old Style', Georgia, serif;
}
.block-text { font-size: 1.02rem; line-height: 1.5; white-space: pre-wrap; }
.block-text.de { font-family: 'Iowan Old Style', Georgia, serif; color: var(--drill-de); display: flex; align-items: baseline; gap: 0; }
.block-text.de.strong { font-weight: 600; font-size: 1.15rem; }
.block.situation { display: flex; align-items: flex-start; gap: 0.5rem; }
.block.situation .block-text { color: var(--drill-fg-soft); font-size: 0.95rem; flex: 1; }
.bulb {
  border: 0;
  background: transparent;
  cursor: pointer;
  font-size: 1.4rem;
  line-height: 1;
  padding: 0.25rem 0.4rem;
  border-radius: 6px;
  flex-shrink: 0;
  filter: grayscale(0.4) brightness(0.95);
  transition: filter 0.15s, transform 0.1s;
}
.bulb:hover { filter: grayscale(0) brightness(1.1); transform: scale(1.08); }
.bulb:active { transform: scale(0.96); }

/* ---- Exchange grid (prompt + cue with play/mic on left) ---- */
.exchange {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 0.4rem;
  margin: 1rem 0;
}
.exchange-row { display: contents; }
.exchange-row > .ctrl-btn { grid-column: 1; }
.exchange-row > .exchange-text { grid-column: 2; }

/* NOTE: .ctrl-btn is also used by the practice page (03-practice.css). These
 * rules MUST stay scoped under .drill-page or they leak page-wide — and since
 * 11-drill.css loads after 03-practice.css, an unscoped .ctrl-btn here wins
 * the cascade on tied specificity and its drill-var border collapses to none
 * on the practice page. Keep the .drill-page prefix. */
.drill-page .ctrl-btn {
  width: 48px; height: 48px;
  border-radius: 50%;
  border: 2px solid var(--drill-accent);
  background: var(--drill-card);
  color: var(--drill-accent);
  font-size: 1rem;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background 0.15s, transform 0.1s;
}
.drill-page .ctrl-btn:hover { background: var(--drill-accent-soft); }
.drill-page .ctrl-btn.playing { background: var(--drill-accent); color: white; border-color: var(--drill-accent); }
.drill-page .ctrl-btn.audio-missing { opacity: 0.3; cursor: not-allowed; }
.drill-page .ctrl-btn.mic { font-size: 1.2rem; }
.drill-page .ctrl-btn.mic.recording {
  background: var(--status-wrong);
  border-color: var(--status-wrong);
  color: white;
  animation: drill-pulse 1.2s infinite;
}
.drill-page .ctrl-btn.mic.thinking {
  background: var(--drill-accent-soft);
  border-color: var(--drill-accent);
  animation: drill-spin 1.4s linear infinite;
}

.exchange-text {
  align-self: center;
  padding: 0.55rem 0.9rem;
  background: var(--drill-bg);
  border-radius: 6px;
  font-size: 1.02rem;
  line-height: 1.45;
}
.exchange-text.de {
  font-family: 'Iowan Old Style', Georgia, serif;
  color: var(--drill-de);
  border-left: 3px solid var(--drill-de);
}
.exchange-text:not(.de) { border-left: 3px solid var(--drill-line); }
.exchange-text .block-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--drill-fg-soft);
  margin-bottom: 0.15rem;
}

.vocab-chips { display: flex; flex-wrap: wrap; gap: 0.3rem; margin: 0.7rem 0 0.5rem; }
.chip.vocab {
  font-family: 'Iowan Old Style', Georgia, serif;
  font-size: 0.92rem;
  padding: 0.15rem 0.55rem;
  background: var(--drill-card);
  border: 1px solid var(--drill-line);
  border-radius: 999px;
  color: var(--drill-de);
}

.speak {
  background: transparent;
  border: 1px solid var(--drill-line);
  color: var(--drill-accent);
  font-size: 0.78rem;
  padding: 0;
  width: 24px; height: 24px;
  border-radius: 50%;
  cursor: pointer;
  margin-right: 0.45rem;
  vertical-align: middle;
  display: inline-grid;
  place-items: center;
  flex-shrink: 0;
}
.speak:hover { background: var(--drill-accent-soft); }
.speak.playing { background: var(--drill-accent); color: white; border-color: var(--drill-accent); }
.speak.audio-missing { opacity: 0.3; }
.block-text.de .speak { align-self: center; }

.produce-result { font-size: 0.95rem; margin: 0.8rem 0; min-height: 1.5rem; }
.stt-line em { color: var(--drill-de); font-family: 'Iowan Old Style', Georgia, serif; font-style: normal; }
.stt-score { font-family: 'SF Mono', Menlo, monospace; font-weight: 600; margin-top: 0.2rem; }
.stt-score.status-done { color: var(--status-done); }
.stt-score.status-wrong { color: var(--status-wrong); }
.stt-error { color: var(--status-wrong); font-size: 0.86rem; }

.answer-reveal {
  margin-top: 0.8rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--drill-line);
}
.answer-reveal[hidden] { display: none; }

.block.target { margin-top: 0.7rem; }
.alternatives { margin-top: 0.4rem; opacity: 0.85; }
.alternatives .block-text { font-size: 0.95rem; }

.peek-bubble {
  position: absolute;
  z-index: 1000;
  background: #1d1b16;
  color: #faf7f2;
  font-size: 0.92rem;
  line-height: 1.4;
  padding: 0.6rem 0.8rem;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.22);
  pointer-events: none;
  white-space: normal;
  max-width: 320px;
}
.peek-bubble::before {
  content: '';
  position: absolute;
  top: -6px; right: 14px;
  width: 0; height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-bottom: 6px solid #1d1b16;
}

@keyframes drill-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}
@keyframes drill-spin {
  from { transform: rotate(0); }
  to { transform: rotate(360deg); }
}

/* =========================================================
   Mobile fixes
   ========================================================= */

/* Prevent bars/cells from leaking outside the topbar on any screen */
.topbar { overflow: hidden; }

@media (max-width: 600px) {
  /* Drop verbose labels — bars need the room */
  .topbar .brand-mini,
  .topbar .sep,
  .topbar .lesson-num { display: none; }

  /* Shrink inactive stage cells so active cell (bars) gets space */
  .topbar .cell {
    flex: 0 0 26px;
    height: 34px;
    font-size: 0.8rem;
  }
  .topbar .cell.active {
    height: 38px;
    grid-template-columns: 30px 1fr 30px;
  }
  .edge { height: 34px; font-size: 1.25rem; }

  /* Shorter image — keeps content above the fold */
  .task-card-image { min-height: 180px; }

  /* Tighter padding throughout */
  .drill-page .container { padding: 1rem; }
  .task-page { padding: 0.7rem 0.5rem; }
  .task-card-body { padding: 1rem 1.1rem; }
}