/* ═══════════════════════════════════════════════
   LinkUp — Game Styles
   ═══════════════════════════════════════════════ */

.menu { display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;gap:18px; }
.menu-title { font-size:clamp(38px,10vw,56px);font-weight:700;letter-spacing:4px;color:var(--navy); }
.menu-sub { font-size:14px;font-weight:300;color:var(--text-dim);letter-spacing:1.5px; }
.menu-how { max-width:380px;text-align:center;font-size:13px;font-weight:400;line-height:1.7;color:var(--text-mid);padding:16px 20px;border-radius:var(--radius-md);background:var(--bg-subtle);border:1px solid var(--border); }
.menu-start { padding:16px 40px;border-radius:var(--radius-md);border:none;background:var(--navy);color:var(--white);font-size:14px;font-weight:700;letter-spacing:2.5px;cursor:pointer;font-family:var(--font);transition:all var(--transition);box-shadow:var(--shadow-md);margin-top:8px; }
.menu-start:hover { opacity:.88;transform:translateY(-2px); }

.game { display:none;flex-direction:column;align-items:center;width:100%;max-width:500px;flex:1; }
.game.active { display:flex; }

/* Solved groups */
.lu-solved { width:100%;display:flex;flex-direction:column;gap:6px;padding:0 0 8px; }
.lu-group {
  border-radius:var(--radius-md);padding:14px 16px;text-align:center;
  animation:pop .4s ease;
}
.lu-group-name { font-size:12px;font-weight:700;letter-spacing:2px;margin-bottom:4px; }
.lu-group-words { font-size:13px;font-weight:500;letter-spacing:.5px; }
.lu-group--0 { background:#f3df6b;color:#5a4e00; }
.lu-group--1 { background:#a0d468;color:#2d5016; }
.lu-group--2 { background:#7ec8e3;color:#0d4a63; }
.lu-group--3 { background:#b49fdc;color:#3b2469; }

/* Word grid */
.lu-grid { display:grid;grid-template-columns:repeat(4,1fr);gap:6px;width:100%;padding:4px 0; }
.lu-word {
  padding:16px 8px;border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;
  text-align:center;
  font-size:clamp(12px,3.2vw,15px);font-weight:700;
  letter-spacing:.5px;text-transform:uppercase;
  background:var(--bg-surface);color:var(--navy);
  cursor:pointer;transition:all .12s;user-select:none;
  min-height:52px;word-break:break-word;
  line-height:1.2;
}
.lu-word:hover { background:#d8d8e2; }
.lu-word--selected { background:var(--navy);color:var(--white); }
.lu-word--wrong { background:var(--error);color:var(--white);animation:shake .4s ease; }

/* Controls */
.lu-controls { display:flex;gap:10px;padding:14px 0;align-items:center;flex-wrap:wrap;justify-content:center; }
.lu-btn {
  padding:12px 24px;border-radius:var(--radius-md);
  font-size:13px;font-weight:700;letter-spacing:1.5px;
  cursor:pointer;font-family:var(--font);transition:all var(--transition);
}
.lu-btn--submit { border:none;background:var(--navy);color:var(--white); }
.lu-btn--submit:disabled { opacity:.3;cursor:default; }
.lu-btn--submit:not(:disabled):hover { opacity:.88; }
.lu-btn--deselect { border:2px solid var(--border);background:var(--bg);color:var(--navy); }
.lu-btn--deselect:hover { background:var(--bg-subtle); }
.lu-btn--shuffle { border:2px solid var(--border);background:var(--bg);color:var(--navy); }
.lu-btn--shuffle:hover { background:var(--bg-subtle); }

/* Mistakes */
.lu-mistakes { display:flex;gap:6px;align-items:center;padding:4px 0 8px; }
.lu-mistakes-label { font-size:12px;font-weight:500;color:var(--text-dim);letter-spacing:1px; }
.lu-dot { width:14px;height:14px;border-radius:50%;background:var(--navy);transition:opacity .2s; }
.lu-dot--used { opacity:.15; }

/* Footer */
.game-footer { display:flex;gap:18px;padding:10px 0 4px; }
.foot-btn { background:none;border:none;color:var(--text-mid);font-size:16px;font-weight:600;cursor:pointer;font-family:var(--font);padding:10px 14px; }
.foot-btn:hover { color:var(--navy); }

/* Win / Lose */
.lu-result-card {
  background:var(--bg);border-radius:var(--radius-lg);padding:36px 44px;text-align:center;
  border:1.5px solid var(--border);box-shadow:0 12px 40px rgba(45,50,112,.12);animation:pop .45s ease;
  max-width:400px;
}
.lu-result-icon { font-size:48px;margin-bottom:12px; }
.lu-result-title { font-size:24px;font-weight:700;letter-spacing:3px;color:var(--navy);margin-bottom:16px; }
.lu-result-groups { text-align:left;margin-bottom:20px; }
.lu-result-group { margin-bottom:8px; }
.lu-result-gname { font-size:11px;font-weight:700;letter-spacing:1.5px;color:var(--text-dim); }
.lu-result-gwords { font-size:13px;font-weight:500;color:var(--navy); }
.win-btn { display:block;width:100%;padding:14px 0;border-radius:var(--radius-md);border:none;background:var(--navy);color:var(--white);font-size:13px;font-weight:700;letter-spacing:2px;cursor:pointer;font-family:var(--font);margin-bottom:8px; }
.win-btn--sec { background:var(--bg);border:1.5px solid var(--border);color:var(--text-dim);font-size:12px; }

@keyframes pop{0%{transform:scale(.85);opacity:0}60%{transform:scale(1.05)}100%{transform:scale(1);opacity:1}}
@keyframes shake{0%,100%{transform:translateX(0)}15%{transform:translateX(-5px)}30%{transform:translateX(5px)}45%{transform:translateX(-4px)}60%{transform:translateX(3px)}75%{transform:translateX(-2px)}}