/* ============================================
 * 按钮系统样式
 * 主按钮/次按钮/危险按钮/禁用态/加载态/品质色按钮
 * ============================================ */

/* ---- 按钮基础 ---- */
.g-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 20px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.g-btn:active {
  transform: scale(0.97);
}

/* ---- 主按钮（金色） ---- */
.g-btn-primary {
  background: linear-gradient(180deg, var(--primary-hover) 0%, var(--primary) 100%);
  border-color: var(--primary);
  color: var(--bg-dark);
  text-shadow: 0 1px 0 rgba(255,255,255,0.1);
}

.g-btn-primary:hover {
  background: linear-gradient(180deg, #f0d06a 0%, var(--primary-hover) 100%);
  box-shadow: 0 0 12px rgba(200,155,60,0.4);
}

.g-btn-primary:active {
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-active) 100%);
}

/* ---- 次按钮（描边） ---- */
.g-btn-secondary {
  background: transparent;
  border-color: var(--border-light);
  color: var(--text-secondary);
}

.g-btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(200,155,60,0.06);
}

.g-btn-secondary:active {
  border-color: var(--primary-active);
  color: var(--primary-active);
}

/* ---- 危险按钮（红色） ---- */
.g-btn-danger {
  background: linear-gradient(180deg, var(--red-bright) 0%, var(--red) 100%);
  border-color: var(--red);
  color: #fff;
  text-shadow: 0 1px 0 rgba(0,0,0,0.2);
}

.g-btn-danger:hover {
  background: linear-gradient(180deg, #f06060 0%, var(--red-bright) 100%);
  box-shadow: 0 0 12px rgba(196,75,75,0.4);
}

.g-btn-danger:active {
  background: linear-gradient(180deg, var(--red) 0%, #a03a3a 100%);
}

/* ---- 禁用态 ---- */
.g-btn-disabled,
.g-btn[disabled] {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* ---- 加载态 ---- */
.g-btn-loading {
  position: relative;
  pointer-events: none;
  color: transparent !important;
}

.g-btn-loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: currentColor;
  border-radius: 50%;
  animation: g-btn-spin 0.6s linear infinite;
}

.g-btn-primary.g-btn-loading::after {
  border-top-color: var(--bg-dark);
  border-color: rgba(30,35,41,0.3);
  border-top-color: var(--bg-dark);
}

@keyframes g-btn-spin {
  to { transform: rotate(360deg); }
}

/* ---- 按钮尺寸 ---- */
.g-btn-sm {
  padding: 5px 12px;
  font-size: 12px;
}

.g-btn-lg {
  padding: 12px 28px;
  font-size: 16px;
}

/* ---- 品质色按钮 ---- */
.g-btn-quality {
  background: transparent;
  border-width: 1px;
  color: var(--q-color, var(--text-secondary));
  border-color: var(--q-color, var(--border-light));
}

.g-btn-quality:hover {
  background: color-mix(in srgb, var(--q-color, var(--text-secondary)) 10%, transparent);
  box-shadow: 0 0 8px color-mix(in srgb, var(--q-color, var(--text-secondary)) 30%, transparent);
}

.g-btn-quality.q-common    { --q-color: var(--q-common); }
.g-btn-quality.q-magic     { --q-color: var(--q-magic); }
.g-btn-quality.q-rare      { --q-color: var(--q-rare); }
.g-btn-quality.q-legendary { --q-color: var(--q-legendary); }
.g-btn-quality.q-unique    { --q-color: var(--q-unique); }
.g-btn-quality.q-set       { --q-color: var(--q-set); }

/* ---- 按钮组 ---- */
.g-btn-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

/* ---- 按钮展示区辅助 ---- */
.btn-demo-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.btn-demo-label {
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 1px;
  min-width: 60px;
}