/* =====================================
   按钮基础样式 - Button Base Styles (Steam风格)
   ===================================== */

/* 按钮基础类 */
.button-base {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 5px 8px;
    border: 1px solid var(--border-color);
    border-radius: 2px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    text-decoration: none;
    line-height: 1.4;
    min-height: 26px;
    box-sizing: border-box;
    background: transparent;
    color: var(--text-primary);
    gap: 5px;
}

.button-base:focus {
    outline: 1px solid var(--primary-color);
    outline-offset: 1px;
}

.button-base:disabled {
    cursor: not-allowed;
    opacity: 0.5;
    transform: none !important;
}

/* 主要按钮样式 */
.button-primary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-color);
    box-shadow: none;
}

.button-primary:hover:not(:disabled) {
    background: var(--bg-hover);
    border-color: var(--primary-color);
    transform: none;
    box-shadow: none;
}

.button-primary:active:not(:disabled) {
    transform: none;
    box-shadow: none;
}

/* 次要按钮样式 */
.button-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.button-secondary:hover:not(:disabled) {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-light);
}

.button-secondary:active:not(:disabled) {
    background: var(--bg-tertiary);
}

/* 提交按钮样式 */
.button-submit {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    width: 100%;
    font-weight: 500;
}

.button-submit:hover:not(:disabled) {
    background: var(--bg-hover);
    border-color: var(--primary-color);
    transform: none;
}

.button-submit:active:not(:disabled) {
    transform: none;
}

/* 菜单按钮样式 */
.button-menu {
    background: transparent;
    color: var(--text-secondary);
    padding: 6px;
    border-radius: 2px;
    min-height: 32px;
    width: 32px;
    height: 32px;
    border: 1px solid var(--border-color);
}

.button-menu:hover:not(:disabled) {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.button-menu.active {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

/* 分页按钮样式 */
.button-pagination {
    background: transparent;
    color: var(--text-secondary);
    padding: 4px 8px;
    min-width: 32px;
    font-size: 13px;
    border: 1px solid var(--border-color);
    border-radius: 2px;
    min-height: 26px;
}

.button-pagination:hover:not(:disabled) {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.button-pagination.active {
    background: var(--bg-active, var(--bg-tertiary));
    color: var(--text-primary);
    border-color: var(--primary-color);
}

/* 尺寸变体 */
.button-small {
    padding: 3px 6px;
    font-size: 12px;
    min-height: 24px;
}

.button-large {
    padding: 8px 16px;
    font-size: 14px;
    min-height: 36px;
}

.button-full-width {
    width: 100%;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .button-base {
        padding: 5px 8px;
        font-size: 13px;
        min-height: 26px;
    }
    
    .button-small {
        padding: 3px 6px;
        font-size: 12px;
        min-height: 24px;
    }
    
    .button-large {
        padding: 6px 12px;
        font-size: 13px;
        min-height: 32px;
    }
}

/* 深色主题兼容 */
@media (prefers-color-scheme: dark) {
    .button-secondary {
        background: rgba(255, 255, 255, 0.08);
        border-color: rgba(255, 255, 255, 0.12);
    }
    
    .button-secondary:hover:not(:disabled) {
        background: rgba(255, 255, 255, 0.15);
    }
}

/* 具体按钮类定义 - 这些类被HTML直接使用 */
.search-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px;
    border: 1px solid var(--border-color);
    border-radius: 0 2px 2px 0;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    text-decoration: none;
    line-height: 1.4;
    min-height: 32px;
    min-width: 32px;
    box-sizing: border-box;
    background: transparent;
    color: var(--text-secondary);
}

.search-btn:hover:not(:disabled) {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.sort-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 10px;
    border: 1px solid var(--border-color);
    border-radius: 2px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    text-decoration: none;
    line-height: 1.4;
    min-height: 26px;
    box-sizing: border-box;
    background: transparent;
    color: var(--text-secondary);
}

.sort-btn:hover:not(:disabled),
.sort-btn.active {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 8px;
    border: 1px solid var(--border-color);
    border-radius: 2px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    text-decoration: none;
    line-height: 1.4;
    min-width: 32px;
    min-height: 26px;
    text-align: center;
    box-sizing: border-box;
    background: transparent;
    color: var(--text-secondary);
}

.page-btn:hover:not(:disabled) {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.page-btn.active {
    background: var(--bg-active, var(--bg-tertiary));
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.action-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 5px 8px;
    border: 1px solid var(--border-color);
    border-radius: 2px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    text-decoration: none;
    line-height: 1.4;
    min-height: 26px;
    box-sizing: border-box;
    background: transparent;
    color: var(--text-secondary);
}