/* ============================================================
   Kadence – by Trio Firšt Lab
   ============================================================ */

.fff-lab-kadence-app *, .fff-lab-kadence-app *::before, .fff-lab-kadence-app *::after {
  box-sizing: border-box; margin: 0; padding: 0;
}

/* ── App shell ── */
.fff-lab-kadence-app {
  font-family:   var(--lab-font);
  max-width:     var(--lab-max-w);
  width:         100%;
  margin:        0 auto;
  background:    transparent;
  border-radius: 0;
  box-shadow:    none;
  overflow:      hidden;
  color:         var(--lab-text);
  -webkit-tap-highlight-color: transparent;
}

/* ── Header ── */
.fff-header {
  display:         flex;
  align-items:     center;
  justify-content: space-between;
  gap:             16px;
  flex-wrap:       wrap;
  padding:         0 0 6px;
  background:      transparent;
  border-bottom:   0;
  min-height:      auto;
}
.fff-header__brand { display:flex; flex-direction:column; }
.fff-header__title { display:flex; align-items:center; gap:9px; }
.fff-logo-mark {
  width:38px; height:38px; border-radius:999px;
  background:var(--lab-accent-bg); color:var(--lab-accent-dark);
  display:flex; align-items:center; justify-content:center;
  font-size:18px; font-family:var(--lab-font); font-weight:900;
  flex-shrink:0; user-select:none;
}
.fff-header h2 {
  font-family:var(--lab-font-display); font-size:26px; font-weight:900;
  color:var(--lab-text); line-height:1; letter-spacing:-.5px;
}
.fff-header__sub {
  font-family:var(--lab-font); font-size:14px; color:var(--lab-muted);
  letter-spacing:0; text-transform:none; padding-left:47px; margin-top:6px;
}
.fff-header__meta { display:flex; flex-direction:column; align-items:flex-end; gap:5px; }
.fff-level-badge {
  display:flex; align-items:baseline; gap:3px;
  background:var(--lab-bg); border:1.5px solid var(--lab-border);
  border-radius:var(--lab-radius); padding:3px 10px 3px 8px;
}
.fff-level-badge__label {
  font-family:var(--lab-font-mono); font-size:9px; color:var(--lab-muted);
  letter-spacing:1.2px; text-transform:uppercase;
}
.fff-level-badge__num {
  font-family:var(--lab-font); font-size:22px; font-weight:900;
  color:var(--lab-text); line-height:1;
}
.fff-xp-wrap { display:flex; align-items:center; gap:6px; }
.fff-xp-bar  { width:96px; height:5px; background:var(--lab-border); border-radius:3px; overflow:hidden; }
.fff-xp-bar__fill {
  height:100%; background:var(--lab-accent); border-radius:2px;
  width:0%; transition:width .6s cubic-bezier(.4,0,.2,1);
}
.fff-xp-text { font-family:var(--lab-font-mono); font-size:10px; color:var(--lab-muted); min-width:54px; text-align:right; }

/* ── Tabs ── */
.fff-lab-kadence-app .fff-tabs.lab-tabs {
  display:flex; gap:8px; background:transparent; border-bottom:0; margin: 0 0 14px;
  padding:0;
  border:none;
  border-radius:0;
  box-shadow:none;
}
.fff-lab-kadence-app .fff-tab-btn.lab-tab {
  flex:1; padding:14px 16px; border:1px solid #e6c5c5; background:#f6e3e3; cursor:pointer;
  font-family:var(--lab-font); font-size:.92rem; font-weight:800;
  color:#8f6767; letter-spacing:.2px;
  border-bottom:0; margin-bottom:0;
  border-radius:0;
  transition:color var(--lab-ease), border-color var(--lab-ease), background var(--lab-ease), box-shadow var(--lab-ease);
  white-space:nowrap;
  text-transform:none;
  min-height:auto;
}
.fff-lab-kadence-app .fff-tab-btn.lab-tab:hover { color:#7a2424; background:#f2d0d0; border-color:#dcaaaa; }
.fff-lab-kadence-app .fff-tab-btn.lab-tab[aria-selected="true"] {
  color:#fff;
  background:linear-gradient(180deg, #d62c2c 0%, #ab1515 100%);
  border-bottom-color:#911313;
  border-color:#911313;
  box-shadow:0 8px 20px rgba(171,21,21,.24);
}
.fff-lab-kadence-app .fff-tab-btn.lab-tab:focus-visible { outline:3px solid var(--lab-accent); outline-offset:2px; }

.fff-lab-kadence-app .fff-tab-btn--square.lab-tab {
  flex:1;
  padding:14px 16px;
  border-left:1px solid #e6c5c5;
  background:#f6e3e3;
  font-size:.92rem;
  letter-spacing:.2px;
  text-transform:none;
  color:#8f6767;
  border-radius:0;
}
.fff-lab-kadence-app .fff-tab-btn--square.lab-tab[aria-selected="true"] {
  background:linear-gradient(180deg, #d62c2c 0%, #ab1515 100%);
  color:#fff;
  border-bottom-color:#911313;
}

/* ── Panels ── */
.fff-panel       { display:none; padding:0; }
.fff-panel.active { display:block; }
.fff-exercise    { min-height:200px; }

/* ── Playing bar ── */
.fff-playing-bar {
  --fff-beat-duration: 1s;
  --fff-chord-duration: 2s;
  display:flex; align-items:center; justify-content:center; gap:18px;
  margin:20px 0 26px;
  padding:28px 24px;
  min-height:132px;
  border:1.5px solid var(--lab-border);
  border-radius:24px;
  background:
    radial-gradient(circle at top, rgba(224,173,70,.18), transparent 58%),
    linear-gradient(180deg, rgba(255,255,255,.84), rgba(255,255,255,.64));
  box-shadow:var(--lab-shadow);
  font-family:var(--lab-font-display); font-size:1.7rem; font-weight:900;
  color:var(--lab-text); letter-spacing:.02em; text-transform:none;
}
.fff-playing-bar__visual {
  display:inline-flex; align-items:center; gap:14px;
  padding:14px 16px;
  border-radius:999px;
  background:rgba(255,255,255,.66);
  border:1px solid rgba(224,173,70,.28);
  box-shadow:0 10px 24px rgba(224,173,70,.14);
  animation:fff-playing-glow var(--fff-chord-duration) ease-in-out infinite;
}
.fff-playing-bar__text {
  line-height:1.15;
}
.fff-dot {
  width:14px; height:14px; border-radius:50%;
  background:var(--lab-accent); border:2px solid var(--lab-accent-dark);
  animation:fff-pulse var(--fff-beat-duration) ease-in-out infinite; flex-shrink:0;
}
@keyframes fff-pulse { 0%,100%{transform:scale(1)} 50%{transform:scale(1.45)} }
@keyframes fff-playing-glow {
  0%, 100% { transform:translateY(0); box-shadow:0 10px 24px rgba(224,173,70,.14); }
  50% { transform:translateY(-1px); box-shadow:0 14px 28px rgba(224,173,70,.22); }
}
.fff-sound-wave {
  display:flex; align-items:flex-end; gap:5px;
  height:36px;
}
.fff-sound-wave__bar {
  width:5px;
  height:12px;
  border-radius:999px;
  background:linear-gradient(180deg, var(--lab-accent), var(--lab-accent-dark));
  transform-origin:center bottom;
  animation:fff-wave var(--fff-beat-duration) ease-in-out infinite;
}
@keyframes fff-wave {
  0%, 100% { transform:scaleY(.45); opacity:.5; }
  50% { transform:scaleY(1.6); opacity:1; }
}

/* ── Question ── */
.fff-question {
  font-family:var(--lab-font-display); font-size:1.8rem; font-weight:900;
  letter-spacing:-.02em; line-height:1.2; color:var(--lab-text);
  margin:18px 0 30px;
  padding:20px 24px;
  text-align:center;
  border-radius:22px;
  background:linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.58));
  border:1.5px solid rgba(224,173,70,.18);
  box-shadow:var(--lab-shadow);
}

/* ── Choices ── */
.fff-choices {
  display:grid; grid-template-columns:repeat(auto-fill,minmax(180px,1fr));
  gap:10px; margin-bottom:18px;
}
.fff-choice-btn {
  padding:14px 16px; border:2px solid var(--lab-border); border-radius:18px;
  background:var(--lab-surface); cursor:pointer; font-family:var(--lab-font);
  font-size:.9rem; font-weight:600; text-align:center; transition:all var(--lab-ease);
  min-height:56px; color:var(--lab-text);
}
.fff-choice-btn:hover:not(:disabled) { border-color:var(--lab-accent); background:var(--lab-accent-bg); }
.fff-choice-btn:focus-visible { outline:3px solid var(--lab-accent); outline-offset:2px; }
.fff-choice-btn.correct { background:var(--lab-success-bg); border-color:var(--lab-success); color:var(--lab-success); }
.fff-choice-btn.wrong   { background:var(--lab-danger-bg); border-color:var(--lab-danger); color:var(--lab-danger); }
.fff-choice-btn:disabled { cursor:default; }

/* ── Action buttons row ── */
.fff-action-row {
  display:grid; grid-template-columns:1fr 1fr; gap:12px; margin-bottom:18px;
}
.fff-btn {
  display:inline-flex; align-items:center; justify-content:center; gap:7px;
  padding:13px 20px; border:none; border-radius:var(--lab-radius);
  font-family:var(--lab-font); font-size:1rem; font-weight:800;
  letter-spacing:.2px; cursor:pointer; transition:all var(--lab-ease);
  min-height:50px; white-space:nowrap;
}
.fff-btn:focus-visible { outline:3px solid var(--lab-accent); outline-offset:2px; }
.fff-btn-primary { background:var(--lab-accent); color:#fff; box-shadow:0 2px 8px var(--lab-accent-glow); }
.fff-btn-primary:hover  { background:var(--lab-accent-dark); }
.fff-btn-primary:active { transform:scale(.97); }
.fff-btn-secondary { background:var(--lab-surface); color:var(--lab-accent); border:2px solid var(--lab-accent); }
.fff-btn-secondary:hover { background:var(--lab-accent-bg); }
.fff-btn-danger { background:var(--lab-danger); color:#fff; }
.fff-btn-sm  { padding:7px 14px; font-size:.8rem; min-height:34px; border-radius:var(--lab-radius-sm); }
.fff-btn-full { width:100%; }
.fff-btn:disabled { opacity:.4; cursor:not-allowed; transform:none !important; }

.fff-lab-kadence-app .fff-tab-btn,
.fff-lab-kadence-app .fff-choice-btn,
.fff-lab-kadence-app .fff-btn,
.fff-lab-kadence-app button {
  text-transform:none !important;
}

/* ── Feedback ── */
.fff-feedback {
  padding:14px 16px; border-radius:var(--lab-radius); margin-bottom:16px;
  font-weight:700; font-size:1rem; font-family:var(--lab-font);
  animation:fff-pop .3s cubic-bezier(.34,1.56,.64,1);
}
@keyframes fff-pop { 0%{transform:scale(.94);opacity:0} 100%{transform:scale(1);opacity:1} }
.fff-feedback.correct { background:var(--lab-success-bg); color:var(--lab-success); border:1.5px solid var(--lab-success-border); }
.fff-feedback.wrong   { background:var(--lab-danger-bg); color:var(--lab-danger); border:1.5px solid var(--lab-danger-border); }
.fff-explanation { font-size:.875rem; font-weight:400; margin-top:6px; color:var(--lab-text); }

/* ── Notation ── */
.fff-notation-wrap {
  margin-bottom:16px; background:var(--lab-surface); border:1.5px solid var(--lab-border);
  border-radius:var(--lab-radius); padding:10px 14px 6px; box-shadow:var(--lab-shadow);
  overflow-x:auto; animation:fff-pop .35s cubic-bezier(.34,1.56,.64,1);
}
.fff-notation-label {
  font-family:var(--lab-font-mono); font-size:9px; font-weight:700; color:var(--lab-muted);
  letter-spacing:1.4px; text-transform:uppercase; margin:0 0 6px;
}
.fff-notation-wrap svg { max-width:100%; overflow:visible; display:block; }

/* ── Inline settings ── */
.fff-inline-settings { border-top:0; margin-top:4px; }
.fff-inline-settings .fff-settings-bar { background:transparent; padding:0; }
.fff-settings-bar   { padding:12px 16px; box-shadow:none; }
.fff-settings-grid  {
  display:grid; grid-template-columns:repeat(auto-fill,minmax(128px,1fr)); gap:10px; margin-top:8px;
}
.fff-settings-group label {
  display:block; font-family:var(--lab-font-mono); font-size:.68rem; font-weight:700;
  color:var(--lab-muted); margin-bottom:4px; text-transform:uppercase; letter-spacing:.06em;
}
.fff-settings-group select, .fff-settings-group input[type=range] {
  width:100%; border:1.5px solid var(--lab-border); border-radius:var(--lab-radius-sm); padding:6px 8px;
  font-size:.875rem; background:var(--lab-bg); color:var(--lab-text); font-family:var(--lab-font);
}
.fff-settings-group select:focus { outline:none; border-color:var(--lab-accent); box-shadow:0 0 0 3px var(--lab-accent-bg); }
.fff-tempo-display { font-family:var(--lab-font-mono); font-size:.72rem; color:var(--lab-muted); margin-top:2px; }
.fff-toggle-row { display:flex; align-items:center; gap:16px; margin-top:10px; flex-wrap:wrap; }
.fff-toggle-label { font-size:.82rem; color:var(--lab-text); cursor:pointer; display:flex; align-items:center; gap:6px; }

/* ── Stats bar ── */
.fff-stats-bar {
  display:flex; gap:10px; flex-wrap:wrap; padding:12px 0 0;
  background:transparent; border-top:0;
  font-size:.75rem; font-family:var(--lab-font-mono); color:var(--lab-muted); align-items:center;
}
.fff-stat-item strong { color:var(--lab-text); font-family:var(--lab-font); font-size:.9rem; }

.fff-panel--utility {
  padding-top: 4px;
}

.fff-tab-btn--utility {
  opacity: 1;
}

/* ── Categories ── */
.fff-categories-list {
  display:grid; grid-template-columns:repeat(auto-fill,minmax(185px,1fr)); gap:12px; margin-bottom:20px;
}
.fff-category-card {
  border:2px solid var(--lab-border); border-radius:var(--lab-radius); padding:14px;
  cursor:pointer; transition:all var(--lab-ease); background:var(--lab-surface);
}
.fff-category-card.selected { border-color:var(--lab-accent); background:var(--lab-accent-bg); }
.fff-category-card:hover    { border-color:var(--lab-accent); }
.fff-category-card h3 { margin:0 0 5px; font-size:.88rem; font-weight:700; font-family:var(--lab-font); }
.fff-category-card p  { margin:0; font-size:.78rem; color:var(--lab-muted); }
.fff-category-actions { display:flex; gap:10px; flex-wrap:wrap; }

/* ── Blind overlay ── */
.fff-choices-wrapper { position:relative; }
.fff-blind-overlay {
  position:absolute; inset:0; background:rgba(248,250,252,.92);
  display:flex; align-items:center; justify-content:center;
  font-family:var(--lab-font); font-size:1.3rem; font-weight:900;
  color:var(--lab-muted); border-radius:var(--lab-radius); z-index:10;
  backdrop-filter:blur(2px);
}

/* ── XP toast ── */
.fff-xp-toast {
  position:fixed; bottom:24px; right:20px;
  background:var(--lab-accent); color:#fff;
  font-family:var(--lab-font); font-size:1rem; font-weight:900;
  padding:10px 20px; border-radius:50px; box-shadow:0 4px 16px var(--lab-accent-glow);
  animation:fff-toast .4s cubic-bezier(.34,1.56,.64,1); z-index:9999; pointer-events:none;
}
@keyframes fff-toast { 0%{transform:translateY(30px);opacity:0} 100%{transform:translateY(0);opacity:1} }

/* ── Responsive ── */
@media (max-width:600px) {
  .fff-lab-kadence-app {
    max-width: 100%;
  }
  .fff-panel   { padding:0; }
  .fff-choices { grid-template-columns:1fr 1fr; }
  .fff-header  { padding:0 0 6px; min-height:auto; }
  .fff-header h2 { font-size:20px; }
  .fff-header__sub { padding-left:46px; }
  .fff-header__meta { width:100%; align-items:flex-start; }
  .fff-tab-btn, .fff-tab-btn--square { font-size:.78rem; padding:12px 10px; }
  .fff-action-row {
    grid-template-columns:1fr;
    position:sticky;
    bottom:calc(10px + env(safe-area-inset-bottom, 0px));
    z-index:8;
    padding:10px;
    border-radius:20px;
    background:rgba(255,255,255,.86);
    backdrop-filter:blur(10px);
    box-shadow:0 16px 28px rgba(120,89,61,.14);
  }
  .fff-btn { font-size:.9rem; }
  .fff-playing-bar {
    gap:14px;
    margin:14px 0 20px;
    padding:20px 16px;
    min-height:116px;
    font-size:1.25rem;
    flex-direction:column;
    text-align:center;
  }
  .fff-playing-bar__visual {
    gap:12px;
    padding:12px 14px;
  }
  .fff-sound-wave {
    height:28px;
  }
  .fff-question {
    font-size:1.35rem;
    margin:12px 0 22px;
    padding:18px 16px;
  }
}

/* Desktop app pass */
@media (min-width:760px) {
  .fff-lab-kadence-app {
    max-width: 1080px;
  }

  .fff-header {
    padding-bottom: 10px;
    margin-bottom: 12px;
    border-bottom: 1px solid rgba(23,34,43,.08);
  }

  .fff-header h2 {
    font-size: 30px;
    letter-spacing: 0;
  }

  .fff-lab-kadence-app .fff-tabs.lab-tabs {
    gap: 10px;
  }

  .fff-lab-kadence-app .fff-tab-btn.lab-tab,
  .fff-lab-kadence-app .fff-tab-btn--square.lab-tab {
    border-radius: 8px;
    background: #ffffff;
    border: 1px solid rgba(23,34,43,.12);
    color: #52616b;
    min-height: 50px;
    box-shadow: none;
  }

  .fff-lab-kadence-app .fff-tab-btn.lab-tab[aria-selected="true"],
  .fff-lab-kadence-app .fff-tab-btn--square.lab-tab[aria-selected="true"] {
    background: #20384a;
    border-color: #20384a;
    color: #ffffff;
    box-shadow: 0 10px 22px rgba(32,56,74,.18);
  }

  .fff-exercise.lab-workspace {
    display: grid;
    grid-template-columns: minmax(250px, .78fr) minmax(0, 1.5fr);
    grid-template-areas:
      "actions question"
      "playing question"
      "feedback choices"
      "settings choices"
      "notation notation";
    gap: 14px 18px;
    align-items: start;
  }

  .fff-action-row {
    grid-area: actions;
    grid-template-columns: 1fr;
    margin: 0;
    padding: 16px;
    background: #ffffff;
    border: 1px solid rgba(23,34,43,.1);
    border-radius: 8px;
    box-shadow: 0 16px 36px rgba(23,34,43,.08);
  }

  .fff-action-row .fff-btn {
    min-height: 62px;
    border-radius: 8px;
  }

  .fff-action-row .fff-btn-primary {
    min-height: 76px;
    background: #20384a;
    box-shadow: 0 14px 26px rgba(32,56,74,.22);
  }

  .fff-playing-bar {
    grid-area: playing;
    margin: 0;
    border-radius: 8px;
    min-height: 118px;
    box-shadow: 0 16px 36px rgba(23,34,43,.08);
  }

  .fff-question {
    grid-area: question;
    margin: 0;
    border-radius: 8px;
    background: #ffffff;
    border: 1px solid rgba(23,34,43,.1);
    box-shadow: 0 16px 36px rgba(23,34,43,.08);
  }

  .fff-choices-wrapper {
    grid-area: choices;
    min-width: 0;
  }

  .fff-choices {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin: 0;
  }

  .fff-choice-btn {
    min-height: 70px;
    border-radius: 8px;
    background: #ffffff;
    box-shadow: none;
  }

  .fff-choice-btn:hover:not(:disabled) {
    transform: translateY(-1px);
  }

  .fff-feedback {
    grid-area: feedback;
    margin: 0;
    border-radius: 8px;
  }

  .fff-notation-wrap {
    grid-area: notation;
    border-radius: 8px;
  }

  .fff-settings-details {
    grid-area: settings;
  }

  .fff-settings-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 44px;
    padding: 0 12px;
    border: 1px solid rgba(23,34,43,.12);
    border-radius: 8px;
    background: #ffffff;
    color: #17222b;
    font-weight: 900;
    cursor: pointer;
    list-style: none;
  }

  .fff-settings-summary::-webkit-details-marker {
    display: none;
  }

  .fff-settings-summary::after {
    content: "v";
    color: #52616b;
    font-size: .8rem;
  }

  .fff-settings-details[open] .fff-settings-summary::after {
    content: "^";
  }

  .fff-settings-details .fff-settings-bar {
    margin-top: 10px;
    padding: 14px;
    border: 1px solid rgba(23,34,43,.1);
    border-radius: 8px;
    background: #ffffff;
  }

  .fff-stats-bar {
    padding-top: 14px;
  }
}

/* Practice UI refinement, aligned with Intervali and Akordi */
.fff-lab-kadence-app {
  --practice-ink: #24313a;
  --practice-muted: #64717b;
  --practice-line: rgba(36, 49, 58, 0.12);
  --practice-surface: #ffffff;
  --practice-soft: #f6f8f7;
  --practice-accent: #24384d;
  --practice-accent-strong: #162636;
  max-width: 1080px;
}

.fff-header {
  align-items: flex-start;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--practice-line);
  margin-bottom: 14px;
}

.fff-header__title {
  align-items: center;
}

.fff-logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--practice-accent);
  color: #fff;
  font-size: 16px;
  box-shadow: 0 10px 22px rgba(36, 56, 77, 0.16);
}

.fff-header h2,
.fff-lab-kadence-app .lab-app__title {
  color: var(--practice-ink);
  letter-spacing: 0;
}

.fff-header__meta {
  display: flex;
  flex-direction: row;
  align-items: flex-end;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.fff-header__chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
}

.fff-header__chips .lab-chip,
.fff-stats-bar .lab-chip {
  background: var(--practice-soft);
  border-color: var(--practice-line);
  color: var(--practice-muted);
}

.fff-quick-level {
  min-width: min(100%, 220px);
}

.fff-quick-level label {
  display: block;
  margin-bottom: 6px;
  color: var(--practice-muted);
  font-size: 0.8rem;
  font-weight: 800;
}

.fff-quick-level .lab-select {
  width: 100%;
}

.fff-level-badge {
  border-color: var(--practice-line);
  border-radius: 8px;
  background: var(--practice-soft);
}

.fff-level-badge__label,
.fff-xp-text {
  color: var(--practice-muted);
}

.fff-level-badge__num {
  color: var(--practice-ink);
}

.fff-xp-bar {
  background: var(--practice-line);
}

.fff-xp-bar__fill {
  background: var(--practice-accent);
}

.fff-lab-kadence-app .fff-tabs.lab-tabs {
  gap: 8px !important;
  margin: 0 0 14px !important;
}

.fff-lab-kadence-app .fff-tab-btn.lab-tab,
.fff-lab-kadence-app .fff-tab-btn--square.lab-tab {
  border-radius: 8px !important;
  background: var(--practice-surface) !important;
  border: 1px solid var(--practice-line) !important;
  color: var(--practice-muted) !important;
  box-shadow: none !important;
  min-height: var(--lab-btn-h) !important;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.fff-lab-kadence-app .fff-tab-btn.lab-tab:hover,
.fff-lab-kadence-app .fff-tab-btn--square.lab-tab:hover {
  background: #eef2f5 !important;
  border-color: rgba(36, 56, 77, 0.22) !important;
  color: var(--practice-accent-strong) !important;
}

.fff-lab-kadence-app .fff-tab-btn.lab-tab[aria-selected="true"],
.fff-lab-kadence-app .fff-tab-btn--square.lab-tab[aria-selected="true"] {
  background: var(--practice-accent) !important;
  border-color: var(--practice-accent) !important;
  color: #fff !important;
  box-shadow: 0 10px 22px rgba(36, 56, 77, 0.18) !important;
}

.fff-exercise.lab-workspace {
  background: var(--practice-surface);
  border: 1px solid var(--practice-line);
  border-radius: 8px;
  box-shadow: 0 18px 38px rgba(36, 49, 58, 0.08);
  padding: 14px;
}

.fff-action-row.lab-actions {
  background: var(--practice-surface);
  border: 1px solid var(--practice-line);
  border-radius: 8px;
  box-shadow: 0 14px 32px rgba(36, 49, 58, 0.08);
}

.fff-btn {
  border-radius: 8px;
}

.fff-action-row .fff-btn-primary,
.fff-btn-primary {
  background: var(--practice-accent) !important;
  border-color: var(--practice-accent) !important;
  color: #fff !important;
  box-shadow: 0 14px 26px rgba(36, 56, 77, 0.22);
}

.fff-action-row .fff-btn-secondary,
.fff-btn-secondary {
  background: #fff7e8 !important;
  border-color: rgba(186, 126, 31, 0.24) !important;
  color: #7b531b !important;
}

.fff-playing-bar {
  border-radius: 8px;
  border-color: rgba(36, 56, 77, 0.18);
  background: linear-gradient(180deg, rgba(238, 245, 244, 0.92), rgba(255, 255, 255, 0.92));
  box-shadow: 0 16px 34px rgba(36, 56, 77, 0.12);
}

.fff-playing-bar__visual {
  border-color: rgba(36, 56, 77, 0.2);
  box-shadow: none;
}

.fff-dot,
.fff-sound-wave__bar {
  background: var(--practice-accent);
  border-color: var(--practice-accent-strong);
}

.fff-question {
  border-radius: 8px;
  background: var(--practice-soft);
  border: 1px solid var(--practice-line);
  box-shadow: none;
  color: var(--practice-ink);
  letter-spacing: 0;
}

.fff-choice-btn.lab-choice,
.fff-category-card {
  border-radius: 8px;
  background: #fff;
  border-color: var(--practice-line);
  color: var(--practice-ink);
  box-shadow: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.fff-choice-btn.lab-choice:hover:not(:disabled),
.fff-category-card:hover {
  transform: translateY(-1px);
  border-color: rgba(36, 56, 77, 0.32);
  background: #f8fafb;
  color: var(--practice-accent-strong);
  box-shadow: 0 10px 22px rgba(36, 49, 58, 0.08);
}

.fff-category-card.selected {
  border-color: rgba(36, 56, 77, 0.38);
  background: #eef2f5;
  color: var(--practice-accent-strong);
}

.fff-feedback.lab-feedback,
.fff-notation-wrap,
.fff-settings-summary,
.fff-settings-details .fff-settings-bar {
  border-radius: 8px;
  border-color: var(--practice-line);
  box-shadow: none;
}

.fff-settings-summary,
.fff-settings-details .fff-settings-bar {
  background: var(--practice-surface);
}

.fff-settings-group label,
.fff-notation-label {
  color: var(--practice-muted);
}

.fff-settings-group select,
.fff-settings-group input[type=range] {
  border-color: var(--practice-line);
  border-radius: 8px;
  background: #fff;
}

.fff-choice-btn:focus-visible,
.fff-btn:focus-visible,
.fff-tab-btn:focus-visible,
.fff-category-card:focus-visible {
  outline: 3px solid rgba(36, 56, 77, 0.22);
  outline-offset: 2px;
}

@media (min-width:760px) {
  .fff-exercise.lab-workspace {
    display: grid;
    grid-template-columns: minmax(250px, .78fr) minmax(0, 1.5fr);
    grid-template-areas:
      "actions question"
      "playing question"
      "feedback choices"
      "settings choices"
      "notation notation";
    gap: 14px 18px;
    align-items: start;
    padding: 18px;
  }

  .fff-action-row {
    grid-area: actions;
    grid-template-columns: 1fr;
    margin: 0;
    padding: 16px;
  }

  .fff-action-row .fff-btn {
    min-height: 62px;
  }

  .fff-action-row .fff-btn-primary {
    min-height: 76px;
  }

  .fff-playing-bar {
    grid-area: playing;
    margin: 0;
    min-height: 118px;
  }

  .fff-question {
    grid-area: question;
    margin: 0;
  }

  .fff-choices-wrapper {
    grid-area: choices;
    min-width: 0;
  }

  .fff-feedback {
    grid-area: feedback;
    margin: 0;
  }

  .fff-settings-details {
    grid-area: settings;
  }

  .fff-notation-wrap {
    grid-area: notation;
  }
}

@media (max-width:600px) {
  .fff-header {
    gap: 12px;
  }

  .fff-header__meta,
  .fff-header__chips,
  .fff-quick-level {
    width: 100%;
    justify-content: stretch;
  }

  .fff-action-row.lab-actions {
    border-radius: 12px;
  }

  .fff-exercise.lab-workspace {
    padding: 14px;
  }

  .fff-choice-btn.lab-choice {
    min-height: 70px;
  }
}

/* UI/UX renewal 2026-08-11: practice first, configuration second. */
body.fff-is-app-page {
  overflow-x: clip;
}

.fff-lab-kadence-app {
  --practice-ink: #24313a;
  --practice-muted: #64717b;
  --practice-line: rgba(36, 49, 58, 0.14);
  --practice-surface: #ffffff;
  --practice-soft: #f6f8f7;
  --practice-accent: #24384d;
  --practice-accent-strong: #162636;
  max-width: 920px;
  padding-bottom: 112px;
}

.fff-lab-kadence-app .fff-header {
  border-bottom-color: var(--practice-line);
}

.fff-lab-kadence-app .fff-header__chips [data-meta="difficulty"] {
  display: none;
}

.fff-lab-kadence-app .fff-level-badge {
  border-color: var(--practice-line);
  background: var(--practice-soft);
}

.fff-lab-kadence-app .fff-level-badge__label,
.fff-lab-kadence-app .fff-xp-text {
  color: var(--practice-muted);
}

.fff-lab-kadence-app .fff-tabs.lab-tabs,
.fff-lab-kadence-app .fff-tab-btn.lab-tab {
  border-radius: 10px;
}

.fff-lab-kadence-app .fff-tab-btn.lab-tab {
  background: var(--practice-surface);
  border-color: var(--practice-line);
  color: var(--practice-muted);
}

.fff-lab-kadence-app .fff-tab-btn.lab-tab[aria-selected="true"] {
  background: var(--practice-accent);
  border-color: var(--practice-accent);
  box-shadow: 0 8px 18px rgba(36, 56, 77, 0.16);
}

.fff-lab-kadence-app .fff-tab-btn--utility {
  flex: 0 0 auto;
  min-width: 132px;
  opacity: 0.78;
  font-size: 0.84rem;
}

.fff-lab-kadence-app .fff-tab-btn--utility[aria-selected="true"] {
  background: var(--practice-soft);
  border-color: var(--practice-line);
  color: var(--practice-accent-strong);
  box-shadow: none;
}

.fff-lab-kadence-app .fff-exercise.lab-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "playing"
    "question"
    "choices"
    "feedback"
    "actions"
    "notation"
    "settings";
  gap: 12px;
  padding: 14px;
  background: var(--practice-surface);
  border: 1px solid var(--practice-line);
  border-radius: 12px;
  box-shadow: none;
}

.fff-lab-kadence-app .fff-playing-bar {
  grid-area: playing;
  margin: 0;
  min-height: 96px;
  border-color: var(--practice-line);
  border-radius: 10px;
  box-shadow: none;
}

.fff-lab-kadence-app .fff-question {
  grid-area: question;
  margin: 0;
  border-color: var(--practice-line);
  border-radius: 10px;
  background: var(--practice-soft);
  box-shadow: none;
}

.fff-lab-kadence-app .fff-choices-wrapper {
  grid-area: choices;
  min-width: 0;
}

.fff-lab-kadence-app .fff-choice-btn.lab-choice {
  min-height: 64px;
  border-radius: 10px;
  border-color: var(--practice-line);
  background: var(--practice-surface);
  color: var(--practice-ink);
}

.fff-lab-kadence-app .fff-feedback {
  grid-area: feedback;
  margin: 0;
  border-radius: 10px;
  box-shadow: none;
}

.fff-lab-kadence-app .fff-action-row {
  grid-area: actions;
  margin: 0;
}

.fff-lab-kadence-app .fff-notation-wrap {
  grid-area: notation;
  border-radius: 10px;
  border-color: var(--practice-line);
  box-shadow: none;
}

.fff-lab-kadence-app .fff-settings-details {
  grid-area: settings;
}

.fff-lab-kadence-app .fff-settings-summary::after {
  content: "▾";
}

.fff-lab-kadence-app .fff-settings-details[open] .fff-settings-summary::after {
  content: "▴";
}

.fff-lab-kadence-app .fff-stats-bar {
  gap: 8px;
  padding-top: 4px;
}

@media (max-width: 759px) {
  .fff-lab-kadence-app .fff-action-row {
    position: sticky;
    bottom: calc(96px + env(safe-area-inset-bottom, 0px));
    z-index: 8;
    padding: 10px;
    border: 1px solid var(--practice-line);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 14px 28px rgba(36, 49, 58, 0.12);
  }

  .fff-lab-kadence-app {
    scroll-padding-bottom: calc(112px + env(safe-area-inset-bottom, 0px));
  }

  .fff-lab-kadence-app .fff-choice-btn,
  .fff-lab-kadence-app .fff-feedback,
  .fff-lab-kadence-app .fff-action-row {
    scroll-margin-bottom: calc(112px + env(safe-area-inset-bottom, 0px));
  }
}

@media (min-width: 760px) {
  body.fff-is-app-page .entry-content.wp-block-post-content {
    box-sizing: border-box;
    width: calc(100% - 46px);
    max-width: none;
    margin-inline: auto;
  }
}

/* Categories are a secondary exercise setting, not a third exercise mode. */
.fff-lab-kadence-app .fff-tab-btn--utility {
  display: none !important;
}

.fff-lab-kadence-app .fff-settings-categories {
  margin-top: 10px;
}

.fff-lab-kadence-app .fff-panel--utility > .fff-btn:first-child {
  margin-bottom: 12px;
}