:root {
  --bg-dark: #1a1a2e;
  --bg-darker: #0f0f1a;
  --bg-panel: rgba(255,255,255,0.06);
  --accent: #e94560;
  --accent-hover: #ff6b81;
  --text-primary: #f0f0f0;
  --text-secondary: #a0a0b0;
  --border: rgba(255,255,255,0.1);
  --success: #2ed573;
  --warning: #ffa502;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Noto Sans SC', sans-serif;
  background: linear-gradient(135deg, var(--bg-dark), var(--bg-darker));
  color: var(--text-primary);
  min-height: 100vh;
  overflow: hidden;
}

.screen { width: 100vw; height: 100vh; }
.hidden { display: none !important; }

/* Login Screen */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-box {
  background: var(--bg-panel);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  width: 380px;
  text-align: center;
}

.game-title {
  font-size: 28px;
  font-weight: 700;
  background: linear-gradient(135deg, #e94560, #ffa502);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 24px;
}

.tab-bar {
  display: flex;
  gap: 0;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.tab {
  flex: 1;
  padding: 10px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.form-panel { display: none; }
.form-panel.active { display: block; }

.form-panel input {
  width: 100%;
  padding: 12px 16px;
  margin-bottom: 12px;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.form-panel input:focus {
  border-color: var(--accent);
}

.btn-primary {
  width: 100%;
  padding: 12px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-primary:hover { background: var(--accent-hover); }

.btn-secondary {
  padding: 8px 20px;
  background: rgba(255,255,255,0.1);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover { background: rgba(255,255,255,0.2); }

.error-msg {
  color: var(--accent);
  font-size: 13px;
  margin-top: 12px;
  min-height: 20px;
}

/* Lobby Layout */
.lobby-layout {
  display: grid;
  grid-template-columns: 240px 1fr 220px;
  height: 100vh;
  gap: 0;
}

/* Sidebar */
.lobby-sidebar {
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
}

.user-details { flex: 1; min-width: 0; }
.user-nickname { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-username { font-size: 12px; color: var(--text-secondary); }

.btn-logout {
  padding: 4px 10px;
  background: rgba(255,255,255,0.1);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-logout:hover { background: var(--accent); color: white; }

/* Mode Select */
.mode-select { display: flex; flex-direction: column; gap: 8px; }

.mode-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s;
  text-align: left;
  color: var(--text-primary);
}

.mode-btn:hover {
  background: rgba(233,69,96,0.15);
  border-color: var(--accent);
}

.mode-icon { font-size: 24px; }
.mode-label { font-size: 14px; font-weight: 600; display: block; }
.mode-desc { font-size: 11px; color: var(--text-secondary); display: block; }

/* Deck Pool */
.deck-pool-section h3 {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.deck-pool-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 200px;
  overflow-y: auto;
}

.deck-item {
  padding: 8px 10px;
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.deck-item:hover { border-color: var(--accent); }
.deck-item.selected { border-color: var(--accent); background: rgba(233,69,96,0.15); }

/* Chat */
.lobby-chat {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
}

.chat-header {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chat-header h2 { font-size: 16px; }
.online-count { font-size: 13px; color: var(--success); }
.conn-status { font-size: 12px; color: var(--warning, #f5d547); margin-left: 8px; }
.conn-status:empty { display: none; }

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.chat-msg {
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  max-width: 80%;
  word-break: break-word;
}

.chat-msg.public {
  background: rgba(255,255,255,0.05);
  align-self: flex-start;
}

.chat-msg.private {
  background: rgba(233,69,96,0.15);
  border: 1px solid rgba(233,69,96,0.3);
  align-self: flex-start;
}

.chat-msg.system {
  background: rgba(255,255,255,0.03);
  color: var(--text-secondary);
  font-style: italic;
  align-self: center;
  max-width: 100%;
  text-align: center;
}

.chat-msg .msg-sender {
  font-weight: 600;
  color: var(--accent);
  margin-right: 6px;
}

.chat-msg .msg-time {
  font-size: 11px;
  color: var(--text-secondary);
  margin-left: 8px;
}

.chat-input-area {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
}

.chat-input-area input {
  flex: 1;
  padding: 10px 14px;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
}

.chat-input-area input:focus { border-color: var(--accent); }

.btn-send {
  padding: 10px 20px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-send:hover { background: var(--accent-hover); }

/* Users Panel */
.lobby-users {
  padding: 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.users-section h3 {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.user-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.user-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s;
  font-size: 13px;
}

.user-item:hover { background: rgba(255,255,255,0.05); }

.user-item .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  flex-shrink: 0;
}

.user-item .user-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-item .user-actions {
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity 0.2s;
}

.user-item:hover .user-actions { opacity: 1; }

.btn-add-friend, .btn-chat {
  padding: 2px 8px;
  font-size: 11px;
  background: rgba(255,255,255,0.1);
  border: none;
  border-radius: 4px;
  color: var(--text-primary);
  cursor: pointer;
}

.btn-add-friend:hover { background: var(--success); }
.btn-chat:hover { background: var(--accent); }

/* Modals */
.modal {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  width: 320px;
  text-align: center;
}

.modal-content h3 { margin-bottom: 12px; font-size: 18px; }
.modal-content p { color: var(--text-secondary); font-size: 14px; margin-bottom: 20px; }

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.modal-actions .btn-primary { width: auto; padding: 8px 24px; }
.modal-actions .btn-secondary { padding: 8px 24px; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.3); }


/* ===== 卡组池 - 查看按钮 ===== */
.deck-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.deck-item-name {
  flex: 1;
  cursor: pointer;
}
.deck-view-btn {
  padding: 4px 10px;
  font-size: 12px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}
.deck-view-btn:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ===== 卡组查看浮窗 ===== */
.deck-viewer-content {
  max-width: 1100px;
  width: 95vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
}
.deck-viewer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.deck-viewer-header h3 {
  margin: 0;
  font-size: 18px;
}
.modal-close-btn {
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 20px;
  cursor: pointer;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.modal-close-btn:hover {
  background: var(--bg-secondary);
  color: var(--text);
}
.deck-viewer-subtitle {
  padding: 8px 20px 0;
  font-size: 13px;
  color: var(--accent);
  font-weight: 500;
}
.deck-viewer-desc {
  padding: 6px 20px 12px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.deck-viewer-stats {
  padding: 8px 20px 12px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
}
.stat-item {
  font-size: 13px;
  color: var(--text-secondary);
}
.stat-item strong {
  color: var(--text);
  font-size: 15px;
}
.deck-viewer-body {
  padding: 12px 20px;
  overflow-y: auto;
  flex: 1;
}
.deck-viewer-content .modal-actions {
  padding: 12px 20px 16px;
  border-top: 1px solid var(--border);
  margin-top: 0;
}
.deck-section {
  margin-bottom: 16px;
}
.deck-section:last-child {
  margin-bottom: 0;
}
.deck-section-title {
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--text);
  padding-bottom: 4px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}
.section-count {
  font-weight: 400;
  font-size: 12px;
  color: var(--text-secondary);
  margin-left: 4px;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 8px;
}
.card-mini {
  position: relative;
  padding: 8px 10px;
  border-radius: 6px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  font-size: 12px;
  line-height: 1.4;
}
.card-mini.card-type-trainer {
  border-left: 3px solid #9b59b6;
}
.card-mini.card-type-energy {
  border-left: 3px solid #f1c40f;
}
.card-mini.card-rarity-sar { border-top: 2px solid #e74c3c; }
.card-mini.card-rarity-sr { border-top: 2px solid #f39c12; }
.card-mini.card-rarity-rr { border-top: 2px solid #3498db; }
.card-mini.card-rarity-r { border-top: 2px solid #2ecc71; }
.card-count {
  position: absolute;
  top: 6px;
  right: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
}
.card-name {
  font-weight: 600;
  font-size: 13px;
  margin-bottom: 4px;
  padding-right: 28px;
  color: var(--text);
}
.card-meta {
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
.type-tag {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 10px;
  color: #fff;
  margin-right: 4px;
}
.type-fire { background: #e74c3c; }
.type-water { background: #3498db; }
.type-grass { background: #2ecc71; }
.type-electric { background: #f1c40f; color: #333; }
.type-psychic { background: #9b59b6; }
.type-fighting { background: #e67e22; }
.type-darkness { background: #555; }
.type-metal { background: #95a5a6; }
.type-dragon { background: #8e44ad; }
.type-fairy { background: #ff6b9d; }
.type-colorless { background: #bdc3c7; color: #333; }
.card-attacks {
  margin-top: 4px;
  padding-top: 4px;
  border-top: 1px dashed var(--border);
}
.attack-line {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
}
.attack-name { color: var(--text); }
.attack-dmg { color: var(--accent); font-weight: 600; }
.card-ability {
  margin-top: 4px;
  padding-top: 4px;
  border-top: 1px dashed var(--border);
  font-size: 11px;
  color: #f39c12;
}
.card-ability-desc {
  font-size: 10px;
  color: var(--text-secondary);
  margin-top: 2px;
}
.card-rarity-tag {
  position: absolute;
  bottom: 4px;
  right: 6px;
  font-size: 9px;
  padding: 1px 4px;
  border-radius: 2px;
  opacity: 0.7;
}
.rarity-sar { background: #e74c3c; color: #fff; }
.rarity-sr { background: #f39c12; color: #fff; }
.rarity-rr { background: #3498db; color: #fff; }
.rarity-r { background: #2ecc71; color: #fff; }
.rarity-u { background: #95a5a6; color: #fff; }
.rarity-c { background: #bdc3c7; color: #333; }

/* ===== 卡组查看 - 官方实卡扫图模式 v10 ===== */
.deck-card-image-item {
  position: relative;
  width: 100%;
  aspect-ratio: 600 / 825;
  border-radius: 6px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  background: #1a1a2e;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}
.deck-card-image-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.4);
}
.deck-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 6px;
}
.deck-card-count-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  background: rgba(0,0,0,0.8);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  z-index: 2;
  pointer-events: none;
}

/* 卡组卡图网格 - 适配更宽浮窗，6列左右 */
.deck-viewer-body .card-grid {
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 12px;
}

/* 单卡大图弹窗 */
.card-image-popup-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}
.card-image-popup-content {
  position: relative;
  max-height: 90vh;
  max-width: 90vw;
}
.card-image-popup-img {
  max-height: 90vh;
  max-width: 90vw;
  border-radius: 10px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
  display: block;
}
.card-image-popup-close {
  position: absolute;
  top: -12px;
  right: -12px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #fff;
  color: #333;
  border: none;
  font-size: 22px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.card-image-popup-close:hover {
  background: #f0f0f0;
}