/* FingerFlow Trainer v3.7
   EXACT 3-row layout — total height ~570px on desktop
   ┌─────────────────────────────────┐  ← Row 1  ~142px (25%)
   │  Stats bar  38px                │
   │  Timer bar   3px                │
   │  Game area 100px (1 key/word)   │
   ├─────────────────────────────────┤  ← Row 2  ~220px (40%)
   │  Full-width keyboard            │
   ├─────────────────────────────────┤  ← Row 3  ~190px (35%)
   │  Left hand    Right hand        │
   │  (side-by-side, full width)     │
   │  legend strip                   │
   └─────────────────────────────────┘
*/

/* ── CSS vars (PHP overrides these in <head>) ─────────── */
:root {
  --c-primary:#3b5bdb; --c-primary-dark:#2f4ac7; --c-primary-light:#4c6ef5;
  --c-primary-faint:#eef1ff; --c-primary-rgb:59,91,219;
  --c-stat-1:#3b5bdb; --c-stat-2:#2f9e44; --c-stat-3:#e03131; --c-stat-4:#1971c2;
  --c-bg:#eef1ff; --c-surface:#ffffff; --c-border:#d0d9f0;
  --c-shadow:rgba(59,91,219,.12); --c-text:#1a1f36; --c-text-sub:#4b5280;
  --c-text-muted:#8891b0; --c-pending:#a0aac8;
  --c-correct:#1a1f36; --c-incorrect:#e03131; --c-cursor:#3b5bdb;
  --f-pinky:#9c36b5; --f-ring:#0ca678; --f-middle:#f76707;
  --f-index:#e03131; --f-thumb:#868e96;
  --r:10px; --rs:6px;
}

/* ══════════════════════════════════════
   LESSON CARD
══════════════════════════════════════ */
.fft-card {
  background:var(--c-surface); border:1.5px solid var(--c-border);
  border-radius:var(--r); padding:22px 20px 18px;
  display:flex; flex-direction:column;
  box-shadow:0 2px 10px var(--c-shadow);
  position:relative; overflow:hidden;
  transition:box-shadow .15s,transform .15s; font-family:inherit;
}
.fft-card:hover { box-shadow:0 5px 22px var(--c-shadow); transform:translateY(-2px); }
.fft-card--featured { border-color:var(--c-primary); border-width:2px; }
.fft-card.is-locked::after { content:'';position:absolute;inset:0;background:rgba(255,255,255,.65);z-index:5; }
.fft-card.is-locked .fft-cta { opacity:.35;cursor:not-allowed; }
.fft-card.is-locked .fft-lock-msg { display:block; }
.fft-card-topbar { display:flex;justify-content:space-between;align-items:center;margin-bottom:10px; }
.fft-lesson-num { font-size:.7rem;font-weight:700;color:var(--c-primary);background:var(--c-primary-faint);border:1px solid var(--c-border);padding:2px 9px;border-radius:50px;letter-spacing:.04em;text-transform:uppercase; }
.fft-card-status-icon { font-size:1.05rem; }
.fft-card-icon { font-size:38px;margin-bottom:9px;display:block;line-height:1; }
.fft-card-title { font-size:1.25rem;font-weight:800;color:var(--c-text);margin:0 0 3px;letter-spacing:-.02em; }
.fft-card-subtitle { font-size:.81rem;color:var(--c-text-sub);font-style:italic;margin:0 0 13px; }
.fft-card-specs { list-style:none;padding:0;margin:0 0 14px;display:flex;flex-direction:column;gap:4px; }
.fft-card-specs li { background:var(--c-bg);border-radius:var(--rs);padding:7px 11px;display:flex;justify-content:space-between;font-size:.82rem; }
.fft-spec-label { color:var(--c-text-sub); }
.fft-spec-value { font-weight:700;color:var(--c-text); }
.fft-cta { display:inline-block;background:var(--c-primary);color:#fff;border:none;border-radius:50px;padding:8px 22px;font-size:.85rem;font-weight:600;cursor:pointer;transition:opacity .15s,transform .15s;text-decoration:none;position:relative;z-index:6; }
.fft-cta:hover { opacity:.88;transform:translateY(-1px);color:#fff; }
.fft-lock-msg { display:none;font-size:.75rem;color:var(--c-text-muted);margin-top:5px; }


/* ══════════════════════════════════════
   TRAINER SHELL
══════════════════════════════════════ */
.fft-trainer {
  background:var(--c-surface);
  border:1.5px solid var(--c-border);
  border-radius:var(--r);
  overflow:hidden;
  font-family:inherit;
  display:flex;
  flex-direction:column;
}


/* ══════════════════════════════════════
   ROW 1a — STATS BAR  (~38px)
══════════════════════════════════════ */
.fft-trainer-bar {
  display:flex; justify-content:space-between; align-items:center; gap:8px;
  background:var(--c-bg); border-bottom:1px solid var(--c-border);
  padding:6px 16px; flex-shrink:0;
}
.fft-trainer-info { min-width:0; overflow:hidden; }
.fft-trainer-name { font-weight:700;font-size:.82rem;color:var(--c-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.2; }
.fft-trainer-meta { font-size:.65rem;color:var(--c-text-muted);white-space:nowrap; }
.fft-stats-row { display:flex;gap:14px;flex-shrink:0; }
.fft-stat { text-align:center;min-width:32px; }
.fft-sv { font-size:.9rem;font-weight:800;line-height:1; }
.fft-sl { font-size:.52rem;color:var(--c-text-muted);text-transform:uppercase;letter-spacing:.05em;margin-top:1px; }
.fft-stat:nth-child(1) .fft-sv { color:var(--c-stat-1); }
.fft-stat:nth-child(2) .fft-sv { color:var(--c-stat-2); }
.fft-stat:nth-child(3) .fft-sv { color:var(--c-text-muted); }
.fft-stat:nth-child(4) .fft-sv { color:var(--c-stat-4); }

/* ROW 1b — TIMER BAR  (3px) */
.fft-pbar { height:3px;background:var(--c-border);flex-shrink:0; }
.fft-pbar-fill { height:100%;width:100%;background:var(--c-primary);opacity:.65;transition:width 1s linear; }
.fft-pbar-fill.low { background:var(--c-incorrect);opacity:.9; }

/* ROW 1c — GAME AREA  (100px exact) */
.fft-game-area {
  height:100px;
  flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
  background:var(--c-bg);
  border-bottom:1px solid var(--c-border);
  position:relative;
  overflow:hidden;
}

/* KEY MODE — big single letter */
.fft-keys-area { text-align:center; }
.fft-target {
  font-size:4.5rem; font-weight:900; line-height:1;
  letter-spacing:-.03em; display:block;
  transition:color .07s,transform .08s;
  color:var(--c-text);
}
.fft-target.hit  { animation:fft-pop .15s; }
.fft-target.miss { animation:fft-shake .22s; color:var(--c-incorrect)!important; }
.fft-target[data-finger="pinky"]  { color:var(--f-pinky); }
.fft-target[data-finger="ring"]   { color:var(--f-ring); }
.fft-target[data-finger="middle"] { color:var(--f-middle); }
.fft-target[data-finger="index"]  { color:var(--f-index); }
.fft-target[data-finger="thumb"]  { color:var(--f-thumb); }
.fft-finger-hint { font-size:.72rem;color:var(--c-text-muted);margin-top:3px;font-weight:600;text-transform:capitalize; }

/* WORD MODE — one word at a time, big centered */
.fft-word-stage {
  text-align:center; padding:0 20px; width:100%;
}
.fft-word-big {
  font-size:2.4rem; font-weight:900; font-family:'Courier New',monospace;
  letter-spacing:.08em; line-height:1; display:block;
  color:var(--c-text); transition:color .08s,transform .08s;
  margin-bottom:6px;
}
.fft-word-big.correct { color:var(--c-stat-2); animation:fft-pop .15s; }
.fft-word-big.wrong   { color:var(--c-incorrect); animation:fft-shake .2s; }
.fft-word-typed {
  /* show what user typed character by character */
  font-size:.95rem; font-family:'Courier New',monospace; font-weight:700;
  letter-spacing:.1em; display:block; min-height:1.2em;
  color:var(--c-primary); opacity:.85;
}
/* hidden input captures keystrokes */
.fft-word-input-hidden {
  position:absolute; opacity:0; width:1px; height:1px;
  pointer-events:none; top:50%; left:50%;
}

/* RESULT overlay */
.fft-result {
  position:absolute; inset:0;
  background:rgba(255,255,255,.95); backdrop-filter:blur(3px);
  display:flex; align-items:center; justify-content:center;
  z-index:20; animation:fft-fade .18s;
}
.fft-result-box {
  background:var(--c-surface); border:1.5px solid var(--c-border);
  border-radius:var(--r); padding:16px 20px; width:340px;
  max-width:calc(100% - 20px); text-align:center;
  box-shadow:0 6px 24px var(--c-shadow); animation:fft-up .2s;
}
.fft-result-emoji { font-size:1.6rem;margin-bottom:3px; }
.fft-result-title { font-size:.93rem;font-weight:800;color:var(--c-text);margin:0 0 10px; }
.fft-result-grid  { display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-bottom:9px; }
.fft-rg { background:var(--c-bg);border-radius:var(--rs);padding:8px 6px; }
.fft-rv { font-size:1.05rem;font-weight:800;color:var(--c-primary); }
.fft-rl { font-size:.57rem;color:var(--c-text-muted);text-transform:uppercase;margin-top:2px; }
.fft-pass-chip { border-radius:var(--rs);padding:5px 10px;font-size:.76rem;font-weight:600;margin-bottom:9px; }
.fft-pass-chip.pass { background:#f0fdf4;color:#15803d;border:1px solid #bbf7d0; }
.fft-pass-chip.fail { background:#fef2f2;color:var(--c-incorrect);border:1px solid #fecaca; }
.fft-result-actions { display:flex;gap:7px;justify-content:center;flex-wrap:wrap; }
.fft-login-nudge { font-size:.69rem;color:var(--c-text-muted);margin:7px 0 0; }
.fft-btn { padding:6px 14px;border-radius:var(--rs);border:1.5px solid var(--c-border);background:var(--c-surface);color:var(--c-text);font-size:.79rem;font-weight:600;cursor:pointer;transition:.15s; }
.fft-btn:hover { border-color:var(--c-primary);color:var(--c-primary); }
.fft-btn-primary { background:var(--c-primary);border-color:var(--c-primary);color:#fff; }
.fft-btn-primary:hover { background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff; }


/* ══════════════════════════════════════
   ROW 2 — KEYBOARD  (~220px, 40%)
   Full width, centered keys
══════════════════════════════════════ */
.fft-kb-row-outer {
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  padding:14px 12px 16px;
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
}
.fft-kb     { display:flex;flex-direction:column;gap:5px; }
.fft-kb-row { display:flex;justify-content:center;gap:4px; }

.fft-k {
  width:40px; height:40px;
  border:1.5px solid var(--c-border); border-bottom:3px solid var(--c-border);
  border-radius:6px; display:flex; align-items:center; justify-content:center;
  font-size:.76rem; font-weight:700;
  background:var(--c-surface); color:var(--c-text-muted);
  transition:.1s; user-select:none; cursor:default;
}
.fft-k-space { width:200px; }

/* Finger tints */
.fft-k[data-f="pinky"]  { background:rgba(156,54,181,.07); border-color:rgba(156,54,181,.3);  color:var(--f-pinky); }
.fft-k[data-f="ring"]   { background:rgba(12,166,120,.07);  border-color:rgba(12,166,120,.3);  color:var(--f-ring); }
.fft-k[data-f="middle"] { background:rgba(247,103,7,.07);   border-color:rgba(247,103,7,.3);   color:var(--f-middle); }
.fft-k[data-f="index"]  { background:rgba(224,49,49,.07);   border-color:rgba(224,49,49,.3);   color:var(--f-index); }
.fft-k[data-f="thumb"]  { background:rgba(134,142,150,.07); border-color:rgba(134,142,150,.3); color:var(--f-thumb); }

/* Active key — full finger colour */
.fft-k.on { transform:translateY(2px); color:#fff!important; border-bottom-width:1px; }
.fft-k.on[data-f="pinky"]  { background:var(--f-pinky);  border-color:var(--f-pinky);  box-shadow:0 0 0 3px rgba(156,54,181,.2); }
.fft-k.on[data-f="ring"]   { background:var(--f-ring);   border-color:var(--f-ring);   box-shadow:0 0 0 3px rgba(12,166,120,.2); }
.fft-k.on[data-f="middle"] { background:var(--f-middle); border-color:var(--f-middle); box-shadow:0 0 0 3px rgba(247,103,7,.2); }
.fft-k.on[data-f="index"]  { background:var(--f-index);  border-color:var(--f-index);  box-shadow:0 0 0 3px rgba(224,49,49,.2); }
.fft-k.on[data-f="thumb"]  { background:var(--f-thumb);  border-color:var(--f-thumb);  box-shadow:0 0 0 3px rgba(134,142,150,.2); }
.fft-k.on:not([data-f])    { background:var(--c-primary);border-color:var(--c-primary); }
.fft-k.err { border-color:var(--c-incorrect)!important;color:var(--c-incorrect)!important;animation:fft-shake .2s; }


/* ══════════════════════════════════════
   ROW 3 — HANDS  (~190px, 35%)
   Both hands side-by-side, full width
══════════════════════════════════════ */
.fft-hands-row {
  background:var(--c-bg);
  padding:12px 20px 8px;
  display:flex;
  align-items:flex-end;
  justify-content:center;
  gap:60px;            /* gap between left and right hand groups */
  flex-shrink:0;
}
.fft-hand-group {
  display:flex; flex-direction:column; align-items:center; gap:5px;
}
.fft-hand-label {
  font-size:.6rem; font-weight:700; color:var(--c-text-muted);
  text-transform:uppercase; letter-spacing:.08em;
}
.fft-hand { display:flex; gap:6px; align-items:flex-end; }

/* Individual finger */
.fft-finger {
  width:28px;
  border:2px solid;
  border-radius:9px 9px 4px 4px;
  display:flex; align-items:flex-start; justify-content:center;
  padding-top:5px;
  transition:transform .14s, box-shadow .14s, background .08s, border-color .08s;
  cursor:default;
}
.fft-finger span { font-size:.5rem;font-weight:700;opacity:.8;text-transform:uppercase;line-height:1; }

/* Heights — compact so row 3 stays ~190px */
.f-pinky  { height:58px; }
.f-ring   { height:74px; }
.f-middle { height:86px; }
.f-index  { height:74px; }
.f-thumb  { height:48px; width:34px; border-radius:9px 4px 4px 9px; }
.fft-rh .f-thumb { border-radius:4px 9px 9px 4px; }

/* Resting tints */
.f-pinky  { background:rgba(156,54,181,.1);  border-color:rgba(156,54,181,.32); }
.f-ring   { background:rgba(12,166,120,.1);  border-color:rgba(12,166,120,.32); }
.f-middle { background:rgba(247,103,7,.1);   border-color:rgba(247,103,7,.32);  }
.f-index  { background:rgba(224,49,49,.1);   border-color:rgba(224,49,49,.32);  }
.f-thumb  { background:rgba(134,142,150,.1); border-color:rgba(134,142,150,.32);}
.f-pinky  span { color:var(--f-pinky); }
.f-ring   span { color:var(--f-ring);  }
.f-middle span { color:var(--f-middle);}
.f-index  span { color:var(--f-index); }
.f-thumb  span { color:var(--f-thumb); }

/* Active — lift with full colour */
.f-pinky.up  { background:var(--f-pinky);  border-color:var(--f-pinky);  transform:translateY(-13px); box-shadow:0 4px 12px rgba(156,54,181,.38); }
.f-ring.up   { background:var(--f-ring);   border-color:var(--f-ring);   transform:translateY(-13px); box-shadow:0 4px 12px rgba(12,166,120,.38);  }
.f-middle.up { background:var(--f-middle); border-color:var(--f-middle); transform:translateY(-13px); box-shadow:0 4px 12px rgba(247,103,7,.38);   }
.f-index.up  { background:var(--f-index);  border-color:var(--f-index);  transform:translateY(-13px); box-shadow:0 4px 12px rgba(224,49,49,.38);   }
.f-thumb.up  { background:var(--f-thumb);  border-color:var(--f-thumb);  transform:translateY(-9px);  box-shadow:0 4px 12px rgba(134,142,150,.38); }
.fft-finger.up span { color:#fff; opacity:1; }
.fft-finger.tap { transform:translateY(3px)!important; filter:brightness(.82); box-shadow:none!important; }

/* Colour legend strip */
.fft-legend-strip {
  background:var(--c-bg);
  border-top:1px solid var(--c-border);
  padding:5px 16px 8px;
  display:flex; gap:6px 12px; flex-wrap:wrap; justify-content:center;
  flex-shrink:0;
}
.fft-leg {
  font-size:.56rem; font-weight:600; color:var(--c-text-muted);
  display:flex; align-items:center; gap:3px;
}
.fft-leg::before { content:''; width:7px; height:7px; border-radius:50%; flex-shrink:0; }
.fft-leg--pinky::before  { background:var(--f-pinky);  }
.fft-leg--ring::before   { background:var(--f-ring);   }
.fft-leg--middle::before { background:var(--f-middle); }
.fft-leg--index::before  { background:var(--f-index);  }
.fft-leg--thumb::before  { background:var(--f-thumb);  }


/* ══════════════════════════════════════
   DASHBOARD (unchanged styling)
══════════════════════════════════════ */
.fft-dash { font-family:inherit;display:flex;flex-direction:column;gap:14px; }
.fft-dash-login { text-align:center;padding:40px 16px;background:var(--c-bg);border:1.5px solid var(--c-border);border-radius:var(--r);color:var(--c-text-muted); }
.fft-dash-login-icon { font-size:2rem;margin-bottom:7px; }
.fft-dash-kpis { display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px; }
.fft-kpi-card { background:var(--c-surface);border:1.5px solid var(--c-border);border-radius:var(--r);padding:14px 10px;text-align:center; }
.fft-kpi-val  { font-size:1.35rem;font-weight:800;line-height:1; }
.fft-kpi-lbl  { font-size:.68rem;color:var(--c-text-muted);margin-top:4px;text-transform:uppercase;letter-spacing:.04em; }
.fft-kpi-card:nth-child(1) .fft-kpi-val { color:var(--c-stat-1); }
.fft-kpi-card:nth-child(2) .fft-kpi-val { color:var(--c-stat-2); }
.fft-kpi-card:nth-child(3) .fft-kpi-val { color:var(--c-stat-4); }
.fft-kpi-card:nth-child(4) .fft-kpi-val { color:var(--c-primary); }
.fft-course-progress { background:var(--c-surface);border:1.5px solid var(--c-border);border-radius:var(--r);padding:13px 16px; }
.fft-cp-header { display:flex;justify-content:space-between;font-size:.8rem;font-weight:600;color:var(--c-text-sub);margin-bottom:8px; }
.fft-cp-count  { color:var(--c-primary);font-weight:700; }
.fft-cp-bar    { background:var(--c-bg);border-radius:50px;height:7px;overflow:hidden; }
.fft-cp-fill   { height:100%;background:var(--c-primary);border-radius:50px;opacity:.7;transition:width .6s; }
.fft-chart-section { background:var(--c-surface);border:1.5px solid var(--c-border);border-radius:var(--r);padding:13px 16px; }
.fft-chart-header  { font-size:.76rem;font-weight:700;color:var(--c-text-sub);margin-bottom:11px;text-transform:uppercase;letter-spacing:.05em; }
.fft-chart { display:flex;gap:3px;align-items:flex-end;height:76px; }
.fft-bar-col   { flex:1;display:flex;flex-direction:column;align-items:center;gap:3px; }
.fft-bar-inner { flex:1;width:100%;display:flex;align-items:flex-end; }
.fft-bar       { width:100%;background:var(--c-primary);opacity:.6;border-radius:3px 3px 0 0;min-height:2px;transition:height .4s; }
.fft-bar-date  { font-size:.52rem;color:var(--c-text-muted);white-space:nowrap; }
.fft-lesson-table-wrap { background:var(--c-surface);border:1.5px solid var(--c-border);border-radius:var(--r);padding:13px 16px; }
.fft-lesson-table { width:100%;border-collapse:collapse;font-size:.81rem; }
.fft-lesson-table th { font-size:.66rem;color:var(--c-text-muted);text-transform:uppercase;letter-spacing:.04em;padding:5px 7px;text-align:left;border-bottom:1px solid var(--c-border); }
.fft-lesson-table td { padding:6px 7px;border-bottom:1px solid var(--c-bg);color:var(--c-text); }
.fft-lesson-table tr:last-child td { border-bottom:none; }
.fft-status-done { color:#15803d;font-size:.75rem;font-weight:600; }
.fft-status-pend { color:#d97706;font-size:.75rem; }
.fft-lesson-path { background:var(--c-surface);border:1.5px solid var(--c-border);border-radius:var(--r);padding:13px 16px;overflow-x:auto; }
.fft-lp-track { display:flex;align-items:center;min-width:max-content; }
.fft-lp-node  { display:flex;flex-direction:column;align-items:center;gap:3px;min-width:48px; }
.fft-lp-circle { width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.76rem;font-weight:700;border:2px solid var(--c-border);background:var(--c-bg);color:var(--c-text-muted);transition:.15s; }
.fft-lp-node.done   .fft-lp-circle { background:var(--c-primary);border-color:var(--c-primary);color:#fff; }
.fft-lp-node.active .fft-lp-circle { border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-faint);box-shadow:0 0 0 3px rgba(var(--c-primary-rgb),.12); }
.fft-lp-label     { font-size:.6rem;color:var(--c-text-muted); }
.fft-lp-connector { flex:1;height:2px;background:var(--c-border);min-width:14px;margin-bottom:18px; }
.fft-lp-connector.done { background:var(--c-primary);opacity:.45; }


/* ══════════════════════════════════════
   ANIMATIONS
══════════════════════════════════════ */
@keyframes fft-shake { 0%,100%{transform:none} 25%{transform:translateX(-5px)} 75%{transform:translateX(5px)} }
@keyframes fft-fade  { from{opacity:0} to{opacity:1} }
@keyframes fft-up    { from{transform:translateY(10px);opacity:0} to{transform:none;opacity:1} }
@keyframes fft-pop   { 0%,100%{transform:scale(1)} 50%{transform:scale(1.15)} }

/* ══════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════ */
@media (max-width:540px) {
  .fft-k { width:30px;height:30px;font-size:.65rem; }
  .fft-k-space { width:140px; }
  .fft-target   { font-size:3.4rem; }
  .fft-word-big { font-size:1.9rem; }
  .fft-hands-row { gap:30px;padding:10px 10px 6px; }
  .fft-finger { width:22px; }
  .f-pinky  { height:46px; } .f-ring   { height:58px; }
  .f-middle { height:68px; } .f-index  { height:58px; }
  .f-thumb  { height:38px; }
}
