/* ============================================================
 * arena-shared.css
 * ============================================================
 * CSS dùng chung giữa arena.html và dungeon.html (và explore.html
 * sau khi optimization). Trước đây file này được duplicate trong 2
 * file → chuyển ra file riêng để browser cache 1 lần + giảm bundle.
 *
 * Chứa: HUD top-left/right, panels (inventory/shop/character),
 * confirm dialog, item inspector, mobile responsive, dungeon loading
 * screen, exit-dungeon button, keyframes (mistRise, emblemPulseDark).
 * ============================================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }
  body { margin: 0; overflow: hidden; font-family: Arial, sans-serif; background: #000; }
  canvas { display: block; }

  #hud {
    position: absolute; top: 0; left: 0; width: 100%;
    pointer-events: none; color: white;
    text-shadow: 1px 1px 2px black; z-index: 10;
  }

  /* ============================================================
   * HUD CHUYÊN NGHIỆP — top-left: avatar + name + HP/EXP
   *                    top-right: score + gold + settings
   * ============================================================ */
  #topLeft {
    position: absolute;
    top: 14px;
    left: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, rgba(20,25,45,0.92), rgba(35,40,65,0.85));
    padding: 10px 16px 10px 10px;
    border-radius: 14px;
    border: 1px solid rgba(255,215,0,0.3);
    box-shadow: 0 4px 20px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.08);
    pointer-events: auto;
  }
  .hud-avatar {
    position: relative;
    width: 64px;
    height: 64px;
    flex-shrink: 0;
    cursor: pointer;
    transition: transform 0.15s;
  }
  .hud-avatar:hover { transform: scale(1.05); }
  .hud-avatar-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: conic-gradient(from 0deg, #ffd700, #ff8800, #ffd700, #ff8800, #ffd700);
    padding: 2px;
    box-shadow: 0 0 14px rgba(255,168,0,0.55);
  }
  .hud-avatar-inner {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1530, #2a2050);
  }
  .hud-avatar-inner canvas,
  .hud-avatar-inner img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
  }
  .hud-avatar-inner img { display: none; }
  .hud-avatar-camera {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: rgba(0,0,0,0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
  }
  .hud-avatar:hover .hud-avatar-camera { opacity: 1; }
  .hud-level-badge {
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #ffd700, #ff9500);
    color: #2a1a00;
    font-size: 11px;
    font-weight: 900;
    padding: 2px 9px;
    border-radius: 10px;
    border: 1.5px solid #5a3a00;
    text-shadow: 0 1px 0 rgba(255,255,255,0.4);
    box-shadow: 0 2px 6px rgba(0,0,0,0.5);
    letter-spacing: 0.3px;
    z-index: 2;
  }
  .hud-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 220px;
  }
  .hud-name-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 2px;
  }
  .hud-name {
    font-size: 14px;
    font-weight: 700;
    color: #ffe8a8;
    text-shadow: 0 1px 3px rgba(0,0,0,0.7);
    letter-spacing: 0.5px;
  }
  .hud-class-tag {
    font-size: 10px;
    padding: 2px 7px;
    border-radius: 8px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    color: #ddd;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
  }
  .hud-bar-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .hud-bar-icon {
    font-size: 11px;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.6));
  }
  .hud-bar {
    position: relative;
    flex: 1;
    height: 14px;
    background: rgba(0,0,0,0.55);
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.5);
  }
  .hud-bar-fill {
    height: 100%;
    border-radius: 7px;
    transition: width 0.3s ease;
    position: relative;
  }
  .hud-bar-fill::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.35), transparent 50%);
    border-radius: 7px;
  }
  .hud-bar-fill.hp {
    background: linear-gradient(90deg, #d6234a, #ff5577);
    box-shadow: 0 0 8px rgba(255,68,80,0.55);
  }
  .hud-bar-fill.exp {
    background: linear-gradient(90deg, #2980d6, #66c4ff);
    box-shadow: 0 0 8px rgba(80,160,255,0.55);
  }
  .hud-bar-text {
    position: absolute;
    inset: 0;
    text-align: center;
    font-size: 10px;
    line-height: 14px;
    font-weight: 700;
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.9);
    letter-spacing: 0.3px;
  }

  #topRight {
    position: absolute;
    top: 14px;
    right: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    pointer-events: auto;
    z-index: 100;  /* trên #quick-actions (z-index 51) để dropdown settingsMenu không bị che */
  }
  .hud-stat-card {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(20,25,45,0.92), rgba(35,40,65,0.85));
    padding: 8px 14px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.15);
    box-shadow: 0 4px 20px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.08);
    min-width: 90px;
  }
  .hud-stat-card .icon {
    font-size: 22px;
    filter: drop-shadow(0 0 6px currentColor);
  }
  .hud-stat-card .stat-info {
    display: flex;
    flex-direction: column;
    line-height: 1.05;
  }
  .hud-stat-card .stat-label {
    font-size: 9px;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.5);
    font-weight: 600;
  }
  .hud-stat-card .stat-value {
    font-size: 18px;
    font-weight: 800;
    text-shadow: 0 1px 3px rgba(0,0,0,0.8);
    letter-spacing: 0.5px;
  }
  .hud-stat-card.score .stat-value { color: #88ddff; }
  .hud-stat-card.gold  .stat-value { color: #ffd700; }
  .hud-stat-card .stat-sub {
    font-size: 9px;
    color: rgba(255,255,255,0.6);
    margin-top: 1px;
  }
  .hud-settings-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(20,25,45,0.92), rgba(35,40,65,0.85));
    border: 1px solid rgba(255,255,255,0.15);
    box-shadow: 0 4px 14px rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: #ddd;
    cursor: pointer;
    transition: all 0.2s;
    pointer-events: auto;
  }
  .hud-settings-btn:hover {
    transform: rotate(60deg);
    color: #ffd700;
    border-color: rgba(255,215,0,0.5);
  }
  #settingsMenu {
    position: absolute;
    top: 64px;
    right: 0;
    min-width: 220px;
    background: linear-gradient(135deg, rgba(20,25,45,0.97), rgba(35,40,65,0.95));
    border: 1px solid rgba(255,215,0,0.3);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.7), inset 0 1px 0 rgba(255,255,255,0.08);
    padding: 8px;
    display: none;
    flex-direction: column;
    gap: 2px;
    z-index: 9999;  /* trên mọi UI floating khác */
  }
  #settingsMenu.show { display: flex; }
  .settings-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: rgba(255,255,255,0.04);
    border: 1px solid transparent;
    border-radius: 8px;
    color: #eee;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
    font-weight: 500;
  }
  .settings-item:hover {
    background: rgba(255,215,0,0.1);
    border-color: rgba(255,215,0,0.3);
    color: #ffd700;
  }
  .settings-item.danger:hover {
    background: rgba(255,80,80,0.15);
    border-color: rgba(255,80,80,0.4);
    color: #ff8080;
  }
  .settings-item .item-icon { font-size: 18px; flex-shrink: 0; width: 24px; text-align: center; }
  .settings-item .item-label { flex: 1; }

  .bar { display: none; }   /* legacy unused */

  #controls {
    position: absolute; bottom: 15px; left: 15px;
    background: rgba(0,0,0,0.55);
    padding: 10px 14px; border-radius: 10px;
    border: 2px solid rgba(255,255,255,0.2);
    font-size: 12px; line-height: 1.7;
  }
  #controls .key {
    display: inline-block; background: rgba(255,255,255,0.2);
    padding: 1px 7px; border-radius: 4px; font-weight: bold;
    margin-right: 5px; min-width: 18px; text-align: center;
  }

  /* ============================================================
   * DUNGEON LOADING SCREEN AAA — tối, lạnh, đe dọa
   * ============================================================ */
  #loading {
    position: fixed; inset: 0;
    background: #000;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    color: white; z-index: 100;
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
  }
  #loading::before {
    content: '';
    position: absolute; inset: 0;
    background:
      radial-gradient(ellipse 70% 50% at 50% 100%, rgba(140,30,30,0.3), transparent 60%),
      radial-gradient(ellipse 60% 40% at 50% 0%, rgba(20,40,80,0.4), transparent 60%),
      linear-gradient(180deg, #050208 0%, #0a0512 35%, #1a0808 70%, #2a0a0a 100%);
    z-index: 0;
  }
  /* Particles mist - sương mờ */
  #loading::after {
    content: '';
    position: absolute; inset: 0;
    background-image:
      radial-gradient(2px 2px at 20% 90%, rgba(180,80,80,0.4), transparent),
      radial-gradient(1px 1px at 60% 80%, rgba(120,40,40,0.3), transparent),
      radial-gradient(1.5px 1.5px at 30% 70%, rgba(150,60,60,0.4), transparent),
      radial-gradient(1px 1px at 80% 85%, rgba(100,40,40,0.3), transparent),
      radial-gradient(2px 2px at 50% 95%, rgba(160,60,60,0.4), transparent);
    background-size: 100% 100%;
    animation: mistRise 10s linear infinite;
    z-index: 1;
    pointer-events: none;
  }
  @keyframes mistRise {
    0%   { transform: translateY(0)      scale(1);   opacity: 0.5; }
    50%  { opacity: 0.8; }
    100% { transform: translateY(-100vh) scale(1.5); opacity: 0; }
  }
  #loading > .vignette {
    position: absolute; inset: 0;
    background: radial-gradient(ellipse at center, transparent 25%, rgba(0,0,0,0.85) 100%);
    pointer-events: none;
    z-index: 2;
  }

  #loading .hero-emblem {
    position: relative;
    z-index: 3;
    width: 100px; height: 100px;
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: emblemPulseDark 3s ease-in-out infinite;
  }
  #loading .hero-emblem::before {
    content: '';
    position: absolute;
    width: 130px; height: 130px;
    border: 2px solid rgba(180,40,40,0.5);
    border-radius: 50%;
    animation: ringRotate 12s linear infinite;
  }
  #loading .hero-emblem::after {
    content: '';
    position: absolute;
    width: 110px; height: 110px;
    border: 1px dashed rgba(120,40,40,0.4);
    border-radius: 50%;
    animation: ringRotate 8s linear infinite reverse;
  }
  #loading .hero-emblem .emblem-icon {
    font-size: 64px;
    filter: drop-shadow(0 0 20px rgba(255,80,80,0.9))
            drop-shadow(0 0 40px rgba(180,40,40,0.5));
  }
  @keyframes emblemPulseDark {
    0%, 100% { transform: scale(1); filter: brightness(1) hue-rotate(0deg); }
    50%      { transform: scale(1.08); filter: brightness(1.3) hue-rotate(-10deg); }
  }
  @keyframes ringRotate {
    to { transform: rotate(360deg); }
  }

  #loading h1 {
    position: relative;
    z-index: 3;
    font-size: 56px;
    font-weight: 900;
    letter-spacing: 8px;
    margin: 0 0 12px 0;
    background: linear-gradient(180deg, #ffaaaa 0%, #d04040 40%, #802020 70%, #401010 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 30px rgba(180,40,40,0.5);
    filter: drop-shadow(0 2px 0 rgba(40,0,0,0.8));
    text-transform: uppercase;
    animation: titleEmerge 1.5s cubic-bezier(0.16, 1, 0.3, 1);
  }
  @keyframes titleEmerge {
    0%   { opacity: 0; transform: scale(1.3) translateY(20px); letter-spacing: 30px; filter: blur(20px); }
    60%  { opacity: 1; filter: blur(0); }
    100% { opacity: 1; transform: scale(1) translateY(0); letter-spacing: 8px; }
  }
  #loading .subtitle {
    position: relative;
    z-index: 3;
    font-size: 13px;
    letter-spacing: 6px;
    text-transform: uppercase;
    color: rgba(255,180,180,0.7);
    margin-bottom: 60px;
    font-weight: 400;
    animation: fadeInDelayed 1.5s ease-out 0.6s backwards;
  }
  @keyframes fadeInDelayed {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  #loading .progress-frame {
    position: relative;
    z-index: 3;
    width: 380px;
    max-width: 80vw;
    margin-bottom: 16px;
    animation: fadeInDelayed 1.5s ease-out 0.9s backwards;
  }
  #loading .progress-bar {
    position: relative;
    width: 100%;
    height: 4px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(180,40,40,0.3);
    border-radius: 2px;
    overflow: hidden;
    box-shadow: 0 0 20px rgba(0,0,0,0.6) inset;
  }
  #loading .progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #802020 0%, #d04040 50%, #ff7070 100%);
    box-shadow: 0 0 15px rgba(255,80,80,0.9), 0 0 30px rgba(180,40,40,0.6);
    transition: width 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
  }
  #loading .progress-fill::after {
    content: '';
    position: absolute;
    top: 0; right: 0; bottom: 0;
    width: 30px;
    background: linear-gradient(90deg, transparent, white);
    opacity: 0.5;
    filter: blur(3px);
  }
  #loading .progress-frame::before,
  #loading .progress-frame::after {
    content: '◆';
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(180,40,40,0.7);
    font-size: 10px;
  }
  #loading .progress-frame::before { left: -16px; }
  #loading .progress-frame::after  { right: -16px; }

  #loading .status {
    position: relative;
    z-index: 3;
    font-size: 12px;
    letter-spacing: 3px;
    color: rgba(255,180,180,0.6);
    text-transform: uppercase;
    font-weight: 400;
    animation: fadeInDelayed 1.5s ease-out 1.2s backwards;
    min-height: 16px;
  }
  #loading .tip {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    font-size: 11px;
    color: rgba(255,180,180,0.5);
    letter-spacing: 2px;
    text-align: center;
    max-width: 80vw;
    font-style: italic;
    animation: fadeInDelayed 1.5s ease-out 1.8s backwards;
  }
  #loading .tip::before { content: '✦  '; opacity: 0.7; }
  #loading .tip::after  { content: '  ✦'; opacity: 0.7; }
  #loading .brand-corner {
    position: absolute;
    top: 24px;
    left: 24px;
    z-index: 3;
    font-size: 9px;
    letter-spacing: 4px;
    color: rgba(255,180,180,0.4);
    text-transform: uppercase;
    animation: fadeInDelayed 1.5s ease-out 0.3s backwards;
  }
  #loading .version-corner {
    position: absolute;
    top: 24px;
    right: 24px;
    z-index: 3;
    font-size: 9px;
    letter-spacing: 4px;
    color: rgba(255,180,180,0.4);
    text-transform: uppercase;
    animation: fadeInDelayed 1.5s ease-out 0.3s backwards;
  }

  @media (max-width: 768px) {
    #loading h1 { font-size: 36px; letter-spacing: 5px; }
    #loading .subtitle { font-size: 10px; letter-spacing: 4px; margin-bottom: 40px; }
    #loading .hero-emblem { width: 80px; height: 80px; margin-bottom: 24px; }
    #loading .hero-emblem .emblem-icon { font-size: 48px; }
    #loading .hero-emblem::before { width: 100px; height: 100px; }
    #loading .hero-emblem::after  { width: 88px; height: 88px; }
    #loading .progress-frame { width: 280px; }
    #loading .tip { font-size: 10px; bottom: 24px; padding: 0 30px; }
  }

  #gameOver {
    position: fixed; top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.85);
    display: none; flex-direction: column;
    align-items: center; justify-content: center;
    color: white; z-index: 50;
  }
  #gameOver h1 {
    font-size: 60px; color: #ff4444;
    margin-bottom: 20px; text-shadow: 0 0 20px #ff4444;
  }
  #gameOver p { font-size: 20px; margin-bottom: 30px; }
  #gameOver button {
    padding: 12px 30px; font-size: 18px;
    background: #ffd700; color: black;
    border: none; border-radius: 8px;
    cursor: pointer; font-weight: bold;
  }
  #gameOver button:hover { background: #ffaa00; }

  #popup {
    position: absolute; top: 30%; left: 50%;
    transform: translateX(-50%);
    font-size: 48px; font-weight: bold; color: #ffd700;
    text-shadow: 0 0 15px #ffd700, 2px 2px 4px black;
    pointer-events: none; opacity: 0; z-index: 20;
  }
  .popup-show { animation: popup 1.5s ease-out forwards; }
  @keyframes popup {
    0%   { opacity: 0; transform: translateX(-50%) translateY(0) scale(0.5); }
    20%  { opacity: 1; transform: translateX(-50%) translateY(-20px) scale(1.2); }
    100% { opacity: 0; transform: translateX(-50%) translateY(-80px) scale(1); }
  }

  #crosshair {
    display: none;   /* ẩn — game third-person không cần crosshair */
    position: absolute; top: 50%; left: 50%;
    width: 14px; height: 14px;
    margin-left: -7px; margin-top: -7px;
    border: 2px solid rgba(255,255,255,0.6);
    border-radius: 50%; pointer-events: none; z-index: 5;
  }

  /* Chỉ báo vùng an toàn (thôn) */
  #zoneIndicator {
    position: absolute;
    top: 15px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.55);
    padding: 6px 16px;
    border-radius: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    color: white;
    font-size: 13px;
    font-weight: bold;
    z-index: 10;
    text-shadow: 1px 1px 2px black;
    transition: all 0.3s;
  }
  #zoneIndicator.safe { border-color: #66ff88; color: #aaffaa; }
  #zoneIndicator.danger { border-color: #ff6666; color: #ffaaaa; }

  /* Nút Reset save */
  #resetBtn {
    position: absolute;
    bottom: 15px;
    right: 15px;
    background: rgba(80,30,30,0.7);
    border: 1px solid rgba(255,100,100,0.5);
    color: #ffaaaa;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 11px;
    cursor: pointer;
    z-index: 10;
  }
  #resetBtn:hover {
    background: rgba(120,40,40,0.9);
    color: white;
  }

  /* ===== PANEL CHUNG (Inventory / Shop / Character) ===== */
  .panel {
    position: fixed;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    background: linear-gradient(135deg, rgba(20,25,45,0.97), rgba(35,40,65,0.97));
    border: 2px solid #ffd700;
    border-radius: 12px;
    color: white;
    z-index: 60;
    display: none;
    box-shadow: 0 0 40px rgba(255,215,0,0.3);
    font-size: 14px;
  }
  .panel.show { display: block; }
  .panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 18px;
    border-bottom: 1px solid rgba(255,215,0,0.3);
    background: rgba(0,0,0,0.3);
    border-radius: 10px 10px 0 0;
  }
  .panel-title {
    font-size: 20px;
    font-weight: bold;
    color: #ffd700;
  }
  .panel-close {
    background: rgba(255,80,80,0.7);
    border: none; color: white;
    width: 28px; height: 28px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
  }
  .panel-close:hover { background: rgba(255,80,80,1); }

  .gold-display {
    color: #ffd700;
    font-weight: bold;
    margin-right: 12px;
  }

  /* ===== Tabs ===== */
  .tabs {
    display: flex;
    gap: 4px;
    padding: 8px 12px 0 12px;
    border-bottom: 1px solid rgba(255,255,255,0.15);
  }
  .tab {
    padding: 7px 14px;
    background: rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.15);
    border-bottom: none;
    border-radius: 6px 6px 0 0;
    cursor: pointer;
    font-size: 12px;
    color: #ccc;
  }
  .tab:hover { background: rgba(255,255,255,0.1); }
  .tab.active {
    background: rgba(255,215,0,0.2);
    color: #ffd700;
    font-weight: bold;
    border-color: #ffd700;
  }

  /* ===== Item grid ===== */
  .item-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 6px;
    padding: 14px;
  }
  .item-grid .item-slot {
    width: 100%;
    aspect-ratio: 1 / 1;
    height: auto;
    min-width: 0;
  }
  .item-slot {
    width: 64px; height: 64px;
    background: rgba(0,0,0,0.4);
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: 6px;
    position: relative;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    transition: all 0.15s;
  }
  .item-slot:hover {
    border-color: #ffd700;
    background: rgba(255,215,0,0.1);
    transform: scale(1.05);
  }
  .item-slot.empty {
    cursor: default;
    opacity: 0.4;
  }
  .item-slot.empty:hover {
    border-color: rgba(255,255,255,0.2);
    background: rgba(0,0,0,0.4);
    transform: none;
  }
  /* Icon ảnh render từ mesh - scale fit container */
  .item-slot .ic {
    width: 80%;
    height: 80%;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .item-slot .ic img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    image-rendering: -webkit-optimize-contrast;
  }
  /* Shop row icon */
  .shop-row .icon img,
  .equip-list-row .slot-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
  }
  .shop-row .icon, .equip-list-row .slot-icon {
    overflow: hidden;
  }
  .item-qty {
    position: absolute;
    bottom: 1px; right: 4px;
    font-size: 11px;
    font-weight: bold;
    text-shadow: 1px 1px 2px black;
    color: white;
  }
  /* ===== Item slot badges + states (DRY: dùng chung explore/dungeon/arena/guild) ===== */
  .item-slot .shop-price-tag {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    text-align: center;
    font-size: 10px;
    font-weight: bold;
    color: #ffd700;
    background: linear-gradient(180deg, transparent, rgba(0,0,0,0.85));
    padding: 6px 0 2px;
    pointer-events: none;
    text-shadow: 0 1px 2px black;
  }
  .item-slot .shop-price-tag.poor { color: #ff6666; }
  .item-slot.shop-cant-afford { opacity: 0.55; cursor: not-allowed; }
  .item-slot .sell-price-tag {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    text-align: center;
    font-size: 10px;
    font-weight: bold;
    color: #88ff88;
    background: linear-gradient(180deg, transparent, rgba(0,0,0,0.85));
    padding: 6px 0 2px;
    pointer-events: none;
    text-shadow: 0 1px 2px black;
  }
  .item-slot .sell-price-tag.locked { color: #666; }
  .item-slot .qty-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    background: rgba(0,0,0,0.8);
    color: #fff;
    font-size: 10px;
    font-weight: bold;
    padding: 1px 5px;
    border-radius: 8px;
    pointer-events: none;
  }
  .item-slot .class-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
    pointer-events: none;
    z-index: 5;
    border: 1.5px solid;
    background: rgba(0,0,0,0.85);
    box-shadow: 0 1px 4px rgba(0,0,0,0.8);
  }
  .item-slot .class-badge.warrior {
    border-color: #ff8844;
    color: #ffaa66;
    background: rgba(80,30,10,0.92);
  }
  .item-slot .class-badge.archer {
    border-color: #44dd88;
    color: #88ffaa;
    background: rgba(10,60,30,0.92);
  }
  .item-slot .class-badge.both {
    border-color: #ffd700;
    color: #ffe88a;
    background: rgba(80,50,0,0.92);
    box-shadow: 0 0 8px rgba(255,215,0,0.5);
  }
  .item-slot.wrong-class {
    opacity: 0.65;
  }
  .item-slot.wrong-class::after {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
      45deg,
      transparent,
      transparent 5px,
      rgba(255,80,80,0.12) 5px,
      rgba(255,80,80,0.12) 10px
    );
    pointer-events: none;
    border-radius: inherit;
  }
  .item-slot .cell-lock-btn {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: rgba(0,0,0,0.7);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 11px;
    cursor: pointer;
    padding: 0;
    line-height: 18px;
    transition: all 0.15s;
    z-index: 2;
  }
  .item-slot .cell-lock-btn:hover { background: rgba(255,215,0,0.6); }
  .item-slot .cell-lock-btn.locked { background: rgba(255,180,40,0.85); box-shadow: 0 0 6px rgba(255,180,40,0.6); }
  .item-slot.locked-cell { opacity: 0.55; cursor: default; }

  .item-rarity-common    { border-color: #aaaaaa; }
  .item-rarity-uncommon  { border-color: #44dd44; box-shadow: 0 0 6px rgba(68,221,68,0.4); }
  .item-rarity-rare      { border-color: #44aaff; box-shadow: 0 0 6px rgba(68,170,255,0.4); }
  .item-rarity-epic      { border-color: #cc66ff; box-shadow: 0 0 8px rgba(204,102,255,0.5); }
  .item-rarity-legendary { border-color: #ff8800; box-shadow: 0 0 10px rgba(255,136,0,0.6); }
  .item-rarity-mythic    { border-color: #ff3399; box-shadow: 0 0 12px rgba(255,51,153,0.7), 0 0 20px rgba(255,51,153,0.3); }
  .item-rarity-default   { border-color: #888888; opacity: 0.85; }

  .equip-list-row { position: relative; }

  /* ===== Pagination ===== */
  .pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-top: 1px solid rgba(255,255,255,0.1);
  }
  .pagination button {
    background: rgba(255,215,0,0.2);
    border: 1px solid #ffd700;
    color: #ffd700;
    padding: 4px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
  }
  .pagination button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
  }
  .pagination .pageinfo { font-size: 12px; opacity: 0.85; }

  /* ===== Tooltip ===== */
  #tooltip {
    position: fixed;
    background: rgba(0,0,0,0.95);
    border: 2px solid #ffd700;
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 12px;
    line-height: 1.5;
    color: white;
    pointer-events: none;
    z-index: 200;
    display: none;
    max-width: 240px;
  }
  #tooltip .t-name { font-size: 14px; font-weight: bold; margin-bottom: 4px; }
  #tooltip .t-type { color: #aaa; font-size: 11px; margin-bottom: 6px; }
  #tooltip .t-stat { color: #88ff88; }
  #tooltip .t-desc { color: #ddd; font-style: italic; margin-top: 4px; }
  #tooltip .t-price { color: #ffd700; margin-top: 4px; font-weight: bold; }
  #tooltip .t-action { color: #88ddff; margin-top: 6px; font-size: 11px; }

  /* ===== Shop specific ===== */
  #shopPanel { width: 480px; }
  #npcPanel  { width: 420px; }
  #dungeonPanel { width: 440px; }

  .npc-panel-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px 10px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .npc-panel-icon { font-size: 36px; }
  .npc-panel-name { font-size: 16px; font-weight: bold; color: #ffd700; }
  .npc-panel-sub  { font-size: 12px; color: #aaa; margin-top: 2px; }
  .npc-dialog {
    padding: 12px 16px;
    font-size: 13px;
    color: #ccddaa;
    font-style: italic;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .npc-actions {
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .npc-action-btn {
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.15);
    color: #e0e0e0;
    padding: 11px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    text-align: left;
    transition: all 0.15s;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .npc-action-btn:hover { background: rgba(255,215,0,0.15); border-color: #ffd700; color: #ffd700; }
  .npc-action-btn:disabled { opacity: 0.4; cursor: not-allowed; }
  .npc-action-btn .cost { font-size: 12px; color: #ffd700; }
  .npc-action-btn .desc { font-size: 11px; color: #888; margin-top: 2px; }

  /* Dungeon panel */
  .dungeon-header {
    background: linear-gradient(135deg, #1a0a0a, #2d1010);
    padding: 16px;
    text-align: center;
    border-bottom: 1px solid #5a2020;
  }
  .dungeon-title { font-size: 20px; font-weight: bold; color: #ff6644; margin-bottom: 4px; }
  .dungeon-sub   { font-size: 12px; color: #aa7766; }
  .dungeon-boss-info {
    padding: 14px 16px;
    display: flex;
    gap: 12px;
    align-items: center;
    border-bottom: 1px solid rgba(255,100,50,0.2);
  }
  .dungeon-boss-icon { font-size: 48px; }
  .dungeon-boss-name { font-size: 16px; font-weight: bold; color: #ff8866; }
  .dungeon-boss-stat { font-size: 12px; color: #aaa; margin-top: 4px; }
  .dungeon-reward {
    padding: 12px 16px;
    background: rgba(255,100,0,0.08);
    border-bottom: 1px solid rgba(255,100,50,0.15);
  }
  .dungeon-reward-title { font-size: 12px; color: #ffaa44; margin-bottom: 6px; font-weight: bold; }
  .dungeon-reward-items { display: flex; gap: 8px; flex-wrap: wrap; }
  .dungeon-reward-item {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 12px;
    color: #ddd;
  }
  .dungeon-daily-status {
    padding: 10px 16px;
    font-size: 12px;
    text-align: center;
  }
  .dungeon-enter-btn {
    margin: 12px 16px 16px;
    width: calc(100% - 32px);
    padding: 14px;
    background: linear-gradient(135deg, #882200, #cc4422);
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 15px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.15s;
  }
  .dungeon-enter-btn:hover { background: linear-gradient(135deg, #aa3300, #ee5533); }
  .dungeon-enter-btn:disabled { background: #333; color: #666; cursor: not-allowed; }

  /* Proximity hint */
  #proximityHint {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.75);
    color: #ffd700;
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 13px;
    border: 1px solid rgba(255,215,0,0.4);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s;
    white-space: nowrap;
  }
  #proximityHint.visible { opacity: 1; }

  /* Mode tabs (Mua / Bán) */
  .shop-mode-tabs {
    display: flex;
    gap: 6px;
    padding: 10px 12px 4px 12px;
  }
  .mode-btn {
    flex: 1;
    padding: 10px;
    background: rgba(0,0,0,0.4);
    border: 2px solid rgba(255,255,255,0.15);
    color: #ccc;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    transition: all 0.15s;
  }
  .mode-btn:hover {
    background: rgba(255,255,255,0.1);
    color: white;
  }
  .mode-btn.active {
    background: rgba(255,215,0,0.2);
    border-color: #ffd700;
    color: #ffd700;
  }
  .mode-btn[data-mode="sell"].active {
    background: rgba(136,221,68,0.2);
    border-color: #88dd44;
    color: #aaff66;
  }
  #shopList {
    max-height: 380px;
    overflow-y: auto;
    padding: 8px;
  }
  .shop-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px;
    background: rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px;
    margin-bottom: 6px;
    cursor: pointer;
    transition: background 0.12s, border-color 0.12s;
  }
  .shop-row.selected {
    background: rgba(136,221,68,0.15);
    border-color: #88dd44;
  }
  .shop-row .sell-check {
    width: 18px; height: 18px;
    border: 2px solid #555;
    border-radius: 4px;
    flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 13px;
    transition: all 0.1s;
  }
  .shop-row.selected .sell-check {
    background: #88dd44;
    border-color: #88dd44;
    color: #000;
  }
  .sell-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: rgba(0,0,0,0.3);
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .sell-toolbar .sel-count { flex: 1; font-size: 12px; color: #aaa; }
  .sell-toolbar .sel-total { font-size: 12px; color: #ffd700; font-weight: bold; }
  .sell-toolbar button {
    padding: 5px 12px;
    border: none; border-radius: 5px;
    font-size: 12px; font-weight: bold; cursor: pointer;
  }
  .btn-sel-all  { background: rgba(255,255,255,0.12); color: #ddd; }
  .btn-sel-all:hover { background: rgba(255,255,255,0.2); }
  .btn-sell-sel { background: #88dd44; color: #000; }
  .btn-sell-sel:hover { background: #aaee55; }
  .btn-sell-sel:disabled { background: #444; color: #666; cursor: not-allowed; }
  .shop-row .icon {
    width: 42px; height: 42px;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px;
    background: rgba(0,0,0,0.4);
    border-radius: 4px;
  }
  .shop-row .info { flex: 1; }
  .shop-row .name { font-weight: bold; font-size: 13px; }
  .shop-row .stat { font-size: 11px; color: #88ff88; }
  .shop-row .price { color: #ffd700; font-weight: bold; }
  .shop-row button {
    background: #ffd700;
    color: black;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    font-size: 12px;
  }
  .shop-row button:hover { background: #ffaa00; }
  .shop-row button:disabled { background: #666; color: #aaa; cursor: not-allowed; }

  /* ===== Inventory panel ===== */
  #invPanel { width: 460px; }

  /* ============================================================
   * CONFIRM DIALOG — đẹp, dùng thay alert/confirm
   * ============================================================ */
  #confirmDialog {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.65);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    animation: cdFadeIn 0.2s ease-out;
  }
  #confirmDialog.show { display: flex; }
  @keyframes cdFadeIn { from { opacity: 0; } to { opacity: 1; } }
  #confirmDialog .cd-card {
    width: 90%;
    max-width: 380px;
    background: linear-gradient(135deg, rgba(28,32,52,0.98), rgba(45,40,70,0.96));
    border: 1.5px solid rgba(255,215,100,0.4);
    border-radius: 14px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.7), inset 0 1px 0 rgba(255,255,255,0.08);
    color: white;
    overflow: hidden;
    animation: cdScaleIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  }
  @keyframes cdScaleIn {
    from { opacity: 0; transform: scale(0.92) translateY(-10px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
  }
  #confirmDialog .cd-header {
    padding: 18px 22px 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  #confirmDialog .cd-icon {
    width: 44px; height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
    background: linear-gradient(135deg, #ffd700, #ff8800);
    box-shadow: 0 0 20px rgba(255,180,40,0.5);
  }
  #confirmDialog .cd-icon.warn {
    background: linear-gradient(135deg, #ff8844, #cc3300);
    box-shadow: 0 0 20px rgba(255,80,40,0.5);
  }
  #confirmDialog .cd-title {
    font-size: 16px;
    font-weight: 800;
    color: #ffe8a8;
    letter-spacing: 0.5px;
    flex: 1;
  }
  #confirmDialog .cd-body {
    padding: 16px 22px 8px;
    font-size: 13px;
    line-height: 1.5;
    color: #ddd;
  }
  #confirmDialog .cd-body strong { color: #ffd700; font-weight: 700; }
  #confirmDialog .cd-body .gold-amount { color: #ffd700; font-size: 16px; font-weight: 700; }
  #confirmDialog .cd-actions {
    padding: 12px 22px 18px;
    display: flex;
    gap: 10px;
    justify-content: flex-end;
  }
  #confirmDialog .cd-btn {
    padding: 10px 20px;
    border-radius: 8px;
    border: 1px solid transparent;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s;
    min-width: 90px;
    letter-spacing: 0.5px;
    user-select: none;
    -webkit-user-select: none;
  }
  #confirmDialog .cd-btn.cancel {
    background: rgba(255,255,255,0.06);
    border-color: rgba(255,255,255,0.18);
    color: #bbb;
  }
  #confirmDialog .cd-btn.cancel:hover { background: rgba(255,255,255,0.12); color: #fff; }
  #confirmDialog .cd-btn.confirm {
    background: linear-gradient(135deg, #ffb840, #ff7020);
    color: #2a1500;
    box-shadow: 0 4px 14px rgba(255,140,40,0.4);
  }
  #confirmDialog .cd-btn.confirm:hover {
    background: linear-gradient(135deg, #ffc858, #ff8030);
    box-shadow: 0 6px 18px rgba(255,140,40,0.6);
    transform: translateY(-1px);
  }
  #confirmDialog .cd-btn.confirm.danger {
    background: linear-gradient(135deg, #ff6644, #cc2200);
    color: white;
    box-shadow: 0 4px 14px rgba(255,80,40,0.4);
  }
  #confirmDialog .cd-btn.confirm.danger:hover {
    background: linear-gradient(135deg, #ff7755, #dd3311);
    box-shadow: 0 6px 18px rgba(255,80,40,0.6);
  }
  #confirmDialog .cd-btn:active { transform: scale(0.97); }
  @media (max-width: 768px) {
    #confirmDialog .cd-card { max-width: 92vw; }
    #confirmDialog .cd-btn { min-width: 80px; padding: 11px 16px; font-size: 12px; }
  }

  /* ===== Character panel ===== */
  #charPanel { width: 720px; }
  .char-body {
    display: grid;
    grid-template-columns: 200px 1fr 240px;
    gap: 12px;
    padding: 14px;
    align-items: start;
  }

  /* Cột trái: stats chi tiết */
  .char-stats-col {
    background: rgba(0,0,0,0.35);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    padding: 12px;
    font-size: 12px;
    max-height: 380px;
    overflow-y: auto;
    align-self: start;
  }
  .char-stats-col h3 {
    color: #ffd700;
    font-size: 13px;
    margin-bottom: 8px;
    border-bottom: 1px solid rgba(255,215,0,0.3);
    padding-bottom: 4px;
  }
  .char-stats-col .stat-row {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    border-bottom: 1px dotted rgba(255,255,255,0.08);
  }
  .char-stats-col .stat-row:last-child { border-bottom: none; }
  .char-stats-col .stat-row .label { color: #ccc; }
  .char-stats-col .stat-row .v { font-weight: bold; color: #fff; }
  .char-stats-col .stat-row .bonus {
    color: #88ff88;
    font-size: 11px;
    margin-left: 4px;
  }
  .char-stats-col .stat-row .preview-up   { color: #88ff88; font-size: 11px; margin-left: 4px; }
  .char-stats-col .stat-row .preview-down { color: #ff7777; font-size: 11px; margin-left: 4px; }

  /* Cột giữa: Khung render 3D nhân vật */
  .char-doll-col {
    position: relative;
    background: linear-gradient(180deg, rgba(60,80,120,0.4), rgba(20,30,50,0.6));
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    height: 380px;
    overflow: hidden;
  }
  /* Canvas nơi render model 3D */
  #charCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    cursor: grab;
  }
  #charCanvas:active { cursor: grabbing; }
  /* Hint xoay model */
  .char-doll-hint {
    position: absolute;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255,255,255,0.5);
    font-size: 10px;
    pointer-events: none;
    text-shadow: 1px 1px 2px black;
  }

  /* Thanh điều khiển animation - hiện ở đỉnh khung preview */
  .anim-controls {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 4px;
    background: rgba(0,0,0,0.55);
    padding: 4px;
    border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.15);
    z-index: 3;
  }
  .anim-btn {
    padding: 4px 10px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 4px;
    color: #ddd;
    cursor: pointer;
    font-size: 11px;
    font-weight: bold;
    transition: all 0.15s;
  }
  .anim-btn:hover {
    background: rgba(255,215,0,0.2);
    color: #ffd700;
    border-color: #ffd700;
  }
  .anim-btn.active {
    background: rgba(255,215,0,0.3);
    color: #ffd700;
    border-color: #ffd700;
  }
  .anim-btn.attack { color: #ff8866; }
  .anim-btn.attack:hover { background: rgba(255,136,102,0.2); border-color: #ff8866; }
  .anim-btn.attack.active { background: rgba(255,136,102,0.3); border-color: #ff8866; }

  /* ===== Preview overlay khi click item ===== */
  #previewOverlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 5;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 16px;
  }
  #previewOverlay.show { display: flex; }
  #previewOverlay .preview-card {
    background: linear-gradient(135deg, rgba(30,40,70,0.98), rgba(50,60,90,0.98));
    border: 2px solid #ffd700;
    border-radius: 10px;
    padding: 14px 18px;
    max-width: 320px;
    box-shadow: 0 0 30px rgba(255,215,0,0.4);
  }
  #previewOverlay .preview-title {
    font-size: 16px;
    font-weight: bold;
    color: #ffd700;
    margin-bottom: 8px;
    text-align: center;
  }
  #previewOverlay .preview-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(0,0,0,0.4);
    padding: 8px;
    border-radius: 6px;
    margin-bottom: 10px;
  }
  #previewOverlay .preview-icon {
    width: 48px; height: 48px;
    border: 2px solid;
    border-radius: 6px;
    display: flex; align-items: center; justify-content: center;
    font-size: 28px;
    background: rgba(0,0,0,0.4);
  }
  #previewOverlay .preview-name { font-weight: bold; font-size: 14px; }
  #previewOverlay .preview-desc { font-size: 11px; color: #ccc; font-style: italic; margin-top: 2px; }

  #previewOverlay .preview-stats {
    background: rgba(0,0,0,0.3);
    padding: 8px 10px;
    border-radius: 6px;
    margin-bottom: 10px;
    font-size: 12px;
  }
  #previewOverlay .preview-stat-row {
    display: flex;
    justify-content: space-between;
    padding: 3px 0;
  }
  #previewOverlay .preview-stat-row .label { color: #aaa; }
  #previewOverlay .preview-stat-row .change-up   { color: #88ff88; font-weight: bold; }
  #previewOverlay .preview-stat-row .change-down { color: #ff7777; font-weight: bold; }
  #previewOverlay .preview-stat-row .change-same { color: #888; }

  #previewOverlay .preview-replacing {
    font-size: 11px;
    color: #ffaa66;
    text-align: center;
    margin-bottom: 10px;
  }
  #previewOverlay .preview-buttons {
    display: flex;
    gap: 8px;
    justify-content: center;
  }
  #previewOverlay button {
    padding: 8px 18px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    font-size: 13px;
  }
  #previewOverlay .btn-confirm {
    background: #ffd700;
    color: black;
  }
  #previewOverlay .btn-confirm:hover { background: #ffaa00; }
  #previewOverlay .btn-cancel {
    background: rgba(255,80,80,0.6);
    color: white;
  }
  #previewOverlay .btn-cancel:hover { background: rgba(255,80,80,0.9); }

  /* ===== Item 3D Inspector (popup xoay 3D + log góc) ===== */
  #itemInspector {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.75);
    z-index: 1100;
    align-items: center;
    justify-content: center;
    padding: 10px;     /* mobile margin từ viewport edge */
    box-sizing: border-box;
  }
  #itemInspector.show { display: flex; }
  #itemInspector .inspector-card {
    background: linear-gradient(180deg, #1f2030, #14151c);
    border: 2px solid #ffd700;
    border-radius: 12px;
    width: 380px;
    max-width: 100%;
    max-height: 95vh;
    overflow: hidden;
    display: flex;             /* flex col → header sticky, body scroll */
    flex-direction: column;
    box-shadow: 0 12px 40px rgba(0,0,0,0.6);
  }
  #itemInspector .inspector-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    background: rgba(255,215,0,0.1);
    border-bottom: 1px solid rgba(255,215,0,0.3);
    flex-shrink: 0;            /* header luôn hiện trên đầu */
  }
  /* Vùng dưới header → scroll khi nội dung tràn (canvas + info + actions) */
  #itemInspector .inspector-scroll {
    flex: 1 1 auto;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }
  #itemInspector .inspector-scroll::-webkit-scrollbar { width: 6px; }
  #itemInspector .inspector-scroll::-webkit-scrollbar-track { background: rgba(0,0,0,0.3); }
  #itemInspector .inspector-scroll::-webkit-scrollbar-thumb { background: rgba(255,215,0,0.4); border-radius: 3px; }
  #itemInspector .inspector-close {
    /* Đảm bảo nút × đủ to để tap trên mobile (44×44 Apple guideline) */
    min-width: 36px;
    min-height: 36px;
    font-size: 22px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  #itemInspector .inspector-title {
    color: #ffd700;
    font-weight: bold;
    font-size: 14px;
  }
  #itemInspector .inspector-close {
    background: transparent;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 18px;
    padding: 0 6px;
  }
  #itemInspector .inspector-close:hover { color: #ffd700; }
  #inspectorCanvas {
    display: block;
    /* !important để override inline style mà THREE.js renderer.setSize set lên canvas */
    width: 210px !important;
    height: 210px !important;
    max-width: 100%;
    margin: 0 auto;
    cursor: grab;
    background: radial-gradient(circle at center, #2a2c3a 0%, #0d0e15 100%);
  }
  #inspectorCanvas:active { cursor: grabbing; }
  /* Mobile: canvas nhỏ hơn để dành chỗ cho info + actions trong viewport */
  @media (max-width: 600px) {
    #inspectorCanvas {
      width: 144px !important;
      height: 144px !important;
    }
    #itemInspector .inspector-info { padding: 10px 12px; }
    #itemInspector .insp-name { font-size: 14px; }
  }
  #itemInspector .inspector-info {
    padding: 12px 14px;
    background: rgba(0,0,0,0.4);
  }
  #itemInspector .insp-name {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 4px;
    text-align: center;
  }
  #itemInspector .insp-rarity {
    font-size: 11px;
    color: #aaa;
    text-align: center;
    margin-bottom: 8px;
  }
  #itemInspector .insp-stats {
    background: rgba(255,255,255,0.06);
    border-radius: 4px;
    padding: 8px 10px;
    margin-bottom: 8px;
  }
  #itemInspector .insp-stat-row {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #ddd;
    padding: 2px 0;
  }
  #itemInspector .insp-stat-row .v {
    color: #88ff88;
    font-weight: bold;
  }
  #itemInspector .insp-desc {
    font-size: 11px;
    color: #aaa;
    font-style: italic;
    text-align: center;
    margin-bottom: 8px;
  }
  #itemInspector .insp-set {
    margin-bottom: 8px;
    padding: 6px 8px;
    background: rgba(0,0,0,0.4);
    border-radius: 4px;
    border-left: 3px solid #ffd700;
  }
  #itemInspector .insp-set-name {
    font-size: 11px;
    font-weight: bold;
    margin-bottom: 2px;
  }
  #itemInspector .insp-set-tier {
    font-size: 10px;
    margin-top: 1px;
  }
  #itemInspector .inspector-actions {
    display: flex;
    gap: 8px;
    justify-content: center;
  }
  #itemInspector .inspector-actions button {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    font-size: 13px;
    transition: all 0.15s;
  }
  #itemInspector .btn-equip {
    background: #ffd700;
    color: black;
  }
  #itemInspector .btn-equip:hover { background: #ffaa00; }
  #itemInspector .btn-equip:disabled {
    background: #555;
    color: #aaa;
    cursor: not-allowed;
  }
  #itemInspector .btn-unequip {
    background: rgba(255,80,80,0.7);
    color: white;
  }
  #itemInspector .btn-unequip:hover { background: rgba(255,80,80,1); }
  #itemInspector .btn-sell {
    background: #88dd44;
    color: white;
  }
  #itemInspector .btn-sell:hover { background: #66bb22; }
  #itemInspector .btn-sell:disabled {
    background: #555;
    color: #aaa;
    cursor: not-allowed;
  }

  /* Cột phải: danh sách trang bị đang đeo */
  .char-equip-list {
    background: rgba(0,0,0,0.35);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    padding: 12px;
    font-size: 12px;
    max-height: 380px;
    overflow-y: auto;
    align-self: start;
  }
  .char-equip-list h3 {
    color: #ffd700;
    font-size: 13px;
    margin-bottom: 8px;
    border-bottom: 1px solid rgba(255,215,0,0.3);
    padding-bottom: 4px;
  }
  /* Grid icon đeo - icon to, không text */
  .equip-icons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
    gap: 8px;
    margin-top: 4px;
  }
  .equip-icon-cell {
    aspect-ratio: 1 / 1;
    width: 100%;
    background: rgba(0,0,0,0.4);
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    cursor: pointer;
    transition: all 0.15s;
    position: relative;
    overflow: hidden;
  }
  .equip-icon-cell:hover {
    border-color: #ffd700;
    background: rgba(255,215,0,0.12);
    transform: scale(1.06);
    box-shadow: 0 0 12px rgba(255,215,0,0.4);
  }
  .equip-icon-cell.empty {
    opacity: 0.35;
    cursor: default;
    font-size: 22px;
  }
  .equip-icon-cell.empty:hover {
    border-color: rgba(255,255,255,0.2);
    background: rgba(0,0,0,0.4);
    transform: none;
    box-shadow: none;
  }
  .equip-icon-cell img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
  }
  .equip-icon-cell .slot-tag {
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    text-align: center;
    font-size: 8px;
    color: rgba(255,255,255,0.55);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-shadow: 0 1px 1px black;
    pointer-events: none;
    background: linear-gradient(180deg, transparent, rgba(0,0,0,0.7));
    padding: 4px 0 1px;
  }

  .equip-list-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 4px;
    border-radius: 4px;
    margin-bottom: 4px;
    background: rgba(255,255,255,0.04);
    cursor: pointer;
    transition: background 0.15s;
  }
  .equip-list-row:hover { background: rgba(255,215,0,0.15); }
  .equip-list-row.empty { opacity: 0.4; cursor: default; }
  .equip-list-row.empty:hover { background: rgba(255,255,255,0.04); }
  .equip-list-row .slot-icon {
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px;
    background: rgba(0,0,0,0.4);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 4px;
    flex-shrink: 0;
  }
  .equip-list-row .slot-info { flex: 1; min-width: 0; }
  .equip-list-row .slot-label {
    font-size: 10px;
    color: #aaa;
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }
  .equip-list-row .slot-name {
    font-size: 12px;
    font-weight: bold;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .equip-list-row .slot-stats {
    font-size: 10px;
    color: #88ff88;
  }
  .equip-list-row .remove-btn {
    background: rgba(255,80,80,0.5);
    border: none;
    color: white;
    width: 22px; height: 22px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    flex-shrink: 0;
  }
  .equip-list-row .remove-btn:hover { background: rgba(255,80,80,0.9); }

  /* Khu inventory mini bên dưới character */
  .char-inv-section {
    border-top: 1px solid rgba(255,255,255,0.15);
    padding: 12px;
  }
  .char-inv-section h3 {
    color: #ffd700;
    font-size: 13px;
    margin-bottom: 8px;
  }
  .char-inv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
    gap: 6px;
    justify-content: start;
  }
  .char-inv-grid .item-slot {
    width: 100%;
    aspect-ratio: 1 / 1;
    height: auto;
    font-size: 22px;
    min-width: 0;
  }
  /* Highlight item cùng loại với slot đang hover */
  .item-slot.compat {
    box-shadow: 0 0 0 2px #88ff88, 0 0 12px rgba(136,255,136,0.6);
  }

  /* Preview indicator trong stats */
  .stat-row.preview-changed {
    background: rgba(255,215,0,0.08);
    border-radius: 3px;
    padding: 4px 6px !important;
    margin: 2px -6px;
  }

  /* ===== Toast ===== */
  #toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.85);
    color: white;
    padding: 10px 20px;
    border-radius: 6px;
    border: 1px solid #ffd700;
    font-size: 13px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 70;
  }
  #toast.show { opacity: 1; }

  /* ===== MOBILE CONTROLS ===== */
  #mobileControls { display:none; position:fixed; inset:0; pointer-events:none; z-index:50; }
  #joystickZone { position:absolute; bottom:30px; left:30px; width:120px; height:120px; pointer-events:auto; }
  #joystickBase { position:absolute; inset:0; background:rgba(255,255,255,0.12); border:2px solid rgba(255,255,255,0.3); border-radius:50%; }
  #joystickThumb { position:absolute; width:48px; height:48px; top:50%; left:50%; transform:translate(-50%,-50%); background:rgba(255,255,255,0.5); border-radius:50%; border:2px solid rgba(255,255,255,0.8); }
  #skillButtons { position:absolute; bottom:30px; right:20px; display:flex; flex-direction:column; gap:12px; pointer-events:auto; }
  .skill-btn { width:64px; height:64px; border-radius:50%; border:2px solid rgba(255,255,255,0.4); display:flex; align-items:center; justify-content:center; font-size:22px; cursor:pointer; user-select:none; -webkit-user-select:none; }
  .skill-btn:active { transform:scale(0.9); }
  #btnAttack { background:rgba(80,180,80,0.75); border-color:#88ff88; }
  #btnSkill  { background:rgba(80,120,220,0.75); border-color:#88aaff; }
  #mobilePanelBtns { position:absolute; top:14px; right:14px; display:flex; gap:8px; pointer-events:auto; }
  .mpanel-btn { background:rgba(0,0,0,0.6); border:1px solid rgba(255,255,255,0.2); color:white; border-radius:8px; padding:8px 12px; font-size:18px; cursor:pointer; }

  /* ============================================================
   * EXIT DUNGEON BUTTON — top-right, vị trí giống nút túi đồ ở làng
   * ============================================================ */
  #exitDungeonBtn {
    position: fixed;
    top: 90px;
    right: 14px;
    z-index: 200;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 18px 9px 14px;
    background: linear-gradient(135deg, rgba(80,15,15,0.92), rgba(50,10,10,0.92));
    color: #ffe0c8;
    border: 1px solid rgba(255,140,80,0.4);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    pointer-events: auto;
    box-shadow:
      0 6px 20px rgba(0,0,0,0.6),
      inset 0 1px 0 rgba(255,200,160,0.15),
      0 0 18px rgba(180,40,30,0.35);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    text-shadow: 0 1px 2px rgba(0,0,0,0.8);
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    user-select: none;
    -webkit-user-select: none;
  }
  #exitDungeonBtn:hover {
    background: linear-gradient(135deg, rgba(120,30,30,0.96), rgba(80,20,20,0.96));
    border-color: rgba(255,180,120,0.7);
    box-shadow:
      0 8px 28px rgba(0,0,0,0.7),
      inset 0 1px 0 rgba(255,220,180,0.2),
      0 0 28px rgba(220,60,40,0.5);
    transform: translateY(-1px);
    color: #fff5e8;
  }
  #exitDungeonBtn:active {
    transform: translateY(1px) scale(0.98);
  }
  #exitDungeonBtn .exit-icon {
    font-size: 16px;
    font-weight: 900;
    color: #ffaa66;
    line-height: 1;
    transition: transform 0.2s;
  }
  #exitDungeonBtn:hover .exit-icon {
    transform: translateX(-3px);
    color: #ffcc88;
  }
  #exitDungeonBtn .exit-label {
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-size: 11px;
  }
  @media (max-width:768px) {
    #mobileControls { display: block; }

    /* ===== TOP LEFT mobile: avatar + bars gọn ===== */
    #topLeft {
      top: 35px !important; left: 6px !important;
      padding: 6px 10px 6px 6px !important;
      gap: 8px !important;
    }
    .hud-avatar { width: 50px !important; height: 50px !important; }
    .hud-level-badge {
      font-size: 9px !important;
      padding: 1px 6px !important;
      bottom: -3px !important;
    }
    .hud-info { min-width: 160px !important; gap: 3px !important; }
    .hud-name { font-size: 12px !important; }
    .hud-class-tag { font-size: 9px !important; padding: 1px 5px !important; }
    .hud-bar { height: 11px !important; }
    .hud-bar-text { font-size: 9px !important; line-height: 11px !important; }
    .hud-bar-icon { font-size: 10px !important; width: 14px !important; }

    /* ===== TOP RIGHT mobile ===== */
    #topRight {
      top: 35px !important; right: 6px !important;
      gap: 6px !important;
    }
    .hud-stat-card {
      padding: 5px 9px !important;
      gap: 5px !important;
      min-width: 0 !important;
    }
    .hud-stat-card .icon { font-size: 16px !important; }
    .hud-stat-card .stat-label { font-size: 8px !important; letter-spacing: 0.8px !important; }
    .hud-stat-card .stat-value { font-size: 14px !important; }
    .hud-stat-card .stat-sub { font-size: 8px !important; }
    .hud-stat-card.score .stat-sub { display: none !important; }

    .hud-settings-btn {
      width: 36px !important; height: 36px !important;
      font-size: 18px !important;
    }
    #settingsMenu {
      top: 44px !important;
      min-width: 200px !important;
    }
    .settings-item {
      padding: 9px 12px !important;
      font-size: 12px !important;
    }

    /* ===== SKILL CD BAR: xuống đáy giống PC ===== */
    #skillCdBar {
      top: auto !important;
      bottom: 35px !important;
      left: 50% !important;
      transform: translateX(-50%) !important;
      gap: 10px !important;
    }
    #skill1Cd, #skill2Cd {
      width: 38px !important; height: 38px !important;
      font-size: 16px !important;
    }
    #skillCdBar > div > div:last-child {
      font-size: 8px !important;
      margin-top: 1px !important;
    }

    /* ===== MOBILE PANEL BUTTONS: hàng ngang dưới topLeft ===== */
    #mobilePanelBtns {
      top: 119px !important;
      left: 8px !important;
      right: auto !important;
      bottom: auto !important;
      flex-direction: row !important;
      gap: 6px !important;
    }
    .mpanel-btn {
      width: 38px !important; height: 38px !important;
      padding: 0 !important;
      display: flex !important;
      align-items: center !important;
      justify-content: center !important;
      font-size: 18px !important;
    }

    /* ===== JOYSTICK ===== */
    #joystickZone {
      bottom: 35px !important; left: 14px !important;
      width: 130px !important; height: 130px !important;
    }
    #joystickThumb { width: 52px !important; height: 52px !important; }

    /* ===== SKILL BUTTONS ===== */
    .skill-btn {
      width: 64px !important; height: 64px !important;
      font-size: 26px !important;
    }
    #skillButtons {
      bottom: 35px !important; right: 14px !important;
      gap: 12px !important;
    }

    /* Daily reward HUD - dưới panel buttons phải */
    #dailyRewardHud {
      top: 159px !important;
      bottom: auto !important;
      right: 6px !important;
      left: auto !important;
      font-size: 9px !important;
      padding: 4px 6px !important;
      min-width: 120px !important;
      max-width: 140px !important;
    }

    /* Exit dungeon button — top-right giống mobilePanelBtns ở làng */
    #exitDungeonBtn {
      top: 119px !important;
      right: 8px !important;
      padding: 6px 14px 6px 11px !important;
      font-size: 11px !important;
    }
    #exitDungeonBtn .exit-label {
      font-size: 9px !important;
      letter-spacing: 1.2px !important;
    }
    #exitDungeonBtn .exit-icon {
      font-size: 14px !important;
    }

    /* Phóng to font panel */
    .panel { font-size:14px; max-height:85vh; width:96vw !important; }
    .shop-row button, .npc-action-btn { min-height: 44px; }

    /* ===== CHARACTER PANEL: 1 scroll mượt cho cả panel ===== */
    #charPanel {
      width: 96vw !important;
      max-height: 90vh !important;
      flex-direction: column !important;
    }
    #charPanel.show {
      display: flex !important;
    }
    #charPanel .panel-header { flex-shrink: 0 !important; }
    .char-body {
      grid-template-columns: 1fr !important;
      gap: 10px !important;
      padding: 10px !important;
      overflow-y: auto !important;
      -webkit-overflow-scrolling: touch !important;
      flex: 1 1 auto !important;
      overscroll-behavior: contain !important;
    }
    .char-stats-col {
      max-height: none !important;
      overflow: visible !important;
      font-size: 11px !important;
      padding: 10px !important;
    }
    .char-stats-col h3 { font-size: 12px !important; margin-bottom: 6px !important; }
    .char-doll-col {
      height: 320px !important;
      flex-shrink: 0 !important;
      touch-action: pan-y !important;
    }
    #charCanvas {
      touch-action: pan-y !important;
    }
    .anim-controls {
      top: 4px !important;
      gap: 2px !important;
      padding: 3px !important;
    }
    .anim-btn {
      padding: 4px 10px !important;
      font-size: 10px !important;
      min-height: 28px !important;
    }
    .char-doll-hint {
      font-size: 9px !important;
      bottom: 4px !important;
    }
    .char-equip-list {
      max-height: none !important;
      overflow: visible !important;
    }
    .char-inv-section {
      max-height: none !important;
      overflow: visible !important;
    }
    .char-inv-section h3 { font-size: 12px !important; }

    #previewOverlay .preview-card {
      max-width: 90vw !important;
      font-size: 11px !important;
    }
    #previewOverlay .preview-name { font-size: 13px !important; }
    #previewOverlay .preview-desc { font-size: 10px !important; }
  }

/* ============================================================
 * PvP Battle Panel — dùng chung cho explore.html (PvP modal Battle tab)
 * và arena.html (lobby overlay). HTML build qua renderPvpBattlePanel()
 * trong shared.js. Trước đây CSS chỉ inline trong explore.html → arena
 * mất style. Move ra file shared này để đồng bộ.
 * ============================================================ */
.pvp-stats { margin-bottom: 20px; }
.pvp-stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.pvp-stat-item {
  background: rgba(0,0,0,0.4);
  border: 1px solid rgba(201, 53, 53, 0.25);
  border-radius: 3px;
  padding: 12px 8px;
  text-align: center;
}
.pvp-stat-label {
  color: #aa6060;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.pvp-stat-value {
  color: #ffd700;
  font-size: 22px;
  font-weight: 900;
  font-family: ui-monospace, monospace;
}
.pvp-find-area {
  text-align: center;
}
.pvp-find-btn {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, #c93535, #6a1818);
  border: 1px solid #ff5555;
  color: #fff;
  font-family: inherit;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: 3px;
  margin-bottom: 12px;
  transition: all 0.2s;
}
.pvp-find-btn:hover {
  box-shadow: 0 0 20px rgba(255, 85, 85, 0.6);
}
.pvp-find-btn:disabled {
  background: linear-gradient(135deg, #2a2a2a, #1a1a1a);
  border-color: #555;
  color: #888;
  cursor: not-allowed;
}
.pvp-find-btn:disabled:hover { box-shadow: none; }
.pvp-hint {
  color: #aa6060;
  font-size: 11px;
  line-height: 1.5;
  font-style: italic;
}
@media (max-width: 600px) {
  .pvp-stat-row { grid-template-columns: repeat(2, 1fr); }
}