/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0 var(--space-xl);
  height: 44px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  border: none;
  outline: none;
  transition: transform var(--duration-fast), opacity var(--duration-fast), box-shadow var(--duration-fast);
  white-space: nowrap;
}
.btn:active { transform: scale(0.96); opacity: 0.88; }

.btn-primary {
  background: var(--color-primary-gradient);
  color: white;
  box-shadow: 0 10px 18px rgba(255, 132, 71, 0.28);
}
.btn-primary:active { box-shadow: 0 6px 10px rgba(255, 132, 71, 0.18); }

.btn-secondary {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.btn-white {
  background: white;
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.btn-ghost {
  background: var(--color-glass-dark);
  color: white;
  border: 1px solid rgba(255,255,255,0.3);
}

.btn-danger {
  background: var(--color-red);
  color: white;
  box-shadow: 0 4px 14px rgba(255,82,82,0.3);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.btn-sm {
  height: 34px;
  padding: 0 var(--space-md);
  font-size: var(--font-size-sm);
}

.btn-lg {
  height: 52px;
  font-size: var(--font-size-lg);
}

.btn-full { width: 100%; }

.btn:disabled {
  opacity: 0.45;
  pointer-events: none;
}

/* ===== 卡片 ===== */
.card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.card-body {
  padding: var(--space-lg);
}

/* ===== 头像 ===== */
.avatar {
  border-radius: var(--radius-full);
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.avatar-sm { width: 36px; height: 36px; font-size: 14px; }
.avatar-md { width: 48px; height: 48px; font-size: 18px; }
.avatar-lg { width: 64px; height: 64px; font-size: 24px; }
.avatar-xl { width: 80px; height: 80px; font-size: 30px; }

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-red { background: var(--color-red-light); color: var(--color-red); }
.avatar-blue { background: var(--color-blue-light); color: var(--color-blue); }

/* ===== 徽章 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
}
.badge-new { background: var(--color-red); color: white; }
.badge-hot { background: var(--color-gold); color: white; }
.badge-primary { background: var(--color-primary-light); color: var(--color-primary); }

/* ===== Tag ===== */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.tag-red { background: var(--color-red-light); color: var(--color-red); }
.tag-blue { background: var(--color-blue-light); color: var(--color-blue); }
.tag-gold { background: var(--color-gold-light); color: var(--color-gold); }

/* ===== 进度条 ===== */
.progress-bar {
  height: 6px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--color-primary-gradient);
  border-radius: var(--radius-full);
  transition: width var(--duration-slow) var(--ease-out);
}
.progress-fill-gold {
  background: linear-gradient(90deg, #FFB800, #FF8C00);
}

/* ===== Divider ===== */
.divider {
  height: 1px;
  background: var(--color-divider);
  margin: var(--space-md) 0;
}

/* ===== Toast ===== */
.toast-container {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 9999;
  pointer-events: none;
}

.toast {
  background: rgba(0,0,0,0.75);
  color: white;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  text-align: center;
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--duration-normal);
  max-width: 240px;
  line-height: 1.5;
}
.toast.show { opacity: 1; }

/* ===== 底部弹出面板 ===== */
.sheet-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 100;
  opacity: 0;
  transition: opacity var(--duration-normal);
  pointer-events: none;
}
.sheet-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

.sheet {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: white;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  z-index: 101;
  transform: translateY(100%);
  transition: transform var(--duration-slow) var(--ease-spring);
  padding-bottom: calc(var(--space-xl) + var(--safe-area-bottom));
}
.sheet.show {
  transform: translateY(0);
}

.sheet-handle {
  width: 36px;
  height: 4px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  margin: var(--space-md) auto;
}

.sheet-header {
  padding: 0 var(--space-xl) var(--space-md);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

/* ===== Dialog ===== */
.dialog-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal);
}
.dialog-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

.dialog {
  background: white;
  border-radius: var(--radius-xl);
  width: 280px;
  overflow: hidden;
  transform: scale(0.85);
  transition: transform var(--duration-normal) var(--ease-spring);
}
.dialog-overlay.show .dialog { transform: scale(1); }

.dialog-header {
  padding: var(--space-xl) var(--space-xl) var(--space-md);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  text-align: center;
}

.dialog-body {
  padding: 0 var(--space-xl) var(--space-xl);
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  text-align: center;
  line-height: 1.6;
}

.dialog-footer {
  display: flex;
  border-top: 1px solid var(--color-divider);
}

.dialog-btn {
  flex: 1;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: background var(--duration-fast);
  color: var(--color-text-secondary);
}
.dialog-btn:active { background: var(--color-divider); }
.dialog-btn + .dialog-btn { border-left: 1px solid var(--color-divider); color: var(--color-primary); font-weight: var(--font-weight-semibold); }

/* ===== Loading Spinner ===== */
.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner-primary {
  border-color: var(--color-primary-light);
  border-top-color: var(--color-primary);
}

/* ===== 空状态 ===== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl) var(--space-xl);
  color: var(--color-text-hint);
  gap: var(--space-md);
}
.empty-state-icon { font-size: 48px; }
.empty-state-text { font-size: var(--font-size-sm); }

/* ===== 玩家槽位 ===== */
.player-slot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  flex: 1;
}
.player-slot-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  max-width: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.player-slot-status {
  font-size: var(--font-size-xs);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  color: var(--color-text-hint);
}
.player-slot-status.ready {
  background: rgba(76,175,80,0.15);
  color: var(--color-green);
}

/* ===== 金币显示 ===== */
.coin-display {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-gold);
}
.coin-icon { font-size: 16px; }

/* ===== 红点 ===== */
.red-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-red);
  position: absolute;
  top: 2px;
  right: 2px;
}