/* =========================
MAMUTH – THEME CLEAN (Fondo Bianco)
========================= */
:root{
  --bg-body: #ffffff;
  --bg-panel: #ffffff;
  --bg-soft: #f8f9fa;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --accent: #5b55e8;
  --primary: #f6a43b;
  --text: #1a2240;
  --muted: #6c757d;
  --tile: clamp(80px, 11vw, 130px);
  --gap: 10px;
  --radius: 16px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }

body{
  margin:0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg-body);
  padding-top: 70px;
  padding-bottom: 60px;
}

/* --- HEADER & FOOTER FISSI --- */
.app-header{
  position: fixed; top: 0; left: 0; right: 0;
  height: 60px;
  background: #fff;
  border-bottom: 1px solid #eee;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.app-footer{
  position: fixed; bottom: 0; left: 0; right: 0;
  height: 50px;
  background: #fff;
  border-top: 1px solid #eee;
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
  font-size: 13px; color: var(--muted);
  text-align: center; padding: 0 10px;
}
.brand{ font-weight: 900; color: var(--accent); font-size: 20px; }
.header-right{ display: flex; gap: 15px; align-items: center; }
.stat-badge{ font-weight: 700; color: var(--text); background: #f0f2ff; padding: 4px 12px; border-radius: 20px; font-size: 14px; }
.icon-btn{ background: none; border: none; font-size: 20px; cursor: pointer; padding: 5px; color: var(--text); }
.footer-content{ max-width: 600px; }

/* --- LAYOUT BASE --- */
.mamuth-app{ min-height:100vh; display:flex; align-items:center; justify-content:center; padding: 20px; }
.view{ display:none; width:100%; max-width: 980px; margin: 0 auto; }
.card{
  background: var(--bg-panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  border: 1px solid #eee;
}
h1,h2{ margin:0 0 14px 0; }
.muted{ color: var(--muted); }
.row{ display:flex; gap:14px; flex-wrap:wrap; align-items:center; }

/* --- FORM LOGIN CORRETTO --- */
.form-group{
  margin-bottom: 16px;
  width: 100%;
}
.form-group label{
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  color: var(--text);
}
.form-group input{
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 2px solid #e0e0e0;
  outline: none;
  font-size: 15px;
  transition: border-color 0.2s;
}
.form-group input:focus{
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91,85,232,0.1);
}
.form-row{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.check{
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 14px 0;
  font-weight: 500;
}
.check input{
  width: auto;
}

/* --- BOTTONI --- */
button{
  border:0; border-radius: 14px; padding: 12px 18px;
  font-weight: 700; cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
}
button:disabled{ opacity:.45; cursor:not-allowed; }
.btn-primary{
  background: var(--primary) !important; color:#fff !important;
  box-shadow: 0 4px 12px rgba(246,164,59,.3);
}
.btn-primary:hover{ transform: translateY(-2px); }
.btn-ghost{
  background:#fff !important; border: 2px solid #eee !important; color: var(--text);
}
.btn-ghost:hover{ border-color: var(--accent); }
.btn-danger{
  background: #ff4d4d !important; color:#fff !important;
}

/* --- TILE AUTORI --- */
.authors-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 16px;
}
.author-tile{
  aspect-ratio: 1;
  border-radius: var(--radius);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: #fff;
  border: 2px solid #eee;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform 0.2s, border-color 0.2s;
}
.author-tile:hover{ transform: translateY(-3px); border-color: var(--accent); }
.author-tile.selected{ border-color: var(--accent); background: #f0f2ff; }
.author-avatar{
  width: 50px; height: 50px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; font-weight: 900; color: #fff;
  margin-bottom: 8px;
}
.author-name{ font-weight: 700; font-size: 13px; text-align: center; padding: 0 5px; }
.author-type{ font-size: 11px; color: var(--muted); margin-top: 4px; }

/* --- LEVEL GRID --- */
.level-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 12px;
  margin-top: 16px;
}
.level-btn{
  background: #fff; border: 2px solid #eee;
  border-radius: var(--radius);
  padding: 20px 10px !important;
  display: flex; flex-direction: column; align-items: center;
}
.level-btn:hover{ border-color: var(--accent); }
.level-num{ font-size: 28px; font-weight: 900; color: var(--accent); }
.level-label{ font-size: 12px; color: var(--muted); margin-top: 4px; }

/* --- GAME BOARD --- */
.game-shell{
  display:grid; grid-template-columns: 1fr 320px; gap: 18px;
}
.board-wrap{
  background: var(--bg-soft); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow);
}
.board-grid{
  display:grid;
  grid-template-columns: 40px 1fr;
  grid-template-rows: 40px 1fr;
  gap: 8px;
}
.coord-top{ display:grid; grid-auto-flow: column; grid-auto-columns: var(--tile); gap: var(--gap); }
.coord-left{ display:grid; grid-auto-rows: var(--tile); gap: var(--gap); }
.coord.cell{
  display:flex; align-items:center; justify-content:center;
  height: 40px; border-radius: 8px;
  background: #fff; border: 1px solid #eee;
  font-weight: 700; color: var(--muted); font-size: 12px;
}
#board.board{ display:grid; }

/* --- CARTE --- */
.card3d{ width: var(--tile); height: var(--tile); perspective: 900px; cursor:pointer; }
.card3d .face{
  width:100%; height:100%; border-radius: 12px;
  position: absolute; inset: 0;
  display:flex; align-items:center; justify-content:center;
  backface-visibility: hidden;
  transition: transform .35s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,.1);
  border: 2px solid #eee; overflow:hidden;
}
.card3d .front{
  background: radial-gradient(circle at 8px 8px, rgba(91,85,232,.1) 1.6px, transparent 2.4px) 0 0 / 16px 16px,
  radial-gradient(circle at 8px 8px, rgba(246,164,59,.1) 1.6px, transparent 2.4px) 8px 8px / 16px 16px,
  linear-gradient(180deg, #fff, #f8f9fa);
  transform: rotateY(0deg);
}
.card3d .back{
  background: #fff; transform: rotateY(180deg);
}
.card3d .back::after{
  content:"♪"; font-size: 40px; font-weight: 900; color: var(--accent);
}
.card3d.flip .front{ transform: rotateY(180deg); }
.card3d.flip .back{ transform: rotateY(0deg); }
.card3d.matched{ opacity: .5; }

/* --- SIDEBAR --- */
.game-right{
  background: var(--bg-soft); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow);
  display:flex; flex-direction: column; gap: 14px;
}
.side-title{ font-size: 18px; font-weight: 800; }
.side-stats{ display:grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.stat{
  background: #fff; border: 1px solid #eee;
  border-radius: 12px; padding: 10px; text-align: center;
}
.stat-label{ color: var(--muted); font-weight: 700; font-size: 11px; }
.stat-value{ font-size: 24px; font-weight: 900; color: var(--accent); }
.moves-log{
  min-height: 150px; background: #fff;
  border: 1px solid #eee; border-radius: 12px;
  padding: 10px; overflow:auto; font-size: 12px;
}
.move{ padding: 6px 8px; border-bottom: 1px solid #f0f0f0; }
.board-controls{ display:grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: auto; }

/* --- MODAL --- */
.modal{
  position: fixed; inset:0; background: rgba(0,0,0,.5);
  display:flex; align-items:center; justify-content:center; padding: 18px; z-index: 2000;
}
.modal-content{
  width: min(480px, 100%); background: #fff;
  border-radius: var(--radius); padding: 22px;
  box-shadow: 0 20px 60px rgba(0,0,0,.25);
}

/* --- CLASSIFICA CORRETTA --- */
.rank{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-top: 16px;
}
.rank-row{
  display:grid;
  grid-template-columns: 50px 1.5fr 90px 100px 90px;
  gap: 12px;
  align-items:center;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255,255,255,.60);
  border: 2px solid rgba(91,85,232,.12);
}
.rank-head{
  font-weight: 900;
  background: rgba(91,85,232,.10);
}
.rank-row span{
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

/* --- IMPOSTAZIONI --- */
.settings-content{
  width: min(500px, 100%);
  padding: 0;
  overflow: hidden;
}
.settings-header{
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid #eee;
}
.settings-header h2{
  margin: 0;
  font-size: 22px;
}
.close-btn{
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  padding: 5px;
  color: var(--muted);
}
.settings-menu{
  padding: 10px;
}
.settings-item{
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.2s;
}
.settings-item:hover{
  background: #f8f9fa;
}
.settings-icon{
  font-size: 24px;
}
.settings-label{
  flex: 1;
  font-weight: 600;
  font-size: 16px;
}
.settings-arrow{
  color: var(--muted);
  font-size: 20px;
}
.settings-page{
  padding: 20px;
}
.back-btn{
  background: none;
  border: none;
  color: var(--accent);
  font-weight: 600;
  padding: 8px 0;
  margin-bottom: 16px;
  cursor: pointer;
}
.settings-page-content h3{
  margin-top: 0;
  color: var(--accent);
}
.settings-page-content p{
  line-height: 1.6;
  color: var(--text);
}

/* --- POPUP FINE PARTITA --- */
.end-hero{ font-size:44px; line-height:1; margin-bottom:8px; }
.end-sub{ font-weight:800; font-size:16px; margin-bottom:16px; color:var(--muted); }
.end-stats{ display:grid; grid-template-columns:1fr 1fr; gap:12px; margin:16px 0; }
.end-stat{ 
  background:rgba(91,85,232,.08); 
  border:2px solid rgba(91,85,232,.12); 
  border-radius:16px; 
  padding:12px;
  display:flex;
  flex-direction:column;
  gap:4px;
}
.end-stat .k{ color:rgba(26,34,64,.65); font-weight:800; font-size:12px; text-transform:uppercase; }
.end-stat .v{ font-weight:1000; font-size:22px; color:rgba(26,34,64,.95); }

/* --- APPROFONDIMENTI --- */
.appr-list{ display:flex; flex-direction:column; gap:16px; }
.appr-row{ 
  background:rgba(255,255,255,.55); 
  border:2px solid rgba(91,85,232,.12); 
  border-radius:18px; 
  padding:16px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.appr-title{ font-weight:900; font-size:16px; color:var(--text); }
.appr-actions{ display:flex; flex-wrap:wrap; gap:10px; margin-top:4px; }

/* --- RESPONSIVE --- */
@media (max-width: 860px){
  .game-shell{ grid-template-columns: 1fr; }
  .game-right{ order:2; }
  .board-wrap{ order:1; }
}
@media (max-width: 520px){
  .app-header{ height: 50px; padding: 0 10px; }
  .app-footer{ height: 40px; font-size: 11px; }
  body{ padding-top: 60px; padding-bottom: 50px; }
  .form-row{ grid-template-columns: 1fr; }
  .rank-row{ grid-template-columns: 40px 1fr 70px 80px 70px; font-size: 13px; }
}

/* ===== PLAYER AUDIO APPROFONDIMENTI ===== */
.appr-row{
  background: rgba(255,255,255,.55);
  border: 2px solid rgba(91,85,232,.12);
  border-radius: 18px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all 0.2s ease;
}
.appr-row.active-track{
  background: rgba(91,85,232,.08);
  border-color: rgba(91,85,232,.35);
  box-shadow: 0 4px 12px rgba(91,85,232,.15);
}
.appr-track-info{
  display: flex;
  align-items: center;
  gap: 12px;
}
.appr-track-number{
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(91,85,232,.12);
  color: var(--accent);
  font-weight: 900;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.appr-track-details{
  flex: 1;
  min-width: 0;
}
.appr-title{
  font-weight: 900;
  font-size: 16px;
  color: var(--text);
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.appr-track-type{
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.track-type-badge{
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 10px;
  background: rgba(246,164,59,.15);
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.track-type-badge.full{
  background: rgba(91,85,232,.15);
  color: var(--accent);
}

/* Player controls */
.appr-player{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: rgba(255,255,255,.7);
  border-radius: 12px;
  padding: 10px 12px;
}
.player-controls{
  display: flex;
  gap: 6px;
}
.player-btn{
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px solid rgba(91,85,232,.25);
  background: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  padding: 0;
}
.player-btn:hover:not(:disabled){
  border-color: var(--accent);
  background: rgba(91,85,232,.08);
  transform: scale(1.05);
}
.player-btn:disabled{
  opacity: 0.4;
  cursor: not-allowed;
}
.player-btn.player-play{
  border-color: var(--primary);
  color: var(--primary);
}
.player-btn.player-play:hover:not(:disabled){
  background: rgba(246,164,59,.15);
}
.player-icon{
  font-size: 14px;
  font-weight: 900;
}

/* Player status */
.player-status{
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}
.status-text{
  font-size: 12px;
  color: var(--muted);
  font-weight: 600;
}
.status-indicator{
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ccc;
  transition: all 0.3s ease;
}
.status-indicator.playing{
  background: var(--primary);
  box-shadow: 0 0 0 0 rgba(246,164,59,0.7);
  animation: pulse 1.5s infinite;
}
.status-indicator.paused{
  background: var(--muted);
}

@keyframes pulse{
  0%{
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(246,164,59,0.7);
  }
  70%{
    transform: scale(1);
    box-shadow: 0 0 0 6px rgba(246,164,59,0);
  }
  100%{
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(246,164,59,0);
  }
}

.appr-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}
.appr-btn-full{
  font-size: 13px;
  padding: 8px 14px;
}

/* Responsive */
@media (max-width: 520px){
  .appr-player{
    flex-direction: column;
    align-items: stretch;
  }
  .player-controls{
    justify-content: center;
  }
  .player-status{
    justify-content: center;
  }
}